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4th international conference on computer Sciences and Convergence Information technology

作者： Na, Kido Lee, Gwang-Gook Ahn, Byung-Ju Kim, Whoi-Yul Kim, Jea-Jun Hanyang Univ Dept Sustainable Architectural Engn Seoul 133791 South Korea Hanyang Univ Dept Elect & Comp Engn Seoul South Korea Jeonju Univ Dept Architectural Engn Jeonju South Korea Hanyang Univ Dept Architectural Engn Seoul South Korea Hanyang Univ Dept Sustainable Architectural Engn Seoul South Korea

ISBN: (纸本)9781424452446

The concept and range of spatial information are gradually expanding to various fields through fusion in a point of time when a ubiquitous environment is rapidly developing. Thus, a prototype for construction of a real-time spatial information management system has been developed by integrating a human movement sensing system into a SICS(Spatial Information Control System) engine that can integrally manage inside spatial information extracted from 3D CAD and outside spatial information of GIS. Also, the future research development direction was decided through a pilot test. The Add-on program was developed to extract spatial information necessary for the SICS engine from 3D CAD information, and a human movement sensing system was developed through human movement sensing technology to obtain information of the number of indoor personnel, and thus the interface capable of being utilized was developed by integrating these technologies.

关键词： component SICS(Spatial Infromation control system) Imange processing spatial information pilot test Add-on program

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Container process flow visualization by spatial location technologies

Container process flow visualization by spatial location tec...

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2009 2nd Asia-Pacific conference on Computational Intelligence and Industrial Applications, PACIIA 2009

作者： Cai, Hong Hu, Zhi-Hua Liu, Wei Glorious Sun School of Business and Management Donghua University Shanghai China Logistics Research Center Shanghai Maritime University Shanghai China Shanghai Baogui Industry Co. LTD Shanghai China

ISBN: (纸本)9781424446070

With the development of domestic economy and international trade, the containerization is playing an important role in the industries. Its function is extended from the transport unit and storage devices. The container process is becoming a critical aspect of business process flow. By the modern information technologies, it is possible to visualize the container process flow for the business management and control. This paper studies the modeling and visualization issue of it and proposes the spatial location model considering the time and space dimensionalities in container processes. Finally, a decision support framework is proposed to incorporate the various visualization technologies. The study will help to build management and control system for container process flow as a concrete framework of solution. ©2009 IEEE.

关键词： international trade

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Research and development of an on-line instrument for measuring cooling air flow of car radiator

Research and development of an on-line instrument for measur...

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9th international conference on Electronic Measurement and Instruments, ICEMI 2009

作者： Bian, Aiqi Wang, Xihan Shen, Yuming School of Optical-Electrical and Computer Engineering University of Shanghai for Science and Technology Shanghai 200093 China

ISBN: (纸本)9781424438624

A new instrument for measuring cooling air flow of car radiator is introduced after analyzing existing instruments and methods, and the measuring principle and design method of new instrument is described in detail too. On-line measurement can be realized by the new instrument, and the information of cooling air flow distribution can also be got during the measuring process. In addition, the new instrument could recognize the wind direction well. The test results demonstrated that the instrument is reliable and the measurement accuracy is high, so the instrument is worth being spread and applied. ©2009 IEEE.

关键词： Air

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Test-Bed Based Comparison of Single and Parallel TCP and the Impact of Parallelism on Throughput and Fairness in Heterogenous Networks

Test-Bed Based Comparison of Single and Parallel TCP and the...

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international conference on computer technology and development (icctd)

作者： Mohamed A. Alrshah Mohamed Othman Department of Communication Technology and Networks Universiti Putra Malaysia Serdang Selangor Darul Ehsan Malaysia

Parallel transport control protocol (TCP) has been used to effectively utilize bandwidth for data intensive applications over high bandwidth-delay product (BDP) networks. On the other hand, it has been argued that, a single based TCP connection with proper modification such as HSTCP can emulate and capture the robustness of parallel TCP and can well replace it. In this work a Comparison between single-based and the proposed parallel TCP has been conducted to show the differences in their performance measurements such as throughput performance and throughput ratio, as well as the link sharing fairness also has been observed to show the impact of using the proposed parallel TCP on the existing single-based TCP connections. The experiment results show that, single-based TCP cannot overcome parallel TCP especially in heterogeneous networks where the packet losses are common. Furthermore, the proposed parallel TCP does not affect TCP fairness which makes parallel TCP highly recommended to effectively utilize bandwidth for data intensive applications.

