Capacity,information and minority games in public transport

Many public transport operators are faced with high peak demands. This leads to crowded vehicles and discomfort for the passengers. The increasing availability of information technologies creates new opportunities for passengers to avoid crowding and for operators to inform passengers and reallocate capacities quicker than before. We define and implement a simple model based on minority games, a class of games that deals with crowding dynamics, adapted to a public transport setting.We propose a model which includes multiple resources and heterogeneous passenger preferences. We have conducted two simulation studies, investigating the dynamics of crowding within a simplified public transport setting. In our first experiment we investigate the effect of the availability of information on crowding. In our second experiment we study dynamic optimization of rolling stock capacities. We find that both the information disclosed and the capacity optimization mechanism have an impact on the number of passengers utilizing resources and their satisfaction. As such, these models enable the development and analysis of new operator policies to deal with crowded situations.     

Valorization of carbon dioxide by conversion into fuel using renewable energy in Algeria

Reducing the emissions of the main anthropogenic greenhouse gases, such as carbon dioxide (CO₂), is one of the major challenges of this century. A partial solution to these environmental problems could be the capture and the conversion of carbon dioxide. The main objective of the present work is to study the opportunities and prospects of recycling carbon dioxide to produce synthetic fuel, particularly methanol, which is a complementary technology to carbon capture and storage (CCS). This methanol will be produced by using several renewable energies, such as solar, wind and geothermal, for the purpose of using it in the transportation sector in Algeria. In 2013, Algeria’s total amount of CO₂ emissions (created by energy consumption) was 143 million tonnes. It is estimated that 44.4 million tonnes of CO₂ can be captured from the exhaust of stationary units (factories and power stations) and converted to methanol every year. By adopting this process, approximately 32 million tonnes of methanol can be produced with an energy value of 580,000 TJ. The methanol produced from CO₂ can be used as an alternative transportation fuel. For this reason, the Geographical Information System (GIS) is used to present the spatial distribution of the methanol demand in short and long terms, based on market penetration rates, vehicle fleet and population data. An analysis of the energy balance, environment and economics of CO₂ recycling process is presented. In terms of environmental performance, the reduction in carbon dioxide emissions that come from the transport sector was remarkable in 2045.     

海事信息化项目沟通管理研究

文中以天津海事局信息化项目的沟通管理为例,分别从项目建设的启动、实施、收尾阶段,分3个层次对项目建设中的沟通问题进行深入分析,并提出了解决这些沟通问题的管理对策。     

A spatial autoregressive panel model to analyze road network spillovers on production

The production function approach is used to introduce the effect of public infrastructure on economic growth focusing on its spillover effects. We improve the existing literature both from a conceptual and methodological perspective. As regressors we incorporate variables related to the new concepts of internal and imported transport infrastructure capital stocks, which are actually used in commercial flows, calculated by network analysis performed in GIS. The internally used capital stock represents own infrastructure that benefits accessing markets within the region itself, while the imported capital stock captures the spillover effect associated to the use of the infrastructure situated in neighboring regions. From a methodological perspective, we introduce spatial interdependence into these models, applying the most recent spatial econometric techniques based on instrumental variables estimation in spatial autoregressive panel models in comparison with Maximum Likelihood estimation methods. We illustrate the methodology with Spanish provincial panel data for the period 1980–2007. Results support the hypothesis that the imported capital has a positive spillover effect on production.     

论基于网络环境下的学习适应性系统的实现

本文在描述了适应性学习系统功能的基础上,针对课程,以理论、技术与方法并重,详细论述了基于WEB 的适应性"电大信息技术"学习系统采用的知识库模型、学生、教师模型、关键技术及系统的实现方法.     

基于GIS的城市交通规划信息平台总体设计

针对城市交通规划工作中涉及到大量的数据信息,分析现有信息管理方法的不足,论述了城市交通规划信息平台应具备的基本功能,提出了利用GIS技术和数据库技术建立城市交通规划信息平台的基本方法,并进行了系统的总体结构、功能模块、扩展设计。     

非机动车计算机管理系统

上海拥有1000多万辆非机动车,非机动车的种类已经扩展到自行车、人力三轮车、电动自行车、燃气助动车和残疾人专用车5种,非机动车已经成为影响上海交通的主要因素。通过计算机系统对非机动车进行管理,无疑是较为有效的办法,事实上也确实提高了对非机动车的管理效率。     

停车诱导系统的信息处理

本文对停车诱导系统的信息处理实施方案和技术进行了探讨,提出了行程时间内的车位变化处理方法,不仅为停车诱导系统建设提供方法参考,也为停车诱导系统的未来实施技术研究确定方向.     

新时期高校档案信息资源的开发与利用

随着社会信息化的不断发展,高校档案已成为学校及社会重要的不可或缺的信息资源,被越来越多的人士所认识,因此,高校档案信息资源的开发与利用显得尤为重要。高校档案工作应以开发档案信息资源为重点,以提高档案的利用率和实现开发成果社会共享为目的,加快高校档案的开发与利用,从强化服务意识、丰富馆藏、加强编研入手,加大开发的力度,以丰富的成果为学校及社会提供优质的服务,实现信息资源成果共享,以适应新时期信息化发展需要。     

工程检测信息管理网站的构建

介绍了工程检测信息管理网站的基本内容,提出了建设工程检测专业办公网站的设想和方案,其特点在于规范性、开放性、适应性和适时性。