大型钢铁企业业务流程再造的思考

通过对某大型钢铁企业实施业务流程再造必要性的分析，对该企业实施业务流程再造进行了思考，提出了实施业务流程再造的思路和步骤，并给出该企业实施业务流程再造的预期效果，以期为我国企业有效开展业务流程再造，提高企业管理水平提供借鉴和实施办法。     

信息技术在业务流程再造中的应用

首先分析了信息技术与业务流程再造的密切关系,指出信息技术是业务流程再造的必要条件,业务流程再造要求信息技术与企业流程创造性地结合,并深化两者之间极为密切的关系,进而在分析企业结构模型的基础上,通过共享数据库,组成流程工作小组,达到企业流程再造的目的。     

企业流程再造中IT技术作用的案例分析

通过Ａ集团的ＩＴ技术应用的案例,分析了ＩＴ技术在企业流程再造中的作用,对Ａ集团的决策、财务、设计、制造、检测、仓库管理、售后服务、办公自动化等业务流程再造中ＩＴ技术的作用进行了详细的研究。认为ＩＴ技术在流程再造中确实起到了使能器和实现器的作用。     

基于全生命周期的企业流程再造(BPR)模型框架

本文依据流程再造理论与实践相结合的原则，建立了一个比较可靠的流程再造模型，提出了企业流程再造应该是包括功能、组织和信息系统的全周期流程再造的再造新观点，并给出了流程再造的策略、建模方法及在思想、流程及组织三方面的再造规则。     

烟草ERP系统业务流程再造的探索

"业务流程再造"(BPR)是ERP系统有效实施的保障,是指基于信息技术的、为更好地满足顾客需要,而进行地系统化地组织企业工作流程的相关活动,为企业经营管理提出全新的思路。流程设计是ERP系统实施的重要的工作。梳理现有的业务流程,推进业务流程再造,并对流程进行简化、优化和规范化,做到业务流程系统化和集成化.确保这些业务流程在ERP系统中予以实现,达到信息集成、准确的目的。     

基于六西格玛项目选择原理的BPR核心流程确定方法

在分析企业核心竞争力与业务流程再造关系的基础上,提出了基于核心竞争力的业务流程再造模式.在这个模式中运用六西格玛项目选择原理,建立了核心竞争力的分散要素与业务流程环节之间的相关矩阵,对影响核心竞争力的业务流程环节进行综合评价,并进行优先排序,然后企业根据实际条件选择出要再造的核心流程.以实际企业为案例验证了此方法.     

基于流程增值分析模型的啤酒生产BPR

流程增值分析模型是在波特的企业价值链模型的指导下,将企业业务流程的每一项作业任务分为增值和非增值进行价值增值分析,进而建立价值分析模型的,基于此再根据流程再造理论对企业进行重新诊断、再设计、再造并持续改进等.以泰山啤酒公司为例,分析其生产流程的现状,并建立包装生产的全流程的流程增值分析模型,对生产流程各种作业进行重新诊断和再设计,配合组织结构重组,将其运用于企业的流程改造.经业务流程再造的啤酒包装生产成本下降40%,企业大大增强了竞争力,利税位列全国啤酒行业前茅.     

支持BPR的解释结构建模(ISM)探讨

运用业务流程图、IDEFO图、PERT模型法识别和改造流程，不能深刻揭示业务流程的内部结构特征和规律；复杂业务流程有向图易成为一个相互交叉、混乱的网络，不利于分析流程的特征。为弥补其不足，本文利用图论中的关联矩阵对业务流程进行结构化的建模，通过测试和运算提供业务流程重组的优化(去掉冗余环节)。     

货运代理企业基于信息化的业务流程再造

根据企业发展过程中信息化建设与业务流程再造的互动制衡关系,提出货运代理企业基于信息化的业务流程再造的指导原则和技术路线.以货运代理企业的个案研究分析为例,构造了个案企业基于信息化的全程货运代理业务流程再造的具体方案,并通过对业务流程再造后与再造前的比较,得出其再造方案在业务受理模式、运输方案制定、作业信息流转与处理等多方面拥有显著优势的结论.     

网络环境下企业流程再造的应用研究

随着经营环境的变化,传统企业的组织和管理面临许多挑战.通过分析认为,在网络环境下,企业的业务流程、组织结构和管理机制必将发生革命性的变化,业务流程再造成为企业组织变革和管理创新的前提;提出了实施业务流程再造的基本思路、步骤和技术;探讨了业务流程再造实施过程中应该注意的问题;指出企业只有不断优化业务流程,才能最终推动企业组织变革和管理创新以适应环境的变化.     

Modeling the viscoelastic function of asphalt concrete using a spectrum method

A continuous spectrum method is proposed and applied for modeling the time-domain viscoelastic function of asphalt concrete materials. This technique, employing a Wiechert model for the relaxation function and a Kelvin model for the compliance function, is found to substantially enhance accuracy and consistency compared to existing methods. Furthermore, this paper shows how to determine a time-domain Prony series representation, which can be used efficiently for numerical analysis, such as finite element analysis, from the complex modulus in the frequency domain, based on the continuous spectrum method.     

