针对ERP沙盘模拟中学生易错和易违规之处,以提升教学质量和实训效果为切人点,从指导教师角度剖析沙盘模拟教学过程并确定实训前、实训中和实训后的教学质量关键点,进而提出教师应采取"由账到实"再"由实到账"的教学策略,同时引领学生把控模拟企业先生存再发展、企业动态博弈决策以及竞合作用等管理理论和思想的模拟应用.结果表明,这些举措能切实解决学生财务知识缺乏问题,使其深刻理解和践行管理的艺术在于驾驭信息等管理本质问题,实现虚拟仿真实验教学的虚与实以及趣味性与严肃性相结合.

能源企业战略转型的演化过程如何?转型过程中人类活动和技术的交互怎样影响转型的结果?如何管理转型的过程?既往研究没有做出充分的解释和回答.本文从行动者网络理论(ANT: Actor-Network Theory)视角,采用纵向案例研究方法,解释能源企业战略转型的实施过程.研究结果表明,企业战略转型的过程即是关键行动者构建行动者联盟的过程,其中关键行动者的转译对转型的成功起着主导作用,技术作为非人类行动者在其中和人类行动者进行交互并促进(或抑制)行动者联盟的形成.本研究试图打开企业战略转型中各类行动者交互作用的黑箱,为传统能源企业实施战略转型提供理论依据.

High performance computing cluster for efficient parallel computing is of very high cost performance and good scalabili -ty.How to test and evaluate the cluster system performance becomes a key problem .In this paper, we made a Linpack test based on high performance computing cluster of 6 nodes .Different matrix scale N , computational nodes , block size NB of matrix , pro-cessor grid topology and network communication were tested .Computing performance to PC and cluster were compared and cluster performance was tested .The results show that:the cluster parallel computing performance is good and is of strong scalability , but the hardware communication ability should be further improved .The cluster is applied into the computing of the actual seismic big data.It is known that the parallel computing performance of the cluster has been improved greatly .

As the largest Asian manufacture of dimethyl carbonate,Shandong Shida Shenghua Chemical Group has set a good example for industries of deepening energy saving and emission reduction,as well as developing circular economy.However,with the development of low carbon economy,some problems rise from this company such as too conservative ideas of energy saving and insufficient professional talents,as well as too little innovative on systems and technologies.Combined with successful experiences of energy saving and emission reduction at home and abroad,some suggests have been proposed as follows:establishing the concept of energy saving based on a low carbon economy targets;actively reserving technical and management personnel of energy saving and emission reduction;implementing the projects of energy saving and emission reduction on all sides of production and operations through upgrading managements and technologies.

A developing method was explored for heat treatment remote expert system based on Internet.The method transplanting the traditional expert system into the Internet was adopted;The heat treatment plan was determined using forward reasoning mechanism based on the rule and example;Microsoft latest active server pages development technique ASP.NET was used to be the development tool of the system,and Access has been used to be the backstage data source,and ADO.NET technique was used to connect database,the multi-user can consult with the system without a break at the same time;The key technique needed to realize the system function was introduced.Changing heat treatment expert system from the single machine to the Internet will raise the share and the convenience of the upgrade and the maintenance of system,which avoids isolated and aging of expert knowledge,and helps to build distributed heat treatment expert system on the Internet.

An Internet-based long-distance CAD system for cold box design was developed. ASP.NET was adopted as the system development tool, Access was used as background data resource, and ADO.Net technique was used to connect the data base. The key techniques for implementing the main functions of the system were introduced. The transition of the core box design system from a single computer to the Internet increased the sharing ability of the system, made upgrading and maintenance of the system more convenient, avoided the system to be isolated and become aged, and achieved the simultaneous and uninterrupted usage of the system by multiple users.

为了适应激烈的市场竞争中我国石油企业转换调整企业组织结构,使企业适应经济体制的转变,成为市场的主体,走出低效率和低效益的“沼泽”;研究国内外企业组织发展趋势,分析现有组织结构的优势和弊端,积极寻求组织结构改革的新举措和具体的实施步骤。

The reachability of Petri-net System is the foundation of the state and action-analysis of system.This paper shows how to realize the reachability by use of energy optimizing model and nuro-network technology,designs nuro-netuork algorithm based on this model.