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The electronic structure of Nb＿3Al/Nb＿3Sn, a new test case for flat/steep band model of superconductivity

Journal of Modern Transportation 2014年第3期22卷 183-186页

作者： Yanlong ding Shuiquan deng Yong Zhao Key Laboratory of Magnetic Levitation Technologies and Maglev Trains Ministry of Education of China and Superconductivity and New Energy R&D Center Southwest Jiaotong University

In this work, we choose Nb3Al/Nb3Sn as a new test case for flat/steep band model of superconductivity. Based on the density functional theory in the generalized gradient approximation, the electronic structure of Nb3Al/ Nb3Sn has been studied. The obtained results agree well with those of the earlier studies and show clearly fiat bands around the Fermi level. The steep bands as characterized in this work locate around the M point in the first Brillouin zone. The obtained results reveal that Nb3Al/Nb3Sn fits more to the ＂Flat/steep＂ band model than to the van-Hove singularity scenario. The fiat/steep band condition for superconductivity implies a different thermodynamic behavior of superconductors other than that predicted from the conventional BCS theory. This observation sets up an indicator for selecting a suitable superconductor when its large-scale industrial use is needed, for example, in superconducting maglev system or ITEr project.

关键词： Nb3Al/Nb3Sn - Electronic structure - Flat/ steep band model First-principle

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Transport properties and microstructure of La_(0.7)Sr_(0.3)MnO_3 nanocrystalline thin films grown by polymer-assisted chemical solution deposition

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Journal of Modern Transportation 2014年第1期22卷 50-54页

作者： Min Zhang Li Lv Zhantao Wei Xinsheng Yang Xin Zhang Key Laboratory of Magnetic Levitation Technologies and Maglev Trains Ministry of Education of Chinaand Superconductivity and New Energy R&D CenterSouthwest Jiaotong University

Perovskite-based materials can be widely used in the aerospace and transportation field. Perovskite man-ganese oxides La0.7Sr0.3MnO3 （LSMO） thin films were grown on LaAlO3 （100） and Si （100） single crystal sub-strates by the polymer-assisted chemical solution deposi-tion （PACSd） method. Electronic transport behavior, microstructure, and magnetoresistance （Mr） of LSMO thin films on different substrates were investigated. The resis-tance of LSMO films fabricated on LaAlO3 substrates is smaller than that on the Si substrates. The magnetic field reduces resistance of LSMO films both on Si and LAO in the wide temperature region, when the insulator-metal transition temperature shifts to higher temperature. The low-field magnetoresistance of LSMO films on Si in low temperature range at 1 T is larger than that of LSMO films on LAO. However, the Mr of LSMO film on LAO films at room-temperature is about 5.17%. The thin films are smooth and dense with uniform nanocrystal size grain. These results demonstrate that PACSd is an effective technique for producing high quality LSMO films, which is significant to improve the magnetic properties and the application of automotive sensor.

关键词： Polymer-assisted chemical solutiondeposition （PACSd） La0.7Sr0.3MnO3 （LSMO） thin films Transport properties and microstructure

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Effect of CuI on Charege Transfer and Photoconductive Properties of Sb2S3/TiO2 Heterostructure Nanotube Arrays

Effect of CuI on Charege Transfer and Photoconductive Proper...

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2015欧亚经济论坛-2015第五届国际纳米科技大会

作者： Feng Yang Jinfang Xi Li-Yong Gan Shuangwei Lu Wenli Ma Fanggong Cai Xiang Kan Yong Zhang Cuihua Cheng Yong Zhao Key Laboratory of Advanced Technology of Materials(Ministry of Education of China) Superconductivity and New Energy R&D CenterSouthwest Jiaotong University National Engineering Labortary for Superconducting Materials Western Superconducting Technologies Co.Ltd School of Materials Science and Engineering University of New South Wales

Charge transfer is crucial for the performance of a photoconductive *** photogenerated charge accumulation and separation is mandatory for photoconductive device design and further *** stacked and embedded heterostructure of Sb2S3/TiO2 nanotube arrays(NTAs) were fabricated by anodic oxidation associated with hydrothermal *** surface photovoltage spectroscopy and photoluminescence measurements were performed to explore how inorganic hole transport material CuI affects charge transfer and photoconductive properties of Sb2S3/TiO2 heterostructure *** results show that CuI acts as not only hole conducting and electron blocking but also light absorbing in the ultraviolet *** charge transfer processes exist in the CuI/Sb2S3/TiO2 heterostructure *** photoconductive performance of CuI/Sb2S3/TiO2 heterostructure NTAs is dramatically improved,up to 1-2 orders of magnitude larger than that of Sb2S3/Ti02 heterostructure NTAs under white light irradiation.

