Results 101 to 110 of about 324,535 (152)

[Arterial safe zones for acetabular screw placement in total hip arthroplasty: sex-based differences and individualized strategies]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Huan R, Guo S, Zhang J, Liu N.
europepmc   +1 more source

工业园区产业链接效益评价——以化工冶金工业园区为例

, 2015
产业链接构建是工业园区发展的重要途径,直接影响工业园区资源、环境和经济效益。本研究针对化工冶金等以过程工业为主的工业园区,构建产业链接构建对工业园区效益影响评价方法。在分析工业园区产业体系整体结构的基础上,重点分析因产业链接构建所产生的物质流、能量流变化,并分析其对整个产业体系价值流的影响,并通过建立产业链接效益分析指标体系予以量化,以此分析产业链接构建对园区的效益和影响,从中识别出影响园区发展的关键链接。利用该方法对化工冶金类工业园区进行案例分析,为园区未来发展提供有助于优化产业链结构 ...
李强, 李会泉, 张文娟
core  

[Study on influence of tooth-supported osteotomy guide plates on the accuracy of mandibular segmental resection and its surgical outcome]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ma H, Liang K, Qiu R, Liu L.
europepmc   +1 more source

[Digital measurement and analysis of anatomical characteristics of protrusive and intercuspal position occlusal contacts in maxillary incisors]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Shao L, Ma W, Chen Y, Ding Q, Zhang L.
europepmc   +1 more source

[Three-dimensional finite element analysis of the cantilever fixed bridge restoration for mandibular central incisors supported by narrow-diameter implants]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Zhou X, Gong Y, Peng W, Fu G.
europepmc   +1 more source

[Short-term effectiveness study and finite element analysis of high tibial osteotomy for knee varus with medial meniscus posterior root tear in middle aged and older populations]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Tao Y, Liu W, Wang Y, Fan J.
europepmc   +1 more source

梯度材料的黏附接触封闭解

, 2010
本文给出了半径为R的刚性球体与梯度材料弹性半空间黏附接触的封闭解。梯度材料的杨氏模量随深度呈幂次变化E=E0(z/c0)k,考虑接触体表面力的作用,最终得到了外加载荷与接触半径的显式关系,及拉脱时的临界外力及临界半径的解析表达式。当k为0时,结果则为著名的JKR理论解;当k=1时,则得到Gibson材料的黏附接触封闭解 ...
陈少华, 闫聪
core  

[Challenges and clinical strategies for endodontic microsurgery in the posterior maxillary region]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Zhang C, Huang X, Hou B.
europepmc   +1 more source

基于边-边接触的三维离散数值计算模型

, 2002
采用边 -边 (面 -面 )接触离散元模型 ,研制了三维离散元计算程序 .计算了集中载荷作用下弹性基础的沉降和应力场 ,通过与解析解的比较 ,基本验证了该程序的可靠性 .当单元之间的位移和变形相对于单元本身的尺度较小时 ,采用边 -边接触模型研究不连续介质问题和颗粒散体问题比角 ...
李世海, 郭易圆
core  

[Research progress on the mechanism of auditory center remodeling and clinical intervention strategies in presbycusis]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Chen G, Li Y, Wu J, Yang J, Li Y, Zhou L.   +5 more
europepmc   +1 more source