文东油田连续气举优化配气数学模型建立及应用

针对连续气举在开发过程中出现的注入气利用效率低、综合效益差的问题，建立了供气能力有限时的优化配气数学模型，给出了解析法求解过程。文东油田现场试验表明，应用该技术可以实现连续气举井的合理配气，并提高油井产量，适合在油田推广应用。     

基于ANSYS的铸嘴流体耦合场三维有限元仿真分析

作者用大型有限元分析软件ANSYS对铸嘴内稳态层流铝熔体进行仿真分析。实现了三维建模。解决了三维热一流耦合求解的问题，得到铝流体的速度、压力及温度的分布图。分析了铸嘴出口速度和温度的分布规律及其对连续铸轧的影响。     

压力铸造的现状与发展

概述了压力铸造技术的特点，总结了目前中国压铸与国外的差距，分析了我国压铸业面临的机遇和挑战，论述了压力铸造技术的新工艺，以及今后压力铸造的研发方向。     

Aqueous tape casting of yttria stabilized zirconia

Tape casting process was used to produce yttria stabilized zirconia (YSZ) substrates in an aqueous system with poly(vinylalcohol) (PVA) and glycerine as binder and plasticizer, respectively. Various compositions of YSZ slips with different amounts of PVA and glycerine and consequently different solid/liquid ratios were prepared. The influence of the slip composition on the rheological properties of the slips was studied. In addition, the effect of the slip composition on the properties of the green and sintered tapes was investigated. PVA and glycerine did not affect the dispersion properties of the YSZ powder. Glycerine additions enhanced the flexibility of the green tapes but also produced a decrease in the tensile strength. The increase in the PVA content increased the tensile strength but resulted in a markedly decrease in the green density of the tapes. A correlation between the green and sintered density was found. The anisotropic sintering shrinkage parallel and perpendicular to the casting direction increased with increasing the PVA content. The slip compositions with 5 wt% PVA produced green tapes with satisfactory tensile strength. They had the highest sintered density, the lower sintering shrinkage and the lesser shrinkage anisotropy.     

黑白电视机的电磁兼容设计

本文结合我厂μPC三片机的设计布局,探讨黑白电视机电路的电磁兼容设计。通过理论计算,提出中放屏蔽材料选择的理论依据。     

流延热释电厚膜陶瓷制备单元红外探测器

本文报道采用流延法制备的热释电厚膜陶瓷材料直接装配的单元红外探测器，该方法大大简化了目前探测器的制备工艺，极大地提高了材料的利用率，器件的性能也达到了目前探测器的水平。     

K418B合金细晶铸造整体涡轮真空热处理工艺研究

通过力学性能评估和金相组织观察，研究五种热处理制度，两个周期的试验结果，确定了Ｋ４１８Ｂ合金细晶铸造整体涡轮的真空热处理工艺。     

基于Legendre多项式的随机连续系统的Markov参数估计

本文在讨论连续Ｗｉｓｅｎｒ过程的Ｌｅｇｅｎｄｒｅ多项式逼近值的相关性和Ｗｉｅｎｅｒ过程扰动下连续线性系统基于该正交多项的最小二乘估计有偏性后，提出了无偏一致的且数估计误差方差最小的Ｍａｒｋｏｖ估计（最小方差估计）算法，并给出本文方法的仿真结果。     

大型离心复合球墨铸铁轧辊的生产

简述了我公司为舞阳铜厂试制４２００ｍｍ厚板轧机离心复合球墨铸铁轧辊的性能要求、内外层双重金属铸造工艺参数的选择及整个铸造生产工艺过程。     

铸造合金凝固过程瞬时应力的测试

以计算机采集处理系统为手段,测试了应力框铸件凝固过程的瞬时应力.结果表明,该方法简便、速度快,精度高,可获得铸件凝固过程瞬时应力及温度的动态变化过程。