化学镀钴对Ni（OH）2电极性能的影响

早在１９１４年Ｅｄｉｓｏｎ［１］就发现,在Ｎｉ－Ｃｄ及Ｎｉ－Ｆｅ电极正极材料中添加钴可以有效地改善电极性能．随着近年来研究的不断深入,发现钴对Ｎｉ（ＯＨ）２电极性能的影响主要有［２,３］：增加电极的导电性;提高析氧过电位;提高充电效率．在镍电极中添加...     

贝雷砂岩射孔损害区核磁共振实验研究

目的　根据对射孔损害区进行定性和定量的实验研究,分析该区形成机理及影响孔眼流动效率的因素; 方法　根据筛选粒度分析,在显微镜下测定岩石的岩性; 采用核磁共振实验对射孔后贝雷砂岩射孔损害区的岩石性能指标进行分析; 结果　核磁共振实验可定量分析射孔孔眼流动效率; 结论　损害区内岩石的孔隙度和渗透率明显下降,严重影响油井的生产流动效率;     

普鲁士蓝-六氰亚铁酸镍膜修饰铂电极的现场FTIR光谱电化学

报道电化学方法制备的普鲁士蓝│铂修饰电极（ＰＢ│Ｐｔ）和ＰＢ－六氰亚铁酸镍混合物膜│铂修饰电极（ＰＢ－ＮｉＨＣＦ│Ｐｔ）的循环状安和现场付立叶红外光谱电化学研究,发现不论ＰＢ膜还是ＰＢ－ＮＣＦ混合物膜经过脱水处理后,两膜中中ＰＢ的电化学还原反应受到了显著的抑制,而对ＮＣＦＣＦ结构的影响较小。     

Magnetic properties of heteropolyoxometalates

The progress of the study on the magnetic properties of heteropolyoxometalates during the late decade is reviewed. Some anions of heteropolyoxometalates containing magnetic atoms, such as [M4(H2O)4(PW9O34)2]10- and[M4(H2O)4(P2W15O56)2]16-[M = Co(Ⅱ), Zn( Ⅱ ), Cu( Ⅱ ), Mn(Ⅱ ), Ni(Ⅱ)], and [GaW9O37M3(H2O)3]n-[M = Fe(Ⅲ), Cu(Ⅱ), Co(Ⅱ)] showed ferromagnetic and antiferromagnetic properties. The combination of heteropoly anions and organic π-donor of TTF+ (te-trathiofulvalene cation) results in a variety of magnetic properties. Furthermore, there is an interaction between the inorganic and organic components. The electrocrystallization technique can prepare the organic-inorganic salts of this kind, which will become the new member of molecular magnetic materials. Heteropoly blue is a kind of the mixed-valence complexes and its reduction electrons can be delocalized over anionic framework. The further study on the magnetic properties of heteropolyoxometalates will provide important information for the design of molecular materials.     

Magnetic and mineralogical characteristics of reservoir rocks in the Yakela oil field, northern Ta rim Basin and their implications for magnetic detection of oil and gas accumulations

The evidence about hydrocarbon migration within reservoir rocks in two wells has been obtained according to results of magnetic and mineralogical analysis of the Kapushaliang Group reservoir rocks from wells S15 and S4 located at the Yakela oil field, Tarim Basin. Results show that the secondary alteration associated with oil and gas accumulations above oil and gas field is predominantly magnetite mineralization, and that sulfur alteration occurs commonly at oil-water boundary and their products are generally pyrite and pyrrhotite, except for magnetite alteration which is closely related with hydrodynamical conditions in situ. The spherical magnetite grains of cauliflower microtexture on surface extracted from oil-bearing cores are secondary magnetite related with hydrocarbon microseep-age and their diameters are usually less than 50 μm.     

有机锌硒膨化玉米粉的研究

本文论述了有机锌硒的麦芽富集方法, 以富锌硒麦芽为强化剂生产膨化玉米粉的配方和工艺过程。富硒麦芽生产的最佳条件： 亚硒酸钠溶液浸种浓度２００ｐｐｍ 、温度２４ ℃～２５ ℃、时间６ｈ ～７ｈ。麦芽中有机硒含量６０ｐｐｍ 以上。富锌麦芽生产方法基本一样。有机锌转化率高达９０５ 。有机锌硒膨化玉米粉最佳配方： 玉米１２ｋｇ、白砂糖０１ｋｇ 、富锌麦芽汁８５９ｍｌ、富硒麦芽汁６７ｍｌ。产品色泽浅黄, 口感细腻,玉米风味浓郁。每１００ｇ 产品中含有机锌４ｍｇ～５ｍｇ , 有机硒１４μｇ ～１５μｇ , 实为老少皆宜产品。     

电磁换向阀卡死故障的分析及处理

探讨分析电磁换向阀在液压系统安装调试期间卡死故障的原因,并提出相应的解决办法     

超细无机粉体的水中分散研究综述

叙述表面活性剂对超细无机粉体水中分散的３ 个步骤（润湿、分散、稳定）的影响,重点解释分散稳定机理与分散剂的作用,并介绍表面活性剂的分子结构与分散性的关系。具体列出了用于无机粉体水浆料的３ 种类型分散剂（无机型、有机型、高分子型）,初步讨论了分散剂的使用情况（ 最佳分散剂用量、固含量与最佳分散剂用量关系、粒径与分散剂用量关系） 。     

一种高速VLSI中布线系统模拟软件

传统的特征线法在用于求解无耗传输线时虽有简单的递归形式,且计算效率较高,但不能用于一般的有耗传输线,通过适当的参数修正后,导出了用于一般有耗均匀传输线递归形式的计算公式。记叙虎法只需计算传输线两端的电流和电压,计算效率高且节省内存,从改进节点法出发,将该算法模拟的时域模型等效为多端口器件,以此处理高速ＶＬＳＩ布线系统中的互连线,导出了其等效模型适用于改进节点法的构造方程,并设计了相应的布线系统通用     

超细粉射流分级机的流场分析

对实验室级小型超细粉射流分级机中的流场分布进行了测量与理论分析,并通过数学回归,推导出了分级室中流场的速度分布方程。