Results 101 to 110 of about 1,050,672 (147)

[From China to the world: the internationalization path and prospects of a discipline system for wound repair with Chinese characteristics]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Fu XB.
europepmc   +1 more source

新型滑动摩擦机构的试验研究与数值模拟

Jianzhu Gangjiegou Jinzhan
针对现有滑动摩擦复位机构变形能力与自复位性能相互制约的矛盾，本文将碟簧组与三段齿槽板构造相结合，提出了一种新型滑动摩擦复位机构（slip friction device， SFD）。文中阐述了该SFD的基本构造与工作机理，建立了其滞回力学模型，对比了三段齿槽与双段齿槽两种构造的力学性能差异，明确了SFD的关键设计参数。开展了概念验证拟静力试验，试验结果与理论模型、有限元数值模拟结果均吻合良好。结合理论分析与试验结果可知，合理选取齿槽斜面倾角与摩擦系数，可使SFD形成稳定的旗帜形滞回曲线 ...
黎燕文, 张文龙, 余希洋
doaj  

[Staged comprehensive limb reconstruction strategy and effectiveness analysis for severe open lower leg injury]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Yin L, Du Z, Duan W, Liu J, Zhao Z, Zhou M, Li X, Liu X, Zhang J, Fan H, Lin Y, Wen Y.   +11 more
europepmc   +1 more source

[Activation of the CaMKKβ/AMPK/HIF-1α signaling pathway promotes angiogenesis in endometriosis by regulating mitophagy]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Chen Y, Yue B, Wu Q, Mao H, Ji X, Chu C, Chen L, Zhang Y, Li B, Zhang X, Feng P.   +10 more
europepmc   +1 more source

黑龙滩水库消落带植被恢复模式对土壤水稳性团聚体组成及其稳定性的影响

Shuitu Baochi Xuebao
[目的] 为阐明水库消落带不同植被恢复模式对土壤水稳性团聚体组成及其稳定性的影响。[方法] 以川中丘陵区黑龙滩水库消落带人工恢复与自然恢复植被下的土壤为研究对象,利用湿筛法测定分析土壤水稳性团聚体组成特征及其稳定性指标。[结果] 消落带土壤＞0.25 mm水稳性大团聚体含量与未淹水对照相比降低4.21%,其中,自然恢复植被下土壤水稳性大团聚体含量较对照下降12.27%,人工恢复植被下大团聚体含量较对照增加3.84%;不同植被恢复模式下土壤水稳性团聚体组成差异显著(p＜0.05 ...
白芹菲, 王艳琪, 鲍玉海, 贺秀斌, 罗鹏, 韦杰   +5 more
doaj  

[Short-term clinical outcomes of complete dentures fabricated by conventional and CAD/CAM milling techniques: A self-controlled study with randomized wearing sequence]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Cao H, Qin K, Zhang X, Chen H, Sun Y, Bao X, Zhou Y.   +6 more
europepmc   +1 more source

[A case of neonatal congenital myasthenic syndrome caused by <i>MUSK</i> gene variants]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Zhang XL, Sun Y.
europepmc   +1 more source

具有复位功能的静态随机存储单元

一种具有复位功能的静态随机存储单元，其包括：一第一反相器，其包括第一驱动NMOS晶体管及第一负载PMOS晶体管；一第二反相器，其包括第二驱动NMOS晶体管及第二负载PMOS晶体管；该第一反相器的输出端与该第二反相器的输入端相连，该第二反相器的输出端与该第一反相器的输入端相连，由此构成交叉耦合的锁存器，该锁存器连接在正电源电压和电源地之间；一存取NMOS晶体管，其漏极与第一反相器的输出端相连，其栅极与字线连接，其源极与位线连接；一复位上拉PMOS晶体管，其漏极与第二反相器的输出端相连，其栅极连接置数控制线，
韩小炜, 赵凯, 吴利华, 于芳
core  

[Current applications and future perspectives of automation technologies and devices in oral diagnosis and treatment]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Zhang X, Cao H, Zhou Y.
europepmc   +1 more source

[Research advances in nanobiotechnology targeting reactive oxygen species for radiation injury repair]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Guo C, Tang Q, Zhang J, Ran X, Huang Y, He Y.   +5 more
europepmc   +1 more source