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⎇ ⓥ ⺰ ᢥ ᛞ ㍳

㧔2005ᐕ㧝᦬㨪12᦬㧕

‛⾰↢๮ℂᎿቇ⑼M. Yamaguchi, R. Saito, K. Utsumi, A. Ochiai, N.

hydro-2-thioxo-4-(p-nitrophenyl)-(6a) and bis

Acid-p-Aminophenylalanine-Hydroxybenzoic Acidthiazololato]zinc(II) (6b) substantially lowered

Kawashima, Y. Tokuoka, and A. Katoh㧦“The Nicotinic[2,3-dihydro-2-thioxo-4-(p-chlorophenyl)-3the blood glucose levels in KK-Ay mice.

Triads Induces Apoptosis in Human Leukemia U937
Cells”, Heterocycles, Vol.71, No.7, 1503-1508, 2007.7

glucose tolerance tests for 6a and 6b indicated theimprovement of the diabetic states of animals.

㇌ᢥ㗴⋡㧦࠾ࠦ࠴ࡦ㉄㧙p㧙ࠕࡒࡁࡈࠚ࠾࡞ࠕ࡜࠾ࡦ㧙ࡅ࠼ࡠࠠࠪ቟ᕷ㚅㉄ਃߟ⚵ߪࡅ࠻⚵❱⃿ᕈ⣲≌⚦⢩U937ߦࠕࡐ࠻࡯ࠪࠬࠍ⺃ዉߔࠆ The nicotinic acid-p-aminophenylalanine-hy
droxybenzoic acid triads were newly synthesizedfrom p-aminophenylalanine methyl ester via 4
steps, and they induced apoptosis in human leukemia U937 cells.

The number of hydroxyl

group on benzoic acid apparently affected uponY. Matsumura and A. Katoh㧦“Synthesis of 2,3- Dimorpholino-6-aminoquinoxaline Derivatives and Ap-

plication to a New Intramolecular Fluorescent Probe”,
J. Lumin., Vol. 128, pp.625-630, 2008.2.

㇌ᢥ㗴⋡㧦2,3-ࠫࡕ࡞ࡎ࡝ࡁ-6-ࠕࡒࡁࠠࡁࠠࠨ࡝ࡦ⺃ዉ૕ߩวᚑߣߘߩᣂⷙಽሶౝⰯశࡊࡠ࡯ࡉ߳ߩᔕ↪

 Two fluorescent monomers having a quinoxa-

the apoptosis- inducing activity.

line

monomer were synthesized and their fluorescence
properties investigated. The fluorescent mono-

Activities”, Heterocycles, Vol.73, 603-615, 2007.12.

㇌ᢥ㗴⋡㧦S2O2㈩૏᭽ᑼࠍ߽ߟ3-ࡅ࠼ࡠࠠࠪ-4-(p-⟎឵)

mers showed intense solvatochromism in theirfluorescence. The wavelength at the maximumࡈࠚ࠾࡞࠴ࠕ࠱࡯࡞-2(3H)-࠴ࠝࡦ㘃ߩࠝࠠ࠰ࡃ࠽ࠫ࠙

fluorescence intensity of the QxAlaMA-labeledࡓ(IV)෸߮ࠫࡦࠢ(II)㍲૕ߩวᚑߣߘࠇࠄߩࠗࡦࠬ࡝ࡦ

PNIPAM dramatically blue-shifted and the fluo-᭽ᵴᕈrescence intensity of the QxA-labeled PNIPAM

 Oxovanadium(IV) and zinc(II) complexes

significantly increased around the transition

with five kinds of 3-hydroxy-4-(p-substituted)-

temperature.

phenylthiazole-2(3H)-thiones as bidentate ligands

centcomplexes

sense

and

reportthestrated to be applicable to new intramolecular

positive control. Oxovanadium(IV) complexes also

fluorescent probes.

exhibited in vitro insulin-mimetic activities, inAmong zinc(II) complexes, bis [2,3-di-canwater. Both QxAlaMA and QxA were demon-

insulin-mimetic activities than that of ZnSO4 as afound.

dyes

It was found that these fluores-

thermo-responsive behavior of the PNIPAM in

showed approximately 15 times higher in vitro

Hammett’s constant of the substituent R was

N-(1-(2,3-dimor(NIPAM) and a small amount of a fluorescent

S2O2 Coordination Mode and Their Insulin-Mimetic

which a correlation between the activity and theandresponsive copolymers of N-isopropylacrylamide-4-(p-substituted)phenylthiazole-2(3H)-thiones with aZinc(II)(QxA)

lamide (QxAlaMA), were synthesized. Thermo -dium(IV) and Zinc(II) Complexes of 3-Hydroxysynthesized.

N-(2,3-dimorpholinoquinoxalin-

pholinoquinoxalin-6-ylamino)prop-2-yl) methacry

Sakurai, and A. Katoh 㧦 “Synthesis of Oxo- vana-

newlyskeleton,6-yl)acrylamide

M. Yamaguchi, R. Saito, Y. Adachi, Y. Yoshikawa, H.

were

Oral

R. Saito, S. Machida, S. Suzuki, and A. Katoh 㧦“Synthesis and Spectroscopic Properties of 2,5-Bis

㧙㧙(benzoazol-2-yl)pyrazines”, Heterocycles, Vo. 75, No. 3,

activity ratios were determined by the application㇌ᢥ㗴⋡㧦2,5-ࡆࠬ㧔ࡌࡦ࠱ࠕ࠱࡯࡞-2-ࠗ࡞㧕ࡇ࡜ࠫࡦ

Fineman-Ross (r1=0.392 ± 0.006, r2 = 0.358 ±of conventional linearization methods such as

pp.531-536, 2008.3

0.007, Kelen-Tudos (r1= 0.398 ± 0.004, r2= 0.365 ±㘃ߩวᚑߣಽశቇ⊛ᕈ⾰0.013) and extended Kelen-Tudos methods (r1=

 A class of p-conjugated 2,5-bis(benzoazol-2-yl)

0.394 ± 0.004, r2= 0.352 ± 0.006).

pyrazine dyes have been synthesized in which
2,5-bis(benzimidazol-2-yl)pyrazine(1)

exhibits

The enhanced

P. S. Vijayanand, S. Kato, S. Satokawa and T. Ko-

plications such as anion sensing feasible uponmethacrylate; synthesis, characterization, monomer

strong fluorescence in solution.

fluorescence of 1 with a base leads to future apchemical modification.

P. S. Vijayanand, S. Kato, S. Satokawa, T. Kojima㧦“Copolymerization of 4-biphenyl methacrylate withglycidyl methacrylate: Synthesis, Charceterization,

thermal properties and determination of monomer

jima㧦“Homopolymer and copolymers of with glycidyl

reactivity ratios and thermal properties”, European
Polymer journal, 43, pp.2046-2056, 2007.5

㇌ᢥ㗴⋡㧦4-nitro 3-methylphenyl methacrylateߩ㊀วߣglycidyl methacrylateߣߩ౒㊀ว㧦วᚑ㧘ࠠࡖ࡜ࠢ࠲
࡝࠯࡯࡚ࠪࡦ㧘ࡕࡁࡑ࡯ᵴᕈᲧߣᾲ⊛․ᕈ

reactivity ratios”, Polymer Bulletin, vol. 58, No.5-6, pp.
861-872, 2007.5

㇌ ᢥ 㗴 ⋡ 㧦 4-biphenyl methacrylate ߣ glycidyl

methacrylateߩ౒㊀ว㧦วᚑ㧘ࠠࡖ࡜ࠢ࠲࡝࠯࡯࡚ࠪࡦ㧘ᾲ⊛․ᕈߣࡕࡁࡑ࡯ᵴᕈᲧߩ᳿ቯ

 The methacrylic monomer, 4-biphenylmethacrylate(BPM) was synthesized by reacting 4-biphenyl
phenol dissolved in ethyl methyl ketone (EMK)withmethacryloyl

chlorideinpresenceoftriethylamine as a catalyst. The copolymers of

BPM with glycidyl methacrylate (GMA) weresynthesized by free radical polymerization in

EMK solution at 70±1 °C using benzoyl peroxide
as a free radical initiator. The copolymerization

behaviour was studied in a wide composition in-terval with the mole fractions of BPM ranging
from 0.15 to 0.9 in the feed. The copolymers werecharacterized by FT-IR, 1H-NMR and 13C-NMR

spectroscopic techniques. The solubility wastested in various polar and non polar solvents.
The molecular weight and polydispersity indicesof the polymers were determined using gel permeation chromatography. The glass transition

temperature of the copolymers increases with increase in BPM content. The thermogravimetricanalysis of the polymers showed that the thermal

stability of the copolymer increases with BPM
content. The copolymer composition was deter-

mined using 1H-NMR spectra. The monomer re-㧙㧙

 The novel methacrylic monomer, 4-nitro-3methylphenyl methacrylate (NMPM) was synthesized by reacting 4-nitro-3-methylphenol dis-solved in ethyl methyl ketone (EMK) withmethacryloyl

chlorideinthepresenceoftriethylamine as a catalyst. The homopolymer
andcopolymers

of

NMPM

with

glycidylmethacrylate having different compositions weresynthesized by free radical polymerization in

EMK solution at 70 ± 1 °C using benzoyl peroxide

as free radical initiator. The homopolymer andthe copolymers were characterized by FT-IR, 1H

NMR and 13C NMR spectroscopic techniques.

The solubility tests were tested in various polarand non-polar solvents. The molecular weight andpolydispersity indices of the copolymers were de-termined using gel permeation chromatography.

The glass transition temperature of the copolymers increases with increase in NMPM content.
The thermogravimetric analysis of the polymers
performed in air showed that the thermal stabil-

ity of the copolymer increases with NMPM content. The copolymer composition was determinedusing 1H NMR spectra. The monomer reactivity

ratios were determined by the application of
conventional linearization methods such Fineman–Ross (r1 = 1.862, r2 = 0.881), Kelen–Tudos(r1 = 1.712, r2 = 0.893) and extended Kelen– Tudos methods (r1 = 1.889, r2 = 0.884).

prove these of A. aneura and E. salubris.

K. Shiono, Y. Abe, H. Tanouchi, H. Utsugi, N. Taka-More-hashi, H. Hamano, T. Kojima and K. Yamada 㧦over, E. camaldulensis showed the highest bio-

(Acacia aneura, Eucalyptus camaldulensis and E.

nonblasted plot as well as at the blasted plot.

mass production in the three tree species at the“Growth and survival of arid land forestation species

These results in this study give new information

salubris) with hardpan blasting”, J. Arid Land Stud-

about the tree survival and growth under hard-ies, 17(1), pp.11-22, 2007.6

㇌ᢥ㗴⋡㧦ੇ῎࿾ߦ߅ߌࠆࡂ࡯࠼ࡄࡦ⎕უᬀᨋᧁpan blasting forestation. These results are avail-bris㧕ߩᚑ㐳ߣ↢ሽ㧦

in the arid land having hardpan layer.

㧔Acacia aneura, Eucalyptus camaldulensis, E. salu-

 The hardpan layer which occurs near the soil

able for tree species selection for the forestation

surface is widely found in arid land around theF.H. Marga, S.A.-H.M. Abdel-Hameed, S. Kato, S.

layer is a highly compacted soil layer. Therefore,

Vickers Hardness of Modified Basalt Glass-Ceramics”,

its the planted tree growth and reduce survival㇌ᢥ㗴⋡㧦 Basaltࠍ↪޿ߚࠟ࡜ࠬ࠮࡜ࡒ࠶ࠢࠬߩࡆ࠶ࠞ

middle part of Western Australia.

Hardpanthere has been concern that hardpan layer inhibratio.

To improve the growth and to increase thesurvival of planted trees in the area having

Satokawa and T. Kojima㧦“Effect of ZrO2 addition on

J. Ceramic Soc. Jpn., 115(7), pp.429-433, 2007.7

࡯ࠬ⎬ᐲ߳ߩࠫ࡞ࠦ࠾ࠕᷝടലᨐ

 Improvement of mechanical properties of cor-

hardpan layer, a new tillage technique using dy-

dierite glass-ceramics using modified Egyptian

namite to blast hardpan layer, called hardpan

basalt rocks by addition of different amounts of

blasting, was carried out at the Sturt Meadows
station in Western Australia.

zirconia (ZrO2) was investigated. Crystallization

During 67 months,

behavior of modified basalt glass was studied by

we monitored the growth and the survival ratio of

X-ray diffraction (XRD) and scanning electron

the tree species, Acacia aneura, Eucalyptus

microscope (SEM). The Vickers hardness ofcamaldulensis and E. salubris, at the hard-glass-ceramics containing different amounts ofpan-blasted plot and the nonblasted plot (i.e.,natural condition) in the forestation site.

ZrO2

At 67

at

1050°Cforvarious

the glass-ceramics increased with in increasing

E. salubris and E. camaldulensis at the blasted

amount of transformable ZrO2, which process isplot were 46%, 54% and 20% increased than theseprobably caused by crack deflection due to theMoreover,high stress field around transformed ZrO2

the mean heights of A. aneura, E. salubris and E.
camaldulensis at the blasted plot were 13%, 10%

formedheat-treatment time was compared. Toughness ofmonth after planting, survival ratios of A. aneura,at the nonblasted plot, respectively.

andand 72% higher than in the nonblasted plot, re-Ⴎ㊁సብ, ቟ㇱᓕ㓶, ᴡේፒ㉿ሶ, ự㊁⵨ਯ, ↰ౝ⵨ਯ,aneura, E. salubris and E. camaldulensis wereࡄࡦ⎕⎈࿯ფߦᬀᨋߐࠇߚ᮸ᧁߩ᳓Ḯᷓᐲߩផቯ‫ޠ‬᳓ᢥ࡮the nonblasted plot, the growth rate of A. aneura, ࡂ࡯࠼ࡄࡦ⎕⎈ࠍ઻ߞߚᬀᨋᴺߩߚ߼ߩㆡ⒳ㆬᛮ

and 0.17 [kg month-1], respectively.

㊀ⷐߢ޽ࠆ‫ࡦࡄ࠼࡯ࡂޕ‬⎕⎈ߦࠃࠆᚑ㐳ᡷༀߦߪ⒳spectively.

At the blasted plot, growth rate of A.

0.17, 0.05 and 1.26 [kg month-1], respectively.

Atዊፉ♿ᓼ, ጊ↰⥝৻㧦‫⚛㉄ޟ‬቟ቯห૏૕ಽᨆߦࠃࠆࡂ࡯࠼
᳓⾗Ḯቇળ⹹㧘20(5)㧘pp.409-423 ,2007.9

E. salubris and E. camaldulensis were 0.12, 0.03

ߪ㧘ࡂ࡯࠼ࡄࡦ߇ಽᏓߔࠆੇ῎࿾ߢߩᬀᨋߩᚑഞߦ

camaldulensis showed a significantly higherࠆ߇㧘Acacia aneuraߢߪᡷༀߐࠇߥ޿‫ߩߎޕ‬ේ࿃

Only, E.

mean of aboveground biomass (W2005) and rela-㑆Ꮕ߇޽ࠅ㧘Eucalyptus camaldulensisߢᡷༀߐࠇ

tive growth rate (RGR) at the blasted plot than atߣߒߡ㧘ࡂ࡯࠼ࡄࡦ⎕⎈ߦࠃࠅ࿯ფ᳓ಽ⁁ᘒ߇ᡷༀsuggested that hardpan blasting improved theࠇߡ޿ߚ‫⎇ᧄޕ‬ⓥߢߪ㧘ࡂ࡯࠼ࡄࡦ⎕⎈඙ߣ㕖⎕⎈

There resultsߐࠇߚᷓ޿࿯ጀࠍ᳓Ḯߣߔࠆ⢻ജߩ⒳㑆Ꮕ߇੍ᗐߐ

growth of E. camaldulensis, however, did not im-඙㧔⥄ὼ⁁ᘒ㧕ߦ߅ߌࠆ㧘ἠṴ೨ᓟߩᷓᐲ೎ߩ࿯ფ

the nonblasted plot (P<0.05).

㧙㧙

૕Ⓧ฽᳓₸ߩ᷹ቯߣ㧘࿯ფߣᬀᨋᧁߩ᛽಴᳓㧘ἠṴ᳓㧘੗ᚭ᳓ߩ㉄⚛቟ቯห૏૕Ყߩಽᨆߦࠃࠅ㧘2᮸

tios”, Polymer Bulletin, 59, pp. 469-480, 2007.11

㇌ ᢥ 㗴 ⋡ 㧦 4-cyanophenyl methacrylate ߣ Methyl⒳ߩਥߥ᳓Ḯߩᷓߐࠍផቯߒߚ‫ޕ‬㕖⎕⎈඙ߢߪ㧘ਔ

᮸⒳ߣ߽ߦ㧘ෘ޿ࡂ࡯࠼ࡄࡦጀߩ޽ࠆᷓᐲ20 [cm]Methacrylateߩ౒㊀ว㧦วᚑ㧘ࠠࡖ࡜ࠢ࠲࡝࠯࡯࡚ࠪࡦ㧘ࠃࠅ߽ᵻ޿࿯ጀࠍਥߥ᳓Ḯߣߒߡ߅ࠅ㧘ἠṴ೨ߩߎᾲ⊛․ᕈߣࡕࡁࡑ࡯ᵴᕈᲧߩ᳿ቯ

ߩ࿯ጀߪੇ῎ߒߡ޿ߚ‫ߒ߆ߒޕ‬㧘ἠṴ೨ߦ߽㧘⎕⎈ A novel methacrylic monomer, 4-cyanophenylߚ‫ޕ‬⎕⎈඙ߩE. camaldulensisߪ㧘ߎߩᷓᐲ100 [cm]4-cyanophenol dissolved in methyl ethyl ketone

඙ߩᷓᐲ100 [cm] ࠃࠅᷓ޿࿯ጀߪḨẢ⁁ᘒߦ޽ߞ

methacrylate (CPM) was synthesized by reactingࠃࠅ߽ᷓ޿࿯ጀߩ᳓ࠍਥߥ᳓Ḯߣߒߡ޿ߚ‫ߒ߆ߒޕ‬㧘(MEK) with methacryloyl chloride in the presenceࠍਥߥ᳓Ḯߣߒߡ߅ࠅ㧘ᷓ޿࿯ጀߩ᳓ࠍ᦭ല೑↪ߒ

CPM with methyl methacrylate(MMA) at differ-

A. aneuraߪ⎕⎈඙ߢ߽ᷓᐲ100 [cm] ࠃࠅᵻ޿࿯ጀ

of triethylamine as a catalyst. Copolymers ofߡ޿ߥ߆ߞߚ‫⎇ᧄޕ‬ⓥߦࠃࠅ㧘ᷓ޿࿯ጀ㧔>100ent composition was prepared by free radical so-࡯࠼ࡄࡦ⎕⎈ߦࠃࠅᚑ㐳ᡷༀߐࠇࠆߎߣ߇ផኤߢ߈

peroxide as initiator. The copolymers were char-[cm] 㧕ߩ᳓ࠍਥߥ᳓Ḯߣߒߡ೑↪ߢ߈ࠆ᮸⒳ߪ㧘ࡂ

lution polymerization at 70±1 °C using benzoyl
acterized by FT-IR, 1H-NMR and 13C-NMRߚ‫ޕ‬

spectroscopic techniques. The solubility of theT. A. Gad-Allah, S. Kato, S. Satokawa, T. Kojima㧦polymers was tested in various polar and non
polar“Role of core diameter and silica content in photo-㇌ᢥ㗴⋡㧦TiO2/SiO2/Fe3O4 ࠦࡦࡐࠫ࠶࠻ߩశ⸅ᇦᵴᕈhave

MMA content. The thermal stability of the co-

TiO 2/SiO 2/Fe 3O 4

been

preparedpolymer increases with increases in mole fractionof CPM content in the copolymer. The copolymer

bycomposition was determined by using 1H-NMR

solegeltechnique for both silica and titania coat-

spectroscopy. The monomer reactivity ratios es-

ings. Energy dispersive X-ray fluorescence (EDX),

timated by the application of linearization meth-

X-ray diffraction (XRD), X-ray photoelectron

ods such as Fineman-Ross (r1=2.524±0.038,

spectroscopy(XPS), BET surface area analysis

r2=0.502±0.015), Kelen-Tudos (r1=2.562±0.173,

and scanning electron microscope (SEM) have

r2=0.487±0.005)

been used for characterization of prepared sam-ples has been investigated by photodegradation of
25e45 mm core diameter exhibits the maximum

andextended

Kelen-Tudos

methods (r1=2.735±0.128, r2=0.4915±0.007).

ples.Photocatalytic activity of the prepared sammethyl orange. Obtained results have shown thatandmers increases with increase in mole fraction ofcomposites of different core (Fe3O4) diameters andcontents

weight

The glass transition temperature of the copoly-ߦ߅ߌࠆᩭᓘ߅ࠃ߮ࠪ࡝ࠞ฽᦭ಽߩᓎഀ

silicamoleculartermined using gel permeation chromatography.

