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Acta Oceanologica Sinica 2007年第3期26卷 160-166页

作者： WANG sheng＇ an long Xiaomin zhang Keben CHEN Junchang zhang Wenjing CAI Shuqun South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou 510301 China Department of Mechanics Sun Yat-sen Universtity Guangzhou 510275 China

Multi-parameter hydrological gauge is an instrument developed by the South China Sea Institute of Oceanology, the Chinese Academy of Sciences to make simultaneous observation of current, wave, tide, water temperature and conductivity. By using the well-known ＂PUV method＂, the directional wave spectrum can be calculated and the dominant wave direction is then obtained. The comparison of the dominant wave directions derived from the measurements using both the multi-parameter hydrological gauge and the MARK Ⅱ ＂Wave-Rider＂ directional buoy shows that the dominant wave directions derived from the two kinds of measurements are in good agreement.

关键词： directional wave spectrum dominant wave direction PUV method

Enhancement of Mechanical Properties of Natural Rubber with Maleic Anhydride Grafted Liquid Polybutadiene Functionalized Graphene Oxide

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Chinese Journal of Polymer Science 2015年第7期33卷 1058-1068页

作者： long-mei Wu 廖双泉 sheng-jun zhang Xiao-ying Bai Xue Hou College of Agriculture Hainan University College of Materials and Chemical Engineering Hainan University

An effective procedure has been developed to synthesize the functionalized graphene oxide grafted by maleic anhydride grafted liquid polybutadiene（MLPB-GO）. Fourier transform spectroscopy and X-ray photoelectron spectroscopy indicate the successful functionalization of GO. The NR/MLPB-GO composites were then prepared by the co-coagulation process. The results show that the mechanical properties of NR/MLPB-GO composites are obviously superior to those of NR/GO composites and neat NR. Compared with neat NR, the tensile strength, modulus at 300% strain and tear strength of NR composite containing 2.12 phr MLPB-GO are significantly increased by 40.5%, 109.1% and 85.0%, respectively. Dynamic mechanical analysis results show that 84% increase in storage modulus and 2.9 K enhancement in the glass transition temperature of the composite have been achieved with the incorporation of 2.12 phr MLPB-GO into NR. The good dispersion of GO and the strong interface interaction in the composites are responsible for the unprecedented reinforcing efficiency of MLPB-GO towards NR.

关键词： Enhancement Maleic anhydride-grafted liquid polybutadiene Graphene oxide Composites Mechanical properties

Induced Subgraphs with Large Degrees at End-vertices for Hamiltonicity of Claw-free Graphs

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Acta Mathematica Sinica,English Series 2016年第7期32卷 845-855页

作者： Roman CADA Bin long LI Bo NING sheng Gui zhang Department of Mathematics University of West Bohemia Centre of Excellence ITI - Institute for Theoretical Computer Science Charles University European Centre of Excellence NTIS - New Technologies for the Information Society P.O. Box 314 306 14 Pilsen Czech Republic Department of Applied Mathematics Northwestern Polytechnical University Xi'an 710072 P. R. China Center for Applied Mathematics Tianjin University Tianjin 300072 P. R. China

A graph is called claw-free if it contains no induced subgrapn lsomorpmc to K1,3. Matthews and Sumner proved that a 2-connected claw-free graph G is Hamiltonian if every vertex of it has degree at least （[V（G）I - 2）/3. At the workshop CSzC （Novy Smokovec, 1993）, Broersma conjectured the degree condition of this result can be restricted only to end-vertices of induced copies of N （the graph obtained from a triangle by adding three disjoint pendant edges）. Fujisawa and Yamashita showed that the degree condition of Matthews and Sumner can be restricted only to end-vertices of induced copies of Z1 （the graph obtained from a triangle by adding one pendant edge）. Our main result in this paper is a characterization of all graphs H such that a 2-connected claw-free graph G is Hamiltonian if eachend-vertex of every induced copy of H in G has degree at least IV（G）I/3 ＋ 1. This gives an affirmative solution of the conjecture of Broersma up to an additive ***-vertex of every induced copy of H in G has degree at least IV（G）I/3 ＋ 1. This gives an affirmative solution of the conjecture of Broersma up to an additive constant.

