关于天然气组成分析比对工作的探讨

2006年中国石油股份公司勘探与生产分公司组织相关实验室对管输天然气样品进行了组成分析比对工作。对本次比对工作的建立和运作进行了总结,并介绍了组成分析比对工作的概况,总结了比对分析统计结果。本次比对工作的开展,对促进参加实验室天然气组成分析水平的提高起到了积极地推动作用,其结论和建议对今后进行天然气组成比对分析工作具有一定的参考意义。     

WHAT MAKES A GREAT JOURNAL GREAT IN ECONOMICS? THE SINGER NOT THE SONG

Abstract This paper analyses what makes a great journal great in economics. Alternative research assessment measures (RAM) are discussed, with an emphasis on the Thomson Reuters Institute for Scientific Information (ISI) Web of Science database. ISI RAM that are calculated annually or updated daily are defined, including the classic 2‐year impact factor (2YIF), 5‐year impact factor (5YIF), immediacy (zero‐year impact factor (0YIF)), eigenfactor score, article influence, citation performance per paper online, h‐index, Zinfluence, PI‐BETA (papers ignored ‐ by even the authors) and two new RAM measures, self‐citation threshold approval rating and impact factor inflation. The data are analysed for the most highly cited journals in economics, management, business and business–finance on the basis of 2YIF. In addition to evaluating research in the most highly cited journals in economics, management, business and business–finance, the paper evaluates alternative RAM, highlights similarities and differences in RAM criteria, finds that several RAM capture similar performance characteristics, and finds that immediacy and PI‐BETA are not highly correlated with other RAM. Harmonic mean rankings of the 12 RAM criteria are also presented. Emphasizing 2YIF to the exclusion of other useful RAM criteria can lead to a distorted evaluation of journal performance and influence.     

Regulation and investment behaviour in the telecommunications sector: policies and patterns in US and Europe

This paper reports the results of the quantitative analysis of international experience of the relationship between infrastructure investment in the deployment of capacity that can carry large volumes of voice and data traffic and regulatory policy changes in the telecommunications sectors. It looks at the relationship between infrastructure investment for these infrastructure assets and the access pricing régimes for local exchange carriers in the United States and Europe. It then looks at the relationship between various aspects of regulatory and institutional policy changes in Europe and how they affect access prices.The paper finds that a lower access price promotes greater deployment of digital technology among US incumbent local exchange carriers (ILECs). Based on this finding, it suggests that it is in the ILECs interest to have access to their networks encouraged.The European data for interconnection are recent and far reaching conclusions are not feasible, but the findings, however, suggest that competition has worked by facilitating new entry through decreasing interconnection prices, although path dependencies, of existing and traditional concepts, in the mindsets of operators as well as regulators, may account for these findings.     

创造良好环境 构建和谐矿区

近年来,企业环境建设作为加强精神文明建设和构建和谐矿区的重要突破口,颇受煤炭企业的重视。潞安矿业集团王庄煤矿紧紧围绕着企业生产经营这一中心,坚持以人为本、服务职工群众,致力于改善矿区环境,构建和谐矿区。     

新时期国民生活水平和生活质量变迁论略——兼谈存在的问题及主要对策

新时期以来,我国国民的生活水平有了很大的提高,主要表现在GDP的持续增长和人均可支配收入的增加。生活质量也有了很大的提升,主要表现为衣食的多样化和精致化、居住环境的宽敞化和人文化、生活用品高档化、人口素质不断提高和休闲生存状态方面等。但是,从总体上说,我国人民的生活水平和生活质量还存在着很多问题。彻底打破城乡二元结构,对国家的产业结构进一步调整和完善社会保障制度是当前应该采取的主要对策。     

The impact of market freedom on the adoption of third-party electronic marketplaces: A fuzzy AHP analysis

Electronic-marketplace (EM) is an innovative model for interfirm transactions that are undertaken via the Internet. However, in view of higher investment costs and other associated risks, many small and medium-sized enterprises (SMEs), instead of establishing their own EMs, turn to adopt third-party-hosted EMs. In literature, most relevant studies to the adoption of the third-party-hosted EM were conducted on the research contexts of free market. Industries under the protection of government policies may have limited degree of market freedom, different from industries without these protection policies. Thus, this study intends to compare the decision choice of EM adoption between industries with various degree of market freedom. The decision choice of EM adoption consisted of many strategic factors that were constructed in terms of a three-layer hierarchical structure proposed in this paper. A fuzzy analytic hierarchical process (Fuzzy AHP) was utilized to estimate the relative importance of these individual strategic factors involved in the decision-making process of adopting third-party EMs. The research findings indicated there were some similarities and differences in the decision choice between the two industries of interest. The variety of market freedom can account for the differences in the decision choice of EM adoption. In addition to enhancing our understanding of the EM adoption decision of participative companies, the research findings also provide insightful information to third-party EM providers so that they may improve the effectiveness and efficiency of resource allocation.     

基于蚁群聚类算法的绿色内陆港宏观布局研究

为解决绿色理念指导下的内陆港宏观布局问题,考虑了备选城市的环境友好性对内陆港发展空间持续性的影响,首先分析影响内陆港宏观布局的因素,之后选取具有较强鲁棒性、采用正反馈原理的蚁群聚类方法,从经济发展水平、多式联运能力、政策环境、发展空间持续性等角度,构建绿色内陆港布局模型.最后以天津港为对象的实例分析表明,蚁群聚类模型对于解决环境友好型内陆港布局问题是有效的,结果基本符合实际情况.该研究为构建绿色内陆运输网络、实现绿色物流提供了科学方法.     

The relationships among corporate social responsibility,corporate image and economic performance of high-tech industries in Taiwan

The economic development of high-tech industries in Taiwan focuses on IC design, opt electrics, semiconductors, computer science and telecommunication. It is necessary for business to understand the relations and significance of the economic performance to take the responsibility and keep a positive corporate image, thus they can earn more admiration and trust from customers. How do they take the social responsibility to improve their corporate image and create the economic performance, and finally reach the top one of the whole world? This study discusses the subject concerning the continuing development of business and relevant issues stated above. We found that 68.1% of high-tech industries in Taiwan are in accordance with business ethics and norms of conduct. Businesses take their responsibility practically by participating in public welfare activities. The more responsibilities they fulfill; the better image they have. High-tech industries should target the social responsibility as their first goal and secondly improve their corporate image to increase the economic performance.     

On Minimally-supported <Emphasis Type="Italic">D</Emphasis>-optimal Designs for Polynomial Regression with Log-concave Weight Function

This paper studies minimally-supported D-optimal designs for polynomial regression model with logarithmically concave (log-concave) weight functions. Many commonly used weight functions in the design literature are log-concave. For example, and exp(−x ²) in Theorem 2.3.2 of Fedorov (Theory of optimal experiments, 1972) are all log-concave. We show that the determinant of information matrix of minimally-supported design is a log-concave function of ordered support points and the D-optimal design is unique. Therefore, the numerically D-optimal designs can be constructed efficiently by cyclic exchange algorithm.