State Sciences, 9, pp.737-743, 2007.9

separable

The

polydispersity indices of the copolymers were de-catalytic activity of TiO2/SiO2/Fe3O4 composite”, Solid Magneticallysolvents.

ၳ 㓷ᢥ㧘⧯ᨋ ᵗ㧘⮮੗㓉ᄦ㧘ዊፉ♿ᓼ㧦‫ࡓ࠳ޟ‬ၸⓍ‛

activity since it possesses a convenient surfaceߩህ᳇ᕈಽ⸃ㅦᐲߩ᷹ቯߣᔅⷐឃ⍾㗫ᐲߩផቯ‫ޠ‬㧘ⅣႺᛛ

significant effect on the activity of composite. Sil- ᧄ⎇ⓥߢኻ⽎ߣߒߚንጊ⋵㤥ㇱᎹ಴ߒᐔ࠳ࡓߥߤ

catalyst activity because of the increase in parti-ႍႇߦᑪ⸳ߐࠇߚឃ⍾ࠥ࡯࠻߆ࠄ࠳ࡓḓၸⓍ‛ࠍਅ

area and light transmittance. Silica content has aⴚቇળ㧘36㧔11㧕pp.803-808, 2007.11

ica content of more than 10 wt% has reduced theߩឃ⍾ᑼߩ࠳ࡓߢߪ࠳ࡓᯏ⢻ࠍ⛽ᜬߔࠆߚ߼㧘࠳ࡓcle diameter and reduction of surface area.

ᵹߦឃ಴ߔࠆߎߣࠍ೨ឭߣߒߡ⸳⸘ߐࠇߡ޿ࠆ‫࠳ޕ‬P. S. Vijayanand, S. Kato, S. Satokawa and T. Kojima㧦ⴕߔࠆߚ߼㧘ឃ⍾ߒߚ႐วߩਅᵹၞߢߩ↢ᘒ♽߳ߩ

with Methyl Methacrylate㧦Synthesis, Characteriza-߇ᆎ߹ࠆ೨ߦឃ಴ߔࠆߎߣ߇ᦸ߹ߒ޿‫⎇ᧄޕ‬ⓥߪ㧘ࡓḓၸⓍ‛ߪ㧘ᤨ㑆ߩ⚻ㆊߣߣ߽ߦህ᳇ᕈಽ⸃߇ㅴ

“Copolymerization of 4-cyanophenyl methacrylateⵍኂࠍᦨዊ㒢ᐲߦ᛼ߐ߃ࠆᔅⷐᕈ߆ࠄ㧘ህ᳇ᕈಽ⸃

tion and Determination of Monomer Reactivity Ra-࠳ࡓḓၸⓍ‛߇ህ᳇ᕈಽ⸃ࠍᵴ⊒ߦ⿠ߎߒᆎ߼ࠆ߹

㧙㧙

ߢߩᦼ㑆ߩ᷷ᐲଐሽᕈߦߟ޿ߡᬌ⸛ߔࠆߎߣߦࠃࠅ㧘࠳ࡓឃ⍾ߩ㗫ᐲ᳿ቯߩᜰ㊎ࠍਈ߃ࠆߎߣࠍ⋡⊛ߣߒ᧦ઙߦߟ޿ߡ߽Ყセࠍⴕߞߚ‫ޕ‬ᚑ㐳ㅦᐲߪ᮸㜞ߦࠃߚ‫ޕ‬ንጊ⋵㤥ㇱᎹߦᑪ⸳ߐࠇߚ಴ߒᐔ࠳ࡓḓ߆ࠄណࠅ⹏ଔߒߚ‫ޕ‬Ⴎ᳓ẑ᳓᧦ઙߢ㜞޿↢ᱷ₸ࠍ␜ߒߚ᮸

ขߒߚၸⓍ‛ࠍ૶↪ߒ㧘ࠞ࡜ࡓታ㛎ߣ࿁ಽታ㛎ࠍ⹜⒳ߪ㧘৻⥸⊛ߦႮ᳓ẑ᳓᧦ઙߢߪૐ޿ᚑ㐳ㅦᐲࠍ␜ߺߚ‫ࡓ࡜ࠞޕ‬ታ㛎ߩ⚿ᨐ㧘᳓᷷15͠ߩ႐วߪ᳓᷷

25͠ߩ႐วࠃࠅ㧘ህ᳇ᕈಽ⸃෻ᔕㅦᐲ߇⚂1/3୚ߣߥߒ㧘߹ߚ᷆᳓ẑ᳓᧦ઙਅߢߩᦨ⚳㊀㊂߽ૐ߆ߞߚ‫ޕ‬ࠆߎߣ߇ࠊ߆ߞߚ‫ߚ߹ޕ‬㧘࿁ಽታ㛎ߩ⚿ᨐ߆ࠄ25͠

⥄ὼⅣႺਅߢߩដߌวࠊߖ᮸⒳ߢ޽ࠆEucalyptusߢߪ㧘ታ㛎㐿ᆎᓟ⚂30ᣣ㑆ߢህ᳇ᕈಽ⸃߇ᆎ߹ࠆߎ

ludis x Eucalyptus camaldulensisߩߺߪ㧘Ⴎ᳓ẑ᳓ߣ߇ࠊ߆ߞߚ‫ߩࠄࠇߎޕ‬ታ㛎ߣḓ᳓᷷ߩ⚻ᐕᄌൻ߆᧦ઙߢߩ㜞޿↢ᱷ₸ߣ㜞޿ᚑ㐳ㅦᐲࠍ␜ߒߚ‫ޕ‬ࠄ㧘಴ߒᐔ࠳ࡓߢߪ㧘Ფᐕ㧘ḓ᳓᷷ᐲ߇਄᣹ߔࠆᄐ೨

D. Boraha, S. Satokawaa, S. Katoa and T. Kojima: "ߦቯᦼ⊛ߦឃ⍾ߔࠆߎߣ߇ᔅⷐߢ޽ࠆߣߩ⚿⺰ࠍᓧߚ‫ޕ‬ߒ߆ߒߥ߇ࠄ㧘ᧄ⎇ⓥߢᬌ⸛ߒߚ᮸⒳ߩਛߢߪ໑৻㧘

Surface-modified carbon black for As(V) removal", J.

ၳ 㓷ᢥ㧘⧯ᨋ ᵗ㧘ጊᧄ࿻੺㧘ട⮮ ⨃㧘ዊፉ♿ᓼ㧦‫࠳ޟ‬

Colloid Interface Sci., 319, pp.53-62, 2008.1

ࡓឃ⍾߇㝼੺㘃ߦਈ߃ࠆᓇ㗀ߩ⹏ଔ‫ޠ‬㧘ᣣᧄᶏ᳓ቇળ㧘㇌ᢥ㗴⋡㧦⴫㕙ୃ㘼ߒߚࠞ࡯ࡏࡦࡉ࡜࠶ࠢߩ㧡ଔࡅ⚛㒰

61(6), pp.352-359, 2007.12

 1993ᐕ12᦬ߦⴕࠊࠇߚ㤥ㇱᎹ಴ߒᐔ࠳ࡓ߆ࠄߩ

෰߳ߩᔕ↪

ឃ⍾ߢߪ㧘ឃ಴ߐࠇߚᐩᵆߦࠃࠅਅᵹၞߩṪᬺߦᷓೞߥᓇ㗀ࠍਈ߃ߚ‫߼ߚߩߘޕ‬㧘ਅᵹၞṪᬺ߳ߩᓇ㗀ࠍシᓸߦ᛼ߐ߃ࠆឃ⍾ᣇᴺߦ㑐ߔࠆᬌ⸛߇ᔅⷐߣߥ
ߞߚ‫߼ߚߩߘޕ‬㧘㤥ㇱᎹ಴ߒᐔ࠳ࡓ߆ࠄߩឃ⍾㧘߅ࠃ߮࠳ࡓḓၸⓍ‛ߦࠃࠆỘ᳓߇㝼੺㘃ߦਈ߃ࠆᓇ㗀ࠍⷰኤߒߚ‫ޕ‬㝼⒳ߦࠃࠅỘ᳓Ớᐲߣᓇ㗀ߩ㑐ଥߪ⇣ߥࠆ‫࠽ࡢࠗޕ‬㧘ࡗࡑࡔ㧘ࠪࡠࠩࠤ㧘ࠛ࠱ࠕࡢࡆߢߪ㧘ឃ⍾ߩỘ᳓߇ේ࿃ߣᕁࠊࠇࠆᢣᱫߪ⊒↢ߒߥ߆ߞߚ‫ޕ‬ࠗࡢ࠽㧘ࡗࡑࡔ㧘ࠪࡠࠩࠤߦߟ޿ߡߪ㧘ᴡᎹߩỘ᳓ This paper reports the results of the adsorption
performance of As(V) removal by a commercial
carbon black and its H2SO4-modified form in asingle-ion situation. The influence of different

process parameters and the physicochemical
principles involved were studied in detail. Acid

modification caused morphological changes in thevirgin carbon black as evidenced by BET surface
area measurements and SEM study. FTIR spec-

tra showed the introduction of sulfonic acid groupỚᐲߩࡇ࡯ࠢᤨ㧔SSỚᐲ8,000mg/L㧕ߦߪࡋࡕࠣࡠ

in the parent carbon due to H2SO4 treatment.

㧝ᣣᓟߦߪㅢᏱ▸࿐ౝ߹ߢ࿁ᓳߒߚ‫ޕ‬ḓᐩᵆỘ᳓ߦacteristics of the modified carbon, demonstratingࡆࡦ୯ߩ਄᣹߇ߺࠄࠇߚ߇㧘SSỚᐲߩૐਅߦ઻ߞߡ㧘ኻߒߡ㧘ࡑ࠳ࠗ㧘ࡉ࡝ߪᔊㆱߒ㧘SSỚᐲૐਅᓟߦߪ
࿁Ꮻߔࠆ௑ะ߇ߺࠄࠇ㧘ࠪࡠࠡࠬ㧘ࠢࡠ࠰ࠗߪᔊㆱ
ߔࠆ௑ะߪߺࠄࠇߥ߆ߞߚ‫ޕ‬

TGA analysis revealed higher weight loss char-the creation of functional groups. The point ofzero charge (pHpzc) of the modified carbon black

is highly acidic (3.5) compared to commercial

carbon black (6.4). It directly infers the genera-ự㊁⵨ਯ㧘㊄ⷫ ᥙ㧘ᴡේፒ㉿ሶ㧘↰ౝ⵨ਯ㧘ട⮮ ⨃㧘ዊፉ♿ᓼ㧦‫⽕⷏ޟ‬ᎺႮኂㄘ࿾ߢߩᬀᨋࠍ⋡⊛ߣߒߚ◲ᤃtion of acidic functional moieties in the carbon
black. The adsorption experiments were carried⠴Ⴎᕈ⹜㛎ߦࠃࠆ᮸⒳․ᕈߩᛠី߅ࠃ߮ㆡ↪ᣇᴺߩᬌ

out following batch equilibrium techniques. The Ⴎኂ࿾ၞߢߩᬀᨋߦ߅ߌࠆᦨㆡ᮸⒳ㆬᛯࠍ⋡⊛ߣ

investigated to unveil the mechanism and nature⸛‫ޠ‬㧘ᣣᧄᶏ᳓ቇળ⹹㧘62, pp.22-27, 2008.1

ߒ㧘᮸ᧁߩኻႮᕈ⹏ଔࠍⴕߞߚ‫⽕⷏ޕ‬Ꮊዊ㤈ࡌ࡞࠻࿾Ꮺߢߪ㧘ේ↢ᨋ߇બណߐࠇⓃ‛↢↥ㄘ࿾ߦォ឵ߐࠇߚߚ߼㧘࿾ਅ᳓૏ߩ਄᣹ࠍ᜗߈㧘⴫㕙ߦႮ߇㓸Ⓧߔࠆࠃ߁ߦߥߞߚ‫ߥ߁ࠃߩߎޕ‬࿯࿾ࠍୃᓳߔࠆߦߪ㧘ㇱಽ⊛ߢ޽ࠇᬀᨋߔࠆߎߣ߇ⷐ᳞ߐࠇࠆ‫ߪߦࠄߐޕ‬㧘ᚑ㐳ㅦᐲߩㅦ޿ᧁߪ㧘ᄢ᳇ਛੑ㉄ൻ὇⚛Ớᐲࠍᷫዋߐߖ㧘᳇୥ᄌᦝ໧㗴ࠍ✭๺ߔࠆ‫⎇ᧄޕ‬ⓥߢߪ㧘12᮸⒳ߦߟ޿ߡẑ᳓ਛႮỚᐲࠍቯᦼ⊛ߦჇᄢߐߖࠆߎߣ
ߦࠃࠅ↢ሽ㒢⇇ࠍታ㛎⊛ߦቯ߼ࠆߣ౒ߦ㧘᷆᳓ẑ᳓㧙㧙

kinetics and thermodynamics of adsorption wereof the adsorption process, respectively. The ki-

netic parameters of different models were calculated and discussed. The kinetics of adsorption

can be expressed by a pseudo-second-order model
andintraparticle

diffusion

was

not

the

rate-determining step. Dependence of pH on ad-

sorption showed maximum metal uptake in therange of 4–5 and inferred surface complexion as
the principal mechanism of adsorption. The equi-librium adsorption data were modeled using

SUSY-loop, the package of the program for the

Radushkevich (DKR) isotherm equations and themetricautomatic calculation of the minimal supersym-

Freundlich, Langmuir, and Dubinin–Kaganer–

model

processes

including

one-loop order corrections. The two-body andcorresponding isotherm parameters were calcu-

three-body decay widths of charginos in one-loop

lated and discussed in detail.

D. Borah, S. Satokawa, S. Kato, T. Kojima 㧦standardorder evaluated by GRACE/SUSY-loop are shown.

“Characterization of chemically modified carbon black

N. Sasaki, A. Toyoda, N. Itamura, K. Miura 㧦

Volume 254, Issue 10, Pages 3049-3056, 2008.3

Single-Walled Carbon Nanotube on Graphite Surface”,

for sorption application”, Applied Surface Science“Simulation of Nanoscale Peeling and Adhesion of㇌ᢥ㗴⋡㧦ๆ⌕೷ߣߒߡߩᔕ↪ࠍ⋡⊛ߣߒߚ⴫㕙ൻቇୃ

e-J. Surf. Sci. Nanotech. Vol.6, pp.72-78, 2008.2

㘼ߒߚࠞ࡯ࡏࡦࡉ࡜࠶ࠢߩࠠࡖ࡜ࠢ࠲࡝࠯࡯࡚ࠪࡦ

 A commercial grade carbon black was chemi-㇌ᢥ㗴⋡㧦ࠣ࡜ࡈࠔࠗ࠻⴫㕙਄ߩනጀࠞ࡯ࡏࡦ࠽ࡁ࠴ࡘ

HNO3 or H2SO4 or mixture) and the sorption

ࡦcally modified using mineral acids (either with࡯ࡉߩ࠽ࡁࠬࠤ࡯࡞ᒁ߈೸߇ߒߣಝ⌕ߩࠪࡒࡘ࡟࡯࡚ࠪ

performance of the virgin and modified formsof nanoscale peeling and adhesion processes ofwere investigated. Chemical modification resulted in the creation of surface acidic functionalgroups (.COOH, .SO2OH) and was verified by

FTIR spectra. This was further verified by TGA
analysis revealing higher weight loss character-istics of the modified carbons in comparison tovirgin carbon black. Morphological changes wereobserved from BET surface area measurements

and SEM analysis. XRD study revealed thechange of graphitic crystallite size as a result ofmodification. The suspension pH of the materials

in deionized water and the point of zero charge(pHpzc) in inert electrolyte were determined. The
measured values of suspension pH and pHpzc for

all the carbons were found to be acidic with more
acidic character in the modified carbons. Thesematerials were used as sorbents for the removalof arsenic from aqueous medium and showed excellent adsorption performance. # 2007 Publishedby Elsevier B.V.

J. Fujimoto, T. Ishikawa, Y. Kurihara, M. Jimbo, T.

Kon, M. Kuroda㧦“Two-body and three-body decays ofcharginos in one-loop order in the MSSM”, PhysicalReview, D75: pp.113002(1)-(14), 2007.6

㇌ᢥ㗴⋡㧦ࡒ࠾ࡑ࡞⿥ኻ⒓ᕈℂ⺰ᮨဳߦ߅ߌࠆ࠴ࡖ࡯ࠫ
࡯ࡁߩ2 ૕߅ࠃ߮3૕፣უ᏷ߩ1࡞࡯ࡊ⵬ᱜ

 We present the renormalization scheme used inand the characteristic features of GRACE/㧙㧙

 We have performed molecular mechanics study

carbon nanotube (CNT) on the rigid graphite

surface. First, as a model of CNT, single-walledcarbon nanotube (SW-CNT) of the (3,3) armchair
type with a length of l=99.3comprised of 480
carbon atoms is used. In the simulation CNT
physically adsorbed on the graphite substrate ispeeled (retracted) from the surface and then ad-

sorbed (approached) onto the surface. We havefirst obtained the vertical force-distance curvewith the characteristic hysteresis loop derived
from the bistable states between the line- andpoint-contacts during the peeling and adhesion
processes. The analysis of the vertical and lateralforce curves reveals that the CNT shows multis-

cale mechanics -- both nanoscale mechanics on
the order of CNT's length (Ѥ100

and atomic-

scale mechanics on the order of CNT’s diameter(Ѥseveral  . Next the effect of the CNT length lon the peeling process is studied. As the CNT

becomes shorter, discrete jump of the force curve
vanishes and the peeling force curve exhibits

continuous behavior because the shorter CNT

becomes stiffer. Lastly the effect of the chirarity of
the CNT on the peeling and adhesion processes isstudied for the armchair, zigzag and chiral type
CNTs for the length of about 50. The hysteresisof the peeling curve shows the slight difference of
the adhesive behavior among different chirality ofCNTs.

M. Harada, M. Tsukada, N. Sasaki㧦“Energy Dissi-

pation Mechanism of Non-Contact Atomic Force Mi-

croscopy for Movable Objects”, e-J. Surf. Sci. Nanotech.

tion.
N. Sasaki, N. Itamura, K. Miura㧦“Atomic-Scale Ul-

Vol.6, pp. 1-6, 2008.2

tralow Friction ― Simulation of Superlubricity of C60

㇌ᢥ㗴⋡㧦นേ‛૕ߦኻߔࠆ㕖ធ⸅ේሶ㑆ജ㗼ᓸ㏜ߩࠛ

Vol.89, pp. 01200101-0120010, 2007.11

ࡀ࡞ࠡ࡯ᢔㅺᯏ᭴

 The energy dissipation in non-contact atomic

force microscopy (NC-AFM) caused by the hysteresis loop of the potential energy between a tip

Molecular Bearing”, J. of Phys.:Conference Series㇌ᢥ㗴⋡㧦ේሶࠬࠤ࡯࡞⿥ૐ៺ᡂ -- C60ಽሶࡌࠕ࡝ࡦࠣ
ߩ⿥ẢṖߩࠪࡒࡘ࡟࡯࡚ࠪࡦ

 Simulation of superlubricity of C60 molecularand a sample with respect to the tip height is in-bearing is performed based on molecular me-

vestigated in detail by the case studies for models

chanics. Atomic-scale frictional feature alongof a graphite flake with a diamond tip. One of the[1010] direction of the graphite /C60/graphite in_models is made up of a graphite flake on aterface is numerically investigated compared withgraphite surface. In this case, the hysteresis isthat of the graphite/graphite/graphite interface.

caused by the difference of the lateral positions ofSimulated interlayer distances of about 1.3nm

the flake during the upward and the downward

are in good agreement with previous experimen-

motion of the tip. The other model is made up of atal results[1-3]. Atomic-scale friction coefficientgraphite flake edge. In this model, the hysteresisof graphite/C60/graphite interface decreases

is caused by the difference of the vertical posi-

to about 30% of that of the graphite/graphite/

tions of the flake edge during the upward and thegraphite interface. It is clarified that three-di-

downward motion of the tip.

mensional degree of freedom of intercalated C60

motion is one of origins of ultralow friction ofgraphite/C60/graphite interface along [101 0]

N. Sasaki, N. Itamura, K. Miura 㧦 “Simulation of
Atomic-Scale

Ultralow

Frictionofdirection.

