综合仿真系统联调大纲拟制中的军事设计问题

以综合仿真系统调试为背景,讨论分布交互仿真系统联调大纳拟制的要求,方法以及应用降阶的解析仿真模型支持大纲拟制的有关问题。     

一种巨型综合业务网呼叫阻塞概率的快速算法

为计算综合业务网的呼叫阻塞概率 ,将网络视为资源完全共享队列系统。针对巨型资源完全共享队列的特点 ,得到了在服务员总数与顾客到达率按有限的比率都趋于无穷时 ,队列状态概率分布趋向于正态分布这一结论。在此基础上提出了一种适合于计算大规模队列中呼叫阻塞概率的近似方法。与现有算法相比 ,该算法具有计算简单、误差小、速度快的优点。     

Quality in Action Research: Reflections for Second-Order Inquiry

One of the current debates in action research concerns the quality of these practices. Up to now, many contributions have focused on defining specific criteria based on action research epistemology. This article sustains (1) that prior to dealing with these questions, it is necessary to define for what purpose and for whom we are making the evaluation; (2) that this leads us to make a distinction between different evaluation models; and (3) that the quality strategies and criteria will be different for each model. In particular, the article confronts an academic evaluation model as a form of external control over the quality of action research and an internal, participatory evaluation model as a quality strategy aimed at establishing feedback for the process. Final considerations are given about the implications of both models for academia.     

Editorial Introduction: The Practice of Co-operative Inquiry

Systemic Practice and Action Research -     

Commentary: Reflections on Co-operative Inquiry in This Historic Moment

Systemic Practice and Action Research - My reading of the six accounts of co-operative inquiry in this volume comes during a historic moment for action research in which the tensions of celebration...     

Appreciative Inquiry: A Field Study of Community Development

The meaning of race, ethnicity, social class, and culture has rapidly changed within the last two decades. In addition to the tremendous growth of diverse populations in our neighborhoods, administrative policy changes have pushed community leaders to approach organizational engagement with diversity more comprehensively. Using Appreciative Inquiry method to achieve a high level of participation and to transform inner dialogue between the participants, this study is about doing systemic thinking and practice in a diverse inner-city setting in the United States. The results of this study indicate that Appreciative Inquiry method is an appropriate model for systemic practice in community development.     

Ways of seeing: Topographic and network representations in organization theory

Organizations (and social systems more generally) have traditionally been represented topographically-as if they were landscapes. Such an image is limited. A network representation of organizations, redescribing the latter as locales over which constellations of relations are woven, is more appropriate to cope with transformation and change. Topographic representations, however, are not useless. To the extent that social life is carried out in institutions concerned with efficiency; and insofar as power, control, and accountability are inextricable features of social systems, network representations will be limited, and topographic representations will not vanish. Organizational representations tend to oscillate between conceiving organizations as objects vs. sets of relations. Neither of these images alone is sufficient to capture organizational functioning.     

The Participation Imperative in Co-operative Inquiry: Personal Reflections of an Initiating Researcher

Participation has become an imperative in international development. In particular, participatory approaches to development research are believed to support empowerment through collective development of knowledge and action. Yet there are broad interpretations of participation, ranging from passive participation and information exchange to empowered participation through self-mobilisation. As such, development researchers may claim to use a participatory approach without yielding power and agency to citizens involved in the research. This is a reflexive article about a development researcher’s experience in applying a participatory worldview through co-operative inquiry, a research approach that attempts to engage emancipatory forms of participation. The article begins with a critical analysis of literature regarding participation, the participatory paradigm and participation in the co-operative inquiry. The author then analyses her personal experiences, challenges and strategies as initiating researcher to actualise empowering forms of participation in three co-operative inquiries. The article emphasises that researchers must “let go” of their power, control and personal agenda to support empowering participation.     

Developing Managers as Healing Agents in Organizations: A Co-Operative Inquiry Approach

This action research examines how a health service manager, with a clinical background, sought to develop his clinical skills in a management context. When asked to undertake an evaluation of an addiction counseling service, he found that there was evidence of systemic ill-health expressed through feelings of powerlessness, hurt, and alienation among the staff of the service. The article describes how the manager used action research, and in particular co-operative inquiry, to become an agent of healing in his own place of work. It illustrates how the co-operative inquiry process can be used to help individuals or groups to overcome feelings of alienation and powerlessness in organizations. By dealing with these feelings through a process of co-operative inquiry the conditions necessary to improve systemic health can be created to help develop a service and meet service objectives It explores the neglected subject of how managers can be agents of healing in organizations.     

Systems Thinking and Systems Practice: Working in the Fifth Dimension

This paper describes how a messy organizational problem was tackled using a systems approach which led to a resolution of the problem and to an improvement in the working relationships of the people involved. The example also shows how people who are not familiar with systems thinking, as such, can quickly be helped to develop a shared systemic view of a complex situation using activity modeling. At a deeper level, the paper also shows how the underlying dynamics of the problem situation was altered as a result of using a cooperative, dialogical working method, leading to an improvement in the quality of service provided by that part of the organization. The paper uses Peter Senge's five disciplines of a learning organization, together with various systems concepts, as a framework for describing how the process of change was brought about through the simultaneous management of task and social processes, leading to both individual and organizational learning.     

