检索结果-南通市图书馆

Experimental validation of dynamic polarization compensation in ground-satellite quantum key distribution

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2014年第7期57卷 1233-1237页

作者： WANG ChaoZe GUO Hui REN JiGang CAO Yuan peng ChengZhi LIU WeiYue College of Information Science and Engineering Ningbo University Hefei National Laboratory for Physical Science at the Microscale Modern Physics Department University of Science and Technology of China

Ground-satellite quantum key distribution(QKD)is a feasible way to implement global-scale quantum *** we propose an approach to dynamically compensate the polarization of the photons when passing through the optical telescope used in ground-satellite *** results experimentally demonstrate that the fidelity of any polarization state after dynamic compensation can be achieved by more than 99.5%,which fulfills the requirements of ground-satellite QKD.

关键词： satellite-ground quantum key distribution polarization-encoding polarization maintaining optical system

Nonlocal nonreciprocal optomechanical circulator

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2022年第5期31卷 325-333页

作者： Ji-Hui Zheng Rui peng Jiong Cheng Jing An Wen-Zhao Zhang School of Mathematical Sciences Guizhou Normal UniversityGuiyang 550025China School of Physical Science and Technology Ningbo UniversityNingbo 315211China School of Physics Dalian University of TechnologyDalian 116024China

A nonlocal circulator protocol is proposed in a hybrid optomechanical *** analogy with quantum communication,using the input-output relationship,we establish the quantum channel between two optical modes with *** three-body nonlocal interaction between the cavity and the two oscillators is obtained by eliminating the optomechanical cavity mode and verifying the Bell-CHSH inequality of continuous *** introducing the phase accumulation between cyclic interactions,the unidirectional transmission of quantum state between the optical mode and two mechanical modes is *** results show that nonreciprocal transmissions are achieved as long as the accumulated phase reaches a certain *** addition,the effective interaction parameters in our system are amplified,which reduces the difficulty of the implementation of our *** research can provide potential applications for nonlocal manipulation and transmission control of quantum platforms.

关键词： optomechanics nonlocality nonreciprocity

Split liver transplantation: a reliable approach to expand donor pool

在线全文

学校读者我要写书评

暂无评论

Hepatobiliary & Pancreatic Diseases International 2005年第3期4卷 339-344页

作者： Ji-Qi Yan, Thomas Becker, Cheng-hong peng, hong-Wei Li and Juergen Klempnauer Department of Surgery, Ruijin Hospital Affiliated to Shanghai Second Medical University, Shanghai 200025, China ( Yan JQ, peng CH and Li HW) Department of Abdominal and Transplant Surgery, Medical School of Hannover, Carl-Neuberg-Str. 1 , 30625 Hannover, Germany Department of Surgery Ruijin Hospital Affiliated to Shanghai Second Medical University Shanghai 200025 China. jiqiyan@***

Orthotopic liver transplantation as a successful treatment of end-stage liver disease is hampered by a persistent lack of cadaveric organs. Split liver transplantation, which was first successfully performed by Medical School of Hannover in 1988, has become a mature surgical technique to expand the donor pool. Between 1993 and 1999, split liver transplantation activities have increased in Europe from 1. 2% to 10. 4% in all performed liver transplantations. Current data have strongly supported that the survival rate of patients after split liver transplantation is not significantly different from that of patients after whole-size orthotopic liver transplantation. The most important step of donor graft selection is surgeon' s observation judged by the experience of individual transplant center. The paper aims to provide the guideline of donor selection, hepatic graft splitting, and recipient management as well. DATA SOURCES: Medical School of Hannover has accumulated plentiful experience of split liver transplantation for more than 10 cases ever since 1998. Besides that, we also reviewed a variety of literatures from other famous European and American centers specialized in this field for many years. RESULTS:According to our experience combined with the view points of others, the donor should meet the following criteria as well: (1) age less than 50 years; (2) hemodynamics stable; (3) ICU less than 5 days; (4) Na less than 170 mmol/L or better if less than 150 mmol/L. In 1996 and 1997, the Hamburg group and the UCLA group separately introduced a breakthrough technique performing split liver transplantation in situ. Evidently, the in situ technique has been limited by prolonged time of donor organ procurement , coordination with other organ procurement teams, and even extra burden on donor hospital. Some groups, therefore, have restored the ex situ or bench splitting technique , and fortunately the transplant outcomes of the ex situ technique are equivalent to those of