Graph-

ite/C60/Graphite Interface along [10 1 0] Direction”,__

Jpn. J. of Appl. Phys. Vol.46, pp. L1237-L1239,

M. Ishikawa, M. Kato, R. Harada, N. Sasaki, K. Mi-㇌ᢥ㗴⋡㧦ࠣ࡜ࡈࠔࠗ࠻/C60/ࠣ࡜ࡈࠔࠗ࠻⇇㕙ߩ[1010]

of nanoparticles”, J. of Phys.: Conference Series Vol.89,

2007.12_ᣇะߩේሶࠬࠤ࡯࡞⿥ૐ៺ᡂߩࠪࡒࡘ࡟࡯࡚ࠪࡦ
 The graphite/C60/graphite interface plays an

ura㧦“Chaotic behavior appearing in dynamic motions
pp. 01200501-01200509, 2007.11㇌ᢥ㗴⋡㧦࠽ࡁ☸ሶߩേജቇߦ⃻ࠇࠆࠞࠝࠬ⊛ᝄࠆ⥰޿

important role in the atomic-scale ultralow fric- The case of one-directional motion, under which

the frictional feature along the [1010] direction oftamethylcyclotetrasiloxane (OMCTS) liquid sur-tion of C60 intercalated graphite. In this study,_

the graphite/C60/graphite interface is numerically investigated and compared with that of thegraphite/graphite/graphite interface. Simulated

interlayer distances of about 1.3~nm are in good
agreement with previous experimental results.

The atomic-cale friction coefficient of the graphite/C60/graphite interface decreases to about 30%of that of the graphite/graphite/graphite interface.
It is clarified that the three-dimensional degree of

freedom of intercalated C60 motion is one of theorigins of the ultralow friction of the graph-ite/C60/graphite interface along the [1010] direc_㧙㧙

graphite and mica flakes are driven on an ocface, is presented. The dynamical forces needed tomove these bodies increase linearly with thelogarithm of scanning velocity, which are typicalenergy dissipation process. A transition fromquasi-periodic to chaotic motions occurs in the

dynamics of a graphite flake when its velocity is
increased. The dynamics of graphite flakes pulledby the nanotip on an OMCTS liquid surface canbe treated as that of a nanobody on a liquid. On
the other hand, there do not appear chaotic mo-

tions in the dynamics of a mica flake because thecontact area between a mica flake and an OMCTS

species. C60 intercalated graphite film shows

liquid surface is larger than that between amuch less maximum static friction force than C70

graphite flake and an OMCTS liquid surface.

intercalated one. Finally we propose one of the

M. Harada, M. Tsukada, N. Sasaki 㧦 “Theoretical

simple guidelines of designing practical superlubric system -reduction of the contact area be-

Simulationos of Atomic Force Microscopy of Graphite

tween intercalated fullerene and graphite sheet

Flake on Graphite Surface”, e-J. Surf. Sci. Nanotech.

to the point-like contact. Our newly developed

Vol.5, pp. 126-131, 2007.10

superlubric system will contribute to solving the㇌ᢥ㗴⋡㧦ࠣ࡜ࡈࠔࠗ࠻⴫㕙ߦ߅ߌࠆࠣ࡜ࡈࠔࠗ࠻ࡈ࡟

energy and environmental problems.

࡯ࠢߩේሶ㑆ജ㗼ᓸ㏜ߩℂ⺰ࠪࡒࡘ࡟࡯࡚ࠪࡦ

 We present results of theoretical simulations ofatomic force microscopy (AFM) for the systems

K. Urasaki, Y. Fukuda, Y. Sekine, M. Matsukata, E.

strate with a diamond tip. How are atomic slidingof Ethanol over Co/La1-xSrxBO3 (B = Al, Cr, Mn, Fe)consisting of a graphite flake on a graphite sub-motions of the sample reflected on AFM images?
This central issue was investigated by changing
tip height and size of the flake which was locatedon the substrate surface and placed in a vacancy

on the surface. When the tip height becomes

Kikuchi㧦“Hydrogen Production by Steam Reforming
Catalysts”, Journal of Japan Petroleum Institute, Vol.
51 No.2 pp.83-87, 2008 3㇌ᢥ㗴⋡㧦Co/La1-xSrxBO3 (B = Al, Cr, Mn, Fe)⸅ᇦࠍ↪
޿ߚࠛ࠲ࡁ࡯࡞᳓⫳᳇ᡷ⾰෻ᔕߦࠃࠆ᳓⚛⵾ㅧ The steam reforming of ethanol for producing

higher, the flake motion induced by the tiphydrogen was performed over 5 wt% Co catalystschanges from the swinging motion centered at

supported on perovskite-type oxides, La1-xSrxBO3

one local potential minimum to the slipping mo-(B = Al, Cr, Mn, Fe, x = 0 - 0.2) at 823 K with ation between local potential minima. At the same

molar H 2 O/C 2 H 5 OH ratio of 6.

Co/LaAlO 3

time, the image changes from the one reflecting

showed the higher catalytic activity and stability

When the flake size changes, the inverse of image

and LaMnO3.

flake feature to the one reflecting surface feature.
contrast is seen.

than Co catalysts supported on LaCrO3, LaFeO3

When the flake is in a small

fected on the stability of Co/LaAlO3 catalyst and avacancy, a ring shaped image is seen, which re-molar La/Al ratio of 1 was the most suitable,

flects the rotational motion of the flake induced

suggesting that perovskite structure contributesby the tip motion. When the flake is in a large

to the appearance of catalytic activity and stabil-vacancy, the image is a combination of a ringity.

shaped one and a noisy ribbon like one caused by

Sr2+

the lateral movement of the flake.

It was found that the partial substitution of

for La3+ in LaAlO3 resulted in further re-markable improvement of catalytic activity andhydrogen yield.

K. Miura, D. Tsuda, N. Itamura, N. Sasaki 㧦

We consider that enhanced mo-bility of lattice oxygen in La1-xSrxAlO3-δ contrib-“Superlubricity of Fullerene Intercalated Graphite

utes to its more frequent participation in the

Composite”, Jpn. J. of Appl. Phys. Vol.46, pp.

oxidation of intermediates over metallic cobalt,

5269-5274, 2007.8

leading to both high catalytic activity and stabil-

ity of Co/La1-xSrxAlO3-δ in comparison with㇌ᢥ㗴⋡㧦ࡈ࡜࡯࡟ࡦኽ౉ࠣ࡜ࡈࠔࠗ࠻ൻว‛ߩ⿥ẢṖ Novel superlubric system of fullerene intercalated graphite composite is reported. First it is

A molar La/Al ratio markedly af-

Co/LaAlO3.

clarified that fullerene intercalated graphite films

Toshiaki Tsukuda, Satsuki Maeda, Masahiko Yasui,lent friction coefficients smaller than for MoS2

Barium(II) complexes sandwiched by a Schiff baseexhibit ultralow average friction force, and exceland for graphite. Next it is demonstrated thatsuperlubricity can be controlled by intercalantTakeshi Tamane, Taro Tsubomura㧦“Structure of amacrocycle”, Bull. Chem. Soc. Jpn.,Vol. 81, No.3,
p.358,2008.3

㧙㧙

㇌ᢥ㗴⋡㧦ࠪ࠶ࡈႮၮࠍ᦭ߔࠆᄢⅣ⁁㈩૏ሶߦࠃࠆࠨࡦ
࠼ࠗ࠶࠴ဳࡃ࡝࠙ࡓ(II)㍲૕ߩ᭴ㅧ Barium complexes sandwiched by octaaza3]”,Bull. Chem. Soc. Jpn.,Vol. 80, No. 6, p.1140, 2007.

㧢

Schiff base macrocycle prepared by [2+2] con-double complex crystals of [Co(en)3] [Tb(dpa)3]

densation of diimine and phenanthroline dicar-(en=ethylenediamine,boxyaldehyde have been studied; ten-coordinate

singletion intensity on coordination have been revealed.

racemic[Tb(dpa)3]

naka, Kenji Mastumoto, Toshiaki Tsukuda㧦“Strongly
andPlatinum(0)crystalof

rac-[Co(en)3]•rac-[Tb(dpa)3](double complexes salt of racemic [Co(en)3]3+ andTaro Tsubomura, yasuhiro Ito, Satoshi Inoue, Yu TaPalladium(0)dpa=2,6-pyridinedicarbo-

xylate) were investigated, and compared between

structure of the complex and increase of absorp-

Luminescent Luminescence and energy transfer reactions in[Tb(dpa)3]3-)(chiral[Tb(dpa)3]3- salt).

Di-

stants from

phosphine Complexes”, Inorg. Chem., Vol. 47, No. 2, p.

Tb3+

and

[Co(en)3]3+

Ǎ-[Co(en)3]•racand

racemic

The energy transfer rate con-to Co3+ complexes were deter-

mined from the time profile of emission intensity

481, 2008.㧝

of photo-excited Tb(III) ion in the double complex
crystals.

The decay profiles of rac-[Co(en)3]•

 The synthesis, structure, and photolumines-

tial curves.

On the other hand, the profiles of Ǎ

containing biarydiphosphines, biphep (biphep =curves.

㇌ᢥ㗴⋡㧦ᒝ⊒శࠍ␜ߔࡄ࡜ࠫ࠙ࡓ(0)෸߮⊕㊄(0)㧙ࠫࡎ

rac-[Tb(dpa)3] were analyzed by single exponen-ࠬࡈࠖࡦ㍲૕

cence of palladium(0) and platinum(0) complexes
2,2’-bis(diphenylphosphino)-1,1’-biphenyl)-[Co(en)3]•rac-[Tb(dpa)3] show double exponential

andstructures, it was found that there is only one site

binap (binap = 2,2’-bis(diphenylphosphino)-1,1’-

for [Tb(dpa)3]3- in rac -[Co(en)3]•rac-[Tb(dpa)3]

crystal, and there are two site in Ǎ-[Co(en)3]•

binaphthyl) have been studied. X-ray structure
analysisof[Pt(biphep)2]

revealedtherac-[Tb(dpa)3] crystal, i.e. Ǎ-[Tb(dpa)3]3- and ǔ

dis--[Tb(dpa)3]3- are put in different site in the crystal.

torted-tetrahedral geometry of the complex. The

The two rate constants obtained from the double

photophysical properties of the three complexes[Pd(biphep)2],[Pt(biphep)2],

and

From the X-ray analysis of crystal

exponential curve of Ǎ -[Co(en)3]•rac-[Tb(dpa)3][Pd(binap)2]

were investigated and compared with that of theare assigned to energy transfer rates from[Pd(biphep)2] complex shows the strongest lumi-

Fine distance dependence could be determined

Ǎ-[Tb(dpa)3]3- and ǔ-[Tb(dpa)3]3- in the crystal.

previously reported [Pt(binap)2] complex. The

from the obtained energy transfer rate constants

nescence with a high quantum yield (38%) and along lifetime ( 3.2Ǵs ) in a toluene solution at

and Tb-Co distances in the crystals according to
the Dexter type electron exchange mechanism ofroom temperature. The luminescence should beenergy transfer model.

due to metal-to-ligand charge transfer excited

constants in the crystals are comparable in mag-states. At room temperature, radiative rate con-nitude with energy transfer rates in quenchingstants of the four complexes show similar values.

experiments in the [Tb(dpa)3]3--[Co(en)3]3+ aque-

The difference in the luminescent properties

ous solution.

should reflect the different nonradiative rate
constantsofthecomplexes.

The

tempera-ture-dependence of the luminescence spectra andlifetime of the complexes were also discussed.

The energy transfer rate

M. Nonaka, B. Y. Ma, M. Ohtani, A. Yamamoto, M.

Murata, K. Totani, Y. Ito, K. Miwa, W. Nogami, N.
Kawasaki, and T. Kawasaki㧦“Subcellular localization

Munetaka Iwamura, Toshiaki Tsukuda and Makoto

and physiological significance of Intracellular man-Chiralpp.17908-17920, 2007. 6

Morita 㧦 “Energy-Transfer Process in Crystals of
andracemic

doublecomplexsaltsof[Co(ethylenediamine)3][Tb(2,6-pyridinedicarboxylate)nan-binding protein”, J. Biol. Chem. Vol. 282, No. 24,

㇌ᢥ㗴⋡㧦ࡑࡦ࠽ࡦ⚿ว࠲ࡦࡄࠢ⾰ߩ⚦⢩ౝዪ࿷ߣ↢ℂ

㧙㧙

 VIP36-like protein (VIPL) was identified as an⊛ߥ㊀ⷐᕈ

endoplasmic reticulum (ER) resident protein with

 Mannan-binding protein (MBP) is a C-type

homology to VIP36, a cargo receptor involved in

mammalian lectin specific for mannose andthe transport of glycoproteins inside cells. Al-

N-acetylglucosamine. MBP is mainly synthesizedthough VIPL is structurally similar to VIP36,

in the liver and occurs naturally in two forms,

VIPL is thought not to be a lectin, because its

serum MBP (S-MBP) and intracellular MBP

sugar-binding activity has not been detected in(I-MBP). S-MBP activates complement in asso-

several experiments. Here, recombinant soluble

ciation with MBP-associated serine proteases via

VIPL proteins (sVIPL) were expressed in Es-

the lectin pathway. Despite our previous study,

cherichia coli, biotinylated with biotin ligase andthe subcellular localization of I-MBP and its

oligomerized with R-phycoerythrin (PE)-labeled

functional implication have not been clarified yet.

streptavidin (SA). As measured with flow cy-

Here, as an extension of our previous studies, wetometry, PE-labeled sVIPL-SA bound to deoxy-

have demonstrated that the expression of humanmannojirimycin (DMJ)- or kifunensine (KIF)- but

MBP cDNA reproduces native MBP differentia-

not to swainsonine (SW)-treated HeLaS3 cells intion of S-MBP and I-MBP in human hepatoma

the presence of calcium. A surface plasmon reso-

cells. I-MBP shows distinct accumulation in cyto-nance analysis showed that the avidity of sVIPL

plasmic granules, and is predominantly localized

was enhanced after it formed a complex with SA.

in the endoplasmic reticulum (ER) and involved

The binding of PE-labeled sVIPL-SA was abro-in COPII vesicle-mediated ER-to-Golgi transport.

gated by endo beta-N-acetylglucosaminidase H

However, the subcellular localization of either atreatment of the DMJ- or KIF-treated cells.

mutant (C236S/C244S) I-MBP, which lacks car-Competitionbohydrate- binding activity, or the wild-typesequence. Glucosylation of the outer mannose

gesting that the unique accumulation of I-MBP inresidue of this portion decreased the binding. Al-

the ER and COPII vesicles is mediated by anthough the biochemical characteristics of VIPL

N-glycan-lectin interaction. Furthermore, theare similar to those of VIP36, the sugar-binding

binding of I-MBP with glycoprotein intermediates
thepH-dependent,
trimmed

ER,

and

which

is

is

affectedhigh-mannose-typeglycanby

activity of VIPL was stronger at neutral pH, cor-andresponding to the pH in the lumen of the ER, thanglucose-under acidic conditions.

oligosaccharides.

These results strongly indicate that I-MBP may

function as a cargo transport lectin facilitating
ER-to-Golgi traffic in glycoprotein quality control.

D. Yamaguchi, N. Kawasaki, I. Matsuo, K. Totani, H.
Tozawa, N. Matsumoto, Y. Ito, and K. Yamamoto㧦“VIPL has sugar-binding activity specific for highmannose-type N-glycans, and glucosylation of the ǩ

1,2 mannotriosyl branch blocks its binding”, Glycobi-

high-mannose-type

that VIPL recognizes the Manǩ1-2Manǩ1-2Man

equally diffuse cytoplasmic distribution, sug-inseveralN-glycans inhibited VIPL binding, and indicated

I-MBP in tunicamycin-treated cells shows an

occurswith

N. Kawasaki, Y. Ichikawa, I. Matsuo, K. Totani, N.
Matsumoto,

Y.

Ito,

and

K.

Yamamoto 㧦 “TheSugar-Binding Ability of ERGIC-53 is Enhanced by its

Interaction with MCFD2”, BLOOD Vol. 111, No. 3,
pp.1972-1979, 2008. 2

㇌ᢥ㗴⋡㧦ERGIC53ߩ♧⚿วᵴᕈߪMCFD2ߣߩ⋧੕૞↪ߢะ਄ߔࠆ

ology Vol. 17, No. 9, pp.1061-1069, 2007. 9㇌ᢥ㗴⋡㧦VIPLߪ㜞ࡑࡦࡁ࡯ࠬဳN-ࠣ࡝ࠞࡦ․⇣⊛ߥ♧⚿วᵴᕈࠍߟ߇㧘ǩ1,2-ࡑࡦࡁ࠻࡝ࠝ࡯ࠬಽጘ㎮ߩࠣ

 Combined deficiency of factors V and VIII
(F5F8D) is a bleeding disorder caused by muta-

tions in LMAN1 or MCFD2. LMAN1 encodes

ERGIC-53, a cargo receptor with an L-type lectin
domain, and MCFD2 is a EF-hand-containing࡞ࠦࠪ࡞ൻߪ♧⚿วᵴᕈࠍ㒖ኂߔࠆ

protein. We prepared a biotinylated, soluble form㧙㧙

withmolecular crowding on other N-linked gly-

cytometry, sERGIC-53-SA bound to HeLaS3 cells

glucosyltransferase and 1,2-alpha-mannosidase.

of

ERGIC-53,

which

we

labeledcan-processing enzymes, UDP-Glc:glycoprotein

R-phycoerythrin conjugated streptavidin. By flow

Our results indicate that the kinetics of glycan

in the presence of calcium but only after prein-

processing under crowded conditions may becubation with MCFD2. Treating the cells withquite different from those measured in diluteendo H or incubating them with high man-buffers.

nose-type N-glycan, especially M8B, abrogatedsERGIC-53-SA binding. Surface plasmon reso-

nance experiments demonstrated that MCFD2

S. Nakamura-Tsuruta, N. Uchiyama, W. J. Peumans,

mutants found in F5F8D patients had a Ka thatbayashi㧦“Analysis of the sugar-binding specificity of

specifically bound to sERGIC-53 and 2 MCFD2

was 3 or 4 orders of magnitude lower for sER-

GIC-53 than for wild-type MCFD2. The Ka ofsERGIC-53 and MCFD2 was measured at several
pH values and calcium concentrations, and we
found that at a calcium concentration less thanE. J. M. Van Damme, K. Totani, Y. Ito, and J. Hiramannose-binding Jacalin-related lectins by frontal

affinity chromatography - an approach to functionalclassification”, FEBS J. Vol 275, No. 6, pp.1227-1239,
2008. 30.2 mM, this interaction became significantly㇌ᢥ㗴⋡㧦ࡈࡠࡦ࠲࡞ࠕࡈࠖ࠾࠹ࠖ࡯ࠢࡠࡑ࠻ࠣ࡜ࡈࠖ

binding of ERGIC-53 to sugar is enhanced by its

prises galactose-binding-type (gJRLs) and man-weaker. These results demonstrate that the࡯ࠍ↪޿ߚJacalin↱᧪ࡑࡦࡁ࡯ࠬ⚿ว࡟ࠢ࠴ࡦߩ⸃ᨆ

interaction with MCFD2, and defects in this in-nose-binding-type (mJRLs) lectins. Although theteraction in F5F8D patients may be the cause for
reduced secretion of factors V and VIII.