A Floorprint-Based Defect Tolerance for Nano-Scale Application-Specific IC

A floorprint-based yield modeling, assurance and optimization method for the defect tolerant NASIC system under broken nanowire (NW) defects has been proposed in a short version of this paper, and the proposed models and methods are further validated and demonstrated through extensive parametric simulations in this paper. A yield model for each defect tolerant NASIC technique is developed based on the nature of the defects of concern in a floorprint-based analysis, thereby establishing an adequate foundation to evaluate and optimize the manufacturing process and defect tolerance by providing a capability to take into account the effect of each individual defect tolerance technique or synergetic effect of various combinations of the techniques on the overall expected yield of the product. According to the simulation results given in this paper, the defect tolerant NASIC system with 15 row and column NWs, respectively, each with length = 0.000034 on horizontal and vertical core nanoarray in a nanotile can achieve a yield higher than 99.8%. Ultimately, intelligent exploitation of the proposed yield modeling and simulation methods will make possible to realize a reliable NASIC-based computing system.     

Full SPH fluid–shell interaction for leakage simulation in explicit dynamics

This paper is devoted to the modeling of fluid leakage through a shell in case of impact loading. The modeling of the fluid and the shell is based on SPH formulation. The proposed model is devoted to the prediction of failure of a shell filled with fluid. This paper is devoted to the numerical modeling of fluid–structure interaction. The pinballs technique is used for contact analysis. Numerical predictions are compared with analytical as well as with an original experiment. Copyright © 2009 John Wiley & Sons, Ltd.     

Bayesian network approach to change propagation analysis

The prediction of change propagation is one of the important issues in engineering change management. The aim of this article is to explore the capability of Bayesian network (BN), which is an emerging tool for a wide range of risk management, in modeling and analysis of change propagation. To this end, we compare the BN with change prediction method (CPM), which is the most established probabilistic methods for predicting change propagation. This paper shows that a CPM-based model can be converted into an equivalent BN, and the probabilistic inference technique on the latter results in the same change prediction result obtained from the former. Then, this paper shows that several improvements can be obtained at various levels using the BN. At the modeling level, complex relationship between components such as combined effect of simultaneous changes or multistate relationship can be naturally represented with the BN. At the analysis level, various change propagation scenarios can be analyzed using probabilistic inference on the BN. Finally, BN provides a robust framework for learning change propagation probabilities from empirical data. The case study is conducted to show the feasibility of the model.     

An analytical model for guided wave inspection optimization for prismatic structures of any cross section

This paper presents an analytical modeling technique for the simulation of long-range ultrasonic guided waves in structures. The model may be used to predict the displacement field in a prismatic structure arising from any excitation arrangement and may therefore be used as a tool to design new inspection systems. It is computationally efficient and relatively simple to implement, yet gives accuracy similar to finite element analysis and semi-analytical finite element analysis methods. The model has many potential applications; one example is the optimization of part-circumferential arrays where access to the full circumference of the pipe is restricted. The model has been successfully validated by comparison with finite element solutions. Experimental validation has also been carried out using an array of piezoelectric transducer elements to measure the displacement field arising from a single transducer element in an 88.9-mm-diameter pipe. Good agreement has been obtained between the two models and the experimental data.     

面向CIMS的集成多方位建模与仿真框架

首先分析了几种常用建模方法，包括ＩＤＥＦ０、ＩＤＥＦ１、动态建模方法及ＯＭＴ方法。然后提出了一个集成多方位建模与仿真框架，它将功能、信息、动态视图及仿真核心集成在一起，实现了仿真模型的自动生成，它使得在系统功能设计早期就能预见，评价未来系统的有关动态品质。     

组织建模及其分析方法研究

针对阶梯型ＣＩＭＳ体系结构,对组织视图建模的目的进行了探讨,企业了企业组织对企业经营过程的影响,提出了一种从组织结构和过程组织两个方面建立企业组织模型的方案,给出了组织框图的表述方法,并探讨了组织框架存在的现实意义,进而,针对经营过程,给出了组织单元到过程组织单元的转化方法,给出过程组织的分析依据,并研究了组织结构和过程组织之间的相互关系。     

系杆拱桥拱脚连接结构受力性能分析的多尺度有限元建模方法

拱脚连接结构是系杆拱桥的关键局部结构,构造复杂且局部边界条件不明确,该文引入多尺度有限元建模方法研究其受力性能与传力特征,针对以往研究中采用传统局部精细有限元方法存在的不足,引入弹性边界的概念,将系杆拱桥整桥通过合理的连接方式统一到拱脚连接结构精细模型中以替代局部精细模型中的刚性边界条件假定,并通过全桥精细有限元进行验证。以大连某钢管混凝土系杆拱桥为工程背景,基于提出的系杆拱桥拱脚连接结构多尺度有限元建模方法,建立了多尺度模型。同时,根据传统局部精细及全桥精细有限元建模方法,分别建立了局部精细与全桥精细模型作为对比、验证模型。详细的对比研究表明,局部精细模型分析结果受失真区影响较显著,且失真区范围不能通过本模型定量确定,导致传统建模方法科学性降低、计算结果可信度下降,或通过精细有限元试算、全桥精细有限元检验确定失真区范围,带来繁重的精细有限元建模、计算、数据处理工作。应用弹性边界条件,该文提出的拱脚连接结构多尺度有限元建模方法可以较好地模拟局部结构的复杂边界条件,较精确地预测拱脚连接结构的受力行为,且不受失真区影响,计算结果与全桥精细有限元吻合良好。     

面向有限元分析的特征建模技术

设计与分析的紧密集成是现代化产品设计模式的发展趋势。在进行特征造型系统与有限元分析系统的集成过程中,研究了面向有限元分析的特征建模技术。首先描述了现有的非流形几何造型技术,指出了非流形几何造型技术是实现造型与分析集成的首要条件,并提出了基于中面的冲压零件几何造型方法,其次论述了非几何特征的建模原理和实现方法,着重突出了虚几何在非几何特征建模中的人用和表示方式,最后讨论了支持模型转换的双向相关机制。