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1.
近日,全国天然气标准化技术委员会天然气标委秘书处在河南省郑州市组织了天然气标准宣贯。会议聘请了天然气研究院的标准主要起草人以及有关专家重点宣讲了GB/T22723-2008  相似文献   

2.
随着天然气汽车的储气瓶技术、低成本天然气转化技术、天然气压缩控制技术等不断发展,天然气汽车的使用性、便利性、可靠性大大提高,在现代较长的一段时间内,发动机用气体燃料将是最为现实和比较成熟的主导能源之一。因此,世界各国纷纷制定鼓励天然气汽车发展的优惠政策,相继制订出有关天然气及液化石油气汽车的各种标准法规,并建立了政府权威机构法规条例管理、科学管理、标准规范控制管理的质量安全保障体系。 新西兰政府机构管理体系 新西兰政府机构的管理体系见下图。  相似文献   

3.
天然气体积性质的测定及其标准化   总被引:1,自引:0,他引:1  
介绍了ISO标准对输配系统中天然气温度、压力、密度和压缩因子测定的有关规定,讨论了这4项体积性质测定与天然气计量的关系,并根据国家标准《天然气计量站技术条件》的要求,对我国天然气物性测定的未来发展提出若干建议。  相似文献   

4.
介绍了国际标准化组织天然气技术委员会ISO/TC 193第24届年会的有关情况,对TC 193组织结构、工作组构成及ISO标准发布做了简要概述,重点对ISO/TC 193直属工作组、SC 1"天然气分析测试"和SC 3"天然气上游领域"分委会在2012至2013年间开展的天然气产品和分析测试技术国际标准化项目的发展动态进行了详细介绍,并提出了下一步我国天然气产品和分析测试技术标准化的工作建议。  相似文献   

5.
介绍了国际标准化组织天然气技术委员会ISO/TC 193第24届年会的有关情况,对TC 193组织结构、工作组构成及ISO标准发布作了简要概述,重点对ISO/TC 193直属工作组、SC 1"天然气分析测试"和SC 3"天然气上游领域"分委会在2012至2013年间开展的天然气产品和分析测试技术国际标准化项目的发展动态进行了详细介绍,并提出了下一步我国天然气产品和分析测试技术标准化的工作建议。  相似文献   

6.
正6月,由齐鲁石化自产茂金属膜料产品生产的合成树脂产品包装膜通过包装试验,其热封性能、跌落性能、码垛性能和包装稳定性均等同或优于进口料产品,标志着国产茂金属聚乙烯产品对进口同类产品实现了 100%替代,公司科技创新再添硕果。近年来,齐鲁石化坚持把创新驱动作为引领发展的第一动力,以科技创新引领公司提质增效升级、持续健康发展,为企业高质量发展提供强有力的"筋骨"支撑。硫黄环保技术催化剂再添新贵5月30日,元坝天然气净化厂四联合装置脱硫单元一次开车成功,  相似文献   

7.
2011年4月19~23日,全国天然气标准化技术委员会天然气标委会秘书处在浙江省杭州市组织了天然气产品标准和测试方法标准宣贯。会议聘请了标准主要起草人以及有关专家重点宣讲了GB17820《天然气》、GB/T 22634-2008《天然气水含量与水露点之间的换算》、GB/T 18619.1-2002《天然气中  相似文献   

8.
天然气是当今世界极其重要的一种资源,在各国的工业生产中都具有极其重要的作用,伴随着技术的发展和人们环保意识的增强,天然气也逐渐代替煤气走近千家万户。所以,许多国家为了能够提高天然气运输效率,让整个运输过程的安全得到保证,进行了有关天然气管道输送自动化与自动化控制技术方面的研究。  相似文献   

9.
为解决天然气交接计量中存在的供需双方间的矛盾,局技术监督部组织局计划预算部、局总调、天然气供用双方和仪表安装队伍等单位的有关人员共同参加,于1999年4月14日对九区和红浅区5个天然气交接计量点的22台天然气计量仪表进行了认真的检定.检查认为:大部分仪表的安装符合设计图纸和规范;参数设置正确,符合有关要求.对  相似文献   

10.
简讯     
□1995年石油天然气行业标准制、修订计划已编制完成 在“总公司1995年石油天然气行业标准制,修订项目计划协调会”后,又经总公司技术监督局和有关专业局进一步审核,1995年石油天然气行业标准制、修订计划现已经总公司领导审核批准编制完成。  相似文献   

11.
《Telecommunications Policy》2014,38(10):914-932
This article analyzes the engagement of Japanese, Korean and Chinese participants in the development of Internet standards at IETF on the basis of four quantitative metrics: attendance, patenting, authorship and leadership. The results are strikingly divergent. Japanese involvement in Internet standardization began early and Japan was, for many years, second only to the U.S. in terms of IETF participation. Though Japanese participation has declined since the early 2000s, Japan remains a major contributor to IETF standardization. Korean involvement in IETF has always been significant, but below the levels of Japan and major European countries. Korean participation in IETF has also declined over the past decade, and has been dominated by one firm, Samsung. Though meaningful Chinese involvement in IETF did not begin until the mid-2000s, it has rapidly expanded in recent years. Today, China is a major player in numerous areas of Internet standardization in terms of three metrics (participation, patenting and leadership), and is rapidly gaining in terms of document authorship as well. Most of China׳s recent IETF involvement can be attributed to Huawei, though other Chinese firms have recently begun to increase their participation in the organization. Thus, contrary to some views that China׳s engagement with standardization is primarily one of indigenous innovation and “catching up”, China׳s experience with IETF demonstrates deliberate and effective engagement with a major Western standards-development organization on its own terms.  相似文献   