关键词： Effect of CuI on Charege Transfer and Photoconductive Properties of Sb2S3/TiO2 Heterostructure Nanotube Arrays TiO

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Preparation of Nb3Al superconductor by powder metallurgy and effect of mechanical alloying on the phase formation

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Journal of Modern Transportation 2014年第1期22卷 55-58页

作者： Zhao Liu Yongliang Chen Lupeng du Pingyuan Li Yajing Cui Xifeng Pan Guo Yan Key Laboratory of Magnetic Levitation Technologies and Maglev Trains Ministry of Education of Chinaand Superconductivity and New Energy R&D CenterSouthwest Jiaotong University Western Superconducting Technologies Co. Ltd.

Adoption of powder-in-tube method to fabricatesuperconducting wire can realize a large application ofNb3Al prepared by powder metallurgy. Powder metallurgywas used to synthesize Nb3Al under various heat-treatmentconditions, annealing temperature was varied from 700 to1,000 C and heating time was varied from 10 to 50 h.X-ray diffraction patterns reveal that a reaction between Nband Al took place and formed NbAl3 phase. Under currentheat-treatment conditions （annealing temperature wasvaried from 700 to 1,000 C and heating time was variedfrom 10 to 50 h）, NbAl3 was so stable that it did not furtherreact with the unreacted Nb and was not sensitive to theheat-treatment condition. By mechanical alloying, adoptionof high-energy ball milling significantly decreases particlesize and enhances surface free energy, which promotes theformation of Nb3Al phase. X-ray diffraction patternsindicate that relatively pure Nb3Al phase was obtainedunder the same heat-treatment condition. Energy-dispersiveX-ray analysis measurement demonstrates that theobtained samples were close to the right stoichiometry ofA15 structure Nb3Al.

关键词： Nb3Al Superconductivity Powdermetallurgy Mechanical alloying

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Guidelines for the use of flow cytometry and cell sorting in immunological studies

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EUrOPEAN JOUrNAL OF IMMUNOLOGY 2017年第10期47卷 1584-1797页

