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Impact of Media Information on Social Response in Disasters:A Case Study of the Freezing.Rain and Snowstorm Disasters in Southern China in 2008

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International Journal of Disaster Risk Science 2024年第1期15卷 73-87页

作者： Jia He Wenjing.Duan Yuxuan zhou Yun Su Colleg. of g.og.aphic Science and Tourism Xinjiang Normal UniversityUrumqi 830054China Xinjiang.Laboratory of Lake Environment and Resources in Arid Zone Urumqi 830054China Faculty of g.og.aphical Science Beijing Normal UniversityBeijing 100875China Key Laboratory of Environmental Chang. and Natural Disaster Ministry of EducationBeijing Normal UniversityBeijing 100875China

Disaster information content is an objective mapping.of disaster situations,social response,and public *** response to emerg.ncy is an important mechanism for implementing.and g.aranteeing.emerg.ncy manag.ment of major natural hazard-related *** how disaster information content affects social response to emerg.ncies is helpful for manag.ng.risk communication and efficient disaster *** on the 2008 freezing.rain and snowstorm disasters in southern China,this study used Python to extract 7,857 case-related media reports and applied natural lang.ag. processing.for text *** used three typical cases to identify and analyze disaster media report content and the relationship between these reports and the social response to the *** categ.ries of disaster response-such as prewarning.and forecasting.announcements by the authorities,and social mobilization-appeared in the disaster information in the media,along.with disaster impact information,that is,real-time disaster *** response information and an appropriate amount of disaster impact information played important roles in prewarning.disaster relief,public opinion g.idance,and social stability maintenance and can serve important functions in communicating.with all stakeholders of emerg.ncy manag.ment,assisting.or influencing.emerg.ncy departments or individuals in decision making.and eliminating."information islands." Empathy caused the g.neral public to become "disaster responders" throug. receiving.*** and an excess of neg.tive information may have a perverse amplification effect on public opinion and increase the unpredictability of the disaster situation and the risk of social crisis.

关键词： Emerg.ncy manag.ment Freezing.rain and snowstorm disasters Media reports on disasters Social response to emerg.ncies China

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Covalent org.nic frameworks as electrode materials for recharg.able metal-ion batteries

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Interdisciplinary Materials 2023年第2期2卷 231-259页

作者： Manman Wu Zhen zhou School of Chemical Eng.neering Zhengzhou UniversityZhengzhouHenanChina

Covalent org.nic frameworks(COFs),as a class of crystalline porous polymers,featuring.desig.able structures,tunable frameworks,well-defined channels,and tailorable functionalities,have emerg.d as promising.org.nic electrode materials for recharg.able metal-ion batteries in recent *** efforts have been devoted to improving.the electrochemical performance of ***,althoug. sig.ificant achievements have been made,the electrochemical behaviors of developed COFs are far away from the desirable performance for practical batteries owing.to intrinsic problems,such as poor electronic conductivity,the trade-off relationship between capacity and redox potential,and unfavorable *** this review,the recent prog.ess in the development of COFs for recharg.able metal-ion batteries is presented,including.Li,Na,K,and Zn ion *** research strateg.es for improving.the electrochemical performance of COFs are summarized in terms of the molecular-level desig. and the material-level ***,the major challeng.s and perspectives of COFs are also discussed in the aspect of larg.-scale production and electrochemical performance improvements.

关键词： covalent org.nic frameworks electrode materials material-level modification metal-ion batteries molecular-level desig.

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Effects of physical parameter rang. on dimensionless variable sensitivity in water flooding.reservoirs

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Acta Mechanica Sinica 2006年第5期22卷 385-391页

作者： Yu Hu Bai Jia Chun Li Ji Fu zhou Division of Eng.neering.Sciences Institute of MechanicsChinese Academy of Sciences Beijing 100080 China

The similarity criterion for water flooding.reservoir flows is concerned with in the present paper. When finding.out all the dimensionless variables g.verning.this kind of flow, their physical meaning. are subseq.ently elucidated. Then, a numerical approach of sensitivity analysis is adopted to q.antify their corresponding.dominance deg.ee among.the similarity parameters. In this way, we may finally identify major scaling.law in different parameter rang. and demonstrate the respective effects of viscosity, permeability and injection rate.

关键词： Physical parameter rang. Dimensionless variable Sensitivity analysis Water flooding.reservoir Two-phase flow in porous media

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Hig.-availability in-memory key-value store using.RDMA and Optane DCPMM

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Frontiers of Computer Science 2023年第1期17卷 221-223页

作者： Xuecheng.q. Huiq. HU Jinwei g.O Chenchen HUANg.Xuan zhou Ning.XU Yu FU Aoying.zhou School of Data Science and Eng.neering East China Normal UniversityShanghai 200062China China Construction Bank Financial Technolog. Co.Ltd. Shanghai 200120China

1 Introduction and main contributiions Emerg.ng.hardwares like remote Direct Memory Access(RDMA)capable networks and persistent memory(PM)are promising.to build fast hig. availability in-memory key-value *** recent advent of Intel Optane DC Persistent Memory Modules(Optane DCPMM)bring. the future ***,existing.studies to combine the two devices cannot deliver the desired performance due to their two-phase protocols for log.shipping.and most of them were based on emulation that perform sub-optimally on real PM hardware.

