이동 애드 혹 네트워크에서의 환경적응형 QoS AODV 라우팅 프로토콜에 관한 연구

裵振勝,宋東勳,吳世德,鄭燦赫,金玄郁,李光培,文泰洙,郭承郁,河載承 明知大學校 産業技術硏究所 2004 産業技術硏究所論文集 Vol.23 No.-

In this paper, we propose a bidirectional mobile Ad Hoc routing protocol based on AODV(ad-hoc on-demand distance vector routing) with QoS(quality of service) support. At presence, wireless mobile communication focuses on how to efficiently support mobility of users more than QoS guarantee. However, in order to satisfy requirement of various applications which have been or will be served, QoS guarantee between end points is a very important issue. The existing AODV routing protocol is implemented to use only BE (Best Effort) service. However, actual wireless mobile environment requires to reduce a waste of communication resources and meet with the real-time change of data paths by setting up routes with QoS support, considering available communication resources at each node in advance. Therefore, in this thesis, we propose an adaptive QoS support method using hello message in order to rapidly meet with the change of available communication resources and to smoothly perform route maintenance. For performance evaluation, we analyzed the average data reception rate. At that time, we used evaluation parameters such as node's mobility-stop time, hello message period, and packet priority, considering the node's mobility and the number of best effort/QoS data flows. As results, we found that with our proposed method the average data reception rate was increased 16.293%, 15.914%, 17.238% for 300 mobility-stop second case and 4.809%, 4.264%, 2.956% for 300 mobility-stop second case.

무선 애드 혹 기반 액티브네트워크상에서 QoS지원에 관한 연구

李基源,裵振勝,丁燦赫,金玄郁,李光培,姜景仁,朴京培,文泰洙,郭承郁,河載承 明知大學校 産業技術硏究所 2003 産業技術硏究所論文集 Vol.22 No.-

Abstract - In this thesis, we propose a QoS supporting method on wireless ad hoc-based active network for improving reliability. On the loss of route path, the existing DSR routing protocol has several problems with wireless network communication because of decease of data reception rate and increase of network load. The proposed method improves reliability of data transfer by using functions of active network. That is, by using functions of active nodes and active packets, the proposed method supports QoS with reservation transfer method that saves data packets on transfer at intermediate nodes with lost path and then re-transmit the packets after route reconfiguration.

경막 내 colistimethate 투여로 치료한 다제 내성 cinetobacter baumannii 뇌실염

홍유아,유진홍,김진진,모은영,안건희,정희경,김진석,이현정,정미향,윤승배 대한감염학회 2009 감염과 화학요법 Vol.41 No.4

Acinetobacter species is a non-fermentative aerobic gram-negative coccobacillus that is an important pathogen found in nosocomial infections. Recently, multi-drug resistant Acinetobacter baumannii (MDR-AB) infections have been increasing and pose a serious problem. Most such infections present as bacteremia, pneumonia, or a wound infection; however, CNS infections are very rare. We herein present a case of ventriculitis caused by MDR-AB in a 37-year old man after a neurosurgical intervention. The patient was successfully treated with intrathecal colistimethate.

한국 주요정신장애의 유병률 및 관련요인 : 2006 전국정신질환역학조사

조맹제,장성만,함봉진,정인원,배안,이영문,안준호,원승희,손정우,홍진표,배재남,이동우,조성진,박종익,이준영,김진영,전홍진,이해우 大韓神經精神醫學會 2009 신경정신의학 Vol.48 No.3

Objectives The aims of this study are to estimate the prevalence of the DSM-IV psychiatric disorders in the Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI), and to compare those with previous studies. Methods The Korean Epidemiologic Catchment Area study Replication (KECA-R) was Conducted between August 2006 and April 2007. The sampling of the subjects was carried out across 12 catchment areas. A multistage, cluster sampling design was adopted. The target Population included all eligible residents aged 181o 64 years. Face-to-face interviews were conducted with the Korean version of Composite International Diagnostic Interview (K-CIDI) based on the DSM-IV (N=6,510, response rate=81.7%). Results A total of 6,510 participants completed the interview. The lifetime and 12-month prevalence rates for all types of DSM-IV disorders were 30.0% and 17.3%, respectively. Those of Specific disorders were as follows : 1) alcohol use disorder, 16.2% and 5.6% ; 2) nicotine use disorder, 9.0% and 6.0% ; 3) specific phobia, 3.8% and 3.4% ; 4) major depressive disorder, 5.6% and 2.5% ; and 5) generalized anxiety disorder, 1.6% and 0.8%. Data relating to nicotine and alcohol use disorder revealed a very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among females than males. Conclusion The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in the distribution of psychiatric disorders across the country and times were observed.

