ESD
No

Subject

SchoolPresnter

1

BETWEEN TRADITIONAL FISHING
AND RESORT DEVELOPMENT

Chiba Prefectural Narita Kokusai High school

KOYANO Kaho

KOZASA Rinako

2

Brexit and Impact on Japan

Shibaura Institute of Technology
Kashiwa High School

TAKAHASHI Tomoya

FUKUI Ryuma

3

Bubble Economy

Shibaura Institute of Technology
Kashiwa High School

YASUNISHI Yuki

4

Chiba Reimei High School 2017

Chiba Reimei High School

YAMADA

5

Culture of STAND UP MEALS

HidetoSATO

ManamiSHIINA Hikari

HATAKEYAMA Hayate

SUGA Sana

SUGAWARA Daiki

OTAKE Yuki

KUDO Kaya

MAKINO Misa

ITO Miyu

NOZAWA Kira

MATSUTA Megu

MIYAZAKI Saya

WATANABE Momoka WATANABE Yukino

TAKEUCHI Aika

KHALID Zain

HIRAOKA Karen

MIYAUCHI Kotomi

YAMAMOTO Uta

NISHIGAKI Moe

MARUTANITANAKA

Makuhari Junior and Senior High School
HASHIMOTO Manami

6

7

Does true coexistence really exist?

Dream・Enthusiasm・Challenge～Enjoy learning and open up the future～

Chiba Prefectural Narita Kokusai High school

Nagareyama Otakanomori High School

8

Education in Japan

Chiba Prefectural Chiba Higashi High school

9

ESD in Sakura Minami High School

Chiba Prefectural Sakura Minami High school

Yuna

Runa

KOSHIZUKA Aya

CHINEN Yumi

MAGARA Machiru

YOKOYAMA Keisuke

KOUBO Kanki

10 Fair Trade in the Future

Ichikawa High School

ISHIDO Ikoi

11 Global Leaders from Japan!

Reitaku Junior ＆ Senior High School

ITO Akane

12 HOW TO TELL MORE PEOPLE ABOUT WAR

Chiba Prefectural Sakura High school

NAKAZONO

13 How would the ideal tourism development look? Chiba Prefectural Narita Kokusai High school

KAWAHARA Hitomi

Yuna

TAKITA Sae

WAKI Chihiro

KIMURA Hitomi

HOYA

KAWABATA Yui

SUZUYA Akihiro

HARADA Yukako

ICHIKAWA Ryosuke

MIZUOKA Asami

Keito

14 2016-2017 About our resarch

Chiba Prefectural Schoolfor the vidually impaired

ISHI Genki

15 Ichihara Chuo High School Activity report

Ichihara Chuo High School

KASHIWABARA Miyu JANG Taehyun

No
16

Subject
Japanese Blood Donation～Until Now and Into the Future～

SchoolPresnter

Ichikawa High School

SATI Yuhi

17 Japanese Fermented Foods

Chiba Prefectural Yakuendai High school

YOSHIZAWA

18 Japanese live together with foreigners

Chiba Prefectural Narita Kokusai High school

NISHIMOTO Yuri

NEGISHI Rei

UMEDA Maika

AIKAWA Misa

ITO Nozomi

Chiba Prefectural Sakura High school

UEDA Ibuki

NODA

20 Newspaper During WWⅡ

Shibaura Institute of Technology
Kashiwa High School

SUEHIRO Taketo

TERADA Kento

YAMAZAKI Yuki

21 Only learning English will become obsolete

Chiba Prefectural Chiba Higashi High school

KANEKO Emi

22 Origin of Japanese

Shibaura Institute of Technology
Kashiwa High School

SAITO Motoki

TANIFUJI Momoe

IZUMI Nao

TSURUTA Jukiya

23 The Best Choice of Evacuation Routes

Chiba Prefectural Sakura Minami High school

SAKURAI Tasuku

OONO Takahiro

19

24

LEARN FROM YOKAI～THE DIFFERENCE BETWEEN JAPAN AND OVERSEAS～

The efforts of JICA in Africa and futureinternational cooperation

Rei

Chiba Prefectural Chiba Higashi High school

KAMIYAMA Yuriko

25 THE TRANSITION OF THE LAW SYSTEMS IN JAPANShibaura Institute of Technology
Kashiwa High School

IIDA Sachiyo

26 TTBiz Program

Ichikawa High School

OSAKI Tomoyo

27 What do you think is Japan like?

Chiba Prefectural Chiba Higashi High school

HASEBE Mao

28 What we can do to make a sustainable society

Chiba Prefectural Kamagaya Nishi High school

ARISAKA Miyuu

Ryoma

SATO Asami

SATO Takumi

HOUKOU MarinFURUKAWA Saya

SAKAKI Natsuki

29 WHY THE YOUTH ARE ATTRACTED TO ISIS

Shibaura Institute of Technology
Kashiwa High School

KUROHA Satoru

YOSHIOKA Yuya

AP Physics
No

Subject

SchoolPresenter

1

The Darkness Sensitizes the Phototaxis
Sensitiveness of The Stink Bug

Chiba Prefectural Sakura High school

KASHARA Yuichiro

2

ばね電話

Ichikawa High School

NEKOMOTO Rin

3

ジュールーフシーフを用いて乾電池からエネルギーを引き出す

Ichikawa High School

INOUE

4

Water drops on various surfaces

Ichikawa High School

MASUDA

5

Stability of Chinese yoyo

Ichikawa High School

AKINO

6

Angular Velocity and Record time of Eddy

Chiba Prefectural Chosei High School

MUTO Sayaka

7

Ultraviolet radiation intensity
in several different conditions

Chiba Prefectural Chosei High School

KOIDE

8

Siphon Principle

Chiba Municipal ChibaHigh School

OHTSUKA Kouki

OWA Takuji

9Shape of instruments,Material and Tone

Chiba Municipal ChibaHigh School

IMURA Miu

KIKUNO Haruto

10 Congestion caused at Junctions

Chiba Municipal ChibaHigh School

MIZUKAMI Shouhei

KOJIMA Takuma

11 Relation between a rise and the lift

Chiba Prefectural Yakuendai High school

YOSHIDA

Hisanari

NAGAI

12 Visualization of an earthquake wave

Chiba Prefectural Yakuendai High school

MATSUDA

13 Study of Dye-sensitized Solar Cells

14

Study of Piezoelectric Element with Sodium
Chloride

OMORI Hanaki

Yuki
SyoujunToshimune

Makiko

Akira

Kaede

DOBASHI Ryouya

IWAASA Hiromasa

KAWAJIRI Kanae

Chiba Prefectural Awa High school

KAGEYAMA Takumi

KAWABATA Yuta

Chiba Prefectural Awa High school

KOICHI Ryosei

WASHIZU Takato

KANSAKU Yoshitaka

AP ChemistryNo

Subject

SchoolPresenter

15 Bouncing Jet

Ichikawa High School

MURAKAMI Masaki

16 Making of Cellulose Nanofiber

Ichikawa High School

HAGIMORI Ayumi

YAMAMOTO Kaho
OKIKAWA Yuki

17

The stickiness of Natto～The reason of mixing NATTO～

Chiba Prefectural Chiba Higashi High school

NAKAO

18

Generation of Sodium Carbonate
by Leblanc Method

Shibaura Institute of Technology
Kashiwa High School

TAKAHARA Masaki

KANO Kazuma

HASHIZUME
Masafumi

FURUKAWA Takahiro FURUYA Kazuma

19

Synthesizing amino acids applying
Miller-Urey Experiment

Shibaura Institute of Technology
Kashiwa High School

Shiho

MATSUMOTO Naoya

20 The sterilization action of Polyphenol

Shibaura Institute of Technology Kashiwa
High School

OOHATA Youhei

KASAO Shunsuke

KURAMOCHI Yusuke

21 Let's make a strong soap bubble!

Shibaura Institute of Technology Kashiwa
High School

KAJI Yuki

KISHINAMI Akane

CHIBA Yukina

22 Produce of Preserved Flower with Natural Dye

Chiba Prefectural Awa High school

NISHIMURA Hoshimi

23

Study of Optimal Planting Time ofa Fuel cell Catalyst

Chiba Prefectural Awa High school

NEMOTO Masahiro

KONDO Kazuki

24Study of the Biodegradation of
Artificial Salmon Roe

Chiba Prefectural Awa High school

CHUGO Soma

KAMIYAMA Yosuke

AP Biology
No

Subject

SchoolPresenter

25

Effect of footbath on body temperature, blood,pressure and pulse

Chiba Prefectural Higashi Katsushika High school

TAGUCHI Rin

26

Relationship between atmospheric pressureand headache

Chiba Prefectural Higashi Katsushika High school

IMADA Akane

27

Plants grown up restraint action and recycling
by coffee

Ichikawa High School

SAKAI Takuto

28 Antibacterial effect Phelldendron amurense

Chiba Prefectural Chiba Higashi High school

29 Eatable flower

Chiba Prefectural Kisarazu High school

30 Japanese Rice

Chiba Prefectural Kisarazu High school

INOUE HiroAISO Rina

MIYAZAKI Hirokazu

KIMURA Aoi

KAIZUKA Haruka

ABE

KITAMURA Aoi

KUWADA Momoka

KANEKI Rena

TAIRA Sachiko

KAGEYAMA Yui

OKUNO Takumi

Yayoi

YAMADA Nene
SAITO Tamano
MIDORIKAWA Mahiro

31 The ecology of loggerhead turtle

Chiba Prefectural Kisarazu High school

UNOKI Mio

The genelation of LM pectin
under several conditions

Chiba PrefecturalChosei High school

KOIDE Mana

Shibaura Institute of Technology
Kashiwa High School

ASAOKA Haruka

ENOMOTO Yuki

SAITO Haruka

SANO Yuka

32

33 The Growth of Kaiware Using Different Liquids
34

What Kind of aqueous Solutions can
Grow Spring Onions Faster?

Shibaura Institute of Technology
Kashiwa High School

TAKENAGA SakiMIZUKOSHI Saki

YAMAMOTO Yuzuki

35 Whether Drosophila Grows Big

Shibaura Institute of Technology
Kashiwa High School

SOMEYA Kyoka

NAKAZAWA Sayaka

WATANABE Hodaka

36 Study of Chlorophyll

Chiba Prefectural Awa High school

SUZUKI Moe

Toho University attched Toho High School

ICHIJO Sayori

KAWAZU Akihiro

KEITOKU Ryo

37

Differntial sensitivity of trypsin digestion of egg
proteins caused by its cooking methods.

AP Mathematics
No

Subject

38 The Decimal Parts of Powers

39 Was the Fermat's margin really narrow?

SchoolShibaura Institute of Technology
Kashiwa High School

Shibaura Institute of Technology
Kashiwa High School

Presenter
KATO Taiki

YAJIMA Tomoaki
OTAKI Tomoya

KAMIMAE Masatomo KUBOTERA Kei

KOBAYASHI Fumiya

TACHIBANA Takuro1   

http://www.y-history.net/appendix/wh1701-055.html
http://www.mofa.go.jp/mofaj/area/eu/index.html
http://manapedia.jp/text/1348
http://www.y-history.net/appendix/wh1701-055.html

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・7KHUHVXOWRIWKHUHIHUHQGXPRIWKH(8VHFHVVLRQMalaccamanufacturingindustry

Serviceindustry

The

Duty import

Construction（）

0

Increase
Price of fish
Rise

Be leveled
Forests
Be destroyed

Marineanimals
Can’t live

Costs of fuelBe polluted

Mountains

Have togo far

100
0

FISHERMEN

200
5

It is also relevant to
Japan

Resortdevelopment isessential to the
Malaysiangovernment<source:成田国際空港 | 国土交通省東京航空局>①Demonstrate
against government②Plant mangroves③Establish “PIFWA”

FISHERMEN<Source：「マレーシアの観光政策」incorporated foundation CLAIR>

300
10

400

500

600

15

20

25

30

35

Reclaim land

DEVELOPERS

Sea<Source：Earsten&Oriental>▼Trends in the number of visitors from overseas & tourism income in Malaysia

Environment is something thatalways exists around us

Supports
development

GOVERNMENT

Source：「ペナンの経済概況」在ペナン日本国総領事館経済班▲Industrial structure of Penang state

46%

Give land transfer for
resort development!

Constructcondominiums

DEVELOPERS▲The popular states to foreign tourists

PenangKuala
LumpurAgriculture

Grew up by the manufacturing andservice industry

Trading port in the colonial period by
the U.K.

KOYANO KAHOKOZASA RINAKOSHIINA HIKARINARITA KOKUSAI HIGH SCHOOL

We went to Malaysia to study about relation between development and environmental
problems.

RM   

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AND RESORT DEVELOPMENT

Tourism income(8FRXQWULHV↓

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Visitors

2・Volunteer staﬀ for the regional public library

Program focusing on international

etc..

OutcomeSchool trip ( to see areas devastated by the Great East Japan Earthquake)
Interaction with TORYO HIGH SCHOOL at Miyagi prefecture.

Activity 3

Program for preparation against natural disasters

・Volunteer staﬀ for regional joint antidisaster drill

・Special Olympics Program

・Interaction with Sodegaura special support education school

Welcoming regional primary school
students as their ﬁeld trip

as well as awareness of current problems in society.

“how can we contribute to our society?” as they develop a greater sense of responsibility as a member of the society,outside the classroom.Through the program,many students starts to think “what can we do for our society?” andESD provides invaluable opportunities for students to feel and think about our community,which are only accessible

Practicing ESD gives us a sense of exaltation, which is totally diﬀerent from what we feel from conventional lectures.

Bruce H.Bessert,professor from Concordia University,
visiting our school and attending calligraphy andEnglish class.

understandingn・Managing ﬂowers with JEF UNITED CHIBA and Chiba city

・Helping regional events

Activity 2

ha

a
tc

?

Seeing oﬀ athletes leaving for Rio-Paralympics(at the Narita international airport)oIdthat W
servescommunity
needs

ESD

Open-school lecture at PC room

・Street fund-raising for Red Feather Campaign and Year End Campaign

・Volunteer staﬀ for elections

・Kids summer camp leader

Other volunteer activities

Event staﬀ for child Footballers under theage of 6 (from the soccer club)

Learning support at primary school

Volunteer work (communication with the community)

Chiba Reimei High School
Activity 1
2017

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Private school(SMK Sungai Pelek)

Public school

Socialize with peers regardlessof ethnic group

Strong sense of identity related
to their ethnic group

Malaysian government

One of the reasons thatpeople are separated??

27%

Their identity is not strongly tiedto ethnicity.

Grouped by ethnic groups

Conclusion

66%

100%

“MALAYSIANS”

We are all

Malay

Malay

Malaysboth schools havestrong and weak points
we cannot say which
one is better.

（slogan）

One Malaysia！

Chinese

Malay

Malays・・・

Malay

Tamil

ChineseAfter?

independence

Others

1999

38%

MalaysIndians

Indians2%

ChineseIndians 7%

JuniorHighSchool

Primary School

Before19%

independence

Chinese63%

1970
Foreigner

28%

1% 6%

2%

→ Necessity of a united nationted

It’s unfair!

Malays!!

Why always only

😕😕

ints

Good poBad points🤑🤑

ChineseChinese andIndians

Make the people uni😁😁

MalaysMalaysian government

・Present

１９９0

iputerapolicy ）😒😒

Malaysindependence Bum

・After・Beforeindependence

Share of wealth33%

Well understood

Well understood

Understanding ofother ethnic groups

8%

Mixed

Separated

Mixing ofethnic groups

Tamil, English

EnglishEnglish*Malay
Malay, Chinese(Seri Cahaya School)

Private school(SMK Sungai Pelek)

Public school

Chinese, Tamil, English

Malay（National Language）,

Casualconversation

Language usedin classes

・Language↪︎Malays ６７％ Chinese２５％ Indians７％・National Religion Islam………etc

・Population 29,950,000

・Capital City Kuala Lumpur

Malaysia～Considering with historical background～Private School
Seri Cahaya School

Public School
SMK Sungai Pelek

What is “coexistence”? We had an image that people understand the diﬀerences with each other and build a good
relationship. However, we realized it was not so simple through Malaysia Fieldwork…

Does true coexistence really exist?

Narita Kokusai High School SGH

Italian@IndiaSushi

 ・Outdoors

meal



Soba

・very light meals

・wine + bread@ParisStand up bars with appetizers

 ・Stand up and eat a small

 ・No tables@Manila, Philippines

 ・Small amount ・Hygiene problems

Common Filipino street ffo
foods
ods

booths/ stalls

学校法人ᴾ 渋谷教育学園ᴾ 幕張中学校・高等学校ᴾ
ＭＡＫＵＨＡＲＩᴾ ＪＵＮＩＯＲᴾ ＡＮＤᴾ ＳＥＮＩＯＲᴾ ＨＩＧＨᴾ ＳＣＨＯＯＬᴾ

Steak

Example of Stand up Meals

2010
New franchise stores start providing new standup meals with food such as steak and sushi

Provide consumers cheap, fast and tasty foodRegains popularity due to:After 1990’sbanning street stalls

Stalls die out due to regulations


1990’sSoba-eating stalls near stations
become highly popular

1950-1990’s

Soba-eatingstalls are created1680’sStand-up Soba

History ofWORLD--> price is lower  -> can eat quickly ・for Customers : Compared with restaurants

 --> customers turnover rate goes up ↗
--> profit rate per area goes up ↗ ・for Shops: Not having chairs    Benefit

4

 

7 - 12



13 - 15

16 - 18

19 ＋

University/Graduate
University/
schoolHighereducation

Students are afraid of being scolded by teachers, and it causes them to become passive toanswer in a class.

University tuition in Japan is more expensive, especially in private universities than inother developed countries.



Education is provided to students with a prescribed curriculum in each school, and they
can't select all their subjects that they're interested in or they'll use in the future, evenwhen they become high school students.

Incorporating an active attitude to survive in difficult communities and overseas educational
systems, as students will be able to learn what they're really interested in and enjoy theirstudy.

4. Tasks for education in Japan

3. Demerits of education in Japan

Japanese tend to have hesitant and it improves the way of surviving in a social
community.

All students keep up with their studies at least at the standard that Japanese Government
defines.

High school

Combined junior and high school

Junior highschoolSecondary education

Aya Koshizuka

2. Merits of education in Japan

3-6

Elementary
schoolKindergarden/
Preschool/
Nurcery school

Ages:

Elementary
education

Preschool
education

1. What is educational system in Japan like?

Education in Japan

We hold an English Speech Contest
every year for neighboring J.H.S
students.
Also,
internationalcourse students MC the contest
and talk about their experiences at
Otaka.

Learning Through Experience

High School Students are Teachers

International course students go toelementary schools in Nagareyama City andteach English to the students.

We interact with our neighbors
through “Fieldwork”. Student-centeredclasses are conducted at our school.

Relationship with J.H.S.

We go to Cairns in Australia to study
English every year. We stay with families
while attending school. We not only study
English and Australian culture but
introduce Japanese culture.

Studying English in Australia

American Summer CampInternational course students go to an
English camp during the summer and spend 3
days with American university students
speaking all in English.

Let’s think about Otaka’s charm !

・Some students attended the intensive study camp offered by our school.
・ALT(Assistant Language Teachers) come to our English classes.
We don’t use Japanese in class.

・We invite nursery school children to our cultural festival.
・With neighboring schools, we have a “Hello” campaign.
・Some club activities such as Drama, Brass Band, Chorus and
JRC volunteer and perform for local neighborhoods.
interact with neighbors.

