Results 131 to 140 of about 29,573 (213)

广义非线性强度理论及其变换应力空间 [PDF]

, 2004
姚仰平, 路德春, 周安楠, 邹博
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利用非线性效应减小光纤偏振模色散

Guangtongxin yanjiu, 1997
数值模拟了非线性功率脉冲在光纤中的脉冲演化过程，发现利用非线性可以压缩每一脉冲的偏振分量和减小偏振模色散（ＰＭＤ）。
龚岩栋, 关雅莉, 文冀萍, 江中澳, 简水生   +4 more
doaj  

应用非正交曲线坐标表示的任意迴转流面叶栅粘性气体流动的完全N.S.方程的求解 [PDF]

, 1984
乃兴 陈, 丰显 张
openalex   +1 more source

非自治线性差分方程全局吸引性中的若干问题 [PDF]

, 2004
建设 庾, 志明 郭
openalex   +1 more source

齿轮故障演化的非线性动力学机理与实验研究

Jixie chuandong, 2015
由于齿轮传动存在间隙、摩擦以及时变刚度,其动力学特性具有强烈的非线性。当齿轮发生故障时,如点蚀、剥落以及断齿,振动信号往往伴随有超谐波、次谐波等非线性特征,给齿轮故障诊断带来一定困难,因此有必要研究齿轮不同故障程度时的非线性振动机理。通过应用傅里叶级数来描述齿轮时变刚度,一定程度上避免了分段函数刚度突变问题;通过引入齿轮故障程度因子来描述齿轮故障程度,建立了齿轮故障程度的非线性动力学模型;并搭建齿轮故障演化实验台进行相关实验。仿真和实验结果表明,在一定摩擦因数以及转速时 ...
苏勋文, 王少萍
doaj  

[Sex-specific hemoglobin thresholds for oxygen saturation: A non-linear regression analysis based on Tibetan inpatients]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Gongjue Z, Mao Y, Dawa P, Laba C, Yan Q.
europepmc   +1 more source

快速旋转光学延迟线的非线性误差校准技术

祝莉莉 Zhu Lili, 薛竣文 Xue Junwen, 任姣姣 Ren Jiaojiao, 张丹丹 Zhang Dandan, 顾健 Gu Jian, 张霁旸 Zhang Jiyang, 李丽娟 Li Lijuan   +6 more
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[U-shaped association between hematocrit and resting pulse oxygen saturation in Tibetan plateau population]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Guo Y, Li R, Laba C, Yan Q.
europepmc   +1 more source

Parameter estimation error based robust adaptive law design and experiments [PDF]

, 2016
Gao, Guan Bin, Na, Jing, Yang, Guang Yu, Zhang, Jin Gang   +3 more
core   +1 more source

[Spherical measurement-based analysis of gradient nonlinearity in magnetic resonance imaging]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Yang X, Wang Z, Wang Q, Zhang Y, Song Z, Zhang Y, Qi Y, Ma X.   +7 more
europepmc   +1 more source