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Radiation Effect on YBa_(2)Cu_(3)O_(7-δ) by 35 MeV Proton Irradiation

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Chinese Physics Letters 1991年第7期8卷 368-371页

作者： YU Jinnan GAO Zhongcai wang yuzhu CHEN Yiren SHI Yuemei Chinese Institute of Atomic Energy Beijing 102413

The specimens of YBa_(2)Cu_(3)O_(7-δ)are irradiated by 35 MeV proton at 70K,the sero-resistance temperature TC0 is increased with the proton fluence within the range(2.21 × 10^(13)-1.77 × 10^(14)p/cm^(2)).Tc0 is in... 详细信息

关键词： irradiated critical

Coupling methods of global climate models and regional climate models

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High Technology Letters 2017年第1期23卷 90-95页

作者： wang yuzhu Jiang Jinrong He Juanxiong Institute of Remote Sensing and Digital Earth Chinese Academy of SciencesBeijing 100094P.R.China Computer Network Information Center Chinese Academy of SciencesBeijing 100190P.R.China Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029P.R.China

The future climate dynamical downscaling method is that output of general circulation models( GCMs) is employed to provide initial conditions,lateral boundary conditions,sea surface temperatures,and initial land surface conditions to regional climate models( RCMs). There are two methods of downscaling: offline coupling and online coupling. The two kinds of coupling methods are described in detail by coupling the Weather Research and Forecasting model( WRF) with the Institute of Atmospheric Physics of Chinese Academy of Sciences Atmospheric General Circulation Model Version 4. 0( IAP AGCM4. 0) in the study. And the extreme precipitation event over Beijing on July 212012 is simulated by using the two coupling methods. Results show that online coupling method is of great value in improving the model simulation. Furthermore,the data exchange frequency of online coupling has some effect on simulation result.

关键词： coupling method online coupling climate model performance evaluation tor-rential rainfall

Security Analysis of Discrete Logarithm Based Cryptosystems

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Wuhan University Journal of Natural Sciences 2006年第6期11卷 1715-1717页

作者： wang yuzhu LIAO Xiaofeng School of Computer Chongqing University Chongqing 400030 China

Discrete logarithm based cryptosysterns have subtle problems that make the schemes vulnerable. This paper gives a comprehensive listing of security issues in the systems and analyzes three classes of attacks which are based on mathematical structure of the group which is used in the schemes, the disclosed information of the subgroup and implementation details respectively. The analysis will, in turn, allow us to motivate protocol design and implementation decisions.

关键词： discrete logarithm security analysis prime order subgroup secure implementation

Propofol Attenuates a-Synuclein Aggregation and Neuronal Damage in a Mouse Model of Ischemic Stroke

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Neuroscience Bulletin 2020年第3期36卷 289-298页

作者： yuzhu wang Dan Tian Changwei Wei Victoria Cui Huan wang Yanbing Zhu Anshi Wu Yun Yue Department of Anesthesiology Beijing Chaoyang HospitalCapital Medical UniversityBeijing 100020China Experimental and Translational Research Center Beijing Friendship HospitalCapital Medical UniversityBeijing 100050China Washington University School of Medicine St.LouisMIUSA

a-Synuclein is a soluble monomer abundant in the central nervous system. Aggregates of a-synuclein,consisting of higher-level oligomers and insoluble fibrils,have been observed in many chronic neurological diseases and are implicated in neurotoxicity and neurodegeneration.a-Synuclein has recently been shown to aggregate following acute ischemic stroke, exacerbating neuronal *** is an intravenous anesthetic that is commonly used during intravascular embolectomy following acute ischemic stroke. While propofol has demonstrated neuroprotective properties following brain injury, the mechanism of protection in the setting of ischemic stroke is unclear. In this study, propofol administration significantly reduced the neurotoxic aggregation of a-synuclein, decreased the infarct area, and attenuated the neurological deficits after ischemic stroke in a mouse model. We then demonstrated that the propofol-induced reduction of a-synuclein aggregation was associated with increased mammalian target of rapamycin/ribosomal protein S6 kinase beta-1 signaling pathway activity and reduction of the excessive autophagy occurring after acute ischemic stroke.

关键词： Propofol a-Synuclein Autophagy Stroke Neuroprotection

Global characterization of OsPIP aquaporins reveals that the H_(2)O_(2)transporter OsPIP2;6 increases resistance to rice blast

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The Crop Journal 2024年第1期12卷 102-109页

作者： Gousi Li Jingluan Han Chen Yi Hao Luo yuzhu wang Fengpin wang Xiaoyu wang Letian Chen Yaling Zhang State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources College of Life SciencesSouth China Agricultural UniversityGuangzhou 510642GuangdongChina Guangdong Laboratory for Lingnan Modern Agriculture Guangzhou 510642GuangdongChina National Key Laboratory of Plant Molecular Genetics Shanghai Center for Plant Stress BiologyCAS Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghai 200032China