作者： Cossarizza, Andrea Chang, Hyun-dong radbruch, Andreas Akdis, Mubeccel Andrae, Immanuel Annunziato, Francesco Bacher, Petra Barnaba, Vincenzo Battistini, Luca Bauer, Wolfgang M. Baumgart, Sabine Becher, Burkhard Beisker, Wolfgang Berek, Claudia Blanco, Alfonso Borsellino, Giovanna Boulais, Philip E. Brinkman, ryan r. Buescher, Martin Busch, dirk H. Bushnell, Timothy P. Cao, Xuetao Cavani, Andrea Chattopadhyay, Pratip K. Cheng, Qingyu Chow, Sue Clerici, Mario Cooke, Anne Cosma, Antonio Cosmi, Lorenzo Cumano, Ana dang, Van duc davies, derek de Biasi, Sara del Zotto, Genny della Bella, Silvia dellabona, Paolo deniz, Gunnur dessing, Mark diefenbach, Andreas di Santo, James dieli, Francesco dolf, Andreas donnenberg, Vera S. doerner, Thomas Ehrhardt, Gotz r. A. Endl, Elmar Engel, Pablo Engelhardt, Britta Esser, Charlotte Everts, Bart dreher, Anita Falk, Christine S. Fehniger, Todd A. Filby, Andrew Fillatreau, Simon Follo, Marie Foerster, Irmgard Foster, John Foulds, Gemma A. Frenette, Paul S. Galbraith, david Garbi, Natalio dolores Garcia-Godoy, Maria Geginat, Jens Ghoreschi, Kamran Gibellini, Lara Goettlinger, Christoph Goodyear, Carl S. Gori, Andrea Grogan, Jane Gross, Mor Gruetzkau, Andreas Grummitt, daryl Hahn, Jonas Hammer, Quirin Hauser, Anja E. Haviland, david L. Hedley, david Herrera, Guadalupe Herrmann, Martin Hiepe, Falk Holland, Tristan Hombrink, Pleun Houston, Jessica P. Hoyer, Bimba F. Huang, Bo Hunter, Christopher A. Iannone, Anna Jaeck, Hans-Martin Javega, Beatriz Jonjic, Stipan Juelke, Kerstin Jung, Steffen Kaiser, Toralf Kalina, Tomas Keller, Baerbel Khan, Srijit Kienhoefer, deborah Kroneis, Thomas Kunkel, desiree Kurts, Christian Kvistborg, Pia Lannigan, Joanne Lantz, Olivier Larbi, Anis LeibundGut-Landmann, Salome Leipold, Michael d. Levings, Megan K. Litwin, Virginia Liu, Yanling Lohoff, Michael Lombardi, Giovanna Lopez, Lilly Lovett-racke, Amy Lubberts, Erik Ludewig, Burkhard Lugli, Enrico Maecker, Holden T. Martrus, Gloria Matarese, Giuseppe Maueroeder, Christian McGrath, Mairi McInnes, Iain Mei, H Univ Modena Dept Med & Surg Sci Children & Adults Modena Italy Reggio Emilia Sch Med Modena Italy Inst Leibniz Assoc Deutsch Rheuma Forschungszentrum DRFZ Berlin Germany Tech Univ Munich Inst Med Mikrobiol Immunol & Hyg Munich Germany Univ Florence Internal Med Florence Italy Charite Univ Med Berlin Berlin Germany Sapienza Univ Roma Dipartimento Med Interna & Specialita Med Via Regina Elena 324 I-00161 Rome Italy Fdn Cenci Bolognetti Ist Pasteur Italia Rome Italy Univ Dublin Trinity Coll Dublin Trinity Biomed Sci Inst Dublin Ireland Santa Lucia Fdn Neuroimmunol & Flow Cytometry Units Rome Italy Med Univ Vienna Dept Dermatol Div Immunol Allergy & Infect Dis Vienna Austria Univ Zurich Inst Expt Immunol Zurich Switzerland German Res Ctr Environm Hlth Helmholtz Zentrum Munchen Inst Mol Toxicol & Pharmacol Flow Cytometry Lab Neuherberg Germany Univ Coll Dublin UCD Conway Inst Flow Cytometry Core Technol Dublin Ireland Albert Einstein Coll Med Dept Cell Biol Bronx NY 10467 USA Ruth L & David S Gottesman Inst Stem Cell & Regen Bronx NY USA BC Canc Agcy Terry Fox Lab Vancouver BC Canada Univ British Columbia Dept Med Genet Vancouver BC Canada Miltenyi Biotec GmbH R&D Engn Biopyhs Bergisch Gladbach Germany Natl Ctr Infect Res DZIF Munich Germany Tech Univ Munich Inst Adv Study Focus Grp Clin Cell Proc & Purificat Munich Germany Univ Rochester Med Ctr Dept Pediat Rochester NY 14642 USA Univ Rochester Med Ctr Shared Resource Labs Rochester NY 14642 USA Zhejiang Univ Sch Med Inst Immunol Hangzhou 310058 Zhejiang Peoples R China Second Mil Med Univ Natl Key Lab Med Immunol Shanghai 200433 Peoples R China Second Mil Med Univ Inst Immunol Shanghai 200433 Peoples R China Chinese Acad Med Sci Dept Immunol Beijing 100005 Peoples R China Chinese Acad Med Sci Ctr Immunotherapy Inst Basic Med Sci Peking Union Med Coll Beijing 100005 Peoples R China NIHMP INMP Rome Italy Vaccine Res Ctr NIH Immunotechnol Sect Bethesda MD USA Charite

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Triptolide inhibits osteoclast formation, bone resorption, rANKL-mediated NF-κB activation and titanium particle-induced osteolysis in a mouse model

