Results 111 to 120 of about 333,253 (143)

[Progress and future prospects of robot-assisted total hip arthroplasty]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Cai L, Gui Y, Kong X, Chai W.
europepmc   +1 more source

[Research on in-vivo electron paramagnetic resonance spectrum classification and radiation dose prediction based on machine learning]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Xiong G   +8 more
europepmc   +1 more source

单纵模双波长环形腔可调谐光生微波源

open access: yes
一种单纵模双波长环形腔可调谐光生微波源,包括一半导体泵浦源;一波分复用器的第一端与半导体泵源连接;一正交可调谐单纵模双波长相移光纤光栅的一端与波分复用器的第二端连接;一掺铒光纤,该掺铒光纤的一端与正交可调谐单纵模双波长相移光纤光栅的另一端连接;一隔离器,该隔离器的输入端与掺铒光纤的另一端连接;一环行器,该环行器的第一端口与隔离器的输出端连接;一布拉格光栅,该布拉格光栅与环行器第二端口连接;一耦合器,该耦合器的第一端与环行器的第三端口连接,该耦合器的第二端连接与波分复用器的第三端连接;一偏振控制器 ...
王礼贤   +6 more
core  

[Advances in the assessment and management of voice disorders]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Xu W.
europepmc   +1 more source

[Clinical practice guidelines for pediatric open laryngotracheoplasty(2026)]. [PDF]

open access: yesLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Li X   +23 more
europepmc   +1 more source

紫外激光干涉条纹的辅助检测装置及方法

open access: yes
 本发明公开了一种紫外激光干涉条纹的辅助检测装置及方法。该辅助检测装置在紫外激光全息光刻系统中增加了一套可见性的激光光路,在确定可见激光波长和紫外激光波长的关系后,通过观察可见激光的干涉条纹来对紫外激光干涉条纹周期进行检测,从而简化了在紫外光全息光刻系统中检测紫外激光干涉条纹的过程,缩短了全息光刻工艺的周期 ...
李全宁, 熊聪, 郑凯, 赵懿昊
core  

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