天然气工业用户峰谷分时定价多目标优化模型

制定合理的天然气分时定价政策,能够优化资源配置,保证城市天然气管网稳定运行,从而缓解城市“气荒”现象,促进燃气产业健康发展。为此,在考虑用户响应行为的基础上,以最小化最大峰负荷和峰谷负荷差为目标,以燃气公司利益、用户利益,以及政府对天然气价格的限制为约束条件,建立了峰谷分时定价的多目标优化模型,运用遗传算法与Pareto排序相结合的方法对其进行求解。并且,将该模型应用于一个案例,将一天24小时划分为峰、平、谷三个时段,按照“量大价高”的原则实施分时定价政策。结果表明:在保证用户和燃气公司同时获益的情况下,存在最优的峰、平、谷价格,使得最大峰负荷和峰谷负荷差能有效降低,验证了多目标优化模型的有效性和可行性。     

泛渤海区域空间结构调整基本思路研究

划分区域的目的就是要政府协调解决其内部存在的主要矛盾和问题。立足于环渤海地区需要协调解决的突出问题,首先分析指出环渤海的范围主要应包括北京、天津、河北、山东、山西、内蒙中部4市,而不应包括辽宁。为与通常意义的环渤海有所区别,建议用“泛渤海”指代该区域。结合区域内现有的空间结构和发展趋势,提出了按照“四区五带”的总体空间架构调整目前的空间结构。随后的分析中重点阐释了城镇体系和产业布局的基本思路。     

珠三角制造业竞争力提升探讨——以绿色技术创新为视角

基于绿色技术创新的视角,分析珠三角制造业具有的优势和存在的问题,并结合新时期其所面临的绿色挑战来探讨珠三角制造业竞争力的提升,最后对如何提升珠三角制造业的竞争力提出政策和建议。     

绩效与不足:成都会展业现状分析

近年,成都会展业发展迅速,多种会展经济形态得到全面发展,展览场馆数量较足,政府主导大型展会以及多层次的会展人才培养体系对会展业快速发展提供了必要的保障。然而,成都会展业仍然存在着品牌化和国际程度不高、场馆规模小和利用率较低、政府管理理念仍需创新、"产学研"结合不紧密等问题。本文通过分析当下成都会展业的绩效与不足,希望能为优化成都会展经济的产业结构、促进会展产业的转型和品牌升级提供有益的参考。     

Delay causes analysis in complex construction projects: a Semantic Network Analysis approach

Delays are among the most crucial adversaries to the success and performance of construction projects, making delay analysis and management a critical task for project managers. This task will be highly complicated in large-scale projects such as construction, which usually consist of a complex network of heterogeneous entities in continuous interaction. Traditional approaches and methods for the analysis of delays and their causes have been criticised for their ability to handle complex projects, and for considering the interrelationships between delay causes. Addressing this gap, this research introduces an alternative approach for delay causes analysis by adopting Semantic Network Analysis (SNA) method. The paper reports the results from an investigation of delays in construction projects in the Oil-Gas-Petrochemical sector using SNA. The method’s capacity to identify and rank delay causes, which can assist managers in selecting appropriate measures for eliminating them, are empirically examined and discussed. The paper argues that SNA leads to a more comprehensive understanding of the main causes of delay in large and complex projects, allowing a better identification and mapping of the interrelationships between these discrete factors.     

比较优势：湖南文化产业创新战略的立足点分析

湖南文化产业经过多年的发展,取得了一定的成绩,与其它地区相比,具有资源、人才、基础设施、消费需求和试验区政策等方面的比较优势。这些比较优势是湖南制定文化产业创新战略的立足点。     

社会工作介入山西煤炭污染防治的可能性研究

社会工作就是以利他为行为动机,通过运用专业的知识、技巧和方法,达到解决社会问题、增强案主的社会功能之效果的一种助人服务活动.不管是从社会工作的发展趋势来看,还是从社会工作对象、社会工作功能上来讲,在山西煤炭污染防治的过程中,社会工作的介入都是具有可能性的.     

河北省文化产业视域中的少儿综合素质教育

文化的产业化发展给中国文化教育事业提出了许多值得思考的问题.具有河北文化传统和文化特色的少儿综合素质教育,在河北文化产业发展中居于什么地位?具有何种职能?拥有怎样的发展机遇?本文以文化产业的理论视角,从少儿综合素质教育与文化教育生产力、当代科技、文化资源、文化市场四个方面,初步提出了发展少儿综合素质教育的新思路.     

西藏产业结构优化与主导产业选择

文章运用产业结构理论,对西藏产业结构所处的工业发展阶段、三次产业产值结构和就业结构的变动进行了总体评价.最后,通过科学选择西藏产业结构优化的战略导向,利用区位商方法,着重分析了西藏产业结构优化过程中的主导产业问题,由此确立了西藏工业经济应该培育和扶持的一级和二级主导产业部门.     

Legitimate concerns about industry involvement in gambling research: response to Delfabbro and King (2017)

This paper provides a response to the commentary by Delfabbro and King (2017), which describes major criticisms of articles situated in a ‘political economy’ conceptual framework. The current paper argues that these criticisms obfuscate legitimate concerns about industry involvement in gambling research, and disregard important evidence about activities of hazardous-consumption industries which provide grounds for strong concern about commercial practices of the gambling industry. Although many aspects of the commentary by Delfabbro and King (2017) are contentious, the current paper summarizes conceptual and empirical literature which supports concern about (a) agency and collaboration in practices of the gambling industry, which make assertions of equivalence with a conspiracy theory both inappropriate and misleading, and (b) the role of research on problem gambling behaviours and pathologies in supporting agendas that may undermine public health. This indicates the need for the scientific community to take seriously its role in improving awareness of the hazards of commercial involvement in gambling research, and thus helping researchers to make informed decisions about these risks and their own manner of engagement with the gambling industry.