Organizing Projects Around the Mitigation of Risks Arising from System Dynamic Behavior

Many of the key products and services used by modern societies are the result of large-scale engineering projects. Despite decades of theoretical and practical work in the art of systems engineering and project management, project execution results remain somewhat inconsistent, in the sense that many projects fail to produce a product that meets the original specifications, and many more projects achieve some measure of technical success only after taking significantly more time and/or money than originally expected. One source of such failures is the occurrence of unplanned and adverse dynamic behavior in the resulting system. This paper summarizes research being conducted to look at the potential of design-phase actions that centralize control of the eventual system''s dynamic behavior as a potential solution to some instances of this problem. This approach could lead to increased chances of success on future major system development projects, through a new method for instituting better control of the dynamic behavior of such a system.     

机电一体化培训和教育中的电子移动学习课件开发(英文)

Knowledge is essential for the competitiveness of individuals as well as organizations.Thus the application of the latest methodologies and technologies are utilized to support knowledge acquisition,warehousing,distribution,and transfer.Means and methods of web 2.0 are useful to support this procedure.Especially,highly complex and very dynamic knowledge domains have to be accessible and applicable in the framework of learning network communities,including the stakeholders of training and education.Mechatronics for example is such an interdisciplinary,dynamic field of research and application.Based on intelligence,software,and hardware it is requiring special approaches for developing a courseware based learning and knowledge transfer environment.After defining the specifics of mechatronics education and postgraduate training in the context of e-education,the concepts of the development and utilization of mechatronic courseware can be deduced from e-learning 2.0 and mobile learning facilities,possibilities,and abilities.Mechatronic courseware will be developed by using authoring software and embedding the material into learning management systems with respect to general methods and rules of modern system and software development.As an example,the courseware is used for vocational training and further education especially in cooperation networks of educational institutions and SME.     

Research of Graduation Project Management System Based on B/S Mode

Graduation project management system is designed and developed on B/S mode with C# language. The main flow of the system is students＇ selecting projects. System is designed on teachers, students and administrators, students. Focus on the project application, the project audit, the select projects and the results generated summary ect. It enables instructors to assign projects and students to select them online quickly and conveniently, and instructors can track and manage the graduation design in the whole course through the system. This system provides a good interactive platform of graduation design for teachers and students, which improves the efficiency and quality of the project selection of graduation design.     

基于过程模式的软件过程框架

Process pattern is an excellent method to express software process knowledge, it can express process knowledge in different granularity and realize the non-gap connection of process knowledge, it supports the reuse and persistent improvement of process knowledge. In this paper, we put forward a process Pattern Based Software Pro-cess Framework(PB-SPF), its three layer architecture has realized the high abstraction of software process and theseparation of its contents, so it have good reusability and adaptability. We can use it as a base for the research of soft-ware process, the building and enactment of process model.     

Construction of e-learning platform

With the rapid development of information technology, the knowledge increases by the way of explosion, and the rapid updating of knowledge challenges the traditional education so as to appeal people to change the learning concepts and the learning methods, lnternet, with its abundant resources, advanced technology and convenient way to obtain information, is favored by people. E-learning, as an innovative way of distance learning, provides a strong challenge to traditional learning with its unique advantage, will become lifelong learning as a major way. In this paper, the basic framework of e-learning platform has been built on the basis of development situation of domestic and foreign network education, and the different functions of the modules are analyzed, then the ideas to adapt to the new form of e-learning platform are put forward.     

A Practical Propositional Knowledge Base Revision Algorithm

This paper gives an outline of knowledge base revision and some recently presented complexity results about propostitional knowledge base revision.Different methods for revising propositional knowledge base have been proposed recently by several researchers,but all methods are intractable in the general case.For practical application,this paper presents a revision method for special case,and gives its corresponding polynomial algorithm.     

Modeling the Value-Based Software Process with Object-Petri-Nets

Commercial organizations increasingly need software processes sensitive to busi- ness value, quick to apply, supportive of multi-stakeholder collaboration, and capable of early analysis for subprocess consistency and compatibility. This paper and a companion paper \Applying Value-Based Software Process: An ERP Example" present our experience in ap- plying a lightweight synthesis of a Value-Based Software Quality Achievement (VBSQA) process and an Object-Petri-Net (OPN) based process model to achieve a stakeholder win- win outcome for software quality achievement in an ERP software project in China. We attempt to answer such questions as (1) whether it is possible to model various project stakeholder perspectives using formal process modeling languages in a real-world project? (2) how to make stakeholders synchronize and stabilize their value propositions, activities and commitments as needed. The companion paper presents the VBSQA process and its application to the ERP project; this paper presents the OPN-based process modeling and its application. The application results of OPN process modeling conˉrmed that (1) the OPN- based process model provided project managers with a synchronization and stabilization framework for process activities, success-critical stakeholders and their value propositions; (2) process visualization and simulation tools signiˉcantly increased management visibility and controllability for the success of the software project.     