K. Totani, Y. Ihara, I. Matsuo, and Y. Ito㧦“Effects ofmacromolecular crowding on glycoprotein processing

enzymes”, J. Am. Chem. Soc. Vol. 130, No. 6,
pp.2101-2107, 2008. 2

㇌ᢥ㗴⋡㧦♧࠲ࡦࡄࠢ⾰ࡊࡠ࠮ࠪࡦࠣ㉂⚛ߦኻߔࠆࡑࠢ
ࡠಽሶࠢ࡜࠙࠺ࠖࡦࠣⅣႺߩᓇ㗀 Intracellular environments are highly crowded

due to the presence of various biomacromolecules.

In this study, we estimated the property of theendoplasmic reticulum glucosidase II (G-II) undermacromolecular crowding conditions. A crowded
milieu that contains bovine serum albumin

greatly enhanced the second trimming step(cleavage 2), which deglucosylates Glc1Man9

GlcNAc2, but not the first trimming step (cleavage 1), which removes the terminal glucose residue from Glc2Man9GlcNAc2. A similar effect was

obtained with ribonuclease A and high molecularweight polyethylene glycol 20,000. An analysis of

CD spectra suggested that G-II enhanced its
cleavage2

activitythroughconformationalchange. We also investigated the effects of㧙㧙

 The Jacalin-related lectin (JRL) family com-

documented occurrence of gJRLs is confined to

the family Moraceae, mJRLs are widespread in
the plant kingdom. A detailed comparison ofsugar-binding specificity was made by frontal af-

finity chromatography to corroborate the structure-function relationships of the extended mJRL
subfamily. Eight mJRLs covering a broad taxo-

nomic range were used: Artocarpin from Artocarpus integrifolia (jackfruit, Moraceae), BanLecfrom Musa acuminata (banana, Musaceae), Cal-sepa from Calystegia sepium (hedge bindweed,

Convolvulaceae), CCA from Castanea crenata(Japanese chestnut, Fagaceae), Conarva from

Convolvulus arvensis (bindweed, Convolvulaceae),
CRLL from Cycas revoluta (King Sago palm tree,
Cycadaceae), Heltuba from Helianthus tuberosus(Jerusalem artichoke, Asteraceae) and MornigaMfrom Morus nigra (black mulberry, Moraceae).
The result using 103 pyridylaminated glycans

clearly divided the mJRLs into two major groups,
each of which was further divided into two
subgroups

based

on

the

preferenceforhigh-mannose-type N-glycans. This criterion also

applied to the binding preference for complex-type N-glycans. Notably, the result of cluster

analysis of the amino acid sequences clearly cor-the oxygen background pressure and its incorpo-

Thus,

study. We have developed a UHV sputtering sys-

ration into the TiN film is investigated in this

responded to the above specificity classification.
markedcorrelation

betweenthe

tem and deposited TiN films under two different

sugar-binding specificity of mJRLs and theirbase pressure conditions: one was a UHV condi-

phylogeny should shed light on the functionaltion less than 10-6 Pa, and the other was 1×10-4 Pa

significance of JRLs.

(એ਄㧡ઙ ᚭ⼱Ꮧ৻㇢ ೨⡯㧔⁛㧕ℂൻቇ⎇ⓥᚲ ၮ␆of oxygen. The oxygen content of the films was⑼ቇ․೎⎇ⓥຬ߅ࠃ߮CREST⎇ⓥຬߦ߅ߌࠆታ❣)examined with X-ray photoelectron spectroscopy.

ਛ㊁ᱞ㓶࡮ᤊၷ৻㇢࡮㚍႐ ⨃㧦‫⓸ޟ‬ൻ࠴࠲ࡦߩ෻ᔕᕈࠬ

film deposited under the UHV condition, 10 at.%

pp.291-293, 2007.4

O2 introduction. The extent of O2 incorporation

While no trace of oxygen was detected in the TiNࡄ࠶࠲⵾⤑ߦ߅ߌࠆ⌀ⓨⅣႺߩᓇ㗀‫⌀ޠ‬ⓨ, Vol.50, No.4,

of oxygen was observed in that deposited with the The effect of background gas environment on

into the TiN film is discussed based on the dif-the purity of reactively-deposited nitride films

ference in sticking characteristics of oxygen andhas been studied. Especially, the relation between

nitrogen on the titanium surface.

ᖱ ႎ ⑼ ቇ ⑼Y. Saeki, M. Aoki㧦“Driver monitoring using a far

nostril and eye's outline are decided by this proc-

Electronics and Visual Computing Workshop 2007

by Kalman filter using location, velocity and ac-

ess. After third step, we proposed to tracked gaze

infrared camera”, Proceedings of the IIEEJ Imageceleration. And gaze is estimated by connection

 It is said that there are 90% or more traffic ac-with location of iris, nostril and eye’s outline.And

cident caused by human error of a driver. De-

we assume that distance of subject’s gaze can betecting the abnormal circumstances of a driver at

estimated by considering the eye model.

an early stage will prevent human error. In thisstudy, we set a far infrared camera in the inside ofcar and monitor a driver. The purpose of thisM. Nakayama, Y. Saeki, S. Katahara, M. Aoki㧦“Drivera face position of a driver in the inside of car

Proceedings of the IIEEJ Image Electronics and Vis-

study is to make a system that detects and tracks
where an illumination condition is not stable. We

tracked a face position of a driver by performing

face detection using low resolution far infrared image”,
ual Computing Workshop 2007

the detection of a candidate head domain using
template matching.

N. Toda, M. Aoki㧦“Driver's gaze detection”, Proceedings of the IIEEJ Image Electronics and VisualComputing Workshop 2007

 We propose a method to estimate the Driver's
gaze using a video camera. First gaze detection
process is transform into binary image for extracted black part of an iris. And next step is ex-

traction of border for perform circle detection
Hough transform. And third step is circle detec-tion Hough transform for detect circle shape ofiris, nostril and eye's outline. Location of iris,㧙㧙

 Face position and direction gives a good cue fordriver vigilance and alertness. In this paper we

propose a driver face detection algorithm using
low resolution (8×6) far infrared image. We as-

sumed that the highest temperature position

represents a good candidate of face position. The
trace of this position indicates facial movement
and posture change. We applied the proposed al-

gorithm to the low resolution far infrared image

sequence of an actual driving situation takenfrom a camera installed on the top of an instrument panel. The result shows the feasibility andusefulness of the proposed algorithm in detecting
face position. The face position information is also

useful for air bag operation, specifically for childin the passenger seat.

⾓ࠍᓧࠆߚ߼ߦߪ㧘ߘߩ2㚞㑆ߩ೑↪น⢻⚻〝ߩߔ

Atsuko Ikegami, Aki Uno㧦“Bounds for staff size inߴߡ㧘߽ߒߊߪ㧘ߘߩ৻ㇱࠍ೉᜼ߒߡ್ᢿߔࠆᔅⷐ

tions Research Society of Japan, Vol.50, No.4,

 ᚒ‫ߪޘ‬㧘ਈ߃ࠄࠇߚ㋕㆏ࡀ࠶࠻ࡢ࡯ࠢ㧔1␠ߩߺ

home help staff scheduling”, Journal of the Opera-߇޽ࠆߎߣ߇㧘ߎࠇ߹ߢߦ߽ႎ๔ߐࠇߡ߈ߚ‫ޕ‬

pp.563-575, 2007ߩࡀ࠶࠻ࡢ࡯ࠢߣ㧘ⶄᢙ␠ࠍ฽߻ࡀ࠶࠻ࡢ࡯ࠢߩਔ

㇌ᢥ㗴⋡㧦⸰໧੺⼔ࠬ࠲࠶ࡈࠬࠤࠫࡘ࡯࡝ࡦࠣߦ߅ߌࠆ

೉᜼ࠍᔅⷐߣߒߥ޿ࠕ࡞ࠧ࡝࠭ࡓࠍ೑↪ߔࠆߎߣߦ

ࠬ࠲࠶ࡈᢙߩ਄ਅ㒢୯ Home help organizations provide services atࠃࠅ㧘ߘߩಣℂᤨ㑆ߩᄢ᏷ߥ೥ᷫߦᚑഞߒߚ‫ޕ‬

venient for the user. Helpers with time windowߒࠍ⛉ࠅ㧘ߘߩਛߢ߽㧘᧲ᣣᧄᣏቴ㋕㆏㧔JR᧲ᣣᧄ㧕

signed to these services to ensure that the ser-ߔࠆᖱႎ߆ࠄ㧘㚂ㇺ࿤ࠛ࡝ࠕߩICࠞ࡯࠼ ਸ਼ゞ೛Suica/Pasmoߩ೑↪น⢻▸࿐㧔㑐᧲IC▸࿐㧕ߩో2

usually takes the schedulers a considerable㚞㑆ߩᦨ቟ㆇ⾓ߣߘߩ⚻〝ࠍᓧࠆࠕ࡞ࠧ࡝࠭ࡓࠍ⚫

ᣇߩ႐ว㧕ߩో2㚞㑆ߩㆇ⾓⸘▚ߦኻߒ㧘߶ߣࠎߤ ᧄⓂߢߪ㧘1␠ౝࡀ࠶࠻ࡢ࡯ࠢߢߩㆇ⾓⸘▚ߦ⹤respective users̉ homes at a time that is con-ࠍኻ⽎ߦ㧘JRᤨೞ⴫ߦឝタߐࠇߡ޿ࠆ᥉ㅢㆇ⾓ߦ㑐

constraints for their working hours must be as-vices are provided㧚Producing adequate schedules੺ߔࠆ‫ޕ‬

amount of time due to many types of constraints
and requirements. It is difficult even to estimate
the number of helpers needed.

 In this paper, we introduce a mathematicalprogramming formulation of the home help staffጤፒ ቇ࡮ᑇ ᳃ༀ㧦‫࠙ࠞࠆ޽ߩࡦ࡚ࠪ࡯ࠤࡦ࡜࠻ࡠ࠯ޟ‬ࡦ࠻࠺࡯࠲ߩ⸃ᨆ‫ޠ‬,ⴕേ⸘㊂ቇ㧘Vol. 34㧘No. 1㧘pp.

91-100㧚2007. 4

scheduling problem, and propose two types of ޽ࠆ੐⽎ߩ↢⿠࿁ᢙ߇0ߩᐲᢙߪႎ๔ߐࠇߕ↢⿠a specific day. We then also calculate the numberࠤ࡯࡚ࠪࡦ߇↢ߓߚߣ޿߁‫⺰ᧄޕ‬ᢥߢߪ㧘࠯ࡠ࠻࡜order to determine the upper bound. Combining⺰ߔࠆ‫ߦ․ޕ‬㧘2ߟߩ੐⽎ߩ↢⿠࿁ᢙ㑆ߩ㑐ଥࠍ2ᄌ

lower bounds for the number of helpers needed on

࿁ᢙ߇1એ਄ߩᐲᢙߩߺ߇ᓧࠄࠇࠆߣ߈࠯ࡠ࠻࡜ࡦ

of helpers using a simple heuristic algorithm inࡦࠤ࡯࡚ࠪࡦߩਅߢߩࠞ࠙ࡦ࠻࠺࡯࠲ߩ⸃ᨆᴺࠍ⼏

the bounds with the information obtained when

㊂ߩࠟࡦࡑࡐࠕ࠰ࡦಽᏓߢࡕ࠺࡞ൻߒߚ႐วߩᧂ⍮for arranging the appropriate helpers for eachࠗ࠾ࡦࠣ߳ߩᔕ↪ࠍᗧ⼂ߒ㧘ផቯᴺߣߒߡߪߥࠆߴ

though each of the algorithms that obtains theߩ࠺࡯࠲࠮࠶࠻ߦㆡ↪ߒߚ⚿ᨐࠍ␜ߔߣหᤨߦ㧘߽

determining the bounds was shown to be usefulࡄ࡜ࡔ࡯࠲ߩផቯᴺࠍਈ߃ࠆ‫ߪߢߎߎޕ‬㧘࠺࡯࠲ࡑday before making a detailed schedule, evenߊ◲ଢߥ߽ߩࠍਈ߃ࠆ‫ߚ߹ޕ‬㧘ߘߩᚻᴺࠍ޿ߊߟ߆

bounds is very simple.

߁߭ߣߟ೎ߩ໧㗴㧘ߔߥࠊߜ↢⿠࿁ᢙ0ߩᐲᢙ߇ႎ
๔ߐࠇߡ޿ߚߣߒߡ߽ߘࠇ߇ᔅߕߒ߽ㆡಾߥ߽ߩߣ
ߪ㒢ࠄߥ޿ߎߣ߇⃻ታߩ࠺࡯࠲ߢߪᢔ⷗ߐࠇࠆߎߣ

ᳰ਄ᢕሶ㧘᫪↰㓳ผ㧘⩵࿾ ਒㧘ጊญᜏ⌀㧘ਛጊ೑ብ㧦‫ޟ‬㋕ࠍᜰ៰ߔࠆ‫ޕ‬㆏ㆇ⾓⸘▚ߩߚ߼ߩᦨㆡ⚻〝ត⚝‫⸘⛔ޠ‬ᢙℂ⎇ⓥᚲ౒ห
⎇ⓥ࡟ࡐ࡯࠻221‫ᦨޟ‬ㆡൻ㧦ࡕ࠺࡝ࡦࠣߣࠕ࡞ࠧ࡝࠭ࡓ

21‫ޠ‬㧘pp.246㨺252㧘2008.3

 ㋕㆏ㆇ⾓ߪၮᧄ⊛ߦ〒㔌߇㐳ߊߥࠇ߫ߥࠆ߶ߤ㜞ጤፒ ቇ࡮ᴡ↰␭৻㧦‫ޟ‬ಣ⟎೨ᓟ⎇ⓥߦ߅ߌࠆᐔဋ߳ߩ࿁

Ꮻߣߘߩ๟ㄝ‫ޠ‬,ᣣᧄ⛔⸘ቇળ⹹ࠪ࡝࡯࠭㧶㧘Vol. 36㧘

No. 2㧘pp. 131-145㧚2007. 4

ߊߥࠆࠃ߁ߦ⸳ቯߐࠇߡ޿ࠆ߽ߩߩ㧘หߓ〒㔌ߢ߽ ᣂ⮎㐿⊒ߩ⥃ᐥ⹜㛎ߥߤߢߪ㧘⋡⊛ߣߥࠆಣ⟎ߩળ␠ߦࠃߞߡ㧘ߐࠄߦߪหߓળ␠ౝߢ߽࿾ၞ߿〝✢ലᨐߩ᦭ή߿ߘߩᄢ߈ߐࠍ⹏ଔߔࠆ㓙㧘หߓⵍ㛎⠪ߦࠃߞߡ㧘⇣ߥࠆ㊄㗵߇⸳ቯߐࠇߡ޿ࠆ‫ߦࠄߐޕ‬㧘ߦኻߒಣ⟎ࠍᣉߔ೨ߣᣉߒߚᓟߢ࠺࡯࠲ࠍ᷹ⷰߔࠆ

ਸ਼ゞ඙㑆ߦࠃߞߡߪഀᒁ࡞࡯࡞߿․೎ㆇ⾓߇⸳ቯߐ޿ࠊࠁࠆಣ⟎೨ᓟ⎇ⓥ߇ⴕߥࠊࠇࠆߎߣ߇ᄙ޿‫ߎޕ‬ࠇߡ޿ࠆߎߣߥߤ߆ࠄ㧘ᦨ⍴⚻〝߇ᦨ቟ㆇ⾓⚻〝ߦ

ߩ⒳ߩ⎇ⓥ࠺ࠩࠗࡦߢߪ㧘‫ޟ‬ᐔဋ߳ߩ࿁Ꮻ‫↢߇⽎⃻ޠ‬ߥࠆࠊߌߢߪߥ޿‫ߚ߹ޕ‬㧘೑↪⠪ߩਸ਼ゞ⚻〝߇᣿ࠄߓ㧘ߣ߽ߔࠆߣ⹜㛎⚿ᨐߩ⸃㉼ߦ㊀ᄢߥ⺋ࠅࠍ߽ߚ߆ߢߥ޿႐ว㧘ᦨ቟ㆇ⾓⚻〝ࠍ೑↪ߒߚߣߺߥߒߡ

ࠄߔߎߣ߽޽ࠆ‫ߕ߹ߪߢ⺰ᧄޕ‬㧘ᐔဋ߳ߩ࿁Ꮻ߇ߥㆇ⾓ࠍ᳿ቯߔࠆߩߢ㧘ਈ߃ࠄࠇߚ2㚞㑆ߩᱜߒ޿ㆇ

ߗ↢ߓࠆߩ߆ߦ㑐ߔࠆ⠨ኤࠍࡌࠗ࠭ᵹߩࡕ࠺࡞ߦၮ

㧙㧙

with the hashes and the signed hashes areߠ޿ߡⴕߥ߁‫ߩߘޕ‬਄ߢ㧘2ᄌ㊂ᱜⷙಽᏓߩߺߥࠄ

checked if they have the correct time and if theߕ㧘2ᄌ㊂ࠟࡦࡑࡐࠕ࠰ࡦಽᏓ߅ࠃ߮2ᄌ㊂ࡌ࡯࠲ੑserial numbers are contiguous. This verification㗄ಽᏓߩࠃ߁ߥ㔌ᢔಽᏓߢ߽ห᭽ߩᐔဋ߳ߩ࿁Ꮻ⃻can be done as a batch after the game is finished.

⽎߇⷗ࠄࠇࠆߎߣࠍᜰ៰ߒ㧘ߘߩ⒳ߩ࠺࡯࠲ߩ⛔⸘The latency in this protocol is only the packet⊛ផ᷹ᴺߦߟ޿ߡ⼏⺰ߔࠆ‫ޕ‬

traveling time from a player to another.

਄↰ ᔀ㧦
‫ޟ‬ᢙℂ⸘↹ᴺߦࠃࠆ⛮ᰴࠞ࠹ࠧ࡝࠺࡯࠲ߩ⸃ᨆ
ᴺ‫ޠ‬ᣣᧄࠝࡍ࡟࡯࡚ࠪࡦ࠭࡮࡝ࠨ࡯࠴ቇળ๺ᢥ⺰ᢥ⹹

Y. Obu, M. Yamamoto, T. Yonekura, M. Kamada and S.

 ⷏㉿ߪ෺ኻዤᐲᴺߩ㧔ࠞ࠹ࠧ࡝࡯ߦ㗅ᐨߩ޽ࠆ㧕

Browser Programming”, Proceedings of the 2007

(TORSJ)㧘Vol.50, pp.68-81, 2007.12⛮ᰴࠞ࠹ࠧ࡝࠺࡯࠲߳ߩㆡ↪ᴺࠍᎿᄦߒߡ޿ࠆ߇㧘ߘߩቯᑼൻߪ㕙ୟߢ޽ࠆ‫ߒ߆ߒޕ‬㧘⛮ᰴᕈߪᢙℂ⸘

Okamoto 㧦 “Exploring State Diagram-based Web

IEEE, International Conference on Cyberworlds,
Hannover (2007.10)↹ᴺߩ೙⚂ߣߒߡᝒ߃ࠇ߫ߘߩ⴫⃻ߪኈᤃߥߩߢ㧘 Over the last few years a great deal of interestℂ⸘↹ᴺߣߒߡߩቯᑼൻߦߟ޿ߡㅀߴߡ޿ࠆ‫ޕ‬ᢙℂ

Wide Web-based services referred to as Web 2.0.

