Results 91 to 100 of about 43,745 (138)
Zhongguo shiyan zhenduanxue目的 探讨冠心病患者微小RNA-126（miR-126）、微小RNA-221（miR-221）、微小RNA-155（miR-155）及外周血T细胞表达对斑块稳定性的影响。方法 选取2019年2月至2020年6月间本院心内科收治的冠心病患者138例，根据血管内超声评价斑块性质，分为稳定斑块组56例，不稳定斑块组82例。另收集同期健康志愿者60例为对照组。实时荧光定量PCR技术检测血浆miR-126、miR-221、miR-155相对表达量；细胞内染色的流式细胞术测定CD4+CD25+Foxp3 ...
齐贵彬 +7 more
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Improving the thermal stability of trans-epoxysuccinate hydrolase. [PDF]
J Zhejiang Univ Sci BBao W +5 more
europepmc +1 more source
[Progress in treatment of unstable atlas fracture]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2020 Zou X +8 more
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[Imaging observation of possible mechanism and stability of type B Hangman's fracture]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiLi H +7 more
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[Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiLing Y +6 more
europepmc +1 more source
[Preliminary study on the influence of the dimensional stability of 3D printed resin master model on the replication accuracy of implant replicas]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiLi X +5 more
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Gaoya dianqi光热发电兼具调峰电源和储能的双重功能，可为新能源电力系统提供转动惯量及阻尼支撑，但其对电力系统稳定性的影响尚不明确。针对光热并网对系统暂态稳定性的影响及其机理问题，首先基于容量加权法建立了光热电站等值模型，然后根据光热电站的低惯量特性，利用扩展等面积法则（extended equal-area criterion，EEAC）分析了惯量降低对系统暂态功角稳定性的影响。研究结果表明，在单机无穷大系统中，光热电站等容量替代火电机组会导致系统惯量降低，系统暂态功角稳定性减弱。最后基于某区域电网 ...
苏志军 +5 more
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[Effects of elastic modulus of the metal block on the condylar-constrained knee prosthesis tibial fixation stability]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiZhang Y +6 more
europepmc +1 more source
Shuitu Baochi Xuebao[目的] 为探究金沙江干热河谷冲沟系统土壤团聚体结构对优先路径形成的影响,深化对冲沟系统土壤水分和溶质运移的认识。[方法] 选取金沙江干热河谷活跃和稳定冲沟不同部位(集水区、沟头、沟床和沟底)为研究对象,基于染色示踪和形态学图像解析技术,提取土壤水平剖面优先路径。采用RDA、灰色关联和耦合协调度等分析方法探究土壤团聚体结构与优先路径的关系。[结果] (1)稳定冲沟土壤团聚体稳定性高于活跃冲沟。除个别土层外,活跃冲沟＞0.25 mm机械稳定性团聚体(DR0.25)、水稳定性团聚体(WR0.25 ...
李珠宇 +5 more
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