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Journal of Energy Chemistry 2016年第2期25卷 304-308页

作者： Nobuhiro Ishito kenji hara Kiyotaka Nakajima Atsushi Fukuoka Institute for Catalysis Hokkaido University Graduate School of Chemical Sciences and Engineering Hokkaido University School of Engineering Tokyo University of Technology

Thermal decomposition of formic acid on SiO2, CeO2 and γ-Al2O3 was studied as an elementary step of reverse water–gas shit reaction（RWGS） over supported Au catalysts. γ-Al2O3 showed the highest CO selectivity among the tested oxides in the decomposition of formic acid. Infrared spectroscopy showed the formation of four formate species on γ-Al2O3： three η~1-type and one μ~2-type species, and these formates decomposed to CO at 473 K or higher. Au-loaded γ-Al2O3 samples were prepared by a depositionprecipitation method and used as catalysts for RWGS. The supported Au catalyst gave CO with high selectivity over 99% from CO2 and H2, which is attributed to the formation of formates on Au and subsequent decomposition to CO on γ-Al2O3.

关键词： Reverse water–gas shift reaction Carbon dioxide Hydrogen Formate Carbon monoxide Alumina Gold

Conversion of glycerol to acrolein by mesoporous sulfated zirconia-silica catalyst

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Chinese Journal of Catalysis 2017年第3期38卷 420-425页

作者： Hirokazu Kobayashi Shogo Ito kenji hara Atsushi Fukuoka 北海道大学触媒科学研究所日本北海道札幌001-0021 北海道大学综合化学院日本北海道札幌060-8628 东京工科大学工学部日本东京八王子192-0982

A mesoporous sulfated zirconia-silica catalyst bearing only Br？nsted acid sites converted glycerol to acrolein in 81%yield with 82% *** time yield as high as 9.0 mmol h^（-1） g_（cat）^（-1） was achieved even at a low reaction temperature of 523 *** catalytic activity and selectivity were higher than those of typical sulfated *** is proposed that the milder acidity due to dilution of zirconium species by silica and large pore size for faster diffusion contributed towards the better catalytic performance.

关键词： Acrolein Glycerol Mesopore Sulfated zirconia

The effect of soybean trypsin inhibitor on the degradation of myofibrillar proteins by an endogenous serine proteinase of crucian carp

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The effect of soybean trypsin inhibitor on the degradation o...

Simultaneous formation of sorbitol and gluconic acid from cellobiose using carbon-supported ruthenium catalysts

中国食品科学技术学会第五届年会暨第四届东西方食品业高层论坛

作者： kenji hara faculty of fisheries Nagasaki universityNagasakiJapan852-8521

The effect of soybean trypsin inhibitor(STI)on the degradation of crucian carp myofibrillar proteins caused by an endogenous myofibril-bound serine proteinase (MBSP)was *** trypsin inhibitor was purified to high homogeneity and mixed with myofibrils and its inhibitory effect on myofibrillar protein degradation was *** the absence of STI,proteolysis of myofibrillar proteins including myosin heavy chain,α-actinin,actin and tropomyosin could be identified after incubation at 55℃ for 5 to 20 min depending on the kind of the *** contrast,in the presence of STI,with final concentration of 0.75μg/ml,proteolysis of these proteins was greatly suppressed even after incubation for 1 h,suggesting STI is an effective inhibitor in preventing myofibrillar protein degradation caused by a serine proteinase that is quite possibly *** STI reveals disadvantage for food digestion,as a native food grade inhibitor,it has the safety as food additive,especially at low *** in surimi production,the decrease of elasticity is always accompanied with the degradation of myofibrillar proteins,thus,the present result suggested the possibility that STI be applicable in surimi production in order to enhance the elasticity that is the quality of the final products.

