List of Dissertation Abstract (Department of Artificial Environment)
NameSupervisor

WENJING

Masahiko

ZHOU

Matsumiya

LIU HAO

Endo Akira

Title

Abstract

The extraction behavior of Ir(IV) was investigated using an amine
extractant. In addition, the electrochemical behavior of theextraction and direct electrodeposition
extracted Ir(IV) species during electrodeposition was also studied.
from loaded organic phase
Voltammetry-based electrochemical analysis revealed that the
reduction of Ir(IV) proceeded via an intermediate Ir(III) species in
two steps, namely, Ir(IV) + e− → Ir(III) and Ir(III) + 3e− → Ir(0).
Diffusion coefficients of the extracted Ir(IV) species were
determined over the temperature range of 298–373 K using semiintegral and semi-differential analyses, and values obtained fromthe two analyses were consistent with each other. Furthermore,consecutive solvent extraction and electrodeposition of Ir metal
were performed for 10 cycles. The entire Ir electrodeposit was in
the metallic state, as is evident from the 4f7/2 spectrum obtained by
XPS.
Study on Evaluation of Indoor Thermal In existing energy calculation methods for evaluating energy
Environment Characteristics of Large- conservation measures for large-scale food retail stores, it is
Scale Food Retail Store Based on CFD assumed that the temperature inside the store is uniform due toAnalysis
perfect mixing. However, in reality, there is a strong
temperature distribution in the store, and the assumption of
perfect mixing results in a large error. The results showed thatchanging the air conditioning temperature setting has a strong
effect on the air conditioning load because it affects thetemperature distribution near the ceiling in the store in bothsummer and winter, while it has a weak effect on the SC
cooling load. In addition, when the ventilation volume wasvaried, the temperature distribution throughout the store wasaffected in both summer and winter, indicating that both the SC
cooling and air conditioning loads were affected.
Recovery of iridium by solvent

Zou LiyeEndo Akira

Quality of place, urban scale, andinnovation in Chinese cities: a study
based on nighttime lighting data

Prior innovation research lacks urban scale analysis, especiallyin China, the impact of quality of place and urban scale oninnovation remains unclear. This study examines theirrelationship, using City Innovation Indices, PCA ameniy
indices and China urban scale indices based on Global NPPVIIRS-like nighttime lighting data.The results indicate that apositive correlation between location quality and urban
innovation, with urban scale positively moderating therelationship.

Huang Jun

Yasumoto
Masanori

Research on the Influence of Proximity This paper discusses the relevance of two key words: proximity
and technology standardization capability. Rooted in theon the Capability of Enterprises'
Technical Standard

problematic issue of firms' choice of alliance partners, the aim
was to identify the impact of the degree of difference in thecharacteristics of technical standards consortium members on
firms' technical standardization capability, based on amultidimensional proximity perspective, viewed as a processfrom the formulation of technical standards to their survival. A
binomial regression model and survival analysis were used totest the hypotheses. Conclusions, such as geographicalproximity improving technical standard survival capacity,
provide implications for companies' partner selection policies.

Amano Mitsuki

Kasai Naoya

Development of a Chloride Ion Sensor

Chloride ions adversely affect the corrosion of bridges andUsing an Optical Fiber Coreother civil engineering structures, so there is a need for early
detection technology. In this study, we focused on optical fiber,
which has many advantages as a sensor material. We focusedon light absorption among the optical phenomena that occur on
the surface of the optical fiber core, and aimed to develop asensor that is highly sensitive and reflects only the effect ofchloride ions in its spectrum by forming a silver film on thecore surface that reacts with chloride ions and causes lightabsorption at a specific wavelength.

Arai satoshi

Hiroki Hondo

Effects of Anthropomorphism of

The aim of this study is to determine the influence ofEnvironmental Mascots onenvironmental mascots on the acceptance of photovoltaic

Environmental Awareness and Pro-

power generations through anthropomorphism. A questionnaire

Environmental Behavior

survey is conducted on the impact of anthropomorphism of anenvironmental mascot in Iida City, Nagano Prefecture. The
results of the analysis present the concept of civic
anthropomorphism, which is different from anthropomorphism
in previous studies, and show that two types ofanthropomorphism may promote people's acceptance ofphotovoltaic power generations. The paper also discusses themechanisms by which the two types of anthropomorphism
increase acceptance of photovoltaic power generations and therelationship between them.

