供应链环境下制造企业物流系统设计研究

针对网络时代物流的新特点,提出了供应链环境下的物流系统设计目标,并从战略、战术、操作三个层面描述了设计的主要内容,从整体上勾勒出供应链环境下的物流系统设计工作的轮廓。     

加强电力购销合同管理 规范电力经营行为

电力购销合同 ,关系到电网经营企业的长远利益和广大电力用户根本利益 ,在电网企业经营中占据重要地位。本文指出目前电力购销合同签约、履行中存在的问题 ,探讨了电力购销合同签约、履行过程中应遵循的原则、具体方法等     

The Skin Blood Supply Factor (SBSF): a useful index for hyperaemia-producing fitness cosmetics

While topical agents cannot really ensure an adequate nutrition of the skin, the natural skin function can at least be stimulated by hyperaemia-producing substances for topical use, which act on the peripheral circulation and thus promote regeneration and nutrition of the skin. In studies involving male and female sports students a given product was applied to the thighs and abdomen. Prior to and 1 h after application skin temperature was measured at accurately defined sites. The quotient computed between the maximum temperatures at treated and untreated test sites was defined to be the Skin Blood Supply Factor. Within the limits of this definition, maximum temperatures of 32.45° C and 32.25° C in treated and untreated skin areas, respectively, give a Skin Blood Supply Factor of 1.04. This is equivalent to a product-induced temperature rise of 4%. Our tests showed that for a physiological effect to be achieved the factor must not be lower than 1.02. In view of peripheral vascular function and considering that product application is virtually unlimited, a factor of 1.08 should not be exceeded. Le facteur d'activation de la circulation sanguine cutanée (SBSF): un indice pour le développement de produits cosmetiques hyperhemiants.     

浅谈施工项目的物料管控

物料管理和控制是整个施工项目生产管理的核心内容。管理好物料,对于项目施工的成本、利润、工程质量乃至后续的发展具有决定性作用。本文通过对物资管控内容的分析,探索提高施工项目物料管控能力的途径。     

信息技术与企业管理

本文阐述了信息技术与企业管理的关系和相互作用,Internet技术带来的管理思维、变革.介绍了基于信息技术的面向需求链管理一体化的企业管理信息系统的基本框架和实施步骤.     

Reducing dependence on oil imports

The legacy of higher oil prices left by the 1970s has the oil importing economies reeling, with another unexpected oil supply interruption threatening a knockout during the 1980s. Policies designed to reduce the level of oil imports have been the subject of intensive study, but disagreements over their desirability has led to policymaking paralysis on the part of the major oil importing nations. These disagreements have often resulted from differing views about how the world oil market works. This paper considers a number of oil import reduction measures within a common framework that allows the effects of alternative assumptions about the world oil market to be investigated. Results from that framework suggest that there are many things that can be done to reduce dependence on oil imports with little cost and significant potential benefits under all but the most pessimistic world oil market assumptions.     

贵金属资源及供需形势

本文详细的分析了世界金属资源及供需形势。     

数控内圆磨床的故障分析及处理

从瑞士进口的２００ＣＮＣ数控内孔端面磨床，经长年使用故障不断，本文从其控制原理分析入手，并经过实际的测量，详尽地叙述了各种故障产生的原因，提出了相应的处理办法。     

一种单片机断电保护检测器的研制

本文介绍了一种简单实用的单片机断电保护检测器。文中对其电路原理、结构和特点作了描述。使用实践证明，该断电保护检测器具有电路简单、稳定可靠、实用性强等特点。它具有很高的实用价值。     

超精密切削用车床微量刀架系统研究

给出了一种新颖的微量车床刀架系统，该系统由PZT（piezolectrictransducer）驱动的X－Z二维微进给工作台和Y向的微调对刀装置组成。微量工作台的两个方向均采用三个弹性元件的非对称式新型结构，这种新结构使刀具安装面位于工作台的一个角落，方便了刀具的安装。Y向微调机构利用差分螺纹调节原理使粗精调集为一体，结构紧凑，调节方便。