12.
增强Linux系统安全性的措施   总被引:2,自引:0,他引:2  
L inux系统的安全取决于系统管理员如何来管理它。本文探讨了一系列可以增强安全性的技巧与策略 ,包括 :系统安装原则、BIOS安全、口令安全策略、设计帐户自动注销功能、文件系统和日志安全策略、使用 SSH及 TCP-WRAPPERS,隐藏系统信息、删除所有特殊帐户、关闭控制台程序、限制系统中的 SUID/ SGID程序等。本文最后向 L inux系统管理员提出了一些安全管理方面的建议  相似文献   

13.
《Telecommunications Policy》2014,38(5-6):415-425
There is an ongoing discussion in the market which Next Generation Access (NGA) architecture best suits future needs and which investment and cost differences exist. The discussion can be subsumed as P2P vs. GPON, which is somewhat misleading as this article reveals. The discussion is driven by the fact that the high capital cost and the long asset life time of fibre mean that the technology choices made today will dominate the opportunities for telecommunication business of all market players, incumbents, competitors, content providers and business and residential users for many years in the future.The paper analyzes the cost and other differences between Fibre-to-the-Home (FTTH) access network architectures and their related different wholesale approaches by using the well-known and understood steady state approach applied in other NGA analyses in the past. In addition to the steady state analysis a dynamic cost evaluation is included taking into account the different investment behaviour of the FTTH architectures over time. The results describe investment and cost differences between architectures, incumbents and wholesale based competitive operators. The analysis has been performed for different geotypes (clusters) of decreasing population density in a representative European settlement structure.  相似文献   

14.
快速成形技术的应用及热点分析   总被引:1,自引:0,他引:1  
基于快速成形技术的原理,展示了快速成形技术在快速模具制造、金属零件直接成形、反求工程等领域的广泛应用,总结了快速成形制造技术研究的热点,即研发新材料和新设备、提高成形精度、建立RPM的反求工程系统、建立成形技术的统一标准和扩大成形技术的应用领域。  相似文献   

15.
This paper explores the idea that a sense of school subject image is a necessary feature of curriculum management and a potent force for change. The discussion centres on the view that all school subjects have an image and that if those intimately involved with the subject do not control the image then someone else does! In such circumstances the image is the product of past encounters and old euphemisms and is unlikely to hold the changed realities.The UK developments in Design and Technology education (the term Design and Technology is used to denote the school subject defined under this heading by the UK National Curriculum, 1995) have created something of an image problem which has interesting international parallels. Some of these problems are due to clearly discernible internal tensions and an ambiguous relationship with other subject areas.Through greater attention to subject image internal controversies might be acknowledged and resolved, relationships with other subject areas can be more meaningfully understood and practitioners can be helped to make sense of curriculum change.  相似文献   

16.
概括性介绍了 CIS(Corporate Identity System)的三大基本组成,并阐述了它与现代企业管理密不可分的相互联系及所处的举足轻重的地位,指出导入CIS是现代企业谋求发展的重要手段。  相似文献   

17.
In indigenous communities the nutrition transition characterized by a rapid westernization of diet and lifestyle is associated with rising prevalence of chronic disease. Field work and literature reviews from two different policy environments, Argentina (Jujuy) and Canada (Nunavut), identified factors that add to indigenous peoples’ disease risk. The analytical framework was the emerging human right to adequate food approach to policies and programmes. Indigenous peoples’ chronic disease risk tends to increase as a result of government policies that infringe on indigenous peoples’ livelihoods and territories, undermining their economic system, values and solidarity networks. Policies intended to increase food security, including food aid, may also fuel the nutrition transition. There is a need to explore further the connection between well-intended policies towards indigenous peoples and the development of chronic diseases, and to broaden the understanding of the role that different forms of discrimination play in the westernization of their lifestyles, values and food habits. Food policies that take due account of indigenous peoples’ human rights, including their right to enjoy their culture, may counteract the growth of chronic disease in these communities.  相似文献   

18.
企业管理水平的好坏直接影响着企业的经济效益,运用HSE管理能提高企业管理水平,HSE管理模式将健康,安全,环境三者视为一个有机的整体。HSE管理认为人的安全是第一位的,人是创造财富的原动力,是企业的最大财产,HSE管理体系强调的是“蝴蝶效应”。  相似文献   

19.
面向对象的程序设计   总被引:1,自引:0,他引:1  
用C+ + 语言阐述面向对象程序设计中封装和继承的概念以及在实际中怎样运用这些概念提高程序设计水平。  相似文献   

20.
This special section aims to investigate the interaction of global and local forces in shaping agrifood governance. It starts from the recognition that a multitude of actors and norms shape today’s agrifood system. The resulting opaqueness of the systems makes it extremely difficult to understand and explain processes and outcomes of agrifood governance. Given the sustainability challenges facing the agrifood system, improvements in our understanding of what the interaction of global and local actors and norms means on the ground are urgently needed, however. The section, therefore, analyses agrifood governance in India across a selected group of cases. It does so by employing a systematic framework emphasizing the material and ideational dimensions of power and their interaction. The section has chosen India as the setting in which to analyze this interaction due to the crucial role the food demand and supply of this rising power plays in today’s agrifood system. This article provides the special sections’ analytical framework, which uses the interplay of material and ideational dimensions of power as a focal lens. In addition, the article applies this framework to an empirical study of the political conflict around GMO foods in India, specifically the case of ‘Golden Rice’.  相似文献   

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