Results 91 to 100 of about 1,036,158 (140)

基于小波变换的开都河径流量多时间尺度分析/Multiple Time Scales Analysis on Annual Runoff of Kaidu River Based on Wavelet Transform[J]

, 2011
以开都河大山口站1956-2006年的年径流量资料为例,利用Morlet小波变换对其水文序列的多时间尺度演变特性进行了分析,并预测了开都河2006年以后的年径流量变化趋势.结果表明:开都河存在6 a、10 a、15 a和38 a等4个主周期,其中38 a和10 a分别为第一和第二主周期 ...
新疆农业大学草业与环境科学学院,新疆乌鲁木齐,830052, ZHONG Rui-sen, 中国科学院新疆生态与地理研究所,新疆乌鲁木齐,830011, 钟瑞森, 郝丽娜, XIE Lei, 新疆水利水电规划设计管理局,新疆乌鲁木齐,830000, HAO Li-na, 谢蕾   +8 more
core  

[Evaluation method and system for aging effects of autonomic nervous system based on cross-wavelet transform cardiopulmonary coupling]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Lyu J, Wang Y, Shi W, Tao P, Ye J.
europepmc   +1 more source

[Multi-view signal integration via manifold learning for sleep stage classification]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Tong W, Lin X, Wu X, Li T, Wu Q.
europepmc   +1 more source

[A simulation study of photothermal effects in transcranial photobiomodulation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Liu X, Xia J, Pan J, Chen S, Zhang S, Wang M, Dong S.   +6 more
europepmc   +1 more source

[Dual-wavelength photoacoustic microscopy for evaluation of microcirculatory dysfunction and spatial heterogeneity in mice with liver fibrosis]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Xia Q, Qiu Y, Li H, Nie L.
europepmc   +1 more source

[Research on automatic removal of ocular artifacts from single channel electroencephalogram signals based on wavelet transform and ensemble empirical mode decomposition]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2021
Zhang R, Liu J, Chen M, Zhang L, Hu Y.
europepmc   +1 more source

[A time-frequency transform and Riemannian manifold-based domain adaptation method for motor imagery in brain source space]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Qi Q, Li M.
europepmc   +1 more source

Fault Feature Extraction of Gearbox Based on Wavelet and Wavelet Package

, 2009
本文结合自适应小波变换滤波去噪方法与小波阈值去噪方法,提出了一种可用于变速器故障振动信号去噪的双层滤波去噪算法。该算法的滤波过程分为两层,第一层滤波采用自适应小波变换滤波算法;第二层滤波采用经典的小波阈值去噪算法对信号进行二次去噪。最后,将去噪后的故障信号采用小波包进行了分解 ...
尚文利, 董彦辉, 陈书宏, 张勤照   +3 more
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[Advances in research on neuroelectrophysiological characteristics of post-stroke cognitive impairment based on quantitative electroencephalography and acupuncture interventions]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Feng Y, Su K, Ren Q, Pan R, Wang C, Zhang X, Li Q, Wang Y, Zhang M.   +8 more
europepmc   +1 more source

[An electroencephalogram-based emotion recognition method using multi-branch convolutional neural networks and Transformer]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Chen J, Liao D, Liu P, Wang Y.
europepmc   +1 more source