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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 Active contour model based on LIF model and optimal DoG operator energy for image segmentation 期刊论文 Optik, 2020, 卷号: 202 作者:  Duan, Yaxi;  Peng, Taile;  Qi, Xianghui 收藏  |  浏览/下载：4/0  |  提交时间：2020/11/14 Gradient methods  Optimization  Active contour model  Gaussians  Gradient descent flows  Image fitting  Intensity inhomogeneity  Region based active contours  Segmentation performance  Total energy functional   Long-term active restoration of extremely degraded alpine grassland accelerated turnover and increased stability of soil carbon 期刊论文 GLOBAL CHANGE BIOLOGY, 2020 作者:  Bai, Yanfu;  Ma, Lina;  Degen, Abraham A.;  Rafiq, Muhammad K.;  Kuzyakov, Yakov 收藏  |  浏览/下载：55/0  |  提交时间：2020/11/25 active restoration  soil organic matter mineralization  soil warming  structural equation model  Tibetan grassland  topsoil and subsoil   Research on a Location Method for Complex Voltage Sag Sources Based on Random Matrix Theory 期刊论文 Mathematical Problems in Engineering, 2020, 卷号: 2020 作者:  Wu, Lizhen;  Zhang, Yongnian;  Hao, Xiaohong;  Chen, Wei 收藏  |  浏览/下载：21/0  |  提交时间：2020/11/14 Complex networks  Electric fault currents  Location  Random variables  Topology  Active power methods  Augmented matrices  Data-driven approach  Disturbance signals  Model-based method  Random matrix theory  Statistical characteristics  Topology information