• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.10
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• pp.2646-2650
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• 2009

This paper describes an anti-ARM technique using multiple decoy antennas. We investigate the radar and decoy antenna signal received at the ARM receiver to verify the effect of decoy antennas. And we develop a simulation program using Matlab for optimum positions of the decoys and the effect of ARM by distance between decoys. We suggest optimum positions and distance between decoys based on our simulation results.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.4
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• pp.805-810
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• 2009

This paper present a characteristic of formant variation in order to discriminate between drinking and nondrinking condition. By simulation experiments based on monosyllable, it is shown that the higher formant in F1, F2 and F3 in drinking speech signals compared with nondrinking speech signals. And I knew that the formant is very effective at distinction of drinking condition and nondrinking condition.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.10
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• pp.2684-2690
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• 2009

The existing mobile learning service is the method that provides data packets in real time. It has some problems of much data packet cost and delay to provide the mobile learning service. In this paper, to solve the problems, we suggest to implementation of the mobile learning system of the new method using serial communication.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.10
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• pp.2557-2564
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• 2009

In this study, a muffler for the super heavy machinery in the 70 ton class is developed. Developing process relies on experimental and rule of thumb approach. Various muffler internal structures consisting of partition plates, perforated and non-perforated through pipes, and absorbent are tried and compared for the transmission loss performance. Based on the experimental results, the best combination and locations of the internal acoustic components which affects the muffler performance are determined.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.10
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• pp.2721-2727
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• 2009

This paper is construction on ontology_based mobile Customer Relationship Management system for efficient customer information management and analysis of medicine center. As using ontology technique, we support medicine service at grade according to quality and healthy of the customer based customer information. Proposed CRM system provides medical information and seminars to whom are necessity. For this, priority retrieval and similarity retrieval are able to be in the personnel order and the regional.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.2
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• pp.658-665
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• 2010

This study aims to analyze the early 19th century Jeolla-Gamsa's(全羅監司; the provincial governor of Jeolla-Do) utilization of governing institutions in Jeonju-Bu(全州府) focused on his duties and ritual ceremonies. Wanyeong-Ilrok("完營日錄") which is Jeolla-Gamsa's official diary written by Yu-Gu Seo(1764-1845) is closely investigated for that purpose. As a result, it is proved that some governing institutions are used differ from ritual regulations.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.2
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• pp.532-539
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• 2010

This paper suggests the system for searching and application is to be in combination between existing hair art area and Image/Video processing area. This proposed system usually saves various hair types into a database, then, users send images of their face over the internet by using WebCam. Finally, they can find the hair types for users.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.2
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• pp.644-650
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• 2010

In this paper, an experimental study is performed in order to determine the effects of interaction between vehicle and structure. For this purpose a wheel tracking machine and an adequate precast concrete deck single span bridge are designed. Results presented in the paper show that interaction between vehicle and structure produce additional effects on dynamic behavior of structure including reversal and contrary behavior.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.2
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• pp.570-575
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• 2010

This paper designed 3D animation in consideration of human characteristics to stimulate their interest and to be more understandable to them. It was also confirmed that, using the 3D animation contents, general people came to recognize the problem of environment pollution and developed desirable attitude and behavior for protecting the environment. Furthermore, this paper suggested the direction of systematic environmental education and other general people education institutions using the developed 3D animation contents as a teaching material.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.4
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• pp.1260-1265
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• 2010

IPSec is the security protocol that do encryption and authentication service to IP messages on network layer of the internet. This paper presents the key recovery mechanism that is applied to IKEv2 of IPSec for mobile communication environments. It results to have compatibility with IPSec and IKEv2, reduce network overhead, and perform key recovery without depending on key escrew agencies or authorized party.