Ishikawa Tomori

Ken Nakano

Super-lubrication system ofIn recent years, there has been a requirement to shift from

Concentrated Cellulose Nanofiber

petroleum resources to biomass materials, and cellulose

molding

nanofibers (CNFs) are one such material. The objective of thisstudy is to clarify the lubrication mechanism of highly
concentrated CNF moldings under dry conditions andtemperature control. CNF molding vs. steel friction test was
conducted simultaneously with a Raman spectrometer todetermine the chemical structure. As a result, it was concluded
that the friction properties of CNF moldings depend on thesliding temperature and that sliding at high temperatures
exhibits low friction due to the formation of a transfer film
composed of graphite.

Ishikawa
Manami

Yasushi Oka

Improvement and Upgrading of

Twodee-2, one of the advection and diffusion prediction codes

Prediction Method for Dense Gas

for dense gas, was improved in the following two ways. One is

Advection Diffusion Based on

the application of Roache's method and the Lax method to the

Shallow-Layer Models

discretization scheme of the convection term, which improved
the advection velocity of dense gas and the accuracy of gas
concentration prediction. The other was to change the airflow
field estimation method, which affects the advection
phenomena of dense gas, to three-dimensional mass-consistentflow field model to improve the prediction accuracy of dense
gas advection and diffusion around building-shaped obstacles
on land.

ITO TAKUMAHIROKI

Environmental, economic and social

The objective of this study is to develop a method to

HONDO

analysis of microgrid using

comprehensively evaluate the social benefits of microgrid

photovoltaic power generation and(MG), a system in which photovoltaic power generation andstorage batteries

storage batteries are installed in specific region and power
sharing using a self-power cable and an energy management
system. We design a resilient MG using HOMER(Hybrid
Optimization Model for Multiple Energy Resources), andestimate CO2 reduction effects and economic ripple effects
using REFIO(Renewable Energy Focused Input-Output Table),
REFIO-Region and other input-output tables to quantify thesocial benefits of the MG from environmental, economic, andsocial perspectives.

Otaka Satoru

KameyaComparison of GC-MS/MS and GC-

The GC-MS AIQS-DB method is studied for comprehensive

Takashi

MS AIQS-DB method for

management of chemical substances, but it has concerns about

identification of substances for

misidentification. In this study, it was investigated that the

Substances with Environmental Risk

identification and quantification of substances that have been

Concernpointed out to be of high environmental risk concern inprevious studies and AIQS-DB substances for which there areconcerns about mutual interference due to similar retention
times and mass spectra, using GC-MS/MS, which is superior in
identification and quantification due to the ability to measure
the mass spectrum derived from the molecular structure. The
reliability of the AIQS-DB analysis results for
identification/misidentification was verified using the GCMS/MS method.

Onuma Moeka

AmemiyaConstruction of an astrocyte-neuron

The metabolism of astrocytes and neurons is involved in

Takashimixed culture system and elucidation

various brain functions. Furthermore, the ANLS (Astrocyteof the symbiotic metabolic oscillations

Neuron Lactate Shuttle) suggests that astrocytes and neurons
are metabolically symbiotic. The ANLS, which states thatastrocytes transport the energy needed by neurons during
neurotransmission in the form of lactate, has not yet beenverified. Therefore, with the aim of verifying the ANLS using
glycolytic oscillations, I attempted to construct a mixed culture
system of astrocyte-neuron and to observe glycolytic
oscillations. Although we could not observe glycolytic
oscillations, by examining the culture environment including
serum, were able to obtain a large glucose response, especiallyin fibrous astrocytes.

OMORI

AtsumiAnalysis of ignition mechanism of

The electrolysis ignition method directly applies voltage to an

RYOSUKE

Miyakeenergetic ionic liquids via applying

energetic ionic liquid (EILs) and electrolyzes it. This method is

voltage and development of combustor

expected to address the poor ignitability of an ammonium

engineering model

dinitramide based EILs owing to its highelectrical conductivity. However, the thruster performance has
not been evaluated. The objective of this study is to analyse theignition mechanism and demonstrate the feasibility of theelectrolysis ignition method.