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MOLECULAr ANd CELLULAr ENdOCrINOLOGY 2015年第C期399卷 346-353页

作者： Huang, Jianbin Zhou, Lin Wu, Huafei Pavlos, Nathan Chim, Shek Man Liu, Qian Zhao, Jinmin Xue, Wei Tan, ren Xiang Ye, Jiming Xu, Jun Ang, Estabelle S. Feng, Haotian Tickner, Jennifer Xu, Jiake ding, Yue Sun Yat Sen Univ Mem Hosp Dept Orthopaed Guangzhou 510275 Guangdong Peoples R China Univ Western Australia Sch Pathol & Lab Med Perth WA 6009 Australia Univ Western Australia Sch Surg Ctr Orthopaed Res Perth WA 6009 Australia Guangxi Med Univ Affiliated Hosp 1 Dept Orthopaed Surg Res Ctr Regenerat Med Guangxi 530021 Peoples R China Jinan Univ Dept Biomed Engn Guangdong Higher Educ Inst Key Lab Biomat Guangzhou 510632 Guangdong Peoples R China Nanjing Univ Sch Med Inst Funct Biomol Nanjing 210093 Jiangsu Peoples R China RMIT Univ Hlth Innovat Res Inst Melbourne Vic 3083 Australia RMIT Univ Sch Hlth Sci Melbourne Vic 3083 Australia Sun Yat Sen Univ Sch Pharmaceut Sci Res Ctr Drug Discovery Guangzhou 510006 Guangdong Peoples R China Univ Western Australia Sch Dent Perth WA 6009 Australia Nestle R&D China Ltd Program Nutr & Bone & Joint Hlth Beijing 100095 Peoples R China

The rANKL-induced NF-kappa B signaling pathway is required for osteoclast formation and function. By screening for compounds that inhibit rANKL-induced NF-kappa B activation using a luciferase reporter gene assay in rAW264.7 cells, we identified triptolide (PG490), as a candidate compound targeting osteoclast differentiation and osteoclast-mediated osteolysis. Triptolide (PG490) is an active compound of the medicinal herb Tripterygium wilfordii Hook F (TWHF) or Lei Gong Teng with known anti-inflammatory properties. We found that triptolide inhibited osteoclastogenesis and bone resorption, as well as rANKL-induced NF-kappa B activities as monitored by luciferase reporter gene assays and the nuclear translocation of p65. In vivo studies showed that triptolide attenuates titanium-induced osteolysis and osteoclast formation in a mouse calvarial model. Considering that drugs which protect against localized bone loss are critically needed for the effective treatment of particle-induced osteolysis, our data suggest that triptolide might have therapeutic potential for the treatment of bone lytic diseases caused by prosthetic wear particles. (C) 2014 Elsevier Ireland Ltd. All rights reserved.

关键词： Triptolide Osteoclastogenesis rANKL NF-kappa B Osteolysis Titanium particle

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Transient Platinum Oxide Formation and Oxygen reduction on Carbon-Supported Platinum and Platinum-Cobalt Alloy Electrocatalysts

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JOUrNAL OF THE ELECTrOCHEMICAL SOCIETY 2014年第1期161卷 F10-F15页

作者： Huang, Yan Zhang, Junliang Kongkanand, Anusorn Wagner, Frederick T. Li, James C. M. Jorne, Jacob Univ Rochester Mat Sci Program Rochester NY 14627 USA GM Global R&D Electrochem Energy Res Lab Honeoye Falls NY 14472 USA Shanghai Jiao Tong Univ MOE Key Lab Power & Machinery Engn Inst Fuel Cells Shanghai 200240 Peoples R China

The catalytic activity of Pt and Pt alloys for oxygen reduction reaction (Orr) is affected by the formation of Pt oxides at high potentials. The transient Orr and oxide behaviors of two PEM fuel cell catalysts (46 wt% Pt/V and 30 wt% PtCo/HSC) were studied by chronoamperometry at fixed potentials. Both rotating disk electrodes (rdEs) and membrane electrode assembly (MEAs) of fuel cells were used to compare how the transient formation of oxides and its effects on Orr activity may differ between these two common testing environments. Similar trends of recoverable activity degradation were observed for the rdE and MEA tests. Higher oxide coverages and faster oxide growth rates were observed for the alloyed PtCo/HSC catalyst in comparison to the Pt/V catalyst. The alloy showed higher initial activity but faster degradation rates over the brief time scales of these experiments. results contradict the purely simple size effect as the explanation for the differences between the Pt and PtCo catalysts. We found that activity is not simply a function of oxide coverage, and is affected by additional mechanisms and conditions. (C) 2013 The Electrochemical Society.

