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浏览/检索结果: 共2条，第1-2条 帮助 限定条件 发表日期：2018     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Reconstruction and Modal Analysis for Flow Field of Low Specific Speed Centrifugal Pump Impeller 期刊论文 Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery, 2018, 卷号: 49, 期号: 12, 页码: 143-149 作者:  Zhang, Renhui;  Chen, Xuebing;  Guo, Guangqiang;  Li, Rennian 收藏  |  浏览/下载：8/0  |  提交时间：2020/11/14 Centrifugal pumps  Computational fluid dynamics  Flow fields  Forecasting  Impellers  Mean square error  Orthogonal functions  Principal component analysis  Radial basis function networks  Centrifugal pump impellers  Hydraulic performance  Low specific speed centrifugal pump  Modal characteristics  Optimization design  Proper orthogonal decompositions  Radial basis functions  Root mean square errors   Factor structure of the Geriatric Depression Scale and measurement invariance across gender among Chinese elders 期刊论文 Journal of Affective Disorders, 2018, 卷号: 238, 页码: 136-141 作者:  He, Jiayue;  Zhong, Xue;  Yao, Shuqiao* 收藏  |  浏览/下载：5/0  |  提交时间：2019/12/03 Geriatric Depression Scale  Depression  Measurement invariance  Gender differences  Chinese elders  GDS  the Geriatric Depression Scale  EFA  exploratory factor analysis  CFA  confirmatory factor analysis  SD  standard deviation  SPSS  Statistical Product and Service Solutions  RMSEA  root-mean-square error of approximation  TLI  Tucker–Lewis index  CFI  comparative fit index  WLSMV  weighted least squares with mean and variance adjustment  BIC  Bayesian information criterion  PCA  Principal Component Analysis