한우법인의 사업유형별 경영분석

이상영,천동원,한원식 한국농업정책학회, 한국축산경영학회 2001 농업경영정책연구 Vol.28 No.3

According to the analysis results on Korean cattle cooperatives, it is considered that the conditions of members' welfare, payment and education were poor because of short establishment period and unexpected financial crisis. However, the representative's farm management ability and planning was well prepared. Viewing the components of investment in the cooperative, while the proportion of investment in kind was getting bigger, investment in cash and in kind were increased by 28.6% and 78.2%, respectively compared with the beginning stage. Most of the investment in kind was destined to land and facilities. Per capita investment was increased by 11.6million won from 21.3million won at the beginning to 32.9million won. The component ratios of fixed capital such as facility and equipment were composed of 36.4% of subsidy, 43.1% of loan and 20.5% of self-support. Results of the economic analysis on the cooperatives by farming system identified that the highest profitability and productivity were achieved by Type II on increasing value-added followed by Type I of concentrating on hanwoo production, Type III on selling input and Type IV on saving input. Investment analysis based on the amount of allowable investment limit also shows that all farming systems except Type II invested over an appropriate level. Most influential factors affecting cooperative's profitability were record keeping and selling type. The effects of the cooperatives' operating system and subsidy on profitability were statistically insignificant.

한국판 소아 양극성장애 설문지 2.0(Child Bipolar Questionnaire 2.0)의 신뢰도 및 타당도 연구

천근아,신동원,김보라,소윤섭,전진용,송동호 大韓神經精神醫學會 2008 신경정신의학 Vol.47 No.3

Objectives : The Child Bipolar Questionnaire 2.0 (CBQ 2.0) is a rapid screener with a Core Index subscale of symptom dimensions frequently reported in childhood-onset bipolar disorder (BD) and scoring algorithms for DSM-Ⅳ BD, with and without ADHD, and the proposed Narrow, Broad, and Core phenotypes. This report provides preliminary data on the reliability and validity of the CBQ 2.0-Korean version. Methods : Core Index subscale to effectively predict diagnostic classification by structured interview was assessed using the Kiddie-Schedule for Affective Disorders and Schizophrenia-Present and Lifetime Version-Korean Version (K-SADS-PL-K). Test-retest and inter-rater reliabilities of the CBQ 2.0 were assessed. Correlation of Korean Child Behavior Checklist (K-CBCL) with CBQ 2.0-Korean version was performed. Results : The CBQ 2.0 screening algorithms performed with a specificity of 66.7% and a sensitivity of 94.7% in classifying subjects with K-SADS-PL-K diagnosis of BD vs. no BD. The Core Index subscale had “good” agreement with K-SADS-PL-K diagnosis (Kappa=0.676) in identifying BD, ADHD-only, and no diagnosis. Conclusion : This preliminary data is from a sample derived from the child and adolescent psychiatric clinics, further validation is needed with community based samples in which childhood-onset BD is rarer and diagnoses more diverse. The CBQ 2.0-Korean version shows potential for rapid and economically feasible identification of possible childhood-onset BD cases as defined by DSM-Ⅳ criteria as well as by alternate disease phenotypes.

중국 프로축구 지도자의 지도성향과 리더십 행동 유형에 관한 연구

강동원,이천식,이정학 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

The purpose of this study was to study of the teaching trend and leadership type of the prfessional soccer leaders of China. Regarding the questionnaire, the study of based on the leadership scale for sports (LSS) developed by Chelladurai arid Saleh(1980), was translated and restructured suitable to the purpose of this study. In summary, positive behaviors impacted the goal-oriented type of leadership most in terms of leadership type, and authoritative behavior and democratic behavior impacted less. The training and direction behavior element was the most influential to the morale enhancing type of leadership. Especially, the authoritative behavior element was shown to be negatively influential. The democratic behavior factor was the most influential to the reliability-oriented type of leadership. The positive behavior element impacted less. However, the training and directive behavior and authoritative behavior element did not influence.

