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Structure-function integrated magnesium alloys and their composites

Journal of Magnesium and Alloys 2023年第10期11卷 3511-3544页

作者： junbin hou Ding Li Zejia Liu Zhikang Ji Shoufu Guan Chongchao Li Xiaoguang Qiao Igor S.Golovin Mingyi Zheng School of Material Science and Engineering Harbin Institute of TechnologyHarbin 150001China Department of Physical Metallurgy of Non-Ferrous Metals National Research Technological University“MISiS”Leninskiy pr.4Moscow 119049Russia Moscow Polytechnic University B.Semenovskay 38Moscow 107023Russia

Magnesium-based materials not only exhibit desirable characteristics such as low density and high specific strength, but also possess exceptional functional properties, including high damping capacity, high thermal conductivity, high electromagnetic interference shielding capacity, flame retardancy, and dissolvability. However, achieving a balance between strength and functional properties remains a significant challenge in Mg alloys community. Typically, strength depends on the pinning effect of defects, such as solute atoms and second phases,which hinder dislocation motion. On the other hand, optimal functional properties usually necessitate relative perfect crystal structures, as the presence of solute atoms and second phases can have adverse effects on damping capacity and thermal conductivity. Balancing these conflicting requirements is difficult. The trade-off between strength and functional properties of the Mg alloys should be broken to meet the urgent need in aerospace, automotive, 3C(computers, communications, and consumer electronics) and energy industries for high performance structural-functional integrated Mg-based materials. This review summarizes recent progress in understanding the mechanisms and influencing factors for the functional properties of Mg alloys. The mechanisms underlying the trade-off between strength and functional properties of Mg alloys is discussed. The latest developed structural-functional integrated Mg alloys and their composites are summarized, including high strength Mg-based materials with high damping capacity/high thermal conductivity/strong electromagnetic shielding capability/excellent flame-resistance/high dissolution rate. The future works of developing structure-function integrated Mg-based materials are proposed.

关键词： Structure-function integrated Mg alloys Composites Strength Damping capacity Thermal conductivity Electromagnetic interference shielding Ignition resistance Dissolvability

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Hybrid electromechanical properties of hetero-doped and homogeneously bonded dual-mode pressure sensor for indoor body area network node

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Science China(Information Sciences) 2024年第1期67卷 240-253页

作者： junbin YU Shuai XIAN Jinbiao MU Min WANG Yin WANG Xiaojuan hou Le ZHANG Jian HE Jiliang MU Xiujian Chou Science and Technology on Electronic Test and Measurement Laboratory North University of China Sichuan Aerospace Fenghuo Servo Control Technology Corporation

Pressure sensors are considerably important for continuous monitoring of human movement and the surrounding environment to construct a caregiving system for the elderly living *** challenge for pressure sensors that still remains is combining self-driven,comfort,and ***,an all-in-one conformal pressure sensor(ACPS) based on a homogeneous integrated triboelectric-piezoelectric hybrid sensor is *** ACPS has dual-mode sensing properties due to coupling triboelectrification and piezoelectric effect ensuring a stable response to various external ***-coated glass microspheres and polyacrylonitrile were uniformly filleted into the silicone rubber substrate using a hetero-doping method to create a stretchable electrode layer with flexible conformal characteristics and a piezoelectric layer with excellent piezoelectric properties,***,the triboelectric layer was fabricated using the same silicone rubber,allowing ACPS to be homogeneously bonded into an all-in-one structure with reliable *** allowed various functional layers to have outstanding interface characteristics and thus improve the electrical transmission *** developed ACPS had outstanding sensitivity(1.04 V/104Pa),high linearity(about 0.984),a wide measurement range(10–700 k Pa),and can accurately and continuously distinguish multiple ***,using a homemade signal processing circuit,ACPSs can be deployed in the human body and the room as indoor body area network *** successfully applied to the remote tracking of daily dynamic home life and the remote operation of small electrical equipment,these ACPSs can achieve real-time caregiving for the elderly living *** an application area desperately needed by society,this study envisions a caregiving system for the elderly living alone without violating personal privacy.

