Results 61 to 70 of about 598 (115)

[Three-dimensional positioning and trajectory tracking of pigeons in large indoor spaces]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Liu X, Liu K, Peng H, Qin Y, Qi X, Wang D, Wen S.   +6 more
europepmc   +1 more source

大跨双层分段式主缆威亚系统施工控制关键技术

Jianzhu Gangjiegou Jinzhan
第七届世界军人运动会开幕式、闭幕式的威亚表演设施工程上跨武汉市体育中心场馆，主要由钢塔、锚锭、主缆3个部分组成，采用双层分段式主缆系统，跨度布置为（40+380+40） m。基于有限元软件对威亚系统施工全过程进行计算分析，确定双层分段式主缆安装方法，为各施工阶段主缆索力、线形调整提供技术支撑，实现了主缆安装线形；同时，通过技术研究，采用装配式设计、工厂化制造、现场预拼保证钢塔拼装精度，利用无人机牵引先导索保障体育馆索膜结构安全，运用横移式循环牵引系统提高主缆安装工效；为工程安全、快速实施提供了技术保障 ...
程建华, 汤黎
doaj  

[Simultaneous screening of pesticides and mycotoxins in dried goji berries and mulberries by QuEChERS-liquid chromatography-quadrupole-time of flight mass spectrometry]. [PDF]

Se Pu
Yin H, Xie YJ, Shi MJ, Wu XQ, Tong KX, Chang QY, Fan CL, Chen H.   +7 more
europepmc   +1 more source

多层土壤结构下垂直接地装置在输电杆塔接地中的应用方法

Dianci bileiqi
针对山岩等高土壤电阻率地区输电线路杆塔接地施工不便、降阻技术经济效益差的问题，本研究提出一种含垂直接地装置的立体式输电杆塔接地方法。该方法利用现阶段大力推广的输电杆塔基础机械化施工技术，在杆塔基础施工的同时在接地射线的固定点位植入一定长度的接地锚栓，构成垂直接地装置，起到降阻增效的作用。文中首先给出含垂直接地装置的立体式输电杆塔接地装置的模型，并研究了考虑火花放电效应时输电杆塔接地装置冲击接地电阻数值计算方法。然后分析了土壤水平分层结构对该立体式输电杆塔接地装置冲击降阻效果的影响 ...
朱子茵, 杨鑫, 焦艺哲, 谢炀, 乐骁文, 刘宇彬   +5 more
doaj  

[Determination of caffeine and taurine in electronic cigarette oil by high performance liquid chromatography- tandem mass spectrometry]. [PDF]

Se Pu
Sun X, Chang QZ, Wang C, Shao WH, Feng F.   +4 more
europepmc   +1 more source

[Determination of 17 bisphenol compounds in human urine by solid supported liquid-liquid extraction-ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Jin Y, Zhang LG, Zhou JX, Ma JJ, Yuan LL, Xiao P, Wang GQ.   +6 more
europepmc   +1 more source

[An unsupervised three-dimensional medical image registration method based on shifted window Transformer and convolutional neural network]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Li Y, Ruan C, Ruan D.
europepmc   +1 more source

[A cephalometric landmark detection method using dual-encoder on X-ray image]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Dai C, Huang C, Xu M, Wang Y.
europepmc   +1 more source

[Design and analysis of human arm pathological tremor simulation system]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
He Z, Liu H, Liu Q, Jiang Y, Zhu Z.
europepmc   +1 more source

[Rapid screening of 111 pesticides and veterinary drugs in livestock and poultry meat by ultra performance liquid chromatography-quadrupole-time of flight mass spectrometry]. [PDF]

Se Pu
Wang YM, Li XT, Chu K, Wang QQ, Wu S, Chen C.   +5 more
europepmc   +1 more source