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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)
HMB - 45 단세포군 항체와 S - 100 단백질에 대한 항체를 이용한 악성 흑색종의 면역조직화학 염색
김규한(Kyu Han Kim),조광현(Kwang Hyun Cho),함의근(Eui Keun Ham) 대한피부과학회 1990 大韓皮膚科學會誌 Vol.28 No.6
We evaluated the characteristics of HMB-45 monoclonal antibody(MoAb) and compared it with a polyclonal anti-S-100 antibody in immunohistochemical staining of 22 primary melanomas of the skin ; 13 acral lentiginous melanomas(ALM), 3 superficial spreading melanomas(SSM), 4 lentigo maligna melanomas(LMM), 3 nodular melanomas(NMM). All speimens were formalin-fixed and paraffin-embedded, and were studied with the avidin-biotin-peroxidase complex technique. The results can be summarized as follows : l. In all tissue specimens, all or some of the melanoma cells in the dermis reacted with HMB-45 MoAb and anti-S-100 protein. 2. HMB-45 MoAb is more sensitive in detecting malignant melanoma cell heterogeneity t,han anti-S-100 protein. 3. Melanoma cells within the epidermis in 6 of 12 ALMs and 3 of 4 LMMs did not react with anti-S-100 antibody, whereas most melanoma cells within epidermis of 12 ALMs and 4 LMMs reacted with HMB-45 monoclonal antibody. These results indicated that immunohistochemical staining with HMB-45 MoAb and anti-S-100 protein is very useful in the study of biologic behavior of malignant, melanoma. (Kor J Dermatol 28(6):730 736, 1990)
韓國 太白山地域 에 分布하는 古生代 石灰巖 의 炭素 와 酸素同位元素 에 關한 硏究
Kyu Han Kim(金奎漢) 대한자원환경지질학회 1980 자원환경지질 Vol.13 No.1
δ¹³C and δ¹⁸O values were determined for the Paleozoic limestones (Great Linestone Series) from the Taebaegsan region and the age-unknown limestones (Janggun Formation) from the Janggun mine, Korea. Limestones of the Great Limestone Series exhibit a range of carbon isotopic composition from -4.5 +1.3‰ with a mean δ¹³C value of -1.1‰, relative to the PDB standard, and of oxygen isotpic composition from +8.8 to +23.3‰ with a mean δ¹⁸O value of +16.0‰, relative to the SMOW, falling into the normal marine limestone range according to Keith and Weber (1964), and Degens and Epstein(1964). Carbon isotopic composition of limestones of the Great Limestone Series becomes progressively lighter from Pungchon limestone of middle Cambrian age to mid-Ordovician Maggol limestone, possibly due to change in depositional environment in the Taebaegsan basin. Variation in isotopic composition of limestones from Hwajeol to Dumugal formation offers the possibility or deposition in shallow sea environment, in which fresh waters were added in several stages. Janggun limestone of unknown age may be corelated with the Paleozoic limestones of Great Limestone Series as infered from the istopic composition ranging from -2.8 to + 0.7‰ of δ¹³C and +13.4 to +22.4‰ of δ¹⁸O.
유비쿼터스 환경을 위한 Context RBAC/MAC Model
김규일 ( Kyu-il Kim ),황현식 ( Hyun-sik Hwang ),고혁진 ( Hyuk-jin Ko ),신준 ( Jun Shin ),김응모 ( Ung-mo Kim ),이혜경 ( Hae-kyung Lee ) 한국정보처리학회 2006 한국정보처리학회 학술대회논문집 Vol.13 No.1
유비쿼터스 환경은 네트워크로 상호 연결된 디바이스들이 사용자의 상황을 인식하여 언제, 어디서나 사용자가 원하는 정보를 자동적으로 제공할 수 있는 환경을 말한다. 그러나 유비쿼터스 컴퓨팅 환경에서 시,공간의 제약 없이 정보에 접근할 수 있다는 것은 다른 환경에서보다 더 많은 보안 기술이 요구된다. 따라서 본 연구에서는 유비쿼터스 기반 하에서 개인 정보에 대해 기밀성과 무결성을 유지하면서 사용자가 원하는 정보를 자동적으로 인식할 수 있는 접근방법을 제안한다. 제안방법은 기존 RBAC에 서 확장한 Context Roles를 정의하여 접근을 통제하였고 복수 정책(Multi-Policy)으로 개인 정보 및 역할 데이터 Object에 대해 제약을 두어 데이터 접근 시 상황정보에 따라 보안 등급을 지정하여 역할 정보에 대한 유출을 막는데 목적을 두었다.