・Archery Club took second place in the Inter-High Tournament.
・Broadcasting Club took part in the Inter-High Tournament.
・Baseball Club took 32nd place in the Prefectural Tournament.

UNESCO School

We are a part of the UNESCO ASPNet.
We have an opportunity to interact withschools all over the world.

18-year-old high school students havethe right to vote and it’s important
for them to have an interest in politics.

Presentation by Diet Members

We interact with exchange
students from Reitaku University.

Exchange Students Are Teachers

Today’s goal

～ Enjoy learning and open up the future～～Enjoyfuture ～5¥70 cheap
Not Fair trade
Up to you.

Some 5,000 bars

¥350 expensive

Fair trade

Good!

Price

The reason for its price

taste

Good!

Brand name¥600 expensive

Some 140,000 cups

Frappuccino at Starbucks

Chocolates

Lamps

Coin cases<The Third World Shop>

Candles

Earrings

Hand cream<Kru Khmer>

Cards<scoo>

Bags

Book covers<Atelier Likha>

Coffee<Namakemono coffee>

Soap<Shaplaneer>

http://www.p-matsuura.co.jp/パッケージマーケティング/3095.html『People Tree』
http://www.peopletree.co.jp『シサム工房』
http://www.sisam.jp『Atelier Likha』
http://likha.shop-pro.jp『Shaplaneer』
https://www.shaplaneer.org

more investigation, I noticed that there is more room for
improvement in the fair trade business.
I am planning to visit the U.K., the birth place of fairtrade. I hear that in the U.K., there are lots of charity
shops on busy streets like Japan’s Ginza district.
However, I should bear in mind the fact that somecompanies do abuse the image of fair trade. With this inmind, I wish to find “real fair trade”.

『スタバの｢フラペ｣が 1 日 40 万杯売れる理由』<To sum up>
http://toyokeizai.net/articles/-/98226
I thought I already knew a lot about fair trade, but through『ロッテのガーナミルクチョコレート国内Ｎｏ．１売上げの板チョコ パッケージが売上げの鍵だった！』<Reference>

Some companies engage in fair trade activities since they are concerned with their own public image or reputation. In Japan, that sort of “abusing the image of fair trade”
might not be so common, but in other countries where fair trade business is common, such abuse is happening, I hear.
A few people might be interested in fair trade but they might think “Is this information on fair trade really trustworthy?” For the benefit of those people, companies should
clearly indicate to consumers how their fair trade enabled some children to go to school, or made changes in their income levels.

<How to improve the concept of fair trade>

I really do not want to recommend all these products (since they will not be “my own”). Atelier Likha, a Japanese NGO in the Philippines, where I served as a volunteer,produces a nice book cover, and it is my favorite. Thus, there are already so many well designed fair trade products. The next step is to consider how to make those fairtrade products better known. Since my mother is selling fair trade products, I often have fair trade chocolates, cocoa, jam, and curry powder. I also use a fair tradecommuter’s purse.
I know there are students who research fair trade and make their “advertisements” in their social studies classes. I do think they are interested in fair trade; then I would
like to ask them: “Are you spreading the idea of fair trade after actually eating or trying fair trade products to know them better?”
You know, fair trade products are really tasty. They are cute. And they have such a high quality.
Of course, the reason why we should spread the concept of fair trade is precisely their fairness-orientation. If that is everything, however, youngsters would eventually
avoid going for fair trade products. They are tasty and they are fashionable. I hope to introduce fair trade products for these reasons.
One of the tools for me in this context is using social network service (SNS).
I am also planning to introduce fair trade products during school cultural festivals. I would like to display those fair trade products in a hallway and not in a classroom, sothat everyone who passes by can have a look at them. Then, even after the festival, those who did not purchase the displayed fair trade items might later think: “Oh this afair trade product, which I saw in the cultural festival!”

Brooches<sisam><people tree>

From this, it seems there are two differences between fair-trade chocolate and Ghana chocolate (or Starbucks Frappuccino).
・Package design
・Gaining popularity because of SNS
And then, there are already well designed Fair trade products. I’m going to introduce some of those products.

Then why are the sales of Fair trade products not so good?
The sales of Ghana chocolate went up rapidly because of its red package. Meanwhile, Starbucks Frappuccino has the transparent cup (with a logo) throughwhich the colorful content can be seen. Youngsters find the design so “cute!”, and, every time the company makes a new line up of drink, they love to upload
photos through SNS.

<What the table shows>Ghana chocolate is cheap and sells well. “The cheaper, the more sales?” Not necessarily, since Frappuccino, rather expensive, sells well. That is, quality issometimes more important than the price. Further, expensive fair-trade chocolate seems more justifiable than expensive Starbucks Frappuccinos.

Ghana chocolate
Some 5,000,000 pieces

Fair Trade chocolate

Daily sales

The important key words are "consumption voting"If you pay attention to the destination of money you pay for what you buy, it’s just like “voting”; society will change.
Let us compare fair-trade chocolate and other similar (but non-fair trade) products, to discover what fair trade is.

“Shopping is about voting for the sort of society you like”

Fair Trade in the Future

Ichikawa high school 1-9 Ikoi Ishido

Ｉｎｔｅｒａｃｔｉｏｎ ｗｉｔｈｓｔｕｄｅｎｔｓ ｉｎ
ｓｐｅｃ㼕ａｌ 㼚㼑㼑㼐㼟㻌
ｓｃｈｏｏｌ.

Green baton

Ｌｅａｒｎｉｎｇ ｔｈｅｉｍｐｏｒｔａｎｃｅ ｏｆａｎｔｉ-ｄｉｓａｓｔｅｒ
ｆａｃｉｌｉｔｉｅｓ.

㻭㼓㼑㼐 ｐｅｒｓｏｎ
ｅｘｐｅｒｉｅｎｃｅ㼜ｒｏｇｒａｍ.

Ｖｉｓｉｔｉｎｇ Ｍａｌａｙｓｉａ
ａｎｄ wｏｒｋｉｎｇ
ｗｉｔｈ ｆｏｒｅｉｇｎ
ｓｔｕｄｅｎｔｓ.

School road cleaning PET bottle caps

Community involvement

6

1-G Group 3

Takita Sae Waki Chihiro Kimura Hitomi Nakazono Yuna Hoya Keito Aso Takahumi

With a 6-week-long study trip
to Australia, we learn to live in another culture,experience unusual things, and understandthat we are all the same human beings.

Cross Cultural
Cross-Cultural
CrossCommunication

Learn about
Japanese Culture

We learn about Japanese culture because
we believe that it is important to know ourown before we learn about others.

Present Ourselvesto the World

It is very difficult to communicate well with people
from different backgrounds. We learn how we cando that by doing many presentations, speeches,and debates.

Global Leaders from Japan!

Through our ELA classes every day, we learn, think,and talk about our world.

Learn about theWorld

Reitaku High School
The International Leadership Course7Game Arabian pot

We are planning to continue exchanging with e-mail and skype in the future.
Those who can cooperate, please call out.
Thank you.

Commemorative photography                                          Souvenirs presented

Welcome song ”Oh Happy day”      Impressions

Japanese drum performance                                                  Sound table tennis experience                          Walking guide experience for the visually impaired

Direct contact with international students at Chiba University            Photo shoot with the Rio Paralympic Marathon Medalist                                                 

Traffic congestion

Increasing of land price

Changes its appearance

Pollution

Disagreement with fisherman

Increase of
emproyment

Economic
effectIncrease of
Tourists

・Population:1600000
・Independent from Britain in 1957
・Industrialization policy andtourism development have caused
big economic growth

PENANG ISLAND“George town” is located on the Penang island
and registered as a world heritage site. There
are many tourist spots and resorts placed in thiscity. There are some problems here. We will talkabout these issues and think of solutions.

ABOUT

Narita Kokusai High school
Kawabata Yui,Naitou Masayuki,Harada Yukako,Suzuya Akihiro

How would the ideal tourism development look?

”Tourism
Tourism featuring Traditional Architecture in George town
town”

What PHT have been doing

・Succeeded with
tourism that makes
use of nature
Ex. Canoe tour

Example of Iriomote island

Residents Architecture Food People Nature＝Use “Things that have been there for many years” wisely to provide good service to tourists

How would the ideal tourism development look?
＝Making
Making everyone satisfied without hurting towns and people

Companies Government Fishermen
Tourists Civilians… and more!!

                                                                                                            

Expected result(1) While deepening understanding of different cultures, we can respect others.and enhance communication skills to collaborate.
(2) By utilizing ICT tools which are presently highly versatile, and verifying the effect, consolidation of their examples can be a guide for our domestic weak-eyed education etc.

The reason
When students with information disability participate in society and get more information and send out it from themselves, ICT is an effective means.
And, to send their own thoughts actively for others with different cultures is based on "self-understanding" "regional understanding" as well as "challenging spirit" and"toughness to overcome difficulty". In order to acquire the ability to respond to a keen society by globalization rapidly, it is necessary to utilize highly convenient ICT,
accumulate highly versatile practical examples such as educational content and support method.

We examine the contents of learning students with visual impairments experience foreign cultures and deepen exchanges with utilizing ICT and so on. We research the ways
to send actively and to be necessary for their improving language and communication skills.

Research theme：

Curriculum according to the educational needs for each student

Research subject：

2016－2017 About our research  Chiba Prefectural School for the visually impaired

8

How it is mainly used;platelet

supply both red blood cells

same time.

and blood plasma at thethan 40kg.

40 kg.

We have the “World Blood Donor Day” on every June 14th. The first

3. World Blood Donor Day

serve blood only by “blood donation animals.”
There are 3 blood types for cats, 13 for dogs, so it is desirable formany pet owners to have their pets donate. .

“blood donor animals.
“blood donation animals”
means the animals who are
owned by veterinary clinics, and“blood donor animals” means
people’s pets..
The former donate blood as per clinic needs, and the latter donate
blood periodically.
But there are 13 kinds of blood types for dogs, so it is difficult to

However, there are no “public blood donating banks,” so to serve
fresh blood we need “blood
donation animals” andWhat about our pets? Can I donate blood for my dog? The answer
is “No”. But other dogs can.

2. Blood donation for pets

* If you were over 65, you can donate only you’ve donated when you were at the age of 60 to 64.

yourdepends

weight.

It

to 54

on

More

Female: More

Male:

to

Female:18

69*

Male:18

than 45kg.

More than 50kg.

18 to 69*

Female: More thanMale: More than

Weigh

Female:18 to 69*

Male:17 to 69*

45kg.

16 to 64*Agecan only keep the amount of blood that you will use in 3 days.

just for 3 days. Whole blood donation maintains for 21 days, but you

and you need to get a medical checkup for a day so you can use them

Blood plasma maintains for a year, but platelets only last for 4 days,

malfunctions.

toclotting factors.

tendency to bleed

due

bleeding, and the need to

to

bleed

due

or the tendency toofCorrection of thelacklost platelets;

theTo stop bleedingforcomponents due to massive

How it is mainly

used;

of

Replacement

all

30

used;

to

How it is mainly

20

100 minutes.

About

Time;

minutes.

Time; About 40 toTime; About 50 topurpose100 minutes.

Applied

400mL

Whole blood donation

200mL

Platelet

Kinds

Blood plasma

Blood component donation

System

I think some people are not aware of blood donation. These are theparticular conditions for donating blood in Japan.

1. What is “blood donation”?

Japanese blood donating character “Kennketsu-chan”

birthrate and longevity.

blood“Hellenic

Thank you!

think about it and do something you can. How about me? I will
donate other things (such as money, clothes, my heart, etc) as wellas donating blood and trying to help many lives.

Did you know about this? I think many people didn’t know andwere surprised a lot. I didn’t know either before I searched about it.
But we can change everything by what to do from now on. Please

6. In the end<hourituno-madoguti zeirisi nyusu>http://houritsu¥ madoguchi.
com/ zeirishi-news/502/

int<Cyber Agent>http://headlines.yahoo.co.jp /hl?a=20141006-00050137 -yom-< The Japanese Red Cross Society>http://www.jrc.or.jp/activity/
blood/news/160601_004305.html< ©PR TIMES INC. ALL RIGHTS RESERVED. > http://adgang.jp/2014/04/59243.html

5. References<The Japanese Red Cross Society>http://www.jrc.or.jp/rule/<The Japanese Red Cross Society blood business headquarters><JARMeC information>http://www.jarmec.jp/bloodbank.html

In Poland, when you donate 18L of blood total, you don’t have to
pay taxes forever!

high schools.
When you donated blood inGermany,
500mL
isfundamental. It is a little much for Japanese.

superhero!”In Pujiang country, Zhejiang
China, if your parents donated 4liters of blood total, you will be
guaranteed to do well at theentrance ceremony for privatea spider thread, is a medical
tube and the arm is connected toit with a blood bag. The poster
says “You can be someone’s

Association of Blood Donors” in Greece. The arm drawn in the poster
is of a certain hero. His weapon,

4. Japanese and other countries

How about other countries? This is a poster made by theand more unified.

The theme of the day this year is “Blood connects us all.” Thismeans to thank all the donors. It also means that blood donors andreceivers are sharing and connecting. The slogan is “Share life, give
blood.” This means that blood donations will make people kinder

donation is important to save other people’s lives.

how

and

make people
aroundtheworld to know

donorsannually will be lacking. There are manyreasons for this situation, such as low

is said that the amount of blood that 850
thousand injured people will needin 2004. Thisis the day to
thank
blood

Blood donation is a far more important
thing than people realize.
These days, the Japanese health careindustry has a serious lack of blood. It

one was held

Japanese Blood Donation ~Until Now and Into the Future～

Interest in
Volunteer Activities

Learning and Interactingwith People from Different
Countries and Cultures
Expand Our World View

In School Panel Exhibition supported by UNICEF

Volunteer Interpreting in Primary School

Participation in UNICEF Street fund-raising

GlobalPerspective

Improvement ofCommunication
SkillsAustralia Tour (2nd Grade ESC)Interacting Program with Students in JICA (3rd Grade ESC)

Field Study in Temple University Japan

Joint Study Program with AIESC

Environmental Protection
Energy Resource Issues
Human Rights
World Heritage Protection
Food and Water Supply Problems
Fair Trade

Skype sessions with Korean students
UNESCO Study in Team Teaching Lessons
Netiquette Lecture with DeNA

Career Learning Program at Bloomberg

Other Activities

Interacting Tour in Malaysia, Taiwan and Australia

Philippine Tour (1st Grade ESC)

Students-Centered
Activities

Posters to inform of Achievement Results

Calling for Students’ Participation on Volunteer Activities

Cultural Exchange Activities

Starting to Grow
New Values

Desire to Learn
more

Connection
with Local
Communities
Need forCooperation and
Collaboration

Desire to know
others more

Volunteer Activities
Volunteer Activities
Sending Used Clothes to Mongolia

Participation in Greeting Campaign

Collecting ECO Caps

UNESCO Class in English Studies Course

Interact Club supported by Rotary International

To know not just the world and connect with the world,but expand our values through international exchanges

Presented by Miyu Kashiwabara & Taehyun Jang

Ichihara Chuo High School

Education for Sustainable Development

Activity Report9

For realization

discrimination
Communication

EconomyEach floor

5 malls

Same conditionas Japanese・The contents of job

・Promotion tests

・Treatment④Interview forJapanese companies“TONJIRU”(Pork miso soup)

How about our school?

So

A wish to eat together

It is difficult for us to make working places better than now

EnglishJapanese

Language
Facility

Malaysia
Malay, Indian,ChineseJapan③AEON in Malaysia

Ethnic group Japanese

But

Loneliness

Geonsil Lee, ”Job stress and mental health among high-skilled foreign workers(HFWs) in Japan: Comparative analysis between HFWs and Japanese workers”in
Stress Science Research30(2015)

CultureLanguage

Foreign worker’s stress

１．Taboos →２．Menus →３．A questionnaires →４．Supporters→５．Ingredients→６．The day of the marathon race

Problems for Muslims in our school?

④Practice・Understanding differences
・Pleasant workplace

To introduce jobs for foreigners
Ａ：Communication by Japanese→Classification of goods
Ｂ：Hiragana, Katakana→Cleaning
Ｃ：Kanji→The hospitality industry②”Hello Work” in Narita③Summary ・Jobs without the use of Japanese

Two pieces of advice
1.Information gathering
2.fieldwork①Interim presentation②Our activities

Ministry of Health, Labour and Welfare

Trends in the number of foreign workers

Aikawa Misa
Ito Nozomi
Umeda Maika
Onaka Chinatsu

Foreigners have these concerns in workplace

Japanese live together with foreigners

The number of foreigners has been increasing① Assignment

Narita KokusaiHigh School

Koji
spore

Soy

Kurozu (Kagoshima)
Ingredients of Kurozu are only steamed
rices,malted rices andgroundwater.How to make it is to put
them into a big pot and to ferment.

The obese
prevention

The preventionof the high bloodpressure

Improvement of
the bloodstream

Relieving fatigue

Contain mineralmatter and a dietary
fiberContain many
vitamins. (B1, B2, B6,
B12, E K niacin, folicacid, pantothenic
acid,)

Gyosyou : The food which let a fish ferment. Japanese threemajor Gyosyou is Kagawa”Ikanago soy sauce” andIshikawa”ishiru”,Akita”syotturu”. To use limited resources
effectively,producers also uses skins and entrails.Besides…
Besides,fish sause in Hokkaido isn't fishy.

Natto (Ibaraki)
It is Ibaraki to be famous for natto. However,Fukushima is it in consumption from Ibaraki.
Natto is fermented soybeans with natto
bacteria.Soybeans of natto in Ibaraki prefecture
are smaller than others.

Promotion of thecalcium
absorption

Decrease ininternal organs
fat

The cancer
prevention

Be strong capillariesof the heart andbrain

Eight kinds ofessential amino acids
are included

Nrazuke :Pickles seasoned with sake lees (Nara)
Narazuke has a very long history continuing fromNara period.The main vegetable of it is oriental
melons.Nowadays not only oriental melons,but also
various vegetables such as melons,eggplants andlotus roots are used with Narazuke.

❏ Vinegar❏ Miso Soup

Representative food using the malted rice and the effect

Sagohachi-Zuke(Local dishes of Akita,Yamagata andFukushima)
Sagohachi-Zuke are Japanese style ofpickles.You can enjoy a salty
taste,sweetness and freshness at atime.

Aspergillus oryzae

Kanzuri (Nigata)
Kanzuri is spice in the snowy
region.How to make it is to put chles
into snow and to mature about three
years.

Spore diameter 0.005mm
The source:
http://gakusyu.shizuoka-c.ed.jp/

Fucyumiso (Hiroshima)
Fuchu-miso is sweet rice miso.Ricemiso is a kind of miso used more
malted rices than others.

Famous fermented food

Rice

BarleySteamed rice,barley,and
y,and soy which are bred as Koji spores.

[Koji ] rice molt

【Conclusion】 Japanese fermented food level is famed in the world.

3. Nutritional value increases

2. Food's flavor is improved

Food which processed by characteristics of microbe.
1. Excellent preservation【Merit】

・Koji mold was produced in Japan. (Scientific name : Aspergillus oryzae)

・Japanese climate is suitable for fermentation.

【Definition】【Reason】【Introduction】Japan is said that the most a powerhouse of fermented food in the world.

SUMMARY

YOSHIZAWA Rei, NISHIMOTO Yuuri, NEGISHI Rei, ARAI Yuzuki
Chiba Prefectural Yakuendai High School

Japanese Fermented Foods

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～ THE DIFFERENCE BETWEEN JAPAN AND OVERSEAS ～LEARN FROM YOKAI
Ryoma Noda, Hana Suzuki

Ruri Itoh, Ibuki Ueda,Mikako Ohmura,

1-G group 1

11

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Result!!

