복지 사육환경에서 산란계 및 육계의 사양지침 변화

이준엽,이용준,채병조,이정헌,윤석민,이명호,오상집,Lee, Jun-Yeop,Lee, Yong-Joon,Chae, Byung-Jo,Lee, Jeong-Heon,Yoon, Seok-Min,Lee, Myoung-Ho,Ohh, Sang-Jip 한국축산환경학회 2010 축산시설환경학회지 Vol.16 No.1

Poultry welfare has recently appeared as worldwide concern as well as Korea. The recent action plan for farm animal welfare introduced by the European Commission intends to expand the body of regulatory standards. In this context, many countries and/or organization are on the verge of establishing the most optimum poultry welfare standards. To establish the most optimum standards, comparative analysis of feeding regimen before and after welfare-bestowed environment need to be preceded. Most guidelines or standards for poultry welfare do not suggest the nutritional requirements and feeding system in detail, although it is deterimental especially for the farmer. This review intends to find scientific base to establish detailed welfare feeding guidelines. However, only limited research has been conducted in the view of actual poultry welfare. The results indicated the incidence of SDS, ascites, skeletal dysfunctions caused by fast growth rate in broiler, feather pecking and cannibalism in laying hen, and feed restriction in broiler breeder could be reduced by changing nutritional regimen and feeding strategies or both. The regimen and feeding strategies are certainly near to the direction that the poultry welfare ought to be in the right track. In this article, feeding and drinking guidelines in many standards as well as welfare feeding experiments have been reviewed and compared In the view of chicken productivity, welfare physiology and poultry health.

추가시설관리 - 혹서기에 쾌적함, 이렇게 유지하자

이준엽,Lee, Jun-Yeop 한국낙농육우협회 2015 낙농·육우 Vol.35 No.7

저분자 OLED 소자기술

이준엽,Lee, Jun-Yeop 한국정보디스플레이학회 2006 인포메이션 디스플레이 Vol.7 No.1

Design and Characteristic Analysis of an Axial Flux High-Temperature Superconducting Motor

Jun-Yeop Lee(이준엽),Gi-Dong Nam(남기동),Minwon Park(박민원) 대한전기학회 2022 대한전기학회 학술대회 논문집 Vol.2022 No.7

Design and Analysis of a Solenoid Valve for Submarine Direction Control

Jun-Yeop Lee(이준엽),Byeong-Soo Go(고병수),Sang-Ho Kim(김상호),Hyun-Jin Ha(하현진),Minwon Park(박민원) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.11

The solenoid valve used in a submarine direction control system consists of a solenoid coil, a coil core, a housing surrounding the outer of the coil, and a plunger as a driving part. The solenoid valve is a device that uses the magnetic force generated from the applied power to move the plunger, the driving part inside the valve, to control the flow of fluid. Therefore, the magnetic properties and structure of each part of the solenoid valve greatly affect the performance of this valve. In this paper, considering the material characteristics of each part of the solenoid valve, the design of the solenoid valve for a submarine direction change and the electromagnetic finite element numerical analysis applying the two-dimensional axisymmetric shape were performed.

중국의 지역별 기업경영효율성에 대한 연구

이준엽 ( Jun Yeop Lee ) 한중사회과학학회 2008 한중사회과학연구 Vol.6 No.1

Regional integration is one of key factors affecting improvement and stability of the Chinese economic growth. In this paper, using Data Envelopment Analysis, the corporate technical efficiency of individual 31 regions are studied. Moreover, the correlation between the corporate efficiency index and business environmental factors are analysed. Our main findings are as follows. Firstly, the regional locations matter in deciding corporate technical efficiency, in which firms located in the east-coast area generally have better performances compared with firms in the mid-west area. Secondly, the corporate ownerships also have effects on the technical efficiencies. Foreign companies and privately owned companies have relatively superior efficiencies that the state owned companies. Thirdly, the state owned companies have little efficiency changes in the period 1999-2006, but those of the foreign companies are significantly decreased, witch means that the efficiency gaps among the different regions are widened. Lastly, the business innovation environments have become to have more significant positive effects on the corporate technical efficiency.

아이템 메타데이터를 이용한 고성능 협력 추천 기법

이준엽(Jun Yeop Lee),김경수(Kyung Soo Kim),최용석(Yong Suk Choi) 한국정보과학회 2014 정보과학회논문지 : 소프트웨어 및 응용 Vol.41 No.2

본 논문에서는 기존의 협력 추천 기법에서 한계점으로 작용했던, 서비스 초기단계의 Data sparsity로 인한 추천 성능 저하 문제를 완화 시키는 방법으로, 아이템 메타데이터를 추천에 이용하는 기법을 제안한다. 본 논문에서는 총 두 가지 형태의 아이템 메타데이터를 사용한다. 첫 번째는 아이템을 설명하는 짧은 문서 형태의 메타데이터이고, 두 번째는 아이템간의 연관성을 나타내는 링크 정보이다. 기존 추천 기법의 경우, 비교적 사용자의 숫자가 충분하지 못한 서비스 초기 단계에, 추천의 성능이 급격히 저하되는 문제를 가지고 있다. 이러한 문제점을 극복하기 위하여 사용자의 유입과 독립적으로 확보가 가능한 데이터인 아이템 메타데이터를 추천에 이용하는 방법을 제시하였다. 짧은 문서 형태의 메타데이터는 TF-IDF 벡터로, 링크 정보는 그래프 형태로 변환하여 아이템 간의 유사도 계산에 이용되었다. 실험 결과, 아이템 메타데이터를 사용함으로써 추천 성능을 효과적으로 향상시킬 수 있었다. In this research, in a way that reduces the problem that acted as a limit in existing collaborative recommendation methods, a decrease in the recommendation performance by Data sparsity of the early stages of service, we propose a recommendation method using item-metadata. First is a short document format that describes the item, second is a link information indicating a relationship between items. In the early stages of recommendation service, the number of users was not sufficient; you have the problem that the performance of collaborative recommendation system decreases noticeably. To overcome these problems, we applied the method that recommends items using item-metadata that can be collected independently of the inflow of the user. Item-metadata that is short document format is converted to the TF-IDF vectors. On the other hand, link information is converted to a graphical format. Finally, Both were used to calculate the similarity between items. As a result, it was possible to effectively improve the performance of the recommendation by using the item-metadata.

