Results 101 to 110 of about 1,086,884 (143)

Novel multi-component synergistic bioink that balances biocompatibility and mechanical strength for cartilage regeneration. [PDF]

J Zhejiang Univ Sci B
Ma Z, Jia W, Wang X, Cheng R, Han L, Li M, Yang X, Sang S.   +7 more
europepmc   +1 more source

[Effect of modified hot-etching treatment on the mechanical properties of zirconia and zirconia/resin bond strength]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Yang X, Wu Y, Lv P.
europepmc   +1 more source

微机电系统机械组元可靠性评估的测试装置及方法

一种微机电系统机械组元可靠性评估的测试装置，包括：一光学测量单元，用于测量微机电系统机械组元的轮廓曲线，获得被测微机电系统机械组元在失效前后的三维形貌信息或动态位移信息；一环境腔室，用于放置被测微机电系统机械组元，所述各种环境条件包括真空、气压、气氛、温度和湿度；一XY工作台，环境腔室放置在XY工作台上，可跟随XY工作台在水平面内移动，环境腔室的质量低于XY工作台正常工作的载荷限制；一环境控制与测量单元，保证在环境腔室内实现所需的各种环境条件并测量相应的环境参数；一数据采集和控制单元，用于控制XY工作台，
周威, 杨富华, 周美强, 朱银芳, 杨晋玲   +4 more
core  

含锂矿物机械化学强化提锂工艺

, 2019
采用机械化学活化方法,在机械活化过程中用K2SO4为活化添加剂,强化锂云母中惰性Li-O配位结构活化转型,通过温和稀酸浸出高效分离锂,考察了活化过程添加剂用量、球磨时间和球料比及浸出条件如酸浓度、液固比、搅拌速度、温度和时间等对锂回收率的影响,确定了最佳工艺条件,讨论了反应过程机理。结果表明,机械化学活化强化破坏云母片层结构中的Si-O-K结构,降低了Si-O配位结构对Li-O配位结构的牵制力,导致Li-O键强减弱,反应活性增加。在最优条件下(精矿与K2SO4质量比5:1、球磨机转速500 r/min ...
何明明, 郑晓洪, 曹宏斌, 赵春龙, 尤海侠, 孙峙   +5 more
core  

[Applications and challenges of ultra-high molecular weight polyethylene fibers in minimally invasive medical devices]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Shi S, Shi Y, Zhu J, Shi X, Cui N, Cui H, Zhang Z, Hou Z, Wu W, Wu P.   +9 more
europepmc   +1 more source

[Research progress on clinical transformation of Piezo1 in osteoarthritis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wang Y, Wei N, Zheng Z.
europepmc   +1 more source

[Research progress of Pendulum Leg Swing Therapy in treatment of knee osteoarthritis]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Jiang N, Zhao J, Zhao J, Zhang H, Tian A, Ma X.   +5 more
europepmc   +1 more source

算筹、算法与数学机械化

, 1998
本文从现代计算机技术的角度来分析中国传统数学机械化的“硬件系统”和“软件系统”。重点论述算筹是中国传统数学机械化的物质基础，优越的计算工具和十进位置值制记数法为数学机械化提供了得天独厚的条件；而制定算法是数学的根本，也可以说是中华民族的价值观在数学中的表现 ...
傅海伦
core  

[Research progress and applications of biologically derived materials in scleral reconstruction]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Guo M, Chen H, He S, Xie H, Li X.
europepmc   +1 more source

[Functional requirements and research advances of antimicrobial hydrogels for combat trauma wound repair]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Wu B, Wei G.
europepmc   +1 more source