김규한(Kyu-Han Kim),심규태(Kyu-Tae Shim) 한국해안해양공학회 2016 한국해안해양공학회 논문집 Vol.28 No.6
비교적 수심이 낮은 해안에 설치되는 소형어항 및 해안구조물 등은 연안흐름을 방해하여 표사이동의 평형상태를 붕괴시킬 수 있으며 구조물에 의한 회절파의 영향으로 파랑이 집중되어 국소적인 해안침식을 유발시킬 가능성이 크다. 이와 같은 해안침식을 제어하기 위한 대책으로는 다양한 저감공법이 제안되어 이용되고 있으나 이안제, 돌제 및 헤드랜드 등의 공법은 침식제어에 대한 직접적인 효과는 우수할 수도 있으나 해수면위로 구조물이 드러나기 때문에 경관이 우수한 해수욕장에서는 경관을 해치게 되어 적용하기 어려운 측면이 있다. 해안관광을 우선시하는 지역에서는 바다조망권을 훼손시키지 않고 2차적인 환경영향을 최소화 시키고자 하는 목적으로 광폭의 잠제인 인공리프를 채택하는 사례가 증가하고 있다. 한편 인공리프를 설치하고자 할 경우에는 인공리프의 길이와 인공리프 사이의 개구폭 및 해안선으로부터의 이안거리를 어떻게 결정하는지가 중요하다. 그러나 이러한 인공리프의 중요설계요소들에 대한 명확한 설계기준은 확립되어 있지 않다. 본 연구에서는 다양한 종류의 수리모형실험을 수행하고 인공리프 주변에서 발생되는 파랑 및 흐름장의 변화를 PIV기법 등을 이용한 정밀측정 및 해석을 수행하여 인공리프 길이와 이안거리 및 개구폭에 대한 기준을 제시하고자 하였다. Small fishing ports and coastal structures installed in a relatively low sea water depth disturb the wave induced current and cause the collapse of equilibrium state of sediment transport. These structures creates diffracted waves and matter the concentration of waves to cause the beach erosion. In order to mitigate these eroding problems on the beach, many counter measurements were proposed such as detached breakwater, groin or headland; however, these methods interrupt the aesthetic view of sandy beach due to the exposed structures above the sea level and have difficulty of applying to those beaches with the good scenery. Furthermore, some of these methods create secondary environmental problems after the installations. To eliminate these problems, one of the countermeasures, artificial reefs have been selected and used worldwide to minimize the disturbance of the scenery and secondary effects on the environment. Meanwhile, it is important to set the design elements for installing the artificial reefs such as that of length, opening width, clearing distances from the shoreline and more. Nevertheless, there are no construction manuals or standards for designing the artificial reefs with these important design elements yet. In this study, different conditions of artificial reefs were used with various cases throughout hydraulic model test to precisely analyze the changes of waves and currents to propose the standards of design elements to install the artificial reefs.
데이터마이닝 기법을 이용한 신경망 기반의 화력발전소 보일러 튜브 누설 고장 진단에 관한 연구
김규한(Kyu-Han Kim),박준호(June-Ho Park),이흥석(Heung-Seok Lee),정희명(Hee-Myung Jeong),김형수(Hyung-Su Kim) 대한전기학회 2017 전기학회논문지 Vol.66 No.10
In this paper, we propose a fault detection model based on multi-layer neural network using data mining technique for faults due to boiler tube leakage in a thermal power plant. Major measurement data related to faults are analyzed using statistical methods. Based on the analysis results, the number of input data of the proposed fault detection model is simplified. Then, each input data is clustering with normal data and fault data by applying K-Means algorithm, which is one of the data mining techniques. fault data were trained by the neural network and tested fault detection for boiler tube leakage fault.