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环境影响评价与环保核查的对比分析 总被引:2,自引:0,他引:2
将环境影响评价与重点污染行业上市公司环境保护核查进行对比,分别从工作程序、工作范围、工作内容、工作时段、审批部门、结论等方面分析,找出两者之间的区别与联系。 相似文献
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施工活动的预试车工作是难度相对较大的一项工作,其中的清洗吹扫工作由于涉及到介质提供、设备操作、方案制定、临时设施准备等一系列系统交叉、多方责任等问题,历来都是预试车工作的难点和重点。本文对项目的清洗吹扫工作做了总体的策划,提出相关要求,明确各方责任和义务。 相似文献
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稠油生产热采井中,伴热使用必不可少,针对现场使用中伴热管线频繁破损问题,本文从工作压力、工作状况、管理要求等方面分析,总结出压力调整造成的工作状况不稳定,水击现象等是影响管线使用寿命的主要原因。 相似文献
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化工分析工作对于生产企业、科研单位有着重要的价值,特别在工业现代化的建设过程中,更应该建立全面化工分析工作体系。本研究立足于化工分析的实际,对化工分析工作的价值展开了论述,阐述了化工分析的概念,说明了化工分析工作的主要作用,描述了当前化工分析工作存在的素质、质量、操作、仪器等方面的问题,提供了新时期以素质提升、终点误差控制、分析过程加强、节能环保等方法,提升化工分析工作精度和质量的措施。 相似文献
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水害一直是制约矿井生产安全的不利因素,近些年来在矿井生产中发生的严重透水事故也表明,矿山测量在防治水工作中具有中要作用。矿井采空区积水、承压水等对煤炭生产具有显著威胁,在生产过程中应重视测量工作,掌握采空区积水位置、范围等参数,承压水压力、隐伏构造发育情况等,从而做到防治水工作有效开展。 相似文献
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在新的形势下,加强和改进思想政治工作,需从有效消除思想政治工作的“盲区”、思想政治工作创新、健全思想政治工作机制、建设高素质政工队伍等环节入手,很下一番功夫,赋予思想政治工作以长久的生命力和活力。 相似文献
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为更好整合国有企业监督资源,提升监督合力,确保国有企业健康可持续发展,文章针对现阶段国有企业监督工作中存在的问题,如各自为政,重叠交叉,力量分散,缺乏顶层设计等,结合近年来一些国有企业的成功实践,从创新"大监督"体系的领导机制、工作机制和工作制度等方面进行阐述,提出建立监督委员会制度、监督委员会联席会议制度、完善有关工作制度等建议,以确保"大监督"体系落到实处,具有目标统一、协调联动、优势互补、资源共享的优势,提高监督的针对性和有效性。 相似文献
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张卫民 《中国石油和化工标准与质量》2011,31(7):234
统计数据质量是统计工作的生命线,其影响基层统计数据质量的因素是多方面的,基层统计基础工作薄弱、统计方法制度与指标体系不够科学、基层统计人员的素质与责任心等都是影响基层数据质量的主要因素,加强基层统计基础工作,提高人员素质,完善统计调查体系,加强法制工作等都是提高统计数据质量的重要举措。 相似文献
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苯乙烯是重要的石油化工原料。本文介绍了国内外苯乙烯生产的发展概况,合成乙苯,苯乙烯所用的催化剂种类,并就苯乙烯生产及催化剂的发展趋势提出了自己的观点。 相似文献
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Synthesis and characterization of homopolymers and copolymers of various acrylates and acrylonitrile
Various homopolymers and copolymers of methyl acrylate, ethyl acrylate, butyl acrylate, and acrylonitrile in different feed ratios were synthesized. These were characterized by IR, 13C-NMR, DSC, DTA, and TGA. Spectroscopic characterization helped in differentiating copolymers of different mol ratios. Thermal analysis revealed different degradation patterns for homopolymers and copolymers. The temperature and energy changes associated with various phase transitions were dependent on the chemical composition of homo- and copolymers, as expected. © 1993 John Wiley & Sons, Inc. 相似文献
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G. R. Hamed 《The Journal of Adhesion》1983,16(1):31-39
A substantially greater detachment energy is required to strip a polyethylene tereph-thalate (Mylar) film from a styrene-butadiene-styrene (SBS) triblock copolymer compared to that for peeling from a random styrene-butadiene (SBR) copolymer. This is true even though the intrinsic interaction between the Mylar and each elastomer is expected to be similar because of their virtually identical chemical composition. It is proposed that this difference in peel strength (between the SBS and SBR) is a consequence of the much higher dissipative capacity of the former elastomer. Another manifestation of this is the higher cohesive tear strength of the SBS compared to the SBR. Extents of energy dissipation within each elastomer during detachment of the Mylar adherend are consistent with the hypothesis that the average maximum stress experience before detachment is some similar fraction of each elastomer's tensile strength. 相似文献
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责任是人应主动承担的角色义务和对其因过失所造成后果应承担的责罚.有两层涵义:一是义务;二是后果.责任心是个体自觉做好分内事务和履行道德义务的心理倾向,是个性心理品质成分中自我特征维度上的重要内容.责任心具有两个方面的涵义:一是角色分内职责;二是角色道德义务.责任心是一种通过责任认知、责任个性和责任适应的动态形式表现出来的静态品质,责任心是责任心过程结构与责任心关系结构相互制约、相互影响的统一体. 相似文献
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《国际聚合物材料杂志》2012,61(1-4):113-122
Abstract Kinetics and mechanisms of oxidation of 6 acetals by molecular oxygen and ozone in liquid phase have been studied. Reaction with molecular oxygen (70°C, 15–16 hr) leads to the formation monoethers of the corresponding glycols with 68–90% selectivity. Salts of metals and complexes with crown-ethers have increased the reaction rate significally. Ozone have reacted with acetals with formation similar products. The mechanisms of intermediate stages have been proposed. 相似文献
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The variation of the Au 4f binding energy of Au clusters with the cluster size has been established by measuring the binding energies of clusters whose size distributions were independently determined by HREM and STM. The binding energy increases significantly when the cluster size is less than 2 nm. Au-Cu bimetallic clusters of the composition Cu3Au have been deposited for the first time on carbon substrates. The shifts in the core level binding energies of the bimetallic clusters show the effect of alloying in the case of large clusters, but show effects of both alloying and cluster size in the case of the small clusters. The interaction of CO with Cu3Au clusters is stronger than with a bulk Cu metal. The interaction of CO with small Cu clusters also seems to be stronger than with bulk Cu or with large Cu clusters. 相似文献