Okuda Yoji

Okuno Tomoki

Shibutani

Method of creating high-accuracy

Tadahiromodels for automation of large cranes

Masahiko

Investigation for extraction mechanism

Matsumiyaanalysis of Pd(II) and electrodeposition
behavior of extracted complex using
amide-based extractant

In recent years, the automation of cranes has beenpromoted. One of the methods being studied is to have an
artificial intelligence system learn to operate an analyticalmodel of a crane. When analyzing cranes, various
elements are simplified to improve computability. This
results in a large error compared to the actual crane. In
this study, we clarify the factors that should be taken into
account when promoting the automation of large cranes in
the future. For this purpose, we focused on the bending
elasticity of the rope and compared it with the double
pendulum model, which is generally considered to
improve the accuracy of crane models. This clarified theeffect of bending elasticity on accuracy.
The development of solvent extraction and directelectrodeposition processes is an important task to reducethe volume of secondary wastes. In this study, the extractionof Pd(II) using amide-based extractant in three diluents(acetophenone; AP, 1,2-dichloroethane; DCE, or 1-octanol;OC) was investigated. Slope analysis revealed that theextraction mechanism of Pd(II) was based on the anion
exchange reaction. The electrochemical behavior of theextracted Pd(II) complex was investigated by anelectrochemical quartz crystal microbalance (EQCM).
Pd(II) was found to be reduced to Pd(0) metal via a twoelectron transfer, and the cathodic reaction was found toproceed in the region between -2.38 V and -3.40 V based on
the apparent molar mass of 105.22 evaluated by EQCM.
Moreover, the alternation of Δηρ corresponded to the local
decrease in the viscosity of the organic phase near theelectrode. The potentiostatic electrodeposition of theextracted Pd(II) complex enabled us to recover theelectrodeposits, which were identified as Pd metal throughSEM/EDX, XPS, and XRD analyses.

Ohara Airu

Nakano Ken

Instability Exploration of Multi-point
Contact Sliding Systems Based on
Dynamic Stiction

KASAHARA

KASAI

Development of pH sensor for high

ATSUSHI

NAOYA

temperature and high pressure waterusing palladium-silver alloy electrode

Friction induced oscillations are complex in both time andspace. However, a simple friction induced oscillation model
based on Coulomb Friction (classical model) cannot express
the complexity. Therefore, we developed a model that is simple
but can express complexity by making the minimum necessary
extensions. The numerical results confirm the complexity inboth time and space because the amplitude and frequency varywith time and each point behaves differently. Following theconvention in seismology, we focused on the magnitude thefrequency of the magnitude and the direction of slip, and foundthat the model approached the real phenomenon compared tothe classical model.
In pH measurement in investigations of corrosion behavior inhigh-temperature, high-pressure water such as oil and gas wells
and nuclear reactors, the difficulty of transporting the hydrogenrequired for the measurement system and the low durability ofthe electrode have become issues. In this study, we focused ona palladium-silver alloy electrode with improved durability byadding silver to palladium, which has excellent hydrogenstorage properties. In the experiment, after hydrogen wasabsorbed into the electrode, pH measurement experiments wereconducted in high-temperature, high-pressure water, and the
pH measurement accuracy of the electrode was verified bycomparing the actual measurement values with theoreticalvalues.

KAWANA

Matsumoto

Crystal Structure and Absorption

Alizarine, known as a natural dye and lake pigment, forms

MIYU

ShinyaSpectra of Metal Complexes ofmetal complexes. The color of its metal complexes is known to

Alizarinechange depending on the coordinating metal. In this study,
crystals of Alizarine metal complexes were grown, and their Xray crystal structure analysis and absorption measurements
were performed. Three different solvated crystals of Cu(Ⅱ)Alizarine were obtained. Examination of the absorption
properties of these solvated crystals and a Ca(Ⅱ)-Alizarine
complex suggested that the color changes of crystals of
Alizarine metal complexes are caused by the difference inmolecular structure.

Kuroki Yuri

ShiraisiA Study of Understanding of Cell

Cultured cells biochemically respond to mechanical vibration.