关键词： Induced subgraph large degree end-vertex claw-free graph Hamiltonian graph

Interfacial engineering for efficient and stable two-terminal perovskite-based tandem solar cells

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Rare Metals 2024年第11期43卷 5573-5624页

作者： Ying Li Di-sheng Yao Fei long Guo-Zhen zhang Feng Yu Guangxi Key Laboratory of Optical and Electronic Material and Devices School of Materials Science and EngineeringGuilin University of TechnologyGuilin 541004China Guangxi Key Laboratory of Optical and Electronic Material and Devices School of Materials Science and EngineeringCollaborative Innovation Center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of ResourcesGuilin University of TechnologyGuilin 541004China School of Chemistry and Materials Science Nanjing University of Information Science and TechnologyNanjing 210044China

Two-terminal(2T)tandem solar cells(TSCs)are optically and electrically connected by two subcells with complementary bandgaps,which are designed to overcome the Shockley-Queisser(S-Q)limit of singlejunction solar ***-inorganic hybrid perovskites are ideal light-absorbing materials for 2T TSCs due to their tunable bandgaps,low-temperature solution-based processing,and excellent light absorption ***,2T perovskite-based TSCs(PTSCs)have aroused widespread interest among the photovoltaic *** present,the key to obtaining efficient and stable 2T PTSCs is establishing efficient interfaces and layers with good photoelectric properties and high compatibility of *** particular,interfacial engineering based on effective recombination layers(RCLs)and buffers has a prominent effect on achieving enhanced power conversion efficiency(PCE)of 2T PTSCs with improved operational *** this article,the current frontier issues of 2T PTSCs including different device structures and properties are reviewed in detail to analyze their merits,demerits and solutions to overcome ***,the component engineering,interface engineering and theoretical PCE analysis for designing 2T PTSCs proposed by material simulations are ***,the scalability of interfacial passivation from single-junction perovskite solar cells to 2T PTSCs is evaluated,and the function mechanisms of RCLs and buffers are also summarized and analyzed ***,the challenges faced by 2T PTSCs are pointed out,and their developme nt directions are *** article aims to provide viable guidance for realizing practical manufacturing technologies for the commercialization of 2T PTSCs.

关键词： Two-terminal tandem solar cells Organic-inorganic perovskites Passivation interfaces Recombination layers and buffers Efficiency and stability

Synthesis,Structure and Characterization of Bis(ethylene-1,2-dithiolate)(μ_(2)-di-2-pyridyl-ketone p-phenyldiamine-N,N')-tin(IV)Dichloromethane

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Chinese Journal of Structural Chemistry 2005年第12期24卷 1355-1358页

作者： WANG long-sheng zhang Jian-Jun HU sheng-Min FU Rui-Biao WU Xin-Tao State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterThe Chinese Academy of SciencesFuzhouFujian 350002China

A new mononuclear tin（Ⅳ） complex [Sn（edt）2L]·CH2Cl2 （edt = ethane-1,2-dithiolate, L = di-2-pyridyl-ketone p-phenyldiamine） was obtained by a one-pot reaction which involves in situ formation of a new Schiff-base ligand L. The title compound （C22H24C12N484Sn） crystallizes in monoclinic, space group P211n with a = 13.438（1）, b = 12.2657（10）, c = 17.1477（13） k,, β = 99.323（ 1 ）°, V = 2789.1 （4） A, Z = 4, Mr = 662.28, Dc= 1.577g/cm^3, F（000） = 1328,μ= 1.426 mm^-1, the final R = 0.0450 and wR = 0.1077 for 3868 observed reflections （1 〉 2σ））. In the title compound, Sn^4＋ ion is six-coordinated with four sulfur atoms of two edt ligands and two nitrogen atoms of the ligand di-2-pyridyl-ketone p-phenyldiamine to form a highly distorted octahedron.

