Results 121 to 130 of about 184,411 (156)

[Application of Kartogenin in cartilage tissue engineering]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Jiang J, Zhang S, Lu W.
europepmc   +1 more source

一种消除群速度色散的慢光效应光子晶体波导结构

本发明公开了一种消除群速度色散的慢光效应光子晶体波导结构，包括纵向结构及横向结构，其中，纵向结构为一种空气桥多层结构，从顶层到底层依次为空气层/半导体材料层/空气层/衬底材料层；横向结构是一光子晶体波导，该光子晶体波导设计在纵向结构的半导体材料层上，包括正色散波导和负色散波导。本发明提供的这种消除群速度色散的慢光效应光子晶体波导结构，通过调整两个波导宽度及负色散中间缺陷孔半径来实现模式匹配及色散补偿，对接位置对波导损耗至关重要，既保证了慢光所需要的群时延，又保证了净色散尽量小 ...
邢名欣, 张冶金, 陈微, 周文君, 郑婉华, 刘安金   +5 more
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[Determination of eight per- and polyfluoroalkyl substances in seawater using dispersive membrane extraction-ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Ren Z, Ma JP, Liu YJ, Zhang L, Wu GG, Li S.   +5 more
europepmc   +1 more source

[Type Ⅱ first branchial cleft anomaly with parotid fistula： a case report and literature review]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Wang T, Zhou Z, Shi G.
europepmc   +1 more source

[Imaging Diagnosis of Ischemic Stroke Through Multiparametric Magnetic Resonance Angiography Enhanced by NaGdF₄ Nanoparticles]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Wu J, Ma Y, Yue S, Zhang X, Li W, Zhang N.   +5 more
europepmc   +1 more source

半导体激光照明光源

 本发明公开了一种半导体激光照明光源。该半导体激光光源包括：半导体激光器,用于产生激光输出；光束准直模块,位于半导体激光器的光路后端,用于将半导体激光器输出激光的进行平行和准直；光斑匀化模块,位于光束准直模块的光路后端,用于将光束准直模块输出的激光的横截面相互垂直的两个方向的光束质量进行均衡,实现光束能量的均匀化重组；耦合输出模块,位于光斑匀化模块的光路后端,用于将光斑匀化模块输出的均匀化重组后的激光耦合输出。本发明半导体激光照明光源具有自适应性强,结构稳定、性能可靠等特点 ...
王新伟, 石晓光, 周燕, 杨嘉琦
core  

[Expert consensus in Southwest China on the application of botulinum toxin type A in upper and mid-facial aesthetics]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Sichuan Provincial Medical Association Medical Aesthetics and Cosmetology Specialty Committee.
europepmc   +1 more source

[Molecularly imprinted polymers： novel green preparation methods and cutting-edge applications review]. [PDF]

Se Pu
Li F, Jia B, Hu Q, He X, Chen L, Zhang Y.   +5 more
europepmc   +1 more source

[Finite element analysis of skeletal injury mechanisms in adult standing positions with both feet landed on the ground]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Yuan H, Gao S, Wei Z.
europepmc   +1 more source

[Differential diagnosis of BPPV and CPPV and treatment of refractory BPPV]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Kong W, Chen T, Wang L, Yu D, Dai Q, Chen G, Wang J, Zeng X, Xing J, Lei Y, Sun H.   +10 more
europepmc   +1 more source