上海大众燃气SCADA系统及其应用

介绍了上海大众燃气SCADA系统的网络结构、通讯方式,以及系统在燃气输配监控和燃气计量等方面的主要功能和应用特点。     

燃气管道抗震措施

针对地震中不同燃气管道所受破坏情况的不同,提出了室内外燃气输配管道抗震的不同措施以及管材方面的选择。     

提高燃气地下输配管网控制力的几点思考

该文从强化工程质量、做好燃气工程档案管理、提高日常管理成效、提升管理技术水平等方面提出提高燃气地下输配管网控制力的几点思考。     

中职城市燃气输配与应用专业订单式人才培养模式的实证研究——以“港华订单班”为例

本文阐述了笔者学校城市燃气输配与应用专业与港华燃气集团在探索＂订单式＂人才培养模式中的做法、成效以及存在的问题,构建了中职燃气专业＂联合招生,订单培养＂的＂订单式＂人才培养模式。     

济南市天然气工程与蓝天工程

介绍山东济南市的燃气、天然气供应及空气污染基本情况,天然气输配系统及蓝天工程。     

中职学校燃气专业天然气场站实训场建设的探索与实践

本文阐述了广州市交通运输职业学校城市燃气输配与应用专业在天然气场站实训场建设的探索和实践中存在的问题及解决对策。     

上海天然气供应系统的安全评价及风险管理

上海作为大型城市,随着燃气利用规模的不断扩大,城市天然气供应系统的安全稳定性直接关系到城市的发展。从燃气安全管理角度分析城市天然气供应系统在气源系统、输配系统以及应用系统的风险特点,阐述了城市燃气供应系统在负荷预测、可靠性分析以及风险评价等方面的创新技术。     

煤气输配站的节能挖潜

介绍平顶山燃气总公司输配站用能现状及存在问题、引入变频调速技术和强化定额管理巩固节能成果。     

浅论燃气供销差的全面质量管理

分析燃气供销差的成因,探讨降低燃气供销差的相关对策,引入全面质量管理(TQM)概念,提出在影响供销差的4个环节(生产端、输配系统、用户端、统计制度)对燃气供销差实行全过程、全员、全企业的全面质量管理。     

燃气产销差成因浅析和对策

该文详述了燃气供应中形成产销差的多种因素及从输配、管理、计量、技术、用户等多方面来降低产销差的对策。     

燃气管理信息化的建设实践

燃气公司新建成的管理信息系统(MIS),一般综合了燃气输配、营销服务和管理的主要业务,它是建立在管理与信息技术基础上的信息化统一管理平台。该文通过介绍燃气公司MIS系统的结构、功能、特点及效益,说明燃气公司建设MIS系统的必要性,并分析系统建设中的关键问题。     

燃气信息化项目风险管理分析与研究

基于燃气信息化项目中的实践，结合PMBOK项目风险管理要素，从燃气信息化的实施与项目风险管理的内容来分析燃气信息化过程中的风险及管理。     

Intergenerational transfer of time and risk preferences

There is a growing interest in individual time and risk preferences. Little is known about how these preferences are formed. It is hypothesised that parents may transmit their preferences to their offspring. This paper examines the correlation in offspring and parental time and risk preferences using data from an annual household survey in Australia (the HILDA survey). Both time and risk preferences are examined and we explored whether the correlation in time and risk preferences varies across the distribution of preferences and across the across the four parent–child dyads (mother/daughter, mother/son, father/daughter, father/son). The results show that there is a significant relationship between parents and their young adult offspring risk and time preference measures. The correlation varies across the distribution of time preferences. The correlation was largest for longer planning horizons. Risk averse parents are more likely to have risk averse children. Except for the father/daughter dyad risk seeking parents are more likely to have risk seeking offspring. Some gender differences were found. The association in parental and offspring time preference was larger for mothers than fathers. Daughters are more likely to be influenced by their mother’s risk preferences, however, sons are equally influenced by both parents. The results of this study suggest that the transmission in preferences is more nuanced than previously thought and parental gender may be important.     