关键词： tin p-phenyldiamine ethene-1,2-thiolate di-2-pyridyl-ketone Schiff-base

Efficient generation of relativistic near-single-cycle mid-infrared pulses in plasmas

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Light(Science & Applications) 2020年第1期9卷 1581-1589页

作者： Xing-long Zhu Su-Ming Weng Min Chen Zheng-Ming sheng Jie zhang Key Laboratory for Laser Plasmas(MOE) School of Physics and AstronomyShanghai Jiao Tong University200240 ShanghaiChina Collaborative Innovation Center of IFSA Shanghai Jiao Tong University200240 ShanghaiChina SUPA Department of PhysicsUniversity of StrathclydeGlasgow G40NGUK Cockcroft Institute Sci-Tech DaresburyCheshire WA44ADUK Tsung-Dao Lee Institute 200240 ShanghaiChina Institute of Physics Chinese Academy of Sciences100190 BeijingChina

Ultrashort intense optical pulses in the mid-infrared(mid-IR)region are very important for broad applications ranging from super-resolution spectroscopy to attosecond X-ray pulse generation and particle ***,currently,it is still difficult to produce few-cycle mid-IR pulses of relativistic intensities using standard optical ***,we propose and numerically demonstrate a novel scheme to produce these mid-IR pulses based on laser-driven plasma optical *** this scheme,a plasma wake is first excited by an intense drive laser pulse in an underdense plasma,and a signal laser pulse initially at the same wavelength(1 micron)as that of the drive laser is subsequently injected into the plasma *** signal pulse is converted to a relativistic multi-millijoule near-singlecycle mid-IR pulse with a central wavelength of ~5 microns via frequency-downshifting,where the energy conversion efficiency is as high as approximately 30% when the drive and signal laser pulses are both at a few tens of millijoules at the *** scheme can be realized with terawatt-class kHz laser systems,which may bring new opportunities in high-field physics and ultrafast science.

关键词： relativistic cycle scheme

Deep Learning Based Attack Detection for Cyber-Physical System Cybersecurity:A Survey

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IEEE/CAA Journal of Automatica Sinica 2022年第3期9卷 377-391页

作者： Jun zhang Lei Pan Qing-long Han Chao Chen sheng Wen Yang Xiang IEEE the School of Science Computing and Engineering TechnologiesSwinburne University of Technology the School of Information Technology Deakin University the College of Science and Engineering James CookUniversity

With the booming of cyber attacks and cyber criminals against cyber-physical systems(CPSs),detecting these attacks remains *** might be the worst of times,but it might be the best of times because of opportunities brought by machine learning(ML),in particular deep learning(DL).In general,DL delivers superior performance to ML because of its layered setting and its effective algorithm for extract useful information from training *** models are adopted quickly to cyber attacks against CPS *** this survey,a holistic view of recently proposed DL solutions is provided to cyber attack detection in the CPS context.A six-step DL driven methodology is provided to summarize and analyze the surveyed literature for applying DL methods to detect cyber attacks against CPS *** methodology includes CPS scenario analysis,cyber attack identification,ML problem formulation,DL model customization,data acquisition for training,and performance *** reviewed works indicate great potential to detect cyber attacks against CPS through DL ***,excellent performance is achieved partly because of several highquality datasets that are readily available for public ***,challenges,opportunities,and research trends are pointed out for future research.

