Results 51 to 60 of about 22,130 (97)

[Trends in burden of osteoporosis in China from 1990 to 2023 and analysis of epidemiological factors]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wu Y   +5 more
europepmc   +1 more source

高土壤电阻率山区输电管廊接地特性研究

open access: yesDianci bileiqi
管廊输电在解决新能源外送难题中具有重要意义,其接地系统关系到设备安全运行。本研究使用CDEGS建模,系统分析了土壤电阻率、管廊长度及贯通地线与主结构钢筋的跨接距离对接地系统电气特性的影响。结果表明,土壤电阻率升高导致接地阻抗线性增加,在短管廊中增速更快;管廊长度增加可逐渐降低接地阻抗,但当管廊长度超过4 km后,降阻效果不再明显;缩短贯通地线与主结构钢筋的跨接距离能有效降低接地阻抗,其中100~125 m的跨接距离较适宜。综合对比管廊人工与盾构接地系统的电气特性,发现在高土壤电阻率长距离输电环境下 ...
范荣全   +5 more
doaj  

[Chinese expert consensus on anterior cruciate ligament reconstruction using the over-the-top technique (2025 edition)]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
The Consensus Formulation Group For Anterior Cruciate Ligament Reconstruction Using The Over-The-Top Technique   +2 more
europepmc   +1 more source

[Effects of cold atmosphere plasma treatment on the biological behavior of human gingival fibroblasts]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Zheng M   +7 more
europepmc   +1 more source

[Advances in targeted therapies for chronic spontaneous urticaria]. [PDF]

open access: yesZhejiang Da Xue Xue Bao Yi Xue Ban
Zhou L, Hu C, Wang S, Zhang R.
europepmc   +1 more source

[Research progress of tibial tunnel positioning techniques in posterior cruciate ligament reconstruction]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li R, Liao Y, Guo F, Chen Q, Li S, He C.
europepmc   +1 more source

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