天然气转换过程中一种良好的过渡气源

该文介绍了用天然气取代煤、重油等制气原料改制成城市煤气的改制工艺流程、控制技术、催化剂开发等,并对实际运行情况进行了分析比较,得出了将天然气改制工艺生产的产品气作为天然气转换过程中的一种过渡气源是可行的。     

全球页岩气开发面面观

什么叫页岩气？页岩气,是从页岩层中开采出来的天然气,是一种重要的非常规天然气资源。页岩气的形成和富集有着自身独特的特点,往往分布在盆地内厚度较大的页岩烃源岩地层中。较常规天然气相比,页岩气开发具有开采寿命长和生产周期长的优点,大部分产气页岩分布范围广、厚度大,且普遍含气,这使得页岩气井能够长期地以稳定的速率产气。     

卡塔尔天然气出口战略转向分析

卡塔尔天然气产业的发展历程,充斥着阿拉伯国家间紧张局势和地区政治不稳定等能源地缘政治因素.其能源出口结构逐渐转向天然气,实际上是将天然气作为优势产品出口而最终成为世界天然气市场上举足轻重角色的战略意图的体现.面对美国天然气革命带来的冲击和亚欧天然气市场价格“溢价”,卡塔尔积极调整天然气出口战略,将天然气出口到经济增长较快、需求旺盛、价格较高的亚洲市场.卡塔尔的战略调整,符合其能源地缘政治和经济利益目标.     

制定合理的天然气价格

该文从无锡市天然气的建设和经营成本、燃气用量、质量要求及增强天然气在多种燃料中的竞争力等因素出发,对居民、工业、公建、汽车等各类不同性质的天然气用户进行了分析,提出了价格制订思路及各类天然气用户相应的天然气建议销售价格。     

城市公共交通应大力发展天然气汽车

论述了天然气汽车的特点及在城市公共交通使用天然气汽车的优越性,并介绍了西安市发展天然气汽车的概况。     

以色列和埃及的天然气合作:动因、问题及影响

天然气合作是埃及与以色列重要的合作领域.2008年埃及开始向以色列输送天然气,后因埃及政局变动而中止.之后不久,能源匮乏的以色列因勘探突破一跃成为天然气出口国.而能源需求迅速增加的埃及却受制于探采不足、产能下降等问题,出现天然气紧缺的状况.以埃在天然气领域合作的角色反转,变为以色列向埃及供气,这使得两国重新调整合作的战略预期.以色列希望通过天然气贸易与合作获取经济利益,提升地区政治地位;埃及则欲借助自产及进口的天然气,试图将自身打造为地区能源枢纽,扩展政治影响力.以埃两国实现了天然气生产、货贸的分工协作,并走向欧洲及国际天然气市场.虽然以埃天然气贸易与合作还面临着地区局势不稳定、商业风险和埃及的反以情绪等挑战,但通过天然气合作,以埃两国加深了经济联系,稳固了政治关系,提升了在地区和世界的影响力,并将对中东地区稳定乃至政治格局变化施加影响.     

水合物技术在天然气储运中的应用

随着能源结构的调整,天然气在一次能源中的比重逐步增大,天然气的储运成为人们日益关注的课题,该文就天然气的水合物储运技术作一综述。     

西气东输与加快上海城市燃气发展的几点思考

西气东输工程就是将我国新疆塔里木和陕甘宁的天然气通过管道输往急需清洁能源的东部地区,以满足东部地区对天然气能源的迫切需要。该文论述了西气东输与加快上海城市燃气发展的几点思考:资源开发与市场开发与长输管线同步建设、天然气价格对市场的影响、天然气高压管线的安全运行与维护、天然气与城市燃气的调峰问题、天然气的互换问题以及燃气行业与政府监管等问题。     

解密页岩油:页岩革命另一极

正美国页岩气革命成功的喧嚣之后,由页岩引发的能源革命悄悄延伸到页岩油(或可称致密油)。美国能源信息署(EIA)公布的数据显示,截至2012年底,美国天然气产量6810亿立方米,稳居全球第一大天然气生产国,其中页岩气贡献了1700亿立方米。天然气产量在过去几年的增长,造成美国天然气价格在低谷徘徊,廉价的天然气替代石油和煤炭资源,石油进口量大幅减少,美国石油对外依     

我国天然气产量跃居世界第九

2008年，中国石油天然气生产继续保持了两位数以上的增长，增幅达到13．7％，这是中国石油天然气产量连续6年保持了两位数增长。有关统计数字还表明，我国天然气产量近年来的增长速度远高于全球4％的年均增长速度，中国天然气产量已跃居世界第九位。中国已不仅仅是世界石油生产大国，也已成为世界天然气生产大国。2008年中国石油天然气生产根据市场变化及时调整产量结构，加快重点气区产能建设步伐。其中塔里木油田天然气产量达到174亿立方米，继续保持我国第一大气区地位。     

Accuracy of the judgment of facial expression of emotions as a function of sex and level of education

The purpose of this study is to examine the recognition of facial expressions of six emotions as a function of sex and level of education (high school, college, university) of the subjects. Three hundred French-speaking citizens of Quebec had to judge which emotion was expressed in various facial stimuli presented on slides. Results show that overall, the recognition of emotions was very good. However, there were significant and strong differences between emotions and sex and levels of education did not have strong effects on the results.This research was supported by grant EQ-1717 from Fonds FCAC (Gouvernment du Quebec).     