关键词： crucian carp degradation myofibril inhibition serine proteinase soybean trypsin inhibitor

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Journal of Energy Chemistry 2013年第2期22卷 290-295页

作者： Tasuku Komanoya Hirokazu Kobayashi kenji hara Wang-Jae Chun Atsushi Fukuoka Catalysis Research Center Hokkaido University Kita 21 Nishi 10 Kita-ku Sapporo Hokkaido 001-0021 Japan Division of Chemical Sciences and Engineering Graduate School of Chemical Sciences and Engineering Hokkaido University Kita 13 Nishi 8 Kita-ku Sapporo Hokkaido 060-8628 Japan Division of Arts and Sciences International Christian University 3-10-2 Osawa Mitaka Tokyo 181-8585 Japan

A carbon-supported Ru catalyst, Ru/BP2000, is able to simultaneously convert cellobiose into sorbitol and gluconic acid. This reaction occurs as the result of hydrolytic disproportionation in water at 393 K under an Ar atmosphere, without bases or sacrificial reagents. In-situ XANES measurements suggest that the active Ru species involved is composed of partially oxidized Ru metal.

关键词： cellobiose supported ruthenium catalyst hydrolysis disproportionation

Purification and characterization of lizard fish pepsinogens and pepsins

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Purification and characterization of lizard fish pepsinogens...

Superconducting joints using reacted multifilament MgB_(2)wires:A technology toward cryogen-free MRI magnets

中国海洋生化学术会议

作者： Takeyuki Kanto kenji hara Faculty of Fisheries Nagasaki University Nagasaki 852 Japan

Five pepsinogens were identified in lizard fish (Saurida wanieso) stomach and two of them (PG-Ⅰand PG-Ⅱ) were purified to homogeneity by column chromatographies on DEAE-Sephacel, Ultrogel AcA54, DEAE-Sepharose and Poly-L-Lysine Agarose. The molecular weights of the two purified PGs were about 41 kDa. Both pepsinogens were converted into pepsins within a few minutes under pH 2. 5. Corresponding pepsins were also purified by a chromatography on S-Sepharose and their molecular weights were 36 kDa as determined on SDS-PAGE. Optimum pHs of the pepsins were around 3. 5 and optimum temperatures were 45℃using hemoglobin as substrate. Both enzymes showed high sensitivity toward pepstatin A, a specific inhibitor of aspartic proteinases. The N-terminal amino acid sequences of PG-Ⅰand PG-Ⅱas determined to the 16th residue were exactly the same and showed high identity to pepsinogens of other animals.

关键词： lizard fish pepsinogen pepsin purification stomach

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Journal of Magnesium and Alloys 2024年第1期12卷 159-170页

作者： Dipak Patel Akiyoshi Matsumoto Hiroaki Kumakura Yuka hara Toru hara Minoru Maeda Hao Liang Yusuke Yamauchi Seyong Choi Jung Ho Kim Md Shahriar A.Hossain School of Mechanical and Mining Engineering The University of QueenslandSt LuciaQueensland 4072Australia National Institute for Materials Science(NIMS) 1-2-1 SengenTsukubaIbaraki 305-0047Japan Department of Electrical Engineering and Kangwon High Magnetic Field Center Institute of Quantum Convergence TechnologyKangwon National UniversityGangwon 24341Republic of Korea Australian Institute for Bioengineering and Nanotechnology(AIBN) The University of QueenslandSt LuciaQueensland 4072Australia Department of Materials Process Engineering Graduate School of EngineeringNagoya UniversityNagoyaAichi 464-8603Japan Institute for Superconducting and Electronic Materials Australian Institute for Innovative MaterialsUniversity of WollongongNorth WollongongNew South Wales 2500Australia

The development of superconducting joining technology for reacted magnesium diboride(MgB_(2))conductors remains a critical challenge for the advancement of cryogen-free MgB_(2)-based magnets for magnetic resonance imaging(MRI).Herein,the fabrication of superconducting joints using reacted carbon-doped multifilament MgB_(2)wires for MRI magnets is *** achieve successful superconducting joints,the powder-in-mold method was employed,which involved tuning the filament protection mechanism,the powder compaction pressure,and the heat treatment *** fabricated joints demonstrated clear superconducting-to-normal transitions in self-field,with effective magnetic field screening up to 0.5 T at 20 *** evaluate the interface between one of the MgB_(2)filaments and the MgB_(2)bulk within the joint,serial sectioning was conducted for the first time in this type of superconducting *** serial sectioning revealed space formation at the interface,potentially caused by the volume shrinkage associated with the MgB_(2)formation or the combined effect of the volume shrinkage and the different thermal expansion coefficients of the MgB_(2)bulk,the filament,the mold,and the sealing *** findings are expected to be pivotal in developing MgB_(2)superconducting joining technology for MRI magnet applications through interface engineering.

关键词： Mg B2 superconducting joint MgB_(2)conductor MRI applications Cryogen-free magnet Persistent-mode operation

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尿中二氯苯异构体的气相色谱/质谱法分析

分析化学 2000年第4期28卷 443-445页

作者：刘俊亭原建二柏村征一 110001 中国医科大学基础医学院化学教研室!沈阳

应用项空固相微萃取法提取尿中邻、间、对位二氯苯。0．5mL检尿密封在12mL玻璃瓶中，30℃下用100μm聚二甲基硅氧烷萃取头萃取15min。用重氢对二甲苯作内标。选择离子监测m/z146（二氯苯异构体）和m／z116内标）两分子离子峰。以得到的... 详细信息

应用项空固相微萃取法提取尿中邻、间、对位二氯苯。0．5mL检尿密封在12mL玻璃瓶中，30℃下用100μm聚二甲基硅氧烷萃取头萃取15min。用重氢对二甲苯作内标。选择离子监测m/z146（二氯苯异构体）和m／z116内标）两分子离子峰。以得到的上述两峰面积之比为纵坐标，以二氯苯异构体的浓度为横坐标做校正曲线。尿中检测浓度可达0．01mg/L。用此方法快速准确地测定了二氯苯中毒患者尿中浓度的经时变化。

关键词：固相微萃取固相萃取色谱法

运用聚乳酸-羟基乙酸共聚物膜-固定化条件培养液引导骨再生的实验研究

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中国口腔医学继续教育杂志 2016年第6期19卷 288-297页

作者： Shuhei Tsuchiya Masahiro Ohmori kenji hara Masahito Fujio Masayuki lkeno Hideharu Hibi Minoru Ueda 黄明娣不详中山大学附属口腔医院广州市陵园西路56号510060

目的：探讨是否可以通过使用条件培养液（CM）和引导骨再生（GBR）技术加速骨再生。材料与方法：CM取自大鼠骨髓基质干细胞（BMSCs）。CM被固定在聚乳酸一羟基乙酸共聚物（PLGA）膜上．该膜需用0，5mol／L氢氧化钠（NaOH）处理以提高亲... 详细信息

目的：探讨是否可以通过使用条件培养液（CM）和引导骨再生（GBR）技术加速骨再生。材料与方法：CM取自大鼠骨髓基质干细胞（BMSCs）。CM被固定在聚乳酸一羟基乙酸共聚物（PLGA）膜上．该膜需用0，5mol／L氢氧化钠（NaOH）处理以提高亲水性。实验分为4个组：PLGA膜处理①磷酸盐缓冲液（PBS；PBS—M）．②PBS和0．5mol／LNaOH（亲水性处理；PBS-HM），③CM（CM—M）．④CM和0．5mol／LNaOH（CM—HM）。通过扫描电镜观察这些实验性膜。液相色谱-串联质谱法（LC／MS／MS）测定固定在PLGA膜上的来自骨髓间充质干细胞表达的蛋白。细胞增殖实验和碱性磷酸酶（ALP）活性测定分析CM对骨髓间充质干细胞活性的影响。实验性膜被移植到大鼠颅骨骨缺损模型。移植4周和8周后进行显微CT和组织学分析。结果：来自骨髓间充质干细胞的CM可固定于PLGA膜上。PLGA膜的亲水处理可增强CM的固定。LC／MS／MS分析表明．在PLGA膜表面的固定化蛋白质属于细胞外基质蛋白．如胶原蛋白、核心蛋白多糖、纤连蛋白。CM里从PLGA膜释放出的蛋白质．可以促进大鼠骨髓间充质干细胞的细胞增殖和碱性磷酸酶活性。被CM—HM处理过的骨缺损区域新骨形成明显高于被其他组膜处理对应的骨缺损区域。结论：PLGA膜经0.5mol／LNaOH和CM处理后可促进此大鼠颅骨缺损模型的骨再生。