关键词： dual-mode pressure sensor homogeneous bonding all-in-onestructure indoor body area network node elderly caregiving microsystem

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东北地区水库信息遥感提取与格局分析

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湿地科学 2017年第4期15卷 582-587页

作者：侯军斌郑喜珅王铭王敏尚盈辛宋开山吉林师范大学旅游与地理科学学院吉林四平136000 中国科学院湿地生态与环境重点实验室中国科学院东北地理与农业生态研究所吉林长春130102

选取102景Landsat TM影像,通过水体信息分类处理,得到2010年东北地区水库分布图。根据水库分布格局,选取了5个典型区域,进行了1985~2015年东北地区水库数量、面积及其变化研究。结果表明,2010年东北地区共有水库3 722座,总面积为5 327.3... 详细信息

选取102景Landsat TM影像,通过水体信息分类处理,得到2010年东北地区水库分布图。根据水库分布格局,选取了5个典型区域,进行了1985~2015年东北地区水库数量、面积及其变化研究。结果表明,2010年东北地区共有水库3 722座,总面积为5 327.36 km^2,其中,黑龙江省有920座、吉林省有1 807座、辽宁省有743座、内蒙古自治区有252座水库;1985~2015年期间,5个典型区内的水库数量和面积整体呈增加趋势。

关键词：水库格局东北地区遥感影像

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MnO_(2)的生长机理及其对罗丹明B的快速降解

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材料科学与工程学报 2022年第1期40卷 34-39页

作者：王淑敏林海龙侯俊斌田源李超刘成功辽宁大学轻型产业学院辽宁沈阳110036 辽宁大学化学院辽宁沈阳110036

采用水热法以高锰酸钾和四水合氯化锰为原料,在180℃下制备了α-MnO_(2)、β-MnO_(2)及γ-MnO_(2);观察分析了不同晶型MnO_(2)的物相、形貌及微观结构,探究了水热时间对MnO_(2)晶型的影响及MnO_(2)的生长机理;研究了α-MnO_(2)+γ-MnO_... 详细信息

采用水热法以高锰酸钾和四水合氯化锰为原料,在180℃下制备了α-MnO_(2)、β-MnO_(2)及γ-MnO_(2);观察分析了不同晶型MnO_(2)的物相、形貌及微观结构,探究了水热时间对MnO_(2)晶型的影响及MnO_(2)的生长机理;研究了α-MnO_(2)+γ-MnO_(2)对罗丹明B(RhB)的降解性能。结果表明:在180℃水热条件下,最先产生α-MnO_(2)并伴有少量γ-MnO_(2),适当延长水热反应的时间,MnO_(2)发生晶型转变,逐渐由α-MnO_(2)和γ-MnO_(2)向柱状β-MnO_(2)转变。此外,研究发现α-MnO_(2)+γ-MnO_(2)对RhB具有高效快速的催化降解能力,当RhB溶液为60 mL时,10 min后MnO_(2)对RhB的降解率可高达93%;当增加RhB溶液到100 mL时,30 min后降解率可达93%,可见,MnO_(2)在催化降解有机染料方面具有极好的应用前景。

关键词：二氧化锰水热法生长机理罗丹明B 催化性能

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无人集群博弈对抗系统仿真验证及决策关键技术综述

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系统仿真学报 2024年第4期36卷 805-816页

作者：梁晓龙杨爱武张佳强侯岳奇王宁黄骁龚俊斌空军工程大学空管领航学院陕西西安710051 陕西省电子信息系统综合集成重点实验室陕西西安710051 中国舰船研究设计中心湖北武汉430064

