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웹 상에서 동작하는 에이전트 기반 일정 관리 시스템의 설계 및 구현
유재홍(Jaehong Yoo),성미영(Meeyoung Sung),채진석(Jinseok Chae) 한국정보과학회 1999 한국정보과학회 학술발표논문집 Vol.26 No.2Ⅱ
이 논문은 웹 상에서 동작하며 지능을 가지는 에이전트의 도움을 받아 효율적으로 일정을 관리할 수 있도록 도와주는 일정 관리 시스템의 설계 및 구현에 대해 기술한다. 이 시스템은 멀티 에이전트 구조를 가지고 있으며, 에이전트들 간의 통신을 위해서는 KQML(Knowledge Query and Manipulation Language)을 사용하고 있다. 이것은 시스템에 유연성과 적응성을 제공해 주며, 새로운 에이전트를 추가할 때 에이전트들 간의 이형질성을 극복할 수 있도록 해준다. 또한, 웹 환경을 이용함으로써 클라이언트 프로그램을 따로 설치할 필요 없이 어느 곳에서나 웹 브라우저를 이용하여 협동작업을 수행할 수 있다.
외국기업 R&D센터의 국내 유치를 위한 전략 모형개발과 정보통신분야에 대한 적용
유재홍(Jaehong Yoo),엄기용(Kiyong Om),김병근(Byung-Keun Kim),김관영(Kwanyoung Kim),이중만(Jungmann Lee) 한국기술혁신학회 2007 기술혁신학회지 Vol.10 No.4
우리나라는 u-IT839 전략을 추진하는 과정에서 막대한 자본 및 인력의 투입에 따른 높은 위험과 불확실한 성공기능성을 극복하기 위한 방안으로 국제 전략적 제휴를 적극 추진하였고, 2006년 말까지 다국적 IT기업의 R&D센터 15개를 유치하는데 성공하였다. 그러나 아직 유치성과를 논의하기에는 이른 시점이지만, 비판적 시각과 우려의 소리가 들리고 있다. 즉, 유치기관의 활용에 대한 전략적인 고려 없이 양 중심으로 유치하여 R&D성과가 초기의 기대에 못 미친다는 것이다. 이러한 현실적인 문제에 당면하여 본 연구에서는 해외 R&D센터를 유치하는 국가의 입장에서 유치 효과를 극대화하기 위한 분석 모형을 개발하고, 이를 정보통신기술분야에 적용하여 주요 기술분야별 및 세부기술별 적합한 유치 전략을 제안하고자 한다. 기존의 많은 연구들이 다국적기업의 입장에서 수행된 점을 고려한다면 본 연구가 갖는 의의가 크다고 할 것이다. 본 연구의 결과는 세계 각국의 R&D센터 유치경쟁이 격화되고 있는 상황에서 선택과 집중을 가능하게 하고, 유치한 R&D센터 간 시너지를 추구함으로써 유치성과를 향상시키는데 활용될 것으로 기대한다. 끝으로 본 연구의 의의와 한계점, 그리고 향후 연구방향을 논의한다. As of April 2006, Korea had successfully invited twelve global IT R&D centers to help implement the u-IT839 strategy, but there have also been some worries about their research and collaboration performance in Korea. Although it is too early to judge the invitation outcome only after two years or less of their working, the Korean government is being advised to employ a more customized invitation strategy. In this paper, an analytic framework for the attraction of global R&D centers is developed based on the attractiveness-competitiveness matrix, and is applied empirically to the IT industry. Fourteen major IT technology categories and their sub-technological areas are classified into four strategic groups (priority group, wish group, consideration group, and hold group) along the framework via expert surveys and the Analytic Hierarchy Process (AHP) technique. This study is expected to help the government to implement the 'select and focus' strategy in inviting global R&D centers and creating synergy effects between them by providing basic data on global R&D partnership priorities. The implications and limitations of the research and future research directions are discussed at the final section.
