煤矿瓦斯地质图中绘制等值线的技巧

为了准确地绘制瓦斯地质图,从瓦斯地质图绘制的目的及绘制方法展开研究,找出了现行瓦斯地质图中绘制等值线存在的4点问题:插值方法的合理选取;断层的绘制在Surfer软件中的实现;测点及其测定值在瓦斯地质图中的标定;地质单元的划分。对这些问题进行了论述,提出了解决办法,对提高煤矿的安全生产具有重要的意义。     

基于文件的矿图绘制系统

介绍了一种基于文件的Auto CAD矿图绘制系统,包括矿图模板、矿图符号库、矿图图层功能等。使用该矿图绘制系统后,大幅度减少了矿图绘制的工作量,缩短了矿图的成图时间,提高了矿图的绘制精度和效率,有较好的推广应用前景。     

基于地质勘探数据的三维储层模拟

简要介绍了可视化领域常用的两种方法:面绘制和体绘制方法,以及他们各自的优缺点.简要介绍了几种常用的体绘制算法,详细介绍了体绘制中最典型的光线投射算法的基本原理和流程.以VC++为开发平台,在Windows操作系统上,利用可视化工具VTK提供的光线投射体绘制算法和三维建模方法,以地质勘探数据为例,实现了研究区的三维储层模拟-渗透率模拟以及钻井模拟.     

矿井通风系统平面图绘制程序的研制

为适应矿井通风系统平面图形的专业化绘制要求，以通用绘图软件包ＡｕｔｏＣＡＤ为平台，用ＶｉｓｕａｌＢａｓｉｃ５．０开发了通风系统平面图辅助设计软件。该软件操作简便，功能齐全，具有单、双线的专业化绘制功能，有效地提高了通风系统平面图的绘制效率，减少了绘制工作量。     

基于AutoCAD的掘进炮眼布置绘制系统

掘进炮眼布置绘制系统基于AutoCAD二次开发,系统可绘制楔形、锥形、螺旋等12种掏槽方式,绘制辅助眼及周边眼及爆破作业图表,大大提高了设计工作效率。     

二维及三维矿图的绘制

介绍了AutoCAD软件平台的二维矿图数字化的主要方法和绘制的具体步骤,以及在绘制三维矿图中,手工绘制的具体步骤和用软件编程的基本思想。     

应用CAXA电子图板巧绘地形图

一些专业测绘部门均有专用的测绘软件绘制地形图,但当某些没有专用测绘软件而又需要绘制地形图的情况下,可使用CAXA电子图板巧绘地形图,介绍了绘制的方法.     

计算机辅助系统在巷道开拓炮眼布置中的应用

随着计算机绘图技术的发展,CAD技术在工业生产图形绘制工艺中得以实现。文章以煤矿开拓巷道炮眼布置为研究对象,阐述了炮眼布置图绘制的基本条件,提出了基于计算机辅助设计的炮眼布置图绘制软件开发思路。以AutoCAD平台为基础,利用LISP语言开发了针对炮眼布置的辅助程序,通过实际应用,绘制出了完整的、符合要求的炮眼布置图。     

矿井三维巷道的半自动绘制

以AutoCAD为图形处理平台,采用手工绘制与编程绘制相结合的半自动绘制方法,即用Visual BASIC编程实现绘制三维巷道的关键语句,其他部分仍用手工绘制,再结合后期图件的修整即可完成复杂的三维巷道绘制。这种方法具有程序简单、绘制速度快、用户易于操作、便于后期应用开发等特点。     

用计算机绘制矿图

文中针对利用计算机在绘制矿图时的特点,提出了自己的几点看法跟大家交流,以便进一步做好计算机在矿图绘制上的工作,充分发挥计算机在矿图绘制中的作用。     

Current situation and future trend of China rare earth luminescent materialindustry(continued)

<正>Developing ecological lighting source The world is facing the big problem of energy shortage today and the contradiction between economy development and environmental protection is worsened.Therefore,people are more likely to choose an ecological light source that is more energy efficient and environmental friendly.The choice provides great opportunity for the development of rare earth optical material industry in China.The concept of green lighting positions rare earth luminescent material as a leading player in illumination market.The light source of both rare earth luminescent lamp and LED lamp is ecological and energy saving.This is why     

