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浏览/检索结果: 共3条，第1-3条 帮助 限定条件 发表日期：2020     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 Study of Lifetime Prediction of Concrete in Western Region Based on Weibull Distribution 期刊论文 Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering, 2020, 卷号: 28, 期号: 4, 页码: 993-1005 作者:  Qiao, Hongxia;  Feng, Qiong;  Zhu, Binrong;  Z., Wei;  C., Lu 收藏  |  浏览/下载：5/0  |  提交时间：2022/02/17 Concrete testing  Concretes  Distribution functions  Failure (mechanical)  Forecasting  Least squares approximations  Maximum likelihood estimation  Parameter estimation  Probability density function  Reliability  Degradation process  Experimental values  Lifetime prediction  Natural environments  Parameter estimation method  Parametric estimation  Reliability Evaluation  Reliability functions   Study of Lifetime Prediction of Concrete in Western Region Based on Weibull Distribution 期刊论文 Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering, 2020, 卷号: 28, 期号: 4, 页码: 993-1005 作者:  Qiao, Hongxia;  Feng, Qiong;  Zhu, Binrong;  Wei, Zhiqiang;  Lu, Chenggong 收藏  |  浏览/下载：7/0  |  提交时间：2020/11/14 Concrete testing  Concretes  Distribution functions  Failure (mechanical)  Forecasting  Least squares approximations  Maximum likelihood estimation  Parameter estimation  Probability density function  Reliability  Degradation process  Experimental values  Lifetime prediction  Natural environments  Parameter estimation method  Parametric estimation  Reliability Evaluation  Reliability functions   Automatic Calibration of Process Noise Matrix and Measurement Noise Covariance for Multi-GNSS Precise Point Positioning 期刊论文 MATHEMATICS, 2020, 卷号: 8, 期号: 4, 页码: 20 作者:  Zhang, Xinggang;  Li, Pan;  Tu, Rui;  Lu, Xiaochun;  Ge, Maorong 收藏  |  浏览/下载：11/0  |  提交时间：2020/09/01 EM-algorithm  multi-GNSS  PPP  process noise  observation covariance matrix  extended Kalman filter  machine learning