中立型脉冲微分方程正解的存在性

本文利用Banach压缩映射原理，讨论了中立型时滞脉冲微分方程正解的存在性。     

红外／雷达双传感器融合目标跟踪算法

实现雷达和红外融合跟踪的基本思路是：首先提取红外成像的目标质心并将其转换到惯性坐标系：然后用最小二乘规则对红外传感器的冗余角度数据进行压缩，以产生在时间上和雷达测量对准的伪角度测量：再通过加权平均的方法分别与雷达的方位角和俯仰角测量进行融合处理，以得到同步数据融合估计。采用了由拉格朗日算法所求得的约束极值作为权系数，使用扩展的卡尔曼滤波方法设计跟踪滤波器，将基于雷达和红外融合得到的数据用于更新滤波器的目标状态。     

Development of Vacuum Monitoring System in the HL-2A tokamak

HL-2A is the first divertor tokamak in China. The vacuum system is one of the important parts of the HL-2A tokamak, which has to be work well during the physics campaign in 2004. As the tokamak machine is separated from the operation staff during discharges, to guarantee the safe and reliable operation of the vacuum system, it is necessary to watch the vacuum system outside the machine hall with an automatic monitoring system. The paper describes the design and manufacture of the monitoring system.     

The Design for Automation of Pellet-Forming Process in HL-2A Pellet Fueling System

In the ever fusion experiments in SWIP, pellet forming process was carried out through adjusting relative devices by staff member in site, which will make every pellet-forming process slight distinction and will result in pellet difference in shape, size and intensity. In the intervals of HL-2A discharges, staff member have to go site to accomplish the pellet-forming process, this wastes human power and increase the potential danger. So it is necessary to develop a remote control system to perform the pellet-forming process. The control system needs have the features of real-time, reliability and be easy to operate and maintain.     

Vacuum System for HL-2A Tokamak

The vacuum system of today＇s tokamak devices is designed to meet the operational requirements of the experiments. The operation can be divided into five modes, （1） pumping down and leak detecting of the vacuum vessel, （2） baking, （3） plasma-facing component （PFC） conditioning, （4）evacuating and controlling of the particles at plasma edge, （5） plasma discharge experiments.     

Δ—scaling and Information Entropy in Ultra—Relativistic Nucleus—Nucleus Collisions

The Δ-scaling method has been applied to ultra-relativistic p p,C C and Pb Pb collision data simulated using a high-energy Monte Carlo package,LUCIAE 3.0.The Δ-scaling is found to be valid for some physical variables,such as charged particle multiplicity,strange particle multiplicity and number of binary nucleon-nucleon-nucleon collisions from these simulated nucleus-nucleus collisions over an extended energy ranging from E1ab=20 to 200A GeV.In addition we derive the information entropy from the multiplicity distribution as a function of beam energy for these collisions.     

Li3N、Mg3N2、Ca3N2催化作用的比较和分析

 Li₃N、Mg₃N₂和Ca₃N₂是高温高压下以hBN为原料合成cBN的催化剂。在实验中发现它们对常压高温下生成hBN的反应也表现出催化作用。对比了三种氮化物催化效果的差异，发现三种氮化物都只有在熔融状态下才能表现出催化效果，以及三种氮化物对生成hBN反应的催化效果与它们在高温高压下合成cBN反应的催化效果次序相似。提出了对合成hBN有催化作用的化合物也将对合成cBN表现出催化作用的观点。     

串联双环光微谐振器的滤波特性

详细研究了串联双环光微谐振器的光带通滤波特性，给出了其通带带宽的公式，分析了出／入环光耦合系数和环间光耦合系数对通带特性的影响，计算并特别强调了滤波通带的结构特点，也分析了微环中存在的光损耗对串联双环光微谐振器的滤波特性的影响。     

Sobolev-Hardy不等式与临界双重调和问题

该文讨论一类带有奇异系数的双重调和方程{△^2u-μu/|x|^s=f(x,u),x∈Ω,u=δu/δv=0,x∈δΩ，这里Ω包含R^N是包含0的有界光滑区域，u∈H0^2(Ω），μ∈R是参数，0≤s≤2,△^2=△△表示双重拉普拉斯算子，当f(x,u)=u^p,p=2N/N-4时，上述问题就是一个临界双重调和问题，该文运用Sobolev-Hardy不等式和变分方法，得到它的解的存在性的一些结果。     

手机电源新家族——当代高能化学电源

 手机已成为当代一种时尚文化,发短信息、打游戏、上网、下载铃声、查看当天的新闻和电子邮件,正在迅速成为新一代中青年的精神宠儿。因为手机不再仅仅被当做联络信息的工具,它已成为交友娱乐,追求时尚,甚至是治疗孤独的爱物。因此,信息消费年轻化将是一个不可逆转的潮流。未来5年,中青年消费将更加趋于享受生活,追逐前卫和展示个性。随着信息技术的发展,通讯技术产品开发的日新月异,高能化学电源成为电子产品的原动力,是须臾也离不开的开路电压高、高比能量、工作温度范围宽、放电平稳、自放电小、长寿命的化学电源。