߹ߕMS Excelߩ࠰࡞ࡃ࡯ߢ⸃ߌࠆ⒟ᐲߩ◲ᤃߥᢙ

has focused on a major paradigm shift in WorldIn marked contrast to the earlier Web, in Web 2.0

⸘↹ᴺߩ೑ὐߪ⋡⊛㑐ᢙ߿೙⚂ߩୃᱜ㧘ㅊട߇ᭂ߼

sites become sources of information and func-ߡኈᤃߥߎߣߢ޽ࠅ㧘ߘߩ․ᓽࠍ↢߆ߒߡ᭽‫⋡ߥޘ‬

tionality that enable users to create new content⊛㑐ᢙߦߟ޿ߡᬌ⸛ߒߡ޿ࠆ‫ߢࠈߎߣޕ‬㧘࿁╵⠪ߦ

of their own. Consequently, users are now looking⹏ଔኻ⽎ࠍਥⷰ⊛ߦ⹏ଔߒߡ߽ࠄ߁႐วߪߘߩ⹏ଔ

for more versatile browsers that will let them edit⚿ᨐߪ⏕ቯ୯ߢߪߥߊߎߩ⒟ᐲߣ޿ߞߚᦌᤒߐࠍᜬ

and display content based on their own prefer-ߞߡ޿ࠆߢ޽ࠈ߁‫ߢߎߘޕ‬㧘෺ኻዤᐲᴺߦ߅޿ߡᦌ

ences. This motivated us to develop a state dia-ᤒߐࠍࡕ࠺࡞ߦᜬߜㄟ߻ߚ߼ߦࡈࠔࠫࠖᢙࠍ↪޿ࠆ

gram-based Web browser programming schemeߎߣ߽ឭ᩺ߒߡ޿ࠆ‫ޕ‬ਃߟߩ࿁╵଀ࠍ↪޿ߡᧄ⺰ᢥߢឭ᩺ߔࠆࡕ࠺࡞ߩ᦭ലᕈࠍ⏕⹺ߒߡ޿ࠆ‫ޕ‬that supports the close interaction between the

S. Mogaki, M. Kamada, T. Yonekura, S. Okamoto,to represent browser behavior is easier for

end-user and Web content. Using state diagrams

Y.Ohtaki, M. Reaz 㧦 “Time-Stamp Service makes

end-users with little or no programming experi-ence to grasp than text-based programming sys-

Real-Time Gaming Cheat-Free”, 6th Annual Work-

tems.

shop on Network and Systems Support for Games
2007, (NETGAMES2007), pp.135-138, (2007.9).

 Assuming time-stamp servers that we can trust
exist everywhere in the Internet, we propose aጟᧄ⑲テ, ㎨↰ ⾫, ☨ୖ㆐ᐢ:‫ޟ‬Web਄ߩⶄᢙࡊ࡟ࠗࡗ

cheat-proof protocol for real-time gaming that has

the minimum latency. Theassumptions are: 1)ᖱႎㅢାቇળᛛⴚ⎇ⓥႎ๔, ISSN 0913-5685, ାቇᛛႎVol.107, No.129, pp.43-47, 2007.7

Time-stamp servers are available near each࡯ෳടဳࠝࡦ࡜ࠗࡦRPGࠍ◲ᤃߦ૞ᚑߔࠆ࠷࡯࡞‫ޠ‬,㔚ሶ

player that issue serially numbered time stamps.

 Webࠕࡊ࡝ࠤ࡯࡚ࠪࡦߣߒߡⶄᢙࡊ࡟ࠗࡗ࡯ෳട

2)There is no communication break down be-ဳRPGࠍ◲ᤃߦ૞ᚑߔࠆߚ߼ߩࡊࡠࠣ࡜ࡒࡦࠣ࠷

server. By this protocol, each player sends its ownߥᜰቯߢߐ߹ߑ߹ߥRPGࠍ૞ᚑߢ߈ࠆߎߣߢ޽ࠆ‫ޕ‬

tween the player and the nearest time-stamp࡯࡞ߦߟ޿ߡㅀߴࠆ‫⋡⸘⸳ߩ࡞࡯࠷ߩߎޕ‬ᮡߪන⚐action to the other player and also sends its hashࡊࡠࠣ࡜ࡒࡦࠣߩೋᔃ⠪߿ዊቇ↢ߥߤ߽ߎߩ࠷࡯࡞

server sends back to the player the signed hashߣࠦ࡯࠼ࠫࠚࡀ࡟࡯࠲߆ࠄߥࠆ‫ޕ‬GUIࠛ࠺ࠖ࠲ߪ

RPGߩࠠࡖ࡜ࠢ࠲ߩേ૞ࠍⷙቯߔࠆ⁁ᘒㆫ⒖࿑ࠍ

signature is an undeniable evidence of the action.

૞ᚑߔࠆߚ߼ߩ߽ߩߢ޽ࠆ‫ߪ࠲࡯࡟ࡀࠚࠫ࠼࡯ࠦޕ‬㧘to the nearest time-stamp server. The time-stampwith time and a serial number involved. The
The actions are checked if they are compatible㧙㧙

ߩኻ⽎࡙࡯ࠩߦ฽߼ߡ޿ࠆ‫ߪ࡞࡯࠷ޕ‬GUIࠛ࠺ࠖ࠲ࠥ ࡯ ࡓ ࠍ ᭴ ᚑ ߔ ࠆ ߚ ߼ ߩ C, PHP, JavaScript,

HTMLߥߤߩࠦ࡯࠼ࠍ⁁ᘒㆫ⒖࿑߆ࠄ↢ᚑߔࠆ‫↢ޕ‬ᚑߐࠇߚRPGߪ㧘Firefox, Safari, IEߣ޿ߞߚࠃߊ

D. Hanawa and T. Yonekura㧦“Improvement on the૶ࠊࠇࠆWebࡉ࡜࠙ࠩߢᠲ૞ߢ߈ࠆ‫ޕ‬RPGߩࡊ࡟ࠗ

in Distributed Virtual Environment”, The Visualࡗ࡯߇Webࡉ࡜࠙ࠩ਄ߢࠢ࡝࠶ࠢ߿ࠠ࡯౉ജࠍⴕ߁
ߣ㧘ߘߩ⚿ᨐ߇Webࠨ࡯ࡃߦㅍࠄࠇ࠺࡯࠲ࡌ࡯ࠬߦ⸥㍳ߐࠇࠆ‫⚿ߩߘޕ‬ᨐ㧘ࡊ࡟ࠗࡗ࡯ߩ౉ജ߇㧘ઁߩ

Accuracy of the Polynomial Form Extrapolation Model
Computer, Springer-Verlag Berlin/Heidelberg, Vol.23,
No.5, pp.369-379, 2007.5

ࡊ࡟ࠗࡗ࡯ߩࠕࡃ࠲߿ࡊ࡟ࠗࡗ࡯ߣ㑐ㅪࠍᜬߚߥ޿

㇌ᢥ㗴⋡ : ಽᢔ઒ᗐⅣႺߦ߅ߌࠆᄙ㗄ᑼဳᄖᝌࡕ࠺࡞

ࠥ࡯ࡓࠠࡖ࡜ࠢ࠲ߦᓇ㗀ࠍਈ߃ࠆߎߣ߇ߢ߈㧘ߐࠄߩ♖ᐲะ਄ In this paper, we studied the relationship be-ߦߘࠇ߇ઁߩࡊ࡟ࠗࡗ࡯ߩ↹㕙ߦ෻ᤋߐࠇࠆ‫⁁ޕ‬ᘒ

tween the accuracy of the extrapolating data andㆫ⒖࿑ߪ․ቯߩࡊࡠࠣ࡜ࡒࡦࠣ⸒⺆ߦߪଐሽߖߕߦ

the update interval in a distributed virtual envi-േ૞ࠍⷙቯߔࠆߚ߼ߩ㆏ౕߢ޽ࠆ‫ߡߒߘޕ‬㧘ߘߩ᭴ronment (DVE). We have already shown thatㅧߪන⚐ߥߚ߼ߦ◲නߦቇ⠌ߢ߈ࠆߣߣ߽ߦ㧘ࠥ࡯

numerical analysis can be applied to the ex-ࡓࠠࡖ࡜ࠢ࠲ߩᝄ⥰ᜰቯߦㆡߒߡ޿ࠆ‫ᧄޕ‬ႎ๔ߢߪ㧘

trapolating data between frames using paramet-࠷࡯࡞ࠍ↪޿ߡኈᤃߦWeb↪ߩRPGࠍ૞ᚑߢ߈ࠆ

rics calculated from the data over the last severalน⢻ᕈߦߟ޿ߡㅀߴࠆ‫ޕ‬

frames based on polynomial models. Based on the┻ේ㓁㆏, ጟᧄ⑲テ, ㎨↰ ⾫, ☨ୖ㆐ᐢ:‫⁁ޟ‬ᘒㆫ⒖࿑

properties of the polynomial models, we proposedળ 2 ⒳ ⎇ ⓥ ળ ࠨ ࠗ ࡃ ࡯ ࡢ ࡯ ࡞ ࠼ (CW) ╙ 8 ࿁ ⎇ ⓥ ળ ,which arrives at a discrete time period. Weࠍ↪޿ߚࡠࡏ࠶࠻೙ᓮࡊࡠࠣ࡜ࡒࡦࠣ‫ޠ‬,㔚ሶᖱႎㅢାቇ

the new method to extrapolate the attribute data

showed that theoretical models which approxi-

pp.5-8, 2007.12

 ࡟ࠧ␠߇㐿⊒ߒߚࡠࡏ࠶࠻Mindstorms NXTࠍmate the statistical error of extrapolating data

can be formulated based on parameters such asኻ⽎ߣߒߚࡠࡏ࠶࠻೙ᓮࡊࡠࠣ࡜ࡒࡦࠣⅣႺߦߟ޿

the update interval and changes in the data.

ߡㅀߴࠆ‫ߩߎޕ‬㐿⊒ⅣႺߪ⁁ᘒㆫ⒖࿑ࠍ↪޿ߡࡠࡏ

Theoretical models showed that the average error࠶࠻ࠍ೙ᓮߔࠆ‫߼ߚߩߘޕ‬, ࡊࡠࠣ࡜ࡒࡦࠣ⍮ࠄߥ

of the proposed method is less than that of cur-޿ሶଏߢ߽૶↪ߔࠆߎߣ߇ߢ߈, ኻ⽎࡙࡯ࠩߪࡠࡏ

rent methods. Finally, we confirmed that the࠶࠻ࠍ⥄ಽߩᕁ߁ࠃ߁ߦേ߆ߒߡߺߚ޿ੱߔߴߡߢ

proposed method can improve the accuracy in޽ࠆ‫⎇ᧄޕ‬ⓥߢߪ, ߎߩ࠷࡯࡞ߩ⸳⸘ߣታⵝߦട߃

comparison with current methods by conducting

ߡ, ߎߩ࠷࡯࡞ࠍ૶↪ߒߚࡠࡏ࠶࠻೙ᓮߩน⢻ᕈߦ

experiments with the motion of a pen for a seriesߟ޿ߡㅀߴࠆ‫ޕ‬
Shingo Yamakawa, Shohei Terada, Kunio Tojo, Yasu-

of letters written by a human.

hiro Okazaki, Yu Kakishima, Dai Hanawa, Kimio

Yasuki Sakurai, Masatoshi Takubo, Fumiaki Kato,

mation in the next generation home etwork”, Proc.

Strong Migration Mobile Agent̍, Proc. of IEEE PacificOguchi 㧦 “Traffic management for prioritized infor-

SPIE Vol. 6784, Network Architectures, Management,
and Applications V, pp. 6784R-1 - 6784R-11, 2007.11

Munenori Kai㧦̌A Code Transformation Method For
Rim Conference on Communications, Computers andSignal Processing㧔PACRIM̉07㧕, pp.485-488, 2007.8

㇌ᢥ㗴⋡㧦ᰴ਎ઍࡎ࡯ࡓࡀ࠶࠻ࡢ࡯ࠢߦ߅ߌࠆఝవᖱႎ
ߦኻߔࠆ࠻࡜ࡅ࠶ࠢ೙ᓮᴺ

 This paper first classifies the sensing data in

the next generation home network according to
its level of importance.

Traffic management forthe data sent by various applications is then de-scribed, ogether with some simulation results. In
the simulation, the proposed traffic management
method controlled the data correctly.

In order to keep high efficiency, high reliability,and fault tolerance in a distributed processing

system, we have been developing an autonomic
distributed

processing

system

by

using

a

Java-based mobile agent system. Since we used amobile agent system based on a weak migration

mobility in our system, it was difficult for users towrite an agent program freely which can resume

its process on destination computer from thepoint at which it stopped just before moving. In㧙㧙

this paper, we propose a new source code transformation method for any strong migration mo-ࡦ਄ߢ㧘ᄌ឵ߐࠇߚࠛ࡯ࠫࠚࡦ࠻ࠦ࡯࠼ࠍታⴕߢ߈

source code, which is easy to write for users, into࡯࡚ࠫࡦߢߪ㧘ᒝࡑࠗࠣ࡟࡯࡚ࠪࡦࠛ࡯ࠫࠚࡦ࠻ߩ

JavaVMs(Java Virtual Machines).

ߢ޽ߞߚߚ߼㧘ᄌ឵ᓟߩታⴕല₸߇‶†ߦߥࠆᰳὐ

bile agent code. The method can transform theࠆࠃ߁ߦߒߚ߽ߩߢ޽ࠆ‫ޕ‬AgentSphereߩᦨೋߩࡃ

the code to be executed on the ordinaryࠦ࡯࠼ࠍࠬ࠹࡯࠻ࡔࡦ࠻࡟ࡌ࡞ߢᄌ឵ߒߡ޿ߊ߽ߩ

ࠍᜬߞߡ޿ߚ‫⺰ᧄޕ‬ᢥߢߪ㧘ᣂߒ޿࠰࡯ࠬࠦ࡯࠼ߩ
ᄌ឵ᚻᴺࠍ᭴▽ߒ㧘AgentSphereߦ⚵ߺㄟ߻ᚻᴺࠍ
ឭ᩺ߒߡ޿ࠆ‫ߩߎޕ‬ᣂߒ޿ࡃ࡯࡚ࠫࡦߩ

የ㜞 ノ࡮↲᢫ቬᓼ㧦‫ޟ‬ㅢାㆃᑧࠍ⠨ᘦߒߚ࠲ࠬࠢࠬࠤࠫ

AgentSphereߢߪ㧘ᒝࡑࠗࠣ࡟࡯࡚ࠪࡦߩ࠰࡯ࠬࠦ

ࡘ࡯࡝ࡦࠣߩߚ߼ߩ࠲ࠬࠢ☸ᐲ⸃ᨆ‫ޠ‬㧘ᚑくᄢቇℂᎿቇ⎇ⓥႎ๔, Vol.44, No.1, pp.17-23, 2007.6

࡯࠼ߪ㧘ࡑࠗࠣ࡟࡯࡚ࠪࡦ๮઎ࠍ฽߻೙ᓮ᭴ㅧ࡟ࡌ ࠲ࠬࠢࠬࠤࠫࡘ࡯࡝ࡦࠣ໧㗴ߪ㧘ᒝNP࿎㔍ߥ⚵ߺ࡞ߢࠦ࡯࠼ᄌ឵ߐࠇࠆߎߣߦߥࠅ㧘ᄌ឵ㇱಽߩಣℂวࠊߖᦨㆡൻ໧㗴ߢ޽ࠆ‫ࠣࡦ࡝࡯ࡘࠫࠤࠬࠢࠬ࠲ޕ‬ࠝ࡯ࡃࡋ࠶࠼߇ૐᷫߐࠇߡࠛ࡯ࠫࠚࡦ࠻ߩಣℂᕈ⢻໧㗴ߦ߅޿ߡߪ㧘࠲ࠬࠢ㓸วߪߘߩవⴕ೙⚂ࠍ⴫⃻ࠍะ਄ߐߖࠆߎߣߦᚑഞߒߚ‫ޕ‬ߒߚ࠲ࠬࠢࠣ࡜ࡈߢਈ߃ࠄࠇࠆ‫ߩߘޕ‬㓙㧘వⴕᓟ⛯㑐ଥߦ޽ࠆ࠲ࠬࠢ߇⇣ߥࠆࡊࡠ࠮࠶ࠨߦഀࠅᒰߡࠄ

↰ਛᐽਯ࡮ਃᶆ ⚐࡮↲᢫ቬᓼ㧦‫ޟ‬㧯⸒⺆⥄േਗ೉ൻ࠻࡜

ࠇࠆ႐วߦߪ㧘ߘߩ࠲ࠬࠢ㑆ߦ࠺࡯࠲ㅢାᤨ㑆ࠍ⠨ࡦࠬ࡟࡯࠲ߦ߅ߌࠆࡑࠢࡠ࠲ࠬࠢ᜛ᒛ‫ޠ‬㧘ᚑくᄢቇℂᎿቇᘦߔࠆᔅⷐ߇↢ߓࠆ‫ޕ‬ᓥ᧪ߩࠬࠤࠫࡘ࡯࡝ࡦࠣ໧㗴⎇ⓥႎ๔, Vol.44, No.1, pp.35-44, 2007.6

ߩ⸃ᴺߢߪߘࠇࠄ࠺࡯࠲ㅢାᤨ㑆ߪᛒࠊࠇߡ޿ߥ߆ ㅙᰴಣℂ↪ߩC⸒⺆ߢ⸥ㅀߐࠇߚࡊࡠࠣ࡜ࡓࠍ⥄ߞߚ‫ޕ‬ㅢାᤨ㑆ࠍ⠨ᘦߒߚ࠲ࠬࠢࠬࠤࠫࡘ࡯࡝ࡦࠣ

േ⊛ߦਗ೉ൻߔࠆߚ߼㧘৻ㅪߩ⸃ᨆࠬ࠹࡯ࠫ߇ᔅⷐ

໧㗴ߢߪត⚝ⓨ㑆߇ࠃࠅᐢᄢൻߔࠆߎߣߦߥࠅ㧘ߐߣߥࠆ‫ߪࠇߘޕ‬㧘ਗ೉ᕈ⸃ᨆࠬ࠹࡯ࠫ㧘ታⴕᤨ㑆⸃ࠄߦ⸃ߊߎߣ߇㔍ߒ޿໧㗴ߣߥࠆ‫⺰ᧄޕ‬ᢥߢߪ㧘⸃ᨆࠬ࠹࡯ࠫ㧘࠲ࠬࠢ☸ᐲ⸃ᨆࠬ࠹࡯ࠫ㧘࠲ࠬࠢࠬࠤ

߇ሽ࿷ߒߘ߁ߥត⚝ⓨ㑆ࠍ⛉ࠅㄟߺ㧘࠲ࠬࠢⲢวߦ

ࠫࡘ࡯࡝ࡦࠣࠬ࠹࡯ࠫ㧘ਗ೉ൻࠦ࡯࠼↢ᚑࠬ࠹࡯ࠫ

ࠃߞߡត⚝ᤨ㑆ࠍ❗ዊߔࠆߚ߼ߩ࠲ࠬࠢ☸ᐲ⸃ᨆࠍߢ᭴ᚑߐࠇࠆ‫ߦ࠭࡯ࡓࠬ߇ࠫ࡯࠹ࠬߩࠄࠇߎޕ‬ㅪ៤ឭ᩺ߔࠆ‫⸃ߩߎޕ‬ᨆߦࠃߞߡ㧘ㇱಽ࠲ࠬࠢࠣ࡜ࡈࠍ

ߔࠆߚ߼ߦߪ㧘ోߡߩࠬ࠹࡯ࠫ㑆ߢ౒᦭ߢ߈ࠆ࡝࠰

᭴ᚑߔࠆⶄᢙߩ࠲ࠬࠢࠍ㧝ߟߩ࠲ࠬࠢߦⲢวน⢻ߥ㧘࡯ࠬ߇ᔅⷐߢ޽ࠆ‫⪺ޕ‬⠪ࠄߪ㧘ߔߢߦC࠰࡯ࠬࠦ࡯

ၮᧄ⊛ߥ᭴ㅧߣ᧦ઙࠍ᣿ࠄ߆ߦߒߚ‫ߚ߹ޕ‬㧘⸃ߣߒ࠼਄ߦࡊ࡜ࠣࡑ࠺ࠖ࡟ࠢ࠹ࠖࡉࠍ↪޿ߡࠬ࠹࡯ࠫ㑆ߡᓧࠄࠇࠆࠬࠤࠫࡘ࡯࡞㐳ࠍߢ߈ࠆ㒢ࠅ⍴ߊߔࠆߚߢ⸃ᨆᖱႎࠍฃߌᷰߔߎߣ߇ߢ߈ࠆࠃ߁ߥ౒᦭࡝࠰

