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, the antiferroelectric phase zone gets broader and the diffuse coefficient increases. Key words: sodium bismuth titanate; lead-free piezoelectric ceramics;piezoelectric properties; perovskites structure......
遥科学实验台黄玉明,李庚田摘 要:本文讨论了遥科学的起源及其相关技术,特别是遥科学与空间商业化的密切关系;描述了遥科学的基本内容和遥科学实验台的基本结构;在综述国外研究现状的基础上,阐明了中国开展遥科学研究的意义,可行性和技术途径.关键词:......
Competition between Band Filling and Steric Effect in Ordered Double Perovskites Sr2-xLaxMnMoO6 Ji Xiangling1,Zhao Junchai1,Tian Shizhe1,Qiao Congde1,Jiang Bingzheng1 (1.State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China) Abstract:The ordered double perovskites, Sr2-xLaxMnMoO6, were prepared......
Ba3La2Ti2Ta2O15:A New Microwave Dielectricof A5B4O15-type Cation-deficient Perovskites胡长征摘 要:The synthesis,structure and properties of a new A 5B 4O 15-type cation-deficient perovskite Ba 3 La 2 Ti 2 Ta 2 O 15 were discribed.The compound was prepared by the conventional solid-state reaction route. The phase and structure of the ceramics were......
Electrical,Magnetic and Catalytic Investigations on Some Manganite Perovskites Prepared by Combustion MethodR.G.Shetkar,A.V.SalkerDepartment of Chemistry,Goa University,Goa 403206,India摘 要:perovskites on solid state and catalytic properties......
Comparative study of La1-xCexMnO3+δ perovskites and Mn-Ce mixed oxides for NO catalytic oxidationBaohuai Zhao1,2,Rui Ran3,Liu Yang1,Xiaodong Wu4,Zhichun Si5,Duan Weng31. Institute of Engineering... School at Shenzhen,Tsinghua University摘 要:A series of La1-xCexMnO3+δ(x=D,0.05,0.1,0.2,and 0.3) perovskites and Mn-Ce mixed oxides were prepared.Their physico......
Comparative study of La1-xCexMnO3+δ perovskites and Mn-Ce mixed oxides for NO catalytic oxidationBaohuai Zhao1,2,Rui Ran3,Liu Yang1,Xiaodong Wu4,Zhichun Si5,Duan Weng31. Institute of Engineering... School at Shenzhen,Tsinghua University摘 要:A series of La1-xCexMnO3+δ(x=D,0.05,0.1,0.2,and 0.3) perovskites and Mn-Ce mixed oxides were prepared.Their physico......
矿区变电站"三遥"RTU的研制 孟祥忠1,张冬梅2,曹娜1 (1.山东矿业学院济南分院;2.青岛建筑工程学院) 摘要:根据煤矿生产调度系统的发展,提出了矿区变电站遥测,遥信,遥控,即"三遥"RTU系统的设计思想,并将其付诸实践,可有效地节能降耗,提高矿山电网的安全运行水平,缩短故障时间,减小故障范围. 关键词:变电站; 远动; 微机监控; 三遥; [全文内容正在添加中] ......
基于Internet机器人遥操作系统的实现 赵杰1,何晋2 (1.哈尔滨工业大学,机器人研究所,黑龙江,哈尔滨,150001;2.云南民族大学,物电学院,云南,昆明,650031) 摘要:借助于Internet资源的诸多便利条件,为建立基于Internet的机器人遥操作系统实验平台,构建了双向力反馈遥操作机器人系统的框架结构,系统设计着重考虑了客户端,WEB服务器,机器人服务器等之间的接口和实现方法,给出了各个模块的具体实现方法,实现了系统的遥操作.对所设计的系统进行了多项测试,测试结果表明系统达到了设计的要求.图3,参8. 关键词:Internet; 遥操作机器人; WEB服务器; ......
主从式遥操作血管介入机器人曹彤1,王栋1,刘达2,曾玉祥11. 北京科技大学机械工程学院2. 北京航空航天大学机器人所摘 要:传统的血管介入手术需要医生徒手操控导管,存在医生受辐射和人为因素影响手术质量等弊端.针对该问题,设计了用于辅助医生手术的主从式遥操作血管介入机器人.根据临床手术的要求,基于模块化理念,分别对机器人的从端推进机构,主端操控装置进行了结构设计,为主从模式的实现做了相关的软,硬件开发;对机器人样机进行了必要的性能测试,证实了该机器人具有小于1 mm的运动控制精度和0.44 ms的主从运动实......