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精益生产系统的柔性研究——基于资源整合视角 总被引：1，自引：0，他引：1
本文从资源整合的视角出发,将精益生产系统柔性归类为资源层柔性、能力层柔性、供应层柔性以及软柔性。认为丰田公司是通过看板方式将这些柔性资源有机整合在一起,才使得精益生产系统表现出市场柔性的,适应市场竞争,同时认为精益生产系统柔性作用的发挥离不开丰田公司经营哲学和日本特殊环境支撑。 相似文献
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基于AHP方法的企业生产系统柔性评价 总被引：2，自引：0，他引：2
通过对企业生产系统柔性的分析，建立了生产系统柔性的递阶层次结构，运用层次分析法时企业生产系统柔性进行了评价，从而为提高企业生产系统柔性提供了有益的理论参考。 相似文献
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闫秀敏 《内蒙古科技与经济》2004,(Z1)
知识经济条件下 ,柔性生产以其反映迅捷、生产弹性、产品种类丰富多样等优势逐步取代刚性生产。与此相适应 ,在管理上亦需要实施柔性生产管理。由于柔性生产管理具有增强企业的应变能力、降低生产成本、适应顾客需求、保证柔性管理实现等方面的重要作用 ,所以我们必须通过提高员工素质、培育虚拟企业、进行业务流程重建、重视发展技术基础等途径以有效实现企业的柔性生产管理 相似文献
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在语音识别系统中,往往需要对输入的语音信息进行数据预处理操作,删除冗余的、不相关的特征值.针对传统应用于语音系统中特征选择算法中出现的效率低、错误率高的缺点,本文提出了基于信息增益的特征选择算法.该算法通过信息增益评价指标对属性进行排名及评价,选择最优的特征属性并删除无用的属性.通过大量的对比实验结果表明,本文提出的算法可以高效地完成特征选择语音数据预处理,并且提出的新算法与传统的特征选择算法选择出的特征属性应用在语音识别算法后能够更准确地识别和判断语音信息. 相似文献
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随着全球化市场的普及和各行各业竞争的加剧,制造行业也在积极寻求创新与突破,为了解决制造行业普遍存在的订单处理过程繁琐,信息传递缓慢,质量监管不到位等问题,企业纷纷开始实行柔性作业车间调度进行管理。通过调研基于订单生产的乘用车制造企业X生产模式的弊端,利用柔性车间调度方法对其进行系统分析,组织作业流程图,改进其生产计划控制流程,有效改善了X企业的生产模式,提高生产效率,使该公司可以更好应对市场需求变化所带来的挑战。 相似文献
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This paper investigates the problem of event-triggered filter design for nonlinear networked control systems (NCSs) in the framework of interval type-2 (IT2) fuzzy systems. A novel IT2 fuzzy filter for ensuring asymptotic stability and H∞ performance of filtering error system is proposed, where the premise variables are different from those of the fuzzy model. Attention is focused on solving the problem of event-triggered filter design subject to parameter uncertainties, data quantization, and communication delay in a unified frame. It is shown that the proposed event-triggered filter design communication mechanism for IT2 fuzzy NCSs has the advantage of the existing event-triggered approaches to reduce the utilization of limited network resources and provides flexibility in balancing the tracking error and the utilization of network resources. Finally, simulation example is given to validate the advantages of the presented results. 相似文献
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王福和 《科技成果管理与研究》2009,(6):64-65,68
本文通过天津地方铁路数字专用调度通信系统介绍了铁路数字调度网的构成,系统信道分配及可靠性分析,数字调度的功能,以及今后发展使用过程中需要完善的问题,以与读者探讨。 相似文献
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通过评价我国碳减排技术研发效率,探索促进二氧化碳减排的可行技术路径。基于不同的技术减排机理,将碳减排技术分为能源生产技术和能源利用技术,并利用DEA窗口模型对2005一2017年的碳减排技术研发效率进行了评估。结果发现,(1)研究期内,能源生产技术研发效率总体上没有取得进步,基本上维持在0.77左右,能源利用技术的研发效率有明显提升,从0.58.上升到0.78。(2)不管是能源生产技术还是能源利用技术,纯技术效率达到有效的年份都很少,表明研发资源配置不合理、管理效率低是造成部分年份能源生产技术和能源利用技术研发效率偏低或波动的主要原因。(3)能源生产技术方面,纯技术效率、规模效率最低的是煤炭开采和洗选业;能源利用技术方面,纯技术效率、规模效率最低的是黑色金属冶炼和压延加工业。因此,我国应加大煤炭清洁生产技术研发投入和加快钢铁等高耗能、高排放产业领域落后产能的淘汰力度。 相似文献
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The management of intellectual capital (IC) resources increases organizational value creation capacities. The aim of this study is to present an algorithm for analysing IC management with an emphasis on the recognition and modelling of growth mechanisms for strategic resources. Intensive interactions among different tangible and intangible assets turn organizations into complex systems of highly interrelated resources; therefore, a systems approach is adopted, and a causal loop diagram is used to model resource interaction feedback structures. The development and analysis of the resource interactions model is explained through a practical algorithm that reveals different dimensions of resource deployment, including the potential value of resources, utilization of resources in key business processes, and mechanisms responsible for the sustained growth of strategic resources. The proposed algorithm was used to examine a telecommunication company. We show that there are no growth mechanisms for certain strategic resources. To activate the growth of such strategic resources, several feedback loops are recognized and related initiatives are proposed. 相似文献
