Results 121 to 130 of about 332 (148)

Research on Switching Power Supply for Cyclotron

本文主要介绍了HIRFL和HIRFL-CSR中使用的高稳定度直流稳流开关电源和脉冲开关电源的设计方法，给出了一台零电压开通移相软开关电源样机和一台斩波式两象限工作电源样机的设计过程的设计结果，并利用仿真软件对设计完成的电路进行了仿真，最后给出了样机电源的试验结果。引言介绍了本文选题的背景，HIRFL和HIRFL-CSR的有关情况，加速器对电源的要求，以及国内外同类电源的相关情况。第一章主要介绍了稳定电源中影响稳定度的主要因素及解决手段，最后建立起了斩波式电源和移相软开关电源的数学模型和等效电路 ...
高大庆
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[Recent progress in magnetic covalent organic framework materials for the enrichment and detection of typical organic pollutants]. [PDF]

Se Pu
Jiang LS, Zhou QX.
europepmc   +1 more source

[Wound repair strategies of natural polysaccharide hydrogels based on microenvironmental regulation]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Xu FJ, Li Y.
europepmc   +1 more source

[Application and progress of intelligent responsive hydrogels in articular cartilage injury repair]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Xu Q, Zhang B, Li H, Liu C, Bi S, Yang Z, Liu Y.   +6 more
europepmc   +1 more source

[Role of antibiotic delivery system targeting bacterial biofilm based on ε-poly- <i>L</i>-lysine and cyclodextrin in treatment of bone and joint infections]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Liu T, Lin J, Zheng X.
europepmc   +1 more source

[Research of tricuspid regurgitation associated with cardiac implantable electronic devices]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Yu D, Lin Y, Chen Q, Liu X, Wang J.
europepmc   +1 more source

[Exosome separation and enrichment technologies and their applications in disease diagnosis and treatment]. [PDF]

Se Pu
Hou GS, Yuan HM, Liang Z, Zhang LH, Zhang YK.   +4 more
europepmc   +1 more source

[A simulation study of nerve fiber activation in the lumbar segment under kilohertz-frequency transcutaneously spinal cord stimulation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Xu Q, Li X, Lu Z, Wu Y.
europepmc   +1 more source

[Review of application of U-Net and Transformer in colon polyp image segmentation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Shi Y, Sun S, Liu J, Ma J, Li M.
europepmc   +1 more source

[Mechanisms and protective strategies for astronaut skin injury in deep space environments]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Xie Y, Zeng J.
europepmc   +1 more source