关键词：条件培养液引导骨组织再生组织工程

Proposal of a Method to Easily Understand Rainfall Infiltration in Railway Embankments

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Journal of Civil Engineering and Architecture 2024年第6期18卷 261-268页

作者： Takashi Nakayama Tadashi hara Keigo Koizumi C.S.Inspector Co. Ltd.2-7-2 Nambanaka Naniwa-Ku Osaka-ShiOsaka-Fu 556-0011Japan Research and Education Faculty Kochi University2-5-1 Akebonocho Kochi-ShiKochi-Ken 780-8072Japan Earth Watch Institute Inc.8-10 Toyotsucho Suita-ShiOsaka-Fu 564-0051Japan

Slope failures due to heavy or prolonged rain have been occurring frequently in Japan in recent *** railway embankments,even small-scale surface collapse can result in track ***,train operation during rainy periods is regulated according to empirical rules based on rainfall and disaster ***,the validity of operation regulations is lacking because the rainfall infiltration circumstances inside the slope are *** have been attempting to understand rainfall infiltration in railway embankments by applying a method of predicting surface collapse from observations of volumetric water content in the *** used previous field monitoring and model experiments to propose a method for easily understanding the state of rainfall infiltration in the surface layer of an embankment using the relative history of volumetric water content at different *** this study,we applied this simple determination method to railway embankments with different topography and geological environments to demonstrate the versatility of the method.

关键词： Railway embankments field monitoring volumetric water content

Impact of postoperative sexual function on health-related quality of life after robot-assisted radical prostatectomy

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Current Urology 2024年第2期18卷 148-154页

作者： Yuya Iwahashi Ryusuke Deguchi Satoshi Muraoka Takahito Wakamiya Shimpei Yamashita Kazuro Kikkawa Yasuo Kohjimoto Isao hara Department of Urology Wakayama Medical UniversityWakayamaJapan

Background:We investigated potential disparities in health-related quality of life,particularly concerning urinary function,between patients with preserved and those with impaired sexual function after robot-assisted radical prostatectomy(RARP).Materials and methods:BetweenDecember 2012 and April 2020,704men underwent RARP in our *** study included 155 patients with a preoperative 5-item International Index of Erectile Function(IIEF-5)of≥12 points and an assessable IIEF-5 at 12 months ***-related quality of life was assessed using the 8-item Short-Form Health Survey and Expanded Prostate Cancer Index Composite(EPIC)preoperatively and at 3,6,and 12months postoperatively.A logistic regression analysis andWilcoxon rank sum tests were ***:Patients were grouped according to the median IIEF-5 score 12 months after surgery:those with preserved sexual function(n=71)and those with impaired sexual function(n=84).The mental component summary of the 8-item Short-Form Health Survey was better in the group with preserved sexual function at 6 months postoperatively than in the group with impaired sexual function(p<0.01).In the EPIC,the group with preserved sexual function performed better not only in the sexual domain but also in the urinary domain at all time points comparedwith the groupwith impaired sexual function(p<0.01).In the comparison of the urinary subdomains of the EPIC,there were no significant differences in urinary function or incontinence,but there were significant differences in urinary distress and irritative/obstructive scores(p<0.01).Conclusions:Patients with preserved postoperative sexual function after RARP showed better urinary function than those with impaired sexual ***,preserved sexual function is closely associated with urinary function.

关键词： Prostatectomy Robot-assisted radical prostatectomy Health-related quality of life Sexual function Urinary function