ⅠClassification of the language

high

WKDWZHFDQQRWLQYHVWLJDWHWKHOLQNZLWKRWKHUZRUGLVXVHGDFFLGHQWDOO\KDSSHQVDQGLWLVVDLG\HDUVWKHSKHQRPHQRQWKDWWKHVDPH

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Ⅱ．Japanese language history,QFRUSRUDWLQJODQJXDJH：$LQX、(VNLPRHWF④

  →Start learning Asian languages

KWWSRZORZORZOQHW6//4<FRUQHUVROLORTX\KWPO

→Make contact with other Asian schools regularly③Communicate with Asian countries

日本人のルーツ ,,, 日本語の起源と結論     →Collect info and feel neighboring countries close to us.

②Realize that we are a member of Asia

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アリス館 

①Know more about our neighboring countries with take filters away

<What can we do from now? >日本語系統論と内的再構

「日本語のルーツをさぐったら…」 あべせいやReference documents!!

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high. (Especially Chinese)・ Learn 3rd language from juniorlanguage, can be a filter to see theworld.

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7KHODQJXDJHWKDWFKDQJHVLWVPHDQLQJE\・

・ Interact with Asian countries

・Using only English, our 2nd(from 3rd grader from 2020~)

・ Learn English more・The population and economy are
growing rapidly in Asian countries.

Goal:

Reason:<Future> We can see the world better when we understand other languages.

ᴾ ᴾ ᴾ ᴾ ᴾ ᶒᶆᶃᴾᶕᶍᶐᶑᶒᴾᶑᶁᶍᶐᶃᴾᶇᶌᴾᵟᶑᶇᵿᶌᴾᶁᶍᶓᶌᶒᶐᶇᶃᶑᴿᴾ

week (my high school)-DSDQHVHDVVXPHG.RUHDQDVDQDQFHVWRU &RQVLGHULQJ,QIOHFWHGODQJXDJH：*UHHN/DWLQHWF

5thschool$JJOXWLQDWLYHODQJXDJH

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FKHFNHG ZKHQ -DSDQHVH ZDV VHSDUDWHG IURP RWKHU

students

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from・ Only 5 English classes in a

American（）,QWHUURJDWLYHLVXVHGDWWKHHQGRIWKHVHQWHQFHLQ

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・Interact with Australian and

grade・ Learn

School system:

Research Content!!

（）7RDYRLGWKDWWZRFRQVRQDQWVFRPHLQSUHIL[<Current> We learn English to see the world.

Chiba Higashi Senior High School

Learning only English Will Become Obsolete

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Ⅲ．Characteristic of Altai

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 Introduction!!

Point !!

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12・ We mustn’t do all things by ourselves. We should keep paces with themselves.

・ We have to be careful for the differences of situation from country to country

4. The things that we must be careful in help andinvestment in Africa

・ maintaining infrastructure and system for investment
・ human resource developmentex) Mozal in Mozambique・ making employments→Projects one by one with JICA.

3. How can companies reconcile both investment and the preparation for that?

complete all of them.

Although it is necessary for Africa, but it will a long time to

Many organizations are making efforts of improving them.

ⅲ）Educationⅱ）Increasing the self-sufficiency rate for staple foodⅰ）Traffic infrastructure

What is needed for investment?

・ 20 out of 54 countries is independent in economy

is over that of help

・ The sum of investment in Africa from over the world

2. We should invest money in Africa

2100
3.6billion

・ About 40% of African is under 15 years old

2050

1.7billion

Now

1.2billion

・The population of Africa is increasing.

1. Africa’s potential

Yuriko Kamiyama

Chiba Higashi Senior High School

Future international cooperation  Green route

Blue route

Red route

Route

DisasterPreventionof Sakuraa top of the slope.

as long as you climb to

You can arrive safely

in traffic.

You don’t get stuck

the nearest way.

This route isHouse

is narrowalong this road. Because the roadYou can’t see very far ahead

traffic accidents on the way.

There may be someslide while climbing the slope.

You may be involved in the Land

DemeritBlue route↓        Green route↓

Merit

Red route↓       

Civic gymnasium

Sakura Junior High School

Chiba prefectural Sakura Minami High School

13

ᴾ

-

Traditional Japanese Ryokan

Experience onsen

Osaka Castle, Doton bori, Kyoto Gion…

Length/duration; 3-7days

-

-

-

-

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Respect for traditional culture, history

Understand more about Japan

Teamwork---

Use English for communication and creating materials

Chance to put academic studies into use--

Learn to work with teammates from different cultures and backgrounds

Use internet to connect globally--⇒No borders/division working together, all countries, backgrounds, genders equally

Learn about ourselves-

Theme “Connect to future…”⇓

The importance of Compromise/Balance-⇒create environment where everyone can speak up⇒learn more about each other

Understand different aspects, cultures, values we share-

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Interest in modern buildings

Length/duration; 2 weeks or more

Osaka Kaiyukan, HEPFIVE, Shopping malls

Cheap business hotel“&RQYHQWLRQRQWKH5LJKWVRIWKH&KLOG”

・ ,Q WKH  WKH -DSDQHVH *RYHUQPHQW UDWLI\ODZZDVFRQVWLWXWLRQDOUHVXOWZDVFRQVWLWXWLRQDOEHFDXVHDOOMXGJHVMXGJHGWKH

WKH &LYLO &RGH ZDV XQFRQVWLWXWLRQDO ZDV KHOG DQG WKH・,QWKH7KHILUVWWULDOWRSOHDGWKDW$UWLFOHRI

5LJKWVFRQILUPHG“&RQYHQWLRQRQWKH5LJKWVRIWKH&KLOG”

・,QWKHWKHXQLWHGQDWLRQV&RPPLVVLRQRQ+XPDQ<The process to change the Civil Code><Reference date>
http://www.soumu.go.jp/
http://www3.nhk.or.jp/news/mynumber/･Mina Portal is going to be used.

① Citizen’s total numbering system
The government give people numbers which is different
each other and control people by getting individual
information.
② Green Card
It is “small saving user’s card” in Japan.
③ Basic Resident Resister Card
It helps administrative affairs to be efficient andimproves convenience of using IC card which is exactly
protected and enables us to be delivered easily in town welive in.
・These three systems had many criticisms.
And My number system has criticisms about security.

･Practical use of My number
1, to unify the health insurance
2, to use the services of delivering at a convenience store
3, to use as a staff card
4, to use as an identification with oneself on the Internet
They are the ways government expected.
There are many ways for an individual ,local government
body and a company.

<Contents of research>･Merits of My number
Realization of a fair society
Administration becomes efficiently.
Procedure for administration become simple.

･The systems which are similar to My number are the
Citizen’s total numbering system
Green card in Japan and Basic Resident Register Card.

My number<Introduction>･The my number systems a. number of 12 digits Every
Japanese has it.
It is used for social security, tax and the disastercountermeasure.

2, The “My number” system and other systems which are similar to My number

1, The Discrimination for Illegitimate Children in The Eyes of The Law 7DNXPL 6DWR 6DFKL\R ,LGD $VDPL 6DWR 

6KLEDXUD ,QVWLWXWH RI 7HFKQRORJ\ .DVKLZD +LJK 6FKRRO     7+(75$16,7,212)7+(/$:6<67(06,1-$3$1!!

Japan = High Technology!

What we have learned throughout the TTBiz program;Traditional Japanese food

Historical structures from past-Ex) Kyoto Castle,-

Korea)ᴾ

Traditional construction, castles

Skyscrapers in Tokyo and Osakaᵟᶑᶇᵿᴾ(High school students in Philippine, China, andᵨᵿᶎᵿᶌ (High school students in Japan)ᵢᶇᶄᶄᶃᶐᶃᶌᶒᴾᵣᶖᶎᶃᶁᶒᵿᶒᶇᶍᶌᶑᴿᴾ

⇒Present each plan through video chat

⇒Conduct meetings over the internet using Skype, Facebook, iMessage, Google slides/docs etc…

Students from Japan and other countries in Asia work together as a group to create a travel planᶜᵡᶍᶌᶌᶃᶁᶒᴾᶕᶇᶒᶆᴾᶕᶍᶐᶊᶂᵊᴾᶁᶍᶌᶌᶃᶁᶒᴾᶒᶍᴾᶄᶓᶒᶓᶐᶃᶜᴾᵲᶐᵿᶔᶃᶊᴾᵿᶌᶂᴾᵲᶍᶓᶐᶇᶑᶋᴾᵠᶓᶑᶇᶌᶃᶑᶑᴾᵮᶐᶍᶅᶐᵿᶋᴾᵨᶓᶌᶇᶍᶐᴾᵟᶁᶆᶇᶃᶔᶃᶋᶃᶌᶒᴾ ᴾ

ᵲᵲᵠᶇᶘᴾᵮᶐᶍᶅᶐᵿᶋᴾ

14

We also continue toexchange letters with
Fukushima's high school
students.

I will not forget theearthquake! We holdmeetings on the theme ofdisaster prevention
education.

In the Candle Night, where
the art club is focused onenergy saving. The scienceclub participates in an ecoproject to plant sunflowers
around the Otsu River andimprove water quality.

In home economics,
we invite Japanese
confectionery chef.
In art class, we leaned
botanical art with
Kamagaya city

B Japanese

B Japanese

Mao Hasebe

2%

0%
0%
1%
0%

Intellectual
Friendly
Shy / Modest
Traditional/Cultivated→Then I suggest…

15%

0%

PoliteIt also leads to volunteer
activities.

DisagreeDon’t know

6%

19%

15%

11%

11%

15%

3. Spread accurate knowledge about Japan

2. Preserve our politeness1. Have more confidence in ourselves

8%

1%

7%

5%

0%

Creative

Disagree very much

68%

59%

70%

73%

58%

67%

Agree

(Quote from the Foreign Minister, 2009)

24%

6%

7%

14%

24%

12%

Agree very much

Q. How much do you agree these opinions about Japanese qualities? (Multiple answers allowed)

Q3. What do you know about Japan?

A AustralianQ2. What do you think Japanese people are like?

A Australian

Q1. What do you think Japan is like?

I will propose how Japanese behave in a global society.

What kind of role should Japan take for the future?

Chiba Higashi Senior High School

What do you think Japan is like?

With the cooperation of
vocational schools and city of
Kamagaya, All of our students
experienced helping
handicapped people， nursing
and wheelchairs．

Internship andemployment
countermeasure courses, aswell as departmental
activities are also conductedin collaboration with thecommunity. There are alsomeasures for employment
examination by the fire
department and police
station.

I am not good at talking with people, I am also
not good at English, but I want to continue
thinking about the world and what I can do. I
want to increase my knowledge and work hardon studying English, correct the shy strangers if
it becomes an effective tool.
(From student composition)

We learned how import to think and move arethrough the ESD activities. At first, know thethings. Do not miss the feeling that how theworld is unequal, and talk about it with friends
and family. Do not take it as others, then thenext action was born.
We treat the water and do volunteer activities
not because we are Instructed by theteachers,but it is one of the things that I can dofor the world and it is important activity .
And we knew that many adults do something
and many people think that the current situationin the world is not good. Still there are
difficulties to solve the problems of global
disparity and the environmental problems.

At the Kamagaya festival, we organized a cosplay event by the animationclub · science club, a booth opening, a Yosakoi Soran volunteer by the tea
ceremony club, and an animal key chain production booth by the art club. Also,
many students participated as volunteer staff.

After graduating from highschool, there are students who
study abroad.

· School activities
Club activities, lessons,course activities· UNESCO activities
Discussion / presentation·A new regional
exchange began.

· We are praised"Thank you always""It's a nice school."Student council collects PET
bottle caps and public relationscommittee members, collectpostage postcards. The tennis
club participated in the programfor [ The smile of the world ]of
JICA, and sent rackets andballs to the high school in
Africa . In addition, ‘Clean-road’campaign by more than 200
students, teachers andparents．

④Finally, change
myself.

I think andmove①First,In "International student teacher", international students from seven countries
talked about their country, and they got national costumes to wear and deepened
their exchanges. Also, we interacted with students of Trident High School in New
Zealand, a sister city in Kamagaya city. We deepened exchanges in English
lessons, calligraphy, and physical education.

· My mother told me totake part in a volunteer.
· World news began toappear in aconversation with afriend②friends
andfamilymovesociety③
Changes～What we can do to make a sustainable society～

Kamigaya Nishi High School

15

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16
考察‒



１
下のグラフは、上から、ばねの長さを 0.4m, 0.6m, 0.8m としたときのマイクが受信した音の波形をあらわしたものである。
ばねの長さが長くなるほど、ばねを伝わる音の速さは遅くなることがわかった。

結果‒

予備実験として、音源からマイクまでの距離を 0.2m, 0.4m, 0.6m, 0.8m の 4種類で変化させ、発生した音を受信するまでの時間とその音量を測定した。
そのときのグラフと結果１のグラフを比べて、発生した音は直接結果には影響しないことがわかった。

物理基礎 高等学校理科用 数研出版

参考文献‒

このことからばねの長さが長くなるほど、ばねを伝わる音の速さは遅くなること、ばねでは弦を伝わる波の速さの式は成り立たないことから、糸とばねの性
質は大きく異なることがわかった。

まとめ‒

１
振幅が大きくなっているところ（以下、これを山と呼ぶ）が、糸電話で同じ実験をすれば、糸の長さが長くなればなるほど山が発生するまでの時間は短くなるはずである（張力が大きくなり、線密度が小さくなるため）。しかし、結果１のグラフから分かるように張力が大きくなるほど山の発生が遅くなっていることが分かった。
このことからばねの長さが長くなるほど、ばねを伝わる音の速さは遅くなることがわかった。
２
弦を伝わる波の速さの理論値を求める公式は√7ρであり、これにあてはめて求めた速さの値は以下の通りである。
 PV P PV P PV P PV P 
実験から求めた速さはPV P PV P PV P PV P 
もし√7ρの公式がばねの場合でも成り立っているのであれば、結果２のグラ
フは原点を通る傾き１のグラフになるはずである。しかし結果より傾きはほぼ１であるが、原点を通るグラフにはならなかったため、ばねではこの公式は成り立たないことがわかった。

1

Research

stink

bugs

Six out ofphototaxis.

Result















seven

stink

bugs

had

Method・I put several stink bugs in the insect cage.
・I inspected which stink bugs were attracted
to the LED black light.
・Then I counted how many stink bugs havecrossed the center line toward the LEDblack light.


Experimentphototaxis

・カメムシはなぜ群れる？離合集散の生態学 藤崎憲冶 
京都大学学術出版会
・カメムシ観察辞典 小田英智 偕成社
・果樹カメムシおもしろ生態とかしこい防ぎ方 堤隆文
 農山漁村文化協会
・図説カメムシの卵と幼虫―形態と生態 小林尚 養賢堂5HIHUHQWV・I couldn’t research on many stink bugs
because adult stink bugs died after theylaid eggs. Therefore I was breading some
eggs.
・The eggs hatched and some of them became
adults. I need more adult stink bugs to do
more experiments.
・ I have to research which environment
bright or dark give phototaxis to stinkbugs.

Next experiments

Stink bugs lose phototaxis if they are left in abright environment for a long time.
Bright and dark environments influence thephototaxis of stink bugs.

Consideration

Positive phototaxis   Case B


Case
A






Resultult

Case B:
Raised with 14-hour
light and 10-hour
darkness per day forthree days.

１１ｍｍ～１２ｍｍCase A:
Raised in complete
dark
environment
for three days.

 Plautia crossota stali

Tyabane ao Kamemusi







実験方法
下の写真のように実験装置を組んだ。
紙コップと紙コップの間のばねの長さを 0.2m, 0.4m, 0.6m, 0.8m の 4 種類で変化させて、受信側の紙コップの内部にマイクを設置し、発 生した音を受信するまでの時間とその音量を測定した。
板の上に同じ高さからゴルフボールを落とした時の衝撃音を音源として利用した。
また、マイクで拾われた音はイージーセンサーによってグラフ化された。



Experiment 2 Light and dark environment
cause changing stink bugs phototaxis
MethodI researched the difference in phototaxis ofstink bug in bright and dark environments.






１３ｍｍ～１８ｍｍ

 Halyomorpha halys

Kusagi Kamemusi

Insects for experiments
change in the phototaxis of stink bug. I decided to perform an experiment.

weeks had no reaction to the LED black light. I think the different light environment causedcaught recently had a nice reaction to the LED black light. The stink bugs breaded for the two When I used a LED black light, stink bugs gathered around it. I found that the stink bugs

Introduction







２
下のグラフは横軸に√7ρから求めた速さの値、縦軸にばねを通る音が一往復するのにかかった時間から求めた速さの値をとったものである。

猫本 凜

高校  年 大森 華希  &KLED3UHIHFWXUDO6DNXUD+LJK6FKRRO.DVDKDUD<XLFKLURX

7KH'DUNQHVV6HQVLWL]HVWKH3KRWRWD[LV6HQVLWLYHQHVVRI7KH6WLQN%XJ 

研究対象と方法‒

背景
私たちは、はじめ、糸電話の研究をしていた。その結果、糸電話の線密度が大きくなればなるほど、長さが短くなればなるほど、振幅が大きくなることが分かった。糸電話についてさらに研究を重ねていくと、糸電話の糸の部分をばねに変えたばね電話というものがあり、それは発した音がエコーして聞こえることを知った。

目的 
ばね電話でも、糸電話と同様に、張力が大きいと音の速さは速くなるのか、
また、ばね電話の場合でも√T/ρの公式は成り立つのか調べようと思った。

序論‒

ばね電話

 

17

Microscope slide

Left graph is from solid surface (x-axis: “A”, y-axis: Bouncing height)
Right graph is from liquid surface (x-axis: “B”, y-axis: Rising height of surface)

Diameter of the pipette:ͳǤͲͷ
Diameter of the burette:ʹǤͳͲ
The thickness of the slide:ͳǤͲ͵
Contact angle of a water drop on a surface:ͳͶͻǤͺ±ͲǤͺ Result1. Change a microscope slide to an aquarium and graduated burette topipette. Put water in the aquarium.
2. Place a high-speed camera in front of the ruler and the water surface.
3. Measure the length of the surface to end of the burette, and start taking
a video.
4. Add a water drop and repeat 3 times.
5. Measure the height of the bounce from the camera.
6. Change “B” and do 3~5.

D

-BETWEEN BOUNCING AND SPLASHING: WATER DROPS ON A SOLID
SURFACE-BOJAN DURICKOVIC AND KATHLEEN VARLAND-平成２６年度生徒課題研究論文集

References-When the Weber number is high, which means surface tension is low orkinetic energy is high, the droplets will splash on the solid surface, andbounce on liquid surface. The reason why is because, the droplet won’t
contract when it hit the surface if the surface tension is low andconsequently splashes.
-C should have a straight line, but various causes made it parabola.

E (x-axis: Rising height of surface, y-axis: Weber number, formula:, Ͳ＜ ͳͷ)E

C (x-axis: “A”, y-axis: Weber number, formula:)shows that when the Weber number is ሺൌ͹ͷሻ, bounce changes to splash.
)
D (x-axis: “B”, y-axis: Weber number, formula:shows that when the Weber number is ሺൌͳ͵ͷሻ, rise change to bounce.