Establishing a Co-operative Inquiry Group: The Perspective of a “First-Time” Inquirer

Systemic Practice and Action Research - This paper gives a detailed account of the activities I engaged in when establishing a co-operative inquiry (CI) group of 12 young women managers. I feel...     

Community Work Research through Co-Operative Inquiry in Timor-Leste,Australia and Peru: Insights into Process

Co-operative inquiry is an under-explored method in community-based research. Its democratic approach involves a group of “co-researchers” collaboratively inquiring into a mutually-agreed research topic through systematic cycles of reflection and action. This article shares the process, outcomes, and methodological reflections of three co-operative inquiries that were conducted as part of an international study regarding love in community work. Groups of up to 10 community workers in rural villages in Timor-Leste, Australia, and Peru engaged in co-operative inquiry to collaboratively develop new knowledge to inform practice. The article analyses data regarding co-inquirer experiences of the methodology, and identifies the strengths and challenges of the co-operative inquiry method to support the collective generation of new knowledge. The article concludes that co-operative inquiry involves shared power, participation, action, and contextual reflexivity, and is a useful method for community workers to collaboratively develop innovative approaches to community work practice through cycles of reflection and action.     

Application of Quality of Experience in Networked Services: Review,Trend & Perspectives

Over the last decade, there has been an exponential growth of services over the Internet. Services such as online gaming are gaining popularity, whereas, Voice over Internet (VoIP) has been well established. Storage, management and processing of data have moved away from the devices to the cloud. Quality of experience (QoE) defined as the user’s perception of service quality is utilized in different technologies, services and products for improving end user satisfaction and provides quality of service (QoS) according to their demands. In this paper, we describe the utilization of QoE in different technologies, services and products for improving end user satisfaction. Specifically, we present the latest developments in QoE in multimedia services, network management, VoIP, web development, games and cloud computing. Finally, we discuss the current research, solutions and present open issues of future research in QoE.

     

分布仿真的时间推进机制:HLA时间管理服务

ＨＬＡ（ＨｉｇｈＬｅｖｅｌＡｒｃｈｉｔｅｃｔｕｒｅ）应能集成多种类型的仿真应用。为了确保事件发生的顺序或放松对顺序的要求而不影响仿真效果,ＨＬＡ建立了一个通用的时间管理机制,引进了四种消息传递顺序,使用了Ｌｏｏｋａｈｅａｄ来保证时戳顺序传递。本文分析了ＨＬＡ时间管理服务的任务、消息传递顺序、时间概念、Ｌｏｏｋａｈｅａｄ的含义和逻辑时间推进的服务。     

Web Services应用在CORBA环境中的实现原理与方法

针对在CORBA环境下使用Web Services时存在的问题,通过对分布式网络环境下的Web Services与CORBA的链接机制的分析,将Web Services作为建立在CORBA中间件之上的中间件,设计了Web Services与CORBA的双层中间件架构的链接模型,从而解决了广域网络用户与子网络中的CORBA对象的通信和互操作问题,同时提出了Web Services在CORBA中的应用方法,并对其中的XML数据封装等部分的实现和信息交互程序流程等关键问题进行了研究,最后给出在CORBA环境下的多级电力监控网络的Web应用实例。     

新经济背景下企业竞争优势的培育:集成创新的观点

以构筑企业竞争优势为主线 ,从系统科学角度深入分析了企业赢得竞争优势的源泉 ,指出集成创新是新经济时代企业建立高层次竞争优势的源泉 ,并分析了集成创新的基本理论以及企业实现集成创新的途径     

多媒体技术在GIS集成开发中的应用

阐述了多媒体技术与地理信息系统相结合的必要性,探讨了将多媒体技术与GIS集成的应用模式,介绍了基于多媒体技术和可视化开发语言集成二次开发的多媒体地理信息系统应用实例。     

1:1的二级非一体化供应链库存运输联合优化模型

研究了非一体化供应链下单供应商-单零售商的库存运输联合优化问题,考虑了一体化的理想情况以及运输成本分别由供应商、零售商承担3种情况,并建立了数学模型.随机数据实验验证了零售商承担运输成本情形可获得较优的供应链整体利润,其值接近于理想情况下供应链的总体利润,进而采用利润分配策略,以确保供应商和零售商双方均能获得更大利润,从而促进供应链协调.数值算例和参数灵敏度分析验证了运输成本由零售商承担策略的优越性和稳定性.     

土壤肥力综合评价研究进展

土壤肥力是土壤诸多基本特性的综合反映，在评价土壤肥力时不能只着眼于个别的肥力因素，需从整体的观点出发，需要评价土壤肥力的综合指标，这个指标既是定性的又是定量的，即土壤肥力的数值化综合评价。详细介绍土壤肥力综合评价的主要研究内容及进展，同时指出其中存在的问题。参27。