Toshihiko

Mechanosensing under MechanicalHowever, the mechanisms of sensing mechanical vibration andVibration via Measurement of Its

being transduced to biochemical response have not been

Modes of Vibration

clarified. One of the previous studies reported that gene
expression of ALP reached the maximum at 50 Hz with
culturing osteoblastic cells under mechanical vibration.
Considering a vibration model of a cell consisting of mass andspring, the modes of vibration of nucleus can be related tocellular mechanosensing mechanisms. In this paper, we
experimentally measured nucleus displacement undermechanical vibration of 12.5-100 Hz, 0.5-2.0 G. The results
indicated that phase-inversion occurs between 12.5 Hz and 50
Hz, suggesting the existing of a natural frequency of the cell.

Kodaka Mayu

Kenji Aramaki Effect of Carbon Chain Length on αGel Structure and Physical Properties
Based on a Cationic Surfactant-Fatty
Alcohol Mixture

Goto Yota

Yasushi Oka

Proposal of a Simplified Prediction
Method for Smoke layer Properties
Based on Numerical Calculation of
Flow Field in Inclined Tunnel Fires

α-Gel is prepared from a mixture of surfactant, higher alcohol,
and water. It has the ability to hold a large amount of water andis highly viscoelastic. And it works as a versatile platform toformulate various matters, such as water soluble, oil soluble,
and non- soluble. Hence, α-gel has been used in some products,
such as hair conditioners. In this study, surfactants and higher
alcohols with different carbon chain lengths and hydrophilicgroups investigate their effects on the internal structure andphysical properties. Different combinations of hydrophilicgroups and carbon chain lengths resulted in differences in thecomposition range, hardness, melting point, and internal
structure.
Fires in road tunnels cause significant social and economic
losses, but most studies have focused on fire phenomena inhorizontal tunnels. In this study, numerical simulations ofsmoke flow in inclined tunnels were performed and smoke
layer properties were examined in detail in terms of smoke
layer thickness, temperature and velocity. By applying theweighted average of two exponential functions, a prediction
equation for the temperature attenuation of the smoke layer
propagating along the up-slope ceiling was proposed. The
coefficients in the equation are expressed as a function of thelongitudinal gradient. It is shown that the reference position
and its temperature rise can be predicted by modifying theexisting equation for a horizontal tunnel under forced
ventilation.

Shiko Keisuke

Mieko

Investigation of a method for

Charcoals have many parameters to influence burning rates ofKumasakipredicting the burning rate of black

their black powder. The variety causes difficulty in the

powder using Machine learning withprediction of parameters. This study aims the prediction of themeasurement data of hemp charcoal

burning rate of black powder by using machine learning withcharcoal parameters. As a result, the neural network obtained a
prediction accuracy of 0.79 for coefficient of determination and0.68 for Mean Square Error . A decision tree provided highaccuracy rates for both binary classification and multiclassclassification.

Shimizu

KameyaIdentification manual based on

GCMS AIQS-DB method is expected to be applied to efficient

Daisuke

Takashireliability evaluation of Automatedenvironmental screening. However, differences in

Identification Analysis in GCMS-TIM

identification results may occur when different measuring

Analysis of Environmental Samples

instruments and analysis software are used, and concerns havebeen raised about the reliability of analytical results. In thisstudy, we analyzed the effects of GCMS analysis on peak andspectrum identification, searched for automatic identification
requirements that are consistent among different analysis
software already in use, and examined identification judgment
methods that take into account the possibility of
misidentification.

Jozuka Wataru

Matsumoto

Polymorphs of two N-alkylated

Isoindigo is a reddish dye with a chromophore analogous to

Shinyaisoindigo dyes

indigo. Isoindigo has been investigated as a functional dye forapplications in electronic materials. In this study, we attempted
to study polymorphism in N, N’-diethylated isoindigo
derivative 1 and N, N’-dipropylated isoindigo derivative 2. As aresult of crystallization, some crystal polymorphs wereobtained from 1 and 2, respectively. The thermodynamic andspectroscopic properties of the obtained polymorphs of 1 and 2
were investigated. The results suggested that the introductionof the alkyl groups plays an important role in the observed
polymorph occurrence.

