浅谈如何搞好加油站的风险评价

阐述了加油站实施HSE管理，进行加油站风险评价的必要性，介绍了评价方法及其应用范围，评价组织的建立和工作流程及注意事项，指出：进行加油站风险评价，在选择评估方法时应从加油站的生产实际出发，针对不同的区域，采用适当的，可操作的方法；找出身边存在的危害因素，采取适当的措施来控制和化解风险，提高加油站安全管理水平，才能适应加入WTO后所面临的挑战。     

国有基层水管单位困境及其出路

针对贺州地区基层水管单位存在的农业水价低、水费征收难和经济困难等现状,对基层水管单位的出路进行了一些探索,提出了一些解决对策。     

军事科研项目中软件项目管理方法研究

列举分析了目前软件开发中存在的问题，提出了在军事科研项目中，对软件项目实施管理的方法，应用先进的软件项目管理理论和方法，有效的提高软件开发效率，确保软件质量。     

条件概率关系数据库模型

现实世界中大量存在着的不确定性信息，关系数据库模型仅视它们为空值，有必要增强其处理这类信息的能力，文章在总结前人工作的基础上推广关系数据库模型，创建有效处理随机型不确定性信息的条件概念关系数据库模型，该模型通过在关系模式中增加一个条件概率测度属性，为每条记录指定适当的条件概率的途径，来表示不确定性信息。文中以对象码为基本工具，创建了条件概率关系结构；以特征函数为基本工具，定义了一套基于该结构的代数运算规则。条件概率的语意比概率的语意广泛，灵活，因而该模型能有效克服概率关系模型的许多不足。     

对流域水电建设档案科学管理的研究

介绍清江公司从流域水电建设的特点出发,研究流域水电建设工程档案的完整性、准确性,确保工程质量,提高工程管理水平,将大量的档案信息资源转化为科学知识,为流域水电开发服务,取得显著的经济和社会效益的情况。     

WLAN网管系统的现状和发展

2001年以来，全球WLAN（无线局域网）市场应用的瓶颈被打破，中国也迎来了WLAN商业化运作和服务的春天，WLAN为我们带来了一种全新的、灵活的工作方式，同时也带来了新的挑战，本文将对WLAN网络管理的主要内容和具体指标进行阐述，并对各大厂商的WLAN网管产品进行简单介绍和比较。     

中国石油未来油气勘探重点领域分析

根据近几年来的研究认识与勘探成果分析,未来几年中国石油油气勘探主要集中于如下五大重点领域:大面积低渗透岩性油气藏、成熟区复杂隐蔽油气藏、前陆盆地复杂构造油气藏、海相碳酸盐岩油气藏和渤海湾滩海第三系油气藏。     

关于化粪池几个问题的探讨

探讨化粪池在设计布置及使用管理中应注意的几个问题，以充分发挥化粪池在保护环境，减轻污染方面的作用。     

Spare parts inventory management with demand lead times and rationing

We study an inventory system that consists of two demand classes. The orders in the first class need to be satisfied immediately, whereas the orders in the second class are to be filled in a given demand lead time. The two classes are also of different criticality. For this system, we propose a policy that rations the non-critical orders. Under a one-for-one replenishment policy with backordering and for Poisson demand arrivals for both classes, we first derive expressions for the service levels of both classes. The service level for the critical class is an approximation, whereas the service level for the non-critical class is exact. We then conduct a computational study to show that our approximation works reasonably, the benefits of rationing can be substantial, and the incorporation of demand lead time provides more value when the demand class with demand lead time is the critical class. The research is motivated by the spare parts service system of a major capital equipment manufacturer that faces two types of demand. For this company, the critical down orders need to be satisfied immediately, while the less critical maintenance orders can be satisfied after a fixed demand lead time. We conduct a case study with 64 representative parts and show that significant savings (as much as 14% on inventory on hand) are possible through incorporation of demand lead times and rationing.     

Object-oriented DBMS requirements

The requirements on an object-oriented DBMS for management of information in a large, complex enterprise are presented. These requirements aid in the achievement of an environment characterized by data sharing, open architectures, application and data portability, and assurance of data integrity. They were defined from the point of view of a user of the DBMS; therefore they describe the expected functionality of the DBMS and do not specify the method of implementation to achieve this functionality. They encompass requirements on the data model, query and data manipulation languages, the system architecure, interfaces to the system, change management, and transaction management.