Hydrocarbon pipelines transporting compressible products like methane or high-vapor-pressure(HVP)liquids under supercritical conditions can be susceptible t
With the increase of wall thickness of pipeline steel,DWTT fracture toughness has become more and more sensitive to production process,including alloy desig
Cold rolled steels with various vanadium and nitrogen levels have been treated to simulate the application of galvanizing and galvannealing to hardened mart
Aging of microalloyed steel pipe can occur at relatively low temperatures associated with the pipe coating process and/or during long term storage or use.Th
一要加强村务公开工作的领导。江泽民主席在党的十五大报告中明确提出“基层群众性自治组织，都要健全民主选举制度，实行政务和财务公开，让群众参与讨论和决定基层公共事务和公益
Recently,with the rapid upgrading of the equipment in the steel Corp,the rolling technology of TMCP has been rapidly developed and widely applied.A large am
聚苯胺(PANI)是一种高分子聚合物材料,具有特殊的光、电等性质,被广泛应用于反屏蔽,反腐蚀,抗静电,导电及催化材料等方面。近年来,改性聚苯胺的应用是科研者研究的热点,尤其是在催化领域和电化学领域。基于此,本论文以聚苯胺为碳源、氮源为基体,对其进行改性制备了新型的磺化聚苯胺基固体酸催化剂,并研究其催化性能。主要研究内容及结果如下:1、以聚苯乙烯为软膜板,苯胺为碳源和氮源,过硫酸铵为引发剂,固体SO
去年12月1日,中共中央办公厅、国务院办公厅发出通知,严禁党政机关到风景名胜区开会。12月6日,中办秘书局在北京举办了公文主题标引培训班。参加此次学习感触颇深,此班与其
伴随着近年来对能源的需求日益增加,化石能源出现了日益枯竭的现象,同时化石能源的大量开发和利用对环境和生态造成了严重的污染和破坏。所以人类必须寻找一种可再生的清洁能
当前,我们正处于改革攻坚、经济发展的关键时期,面对复杂的国际国内形势,面对新的任务和新的要求,一些领导干部由于主观和客观上的诸多原因,特别是由于市场经济条件下执政党