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International Conference on Complex, Intelligent and Software Intensive Systems, CISIS

作者： Shunsuke Oshima Takuo Nakashima Yusuke Nishikido Information and Electronic Engineering Yatsushiro National College of Technology Japan School of Industrial Engineering Tokai University Japan Production Engineering and Computer Science Course Yatsushiro National College of Technology Japan

ISBN: (纸本)9781424435692

To defend DoS (denial of service) attacks, an access filtering mechanism is adopted in the end servers or the IDS (intrusion detection system). The difficulty to define the filtering rules lies where normal and anomaly packets have to be distinguished in incoming packets. The purpose of our research is to explore the early detective method for anomaly accesses based on statistic analysis. In this paper, we defined the chi-square method, and then analyze the all amount of incoming packets to our College focusing on the source IP address using chi-square method. As the results, we were able to extract the following features. Firstly, the number of packets was the more suitable scale of the window in the chi-square method than the time scale. Secondly, the setting of the window size with 500 packets and 2 bins made the detection of the DoS attacks within 10 minutes for DNS packets possible. Finally, we verified that the DoS attacks from the same source IP address was detected using the chi-square method.

关键词： Educational institutions computer crime Filtering Web server Intrusion detection Information security Network servers Testing Competitive intelligence Software systems

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Design studies on hybrid excitation motor for main spindle drive in machine tools

Design studies on hybrid excitation motor for main spindle d...

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2008 International Conference on Electrical Machines, ICEM'08

作者： Kosaka, Takashi Muthu Babu Sridhar Babu Yamamoto, Masayoshi Matsui, Nobuyuki Dept. of Computer Science and Engineering Graduate Course of Engineering Nagoya Institute of Technology Gokiso Showa Nagoya 466-8555 Japan

ISBN: (纸本)9781424417360

This paper presents a hybrid excitation motor for a main spindle drive in end- and face-milling tools which is operated with high speed 50,000min -1. The proposed motor has not only a permanent magnet but also the field coil which makes field weakening and strengthening control possible with taking no notice of the magnet demagnetization. In addition, the sum of iron and copper losses of the motor at the end-milling operation is significantly reduced by the field weakening control. 3D-FEM based design studies on the proposed motor for the target application are demonstrated. © 2008 IEEE.

关键词： Permanent magnets

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GPS aided effective information discovery over mobile Ad hoc network

GPS aided effective information discovery over mobile Ad hoc...

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2008 International Conference on Parallel and Distributed Processing Techniques and Applications, PDPTA 2008

作者： Fukushi, Naohide Utsu, Keisuke Ishii, Hiroshi Course of Computer and Communications Graduate School of Engineering Tokai University Hiratsuka Kanagawa Japan Course of Embedded Technology Professional Graduate School of Embedded Technology Tokai University Minato Tokyo Japan

ISBN: (纸本)1601320841

Many studies have been made for MANET (Mobile Ad Hoc Networks) as a communication tool which is an autonomous network requiring no fixed infrastructures such as base stations. However, contents discovery mechanism is not well tackled. This paper tackles with contents discovery which needs urgency such as refuge, home, hospital, and so on especially in case of disaster. It proposes and shows the effectiveness of an efficient discovery algorithm making the most of GPS and map information without knowing route information or node addresses which is mandatory in the existing studies.

关键词： Mobile ad hoc networks

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Teaching real operating systems with the lttng kernel tracer

Teaching real operating systems with the lttng kernel tracer

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2008 ASEE Annual Conference and Exposition

作者： Desnoyers, Mathieu Dagenais, Michel Ecole Polytechnique de Montreal Real-time System Course Department of Computer and Software Engineering Ecole Polytechnique de Montreal

computer systems involve increasingly complex hardware components and software abstractions, e.g. an Xen Hypervisor managing virtual machines running on a multi-core CPU. In the industry, computer engineers are asked to understand these technologies. To tackle this task, companies developing large scale and embedded systems rely on tracing tools to get precise performance monitoring and behavior analysis information. This paper first discusses the industry need for computer engineers with a good understanding of computer systems. Subsequently, it illustrates how the Linux Trace Toolkit Next Generation (LTTNG) kernel tracer, widely used in the industry, can be used to explain operating system concepts through realistic examples. Finally, the methodology used to introduce these examples to undergraduate computer engineering students is outlined. © American Society for engineering Education, 2008.

