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Highly stretchable,soft and sticky PDMS elastomer by solvothermal polymerization process

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Nano Research 2021年第10期14卷 3636-3642页

作者： jin Huang yuchun Cai Chengyuan xue jin Ge Haoyu Zhao Shu-Hong yu Division of Nanomaterials&Chemistry Hefei National Laboratory for Physical Sciences at the MicroscaleInstitute of EnergyHefei Comprehensive National Science CenterCAS Center for Excellence in NanoscienceDepartment of ChemistryUniversity of Science and Technology of ChinaHefei 230026China

Siloxane rubber shows attractive properties of high stability,elasticity and ***,the regulation of its properties renders it widely used in many application ***,most of the reported performance improvement methods of siloxane rubber focus on the change of chemical composition of siloxane rubber,including the design of molecular chain and the introduction of other compounds,*** a strategy is still faced with many limitations in practical *** this work,on the premise of not changing the chemical composition of siloxane rubber,we propose a facile solvothermal polymerization process to change the structure of cross-linking networks,so as to obtain the siloxane rubber with controllable mechanical *** to the normal curing method,we realized polydimethylsiloxane elastomer(PDMS)with maximum elongation of more than 3,000%(>10 times of normally cured one)and tensile modulus lower than 0.15 MPa(<1/10 of normally cured one).In addition to superior stretchability,it gains extra high softness,stickiness and sensitive response to organic *** on our solvothermal cured PDMS,its applications in oil collection and organic solvent sensor have been *** is expected that this method can be readily utilized widely and shows great application potentials.

关键词： polydimethylsiloxane elastomer(PDMS)property modification solvothermal polymerization controllable cross-linking networks organic solvent sensor

A brief review of antimatter production

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Frontiers of physics 2012年第6期7卷 637-646页

作者： yu-Gang Ma jin-Hui Chen Liang xue Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100080China

In this article, we present a brief review of the discoveries of kinds of antimatter particles, including positron （^-e）, antiproton （^-p）, antideuteron （^-d） and antihelium-3 （3^-He）. Special emphasis is put on the discovery of the antihypertriton（∧^3^-H） and antihelium-4 nucleus （4^-He, or ^-α） which were reported by the RHIC-STAR experiment very recently. In addition, brief discussions about the effort to search for antinuclei in cosmic rays and study of the longtime confinement of the simplest antimatter atom, antihydrogen are also given. Moreover, the production mechanism of anti-light nuclei is introduced.

关键词： antimatter,^-e,^-p,^-d 3^-H ∧^3^-H 3^-He 4^-He

2004-2010年浙江省象山县性传播疾病发病趋势分析

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疾病监测 2011年第10期26卷 799-801页

作者：薛金玉裴广军陈子萌陈爱女象山县疾病预防控制中心传染病防制科浙江象山315700

目的了解浙江省象山县性传播疾病的流行规律及变化趋势。方法采用描述流行病学方法对象山县2004-2010年性传播疾病疫情监测资料进行统计分析。结果 2004-2010年,象山县报告7种性传播疾病5415例(死亡2例),年均发病率142.48/10万,其中乙... 详细信息

目的了解浙江省象山县性传播疾病的流行规律及变化趋势。方法采用描述流行病学方法对象山县2004-2010年性传播疾病疫情监测资料进行统计分析。结果 2004-2010年,象山县报告7种性传播疾病5415例(死亡2例),年均发病率142.48/10万,其中乙类传染病性传播疾病3种4276例,占78.97%。报告性传播疾病以淋病和梅毒为主,占78.78%。象山县性传播疾病2004-2007年发病率呈逐年下降趋势(Linear-by-LinearAssociation检验Z=61.79,P<0.0001),2007-2010年呈增长趋势(Linear-by-Linear Association检验Z=12.70,P<0.0001),其中,淋病年发病率呈下降趋势(Linear-by-Linear Association检验Z=438.93,P<0.0001),梅毒年发病率呈明显逐年上升趋势(Linear-by-Linear Association检验Z=601.86,P<0.0001)。结论淋病和梅毒是威胁象山县人群健康的主要性传播疾病,梅毒应作为今后防制工作的重点。

