我国钢铁企业环境与经济协调发展评价分析

钢铁企业的环境与经济协调发展是钢铁企业实现可持续发展的重要途径,也是可持续发展的基本要求.在构建钢铁企业环境与经济协调发展评价指标体系的基础上,运用环境与经济协调发展评价模型对我国钢铁企业进行了系统分析,确定了我国钢铁企业环境与经济的协调程度.     

福建省城乡经济协调发展的评价与分析

在城乡经济协调发展内涵的基础上,构建了城乡协调发展的评价指标体系和评价模型,并根据福建省经济发展阶段确定了城乡协调发展的评价标准.对福建省城乡经济协调发展水平进行分析,结构显示出福建省城乡经济整体的协调性不高,主要表现在城市化进程的滞后和农业发展缓慢造成的乡村经济的落后,且福建省城乡经济发展沿海地区协调性明显较内陆地区好.提出福建省城乡经济协调发展的对策和建议:首先城乡的协调并不只城乡关联,还包括城与城,乡与乡的关联互动;其次要进行空间分类指导,统筹全省不同区域的城乡发展;第三要加快城乡平衡的基础设施和制度的完善,促进城乡要素的合理流通和城乡居民生存发展条件的平衡.     

Coordinated Logistics Scheduling for In-House Production and Outsourcing

In this paper, we address a new scheduling model for a firm with an option of outsourcing. A job can be processed by either in-house production or outsourcing. All outsourced jobs have to be transported back to the firm in batches, and the transportation costs have to be taken into account. We model the situation as a scheduling problem with transportation considerations. We discuss four commonly used objective functions, and solve them by dynamic programming algorithms. Note to Practitioners-An efficient supply chain management needs the coordination of production and transportation. Such problems exist in many different scenarios. This research considers a particular problem for a firm that has an option of using a subcontractor to fulfill part of its orders. The production schedule has to be coordinated with logistics issues for the transportation from the subcontractor to the firm. The purposes of this paper are twofold. First, we build models and provide optimal solutions for the specific cases discussed in this paper. Second, we hope to raise the issue of coordinated logistics scheduling, and motivate future research on more complicated models.     

Sustainability SI: Logistics Cost and Environmental Impact Analyses of Urban Delivery Consolidation Strategies

Among new, innovative city logistics strategies, urban delivery consolidation has received increasing academic and practical attention mostly in Europe and Japan. It is believed to bring cost savings and environmental benefits with the right setting. This paper demonstrates an alternative modeling framework to examine, from the strategic planning perspective, the effectiveness of urban delivery consolidation in terms of monetary logistics cost, energy consumption and PM_2.5 emissions with respect to a number of operational (e.g., rent cost, customer demand) and policy factors (e.g., commercial vehicle size restriction in city centers). The framework consists of two key modeling components: the Continuous Approximation (CA) method to model urban delivery (the so-called last-mile delivery) and the Motor Vehicle Emission Simulator (MOVES by the U.S. Environmental Protection Agency) to estimate the energy consumption and PM_2.5 emissions associated with the logistics activities. It is found that the potential logistics and environmental benefits of UCC could come from either improving the utilization of the vehicle capacity through consolidation, or shifting the more expensive storage cost from customers in the city center to the less expensive UCC rent cost—due to a less centralized location and/or government subsidy or other cost sharing mechanisms—outside of the city center. However, UCC could achieve those benefits compared to non- consolidation strategies only under certain conditions, for example when there is an economy of scale or high customer density (i.e., high shipping volume) in the service area. The paper discusses in detailed under what assumptions and conditions UCC could work. Study limitations and future work are also presented.     

Toward a Model of Intelligence as an Economy of Agents

A market-based algorithm is presented which autonomously apportions complex tasks to multiple cooperating agents giving each agent the motivation of improving performance of the whole system. A specific model, called The Hayek Machine is proposed and tested on a simulated Blocks World (BW) planning problem. Hayek learns to solve more complex BW problems than any previous learning algorithm. Given intermediate reward and simple features, it has learned to efficiently solve arbitrary BW problems. The Hayek Machine can also be seen as a model of evolutionary economics.     

Development of RFID-based Reverse Logistics System

Reverse logistics, which is the management or return flow due to product recovery, goods return, or overstock, form a closed-loop supply chain. The success of the closed-loop supply chain depends on actions of both manufacturers and customers. Now, manufacturers require producing products which are easy for disassembly, reuse and remanufacturing owing to the law of environmental protection. On the other hand, the number of customers supporting environmental protection by delivering their used products to collection points is increasing. According to the findings, the total cost spent in reverse logistics is huge. In order to minimize the total reverse logistics cost and high utilization rate of collection points, selecting appropriate locations for collection points is critical in reverse logistics. This paper proposes a genetic algorithm to determine such locations in order to maximize the coverage of customers. Also, the use of RFID is suggested to count the quantities of collected items in collection points and send the signal to the central return center. This can facilitate the vehicle scheduling for transferring the items from collection points to the return center. The significance of this research is the proposal of RFID-based reverse logistics framework and optimization of locations of collection points which allow economically and ecologically reasonable recycling. Simulation results indicated that the genetic algorithm is able to produce good-quality solutions in terms of coverage of collection points by choosing suitable locations for collection points and RFID can help detect the quantity of returned products so as to increase efficiency of logistics operations.     