The Relationship between Marcellus Shale Gas Development in Pennsylvania and Local Perceptions of Risk and Opportunity

Recent advances in gas and oil drilling technology have led to dramatic boomtown development in many rural areas that have endured extended periods of economic decline. In Pennsylvania's Marcellus gas fields, the recent development of unconventional shale gas resources has not been without controversy. It has been variously framed as a major opportunity for economic revitalization at the local and regional levels and energy independence at the national level, but also as a significant environmental risk, with uncertain and uneven economic benefits. We use data from a survey conducted in 309 school districts located within Pennsylvania's Marcellus Shale region to study the ways local stakeholders perceive both risk and opportunity associated with gas extraction from Marcellus Shale. Our analyses indicate that there is a strong positive association between perceptions of risk and opportunity associated with gas extraction. Further, the intensity of perception of both risk and opportunity is directly associated with the amount of local drilling, suggesting the complexity of local contexts within which local stakeholders evaluate rapid boomtown‐associated community change. In total, these findings complicate the framing of unconventional gas extraction in the Marcellus Shale region, and indeed boomtown growth overall, as fundamentally polarizing issues.     

Neighborhood history as a factor shaping syringe distribution networks among drug users at a U.S. syringe exchange

Throughout the U.S., high visibility drug markets are concentrated in neighborhoods with few economic opportunities, while drug buyers/users are widely dispersed. A study of Pittsburgh Syringe Exchange participants provides data on travel between and network linkages across neighborhoods with different levels of drug activity. There are distinct racial patterns to syringe distribution activity within networks and across neighborhoods. Pittsburgh's history suggests that these patterns emerge from historical patterns of social and economic development. Study data demonstrate the ability of IDUs to form long-term social ties across racial and geographic boundaries and use them to reduce the risk of HIV transmission.     

高压天然气管道急抢修技术的应用

该文介绍了高压天然气管道的各种急抢修技术、装备及其应用实例,并指出管道急抢修技术是控制城市燃气供应风险的有效措施之一。     

燃气GIS系统建设中的项目管理探索

该文根据燃气行业信息化建设的现状及要求,结合浦东燃气GIS系统建设特性,分别从项目管理的模式组建、范围管理、时间管理、风险控制和沟通管理等方面,探讨了系统建设中采用的项目管理方法。     

Evaluation of two school‐based HIV prevention interventions in the border city of Tijuana,Mexico

This research project examined the individual and combined effectiveness of an HIV prevention workshop and a free condom distribution program in four high schools in Tijuana, Mexico. Adolescents (N = 320) completed baseline measures on sexual practices and theoretical correlates and participated in a two‐part study. In Study I, students were randomly assigned to an HIV prevention workshop or a control condition, with a 3‐month follow‐up assessment. Results indicate three significant workshop benefits regarding HIV transmission by altering sexual initiation, access to condoms, and traditional beliefs regarding condoms. In Study 2, we set up a condom distribution program at two of the participating schools, and students completed a 6‐month follow‐up assessment. Results indicate that exposure to the workshop followed by access to the condom distribution program yielded two beneficial results for reducing HIV transmission: moderating sexual initiation and increasing condom acquisition. Access to the condom distribution program alone had no effects on behavioral and psy‐chosocial correlates of HFV transmission. We discuss implications of these results.     

Evaluation of two school-based HIV prevention interventions in the border city of Tijuana, Mexico

This research project examined the individual and combined effectiveness of an HIV prevention workshop and a free condom distribution program in four high schools in Tijuana, Mexico. Adolescents (N = 320) completed baseline measures on sexual practices and theoretical correlates and participated in a two-part study. In Study 1, students were randomly assigned to an HIV prevention workshop or a control condition, with a 3-month follow-up assessment. Results indicate three significant workshop benefits regarding HIV transmission by altering sexual initiation, access to condoms, and traditional beliefs regarding condoms. In Study 2, we set up a condom distribution program at two of the participating schools, and students completed a 6-month follow-up assessment. Results indicate that exposure to the workshop followed by access to the condom distribution program yielded two beneficial results for reducing HIV transmission: moderating sexual initiation and increasing condom acquisition. Access to the condom distribution program alone had no effects on behavioral and psychosocial correlates of HIV transmission. We discuss implications of these results.