对CFG桩质量缺陷的探讨

根据具体工程的概况及水文地质条件，分析了CFG桩在地下水位出现大面积缩颈现象和复合地基载荷试验达不到设计要求的原因，并介绍了地基补强措施，以满足工程质量的要求。     

高导电性原油电脱盐工艺研究

南阳原油中金属含量较高,掺有部分3次采油采出原油,加工时易造成电脱盐装置原油乳化,电导率高,脱盐难度较大。装置投产十几年来脱后含盐一直不合格,经过改造仍然超标,常压塔顶腐蚀严重。为此,对原油进行了电脱盐工艺条件及破乳剂研究,研制出了高效电脱盐设备和生物复合脱盐剂及降电流剂,采用平流弓形电极进行改造,解决了该原油的电脱盐问题,使脱后含盐达到3 mg/L。     

TEM Studies of High Temperature Corrosion Behaviour of TiAl Intermetallics with Surface Modifications

The oxidation/sulphidation behaviour of a Ti‐46.7Al‐1.9W‐0.5Si alloy with a TiAl₃ diffusion coating was studied in an environment of H₂/H₂S/H₂O at 850^oC. The kinetic results demonstrate that the TiAl₃ coating significantly increased the high temperature corrosion resistance of Ti‐46.7Al‐1.9W‐0.5Si. The SEM, EDX, XRD and TEM analysis reveals that the formation of an Al₂O₃ scale on the surface of the TiAl₃‐coated sample was responsible for the enhancement of the corroison resistance. The Ti‐46.7Al‐1.9W‐0.5Si alloy was also modified by Nb ion implantation. The Nb ion implanted and as received sampels were subjected to cyclic oxidation in an open air at 800^oC. The Nb ion implantation not only increased the oxidation resistance but also substantially improved the adhesion of scale to the substrate.     

复混肥料中钾含量的测定

根据作者多年工作经验，详细介绍了复混肥料中钾合量的到定，且与标准GB／T8574—1988进行了逐一比较。     

天然多糖类/蛋白质复合材料的研究进展

在参考了 31篇文献的基础上 ,详述了天然多糖类与蛋白质复合材料的研究进展     

复式河道漫滩水流计算方法研究

对复式顺直河道和复式游荡型河道中漫滩洪水的计算方法进行了研究.其中，对复式顺直河道，从Shiono-Knight方法出发，将二次流项归并入雷诺切应力项，并将主槽和滩地的流速分布曲线直接相接，推导出一套不需联立求解系数方程组的漫滩水流流速和床面切应力分布的计算公式以及床面平均切应力的解析计算公式；对复式游荡型河道，建立了一种新的上层水流计算方法.文中的计算结果与前人的实验资料基本一致，初步表明文中的方法是合理的.     

复合式水力旋流器油水分离实验研究

复合式水力旋流器将动态与静态旋流分离技术有机地结合在一起 ,具有动态与静态水力旋流器的双重优点。这种旋流器由动力组件 (包括电动机、空心驱动轴、旋转栅及溢流嘴等 )、静态旋流单体、入口腔、底流腔及溢流腔等部分组成。对额定处理量为 8m3/h样机的分离特性测试表明 ,当电动机驱动轴转速低于 30 0 0r/min时 ,入口压力为 0 10～ 0 35MPa ,底流压差为0 0 5～ 0 2 0MPa ,处理量为 3～ 10m3/h ,选用单螺杆泵增压和离心泵增压两种方式 ,分离效率分别为 97%和 84 % ,均取得满意的分离效果。     

Intermetallic compounds formed at the interface between liquid indium and copper substrates

The interfacial reactions between liquid In and Cu substrates at temperatures ranging from 175°C to 400°C are investigated for the applications in bonding recycled sputtering targets to their backing plates. Experimental results show that a scallop-shaped Cu₁₆In₉ intermetallic compound is found at the Cu/In interface after solder reactions at temperatures above 300°C. A double-layer structure of intermetallic compounds containing scallop-shaped Cu₁₁In₉ and continuous CuIn is observed after the Cu/In interfacial reaction at temperatures below 300°C. The growth of all these intermetallic compounds follows the parabolic law, which implies that the growth is diffusion-controlled. The activation energies for the growth of Cu₁₆In₉, Cu₁₁In₉, and CuIn intermetallic compounds calculated from the Arrhenius plot of growth reaction constants are 59.5, 16.9, and 23.5 kJ/mole, respectively.     

Phase behavior of ternary blends containing dimethylpolycarbonate,tetramethylpolycarbonate and poly[styrene‐co‐(methyl methacrylate)] copolymers (or polystyrene)

The miscibility and phase behavior of ternary blends containing dimethylpolycarbonate (DMPC), tetramethylpolycarbonate (TMPC) and poly[styrene‐co‐(methyl methacrylate)] copolymer (SMMA) have been explored. Ternary blends containing polystyrene (PS) instead of SMMA were also examined. Blends of DMPC with SMMA copolymers (or PS) did not form miscible blends regardless of methyl methacrylate (MMA) content in copolymers. However, DMPC blends with SMMA (or PS) blends become miscible by adding TMPC. The miscible region of ternary blends is compared with the previously determined miscibility region of binary blends having the same chemical components and compositions. The region where the ternary blends are miscible is much narrower than that of binary blends. Based on lattice fluid theory, the observed phase behavior of ternary blends was analyzed. Even though the term representing the Gibbs free energy change of mixing for certain ternary blends had a negative value, blends were immiscible. It was revealed that a negative value of the Gibbs free energy change of mixing was not a sufficient condition for miscible ternary blends because of the asymmetry in the binary interactions involved in ternary blends. Copyright © 2004 Society of Chemical Industry     

西霞院水利枢纽工程泄洪闸振冲碎石桩基础处理

通过西霞院水利枢纽工程泄洪闸振冲碎石桩基础处理施工方法论述,给出了加砂层振冲碎石桩施工造孔水压、水量、成孔速度、填料级配、填料方法以及振密电流值、留振时间等施工控制参数。