실내 스모그 챔버의 설계 및 성능평가

배귀남,김민철,이승복,송기범,진현철,문길주 한국대기환경학회 2003 한국대기환경학회지 Vol.19 No.4

A multi-functional indoor smog chamber was designed and evaluated lo investigate photochenical or water vapor reaction mechanisms of air pollutants. Various smog chamber experiments could be conducted using ambient air or purified air in this smog chamber. The smog chamber consisted of a housing, a Teflon bag, blacklights, injection ports, sampling ports, and utility facilities. The characteristics of light source, the wall losses of air pollutants, and the quality of purified air were experimentally investigated. The maximum NO₂ photolysis rate was 1.10min^(-1). In a 2.5-m³ Teflon bag, the wall losses of ambient O₃, NO, and NO₂were 1.2~2.4×10^(-3)min^(-1), 0.7~2.0×10^(-3)min^(-1), and 0.4-2.0×10^(-3)min^(-1), respectively. The wall loss of ambient particles ranging 0.05 to 0.2㎛ was 1.8~5.4×10^(-3)min^(-1), which was slightly higher than those of ambient gaseous species. The purified air supply system provided high quality of air with NO₂, < 1 ppb, and total hydrocarbons <5 ppb.

심상 훈련이 남자 볼링 선수의 경쟁상태불안에 미치는 영향

배진희,현승권 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

Research aims at examining how image training has an impact on the performance of bowling players. To achieve this purpose, the study set up image training as an independent variable and competitive state anxiety that was the most important factor of performance and bowling performance as a dependent variable. This study conducted a survey of the present male junior bowlers belonging to Korea Bowling Congregation, selecting total 9 players. After that, image training program and physical training were performed simultaneously in the experimental group for nine months. Then, Competitive State Anxiety [nventory-2(CSAI-2) were measured and analyzed four times in 9 months. With the collected data, the research, to investigate the effects of image training on bowling players' performance, conducted one-way ANOVA and analyzed the results of using SPSS 10.0 program The significance level was verified at P<.05. The findings produced from the above process are summarized as follows: 1) Cognitive state anxiety, a subfactor of competitive state anxiety, tended to improve by decreasing according to the time period statistically, there was no significant difference. 2) Physical state anxiety that was a subfactor of competitive state anxiety showed a tendency to become better by dwindling with the [apse of time, while statistically there was no significant difference. 3) State self-confidence, one of the subfactors of competitive state anxiety, showed improvernent by the time period, and there was significant difference statistically. In conclusion, the results of performing the image training for 9 weeks showed that image training, on the whole, had a positive effect on competitive state anxiety.

물라이트로 부터 용융 알루미늄의 치환 반응에 의한 Al₂O₃-Al 복합체의 제조

배원태,김용진,김승제 慶尙大學校生産技術硏究所 1996 生産技術硏究所論文集 Vol.12 No.-

Al₂O₃-Al composites were produced by displacement reaction method, which was carried out by immersing the mullite preform which was prepared by cutting and polishing the commercial sintered mullite in molten aluminum. The change of physical and mechanical properties such as bulk density, porosity, water absorption, 4-point MOR, hardness, fracture toughness of Al₂O₃-Al composites with the variation of the reaction temperature and time were investigated. Microstructure and the phases of this composite were also investigated by SEM and XRD analysis. A1₂O₃-Al composites which was produced at 1000℃ for 24 hours showed porosity of 2.07%, water absorption of 0.35%, bulk density of 3.43g/cm3, 4-point MOR of 287.97MPa, hardness of 593.6kg/mm2 and ?? of 8.64MPa·??. The microstructure of this composites showed three dimensionally co-continuous of alumina which provides wear resistance and high stiffness and aluminum which acts as a toughening phase. The exact shape of the preform is retained and a net-shaped A1₂O₃-Al composite was produced.

슬관절 등속성 운동시 근골격 모델의 검증:실험 및 모의실험 연구 : 실험 및 모의실험 연구 An Experimental and Simulatio study

