痕量氟的Al~（3＋）－Calcein配合物荧光熄灭测定法

本文建立了痕量氟的Ａｌ３＋－Ｃａｌｃｅｉｎ配合物荧光熄灭测定法．该法激发波长４８０ｕｍ，发射波长５０３ｕｍ，线性范围２～１５０μｇ／Ｆ－，灵敏度为２μｇ／ＬＦ－，１００μｇ／ＬＦ－时标准偏差为１．３μｇ／ＬＦ－，是现有的最灵敏方法之一．用茜素络合剂分光光度法进行对照实验，二者获得的结果一致．     

2kW行波加速器加速管冷却系统的数值优化设计

 利用工程设计分析软件I DEAS，对高功率加速管的冷却系统进行了计算机辅助设计研究，并通过对不同冷却条件下加速管的温度场、冷却系统的冷却效果进行的数值模拟，实现了加速管冷却系统的优化设计。这可为高束流功率低能电子直线加速器的设计提供参考。     

等离子体拍频波加速器中三波相互作用的时间发展

计算了等离子体拍频波加速器中双频抽运光与Langmuir波的相互作用及其时间发展。指出Langmuir波出生成到饱和的过程,与三波位相由匹配到失配密切相关。三波位相差作为描写三波耦合程度的量对于双频激光激发Langmuir波至关重要。 关键词：     

Scaling Behaviour of Diffusion Limited Aggregation with Linear Seed

We present a computer model of diffusion limited aggregation with linear seed. The clusters with varying linear seed lengths are simulated, and their pattern structure, fractal dimension and multifractal spectrum are obtained. The simulation results show that the linear seed length has little effect on the pattern structure of the aggregation clusters if its length is comparatively shorter. With its increasing, the linear seed length has stronger effects on the pattern structure, while the dimension D f decreases. When the linear seed length is larger, the corresponding pattern structure is cross alike. The larger the linear seed length is, the more obvious the cross-like structure with more particles clustering at the two ends of the linear seed and along the vertical direction to the centre of the linear seed. Furthermore, the multifractal spectra curve becomes lower and the range of singularity narrower. The longer the length of a linear seed is, the less irregular and nonuniform the pattern becomes.     

CRITICAL TEMPERATURE FOR A MODEL QUASI-ONE-DIMENSIONAL DISORDERED SUPERCONDUCTOR

With the help of the decimation ansatz of the renormlization group, the dependence of critical temperature on a transverse magnetic field is calculated analytically for a quasi-one-dimensional disordered superconductor model, based on the de Gennes-Skal-Shklovskii (dGSS) picture of the large cluster in a percolation system. Our results are in good agreement with those given by Halley's scaling theory.     

STUDIES ON RESPONSE CHARACTERISTICS OF DRUG ION-SELECTIVE ELECTRODES TRIFLUOPERAZINE ION-SELECTIVE ELECTRODE

New ion-pair complexes of trifluoperazine with dialkylnaphethalene sulfonates, tetraphenylborate, nitro-arylsulfonates, heteropoly acids and halogeno-metal complex acids have been synthesized. Their extraction coefficients in the water-membrane solvent systems are determined to be>10~6 and electrode slopes approach the theoretical values. Systematical studies on electrode behaviours show that the electrode performances depend greatly on the dielectric constants of both the electrode membrane solvent and the sample solution background rather than on the kind of the ion-pair incorporated. For homolog membrane solvents, the extraction coefficient and the liquid-membrane electrode slope increase with the increasing dielectric constant of the solvent, the slopes are found to be related linearly to the inverse dielectric constants of the membrane solvents according to the formula: S=68.5—95.7 ε~(-1) (for n-alcohols), S=69.7—62.0 ε~(-1) (for o-phthalates). Similar relationship exists between slopes of both     

HFT在非平稳信号组份分析中的应用

根据半傅立叶变换(HFT)的基本原理，以遥感探测一个有限闭合圆柱为例，应用HFT分析其暂态散射响应的各组份. 实验结果表明，在高信噪比的情况下，HFT能够成功地从被测物的暂态散射响应中优化分离出早期响应的似脉冲分量和晚期的衰减正弦波分量.     

化工原理课程的教学改革与应用型人才培养

化工原理是一门与工程实践密切联系的工程基础课,对培养应用型化工人才起着举足轻重的作用。通过灵活多样的教学方式和不断进取的考试改革,可以培养学生的工程思维能力、独立学习能力和综合运用能力,教学中的严格要求有助于培养严谨、踏实的优良品质,而高素质的教师则是培养应用型人才的关键。