Plasma membrane intrinsic proteins(PIPs)are conserved plant aquaporins that transport small molecules across the plasma membrane to trigger instant stress responses and maintain cellular homeostasis under biotic and abiotic *** elucidate their roles in plant immunity to pathogen attack,we characterized the expression patterns,subcellular localizations,and H_(2)O_(2)-transport ability of 11 OsPIPs in rice(Oryza sativa),and identified OsPIP2;6 as necessary for rice disease ***2;6 resides on the plasma membrane and facilitates cytoplasmic import of the immune signaling molecule H_(2)O_(2).Knockout of OsPIP2;6 increases rice susceptibility to Magnaporthe oryzae,indicating a positive function in plant ***2;6 interacts with OsPIP2;2,which has been reported to increase rice resistance to pathogens via H_(2)O_(2)*** findings suggest that OsPIP2;6 cooperates with OsPIP2;2 as a defense signal transporter complex during plant–pathogen interaction.

关键词： Aquaporin Plant immunity Rice blast H_(2)O_(2)transport

A Solution to the Anonymity of the Mobile Subscriber

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Wuhan University Journal of Natural Sciences 2012年第3期17卷 229-232页

作者： wang yuzhu LI Shunqin JU Yarong Department of Logistical Information Engineering Logistical Engineering UniversityChongqing 401311China

The user anonymity mechanism provided in GSM and UMTS network is analyzed,and a new approach to solve the anonymity of mobile subscriber is proposed in this *** the ciphering algorithm with a dynamic key and a static key,the method allows mobile subscribers to connect network with user anonymity,and it can be seamlessly integrated with the existing authentication *** analyses reveal that the proposed scheme can provide the integrity protection of messages,prevent the replay attacks,and be implemented easily.

关键词： mobile communications user anonymity user untraceability replay attacks

Transparency Induced by Two-Photon Coherence in the V-Shaped Three-Level System

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Chinese Physics Letters 1994年第7期11卷 420-423页

作者： XU Gu wang yuzhu YE Chao ZHOU Shanyu ZHAO Jiaming LIU Yashu Joint Laboratory for Quantum Optics Shanghai Institute of Optics and Fine MechanicsAcademia SinicaShanghai 201800

We have investigated th steady-state behavior of a V-shape three-level system submitted to the radiative field and to the relaxation *** coherence induced by simultaneous two-photon transition leads to a strong decrea... 详细信息

关键词： spectrum process absorption

Laser Cooling and Deceleration of Neutral Atoms by Red-Shifted Diffuse Light

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Chinese Physics Letters 1994年第9期11卷 541-544页

作者： CHEN Hongxin CAI Weiquan LIU Liang SHU Wei LI Fosheng wang yuzhu Joint Laboratory for Quantum Optics Shanghai Institute of Optics and Fine MechanicsAcademia SinicaShanghai 201800

We report a cooling and deceleration experiment of a thermal beam by using a nearly resonant red-shifted diffuse light in an optical integral sphere *** using of this red-shifted diffuse light,the velocity of a part of thermal sodium atoms is cooled to 380m/s and the velocity width of cooled atoms is about 18m/*** mechanism of this kind of laser cooling and the experimental results are discussed.

关键词： cavity. shifted thermal

Typhoon storm surge ensemble forecast based on GPU technique

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Acta Oceanologica Sinica 2020年第5期39卷 77-86页

作者： Qiuxing Liu Jinrong Jiang Fujiang Yu Changkuan Zhang Jianxi Dong Xiaojiang Song yuzhu wang College of Harbor Coastal and Offshore EngineeringHohai UniversityNanjing 210098China National Marine Environmental Forecasting Center Beijing 100081China Computer Network Information Center Chinese Academy of SciencesBeijing 100190China School of Information Engineering China University of GeosciencesBeijing 100083China

The accuracy of typhoon forecasts plays an important role in the prediction of storm *** uncertainty of a typhoon’s intensity and track means it is necessary to use an ensemble model to predict typhoon storm surges.A hydrodynamic model,which is operational at the National Marine Environmental Forecasting Center,is applied to conduct surge simulations for South China coastal areas using the best track data with parametric wind and pressure *** results agree well with tidal gauge *** improve the calculation efficiency,the hydrodynamic model is modified using CUDA *** calculation results are almost the same as those from the original model,but the calculation time is reduced by more than 99%.A total of 150 typhoon cases are generated by combining 50 typhoon tracks from the European Centre for Medium-Range Weather Forecasts with three possible typhoon intensity *** surge ensembles are computed by the improved hydrodynamic *** on the simulated storm surges for the different typhoon cases,ensemble and probability forecast products can be *** mean ensemble results and probability forecast products are shown to agree well with the observed storm surge caused by Typhoon *** improved model is highly suitable for ensemble numerical forecasts,providing better forecast products for decision-making,and can be easily implemented to run on regular workstations.

关键词： typhoon storm surge ensemble forecast probability forecast CUDA Fortran