关键词： dEGrAdATION rATE Coverage electrocatalysts oxides platinum oxides Catalyst activity METAL ALLOY Catalysts platinum Size effect fuel batteries Membrane electrode assembly Chronoamperometry

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Publisher Correction: Global estimates on the number of people blind or visually impaired by cataract: a meta-analysis from 2000 to 2020

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Eye (London, England) 2024年第11期38卷 2229-2231页

作者： Konrad Pesudovs Hugh r. Taylor Tabassom Sedighi rupert r. A. Bourne Shahina Pardhan Van Charles Lansingh John H. Kempen Ian Tapply Arthur G. Fernandes Maria Vittoria Cicinelli Alessandro Arrigo Nicolas Leveziel Serge resnikoff Seth Flaxman Mukkharram M. Bikbov Tasanee Braithwaite Alain Bron Ching-Yu Cheng Monte A. del Monte Joshua r. Ehrlich Leon B. Ellwein david Friedman João M. Furtado Gus Gazzard ronnie George M. Elizabeth Hartnett Jost B. Jonas rim Kahloun Moncef Khairallah rohit C. Khanna Janet Leasher Julie-Anne Little Vinay Nangia Michal Nowak Tunde Peto Pradeep ramulu Fotis Topouzis Mitiadis Tsilimbaris Ya Xing Wang Ningli Wang Paul Svitil Briant Theo Vos Katrin Burkart Kaleb Coberly Xiaochen dai Stephen S. Lim Tomislav Mestrovic Ali H. Mokdad Christopher J. L. Murray Jaimie d. Steinmetz Awoke Misganaw Yohannes Habtegiorgis Abate Mohammad Abdollahi Mozhan Abdollahi Ayele Mamo Abebe Olumide Abiodun richard Gyan Aboagye Woldu Aberhe Abrha Hasan Abualruz Hiwa Abubaker Ali Eman Abu-Gharbieh Salahdein Aburuz Tadele Girum Girum Adal Mesafint Molla Adane Isaac Yeboah Addo Qorinah Estiningtyas Sakilah Adnani Muhammad Sohail Afzal Muhammad Umair Shahin Aghamiri Bright Opoku Ahinkorah Aqeel Ahmad Sajjad Ahmad Ali Ahmadi Siamak Sabour Ayman Ahmed Haroon Ahmed Ahmad Samir Alfaar Abid Ali Syed Shujait Shujait Ali Awais Altaf Hubert Amu Emmanuel Manu Sofia Androudi rodrigo Anguita Abhishek Anil rimple Jeet Kaur Muhammad Aaqib Shamim Saeid Anvari Anayochukwu Edward Anyasodor Francis Appiah Jalal Arabloo Haleh Ayatollahi Mosab Arafat damelash Areda reza Arefnezhad Brhane Berhe Aregawi Akeza Awealom Asgedom Tahira Ashraf Seyyed Shamsadin Athari Bantalem Tilaye Tilaye Atinafu Birhan Tsegaw Taye Maha Moh’d Wahbi Atout Alok Atreya Ahmed Y. Azzam Hassan Babamohamadi Sara Bagherieh Yogesh Bahurupi Atif Amin Baig Shumaila Nargus Biswajit Banik Mainak Bardhan Saurav Basu Kavita Batra Nebiyou Simegnew Bayileyegn Fatemeh Bazvand Addisu Shunu Beyene Awoke Masrie Asrat derese devidas S. Bhagat Akshaya Srikanth Bhagavathula Pankaj Bh Medicine & Health University of New South Wales Sydney NSW Australia School of Optometry and Vision Science University of New South Wales Sydney NSW Australia School of Population and Global Health University of Melbourne Carlton VIC Australia Vision and Eye Research Institute Anglia Ruskin University Cambridge UK HelpMeSee Instituto Mexicano de Oftalmologia Santiago de Querétaro Mexico University of Miami Gables FL USA University of Utah Salt Lake City UT USA Chief Medical Office HelpMeSee New York NY USA Mexican Institute of Ophthalmology Queretaro Mexico Department of Ophthalmology Massachusetts Eye and Ear/Shepens Eye Research Institute/Harvard Medical School Boston MA USA Eye Unit MyungSung Christian Medical Center (MCM) Comprehensive Specialized Hospital and MyungSun Medical College Addis Ababa Ethiopia Department of Ophthalmology Addis Ababa University Addis Ababa Ethiopia Sight for Souls Bellevue WA USA Department of Ophthalmology Harvard University Boston MA USA Eye Unit MyungSung Medical College Addis Ababa Ethiopia Addenbrooke’s Hospital Cambridge UK Department of Ophthalmology Cambridge University Hospitals Cambridge UK Federal University of Sao Paolo Sao Paolo SP Brazil University of Calgary Calgary AB Canada Department of Ophthalmology and Visual Sciences Federal University of São Paulo Sao Paulo Brazil School of Medicine Vita-Salute San Raffaele University Milan Italy Department of Ophthalmology IRCCS San Raffaele Scientific Institute Milan Italy Department of Ophthalmology San Raffaele Scientific Institute Milano Italy IRCCS San Raffaele Scientific Institute Vita-Salute University Milan Italy Scientific Institute San Raffaele Hospital Vita-Salute University Milan Italy University of Poitiers Poitiers France CHU de Poitiers Poitiers France Ophthalmology Department CHU de Poitiers (Poitiers University Hospital) Poitiers France Unité 1084 National Institute of Health and Medical Research (INSERM) Poitiers France

