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Hierarchical Architecture for Enterprise Information System under Dynamic Environment

厦门大学学报（自然科学版） 2002年第S1期41卷 224-225页

作者： TIAN Chun-hua, chai yue-ting, LIU Yi (Department of Automation, Tsinghua University, Beijing 100084, China)

In a dynamic environment, it is vital for enterpris e to have flexible information system architecture to integrate ERP, Supply chain Management (SCM) and E-Commerce (EC). The traditional systems are established o n the ERP-centered flat architecture. This architecture has some disadvantages in supporting the dynamics of enterprises. Firstly, ERP is already a very expens ive and complex system; the extension based on it can only increase the complexi ty and make the implementation more expensive and risky. Secondly, under the arc hitecture, the flexibility is reduced sharply although the execution efficiency is maintained. In a rapid changing environment, flexibility is also an equally i mportant factor besides execution efficiency. Thirdly, it cannot support the dyn amic collaboration efficiently. The prevailing of the flat architecture is not d ue to its advantage but to the big software providers. From the system viewpoint , a hierarchical architecture is proposed. Difference from the current architect ure, in the hierarchical paradigm, ERP is put in the bottom level rather centere d. SCM is the center system, which adopts a multi-agent structure. EC is regard ed as its foreground interface, while ERP and other information system of the pa rtner or internal units are the background executors. EC is the extension of mar ket agent and purchase agent. It fulfills the function of trade on Internet by s ending orders to be executed to SCM and receiving the progress information of th e orders from SCM. After receiving orders from EC, the agent in charge of schedu le in SCM makes preliminary plan in form of instructions (which may be infeasibl e) based on the information of source. Trough the coordination of multi agent, the plan is adjusted to be feasible. Compared with current ERP-centered flat ar chitecture, the hierarchical structure pays more attention to dynamic collaborat ion rather the optimization within the enterprise. At last, two engineering case s, Beijing

关键词： ERP Supply chain Management E-Commerce Multi -Agent system information system architecture

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Flexible Workflow Management in Agile Supply chain System

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厦门大学学报（自然科学版） 2002年第S1期41卷 238-239页

作者： LAI Guo-ming, chai yue-ting, LIU Yi (Department of Automation, Tsinghua University, Beijing 100084, China)

With the vehement development of global competition , Agile Supply chain (ASC) becomes an effective approach that supports dynamic ent erprise alliance and realizes agile manufacturing, as for the enterprises to cap ture market opportunities rapidly and strengthen their anti-risk ability. As Ag ile Supply chain System (ASCS) is dynamic and distributed, the realization of it ’s processes needs to be much flexible. Often in Agile Supply chain System (ASCS ), there are many dynamic tasks, many changes of the processes, and cooperative workflows, which need the workflows able to be adjusted agilely and smoothly, no t much affecting others. This paper will propose a flexible workflow management for achieving the agility and compatibility. At the first of the paper, we will discuss the situation in which Agile Supply C hain System is applied, and then we will elaborate the characteristics of Agile Supply chain System. So with that, the shortcomings of the process managements t hat are, at present, used in Supply chain Systems will be displayed clearly. The n, the proposal will be given in the paper, to resolve the problems in the prese nt process management in ASCS. We will see supply chain systems implemented mult i-agent-based technology to adapt to the dynamic environment, however in many systems, coordination of the workflows is executed by the explicit messages comm unicated between the agents. This will lead to a tightly coupled system. To over come it, the paper suggests the workflow management in agent-based ASCS using t he Events-Triggering mechanism, instead of the explicit messages. We create Eve nts-Triggering contents and rules, having push-pull mechanism, event-state se t and triggering-conditions, and store them in the distributed database subject ed to the corresponding agents. Adjusting the Events-Triggering data will be us ed to adapt to the dynamic tasks and the changes of processes. In sum, we will p resent the methods of process modeling, the system s

关键词： Agile Supply chain ASCS flexible workflow manag ement Events-Triggering exception-handling

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The Planning and Scheduling of Business Process in Agile Supply chain System

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厦门大学学报（自然科学版） 2002年第S1期41卷 285-286页

作者： LAI Guo-ming, chai yue-ting, LIU Yi (Department of Automation, Tsinghua University, Beijing 100084, China)

