Short-term scheduling of crude oil operations in refinery with high-fusion-point oil and two transportation pipelines

In some refineries, storage tanks are located at two different sites, one for low-fusion-point crude oil and the other for high one. Two pipelines are used to transport different oil types. Due to the constraints resulting from the high-fusion-point oil transportation, it is challenging to schedule such a system. This work studies the scheduling problem from a control-theoretic perspective. It proposes to use a hybrid Petri net method to model the system. It then finds the schedulability conditions by analysing the dynamic behaviour of the net model. Next, it proposes an efficient scheduling method to minimize the cost of high-fusion-point oil transportation. Finally, it gives a complex industrial case study to show its application.     

Managing security risks for inter-organisational information systems: a multiagent collaborative model

Information sharing across organisations is critical to effectively managing the security risks of inter-organisational information systems. Nevertheless, few previous studies on information systems security have focused on inter-organisational information sharing, and none have studied the sharing of inferred beliefs versus factual observations. In this article, a multiagent collaborative model (MACM) is proposed as a practical solution to assess the risk level of each allied organisation’s information system and support proactive security treatment by sharing beliefs on event probabilities as well as factual observations. In MACM, for each allied organisation’s information system, we design four types of agents: inspection agent, analysis agent, control agent, and communication agent. By sharing soft findings (beliefs) in addition to hard findings (factual observations) among the organisations, each organisation’s analysis agent is capable of dynamically predicting its security risk level using a Bayesian network. A real-world implementation illustrates how our model can be used to manage security risks in distributed information systems and that sharing soft findings leads to lower expected loss from security risks.     

社会管理法治化的基础性制度建设

推进社会管理法治化,应加强基础性制度建设。政府社会管理,重在构建民生保障和秩序保障及权力控制制度。社会自我管理,重在型构社会组织自治和城乡社区自治制度。公众参与社会管理,重在健全政府信息公开、公众参与的主体、范围、方式、回馈、效力及救济等制度。选定社会管理综合治理委员会为我国社会管理协调机构为宜。     

中国装备制造业集聚对绿色创新效率的影响效应研究

根据2005-2015年省级面板数据,采用空间基尼系数估算全国装备制造业集聚水平;采用考虑非期望产出的Super SBM 模型测度全国装备制造业绿色创新效率;采用空间计量分析方法,构建门槛面板模型,实证检验装备制造业集聚对绿色创新效率的影响效应。结果表明: 全国装备制造业绿色创新效率总体呈先升后降趋势,但地区差异明显;装备制造业集聚对绿色创新效率的影响呈显著的N型关系,具有双重门槛效应;东部、东北地区装备制造业集聚对绿色创新效率呈递增的正向非线性影响,中部地区装备制造业集聚对绿色创新效率的影响呈先降后升态势,西部地区装备制造业集聚对绿色创新效率的影响呈倒N型关系;研发投入强度、能源消耗与装备制造业绿色创新效率显著正相关,城市化水平、环境规制与装备制造业绿色创新效率显著负相关。提高装备制造业发展质量,应增加研发投入,增强自主创新能力,促进装备制造业集聚化、绿色化发展。     

"西南马克思主义经济学论坛"成立暨首次理论研讨会简述

2006年12月9日-10日,西南马克思主义经济学论坛成立暨首次理论研讨会在重庆交通大学、重庆工商大学隆重召开,来自全国各地的专家、学者及在校研究生共500余人出席了本次会议.     

卷烟企业制丝质量数据管理系统设计

质量管理是生产管理系统的核心功能,在质量管理的设计过程中我们将以生产线的过程数据为基础,把生产工艺、工艺标准、质量指标、控制环节、质量问题和关键控制设备联系起来,统一管理;在生产过程中通过数据采集来分析评估生产过程的质量数据,发现质量问题、分析质量问题,从而为用户改进产品质量提供数据保证。     

科技人才职业测评体系研究

本文围绕科技人才职业测评体系的职业价值观、职业人格、职业潜能和职业兴趣四个素质要素进行研究和论述,提出了构建科技人才职业测评四要素的指标体系.     

三种生产率与劳动价值论悖论解答

单位商品价值量与其生产者无关,而只取决于一定的社会生产条件,并与社会生产条件成反比,社会生产条件越高,单位商品价值量就越低。文章通过生产率的细分和剖析以铁的逻辑解答了劳动价值论的这一所谓悖论,并进一步阐释了国民财富的性质和原因。     

From unemployed to entrepreneur: The role of the absolute bequest motive

Using the British Household Panel Survey, this paper finds that inheritance has a concave effect on the hours worked by male entrepreneurs. Receiving an inheritance increases the labor supply of unemployed male entrepreneurs; however this effect becomes smaller for higher inheritances.