߼㧘ㅢାߢࡀ࠶ࠢߣߥࠆ࠲ࠬࠢࠍⶄ⵾ߒߡㅢାࠍ೥

࡯ࠬࠍ⸳⸘ߒߚ‫ޕ‬ᓥ᧪ߎߩ౒᦭࡝࠰࡯ࠬߪ㧘࠲ࠬࠢ

㒰ߔࠆᣇᴺ߽ឭ᩺ߔࠆ‫ࠄࠇߎޕ‬㧞ߟߩᚻᴺࠍ↪޿ߚߩᖱႎࠍ⴫ߔ࠰࡯ࠬࠦ࡯࠼ࠗࡦ࠲ࡈࠚ࡯ࠬ㧘ㅢା࠺ត⚝ࠕ࡞ࠧ࡝࠭ࡓࠍ㧘࡜ࡦ࠳ࡓߦ↢ᚑߐࠇߚ࠲ࠬࠢ

࡯࠲ߦ㑐ߔࠆᖱႎࠍᜬߟㅢାᖱႎࠗࡦ࠲ࡈࠚ࡯ࠬ㧘

DOALL࡞࡯ࡊߦ㑐ߔࠆ⹦⚦ߥᖱႎ㧘ࠬࠤࠫࡘ࡯࡝

ࠣ࡜ࡈࠍᆎ߼㧘ࡠࡏ࠶࠻೙ᓮ㧘⇹ⴕ೉ਸ਼▚ߣ޿ߞߚታ㓙ߩࠕࡊ࡝ࠤ࡯࡚ࠪࡦ߿㧘SPEC fpppߣ޿߁ࡌࡦ

ࡦࠣ⚿ᨐߣ޿ߞߚ୘೎ߩࡈࠔࠗ࡞ߦಽ߆ࠇߡ޿ߚ‫ޕ‬࠴ࡑ࡯ࠢࡊࡠࠣ࡜ࡓߩ࠲ࠬࠢ᭴ㅧߦㆡ↪ߒ㧘⦟ᅢߥᧄ⺰ᢥߢߪ㧘࠰࡯ࠬࠦ࡯࠼਄ߢߎࠇࠄߩࠗࡦ࠲ࡈࠚ

ࠬࠤࠫࡘ࡯࡝ࡦࠣ⚿ᨐ߇ᓧࠄࠇࠆߎߣࠍ␜ߔ‫ޕ‬࡯ࠬ߇৻ర▤ℂߢ߈ࠆࠃ߁ߦᖱႎࠍ⛔วߒ㧘ਗ೉ൻߩߚ߼ߩᖱႎࠍߔߴߡ࠰࡯ࠬࠦ࡯࠼਄ߩࡊ࡜ࠣࡑ࠺

↰ਭ଻㓷ବ࡮ᰞ੗ᐽ᮸࡮ട⮮ผᓃ࡮↲᢫ቬᓼ㧦‫ޟ‬ᒝࡑࠗࠣ

ࠖ࡟ࠢ࠹ࠖࡉߦ෻ᤋߔࠆߎߣࠍឭ᩺ߔࠆ‫ߚ߹ޕ‬㧘࠰࡟࡯࡚ࠪࡦࡕࡃࠗ࡞ࠛ࡯ࠫࠚࡦ࠻ࠍታ⃻ߔࠆࠦ࡯࠼ᄌ឵

࡯ࠬࠦ࡯࠼ਛߩ㓏ጀ⊛ߥ೙ᓮ᭴ㅧࠍࡑࠢࡠ࠲ࠬࠢߣ

2007.6ᝒ߃㧘ߘߩࡑࠢࡠ࠲ࠬࠢౝㇱߩࠬࠤࠫࡘ࡯࡝ࡦࠣ⚿ᚻᴺ‫ޠ‬㧘ᚑくᄢቇℂᎿቇ⎇ⓥႎ๔, Vol.44, No.1, pp.25-33,

ᨐࠍዉ߈಴ߒߡో૕ߩࠬࠤࠫࡘ࡯࡝ࡦࠣߦ೑↪ߔࠆ ╩⠪ࠄߪ㧘ߎࠇ߹ߢߦAgentSphereߣ๭߱㧘Javaߚ߼ߦ㧘ฦ⸃ᨆࠬ࠹࡯ࠫߩㆡ↪㗅ᐨࠍ㓏ጀ⊛ߥ᭴ㅧࡌ࡯ࠬߩᒝࡑࠗࠣ࡟࡯࡚ࠪࡦࡕࡃࠗ࡞ࠛ࡯ࠫࠚࡦ࠻

ߦᡷ⦟ߔࠆᣇᴺ߽ឭ᩺ߔࠆ‫ޕ‬ࠪࠬ࠹ࡓࠍ㐿⊒ߒߡ߈ߚ‫ߪࠇߎޕ‬㧘࡙࡯ࠩ߇⸥ㅀߒ
ߚᒝࡑࠗࠣ࡟࡯࡚ࠪࡦߩࠛ࡯ࠫࠚࡦ࠻ࠦ࡯࠼ࠍ㧘⥄␹↰⧐ᢥ࡮㡆የਂม㧦‫ޟ‬エᑼ㊁⃿ࡏ࡯࡞ߣࡃ࠶࠻ߩⴣ⓭ࠪേ⊛ߦᒙࡑࠗࠣ࡟࡯࡚ࠪࡦߩࠛ࡯ࠫࠚࡦ࠻ࠦ࡯࠼ߦ

ࡒࡘ࡟࡯࡚ࠪࡦ‫ޠ‬,ᣣᧄᯏ᪾ቇળ⺰ᢥ㓸㧘㧯✬㧘Vol.73㧘

࠰࡯ࠬࠦ࡯࠼ᄌ឵ߒ㧘ߘࠇ߆ࠄㅢᏱߩJava઒ᗐࡑࠪNo729㧘pp1307-1313㧘2007-5

㧙㧙

 For a rubber baseball, which is a baseball madeterms of virtual private network (VPN) manage-

it very difficult to increase the coefficient of res-

IP packets are transmitted along a Labelment, traffic engineering, etc. In MPLS networks,

entirely of rubber, the softness of the ball makes

Switched Path (LSP) established between edge

titution (COR) of the ball-bat impact by modifying

nodes. To improve the efficiency of resource use in

the stiffness of the bat. In order to direct modifi-

MPLS networks, it is essential to utilize the LSPs

cation of the baseball bat, precise analysis of theefficiently.

impact phenomenon is required. In order to es-

This paper proposes an optimal LSP selection

tablish a powerful tool for analyzing the base-ball-bat impact, numerical analysis programs

method in MPLS networks, on the assumption

method have been developed. After verifying theestablished as a pair (both-way operation) andthat both the upward and downward LSPs are

based on the three-dimensional finite element

multiple LSP pairs are established between thedeveloped programs by comparing calculated andsame pair of edge nodes. It is supposed that theexperimental results, the impact characteristics

optimal LSP pair is selected from among multipleof an aluminum bat in collision with a rubber

LSP pairs for each service request andbaseball were investigated precisely. The results

upward and downward bandwidths are allocatedshow that the COR decreases with increasing

simultaneously in the selected LSP pair. It is

impact velocity, and that the COR is greatly af-

demonstrated by simulation evaluations that thefected by the hoop rigidity of the barrel of the bat,proposal method could reduce the total amount of

which has a hollow shell structure. Moreover, atthe bandwidth required by up to 15% comparedhigh impact velocities, the COR is maximized atwith the conventional selection method.

an impact location about 600 mm from the end of
the bat handle.

Taku Itoh and Yoshifumi Kanda㧦“ An Application for
Reconstructing Surfaces from 3D Scattered Point

Data for Use on Dual-Core Systems”, In Proceedingsof ICNAAM 2007, pp. 275-279, Corfu, 2007.9

both

S. Tsumura and S. Kuribayashi㧦“Delayed resource
allocation method for a joint multiple resource management system”, TPM2-3 APCC2007, 2007.10㇌ᢥ㗴⋡㧦⾗Ḯഀᒰߡㆃᑧࠍ⸵ኈߔࠆⶄᢙ⒳೎⾗Ḯหᤨഀࠅᒰߡᣇᑼ ᧄ⺰ᢥߢߪ㧘OpenMPࠍ↪޿ߚ࠺ࡘࠕ࡞ࠦࠕࠪࠬ
࠹ࡓะߌࠕࡊ࡝ࠤ࡯࡚ࠪࡦ૞ᚑᴺߩ1ߟࠍㅀߴߡ޿
ࠆ‫ᧄޕ‬ᣇᴺߢߪ㧘ห৻ߩ⋡⊛ࠍ㆐ᚑߔࠆߚ߼ߩ2ߟߩ⇣ߥࠆᣇᴺࠍOpenMPߦࠃߞߡਗ೉ߦ૶↪ߔࠆ‫ޕ‬ౕ૕଀ߣߒߡ㧘㔌ᢔὐ⟲߆ࠄߩ3ᰴరᒻ⁁ౣ᭴ᚑࠍ Abstract—In computer networks including thenext generation network (NGN), both computing
and network resources are required to be allo-cated simultaneously to each service request. 
It is possible to improve the efficiency of resource㆐ᚑߔߚ߼ߩࠕࡊ࡝ࠤ࡯࡚ࠪࡦࠍ૞ᚑߒߚ‫ޕ‬หࠕࡊuse if we delay the start of resource allocation

Unity implicits)ᴺߣDelaunayಽഀᴺߩਔᣇᴺ߆ࠄ

sources are not available when the request oc-࡝ ࠤ ࡯ ࠪ ࡚ ࡦ ߪ 㧘 MPU(Multi-level Partition ofᚑࠆ‫ޕ‬ᢙ୯ታ㛎ߢߪ㧘ߎߩࠕࡊ࡝ࠤ࡯࡚ࠪࡦ߇㧘MPU
ᴺߩࡠࡃࠬ࠻ᕈߣDelaunayಽഀᴺߩ㜞ㅦᕈࠍ૬ߖ
ᜬߞߡ޿ࠆߎߣࠍ଀⸽ߒߚ‫ޕ‬
S. Kuribayashi and S. Tsumura㧦“Optimal LSP se-

lection method in MPLS networks”, Pacrim07, 2007.8
㇌ᢥ㗴⋡㧦㧹㧼㧸㧿✂ߦ߅ߌࠆᦨㆡ㧸㧿㧼ㆬᛯᣇᑼ Multi-Protocol Label Switching (MPLS) had

been deployed by many data networking service
providers because of its undeniable potential in㧙㧙

rather than rejecting the request if required recurs.

 This paper assumes that both computing andnetwork resources are allocated per service request , and proposes an new joint resource allo-

cation method that permits the start of resource
allocation to be delayed if the required resources
are not available, on condition that the service
shall be completed within a maximum permissible service completion time.

It is demonstrated

by simulation evaluations that the proposedmethod could reduce the total amount of resource

services in all-IP networks, it is necessary to al-eration patterns, compared with the conventional

ability) and the network resource(bandwidth)

locate both the computing resource (processing

required by up to 25% regardless of request gen-simultaneously.

method without delayed resource allocation.

This

paper

discusses

congestion

control

K. Hatakeyama, S. Tsumura and S. Kuribayashi㧦

schemes for all-IP based networks, based on the

ceptual video quality deterioration in all IP-based

This paper first analyzes congestion control

joint allocation of multiple types of resources.

“Packet transmission control of preventing the per-schemes used in existing services and networks,

network”, ICOIN2008, 2008.1

and proposes basic principles on congestion con-㇌ᢥ㗴⋡㧦ࠝ࡯࡞㧵㧼ࡀ࠶࠻ࡢ࡯ࠢߦ߅޿ߡ࡙࡯ࠩⷞ⡬trol for all-IP networks, assuming the joint allo-ຠ⾰ഠൻࠍ㒐ᱛߔࠆࡄࠤ࠶࠻ォㅍᣇᑼ

cation of multiple types of resources.

 Streaming media distribution services has been

schemes are proposed to materialized a part of

spreading rapidly, in which users view movies

basic principles. First scheme is a flexible re-and music programs delivered over IP-basedsource reallocation scheme in which a part of

networks. In IP-based networks where resources

network resources not fully used in one center areare shared but cannot be reserved, it is difficult toreallocated to other center. Second scheme is aprevent temporary congestion from occurring.

smart request restriction scheme to ease the

Therefore, when temporary network congestion

congestion, which does not restrict all requests

occurs, some packets will be discarded, resulting

uniformly but restricts only those requests thatin the deterioration in the user’sperceptual video

require a large amount of resource of the con-quality.

gested resource type. Finally, we demonstrate the This paper first evaluates the relationship be-effectiveness of the proposed schemes by nu-

tween packet discarding patterns and perceptual

merical computation and simulation evaluations.

video quality is evaluated, assuming the deliveryof UDP-based MPEG2 streaming videos. Basedon the evaluation, this paper proposes the opti-

Next, two㤥↰ᐢ᮸࡮⇗ጊ⾫৻࡮ᩙᨋિ৻㧦‫ⷞࠩ࡯࡙ޟ‬⡬ຠ⾰ഠൻࠍ

mal packet discarding patterns which do not leadto any deterioration in the perceptual video qual-࿁ㆱߔࠆࠬ࠻࡝࡯ࡒࡦࠣ㈩ାࡄࠤ࠶࠻ォㅍᣇᑼߩ⹏ଔ‫ޠ‬㧘

ity and indicates that the perceptual video quality

deterioration can be avoided by selecting an ap- ᧄ⺰ᢥߪ㧘㨁㧰㧼ࡌ࡯ࠬߩ㧹㧼㧱㧳㧞ࠬ࠻࡝࡯ࡒ

number of discarding packets is less than severalⷞ⡬ຠ⾰ߩ㑐ଥࠍ⹏ଔߒ㧘ߘߩ⹏ଔ⚿ᨐߦၮߠ߈࡙

tical applicability of the proposed method is alsoᴺߣߘߩታ⃻᧦ઙࠍ᣿ࠄ߆ߦߔࠆ‫ࠅࠃߦࠇߎޕ‬㧘ోᚑくᄢቇℂᎿቇ⎇ⓥႎ๔, Vol.44,No.1,pp.45-48, 2007

propriate packet discarding pattern, if the total

ࡦࠣ㈩ାࠍ೨ឭߦ㧘ࡄࠤ࠶࠻ᑄ᫈ࡄ࠲࡯ࡦߣ࡙࡯ࠩ

percent of all packets being generated. The prac-࡯ࠩⷞ⡬ຠ⾰ࠍഠൻߐߖߥ޿ᦨㆡߥࡄࠤ࠶࠻ᑄ᫈ᣇ

examined.

ォㅍࡄࠤ࠶࠻ᢙߩᢙ㧑⒟ᐲએਅߩࡄࠤ࠶࠻ᑄ᫈߇ᔅ
ⷐߥ৻ᤨ⊛ߥࡀ࠶࠻ࡢ࡯ࠢユマߢ޽ࠇ߫㧘ࡄࠤ࠶࠻

K. Hatakeyama and S. Kuribayashi㧦“Proposed con-ᑄ᫈ߩ઀ᣇߦࠃࠅຠ⾰ഠൻࠍ࿁ㆱߔࠆߎߣ߇น⢻ߣNGN”, ICACT2008, pp.1082-1087, 2008.2

ቯࡔ࡯ࠞߩ╓ภൻࠍ೨ឭߦ⹏ଔࠍታᣉߒߚߚ߼㧘ߎ㇌ᢥ㗴⋡㧦NGNࠍ฽߻ࠝ࡯࡞㧵㧼ࡀ࠶࠻ࡢ࡯ࠢߦ߅ߌࠆ

ൻߔࠆߣ⠨߃ࠄࠇࠆ߇㧘੹࿁ឭ᩺ߒߚᦨㆡᑄ᫈ࡄ࠲

߰ߊߘ߁೙ᓮᣇᑼ

࡯ࡦߩ᳞߼ᣇߥࠄ߮ߦߘߩ௑ะߪઁߦ߽ᵹ↪น⢻ߢߥࠆ‫ߚ߹ޕ‬㧘੹࿁ߩ⹏ଔߪ╓ภൻㅦᐲ㧢㧹bps㧘․gestion control method for all-IP networks includingࠇࠄ᧦ઙ߇ᄌࠊࠇ߫ᦨㆡߥᑄ᫈ࡄ࠲࡯ࡦߩᢙ୯߽ᄌ

 All-IP networks, including next generation

޽ࠆ‫ޕ‬

networks (NGNs), in which IP technology is used

to integrate all services, are being studied or in-troduced in earnest worldwide. To support any⇗ጊ⾫৻࡮ᩙᨋિ৻㧦‫࡞࡯ࠝޟ‬㧵㧼ࡀ࠶࠻ࡢ࡯ࠢߦ߅ߌࠆ߰ ߊ ߘ ߁ ೙ ᓮ ᣇ ᑼ ߩ ឭ ᩺ ‫ޠ‬㧘 ᚑ く ᄢ ቇ ℂ Ꮏ ቇ ⎇ ⓥ ႎ㧙㧙

๔,Vol.44,No.2, 2007

holds contents can provide other peers with the ᧄ⺰ᢥߪ㧘ᣢሽࠨ࡯ࡆࠬ߿ᣢሽࡀ࠶࠻ࡢ࡯ࠢߢᬌ
⸛ߐࠇߡ޿ࠆ߰ߊߘ߁೙ᓮᣇᑼߩಽᨆࠍ〯߹߃㧘ᰴ਎ઍࡀ࠶࠻ࡢ࡯ࠢࠍ฽߻ࠝ࡯࡞IPࡀ࠶࠻ࡢ࡯ࠢߩ
߰ߊߘ߁೙ᓮߦኻߔࠆၮᧄ⊛ߥ⠨߃ᣇࠍឭ᩺ߔࠆ‫ޕ‬߹ߚ㧘ᓥ᧪߶ߣࠎߤᬌ⸛߇ⴕࠊࠇߡ޿ߥ޿ⶄᢙ⾗Ḯࠍหᤨߦഀᒰߡࠆߎߣࠍ೨ឭߣߒߚ߰ߊߘ߁ኻ╷ߣߒߡ㧘․ቯ⾗Ḯ⒳೎ߦ⌕⋡ߒߚേ⊛߽฽߼ߚ⾗ḮⲢㅢᣇᑼߣ․ቯ⾗Ḯ⒳೎ߦ⌕⋡ߒߚ߰ߊߘ߁ⷙ೙ᣇᑼ

contents in peer-to-peer (P2P) overlay networks.
Here, contents peers are mainly realized inless-reliable and low-performance personal com-puters. Multimedia streaming is more significant
than downloading ways in multimedia applica-

tions from security and economical reasons. We
discuss distributed multi-source streaming models to support peers with reliable and scalableࠍᣂߚߦឭ᩺ߒ㧘ߘߩ᦭ലᕈࠍ᣿ࠄ߆ߦߔࠆ‫ޕ‬

multimedia streaming service. Here, a collection

H. Fukuda, V. Barolli, L. Barolli, and M. Takizawa 㧦packets of a multimedia content to a leaf peer to“A Marketable Quality and Profitability Model Considering Service Providers and Consumers Relation”,

International Journal of Business Data Communica-

tions and Networking (IJBDCN), Vol.3, No.2, pp.51-71,
April-June 2007㇌ᢥ㗴⋡: ࠨ࡯ࡆࠬឭଏ⠪ߣ೑↪⠪ࠍ⠨ᘦߒߚࡑ࡯ࠤ࠶
࠻น⢻ຠ⾰ߣ෼⋉ᕈߩࡕ࠺࡞

 In this paper, we present a model to evaluate

both: marketable quality and the rofitability con-sidering service providers and consumers relation.
We use the real values of some leading Japanesemanufacturing corporations as virtual data ofservice providers to our proposed model to analyze its accuracy. By analysis we found that thetheoretical and real standard values of the marketable quality indicator for the rate of operation
at the break event point were both 0.6 (that is60%). This shows that the proposed model has agood approximation. From the fair relation of

network providers and consumers, we provided
the network pricing guidelines for the maximum
profitability while enhancing the marketable
quality.