The Modelling of Temporal Data in the Relational Database Environment

This research takes the view that the modelling of temporal data is a fundamental step towards the solution of capturing semantics of time.The problems inherent in the modelling of time are not unique to database processing.The representation of temporal knowledge and temporal reasoning arises in a wide range of other disciplines.In this paper an account is given of a technique for modelling the semantics of temporal data and its associated normalization method.It discusses the techniques of processing temporal data by employing a Time Sequence (TS) data model.It shows a number of different strategies which are used to classify different data properties of temporal data,and it goes on to develop the model of temporal data and addresses issues of temporal data application design by introducing the concept of temporal data normalisation.     

Progress in the Development of National Knowledge Infrastructure

This paper presents the recent process in a long-term research project,called National Knowledge Infrastructure(or NKI).Initiated in the early 2000,the project aims to develop a multi-domain shareable knowledge base for knowledge-intensive applications.To develop NKI,we have used domain-specific ontologies as a solid basis,and have built more than 600 ontologies.Using these ontologies and our knowledge acquisition methods,we have extracted about 1.1 millions of domain assertions.For users to access our NKI knowledge,we have developed a uniform multi-modal human-knowledge interface.We have also implemented a knowledge application programming interface for various applications to share the NKI knowledge.     

The video capture method base on DIrectShow

A method of using DirectShow to implement the video captures and storage was described in this paper.During his research,the author used this mdthod to solve the problem of video capture,compress and storage on different video card.At the same time,this technology also can be used at the video process of TV,Network bradcast,DVD,So it has brad application field.     

Framework of knowledge management in education based on knowledge grid

Knowledge grid is a kind of knowledge sharing environment based on the World Wide Web, and its essence is the synergy and sharing of internet knowledge resource and knowledge service. KM （knowledge management） in education based on KG （knowledge grid） makes use of the grid technology and integrates the methods and tools of KM in Education to support the whole cycle of knowledge application. Based on the advantages of KM in Education, in this paper, we construct a service-oriented model of KM in Education in order to achieve more effective knowledge sharing and knowledge service in education.     

双专业复合型软件工程课程体系的研究与实践(英文)

With IT technology continues to penetrate to other industries,the industry of information technology is becoming the focus of IT companies for business.The urgent need for industry information is the compound software talents who will both have strong project management skills,good technical background and fast learning ability.To this end,Dalian Jiaotong University,based on integrating information technology and its application in different areas,initiated the dual professional compound training model of "traditional professional + software engineering" in 2001 in the country.The aim for this model is to train software talents who are compound,practical and the international competitiveness.This paper focuses on the depth discussion of dual professional compound software engineering curriculum,and analyzes the need for reform of dual professional compound software engineering curriculum,then combines with IT industry needs and the actual situation in the school to put forward practical curriculum reform program.     

Human knowledge acquisition from 3D interaction in virtual environments

Recently,virtual environment (VE) based design and planning,which is a kind of interaction intensive computing,has shown great potential.Most users of such systems are specialists or technicians and their 3D interactions with the system embed a great deal of knowledge and skills.Thus,how to integrate human knowledge and skills into VE is a great challenge to researchers in the human computer interaction field.This paper proposes a method for acquiring user knowledge from VE.The main ideas and work include,abstracting the interactive process and formalizing the interactive semantics,as well as providing a semantic model of an interactive information repository,from which user interactive processes can be retrieved and all kinds of application logics can be established.A virtual assembly planning system is introduced as an example of a practical application of this method.Experiments show that the related models can well capture user knowledge and retrieve the interaction process.     

A Chain Datatype in Z

We present results about a general-purpose chain datatype specified in the Z notation and mechanised using the Z/Eves theorem prover. Our particular interest comes from its use in the specification and refinement of operating system kernels for embedded real-time devices as part of a pilot project within the international Grand Challenge in Verified Software, and to contribute to the Verified Software Repository. We show—at afairly high level—the sort of dogged work that is needed to get a body of results together to form a basis for future projects. Our work discusses important hidden and missing properties in the specification of the chain datatype and its relation to kernel design.     

