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Fabrication of morphology-controlled TiO_2 photocatalyst nanoparticles and improvement of photocatalytic activities by modification of Fe compounds

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Rare Metals 2015年第5期34卷 291-300页

作者： Teruhisa ohno Szu Ying Lee Yin Yang Department of Materials Science Graduate School of Engineering Kyushu Institute of Technology

Our previous studies suggested that redox reaction proceeded separately on specific exposed crystal faces of TiO2 nanoparticles. Site-selective deposition of metal or metal oxide on TiO2 specific exposed crystal faces successfully proceeded using the unique reactivity properties on the surface of TiO2 nanoparticles under photoexcitation. A remarkable improvement ofphotocatalytic activity of shape- controlled brookite and rutile TiO2 nanorods with modification of Fe^3＋ compounds was observed under visible light. Crystal face-selective metal compound modification on exposed crystal faces of TiO2 nanorods with brookite and futile phases was successfully prepared. Brookite and rutile TiO2 nanorods prepared by site-selective modification with metal compounds should be ideal visible-light responsive TiO2 photocatalysts because of the remarkable suppression of back electron transfer from TiO2 to oxidized metal com- pounds on the surface of the TiO2 nanorod with a brookite or rutile phase. In this paper, the development of exposed crystal face-controlled TiO2 nanorods with rutile and brookite phases was described. The obtained rutile and brookite TiO2 nanorod, showing remarkably high activity for degra- dation of organic compounds compared with the photocatalytic activities of anatase fine particles （ST-01）, is one of the most active commercially available photocatalysts for environmental cleanup in Japan. The technology of visiblelight responsive treatment for morphology-controlled rutile and brookite TiO2 nanorods by crystal face-selective modification of Fe^3＋ compounds was also discussed in this paper. The Fe^3＋ compound-modified rutile and brookite TiO2 nanorods show much higher activity than conventional visible-light responsive N-doped TiO2, which is commercially available in Japan.

关键词： Morphology-controlled TiO2 Separation of reaction sites Visible-light responsive TiO2 loaded with Fe^3+

Cellular response against cytosolic leakage of mitochondrial DNA: insights into the pathology of Parkinson’s disease

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Neural Regeneration Research 2022年第12期17卷 2682-2684页

作者： Akiko Sakai Hideaki matsui Department of Neuroscience of Disease Brain Research InstituteNiigata UniversityNiigataJapan

Mitochondria are important organelles for cellular metabolism and homeostasis,and their abnormalities are implicated in various *** mitochondria originate from protobacterium,their components are easily recognized by pathogen sensors called pattern-recognition receptors as foreign substances in the *** is prominent for mitochondrial DNA(mtDNA)which has different properties from nuclear DNA,such as low,if any,methylation status,vulnerability to oxidation due to the proximity to the oxidative phosphorylation machinery,and its circular *** studies indicate that perturbations in mitochondrial function and homeostasis cause mtDNA to leak into the cytoplasm,where it triggers the innate immune response(West and Shadel,2017).Although inflammatory response is a cellular strategy to resist viral infections,it can also lead to undesirable outcomes by damaging own cells and tissues.

关键词： homeostasis metabolism insight

IMMERSIVE VR VISUALIZATIONS BY VFIVE PART 1: DEVELOPMENT

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International Journal of Modeling, Simulation, and Scientific Computing 2013年第S1期4卷 40-53页

作者： AKIRA KAGEYAMA NOBUAKI ohno Graduate School of System Informatics Kobe University Kobe657-8501Japan Graduate School of Simulation Studies University of Hyogo Kobe650-0047Japan

We have been developing a visualization application for CAVE-type virtual reality(VR)systems for more than a *** application,VFIVE,is currently used in several CAVE systems in Japan for routine *** is also used as a b... 详细信息

关键词： Virtual reality CAVE immersive display system.