한국인 인슐린비의존형 당뇨병환자에서 엔지오텐신 1-전환효소 유전자의 다형성과 당뇨병성 만성합병증 및 관상동맥질환과의 관계

정민영,천남일,이창훈,조동혁,강호철,정동진,정명호,강정채,박종태,양승원 全南大醫大 2001 전남의대학술지 Vol.37 No.3

뉴질랜드 낙농업의 구조변화 분석

곽영태,박민수,천동원 한국국제농업개발학회 2004 韓國國際農業開發學會誌 Vol.16 No.4

뉴질랜드의 낙농업은 온화한 기후, 연중 고른 강수량, 넓은 면적의 초지 및 외부로부터 격리된 지리적 여건 등 천혜의 자연적 환경으로 인하여 일찍부터 국가 기간산업으로 발달되어 왔다. 또한 1984년부터 실시된 경제개혁의 결과 지금은 세계 유제품 시장의 약 31%를 차지하는 낙농 강국으로 성장 하였으며, 최근 10년간(1993년~2002년)뉴질랜드 낙농업의 구조변화를 요약하면 다음과 같다. 1. 군수는 5.6%나 감소하여 규모화가 진행되고 있으며, 반면 사육두수는 4.2%, 평균 군 규모는 50.6%, 목장 평균면적은 39.2% 각각 증가하였다. 또한 호당 초지 면적이 2001/02년도 현재 103 ㏊, 호당 사육규모는 271두로 초지에 바탕을 둔 방목위주 사육으로 저비용 고품질의 우유를 생산하고 있다. 2. 노동 집약적인 낙농업에 종사하면서도 여유로운 생활을 즐기기 위해 자가 운영형태에서 분배 착유형태로의 운영구조 전환이 서서히 이루어지고 있는 것으로 나타나고 있다. 3. 사육규모별로 볼 때 200두 미만의 군수가 급격히 감소 추세에 있으며, 상대적으로 300두 이상의 군수가 증가 추세에 있다. 특히, 500두 이상 규모의 확대가 빠르게 진행되고 있다 4. 매년 생산된 유제품의 90% 이상을 세계시장으로 수출하는 수출형 낙농으로 확고한 기반을 확립하고 있다. 5. 조수입의 증가율이 133%로 나타난 반면 경영비 증가율은 94%에 불과하여 소득 증가율이 232%로 높게 나타났다. 6. 뉴질랜드 낙농농가의 자본구조는 매우 양호한 상태로 나타나고 있다. 즉 2001/02년 현재 자기 자본비율 67%, 부채비율 50%로 나타나 국제경쟁력 강화에 긍정적인 요소로 작용하고 있다. 특징적인 면은 고정자산에 투자된 비율이 높은 것으로 나타났다. 따라서 위의 결과를 통해서 볼 때, 우리나라의 낙농업이 초지부족에 따른 방목위주로의 전환이 어려운 현실임을 감안하더라도 기존 초지의 철저한 활용, 답리작 사료작물 재배 및 임간초지의 개발 등으로 조사료 급여 비율을 높임으로써 농후 사료비를 절감 할 수 있는 방안을 강구하여야 할 것이다. 아울러 생산비 절감을 위한 규모 확대 방안을 적극적으로 마련해야만 국제경쟁력을 가질 것으로 판단된다. The objectives of this study are to analyze the structural change of New Zealand dairy industry for the last ten years and to make a few suggestions to strengthen the competitive power of Korean dairy industry. The main results are as follows; First, there were big changes in dairy herd size, dairy cattle number and dairy farm size. Second, in operating structure, the ratio of sharemilkers was increasing, on the other hand, the ratio of owner-operators was decreasing, Third, in herd size, herds below 200 heads were decreasing, herds over 300 heads were increasing. Fourth, dairy industry focuses on export, annually over 90% of milk products produced was exported. Fifth, farm revenue increased by 133%, operating cost increased by 94%, farm profit increased by 232% for the last ten years. Sixth, in capital structure, owner's equity ratio was 67%, debt ratio was 50% in 2001/02, on the other hand, ratio of investment in fixed assets was high. As a result, this study suggests that Korean dairy industry has to enlarge grass-land as much as possible to reduce a production cost, also it has to strengthen a competitive power with enlargement in farm size.

모 중장비 제조 사업장의 유해작업요인 평가에 관한 연구

장성훈,이원진,서창호,김종규,이영신,황천현,서동윤 건국대학교 의과학연구소 1996 건국의과학학술지 Vol.6 No.-

We evaluated the types and the amount of hazards in a heavy equipment factory and a plant factory to improve workers' health and to determine the priority in occupational health programs. We first inspected the working processes to find hazardous agents, measured them in each process environment, and compare the results with their TLVs(Threshold Level Value). This study was carried out from December 26, 1995 to January 30, 1996. The results are as follows: 1. In two factories, we identified the following hazardous agents: noise, dust, heavy metal fume, organic solvents, illumination, gases and ultraviolet light. 2. In the heavy equipment factory, some agents were over their TLVs in the following departments. 1) Preparation Department: dust, Pb, Mn, Fe₂O₃, NO₂ 2) Manufacture Department: noise, dust, Pb, Mn, Fe₂O₃, NO₂ 3) Assembly Department: noise 4) Technique Department: NO₂ 3. In the plant factory, some agents were over their TLVs in the following departments: 1) 1 Bay: illumination, Pb, Mn, Fe₂O₃ 2) 2 Bay: dust, illumination, Cu 3) 3 Bay: illumination 4) 4 Bay: noise, dust, Pb, Mn, Fe₂O₃, NO₂ 5) 5 Bay: noise, dust, Pb, Mn, Fe₂O₃, NO₂ 6) 6 Bay: Pb, Mn, NO₂ We concluded that the hazardous agents such as heavy metal fume, noise and noxious gas were required to be controlled at first.