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Structural model for the first wall W-based material in ITEr project

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Journal of Modern Transportation 2014年第4期22卷 261-265页

作者： dehua Xu Xinkui He Shuiquan deng Yong Zhao Key Laboratory of Magnetic Levitation Technologies and Maglev Trains Ministry of Education of China and Superconductivity and New Energy R&D Center Southwest Jiaotong University School of Physical Science and Technology Southwest Jiaotong University

The preparation, characterization, and test of the first wall materials designed to be used in the fusion reactor have remained challenging problems in the material science. This work uses the firstprinciples method as implemented in the CASTEP package to study the influ ences of the doped titanium carbide on the structural sta bility of the WTiC material. The calculated total energy and enthalpy have been used as criteria to judge the structural models built with consideration of symmetry. Our simulation indicates that the doped TiC tends to form its own domain up to the investigated nanoscale, which implies a possible phase separation. This result reveals the intrinsic reason for the composite nature of the WTiC material and provides an explanation for the experimen tally observed phase separation at the nanoscale. Our approach also sheds a light on explaining the enhancing effects of doped components on the durability, reliability, corrosion resistance, etc., in many special steels.

关键词： Tungsten-based material - First wall materialFirst principles

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The influence of Laval nozzle throat size on supersonic molecular beam injection

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Journal of Modern Transportation 2014年第2期22卷 118-121页

作者： Xinkui He Xianfu Feng Mingmin Zhong Fujun Gou Shuiquan deng Yong Zhao Key Laboratory of Magnetic Levitation Technologies and Maglev Trains Ministry of Education of China Superconductivity and New Energy R&D Center Southwest Jiao Tong University Institute of Nuclear Science and Technology Sichuan University

In this study, finite element analysis （FEA） has been used to investigate the effects of different Laval nozzle throat sizes on supersonic molecular beam. The simulations indicate the Mach numbers of the molecular stream peak at different positions along the center axis of the beam, which correspond to local minimums of the molecular densities. With the increase of the throat diameter, the first peak of the Mach number increases first and then decreases, while that of the molecular number density increases gradually. Moreover, both first peaks shift progressively away from the throat. At the last part, we discuss the possible applications of our FEA approach to solve some crucial problems met in modern transportations.

关键词： Nuclear fusion Molecular beam injection Mach number Laval nozzle throat size

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