关键词： computer operating systems

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Calligraphy-brush writing-training system with three-dimensional I/O devices

Calligraphy-brush writing-training system with three-dimensi...

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Interfaces and Human computer Interaction 2008, MCCSIS'08 - IADIS Multi Conference on computer Science and Information Systems

作者： Nobuyuki, Esaki Hiroki, Matsueda Tetsuo, Takeshita Naoki, Okabe Department of Information and Computer Engineering Toyota National College of Technology 2-1 Eiseicho Toyota Aichi 471-8525 Japan Advanced Engineering Course of Computer Science Toyota National College of Technology Japan Department of Information and Computer Engineering Toyota National College of Technology Japan

ISBN: (纸本)9789728924591

In the Chinese character culture area, calligraphy-brush writing is important technique, which sometimes develops to art. To acquire this skill, we need to train for long term under masters' guidance. On the other hand, one of the 3D pointing devices, the PHANTOM omni, also has a haptic function, which is available to create the senses of both vision and force virtually. Furthermore LCD shutter glasses aid us to be absorbed in the virtual reality. Therefore we propose implementation of a virtual training system for the calligraphy-brush- writing with these 3D I/O devices. The 3D I/O devices and their APIs are familiar to archive the virtual environments for our purpose easily. Especially the haptic functions are useful to memorize masters' writing motions and to recover them when the apprentices train. Consequently, this system is useful for the apprentices to train the calligraphy-brush writing skill.

关键词： Glass

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Performance Study on Multipoint-to-Point Video Streaming over Mobile Ad Hoc Networks

Performance Study on Multipoint-to-Point Video Streaming ove...

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2008 International Conference on Parallel and Distributed Processing Techniques and Applications, PDPTA 2008

作者： Utsu, Keisuke Chow, Chee Onn Nishikawa, Hiroaki Ishii, Hiroshi Course of Computer and Communications Graduate School of Engineering Tokai University Hiratsuka Kanagawa Japan Department of Electrical Engineering University of Malaya Kuala Lumpur Malaysia Department of Computer Science Graduate School of Systems and Information Engineering University of Tsukuba Tsukuba Ibaraki Japan Course of Embedded Technology Professional Graduate School of Embedded Technology Tokai University Minato Tokyo Japan

ISBN: (纸本)1601320841

Supporting multimedia applications over wireless networks has become a very active research topic recently because video applications are prognosticated to receive high demand in future wireless networks, such as ad hoc networks. However, enabling video transmission over wireless ad hoc networks is more challenging than over other wireless networks due to the node mobility, interference and the absence of supporting infrastructure. This paper addresses the problem of video transmission over ad hoc networks. We propose to combine Multiple Description Coding (MDC) with multiple source transport (Multipoint-to-Point: MP2P) video transmission in order to maintain a smooth video streaming over wireless ad hoc networks. In this paper, we perform comprehensive simulation and test bed experiment in order to show the effect of the proposed MP2P video transfer with MDC for two descriptions case on video streaming over wireless ad hoc networks. The results show that the proposed mechanism successfully improves the video transfer performance in terms of video packet reachability and throughput.

关键词： Video streaming

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TATUBOT – Robotic System for Inspection of Undergrounded Cable System

TATUBOT – Robotic System for Inspection of Undergrounded Ca...

