Results 151 to 160 of about 1,082,401 (195)

光纤井下垂直地震剖面系统

open access: yes
本发明公开了一种光纤井下垂直地震剖面系统,该系统包括:在地面部分的光源,用于给光纤检波器提供光源;在地面部分的解调设备,用于光电转换并解调出地震波信号;在井下部分的连接保护单元,用于保护井下部分光缆之间的熔接点,在地面部分的光源和解调设备通过井下部分光缆连接于连接保护单元;至少一个在井下部分的波分单元,用于分离入射光与出射光,并对出射光进行单向隔离;以及至少一个在井下部分的光纤检波器,作为井下检波器单元,用于检测地震波信号;其中,连接保护单元、波分单元和光纤检波器通过井下部分光缆相互连接。利用本发明 ...
刘育梁, 张文涛, 李芳
core  

[Different Astragalus medicinal pairs improve diabetic nephropathy in mice by regulating lipid peroxidation through PTGS2]. [PDF]

open access: yesNan Fang Yi Ke Da Xue Xue Bao
Chen X   +7 more
europepmc   +1 more source

[Efficacy of CD4/TGF-β bispecific antibody in a mouse model of peritoneal metastasis of malignant melanoma]. [PDF]

open access: yesNan Fang Yi Ke Da Xue Xue Bao
Jiang Q   +11 more
europepmc   +1 more source

[Health education preferences in patients with type 2 diabetes mellitus based on Big Five personality traits]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Yuan S   +6 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy