硅外延片（111）面层错腐蚀坑显微图象分析

本文就硅单晶外延片（１１１）面上层错腐蚀坑层显微图象和代表的腐蚀坑的形状作了分析研究，并对腐蚀坑的形成机理及其形成的规则作了讨论，且给出了实验技术上需注意的几个问题。     

Effect of Air Gap on Uniformity of Large-Scale Surface-Wave Plasma

The effect of air gap on the uniformity of large-scale surface-wave plasma （SWP） in a rectangular chamber device is studied by using three-dimensional numerical analyses based on the finite difference time-domain （FDTD） approximation to Maxwel1＇s equations and plasma fluid model. The spatial distributions of surface wave excited by slot-antenna array and the plasma parameters such as electron density and temperature are presented. For different air gap thicknesses, the results show that the existence of air gap would severely weaken the excitations of the surface wave and thereby the SWP. Thus the air gap should be eliminated completely in the design of the SWP source, which is opposite to the former research results.     

“气体压强的产生”模拟演示器

司南版教材中"模拟气压的产生"演示实验所需的实验装备在中学尚未普及,为解决这一问题,形象生动地演示该实验,利用日常易得的物品制作了"气体压强的产生"模拟演示器,详细介绍了该演示器的制作与演示方法.     

Surface Wave Analysis of Planar-Type Overdense Plasma with Surface Plasmon Polariton Resonance

Surface waves （SWs） in planar-type overdense plasmas are analyzed and the invariable SW mode caused by the resonant excitation of surface plasmon polaritons （SPPs） is presented. It is found that the electric field peaks at the location where the plasma density equals the cut-off density while the plasma density gradient and the collision rate have different influences on the field amplitude and the peak＇s width. Moreover, the mode conversion between SW of SPPs and electron plasma waves play a significant role in production of overdense plasma.     

BaTiO3薄膜陶瓷的制备与性能测试

本文介绍了薄膜PTC陶瓷样品的真空物理淀积方法,并对样品作了分析测试,其导电类型为半导体导电,遵守指数规律,样品电阻率具有典型的温度系数特征,响应速度快,对湿度敏感,性能稳定可靠,具有一定的开发意义。     

人工智能难题和程序语义学

句法机如何成为语义机是人工智能面临的难题，也是当代意向性理论研究的重点。程序语义学是试图解释这一问题的重要致思取向。它认为传统的人工智能、计算机科学等是以模态理论语义分析为基础的，其研究尚停留在符号的层面，而未涉及到真值、指称，即没有涉及到语言与世界的关联。在揭示语言与世界关联如何实现的问题上，程序语义学强调语义不是由对指称的计算所给予的，也不是由谓词逻辑的标准语义学所给予的，而是由程序给予的。程序语义学不但能够融合如福吉勒特等意义理论的局限，而且所提出的过程性分析和知识对于人工智能的研究、发展亦有启示性。     

微波脉冲氮气等离子体发射光谱测量

通过发射光谱测量和拟合不同的微波脉宽和气压下C波段微波放电的氮气等离子体振动温度、转动温度和电子激发温度。气压在266~400Pa时,等离子体的振动温度为(2700±100)K,电子激发温度为(0.32±0.015)eV,转动温度随脉宽增加而上升,实验中测得的最大转动温度为370K。偏离266~400Pa时,振动温度和电子激发温度同时出现了下降的趋势,而转动温度出现了上升的趋势。这意味着电子激发温度和振动温度具有很强的关联性。     

Electromagnetic interaction between local surface plasmon polaritons and an atmospheric surface wave plasma jet

We analyze the electromagnetic interaction between local surface plasmon polaritons （SPPs） and an atmospheric surface wave plasma jet （ASWPJ） in combination with our designed discharge device. Before discharge, the excitation of the SPPs and the spatial distribution of the enhanced electric field are analyzed. During discharge, the critical breakdown electric field of the gases at atmospheric gas pressure and the surface wave of the SPPs converted into electron plasma waves at resonant points are studied. After discharge, the ionization development process of the ASWPJ is simulated using a two- dimensional fluid model. Our results suggest that the local enhanced electric field of SPPs is merely the precondition of gas breakdown, and the key mechanism in maintaining the discharge development of a low-power ASWPJ is the wave-mode conversion of the local enhanced electric field at the resonant point.     

微波顺磁共振信号的讨论

本文根据反射式速调管的输出功率与频率特性，对微波电子自旋共振实验中共振吸收信号进行了详细讨论，并提出了不同的观察与分析的方法。