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IEEE Latin American Robotics Symposium, LARS

作者： Claudio Mello Jr. Eder Mateus Gonçalves Emanuel Estrada Gabriel Oliveira Humberto Souto Jr. Renan Almeida Silvia Botelho Thiago Santos Vinícius Oliveira Computer Engineering Course Federal University of Rio Grande Mexico Computer Engineering Course Federal University of Rio Grande Brazil

In this paper, it is presented the development of an innovative and low-cost robotic mobile system to be employed in inspection of underground electrical distribution lines and pipes. The system is composed of a robot with different sensors (infrared, acoustic, and FEF) which permit to move inside pipes and detect overheated points, partial electrical discharges and the occurrence of cable treeing. It is showed the mechanical structure of the robot, the overall architecture of the system and preliminary results.

关键词： Inspection Robot sensing systems Power cables Infrared sensors Infrared detectors Mobile robots Mechanical sensors Sensor systems Acoustic sensors Acoustic signal detection

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Trust relationship based self-organized public key Management over MANET

Trust relationship based self-organized public key Managemen...

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2008 International Conference on Parallel and Distributed Processing Techniques and Applications, PDPTA 2008

作者： Kawabata, Hideaki Ishii, Hiroshi Course of Computer and Communications Graduate School of Engineering Tokai University Hiratsuka Kanagawa Japan Professional Graduate School of Embedded Technology Tokai University Minato Tokyo Japan

ISBN: (纸本)1601320841

Several key management frameworks have been proposed as a certification technology in mobile ad hoc networks. However, these methods require a long time to collect and a huge memory to store all the certificates in the network. Generally these involve a huge cost of communication. Moreover, the validity of each certificate has to be checked periodically. In this paper, we propose a trust relationship based self-organized Public key management scheme. This proposed scheme requires each node to manage the certificates generated by itself only, and at the time when certification is needed, a node collects the certificates from other nodes based on the record in the list of trust relationship.

关键词： Mobile ad hoc networks

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A study on video performance of Multipoint-to-Point video streaming with Multiple Description Coding over ad hoc networks

IEEJ Transactions on Electronics, Information and Systems

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IEEJ Transactions on Electronics, Information and Systems 2008年第9期128卷 1431-1437+5页

作者： Utsu, Keisuke Chow, Chee Onn Ishii, Hiroshi Course of Computer and Communications Graduate School of Engineering Tokai University 1117 Kitakaname Hiratsuka Kanagawa 259-1292 Japan Department of Electrical Engineering University of Malaya Lembah Pantai 50603 Kuala Lumpur Malaysia Professional Graduate School of Embedded Technology Tokai University 2-2-12 Takanawa Minato 108-0074 Japan

Supporting multimedia applications over wireless networks has become a very active research topic recently because video applications are prognosticated to receive high demand in future wireless networks, such as ad hoc networks. However, enabling video transmission over wireless ad hoc networks is more challenging than over other wireless networks due to the node mobility, interference and the lack of infrastructure. This paper addresses the problem of video transmission over ad hoc networks. We propose to combine Multiple Description Coding (MDC) with multiple source transport (Multipoint-to-Point transfer: MP2P) in order to maintain a smooth video streaming over wireless ad hoc networks. In this paper, we perform comprehensive simulation and test bed experiment in order to show the effect of the proposed MP2P video transfer with MDC for two description case on video streaming over wireless ad hoc networks. The results show that the proposed mechanism successfully improves the video transfer performance in terms of video packet reachability and throughput. © 2008 The Institute of Electrical Engineers of Japan.

关键词： Video streaming

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Information technology literacy for non-engineers

Information technology literacy for non-engineers

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2008 ASEE Annual Conference and Exposition

作者： Suchan, William Schwartz, Susan Sobiesk, Edward United States Military Academy Information Technology Core Program Department of Electrical Engineering and Computer Science United States Military Academy Information Technology Core Program Department of Electrical Engineering and Computer Science United States Military Academy Course IT305-Theory and Practice of Military IT Systems Department of Electrical Engineering and Computer Science United States Military Academy

No abstract available

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