Toll-like receptor 9 gene mutations and polymorphisms in Japanese ulcerative colitis patients

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World Journal of Gastroenterology 2010年第46期16卷 5815-5821页

作者： Kaori Fuse kyoko Katakura Natsumi Sakamoto Hiromasa Ohira Department of Gastroenterology and Rheumatology School of MedicineFukushima Medical University

Abnormal innate immune responses toward luminal bacteria play an important role in the pathogenesis of inflammatory bowel *** has been demonstrated that bacteria having CpG DNA ameliorate experimental colitis in mice,and Toll-like receptor 9 (TLR9) signaling mediates the anti-inflammatory effects in mouse colonic inflammation.A gene variation in NOD2/CARD15 has been reported in Crohn's disease (CD) patients in Western countries,but this variation has not been identified in Japanese CD ***,we hypothesized that TLR9 is a key factor in the development of ulcerative colitis (UC),and we investigated gene mutations and polymorphisms of TLR9 in Japanese UC *** single nucleotide polymorphisms (SNPs) in TLR9 were identified in healthy controls,and were assessed in 48 UC patients and 47 healthy *** subjects were matched for age,sex and date of blood sampling from among a subgroup of *** found that TLR9-1486CC,1174GG and 2848AA increase the risk of UC [odds ratio (OR) 2.64,95% confidence interval (95% CI):1.73-6.53,P=0.042],and TLR9-1486TT,1174AA and 2848GG decrease the risk of UC (OR 0.30,95% CI:0.10-0.94,P=0.039),although there were no correlations between SNPs and disease phenotype or TLR9 mRNA *** findings suggest that TLR9 polymorphisms are associated with increased susceptibility to UC.

关键词： Toll-like receptor 9 Single nucleotide polymorphism Ulcerative colitis Inflammatory bowel disease Innate immunity

Long-Term Effect of TMD on Vibration Control of An MDOF Offshore Fixed Platform

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China Ocean Engineering 2003年第4期18卷 481-494页

作者：石湘 Tetsuya matsui WU Minger Graduate School of Environmental Studies Nagoya University Nagoya 464-8603 Japan Department of Architecture Meijo University Nagoya 468-8503 Japan

A three-dimensional fixed offshore platform in deep water modeled by the finite element method is studied in this paper. Analysis of the dynamic response of the MDOF structure is realized taking the non-linearity of the wave drag force and the wave-structure interaction into account. The structural response statistics, which have Gaussian distributions, are used to evaluate the vibration effect of the structure without TMD and with TMD. And an optimal method to design TMD controlling the first mode of the multi-mode structure is proposed. Moreover, the probabilities of occurrence of sea states at the platform site are considered for prediction of the long-term effect of a TMD. Simulation results demonstrate that the long-term effect of a well-designed TMD is good and the practical use is possible due to the good stability of its optimal parameters under different sea states.

关键词： offshore fixed platform vibration control tuned mass damper multi degree of freedom optimal design

A study of optimal switching problem in limited-cycle with multiple periods

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2010年第12期11卷 933-937页

作者： Jing SUN Hisashi YAMAMOTO Masayuki matsui Graduate School of Engineering Nagoya Institute of Technology Gokiso-cho Showa-ku Nagoya Aichi 466-8555 Japan Department of System Design Management Systems Engineering Tokyo Metropolitan University 6-6 Asahigaoka Hino Tokyo 191-0065 Japan Department of lnformatics Graduate School of lnformatics and Engineering The University of Electro-Communications 1-5-1 Chofugaoka Chofu-shi Tokyo 182-8585 Japan

In a social system or production line,the restrictions of the cost and the due-time exist in each ***,whether these restrictions are satisfied is dependent not only on the risks of this period,but also on the risks generated *** consider controlling the production process by switching the processing rate to a faster one at a given *** paper deals with the optimal switching period to minimize the total expected cost of the production *** first propose the optimal switching period model,and then the mathematic formulation of the total expectation is ***,the policy of optimal switching period is investigated in detail by numerical experiments.

