[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 BanShao L, Ma W, Chen Y, Ding Q, Zhang L.
europepmc +1 more source
A Study for Friction Behavior of Elastic-Plastic
, 2017 工业化中表面相互作用的重要性不言而喻，而工程中的任何接触表面都不会是绝对光滑的，粗糙表面接触研究具有重要的应用价值。表面接触过程中不可避免存在塑性变形，塑性变形与摩擦系数的关系是本文的研究目的。 本文结合接触力学及有限单元法理论知识，分析了界面在法向载荷及切向载荷组合加载作用下发生滑动的机理，并首次给出了塑性程度、界面强度与摩擦系数之间的关系。主要研究工作及研究成果如下： 1.材料塑性越大，系统摩擦系数越小；与界面摩擦系数相比，系统摩擦系数在塑性的影响下大大降低且逐渐趋于稳定，达到统一上限。 2 ...
宦金杉
core
[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 ZhiTao Y, Liu W, Wang Y, Fan J.
europepmc +1 more source
, 2014 基于Schuster检验及Permutation检验方法,对喀什-乌恰交汇区地震活动受固体潮触发情况进行日尺度及月尺度检验.其中日尺度分别选取引潮力南北分量、东西分量及潮汐体应力作为潮汐曲线.研究结果显示,该地区地震活动均较多的发生于3种潮汐的最大值(相位0°)附近,优势发震相位分别为-5.86°、6.60°以及-15.52°,且发生地震的频次随潮汐力的增大而增加;利用3种潮汐曲线(引潮力日尺度南北分量、东西分量以及潮汐体应力)对所有地震进行Schuster检验所得Ps值分别为10.52％、2.40 ...
Song Jin +15 more
core
[Challenges and clinical strategies for endodontic microsurgery in the posterior maxillary region]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiZhang C, Huang X, Hou B.
europepmc +1 more source
[Fiber photometry-based analysis of transcranial magneto-acoustic electrical stimulation effects on synaptic plasticity in the hippocampal CA1 region of APP/PS1 mice]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiMi J, Zhang S, Lu X, Xu Y, Xu G.
europepmc +1 more source
[Considerations for soft tissue management in endodontic microsurgery]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiHuang J, Gu S.
europepmc +1 more source
一种低阻p-GaN欧姆接触电极制备方法，该方法包括：取一衬底，在衬底上生长一器件外延层；对器件外延层进行表面清洗；采用腐蚀剂将器件外延层表面的氧化物去除；光刻，将光刻板上的图形转移到器件外延层上；在器件外延层的表面生长透明电极层；剥离、退火，使透明电极层发生反应，在透明电极层的表面形成高阻层；将发生反应的透明电极层表面的高阻层去除 ...
颜庭静, 曹青, 陈良惠, 林孟喆
core
[Discussion on the design approach and results evaluation key points of repeated exposure systemic toxicity tests for absorbable medical devices]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiFan C +5 more
europepmc +1 more source
[Musculoskeletal biomechanical analysis of the three-dimensional gastrocnemius and soleus muscles]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiTang Z, Xu J, Jin Z, Li J.
europepmc +1 more source