关键词： Cyber-physical system cybersecurity deep learning intrusion detection pattern classification

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腺性膀胱炎动物模型不同治疗方法的效果分析

东南国防医药 2012年第6期14卷 514-516页

作者：易憬熊飞苏良平陈登杨兵张盛龙张宝珍刘长易文龙武汉钢铁(集团)公司大冶铁矿职工医院湖北黄石435006 华中科技大学同济医学院计划生育研究所湖北武汉430030 武汉科技大学附属天佑医院湖北武汉430064

目的探讨腺性膀胱炎的最佳治疗方法。方法 40只成年雌性健康SD大鼠,其中35只建成腺性膀胱炎动物模型,随机分为生理盐水对照组5只(A组)、抗感染组10只(B组)、托特罗定组10只(C组)、抗感染+托特罗定组10只(D组)进行研究,在治疗前和开始治... 详细信息

目的探讨腺性膀胱炎的最佳治疗方法。方法 40只成年雌性健康SD大鼠,其中35只建成腺性膀胱炎动物模型,随机分为生理盐水对照组5只(A组)、抗感染组10只(B组)、托特罗定组10只(C组)、抗感染+托特罗定组10只(D组)进行研究,在治疗前和开始治疗后两周均给予尿动力学检查。另外5只不做任何处理,作正常对照组(E组),在和动物模型相同的时间点给予两次尿动力学检查。结果正常对照组与治疗后的生理盐水对照组、抗感染组、托特罗定组的排尿压和最大膀胱容量有显著性差异(P0.05),治疗后的生理盐水对照组与抗感染组、托特罗定组的排尿压和最大膀胱容量有显著性差异(P<0.05),治疗后的抗感染组、托特罗定组与抗感染+托特罗定组的排尿压和最大膀胱容量有显著性差异(P<0.05)。结论抗感染与托特罗定共同治疗腺性膀胱炎动物模型,有较好的效果。

关键词：腺性膀胱炎托特罗定排尿压最大膀胱容量

Factorization of radiative leptonic D-meson decay with sub-leading power corrections

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Chinese Physics C 2021年第7期45卷 20-30页

作者： long-sheng Lu School of Physics Nankai University300071 TianjinChina

In this work,we calculate the sub-leading power contributions to radiative leptonic D→γν*** the first time,we provide the analytic expressions of next-to-leading power contributions and the error estimation associated with the power expansion of O(∧_(QCD)/m_(c)).In our calculation,we adopt two different models of the D-meson distribution amplitudesφ^(+)_(D,Ⅰ)andφ^(+)_(DⅡ).Within the framework of QCD factorization as well as the dispersion relation,we evaluate the soft contribution up to the next-to-leading logarithmic accuracy and also consider the higher-twist contribution from the two-particle and three-particle distribution ***,we find that all the sub-leading power contributions are significant atλd(μ0)354 MeV,and the next-to-leading power contributions lead to 143%inφ^(+)_(D,Ⅰ)and 120%inφ^(+)_(DⅡ)corrections to leading power vector form factors with Eγ=0.5 *** the corrections from the higher-twist and local sub-leading power contributions are enhanced with increasing inverse moment,it is difficult to extract an appropriate inverse moment of the D-meson distribution *** predicted branching fractions are(1.88^(+0.36)_(0.29))×10^(-5)forφ^(+)_(D,Ⅰ)and(2.31^(+0.65)_(-0.54))×10^(-5)forφ^(+)_(DⅡ).

关键词： factorization D-meson radiative leptonic decay sub-leading power correction

Magnetic field assisted Fenton reactions for the enhanced degradation of methyl blue

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Chinese Chemical Letters 2009年第1期20卷 99-101页

作者： Xiao long Hao Lu Yi Zou Guang sheng zhang Yi Bo zhang Laboratory of Environmental Pollution Prevention School of Environmental and Civil Engineering Jiangnan University Wuxi 214122 China

Magnetic field was tentatively introduced into Fenton reactions system for the degradation and discoloration of methyl blue as the represent of organic chemical dye, which was a bio-refractory organic pollutant in industry wastewater. It was found that under optimal Fenton reaction conditions, with the assistant of magnetic field in Fenton reactions, the degradation rate of methyl blue, the decomposition rate of H2O2 and the conversion rate of Fe^2＋ were accelerated, the extent of them would be improved by the increase of magnetic field intensity. Meanwhile, the mineralization of methyl blue （CODer） was improved by over 10% with magnetic field.

关键词： Magnetic field Fenton reactions Methyl blue Dye