共查询到18条相似文献,搜索用时 62 毫秒
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本文介绍了1500m3轻烃球罐焊接,通过对焊接工艺参数的分析,选择合适的焊接方法,并在施工过程中掌握好焊接要点和施工程序,施工的6台球罐经无损检测全部合格。 相似文献
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李游 《环球市场信息导报》2011,(12):61-61,86
油气田生产出的天然气,通过集气管网等工艺,经分离计量,送往天然气处理厂脱硫、脱水,回收硫黄和液烃,能够获得符合标准的天然气或者液化气产品.该文主要就是针对天然气的加工工艺进行分析. 相似文献
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我国天然气"产输一体化"的市场结构存在诸多问题,容易造成市场发展不健康和政府监管低效率。在我国天然气产业快速发展的背景下,天然气市场结构优化非常必要。分析可知,天然气生产市场结构的调整关键在于价格体制改革上,以此促进天然气生产企业采取价格竞争。管输市场的优化在于建立管输市场第三方准入。对于城市燃气市场来说,其自然垄断的特性需要政府加强监管,如此才能既促进燃气市场的有效发展,又能保障消费者的利益。三个市场改革中,关键是管输市场改革,这有利于"放开两头,管住中间",提高政府的监管效率。 相似文献
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Thomas Volmer 《期货市场杂志》2011,31(11):1011-1051
This study advances the research on the convenience yield of natural gas. Econometric models confirm that air temperature is an important explanatory variable in addition to storage levels. Furthermore, an extended linear model shows that one has to account for a changing cost of physical storage in the spirit of Brennan ( 1958 ). Besides this, an alternative regime‐switching model for the convenience yield helps to put in perspective a prominent finding by Fama, and French ( 1987 ). That is, given binding capacity constraints for gas storage, the variance of the futures' basis will increase rather than decrease with the storage levels. Finally and most importantly, robustness tests demonstrate that the extended linear model produces the most viable forecasts and that these forecasts can help to amend the performance of reduced‐form models for the gas spot price. © 2010 Wiley Periodicals, Inc. Jrl Fut Mark 相似文献
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Kari Liuhto 《Journal of East-West Business》2013,19(1-2):33-46
This study analyzes the liquefied natural gas (LNG) terminal plans and their impact on gas supply in the Baltic Sea Region (BSR). Although the realized capacity of the planned terminals will be smaller than the planned one, these LNG terminals are strategic investments, as they will introduce competition that has a lowering impact on the price, and moreover, the terminals will improve the security of gas supply, though the BSR cannot build its gas supply on the LNG deliveries alone. In other words, the terminals will not replace Russia's deliveries but rather allow the countries in the eastern BSR to diversify a proportion of their gas supply. 相似文献
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电力系统运行的可靠性越来越受到重视,电力变压器作为电力系统中的重要电气设备,现目前的特点是电压等级高、容量大且造价十分昂贵,其故障会对电力系统的安全稳定运行带来严重的影响。因此应根据变压器容量和重要程度装设性能好,可靠性高的保护装置。其中瓦斯保护属于主保护。 相似文献
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Jarosław Ćwiek-Karpowicz 《Journal of East-West Business》2013,19(1):54-65
Rising gas production from nonconventional deposits in North America and the possibility of growth in the rest of the world pose a serious challenge to Russian energy interests. Although Russia has the largest proven gas reserves and is the number one exporter of fossil fuels, its position as a dominant gas supplier to the European Union (EU) is diminishing. This article examines the main problems of Russia's gas sector in the context of the shale gas revolution and the liberalization of the EU gas market. The article also analyses the perspectives of Russia's energy relations with EU countries and formulates some recommendations for them. 相似文献
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我国企业自主创新的障碍与对策分析 总被引:1,自引:0,他引:1
本文认为,当前我国缺乏创新人才,企业远未成为创新主体,国家创新战略存在偏颇与失误,风险投资机制远未建立和完善。这成为我国企业自主创新能力提升的关键性障碍,严重制约了我国经济增长与国际竞争力的提升。文章指出,为培育和提升我国企业自主创新能力,一要进行人才机制创新、管理机制创新及动力与激励机制创新,二要进行创新体系的结构优化、产业结构的调整优化与引进技术的结构优化。 相似文献
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20世纪80年代以来,欧盟内部统一大市场建设取得了巨大的进展,但在欧盟能源市场的自由化和一体化方面却收效甚微。近年来,随着能源重要性的不断加强,欧盟将天然气市场作为内部统一市场新一轮的发展重点。文章运用协整检验方法对欧盟天然气市场一体化进行了实证分析,认为目前欧盟天然气市场一体化程度仍然较低、成员国市场分割严重。 相似文献