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Efficient and stable tin-based perovskite solar cells by introducing π-conjugated Lewis base

Science China Chemistry 2020年第1期63卷 107-115页

作者： Tianhao Wu Xiao Liu Xin He Yanbo Wang Xiangyue Meng takeshi Noda Xudong Yang Liyuan Han State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai 200240China Photovoltaic Materials Group Center for Green Research on Energy and Environmental MaterialsNational Institute for Materials ScienceTsukubaIbaraki 305-0047Japan Engineering Research Center of Environment-Friendly Functional Materials for Ministry of Education Institute of Materials Physical ChemistryCollege of Material Science and EngineeringHuaqiao UniversityXiamen 361021China Faculty of Pure&Applied Science University of TsukubaTsukubaIbaraki 305-8571Japan

Tin-based perovskite solar cells(TPSCs)as the most promising candidate for lead-free PSCs have incurred extensive researches all over the ***,the crystallization process of tin-based perovskite is too fast during the solution-deposited process,resulting in abundant pinholes and poor homogeneity that cause serious charge recombination in perovskite ***,we employed theπ-conjugated Lewis base molecules with high electron density to systematically control the crystallization rate of FASnI3 perovskite by forming stable intermediate phase with the Sn-I frameworks,leading to a compact and uniform perovskite film with large increase in the carrier ***,the introduction of theπ-conjugated systems also retards the permeation of moisture into perovskite crystal,which significantly suppresses the film degradation in *** benefits contributed to a stabilizing power conversion efficiency(PCE)of 10.1%for the TPSCs and maintained over 90%of its initial PCE after 1000-h light soaking in ***,a steady-state efficiency of 9.2%was certified at the accredited test center.

关键词： FASn I3 perovskite perovskite solar cells π-conjugated Lewis base power conversion efficiency crystallization rate

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Effects of brinzolamide on rabbit ocular blood flow in vivo and ex vivo

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International Journal of Ophthalmology(English edition) 2018年第5期11卷 719-725页

作者： Ya-Ru Dong Shi-Wei Huang Ji-Zhe Cui takeshi Yoshitomi Department of Ophthalmology the Second Hospital of Jilin University Department of Ophthalmology Akita University School of Medicine

AIM：To investigate if significant improvement of optic disc blood flow（ODBF） occurs after instillation of brinzolamide onto rabbit ***：Testing of bilateral intraocular pressure（IOP） and left ODBF in 10 male rabbits took place every 3 h over a 24 h ***（1% ophthalmic solution,two drops at 9：00 and 21：00） was administered to the left ***,assessed using laser speckle flowgraphy,was determined as the mean blur rate（MBR）.Furthermore,the effect of brinzolamide on isolated rabbit ciliary arteries using isometric tension recording system was ***：After brinzolamide instillation,IOP was significantly decreased in the left ***-vessel was greater at 18：00 and 21：00（P〈0.05） than in the *** and MBR-average were greater at 18：00（P〈0.05） than in the *** isolated arteries pre-contracted with a high-K solution,brinzolamide induced concentration-dependent relaxation,reaching 46.1%±9%（n=21） at 1 mmol/*** Ca^2＋-free solutions,incubation with brinzolamide suppressed 1 μmol/L histamine-induced contractions（P〈0.05）.CONCLUSION：Brinzolamide decreases IOP and increases ocular blood *** direct vasodilatory effect of brizolamide is mediated by suppression of Ca^2＋ release from intracellular calcium stores.

关键词： brinzolamide ocular blood flow vasodilation intraocular pressure ciliary artery

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Fiber Changes Our Life

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Advanced Fiber Materials 2019年第1期1卷 1-2页

作者： Meifang Zhu takeshi Kikutani Tianxi Liu Seeram Ramakrishna Guangming Tao State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and EngineeringDonghua University2999 North RenminRoadSongjiang DistrictShanghai 201620China Department of Materials Science and Engineering Tokyo Institute of Technology2-12-1OokayamaMeguro-kuTokyo 152-8550Japan Centre for Nanofibers and Nanotechnology National University of Singapore3 Science Drive 3Singapore 117543Singapore Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information Huazhong University of Science and TechnologyLuoyu Road 1037Wuhan 430074China

It is with great enthusiasm that we introduce the inaugural issue of Advanced Fiber Materials,a peer-reviewed,inter-national and interdisciplinary research journal published by Springer Nature *** aim is to provide a framework for research focused on fiber and Fiber-related *** are synonymous with the history of *** textiles from natural fibers such as cotton,hemp,linen,silk and wool have been used by the earlier humans in almost all world *** on,chemical fibers,nano-fibers,functional fibers,and fiber-derived devices emerged.

