Workflow process modelling and resource allocation based on polychromatic sets theory

In workflow management, studying the relationship between workflow process activities and resource allocation is one of the interesting research topics. Polychromatic sets theory (PST) is a relatively new mathematical theory which is especially suitable for treating such problems. Based on PST, this paper proposes a framework of workflow process modelling and resource allocation. As the theoretical foundation, polychromatic sets (PS), polychromatic graph (PG) and isolation operation (IO) of the PS are introduced. Special net structure (SNS), a special PG with colourless nodes and concolourous edges, is also introduced, and a new workflow process model and its verification algorithm are presented. Furthermore, a workflow resource model based on the entity of PS is developed. Based on IO of PS, the allocation mechanism that considers workflow process and workflow resource is proposed. Finally, a case study is provided to demonstrate the effectiveness of the above-mentioned theory and method.     

基于元分析的多色集合理论在国内的应用研究

运用元分析手段,对多色集合理论在国内的应用进行分析。分析发现,对多色集合理论的应用近年在国内不断增长,主要是通过对该理论的相关技术工具的灵活运用,进行系统信息的形式化处理和各种数学建模,进而推动系统的计算机集成与仿真,促进企业生产率的提升与技术的创新。文章还指出了今后多色集合理论的进一步应用和发展方向。     

基于D-S理论的高校教师综合素质评价实证研究

本文在D-S证据理论和模糊综合评价理论的基础上,利用D-S证据理论合成方法建立评价模型,把静态的评价模型转化为动态的评价模型,引入权重设计的综合评价进行区分,然后对评价集和和评判矩阵进行证据合成,得到的结果更能客观实际的反映高校教师的综合素质。     

基于工程建设总承包模式的并行设计管理研究

近年来,总承包模式在国际上得到了越来越广泛的应用,针对总承包模式下的设计管理,提出运用并行工程原理,将早期设计与后续环节有机结合,充分发挥集成管理的优势,并提出了并行设计的理论框架,从并行工程应用于总承包模式的适用性,应用并行设计的前提和实施并行设计的结构框架体系等几个方面,对该模式进行了初步探索和研究.     

基于UML的用户培训管理系统设计与实现

UML是一种有力的面向对象的可视化建模工具,可用于描述和构造软件的体系结构。文章以建模步骤为线索,围绕用户培训管理系统的设计与实现,给出了系统需求模型和动态行为模型的详细UML描述。本系统采用ASP.NET实现,现已投入运行,效果良好。     

Random Sets: Models and Statistics

This paper surveys aspects of the theory of random closed sets, focussing on issues of practical and current interest. First, some historical remarks on this part of probability theory are made, where the important role of Georges Matheron is emphasized. Then, fundamental characteristics of the distribution of random closed sets are introduced. The very important Boolean model serves as an example for discussing mathematical and statistical problems. A number of further models is then considered, namely excursion sets of random fields, the system of edges of the Poisson Voronoi tessellation and various random systems of non-overlapping spheres. Finally, some ideas of particle statistics are presented, including some models of random compact sets.     

“双主”企业培训教学设计的模式研究

企业的经济环境、社会环境、政治环境、技术环境和生态环境在不断变化。如何使企业适应变化、参与竞争、开拓市场,是企业管理者迫切需要解决的问题。由于企业培训十分注重成本/效益比,这与教学设计的思想不谋而合。教学设计能为企业培训与开发提供科学理论与具体实践,其中“双主”企业培训教学设计模式的应用势必给企业培训过程带来巨大的影响。     

随机过程理论在库存管理中的应用——对连续型和离散型（s，Q）模型的求解

基于随机过程理论对物流活动中的库存管理进行优化：在传统的市场需求固定的基础上对顾客需求是随机的情形进行分析,推导模型并进行求解。现代库存管理追求的是效益最大化（或成本最低化）,以（s,Q）模型为例,分别对需求是连续的和离散的两种情况以成本最低为目标函数进行建模．最后通过算例分析得出库存最优方案.     

A new method for automatic synthesis of tolerances for complex assemblies based on polychromatic sets

In computer-aided tolerance design (CAT), integrated design of dimensional and geometric tolerances is still one of the research hotspots. Polychromatic sets theory (PST) is a new mathematic tool, which is especially suitable for formal hierarchical structure models. Based on PST, in this article, a new hierarchical representation model for tolerance synthesis is presented to realise integrated design of dimensional and geometric tolerances. According to the inference relations between unified and individual colours of PST, the synthesis matrices of variational geometric constraints (VGC) are established in the VGC tier of the model, and the synthesis matrices of tolerance types are established in the tolerance type tier of the model. On this basis, the synthesis processes from the feature tier to the VGC tier and from the VGC tier to the tolerance type tier can be realised. VGCs, which are achieved by the synthesis matrices of VGCs, can be combined together to establish a well-constrained VGC network (VGCN). Tolerance types, which are achieved by the synthesis matrices of tolerance types, can be added to the well-constrained VGCN to construct a well-constrained tolerance network. An application example is given in the article to illustrate the synthesis steps.     

面向利益相关者的工程设计过程分析

对工程设计过程及其作用作了简要分析;阐述了传统工程设计过程中存在的问题;最后结合利益相关者理论提出了面向利益相关者的工程设计过程,并介绍了设计过程中应注意的事项和原则.     

