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장승호(Chang Seung Ho),유근수(Yoo Keun Su),한창우(Han Chang Woo),이영수(Lee Young Soo) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
Locking sheet is to display the contents of interlocking equipment for safe train drive in stations. It is being used as a basic information for interlocking equipment and for route control condition and the discussion for train operation between related parties. In spite of importance of this, there was no other way except depending on the work by hands from each stage(drawing, examination, discussion, approval) due to non-existing any tool. It is written it takes 30days from drawing to approval by procedures. However, it is required over the days in real time due to argument of each party. Furthermore on drawing of locking sheet, special conditions applied in accordance with situations of each station occasionally are different depending on the person in charge. Therefore, it is urgent to make up Logic Tree to accept special conditions of all stations. Automation Program for Drawing and Examination of Locking Sheet is to improve inefficient interlocking operation which was operated by hands in accordance with custom as automated system. The target of this program is to minimize the processing time and potential errors by personal work and set up standards for Logic Tree of special condition.
장승호(Chang Seung-Ho),안광열(An Gang Yell),이동균(Lee Dong-Gyuen),이주(Lee Ju) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
본 논문은 고속철도의 열차진로제어를 수행하는 전자연동장치를 대상으로 전기전자 프로그래머블 제어기의 안전기준인 IEC 61508 SIL(Safety Integrity Level)을 적용하기 위한 방법을 연구한다. SIL의 정의는 안전관련 기능의 무결성 수준으로써 안전과 무관한 Level 0에서 안전필수기능인 Level 4로 구분된다. 본 논문에서는 고속철도에 적용될 전자연동장치에 대하여, SIL을 적용하기 위해 철도사고를 열차충돌 및 탈선으로 정의한 후, 예비위험원분석(PHA)을 통해 위험원별 안전기능 및 SIL을 할당한다. 또한 기능별로 할당된 SIL을 만족하기 위해 IEC 61508에서 요구하는 위험측고장발생빈도, 결함허용구조, 소프트웨어 무결성, 안전기능시험을 만족하기 위한 방안을 제시한다. In this paper, with the electronic interlocking system which conducts train route control, we study the method for applying IEC 61508 SIL(Safety Integrity Level), which is a safety criteria of electrical and electronic programmable controller. As an integrity level of safety relevant functions, the definition for SIL is identified from safety-unrelated Level 0 to safety-critical Level 4. In this paper, Regarding electronic interlocking system which will be applied to high speed line, We define train accidents as train collision and derailment in order to apply SIL, and then we allocate hazard-specific safety function and SIL by way of PHA(Preliminary Hazard Analysis). We also propose the scheme to satisfy frequency of Danger Side Failure, fault-tolerant architecture, software integrity, safety function test.
장승호(Seung Ho Chang),윤재일(Jai Il Youn),이유신(Yoo Shin Lee) 대한피부과학회 1991 대한피부과학회지 Vol.29 No.2
Generalized lipodyst,rophy is characterized by generalized loss of body fat, and is asociated vith metabolic ahnormalities, including insulin resistance, hyperglycemia., and hypertriglyceridemia. like acanthosis nigricans, generalized lipodystrophy is a cutaneous marker of insulin re.istant diabetes. We report. herein a twenty year old female witti both classic generalized lipodystripin and acanthosis nigricans, in association with insulin resistant diabetes. (Kar J Dermatol 29(2):241 246)
장승호(Seung Ho Chang),윤태영(Tae Young Yoon) 대한피부과학회 1993 대한피부과학회지 Vol.31 No.4
Hydroa Vacciniforme is a rare, chronic, photosensitivity disorder witli onset in childhood that is characterized by recurrent, discrete vesiculation, necrosis and vacciniform scarring limited to sun exposed skin. We report a case of hydroa vacciniforme associated with ocular inwlvment in which vesicles could be induced only with single MED exposure to UVA. (Kor J Dermatol 19t3;31(4):612-615)
Chang, Seung Ho(장승호),Lee, Yun Soo(이윤수) 한국웰니스학회 2016 한국웰니스학회지 Vol.11 No.4
