部分种子成分的特征X射线在等效生物材料中衰减的测定

用Ｓｉ（Ｌｉ）探测器实现了Ｎａ、Ｍｇ、Ｓ、Ｃｌ的特征Ｘ射线在有机膜中的相对衰减以及与Ｏ、Ｋ元素的特征Ｘ射线能量相当的Ｘ射线或轫致辐射在有机膜中的相对衰减，分别得出了它们减的数学描述，并把实验得到不同能量的Ｘ射线在有机膜中的质量吸收系数与Ｂｅｒｋｅｌｅｙ的ＯＣＧ软件计算出的结果相比，相关都小于３０％。     

低能重离子及其碰撞产生的级联原子在生物材料中的直接作用范围

用Ｍｏｎｔｅ Ｃａｒｌｏ法模拟计算了３０ｋｅＶ和２００ｋｅＶ的Ｎ＾＋与１１０ｋｅＶ的Ｆｅ＾＋在模拟细胞中的射程分布和径迹结构，并将１１０ｋｅＶＦｅ＾＋模拟计算的结果与ＲＳＢ测量的结果相比较，发现计算与测量的结果吻合较好，离子的作用范围小于１μｍ。计算和实验的结果都说明能量相当低的重离子不大可能直接作用引起麦胚深层生物效应。     

High-temperature,high-pressure thermophysical measurements on liquid zinc

Wire-shaped zinc samples were resistively volume heated as part of a fast-capacitor discharge circuit. Time-resolved measurements with submicrosecond resolution of the current through the specimen, the voltage drop across it, and the thermal expansion of the specimen as a function of time allow determination of the enthalpy, electrical resistivity, and density at different temperatures up to superheated liquid states of zinc far above the normal boiling point. High static pressures, up to 3800 bar of the ambient medium water, were used. An estimate of the critical pressure for zinc is given by investigations of the stability of the sample with a framing CCD camera, taking pictures of different samples varying the ambient static pressure. The critical volume and the critical temperature are obtained by means of an extrapolation of measured data at different pressures.Paper presented at the Fourth International Workshop on Subsecond Thermophysics, June 27–29, 1995, Köln, Germany.     

宝钢宽厚板开发研制十年回顾

简要叙述了１９８６￣１９９６年期间宝钢以Ｎｂ，Ｔｉ，Ｖ微合金化和Ｃｕ－时效硬化为特征的宽厚钢板的开发研制概况，介绍了抗拉强度级别为４００，４９０和５８０ＭＰａ的五个钢种的力学性能。这些钢板已成功应用于宝钢大型高炉、氧气球罐和上海市黄浦江大桥的建造，是我国综合性能优良的细晶粒焊接结构钢的新发展。     

Relaxation phenomena caused by equilibration of point defects

Relaxation phenomena due to equilibration of point defects in metals are reviewed. The relaxation effect in specific heat observed in tungsten and platinum confirms that in both cases the nonlinear increase in the high-temperature specific heat has to be attributed to point-defect formation. Relaxation phenomena observed by measurements of electrical resistivity and positron annihilation are also considered. The comparison of the data seems to be favorable for the conclusion that all the phenomena are of one origin.     

Natural zeolite utilisation in pollution control: A review of applications to metals' effluents

This paper assesses the potential of natural zeolite utilization as a low-cost ion-exchange and sorbent material in pollution control and recovery of metals. The improvement of the purity of natural zeolites coupled with their chemical modification capabilities in order to provide specific properties may provide a cost-effective alternative for the treatment of heavy metal contaminated soil and water. The application of natural zeolites in industrial pollution control is becoming important and the level of technical effort is increasingly expanding. The extent of application is unlikely to be related solely to their low cost, but also to improved properties and performance characteristics, which will advance the practical implementation of natural zeolites' technology.     

含氮化合物废气选择性催化氧化技术研究进展

通过对当前含氮化合物废气治理技术的对比分析,总结选择性催化氧化的相关技术优势。根据对含氮化合物的种类及来源分析,介绍氨气、腈类、胺类及其他含氮化合物的催化净化技术。重点总结催化剂的种类、研发进展和在实际使用中可能遇到的问题,同时展望含氮化合物废气选择性催化氧化技术的研发方向。     

热采水平井整体开发草13块砂砾岩薄层特稠油

热采水平井技术是科学有效开发稠油油藏的重要手段。以胜利油田草13块为例，系统论述了利用热采水平井整体开发具有边底水的砂砾岩薄层特稠油油藏的开发程序和研究方法。在油蒇精细描述的基础上，通过热采筛选、产能评价、直井和水平井数值模拟、开发方式优化及指标预测等油藏工程研究技术方法，综合论证了利用热采水平井整体开发草13块的必要性和可行性，总结了砂砾岩薄层特稠油油藏水平井油藏工程设计中应遵循的原则，并在生产实践中见到明显效果，为胜利油田其它区块和类似油田的开发提供了借鉴和指导。     

稠油油藏的注汽量预测

利用HCZ预测模型，可对已开发油田的年产量和累计产量进行全程预测，并且在实际应用中取得了较好的预测结果。本文结合稠油田的实际情况，推导出HXZ预测模型在热采中注汽参数的预测公式。结合曙光油田曙1－7－5块的开发数据进行了预测，效果较好。     

特超稠油污水回掺降粘集输工艺

通过对河南古城油田BQ10区特超稠油乳状液的室内试验分析,指出该种乳状液的实际相突变点为68%左右,当相浓度Φ≥68%时,以W/O型为主的乳状液突变为以O/W型为主的乳状液.乳状液变型后,原油与管道内壁之间的摩擦以及原油之间的摩擦转变为水与管道内壁及水与水之间的摩擦,从而大幅度降低其粘度和摩阻损失;通过对古城BQ10区特超稠油区块单元内部污水回掺降粘集输的现场试验,证明与室内试验分析得出的结论相符合,说明区块单元污水回掺不同于常规的掺热水,也不同于掺联合站处理过的净化污水,它优于单井掺稀油.最后指出该工艺可有效地降低井站回压,方便生产管理,降低开采成本,提高采油效率和经济效益,具有低耗节能的优点.