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Guangtongxin yanjiu, 1981 本文提出一种载波主群信号用的编码器和译码器,编码速率为34368kb/s,编码精度10毕特,编码方式为逐次比较型。本电路的特点是用ECL型线接收器作求和放大器,用ECL型D触发器作判别电路,译码器和局部译码器中逻辑电路和记忆电路用D触发器代替或/或非门电路。这样,可使电路组成简单、转换速度快、编码精度高。本方案中除恒流源开关电路外全部采用数字集成电路,从而使电路的装配和调测大为简化。
菅雨生
doaj
Gaoya dianqi, 1959 导电系统是许多电器中极及其重要的组成部分。例如高压断路器带接触系统及周围绝缘的主导电回路(图1—a),隔离开关带接触系统的裸露导电回路(1—a),接触器与低压断路器的接触系统(图1—b),高压电流互感器一次导电回路(图1—r)等等。由于各种具体电器结构散热情况复杂程度的不同,正确地考虑这些情况,分析计算发热与散热过程,对合理选择导电部分尺寸及结构佈置 ...
王士和
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Dianci bileiqi, 2018 风力发电机遭受雷击后,会有部分雷电流通过主轴承泄散,可能会对轴承和发电机造成损害,因此做好主轴承的防雷保护至关重要。利用EMTP软件搭建风机叶片、塔筒、接地体和轴承模型,讨论单独采用火花间隙和增加滑动接触器对于主轴承防护的效果,分析雷电流幅值、波头时间和接地电阻对于二者分流比的影响。分析结果表明:单独采用火花间隙防护时,流经轴承的雷电流幅值仍然较高;增加滑动接触器后几乎全部雷电流经由火花间隙和滑动接触器泄散。火花间隙和滑动接触器的分流比随着雷电流幅值的增加而增加,随着波头时间的增加而减小 ...
梁明亮, 董黎生
doaj
[Master manipulator of vascular intervention surgical robot based on haptic feedback]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiHan G, Sun Z, Tang X.
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[Research progress on elbow joint rehabilitation robots]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanLi M, Xu F, Wang D, Xu J.
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[Reconstruction of superficial organs: a leap from structural restoration to functional rehabilitation]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiZan T, Gao YS.
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[The application of surgical robots in head and neck tumors]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiHuang X +23 more
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[Closed-loop spinal neural interface combined with rehabilitation training for incomplete spinal cord injury: a case report]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanFeng C, Zhu J, Zhang J, Xu K.
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[Progress in the application of robotic technology in thyroid surgery]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiWu D +6 more
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