Seki Takuya

Tadahiro

Simulation of gaseous hydrogen

In the diffusion of renewable energy, hydrogen energy is

Shibutanidiffusion in the ground and evaluation

closely related, and efforts are underway to use hydrogenof odorantenergy in place of city gas in the future. Therefore, CFD
simulations are used to compare the diffusion shape of gaseoushydrogen in the ground with that of an odorant, and to evaluate
the suitability of hydrogen as an odorant.

TakadaKen Nakano

michimasa

A study on modeling for tree

Trees have a high vibration-damping capability from thevibration :Can tree vibration beenvironment. In a previous study, when a tree was subjected torepresented by a model-

free vibration, the more branches and leaves were pruned, theless the tree's vibration was damped, indicating that thebranches and leaves act as a "damper". There are two possible
reasons for this: one is the "internal viscosity of the branches
and leaves" and the other is the "aerodynamic drag of the
branches and leaves".
The free vibration model of a tree is used to determine which ofthese factors is dominant for the function of the damper.

Takemoto

Mieko

Examination of occupational safety

The increase in the statutory employment rate of people with

Keisuke

Kumasakiand health issues for people withdisabilities has led to their actual employment rate. However,mental and developmental disabilities

the understanding of the occupational safety and health has

using qualitative data analysis andbeen scarce for persons with mental and developmental

development of risk management

disabilities. In addition, some companies are concerned about

methods

the lack of the understanding and their safety This study
examined the development of developed a risk management
tools which managers can use to continuously improve theirworkplaces and promote diversity and inclusion. Also, thisstudy prepared the points in creating standard operation
procedures for persons with disabilities.

TAMABAYASHI ARAMAKI

Variation of Fiber Structure of Degree

The effects of degree of neutralization and cooling rate on theAsuka

of Neutralization of Sodium N-Lauroyl

fiber structure formed in aqueous sodium N-lauroyl glycinate

Glycinate in Aqueous Media

solution were investigated. Optical microscopy, transmission

Kenjielectron microscopy (TEM), and small-angle wide-angle X-ray
scattering (SWAXS) measurements confirmed that the fiber
structure formed by the different degrees of neutralization
resulted in the formation of a thread-like fiber consisting ofrepeating lamellar layers and a hollow cylindrical fiber with athin film, respectively. It was also suggested that themechanism of fiber growth changes with the cooling rate,
resulting in fibers with different widths and lengths.
TAMURA

Kenji Aramaki Evaluation of mechanical properties

As a preliminary step toward the development of an insertion

SHOTAROfor the development of an insertion

training model, this study was conducted to clarify the factors

training model using PVA gelthat determine the shape of the force curve obtained from aphysical cross-linked gel of PVA by performing an insertion
test on the sample. As a result, it was found that the shape ofthe force curve varied depending on the gelation conditions,such as solvent type and gelation temperature, andexperimental conditions, such as needle shape and insertion
speed, indicating that the shape can be controlled for model
development.

DeguchiAkihiko Ito

YumikoPreparation of Ce3+-doped Al2O3–µm-Thick scintillators are required for selective detection of α-

Gd2O3 thick film phosphors using

ray in a field of high β-ray and γ-ray background such as

chemical vapor deposition and their

nuclear facilities. Laser-assisted chemical vapor deposition

luminescence properties(LCVD) method can directly grow μm-thick crystalline films.
Oxide materials based on Al2O3–Gd2O3, such as GdAlO3(GAP), Gd3Al5O12 (GAG), and Gd3Al2Ga3O12 (GAGG) are
expected as scintillator materials for high radiation stopping
ability because of their high densities. Ce3+-doped phosphorsshow fast decay due to 5d–4f allowed transition. In the present
study, we prepared Al2O3–Gd2O3 based Ce3+-doped oxide μmthick films using LCVD method and evaluated theirphotoluminescence and α-ray induced scintillation properties.

Nakai Taichiro

ShinyaPolymorphs of ChlorinatedMatsumotoDiketopyrrolopyrrole Derivative with a significant impact on their application in the solid state. In thisPentyl Group at the N Position

The polymorphism of organic dyes and pigments has astudy, we have synthesized chlorinated diketopyrrolopyrrole(Cl-DPP) derivatives with a pentyl group to the N-position andexplored their polymorphs. Two polymorphs were obtained by
crystallization, one of which showed dynamic behavior uponheating accompanied by a phase transition. The threepolymorphs showed differences in molecular and crystal
structures, such as the molecular conformation of the pentylgroups and the number of asymmetric units.

