仿真概念模型的开发过程研究

仿真概念模型是为了满足仿真应用目标而对真实世界进行的首次抽象,它为领域专家、开发人员和VV&A人员提供了关于真实世界的一致规范的描述,它把具体的仿真需求转化成为详细的设计框架.仿真概念模型包括仿真背景,任务空间和仿真空间三个组件,针对它们各自的特点,提出了工程上可用的仿真概念模型的开发过程.     

Enhancing Collaborative Learning in a Blended Learning Environment: Applying a Process Planning Model

The research reported here was undertaken in a blended learning environment where contact tuition is “blended” with computer-supported (online) learning. The context is a developing country (South Africa). After completion of two full cycles of an action inquiry the planning for the third cycle was undertaken according to an existing process planning model which was originally developed for the design and planning of team-based action learning and action research (ALAR) projects. The illustration of the application of the model focuses on the aspect of student collaboration in a blended learning environment and shows how the original process planning model was adapted and applied during the re-planning phase of the project. The final deliverable is a set of action plans for future collaborative learning that could strengthen student-centred learning experiences in a context which still bears the scars of an unfortunate segregated past.     

Learning by Action Research: A Policy for School Development

In this article I define a project organization as action research. Thus defined, the approach presents a method for experiential learning among educators who develop as learners in an educational setting. Second, the approach describes a method for focusing on research related to change in classroom didactics brought about by the mediating instruments educators discover and use so as to overcome their own learning anxiety. Third, action research and academic investigation are described as a method for integrating theory with practice. Finally, action research is outlined as an effort for social justice—the way knowledge usually develops by social construction.     

维修保障流程的通用仿真模型研究

在分析维修保障流程建模与仿真重要性的基础上，分析了PERT模型和Petri网模型在流程仿真中的应用特点，结合PERT和Petri网技术，提出了基于多层次PERT-Petri网的通用仿真模型，并给出了该模型的建模方法和仿真算法，文章最后给出了一个例子。     

一种面向并行工程的产品开发过程关系模型

为了处理产品开发过程由串行到并行的转变而引起的问题，全面地表示且维持产品开发过程中各开发小组及小组成员间应满足的关系，保证开发过程满足顾客需求，本文分析了并行产品开发过程的特点，提出了一种适合这些特点的产品开发过程关系的层次表示模型，介绍了此关系模型的实现方法和它与并行工程环境中其它系统的集成关系，给出了此关系模型在产品开发过程中的应用     

Systemic Development of Leadership: Action Research in an Indian Manufacturing Organization

This insider action research study differentiates between developing leaders and leadership, evolves a systemic leadership model, and intervenes on the human, social and processes dimensions for developing leadership. This is a real-time study and responds to the organizational reality of fast pace of change and its systemic nature. Consequently, the research too is fast to guide actions and influence positive changes in the organization. As the action research addresses a systemic reality, research and contributions are in multiple aspects, with new techniques having huge implications for theory building as well as improving practice. The study provides a structural solution to perceived lack of commitment in senior colleagues—a syndrome I acronym as HILE (High Intentions and Lukewarm Execution)–by re-designing organizational processes and making time available for its effective utilization in developing leadership. A new technique of triggering major changes in organizations termed “concept sublimation” distils concept from the statements of major stakeholder and sublimates it from lower to higher unit of analysis and to higher levels of positivity. Statistical simplification of a competency framework by applying concepts from Euclidian geometry and making it effective is yet a unique contribution of this action research study. The study adapts the competing values framework in developing a method of assessing cultural congruence of a candidate with the culture of the organization. The uniqueness of the study lies in bridging the gap in the literature by actually and systemically developing leadership in an organization and providing pragmatic insights on developing leadership while also creating knowledge for theory building.     