公用事业公有制的多种实现形式

分析了公用事业由国有独资经营向公有制多种实现形式转化必须把握好的几个方面。同时,政府应加强对公用事业的宏观控制力。     

浅析廊坊市加快科学发展的思路及措施

主要从思想建设、产业结构调整、城乡一体化方面探讨廊坊市抓住发展机遇,加快科学发展的思路。     

Developing understanding of the idea of communities of learners

The idea of a community of learners is based on the premise that learning occurs as people participate in shared endeavors with others, with all playing active but often asymmetrical roles in sociocultural activity. This contrasts with models of learning that are based on one‐sided notions of learning— either that it occurs through transmission of knowledge from experts or acquisition of knowledge by novices, with the learner or the others (respectively) in a passive role. In this paper, I develop the distinction between the community of learners and one‐sided approaches from the perspective of a theory of learning as participation, and use two lines of research to illustrate the transitions in perspective necessary to understand the idea of communities of learners. One line of research examines differing models of teaching and learning employed by caregivers and toddlers from Guatemalan Mayan and middle‐class European‐American families; the other line of research involves a study of how middle‐class parents make a transition from their own schooling background to participate in instruction in a public US elementary school.     

The frequency of sexual abuse and depression in a sample of street children of one of deprived districts of Tehran

The purpose of this study was to determine the frequency of sexual abuse and depression among street children who live in a deprived district of Tehran. The researchers used the K-SADS questionnaire and a clinical interview were used to evaluate depression and sexual abuse in 87 street children in Tehran. Eighteen (20.9%) of the children had been sexually abused. Depressed children were 3.2 times more likely to be sexually abused than non-depressed children. Furthermore, 26 girls (86.7%) and 27 boys (48.2%) suffered from depression. The frequency of depression demonstrated a significant association with the father's or breadwinner's history of imprisonment or unemployment. Interventional programs providing education and support should be implemented for street children.     

劳动法视域下新生代农民工权利缺失问题

中国经济崛起和城市化进程过程中农民工的贡献有目共睹,城市让生活更美好的诱惑使得中国的新老两代农民工从农村流入城市,2008年1月1日的《劳动合同法》和《劳动争议调解仲裁法》让社会看到了改善农民工权利状况的希望,然而新生代农民工的权利保护尤其是作为一名劳动者的权利保护的现状依然不如人意,没有救济的权利不是真正的权利、迟来的正义是非正义,每年岁末对于农民工权益的突击性保障并不能从根本上解决问题,把包括农民工权益保障的社会问题纳入法治框架内、通过探析新生代农民工权利阙如问题及原因进而发现从制度层面进行解决才是解决农民工权益保障问题的根本途径。     

学龄儿童健康行为研究方法述评

学龄儿童健康行为研究越来越得到重视,在未来周期性的研究中也面临着在快速发展的背景下保持较高质量、在有限的财政资源情况下持续提高、使趋势分析与修改问卷内容相适应、满足科学受众和政策受众的不同要求等挑战,因此,完善其研究方法成为当前迫切需要。     

“吸毒人员未成年子女监护问题”研讨会综述

针对吸毒人员对其未成年子女的监护不力或监护缺失的现状，深入探讨了终止、剥夺乃至转移吸毒人员监护权的问题。涉及到监护权转移实践方面的问题，与会专家提出了临时监护人，短、长期寄养家庭，机构性质的儿童之家，儿童福利院等多种监护权转移方案。对一些存有疑义的问题，则是需要系统研究、统筹规划的新课题。     

The contextualization of definitions of religion

The author insists on the need to take the social-structural context into account to evaluate the existing types of definitions of religion. Proposing a definition for the Western hemisphere, he then checks his definition against sociological studies referring to ‘new types of religiosity’ and concludes that sociologists should differentiate between meaning systems – of which religion is a sub-division – and spiritualities. In a second step, he discusses two sociological theories about religion and insists that sociologists should be more careful in using such theories by taking into consideration the type of religion the theory is concerned with. Finally, he suggests that rational choice theory and secularization theory might well be integrated and applied in a European context if we move to the level of the competing existing meaning systems.