Zhendong Ceshi yu Zhenduan为降低架空导线振动测试系统的复杂度，减小在线传感器带来的负载效应，笔者设计了一种基于单目视觉原理的图像分析法。首先，以普通消费级相机为测试工具，以图像模板匹配目标定位技术为核心，开发架空输电导线面内振动位移的非接触测量方法；其次，开展导线模型在局部风场作用下沿跨多点面内位移时程信号测试实验，对导线面内振动位移与典型测点频谱规律进行详细分析；最后，讨论在局部涡激载荷作用下，导线模型面内振动位移时空演化规律与频谱特性。结果表明：该方法具有操作简单便捷、成本低廉等优势 ...
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Gaoya dianqi针对输电导线微风振动下产生的动弯应变计算误差较大的问题，基于三维数字图像相关（3D-DIC）技术对输电导线线夹出口处动弯应变进行测量试验，改进使用末端挠度A89计算动弯应变的方法。采用覆盖式贴涂法解决输电导线股间间隙应变计算困难的问题，对3D-DIC设备的准确性以及其测量输电导线表面应变的可行性进行了试验验证。以LGJ-120/20为例，通过激振系统和导线张力试验系统模拟微风振动工况，利用3D-DIC技术揭示了导线微风振动下线夹出口处动弯应变分布规律，并与公式计算值进行对比，表明公式计算值存在较大误差 ...
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[Diabetic Charcot neuroarthropathy initially misdiagnosed as rheumatoid arthritis and gout: A case report]. [PDF]
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Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiChinese Burn Association +2 more
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[A high temporal resolution dynamic T<sub>2</sub>*W imaging study based on step oxygen stimulation of rat kidneys]. [PDF]
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