An optimisation method for complex product design

Designing a complex product such as an aircraft usually requires both qualitative and quantitative data and reasoning. To assist the design process, a critical issue is how to represent qualitative data and utilise it in the optimisation. In this study, a new method is proposed for the optimal design of complex products: to make the full use of available data, information and knowledge, qualitative reasoning is integrated into the optimisation process. The transformation and fusion of qualitative and qualitative data are achieved via the fuzzy sets theory and a cloud model. To shorten the design process, parallel computing is implemented to solve the formulated optimisation problems. A parallel adaptive hybrid algorithm (PAHA) has been proposed. The performance of the new algorithm has been verified by a comparison with the results from PAHA and two other existing algorithms. Further, PAHA has been applied to determine the shape parameters of an aircraft model for aerodynamic optimisation purpose.     

浅谈中水回用工艺设计

主要介绍了中水的来源、应用和处理技术,阐述了三种情况下的中水回用工艺流程的设计。     

化工工艺设计中的安全问题及控制

文章通过对化工工艺设计的基本理论包括化工工艺的分类及特点等进行研究,并结合多年的工作实践经验分析了化工工艺设计中常见的安全问题及其控制的途径。     

汽车座椅舒适性开发的初步研究

文章通过深入分析消费者对汽车座椅舒适性要求的诉求模型，系统地阐述了座椅舒适性的定义及基于此定义的舒适性目标的建立，并结合多年项目经验提出了汽车座椅舒适性设计开发的一般原则和要点，以及舒适性分析验证及完善的主要手段，同时围绕整车开发流程概述了座椅舒适性设计开发流程和主要关键节点，最后对座椅舒适性设计开发在汽车上的实际应用效果进行了辨证分析和总结，对其未来的发展趋势进行了展望。     

A service governance mechanism based on process mining for cloud-based applications

ABSTRACT

With the widely use of cloud computing in enterprise information systems, service governance becomes critical for an enterprise to adapt to a changing business environment. In order to provide a dynamic strategy for continuous service governance, in this paper a comprehensive service analysis solution is proposed to address both design time and run-time requirements for cloud applications. First, a process-centric Semantic Scene Model is composed to combines static business requirements with dynamic execution information. Then service analysis is conducted referring both to the business process mining results from event logs and the Semantic Scene Model given by business model designers. Service governance strategies are generated from the service analysis results and are performed to qualitatively classify the Quality of Service (QoS) of the services. Finally the approach is verified with a transportation logistics service application in a cloud platform. The result shows that our method can get continuous service governance through combining business processes with run-time service analysis.     

Forecasting economic time series with unconditional time-varying variance

The classical forecasting theory of stationary time series exploits the second-order structure (variance, autocovariance, and spectral density) of an observed process in order to construct some prediction intervals. However, some economic time series show a time-varying unconditional second-order structure. This article focuses on a simple and meaningful model allowing this nonstationary behaviour. We show that this model satisfactorily explains the nonstationary behaviour of several economic data sets, among which are the U.S. stock returns and exchange rates. The question of how to forecast these processes is addressed and evaluated on the data sets.     

A response surface approach to tolerance design

In spite of Taguchi's robust parameter design (Introduction to quality engineering: designing quality into products and processes, 1986, Asian Productivity Organization, Tokiyo), tolerance design is still important at the design stage of products and processes. Taguchi's proposal and related methods for tolerance design, however, do not efficiently use the information that can be obtained from the parameter design experiment. In this paper, we introduce a new method for tolerance design based on the response surface approach to parameter design. It is a flexible method because non-normal distributions of the noise factors and the quality characteristic are allowed. Moreover, it is unnecessary to perform a new physical experiment. Essentially, tolerances of noise factors are maximized, subject to constraints to ensure that the mean value of the quality characteristic remains on target and the fraction nonconforming is below a pre-specified maximum. Some aspects of model uncertainty are discussed and the method is illustrated by means of an example.     

高科技创业上市公司商业模式设计对其IPO估值的影响

高科技创新型企业是人们目前关注的热点,目前我国创业板公司就成为资本市场的新宠儿。而对商业模式的研究也属于前沿领域,众多学者对于商业模式还没有权威清晰的定义。本文的目的就在于研究高科技上市公司商业模式设计与其在资本市场估值的关系。本文对商业模式设计及托宾q值的理论文献进行了回顾,通过对创业板281家上市公司的商业模式设计的研究,并通过小组讨论,对每一家公司的商业模式进行了评价及评分。再通过spss软件分析了这281家公司的商业模式评分与其市场价值、财务数据之间的关系。     

Structural Models of Factor Demands and Technological Change: An Empirical Assessment of Dynamic Adjustment Specifications for Sectors of the Dutch Economy

In this paper, we combine a translog cost functional form with an adjustment process according to the error correction mechanism to explain the simultaneous determination of factor demands and technological change. To save degrees of freedom in the estimation procedure, we also consider the imposition of restrictions on the matrices of lag parameters and/or the covariance matrix of the disturbances. Using a model selection strategy based on a combination of economic-theoretical considerations and a formal model selection criterion, a model is selected for each of 17 sectors of the Dutch economy. It turns out that, for 14 of the 17 sectors under consideration, a model is chosen that allows the imposition of restrictions with respect to the matrices of lag parameters. A comparison of the present results with those obtained by Lesuis and de Boer reveals that the application of more general dynamic structures leads to results that are more in accordance with economic theory.     

基于Little-JIL供应链管理核心过程的研究

论述了供应链管理的过程理论以及流程重组的一个基础架构。介绍了Little-JIL——一种用来编写协作过程代码的、可执行的、具有正式且图形化的语法和严密定义的语义规则的高级语言,对过程的建模与分析。使用Little-JIL编写可执行的过程模型,建立过程仿真,对过程做静态和动态的分析,支持过程代码的分布式部署实施,并以供应链管理的核心过程客户服务关系管理为例进行实证研究。