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2007 IEEE International Conference on systems, Man, and Cybernetics, SMC 2007

作者： Kagawa, Tsuneo Shimamura, Naoki Nishino, Hiroaki Utsumiya, Kouichi Faculty of Engineering Computer Science and Intelligent System Oita University 700 Dannoharu Oita City Japan

ISBN: (纸本)1424409918

Virtual reality technologies become very popular for many users. Advanced force feedback devices can realize tactile sensation in the virtual space. These devices are expected to bring advanced interactions between human and computer. On the other hand, photo retouch or painting softwares are also very popular. However, they can not always use these tools easily because operation are very complicated. In this paper, we discuss about a new advanced retouch tool with haptic (force feedback) interfaces. Users can utilise additional haptic information for image processing. By using a prototype of this tool, we discuss about a method of haptic rendering and display for image features. © 2007 IEEE.

关键词： Virtual reality

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Parallel algorithm for finding the minimum edges to make a disconnected directed acyclic graph strongly connected

Parallel algorithm for finding the minimum edges to make a d...

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2nd International Conference on Innovative Computing, Information and Control, ICICIC 2007

作者： Itokawa, Tsuyoshi Tada, Akio Migita, Masahiro Computer Science and Electrical Engineering Graduate School of Science and Technology Kumamoto University Department of Computer System Technology Faculty of Computer and Information Sciences Sojo University Center for Multimedia and Information Technologies Kumamoto University

ISBN: (纸本)0769528821

A problem to make a graph strongly connected is one of the most fundamental problems in graph theory. The known parallel algorithm[1] solves this problem in O(log n) time using O(n3) processors on a CRCW PRAM model. In this paper we present a parallel algorithm to find the minimum edges to make a disconnected directed acyclic graph strongly connected in O (log(m + n)) time using O(m + n) processors on a CREW PRAM model. This algorithm is an efficient parallel algorithm because the number of processors varies according to the density of the given graph. © 2007 IEEE.

关键词： Parallel algorithms

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Ionospheric GPS-TEC during the 2004 major storm events at Scott Base station Antarctica

Ionospheric GPS-TEC during the 2004 major storm events at Sc...

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2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007

作者： Sulaiman, Sumazly Ali, Mohd Alauddin Mohd Yatim, Baharudin Computer Science Department Universiti Malaysia Terengganu Kuala Terengganu Malaysia Electrical Electronic and System Department Faculty of Engineering Universiti Kebangsaan Malaysia Institute of Space Sciences Universiti Kebangsaan Malaysia

ISBN: (纸本)1424410940

In this work, we investigate the characteristics of the 2004 major storm events based on GPS-TEC measurement at Scott Base station Antarctica (77.9S, 166.8E). The F2 layer critical frequencies and peak height during the storm from the ionosonde measurement at the station are also investigated. Our main emphasis will be on the characteristics and response during major storms events. Our results will include the daily GPS-TEC and F2 layer critical frequencies and peak height from KEL IPS-42 ionosonde measurements at Scott Base Station. For the year 2004, 4 storm days are classified as major storms, which have occurred on 27th July 2004, referred to as Storm-A and on 8th to 10th November 2004 referred to as Storm-B. The World Data Center (WDC) Kp, Dst, and Ap highest indices for Storm-A is 9, -197 nT, and 162 respectively while for Storm-B is 9, -373 nT, and 189 respectively. The response of the ionosphere will provide us some indicators of the processes and geophysical changes of the Sun-Heliospheric system during the intense geomagnetic storm period. ©2007 IEEE.

关键词： Storms

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A method of haptic interaction for photo-retouch tools

A method of haptic interaction for photo-retouch tools

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IEEE International Conference on systems, Man and Cybernetics

作者： Tsuneo Kagawa Naoki Shimamura Hiroaki Nishino Kouichi Utsumiya Faculty of Engineering Computer Science and Intelligent System Oita University Oita Japan

关键词： Haptic interfaces Space technology Force feedback Virtual reality Humans Painting Image processing Software prototyping Prototypes Rendering (computer graphics)

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Development of a handshake robot system based on a handshake approaching motion model

Development of a handshake robot system based on a handshake...

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IEEE/ASME (AIM) International Conference on Advanced Intelligent Mechatronics

作者： Mitsuru Jindai Tomio Watanabe Faculty of Computer Science and System Engineering Okayama Prefectural University Soja Okayama Japan

Handshake refers to embodied interaction using physical contact for closeness. In this paper, we analyze the handshake approaching motion between humans in cases with and without voice greeting and propose a handshake approaching motion model based on the analysis. In this model, a robot can generate handshake approaching motion that is emotionally acceptable to humans by using the second-order lag element and the dead time element from trajectory of human hand. Furthermore, a handshake robot system that adopts this proposed model is developed and motion characteristics of handshake approaching motions with and without voice greeting are analyzed using analysis-by-synthesis technique. The effectiveness of this model and the handshake robot system are demonstrated by sensory evaluation.

关键词： Motion analysis Speech analysis Robot sensing systems Displays Human robot interaction Motion measurement Anthropometry Reflection Wrist Elbow

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Protecting the exchange of medical images in healthcare process integration with Web services

Protecting the exchange of medical images in healthcare proc...

