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错过了清早的晨曦,错过了正午的骄阳,错过了夕阳的绚烂,错过了暮色中的朦胧,也许还会错过迷人的月色. 错过了春日的烂漫,错过了夏季的奔放,错过了秋天的丰硕,错过了冬日的凛冽,也许还会错过春夏秋冬转换的空隙. 相似文献
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徐静 《中国电力企业管理》2010,(9)
清晨冷丁醒来,几点了?立马儿起身,跑向书房。匆忙中看了一眼方厅的钟,坏了,6点10分了,我的菜啊!打开电脑,上网。果不其然,我种的萝卜6点成熟,现在,过了十分钟,已经被网友偷了个够。自从弟弟去年十一来我家,教会了我在网上 相似文献
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本文就太钢集团原费用报销流程存在的问题进行了剖析,并就完善资金管理信息系统,结合贷记卡的透支功能、银行系统"公转私"功能的应用,对如何实施新业务流程进行了论述。通过报支系统简化了业务流程,提高了工作效率,规避了坏账风险,减少了资金占用,降低了财务费用。 相似文献
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互相推诿的事少了,高效办结的事多了;无所事事的少了,埋头苦干的人多了;斤斤计较的人少了,吃苦奉献的人多了。广西兴宾供电公司以转变作风为支撑点,以企业发展为落脚点,转作风、破难题、促发展,全力打造一支"高效、好学、谋发展"的干部员工队伍,推动了各项工作健康发展。 相似文献
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张海洋 《中国电力企业管理》2012,(12):1-1
年关又至,盘点2012年的电力工业,可用波澜不惊形容。煤价下来了,发电企业的日子宽松了一些,有了更大的空间来调整优化资产结构;新能源不景气,但毕竟比例还小;供电没像去年一样出现电荒,经济下滑,用电量增幅小了,供电企业抽空上了几个关系国计民生的大项目,为电力行业争光不少。只是到了年底,一些关于改革的窃窃私语,让改来改去改了十年的电力人心里有了一丝忐忑。 相似文献
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<正>"生活都是黑暗的,除非有了希望;希望都是盲目的,除非有了知识;知识都是无用的,除非有了工作;工作都是空洞的,除非有了爱。"生活都是黑暗的,除非有了希望;希望都是盲目的,除非有了知识;知识都是无用的,除非有了工作;工作都是空洞的,除非有了爱。"——摘自《先知》 相似文献
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针对具有状态时滞特性的非线性离散系统,利用线性矩阵不等式的方法和Lyapunov稳定性理论,研究了基于状态反馈的非线性系统模型预测控制问题。基于T-S模糊模型对非线性离散系统进行描述并给出一种"min-max"预测控制算法,采用模型预测控制与模糊理论相结合的方法,利用平行分布补偿的原理,通过在每一个采样时刻优化无穷时域的性能指标,来求解在范数有界条件下相应的状态反馈控制律,讨论了预测控制器的设计问题,分析了此设计问题的可解性,给出了状态反馈控制器基于线性矩阵不等式的设计算法,保证了系统的稳定性,通过仿真实例证明了所提控制算法的有效性及系统的稳定性。该方法能够在化工、冶金、机械等具有时滞特性的工业生产过程中得到很好的应用。 相似文献
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企业战略管理模型:战略—文化—结构 总被引:14,自引:0,他引:14
在企业环境日益复杂多变的今天,如何从战略上管理企业已成为一个迫切而重要的问题。本文首先指出战略管理时代的来临,并认为企业战略管理实质上是指对企业的战略性管理。在此基础上,提出了一个以战略、文化、结构为顶点的企业战略管理三角形模型,并阐述了该模型的理论和实践意义。 相似文献
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This paper focuses on the joint pricing and procurement of fashion products in the existence of clearance markets. It is assumed that the expected regular season demand is a linear decreasing function of the price and the end of period excess inventory is sold at a known discounted price in a clearance market where the demand is a random variable that follows a general distribution. It is shown that the expected profit function is unimodal and the optimal procurement quantity and price can be found from the first order conditions. Existence of a clearance market increases the profit, price, and the procurement quantity. In order to prove this, the optimal procurement and pricing policy of a price-setting retailer who does not have a clearance market is provided. As opposed to the literature, it is shown that the expected profit function of this problem is unimodal as well. A numerical study demonstrating the magnitude of the increase in profit, procurement quantity, and price is reported. 相似文献
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为保证印刷电路板组件(printed circuit board assembly,PCBA)的功能性完备,在装壳前需对其进行功能测试,而当前生产线主要由人工测试分拣,效率低下,为此,设计了一种能够自动扫码、测试、分拣的自动控制系统。选用西门子S7-1200PLC作为控制器,WinCC组态软件作为上位监控系统,PLC与WinCC之间采用OPC的方式实现通信,采用VBS编程调用MSComm控件实现WinCC与测试工装和扫码枪之间的串口通信。测试结果表明,系统运行稳定,具有很好的实用性、可靠性。系统的使用能减少人力的投入,降低操作人员的劳动强度,提高生产效率,可在PCBA模块生产线中广泛使用。 相似文献
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In this study, both deterioration and present value are considered to derive an economic time supply when there is excess inventory. An excess inventory model is developed for a deterministic perpetual inventory system. Our goal in this research is to maximize the net benefit during the infinite planning horizon. Numerical examples are provided lo illustrate the theory, ft is demonstrated that the percentage of extra net benefit when present value is considered is at least 24%. The percentage of the extra net benefit when deterioration is considered is over 16%. When both present value and deterioration are considered, the net benefit increase is over 50%. Thus the consideration of present value and deterioration is significant. 相似文献
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Philip A. Scarf Cristiano A.V. Cavalcante 《International Journal of Production Economics》2012,135(1):372-381
Heterogeneity in component and maintenance quality is considered in the context of age-based inspection and replacement for a single component system. A three-state component failure model is assumed, with a defective state preceding the failed state. Heterogeneity in maintenance intervention is modelled by supposing that inspections may induce the defective state. Component heterogeneity is modelled by supposing that the population of components comprises a mixture of the weak and strong, and that the mixing proportion and cost of components vary between suppliers. Within this framework, the impact, on system reliability and cost, of switching component or maintenance supplier is determined. Broadly, our finding is that one is much more inclined to switch supplier in order to obtain higher quality maintenance than to obtain higher quality components. A gas pressure control valve is used to illustrate our ideas. 相似文献