智能延迟触发产生器设计

在弹道测量、高速飞行物碰撞实验（如太空的‘垃圾’碎片对飞行的卫星、飞行舱的损害研究）及其它的类似实验中，需要准确测量飞行物碰撞前的一些状态：如速度、飞行姿态、断裂等情况，并且希望得到在碰撞前很短的距离处测量的数据。那么，在使用X光的阴影照相技术中有关X光机的触发问题就显得更加重要；如果X光机提前触发，此时飞行物还未进入照相区域或者离碰撞区的距离还远，则记录不到弹丸的X光图像或者位置不理想而造成数据不够准确；如果X光机延迟过多触发，则因已碰撞而无法获得碰撞前的状态参数：所以，X光机的触发时刻必须准确才能保证获得物体在希望位置处的X光阴影图像，并且降低实验成本。     

中外城市战略规划编制比较

对国内的广州，南京，杭州三大城市的战略规划编制进行了分析，并与西方一些发达国家的城市战略规划编制进行了比较．提出中外战略规划在编制内容、成果、期限等方面存在着相同点和不同点，提出研究中外战略规划对中国传统总体规划改革具有多方面的启发和指导意义．     

Effects of Dual-Electrode Biasing on Er in a Toroidal Plasma

Two externally biased electrodes were inserted into the plasma on the KT-5C tokamak to test the effects on modifying the radial electric field Er, other than single biasing. Using various combinations of biasing voltage,the influences of double biasing are compared with the single biasing. It turns out that the effect of dual-biasing is also effective as a single one, but the outer electrode seems to be shielded by the inner one and show less influence. The results clearly show that the radial electric field Er changed by external biasing is intrinsically an effect localized at the edge of the plasma, which is caused by the electrode induced radial current; and dualelectrode biasing using the method similar to the single biasing seems not to be able to increase more distinctly the peaking effect on Er than the single biasing.     

Experimental 511 W Composite Nd：YAG Ceramic Laser

We demonstrate a 511 W laser diode pumped composite Nd：YAG ceramic laser. The optical pumping system is consisted of five laser diode stacked arrays arranged in a pentagonal shape around the ceramic rod whose size is φ6.35×144mm. When the pumping power is 1600 W, the cw laser output up to 511 W at 1064nm can be obtained with a linear piano-piano cavity, and the optical-to-optical efficiency is 31.9%. To our knowledge, this is the highest value of laser output by using a newly invented composite Nd：YAG ceramic rod as the gain medium.     

高灵敏度X光探测系统

对高灵敏度X光探测系统结构和灵敏度进行了阐述，给出了厚度差为0．1mm的铜台阶在低照射量下的透视图像及处理结果，证明了系统具有高的灵敏度。     

10瓦级双包层光纤激光器

考虑到所用大功率激光二极管的光谱特性，对光纤激光器的基本法布里-珀罗腔型稍加改变，研制出激光二极管抽运的10w级双包层光纤激光器，获得最高功率为11．8w、波长1100mm的单模激光输出。     

Wey1代数中的消元法与q恒等式（英）

For the algorithmic proof of q-proper-hypergeometric identities, H.Wilf and D.Zeiberg gave a theoretical frame work. In [1], they proved that q-proper-hypergeometric terms satisfy recurrence relations with polynomial coefficients and could obtain quite explicit bounds for the order of such a recurrence. But how can we find the recurrence relations?We consider single-variable q-proper-hypergeometric identities based on Zeilberg's basic idea. To find the recurrence relations, an elimination in the non-commutative Weyl algebra has been developed. Thereby we obtained the algorithm of proving single-variable q-proper-hypergeometric identities.     

Optical fiber temperature sensor based on wavelength-dependent detection

Semiconductor fiber temperature sensors have been used widely in many fields, but most of them pick up temperature by measuring the optical intensity of certain fixed narrow-band in absorption spectrum.Furthermore, they are sensitive to the loss of optical intensity and the fluctuation of light source power.The novel temperature measurement system proposed in this paper is based on the semiconductor absorption theory and the spectral analysis of method. To measure temperature, the sensor model detects not the certain narrow-band spectrum but the most spectra of the optical absorption edge. Therefore the measurement accuracy and the stability can be improved greatly. Experimental results are in agreement with theoretical analysis results perfectly.     

Zn~（2＋）－Na~＋离子交换动力学 Ⅰ．溶液浓度和搅拌速度的影响

本文采用测量液相浓度变化和Ｘ射线电子探针分析树脂颗粒内浓度分布两者相结合的方法，研究了强酸性阳离子交换树脂上Ｚｎ２＋—Ｎａ＋交换的动力学，讨论了溶液浓度和搅拌速度对交换过程的影响以及在判断交换速率控制机理时应注意的问题．     

流通池—介质交换—阳极溶出伏安法同时测定铜,锑,铋

本文研究了同时测定Ｃｕ（Ⅱ）Ｓｂ（Ⅲ）Ｂｉ（Ⅲ）的方法。在盐酸溶液中对Ｃｕ（Ⅱ），Ｓｂ（Ⅲ），Ｂｉ（Ⅲ）进行预电解富集，经介质交换在选定的丙二酸－盐酸溶液中进行了差示脉冲阳极溶出伏安法（ＤＰＡＳＶ）测定，相邻溶出峰的△Ｆｐ＞８０ｍＶ，波形完好。