油气田采油气废水外排原因分析

我国油气田的采油（气）废水绝大部分经处理后用于油田注水，但由于种种原因，还有一部分采油（气）废水不能回注。这部分水外排至环境中，对环境产生一定的影响。本分析了这部分水外排的主要原因，并由此提出我国油气田在采油废水处理方面急待解决的几个问题。     

冷轧带钢力学性能及彩涂性能数据采集处理网络系统

介绍了宝钢冷轧厂冷轧带钢力学性能及彩涂性能数据采集处理网络系统的结构和系统配置，着重阐述了其主要功能并就其实际使用效果进行了分析。     

船闸水力学试验数据采集处理系统

本文介绍的以ＰＣ微机为中心的船闸水力学试验数据采集和处理系统，适用于各种船闸水力学试验中水动力特性的测量和处理。该系统在ＤＯＳ３．１以上版本下运行，全部功能采用下拉式中文菜单操作，可实现６４通道的数据采集，同时可对采集数据进行在线或事后处理，并绘制成图表。     

某厂放射性废水排放口外江浅滩底质泥污染调查(二)

本文是对某钍水冶厂放射性废水造成江浅滩底质泥污染的第二篇报告。作者测定了底质泥表面上的γ照射量率,认为底质泥的污染可能是符合高斯分布的。根据深度为40厘米泥芯样的测量结果,表明最大污染层深度为20厘米左右。作者对1975—1979年期间的废水监测资料进行了统计分析,发现 pH 值呈正态分布((?)=8.0,(?)=2);钍、铀和镭的浓度呈对数正态分布。     

A garbage collection algorithm for shared memory parallel processors

This paper describes a technique for adapting the Morris sliding garbage collection algorithm to execute on parallel machines with shared memory. The algorithm is described within the framework of an implementation of the parallel logic language Parlog. However, the algorithm is a general one and can easily be adapted to parallel Prolog systems and to other languages. The performance of the algorithm executing a few simple Parlog benchmarks is analyzed. Finally, it is shown how the technique for parallelizing the sequential algorithm can be adapted for a semi-space copying algorithm.     

Melting treatment of waste asbestos using mixture of hydrogen and oxygen produced from water electrolysis

In this study, we melted four types of waste asbestos containing material such as spread asbestos, plasterboard asbestos, slate asbestos and asbestos 99 wt%, in a melting furnace at 1,450–1,550 that uses a mixture of hydrogen and oxygen (Brown’s gas) as a fuel. More volatile components (CaO, K₂O) are enriched in spread asbestos, plasterboard asbestos, and slate asbestos, while less volatile compounds (SiO₂, Fe₂O₃, MgO) remain in asbestos 99%. Through basicity of raw materials, spread asbestos, plasterboard asbestos, and slate asbestos were found to have more alkalinity, and asbestos 99% was found more acidic. SEM and EDX results revealed that all raw materials had various kinds of asbestos fiber. Spread asbestos, plasterboard asbestos, and slate asbestos were considered as tremolite asbestos, whereas asbestos 99% was considered as chrysotile asbestos. It was further confirmed by SEM and XRD studies that all waste materials contained some crystalline structures which transformed into amorphous glassy structure on melting. Also, in case of added glass cullet during the melting of spread asbestos, it transformed the raw material into a perfect vitrified product having more glassy surface and amorphous in nature     

Properties of waste soil—hydrated lime composite

There are vast zones of clay soils which are generally extracted up to 3m deep (active layer). Owing to humidity variations throughout the year, this type of soil causes much damage to structures due to continuous changes in volume. Very often the clay is discarded and substituted by inert materials at the construction stage. The use of hydrated lime with this type of soil is a treatment that aims to inhibit the already volumetric instability by using the resulting mixture as inert material (Nelson, J.D., Miller, D.J.: Expansive Soils, Problems and Practice in Foundation and Pavement Engineering. John Wiley & Sons, Inc., USA, (1992)). Additionally, it is known that such a mixture also improves the strength properties, and it is possible to use it as a resistant inert composite, at low cost, for construction material. Nevertheless, due to the lack of tracking of this composite over time, safety issues related to the durability of such properties are uncertain. Because of the above, in this work, the composite was subjected to a constant exposure to temperature to simulate the evolution process of the composition on a laboratory scale, assuming that the acquired properties originate from the mineralogical composition created at the time of the sample. The permanence of such composition is associated to the properties acquired since the beginning.     

精梳质量控制(下)

介绍了精梳工序的质量指标及其控制范围;总结出精梳落棉率、精梳棉结、精梳条条干CV值、重量不匀率等质量指标的控制原理及控制方法.     

放射性废物管理的现状和展望

本文概述了我国放射性废物管理的现状。对今后放射性废物的管理战略、管理的法规和标准体系、管理机构及处置技术等方面提出了建议。     

Review of Methods of research.

Reviews the book, Methods of Research (see record 1955-00057-000). The book is a lengthy volume addressed to "field workers, graduate students and members of the senior division of the undergraduate college who would evaluate the quality of conclusions, either as producers or consumers of research." The book has a number of collateral values which make it a useful reference work, including extensive bibliographies. The reviewer notes, though, that the work carries implications which will trouble many readers. It implies the primacy of data collection and treatment over the process of reflection from whence come the theories and hypotheses which direct the choice of data to be collected. It carries implications that all kinds of data collection are equally respectable, from an intellectual point of view, as indeed they are where only procedural questions arise. It implies that the student can be trained to "evaluate the quality of conclusions" on the basis of acquaintanceship and reference knowledge, i.e., knowledge of where to go in order to acquire the competency which will make one capable of asking the significant questions in the evaluation of the quality of conclusions. All of this seems to the reviewer to be likely to produce bystanders rather than participants in scientific work. (PsycINFO Database Record (c) 2010 APA, all rights reserved)