[Risks, mechanisms, and prevention strategies for cerebrovascular diseases in lunar astronauts under deep]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanTang L +7 more
europepmc +1 more source
Dianci bileiqi为解决谐振接地系统单相接地故障对故障初始角为零以及接地电阻为高阻的故障线路识别效果差的问题，提出一种基于主成分分析与粒子群算法优化支持向量机（PCA-PSO-SVM）的选线方法。该方法通过Matlab/Simulink对小电流接地系统进行仿真，采集瞬时零序功率数据，将数据输入PCA-PSO-SVM模型中进行训练与测试，并将测试结果与单一的支持向量机模型以及经粒子群优化后的支持向量机模型进行对比，结果表明PCA-PSO-SVM模型有着更好的选线准确度与选线效率。
聂远航 +4 more
doaj
[Exploration of the "Hainan Model" in the construction of specialized wound repair discipline]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiCheng SW.
europepmc +1 more source
[Medical treatment standards for emergency burn wounded (2025 edition)]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiNational Health Commission Of The People's Republic Of China.
europepmc +1 more source
[Application of P1 response threshold of cortical auditory evoked potential in rehabilitation evaluation of young children with cochlear implant]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za ZhiJi H +6 more
europepmc +1 more source
[Construction of the evaluation index system for nursing quality management in outpatient dental clinics based on the structure-process-outcome model]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiWei J +7 more
europepmc +1 more source
[Archeological Research on Third Molar Degeneration]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanHuang H, Zhou J, Zhou X.
europepmc +1 more source
Dianci bileiqi为更高效、更准确地进行接地网故障诊断，本文提出基于模态路径层析法的接地网故障区域成像诊断模型。首先，将接地网拓扑结构变换成只含可及节点的模态路径网络图，依据连接支路数选择网络枢纽点，测量与其相连支路阻值并计算相对误差，选取相对误差最大点为下一层诊断节点，如此逐层剖析确定腐蚀区域；然后在该区域采用电阻抗成像技术（EIT）进行电导率二维成像；接着针对EIT技术成像精度受电导率初值分布影响较大的问题，提出采用改进的登山队优化算法（IMTBO）对电导率进行初值寻优 ...
常红阳, 王昕, 唐浩哲, 江恒
doaj
[Clinical manifestation analysis of the eruption failure of deciduous molars]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiWang M +6 more
europepmc +1 more source
Dianci bileiqi变电站的接地网的主要作用是为故障电流提供流散的通道，完好的接地网是保证电力系统正常运行以及变电站中的设备和工作人员安全性的重要保证。本研究通过国际知名的电力系统接地分析软件CDEGS来对存在季节性冻土的某110 kV变电站的接地网的安全参数进行研究，分析了土壤冻结状态下的接地网的接地电阻、地电位升高及分流系数等安全性能参数的变化规律，旨在实现对存在季节性冻土变电站接地网安全和优化措施的进行多指标的评价与分析。研究结果表明，当冰冻层增大至接地网埋深以下时，地网的接地电阻、分流系数及接触、跨步电压会逐渐增大，
张文龙 +6 more
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