基于Windows环境的动力堆核材料数据库计算机管理系统

报道了在Ｗｉｎｄｏｗｓ环境下建立的动力堆核材料数据库计算机管理系统。介绍了系统组成、特点及主要功能，主要描述了物理分析、软件数据流、用户处理基本流程等的系统设计方法。较之以往的工作，本系统增加了关键测量点及组件方位图布局的交互设置，增强了在多种动力堆运行参数情形下的适用能力；增加了数据库编辑、文本编辑、代码查看和设置功能；能自动衡算产生有关报表和管理文件，支持多种打印设备，有报表打印预览显示；具有数据加密、解密及数据备份恢复功能。     

计算机模拟在污水处理厂改建设计中的应用

根据国际水质协会的活性污泥1号模型,结合Takacs的二沉池模型,应用Delphi编译软件,在Windows平台上自行开发了污水处理模拟系统;通过对上海市某采用A/O工艺的污水处理厂的模拟,确定了模型的参数并对模型进行了校正。根据模拟结果对污水处理工艺提出改建的设计方案:没有内回流,A/O两段等体积的运行方式。     

Backprojection by Multiorientation Simultaneous Computation Scheme for CT Image Reconstruction

1IntroductionIncommercialComputerizedTomographic(CT)imagingsystems,thefilteredorconvolvedbackprojectionalgorithm['J--['tiscurrentlyusedforimagereconstruction.Itingeniouslyseparatesthereconstructionprocedureintotwosteps:theprojectiondataarelinearlyconvolve…     

Multiphase-flow properties of fractured porous media

Water–air imbibition and oil–water drainage displacements were conducted using a laboratory flow apparatus in fractured sandstone systems. During the experiments, porosity and saturation were measured along the core using a Computerized Tomography (CT) scanner. 3-D saturation images were reconstructed to observe matrix–fracture interactions. Differences in fluid saturations and relative permeabilities caused by changes of fracture width have also been analyzed. In the case of water–air imbibition, narrower fracture apertures showed more stable fronts and delayed water breakthrough compared to the wide fracture systems. However, the final water saturation was higher in wide fracture systems, thus showing that capillary pressure in the narrow fracture has more effect on fluid distribution in the matrix. During oil–water drainage, oil saturations were higher in the blocks near the thin fracture, again showing the effect of fracture capillary pressure. Oil fingering was observed in the wide fracture. Fine-grid simulations of the experiments using a commercial reservoir simulator were performed. Relative permeability and capillary pressure curves were obtained by history matching the experiments. The results showed that the assumption of fracture relative permeability equal to phase saturation is incorrect. It was found that both capillary and viscous forces affect the process. The matrix capillary pressure obtained by matching an experiment showed lower values than those reported in the literature.     

Application of accounting data in evaluating computer system performance

A method of determining the utiliaztion of the processor, the channel and the disk device using the accounting data is described. Controlled experiments are performed with an IBM 370/155 in a dedicated environment using a software monitor, Configuration Utilization Evaluator (CUE). The accounting data collected by Systems Management Facility (SMF) during these experiments are used to calculate the utilization of the processor, the channel and the disk device. The calculated values compare favourably with those measured by the software monitor.     

基于IAS2.1的太平湾发电厂计算机监控系统开发

本文简要地介绍了基于Industrial Application Server 2.1（IAS2.1）系统完成太平湾发电厂计算机监控系统改造的情况。重点在以下几个方面：太平湾发电厂的环境条件分析;目前主流计算机监控系统的应用现状和技术状态分析;对应用于太平湾发电厂监控项目的工业自动化平台软件的技术需求的分析;结合IAS2.1的主要技术特点论证了该平台软件的可行性;提供了将IAS 2.1应用于水电厂综合监控的典型实例,从系统结构、主机配置、网络设计、IAS 2.1角色分配、主备式数据引擎设计等主要方面作了突出说明,有助于了解基于IAS 2.1的水电厂计算机监控系统的技术特色;对实例的实际效果和应用情况进行了总结和提炼。     

帕玛拉特财务舞弊案对会计信息治理的启示

随着经济趋于全球化,会计作为一种经济工具,其重要作用也越来越明显,而审计作为监管机制对会计造假、审计造假有着不可推卸的责任。针对近期国外发生在欧洲大陆“次成熟”资本市场的帕玛拉特事件进行深刻的反思。对帕玛拉特事件从其作弊的五个方面说起,继而谈到它为我们分析欧洲大陆市场的监管机制、公司治理和独立审计开启了一个“窗口”。     

浅议电算化会计系统的内部控制

企业电算化会计系统运用后，改变了会计核算的环境。企业应建立电算化会计系统的内部控制制度，确保企业财产物资的安全完整。保证企业经济活动健康有序地发展。     

会计制度与税法原则性差异分析

现行<企业会计制度>与税法间存在差异是有目共睹的.税法着眼于实现公平合理的税负和保证国家税款的及时征收,而会计的目标是向会计利益相关者提供有利于决策的财务信息.尽管两者在使用的一些概念原则和方法上有着一致性,但由于其应用目标不同,必然存在着分歧与差异.     

会计信息呼唤诚信

经济越发展，会计信息越重要，但会计信息失真现象日益严重，给使用者提供了虚假情况，给决策者制定相关的决策带来了不利影响，严重影响着国民经济的正常运行，会计信息呼唤诚信。