关键词： fibers wool fiber

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Fulminant phlegmonitis of the esophagus, stomach,and duodenum due to Bacillus thuringiensis

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World Journal of Gastroenterology 2015年第12期21卷 3741-3745页

作者： Hisatake Matsumoto Hiroshi Ogura Masafumi Seki Mitsuo Ohnishi takeshi Shimazu Department of Traumatology and Acute Critical Medicine Osaka University Graduate School of Medicine Division of Infection Control and Prevention Osaka University Graduate School of Medicine

We report a case of phlegmonitis of the esophagus, stomach, and duodenum in patient in an immunocompromised state. Culture of gastric juice and blood yielded Bacillus thuringiensis. This case showed that even low-viru... 详细信息

关键词： Phlegmonous gastritis Esophagus Duodenum Bacillus

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Estimation of the minimum miscibility pressure for CO_(2)ecrude-oil systems by molecular dynamics simulation

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Petroleum Research 2023年第1期8卷 1-10页

作者： Wuge Cui Yunfeng Liang Yoshihiro Masuda takeshi Tsuji Toshifumi Matsuoka Haruka Takahashi Department of Systems Innovation School of EngineeringThe University of TokyoTokyo113-8656Japan Fukada Geological Institute Tokyo113-0021Japan JX Nippon Oil&Gas Exploration Corporation Tokyo100-8163Japan

CO_(2)injection is an effective enhanced oil recovery technique for energy security with the benefits of carbon *** reach the maximum oil recovery,the miscible condition between CO_(2)and oil needs to be maintained in the reservoir,which requires the operation pressure to be higher than the minimum miscibility pressure(MMP).There are two types of MMPs:the first-contact MMP(FC-MMP)and the multi-contact MMP(MC-MMP).In this study,molecular dynamics simulations were performed for the CO_(2)eoil interface system using two simplified digital oil models:a Bakken dead oil with four lumping components and a live-crude-oil model with 50 types of oil molecules but with no asphaltenes and heavy oil *** vanishing interfacial tension method was used to predict the *** CO_(2)eoil volume ratios were considered to mimic the different degrees of *** estimate the MMP accurately and rapidly,the interfacial tension in the low-pressure regime was used for the ***,different MMPs were obtained,where the MMP value increased with increasing CO_(2)eoil volume ***-MMP can be predicted when the CO_(2)eoil volume ratio is sufficiently *** the CO_(2)eoil volume ratio was approximately 9e10,MMP was closest to the actual MC-MMP *** condensing and vaporizing mechanism was also studied at the molecular *** pure CO_(2)was used,only the vaporizing effect on MMP *** was found that the intermediate C2eC6 components have the main effect on the MMP *** study can help to establish a computational protocol to estimate FC-MMP and MC-MMP,which are widely used in reservoir engineering.

关键词： CO_(2)-EOR Minimum miscibility pressure Molecular dynamics simulations Condensing and vaporizing mechanism CO_(2)eoil volume ratio Crude oil

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Hemodynamics in the portal vein evaluated by pulse wave Doppler ultrasonography in patients with chronic hepatitis C treated with interferon

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World Journal of Gastroenterology 2005年第3期11卷 396-399页

作者： Shigeo Nakanishi Katsuya Shiraki Kouji Yamamoto Mutsumi Koyama Noboru Kimura takeshi Nakano First Department of Internal Medicine Toshiba Corporation

AIM: To employ pulse wave Doppler ultrasonography to evaluate the changes in portal blood flow velocity in patients with chronic hepatitis C (CHC) receiving interferon (IFN) treatment. METHODS: The subjects in this study were 14 patients (13 men and l woman) with CHC who received IFN treatment. Portal blood flow velocity was measured in the vessels at the porta hepatis at four time points: before IFN administration (pre-IFN), 2 wk after the start of administration (wk 2), 24 wk after the start of administration (wk 24, i.e., the end of IFN administration), and 24 wk after the end of administration (wk 48). RESULTS: The patients with CHC in whom IFN treatment resulted in complete elimination or effective elimination of viruses showed a significant increase in portal blood flow velocity at the end of IFN treatment compared with that before IFN treatment. In contrast, when IFN was ineffective, no significant increase in portal blood flow velocity was observed at wk 24 or 48 compared with the pre-IFN value. In addition, the patients with CHC in whom IFN was ineffective showed significantly lower portal blood flow velocity values than control subjects at all measurement time points. CONCLUSION: Pulse wave Doppler ultrasonography is a noninvasive and easily performed method for evaluating the effects of IFN treatment in patients with CHC. This technique is useful for measuring portal blood flow velocity before and 24 wk after IFN administration in order to evaluate the changes over time, thus assessing the effectiveness of IFN treatment.