关键词： donor liver split transplantation

A complete sequence and comparative analysis of a SARS-associated virus(Isolate BJ01)

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 2003年第10期48卷 941-948页

作者： QIN E'de ZHU Qingyu YU Man FAN Baochang CHANG Guohui SI Bingyin YANG Bao peng Wenming JIANG Tao LIU Bohua DENG Yongqiang LIU hong ZHANG Yu WANG Cui LI Yuquan GAN Yonghua LI Xiaoyu L Fushuang TAN Gang CAO Wuchun YANG Ruifu WANG Jian LI Wei XU Zuyuan LI Yan WU Qingfa LIN Wei CHEN Weijun TANG Lin DENG Yajun HAN Yujun LI Changfeng LEI Meng LI Guoqing LI Wenjie L hong SHI Jianping TONG Zongzhong ZHANG Feng LI Songgang LIU Bin LIU Siqi DONG Wei WANG Jun Gane K-S wong YU Jun YANG Huanming Institute of Microbiology and Epidemiology Chinese Academy of Military Medical Sciences Beijing 100071 China Beijing Genomics Institute Chinese Academy of Sciences Beijing 101300 National Center for Genome Information Beijing 101300 China

The genome sequence of the Severe Acute Respiratory Syndrome (SARS)-associated virus provides essential information for the identification of pathogen(s), exploration of etiology and evolution, interpretation of transmission and pathogenesis, development of diagnostics, prevention by future vaccination, and treatment by developing new drugs. We report the complete genome sequence and comparative analysis of an isolate (BJ01) of the coronavirus that has been recognized as a pathogen for SARS. The genome is 29725 nt in size and has 11 ORFs (Open Reading Frames). It is composed of a stable region encoding an RNA-dependent RNA polymerase (composed of 2 ORFs) and a variable region representing 4 CDSs (coding sequences) for viral structural genes (the S, E, M, N proteins) and 5 PUPs (putative uncharacterized proteins). Its gene order is identical to that of other known coronaviruses. The sequence alignment with all known RNA viruses places this virus as a member in the family of Coronaviridae. Thirty putative substitutions have been identified by comparative analysis of the 5 SARS- associated virus genome sequences in GenBank. Fifteen of them lead to possible amino acid changes (non-synonymous mutations) in the proteins. Three amino acid changes, with predicted alteration of physical and chemical features, have been detected in the S protein that is postulated to beinvolved in the immunoreactions between the virus and its host. Two amino acid changes have been detected in the Mprotein, which could be related to viral envelope formation. Phylogenetic analysis suggests the possibility of non-human origin of the SARS-associated viruses but provides noevidence that they are man-made. Further efforts should focus on identifying the etiology of the SARS-associated virus and ruling out conclusively the existence of otherpossible SARS-related pathogen(s).

关键词：比较分析 SARS 非典型肺炎冠状病毒病因学发病机理诊断学疫苗

High‑accuracy measurement of Compton scattering in germanium for dark matter searches

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2022年第12期33卷 75-87页

作者： Hai‑Tao Jia Shin‑Ted Lin Shu‑Kui Liu Hsin‑Chang Chi Muhammed Deniz Chang‑Hao Fang peng Gu Xi Jiang Yi‑Ke Shu Qian‑Yun Li Yu Liu Ren‑Ming‑Jie Li Chen‑Kai Qiao Chang‑Jian Tang Henry Tsz‑King wong Hao‑Yang Xing Li‑Tao Yang Qian Yue Yu‑Lu Yan Kang‑Kang Zhao Jing‑Jun Zhu College of Physics Sichuan University610065 ChengduChina Department of Physics National Dong Hwa University97401 ShoufengHualienChina Department of Physics Dokuz Eylül University35160 BucaİzmirTurkey Institute of Physics Academia Sinica11529 TaipeiChina Key Laboratory of Particle and Radiation Imaging(Ministry of Education)and Department of Engineering Physics Tsinghua University100084 BeijingChina Institute of Nuclear Science and Technology Sichuan University610065 ChengduChina

Compton scattering with bound electrons contributes to a significant atomic effect in low-momentum transfer,yielding background structures in direct light dark matter searches as well as low-energy rare event *** report the measurement of Compton scattering in low-momentum transfer by implementing a 10-g germanium detector bombarded by a^(137)Cs source with a radioactivity of 8.7 mCi and a scatter photon captured by a cylindrical NaI(Tl)detector.A fully relativistic impulse approximation combined with multi-configuration Dirac–Fock wavefunctions was evaluated,and the scattering function of Geant4 software was replaced by our calculation *** measurements show that the Livermore model with the modified scattering function in Geant4 is in good agreement with the experimental *** is also revealed that atomic many-body effects significantly influence Compton scattering for low-momentum transfer(sub-keV energy transfer).