배태수,강성재,최경주,김신기,유재욱,진미령,문무성 대한정형외과연구학회 2003 대한정형외과연구학회지 Vol.6 No.2

사이버 윤리지표 개발에 관한 실증연구 : 한국, 미국, 인도의 차이를 중심으로

백승익,조남재,이인,강진우,김봉준 한국정보사회진흥원 2007 정보화정책 Vol.14 No.1

정보화 시대에서 인터넷이 주는 여러 장점이 존재하기는 하지만 그에 따른 비윤리적 행위에 대한 폐해도 점차 심각해지고 있기 때문에 사이버 상에서의 윤리지표가 필요한 시점이라 생각한다. 본 연구에서는 다음과 같은 두 가지 목적을 가지고 있다. 첫째, 사이버 공간에서 발생되는 범죄행위에 대한 문제인식을 바탕으로 본 연구에서 제시된 인터넷 사용자들의 윤리의식 지수(Self-Evaluation)를 스스로 측정해 볼 수 있는 표준화된 사이버 윤리 프레임워크를 개발하는 것이다. 둘째, 제시된 프레임워크의 타당성을 검증하기 위해 3개국(한국, 미국, 인도) 인터넷 사용자들을 대상으로 실증분석을 함으로써 각기 문화권이 다른 한국, 미국, 인도의 인터넷 사용자들의 윤리지수 차이를 문화적 관점에서 국가간 어떤 차이를 보이는지를 규명하는데 그 목적이 있다. 연구의 시사점으로는 국가별 전통문화의 차이 규명과 함께 행동의도를 분석하였다는 점과 인터넷 공간에서 사용자들이 윤리적인 부분에 있어 불안감이나 민감하게 느끼는 요인들을 분석하였다는 점에서 연구의 의의를 찾아볼 수 있다. The Internet-assisted communication transforms conventional information systems into vast human interactive networks, and offers people opportunities to experience new forms of social contacts, without any real social presence. Because of this anonymity of Internet users, they have a strong tendency to behave in an unrestricted manner. This experience is do stimulating, rewarding and reinforcing that ome user find it hard to know when to stop. These behaviors frequently go over the fun, and are developed into the crimes. To reduce these side-effects, various computer security solution and laws have been introduced. However, the most important factor in reducing the Internet side-effects is individual user’s ethics. This research proposes a Cyber Ethics Evaluation Model to measure the ethics of Internet users and compares cyber ethics of South Korea, U.S.A, and India by using the model. It conduct Confirmatory Factor Analysis (CFA) to test the validation of the model.

취약계층 권리보호에 관한 고려요소와 지향점 : 통합 지식관리시스템 구축을 중심으로

배유진,최승원 梨花女子大學校 法學硏究所 2017 法學論集 Vol.21 No.4

우리 공동체를 위한 좋은 복지를 위해서 취약계층의 권리보호 대한 촘촘한 정치망이 필요한 시점이다. 한편, 인터넷혁명 및 IT기술의 발달은 모든 제반영역에서 혁명을 이끌 수 있는 원동력이 되고 있다. 따라서, 여러 생활영역에서 취약계층의 낙오방지 시스템으로도 작용할 수 있는 수요자 중심의 통합 지식관리시스템의 구현이 중요하다. 본 연구는 취약계층의 실질적인 권리보호를 위하여 사각지대, 중복누수방지를 위 한 통합 지식관리시스템 구축을 위한 고려요소와 미래 지향점을 고찰하였다. 우선, 기존의 좁은 개념의 테두리를 벗어나 여러 생활영역에서의 취약계층에 대한 개념의 확대와 이에 따른 입법유형화 필요성을 제시하였다. 다음으로, 수요자 중심의 원스톱 통합서비스의 제공 및 사례관리화, 전자문서기반의 지식관리와 모든 주체가 참여할 수 있는 지식관리시스템의 중요성을 강조하였다. 그리고 시스템 구축 시 고려사항으로 기술적인 관점에서 모바일 중심의 표준화･구조화･자동화 등을 언급하였다. 한편, 권리실현을 위한 취약계층의 권리성 강화와 구제수단을 법적으로 살피면서, 개인 서비스를 위한 여러 법률에 흩어져 있는 취약계층의 내용을 수요자의 입장에서 통합법으로서의 제정필요성을 강조하였다. 큰 틀에서 취약계층 권리보호 통합법안은 여러 사회생활영역의 취약계층의 인권과 복지 및 권리 실현의 실효성･수월성을 확보하고, 통합 개인화 서비스를 통한 복지효율화를 도모하는 것을 주요 내 용으로 담아야 할 것임을 제시하였다. 궁극적으로 아직까지 취약계층의 권리보호가 미흡한 상황에서 수요자 중심의 법적･제도적･기술적･종합체계적인 정치망 지식관리시스템을 구축･고도화하여 취약계층의 보호시스템이 제대로 작동되는 것을 지향방향으로 제시하였다. It is a time that we need a tight political network to protect the rights of vulnerable groups for good welfare for our community. However, the Internet revolution and the development of IT technology are driving the revolution in all areas. Therefore, it is important to implement a consumer- centered integrated knowledge management system that can function as a fall prevention system for vulnerable classes in various living areas. This study examines the factors and future directions for building an integrated knowledge management system to prevent blind spots and duplicate leaks in order to protect the actual rights of vulnerable groups. First, it proposed the necessity of extending the concept of vulnerable groups in various living areas beyond the narrow boundaries of existing ones and to formulate legislation accordingly. Next, it emphasized the importance of the provision of one-stop integrated services and customer-centered case management, the knowledge management based on electronic documents, and the knowledge management system that can participate in all subjects. In addition, the mobile-centered standardization, structuring, and automation are mentioned from the technical point of view as a consideration in system construction. On the other hand, while looking for the means of strengthening the rights of vulnerable groups and realizing the right of remedies for the realization of rights, it emphasized the necessity of enacting contents of vulnerable groups scattered in various laws for personal service as an integrated law from the viewpoint of consumers. In a large frame, it proposed that the integrated legislation on the protection of the rights of the vulnerable class should contain the main contents such as securing the human rights, welfare and the realiztion of the rights of vulnerable groups in various social life areas along with promoting welfare efficienc through integrated personaliztion service. Ultimately, in the situation where the protection of the rights of the vulnerable groups is still insufficient, it suggested that the protection system of vulnerable groups should be operated properly by building and improving the client-centered legal, institutional, technical, and comprehensive systematic political network knowledge-based management system.