关键词：性传播疾病发病趋势流行特征梅毒淋病

UAV-assisted cooperative offloading energy efficiency system for mobile edge computing

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Digital Communications and Networks 2024年第1期10卷 16-24页

作者： xue-Yong yu Wen-jin Niu Ye Zhu Hong-Bo Zhu Jiangsu Key Laboratory of Wireless Communications Nanjing University of Posts and Telecommunications Nanjing210003China Engineering Research Centerof Health Service System Based on Ubiquitous Wireless Networks Ministry of EducationNanjng Universityof Posts and Telecommunications Nanjing210003China

Reliable communication and intensive computing power cannot be provided effectively by temporary hot spots in disaster areas and complex terrain ground *** this has greatly developed the application and integration of UAV and Mobile Edge Computing(MEC)to the Internet of Things(loT).However,problems such as multi-user and huge data flow in large areas,which contradict the reality that a single UAV is constrained by limited computing power,still *** to allowing UAV collaboration to accomplish complex tasks,cooperative task offloading between multiple UAVs must meet the interdependence of tasks and realize parallel processing,which reduces the computing power consumption and endurance pressure of *** the computing requirements of the user terminal,delay constraint of a computing task,energy constraint,and safe distance of UAV,we constructed a UAV-Assisted cooperative offloading energy efficiency system for mobile edge computing to minimize user terminal energy ***,the resulting optimization problem is originally nonconvex and thus,difficult to solve *** tackle this problem,we developed an energy efficiency optimization algorithm using Block Coordinate Descent(BCD)that decomposes the problem into three convex ***,we jointly optimized the number of local computing tasks,number of computing offloaded tasks,trajectories of UAV,and offloading matching relationship between multi-UAVs and multiuser *** results show that the proposed approach is suitable for different channel conditions and significantly saves the user terminal energy consumption compared with other benchmark schemes.

关键词： Computation offloading Internet of things(IoT) Mobile edge computing(MEC) Block coordinate descent(BCD)

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AutoCAD用户界面定制技术及实现

天津理工学院学报 1999年第4期15卷 16-19页

作者：吴学金王法玉天津理工学院计算机科学与工程系天津300191

本文依据ＡｕｔｏＣＡＤ用户界面定制机制，分析了如何根据用户开发的系统，确定输入方式的选定原则，以及编制用户界面所采用的方法．深入讨论了如何组织编制专业化的用户操作界面，并以一套机械ＣＡＤ绘图系统为例做了说明总结．

关键词： AutoCAD 用户界面工具条 CAD 操作界面

Disseminated strongyloidiasis in a patient with rheumatoid arthritis:A case report

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World Journal of Clinical Cases 2022年第18期10卷 6163-6167页

作者： jin-Hao Zheng Lu-yu xue Department of Critical Care Medicine Huashan Hospital Affiliated to Fudan UniversityShanghai 200040China

BACKGROUND Strongyloidiasis is usually a chronic infection but it can develop into a fatal disease in immunosuppressed *** SUMMARY A 68-year-old male with rheumatoid arthritis was treated with a variety of immunosuppressants for the past 3 ***,the patient presented with a partial small-bowel obstruction,petechia,coughing and peripheral *** diagnosis was difficult to clarify in other *** hospital found Strongyloides stercoralis larvae with active movement in the routine stool and sputum *** diagnosis of disseminated strongyloidiasis was *** combined with albendazole was used for *** patient responded to therapy and was *** This case underscores the importance of comprehensive differential diagnosis in immunocompromised patients.