C

The weber number is a measure of the ratio of the kinetic energy and surface tension
and is defined as,Ȁ(ρ fluid density,  velocity at impact(m/s),  drop diameter
before impact,  surface tension). Since the most values are constant in all trials, I
used the relative Weber number
.

Stand

Graduated Burette~Considering results by making graphs of Weber number~-The graph can be represented by following formula.
(40≦≦ͳ͵Ͳሻ
-Correlation coefficient was ͲǤͻ͹ǤǦWhenൌͻͲǡͳͲͲǡͳͲͷǡsome bounce occurred. After ൌͳ͵ͷ the all drop bounced.
- By considering the graph, there are consistencies between the rise and the height.

~Liquid drop with liquid surface~

1 meter ruler

Treat a microscope with soot from a burning candle.
Set up equipment like above.
Place a high-speed camera in front of the ruler and the slide.
Measure the length of “A”, and start taking a video
Add a water drop and wipe water from the slide. Repeat these 3 times.
Measure the height of the bounce from the camera.
Change “A” and do 4~6.

~Liquid drop with liquid surface~

1.
2.
3.
4.
5.
6.
7.

A

~Liquid drop with a solid surface~

Method~Liquid drop with a solid surface~

The impact of a liquid drop with various surfaces is a phenomenon
that can easily watch in daily lives, such as in shower and with rain falling.
The time scale of the process is only a fraction of a second, so we can’t watch
all the process by naked eyes. I became interested in revealing the whole
picture of dropping and started experiments by using a solid, liquid surface,and a high-speed camera. I released a drop of water adjusting the heightand diameter. In a result, when a drop of water hit various surface, itbounced in the lower height, and splashed in the higher height. There areclosely related factors causing this outcome; Surface tension and inertial
force.

Shojun Masuda-Splash occurred when x=7.3(one time)、7.8（two times）and after x=8.2, all water drop
splashed.
-When “legs” occurred, bouncing became unstable and was likely to splash.
-By considering the graph, there are no consistencies between the bouncing and theheight.

Discussion

Introduction

Water drops on various surfaces

‒



‒

‒

‒

‒

・/(' に流れる電荷について 電源を１．５9 乾電池で充電したスーパーキャパシタ（５．５9、１．０)）に変え、トロイダルコイルの抵抗側から  の位置に正極端子を繋いだ。

 トロイダルコイルの巻数
・明るさ
トロイダルコイルのちょうど真ん中に正極端子を繋ぎ、コイルの巻数と明るさの関係を調べた。
明るさは /(' に流れる電流の大きさで判断した。

L：インダクタンス

N２ｒ２

D

μr：コア素材の比透磁率
N：巻数・わかる！電子工作の基本１００ 遠藤敏夫 著
・物理 数研出版

参考文献‒

 ジュールシーフについては、コイルのコミッタ方向へのインダクタンスが大きくなるほどエネルギーを多く引き出せる。つまり、コイルの巻数（とくに正極からコミッタ方向への巻数）を増やせばいい。また、トランジスタの増幅作用をうまく引き出すような電圧がベースにかかるようにするというような方法も有効であった。

まとめ‒に比例してインダクタンス つまり自己誘導の起電力 が大きくなる。
  よってコイルのインダクタンスが大きくなると、それに比例して /(' に流れる電流が大きい（つまり、/(' が明るく光る）と考えられる。
  また、コイルの巻数が多いほど /(' に流れる電荷が多いことが分かった。
  つまり、インダクタンスが大きいほど、/(' が明るく長く光ると考えられる。
 トロイダルコイルに正極をつなぐ位置抵抗から４周の時（スーパーキャパシタの時は、抵抗から５周の時）、最も/(' が明るく光った。これは、/(' が光る範囲内で最も正極から /(' までの距離が遠く（巻数が多く）、コミッタ方向へのインダクタンスが大きくなるからだと考えられる。
 また、抵抗から１０周（）の時も /(' が明るく光った。これは『トランジスタ 6& は 9E（ベース電圧）が０．６６9 の時最も好ましい状態で増幅される』と言うことが関係していると考えられる。

ｒ：コイル自体の半径
D：トロイダルコア全体の長径  ここで、巻数以外の条件は一定であり、コイルの巻数を増やすとその二乗    L  or-7
 トロイダルコイルの巻数
μo：自由空間の透磁率 4  10 Hm
トロイダルコイルのインダクタンスの式。

考察‒・/(' に流れる電荷について 電源を充電したスーパーキャパシタに変え、正極をつなぐ位置によって /('に流れる電荷の量がどう変わるか調べた。
 ３０回巻きのトロイダルコイルに対して、抵抗側から５周、１０周、１５周、２０周の位置にスーパーキャパシタの正極に繋いだ。
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‒

‒

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‒

① トランジスタの % ベース に少量の電流が徐々に流れる。
② トランジスタが 21 になるので、&（コミッタ）にも電流が流れる。ここではトランジスタの増幅作用により、% に流れる電流よりも & に流れる電流のほうが大きい。
③ コイルに流れる電流が急激に大きくなるので、②の電流の向きと逆に逆起電力が発生する。
④ ①の % に流れる電流を後押しし、さらに②の & に流れる電流が増幅される。
そしてさらに、③の逆起電力も大きくなる。このように、①～③が繰り返
され & に流れる電流が大きくなる。
⑤ やがて、& に流れる電流が飽和状態に達し、逆起電力が発生しなくなる。
% 方向への電圧が減少するので、% に流れる電流が減少し始める。
⑥ ここでトランジスタの増幅作用により、& に流れる電流が急激に減少する。
⑦ コイルは⑥の減少を遮ろうと & 方向に大きな電圧（逆起電力）が発生する。
⑧ % 方向へ流れる電流が減り、& に流れる電流が増幅されて減少する。
そして、& 方向への逆起電力が大きくなる。このように⑤～⑦が繰り返され & にかかる電圧が大きくなる。
⑨ & 方向に電流が引っ張られ % に流れる電流が０になる。
⑩ トランジスタが一旦 2)) になり、& 方向にも電流が流れなくなる。
⑪ すべての電圧と電流が /(' にかかる。
⑫ そして、①に戻り、①から⑪を繰り返す。/(' が光るのは一瞬だが、人間の目には見えないスピードで点灯しているので連続点灯しているように見える。

結果‒高校  年 井上 祐輝
 トロイダルコアに正極をつなぐ位置
・明るさ  トロイダルコイルに対して正極をつなぐ位置変えた。



原理‒

目的 どの機械で使ってもある程度のエネルギーを残したまま使用不能になってしまう乾電池から、どうすればより多くのエネルギーを引き出せるのか調べ
る。
背景 /(' を使うと乾電池１個から比較的多量のエネルギーを引き出せることがわかった。そこで、ジュールシーフと呼ばれる乾電池  本で /(' を光らせる
ことができる昇圧回路を用いて効率良くエネルギーを引き出す方法を調べた。

序論‒

ジュールシーフを用いて乾電池からエネルギーを引き出す

18

2

Hole
HandleAcrylic panel

No.1

Tool

No.2

Removed a bottom

Three plastic buckets

Unchanged

No.3

Angular velocity
Record time

the time from beginningof an eddy to reaching thelevel reference line

Record time

the speed of acrylic panel

Angular velocity

4 Method
1: 3.5liters of water or sugared water placed in thebucket.
2: A metronome was set at decided tempo.
3: The bucket No.1 was turned 10 or 20 times to thetempo of metronome.
4: Bucket No.1 and No.2 were lifted up and kept at aconstant height.
5: The eddy generated and was recorded by video
camera.

3

Revolution velocity
Number of revolution

PurposeInvestigate the relationships between condition andangular velocity or record time.



Motivation
 Eddy is defined as circular movement of water
causing a small whirlpool. We often see it in daily life,
but we don’t know about it.

1

Results

Chosei High School

・ Revolution number also
expand record time.

・Record time increase as
the revolution increased.

・Relation with sugar amount
couldn’t be seen.

became・ Record time
longer by revolution
velocity.

・ Relation with sugar
amount couldn’t be seen.

・Angular velocity did notchange by revolution
velocity.

5 Consideration
Angular velocity
・Don’t change by revolution velocity of buckets
・Become faster by increase of revolution number➜,WLVFKDQJHGE\DPRXQWRIJLYHQHQHUJ\Record time
・Become longer by increase of both revolution velocity
 and number➜,WLVFKDQJHGE\FHQWULIXJDOIRUFH

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＜Ex.2 Changing the physical properties＞

1/3π(rad/s)~4π(rad/s) (every 1/3π)
Amount of sugar: 300g～1200g (every 300g)
3.5L

10times＜Ex.1 Changing the revolution of the bucket＞

1/3π(rad/s)~12/3π(rad/s) (every 1/3π）

3.5L
Revolution number: 10,20times・ Revolution velocity didn’taffect the angular velocity.
angular velocity
・20times’is little faster.


4Tomonori.Kataoka Sayaka.Muto

Angular Velocity and Record time of Eddy‿⁗⁦⁚⁡⁖①‒



①Because the inertia of rotation has increased.
②Because there is no arrow moment when 0 degree angle.

‵⁡⁠⁥⁛⁖⁗⁤⁓⁦⁛⁡⁠①‒①Stable when the position of the weight is far.
②It got more stable as approaching 0 degree angle.

⁄⁗⁥⁧⁞⁦①↓Chinese yoyo 0 degree angle.



Make a Chinese yoyo. Changing angle of orange and line of orange.
0°.10°.20°.30°.40°.50°.60°.70°.80°.90°
1cm.2cm.3cm.4cm.5cm6cm.7cm.8cm.9cm I summarized whether it wasstale. Definition of stability, it is assumed that it is stable when it can spin
more than 10 seconds.

How to use Chinese yoyo. Sift up and down right stick direction of the arrowaccelerate and spinning a Chinese yoyo.

‒

⁓⁤⁫‒

←commercial Chinese yoyo

物理のエッセンス力学・波動
物理 高等学校理科用 文部科学省検定済教科書 数研出版
物理学解体新書
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KWWSSK\VQRWHVMSPHFKDQLFVDQJXODUPRPHQWXPFRQVHUYDWLRQ⁄⁗⁘⁗⁤⁗⁠⁕⁗⁥‒

It is most stable when the distance of center of gravity to a weight is thefarthest and the angle of the corn of the Chinese yoyo is 0 degree angle.
Chinese yoyo is fastest when it is over 40 degree angle.
The shape of commercial Chinese yoyo is the most stable and fast⁅⁧

There is almost no change from 30 degrees angle to 40 degree angle,
I conclude that the angle of ideal A is 30 to 40 degrees, considering that it
stabilizes as approaching 0 degrees of experiment ①.
The angle of the umbrella of Commercially available Chinese yoyo on isabout 45 degrees so it is correctConsider the equation of moment of inertia I = mr2.
In this experiment, the applied force is almost constant, the weight is also
constant, there is almost no friction
It is considered to be the length of action line of Chinese yoyo from theformula of conservation law of angular momentum causes cause of speed
change‵⁡⁠⁥⁛⁖⁗⁤⁓⁦⁛⁡⁠②‒

ω converges with 12π/s⁄⁗⁥⁧⁞⁦②‒

Make Chinese yoyo just like Method①. 0°.10°.20°.30°.40°
The distance of center of gravity to a weight is the farthest,9cm
Their weight is all 121g.
I measured the speed after accelerating 30 times, with a camera movie.

‿⁗⁦⁚⁡⁖②‒*KIJUEJQQNITCFG 6QUJKOWPG#MKPQ

Stability of Chinese yoyo

The condition which stabilizes on it a Chinese yoyo was studied.
The angle of the corn of Chinese yoyo on the market is about 40
degrees angle, but it is most stable when the distance of centerof gravity to a weight is the farthest and the angle of the corn of
the Chinese yoyo is 0 degree angle.

※⁠⁦⁤⁡⁖⁧⁕⁦⁛⁡⁠⁁⁔⁜⁗⁕⁦⁛⁨⁗



19

Ohtsuka Kouki(8)Owa Takuji(9)3a Jyubunhai

5 (Time)lowtemperature（10）

normaltemperature（25）

continue to perform an experiment to lower the atmospheric pressure.

We want to try the experiment liquids other than water, for example honey, Saline, and Lubricant, andOutlook4(Fig2)like

The atmospheric pressure is about 1 atm, and humidity and weather ignored.

The temperature is measured at every 5℃ from 10℃ to 25℃.

Conditions

calculate the change in viscosity at 1℃

Then we Measure the time to put 500 ml of water through the instrument, andFirst we make something like a Jyubunhai (Fig2)

This experiment ~atmospheric pressure~is lowered, the temperature of the water will also decrease.

2

Water pressure(s)370
In preliminary experiments, Fig1 shows that the viscosity of 360
water is highly related. because the lower temperature where 350
the340
mass of water per 1 L is larger is slower.
330
320
310
300
Experiment ~atmospheric pressure~
290
First we should find a liquid with less change in viscosity, Because
280
0 1
the we want to lower the atmospheric pressure. But if the pressure

Preliminary experiment ~water pressure~

Fig1

than the water surface before moving. It is used for some dams and kerosene pumps.

The siphon phenomenon is that water continues to flow if a hose is filled with water if it becomes higher

Principle explanation

gravity. We will examine if it is really caused by gravity or atmospheric pressures.

thought it is caused by atmospheric pressure. However, An Australian physicist said it is caused by

In2010, An Australian physicist started discussing about the principle of siphon. Until now, It was

MotiveSummary

Siphon Principle

4 Result▶ Comparison UV-A intensity between sunny day andcloudy day▶ Location : roof top of chosei high school▶ Direction: ①Right angle to the sun radiation②The northern sky▶ Period : 7/25, 7/28, 8/3, 8/4, 8/18,12/28▶ Time :AM8:00～
AM8:00～PM4:00 Every hour

3 Device and Method

2 About Ultraviolet radiation
Ultraviolet rays : length 10- 400nm
UV-A I : the longest wave length 315-380nm.
Most ultraviolet rays are absorbed by ozone layer.

1 Motive and Purpose

decreasedregardless seasons.
▶ UV-A might be diffused by fine dust in the air.
▶ Weaker UV-A which was radiated from the northern
sky could have come from the diffusion of the sun lightby the clouds or dust.
▶ There is q correlation between illuminance and UV-A
radiation intensity. So if the visible light is strong, wehave to prepare the protection against theUVradiation.

▶ UV-A-A intensity increased from morning to noon, and

5 Consideration▶Relationship betw een UV and illuminance▶Difference with seasons

Chosei High School
School Kimika Matsumoto
Matsumoto Makiko Koide

20

Method to solve traffic jams

Influence marbles

Graph’s marbles

automaton.

We analyzed this phenomenon using this cellularwhile in junction.

In preliminary experiment, left lane marbles stopped for aexperiment and marbles model in simulation.

according to the condition. Compare marbles movement in

Decide movement condition of marbles. Move marbles models

model to use cellular automaton.

Cellular automaton is regularly lined up cell aggregate

Cellular automaton

marbles.

The marbles was crashed and was stopped by surrounding

Left lane

marble.

The marbles was crashed and the speed went up by the backRight lane

pictures and make hypothesis.

and trajectory of marbles. Comparing speed change with

Using motion analysis software, can obtain speed change

Motion analysis software

Preliminary experiment ・ Analysis method

experiments by changing cars’ speed.

Cars’ speeds influence the length of traffic jams. So we will do

Hypothesis

We focus above in this research.

Cause of traffic jams

Japan（the Ministry of land ）3.81 billion hours are lost by traffic jams every year all over

MotiveMotive ・ HypothesisMizukami Shohei

marbles（12mm）

Instruments and materials〉

high-speed camera (30fps)

junction model

All marbles start at the same time.

parallel, at the same time start. And obtain time between theCongestion level =(𝒕𝒕𝒕𝒕 𝒕 𝒕𝒕𝒕𝒕



References

maintenance for urban regeneration )(countermeasure of traffic congestion in urban area, roadToshikennokotsujutaitaisaku, Toshisaiseinotamenodoroseibi

Shintyousya, 2006

Nishinari, Katsuhiro, Jutaigaku (congestion science).

date.

Experimental analyze of y-shape lane.
Congestion simulation using C language base on analysis



Future outlook on researchincreases.

The traffic jam becomes bigger as the congestion level′)− (𝒕𝒕𝒕𝒕𝒏𝒏𝒏𝒏 − 𝒕𝒕𝒕𝒕′𝒏𝒏𝒏𝒏 )Calculate degree congestion level based on data.

head and the end of lane start and end 𝒕𝒕𝒕𝒕𝒏𝒏𝒏𝒏 , 𝐭𝐭𝐭𝐭 𝒏𝒏𝒏𝒏′

Fig. example of the instrument

instruments, and material.

the tone and the waveform, frequency spectrum, shape, of

foaming polystyrene, paper, and so on.)material. (for example, things used vegetables, snack foods,

waveform, frequency spectrum, shape, of instruments, andtime if we can find relationships between the tone and the

instruments which can take out many sounds at the samethe same time. We think we may be able to create

analysis software. Because we research how the waveform
contains each overtone. We consider relationships between

In general, a wind instrument can’t take out many sounds at

Perspective

We record it on Easy Sense and analyze it used Excel.

carried out an experiment.

constant force as much as possible, we made the device and

But In order to be able to hit the tuning fork with acontains one frequency.

We make sure that one tuning fork with only one frequencychange the waveform into Fourier transform.

We sound tuning fork(A:440Hz) and record it. Then

Preliminary experimentchange the waveform into frequency spectrum by frequency

Horn, Euphonium, Tuba) used Easy Sense’s sensor. We

Oboe, Clarinet, Saxophone, Bassoon, Trumpet, Trombone,

We record sounds of ten kinds of wind instruments (Flute,

the instruments.

Next use same marbles, start at equal intervals, left-rightFirst, roll marbles one by one. And obtain time between thehead and the end of lane start and end 𝒕𝒕𝒕𝒕, 𝒕𝒕𝒕𝒕𝒕.

From the preceding studies difference of tone is difference

Ways of doing experimentcolor and the shape or material of instrument.

We decided to make a research on relation between the tone

are different in tone color.

instruments: brass instruments and wood instruments. These

played by blowing the breath. There are two kinds of windWind instruments are a kind of musical instruments are

MotiveFirst grader Miu Imura, Haruto Kikuno

Chiba Municipal Chiba High School Science and mathematics course

Shape of instruments, Material and Toneof waveform. The waveform change by peculiar frequency to② Roll 5 marbles each lanes on road of ①.

to add resistance.

① Made Y shaped road to use foaming panel. And, put device〈Method〉

To be same distance marbles.
One side marbles only change speed.

All marbles are same standard.

〈Condition〉







〈Experiment

Experiment Method

Kojima Takuma

Chiba municipal chiba high school

Congestion caused at Junctions

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91

３０°

Discharge angle(°）

20°

92

99

４0°

85

Relation of flight distance and dischrge angle

kite string

５０°

87

Materials㻌 :㻌styrofoam/ rubber bands/ kite string / weights /airplane papercrafts
Method : 1㻌 Place a notch of 4 cm x 4 cm x 3 cm at the center of the 23 cm side of the
foamed polystyrene and hang a rubber band there.
2㻌 Attach the kite string to 50 g (8 pieces) of weight and attach the tip of thekite string to the rubber band.
3㻌 Paper craft paper airplane on a launch pad made of up to two.
4㻌 Put a paper craft paper airplane on this launch pad.

❏The experiment
We actually skipped the paper airplane in wind-free environment and examined theflight distance.

