여행비용접근법[TCM]에 의한 관광효과 추정 : 대호농어촌관광휴양단지를 중심으로 Application for Daeho Rural Tourism & Leisure Complex

유영희,임재환,구승모 충남대학교 농업과학연구소 2004 농업과학연구 Vol.31 No.2

Since 1989, 9 major complex have been invested with government funds, for the purpose of developing agricultural tourism to increase agricultural income and job opportunity, as well as providing urban population leisure opportunity. However, systematic and comprehensive approaches were rarely done in analyzing its economic impacts. This study, therefore, focuses on analyzing tourism effect and its economic value and implication for a representative rural tourism site, "Daeho rural tourism complex". To analyze travel pattern, expenditure pattern, and degree of satisfaction from travel to Daeho complex, Travel Cost Method(TCM) was employed based on survey method. Results from linear model with statistical significance implies that tourism benefit for each visitor is 28,373 won and total annual benefit for the Daeho site is 7 billion won. Considering annual benefit stream, the present value of total benefits are 132.9 billion won and 70 billion won at 5% and 10% of discounting rate, respectively. Using the values of benefit estimated from this study and investment cost, B/C ratio, IRR, and NPV were calculated to be 1.01, 1.67 billion won, and 5.19% at 5% of discounting rate. These results could be directly compared with the previous analyses.

고독의 심리적 속성과 대처양상

구본용,김재환,이수원,장성수,류완영 漢陽大學校 學生生活硏究所 1990 大學生活硏究 Vol.8 No.-

문자패턴의 특징지도 추출을 위한 상대유사 경쟁학습 알고리즘

유영재,이진,장영학,김성환 木浦大學校 應用科學硏究院 2001 應用科學硏究誌 Vol.1 No.-

In this paper, we propose a new competitive learning algorithm for unsupervised learning neural network to extract a feature map from letter patterns. The proposed learning algorithm is based on relative similarity, which is similarity measure between input data and cluster group. So, the proposed network and algorithm is called relative similarity network (RSN) and learning algorithm. According to the definition of similarity and learning rule, the structure of RSN is designed and the pseudo code of the algorithm is described. In the extraction of a feature map. RSN, in spite of deletion of learning rate, resulted in the identical performance with those of WTA, and SOM. Thus, it is shown that RSN is useful to extract a feature map of letter patterns.

문자패턴의 특징지도 추출을 위한 상대유사 경쟁학습 알고리즘

유영재,이진,장영학,김성환 국립7개대학공동논문집간행위원회 2001 공업기술연구 Vol.1 No.-

In this paper, we propose a new competitive learning algorithm for unsupervised learning neural network to extract a feature map from letter patterns. The proposed learning algorithm is based on relative similarity, which is similarity measure between input data and cluster group. So, the proposed network and algorithm is called relative similarity network(RSN) and learning algorithm. According to the definition of similarity and learning rule, the structure of RSN is designed and the pseudo code of the algorithm is described. In the extraction of a feature map. RSN, in spite of deletion of learning rate, resulted in the identical performance with those of WTA, and SOM. Thus, it is shown that RSN is useful to extract a feature map of letter patterns.

안면부에 발생한 고정형 스포로트리쿰증 3례

최윤애,류영욱,정재봉,송준영,이규석 啓明大學校 醫科大學 1993 계명의대학술지 Vol.12 No.3

We experienced 3 cases of fixed type cutaneous sporotrichosis confined to the face. Case 1 was a 32-month old child, affected over the nose. Case 2 was a 25-year old man, affected over the left cheek. Case 3 was a 71-year old man, affected over the nose. Histopathologically, chronic granulomatous inflammation with pseudoepitheliomatous hyperplasia was observed. Mycologically, typical dark brown to black colored colonines with moist, wrinkled and membranous surfaces were cultured. All patients were completely cured by oral administration of saturated KI and itraconazole combined therapy in a short period(40-90 days).

구진상괴사성 결핵진 3례

손보성,송준영,정재봉,김병천,이상숙,류영욱,이규석 啓明大學校 醫科大學 1994 계명의대학술지 Vol.13 No.4

Papulonecrotic tuberculid is an eruption of necrotizing papules, particularly affecting the extremities and occurring in more or less symmetrical crops, and responding to antituberculosis therapy. Individual lesions heal with scarring. Histologically, vascular involvement is seen in early lesions. Late lesions are divided into two forms. In superficial forms, wedge shaped area of necrosis forms in epidermis and upper dermis. Epithelial and lymphoid cells gather around its periphery. In deep forms, with no epidermal change, granulomatous changes surrounded by well defined palisading histiocyte and lymphoid, epithelioid cells are seen. In mid-dermis and perivascular area, vessel shows vasculitis. In the first case, leukocytoclastic vasculitis and early granuloma formation were seen. In the second case, palisading granuloma formation was seen. In the third case, tuberculoid granuloma formation was seen. We report three cases of papulonecrotic tuberculid showing three different stages of histological finding, in individual cases.