중국의 지역별 금융발전과 경제성장

이준엽 ( Jun Yeop Lee ) 한중사회과학학회 2012 한중사회과학연구 Vol.10 No.1

Financial development is argued as a determinant factor for the economic growth. With a similar logic, regional financial development gap could be a explanatory variable to understand the regional income gap in China. Despite its vital role, regional financial development has not been well defined and studied yet, which seems to be largely attributed to lack of sufficient data. Using deposit to GDP ratio as a proxy index for the regional financial development, this paper has challenged to verify that the causal relations between a regional financial development and a regional income growth. From the empirical analysis, in the east-costal region, which is known as the most financially developed area, the cointegration relationship exists. This finding strongly suggests that the financial development and economic growth nexus could be an useful approach to explain the regional economic growth gap in China.

아이템 메타데이터를 이용한 고성능 협력 추천 기법

이준엽(Lee Jun Yeop),김경수(Kyung Soo Kim),최용석(Yong Suk Choi) 한국정보과학회 2013 한국정보과학회 학술발표논문집 Vol.2013 No.6

경주지역 음식관광객의 관여도가 참여활동과 충성도에 미치는 영향

이준엽 ( Lee Jun Yeop ),권미영 ( Kwon Mi Young ) 경남대학교 산업경영연구소 2010 지역산업연구 Vol.33 No.1

본 연구는 경주지역 음식관광객을 대상으로 관여도, 다양성 추구성향이 음식관광 참여활동과 충성도에 미치는 영향을 분석한 연구로 관광학 분야에서 아직까지 활발하게 진행되지 못하고 있는 음식관광의 국내·외 연구 동향을 살펴보고자 한다. 음식선택과 관련된 개인속성 중에 음식관광 관여도, 음식관광의 다양성 추구성향 변수와 음식관광 참여활동의 관계, 음식관광 참여활동과 음식관광 참가 후 만족도와 충성도의 관계, 음식관광 참가 후 만족도와 충성도의 영향 관계를 파악하고자 한다. 이를 통해 음식관광의 개선방안과 앞으로의 음식관광의 효과적인 발전방안을 모색하고자 한다. 분석은 SPSS 12.0과 AMOS 5.0을 사용하여 통계처리를 실시하였으며, 실증분석 결과 첫째, 음식관광 관여도(자기 표현, 사회적 유대, 개인 중심)와 음식관광 참여활동(지역음식, 음식체험, 특산물 구매, 편리한 음식) 하위차원의 인과관계를 규명하였다. 둘째, 다양성 추구성향과 음식관광 참여활동(지역음식, 음식체험, 특산물 구매, 편리한 음식) 하위차원의 인과관계를 규명한 결과, 새로운 음식을 시도하려는 관광객들은 지역음식과 되도록 편리한 음식에 유의한 영향을 미치고 있음을 알 수 있으나, 음식체험이나 특산물 구매에는 유의한 영향을 미치지 못하는 것으로 나타났다. 셋째, 음식관광 참여활동(지역음식, 음식체험, 특산물 구매, 편리한 음식)과 음식관광 참가 후 만족도 하위차원의 인과관계를 규명한 결과, 지역음식, 음식체험, 특산물 구매에는 유의한 영향을 미치는 것으로 나타났으나, 편리한 음식에는 유의한 영향을 미치지 못하는 것으로 나타났다. 마지막으로, 음식관광 참가 후 만족도가 충성도에 유의한 영향을 미치는 것으로 분석되어 음식관광에 참가한 후 만족도가 높은 관광객일수록 지역을 다시 찾는 재구매의사나 다른 사람에게 지역을 알리는 추천의사가 많이 있는 것을 알 수 있다. Recent food industry is not being developed a combination with tourism industry but being developed an individual industry as the concept to understand the regional culture is being profound and the food is to be precious tourism resources that implies all regional culture and gets a tour to be delightful. For the purpose of this dissertation, food tourism is defined as tourist's food related activities at the destination, such as dining, purchasing local food products, and experiencing the characteristics of a unique food-producing region. The objective of this study is to analyze the relation 1) between food tourism involvement and variety-seeking tendency and the tourists who participate in food related activities, 2) between tourists' satisfaction and loyalty after food related activities, 3) between tourists' satisfaction and loyalty after food tourism. The questionnaire survey had been conducted twice. Among data collected from the first and second survey, 375 data were used for this empirical study. The obtained data were analyzed with frequency analysis, descriptive analysis, exploratory factor analysis(EFA), reliability analysis, confirmatory factor analysis(CFA), second-order factor analysis, covariance structure analysis(CSA), and SPSS 12.0 and AMOS 5.0 were used for statistical programs of empirical analysis. The research on the activity feature of food visitors at tourism destination is little developed. Although food industries have tremendous effects on tourism industries, a research on its contribution or food related activities is much deficient. As a result, a general overview of food tourism and various plans of food related activities are sought and the food tourism will be a newly inland tourism trend in this research.