Materials : styrofoam / rubber bands/ kite string/ weights/ airplane papercrafts
Method : By attaching a straw in a state standing on the left side and the right side of
the fuselage of the airplane and fixing the straw to the horizontal base, bysending the wind from the front with a fan from the front.
Result : The wind wound a whirlpool and did not rise well.

㻌❏Preliminary
experiment
We bite a bamboo chick in the form of an aircraft made of Styrofoam and fixed it andcompared the height of the highest point raised by blowing wind from the front withanother fan.

References㻌 㻌 www.jal.com/ja/jiten/dict/p051.html

In this research, I realized the difficulty of fluid dynamics. In the future, we plan to reduce the weight while reducing the size of the aircraft and experiment with an airplaneflying with lift. And this time I studied only the "relationship between lift angle and lift", but I would like to investigate "relationship between wing position and lift" fromnow on.

❏ Future Prospects

It was like a hypothesis, but in most experiments the plane wasflying with an arc. So I can not say that this airplane flew using lift.
Therefore, in order to produce the wing which produces the lift, I
thought that I should go using the lift force formula. Also, in order
to use the lift sufficiently and to fly, we thought that we shouldmake the wing three-dimensional, and generate a difference inatmospheric pressure between the upper and lower surfaces of thewing.

❏Consideration

https://www.ana.co.jp/dom/promotion/paper_airplane/pdf/airplane_vol22_02.pdf

styrofoam (450mm×230mm×30mm) ,rubber band, string of akite, weight, straw, takehigo ,paperwork of the airplane( downloaded free material of ANA)

❏Materials

The angle when an actual airplane takes off, thought so 30 times
might fly most 30 times.

❏Hypothesis

It's examined how the flight distance changes according to the risecorner.

❏Purpose

Since we are interested in an airplane, we have seen the form that an
airplane is taking off, have thought I'll examine how it's flying andhave begun this study.

❏Motive

The height of the peak where we stuck a skewer into the one with theshape of the airplane made with styrene foam, fixed, turned a currentof air by an electric fan from the front and rose was compared withsomething else.
We paid attention to a change in a rise corner by this experiment. The
rise square was being raised each 10 times from 0 times specificallyand it was checked to the angle where an aerial flow becomes
estranged.

❏Summary

Chemistry Club in Chiba Prefectural Yakuendai High School

YOSHIDA Hisanari, NAGAI Akira

Relation between a rise angle and the lift

Flight distance(cm)21

1 年 古市 亮生

Dye(Photocatalyst)

e⁻⇒

3I⁻

I₃⁻
⇒e⁻

・速水浩平 著 『振動発電のすべて』 ２００８ 日本実業出版社

参考文献

・２種類を比べた結果，ロッシェル塩のほうが値が高い理由の追求
・今回の構造で圧電効果が得られた理由の追求
・圧電素子の構造の追求

展望

塩化ナトリウムよりロッシェル塩の方が値が高いことが分かった。原因は結晶構造に違いがあるからだと考えられる。その理由としては結晶構造の違いで粒子の動く距離や速さが変わったからだと考え
られる。

考察

グラフの通り,塩化ナトリウムよりもロッシェル塩の方が電圧の値が高
くなった

0

50

100

150

200

0

50

100

150

200

250

300

350

400

5

10

15

20

Homemade

25

0

5

10

20

25

30

1.0mol Voltage[mV]2.0mol Voltage[mV]
3.0mol Voltage[mV]
15

35

45

50

55

60

Time (min)1.5mol Voltage[mV]
2.5mol Voltage[mV]4030Time (min)CommerciallyCompared to commercially available products(the photo catalyst)

Molar concentration changes (acetate）

0

Examine the relationship of dye-sensitized solar cells in photovoltaic and dye extraction
temperature.

100

Dye-sensitized solar cells using
photocatalysis based on acetic acid showedvalues close to the electromotive force ofdye-sensitized solar cells on the market.
Extraction temperature is 80 degrees whenthe electromotive force were highest.

Time (min)Relationship between pigment extraction
temperature and Electromotive force

Results and Discussion

Dye

10
20
ロッシェル塩 塩化ナトリウムWe prepared photocatalytic titanium dioxide, compared to what is used in dye-sensitized solar
cells commercially. Photocatalyst is fabricated by acetic acid and titanium dioxide and ethanol.

200

5Photocatalyst

300

0🔁🔁 to 1.

5. Erectrons back to the dye.

Fig5

Fig4

Fig3

Fig2

Fig1

(6)Deliver electrolytic solution bydrops into stainless mesh./(Fig.5)(5)Using potassium iodide,dimethyl sulfoxide, iodine, wecreated a electrolytic
solution.(Fig.4)(4)We apply the Stainless meshwith carbon applied to a surface
to the laminated film. At this time,
we have a nip at copper
mesh.(Fig.3)(3)Stained with a hibiscusdye.(Fig.2)(2)To create a titanium oxide
paste. Stainless mesh is formed bycoating and baking the titaniumoxide paste.(Fig.1)(1)Cut stainless mesh into 24
equal pieces.

Making method
Dye-sensitized solar
cells(Film shaped）

Dye-sensitized solar cell (1 cell)

4. Redox reactions happen in iodine electrolyte solution.

3. Erectorons pass through the circuit.

2. Pigment is excited, and it emits electrons.

1. The sollar cells were irradiated by the light.

Iodine electrolyte solution

圧電素子をテスターに繋ぎ万力に挟んで電圧を測定した

Experiments for improvement(photocatalyst and dye)TiO2 photocatalyst

Sollar cells

What’s the “Dye-sensitized solar cells”?
~Structure~

Iodine＜実験の手順＞

圧電材料の違いによる電圧の変化

Voltage(㎷)Conclusion
Photocatalyst
We succeeded in producing our dye-sensitized solar cells by using acetic
acid to create photocatalysts. But our dye-sensitized solar cells behind tocommercial products yet.
Dye
Pigment extraction when the temperature is too high lead to degradationof the electromotive force. Want to know the relationship between the
wavelength and the fading of carthamine.
Film shapeThin dye-sensitized solar cells can use in more cases.
But power is lower than those based on electrically-conductive glass. We
should think about the overall shape.

400

粉末状の圧電材料

ゴム板

Ecklonia

Inspired by the research of iodine (Using local seaweed ecklonia ), dyesensitized solar cells for research. The first goal is that exceed thecapabilities of commercially available products.
Dye-sensitized solar cells research content is divided into parts. I tried
to improve our dye sensitized solar cell capacity, by doing research for
each.

Introduction

KGEYAMA Takumi, KAWABATA Yuta, KANSAKU Yoshitaka

Awa High School

Study of Dye-sensitized Solar Cells

500

実験結果

アルミニウム板

銅板板
銅板③②のゴム板の中に塩化ナトリウムを入れ，金属板で挟んだ②厚さの異なるゴム板を筒状に切った①塩化ナトリウムを乳鉢ですりつぶした

今回使用する圧電素子の構造

Voltage (㎷)

塩化ナトリウムとロッシェル塩の違いを調べるため厚さを定め測定を行った。

＜実験の目的＞実験

力を入れると右の図のように粒子が動き電圧が生じる

圧電素子とは２種類の金属の間に圧電材料を挟んで力を加えると電気が起こる装置のことである。

圧電素子とは・ロッシェル塩の方が電圧の値が高かった。
・5 mmよりも10 mm,20 mmよりも10 mmの電圧値が高かった。

結果

圧電材料としては酒石酸ナトリウムなどがあるが，身近なもので代用できないかと考え実験を行った。身近にあるものが圧電材料になるか調べるため，実験を行った。

目的

塩化ナトリウムを使用した圧電素子の開発

千葉県立安房高等学校 化学部 圧電素子班

Voltage (mV)

22

23

2. Study of making stronger CNF

They were transparent.

3. Study of another applications of CNF.

Fig. micrograph(×150)

Common paper

CNF

CNF is finer than common paper.

Fig. result of experiment Ⅱ (from the left, 4h, 7h, 15h)⁄⁗⁥⁧⁞⁦⁥‡‶⁛⁥⁕⁧⁥⁥⁛⁡⁠‒ Ⅱ‒

3.~5.

H2SO4 and KOH couldn’t decompose pulp at this temperature. Cellulase
could decompose pulp. However, it was sticky, and we could observe
Fehling’s reaction, so there is not only CNF but glucose. Therefore, we foundthat 22.5h is too long for decomposing pulp into CNF.

Fig. result of the experimentⅠ・How to make transparent paper :http://www.nogimasata.com/research/make/・Making paper from natural materials : http://www3.plala.or.jp/eisho-an/kamisuki/kamisuki.html
・Production of Cuprammonium Rayon : http://www.aichi-c.ed.jp/contents/rika/koutou/kagaku/ka3/douannmo/douannmo.htm
・Laboratory of Active Bio-based Materials, RISH, Kyoto University Cellulose Nanofibers : http://www.rish.kyoto-u.ac.jp/labm/cnf
・Kondo, T.: Mokuzai Gakkaishi, 54, No.3, p107~115 (2008)
・Yano, H.: Nippon Gomu Kyokaishi, 85, 12 (2012)⁄⁗⁘⁗⁤⁗⁠⁕⁗⁥‒

1. To improve reproducibility‸⁧⁦⁧⁤⁗‒⁂⁤⁡⁥⁢⁗⁕⁦⁥‒

3) The same procedure as Ⅰ 3.~5.（The procedures are the same as Ⅰ

2) Devided it into three based on time for reaction (i) 4hours (ii) 7hours (iii)
15hours1) Making pulp pulverise (same procedure as Ⅰ)‷⁪⁢⁗⁤⁛ ⁗⁠⁦‒ Ⅱ‒

We should be able to extract only CNF by stopping reactions before cellulose
turns into sugar.

›⁫⁢⁡⁦⁚⁗⁥⁗⁥‒ Ⅱ

Ⅱ A comparison of reaction time

1. Dissolve paper in water and Cut into small pieces by mixer
2. Put three reagents into 1. (i)H2SO4 (ii)KOH (iii)cellulose
3. Make them react in oven(40℃) for 22.5h.
4. Cool and Concentrate them.
5. 1) Pour them into a petri dish covered with water poof spray.
2) Dry it up with a vacuum oven. (40℃)‷⁪⁢⁗⁤⁛ ⁗⁠⁦‒ Ⅰ<CNF from Cuprammonium rayon>⁄⁗⁥⁧⁞⁦⁥‡‶⁛⁥⁕⁧⁥⁥⁛⁡⁠‒ Ⅰ‒<Paper made from straw>

By using H2SO4, KOH, cellulase (an enzyme which can decompose pulp),
it’s possible to decompose pulp into appropriate long cellulose, CNF.

›⁫⁢⁡⁦⁚⁗⁥⁗⁥‒ Ⅰ‒

Ⅰ Study of extracting CNF from pulp

・sticky・very thin

<CNF from vegetables>

#[WOK*#)+/14+-CJQ;#/#/161

Purpose: Considering various kinds of the way to make Cellulose Nanofiber (CNF).
Background: CNF is a substance which made by cutting Cellulose into small pieces. Recently CNF is becoming popular as a new material.
However it’s difficult to make it, and making it involves too much production costs.

※⁠⁦⁤⁡⁖⁧⁕⁦⁛⁡⁠‒‒/CMKPIQH%GNNWNQUG0CPQHKDGT$QWPEKPI,GV
/CUCMK/WTCMCOK

causes Bouncing. Moreover, the result② proves that it is necessary foroccurrence of Bouncing to touch into air. These two evidence shows that
hypothesis② is right.
Result③ suggest that Hypothesis 1 is true, and new hypothesis that theforce except gravity is applied.(Maybe van der Waals force)②At the moment firing port touched into the surface of liquid, Bouncing
stopped.
③Under Hypothesis 1 is true, this calculation(Illustration①) is true.

１）http://www.nature.com/news/2007/070716/full/news070716-17.html   ２）http://journals.org/pre/abstract/10.1103/PhysRevE.76.056319
３）Matthew Thrasher, Sunghwan Jung, Yee Kwong Pang, and Harry L. Swinney, Physics of Fluids、19、91110 (2007)、Bouncing of a Jet off a Newtonian Liquid Surface４) 0asaki Kato、Kengo Kawano、Taemi Arai、Sinichiro Harada、Society for Science on Form、27(2), (2012), Form of droplet and liquid current (in Japanese)
http://katachi-jp.com/paper/27(2).pdf
) Andrea Bonito, Jean-Luc Guermond1 and Sanghyun Lee, International Journal for Numerical Methods in Fluids 80,53-75,2016 Numerical simulations of bouncing jets
）Nozomu Hashidume, Student Research-paper(Ichikawa-high school), 184-187(2016) 「%RXQFLQJ/LTXLG」‾⁛⁦⁗⁤⁓⁦⁧⁤⁗‒⁕⁛⁦⁗⁖‒‒‒

in particular interface field.
Bouncing may be caused by combination of two or more forces.

‵⁡⁠⁕⁞⁧⁥⁛⁡⁠‒Bouncing will be useful in high molecular textile industry,

When fluid moves at high velocity, atmospheric pressure around the fluid
become low and air stream in, so air layer is made. It push up fluid, and‵⁡⁠⁥⁛⁖⁗⁤⁓⁦⁛⁡⁠‒① When larger caliber syringe was used, Bouncing hardly ever occurred.

⁄⁗⁥⁧⁞⁦‒‒

Using silicon 100cS, the principle of bouncing was investigated.
① Silicon was injected by syringe in hand.
② By slow-shooting-function with iPhone6, the states of bouncing wererecorded in movies and analyzed.
③ Keeping Bouncing occurring the firing port into the surface of liquid
was put.
④ Changing caliber, I did same operations⁄⁗⁥⁗⁓⁤⁕⁚‒⁂⁧⁤⁢⁡⁥⁗ About Bouncing Jet(Bouncing),a phenomena that sticky fluid spits when it crashes into same liquid, Two hypothesis were set up, and proved.
 Principle of spitting hadn`t been proved yet.
Focused on concave made when crashing and, shape of parabola after spitting.
Hypothesis 1：At any point, the velocity of liquid is same.
  Hypothesis 2：Formation of air layerThis phenomena is caused by air layer.   ‴⁓⁕⁝⁙⁤⁡⁧⁠⁖‒

To check whether we can remove by-product correctly.

reproducing experiment of Leblanc method.

To research the collective rate by the shrunk

16.0mL

4.4×10-4mol

8.80mL

3.17×10-2g

Weight**11.57mL
26.14mL

14.57mL

1.49%

CaS Rate

crystal.

purity was not, so we have to find a way to extract purer

Though collective rate was better than we had expected,

Conclusion**Converted to weight of calcium sulfide

Amount of substance

Titer

Result of Oxidation-Reduction Titration

Purity: 57.8%

through filtration and recrystallization, and weigh it.

Collective rate: 57.9%**Theoretical value: 2.0×10-2mol



14.0mL12.0mL

3rd time

Amount of substance of sodium carbonate: 1.16×10-2mol

Total

11.6mL11.1mL

1st step
2nd step
13.7mL

2nd time

1st time

Result of Acid-Base Titration
averagewith 5.0×10-3mol/L iodine solution three times.

into each of them. Take oxidation-reduction titration

Prepare other 3 conical beakers and put 10mL solution

Result and Discussion②

2nd step: NaHCO3+HCl → NaCl+H2O+CO2↑

Wash that product in water, extract white crystalheat it with burner and Muffle furnace for 50 minutes.

carbonate and 1 gram of charcoal into the crucible. Then,Put 3 grams of sodium sulfate, 2 grams of calcium

The weight of the crystal: 2.13g②①

Experiment

2.

1.

PurposeNa2SO4+CaCO3+2C→Na2CO3＋CaS＋2CO2

be extracted.

Na2CO3＋HCl → NaHCO３＋NaCl

three times.
1st step:

Take acid-base titration with 0.1mol/L hydrochloric acidcalcium carbonate and charcoal, and heat them at 1000℃.

After filtration and recrystallization, Sodium carbonate canconical beakers and put 10mL solution into each of them.

Make 100mL water solution of the crystal. Prepare 3

generate it in the 18th century. It is to mix sodium sulfate,①

Verification

government adopted the Nicolas Leblanc’s method to French people needed much sodium carbonate, so theIntroduction

Contents







T im e on dialysis［m in］

Time on dialysis





9.0*10^-50

3.0*10^-5

6.0*10^-5

㻜

㻞㻜㻜

㻢㻜㻜

㼀㼔㼑㻌㼍㼙㼛㼡㼚㼠㻌㼛㼒㻌㼙㼕㼤㼕㼚㼓㻌〔㼠㼕㼙㼑〕

㻠㻜㻜

㻤㻜㻜

Calculated concentration*4.

㻝㻜㻜㻜Confirmed ninhydrin reaction*2
and measured of absorbance*3.

Dialyzed the liquid of NATTO that was
crushed by mixer.

1.0*10^-40

3.0*10^-5

6.0*10^-5

9.0*10^-5

1.0*10^-4

㻢㻜㻜

㻤㻜㻜

㼀㼔㼑㻌㼍㼙㼛㼡㼚㼠㻌㼛㼒㻌㼙㼕㼤㼕㼚㼓㻌〔㼠㼕㼙㼑〕

㻠㻜㻜

㻝㻜㻜㻜

㻝㻞㻜㻜

Protein?

Calculated concentration*4.

mixed 100 times when it was 0℃ or 40℃.

Consideration
We could found that the amountof amino acid increased with theamount of mixing. However, there
was difference in how to increase.
25 times increased suddenly but it
gradually increased after that.

If enzymes of NATTO had worked,
it would more increase the amount ofamino acid difference of temperature.
Therefore, we thought enzymes of
NATTO didn’t work.

Consideration

Calculated concentration*4.

Confirmed ninhydrin reaction*2
and measured of absorbance*3.

Bibliography *5 www.customs.go.jp>foodstuffs , otemae-hs.ed.jp>ssh>dat
Equipment we used APEL corporation Ultraviolet-visible spectrophotometer PO-303UV*1 The liquid we rinsed NATTO 10g with distilled water.
*2 Heated ninhydrin reagent 5ml and the sample 1ml for 30minutes and cooled.
*3 Did constant volume of the sample to 50ml,
after confirmed ninhydrin reaction and measured of absorbance at 570nm.
*4 Made the reference solution with glutamic acidand used calibration curve and measured of absorbance.

We couldn’t confirm increasing
the amount of amino acid.

ResultWhether the amount of amino acidincreased with working enzymes, or not.

EnzymeWe could confirm the reason about NATTO became delicious by mixed, so wethought why NATTO became delicious, and we thought by crush and enzymes of
NATTO. However, enzymes of NATTO doesn’t work hard in shirt time fir mixing,
and NATTO wasn’t crushed when it was mixed 1000 times. Therefore we don’tcome to a conclusion.
We want to study that we hypothesize NATTI makes delicious. We want toconfirm total amount of amino acid after and before mixing.

㻝㻞㻜㻜

㻞㻜㻜

The number of mix andthe amount of amino acid

Experiment 4-Relationship between working enzymes of NATTO and the amount ofamino acidAmino acid
Dialyzed the liquid of NATTO that was㻜ResultWhy did it increase?

Consideration
We could found it is 48 hours
that amino acid is equilibrium.
Therefore we decided that wewill do dialysis for 48 hours fromthis experiment.

Calculated concentration*4.

Confirmed ninhydrin reaction*2
and measured of absorbance*3.

Whether the amount of amino acidwith the amount of mix, or not.

Confirmed ninhydrin reaction*2
and measured of absorbance*3.

To crush NATTO and the amount of amino acid.