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40th Annual Hawaii International Conference on system sciences 2007, HICSS'07

作者： Chiu, Dickson K.W. Hung, Patrick C.K. Cheng, Vivying S.Y. Kafeza, Eleanna IEEE Dickson Computer System 7A Victory Avenue Kowloon Hong Kong Faculty of Business and Information Technology University of Ontario Institute of Technology Canada Department of Computer Science and Engineering Hong Kong University of Science and Technology Department of Marketing and Communications Athens University of Economics and Business

ISBN: (纸本)0769527558

There is now an increasing demand for sharing images and image data for process integration among healthcare institutions. Web services technology has recently been widely proposed and gradually adopted as a platform for supporting integrations. The Health Insurance Portability and Accountability Act (HIPAA) imposes rules as national standards to protect individuals' health information in the U.S., highlighting security and privacy protection requirements. There are so far no holistic solutions to tackle the various protection issues in this area, especially in inter-institutional healthcare progress integration. We propose the exchange of medical images through a Medical Image Exchange Platform (MIEP), especially replacing ad-hoc and manual exchange practices. We show how contemporary technologies of Web services and watermarking can help archive images with layered implementation architecture. Through dedicated Web services technologies with watermarking mechanism, not only can the development, deployment, and maintenance of software be streamlined, the privacy protection in medical image exchanges as required by disparate processes can also be much facilitated. © 2007 IEEE.

关键词： Medical imaging

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An Evaluation of Traceability Approaches to Support Software Evolution

An Evaluation of Traceability Approaches to Support Software...

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International Conference on Software engineering Advances (ICSEA)

作者： Siti Rochimah Wan M. N. Wan Kadir Abdul H. Abdullah Software Engineering Department Faculty of Computer Science and Information System Universiti Teknologi Malaysia Malaysia

Requirements traceability is becoming increasingly significant element in software engineering. It provides critical function in the development and maintenance of a software system. From the software evolution point of view, requirements traceability plays an important role in facilitating software evolution. Since the evolution is inevitable, a traceability approach must take as much as possible the important influencing aspects into account to the evolution processes in order to minimize the evolution efforts. This paper evaluates several recent traceability approaches published in literature with the focus on their contributions to software evolution. The evaluation results may be used as a basis for improving requirements traceability approaches that may simplify the software evolution tasks.

关键词： Software engineering Software systems Information retrieval Indexing Algorithm design and analysis computer science Information systems Software maintenance Resumes Software algorithms

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Design and Analysis of Swing-up Control for a 3-Link Gymnastic Robot with Passive First Joint

Design and Analysis of Swing-up Control for a 3-Link Gymnast...

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Proceedings of the 46th IEEE Conference on Decision and Control, Pages 1383-1838

作者： Xin Xin Masahiro Kaneda Department of Communication Engineering Faculty of Computer Science and System Engineering Okayama Prefectural University Soja Okayama Japan

ISBN: (纸本)9781424414970;1424414970

This paper concerns a swing-up control problem for a 3-link gymnastic planar robot in a vertical plane, whose first joint is passive (unactuated) and the rest are active (actuated). The objectives of this paper are: 1) to design a controller under which the robot can be brought into any arbitrarily small neighborhood of the upright equilibrium point, where all three links of the robot remain in their upright positions;2) to attain a global analysis of the motion of the robot under the controller. To tailor the energy based control approach to achieve the above objectives, first, this paper considers the links 2 and 3 as a virtually composite link and proposes a coordinate transformation of the angles of active joints. Second, this paper constructs a novel Lyapunov function based on the transformation, and devises an energy based swing-up controller. This paper presents a necessary and sufficient condition for nonexistence of any singular points in the controller for the robot starting from any initial state. Third, this paper carries out a global analysis of the motion of the robot under the controller, and establishes some conditions on control parameters for achieving the swing-up control objective. To validate the theoretical results obtained, this paper provides simulation results for a 3-link robot whose mechanical parameters are obtained from a human gymnast.

关键词： Robot Swing-up control Controllers Coordinate transformations wobbling Gymnastic robot control parameter equilibrium point Liapunov function paper Joints robot controller

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Deciding to adopt requirements traceability in practice

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19th International Conference on Advanced Information systems engineering

作者： Blaauboer, Floris Sikkel, Klaas Aydin, Mehmet N. Accenture System Integration and Technology Netherlands University of Twente Faculty of Electrical Engineering Mathematics and Computer Science 7500 AE Enschede PO Box 217 Netherlands University of Twente School of Management and Governance 7500 AE Enschede PO Box 217 Netherlands

ISBN: (纸本)9783540729877

The use of requirements traceability for information systems development (ISD) projects is not very common in practice despite its often mentioned advantages in the literature. We conducted a case study in a large IT company to identify the factors that are relevant for the decision whether or not to adopt traceability in an ISD project. Five dominant factors emerged: development organization awareness, customer awareness, return on investment, stakeholder preferences, and process flow. It turned out that the majority of the software development project leaders we interviewed were not aware of the concept of traceability - with the obvious result that using traceability in software project is not even considered. This fact has possibly been underestimated in the present literature of requirements engineering.

关键词： requirements traceability decision-making requirements engineering

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Translocation and insertion of an amphiphilic polymer

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Physical Review E 2007年第1期76卷 011801-011801页

作者： Satoshi Tsuchiya Akihiko Matsuyama Department of Bioscience and Bioinformatics Faculty of Computer Science and System Engineering Kyushu Institute of Technology Kawazu 680-4 Iizuka Fukuoka 820-8502 Japan.

Translocation of amphiphilic polymers (random and block copolymers), consisting of hydrophilic and hydrophobic monomers, threading a pore is studied by using a three-dimensional dynamic Monte Carlo simulation. We find that there is a “translocation-insertion” threshold in the fraction of hydrophobic monomers on an amphiphilic polymer. The translocation time is given by simple scaling laws and increases with increasing the fraction of hydrophobic monomers.

关键词： Block copolymers

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