T. Enokido, Y. Tanaka, V. Barolli, and M. Takizawa㧦
“Distributed

Multi-Source

Streaming

ModelsinPeer-to-Peer Overlay Networks”, Journal of Simula-tion Modeling Practice and Theory, Vol.15, No.4,
pp.426-464, April 2007㇌ᢥ㗴⋡: P2Pࠝ࡯ࡃ࡯࡟ࠗ࡮ࡀ࠶࠻ࡢ࡯ࠢߢߩಽᢔဳᄙ
࠰࡯ࠬ࡮ࠬ࠻࡝࡯ࡒࡦࠣ࡮ࡕ࠺࡞

 Multimedia contents are distributed to peer
computers (peers) and a contents peer which㧙㧙

of multiple contents peers in parallel transmit

realize the reliability and scalability. Each of thecontents peers sends different packets from theother contents peers at slower rate. Even if not
only some number of peers stop by fault and are

degraded in performance but also some number ofpackets are lost and delayed in networks, a leaf

peer has to receive every data of a content at therequired rate. We discuss how to replicate data ofa multimedia content by creating a parity packet

for some number of packets and to allocate pack-ets to each contents peer so that a leaf peer candeliver a packet without waiting for preceding

packets from other contents peers in presence ofthe faults. Next, multiple contents peers are required to be synchronized to send packets to aleaf-peer so that the leaf-peer can receive every
data of a content at the required rate. We discussa pair of gossip-based flooding-based protocols,

DAG (directed acyclic graph)-based coordination

protocol (DCoP) and tree-based (TCoP) coordina-tion protocol to synchronize multiple contents

peers to send in parallel send to a leaf peer. First,
some number of contents peers are selected andstart transmitting packets to a leaf peer. Then,each of the selected peers selects some number ofpeers. Here, a peer can be selected by multiple

peers in DCoP but by at most one peer in TCoP.
Finally, every contents peer transmits packets tothe leaf peer at the allocated rate. We evaluate

the coordination protocols DCoP and TCoP interms of how long it takes and how many messages are transmitted to synchronize multiple
contents peers.

networks. An application program to be per-S. Itaya, T. Enokido, and M. Takizawa㧦“Scalable

formed on a faulty computer can be performed onanother operational computer by moving theMultimedia Streaming Model in Heterogeneous Net-

program in the mobile agent model. In this paper,

works”, International Journal of High Performance

we discuss a transactional agent model where a

Computing and Networking (IJHPCN), Vol.5, No.1/2,

reliable and efficient application for manipulating

pp.62-74, 2007

objects in multiple computers is realized in the㇌ᢥ㗴⋡: ⇣⒳ࡀ࠶࠻ࡢ࡯ࠢߢߩᄢⷙᮨࡑ࡞࠴ࡔ࠺ࠖ

mobile agent model. In the transactional agentࠕ࡮ࠬ࠻࡝࡯ࡒࡦࠣߩߚ߼ߩࡕ࠺࡞

model, only a small part of the application pro- In a Peer-to-Peer (P2P) overlay network, agram named routing subagent moves aroundlarge number and various types of peers are co-computers. A routing subagent autonomously

operating by exchanging multimedia contents.

finds a computer which to visit next. We discuss aHere, multimedia streaming is a key technology

hierarchical navigation map which computer

to realize multimedia applications. In multimedia

should be visited price to another computer in a

streaming applications, multimedia contents aretransactional agent. A routing subagent makes arequired to be efficiently delivered to processes indecision on which computer visit for the hierar-a real-time manner. Some contents peer may notchical navigation map. Programs manipulating

send packets at a required rate and a communi-

objects in a computer are loaded to the computer

cation channel may not support enough Quality ofon arrival of the routing subagent in order to re-Service (QoS). In this paper, we newly discuss a
Heterogeneous

Asynchronous

Multi-

duce the communication overhead. This part of

Sourcethe transactional agent is a manipulating sub-Streaming (HAMS) model where multiple con-agent. The manipulation subagent still exists ontents peers transmit packets of a multimedia

the computer even after the routing subagent

content to a requesting leaf peer to realize highleaves the computer in order to hold objects until

reliability and scalability.

the commitment. We assume every computer may
stop by fault while networks are reliable. ThereY. Tanaka, N. Hayashibara, T. Enokido, and M. Takizawa㧦“A Mobile Agent Model for Fault-Tolerant

are kinds of faulty computers for a transactional

agent; current, destination, and sibling com-

Manipulation on Distributed Objects”, International

puters where a transactional agent now exists,

Journal of Cluster Computing (IJCC), Vol.10, No.1,

will move, and has visited, respectively. The types

pp.81-93, March 2007

of faults are detected by neighbouring manipula-㇌ᢥ㗴⋡: ಽᢔࠝࡉࠫࠚࠢ࠻ࠍᠲ૞ߔࠆߚ߼ߩ⒖േဳࠛ

tion subagents by communicating with each other.

࡯ࠫࠚࡦ࠻࡮ࡕ࠺࡞

If some of the manipulation subagents are faulty,

 In this paper, we discuss how to realize

the routing subagent has to be aborted. However,

fault-tolerant applications on distributed objects.

the routing subagent is still moving. We discuss

Servers supporting objects can be fault-tolerant

how to efficiently deliver the abort message to theby taking advantage of replication and check-moving routing subagent. We evaluate thepointing technologies. However, there is no dis-transactional agent model in terms of how long it

cussion on how application programs being per-takes to abort the routing subagent if some com-formed on clients are tolerant of clients faults.
For

example,servers

might

block

in

puter is faulty.

thetwo-phase commitment protocol due to the client
fault. We newly discuss how to make application

K. Watanabe, Y. Nakajima, T. Enokido, and M. Ta-

mobile agent technologies where a program can

Networks”, ACM Transaction on Autonomous andprograms fault-tolerant by taking advantage ofmove from a computer to another computer inkizawa㧦“Ranking Factors in Peer-to-Peer Overlay
Adaptive Systems(TAAS), Vol.2, No.3, Article 11,㧙㧙

Service Oriented Computing and Applications (SOCA),

pp.11:1-11:26, Sept. 2007㇌ᢥ㗴⋡: 㧼㧞㧼ࠝ࡯ࡃ࡟ࠗ࡮ࡀ࠶࠻ࡢ࡯ࠢߢߩ࡜ࡦࠠ

Vol.1, No.3, pp.213-222, 2007

ࡦࠣ࿃ሶ

 A large number of peer processes are distrib-㇌ᢥ㗴⋡: ડᬺߩࠨ࡯ࡆࠬຠ⾰ߣ෼⋉ᕈࠍะ਄ߐߖࠆߚ

difficult, may be impossible for a peer to perceive

computing model for enhancing service quality ofuted in a peer-to-peer (P2P) overlay network. It is߼ߩ⸘▚ࡕ࠺࡞㧦ੑߟߩౕ૕⊛੐଀ߦࠃࠆ⹏ଔ

 In this paper, we introduce and evaluate a
consumers and increasing profitability of corpo-

the membership and location of every resource

rations. We discuss the model prediction of theobject due to the scalability and openness of aturning and transition period based on data from

P2P network. In this paper, we discuss a fully

two different sources. By applying these real data

distributed P2P system where there is no cen-of some leading manufacturing corporations intralized controller. Each peer has to obtain ser-Japan we analyze the model accuracy. By using

vice information from its acquaintance peers andthe proposed model, the corporation can increase

also sends its service information to the ac-their profit by enhancing the marketable quality.

quaintance peers. An acquaintance peer of a peer

From the analysis, we conclude that even there

p is a peer about whose service the peer p knows

are some differences between two sources data,

and with which the peer p can directly commu-

the proposed model give a good approximation

nicate in an overlay network. Some acquaintanceand prediction of the turning and transition pe-peer might hold obsolete service information andriod of Japanese economy.

might be faulty. Each peer has to find a moretrustworthy one in acquaintance peers. There aremany discussions on how to detect peers which

V. Barolli, H. Fukuda, L. Barolli, and M. Takizawa㧦

nipulate an object without being granted accesssidering Network Externalities”, Journal of Informa-hold a target object. However, a peer cannot marights (permissions). In addition to detecting

what peers hold a target object, we have to findpeers granted access rights to manipulate the“An Enhanced Network Service Pricing Model Contion Systems and e-Business Management (ISeB),
Vol.6, No.1, pp.5-24, 2008

target object. The trustworthiness of each ac-㇌ᢥ㗴⋡: ࡀ࠶࠻ࡢ࡯ࠢ࡮ࠛࠢࠬ࠹࠽࡝࠹ࠖࠍ⠨ᘦߒߚand ranking factor in this paper. The satisfiabil-

for marketable quality and profitability. We de-quaintance is defined in terms of the satisfiability᜛ᒛࡀ࠶࠻ࡢ࡯ࠢ࡮ࠨ࡯ࡆࠬ࡮ࡊ࡜ࠗࠪࡦࠣߩࡕ࠺࡞

ity of an acquaintance peer shows how much eachpeer can trust the acquaintance peer through di-rect communication to not only detect target ob-

jects but also obtain their access rights. On theother hand, the ranking factor of an acquaintancepeer indicates how much the acquaintance peer istrusted only by trustworthy acquaintance peers

differently from the traditional reputation concept. We evaluate how the trustworthiness ofacquaintance peer is changing through interactions among peers in detection algorithm.

V. Barolli, H. Fukuda, L. Barolli, and M. Takizawa :“A Computing Model for Enhancing Service Quality

and Increasing Profitability of Corporations㧦Model
Evaluation Based on Two Different Sources Data”,㧙㧙

 In this paper, we provide an evaluation model
fine the marketable quality as a qualitative as-pect of profitability. Not always there is a clear
tradeoff relation between marketable quality andprofitability. Therefore, it is important to discover
how to increase the profitability by enhancing
marketable quality. We apply the real values ofsome leading manufacturing Japanese corporations to our proposed model to analyze its accu-

racy. From the analysis, we found that theoreticaland real standard values of the marketable qual-

ity indicator were both 0.6. This shows that the
proposed model has a good approximation. From
the fair relation of network service providers

and consumers, we present the network pricing
guidelines for the maximum profitability, while

enhancing the marketable quality. Also, we en-values which are changeable from current value,

hance our proposed network service pricing modelat each round. We discuss a coordination protocol

considering network externalities.

among multiple values in a type of heterogeneous

system, where some pair of processes has differ-

A. Durresi, L. Barolli, A. Koyama, and M. Takizawa :ent precedent relations on the same domain. A“Ubiquitous QoS Communications Using Scalable

process learns the precedent relations of anotherSatellite Networking”, Journal of Ubiquitous Computing
2008

and

Intelligence(JUCI),

process through exchanging values. A process

Vol.2,No.1,pp.1-8,

takes a value that other processes can take byusing the knowledge on the other processes.

㇌ᢥ㗴⋡: ᄢⷙᮨⴡᤊࡀ࠶࠻ࡢ࡯ࠢࠍ↪޿ߚ࡙࡯ࡆࠠ࠲
ࠬ㧽㨛㧿ㅢା

 Satellite networking will be an important

K. Ozaki, T. Enokido, and M. Takizawa㧦“Coordination

systems. Satellite networks will be especially

Network”, International Journal of Mobile Informa-component of future ubiquitous communications

useful to interconnect remote sensor networks.
Therefore, satellite networks should provide theneeded QoS, differentiation of services and at thesame tame keep the required scalability. We pro-Protocols for a Reliable Sensor, Actuator, and Devicetion Systems (IJMIS), Vol.4, No.2, 2008, pp.147-161

㇌ᢥ㗴⋡: ࠮ࡦࠨ࡯࡮ࠕࠢ࠴ࡘࠛ࡯࠲࡮࠺ࡃࠗࠬ࡮ࡀ࠶
࠻ࡢ࡯ࠢߩද⺞ࡊࡠ࠻ࠦ࡞

pose a new Diffserv-based scheme of bandwidth
allocation during congestion, called proportional

allocation of bandwidth (PAB). PAB can be used

in GEO, MEO and LEO satellite networks. In

PAB, during congestion all flows get a share of IP
available bandwidth, which is in proportion totheir subscribed information rate. We suggest amethod for implementing PAB without storing
per-flow state, which makes the scheme scalable

and simple. We show by simulation the advantages of using PAB in IP satellite networks.

A. Aikebaier, T. Enokido, and M. Takizawa㧦“A Distributed Coordination Protocol in an Order- Heterogeneous Group”, International Journal of Web andGrid Services (IJWGS), Vol.4, No.1, pp.5-23, 2008㇌ᢥ㗴⋡: 㗅ᐨ⇣⒳ࠣ࡞࡯ࡊߢߩಽᢔද⺞ࡊࡠ࠻ࠦ࡞

 In Peer-to-Peer (P2P) overlay networks, a groupof multiple peer processes are required to cooperate to make a global decision. Each process

takes a value and exchanges values with theother processes until the agreement condition issatisfied. We define existentially and preferen-

tially precedent relations which show what values

a process can take after taking a value and which

value a process prefers to another value, respectively. Based on the precedent relations, eachprocess takes the most preferable value in the㧙㧙

 A sensor, actuator, and device network (SADN)

is composed of three types of nodes, which aresensor, actuator, and actuation device nodes.

Sensor nodes and actuator nodes are intercon-

nected in wireless networks as discussed in wireless sensor and actuator networks (WSANs). Ac-

tuator nodes and device nodes are interconnected
in types of networks, i.e. wireless and wired network. Sensor nodes sense an physical event andsend sensed values of the event to actuator nodes.

An actuator node makes a decision on proper actions on receipt of sensed values and then issues

the action requests to the device nodes. A device
node really acts to the physical world. For exam-

ple, moves a robot arms by performing the action
on receipt of the action request. Messages may belost and nodes may be faulty. Especially, mes-

sages are lost due to noise and collision in awireless network. We propose a fully redundant

model for an SADN where each of sensor, actuator, and device functions is replicated in multiple

nodes and each of sensor-actuator and actuator-device

communicationisrealizedinmany-to-many type of communication protocols.

Even if some number of nodes are faulty, theother nodes can perform requested tasks. Here,each sensor node sends sensed values to multiple

actuator nodes and each actuator node receives
sensed values from multiple sensor nodes. Whilemultiple actuator nodes communicate with mul-discuss a type of active coordination protocol forare lost and some number of nodes are faulty,

device nodes. We evaluate the SPC protocol for

multiple actuator nodes and multiple actuation

tiple replica nodes of a device. Even if messages

the sensor-actuator coordination in terms of thedevice nodes can surely receive action requests

number of messages exchanged among actuators.

required for sensed values and the actions are

performed. In this paper, we discuss a type ofsemi-passive coordination (SPC) protocol of mul-

tiple actuator nodes for multiple sensor nodes. We㧔એ਄10ઙ Ṛᴛ ⺈ ೨⡯᧲੩㔚ᯏᄢቇℂᎿቇㇱᖱႎࠪࠬ࠹ࡓᎿቇ⑼࡮ᢎ᝼ߦ߅ߌࠆታ❣㧕ࠛ࡟ࠢ࠻ࡠࡔࠞ࠾ࠢࠬቇ⑼Taesoo Song, Akira Ninomiya, Takeshi Ishigohka㧦
“Experimental Study on Induction Motor With Su-․ᕈ An inrush current of transformer reaches about

several times larger than the rated current. Whenperconducting Secondary Conductors”, IEEE Trans-such a large inrush current flows into a super-

actions on Applied Superconductivity, Vol.17, No.2,

conducting transformer, it will induce a quench of

pp.1611-1614, 2007.6

superconducting windings. In this paper, we fab-㇌ᢥ㗴⋡㧦⿥㔚ዉੑᰴᏎ✢ࠍ᦭ߔࠆ⺃ዉ㔚േᯏߦ㑐ߔࠆታ㛎⊛⎇ⓥ


A superconducting

induction

motor

ricated a small experimental superconducting

transformer, and investigated the behavior ofwithsuperconducting winding against the inrush cur-

Bi-2223/Ag HTS secondary conductors in the ro-rent. The experimental result shows that a su-

tor is studied experimentaly. If the superconduc-perconducting winding quenches for such a large

tor is applied to the secondary winding of an in-inrush current, but it returns quickly to super-

duction motor, a higher efficiency and a higher

conducting state in few cycles spontaneously.

power and a higher starting torque can be expected. The authors remodeled the rotor of acommercial 200 W (4 pole) induction motor and

H. Matsuura, A. Ninomiya, T. Ishigohka㧦“Tolerance

cast aluminum in the rotor slots are cut-in by

Applied Superconductivity, Vol.17, No.2, pp.1611-1614,

made an experimental HTS induction motor. The
5mm in depth and HTS tapes are put in the slots.

Thus, the original conventional 200 W induction

motor was remodeled to a HTS induction motor.

Current”of Bi-2223/Ag Coil”, IEEE Transactions on
2007.6㇌ᢥ㗴⋡㧦Bi-2223/Ag⿥㔚ዉࠦࠗ࡞ߩ⠴㔚ᵹ․ᕈ

The experimental motor was immersed in a liquid

nitrogen bath. And, a no-load test, a locked test, avariable frequency locked test, and a load test of

the HTS induction motor were carried out in liquid nitrogen bath. The experimental results arepresented together with some theoretical analysis.

S. Nishimiya, T. Ishigohka, A. Ninomiya, K. Arai㧦
“Quench Characteristic of Superconducting Trans-

former by Inrush Current”, IEEE Transactions on

Applied Superconductivity, Vol.17, No.2, pp.1931-1934,2007.6㇌ᢥ㗴⋡㧦ബ⏛⓭౉㔚ᵹߦࠃࠆ⿥㔚ዉᄌ࿶ེߩࠢࠛࡦ࠴

㧙㧙

 Compared to low temperature superconductors,
Bi-2223/Ag HTS tapes have lower “n” value. This
characteristic brings rather “fuzzy” notification of

the critical current. It depends on the coolingcondition. This means that the critical current of
Bi-2223/Ag tape can not be decided absolutely.

Rather we should focus on the temperature risecharacteristics of the coil against over-current

exceeding the critical current. If the temperatureof the coil keeps a finite value without thermal

runaway, the coil can be used continuously. We

call the uppermost current without thermal
runaway as “tolerance current”.

 Considering the situation mentioned above, theauthors have studied the temperature rise char-acteristics of HTS coil for both DC and AC cur-rents. Two cooling conditions are adopted. One is᧛᧻ᄢ๋࡮ട⮮㓶ᄢ࡮᧻ᧄ 㓉㧦‫ࡠ࡞ࠞ࠹ࡦࡕޟ‬ᴺࠍ↪޿

a cooling by immersion in liquid nitrogen bath,ߚࠝࡦ࡜ࠗࡦ⟑ฬ⹺⸽‫ޠ‬,ࡅࡘ࡯ࡑࡦࠗࡦ࠲࡯ࡈࠚ࡯࠭ቇ

frigerator. From the experimental result, the㜞♖ᐲࠝࡦ࡜ࠗࡦ⟑ฬ⹺⸽ࠕ࡞ࠧ࡝࠭ࡓࠍ᭴▽ߔࠆand the other is a conduction cooling by GM re-ળ⺰ᢥ⹹㧘Vol.9, No.2, pp.191-200, 2007.5“tolerance current” of the Bi-2223/Ag coil forߚ߼ߦ㧘2ߟߩࡕࡦ࠹ࠞ࡞ࡠᴺࠍ↪޿ߚᚻᴺࠍឭ᩺‫ޕ‬various conditions are obtained.