Summary and Future prospects

Determination
to 50ml

Dialyzed the liquid of NATTO mixed 0,25,50,
75,100,200,400,600,800 or 1000 times.

Consideration
If NATTO had been crushed by mix, NATTO would be very thick.
Therefore we thought NATTO wasn’t crushed by mixer.

ResultWhether the amount of amino acidincreased with crushing.

became constantEquilibrium Concentration

1ml

Experiment 2-Relationship between the number of mix and the amount of amino acid-○ Amino acid
● Polypeptide

Cellulose tube

About dialysis

Dialyzed the liquid of NATTO mixed
1000 times.

Put on a rice

10 times
100 times
When we ate.

Experiment 3-Relationship between to crush NATTO and the amount of amino acid-
0

2.0*10^-5



4.0*10^-5
6.0*10^-5
8.0*10^-5

1.0*10^-4

ResultHow long become it equilibrium?

○PutseasoningExperiment 1 -Time on dialysis-

NATTO’s packon the market

×

NATTO is Japanese traditional foods.
NATTO was made of feremented soybeans. When we researched.

What is NATTO?

Motive and Outline

NATTO, the traditional food in Japan, is known that its deliciousness varies due to the amount of mixing. We had a question why deliciousness varied.
Therefore we thought “became delicious = the amount of amino acid is and” the decomposition of γ-polyglutamic acid, main component of NATTO’s
stickiness, increases the amount of glutamic acid. After dialysis of NATTO’s extract that contains sticky component, we measured the concentration withninhydrin reaction. Then we confirmed the increase pf the amount of amino acid in the extract by mixing NATTO. Next, we did experients to examine
why the amount of amino acid increased by mixing. Then we thought that it wasn’t because enzymes of NATTO worked, but amino acide sticking on
NATTO’s surface began to dissolve in sticky compunent.

The amount of amino acid's
concentration［mol/L］

0DVDNL7DNDKDUD .D]XPD.DQR

Chiba Higashi High School
The stickiness of NATTO ~The reason of mixing NATTO~ Shiho
Nakao Yuki Okikawa

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・Pursuit of reason why anthocyanin does not coexist betalain

・Pursuit of making arbitrary color

Outlooks2+

We consider that hydroxy moiety behaved to flavonoids and it be to pseudobase
what is transparent , consequently the flowers faded .

→Discussion

The flowers faded that have soaked alcohol of smaller molecular weight than larger one .

→Results

MethanolBefore addition②Leaving it for 3 hours

Ethanol

Decolorization①Soaking the flowers in alcohol

Experiment 1

Flavonoids was faded by that was owing to alcohols .

→Results

Betalain

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・塚谷裕一 著，『植物の〈見かけ〉はどう決まる』，，中央公論社 出版
・武田幸作 著，『アジサイはなぜ七色に変わるのか』，，3+3研究所 出版
・中原勝儼 著，『色の科学』，，培風館 出版

Reference

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We consider that the flowers didn't shrink
because it was influence of hormones andenzymes in the staining solution . And using betalain was reddish because staining
solution of betalain is red→Discussion

The flowers didn't shrink that have soaked naturaldye . And it was using betalain was reddish thanflavonoid .

→Results

Pure Water

Betalain

ベタレイン

フラボノイド～Staining Flowers that using natural dye ～①Soaking the flowers in methanol to decolorize②Dipping the stalk of a flower into lubricant with natural dye

Experiment 2

We consider that the flowers shrinked because alcohol of highly hydrophilic was melted
in lubricant.

→Discussion

Only hexanol faded little by little in a week

The flowers shrinked that have soaked alcohol of smaller molecular weight than larger
one . And original color developed .

→Results

Methanol

Butanol～Adding Lubricant ～①Soaking the flowers in methanol to decolorize②Dipping the stalk of a flower into lubricant

Experiment 2

Lubricant →A solution mixed at that ratio (Glycerin : pure water ＝2 : 1 )Staining solution→Dye solution that was extracted from petals with pure water①Adding alcohols of various types to the dye solution

Experiment 1○Using Dye solution
Flavonoid →Petunia
Betalain →Mirabilis jalapa○How to make preserved flower
Decolorization →Staining →Drying○WordsAlcohols of various types→5 types of alcohol : Methanol, ethanol, propanol, butanol and hexanol

We succeed in it that makes preserved flower with natural dyes .

This Work

Conclusion

We want to make preserved flower that is using natural dye because a general preserved
flower is made up of artificial dye .

Day

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Dye

Nishimura Hoshimi , Suzuki Moe

Flower with Natural

Chiba Prefectural Awa High school

Introduction

Produce of Preserved

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How to make Artificial Salmon Roe

We knew Artificial Salmon Roe have better keeping quality
outside the zone of dirt.

A week later

Artificial Salmon Roe startbiodegradation a week.
A late starter cracking on the
shale than on the dirt.

（２）2 Artificial Salmon Roe put dirt(kitchen garden soil). A
Artificial Salmon Roe put schale（heat-treated schale）.

③

Time（m）

Voltage（mV）

Time（m）

Changing the plating time of other metals .palladium , etc.
We will plating time longer who create fuel cell with a higher electromotive force and durability.
We will explore cause of lowering of electromotive force.

OutlooksTime（m）

Voltage（mV）

There is little difference in value.
It was excellent in durability.

Voltage（mV）

Results of Experiment 2

Time（m）• We compared the electromotive force by chaging ofcopper plating time.
④ Pd 5 minutes, Cu 1 minutes⑤ Pd 5 minutes, Cu 2 minutes::⑬ Pd 5 minutes, Cu 10 minutes

Experiment 2 : Effect of Electrolysis of Water

No big change, changing the time to plating in the case of copper.
It only a little plated to mesh.
There is a cause of lowering of electromotive force during electrolysis of water.

Consideration

・Higher electromotive force was come out of copper plating.
・② showed higher voltage than ③.

Voltage（mV）

Results of Experiment 1③ Pd 5 minutes, Cu 5 minutes② Pd 5 minutes, Cu 5 seconds① Pd 5 minutes, No copper• We compared 3 catalysts:

Experiment 1： Effect of Copper Plating②

All results are the average of three times.

①

Reaction formula
2H₂＋O₂→2H₂O

generation efficiency

・High power

CuCl₂ 5.0×10⁻³ mol/L 9 ml
PdCl₂ 5.0×10⁻³ mol/L 2 ml

About Catalyst

About Fuel Cell
Advantage
・Environmentally friendly

Metal catarlyst of oxygen erectrode side

We further investigation about comparing biodegradation speed of margin strength,surround come about biodegradation,water
packging and development agriculture item.

Outlooks

Conclusion
・Copper precipitated short time at five second.
・Experiment 2 indicated tendency in nearly date.
・The electromotive force is high when it plating at nine or ten
minute.
・5 seconds plating is most stable.

NiCl₂ 1.0 mol/L 1 ml
PdCl₂ 5.0×10⁻³ mol/L 1 ml
H₂PtCl₆ 5.0×10⁻³ mol/L 1 ml

（４）Perhaps you could lift Artificial Salmon roe when fusion ice.

We knew at an early date break on the dirt.We think microorganism was cast dead for heat-treated on the schale. Be crashedreason,start biodegradation.So can`t suffer weight water.

Discussion（３）Take a view.

（１）Make 3 Artificial Salmon Roe.

Experiments③And so, globe ice coat with alginate sodium abhibit calcium
chloride. Conclusion globe fit for water packaging.

②And so,used ladle as distinct from half size ping-pong ball.
Became globe. But can`t water packaging.

We superimposed many cut and try down to as of now how tomake Artificial Salmon Roe.
①First,makd alginate sodium let into ladle sinked.but not got
dull.

Previous WorkNEMOTO Masahiro,KONDO Kazuki

We have used copper and palladium as a reagent of fuel cell catalyst. The separation amount calculated, it separated metal
soon in solution. And it was performed electrolyzing of water at most time. We studied that it is how to influence separationand electrolyzing of water in fuel cell. We studied copper attention.

Motivation

Study of Optimal Plating Time of a Fuel Cell Catalyst

Chiba Prefectural Awa High School

Metal catarlyst of hydrogen erectrode side

（３）Between whiles spin so that the exposed calcium chloride
stays moist all the way up to until fusion.

（１）Soak global ice in alginate sodium and coating of an object
Used alginate sodium（NaC6H7O6） and calcium chloride（NaCl２）.It`s microcapsule enclosed in irresolvability gel coating with global ice.
react to form soluble alginate sodium and calcium chloride.
（２）Let into the ice bloomed alginate in calcium chloride.

Artificial Salmon Roe

We knew Artificial Salmon Roe start beverage about a week.
A late starter cracking on the schale than on the dirt.

Conlusion

Validation biodegradation for make eco friendly Artificial Salmon Roe have biodegradation through use of beverage container.

This Work

Soma Chugo，Yosuke Kamiyama

Study of the Biodegradation of Artificial Salmon Roe

Chiba Prefectuｒal Awa High School Chemistry Club Artificial Salmon Roe group

The phrase “meteorologicfal disease” has become a popular topic in books

-35

5

0

1

2

3

4

1000 1005 1010 1015 1020
Atmospheric pressure［hPa］

1025

Fig.1 Relationship between atmosphericpressure and headache intensity

995

1030

0

1

2

3

4

5

0

Fig.2 Relationship between absolutevalue of atmospheric pressure difference
and headache intensity

5
10
15
20
25
30
35
Absolute value of atmospheric pressure difference［hPa］

y = 0.0125x + 1.9737
R² = 0.0032* Atmospheric pressure difference [hPa] = (Atmospheric pressure on the next day when someone
has a headache) – (Atmospheric pressure on the day when someone has a haedache)990

y = -0.0146x + 16.862
R² = 0.0085●We created these figures by using the data of the all subjects.（N=17）

4. Resultsubject)

subjects, Noda-city: 2 subjects, Shiroi-city: 1 subject, Edogawa-ward: 1(Kashiwa-city: 5 subjects, Nagareyama-city: 5 subjects, Matsudo-city: 3

the experiment.

subjects live between 12:00 a.m. to 1:00 a.m. every day during the period of

We used the Internet to check the atmospheric pressure in the area our

migraines.

inform us when they suffered a migraine. We recorded data about their

We asked friends and family who suffer from migraine headaches to

3. Experimental method

nucleus to react.

another “Generator” and the error in the brain stem is causing the brain stem’s

We hypothesize that the emergence of cortical spreading is working as

occur.

the blood vessels expand and irritate the nerves which cause a headache to

0
1000
1005

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1015

1020

1025

1030

1010

2

3

4

5

6

7

8

Proportion of the people having headache intensity "2"
Atmospheric pressure in Tokyo

Proportion of the people having headache intensity "1"

Fumiyuki Goto, Haruna Yabe,Takanobu Kunihiro,Kaoru Ogawa: Migraine associated dizziness and treatment.
Equilibrium Res Vol.67 (3): 205~210, 2008
Jun Sato: Weather Changes and Pain. Spinal Surgery 29 (2): 153-156, 2015
Junichi Hamada, M.D.: Pathophisiology of migraine―migraine generator―. Clin Neurol, 48: 857―860, 2008
Norihiro Suzuki: Innervation of cerebral vesseles and pathogenesis of migraine. THE 57 th ANNUAL MEETING(SAITAMA)
Jun Sato: Possible mechanism of weather related pain. Jpn. J. Biometeor. 40(4) : 219-224, 2003
Fumiyuki Goto, Haruna Yabe,Takanobu Kunihiro,Kaoru Ogawa: Migraine associated dizziness and treatment.
Equilibrium Res Vol.67 (3): 205~210, 2008
Jun Sato: Weather Changes and Pain. Spinal Surgery 29 (2): 153-156, 2015
Junichi Hamada, M.D.: Pathophisiology of migraine―migraine generator―. Clin Neurol, 48: 857―860, 2008

◎Reference

in researching this subject more thoroughly if we can in the future.

symptoms, and measure the atmospheric pressure again. We are interested

low elevation, have the subjects climb a mountain, check severity of

results could be provided if we measure the atmospheric pressure first in afluctuation of atmospheric pressure alone. We think that more accurate

person, so it is impossible to prove that their migraines were caused by theand headaches. However, the lifestyles of our subjects vary from person to

Our results did not show any correlation between atmospheric pressure

6. Summary

conclude that there is truly no correlation.

experimental method and conditions of the subjects, therefore, we cannot

possibility that correlations were prevented from being made due to thecorrelation between headache and atmospheric change. However, there is a

From this data collected in this experiment, it is speculated that there is nopressure change and headache, as well.

with the additional data, there was no correlation between atmosphericJapan Meteorological Agency's observation point "Tokyo" in November. However,Fig.6 and Fig.7 by using the data of hourly atmospheric pressure change atthe date was too infrequent. Therefore, to revise the infrequency, we made Fig.5,

We recorded atmospheric pressure once a day to create Fig.1 through 4, butamount of data, we cannot say that’s necessarily correct.

each subject are more than 0.8, however, according to scatter diagrams and thetherefore, we found no correlation. Some correlation coefficients in the data of

There was no correlation coefficient over 0.2 in the data of the whole subjects,

5. Discussion

Fig.7 Hourly pressure change in Tokyo in November and proportion of people having headache

Proportion of the people having headache intensity "3"0
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Date
Proportion of the people having headache intensity "5"
Proportion of the people having headache intensity "4"

5

10

15

20

30

35

40

45

1015

1

* Proportion [%] = (The number of the people who had a headache
intensity “a”)×100/(The number of the all subjects)

25

1035

y = -0.0069x + 8.7526
R² = 0.0009

Fig.4 Relationship between atmosphericpressure and headache intensity (whenpressure rises)

5
10
15
20
Atmospheric pressure difference［hPa］

25

1000

Trigeminal nerve endings release pain substances for the blood vessels. Thus,

1040

1

2

3

4

5

0

1020

1025

1030

1035

1005

called the “Generator” (including fluctuations of atmospheric pressure). Then,

1030

0

1

Fig.6 Relationship between average ofatmospheric pressure while headachedevelops and hedache intensity

1020

0

y = 0.0461x + 1.7705
R² = 0.0389

Fig.5 Relationship between atmosphericpressure and headache intensity at the
beginning of headache

1010

y = -0.0046x + 6.3891
R² = 0.0004

0

1

2

3

4

5

Atmospheric pressure［hPa］◎Trigemino-vascular theory

Trigeminal nerves around cerebral blood vessels are squeezed by something

-5

2

3

4

5

Atmospheric pressure［hPa］

0
1000

1

2

3

4

5

-25
-20
-15
-10
Atmospheric pressure difference［hPa］

Fig.3 Relationship between atmosphericpressure difference and headache
intensity (when pressure falls)-30

y = -0.0217x + 1.7734
R² = 0.0107

atmospheric pressure increases and the reason for Migraine aura or nausea.

headache to occur. As a drawback, it is impossible to consider the reason

pressure decreases, and squeeze Pain sensitivity nerves, which causes a

It is a classical hypothesis. Blood vessels expand because atmospheric◎Vascular theory

sensor” in living creatures.

whose inner ear was broken shows the existence of “The Atmospheric pressure

hasn’t been confirmed yet. On the other hand, the experiment which uses miceheadaches. The existence of “The Atmospheric pressure sensor” in humans

information from different organs causes sympathetic excitement and“body balance has collapsed” but, eyes sends a different signal. The different

inner ear detects fluctuations of atmospheric pressure and sends the signal“The Atmospheric pressure sensor” which is assumed to be present in the◎The Atmospheric pressure sensor hypothesis

2. Mechanism of headachespressure.

whether there is some kind of relation between headaches and atmospheric

the change of temperature and the atmospheric pressure. We inspected

Headache intensity
Headache intensity
Atmospheric pressure［hPa］

Headache intensity
Headache intensity

and TV recently. A meteorological disease is a disorder which is caused by

Headache intensity

Proportion［%］

1. Motive

BeforeAfter sonn

After 15 minutes After 30 minutes After 60 minutes

80

140

10
0

0

BeforeAfter soon

After 15
minutes

After 30
minutes

After 60
minutesFig.2 Change of foot temperature before and after the footbath

26

27

28

29

30

31

32

33

34

35

36

C's foot temperature4

B's foot temperature3

A's foot temperature2

Fig.1 Change of blood pressure (BP) and pulse before and after the footbath

20
20

30

40

50

60

40

60

80

100

70

90

160

120

100

180

A's pulse
B's pulse
C's pulse
A systolic BP
B systolic BP
C systolic BP
A DBP
B DBP
C DBP

The date is the average of the three measurements. The results of subject A
were not clear. Subject B’s blood pressure and pulse gradually decreased.
Subject B fell asleep 40 minutes of after the footbath. The foot temperature
decreased in comparison to the temperature before the footbath. In the caseof subject C, the blood pressure and pulse decreased as well. Subject C fell
asleep after 40 minutes of footbath in all three trials.

Results

・The subjects were A (female; age 16), B (male; age 48) and C (male; age 81).
・Each subject sat on a chair and took the footbath for ten minutes (the watertemperature was 40℃ and the room’s was 24 ℃).
・The foot temperature was measured with a thermometer, which was placed
between the first and second toes. The blood pressure and pulse were
measured with a blood pressure meter.
・The foot temperature, blood pressure, and pulse were measured five times(Before the footbath, soon after the footbath, after 15 minutes, after 30
minutes, after 60 minutes).
・The date was measured three times each subject.

■Details of this experiment■In the regards to temperature “BEAUTY HEALTHY”: http://beautyhealty.web.fc2.com/sokuyoku.html
Last accessed: 2nd March 2017

 “TOKYO SENTO” : http://www.1010.or.jp/mag-column-07/
Last accessed: 2nd March 2017

 Yuka Kasahara, Keizi Igarashi ,Kaori Kurauchi.et al.(2008):”Study on therelaxation effect of warm footbath” Journal of the Faculty of Human
Studies, Bunkyo Gakuin University 10(1), 297-307.

 Kentaro Kaneko, Hideki Kumagai, Yu Ogata.et al. (2009): “Physiological
Effects of Footbath on Cardiovascular and Autonomic Nervous
Functions” Japanese journal of nursing art and science 8(3), 35-41.

Reference Thank Mr. Sato and Mr. Takaishi for technical assistance.
 Thank Ms. Hiroi and Ms. Janssen for English assistance.

Acknowledgment

It is hypothesizes that footbaths have an effect on the onset of sleep. This isbecause subject B and subject C often fell asleep after taking a footbath.

<In the regards to causation of onset of sleep>

The results of subject B and subject C are clear in comparison to those of
subject A.→It is hypothesized that taking a footbath is more effective to theelderly than to the young.

<In the regards to age>

■Additional observations

The results of subject B and subject C show that the blood pressure and pulse
decreased after taking a footbath.
According to reference, the parasympathetic nerve is activated when bloodpressure and pulse decrease. It seems that footbaths caused the subjects torelax. In addition, it is hypothesized that footbath also have an effect ofincreasing immunity. This is because the natural killer cell is activated whenparasympathetic nerves are activated.

■In results to the relaxing effectAccording to the results, only subject A’s foot temperature was maintained
60minutes after experiment. The foot temperature of subject B and subject C
decreased. This result seems to be related to the temperature measured
before the footbath. It is important to try to keep warm after taking afootbath, for people who have a naturally high temperature.

Discussion

Method3. Warms entire body
6. Promotes easier sleep

We investigated the warming effect on the body by measuring thetemperature of the foot. We investigated the relaxing effect by measuring
blood pressure and pulse. We can consider that parasympathetic nerves holda dominant position if it can be confirmed that blood pressure decreases. We
considered that taking a footbath leads to a relaxing effect because it
facilities a resting and fatigue recovery state.