关键词： Chronic Hepatitis C Interferon Pulsed-wave Doppler ultrasonography Portal Vein Hemodynamics

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Rotation of Biological Cells:Fundamentals and Applications

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Engineering 2022年第3期8卷 110-126页

作者： Tao Tang Yoichiroh Hosokawa takeshi Hayakawa Yo Tanaka Weihua Li Ming Li Yaxiaer Yalikun Division of Materials Science Nara Institute of Science and TechnologyNara 630-0192Japan Institute of Innovation for Future Society Nagoya UniversityAichi 464-8603Japan Department of Precision Mechanics Faculty of Science and EngineeringChuo UniversityTokyo 112-8551Japan Graduate School of Frontier Biosciences Osaka UniversityOsaka 565-0871Japan RIKEN Center for Biosystems Dynamics Research Osaka 565-0871Japan School of Mechanical MaterialsMechatronicand Biomedical EngineeringUniversity of WollongongWollongongNSW 2522Australia School of Engineering Macquarie UniversitySydneyNSW 2109Australia

Cell rotation is one of the most important techniques for cell manipulation in modern bioscience,as it not only permits cell observation from any arbitrary angle,but also simplifies the procedures for analyzing the mechanical properties of cells,characterizing cell physiology,and performing *** approaches have been reported for rotating cells in a wide range of academic and industrial *** them,the most popular are micro-robot-based direct contact manipulation and field-based non-contact methods(e.g.,optical,magnetic,electric,acoustic,and hydrodynamic methods).This review first summarizes the fundamental mechanisms,merits,and demerits of these six main groups of approaches,and then discusses their differences and limitations in *** aim to bridge the gap between each method and illustrate the development progress,current advances,and prospects in the field of cell rotation.

关键词： Cell rotation Cell reorientation Micromanipulation Microfluidics

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Computer-generated image hologram

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Chinese Optics Letters 2011年第12期9卷 20-23页

作者： takeshi Yamaguchi Hiroshi Yoshikawa Department of Electronics and Computer Science College of Science and Technology

We investigate the computer-generated hologram with full parallax and which can be reconstructed with white light. The object of the hologram is processed from three-dimensional computer graphics polygon data and has shaded surface for hidden surface removal. The optically reconstructed image from the printed hologram is evaluated.

关键词： Computer-generated image hologram CGH

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Model Transformer Evaluation of High-Permeability Grain-Oriented Electrical Steels

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Journal of Materials Science & Technology 2000年第2期16卷 223-227页

作者： Masayoshi Ishida, Seiji Okabe, takeshi Imamura and Michiro Komatsubara (Kawasaki Steel Corporation, Kurashiki 712-8511, Japan) Kawasaki Steel Corporation Kurashiki 712-8511 Japan

The dependence of transformer performance on the material properties was investigated using two laboratory-processed 0.23 mm thick grain-oriented electrical steels domain-refined with elec-trolytically etched grooves having different magnetic properties. The iron loss at 1.7 T, 50 Hz and the flux density at 800 A/m of material A were 0.73 W/kg and 1.89 T, respectively; and those of material B, 0.83 W/kg and 1.88 T. Model stacked and wound transformer core experiments using the tested materials exhibited performance well reflecting the material characteristics. In a three-phase stacked core with step-lap joints excited to 1.7 T, 50 Hz, the core loss, the exciting current and the noise level were 0.86 W/kg, 0.74 A and 52 dB, respectively, with material A; and 0.97 W/kg, 1.0 A and 54 dB with material B. The building factors for the core losses of the two materials were almost the same in both core configurations. The effect of higher harmonics on transformer performance was also investigated.

关键词： Model Transformer Evaluation of High-Permeability Grain-Oriented Electrical Steels

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Isolation of a Novel Lodging Resistance QTL Gene Involved in Strigolactone Signaling and Its Pyramiding with a QTL Gene Involved in Another Mechanism

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Molecular Plant 2015年第2期8卷 303-314页

作者： Kenji Yano Taiichiro Ookawa Koichiro Aya Yusuke Ochiai Tadashi Hirasawa takeshi Ebitani takeshi Takarada Masahiro Yano Toshio Yamamoto Shuichi Fukuoka Jianzhong Wu Tsuyu Ando Reynante Lacsamana Ordonio Ko Hirano Makoto Matsuoka Bioscience and Biotechnology Center Nagoya University Nagoya Aichi 464-8601 Japan Graduate School of Agriculture Tokyo University of Agriculture and Technology Fuchu Tokyo 183-8509 Japan Agricultural Research Institute Toyama Agricultural Forestry & Fisheries Research Center Toyama 939-8153 Japan National Institute of Agrobiological Sciences Tsukuba Ibaraki 305-8602 Japan These authors contributed equally to this article.

Lodging has been a major roadblock to attaining increased crop productivity. In an attempt to understand the mechanism for culm strength in rice, we isolated an effective quantitative trait locus （QTL）, STRONG CULM3 （SCM3）, the causal gene of which is identical to rice TEOSINTE BRANCHED1 （OsTB1）, a gene previously reported to positively control strigolactone （SL） signaling. A near-isogenic line （NIL） carrying SCM3 showed enhanced culm strength and increased spikelet number despite the expected decrease in tiller number, indicating that SL also has a positive role in enhancing culm strength and spikelet number. We produced a pyramiding line carrying SCM3 and SCM2, another QTL encoding AP01 involved in panicle development. The NIL-SCM2＋SCM3 showed a much stronger culm than NIL-SCM2 and NIL-SCM3 and an increased spikelet number caused by the additive effect of these QTLs. We discuss the importance of utilizing suitable alleles of these STRONG CULM QTLs without inducing detrimental traits for breeding.

关键词： culm OsTB1 strigolactone lodging resistance quantitative trait loci

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