Results 101 to 110 of about 1,211,924 (146)

二维直线运动平台几何误差建模与数字化分析

, 2018
针对二维直线运动平台的定位精度受到绕X、Y、Z三个方向转动产生的角位移误差和沿着这三个方向的线位移误差的影响,采用一种基于三维模型的数字化方法对这些几何误差进行分析。通过参考坐标系和齐次变换矩阵建立二维直线运动平台几何误差运动学模型,并基于误差模型对运动平台的各项几何误差进行分配、计算和合成。基于以上误差分配原则对运动平台使用的导轨提出形位公差要求。通过上述工作,在虚拟样机设计阶段能对所设计结构几何误差进行预测 ...
廖有用, 陈进华, 王斐然, 罗均
core  

[Neurophysiological differentiation of children with ADHD alone and ADHD comorbid with dyslexia: a P600-like component analysis]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Huang YH, Huang KD, Zhan LF, Liu LQ, Liu LJ, Xiong J, Luo KJ, Yang F, Gong XX, Luo XM.   +9 more
europepmc   +1 more source

[Comparative study on the application of large language models in pre-exam learning for the Chinese dental licen-sing examination]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Pang X, Liu C, Fan J, Huang Y, Sun Y, Liu J.   +5 more
europepmc   +1 more source

[Interpretation of the 2026 Asia-Pacific Expert Consensus on Robotic-assisted Hip and Knee Arthroplasty: From precise execution to individualized decision-making]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Song Y, Xie H, Yi J, Li H, Zhang Z, Nan S, Chai W.   +6 more
europepmc   +1 more source

卡尔曼滤波在滴定分析法中的应用

, 1989
本文研究卡尔曼滤波在电位滴定分析法中的应用。介绍了滴定分析模型、卡尔曼滤波算法及程序框图。卡尔曼滤波对于提高那些反应较慢或电极响应迟缓的滴定体系的分析准确度有很大帮援。考察了采样间隔、滴定速度及系统误差等参数对结果准确度的影响。将本法应用于HAc/NaOH、KI/AgNO_3及CaCl_2/EDTA三种下同的滴定体系 ...
钱锋, 潘忠孝, 李志良, 石乐明
core  

[Application of accuracy profile-based evaluation in the development of quantitative methods for urinary phenol detection]. [PDF]

Se Pu
Liu XN, Shen YH, Tang WF, Ao JJ, Liu JX, Zhao L, Yuan LL, Huang X, Zhang QL.   +8 more
europepmc   +1 more source

[Fine-needle aspiration cytology and fine-needle aspirate calci-tonin measurement for diagnosing medullary thyroid carci-noma: a meta-analysis]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Zhang J, Yu J, Huang C, Zhang M, Zhang K, Meng N.   +5 more
europepmc   +1 more source

[Accuracy of dynamic navigation-assisted trephine method for bone harvesting]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Liu J, Zhu N, Chang Y, Gao X, Zhang Y.
europepmc   +1 more source

[Combined detection of urinary-related protein and fecal calprotectin for early warning of IgA vasculitis with nephritis in children]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Ye LY, Zhou RB, Xie M, Zhou HR, Chen XZ.
europepmc   +1 more source

[Artificial intelligence-enabled full-course diagnosis and treatment for patients with severe burns and wounds requiring repair: from risk prediction to causal inference]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Nie WZ, Xie KL.
europepmc   +1 more source