Results 111 to 120 of about 7,370 (165)

[β‑blockers after percutaneous coronary intervention does not reduce risks of all-cause mortality or major adverse cardiovascular events in patients with stable coronary artery disease]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Gao X, Xiao J, Feng N, Guo C, Cao L, Zhang C, Zhang Y, Han T.   +7 more
europepmc   +1 more source

[A high temporal resolution dynamic T₂*W imaging study based on step oxygen stimulation of rat kidneys]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Sun S, Tao Q, Zhao K, Hu Q, Feng Y.
europepmc   +1 more source

基于CDEGS的土壤冻结状态下接地网安全性能研究

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, 李承阳, 张玉东, 吴金玲, 孟垂懿, 原欣, 黄硕   +6 more
doaj  

[Research progress on the early warning of heart failure based on remote dynamic monitoring technology]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Shi Y, Li M, Li L, Yan W, Cao D, Zhang Z, Yan M.   +6 more
europepmc   +1 more source

基于CDEGS土壤冻结状态下接地网安全性能研究

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1 10kV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, 李承阳, 张玉东, 吴金玲, 孟垂懿, 原欣, 黄硕   +6 more
doaj  

[Relationship Between Neonatal Outcomes and Changes in Serum Platelet-Activating Factor, Fibulin-3, and Umbilical Artery Blood Flow During Late Pregnancy in Pregnant Women With Gestational Hypertension]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Sun Y, Zhang H, Sun L.
europepmc   +1 more source

[A signal sensing system for monitoring the movement of human respiratory muscle based on the thin-film varistor]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Yuan Y, Zhang Z, Xie L, Huang H, Liu W.
europepmc   +1 more source

[Treatment options and research progress of proximal tibial extra-articular fractures]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhang Y, Zhang Q, Lin Y, Fan Y.
europepmc   +1 more source

[Management of accidental tooth root displacement into the mandibular canal during tooth extraction]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Su L, Zhao J.
europepmc   +1 more source

[Bayesian network analysis of harsh parenting, experiential avoidance, and adolescent short video addiction risk]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Lyu LH, Jiang JJ, An XL, Guan CB, Yang H, Hao Y.   +5 more
europepmc   +1 more source