1. Keep feet clean
2. Promote blood flow
4. Has a relaxing effect
5. Eases throbbing pain
7. Promotes building various immunities■Effects of footbath

A hot spring footbath is a bath that bathes only the lower half of our legs using water from a hot spring.
Hot spring footbaths are convenient because we can enjoy taking a footbath with our clothes on.
There are a lot of footbath areas which people can access easily, such as natural hot spring areas and the stations.

Higashi Katsushika High School

Rin Taguchi, Saki Namatame

Effect of footbath on body temperature,
blood pressure and pulse

Introduction■What is a Japanese footbath ?

Blood pressure (mmHg)

Akane Imada, Rina Aiso, Hiro Inoue
Higashikatsushika High School

Foot temperature (℃)

Relationship between atmospheric pressure and headache

Headache intensity

pulse ( / minutes)

28

29

（Fig.6)

7

8

9

10
Time(hour)

A

B

11

12

with berberine 100µL
no berrberine 100µL

13

A

14
(Fig.11)

with berberine 200µL
no berberine 200µL

1.We prepared two kind of YPD medium solution which are in berberine and no berberine.
Then,we mixed those and yeast.
2.We researched relationship between time and transmittance of those.
{Result} Without berberine, the permeability decreased very much in about 10 hours, but inthe solution containing berberine, the transmittance was didn’t decrease.(Fig.11)＜Experiment4＞ We researched the effect of berberine on the growth of yeast.

L
e
n
g
t
h

80
70
60
50
40
30
m 20
m 10
0

0

・The antibacterial effect of Phellodendron amurense and berberine could be confirmed.
・It was found that there were yeast strains resistant to berberine.
In future, We would like to reserch the ratio of berberine-resistant yeast contained inyeast and whether berberine-resistant yeast is resistant to other antibacterial
components＜Summary · Future prospects＞

薬学雑誌 p1143～1144萩庭丈寿，原田正敏：医療資源の開発に関する研究(第2報)
続・生物工学基礎講座 バイオよもやま話 ｐ149 細胞の増殖を捉える 計測法から比速度算出まで 小西
正郎 堀内淳一
黄柏（おうばく）：漢方薬、生薬の通信販売－中屋彦十
郎薬局「http://www.kanpoyakunakaya.com/oubaku.html」＜Experimental instruments used＞(Fig.13)mm

coffee only vermiculite

0

20

40

60

80

100

120

soil only

soil andcoffee

L
e
n
g
t
h

(

0

m
10
m

20

30

40

50

Soil and coffee A

Soil and coffee B

root

stem

coffee only vermiculite『Ratio comparison experiment of the coffee』‒)(Fig.12)

B

L
e
n
g
t
h

(

{Consider} there was a difference in the growth of thetwo kinds of yeasts in the medium containing berberine,
it is considered that the yeast A has a berberine resistance.

soil andcoffee『Table2. The length of the root average』

soil only『Table1. The length of the stem average』

‒

‒

‒

⁄⁗⁥⁧⁞⁦⁥‒『The experimnt that is targeted for the growth restraint with the coffee』‿⁗⁦⁚⁡⁖⁥①‒『The experimnt that is targeted for the growth restraint with the coffee』
I measured and water was given for 2week.
Soil : coffee = 2 : 1
It sowed six seeds to one cup.
‿⁗⁦⁚⁡⁖⁥②‒『Ratio comparison experiment of the coffee』
I changed coffee and a ratio to mix of soil.
Soil : coffee = 2 : 1 ←Ａ
Soil : coffee = 3 : 1 ←Ｂ‿⁗⁦⁚⁡⁖⁥③‒『Plant restraint action with caffeine』
I gave water and caffeine water solution (0.5%、１％、２％)

20

6（Fig.5)

water

0.50%

1%

2%

root

steam

‵⁡⁠⁕⁞⁧⁥⁛⁡⁠‒
I found out that coffee has the ingredient which makes plant growth restrain.
The coffee could control the growth of the plant, and it understood that caffeine
included in the coffee influenced it. It is thought that caffeine provides plant
restraint. I would like to make them restrain plant germination and growth ofweed in a garden and a field. Now I research effect green tea instead of coffee‒⁄⁗⁘⁗⁤⁗⁠⁕⁗‒
Field Evaluation of Coffee Grounds Application for Crop Grouth
Enhancament,Weed Control,and Soil Improvement
Kouji Yamane
Plant Production Science,17,93-102 (2014)

・I concluded that caffeine polyphenol is related to plant grown-up restraint,
because when water is absorbed from a root, caffeine and polyphenol are also
absorbed together.

<Ingredient of the coffee>・All polysaccharides (24.0~39.0%)
・Lipid (14.5~20.0%)
・Protein (13.0~15.0%)
・Polyphenol (1.2~1.3%)
・Caffeine (0.9~1.0%)
・Trigonene (0.5~1.0%)
・Inorganic ingredient (3.3~4.5%)‶⁛⁥⁕⁧⁥⁥⁛⁡⁠‒
・Coffee had plant restraint action from these results.
・I understood that I controlled the growth of the root than the growth of thestem more.
・It concluded that an ingredient of the coffee affects the growth of the root morebecause it suck water from a root.

<Be showed by results>
・The one where I mixed coffee and soil with did not grow up only than soil.
・It did not germinate only with coffee.
・When I mixed soil and coffee, one of the coffee with many ratios did not growup.
・When I compared it in a stem, as for the thing which I mixed soil and coffee
with, only 46% of things which I brought up only with soil grow up When I
compared it in a root, as for the thing which I mixed soil and coffee with, only
12.2% of things which I brought up only with soil grow up.
・When I compared it in a stem, In soil and coffee A, only 68.7% grew up thansoil and coffee B When I compared it in a root, In soil and coffee A, only 58.4%
grew up than soil and coffee B.
・The growth of the plant was restraint by giving a caffeine water solution.
・Compared with water, plant grew up in 59% with 0.5% of density, grew up in
44.8% with 1% of density, grew up in 11.2% with 2% of density in the stem when
I gave a caffeine water solution.
・Compared with water, plant grew up in 48% with 0.5% of density, grew up in
44.7% with 1% of density, grew up in 10.6% with 2% of density in the root when
I gave a caffeine water solution.

80
70
60
50
40
30
20
10
0

『Plant restraint action with caffeine』‒+EJKMCYC*KIJUEJQQN)TCFG
6CMWVQ 5CMCK2NCPVUITQYPWRTGUVTCKPVCEVKQPCPFTGE[ENKPID[EQHHGG
‒‒‒ ″⁔⁥⁦⁤⁓⁕⁦‒‒ There are many coffee consumption in Japan, so it thought‒ that a large quantity of coffee residue is discarded. If useful‒ usage of the coffee residue is found, environment load is‒ reduced. In this study, broccoli (brassica oleracea var.italica)‒ was inhibited growth by coffee residue or caffeine. It suggests‒ that coffee residue and caffeine could inhibited the growth‒ weeds of the lawn.
‒‒※⁠⁦⁤⁡⁖⁧⁕⁦⁛⁡⁠‒⁂⁧⁤⁢⁡⁥⁗ I research that coffee makes them restrain plants growth‴⁓⁕⁝⁙⁤⁡⁧⁠⁖ I thought that I made them restrain growth of weed using
something to get easily, and weed in a garden was chosen.

40

60

80

100

120

（Fig.4)＜Experiment2> Antibacterial effect of Phellodendron amurense .
①No Phellodendron amurense(Fig.7) ②Aqueous solution of Phellodendron amurense(Fig.8) ③10 times higher than B(Fig.9)｛Result｝① and ② ： Colonies could be found(Fig. 7)(Fig.8)
Colonies of ① is bigger than ② .
③： Colonies couldn’t be found(Fig. 9)(Fig.7)(Fig.8)(Fig.9)｛Consider｝The extracted components of Phellodendron amurense have antimicrobial effect , depending on the amount of
extracted ingredients, the strength of the antibacterial effect changes.

（Fig.3）(Fig.1) Structural
formula of berberine)＜Experiment５＞ We researched whether there is yeast which isn’t affected antibacterial effect of berberine{Result} In the berberine medium(Fig. 12), yeast A made colonies bigger than yeast B made. In the no berberine medium
Yeast Yeast(Fig. 13), both colonies are about the same size.
Yeast Yeast

Transmittance(%)＜ Experiment3＞ Extracted berberine
We confirmed extracted components by TLC(FIG. 9) however, various substances weremixed. We extracted berberine from there.
（Yield:1.14％）｛Consider｝Yellow crystal were gotten, andit was confirmed from TLC results that it was (Fig.10)
almost pure berberine.

｛Result｝ We could extract
the powder of the ingredientof the Phellodendron
amurense 7.59 g.（Fig.5）＜Experiment１＞ Extracted
components of Phellodendron
amurense（Yield:9.07％）（Fig.2)＜㻻㼢㼑㼞㼢㼕㼑㼣＞
Phellodendron amurense contains much berberine (Fig. 1)
in it endothrlium. It has a strong antibacterial effect, it is also used for traditional
Chinese medicine. We report on its antibacterial effect using yeast.

CHIBA HIGASHI HIGH SCHOOL
Antibacterial effect of Phellodendron amurense Haruka KAIDUKA,
Aoi KIMURA, Hirokazu MIYAZAKI

(
)

30

31

/0W\SH+0W\SH

Harder gel ⇒㻌 1/X bigger 㻌⇒㻌 1/X smaller㻌: indicator of the hardness 㻌Softer gel

1/X

X = the area of orange part 㻌

1 15mL of the mixture of pectin gel was taken.
2 Smaller dish was set on it.
3 By the weight of the dish the gel was pushed down
and spread. Then measured the area of it.
4 The reciprocal number of the area is the indicator of
the relative hardness, and determined as our own
unit of the hardness.
5 The area of which the circle of radius 3cm long as thestandard, to call that reciprocal number 1glg.

▶How to make gel
1 40g of LM-pectin powder and 500mL of water
were mixed and heated at 70℃.
2 Added CaCl2, or sucrose, or malic acid
3 Allowed to cool to 20℃ → gelation.
▶How to make measure the hardness

3 Material and Method▶ Investigate the most effective concentration of
calcium ion for the LM-type gelation.
▶ Confirm acids or sugars are really ineffective forthe LM-type gelation.

2 Purpose▶ It is said the gelation is influenced by acids, sugars,
and calcium ion.
HM-type →acids, sugars LM-type →calcium ion

their positive charge.

▶ Acids and sugars are ineffective for the LM-typegelation▶ Only calcium ion is effective for the LM-type gelation▶ Same concentration as milk is the most effective▶ Potassium ion and magnesium ion are ineffective▶ Calcium ions connect pectin molecules together by

5 Conclusion▶Added MgCl2 or KCl in place of CaCl2,
No gelation came out

Malic acid didn’t affect the hardness▶Amount of malic acid hardness of the gel

Sucrose didn’t affect the hardness▶ Amount of sucrose and hardness of the gel

The hardest was 4.0g/L of CaCl₂▶ Concentration of CaCl2 and hardness of the gel

4 Result

Mana Koide Chika Matsumaru

1 Introduction
We like Fruiche. The gel of Fruiche is made frompectin which is a polysaccharide.
▶ Pectins are divided into two groups,
LM-type and HM-type

Chosei High School

The gelation of LM pectin under several conditions



As the experiments conducted later, the onions were easy
to die and hard to grow fast.
We guess it concerns the temperature because the place
conducting these experiments is the hallway that has no
air conditioner.

In the first and second experiments, 2.4-D and IAA grew
onions faster.
In thethird
andandfourthIn thethird
experiments(thefourth experiments,
concentration
was
twice
of
the difference
first andsecond),thebetweeneachkinddifference
betweeneachkindof aqueous solutionof aqueous
solutionsbecamelittle. became
little.

Result

MethodAqueous solutions

・Spring onions
・Distilled water・Phytohormone (2.4-D, IAA, gibberellin and kinetin)・Beaker (50ml)
・Incandescent lamp
・Cardboard

Tools

About Phytohormones

Experiment A (Phytohormones)

We wondered whether the growth speed of onions ischanged by the kinds of liquids we use.

MotiveCoconut milk grew onions
faster in the warm room.
Onions were easy to growwhen they were grown in
the warm room

Water and Carbonatedwater grew onions faster.

・2.4-D is used as the herbicide. Therefore, the thicker
aqueous solution is, the slower onions grow up.
In other words, when onions grow slowly, phytohormonesor components may work as repression.
・We think that temperature is one of the reasons why
onions in water with gibberellin and kinetin didn’t growfast like we expected.
・We found the temperature concerned with the speed ofonions growth. Therefore, we want to study the relation
between temperature and growth of onions.

Conclusion

Result・Carbonated water covered with cellophane.
・Vegetable juice, Green tea and Coconut milk changd new
one at 7 a.m. and 9 p.m.
・Prohibit onions from sunlight

MethodFirst experiment
Water
Carbonated water
Vegetable juice…200ml vegetable juice / 200ml water
Green tea
…1g powder / 200ml water
Coconut milk …10g powder / 200ml water↓
Second and third experiments
Water
Carbonated water
Vegetable juice…40ml vegetable juice / 200ml water
Green tea
…1g powder / 400ml water
Coconut milk …1g powder / 400ml water

Aqueous solutions

・Spring onions
・Water・Coconuts milk powder
・Green tea powder
・Vegetable juice
・Carbonated water(without sugar)
・Cup×5・cellophane

Tools

Experiment B (Familiar aqueous solutions)

We conducted experiments to research the effects on the growth speed of spring onions by some kinds of aqueous solutions.
In the experiment A, we grew onions using water with 2.4-D, IAA, Gibberellin and Kinetin and distilled water. In theexperiment B, we grew onions using water, Carbonated water, Vegetable juice, Green tea and Coconut milk. In both of theexperiments, we measured the length of them every day.

Yuzuki Yamamoto

Milk%IngredientsResults'– Experiment'1









Tap$Water









Sokenbicha(Ingredients

Ayataka(Ingredients

Components)of)soap

Components)of)Conditioner

Components)of)Shampoo

Mugicha(IngredientsResults'– Experiment'3











Vegetable(Juice

Results'– Experiment'5

Distilled
Water

SNOW

SN OW

Ave.

Wet

Dry

Max.

Min.

DI ST IL L ED9

DI STI LL ED

The(End

Grade(2
Yuki(Enomoto &(Haruka Asaoka

Shibaura(Institute(of(Technology(High(School

Snow

Results'– Experiment'6 Snow,'Distilled'Water

plants were grown with distilled water, as the control group.

solutions, each with different components. In each experiment, one group of

have on plant growth. Six experiments were carried out using 6 different

Abstract: This experiment is aimed to study the effects that different liquids

7.7

Saki Takenaga)
LENGTH(WEIGHT( )Yuka Sano

6.7

Haruka Saito

0

Shibaura Institute of Technology Kashiwa Senior High School

Is water the best option for plants?

ᵱᶎᶐᶇᶌᶅᴾᵭᶌᶇᶍᶌᶑᴾᵤᵿᶑᶒᶃᶐᵝᴾ

5.4
3.5

5.6
3.3

Saki Mizukoshi

The Growth of Kaiware Using Different Liquids

ᵵᶆᵿᶒᴾᵩᶇᶌᶂᴾᶍᶄᴾᵟᶏᶓᶃᶍᶓᶑᴾᵱᶍᶊᶓᶒᶇᶍᶌᶑᴾᵡᵿᶌᴾᵥᶐᶍᶕᴾ ᴾ

0.3

3.7
0.3

32

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Vacuum pump

Clay

Plastic bags

Disposable body warmers

3 thermometers

An oxygen sensor

3 water tanks*TOOL*

and alive.

In low oxygen density, Drosophilas won’t be big

bigger than in normal density, but die.

In high oxygen density, Drosophilas will be*HYPOTHESIS*ᶒᶍᴾᶂᶍᴾᶕᶇᶒᶆᴾᶍᶖᶗᶅᶃᶌᴾᶂᶃᶌᶑᶇᶒᶗᵌᴾ

A hypothesis says creatures’ size have ᶑᶍᶋᶃᶒᶆᶇᶌᶅᴾ

ᵬᵭᵰᵫᵟᵪ: 2.4mm
ᵪᵭᵵ: 2.6mm
ᵪᵭᵵ: 1.2mg

・To test by using another creatures.

ex) Low→High High→Low

・To change density of oxygen.

density.

・ Drosophilas’ growth has to do with oxygen*CONSIDERATION AND TASKS*

ᵦᵧᵥᵦ: 2.5mm
ᵬᵭᵰᵫᵟᵪ: 1.10mg

Average sizeᵪᵭᵵ: 2.5mm

ᵬᵭᵰᵫᵟᵪ: 2.2mm

ᵦᵧᵥᵦ: 2.6mm

Average size

ᵦᵧᵥᵦ: 0.94mg

Average weight<Children>ᵪᵭᵵ: 1.10mg

ᵬᵭᵰᵫᵟᵪ: 0.85mg

ᵦᵧᵥᵦ: 0.94mg

Average weight<Parents>*RESULT*3. To measure and weigh Drosophilas.

2. To raise Drosophilas.

It uses oxygen!
ᵦᵧᵥᵦ: Put oxygen in a water tank.

ᵿᶀᶍᶓᶒᴾᵏᵎᶁᶋᵌᴾᵭᶖᶗᶅᶃᶌᴾᶂᶃᶌᶑᶇᶒᶗᴾᶕᵿᶑᴾᶆᶇᶅᶆᶃᶐᴾᶒᶆᵿᶌᴾᶌᶍᶕᵌᴾ

2Fe+O2→2FeO

ᵪᵭᵵ: Put body wormer in a water tank.

[Detailed Means]

1. To make device to keep oxygen density.

*METHODOLOGY*ᶂᶐᵿᶅᶍᶌᶄᶊᶗᴾ ᶇᶌᴾ ᵨᵿᶎᵿᶌᵊᴾ ᵟᶌᶍᶒᶍᶅᵿᶑᶒᶃᶐᴾ ᶑᶇᶃᶀᶍᶊᶂᶇᶇᴾ ᶕᵿᶑᴾ

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ᵵᵦᵷᵝᴾ ᵵᶃᴾ ᶒᶆᶍᶓᶅᶆᶒᴾ ᵿᶌᶂᴾ ᶑᶒᶓᶂᶇᶃᶂᴾ ᶒᶆᶃᴾ ᵿᶌᶁᶇᶃᶌᶒᴾᴾᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ Watanabe Nakazawa Someya

ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᴾ ᶀᶗᴾᵡᶆᵿᶌᶅᶇᶌᶅᴾᵭᶖᶗᶅᶃᶌᴾᵢᶃᶌᶑᶇᶒᶗᴾ ᴾ

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we’ll study and making experiments.

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(B) Whether there exists some r such that the setof {rn } is dense.

Let r be a positive irrational number and a, b bewrong. Since if r < 1, rn < 1 and rn is a monoton-

We can easily obtain that this statement is

a < {rn } < breal numbers with 0 < a < b < 1.
Then, there exists some positive integer n such that(A) r = π

REMAINING PROBLEM

function) such that f (r) = 0 and the degree of f isminimal.
Given convergence of {r n } as n → ∞, then |t| <1 for any root t of f (t) = 0 except r.

Let r > 1 be a real number. Suppose that there
exists some integral expression f (not a constant

STATEMENTOur study shows this.