基于复合策略的社会学习模型

为了研究在复杂社会网络环境中的社会学习,考虑到社会个体的异质性和复杂性,提出一种基于复合策略进行信念更新的社会学习模型。模型中的个体在每一时刻,以一定概率任意选择基于贝叶斯法则的更新策略或基于邻居信念的更新策略中的一种策略进行信念更新。仿真结果表明,在满足策略选择概率大于0等条件下,社会个体最终都能够达到渐近学习,并且学习速度与策略选择概率是相关的,策略选择概率取值越大,学习速度越快。     

青霉素发酵过程的仿真培训模型

对于反应过程复杂,反应周期长的生化反应建立起切实可行的仿真培训系统,对制药业和高等工程教育都有实用意义。青霉素发酵是一种典型的具有代表性的生化反应过程,本文全面考虑了生化发酵过程的机理特点及各种过程参数的变化,建立了青霉素过程动态数学模型,仿真结果表明该模型很好地反映了实际过程的动态趋势。     

基于装配任务的虚拟装配工艺模型研究

面向过程的虚拟装配工艺规划系统对装配工艺模型提出了新的要求。在对虚拟装配工艺规划过程中的工艺数据进行分析的基础上，提出了产品层次装配任务链模型，该模型能有效表达虚拟装配工艺规划过程中的工艺数据，同时给出了由产品层次装配任务链模型向虚拟装配工艺模型转化方法，建立了虚拟装配工艺模型。开发了虚拟装配工艺规划系统VAPP，对研究结果进行了验证。     

A kind of Generalized Learning Model

1　IntroductionSymboliclearning,connectivelearning,fuzzylearningandevolutionarylearningarethepresentfundamentalmethodsformachinelearning[1～3].Eachofthemhascharacteristicsandadvantages,andcancarryoutmachinelearningtasksincertainregioneffectively.Howe...     

基于基本对象模型的HLA仿真系统VV&A过程探究

基本对象模型(BOM)是SISO提出的标准化仿真模型组件的描述规范,基于BOM的HLA仿真系统可以从仿真模型组件层面上提高系统的重用性和互操作性.VV&A过程的探究有助于VV&A工作的开展和规范.介绍了BOM在HLA应用中的体系结构,并简要提出基于BOM的HLA仿真系统的开发步骤,最后对该类仿真系统的VV&A过程展开研究,重点研究了用户模型、仿真模型组件及联邦成员三者的V&V.实践表明:提出的VV&A过程切实可行,对VV&A工作起到了很好的指导作用.     

基于知识管理的制造业企业工艺创新过程及模型

在知识管理的视角下,分析了制造业企业工艺创新过程要素,基于识别后的过程要素,构建了基于知识管理的制造业企业工艺创新过程螺旋模型,最后以格力电器为实证分析对象,对其工艺创新过程中的知识管理情况进行分析。研究结果表明:制造业企业工艺创新过程包含2个核心要素,知识特性和知识节点特性;在工艺创新过程中,工艺创新知识在工艺创新的5个阶段和阶段内知识管理的4个过程中螺旋递增和上升,在一定跃迁临界值的制约下进行工艺创新活动;格力电器对工艺创新过程进行了针对性的知识管理,提高了其工艺创新能力,并为保持其制造方面的优势提供了支持。     

Designing a Management System for a Rural Community Development Organization Using a Systemic Action Research Process

This paper describes the first phase, 'finding out', of a systemic participatory action research intervention in the management systems of a rural community development organization in the KwaZulu-Natal province of South Africa. The aims of the intervention were to (a) improve the management system of this organization, and (b) evaluate the usefulness of particular systems methodologies for the improvement of management systems of organizations involved in community development in under-resourced rural contexts. The second phase, "implementation," needs to be completed and thoroughly evaluated before any final conclusions can be drawn about the suitability of the chosen systems framework for Third World type rural contexts. However, the second phase is, at the time of writing, underway and all indications are that an interpretive ('Soft') Systems Methodology, combined with insights from a more functionalist ('hard') approach (with methods chosen through a Critical Systems Thinking framework) holds much promise for participatory systemic interventions in these contexts.     