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There are significant regional disparities in the level of technology availability and utilization in China. This study analyzes determinants of technology availability and utilization in China's 31 administrative units using data on technology adoption and socioeconomic factors. It examines the extent of spatial autocorrelation on technology levels and regression residuals, and provides exploratory spatial cluster analysis of technology attributes interpreted by four regional policy approaches. An exploratory conceptual model is established, based on diffusion of innovations theory and prior digital divide research. Regression findings indicate the most significant determinant of technology availability and utilization is export commodities value. This is followed by published books, tertiary employment, non-state-owned employment, and innovation funds of enterprises. The conceptual model is discussed in light of these findings and suggestions are offered for China's technology policy. 相似文献
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黄河流域能源矿产资源丰富,风、光、水能富集,电力产业发展基础良好、历史悠久。能否充分发挥电力产业经济、社会积极效益,严控生态环境负面影响,对黄河流域生态保护和高质量发展意义重大,也关乎我国能源供应与安全保障的整体格局。文章通过对6 000千瓦及以上电厂微观数据的分析,从电厂建设、电力生产等方面刻画了2003—2017年黄河流域电力产业时空发展格局。当前,黄河流域电力产业时空发展格局的形成主要受到资源禀赋和用电需求的双重影响。黄河流域电力产业现存问题主要表现在水电增量空间较小、火电装机过剩且发电效率偏低、风电和光电消纳不足。为了实现电力产业绿色化发展,应推动火电去产能,实现火电清洁高效利用,通过电力改革和制度创新,推进资源型产业融合发展;通过"煤电灵活性改造""水光互补"等手段,解决风电和太阳能发电消纳问题,协调风电和光电发展过程中形成的矛盾问题;推动电力技术进步和体制机制创新带动区域发展。 相似文献
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Droplet-based microfluidic technology has enabled the production of emulsions with high monodispersity in sizes ranging from a few to hundreds of micrometers. Taking advantage of this technology, attempts to generate monodisperse emulsion drops with high drug loading capacity, ordered interfacial structure, and multi-functionality have been made in the cosmetics industry. In this article, we introduce the practicality of the droplet-based microfluidic approach to the cosmetic industry in terms of innovation in productivity and marketability. Furthermore, we summarize some recent advances in the production of emulsion drops with enhanced mechanical interfacial stability. Finally, we discuss the future prospects of microfluidic technology in accordance with consumers'' needs and industrial attributes. 相似文献
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This paper addresses the flow control design of a connection-oriented communication network from the robust control theory perspective. Network is modelled as a nth order discrete system whose first order model is obtained using the two-time scale property associated with the process. The proposed scheme is characterised by an equivalent control based discrete sliding mode design for the first order model which is applied to nth order systems through aggregation. Besides its design simplicity, the proposed method exhibits finite time convergence property for the states while applied to the full order system emulating the characteristics of terminal sliding mode in a certain way. Simulation results via Matlab and ns-2 validate the efficacy of the proposed algorithm as an effective flow controller for connection-oriented networks. 相似文献