유재홍(Jaehong Yoo),박건희(Gun Hee Park),성종승(Jong Seung Sung),송호남(Honam Song),신소영(So young Shin),정원호(Won Ho Jung),허정민(Jung Min Heo) 충남대학교 농업과학연구소 2014 농업과학연구 Vol.41 No.4
Antibiotics in the diets for poultry were not only used for avoiding and (or) control bacterial infections but for promoting growth of the birds. However, there has been massive concerns of negative effects of antibiotics on human health such as development of antibiotics-resistance bacteria and (or) genes. Subsequently, some of countries (i.e., European Union member of country and South Korea) banned the use of antibiotics as growth promoters in the diets for livestock industries in 2006 and 2011, respectively. Thus, it has become important to develop feeding strategies and feed additives to control and reduce the occurrence of diseases in livestock without using in-feed antibiotics. In this review, therefore, it is attempted to gather information with respect to (1) understanding the digestive physiology and (2) knowledge pertaining to interaction linking feed additives and its physiological and metabolic responses in broiler chickens.
유재홍 ( Jaehong Yoo ),엄기용 ( Kiyong Om ) 한국실천공학교육학회 2021 실천공학교육논문지 Vol.13 No.2
최근 우리나라 청년실업은 경제사회적 측면에서 부정적인 영향을 미치며 심각한 사회문제로 부각되고 있다. 이러한 청년실업에 대한 하나의 대안으로서 글로벌 일자리 창출이 오래 전부터 대두되어 왔으며, 정부는 2013년부터 기존의 해외진출 사업들의 내실화를 위해 해외 취업, 인턴, 봉사 및 창업 지원을 “K-Move” 브랜드로 통합하여 추진하고 있다. 그러나 2018년 기준으로 볼 때 해외취업 희망자 중 실제로 해외취업에 성공하는 비율은 24.5%에 불과한 수준이다. 본 연구는 해외취업자를 대상으로 한 설문조사 결과를 분석하고, 이를 토대로 해외취업의 성공률을 높이기 위한 전략방향을 제시하고자 하였다. 설문조사 결과가 주는 주요 해외취업 전략방향은 다음과 같다. 첫째, 해외취업의 명확한 목표설정이 필요하다. 둘째, 해외취업을 위한 사전준비 활동이 보다 강화되어야 한다. 셋째, 해외취업과 관련한 정보인프라의 고도화가 필요하다. 그리고 넷째, 지역 및 국가별 차별화된 취업전략이 필요하다. 이러한 연구결과는 해외취업 희망자 뿐만 아니라 해외취업 지원정책을 수립하고 실행하는 정부기관에도 유용한 시사점을 줄 것으로 기대된다. Recently youth unemployment has long remained a nagging problem in Korea, contributing to aggravating the economy as well as the society. As an alternative solution to this problem overseas employment has been encouraged by the government who started the “K-Move” program in 2013 by integrating existing overseas employment, internship, service, and entrepreneurship support programs administered by several governmental ministries. However, employment rate of overseas job seekers was only 24.5%in 2018. This study aimed to recommend strategic directions for increasing the overseas employment rate through a questionnaire survey of the overseas employed. The factual survey results showed the following four strategic directions. First, job seekers should set clear career goals for overseas employment. Second, overseas job seekers should thoroughly prepare in advance in terms of language and related certificates. Third, IT infrastructure for offering information on overseas employment should be improved and upgraded. And, fourth, overseas employment strategies should be tailored to the specific regional or national environment. These strategic directions are expected to be of great help to overseas job seekers as well as government policymakers for formulating and implementing overseas employment support programs.
유재홍(Jaehong Yoo),박건희(Gun Hee Park),성종승(Jong Seung Sung),송호남(Honam Song),신소영(So young Shin),정원호(Won Ho Jung),허정민(Jung Min Heo) 충남대학교 농업과학연구소 2014 Korean Journal of Agricultural Science Vol.41 No.4
Antibiotics in the diets for poultry were not only used for avoiding and (or) control bacterial infections but for promoting growth of the birds. However, there has been massive concerns of negative effects of antibiotics on human health such as development of antibiotics-resistance bacteria and (or) genes. Subsequently, some of countries (i.e., European Union member of country and South Korea) banned the use of antibiotics as growth promoters in the diets for livestock industries in 2006 and 2011, respectively. Thus, it has become important to develop feeding strategies and feed additives to control and reduce the occurrence of diseases in livestock without using in-feed antibiotics. In this review, therefore, it is attempted to gather information with respect to (1) understanding the digestive physiology and (2) knowledge pertaining to interaction linking feed additives and its physiological and metabolic responses in broiler chickens.
