四矿问题

“四矿问题”核心是矿业企业问题 ,但当前突出的矛盾焦点是矿工问题 ,矿城问题。矿工问题和矿城问题显现出来的是资源枯竭 ,企业和城市经济转型问题 ,实质是矿山企业的备采储量枯竭 ,矿业企业没有资金从事新的勘探和转产问题。当前矿业暴露出来的问题 ,实质是现行的矿业体制无法继续运行下去的先兆 ,“四矿问题”既要治标 ,更要治本 ,解决“四矿问题”的根本出路在于深化改革 ,重新设计和建立矿业新体制 ,“四矿问题”解决不好 ,将影响国家经济安全 ,危机社会经济可持续发展 ,所以要像重视“三农”一样重视“四矿”问题     

齐齐哈尔北兴特钢95m~2带冷机跑偏问题的处理

带冷机跑偏问题,是烧结厂设备运行中经常遇到的问题,这个问题时时困扰着现场的设备管理人员,同时也是产品研发人员亟待解决的问题。文章对齐齐哈尔北兴特钢带冷机的跑偏问题进行了综合分析,通过对可能出现的问题进行了逐一筛查,制定了可靠的纠偏措施,解决了带冷机跑偏的问题,提高了设备运行的可靠性。     

EAP视角下的煤炭企业核心问题诊断及对策分析

在文献研究和问卷调查的基础上,分析把握了EAP核心问题总体状况,深入探讨EAP核心问题在人口统计变量及组织工作变量上的差异性,论证了EAP核心问题各维度的相关关系及预测力差异.实证研究发现,煤矿从业人员的制度公平问题及生理性问题最为突出;除生理性问题与个体关系性问题外,其它维度在人口统计变量及组织工作变量上均呈现显著差异;EAP核心问题总体状况与其各个维度均呈显著的正相关关系,与心理性问题的相关度最高.     

学生提出数学问题的能力培养

问题是数学的心脏.学生问题意识的淡薄,不敢、不愿或不善于提出数学问题是目前数学教学中的普遍状况.要培养学生提出数学问题的能力,则要激活学生的问题意识,教会学生提出数学问题的策略性知识,使学生敢提、想提、乐提、多提、善提.     

对偶问题的一种简单快速求法

在求一个问题的对偶问题时，经常会出现一些小的错误。本文规定了一个容易理解的线性规划标准形，然后根据实际问题是否与标准形式相符来求对偶问题。恰当运用该方法可以快速准确求出线性规划问题的对偶问题，简单，不易出错。     

西北地区主要工程地质问题及研究现状

西部大开发中的大规模工程建设不可避免的导致大量的工程地质与环境问题,西北地区特殊的地质环境,使得工程建设遇到了各种工程地质问题,主要有构造活动带岩土体动力稳定性、区域稳定问题、滑坡和泥石流、地面沉降、地裂缝、高陡边坡稳定问题、深埋隧道以及各种生态环境问题等.这些问题的研究决定了各种重大工程建设的顺利进行,为了对西北地区各种工程地质问题的研究现状有一个深刻的了解,在列举这些问题的基础上,对其研究现状进行梳理.     

加强国有资产管理,促进国有资产保值增值

近年来,国有资产管理面临的问题日益严重,其主要有两个方面,即国有资产流失问题和闲置问题,对应的解决思路就是国有资产保值增值问题研究和盘活国有存量资产问题研究。     

采矿工程中存在的问题分析及对策探讨

我国采矿工程中还存在着不少的问题,比如安全和技术问题,采矿环境问题等,这些问题的存在都无形中制约着我国采矿业的发展。因此,加强采矿业各个方面的管理已刻不容缓。本文从我国采矿工程的现状谈起,重点分析采矿工程中存在的主要问题,并针对这些问题提出相应的对策,以促进我国采矿业的迅速发展。     

浅谈企业内部控制制度审计

企业会计报表是全面系统地反映企业各种财务会计信息的载体,企业内部控制中几乎所有问题,如资产安全完整的问题、投资筹资决策好坏的问题、成本效益问题、经营方针的贯彻执行问题、国家法令法规和企业制度遵循好坏的问题、会计信息是否真实可靠的问题都可以在会计报表中得到集中体现,通过对会计报表的审计分析,挖掘出内部控制失效的环节,从而有针对性地发现和解决内部控制中存在的问题,是内部审计工作实施和外部控制测试评价工作的有效结合,是内部审计中行之有效的实用方法。     

失调与调适：矿产资源开发利用引发的社会问题与应对策略

针对矿产资源开发利用所引发的社会问题,从社会学视角,界定了其内涵的基础上,分析了矿产资源开发利用引发的各类失调问题,主要包括矿产资源开发利用导致的生态环境问题、资源枯竭与接替问题、开发区域获益不均与补偿问题、公平问题、矿业企业社会行为问题和其他与矿业开发相关的衍生问题等六个方面。为调适矿产资源开发利用引发的社会问题,提出外部成本“内部化”、推进矿业产业纵深发展、重构收益分配机制、强化企业履行社会伦理责任等策略,构建“企业自治-政府管制-多方共治”三者和谐共生的新型互动治理之路,助力矿产资源开发治理现代化建设     

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     

Market and recycling of NiMH battery

<正>Market status and future trend of NiMH battery1.Global market of small NiMH battery Global market size of small NiMH batteries declined year on year since 2011.The trend will continue to 2018,at the rate of 5%to 10%annually.Demand for small NiMH batteries will be stable gradually.Many electrical apparatuses are powered by the built-in lithium battery today,which is the main reason for the shrunk market of small NiMH batteries.But,for some products,small NiMH     

China rare earth market review

正September 1-10,2014 Affected by the National Day holiday,rare earth transaction was stagnant and the market showed a weak steady state.As there was no good news for downstream market,some products with flat demand would likely rally slightly for some time to     

2014 second batch of rare earth quota released

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矿用防爆轴流对旋主要通风机叶片ANSYS模态分析及应用

高效节能矿用防爆对旋主要通风机的叶片是主要通风机运行的关键部件,叶片在运行时不断受到气流的作用力,从而使叶片产生振动,当叶片振动的频率与叶片的固有频率接近时,容易产生共振从而导致叶片的断裂。一旦叶片断裂时,对主要通风机的安全运行产生致命的影响,从而导致矿山、化工等企业发生重大事故,将会产生不可估量的损失。基于有限元分析软件ANSYS,对高效节能矿用防爆轴流对旋主要通风机叶片进行模态分析及产生对应的六阶模态频率,对主要通风机叶片的运行频率、固有频率及产生的共振问题进行了原理分析,并且解决了叶片频率共振的问题,从而为主要通风机叶片结构设计提供理论依据,并对主要通风机叶片的安全运行提供保障。     

2013 NdFeB export analysis

<正>China totally exported nearly 24,000 tonsof NdFeB products during 201 3,including 18,825 tons of permanent magnet,valued USD 1.34 billion at an average price of 71.4 USD/kg;3,277 tons of NdFeB magnetic powder,valued USD 1 01 million at an average price of 30.9 USD/kg;1,334 tons of strip casting ribbon,with total export value of USD 74million at an average price of 55.3 USD/kg;and 586