Galaxy Magnets achieved the net profit of 34.02 million yuan in the first six months of 2014

正Galaxy Magnet announced its financial results for the first half of 2014 on August 14.For the first six months ended on 30 June 2014,Galaxy Magnet achieved operation income of RMB 182.3 million,up8.40% over the same period of 2013,and the net profit attributable to the shareholders of the listed company of 34.02 million yuan,increasing 35.49% over the same period of last year.Stable performance increase was led by development of new customers and application market of magnets.     

Rare Earth Application in Steel in China

<正>China has rich rare earth resources.Output of rare earth and steel in China ranks the top first in the world.However,there is still certain distance between the steel produced in China and developed countries from the point of varieties and quality.China still has to import some types of steel.Improving the quality should be emphasiZed in future development of steel industry in China.Rare earth can be used to upgrade traditional steel     

China rare earth market review

正November 21~30,2014Due to weak demand from downstream industries,transactions of rare earth in Chinese domestic market were inactive.It was difficult to sell any rare earth products except for dysprosium oxide and terbium oxide.Suppliers lost confidence in recent market.Demand for rare earth products was soft.Consumers continued to take a wait-and-see attitude.Rare earth export market remained slow.     

稀散金属产业的观察与思考

分析了近年来国内外稀散金属产业的生产、应用、资源与市场状况.铟锡氧化物靶材、砷化镓晶片、锗红外材料、铼高温合金和硒在电解锰及玻璃的应用等已成为稀散金属的主要应用领域.稀散金属的产量快速增长达到历史高位而导致了市场的失衡.以GaInP_2/GaAs/Ge,CIGS和CdTe为代表的非硅系太阳能电池是稀散金属的新兴应用领域,将给稀散金属带来日益增长的需求.     

Current situation and future trend of China rare earth luminescent material industry

<正>Rare earth luminescent material is one of the most important application sectors of rare earths.China enjoys the exceptional advantage to develop rare earth luminescent material for its abundant rare earth resources.After several decades'endeavor,China's rare earth luminescent material industry,headed by rare earth phosphor for lamp and LED and high efficient rare earth energy-saving light source,has been gradually developed into a scale industry.China has become a major production base of rare earth phosphor for lamps and rare earth     

China rare earth market review

正June 1~10,2014Rare earth market remained weak.Quoted price of rare earth products was similar to that in May.There was no sign of recovery in downstream market.The market of NdFeB magnetic materials and phosphor was depressed.Catalyst,polishing powder and ceramic industries remained inactive.Demand from downstream industry was soft.Consumers purchased on their needs.Suppliers had strong intention to sell.Prices of rare earth products     

Annual Report analysis of Chinese rare earth-related listed companies in 2013

<正>Chinese rare earth-related listed companies have published their 2013 annual reports.It can be understood from their reports that production and operation activities of Chinese rare earth-related companies were still heavily affected by macro economy and industrial policies.They basically followed the steps of national economy.In 2013,world economy recovered slowly but the economy     

Market opportunities and challenges for rare earth polishing powder

正1.Status of rare earth polishing powder Rare earth polishing powder with high content of cerium oxide began to replace iron oxide for glass polishing and became one of the key materials in glass polishing process since 1940.Compared with traditional iron oxide,rare earth polishing powder has many advantages,such as fast polishing rate,high polishing quality and long service life.It can achieve good surface quality and improve operation conditions.For example,in lens polishing,the polishing work that cerium     

Baotou Research Institute of Rare Earths developed a new RE alloy preparation technology

正Pyrometallurgy Laboratory of Baotou Research Institute of Rare Earths had independently developed a new preparation technology of rare earth alloy for NdFeB.The alloy can remarkably enhance the coercivity of NdFeB magnet but also evidently reduce the production cost of the magnet.The new master alloy was prepared in the kA pilot-scale electrolytic cell by the independent technology.The rare earth master alloy can be used as the raw material for NdFeB.Compared