数据挖掘技术在大坝安全决策支持系统中的应用

数据挖掘技术是一个新兴的，具有广阔应用前景和极富挑战性的研究领域。在充分研究大坝安全决策支持系统的基础上，结合数据挖掘技术的概念与方法等，对数据挖掘技术在大坝安全决策支持系统中的应用进行论述，与此同时，运用数据挖掘技术分析了某大坝垂直位移测值突变的物理成因。     

Investigation of the Effects of some Parameters in the Production of Chromate from Chromite Ores in Iskenderun Region

The conversion of chromite ore from iskenderun region into chromate was investigated. Firstly, the chromite ore was analysed using conventional chemical methods. Then, the effect of some parameters such as roasting time, temperature and the amount of additives on the conversion efficiency to the chromate was examined. The optimum roasting conditions were determined as 300°C, 2 hours, 10 times the stoichiometrically required amounts of NaClO₃ and 6 times the stoichiometrically required amounts of KOH. Under these conditions, the maximum recovery of chromate was found to be 100%. The product obtained from the roasting process was leached with water to produce a clean chromate solution. The effect of temperature and solid/liquid (S/L) ratio was investigated in the water leaching experiments. The optimum experimental results obtained were 100% at a 1:5 solid to water ratio at 25°C and 20 min leaching period. The chromate solution was purified using conventional purification processes.     

开展CAD／CAM／CAE工作提高矿用牙轮钻头设计研制水平

我国矿用牙轮钻头同世界先进水平相比有较大差距，大力开展矿用牙轮钻头CAD／CAM／CAE工作，促进学科交叉融合，是摆脱落后局面，参与全球性竞争的一项重要任务。     

瓦斯尾巷在高档普采工作面的应用

介绍了高档普采工作面利用掘送瓦斯尾巷等措施形成回风空间 ,从根本上解决高档普采工作面的瓦斯超限问题 ,其工艺有利于在其它采煤工作面内应用     

Study of trace elements in coal and mining wastes and its significance in China

In the world energy about 26% of all was dedved from coal combustion. Nearly 80% of the electricity produced in China is generated from coal. Coal will play the most important role in the coming 50 years as the past century in China. However one consequentially of the mining and combustion of coal is the mobilization of trace elements, especially trace metals, which have environmental and human health significance. Information on concentrations and distributions of potentially toxic elements in coal, and information On the modes of occurrence of these elements and the relations of the minerals in coal can help to predict the behavior of the potentially toxic trace metals dudng cleaning, combustion, weathering, and leaching.     

某硅线石矿石选别中除铁研究

针对矿石中硅线石微细嵌布，铁矿物嵌布亦较细。且有近二分之一铁在非金属矿物晶格之中，除铁难的特点，通过试验研究对比采用一段磨矿磁选除铁后磁尾浮选富集硅线石．浮选精矿再磨后酸浸再除铁的工艺方法，获得了理想的除铁效果，使硅线石精矿质量达到较高品质。     

浅析铂钯精矿的提取技术

本文简述湿法工艺提取铂钯金属精矿的工艺技术及主要生产过程     

超临界CO2处理后的金属铀表面氧化腐蚀和电化学腐蚀实验研究

采用重量法和电化学方法分别得到表面经超临界CO2处理后的铀试样在60℃、70％RH条件下的氧化动力学曲线(△m-t)和在50μg/g Cl^-溶液中的阳极极化曲线、自腐蚀电流等抗蚀评价指标。结果表明：经超临界CO2处理后，金属铀表面抗氧化腐蚀性能和抗化学介质腐蚀性能均有一定程度提高。对钝化膜提高金属铀表面抗腐蚀性能的原因进行了探讨。     

以乌海地区为例透视矿业环境问题

以乌海地区为例，全面剖析了采矿对地质环境的破坏及其对生态、经济、社会带来的影响，旨在有助于社会对此问题严重性的认识，以便为区域可持续发展制定良策。