Results 91 to 100 of about 804 (162)

EEMD能量熵分析及在齿轮箱故障诊断中的应用 Application of EEMD Energy Entropy Method to Fault Diagnosis of Gearbox

, 2012
智云 石
semanticscholar   +1 more source

[Clinical application and mechanistic studies of psychedelics for treatment of depression: progress and future challenges]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Xia K, Gao T.
europepmc   +1 more source

[Attributable disease burden of low bone mineral density related fractures in people over 50 years old from 1990 to 2023 in China]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Lai Z, Wu Y, Jiang J, Shu X, Zeng Z, Chen W.   +5 more
europepmc   +1 more source

基于HHT的绝缘子泄漏电流分析及放电状态分类识别

Gaoya dianqi
泄漏电流是污秽绝缘子在线监测参数，能动态地反映绝缘子表面的放电状态。文中开展了瓷绝缘子人工污秽放电试验，利用Hilbert-Huang变换分析了不同污闪阶段的泄漏电流固有模态函数分量、Hilbert边际谱与时频熵，从时频域及波形细节提取了15个特征量，使用主成分分析法与最小二乘支持向量机分类器对污秽放电状态进行识别。结果表明：起始放电阶段与闪络阶段的泄漏电流固有模态函数分量较多；泄漏电流的Hilbert边际谱上频率主要分布在0~150 Hz、200~250 Hz范围内 ...
方春华, 陶玉宁, 吴田, 普子恒, 丁璨, 黎鹏   +5 more
doaj  

[Optimized extraction of active components of <i>Paeonia lactiflora</i> and their antioxidant, anti-inflammatory and pigmentation-reducing effects for skin whitening]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Xu Q, Li W, Zhang X, Chen Y, Jiang Z, Li G, Yan M.   +6 more
europepmc   +1 more source

[Contrast-enhanced CT-based habitat radiomics for analyzing the predictive capability for oral squamous cell carcinoma]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Liu Q, Liang Z, Yang S, Dong H.
europepmc   +1 more source

[Multi-source adversarial adaptation with calibration for electroencephalogram-based classification of meditation and resting states]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Gou M, Yin H, Chen T, Cheng F, Du J, Lyu B, Zheng W.   +6 more
europepmc   +1 more source

[Adaptive lesion-aware fusion network for joint grading of multiple fundus diseases]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zeng W, Guo S.
europepmc   +1 more source

[Effect of 40 Hz pulsed magnetic field on mitochondrial dynamics and heart rate variability in dementia mice]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhang L, Geng D, Xu G, An H.
europepmc   +1 more source

[Brain computer interface nursing bed control system based on deep learning and dual visual feedback]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Wang P, Ji X, Wang J, Yu X.
europepmc   +1 more source