关键词： Testing Throughput Bandwidth Robustness Protocols computer networks Concurrent computing Parallel processing Communications technology Communication system control

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Simulation of embedded applications implemented in embedded process functional language

Simulation of embedded applications implemented in embedded ...

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CSSim 2009 - 1st international conference on Computational Intelligence, Modelling, and Simulation

作者： Běhálek, Marek Šaloun, Petr Department of Computer Science Faculty of Electrical Engineering and Computer Science VŠB Technical University of Ostrava 17. listopadu 15 Ostrava Czech Republic Department of Informatics and Computers Faculty of Science University of Ostrava 30. dubna 22 Ostrava Czech Republic

ISBN: (纸本)9780769537955

Functional programming paradigm is very attractive for implementation of embedded systems. Process functional language can be very useful from this perspective. Process functional language was developed to integrate good properties of functional and imperative languages. We have created a language mutation called Embedded process functional language designed for implementation of embedded applications. An emulator simulating embedded process functional programs is needed for purpose of development and also for debugging. This paper aims on developed emulator and created Embedded process functional language. © 2009 IEEE.

关键词： Embedded systems

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The Application of Web technology In Electronic Commerce

The Application of Web Technology In Electronic Commerce

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international conference on computer technology and development (icctd)

作者： X.M. Han Res. Center of Cluster & Enterprise Dev. Jiangxi Univ. of Finance & Econ. Nanchang China

Web Services have become a viable component technology in distributed E-commerce platforms. Due to the move to high-speed Internet communication and tremendous increases in computing power, network latency has begun to play a more important role in determining service response time. A new model of distributed E-commerce architecture was presented for Web technology, which aimed at integration and inter-operation between different platforms. It is an application that is supported by those open criterions and technologies involving XML, SOAP, WSDL and UDDI. By the mechanisms such as service definition, service advertising, service discovery, service binding and service invocation, it accomplishes a loose coupling frame of enterprise application integration. In the paper, we introduce how to apply Web technology in the electronic commerce. Firstly, we analyze and research E-commerce based on Internet, and bring forward some problems and suggestions of E-commerce. At last, we also put forward some key techniques, which decide E-commerce smooth operation.

关键词： Electronic commerce Delay Web services IP networks Web and internet services computer networks computer architecture Service oriented architecture XML Simple object access protocol

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Digital manufacturing: history, perspectives, and outlook

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PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE 2009年第5期223卷 451-462页

作者： Chryssolouris, G. Mavrikios, D. Papakostas, N. Mourtzis, D. Michalos, G. Georgoulias, K. Univ Patras Dept Aeronaut & Mech Engn Patras Greece

Digital manufacturing has been considered, over the last decade, as a highly promising set of technologies for reducing product development times and cost as well as for addressing the need for customization, increased product quality, and faster response to the market. This paper describes the evolution of information technology systems in manufacturing, outlining their characteristics and the challenges to be addressed in the future. Together with the digital manufacturing and factory concepts, the technologies considered in this paper include computer-aided design, engineering, process planning and manufacturing, product data and life-cycle management, simulation and virtual reality, automation, process control, shopfloor scheduling, decision support, decision making, manufacturing resource planning, enterprise resource planning, logistics, supply chain management, and e-commerce systems. These technologies are discussed in the context of the digital factory and manufacturing concepts.

关键词： information technology computer-integrated manufacturing computer-aided design computer-aided engineering computer-aided manufacturing

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Turn-on Time Delay of Uncooled Semiconductor Laser Diode Subject to External Optical Feedback: Theoretical Analysis

Turn-on Time Delay of Uncooled Semiconductor Laser Diode Sub...