The rapidly developing global competition is leadin g to the worldwide enterprise alliance, with which the geographical dispersion of production, assembly and distribution operations comes into being. Supply chain system is such a kind of enterprise alliance, managing the material and informat ion flows both in and between enterprises, such as vendors, manufacturing and assembly plants and distribution centers. In the present research work, we can see that supply chain system can quickly respond to customer needs and adapt to the dynamic change of the market so as to improve the competence of enterprises in the chain. Thus, in supply chain system, it’s most important to enhance the speed with which the products are produced and distributed to the customers who order them and reduce the operating costs at the same time. However, because of the special characteristics, such as dynamic and distributed , etc., often in Agile Supply chain System (ASCS), there are many dynamic tasks, and many urgent changes of the processes, which make the planning work and mana gement become very difficult and complex. Thus, in Agile Supply chain System, we first need an efficient planning work, which can program the processes properly to get a primary scheme. And then the local scheduling work based on the primar y scheme will play a important role to deal with the dynamic and distributed pro blems in the business process in ASCS. So, this paper will be organized as below . At the first of this paper, we will discuss the situation in which Agile Suppl y chain System is applied, and then we will elaborate the characteristics of Agi le Supply chain System. With that, the shortcomings of the process managements t hat are, at present, used in Supply chain Systems will be displayed clearly. Sec ond, we will introduce the planning methods in our research work. And then, the local scheduling will be discussed in detail, based on the primarily planned wor kflow. To realize the goal, first we bu

关键词： ASCS urgent order planning local scheduling

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Reusable Component Technology in the Development of Agile Supply chain Management System

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厦门大学学报（自然科学版） 2002年第S1期41卷 264-265页

作者： LAI Guo-ming, chai yue-ting, HE Kang-kang, LIU Yi (Department of Automation, Tsinghua University, Beijing 100084, China)

Agile Supply chain Management (ASCM) is one of the ke y techniques, which support dynamic enterprise alliance and realize agile manufa cturing. But the optimal run of ASCS depends on a good-constructed Agile Supply chain Management System (ASCMS), so that the materials flow, information flow a nd funding flow in the supply chain are used with high efficiency. The requireme nts of ASCMS are constantly changeable, which requires that ASCMS has dynamical reuse, integration and open interface. Reusable components theory is one of the most important directions of software engineering. It’s a feasible approach to solve software crisis and to increase software productivity and quality. ASCMS d eveloped with reusable components can easily be re-constructed, and has good op en interfaces. It will also sharply shorten the development life circle of syste m, and avoid unnecessary errors that result from the process of re-developing t hose components. In order to develop ASCMS based on reusable components quickly, the first thing we need to do is to construct the framework for ASCMS called system architecture . The framework referred in this context is not only a reference system of ASCMS , but also the operation system (including run-time library and communication p rotocols), which the ASCMS determined. So we can abstract logic units of the sys tem (they are the logic base of the ASCMS components), and the relationships amo ng them. And the operation system and communication protocols provide these comp onents with a running platform. Of course, the most important thing is to constr uct an abundant components depository. Components in the depository should h ave some properties such as: (1) Components should be built upon a specific oper ation system (e.g., windows) and standard communication protocols (e.g., IIOP in CORBA’s specification); (2)Self-containment, that shows it’s unnecessary to include other components when some component is reused since that component cont ains

关键词： supply chain ASCMS reusable component CORBA

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敏捷供需链中供需协作模式的研究

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系统工程理论与实践 2000年第3期20卷 28-32页

作者：柴跃廷杨家本清华大学自动化系北京100084

确定实体 (或企业 )之间的供需协作模式是建立敏捷供需链管理系统的基础 .基于实体之间协作的密切程度不同及供需项目特征的差异 ,将订单划分为确定型和预测型两种类型 ,为设计实体之间的供需协作模式奠定了基础 .给出了连续补给型、紧... 详细信息

确定实体 (或企业 )之间的供需协作模式是建立敏捷供需链管理系统的基础 .基于实体之间协作的密切程度不同及供需项目特征的差异 ,将订单划分为确定型和预测型两种类型 ,为设计实体之间的供需协作模式奠定了基础 .给出了连续补给型、紧密协作型、协作型、一般型四种基本供需协作模式的概念。

关键词：敏捷供链订单预测协作模式企业

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经济模型驱动的企业群体仿真建模方法

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计算机集成制造系统 2009年第5期15卷 939-945页

作者：崔琳琳柴跃廷清华大学自动化系北京100084

为解决企业群体仿真建模中对决策场景描述能力不足的问题,提出了一种经济模型驱动的方法框架,并给出了决策网图。通过实例分析,论述了帮助决策者描述经济模型之间耦合关系的方法,并通过在网图上寻找最少最大路径,来辅助仿真流程的分析... 详细信息

为解决企业群体仿真建模中对决策场景描述能力不足的问题,提出了一种经济模型驱动的方法框架,并给出了决策网图。通过实例分析,论述了帮助决策者描述经济模型之间耦合关系的方法,并通过在网图上寻找最少最大路径,来辅助仿真流程的分析与设计。

关键词：决策网图供需链管理离散事件仿真建模决策支持系统

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面向服务架构的实现模型

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计算机集成制造系统 2008年第7期14卷 1306-1312页