城市生态艺术协调发展研究--以衡水市为例＊

城市生态艺术与传统的环境美化不同,它更注重城市规划中生态、环境与艺术审美的融合。随着城市化进程的加快和人们生活水平的不断提高,城市环境问题逐渐受到了社会各界的关注。实现城市生态与艺术的协调发展,将成为城市生态文明的重要研究方向。     

电子商务物流软件系统开发应用

物流管理信息系统设计的目的是构建一个开放的电子商务物流平台,方法是以计算机技术为支持,通过对物流配送的各环节进行资源最优配置,需要将开放性、协调性和有效性作为系统开发的总体目标,有利于物流信息化的发展.物流软件系统开发主要目标是基于SCM的物流信息平台,着眼于整个供应链各个节点的信息收集和信息共享,采用先进的数据分析、数据统计等技术对信息进行综合处理、存储和利用,为用户提供信息服务和决策支持,降低物流成本.     

信息网络经济下实体经济和虚拟经济的均衡发展研究

本文在对信息网络经济、虚拟经济和实体经济概念进行界定的基础上,分析了全球和我国信息网络经济、虚拟经济和实体经济发展规模和现状,并对信息网络技术引发的虚拟经济和实体经济均衡发展中的问题进行了解析,以平均利润率作为虚拟经济和实体经济均衡发展标志,提出了相关政策建议。     

利用VBA对物流管理软件的设计与研发

在物流管理中的决策变量和约束条件多到几十个、几百个,甚至成千上万个,这些问题不是人力所能解决的。但随着电子计算机的发展和介入,及计算技术的不断提高,大量以前可望而不可及的一些实际问题和模型已经可以解决,从而获得了巨大的经济效益,本文对利用VBA对物流管理软件的设计与研发进行了探讨。     

基于Java的物流信息系统开发及应用

以实际大型物流企业基于中心分拨理论的运输需求为基础,建立了为物流企业服务的商用物流信息服务系统。完成Unix系统下基于W ebSphere、Oracle及通讯服务器的物流信息系统软件开发,全面支持物流企业的业务运行。系统具有运输货物管理、车辆管理、人员管理、车辆监控调度、财务管理、数据统计等功能。目前系统已应用于某大型物流企业,其业务范围覆盖东北、华北、华东、华南、西南等60多个城市,系统实际运行稳定,对提高物流企业的信息化管理及客户服务水平,降低成本,提高效益具有积极意义。     

基于PCI8134的多轴联动控制系统的设计与开发

设计了一种基于PCI8134运动控制卡的多轴联动控制体统,详细介绍了系统各部分硬件组成及功能,利用VB开发应用软件,具体阐述了控制系统中多轴联动的实现原理和过程。     

论可持续发展背景下经济发展与环境的协调

从经济分析的角度,作者分析了可持续发展过程中环境恶化的经济原因,即市场失灵和政府失灵;揭示出经济发展与环境保护之间存在的倒U型曲线的内在关系。     

基于多指标综合评价的城乡协调发展分析

以广东省廉江市为研究对象,参照城乡协调发展的内涵和目标,构建廉江市城乡协调发展水平评价体系,从经济发展、产业发展、居民生活、生态环境等方面设置4个一级指标和22个二级指标,采用多指标综合评价法对廉江市城乡协调发展水平进行评价。结果表明,廉江市2008—2012年城乡协调发展水平不断提高,呈现出3大特点,但同时也存在需要解决的问题。     

计算机网络技术在物流经济领域中的应用特点及其作用

文章首先介绍了计算机网络技术以及物流信息化的基本概念,并客观描述了物流信息化的现状,又概述了物流信息化的特点或基本组成,最终阐明计算机网络技术在物流经济领域中的作用。     

基于主成分聚类算法的陕西省环境协调性分析

环境问题是21世纪全世界面临的重大课题,将数据挖掘技术用于对环境问题的研究极大地促进了环境问题中定性研究与定量研究的结合.在充分调研分析的基础上选取了衡量陕西省11地市环境污染与治理状况的两套指标体系,首选用主成分分析法对指标体系进行降维处理;其次采用聚类方法将其分为三类,结合当地实际,通过环境污染与治理现状的对比分析可以有效衡量各地区环境污染与环境治理协调发展的程度,仿真实验结果与实际情况基本相符,并在此基础上提出了具有参考价值的建议,为相关部门提供决策支持.     

Toward a Service-Oriented Development Through a Case Study

The rapidly emerging technology of Web services paves a new cost-effective way of engineering software to quickly develop and deploy Web applications by dynamically integrating other independently developed Web-service components to conduct new business transactions. This paper reports our efforts on designing and developing a Web service of pass-through authentication (PTA) for 12 online electronic-payment Web applications. In accordance with how a PTA service is developed and integrated with a corresponding back-end e-payment system, our strategies can be categorized in three stages: end-to-end integration stage, Web-services-enabled stage, and Web-services-oriented stage. Derived from real-world industrial experience, this three-stage pathway can be applied to a broad range of Web-application development projects to guide smooth transformation from a specific application-oriented design and development model toward a reusable Web-services-oriented model. Furthermore, this paper contributes to an engineering process that leads to practical Web-services-oriented software development. New research issues revealed by this project are also reported.