Results 131 to 140 of about 4,821 (166)

基于改进灰狼算法的接地网腐蚀诊断方法

Dianci bileiqi
接地网极易受土壤中的因素影响而发生腐蚀，电网络分析法是接地网腐蚀诊断中普遍采用的方法，其存在腐蚀诊断方程求解的高欠定性和寻优算法的不准确、不收敛等问题。本研究将一种改进灰狼算法(OLGWO)应用于腐蚀诊断方程的求解，通过引入反向学习和莱维飞行策略来改善传统灰狼优化算法中存在的初始种群分布不均、容易陷入局部最优等问题，并给出了接地网腐蚀检测的具体流程。通过对模拟接地网的腐蚀诊断结果表明，改进灰狼算法的收敛速度与寻优精度均优于传统优化算法，其诊断最大偏差不超过±5%；再将其应用于贵州某水电站接地网腐蚀诊断中，
李友才, 李晓龙, 罗周维, 彭威龙, 谢炀, 杨鑫   +5 more
doaj  

[Clinical observation of free palmaris longus tendon graft reconstruction in treatment of gouty tophus erosion lesions in flexor tendon of wrist and hand]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wang G, Lu C, Qu Z, Zhang Y, Bi B, Gao F, Zhang Z, Pan Y, Zhu E, Huang H.   +9 more
europepmc   +1 more source

[Automatic measurement of acetabular cup anteversion angle using an accurate recognition technology based on improved Otsu algorithm and feature point]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Liu Q, Ma Y, Wu B, Zhang Y, Qi J, Mei Y.
europepmc   +1 more source

[Structural design and evaluation of bone remodeling effect of fracture internal fixation implants with time-varying stiffness]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Sun H, Ding X, Xu S, Duan P, Xiong M, Zhang H.   +5 more
europepmc   +1 more source

Transtext(e)s Transcultures è,è - Journal of Global Cultural Studies

Cléo Radar, 2009
openaire   +1 more source

[Establishment of rabbit model of benign circumferential esophageal stricture]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Meng L, Huang Y, Yan X, Wang Y.
europepmc   +1 more source

[Identification of conservation and restoration materials for iron relics through ultraviolet-induced visible luminescence imaging and pyrolysis-gas chromatography/mass spectrometry]. [PDF]

Se Pu
Yang Q, Ding L, Li ZH, Zhang R, Wei Y, Chen Y.   +5 more
europepmc   +1 more source

[Complications of upper gastrointestinal foreign body in children and related risk factors]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi, 2020
Wang YS, Zhang J, Li XQ, Yu ZD, Zhou F.
europepmc   +1 more source

[Advances in Novel Disinfection Technologies for Biofilm-Associated Nosocomial Infections]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Ke D, Tan X, Chen K, Xue X, An N, Ye K, Zhang X, Li Y, Zeng J.   +8 more
europepmc   +1 more source

Effect of laser process parameters on the pores, surface roughness, and hardness of laser selective melting of dental cobalt-chrome alloys. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Sang L, Yan J, Li N, Xin C, Wang Q, Liu C.   +5 more
europepmc   +1 more source