본 연구는 신체 활동 (Physical Activity) 및 건강 관련 체력 (Health-Related Fitness)에 관한 체육 관련 학과 및 학부 재학생의 지식을 조사하였다. 총 200명의 학생이 연구에 참여하였으며 본 연구를 위해 한국어로 번역된 신체활동 및 건강 관련 체력 지식 검사지 (APAHRF, Santiago, Morales, Disch, & Gaus, 2011)가 사용되었다. 기술 통계 결과, 연구 참여자의 평균 백분율 점수는 47.5%였으며, 성별에 따른 신체활동 및 건강 관련 체력지식 점수는 유의한 차이를 나타내지 않았다 (F (1,198) = 0.20, P = 0.652). 하지만 학년에 따른 연구 참여자의 신체활동 및 건강 관련 체력지식 점수에서는 유의한 차이가 있는 것으로 나타났다 (F (3,196) = 4.27, P = .006). 본 연구의 결과를 토대로 살펴보면 체육관련 학과 및 학부에서는 학생들의 신체활동 및 건강 관련 체력 지식과 관련된 교과목의 재평가 및 이와 관련된 신규교과목의 개설의 필요성이 사료된다. The purpose of this study was to investigate undergraduate kinesiology students’ content knowledge of physical activity (PA) and health-related fitness (HRF). Participants (N=200) were 100 female and 100 male students (Mean = 22, SD = 2.01) from three kinesiology programs in Korea. All participants completed the Korean version of the Appropriate Physical Activity and Health-Related Fitness (APAHRF) knowledge test. Descriptive statistics results indicated that the mean percentage score for the test was 47.5%. Results from One-way ANOVA indicated no significant (F(1,198) = 0.20, p =.652) difference for gender. However, the academic years of students were found to significantly influence content knowledge of PA and HRF (F(3,196) = 4.27, p = .006). These findings suggest that kinesiology programs should reevaluate their content courses emphasizing PA and HRF and pedagogical strategies related to teaching PA and HRF.
장승호(Seung Ho Chang),은희철(Hee Chul Eun),이애영(Ai Young Lee),표형찬(Hyung Chan Pyo) 대한피부과학회 1992 대한피부과학회지 Vol.30 No.1
Clothing dermatitis frequently goes unrecognized either becaue he clinical picture is mistaken for other disorders, such as seborrheic dermatitis, and prurius, or beacuse it is difficult to trace the causal agent. Contact dermatitis to disperse dyes, especially to azo dyes, has been well known and the most frequent sources of sensitization to dyes are dresses, stockings, and trousers made of synthetic fabrics We described a case of hat band contact dermatitis due to disperse dyes, proven by a patch test. Although chrome was not proven by the diphenylcirbizide method, many dyes known to be contact allergens were proved in different kinds of hat bands. (Kor J Dermatol 1992; 30(1): 103-108)
장승호(Seung Ho Chang),윤태영(Tae Young Yoon) 대한피부과학회 1994 대한피부과학회지 Vol.32 No.3
Down syndrome is the most, well known autosomal trisomy and e large number of abnormal skin features have been reported to occur in patients with Down syndromir. including syringoma. Syringomas occur with increased frequency in patients with Down syringoma, usually limited to the region around the eyes. but few cases of eruptive syringoma with Down syndrome have been reported. We reported the case of familial eruptive syringoma in a 13 years old patient with Down syndrome. (Kor J Dermatol 1984; 32(3): 532-536)
장승호 ( Seung Ho Chang ),이태완 ( Tai Wan Lee ) 대한피부과학회 1996 대한피부과학회지 Vol.34 No.1
Background: Soaps are the most widely used body cleanser and sometimes cause irritation of the skin. Objective : Our purpose was to compare the skin irritancy of 6 soaps using noninvasive techniques. Methods : The skin responses to patch test with 6 soaps were measured by visual scoring, evaporimeter and corneometer. Results : The results are summarized as follows. 1. F soap was shown to cause the least irritancy measured by visual scoring and corneometer. But using evaporimeter, there were no differences in irritancy between the 6 soaps. 2. Through correlation analysis, we found that the evaluation of the evaporimeter was closely related to visual measurement. Conclusion : Soap irritancy can be measured by noninvasive techniques, such as the evaporimeter, corneometer, laser doppler flowmetry and visual scoring. Further study of evaluation after short and repeat contacts with soap are needed. (Kor J Dermatol 1996;34(1): 116-121)