유재홍(Jaehong Yoo),구본진(Bonjin Koo),김은주(Eunjoo Kim),허정민(Jung Min Heo) 충남대학교 농업과학연구소 2015 농업과학연구 Vol.42 No.1
The study was conducted to determine the effect of corssbred Korean native chickens (CKNC) on growth performance indices for hatch to 28 days. A total of 192 1-day-old birds were divided into one of 4 CKNC groups by 5 Korean native pure strains. Diets used in the study consisted of 2 phases with corn and soybean meal basis as earlier (1~2 weeks; crude protein 18.5%, metabolizable energy 3,000 kcal/kg), and grower (2~4 weeks; crude protein 15.0%, Metabolizable Energy 2,850 kcal/kg). Body weight and feed intake were measured bi-weekly. Crossbred 1G (group of family line) had higher body weight and average daily gain whereas crossbred 5Y had greater average daily feed intake and feed conversion ratio than other crossbred Korean native chicken for hatch to 28 days. The results in the current study indicated that crossbred 1G had higher growth performance indices compared with other crossbred Korean native chicken for hatch to 28 days.
고온 환경 조건에서 액상 라스베라트롤의 급여가 육계의 생산성, 육질 및 회장 형태에 미치는 영향
이영주(Young-Joo Yi),유재홍(Jaehong Yoo),사미루(S. Wickramasuriya Samiru),김은주(Eunjoo Kim),구본진(Bonjin Koo),허정민(Jung Min Heo) 한국가금학회 2016 韓國家禽學會誌 Vol.43 No.1
A total of 144 one-day-old male broilers (ROSS × Ross 308) (42±0.1 g) were used in a completely randomized design and allotted to one of three dietary treatments to give 6 replicates per treatment (8 birds per cage). The three watery dietary treatments were 1) a corn-soybean meal-based relation [Negative control (NC); no antimicrobial compounds added] with tab water, 2) 8 ppm liquid-alpha-lipoic acid [Positive control (PC)] or 3) 100 ppm liquid-resveratrol. All dietary treatments were continuously provided as a liquid form. Birds were housed in a battery cage (n=48), and were offered liquid dietary treatments at all times. The ambient temperature was maintained at 32±1℃ for the first 3 weeks and decreased gradually to 28±1℃ by the end of the experiment (d 35) to induce moderate heat stress. One bird per pen (n=6) was euthanized via cervical dislocation at day 21 to obtain terminal ileum to measure villous height and crypt depth, while another bird per pen (n=6) was similarly euthanized at day 35 and used to harvest breast meat and drumsticks to evaluate meat quality traits. Birds fed liquid-resveratrol did not improve (P>0.05) body weight and average daily gain compared with those fed other dietary treatments from day 1 to day 35. Birds fed liquid-resveratrol had no effect (P>0.05) on villous height compared with birds were in other dietary treatments at day 21. Liquid-resveratrol had no effect (P>0.05) on thiobarbituric acid reactive substance (TBARS) in drumsticks compared with other dietary treatments at day 35. Furthermore, birds fed liquid-resveratrol had no effect (P>0.05) on DPPH radical scavenging activity both in breast meat and drumsticks compared with those fed other dietary treatments at day 35. Morphological changes of ileum were not observed by immunofluorescence, and the level of occludin protein from ileum extracts also did not differ among groups. Our results suggested that liquid form of antioxidant compounds used in the current study such as alpha-lipoic acid (8 ppm) or resveratrol (100 ppm) did not improve growth performance, meat quality traits and histology of terminal ileum compared with those fed negative control in broiler chickens under moderate heat stress for 35 days.