关键词： Limited-cycle problem Multi-period Optimal switching period Production seat system Manufacturing line

Effect of FeO concentration in sinter iron ore on reduction behavior in a hydrogen-enriched blast furnace

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International Journal of Minerals,Metallurgy and Materials 2022年第10期29卷 1820-1829页

作者： Ko-ichiro ohno Takayuki Maeda Kazuya Kunitomo Masashi Hara Department of Materials Faculty of EngineeringKyushu University744 MotookaNishi-kuFukuoka 819-0395Japan Kashima Area East Nippon WorksNippon Steel Corporation3 HikariKashima CityIbaraki 314-0014Japan

Japan started the national project“COURSE 50”for CO_(2) reduction in the *** project aimed to establish novel technologies to reduce CO_(2) emissions with partially utilization of hydrogen in blast furnace-based ironmaking by 30%by around 2030 and use it for practical applications by *** idea is that instead of coke,hydrogen is used as the reducing agent,leading to lower fossil fuel consumption in the *** has been reported that the reduction behavior of hematite,magnetite,calcium ferrite,and slag in the sinter is different,and it is also considerably influenced by the sinter *** study aimed to investigate the reduction behavior of sinters in hydrogen enriched blast furnace with different mineral morphologies in CO-CO_(2)-H2 mixed *** an experimental sample,two sinter samples with significantly different hematite and magnetite ratios were prepared to compare their reduction *** reduction of wustite to iron was carried out at 1000,900,and 800℃ in a CO-CO_(2)-H2 atmosphere for the mineral morphology-controlled sinter,and the following findings were *** reduction rate of smaller amount of FeO led to faster increase of the reduction rate curve at the initial stage of ***-observations of reduced samples showed that the reaction proceeded from the outer periphery of the sample toward the inside,and a reaction interface was observed where reduced iron and wustite ***-observations revealed three layers,namely,wustite single phase in the center zone of the sample,iron single phase in the outer periphery zone of the sample,and iron oxide-derived wustite FeO and iron,or calcium ferritederived wustite'FeO'and iron in the reaction interface zone.A two-interface unreacted core model was successfully applied for the kinetic analysis of the reduction reaction,and obtained temperature dependent expressions of the chemical reaction coefficients from each mineral phases.

关键词： hydrogen reduction wustite hematite magnetite calcium ferrite two-interface unreacted core model COURSE50

Mutual regulation between Hippo signaling and actin cytoskeleton

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Protein & Cell 2013年第12期4卷 904-910页

作者： Yurika matsui Zhi-Chun Lai I ntercollege Graduate Degree Program in Cell and Developmental Biology The Pennsylvania State UniversityUniversity ParkPA 16802USA Department of Biology The Pennsylvania State UniversityUniversity ParkPA 16802USA Department of Biochemistry and Molecular Biology The Pennsylvania State UniversityUniversity ParkPA 16802USA

Hippo signaling plays a crucial role in growth control and tumor suppression by regulating cell proliferation,apoptosis,and *** Hippo signaling is regulated has been under extensive *** the past three years,an increasing amount of data have supported a model of actin cytoskeleton blocking Hippo signaling activity to allow nuclear accumulation of a downstream effector,Yki/Yap/*** the other hand,Hippo signaling negatively regulates actin cytoskeleton *** review p rovides insight on the mutual regulatory mechanisms between Hippo signaling and actin cytoskeleton for a tight control of cell behaviors during animal development,and points out outstanding questions for further investigations.

关键词： Hippo signaling actin cytoskeleton negative feedback growth control development

Marangoni Convection in the LiCaAIF_6 Crystal Growth by the Czochralski Technique

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Journal of Thermal Science 2002年第4期11卷 348-352页

作者： Hiroshi Mizuseki Touetsu Shishido kyoko Ichinoseki Yoshiyuki Kawazoe Institute for Materials Research Tohoku UniversityInstitute for Materials Research Tohoku UniversityInstitute for Materials Research Tohoku UniversityInstitute for Materials Research Tohoku University Sendai 980-8577 Japan Sendai 980-8577 Japan Sendai 980-8577 Japan Sendai 980-8577 Japan

Numerical simulation of the mixed convection induced by buoyancy, crystal rotation, and also unbalanced surface tension at the melt-gas interface is conducted by means of the finite volume method in the model of the Czochralski crystal growth. The role of Marangoni convection in the heat and mass transfer is investigated by the comparison of the models with and without surface tension included, and our results indicate that Marangoni convection plays an important role in the heat and mass transfer near the interface of melt and crystal, and also the convection structure.

关键词： marangoni convection buoyancy convection Czochralski technique crystal growth computer simulation.