关键词： Strongyloidiasis Rheumatoid arthritis Immunosuppressants Small-bowel obstruction Ivermectin Albendazole Case report

The influence of nozzle diameters on the interaction characteristic of combustion-gas jets and liquid

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Defence Technology（防务技术） 2017年第4期13卷 257-262页

作者： Xiao-chun xue Yong-gang yu jin-ming Xie School of Energy and Power Engineering Nanjing University of Science and Technology Nanjing China Luzhou North Chemical Industry Corporation Luzhou China

To investigate the controlling method of interior ballistic stability of bulk-loaded propellant guns,the combustion-gas generator and cylindrical stepped-wall chamber are designed aiming at the injection processes of combustion-gases in *** expansion courses of Taylor cavities and the turbulent mixing characteristic of gaseliquid are recorded by means of high speed photographic *** on the experiment,three-dimensional unsteady model on the interaction of gas and liquid is established to simulate expansion characteristics of twin combustion-gas jets in liquid under different nozzle *** distribution regularities of characteristic parameter in jet field are obtained and *** results show the pressure,velocity and temperature distributions under different nozzle diameters are basically the same at the initial *** time goes on,these characteristic parameters under different nozzle diameters have large differences.

关键词： Fluid mechanics Combustion-gases Taylor cavities Jet shape Bulk-loaded propellant

Microstructure-based finite element modeling of effect of metastable austenite on mechanical properties of quenching and partitioning (Q&P)980 steel

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Journal of Iron and Steel Research International 2018年第11期25卷 1140-1148页

作者： Hui Zheng Wei Li yu Gong Li Wang xue-jun jin Institute of Advanced Steels and Materials School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration Shanghai Jiao Tong University Shanghai 200240China State Key Lab of Development and Application Technology of Automotive Steels Baosteel Research Institute Shanghai 201900China

The microstructure-based finite element modeling was conducted to study the mechanical properties of Q&P 980 steel at the microscopic *** two-dimensional representative volume elements of real microstructure were obtained from electron backscattered diffraction ***-Kocks equation was used to predict the constitutive strain-stress relationships of individual ***-induced martensitic transformation takes place when the driving force exceeds the critical driving force according to a stress-invariant-based *** macroscopic stress-strain curves and the work-hardening rate curves obtained from modeling fit well with the experimental *** simulation results also indicate that the local distributions of stress and strain in constituent phases are dependent on their *** ferrite carries the highest strain,while hard mechanical-induced martensite carries the highest *** comparing the modeling results of the microstructures with and without austenite,it shows that the transformation of retained austenite to hard martensite can increase the .work-hardening ability and hence improve the strength and ductility of the *** detailed finite element modeling methods and results are presented and discussed.

关键词： Q&P steel Retained austenite Mechanical property TRIP effect Finite element modeling

Synthesis,crystallographic characterization,and potential application of fullerene anisole derivatives as nitrocellulose stabilizer

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Defence Technology（防务技术） 2023年第6期24卷 164-172页

作者： Jie Xiong Bo jin xue-mei yu Ling Liao Ru-fang Peng State Key Laboratory of Environment-friendly Energy Materials School of Materials Science and EngineeringSouthwest University of Science and TechnologySichuanMianyang621010China

A series of fullerene anisole derivative stabilizers was synthesized by nucleophilic substitution reaction using hexachlorofullerene and benzyl alcohol as raw materials to extend the service duration of nitrocellulose(NC)-based ***-crystal X-ray diffraction,nuclear magnetic resonance,highresolution mass spectrometry,Fourier transform infrared(FT-IR)spectroscopy,and UV-Vis spectroscopy were used to characterize the structures of the synthesized fullerene anisole derivative *** violet,differential scanning calorimetry test,isothermal weight loss,vacuum stability test,and adiabatic accelerated test were used to study their compatibility with NC and their ability to stabilize *** results show that the designed and synthesized novel fullerene anisole derivative stabilizer has good compatibility with NC,and their overall stabilizing effects on NC are better than those of the traditional stabilizers,diphenylamine(DPA),and N,N’-dimethyl-N,N’-diphenylurea(C2).The stabilizing effects was ranked as:3b>2d>2a>2c>C2>2b>DPA>*** addition,FT-IR analysis and electron spin resonance spectroscopy were applied to explore the stability mechanism of fullerene-based stabilizers to *** results reveal that the new fullerene stabilizer can adsorb and effectively eliminate the nitrogen oxide free radicals generated by NC degradation;therefore,it can forbid the autocatalytic degradation of NC and stabilize NC.

关键词： Fullerene Nitrocellulose Stability Propellant Mechanism