关键词： Compton scattering experiment Germanium detector Atomic many-body effects Geant4 Dark matter

Bioinspired Adaptive,Elastic,and Conductive Graphene Structured Thin-Films Achieving High-Efficiency Underwater Detection and Vibration Perception

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2022年第4期14卷 129-141页

作者： Qiling Wang peng Xiao Wei Zhou Yun Liang Guangqiang Yin Qiu Yang Shiao-Wei Kuo Tao Chen Key Laboratory of Marine Materials and Related Technologies Zhejiang Key Laboratory of Marine Materials and Protective TechnologiesNingbo Institute of Materials Technology and EngineeringChinese Academy of SciencesZhongguan West Road 1219Ningbo 315201People’s Republic of China School of Chemical Sciences University of Chinese Academy of Sciences19A Yuquan RoadBeijing 100049People’s Republic of China Ningbo New Material Testing and Evaluation Center Co. LtdNingbo 315000People’s Republic of China Department of Material and Optoelectronic Science Center of Crystal ResearchNational Sun Yat-Sen UniversityKaohsiung 804TaiwanPeople’s Republic of China

Underwater exploration has been an attractive topic for understanding the very nature of the lakes and even deep *** recent years,extensive efforts have been devoted to developing functional materials and their integrated devices for underwater information ***,there still remains a great challenge for water depth detection and vibration monitoring in a high-efficient,controllable,and scalable *** by the lateral line of fish that can sensitively sense the water depth and environmental stimuli,an ultrathin,elastic,and adaptive underwater sensor based on Ecoflex matrix with embedded assembled graphene sheets is *** graphene structured thin film is endowed with favourable adaptive and morphable features,which can conformally adhere to the structural surface and transform to a bulged state driven by water *** to the introduction of the graphene-based layer,the integrated sensing system can actively detect the water depth with a wide range of 0.3-1.8 ***,similar to the fish,the mechanical stimuli from land(***,stomping)and water(*** blowing,raining,fishing)can also be sensitively captured in real *** graphene structured thin-film system is expected to demonstrate significant potentials in underwater monitoring,communication,and risk avoidance.

关键词： Janus film Water depth detection Vibration perception

Influence of process parameters on interracial tensile strength of crosswedge rolling of 42CrMo/Q235 laminated shafts

在线全文

学校读者我要写书评

暂无评论

Journal of Iron and Steel Research International 2018年第10期25卷 1003-1009页

作者： Wen-fei peng Chao Yan Xiao Zhang Xue-dao Shu Guang-xing Huang Dong-ming Xu Zhejiang Provincial Key Lab of Part Rolling Technology Ningbo University Ningbo 315211 Zhejiang China Faculty of Mechanical Engineering and Mechanics NingboUniversity Ningbo 315211 Zhejiang China

Through rolling experiments and interfacial tensile strength tests of cross-wedge rolled laminated shafts of 42CrMo/Q235 composites, the influence of process parameters, including forming angle, spreading angle, area reduction, rolling temperature and core material diameter on the interfacial shear strength was analyzed. The results show that the sequence of process parameters in order of greatest influence on interfacial tensile strength was rolling temperature, area reduction, core material diameter, forming angle and spreading angle. At the interface of the combined materials, tensile strength decreased as forming angle and spreading angle increased, whereas the tensile strength first increased and then decreased as area reduction, rolling temperature and core material diameter increased.

关键词： Laminated shaft Process parameter Interfacial tensile strength Cross-wedge rolling

Identification of TAZ as the essential molecular switch in orchestrating SCLC phenotypic transition and metastasis