Manifold Constrained Transfer of Facial Geometric Knowledge for 3D Caricature Reconstruction

3D caricatures are important attractive elements of the interface in virtual environment such as online game. However, very limited 3D caricatures exist in the real world. Meanwhile, creating 3D caricatures manually is rather costly, and even professional skills are needed. This paper proposes a novel and effective manifold transfer algorithm to reconstruct 3D caricatures according to their original 2D caricatures. We first manually create a small dataset with only 100 3D caricature models and use them to initialize the whole 3D dataset. After that, manifold transfer algorithm is carried out to refine the dataset. The algorithm comprises of two steps. The first is to perform manifold alignment between 2D and 3D caricatures to get a "standard" manifold map; the second is to reconstruct all the 3D caricatures based on the manifold map. The proposed approach utilizes and transfers knowledge of 2D caricatures to the target 3D caricatures well. Comparative experiments show that the approach reconstructs 3D caricatures more effectively and the results conform more to the styles of the original 2D caricatures than the Principal Components Analysis (PCA) based method.     

具有传输时延的网络控制系统故障估计与调节

In this paper, a method of fault estimation and fault tolerant control for networked control system (NCS) with transfer delay and process noise is presented. First, the networked control system is modeled as a multiple-input-multiple-output (MIMO) discrete-time system with transfer delays, process noise, and model uncertainties. Under this model and under some conditions, a fault estimation method is proposed to estimate the system faults. On the basis of the information on fault estimation and the sliding mode control theory, a fault tolerant controller is designed to recover the system performance. Finally, simulation results are used to verify the efficiency of the method.     

PD-based trajectory tracking control in automatic cell injection system

Trajectory tracking technology has been the focus of industrial manipulatory applications for many years, and its research has been found in micromanipulation in bioengineering recently. In this paper, a hybrid vision and force control method is applied to the automatic cell injection. The three-dimensional cell injection process involves the trajectory tracking in free space and the force control in contact space. A PD plus feedforward compensation control method is applied to the trajectory tracking in 3D space. Further, a PD-based robust controller is introduced into trajectory tracking while the systemic uncertainty of the cell injection is additionally considered. Both of the two control methods are theoretically proved to be exponential convergent. Finally, the effectiveness of the proposed method is verified as compared with other control methods by its application to trajectory tracking problem.     

Clustering mechanism for electric tomography imaging

Electrical tomography(ET) imaging,developed in the 1980s,has attracted much industrial and research attentions owing to its low cost,quick response,lack of radiation exposure,and non-intrusiveness compared to other tomography modalities.However,to date applications thereof have been limited owing to its low imaging resolution.The issue with space resolution in existing ET imaging reconstruction methods is that they employ a mathematical approach based on an ill-posed equation with inconsistent solutions.In this paper,we propose a novel ET imaging method based on a data-driven approach.By recovering the cluster structures hidden in the ET imaging process followed by the application of a fuzzy clustering algorithm to identify the cluster structures,there is no need to study the ill-posed mathematical formulation.The proposed method has been tested by means of three experiments,including image reconstructions of a human lung image and plastic rode shape,as well as two simulations executed on the Comsol platform.The results show that the proposed method can reconstruct ET images with much higher space resolution more quickly than the existing algorithms.     

先验知识与基于核函数的回归方法的融合

In some sample based regression tasks, the observed samples are quite few or not informative enough. As a result, the conflict between the number of samples and the model complexity emerges, and the regression method will confront the dilemma whether to choose a complex model or not. Incorporating the prior knowledge is a potential solution for this dilemma. In this paper, a sort of the prior knowledge is investigated and a novel method to incorporate it into the kernel based regression scheme is proposed. The proposed prior knowledge based kernel regression (PKBKR) method includes two subproblems: representing the prior knowledge in the function space, and combining this representation and the training samples to obtain the regression function. A greedy algorithm for the representing step and a weighted loss function for the incorporation step are proposed. Finally, experiments are performed to validate the proposed PKBKR method, wherein the results show that the proposed method can achieve relatively high regression performance with appropriate model complexity, especially when the number of samples is small or the observation noise is large.     

具有传输时延的网络控制系统故障估计与调节

In this paper,a method of fault estimation and fault tolerant control for networked control system (NCS) with transfer delay and process noise is presented.First,the networked control system is modeled as a multiple-input-multiple-output (MIMO) discrete-time system with transfer delays,process noise,and model uncertainties.Under this model and under some conditions, a fault estimation method is proposed to estimate the system faults.On the basis of the information on fault estimation and the sliding mode control theory,a fault tolerant controller is designed to recover the system performance. Finally, simulation results are used to verify the efficiency of the method.