期刊：
Nuclear Physics B - Proceedings Supplements,1999年71(1-3):341-345 ISSN：0920-5632
通讯作者：
Liu, LS
作者机构：
[Liu, LS] Huazhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
通讯机构：
[Liu, LS] H;Huazhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
会议名称：
XXVIIth International Symposium on Multiparticle Dynamics
会议时间：
SEP 08-12, 1997
会议地点：
INFN, NATL LABS, FRASCATI, ITALY
会议主办单位：
Huazhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
摘要：
The meaning of single event analysis is discussed. Some examples are listed. The special interest in 2-D factorial moment analysis is explained in some detail. The single event 2-D factorial moment analysis of 11 A GeV central Au-Emulsion collision data from EMU01 is given.
摘要：
Switched LAN can improve the network performance, while the switch architecture is its research problem. A new switch architecture based on multirings topology is presented in this paper. It introduce the high-speed switch structure and network switched interface unit for switched Token Ring Network.
期刊：
Proceedings of SPIE - The International Society for Optical Engineering,1998年3467:23-33 ISSN：0277-786X
通讯作者：
Li, ZY
作者机构：
[Liu, W; Pan, XC; Li, ZY; Li, XJ] Huazhong Normal Univ, Dept Phys, Huazhong 430079, Peoples R China.
通讯机构：
[Li, ZY] H;Huazhong Normal Univ, Dept Phys, Huazhong 430079, Peoples R China.
会议名称：
Far- and Near-Field Optics: Physics and Information Processing
会议时间：
San Diego, CA, United States
会议论文集名称：
Far- and Near-Field Optics: Physics and Information Processing
关键词：
Fourier;PSTM;ASTF
摘要：
A Fourier analysis on the imaging process in PSTM has been presented. Analytical expressions for scalar/vector angular spectrum transfer function (scalar-/vector-ASTF) were derived. As the numerical results shown, the ASTF of a PSTM consists of two distinct components, the propagating component and evanescent component. For evanescent component, their amplitudes decrease dramatically while the phases remain constant as tip-sample distance d increases, which were found responsible for the degrading of the sharpness, contrast and intensity of the image. For propagating component, their phases increase linearly with d while the amplitudes keep constant, which causes distortion and bring blurring to the image. Compared with scalar-ASTF a vector-ASTF spreads out much wider and decreases an order faster as tip aperture diameter decreases. Based on ASTF the influences of such parameters as tip-sample distance, tip aperture diameter and the incident angle of illummating laser beam on PSTiM image has been discussed.
