Addressing the production balancing problem

The problem of achieving a uniform flow rate through a production line and controlling in-process inventories, i.e. balancing a line, has been the subject of prior research. Much of this research has been directed at identifying “optimal” solutions to the problem. The implementation of derived techniques, however, has been ignored. Particularly, some of the behavioral factors involved with implementing a technique has been disregarded. This paper describes an approach which addresses the “balancing problem” but considers the problem of implementation. The approach specifically examines production personnel reassignments as a key implementation factor.Some prior research studies identify variable operator performance times as a key factor relating to less than uniform flow rates and excess inventories. The approach proposed in this study demonstrates that average operator performance times can be used when multiple periods are used to implement a desired solution.     

用CFX软件仿真料仓通风系统

在某塑料厂高压聚乙烯料仓安全隐患研究及治理项目中,利用CFX仿真模拟软件对料仓通风系统进行仿真分析,找出了原料仓通风系统存在的缺陷,提出几种改造设计方案,并对设计方案进行了优化筛选,通过现场实施效果良好。     

Addressing the Corrections Crisis with Software Technology

Faced with rising costs and rampant overcrowding, correctional facilities are turning to software technologies for help.     

谈信息技术与现代教育观念

一、信息时代世界教育改革态势信息技术已引起了世界全面而深刻的社会变革 ,同时也对教育提出了新的要求。据联合国教科文组织的统计 :人类近３０年来所积累的科学知识 ,占有史以来积累的科学知识总量的９０ %。可见 ,知识总量在以爆炸式的速度急剧增长 ,知识更新越来越快。教育如何面对迅速增长的知识 ?如何面对我们今天的信息时代 ?回答这些问题已经迫在眉睫。但是 ,我们目前的主要教育模式基本上是在３００多年前的工业化社会初期形成的 ,以至于我们在信息时代的新问题面前措手不及。信息技术必然会引进教育的一场革命 ,有识之士将其界定…     

Addressing the challenges of advanced packaging and interconnection

The author contends that packaging and interconnection technology is undergoing significant changes to meet the rapidly evolving requirements of portable electronics products. The need for high density and high performance at low cost demands sophisticated developments in technology. Future portable equipment packaging requirements can be met only through advanced concepts, including multichip modules, tape-automated bonding, and flip-chip assembly. Supporting technologies, such as adhesive assembly, thermal management, and design tools must also make attendant advances. Consortium-based cooperative research and development of technologies addresses these needs, while also developing the essential vendor infrastructure     

当代家庭教育观念误区浅析

良好的家庭教育对子女形成健康的个性品质、健全的人格、合理的素质结构 ,促进其健康的成长并顺利的成才 ,起着举足轻重的作用。家庭教育应避免陈旧的观念误区 ,应适应时代发展的需要 ,为子女的健康成长发挥应有的作用     

Multiline Addressing by Network Flow

We consider an optimization problem arising in the design of controllers for OLED displays. Our objective is to minimize amplitude of the electrical current through the diodes which has a direct impact on the lifetime of such a display. Modeling the problem in mathematical terms yields a class of network flow problems where we group the arcs and pay in each group only for the arc carrying the maximum flow. We develop (fully) combinatorial approximation heuristics suitable for being implemented in the hardware of a control device that drives an OLED display. M. Skutella supported by DFG Research Center MATHEON in Berlin.     

Addressing cloud computing security issues

The recent emergence of cloud computing has drastically altered everyone’s perception of infrastructure architectures, software delivery and development models. Projecting as an evolutionary step, following the transition from mainframe computers to client/server deployment models, cloud computing encompasses elements from grid computing, utility computing and autonomic computing, into an innovative deployment architecture. This rapid transition towards the clouds, has fuelled concerns on a critical issue for the success of information systems, communication and information security. From a security perspective, a number of unchartered risks and challenges have been introduced from this relocation to the clouds, deteriorating much of the effectiveness of traditional protection mechanisms. As a result the aim of this paper is twofold; firstly to evaluate cloud security by identifying unique security requirements and secondly to attempt to present a viable solution that eliminates these potential threats. This paper proposes introducing a Trusted Third Party, tasked with assuring specific security characteristics within a cloud environment. The proposed solution calls upon cryptography, specifically Public Key Infrastructure operating in concert with SSO and LDAP, to ensure the authentication, integrity and confidentiality of involved data and communications. The solution, presents a horizontal level of service, available to all implicated entities, that realizes a security mesh, within which essential trust is maintained.     

列车通信网的编址与寻址方法的研究

符合列车通信网国际标准的列车已在欧美得到了广泛的应用,为了对TCN的体系结构有更进一步的了解。对列车通信网的编址和寻址方式的研究是很有必要的。在介绍列车通信网结构、功能及特点的基础上,对基于多功能车辆总线和绞线式列车总线的列车通信网的编址和寻址方式进行了研究,并通过将其与几种流行的现场总线的编址和寻址方式的对比。研究了它们之间的差异与共同点,最后得出这种高效的列车通信网的编址和寻址方式为数据传输的实时性提供了保证的结论.     

Landsat as an aid in evaluating the adequacy of a grain silo network

First, Landsat MSS data were used to determine the area of cultivated cropland in a portion of the Eastern Highveld of the Transvaal, South Africa. A supervized Bayes maximum likelihood classification algorithm was applied resulting in classification accuracy above 75% for the study area. Second, the area of cropland thus obtained was combined with a spatially contoured surface of potential yield (per hectare) to determine the size of the potential crop of each silo service area. Third, the potential crop size was used to evaluate the adequacy of the existing silo capacity, thus serving as a possible input for planning extensions to the silo network.     

浅议电信消费心理的共性与个性特征

中国的电信业早已由卖方市场转为买方市场,消费者决定着企业的兴衰荣枯。若根据消费者的消费理念、消费需求及经济能力等,对各个目标市场的消费心理进行分析,则不难发现其中的“共性”与“个性”,由此区分出电信业务的“趋势”与“流行”,做到有的放矢地引导消费。用户消费心理的“共性”,是指市场中大多数消费者的心理与需求,是当前业务的“大趋势”。而“个性”则是少数消费者甚至极少数微观市场的需求,我们常称之为“流行”。“趋势”在现实业务中的地位极为重要,企业赖以生存;而“流行”则领导时尚,指引时代潮流,是企业明日的发展方向。…     

物联网资源寻址模型

通过分析物联网资源寻址特性,对互联网资源寻址的层次迭代模型进行扩展.提出物联网资源寻址的通用层次模型,为解决由多种物品编码标准共存而引起的物联网资源寻址的特有问题提供理论模型依据.根据此模型,建立物联网资源寻址的应用结构模型,并通过对其功能性的实现,验证了通用层次模型的有效性及可行性.     

物联网资源寻址模型

通过分析物联网资源寻址特性,对互联网资源寻址的层次迭代模型进行扩展.提出物联网资源寻址的通用层次模型,为解决由多种物品编码标准共存而引起的物联网资源寻址的特有问题提供理论模型依据.根据此模型,建立物联网资源寻址的应用结构模型,并通过对其功能性的实现,验证了通用层次模型的有效性及可行性.