Relationship between FAC at plasma sheet boundary layers and AE index during storms from August to O

来源 :Science in China(Series E:Technological Sciences) | 被引量 : 6次 | 上传用户:zhongxinghai
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Unlike the previous single (dual) satellite observation, the four ClusterII satellites make it possible to directly compute the continuous field-aligned current (FAC) density according to the magnetic data from them and to enable the investigation of t
其他文献
Wireless networks and Radio Frequency Identification(RFID) have always been closely linked.One of Wi-Fis first applications was transferring data from portable RFID readers.But the popularity of RFID
期刊
To assess right ventricular free wall longitudinal myocardium deformation and examine the changes with normal age by speckle tracking imaging(STI),myocardial systolic peak strain(ε),systolic peak stra
期刊
要说眼下什么最热门,当然非高清视频莫数。电视要高清、电影要高清、电脑要高清,网络视频要高清,就连光盘存储介质都为了高清而升级成蓝光了。现在高清无疑已经成为新一代视觉感受的代名词!
期刊
This paper presents a new method of damage condition assessment that allows accommodating other types of uncertainties due to ambiguity, vagueness, and fuzziness that are statistically non-describable
期刊
为了克服Kim-Fisher模型实现难度大、运行速度慢的问题,提出了离散的近似Kim-Fisher模型.该离散模型的目标函数直接定义在格点上,采用贪心法进行优化.首先,把图像的灰度值视为离散的随机变量,从而可以采用更为简单的方法估计条件熵.其次,针对基于水平集技术的二区域和多区域图像分割,提出一种无须扩展的统一的方法.最后,还提出一种多标号格点上曲线长度的近似方法,该方法比现有的方法更加准确.实验
期刊
In the real-world application of face recognition system,owing to the difficulties of collecting samples or storage space of systems,only one sample image per person is stored in the system,which is s
期刊
由于图像处理和计算机图形学的技术的迅速发展,人们能轻而易举地产生高逼真的计算机图片(CG),用肉眼几乎不可能把它们同照片区别开。但在很多情况下,我们必须分辨出哪些是真实照片,哪些是经过计算机处理的或是人为
期刊
针对现有小波类图像融合算法的不足,提出了一种基于非下采样Contourlet变换多聚焦图像融合算法,并在Contourlet域中引入了局部区域可见度以及局部方向能量的概念.针对低频子带系数和各带通方向子带系数分别提出了基于局部区域可见度以及基于局部方向能量的系数选择方案.通过对多聚焦图像融合的仿真实验,表明该算法相对于传统的基于离散小波变换和离散小波框架变换融合算法能够有效减少有用信息的丢失以及虚
期刊
Responses of photosynthesis and the partition of energy utilization to high-nitrogen importation and high-light intensity in leaves of three dominant tree species of subtropical forest,including sun p
期刊
本刊读编交流专区世纪先锋军事论坛—http://www.calf.cn/forumdisplay.php?fid=84上海发烧友论坛—http://www.hobbyshanghai.com.cn/forumdisplay.php?fid=36超级大本营论坛—http://bbs.cjdby.net/forumdisplay.php?fid=95飞扬军事论坛——http://www.fyjs.cn
期刊