无人集群博弈对抗是一种新兴的作战样式,在智能化战争扮演着至关重要的作用,其核心是自主生成博弈对抗决策序列,为集群“赋能”。分析了无人集群博弈对抗系统仿真验证的进展;从基于专家系统和博弈论的技术、基于群体智能和优化理论的技... 详细信息

无人集群博弈对抗是一种新兴的作战样式,在智能化战争扮演着至关重要的作用,其核心是自主生成博弈对抗决策序列,为集群“赋能”。分析了无人集群博弈对抗系统仿真验证的进展;从基于专家系统和博弈论的技术、基于群体智能和优化理论的技术,以及基于神经网络和强化学习的技术三个方面论述了自主决策关键技术,以及课题组在自主决策上开展的相关工作;提出了无人集群博弈对抗的发展方向。

关键词：无人集群博弈对抗自主决策系统仿真验证

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北京丰台桥南王庄子住宅精装修工程

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建设科技 2020年第5期 96-98页

作者：苑增奇刘晓蕾侯俊斌冯昀泽刘鹏北京市金龙腾装饰股份有限公司北京100101

1项目简介北京丰台桥南王庄子住宅精装修工程位于西南四环外,北侧为看丹路,西侧为王庄子西路,南侧为现有住宅区,东侧为马场路。总建筑面积为80640.1m2,北京市金龙腾装饰股份有限公司负责的施工面积为28965m2,施工范围为该商品住宅楼1#—... 详细信息

1项目简介北京丰台桥南王庄子住宅精装修工程位于西南四环外,北侧为看丹路,西侧为王庄子西路,南侧为现有住宅区,东侧为马场路。总建筑面积为80640.1m2,北京市金龙腾装饰股份有限公司负责的施工面积为28965m2,施工范围为该商品住宅楼1#——3#楼,共192户,3种户型。2施工重点与难点该工程是国内首批按照“使用年限及耐久性100年”设计建造的百年住宅,因此对施工质量要求极高。

关键词：施工质量要求住宅精装修商品住宅楼百年住宅住宅区北京丰台南王庄户型

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Monolithic homogeneous integrated miniaturized triboelectric nanogenerator with an inner air cavity for energy harvesting

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Science China(Technological Sciences) 2021年第3期64卷 662-672页

作者： hou XiaoJuan ZHANG ShengNan YU junbin YANG ChangJun ZHANG Ning HE Jian Chou XiuJian Science and Technology on Electronic Test and Measurement Laboratory North University of ChinaTaiyuan 030051China

To realize the high-efficiency acquisition of environmental mechanical energy,traditional triboelectric nanogenerators(TENGs)based on contact-separation consist of two separate triboelectric *** large contact-separation gap increases the overall volume of the device,making it difficult to realize miniaturization and *** work,therefore,presents a fully enclosed all-in-one-shaped flexible TENG(FEAST)with an air cavity using rubber mixing and high-temperature *** air pressure inside the enclosed air cavity facilitates effective contact-separation of the *** homogeneous integration between the triboelectric layer and the electrode layer enhances structural firmness without using extra spacer *** developed FEAST presents excellent mechanical durability even after 10000 *** increasing the active contact area between the triboelectric materials,a maximum peak-peak output voltage,current,and power density of 130 V,1.1μA,and277 m W/m^(2),respectively,were obtained with an effective stress area of 1 ***,the fully enclosed structure ensures that the output performance is not affected by the external *** FEAST was fixed onto the sole of a shoe to demonstrate its applicability in harvesting mechanical energy from human ***,the developed method provides a simple approach for optimizing the structure of TENGs and is compatible with large-scale manufacturing.