⌀╩࡮ன╩ߩ್ቯࠍⴕߥ߁ࡕ࠺࡞ߩࡄ࡜ࡔ࡯࠲ផቯߦ ࡑ ࡞ ࠦ ࡈ ㅪ ㎮ ࡕ ࡦ ࠹ ࠞ ࡞ ࡠ 㧔 Markov chain
Monte Carlo (MCMC)㧕ᴺࠍ↪޿㧘ߘߩࡄ࡜ࡔ࡯࠲

Makoto Hamabe, Atsushi Sasaki, Tosin S.Famakinwa,ࠍ ㅙ ᰴ ࡕ ࡦ ࠹ ࠞ ࡞ ࡠ 㧔 Sequential Monte Carlo

Akira Ninomiya, Yasuhide Ishiguro, Satarou Yama-guchi㧦“Cryogenic System for DC Superconducting(SMC)㧕ᴺࠍ↪޿ߡㅙᰴቇ⠌ߔࠆߎߣߢ⚻ᤨᄌൻߦ

plied Superconductivity, Vol.17, No.2,June 2007,߽ᒝ޿ࠕ࡞ࠧ࡝࠭ࡓࠍ᭴▽ߒߚ‫ޕ‬Power Transmission Line”,IEEE Transactions on Appp1722-1725┄↰ ᖗ㧦‫᦭ޟ‬ᯏ㧱㧸࠺ࠖࠬࡊ࡟ࠗߩ↹⾰⹏ଔ‫ޠ‬㧘ᤋ௝ᖱ ⿥વዉ⋥ᵹㅍ㔚ߩน⢻ᕈࠍ⋡⊛ߣߒߚࠤ࡯ࡉ࡞ߩ

ႎࡔ࠺ࠖࠕቇળ⹹㧘62Ꮞ㧘1ภ㧘 pp. 122-125㧘2008.1

 We compared the image quality of organic

಄ළ․ᕈࠍ޿ߊߟ߆ߩ⇣ߥࠆユ኿ࠪ࡯࡞࠼ࠍ↪޿ߡታ㛎⊛ߦᬌ⸛ࠍⴕߞߚ‫ߪߢߎߎޕ‬ౝጀ஥⴫㕙ߦࠕ࡞

light-emitting diode (OLED) displays with that ofᾲ⽶⩄ࠍᄢ߈ߊૐᷫߐߖࠆലᨐ߇޽ࠆߎߣ߇ࠊ߆ࠅ㧘parameters and subjectively evaluating imagesࡒࡎࠗ࡞ࠍ⾍ࠅઃߌࠆߎߣߢ㧘300Kߣ㧣㧣Kߩ㑆ߩ

LCDs by quantitatively measuring image qualityonߘߩ୯ߪߎࠇ߹ߢ࠲࡯ࠥ࠶࠻ߣߒߡ޿ߚ㧝W/mߩ2

thedisplays.

Results

showedthattheblack-level and contrast performance of OLED

୚⒟ᐲ޽ࠆߎߣ߇್᣿ߒߚ‫ޕ‬displays are superior to those of LCDs in a wide

range of ambient light conditions. For theseᄀጘᶈᐘ㧘ⅶ↢⧐ਭ㧦‫ޟ‬㔌ᢔဳήല㔚ജ⺞ᢛེ⟲ߩല₸⊛ㆇ↪ࠍ⋡⊛ߣߒߚേ⊛ᦨㆡầᵹ⸘▚ᴺ‫ޠ‬㧘㔚᳇⸳஻ቇળ⹹㧘

properties, the subjective image quality of fire- 1995ᐕએ㒠ߩ㔚᳇੐ᬺᴺᡷᱜߦࠃࠆ㔚ജᏒ႐߳

high. Image quality features of OLED display

ᐔᚑ19ᐕ9᦬ภ㧘J.IEIE Jpn. Vol.27.No.9㧘pp.776-782

works images on OLED displays was particularly
images are also discussed.

ߩⷙ೙✭๺ߩዉ౉ߦ઻޿ᣂߚߥ⊒㔚੐ᬺ⠪ߩෳ౉߇ㅴߺ㧘㔚ജ♽⛔ߪⶄ㔀ൻ㧘┹੎ൻߩ௑ะߦ޽ࠆ‫ߎޕ‬ߩⷙ೙✭๺ߩ▸࿐ߪߐࠄߦ᜛ᄢߒߡ޿ߊߣߐࠇߡ߅┄↰ ᖗ㧘ዊ↰ᵏਭ㧦‫ޟ‬Webࡍ࡯ࠫ਄ߢߩਇ․ቯᄙᢙߦࠃ

ࠅ㧘੹ᓟߩ♽⛔ㆇ↪ߦߪ቟ోᕈ㧘⚻ᷣᕈߩࠃࠅ৻ጀ

ࠆⷞⷡߩࠦࡦ࠻࡜ࠬ࠻ᗵᐲ․ᕈ᷹ቯߩ⹜ߺ‫ޠ‬㧘ᤋ௝ᖱႎࡔ

ߩะ਄߇ᔅⷐߢ޽ࠆߣ⠨߃ࠄࠇߡ޿ࠆ‫ޕ‬቟ోᕈߣ⚻ᷣᕈߪ⋧෻ߔࠆⷐ᳞ߢ޽ࠆߣ⠨߃ࠄࠇࠆ߇㧘ߎߩⷐ Webࡍ࡯ࠫ਄ߢⷞⷡߩࠦࡦ࠻࡜ࠬ࠻ᗵᐲ․ᕈࠍ᷹

᳞ࠍ಴᧪ࠆ㒢ࠅḩߚߔߚ߼ߩᚻᴺߣߒߡᦨㆡầᵹ⸘▚㧔OPF㧦Optimal Power Flow calculation㧕ߩ⎇ቯߔࠆࠪࠬ࠹ࡓࠍ㐿⊒ߒ㧘303ฬߩPC࡙࡯ࠩ࡯߆ࠄ

ⓥ߇ⴕࠊࠇ߅ࠅ㧘ߐࠄߦㄭᐕߢߪᤨ㑆Ფߩ⽶⩄ߩᄌ

߿PC↹㕙਄ߢᅢ߹ߒ޿ᢥሼࠨࠗ࠭ߦ㑐ߔࠆ࠺࡯࠲

ൻࠍ⠨ᘦߒߚOPFߢ޽ࠆേ⊛ᦨㆡầᵹ⸘▚ߩ⎇ⓥߥߤࠍขᓧߒ㧘ࠦࡦ࠻࡜ࠬ࠻ᗵᐲߩ᷹ቯ⚿ᨐߣߩ㑐߽ⴕࠊࠇߡ޿ࠆ‫ޕ‬ଥߦߟ޿ߡᬌ⸛ߒߚ‫⚿ߩߘޕ‬ᨐ㧘 ⵍ㛎⠪ߩᐕ㦂߿ⷞ ቟ోᕈߦ᳞߼ࠄࠇߡ޿ࠆ੐ߩ৻ߟߪ⽶⩄㔚࿶ࠍㆡജ⍶ᱜᣇᴺߣࠦࡦ࠻࡜ࠬ࠻ᗵᐲߣߩ㑆ߦ㑐ଥ߇⹺߼ᱜ▸࿐ౝߦ⛽ᜬߔࠆ੐ߢ޽ࠅ㧘⚻ᷣᕈߦ᳞߼ࠄࠇߡ

ࠄࠇߚ‫ߚ߹ޕ‬㧘᷹ቯ୯ߪᓥ᧪ߩታ㛎ቶߢߩ᷹ቯ୯ߣ

޿ࠆ੐ߪ⊒㔚ᯏΆᢱࠦࠬ࠻ߩ೥ᷫߢ޽ࠆߣ⠨߃ࠄࠇ߶߷৻⥌ߒߡ޿ࠆߎߣࠍ⏕⹺ߒߚ‫ߦࠄߐޕ‬㧘ⵍ㛎⠪ࠆ‫⺰ᧄޕ‬ᢥߢߪ㧘ήല㔚ജ⺞ᢛེࠍ↪޿ߡ⽶⩄㔚࿶߇ㆬᛯߒߚᅢ߹ߒ޿ᢥሼࠨࠗ࠭ߣࠦࡦ࠻࡜ࠬ࠻ᗵᐲ

ࠍㆡᱜ▸࿐ౝߦ⛽ᜬߒߟߟ㧘Άᢱࠦࠬ࠻ࠍૐᷫߒ㧘ߣߩ㑆ߦ߽޽ࠆ⒟ᐲߩ㑐ଥ߇⹺߼ࠄࠇ㧘୘‫࡯࡙ߩޘ‬ߥ߅߆ߟ㔌ᢔ୯ࠍߣࠆήല㔚ജ⺞ᢛེߩಾ឵߇಴᧪

ࠩ࡯ߩࠦࡦ࠻࡜ࠬ࠻ᗵᐲ․ᕈࠍ⠨ᘦߒߚᢥሼ⴫␜ߩ

ࠆ㒢ࠅዋߥߊᷣ߻᭽ߥㆇ↪ࠍ⋡ᜰߔേ⊛ᦨㆡầᵹ⸘น⢻ᕈ߇␜ໂߐࠇߚ‫ޕ‬࠺ࠖࠕቇળ⹹㧘61Ꮞ㧘7ภ㧘 pp.1021-1024㧘2007.7▚ᚻᴺߩ᦭ലᕈࠍႎ๔ߔࠆ‫ޕ‬㧙㧙

Webࠍ੺ߒߡ᷹ቯ⚿ᨐࠍᓧߚ‫ޕ‬หᤨߦⵍ㛎⠪ߩዻᕈmethod for a moving object without tracking delay.

㥲⮮ᵗม࡮੖ච፲ືᴦ࡮ᄢਭ଻␭㧦‫ޟ‬ᄢ᳇࿶ࡃ࡝ࠕ᡼㔚ߦࠃࠆ࠻࡞ࠛࡦಽ⸃ߣ೽↢ᚑ‛⾰↢ᚑߦ෸߷ߔ㉄⚛࡮᳓⫳

On visual servoing, image-based method with

No.3, pp. 102-105㧘2007.6

camera motion control because it does not require᳇Ớᐲ߅ࠃ߮㔚ᭂ᷷ᐲߩᓇ㗀‫᧚ޠ‬ᢱߩ⑼ቇߣᎿቇ㧘vol. 44,

image Jacobian is often taken for target-centeringtarget's 3D positionestimation and is robust to Decomposition of toluene was performed using

modeling errors and noises. In an ordinary visual

an atmospheric pressure plasma system. The de-servoing approach, it is assumed that the target

composition rate of toluene and the byproducts

object would be fixed in the workspace. Therefore,

were investigated by gas chromatography (GC)for the purpose of tracking to a moving target, theand infrared absorption measurements. The de-image errors always exist between the target po-composition rate of toluene increases with thesition and camera optical axis, that is, the visual

increase of the oxygen content, and decreases

tracking delay. In our proposed method, the tar-with the water vapor content at the electrodetemperature below 100͠. With increasing the

get object's 3D position is estimated with thetechnique based on triangulation on stereo visionelectrode temperature, the decomposition rate ofsystem. Then, the moving velocity is calculated intoluene hardly depends on the water vapor con-the camera coordinate frame. The image Jacobian

tent below 4 mol%. We concluded that the system

concerns the camera velocity with the target ve-

should be operated at the electrode temperatures

between 200-250͠ with the water vapor of aboutlocity in the image plane. Additionally, the target

velocity in 3D workspace is also converted into2%.

the velocity in the image plane. The converted

Y. Saito and T. Kosuge㧦“Honeycomb-textured struc-velocity compensates the camera velocity tocompensate the camera motion delay. This ap-

tures on crystalline silicon surfaces for solar cells by

proach enables to achieve non-delayed tracking

spontaneous dry etching with chlorine trifluoride gas”

for moving target.

Solar Energy Materials and Solar Cells, vol. 91,
pp.1800-1804㧘2007.7

㇌ᢥ㗴⋡㧦࠼࡜ࠗࠛ࠶࠴ࡦࠣߦࠃࠅ૞⵾ߒߚᄥ㓁㔚ᳰ↪

ᏒᎹ㤗ℂሶ, ᩊ↰᣽᣿㧦‫ߩࡓ࠹ࠬࠪࡦ࡚ࠫࡆࠗࠕ࠼ࡦࡂޟ‬⚿᥏♽ࠪ࡝ࠦࡦ਄ࡂ࠾ࠞࡓ⁁࠹ࠢࠬ࠴ࡖ࡯᭴ㅧ

 Reflection loss of silicon solar cells can be re-ߚ߼ߩㄭૃဳ┍⷟േ૞೙ᓮᴺ‫ޠ‬,㔚᳇ቇળ⺰ᢥ⹹㧰㧔↥ᬺ

study, single- and multi-crystalline silicon sub-method for exploring motion of eye-in-hand robot

duced by texturization of the surfaces. In thisᔕ↪ㇱ㐷⹹㧕,Vol. 127 (2007), No.6 pp.651-652,2007.6

 This paper proposes a visual servo control
to recognize a three-dimensional object. Optimal

strates were treated with chlorine trifluoride

motion is based on the strategy in which the po-(ClF3) to create honeycomb-textured structures.

sition estimation precision of the feature points

We investigated surface structures and opticalgets improved when the feature points moveproperties of the textured surfaces. By the treat-

widely, and the optimal robot motion provides thement with ClF3 gas, the reflectance of the tex-widest transitions of the feature points per unit

tured surface without antireflection coating was

robot motion, so that the robot should be con-obtained to be below 20% at wavelengths between

trolled to purse such motion. In addition, this300 and 800 nm. The solar cells using the tex-

paper describes the way to reduce a large number

tured substrates were fabricated and their im-of calculation efforts. The validity of our approachproved performances were demonstrated.

is confirmed in the several experimental results.

ዊᨋિᓆ, ᩊ↰᣽᣿㧦‫޿↪ࠍ࠻࠶ࡏࡠࡦ࡚ࠫࡆࠝ࡟࠹ࠬޟ‬ߚ⒖േኻ⽎ߦኻߔࠆㅊᓥᴺ‫ޠ‬,㔚᳇ቇળ⺰ᢥ⹹㧰㧔↥ᬺᔕ↪ㇱ㐷⹹㧕,Vol. 127 (2007) , No. 6 pp.643-650,2007.6

 In this paper, we propose a visual trackingદ⮮ᱜ⧷࡮ᚭ↰ዏብ㧦‫ޟ‬IDA-PBC ᴺߦࠃࠆ 3 㑐▵ഠ㚟േࡑ࠾ࡇࡘ࡟࡯࠲ߩ೙ᓮ‫ޠ‬㧘⸘᷹⥄േ೙ᓮቇળ⺰ᢥ㓸㧘
Vol.43㧘No.9㧘pp.788́797㧘2007.9

㧙㧙

 We present an application of Interconnection

set of generalized coordinates and applying atrol (IDA-PBC) method to an underactuated ma-

applicable conditions and design an inertia ma-

global input transformation.

and Damping Assignment Passivity-Based Con-

And we clarify thetrix and a potential energy function of the closed

nipulator with the third joint unactuated which is

Hamiltonian system. Numerical experiments are

subject to second-order non-holonomic constraints.

given to show the validity of the derived control-

We give a port-Hamiltonian representation of theler.

manipulator system by selecting an appropriate౒ ㅢ ၮ ␆
K. Tanaka, K. Kohayakawa, T. Irie, S. Iwata, and K.

were measured to know possibility of a salt neu-

fluorophenylhemithioindigo”, J. Fluorine Chem., Vol.

with economical antenna spacing. Detection pos-

Taguchi㧦“Novel photoinduced cyclization of penta-trino detector. The result indicates a feasible plan

sibility of GZK neutrinos in natural huge rock128, No. 10, pp. 1094-1097, 2007. 10

salt formation has been simulated including at-㇌ᢥ㗴⋡㧦ࡍࡦ࠲ࡈ࡞ࠝࡠࡈࠚ࠾࡞߳ࡒ࠴ࠝࠗࡦࠫࠧߩ

tenuation length, background noise and band-ᣂⷙߥశ⺃⿠Ⅳൻ෻ᔕ

width of antennae so that GZK neutrinos of 8-62

 Photoirradiation of pentafluorophenyl-substituted

per year would be detected.

Z-hemithioindigo 1 causes a novel type ofphotoinduced cyclization, to produce the in-tramolecularly cyclized alcohol and its dehy-

Masamigroup of 1 are found to be crucial for thiskayama, Yusuke Watanabe, Fumiaki Yabuki, Osamu

drated ether.

The o-fluorine atoms of the phenyl

photoinduced cyclization.

M. Chiba, T. Kamijo, Y. Watanabe, M. Fujii, Y. Shi-basaki, Y. Takayama, F. Yabuki, O. Yasuda, A. Amano,

Y. Chikashige, T. Kon, S. Mori, S. Ninomiya, Y. Shimizu, Y. Takeoka and M. Utsumi㧦“Measurement ofattenuation length for radio wave in natural rock salt
and performance of detecting ultra high-energy neutrinos”, J. Phys. Conf. Ser. 81:012003, 2007

Chiba,

Yoko

Arakawa,

ToshioKamijo,Shunsuke Nakamura, Yuji Shibasaki, Yasuhiro Ta-

Yasuda, Akio Amano, Yuichi Chikashige, Keisuke Ibe,
Tadashi Kon, Sosuke Ninomiya, Yutaka Shimizu,

Yoshito Takeoka, Yasuyuki Taniuchi, Michiaki Utsumi,
Masatoshi Fujii㧦“Reflection of microwave from energy
deposit by X-ray irradiation in rock salt: Implicationof an ultra high energy salt neutrino detector to act
like a radio bubble chamber”, the proceedings of 15th

International Conference on Supersymmetry and theUnification of Fundamental Interactions (SUSY07),㇌ᢥ㗴⋡㧦 ᄤὼጤႮਛߢߩ࡜࠺ࠖࠝᵄߩᷫ⴮㐳᷹ቯߣ⿥Karlsruhe, Germany, 26 Jul - 1 Aug 2007.

㜞ࠛࡀ࡞ࠡ࡯࠾ࡘ࡯࠻࡝ࡁᬌ಴

Ultra high-energy (UHE) neutrinos (E>1015 eV)㇌ᢥ㗴⋡㧦ᄤὼጤႮਛߢߩ࡜࠺ࠖࠝᵄߩᷫ⴮㐳᷹ቯߣ⿥

microwave background and UHE cosmic rays⫾Ⓧߐࠇߚࠛࡀ࡞ࠡ࡯ߦࠃࠆࡑࠗࠢࡠᵄ෻኿㧦࡜࠺ࠖࠝThe low rate of GZK neutrinos requires us toߩౝኈ

is expected to exist due to presence of the cosmic

㜞ࠛࡀ࡞ࠡ࡯࠾ࡘ࡯࠻࡝ࡁᬌ಴ጤႮਛߦX✢ๆ෼ߣߒߡ

implied by Greisen, Zatsepin and Kuz'min (GZK).

ᵃ▫ߩࠃ߁ߦᝄ⥰߁⿥㜞ࠛࡀ࡞ࠡ࡯࠾ࡘ࡯࠻࡝ࡁᬌ಴ེ

utilize a large mass (50 Gton) of detection me-

neutrinos) have been justified although the flux isdium. Collision between the UHE neutrino andthe rock salt produces electro magnetic shower,
which includes a huge number of unpaired electrons in rock salt. They would emit sensible radio

wave by coherent Cherenkov effect. Attenuation

lengths of natural rock salt at 0.3 and 1.0 GHz㧙㧙

 Existence of GZK neutrinos (ultra high energy
very low. A new method is desired to use a hugemass of a detector medium to detect them. A
fundamental study of radar method was carriedout to measure microwave reflection from electromagnetic energy deposit by X-ray irradiation

in a small rock salt sample. The reflection rate of1x10^-6 was found at the energy deposit of

1x10^19 eV which was proportional to square of
the X-ray intensity suggesting the effect to becoherent scattering. The decay time of the reflection was several seconds. This effect implies alarge scale natural rock salt formation could be
utilized like a bubble chamber irradiated by radio

wave instead of visible light to detect GZK neutrinos.

㧙㧙