聚合物复合膜的制备及吸液性能

由聚丙烯（PP）、聚乙烯（PE）制成的单层或多层微孔膜（PP，PP／PE／PP）具有良好的机械强度，且具备自关闭功能，已被广泛用作液态锂离子电池的隔膜，但PP，PP／PE／PP等微孔膜表面能低，难与塑料电极真正复合为一体，不能直接用于聚合物锂离子电池。因此在PP，PP／PE／PP等微孔膜表面涂敷一层具有黏结性质的过渡薄膜，兼顾两种材料的优点，有助于提高机械强度和将电极粘结起来的黏结力。聚合物复合膜是一种具有3层结构的复合膜，由两外层膜及中间膜组成。正丁醇不溶胀PVDF—HFP，可以丁醇为介质来测量复合膜的吸液率，该数据可作为膜孔率高低的判据，也可用于粗略判断膜电导率高低。     

铜、锌在5-Br-PADAP和表面活性剂体系中的分光光度法同时测定

5一Br—PADAP在阳离子表面活性剂溴代十六烷基三甲胺存在下同时测定Cu^2 和Zn^2 ，找出最佳实验条件，对水和血清测定结果令人满意．     

水动力学问题的弱可压缩模型求解方法研究

从弱可压缩水动力学方程出发，采用坐标变换的方法处理自由表面，建立了能够模拟有自由表面流动问题的定常、非定常的三维水动力学模型和对流扩散模型，模型采用浮湍流模型进行封闭，并对模型求解的数值方法进行了研究。     

辽河冷家油田特稠油降粘剂LJVR-1及其性能评价

采用荧光法测定了辽河冷家油田冷47-556井特稠油乳化HLB值,然后以混合型表面活性剂、非离子型表面活性剂为主剂,快速渗透剂为辅剂按一定比例制备了水基降粘剂LJVR-1.实验结果表明,该降粘剂具有良好的乳化降粘性能,开采后易于破乳脱水,是一种较为理想的特稠油降粘剂.     

会聚厄米-双曲余弦高斯光束的光强分布和焦移

 基于厄米-双曲余弦高斯光束通过无光阑限制薄透镜聚焦的解析传输公式，研究了厄米-双曲余弦高斯光束聚焦区域的光强分布，并对光束的焦移进行了分析，讨论了偏心参数对光强主极大位置的影响。结果表明：TEM₁₁模厄米-双曲余弦高斯光束的相对焦移（绝对值）随偏心参数和菲涅尔数的减小而增大，菲涅尔数较大时相对焦移趋于零。TEM₂₂模光束在偏心参数小于0.54时，轴外与轴上光强极大值的比值大于1，此时光强主极大在轴外，偏心参数大于0.54时则相反；在偏心参数等于0.54时比值为1，此时光束有两个主极大，偏心参数愈大光强愈集中于轴上。使用LW法和GH法得到的TEM₂₂模光束的相对焦移（绝对值）随偏心参数和菲涅尔数的变化规律与TEM₁₁模光束一致，但相同参数下使用这两种方法得出的具体结果不同。     

工艺参数对铀表面铝镀层热应力分布影响

为了防止铀的腐蚀，采用在铀表面磁控溅射镀铝，但使用中发现铝镀层内产生了较大的应力，影响镀层结合强度及使用性能。通常认为，薄膜内的应力有热应力和生长应力两种。文中通过改变沉积温度、镀层厚度以及镀层力学性能分数，研究它们对镀层热应力分布的影响，从而为改善铀表面铝镀层内热应力分布提供理论依据。     

数律条条美绝伦--√2、π&e趋论,兼为火星大冲年而作

1引论 我们先引述古希腊最著名的评论家Proclus(普洛克努斯)的一句名言: 哪里有数,哪里就有美.     

Formation Mechanism and Orderly Structures of an Iron Film System Deposited on Silicone Oil Surfaces

A new iron film system,deposited on silicone oil surfaces by vapour phase deposition method,has been fabricated and its formation mechanism as well as orderly structures has been studied,It is found that the formation mechanism of the films obeys a two-stage growth model,which is similar to that to the other metallic films on liquid substrates,Large and orderly structures are observed in the continuous iron films.The experiments show that the orderly spatial structures result from the local material gathering in these nearly free sustained films.     

SURFACE METALLIZATION OF CENOSPHERES AND PRECIPITATORS BY ELECTROLESS PLATING

This paper reports the use of a colloidal Pd^0 catalysis system to metallize the surface of precipitators separated from coal fly-ash, and metals such as Cu, Ni etc. are deposited on the precipitators surface. Alternatively, according to the characteristic surface of cenospheres, an Ag coating catalysis system is adopted to first deposit Ag on the cenospheres surface, followed, if necessary, by the deposition of other metals such as Cu, Ni, etc. on the Ag coating to produce monolayer and multilayer metal-coated cenospheres. The surface characteristics and the morphologies of the metal coatings are examined in detail with scanning electron microscopy (SEM), energy dispersive spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS) techniques. It can be shown that the quality of metal coatings derived from the Aa coatina catalysis system, is better than that of the colloidal Pd^0 catalysis system.