关键词： triboelectric nanogenerator air cavity homogeneous integration all-in-one shape energy harvesting

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基于SD-WAN的保险网络架构研究与实现

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金融科技时代 2024年第7期32卷 53-59页

作者：黄洋尤俊斌侯守立唐炳辉浙商财产保险股份有限公司

为应对多元化的保险客户需求,支撑保险公司进行业务创新,文章分析了保险公司传统网络架构存在的问题,研究了新一代组网技术SD-WAN,提出了保险公司新一代的网络架构设计思路,并进行敏捷组网和资源弹性扩展的实践。

关键词： SD-WAN技术网络架构敏捷组网弹性扩展

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Porous fiber paper and 3D patterned electrodes composed high-sensitivity flexible piezoresistive sensor for physiological signal monitoring

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Science China(Technological Sciences) 2022年第5期65卷 1169-1178页

作者： hou XiaoJuan ZHONG JiXin HE Jian YANG ChangJun YU junbin MEI LinYu MU JiLiang GENG WenPing Chou XiuJian Science and Technology on Electronic Test and Measurement Laboratory North University of ChinaTaiyuan030051China School of Mechanical Engineering North University of ChinaTaiyuan030051China

The research on flexible pressure sensors has drawn widespread attention in recent years,especially in the fields of health care and intelligent *** practical applications,the sensitivity of sensors directly affects the precision and integrity of weak pressure ***,a pressure sensor with high sensitivity and a wide measurement range composed of porous fiber paper and 3D patterned electrodes is ***-walled carbon nanotubes with excellent conductivity were evenly sprayed on the fiber paper to form the natural spatial conducting networks,while the copper-deposited polydimethylsiloxane films with micropyramids array were used as electrodes and flexible *** conducting paths between electrodes and fibers can be obtained when high-density micro-pyramids fall into the porous structures of the fiber paper under external pressure,thereby promoting the pressure sensor to show an ultra-high sensitivity of 17.65 kPa^(-1)in the pressure range of 0–2 kPa,16 times that of the device without patterned ***,the sensor retains a high sensitivity of 2.06 kPa^(-1)in an ultra-wide measurement range of 150 ***,the sensor can detect various physiological signals,including pulse and voice,while attached to the human *** work provides a novel strategy to significantly improve the sensitivity and measurement range of flexible pressure sensors,as well as demonstrates attractive applications in physiological signal monitoring.

关键词： flexible pressure sensor high sensitivity wide measurement range fiber paper 3D patterned electrodes physiological signal monitoring

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Flexible and wearable BaTiO_(3)/polyacrylonitrile-based piezoelectric sensor for human posture monitoring

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Science China(Technological Sciences) 2022年第4期65卷 858-869页

作者： MU JiLiang XIAN Shuai YU junbin LI ZhengYang ZHAO JuanHong ZHONG JiXin HAN XiaoTao hou XiaoJuan HE Jian Chou XiuJian Science and Technology on Electronic Test and Measurement Laboratory North University of ChinaTaiyuan 030051China

Tactile sensors are essential components of wearable electronic devices,but there are still various problems in terms of energy supply,flexibility and skin *** this paper,we report a self-powered flexible tactile sensor(FTS)mainly composed of a BaTiO_(3)/polyacrylonitrile/Ecoflex(BTO/PAN/Ecoflex)composite film,which can be used for dynamically monitoring human plantar pressure,posture and other physiological and motion *** the synergistic piezoelectric properties of PAN and BTO,the output voltage/current of the BTO/PAN/Ecoflex composite film is 4.5/5.8 times that of the BTO/Ecoflex composite film,with maximum instantaneous power that can reach up to 3.375μ*** the action of external pressure stress,the FTS can reach a normalized voltage sensitivity and voltage linearity of 0.54 V/N and 0.98,***,a human-machine interaction test system is built,which can display the stress changes of human body monitoring parts in real time according to voltage changes and different color *** developed human-machine interaction test system provides a new idea for the diagnosis of flatfoot and other medical ***,this work proposes new FTSs that use a BTO/PAN/Ecoflex composite film with high sensitivity and great output performance,thus exhibiting immense potential application prospects in medical research,personalized recognition and human-machine interaction.

关键词： PAN synergistic piezoelectricity composite film flexible and wearable human posture monitoring

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