Nakada Kakeru

HoshinoSynthesis of Benzodioxole from 2-

Benzodioxole is a compound in which a methylenedioxy group

Yujiro(Hydroxydiphenyl)phenols by

is bonded to the benzene ring, and is in general synthesized by

Photodedox Catalysis Using TXT

alkylation of catechol under strong acid conditions. The
benzodioxole skeleton is found in many natural products andhas not been synthesized using organic photoredox catalysts. In
this study, we investigated the TXT-catalyzed reaction of 2(hydroxydiphenylmethyl)phenol under visible light irradiation,with the aim of developing a synthetic method for
benzodioxole under mild conditions.

Nakamura
ShuntaHondo Hiroki

Local socio-economic effects of

The purpose of this study is to evaluate the socioeconomic

geothermal binary power generation

effects that will occur within the region where the geothermal
binary power plant is located.
By using the Renewable Energy Focused Input-Output modelfor Region (REFIO-Region), we estimated the socioeconomic
impacts inside and outside the region over the life cycle ofgeothermal binary power generation.
This clarified the socioeconomic effects of the introduction ofgeothermal binary power plants on the local economy andindustry.

Nunomura

Aramaki Kenji OCT in-situ observation of the external Density non-uniformity and anisotropic firing can cause

Yutoshape change during sintering of 8YSZ

cracking and deformation of ceramics. Anisotropic firing oflaminates

non-uniform density compacts may cause complex
deformation, but the shrinkage behavior has not yet beenclarified. Therefore, using a laminate with different densities at
the top and bottom as a model of a molded object with nonuniform density, we observed the external and internal changes
when the object was fired by unidirectional heating from thebottom using OCT. It was found that the density after firing
differed by changing the firing method.

Nohara Shoya

YujiroIn Situ Generation of ortho-Quinone

Organic photoredox catalyzed oxidative generation of o-

HoshinoMethides by Organic Photoredox

quinone methides (o-QMs) for inverse-electron-demand [4 + 2]

Catalysis and [4+2] Cycloaddition

cycloaddition has been developed. One-electron oxidation of 2-

Reactions(phenyl(phenylsulfanyl)methyl)phenol catalyzed bythioxanthylium salt under the irradiation with green light
generated o-QMs, which reacted in situ with various styrenes tofurnish 2,4-diarylchromanes with high regioselectivity. This
reaction provides a powerful means of producing o-QMs andsynthesizing diverse 2,4-diarylchromanes by a one-electronoxidation process under mild green light irradiation.

Hashimoto

Ito Akihiko

Yuka

Preparation of free-standing HfO2

Free-standing ceramic films are potential scintillator for X-ray

films using laser chemical vapor

imaging and HfO2 is a candidate material because of highdeposition

stopping power. However, transparent free-standing ceramic
films without large cracks or voids were rarely prepared. Laserassisted chemical vapor deposition (LCVD) method candeposit coatings with controlling crystal microstructures bysynthesis conditions. In the present study, I have investigatedthe effect of deposition conditions on preparation of freestanding Eu3+-doped HfO2 transparent films.

Hase Kento

Ken Nakano

The super-low ice-adhesion

Techniques preventing icing and ice accumulation on surfaces

mechanism of concentrated polymer

are required to solve snow and ice-induced accidents andbrushes: in-situ observation anddisasters. This study aimed to investigate the potential of a newmechanical measurement of ice

anti-icing polymer material: concentrated polymer brushes

adhesive interface(CPB). The rupture process of the ice adhesive interface wasmonitored by a homemade ice adhesion-strength measurement
apparatus coupled with a video camera. The results showed that
the CPB system exhibited very low icing force with nocohesive breakdown of the ice-adhesive interface. From theexperimental verification, it was concluded that the iceadhesive characteristics of CPB are dominated by a viscous
fluid layer, which is presumed to be antifreeze water.