교대제형태에 따른 지하철 남성 근로자들의 수면의 질과 관련요인

김민기,이원철,이영민,유재홍,김환철,유승원,남경한 大韓産業醫學會 2008 대한직업환경의학회지 Vol.20 No.4

배경 교번제 근무에 의해 지하철 근로자들의 수면의 질은 영향을 받고 있으나 기존 연구자체가 교번제를 행하는 지하철 기관사들만을 대상으로 하여 3교대 근로자 및 비교대 근무자의 수면의 질 점수와 수면장애군 분포의 차이를 비교할 수 없었고 수면에 영향을 끼치는 요인들을 파악할 수 없었다 이에 본 연구는 교번제와 3교대제 및 비 교대제 근로자들 간에 수면의 질의 차이가 있는지와 영향을 끼치는 요인들에 어떤 것들이 있는 지를 분석하기 위해 본 연구를 수행하였다 방법 2007년도 5월 초에 일개 지하철공사에 근무하는 모든 근로자를 대상으로 구조화된 설문지를 배포하였으며 2007년 5월말까지 회수되었다 회수된 설문지 중 수면의 질 평가설문지를 완벽히 기재하지 않은 70(6.93%)명과 그 수가 많지 않은 여성 근로자 36(3.56%)명을 제외한 759(75.15%)명의 남성 지하철근로자를 대상으로 설문분석을 시행하였다 자기기입식 설문지를 통하여 얻어진 자료를 SPSS (ver 12.0)프로그램을 사용하여 분석하였다 결과 교번제 근로자들이 직무요구와 직무불안정을 제외한 모든 직무스트레스점수 영역에서 가장 높은 점수를 차지하고 있으며 한국형직무스트레스 중앙값과의 비교에서도 교번제 근로자 중에서 직무스트레스 하부항목의 평균값 이상의 비율이 높았다 비교대 근무근로자들은 직무요구 직무불안정 항목에서 가장 높은 점수를 나타내었다 교대제에 따른 수면의 질 점수에서도 교번제 근로자들의 평균값이 5.1로 수면의 질 증상 점수인 5점을 넘고 있었으며 교대제에 따라 수면의 질 점수와 증상분포에 차이를 보였다 수면의 질은 직무요구가 높고 외적통제 신념이 강할수록 지난 1년간 아차사고를 경험하였거나 업무 중 사고를 경험하였을 때 나빠지며 비교대제 이거나 내적통제신념이 강할수록 좋아지는 결과를 보였다 결론 교번제에서 수면의 질 평균점수가 가장 높고 증상군의 비율도 가장 높았으며 직무스트레스의 대다수 항목에서 가장 높았다 지하철근로자들의 수면의 질 향상을 위해서는 교번제를 가급적 줄이는 교대제 체계의 개선 및 직무요구의 적절한 분배 내적통제신념 등의 향상과 사고 및 아차사고에 노출되는 교번제와 3교대 근로자들을 위한 사고 예방교육이 도움이 될 수 있을 것이다 Background The sleep quality of subway drivers who work in the dark underground with an rotating shift system is generally poor, which can degrade the quality of a worker's life This study examined the relationship between the sleep quality of subway worker and shift work by comparing three shift systems (rotating shift system, a three day shift system and no shift system). Method Questionnaires including The short form of the Korean Occupational Stress Scale (KOSS) Pittsburgh Sleep Questionnaire (PSQI), the worker's age gender job type, accident, near miss and shift system were given to a total of 1010 workers The results of 759 qualified questionnaires (75.15 %) were analyzed using the SPSS (ver 12.0) program. Result The highest level of job stress was found among those working a rotating shift system followed by three shift system and no-shift system. The mean sleep quality score in the rotating shift workers was 5.1 (SD±3.2), which was greater than the sleep symptom score (5) 34.8% of rotating shift workers suffered from sleep symptoms. The sleep quality score by shift-work was significantly different High job demand, strong external locus control, the experience of a near miss or an accident in the workplace during previous year has an adverse affect on the sleep quality The sleep quality improved in case of a change into a no-shift system or a strong internal locus control. Conclusion A rotating shift system is more harmful to the quality of sleep in subway workers than a 3 shift system or no-shift system. In addition, job stress, personality, near miss and the experience of an accident affect the sleep quality of subway workers.

적외선 센서를 이용한 청소로봇의 벽면추적 기법

정광식,노용준,임영철,유영재 경북대학교 센서기술연구소 2002 센서技術學術大會論文集 Vol.13 No.1

자기 센서를 이용한 자율주행 차량의 경로인식 시스템

김명준,김의선,손석준,오승열,류영재,임영철 경북대학교 센서기술연구소 2002 센서技術學術大會論文集 Vol.13 No.1

Simultaneous Determination of Amitraz, Bromopropylate, Coumaphos, Cymiazole and 2,4-Dimethylaniline in Korean Honey Samples by High-Performance Liquid Chromatography

Ryoo, Jae-Jeong,Kim, Se-Hoon,Jeong, Young-Han,Do, Hwan-Suk,Ryu, Jeong-Eun,Kwon, Hae-Young,Jeong, Ji-Yoon,Park, Hye-Jin,Lee, Soon-Ho,Hong, Moo-Ki,Hong, Jong-Ki Korean Chemical Society 2008 Bulletin of the Korean Chemical Society Vol.29 No.5

Simultaneous determination of amitraz, bromopropylate, coumaphos, cymiazole and 2,4-dimethylaniline in 200 honey samples purchased in Korea was performed by reversed-phase high-performance liquid chromatography with multiple UV detection. 2% Acetone in hexane was used for a liquid-liquid extraction and 20-40% water in acetonitrile solutions were used as mobile phases. The LOD for the analytes varied between 0.4 and 1.5 $\mu$g/L and the recoveries were yielded between 64 and 94%. Relative standard deviation of the repeatability of the method is less than 15%. Amitraz was not present in amount above 10 $\mu$ g/L and one for coumaphos and cymiazole and two for bromopropylate, and three for 2,4-dimethylanilne were detected in amount above 10 $\mu$ g/ L. Levels of the acaricide residues found were less than 50 $\mu$ g/L.