Designing a Capability-Focused Strategic Management Model for a Turkish Public Hospital: Learning from Failure

This study aims to depict a failed strategic change initiative in a Turkish public hospital by means of an action research and it strives to explain critical factors underpinning the failure, thereby proposing how such factors should be tackled with for similar initiatives elsewhere. The study calls attention to the recent challenges ongoing in the environment of hospitals, which urge them to take on a more strategic focus. In this vein, we discredit accreditation based systems, which emphasize monitoring resources and propose a capability-focused strategic management model for hospitals. A hybrid action research protocol, which combines both traditional and participatory action research methodologies in its design, is employed to formulate and implement the model in a public hospital. The phases of the project and obstacles faced during these phases are discussed. The findings suggest that although the model offers significant potential for competitive success and better resource efficiency, path-dependent characteristics of the public sector governance in Turkey have impeded the adoption of the model in our case. Both macro-systemic characteristics related mainly to the Turkish national culture and management of public institutions and situation-specific characteristics, such as top management’s decision making orientation, professional norms and patronage relationships have blocked the way for the aspired transformation despite positive attitudes of and support from higher order public authorities and internal professional groups.     

基于简化活性污泥数学模型的污水处理仿真研究

现有的活性污泥数学模型结构复杂、参数众多，直接用于污水处理的系统仿真有一定的困难。针对这一问题，对活性污泥1号模型ASMI面向应用进行合理的简化，得到适合描述活性污泥推流式工艺碳去除过程的模型ASP-CR．该模型的组分、反应过程和参数的数量都大大减少，并对溶解氧组分进行了特殊处理一用现场的测量值代替预测值。基于试模型建立了污水处理仿真系统，解决了数据转换和参数校正的问题．通过对海城污水处理厂处理过程的实时模拟，验证了系统的正确性和实用性。     

虚拟智能体的情绪建模研究

如何模拟人类情绪的产生、变化过程是一个非常复杂的问题.基于个性心理学和情绪理论,研究了虚拟智能体情绪决策的过程,提出采用模糊有限状态机模型来建立具有个性化的虚拟智能体情绪决策模型,将个性和刺激因素等进行模糊处理后,给出了具体的推理过程.通过一个仿真实例,验证了模糊有限状态机模型能够有效的实现虚拟智能体情绪变换的平滑控制.     

基于设计者智能主体模型的产品开发过程仿真

产品开发过程仿真是对产品开发过程进行预测、管理、评价和改进的有效手段.为了对产品开发过程中的人与组织因素进行仿真,提出了一种设计者驱动的产品开发过程仿真原理.重点对设计者智能主体模型进行了研究,采用INTERRAP混合结构建立了设计者智能主体结构模型,用分层有色随机Petri网描述了设计者的个体行为过程与协作行为过程.最后进行了系列仿真实验,初步证明了模型的有效性.基于设计者智能主体模型的过程仿真可在过程预测与评价、人因及组织分析、设计过程改进等方面发挥重要作用.     

复杂产品开发过程仿真与预测研究

为了更有效的对复杂产品开发过程进行预测分析,提出一种两层设计结构矩阵模型作为仿真的结构关系模型.建立了服从三角分布的时间与成本模型,采用拉丁超立方抽样法对该模型进行抽样并生成样本点.采用任务返工概率、返工影响与学习效应曲线来描述开发过程的迭代特征,对任务返工概率的变化调整、返工需求判断策略、多任务返工执行约束等问题给出了相应的仿真模拟方法.在此基础上提出了改进的产品开发过程仿真算法,并设计开发了基于Matlab的复杂产品开发过程仿真平台.最后,通过一个实例证明了该仿真平台的有效性和实用性.     

Regional Leadership: A Systemic View

New innovation and industrial policies contribute to the development of an informal economy and have increased collaborative processes across sectors and social spheres within regions. This paper addresses the role of regional leadership in the informal economy. By themselves, network processes increase complexity and create a series of uncertainties that differ from processes that are steered through the hierarchical procedures of public bureaucracy or regulated through the judicial and competitive mechanisms of the market. These collaborative and steering challenges must be addressed by regions that seek to succeed with their development efforts. Empirical findings show us that relatively similar regions do not respond in a uniform fashion to the challenges raised by network based development processes. This paper argues that regional leadership anchored in representative democracy can reduce some of the uncertainties and complexities of network based regional innovation policies, increase sustainability and long term effectiveness, and strengthen local democracy.     

保险公司破产模型的进一步研究

引入一个新的概念——标准索赔额，建立一种新的破产模型并给出它的破产概率，从而使得破产概率更具有现实意义，并可作为衡量保险公司金融风险的一个重要指标。