우리나라 한중콘크리트 적용기간의 변화에 관한 고찰

한민철,김경민,신동안,윤기원,한천구 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)

In this paper. variations of the period of cold weather concrete in Korea are discussed based on the climate data of Korean Meteorological Adminstration(KMA). Determination of the period of cold weather concrete with the region is done by following Korean Concrete Institute(KCD, American Concrete Institute(ACD and AIJ(Architectural Institute of Japan(AIJ) specification. Present study is compared with previous study done by the authors. Period of cold weather concrete is found to increase with high altitude and in-land and mountain area. Period of cold weather concrete by present study is shorted compared with that of previous study by about 3~6 days regardless of applied specification. Especially. the period of cold weather concrete at southern region near sea is reduced remarkably compared with that of previous study. This is due the rise of mean air temperature by global warming. In the scope of present study, period of cold weather concrete is provided with table and map diagram.

하수처리장 적용을 위한Semi-카플란 수차가 장착된 마이크로수력발전 시스템

채규정(Kyu Jung Chae),김동수(Dong Soo Kim),천경호(Kyung Ho Cheon),김원경(Won Kyoung Kim),김정연(Jung Yeon Kim),이철형(Chul Hyung Lee),박완순(Wan Soon Park) 大韓環境工學會 2013 대한환경공학회지 Vol.35 No.5

소수력발전은 하수처리장 에너지 자립을 위한 효과적인 대안이다. 본 연구는 유량변동이 크고 유효낙차가 낮은 중소형하수처리장(기흥레스피아) 적용을 위해 피치조절형 세미카플란(semi-kaplan) 마이크로수력발전의 적용 타당성을 평가하였다. 가변피치 semi-kaplan 수차는 유량조절을 위한 가이드베인은 생략하고 피치조절형 런너를 장착하여 기계적 결함은 줄이면서 유량변동이 큰 처리장에 특화된 기술이다. 마이크로수력발전 시스템은 설계조건(유량 0.35 m3/s, 유효낙차 4.7 m)에서 90.2%의 수차효율 달성이 가능하였고 발전용량은 13.4 kW로 산정되었다. 설비가동률 74%로 가동 시 연간 약 86.8 MWh 에너지 생산을 통해 2.1%의 에너지 자립이 가능하고 이는 연간 49톤의 CO₂ 감축효과와 맞먹는다. 경제성 평가결과 초기 건설공사비가 200,000,000원 이하인 경우에는 내부수익률은 6.1%, 순현가는 15,539,000원, 편익-비용률은 1.08, 투자회수년은 15.5년으로 경제성이 충분한 것으로 나타났다. Small scale hydropower is one of most attractive and cost-effective energy technologies for installation within sewage treatment plants. This study was conducted to evaluate the potential of a semi-kaplan micro-hydropower (MHP) system for application to sewage treatment plants with high flow fluctuations and a low head. The semi-kaplan MHP is equipped with an adjustable runner blade, and is without a guide vane, so as to reduce the incidence of mechanical problems. A MHP rating 13.4 kWp with a semi-kaplan turbine has been considered for Kiheung Respia sewage treatment plant, and this installation is estimated to generate 86.8 MWh of electricity annually, which is enough to supply electricity to over 25 households, and equivalent to an annual reduction of 49 ton CO₂. The semi-kaplan turbine showed a 90.2% energy conversion efficiency at the design flow rate of 0.35 m3/s and net head of 4.7 m, and was adaptable to a wide range of flow fluctuations. Through the MHP operation, approximately 2.1% of total electricity demand of Kiheung Respia sewage treatment plant will be achievable. Based on financial analysis, an exploiting MHP is considered economically acceptable with an internal rate of return of 6.1%, net present value of 15,539,000 Korean Won, benefit- cost ratio of 1.08, and payback year of 15.5, respectively, if initial investment cost is 200,000,000 Korean Won.

Effect of Injection Pressure on the Atomization Characteristics of High Pressure Injector in Diesel Engine

( Dong Won Cheon ),( Sung Wook Park ),( Chang Sik Lee ),( Ki Hyung Lee ) 한국액체미립화학회 2001 한국액체미립화학회 학술강연회 논문집 Vol.2001 No.-

The Estimation of Greenhouse Gas Emission From Sudokwon Landfill Site No. 1 in Korea

( Dong Cheon Seo ),( Young Shin Bae ),( Jong Won Kim ),( Jung Woo Lee ),( Dong Hoon Lee ) 한국폐기물자원순환학회(구 한국폐기물학회) 2004 WASTE RECYCLING AND MANAGEMENT RESEARCH Vol.9 No.2