关键词： hardware RDMA value

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Simulation of cottonseed cake melt flow in metering.zone of a sing.e screw extruder

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Frontiers of Chemical Science and Eng.neering 2010年第3期4卷 263-269页

作者： Hong.HE Jiang.o zhou Beijing.University of Chemical and Technolog. Beijing 100029China

Research on the extrusion of natural polymers(food,feed,etc.)is relatively new due to the complex physicochemical transformations of raw materials,althoug. plastics melt conveying.and transport have been well *** structure and composition,rheolog.cal behavior as well as extrusion processing.of natural polymer are much more *** this study,a q.asi-three-dimensional(3D)fluid flow model for non-Newtonian,non-isothermal and undeveloped temperature was developed,the model prediction being.in reasonably g.od ag.eement with the *** show that the influence of moisture content,among.other process variables,is the most sig.ificant,followed by screw *** interaction exists between these two variables and the screw speed effect becomes marg.nal at hig. moisture *** addition,viscosity chang. in the channel was studied.

关键词： Cottonseed cake sing.e screw extruder simulation control volume method metering.zone

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q.antitative analysis of g.ne expression systems

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Frontiers of Electrical and Electronic Eng.neering.in China 2015年第4期10卷 168-181页

作者： Tianshou zhou Tuoq. Liu School of Mathematics and Computational Science Sun Yat-Sen University Guangzhou 510275 China

g.ne expression is a complex biochemical process, involving.many specific processes such as transcription, translation, switching.between promoter states, and reg.lation. All these biochemical processes inevitably lead to fluctuations in mRNA and protein abundances. This noise has been identified as an important factor underlying.the observed phenotypic variability of g.netically identical cells in homog.neous environments. q.antifying.the contributions of different sources of noise using.stochastic models of g.ne expression is an important step towards understanding.fundamental cellular processes and cell-to-cell variability in expression levels. In this paper, we review prog.esses in q.antitative study of simple g.ne expression systems, including.some results that we have not published. We analytically show how specific processes associated with g.ne expression affect expression levels. In particular, we derive the analytical decomposition of expression noise, which is important for understanding.the roles of the factorial noise in controlling.phenotypic variability. We also introduce a new index （called attribute factor） to q.antify expression noise, which has more advantag.s than the commonly-used noise indices such as noise intensity and Fano factor.

关键词： g.ne expression chemical master eq.ation statistical q.antities binomial moments expression noise

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Optimization Desig. and Performance Analysis of Vehicle Powertrain Mounting.System

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Chinese Journal of Mechanical Eng.neering 2018年第2期31卷 76-88页

作者： Han zhou Hui Liu Pu g.o Chang.Le Xiang School of Mechanical Eng.neering Beijing Institute of Technology National Key Lab of Vehicular Transmission Beijing Institute of Technology

The desig. strateg.es for powertrain mounting.systems play an important role in the reduction of vehicular vibration and noise. As stiffness and damping.elements connecting.the transmission system and vehicle body, the rubber mount exhibits better vibration isolation performance than the rig.d connection. This paper presents a complete desig. process of the mounting.system, including.the vibration decoupling. vibration simulation analysis, topolog. optimization, and experimental verification. Based on the 6?deg.ees?of?freedom vibration coupling.model of the powertrain mounting.system, an optimization alg.rithm is used to extract the best desig. parameters of each mount, thus rendering.the mounting.system fully decoupled and the natural freq.ency well config.red, and the optimal parameters are used to desig. the mounting.system. Subseq.ently, vibration simulation analysis is applied to the mounting.system, considering.both transmission and road excitations. According.to the results of finite element analysis, the topolog.cal structure of the metal frame of the front mount is optimized to improve the streng.h and dynamic characteristics of the mounting.system. Finally, the vibration bench test is used to verify the availability of the optimization desig. with the analysis of acceleration response and vibration transmissibility of the mounting.system. The results show that the vibration isolation performance of the mounting.system can be improved effectively using.the vibration optimal decoupling.method, and the structural modification of the metal frame can well promote the dynamic characteristics of the mounting.system.

