矿山测量时GPS起算点最终需要转化为地方或矿区的二维或者三维坐标,转换方式是将GPS坐标复合到国家或地方的坐标公共点,对其起算点的可靠性进行分析,从而将数据转化为需要的数据。不同类别和情况下测定的起算点误差精度不同,如果将这些数据无差别地作为原始数据,势必对GPS控制网的可靠性产生影响。本文对矿山GPS测量起算点的可靠性进行了分析研究,对分析方法进行了介绍,并采用实例对其进行了验证,对提高矿山测量
Diabetes mellitus is the leading cause of diabetic nephropathy;the early phase of diabetes is associated with kidney growth and hyperfiltration;several factors
对鹤岗矿区2013年开拓系统施工巷道利用率及各矿消火灌浆系统进行了分析,针对各矿采区灌浆系统现状,结合实际情况,提出了加强管理、减少采区内岩巷投入等针对性的措施。
Clobenzorex is an anorexigenic drug that is widely used in Mexicofor the treatment of obesity, since it helps to reduce body weight. This drug is available as i
Pharmaceutical services contribute to the rational use of medicines by ensuring the provision of appropriate, safe and effective pharmacotherapies. Thus, it is
近年来,随着高校规模迅速扩张和办学自主权的不断扩大,高等教育已从“精英教育”过渡到“大众教育”,高等院校的发展受到市场因素的影响越来越大,不断变化的外部环境使得财务管理
根据对孟津煤矿的瓦斯地质条件、煤层赋存特征及地面工程地质条件等影响煤层气抽采的因素的分析,结合矿井开拓情况,提出了地面井位选择的一般原则,并据此进行优选,确定最终井
Background: The efficacy and safety of dexmedetomidine during the anesthesia induction of intracranial tumor patients remain unknown. We wondered whether loadin
Recent data suggest that, in addition to improving dyslipidemia, statin may reduce the risk of infections and infection-related complications. The aim of this s
把计算机技术运用于会计核算及财务管理,以先进的计算机代替传统的手工会计操作的会计电算化,给古老的会计学带来了新的活力,是会计发展史上一场新的技术革命。因此,大力发展