√√Suppose that r > 1. Since (2+ 2)n +(2− 2)n is√ n
an integer and (2− 2) < 1 for any positive integer√√n, we can get that {(2 + 2)n } = 1 − (2 − 2)n .
√Hence r = 2 + 2 is a counter example.

ically decreasing function, so is {rn }.

We arranged this theorem like that.

1
If s < t, since {(t − s)r} < , there exists someN
integer c such that a < {c(t − s)r} < b. The secondcase can be proven like the first case.

for some integer k.

k+1
k< {sr} < {tr} <NN

integers s, t such that1<
PROOF. Let N be an integer such thatb−a
N . By Pegionhole Principle, we can choose positivea real number x.

Explanation: Let {x} denote the decimal part ofa < {nr} < breal numbers with 0 < a < b < 1.
Then, there exists some positive integer n such that

Let r be a positive irrational number and a, b be

FACT(Kronecker’s Approximation Theorem)

Shibaura Institute of Technology Kashiwa high school 2th grade
YAJIMA Tomoaki KATO Taiki KAWAZU Akihiro KEITOKU Ryo㻹㼍㼠㼑㼞㼕㼍㼘
㻱㼓㼓㻙㼣㼔㼕㼠㼑 㼛㼒 㼏㼔㼕㼏㼗㼑㼚㻹㼑㼠㼔㼛㼐
①㻯㼛㼛㼗㼕㼚㼓㻌㼑㼓㼓㼟㻌㼎㼥㻌㼒㼛㼡㼞㻌㼐㼕㼒㼒㼑㼞㼑㼚㼠㻌㼙㼑㼠㼔㼛㼐㻘㻌㻌㼟㼛㼒㼠㻙㼎㼛㼕㼘㼑㼐㻌㻘㻌㼔㼍㼞㼐㻙㼎㼛㼕㼘㼑㼐㻘㻌㼐㼕㼞㼑㼏㼠㼘㼥㻌㼎㼛㼕㼘㼑㼐㻌㼕㼚㻌㼔㼛㼠㻌㼣㼍㼠㼑㼞㻘㻌㼟㼛㻌㼏㼍㼘㼘㻌㼜㼛㼍㼏㼔㼑㼐㻌㼑㼓㼓㻘㻌㼛㼞㻌㼒㼞㼕㼑㼐㻚②㻰㼕㼟㼟㼛㼘㼢㼑㻌㼏㼛㼛㼗㼑㼐㻌㼑㼓㼓㻙㼣㼔㼕㼠㼑㻌㼎㼥㻌㼙㼍㼟㼔㻌㼕㼚㻌㻼㼔㼛㼟㼜㼔㼍㼠㼑㻌㼎㼡㼒㼒㼑㼞㼑㼐㻌㼟㼍㼘㼕㼚㼑㻚③㻾㼑㼍㼏㼠㻌㼠㼞㼥㼜㼟㼕㼚㻌㼠㼛㻌㼏㼛㼛㼗㼑㼐㻙㼑㼓㼓㻙㼣㼔㼕㼠㼑㻌㼟㼜㼑㼏㼕㼙㼑㼚㼟㻌㻜㻌㼠㼛㻌㻢㻜㻌㼙㼕㼚㼡㼠㼑㼟㻌㼍㼠㻌㻟㻣㻌㼐㼑㼓㼞㼑㼑㻚④㻭㼚㼍㼘㼥㼦㼑㻌㼑㼓㼓㻙㼣㼔㼕㼠㼑㻌㼜㼞㼛㼠㼑㼕㼚㼟㻌㼎㼥㻌㻿㻰㻿㻙㻼㻭㻳㻱㻚・㻯㼛㼛㼗㼕㼚㼓㻌㼙㼑㼠㼔㼛㼐㼟㻌㼛㼒㻌㼑㼓㼓㻌㼏㼔㼍㼚㼓㼑㼟㻌㼞㼍㼠㼕㼛㻌㼛㼒㻌㼑㼓㼓㻙㼍㼘㼘㼑㼞㼓㼥㻌㼛㼚㼟㼑㼠㻚㻌㻭㼏㼏㼛㼞㼐㼕㼚㼓㻌㼠㼛㻌㼠㼔㼕㼟㻌㼛㼎㼟㼑㼞㼢㼍㼠㼕㼛㼚㻘㻌㼔㼑㼍㼠㻌㼐㼑㼚㼍㼠㼡㼞㼍㼠㼕㼛㼚㻌㼛㼒㻌㼑㼓㼓㻌㼜㼞㼛㼠㼑㼕㼚㻌㼐㼡㼞㼕㼚㼓㻌㼏㼛㼛㼗㼕㼚㼓㻌㼜㼞㼛㼎㼍㼎㼘㼥㻌㼐㼕㼒㼒㼑㼞㼑㼚㼠㻌㼒㼞㼛㼙㻌㼑㼍㼏㼔㻌㼏㼛㼛㼗㼕㼚㼓㻌㼙㼑㼠㼔㼛㼐㻚㻌㻭㼚㼐㻌㼠㼔㼑㼟㼑㻌㼐㼕㼒㼒㼑㼞㼑㼚㼏㼑㻌㼙㼍㼥㻌㼍㼒㼒㼑㼏㼠㻌㼠㼔㼑㻌㼜㼞㼛㼠㼑㼍㼟㼑㻌㼐㼕㼓㼑㼟㼠㼕㼛㼚㻌㼕㼚㻌㼐㼕㼓㼑㼟㼠㼕㼢㼑㻌㼛㼞㼓㼍㼚㼟㻚㻌・ 㻵㼚㻌㼠㼔㼕㼟㻌㼟㼠㼡㼐㼥㻘㻌㼟㼑㼚㼟㼕㼠㼕㼢㼕㼠㼥㻌㼛㼒㻌㼠㼞㼥㼜㼟㼕㼚㻌㼐㼕㼓㼑㼟㼠㼕㼛㼚㻌㼠㼛㻌㼔㼑㼍㼠㻙㼐㼑㼚㼍㼠㼡㼞㼑㼐㻌㼑㼓㼓㻌㼜㼞㼛㼠㼑㼕㼚㼟㻌㼎㼥㻌㼟㼑㼢㼑㼞㼍㼘㻌㼏㼛㼛㼗㼕㼚㼓㻌㼙㼑㼠㼔㼛㼐㼟㻌㼣㼍㼟㻌㼑㼤㼍㼙㼕㼚㼑㼐㻚㻭㼎㼛㼡㼠㻌㼑㼓㼓㻌㼍㼘㼘㼑㼞㼓㼥・㼀㼥㼜㼑㻌㻵㻌㼍㼘㼘㼑㼞㼓㼥㻌㼕㼟㻌㼏㼍㼡㼟㼑㼐㻌㼎㼥㻌㻵㼓㻱 㼍㼚㼠㼕㼎㼛㼐㼥㻌㼣㼔㼕㼏㼔㻌㼞㼑㼍㼏㼠㻌㼠㼛㻌㼟㼑㼢㼑㼞㼍㼘㻌㼑㼚㼢㼕㼞㼛㼚㼙㼑㼚㼠㼍㼘㻌㼟㼡㼎㼟㼠㼍㼚㼏㼑㼟㻌㼟㼡㼏㼔㻌㼍㼟㻌㼑㼓㼓㻌㼜㼞㼛㼠㼑㼕㼚㼟㻚㻌・㻻㼚㼟㼑㼠㻌㼛㼒㻌㼑㼓㼓㻌㼍㼘㼘㼑㼞㼓㼥㻌㼟㼔㼛㼣㼟㻌㼙㼍㼚㼥㻌㼟㼥㼙㼜㼠㼛㼙㼟㻌㼕㼚㼏㼘㼡㼐㼕㼚㼓㻌㼢㼛㼙㼕㼠㼕㼚㼓㻌㼍㼚㼐㻌㼐㼕㼍㼞㼞㼔㼑㼍㻚㻌㻹㼛㼞㼑㼛㼢㼑㼞㻘㻌㼟㼛㼙㼑㼠㼕㼙㼑㼟㻌㼕㼠㻌㼏㼍㼡㼟㼑㼟㻌㼍㼚㼍㼜㼔㼥㼘㼍㼏㼠㼕㼏㻌㼟㼔㼛㼏㼗㻌㼍㼚㼐㻌㼠㼔㼑㼚㻌㼐㼕㼑㻌㼣㼕㼠㼔㼛㼡㼠㻌㼜㼞㼛㼜㼑㼞㻌㼠㼞㼑㼍㼠㼙㼑㼚㼠㻚㻌・㻱㼓㼓㻌㼍㼘㼘㼑㼞㼓㼥㻌㼏㼍㼡㼟㼑㼐㻌㼎㼥㻌㻵㼓㻱 㼍㼚㼠㼕㼎㼛㼐㼥㻌㼣㼔㼕㼏㼔㻌㼞㼑㼍㼏㼠㻌㼠㼛㻌㼑㼓㼓㻙㼣㼔㼕㼠㼑㻌㼜㼞㼛㼠㼑㼕㼚㼟㻘㻌㼟㼡㼏㼔㻌㼍㼟㻌㼛㼢㼛㼙㼡㼏㼛㼕㼐 㼍㼚㼐㻌㼛㼢㼍㼘㼎㼡㼙㼕㼚㻚㻌㼀㼔㼑㼞㼑㼒㼛㼞㼑㻌㼕㼒㻌㼑㼓㼓㻌㼜㼞㼛㼠㼑㼕㼚㼟㻌㼍㼞㼑㻌㼐㼕㼓㼑㼟㼠㼑㼐㻌㼏㼛㼙㼜㼘㼑㼠㼑㼘㼥㻌㼠㼛㻌㼍㼙㼕㼚㼛㻌㼍㼏㼕㼐㻘㻌㼞㼍㼠㼕㼛㻌㼛㼒㻌㼍㼘㼘㼑㼞㼓㼥㻌㼍㼚㼠㼕㼏㼕㼜㼍㼠㼑㻌㼠㼛㻌㼞㼑㼐㼡㼏㼑㻚㻮㼍㼏㼗㼓㼞㼛㼡㼚㼐・㻹㼍㼚㼥㻌㼏㼔㼕㼘㼐㼞㼑㼚㻌㼟㼡㼒㼒㼑㼞㼑㼐㻌㼎㼥㻌㼒㼛㼛㼐㻌㼍㼘㼘㼑㼞㼓㼥㻘㻌㼑㼟㼜㼑㼏㼕㼍㼘㼘㼥㻌㼑㼓㼓㻙㼍㼘㼘㼑㼞㼓㼥㻌㼕㼚㻌㻶㼍㼜㼍㼚㻚 㻱㼓㼓㻙㼍㼘㼘㼑㼞㼓㼥㻌㼕㼟㻌㼟㼑㼞㼕㼛㼡㼟㻌㼐㼕㼟㼑㼍㼟㼑㻌㼠㼔㼍㼠㻌㼙㼍㼥㻌㼏㼍㼡㼟㼑㻌㼒㼍㼠㼍㼘㻌㼟㼥㼙㼜㼠㼛㼙㻘㻌㼟㼛㻌㼏㼍㼘㼘㻌㼍㼚㼍㼜㼔㼥㼘㼍㼏㼠㼕㼏㻌㼟㼔㼛㼏㼗㻚㻌㻌
Therefore, it’s very useful if preventive methods of egg㻙㼍㼘㼘㼑㼞㼓㼥㻌㼍㼞㼑㻌㼑㼟㼠㼍㼎㼘㼕㼟㼔㼑㼐㻌㼒㼛㼞㻌㼠㼔㼛㼟㼑㻌㼏㼔㼕㼘㼐㼞㼑㼚㻚《㻴㼥㼜㼛㼠㼔㼑㼟㼕㼟㻦㻌㻰㼕㼒㼒㼑㼞㼑㼚㼏㼑㻌㼛㼒㻌㼔㼑㼍㼠㻌㼐㼑㼚㼍㼠㼡㼞㼑㻌㼛㼒㻌㼑㼓㼓㻌㼜㼞㼛㼠㼑㼕㼚㻌㼎㼥㻌㼏㼛㼛㼗㼕㼚㼓㻌㼙㼑㼠㼔㼛㼐㼟㻌㼍㼒㼒㼑㼏㼠㻌㼠㼛㻌㼠㼞㼥㼜㼟㼕㼚㻌㼐㼕㼓㼑㼟㼠㼕㼛㼚㻌㼑㼒㼒㼕㼏㼕㼑㼚㼏㼥㻌》

㼃㼔㼥㻌㼏㼛㼛㼗㼕㼚㼓㻌㼙㼑㼠㼔㼛㼐㼟㻌㼍㼒㼒㼑㼏㼠㻌㼠㼛㻌㼍㼚㼠㼕㼓㼑㼚㼕㼏㼕㼠㼥㻌㼛㼒㻌㼑㼓㼓㻌㼜㼞㼛㼠㼑㼕㼚㻫㻼㼡㼞㼜㼛㼟㼑

Decrease:80,75,40,14(kD)
Increase:22,20(kD)

Decrease:80,75(kD)

Decrease:80,75,40,14(kD)
Increase:22,20(kD)

㻝㻜㻌

㻝㻡㻌

㻞㻡㻜
㻝㻡㻜
㻝㻜㻜
㻣㻡
㻡㻜
㻟㻣
㻞㻡
㻞㻜

Decrease:40,14(kD)
Increase:22,20,12(kD)㻿㼡㼚㼚㼥㻌㼟㼕㼐㼑㻌㼡㼜

㻞㻡
㻞㻜
㻝㻡㻌
㻝㻜㻌

㻟㻣

㻞㻡㻜
㻝㻡㻜
㻝㻜㻜
㻣㻡
㻡㻜

㻼㼛㼍㼏㼔㼑㼐㻌㼑㼓㼓㻾㼑㼒㼑㼞㼑㼚㼏㼑㻌㼛㼒㻌㼒㼛㼛㼐㻌㼍㼘㼘㼑㼞㼓㼥㻌㼐㼕㼍㼓㼚㼛㼟㼕㼟㻌㻞㻜㻝㻠㻚㻌㻹㼕㼚㼕㼟㼠㼞㼥㻌㼛㼒㻌㻴㼑㼍㼘㼠㼔㻘㻌㻸㼍㼎㼛㼡㼞㻌㼍㼚㼐㻌㼃㼑㼘㼒㼍㼞㼑㻹㻚㻌㻻㼗㼍㼐㼍㻘㻌㼑㼠㻚㼍㼘㻚㻘㻌㻞㻜㻝㻝㻘㻌㻺㼛㼠㼑㻌㼒㼛㼞㻌㼜㼞㼛㼠㼑㼕㼚㻌㼍㼚㼍㼘㼥㼟㼕㼟㻌㼑㼤㼜㼑㼞㼕㼙㼑㼚㼠㻚㻌㼅㼛㼐㼛㼟㼔㼍㻷㻚㻌㻴㼍㼓㼕㼣㼍㼞㼍㻌㼍㼚㼐㻌㼀㻚㻌㼀㼍㼐㼍㻌㻞㻜㻝㻠㻘㻌㻲㼡㼚㻌㼠㼛㻌㼘㼑㼍㼞㼚㻌㻵㼙㼙㼡㼚㼛㼘㼛㼓㼥㻚㻌㻷㼛㼡㼐㼍㼚㼚㼟㼔㼍㻾㼑㼒㼑㼞㼑㼚㼏㼑㼟㻦Compering sensitivity to trypsin digestion, hard-boiled egg showed
higher degradation ratio than other methods.

㻟㻣
㻞㻡
㻞㻜
㻝㻡㻌

㻡㻜

㻞㻡㻜
㻝㻡㻜
㻝㻜㻜
㻣㻡

㻿㼛㼒㼠㻙㼎㼛㼕㼘㼑㼐㻌㼑㼓㼓

㻝㻜㻌

㻞㻜
㻝㻡㻌

㻞㻡㻜
㻝㻡㻜
㻝㻜㻜
㻣㻡
㻡㻜
㻟㻣
㻞㻡

㻴㼍㼞㼐㻙㼎㼛㼕㼘㼑㼐㻌㼑㼓㼓㻾㼑㼟㼡㼘㼠㼟

㻿㼑㼚㼟㼕㼠㼕㼢㼕㼠㼥㻌㼛㼒㻌㼠㼞㼥㼜㼟㼕㼚㻌㼐㼕㼓㼑㼟㼠㼕㼛㼚㻌㼛㼒㻌㼑㼓㼓㻙㼣㼔㼕㼠㼑㻌㼏㼔㼍㼚㼓㼑㼐㻌㼎㼥㻌㼕㼠㼟㻌㼏㼛㼛㼗㼕㼚㼓㻌㼙㼑㼠㼔㼛㼐㼟㻱㼟㼜㼑㼏㼕㼍㼘㼘㼥㻘㻌㻌㼔㼍㼞㼐㻙㼎㼛㼕㼘㼑㼐㻌㼑㼓㼓㻌㼟㼜㼑㼏㼕㼙㼑㼚㻌㼐㼑㼓㼞㼍㼐㼑㻌㼑㼒㼒㼕㼏㼕㼑㼚㼠㼘㼥㻌㼎㼥㻌㼠㼞㼥㼜㼟㼕㼚㻌㼠㼞㼑㼍㼠㼙㼑㼚㼠㻚㻌㼀㼔㼑㼞㼑㼒㼛㼞㼑㻘㻌㼏㼛㼙㼜㼘㼑㼠㼑㻌㼔㼑㼍㼠㻌㼐㼑㼚㼍㼠㼡㼞㼍㼠㼕㼛㼚㻌㼟㼡㼓㼓㼑㼟㼠㼑㼐㻌㼠㼛㻌㼎㼑㻌㼕㼙㼜㼛㼞㼠㼍㼚㼠㻌㼠㼛㻌㼐㼕㼓㼑㼟㼠㻌㼜㼞㼛㼠㼑㼕㼚㼟㻚㻯㼛㼚㼏㼘㼡㼟㼕㼛㼚㻿㼍㼥㼛㼞㼕 㻵㼏㼔㼕㼖㼛㻘㻌㻌㼀㼛㼔㼛 㼁㼚㼕㼢㼑㼞㼟㼕㼠㼥 㼍㼠㼠㼍㼏㼔㼑㼐 㼀㼛㼔㼛 㻴㼕㼓㼔 㼟㼏㼔㼛㼛㼘㻹㼛㼘㼑㼏㼡㼘㼍㼞㻌㼣㼑㼕㼓㼔㼠㻌㻹㼛㼘㼑㼏㼡㼘㼍㼞㻌㼣㼑㼕㼓㼔㼠The Decimal Parts of Powers㻰㼕㼒㼒㼑㼞㼑㼚㼠㼕㼍㼘 㼟㼑㼚㼟㼕㼠㼕㼢㼕㼠㼥 㼛㼒 㼠㼞㼥㼜㼟㼕㼚 㼐㼕㼓㼑㼟㼠㼕㼛㼚㻌㼛㼒㻌㼑㼓㼓㻌㼜㼞㼛㼠㼑㼕㼚㼟㻌㼏㼍㼡㼟㼑㼐㻌㼎㼥 㼕㼠㼟㻌㼏㼛㼛㼗㼕㼚㼓㻌㼙㼑㼠㼔㼛㼐㼟㻹㼛㼘㼑㼏㼡㼘㼍㼞㻌㼣㼑㼕㼓㼔㼠㻹㼛㼘㼑㼏㼡㼘㼍㼞㻌㼣㼑㼕㼓㼔㼠

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






























 +  ≠   ≥ 




















































