作者：兰建忠刘义柴跃廷清华大学自动化系北京100084

归纳了面向服务架构的关键元素,分析了各个元素的实现规范及其关系,并提出了一个以服务为核心、根据标准化的信息技术构建的面向服务架构的实现模型。分析了该模型各个层次的特性及功能,并设计了该模型中企业服务总线层和流程层的实现机... 详细信息

归纳了面向服务架构的关键元素,分析了各个元素的实现规范及其关系,并提出了一个以服务为核心、根据标准化的信息技术构建的面向服务架构的实现模型。分析了该模型各个层次的特性及功能,并设计了该模型中企业服务总线层和流程层的实现机制,介绍了该模型在一个基于面向服务架构的第三方知识服务交易平台中的应用。

关键词：面向服务的架构实现模型网络服务信息技术业务流程执行语言

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Isotropic sintering shrinkage of 3D glass-ceramic nanolattices:backbone preforming and mechanical enhancement

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International Journal of Extreme Manufacturing 2024年第2期6卷 418-426页

作者： Nianyao chai Yunfan yue Xiangyu Chen Zhongle Zeng Sheng Li Xuewen Wang Center of Femtosecond Laser Manufacturing for Advanced Materials and Devices State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan 430070People’s Republic of China National Energy Key Laboratory for New Hydrogen-Ammonia Energy Technologies Foshan Xianhu LaboratoryFoshan 528000People’s Republic of China International School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070People’s Republic of China

There is a perpetual pursuit for free-form glasses and ceramics featuring outstanding mechanical properties as well as chemical and thermal *** is a promising idea to shape inorganic materials in three-dimensional(3D)forms to reduce their weight while maintaining high mechanical properties.A popular strategy for the preparation of 3D inorganic materials is to mold the organic–inorganic hybrid photoresists into 3D micro-and nano-structures and remove the organic components by subsequent ***,due to the discrete arrangement of inorganic components in the organic-inorganic hybrid photoresists,it remains a huge challenge to attain isotropic shrinkage during ***,we demonstrate the isotropic sintering shrinkage by forming the consecutive–Si–O–Si–O–Zr–O–inorganic backbone in photoresists and fabricating 3D glass–ceramic nanolattices with enhanced mechanical *** femtosecond(fs)laser is used in two-photon polymerization(TPP)to fabricate 3D green body *** subsequent sintering at 1000℃,high-quality 3D glass–ceramic microstructures can be obtained with perfectly intact and smooth ***-suit compression experiments and finite-element simulations reveal that octahedral-truss(oct-truss)lattices possess remarkable adeptness in bearing stress concentration and maintain the structural integrity to resist rod bending,indicating that this structure is a candidate for preparing lightweight and high stiffness glass–ceramic nanolattices.3D printing of such glasses and ceramics has significant implications in a number of industrial applications,including metamaterials,microelectromechanical systems,photonic crystals,and damage-tolerant lightweight materials.

关键词： 3D printing isotropic shrinkage femtosecond laser two-photon polymerization structural glass-ceramics

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基于多代理系统的敏捷供需链协调运作及其优化

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系统工程理论与实践 2000年第8期20卷 7-11页

作者：董进柴跃廷杨家本清华大学自动化系北京00084

描述了代理间协商时产生的协调计划和协调规则 ,并运用马尔可夫决策过程理论 MDP进行协调计划的优化 ,解决了代理之间在资源、时间等冲突条件下的协商问题 ,从而使整个敏捷供需链有效地运作 .

关键词：协调优化敏捷供需链多代理系统供应链

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敏捷供需链的管理与决策

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信息与控制 1999年第5期28卷 321-326页

作者：任守榘柴跃廷清华大学自动化系北京100084

信息时代，市场的环境是一种不断改变与不可预测的混沌环境．敏捷供需链管理与决策支持系统（ＡＳＣＭＳ）是将产、供、销过程进行集成，形成一个协同（Ｓｙｎｅｒｇｙ）的整体（Ｈｏｌｉｓｍ），实现企业与突变市场的混沌同步的信息... 详细信息

信息时代，市场的环境是一种不断改变与不可预测的混沌环境．敏捷供需链管理与决策支持系统（ＡＳＣＭＳ）是将产、供、销过程进行集成，形成一个协同（Ｓｙｎｅｒｇｙ）的整体（Ｈｏｌｉｓｍ），实现企业与突变市场的混沌同步的信息系统．及时地发现风险与冲突、科学地处理风险与协调冲突是获取供需链效益的关键．本文在分析ＡＳＣＭＳ的问题空间及功能体系结构的基础上，建立了敏捷供需链的管理与决策模型，提出一种基于规则的敏捷供需链冲突协调模式，分析讨论了用于协调敏捷供需链冲突的规则制定的依据，支持敏捷供需链中的冲突分析与协调．

关键词：敏捷供需链协同论敏捷制造决策支持系统

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