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[Clinical efficacy of human biological dressing transplantation for refractory wounds in middle-aged and elderly patients]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Ling X, Zhang P, Zhang T, Li S.
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[Application of limb shortening/re-lengthening technique and <i>in situ</i> tissue regeneration technique in limb salvage for complex lower limb fractures combined with soft tissue defects]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Liu H, Ren Y, Yan X, Wang B, Wang D, Qiao H, Guo J, Zhang Y.   +7 more
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[Rapid determination of five antipyretic analgesics in surface water by online solid phase extraction and ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
He P, Wang LQ, Zhou S, Zhang BF, Jia X, Chi Y, Xu ZQ, Tang W.   +7 more
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[State-of-the-art in peripheral nerve injury diagnosis and therapy]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Sun J, Chen L.
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[Biomechanical study of lumbar vertebra during gait cycle in adolescent idiopathic scoliosis]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Wang Y, Xu P, Wang Y, Liu Y, Xu S, Zhao Z, Li H, Chen X.   +7 more
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[Evaluation of coronary microvascular dysfunction for assessing prognosis of ST-segment elevation acute myocardial infarction following reperfusion therapy: insights from QFR-AMR]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Gao S, Han Z, Zeng Q, Cheng Z, Wang J, Kang P, Wang H, Li M, Hu S.   +8 more
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基于位置压力双闭环控制的码垛机皮带液压张紧系统

工程建设
为解决传统皮带张紧系统调节滞后、动态适应性差的问题，本论文设计了码垛机皮带液压张紧系统，并提出位置-压力双闭环控制策略。针对传统机械张紧系统人工维护频繁、恒张力张紧系统体积大且难适配动态工况的缺陷，结合皮带弹性塑性变形、启停冲击及长距离张力不均的工况痛点，构建了含压力传感器、位移传感器及电比例阀的液压控制结构，通过位移内环与压力外环实现协同控制。运行数据表明，该系统启动10秒内张紧力即可稳定，动态工况下张紧力波动范围为190t-210t，压力变化幅度≤10%，满足设计要求，同时有效提升系统寿命 ...
文泽 于, 嘉卿 葛, 寅 张
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