期刊文献+
共找到3篇文章
< 1 >
每页显示 20 50 100
“猫眼效应”激光主动探测技术影响因素分析 被引量:5
1
作者 都元松 董文锋 +1 位作者 罗威 黎波涛 《现代防御技术》 2018年第5期88-93,共6页
基于"猫眼效应"激光主动探测技术,是对无人机光电侦察系统实施强激光干扰较为有效的一种干扰手段。根据激光照射"猫眼"目标的回返特性,建立了不同情况下回波强度模型,对典型目标在不同目标反射率、不同激光发射功... 基于"猫眼效应"激光主动探测技术,是对无人机光电侦察系统实施强激光干扰较为有效的一种干扰手段。根据激光照射"猫眼"目标的回返特性,建立了不同情况下回波强度模型,对典型目标在不同目标反射率、不同激光发射功率、不同激光发散角情况下进行仿真分析。结果表明,仿真结果与理论计算相一致,因此可用于指导未来基于激光主动探测技术的强激光干扰系统设计。 展开更多
关键词 “猫眼效应” 主动探测 光电侦察 强激光干扰 回返特性 回波强度
下载PDF
The Ghost Daughter Returns Home: Memory of Slavery in Toni Morrison's Beloved
2
作者 Grzegorz Kotecki 《Sociology Study》 2013年第12期933-940,共8页
This article aims to present Beloved, a ghost-in-the-flesh protagonist of Toni Morrison's Pulitzer Prize-winning novel Beloved (1987), as an incarnation of memory of slavery. Interpreted as personal and shared expe... This article aims to present Beloved, a ghost-in-the-flesh protagonist of Toni Morrison's Pulitzer Prize-winning novel Beloved (1987), as an incarnation of memory of slavery. Interpreted as personal and shared experience, Beloved will be analyzed on the basis of memory's dynamic nature as an active mnemonic agent operating in and between the individual and collective zones. It will be also argued that on the one hand, Beloved embodies memories of past slaved lives of the novel's central characters, Sethe and Paul D, while on the other hand she plays the role of an allegoric reminder of all Black slaves who lived and died in bondage on the American continent. Finally, Beloved will be symbolically seen as a historical, cultural and psychological link between contemporary African Americans and their African ancestors of the Middle Passage. The theoretical framework for this study of Morrison's most memorable ghost figure will follow from a discussion of memory's individual and shared qualities, as well as from the concepts of a collective consciousness, the collective unconscious, and collective memory. 展开更多
关键词 BELOVED ghost(s) MEMORY MORRISON SLAVERY
下载PDF
A NOTE ON THE STABILITY OF A CLASS OF DEGENERATE PLANAR CRITICAL POINTS
3
作者 Tusen HUANG Qi ZHANG 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2007年第3期461-469,共9页
A computable expression of the asymptotic expansion of the return map for a degenerate singular point of a class of planar differential system is given, and hence the stability and the type of the singular point can b... A computable expression of the asymptotic expansion of the return map for a degenerate singular point of a class of planar differential system is given, and hence the stability and the type of the singular point can be decided. These results generalize the corresponding results in [Nonlinearity, 13 (2000), p.709]. 展开更多
关键词 Isolated singular point monodromy singular point characteristic direction return map stability.
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部