Results 81 to 90 of about 782,571 (165)

[Predictive value of ¹⁸F-FDG PET/CT metabolic parameters for survival in patients with recurrent tongue squamous cell carcinoma receiving nonsurgical treatment]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Yang X, Zheng K, Cao H, Xue L, Yu X, Ye H.   +5 more
europepmc   +1 more source

[Motion parameter decoupling and motion constraint-driven optimization for correcting rigid motion artifacts in cone-beam computed tomography]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Jiang H, Wang Y, Bian Z.
europepmc   +1 more source

[Domestic ROPA surgical robot for total hip arthroplasty: An artificial bone experiments]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Tai W, Wei Q, Ding H, Liu X, Zhang Y, Ge Y, Wang G, Zhang Y, Chai W.   +8 more
europepmc   +1 more source

[Comparative study on the accuracy of extraoral scanning versus intraoral scanning in digital impressions for implant restoration in edentulous jaws]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Yang Y, Li X, Shang X, Shan S, Li W, Qin Q, Wang Y, Zhao Y.   +7 more
europepmc   +1 more source

二维扫描法测量连续型激光器远场分布

, 1979
二维扫描法测量连续型激光器远场分布的原理是,用一个有一系列螺旋状分布小孔的旋转圆筒扫过被测光斑,以一维的旋转动作完成二维扫描。它能在10~(-3)—10~4瓦的功率范围内以10帧/秒的速度连续记录激光器二维的远场分布。此方法原则上适用于各种波长的连续输出激光器,特别适合于输出功率高 ...
沈世达, 刘建邦
core  

[A study on three-dimensional reconstruction of coronary arteries and numerical simulation of fractional flow reserve based on deep learning]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Wei J, Wang L, Zhang W.
europepmc   +1 more source

鞭毛虫的扫描电镜样品制备

, 2005
针对鞭毛虫样品制备中的难点,以Bodomorphaminima ,Hollande 1942为材料,对一类个体微小的异养性鞭毛虫的扫描电镜样品的制备做了初步探讨。以载玻片为载体,0 .1%的多聚赖氨酸为粘附剂,2 %的戊二醛为固定剂,采用临界点法干燥,获得了较为满意的扫描电镜照片。该技术可简化样品制备步骤,减少样品损失 ...
龚迎春,谷习文,余育和,沈韫芬,顾福康,倪兵
core  

[Application of transverse tibial axis reference method in rotational positioning of femoral prosthesis in total knee arthroplasty]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wei X, Wei Q, Yang H, Hao L, Zhang H, Yin Z, Li Y.   +6 more
europepmc   +1 more source

二维扫描法测量连续型激光器的远场分布

, 1978
本文提出用二维扫描法测量连续型激光器远场分布.其原理是:被测激光束先经衰减器将功率密度衰减至10~(-2)～10~(-4)瓦/(厘米)~2然后经聚焦镜及平镜反射,聚焦于扫描筒内壁之上,扫描筒壁上有一系列螺旋状分布小孔,各相邻两孔间夹角及轴向距离都相同,首末两孔间轴向距离及相邻两孔圆心间弧线在圆筒横截面上的投影长度均应稍大于欲测光斑直径,当圆筒用电动机带动旋转时,各小孔依次扫过光斑.透过小孔的光线用聚焦镜会聚于探测器上,探测器输出信号经放大器放大后由示波器记录,经整理后可得到“三维 ...
沈世达, 刘建邦
core  

[Perioperative Safety Analysis of Preoperative Targeted Therapy in Patients 
with ALK-positive Non-small Cell Lung Cancer]. [PDF]

Zhongguo Fei Ai Za Zhi
Fan M, Qin C, Fang Y, Fu H, Dai L, Yang Y, Liang Z, Xiong H, Yan W, Chen K.   +9 more
europepmc   +1 more source