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international conference on computer technology and development (icctd)

作者： Mohammad Syuhaimi Ab-Rahman Mazen R. Hassan Computer & Network Security Research Group Faculty of Engineering & Built Environment Department of Electrical Electronic and Systems Engineering University Kebangsaan Malaysia Bangi Selangor Darul Ehsan Malaysia

In this paper, the effect of external optical feedback (EOF) on the turn-on time delay (t on ) of uncooled semiconductor laser diode (SLD) is investigated theoretically. The effects temperature of operation (T) and EOF on t on are calculated according to their effect on threshold carrier density (N th ). The temperature dependence (TD) of N th is calculated according to the TD of laser cavity parameters and not by the well-known Parkove relationship. Simulation results show that t on increases as T increases due to increasing of N th . In addition, t on decreases as external reflectivity (r ext ) increases when the phase of reflected light is coherent. While at incoherent reflected light, t on increases sharply around specified value of r ext where this leads to inoperable case for SLD.

关键词： Delay effects Diode lasers Optical feedback Superluminescent diodes Temperature Laser feedback Charge carrier density Laser theory Reflectivity Optical fiber networks

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A partition-based LEACH algorithm for wireless sensor networks

A partition-based LEACH algorithm for wireless sensor networ...

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IEEE 9th international conference on computer and Information technology, CIT 2009

作者： Gou, Haosong Yoo, Younghwan Zeng, Hongqing School of Computer Science and Engineering Pusan National University Busan Korea Republic of ISBU China Research and Development Center Cisco System Inc. Shanghai China

ISBN: (纸本)9780769538365

Wireless sensor networks (WSN) have been considered as a promising method for reliably monitoring both civil and mili-tary environments under hazardous or dangerous conditions. Due to such environments, the power supplies for sensors in the network are not usually rechargeable or replaceable. There-fore, the energy efficiency is critical for the lifetime and cost of WSN. Numerous mechanisms have been proposed to reduce the impact of communication protocols on the overall energy dissipation of WSN. The low-energy adaptive clustering hierarchy (LEACH) deploys randomized rotation of cluster-heads to evenly distribute the energy load among all sensors in a WSN. This paper proposes an improved LEACH algorithm called partition-based LEACH (pLEACH), which firstly parti-tions the network into optimal number of sectors, and then selects the node with the highest energy as the head for each sector, using the centralized calculations. The simulation results and analysis show that pLEACH could achieve much better performance of WSN in terms of the energy dissipation and network lifetime. © 2009 IEEE.

关键词： Energy dissipation

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Knowledge Sharing Interactions in Collaborative Software Maintenance Environment

Knowledge Sharing Interactions in Collaborative Software Mai...

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international conference on computer technology and development (icctd)

作者： Mohd Zali Mohd Nor Rusli Abdullah Mohd Hasan Selamat Masrah Azrifah Azmi Murad Faculty of Computer Science and Information Technology Universiti Putra Malaysia Serdang Malaysia

In collaborative Software Maintenance (SM) environment, knowledge sharing is vital to ensure various parties have the necessary information to perform SM tasks. However, patterns of knowledge sharing interactions within the networked organization of SM Community of Practice (CoP) and factors that influence these interactions are yet to be established. We study the dialogues captured in the Software Configuration Management (SCM) tool used by a global SM organization and use Pajek, a Social Network Analysis (SNA) tool, to map the interactions among users and maintenance personnel. The results revealed technical, planning and domain information as most shared information. Network bottlenecks are also identified, which evolves around a key development manager, a development team leader and a systems analyst. Also, there are lack of direct interactions between programmers and domain knowledge providers. As such, the SM environment could benefit from process automations on selected tasks of the above bottleneck areas to ensure knowledge are shared across the board.

关键词： Collaborative software Software maintenance Samarium Project management computer science Knowledge management Software tools Social network services Personnel Collaboration

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