Results 111 to 120 of about 1,830,658 (152)

基于光外差技术的超宽带频率响应测量系统

, 2005
介绍了一种利用光外差技术测量光电探测器超宽带频率响应的测试方法。将一个可调谐外腔激光器和一个固定波长的分布反馈激光器（DFB-LD’s）产生的激光输入到光电探测器进行混频。通过对可调激光器腔长的控制，可以在光电探测器产生从DC到上百GHz的拍频信号，在无需额外校准光源的情况下就可以进行光电探测器超宽带频率响应特性的测试，这是该方法最突出的优点。实验证明该方法比较准确、简便、易于操作。在实验中，对两个不同的InGaAs p-i—n探测器进行测量，得到器件的3dB带宽分别为14．4GHz和40GHz ...
伞海生, 祝宁华, 温继敏, 谢亮, 刘戬   +4 more
core  

[A deep learning-based method for rapid reconstruction and prediction of electromagnetic exposure in pacemaker patients]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Wei J, Tian R, Zhang R, Lu M.
europepmc   +1 more source

[Application and prospects of artificial intelligence from tool empowerment to paradigm reconstruction for whole-course diagnosis and treatment of liver diseases by ultrasound]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Huang JY, Xu QQ, Chen LD, Wang W.
europepmc   +1 more source

基于超声CT成像的钢-混凝土组合结构界面损伤识别研究

Jianzhu Gangjiegou Jinzhan
针对传统超声检测方法难以准确识别钢-混凝土组合结构内部缺陷的难题，提出了基于超声Computed Tomography （CT） 成像的钢-混凝土组合结构界面剥离损伤量化方法。研发了具有电磁屏蔽功能的磁吸式新型超声换能器，利用Akaike Information Criterion （AIC） 算法提取透射波初至的方法。基于所建立的正演数值模型和反演分析，系统性研究了Back Projection Technique （BPT），Algebra Reconstruction Technique （ART）
李修权, 孔庆钊, 陈琳, 任耀军, 许斌, 陈洪兵   +5 more
doaj  

[Targeted muscle reinnervation for treatment of painful stump neuroma]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Xiong D, Shali A, Kadier X, Cheng E, Wumaierjiang Y, Abudouxiku A, Yusufu A.   +6 more
europepmc   +1 more source

[Establishment and preliminary clinical validation of an artificial intelligence-assisted perforator identification model for anterolateral thigh perforator flaps based on ICGA videos]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Hou XW, Dong S, Zhu B, Wu CL, Tian YS, Wang S, Liu ZY, Ju JH, Wang K.   +8 more
europepmc   +1 more source

[Ultrasound technology's new application in the diagnosis and treatment of liver cancer]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Cai Q, Yu J.
europepmc   +1 more source

[Noninvasive nanosecond transcranial pulsed electric fields: deep-penetrating, high-field stimulation for suppressing hippocampal amyloid-β and improving cognitive function in an Alzheimer's disease model]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Chen Y, Yao C, Yan F, Xiao P, Lu X.
europepmc   +1 more source

[Duchenne muscular dystrophy-associated cardiomyopathy: advances in diagnosis and management]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Gu J, Liu YH, Hong SQ.
europepmc   +1 more source

[Research progress on the application of ultrasound technology in the diagnosis and treatment of lymphedema]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Tang ZY, Liu R, Deng CL.
europepmc   +1 more source