Hirata kodai

Shibutani

Analytical study on the determination

In cases where shear stress is dominant under multiaxial

Tadahiro

method of material parameters and thestresses, such as in out-of-plane bending tests of elbow pipes,

effect of shear stress in the GTN model conventional evaluations based on accumulated equivalent
plastic strain may not align with actual measurements.
Consequently, analysis using GTN and extended

GTN

models were conducted . Experimental results werecompared to examine the validity of determining material
parameters, and discussions based on Lode parameters were
undertaken to verify the necessity of introducing the shear
GTN model.
Fujita Ikuma

AmemiyaEffects of HIF on glycolytic

We aimed to investigate the effect of hypoxia-inducible

Takashioscillations in HeLa cervical cancer

factor HIF on glycolytic oscillations by hypoxia treatment ofcells

HeLa cells. Glycolytic oscillations were observed in manycells in hypoxic

compared to normal oxygen

concentrations. The cause was thought to be an increase in
expression of the lactate transporter MCT4 mediated by HIF
associated with hypoxic culture. Since HIF is involved inmalignant transformation of cancer, if the increased
expression of MCT4 is found, it will be possible to show the
relationship between glycolytic oscillation and malignant.

Funaki Maki

Aramaki Kenji on the Structure and Properties ofHydrogels Prepared by Surfactantmediated Gelation

Munakata Yu

Nakano Ken

Visualization of the contact surface
and force measurement for objective
estimation of tactile sensation

Low-molecular-weight gelators (LMGs) form physical gels by
non-covalent bonds which have reversible sol-gel transition
and responsiveness to various stimuli. Organogelators such as
12-hydroxyoctadecanoic acid (12-HOA), typical LMGs, areinsoluble in water and cannot form hydrogels. However,hydrogelation with 12-HOA is possible by the help of thesurfactant solubilization function, which is called thesurfactant-mediated gelation (SMG). SMG hydrogelation withglutamic acid-based organogelators, N-lauroyl-L-glutamic aciddibutylamide (LGD) and N-2-ethylhexanoyl-L-glutamic aciddibutylamide (EHGD), were also reported. In this study, we
compared the differences in structures and properties of SMG
hydrogels prepared by 12-HOA and LGD-EHGD.
The tactile sensation when doing skincare is an importantcharacteristic that significantly influences consumer
satisfaction, however, it lacks objectivity. In this study, I aimed
to understand the mechanical phenomena during skin contact tofacilitate the objective estimation of tactile sensation. Using anapparatus developed independently, we confirmed that the realcontact area increased during contact retention, and the
dynamic friction coefficient during sliding increased linearlywith the ratio of the increase in it. By comparing these findings
with sensory evaluations, we identified the potential of theincrease in the real contact area ratio as an objective indicatorof the sensation of moisturization.

Morita Yuzuki

TakashiGlycometabolism oscillations andLeptin, secreted by white fat cells, is an important hormone that

Amemiyaleptin secretion in white adipocytes

suppresses appetite, but the detailed secretory mechanism isstill unknown. In pancreatic beta cells that secrete insulin,
oscillations in glucose metabolism and insulin secretion arelinked via Ca2+. Since ATP and Ca2+ are involved in leptin
secretion and leptin oscillations have been observed, althoughunclear, we hypothesized that the secretory mechanism of
leptin is similar to that of insulin. In this study, we aimed toobserve glucose metabolism oscillations in white adipocytes
and to clarify the relationship with leptin.

Yamashita

Mieko

Research on Improvement of Moisture

A new surface treatment agent for fine magnesium powder for

Temma

Kumasaki

Resistance of Magnesium forsmoke fire was examined. A fluorocarbon polymer was

Fireworks by Surface Treatment

selected as the surface treatment agent, and a coating was
performed to adhere to it. As an evaluation, water resistanceevaluation and flammability evaluation were conducted. In theformer, the treated samples showed improved moistureresistance and resistance to oxidizing agents. In the latter, thecombustion rate was measured and confirmed that the
combustion rate was sufficient. Through this study, we aimed
to acquire knowledge about the surface treatment ofmagnesium and its effects.

YOKOYAMA

ARAMAKI

Phase invertion temperature of

KODAI

KENJI

emulsion system with Diisostearyl
malateyokoyamaryotaroHoshino Yujiro

One-Electron-Oxdative Generation ofortho-Quinone Methide via Organic
Photoredox Catalysis under Visible
Light Iradiation and Their Application
to Michael Addition

In this study, three components of the water/nonionicsurfactant/diisostearyl malate system were studied toevaluate the interfacial chemical positioning of diisostearyl
malate. Experiments included visual observation andelectrical conductivity measurements. We found that (1)the HLB temperature increases with the use of mixed
surfactants, and (2) the range of increase depends on thetype of surfactant in the mixture.(1) The surfactants withlower HLB values dissolve more on the oil phase side. As
a result, the solubility of the mixed surfactant in the
NHLB-THLB graph is considered to be higher than puresurfactant. (2) The lower the HLB value of the mixed
surfactant, the larger the temperature shift.
ortho-Quinone metides are highly reactive synthetic
intermediates used in a variety of reactions. In recent year,
several studies have focused on the development ofmethods for the synthesis of these intermediates under mild
conditions without the use of strong acids or ultraviolet
light. In this work, we report on a green light-driven
Michael addition reaction via ortho-quinone methides
catalyzed by thioxanthylium-based organophotoredox
catalysts.The photoredox catalytic system presented herein
offers a novel approach to the formation of ortho-quinone
methids, achievable under mild reaction conditions
utilizing a green light source.

Yoshizawa

Fujii Makiko

HayateElucidation of Formation Mechanism

Understanding the formation mechanism of secondary ions isof Secondary Ions by Gas Cluster Ion

essential to achieve a drastic sensitivity enhancement ofBeam Irradiation

secondary ion mass spectrometry (SIMS) measurements using
Ar gas cluster ion beam (Ar-GCIB). The objective of this study
was to elucidate the formation mechanism of secondary ions in
Ar-GCIB SIMS. The influence of the matrix on the ionization
process was discussed by comparing the sensitivity change dueto the addition of different matrices. As a result, a mechanism
was proposed that the matrix acts with the cationization agent
to promote the release of cations, which in turn promotes theformation of secondary ions.

Watanabe

Takashi

Relationship between Glycolytuc

Using two pancreatic cancer cell lines that differed in terms of

HayatoAmemiya

Oscillations and Malignancy inmalignancy, I attempted to link the relationship between

Pancreatic Cancer Cells

glucose metabolism oscillations observed in cancer cell
metabolism and malignancy. While both pancreatic cancer celllines showed oscillations in a specific culture environment, therate of oscillation differed between the two cell lines. Further
validation of the experimental results by mathematicalmodeling suggested that pancreatic cancer cells may be moremalignant the higher the activity of glucose uptake, which isessential for glucose metabolism.

SUN SHUQIBAI DONGLINSHUSAThe Influence of Social Capital on the

YOSHIKAZU

Process of Female Entrepreneurship

Takeshi

Method of estimating the level of

KOBAYASHI

residual contamination during
operation and soil vapor extraction ofvolatile organochlorine compounds

In order to investigate the mechanism by which Chinese
women entrepreneurs break through the gender-based
constraints of lacking social capital, the definition andclassification of social relational capital are clarified, andStrength of Weak Ties theory and Structural Hole theory areused as the theoretical basis for the study of Chinese women
entrepreneurs through case studies. The impact of the bonding
and bridging type of social relational capital on women's
entrepreneurial process is discussed through case studies ofthree women entrepreneurs in China.
If high concentrations of soil contamination by volatileorganochlorine compounds (CVOCs) are left uninvestigated,
CVOCs can deeply penetrate the soil and aquifers, lead
remediation to be more difficult. We desire to investigate thehigh-concentration area without leaving it unattended, and toclean up the high-concentration contamination as soon as
possible.
Soil vapor extraction (SVE) can clean up contamination in
unsaturated layers with low cost, but it is expensive toinvestigate the pollution level by boring test, and it is difficult
to grasp the residual pollution level during operation.
Therefore, in this study, we were able to propose a prediction
formula that can estimate the residual contamination level inthe soil with a probability of 86% in the range of 1/3～3 times
using information such as the concentration of suction gas
during operation and during purification in SVE to worsen thehigh-concentration contamination of the unsaturated zone andreduce the remediation cost.