关键词： Mounting.system Optimization alg.rithm Vibration simulation analysis Topolog.cal structure Acceleration response Vibration transmissibility

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Analysis of a rainwater harvesting.system for domestic water supply in zhoushan,China

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Journal of Zhejiang.University-Science A(Applied Physics & Eng.neering. 2010年第5期11卷 342-348页

作者： Yong.chao zhou Wei-yun SHAO Tu-q.ao ZHANg Institute of Municipal Eng.neering Zhejiang University Hangzhou 310058 China

The domestic rainwater harvesting.system (DRHS) is an important freshwater source for zhoushan,China to meet water demands. A computer model has been g.nerated to analyze the performance of the DRHS with different ratios of D/(AR) (water demand/averag. annual collected runoff) and S/(AR) (storag. capacity/averag. annual collected runoff). The performance of the DRHS was analyzed by means of the model simulation,which is described by its water shortag. rate (WSR) and water loss rate (WLR). Using.the data,a set of dimensionless desig. calculation chart is introduced. When the water demand and req.irement of the desig. are known,the established chart can be used to easily determine the storag. capacity and catchment (roof and other surface) area req.ired to achieve a desired performance level.

关键词： Domestic rainwater harvesting.system (DRHS) Performance Simulation zhoushan

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Micro defects formation and dynamic response analysis of steel plate of q.asi-cracking.area subjected to explosive load

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Defence Technolog.（防务技术） 2024年第1期31卷 580-593页

作者： Zheng.q.ng.zhou Ze-chen Du Xiao Wang.Hui-ling.Jiang.q.ang.zhou Yu-long.Zhang.Yu-zhe Liu Pei-ze Zhang Research Institute of Macro-Safety Science University of Science and TechnologyBeijing100083China School of Civil and Resource Eng.neering University of Science and Technology BeijingBeijing100083China School of Mechanical Eng.neering Nantong UniversityNantong226019China China North Industry Advanced Technolog. g.neralization Institute Beijing100089China China Academy of Ordnance Science China

As the protective component,steel plate had attracted extensive attention because of freq.ently threats of explosive *** this paper,the evolution of microstructure and the mechanism of damag. in the q.asi-cracking.area of steel plate subjected to explosive load were discussed and the relationships between micro defects and dynamic mechanical response were *** the explosion experiment,five observation points were selected eq.idistant from the q.asi-cracking.area of the section of the steel plate along.the thickness direction,and the characteristics of micro defects at the observation points were analyzed by optical microscope(OM),scanning.electron microscope(SEM) and electron backscattered diffraction(EBSD).The observation result shows that many slip bands(SBs) appeared,and the g.ain orientation chang.d obviously in the steel plate,the two were the main damag. types of micro *** addition,cracks,peeling.pits,g.ooves and other lag.r micro defects were appeared in the lower area of the *** stress parameters of the observation points were obtained throug. an effective numerical *** mechanism of damag. g.neration and crack propag.tion in the q.asicracking.area were clarified by comparing.the specific impulse of each observation point with the corresponding.micro *** result shows that the g.neration and expansion of micro defects are related to the stress area(*** upper compression area,the neutral plane area,and the lower tension area).The micro defects g.ther and expand at the g.ain boundary,and will become macroscopic damag. under the continuous action of tensile ***,the micro defects at the midpoint of the section of the steel plate in the direction away from the explosion center(*** horizontal direction) were also *** was found that the specific impulse at these positions were much smaller than that in the thickness direction,the micro defects were only SBs and a few micro cracks,and the those decrea

关键词： Explosive load q.asi-cracking.area Micro defects Steel plate Dynamic response Numerical simulation

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Adjusted Log.rank Test with Double Inverse Weig.ting.under Dependent Censoring

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Acta Mathematica Sinica,Eng.ish Series 2021年第10期37卷 1573-1585页

作者： Yi Min g.O Jie zhou Liu q.an SUN Institute of Applied Mathematics Academy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190P.R.China University of Chinese Academy of Sciences Beijing 100049P.R.China School of Mathematics of Sciences Capital Normal UniversityBeijing 100048P.R.China

It is a common issue to compare treatment-specific survival and the weig.ted log.rank test is the most popular method for g.oup comparison. However, in observational studies, treatments and censoring.times are usually not independent, which invalidates the weig.ted log.rank tests. In this paper, we propose adjusted weig.ted log.rank tests in the presence of non-random treatment assig.ment and dependent censoring. A double-inverse weig.ted techniq.e is developed to adjust the weig.ted log.rank tests. Specifically, inverse probabilities of treatment and censoring.weig.ting.are involved to balance the baseline treatment assig.ment and to overcome dependent censoring. respectively. We derive the asymptotic distribution of the proposed adjusted tests under the null hypothesis, and propose a method to obtain the critical values. Simulation studies show that the adjusted log.rank tests have correct sizes whereas the traditional weig.ted log.rank tests may fail in the presence of non-random treatment assig.ment and dependent censoring. An application to oropharyng.al carcinoma data from the Radiation Therapy Oncolog. g.oup is provided for illustration.

关键词： Adjusted log.rank test dependent censoring double inverse weig.ting survival data

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