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

National Science Review 2022年第7期9卷 17-31页

作者： Yujuan Jin Qiqi Zhao Weikang Zhu Yan Feng Tian Xiao peng Zhang Liyan Jiang Yingyong Hou Chenchen Guo Hsinyi Huang Yabin Chen Xinyuan Tong Jiayu Cao Fei Li Xueliang Zhu Jun Qin Dong Gao Xin-Yuan Liu Hua Zhang Luonan Chen Roman K.Thomas Kwok-Kin wong Lei Zhang Yong Wang Liang Hu hongbin Ji State Key Laboratory of Cell Biology Chinese Academy of Sciences Shanghai Institute of Biochemistry and Cell Biology Chinese Academy of Sciences Center for Excellence in Molecular Cell Science Chinese Academy of Sciences Center for Excellence in Mathematical Sciences National Center for Mathematics and Interdisciplinary Sciences Key Laboratory of ManagementDecision and Information SystemHua Loo-Keng Center for Mathematical Sciences Academy of Mathematics and Systems ScienceChinese Academy of Sciences Shenzhen Key Laboratory of Translational Medicine of Tumor Department of Cell Biology and Genetics Shenzhen University Health Sciences Center Shanghai Pulmonary Hospital Tongji University Shanghai Chest Hospital Shanghai Jiaotong University Zhongshan Hospital Fudan University Department of Pathology School of Basic Medical Sciences Fudan University School of Life Science and Technology Shanghai Tech University CAS Key Laboratory of Tissue Microenvironment and Tumor CAS Center for Excellence in Molecular Cell Science Shanghai Institute of Nutrition and Health SciencesChinese Academy of Sciences Laura and Isaac Perlmutter Cancer Center New York University Langone Medical Center School of Life Science Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Department of Translational Genomics Center of Integrated Oncology Cologne-BonnMedical FacultyUniversity of Cologne Department of Pathology University Hospital Cologne

Small-cell lung cancer(SCLC) is a recalcitrant cancer characterized by high ***,the exact cell type contributing to metastasis remains *** a Rb1L/L/Trp53L/Lmouse model,we identify the NCAMhiCD44lo/-subpopulation as the SCLC metastasizing cell(SMC),which is progressively transitioned from the non-metastasizing NCAMloCD44hicell(non-SMC).Integrative chromatin accessibility and gene expression profiling studies reveal the important role of the SWI/SNF complex,and knockout of its central component,Brgl,significantly inhibits such phenotypic transition and ***,TAZ is silenced by the SWI/SNF complex during SCLC malignant progression,and its knockdown promotes SMC transition and ***,ectopic TAZ expression reversely drives SMC-to-non-SMC transition and alleviates ***-cell RNA-se quencing analyses identify SMC as the dominant subpopulation in human SCLC metastasis,and immunostaining data show a positive correlation between TAZ and patient *** data uncover high SCLC plasticity and identify TAZ as the key mole cular switch in orchestrating SCLC phenotypic transition and metastasis.

关键词： small cell lung cancer SWI/SNF complex TAZ phenotypic transition metastasis

Supramolecular fabrication of hyperbranched polyethyleneimine toward nanofiltration membrane for efficient wastewater purification

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

SusMat 2021年第4期1卷 558-568页

作者： Junyuan Xia Jincui Gu peng Xiao Chang Zhang Luke Yan Tao Chen Key Laboratory of Marine Materials and Related Technologies Zhejiang Key Laboratory of Marine Materials and Protective TechnologiesNingbo Institute of Material Technology and EngineeringChinese Academy of ScienceNingboChina School of Chemical Sciences University of Chinese Academy of SciencesBeijingChina Polymer Materials&Engineering Department School of Materials Science&EngineeringChang’an UniversityXi’anChina

Nanofiltration technology has opened an efficient pathway to addressing the grand issue of wastewater ***(PEI),as a hydrophilic polymer,is a promising material to manufacture separation membranes owing to its ***,we prepared a hyperbranched PEI-based separation mem-brane through the supramolecular hydrogen bond interaction for wastewater *** amino groups in the PEI molecule were partially oxidized to the nitro groups with sodium hypochlorite(NaClO).Moreover,the PEI molecu-lar chains can be regulated from the hyperbranched state to the internal nucle-ation *** dynamics simulation results further indicated the strong hydrogen bonds among the oxidized PEI(O-PEI)molecular chains and the decreased gyration radius of the O-PEI molecule due to the formation of the nitro *** addition,the wettability and zeta potential of O-PEI membranes can be controlled by adjusting the molecular weight and oxidation degree of the PEI *** the collective effect of size screening and charge repulsion,the O-PEI separation membrane displayed a wide range of purification capabilities for contaminations,such as dye molecules and *** work may offer a new strategy to fabricate hyperbranched O-PEI membranes for wastewater purifica-tion.

关键词： hyperbranched PEI nanofiltration membrane supramolecular hydrogen bond wastewater purification