期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
RANKL-RANK signaling regulates osteoblast differentiation and bone formation 被引量:10
1
作者 Xu Cao 《Bone Research》 SCIE CAS CSCD 2018年第4期426-427,共2页
In the recent two decades, it has been well elucidated that receptor activator of nuclear factor-κB ligand (RANKL; also known as TNFSF11) binding to its receptor RANK (also known as TNFRSF11A) drives osteoclast d... In the recent two decades, it has been well elucidated that receptor activator of nuclear factor-κB ligand (RANKL; also known as TNFSF11) binding to its receptor RANK (also known as TNFRSF11A) drives osteoclast development as the crucial signaling pathway.;However, accumulating evidence also implies that 展开更多
关键词 RANKL-RANK signaling regulates osteoblast differentiation and bone formation BMSCS
下载PDF
The J_2 invariant relative configuration of spaceborne SAR interferometer for digital elevation measurement
2
作者 Ming Xu Ying-Hong Jia Shi-Jie Xu 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2010年第4期643-651,共9页
A 3-craft formation configuration is proposed to perform the digital elevation model (DEM) for the distributed spacebome interferometric synthetic aperture radar (InSAR), and it is optimized by the modified ant co... A 3-craft formation configuration is proposed to perform the digital elevation model (DEM) for the distributed spacebome interferometric synthetic aperture radar (InSAR), and it is optimized by the modified ant colony algorithm to have the best compatibility with J2 invariant orbits created by differential correction algorithm. The configuration has succeeded in assigning the across-track baseline to vary periodically and with its mean value equal to the optimal baseline determined by the relative height measurement accuracy. The required relationship between crafts' magnitudes and phases is formulated for the general case of interferometry measure from non-orthographic and non-lateral view. The J2 invariant configurations created by differential correction algorithm are employed to investigate their compatibility with the required configuration. The colony algorithm is applied to search the optimal configuration holding the near-constant across-track baseline under the J2 perturbation, and the absolute height measurement accuracy is preferable as expected. 展开更多
关键词 InSAR Digital elevation model (DEM) J2 invariant orbit differential correction algorithm formation flying
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部