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김규한,김완숙,Kim, Kyu Han,Kim, Wan Sook 대한자원환경지질학회 1994 자원환경지질 Vol.27 No.6
Drainage patterns were investigated to interpret the unknown geologic structure and geomorphic history in South Korea. Dendritic and rectangular patterns are most prominent ones developed in the granitic and sedimentary terrain. Drainage density ranges from 0.47 in the Nakdong river basin to 0.31 in the South Han river basin. Fine drainge texture is appeared in the Nakdong basin characterized by sedimentary beds of Mesozoic age, and coarse one are in the South Han river basin where Precambrian metamorphic rocks are dominated. Geological structures interpreted by stream pattern analysis are reasonally good agreement with the result by lineaments analysis and geological mapping.
아토피피부염에서 진드기 항원에 대한 말초 혈액 단핵구 세포 증식 반응과 피부의 즉시형 과민반응의 상관관계
김규한(Kyu Han Kim),방형돈(Hyeong Don Bang),정진호(Jin Ho Chung),박경찬(Kyoung Chan Park) 대한피부과학회 1995 대한피부과학회지 Vol.33 No.2
Background : House dust mites have been reported to play an aportant role in the pathogenesis of atopic dermatitis(AD). In fact a high positive rate for house dust mites in the skin prick test was observed in patients of AD. However, it is quite difficult to determine the clinical relevance of positive immediate hypersensitivity to mite antigen by clarical history alone because AD patients are nearly always exposed to these antigens in their daily lives. Objective : The aim of this study was to elucidate the clinical. singficance of a positive immediate hypersensitivity reaction by observing the proliferative respons of peripheral blood mononuclear cells(PBMC) to mite antigen in the AD. Methods : The proliferative response of PBMC separated from Dermatopkagoides farinae(Df) positive AD patients to Df antigen was compared with that from Df negative normal controls, Df positive normal controls and Df negative AD patients. Results : PBMC from Df positive AD patients showed signinc not proliferation in response to Df antigen evaluated by comparing stimulation indices(SI) among different experiment groups. Conclusion : Significant correlation between responses of PBMC and immediate hypersensitivity of skin to Df antigen in AD was found, and it was suggested the Df may be a real aggravating factor in the Df positiv AD patients. SI may be used as ar objective criteria to select patients for hyposensitization therapy after doing a skin test. (Kor J Dermatol 1995;33(2): 232-239)
보안관제 효율성 제고를 위한 실증적 분석 기반 보안이벤트 자동검증 방법
김규일(Kyu-il Kim),박학수(Hark-soo Park),최지연(Ji-yeon Choi),고상준(Sang-jun Ko),송중석(Jung-suk Song) 한국정보보호학회 2014 정보보호학회논문지 Vol.24 No.3
국내 사이버공격 대응 전담조직(CERT)들은 탐지패턴 기반의 보안장비(IDS, TMS 등)를 활용하여 사이버 침해공격에 대한 탐지·대응을 수행하고 있다. 특히, 공공?연구기관의 경우 국가정보원(NIS) 내 국가사이버안전센터(NCSC)를 중심으로 30여개의 부문 보안관제 센터가 구축?운영되고 있으며, 주로 침해위협수집시스템(TMS)을 활용하여 사이버 공격에 대한 탐지?분석?대응을 수행하고 있다. 그러나 현재의 보안관제 체계에서는 대량의 보안이벤트가 보안장비에의해 발생되고 있을 뿐만 아니라, 보안관제 요원이 보안이벤트에 대한 실제 공격여부를 판단하기 위해서는 추가적인 분석 작업을 수행해야 하므로 보안이벤트 전체에 대한 대응이 현실적으로 불가능한 실정이다. 또한 현재의 보안관제 업무는 보안관제 요원이 보유한 전문지식 및 경험에만 전적으로 의존하고 있기 때문에 특정 보안이벤트에만 분석이 집중되는 업무편중 현상이 발생하며, 이로 인해 기존에 알려지지 않은 새로운 해킹 공격기술에 대한 대응능력이 부족하다. 따라서 본 논문은 실시간 보안관제 및 침해대응 활동의 효율성을 극대화하고 대규모 해킹공격에 대한 조기대응 역량을 강화하기 위해 실제 해킹공격에 대한 실증적 분석에 기반한 대용량 보안이벤트 자동검증 방법을 제안한다. Domestic CERTs are carrying out monitoring and response against cyber attacks using security devices(e.g., IDS, TMS, etc) based on signatures. Particularly, in case of public and research institutes, about 30 security monitoring and response centers are being operated under National Cyber Security Center(NCSC) of National Intelligence Service(NIS). They are mainly using Threat Management System(TMS) for providing security monitoring and response service. Since TMS raises a large amount of security events and most of them are not related to real cyber attacks, security analyst who carries out the security monitoring and response suffers from analyzing all the TMS events and finding out real cyber attacks from them. Also, since the security monitoring and response tasks depend on security analyst"s know-how, there is a fatal problem in that they tend to focus on analyzing specific security events, so that it is unable to analyze and respond unknown cyber attacks. Therefore, we propose automated verification method of security events based on their empirical analysis to improve performance of security monitoring and response.
김규한 ( Kyu Han Kim ),조광현 ( Kwang Hyun Cho ),정진호 ( Jin Ho Chung ),박경찬 ( Kyoung Chan Park ),은희철 ( Hee Chul Eun ),윤상웅 ( Sang Woong Youn ),박경찬 ( Kyoung Chan Park ),김규한 ( Kyu Han Kim ),조광현 ( Kwang Hyun Cho 대한피부과학회 1995 대한피부과학회지 Vol.33 No.6
Background : Neurofibiomat,osis type 1(NF-1) is a multisystemic disorder of genetic ori gin, affecting one in every 3000 to 4000 people. It is clinically important in the aspect of dermatology, pediatrics, orthopedic surgery, neurology, neurosurgery and ophthalmology. Objective : The purpore of this study was to elucidate the clinical characteristics of NF-1 in Korean people. Methods : We carried out a retrospective study on 112 patients which were compatible to the diagnostic criteria of Riccardi and Neurofibromatosis Conference Statement. The results were compared with other western studies. Results : The age of onset, sex ratio, family history of neurofibromatosis, and clinica features of cafe-au-lait spot, neurofibroma, and axillary freckinings did not differed from western countries. However, some characterist,ics of NF 1(e.g. Lisch nodule) were not as sessed in the most of the cases and incomplete evaluations of the systemic diseases wen found. Conclusion : In this study t.he clinial features of NF-1 did not differ from western coun tries in many aspects. A more intensive evaluation of patient,s status is needed to manag; NF-1 patients appropritely. (Kor J Dermatol 1995;33(6): 1091-1098)