• 한국환경과학회지
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• 제21권5호
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• pp.647-654
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• 2012

The goal of this study was to investigate the distribution chart of management and satisfaction through Hanwoo education program and to provide fundamental data and development conformity available on the management and educational program to managers. In this study, we chose 75 managers taking part in Hanwoo education program as pre-test and applied satisfaction for education program to 33 managers randomly selected as post-test. The results of this study are as follows: First, age and academic career had a significant (P<0.05) effect on breeding size, breeding career, sales, and management methods. This may be due to the fact that managers in Hanwoo industry tended to raise academic standards and the age group moved towards young age rather than middle and old ages. However, an academic career was unaffected by sale and management methods. Second, managers who randomly selected the education program showed higher satisfaction about the program and lower or usual interest and intention in the educational environment, incidental facilities, and reviews. In conclusion, to equip the constituent parts of education program with entire propriety and an effective running system, information on breeding size and breeding career for managers in Hanwoo Industry with respect to age and academic career had to be clearly premeditated. It also needed the educational program to look at it from the standpoint of the managers.

• 한국생활과학회지
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• 제20권2호
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• pp.285-298
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• 2011

The purpose of this study was to analyze in detail the employment characteristics of the elderly over 65 years old and to compare those that have experienced no job change in the last 10 years with another group that have experienced job change at least once in the last 10 years. From the 10th wave data(KLIP), participants who were over 65 years old were chosen and their employment status for the last 10 years was reviewed. The results of this study were as follows: first, the analysis of demographic profiles indicated that householders and elderly couples with low education levels and low socioeconomic status were more likely to be employed compared to others. Second, in terms of work-related characteristics, it was revealed that the elderly who were employed tended to be non-paid workers, employers, and self-employed workers, primarily in the farming, fishing, forestry, and the mining industries, these were the elderly workers who had experienced job change three times or more in the last 10 years. Third, the analysis of economic characteristics indicated that elderly who were employed tended to rely more on private income transfers. Last, when the elderly who had experienced no job change in the last 10 years were compared to the elderly who had experienced job change in the last 10 years, the two groups differed significantly in terms of employment status, type of business, and occupation category.

• 농촌계획
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• 제21권1호
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• pp.103-115
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• 2015

As rural development projects, mostly carried out in a top-down development method in the past came to take a bottom-up development method in earnest, entering the 2000s, resident participation became an essential element of a rural community design project, to the extent that it can influence the success or failure of a rural community design project. It is taken for granted that rural residents independently participate in community design projects, but as they are accustomed to various subsidy projects carried out by the government and become increasingly aging, it is not easy to induce their spontaneous participation in farming areas with such problems. Especially, to prevent the distrust between administrative agencies and residents from serving as an obstacle in the residents' spontaneous participation, it is necessary to construct horizontal governance among the village residents, administrative agencies and the group of experts supporting for the project. This study attempted to verify the mediating effect of governance in the relationship between resident participation and the performance of the rural community design project based on this problem recognition, and for this purpose, the results of a survey with residents in Utturu Village, Hangyeong-myeon, Jeju-si, which was completed by carrying out a comprehensive rural development project, the typical bottom-up community design project was used for an empirical analysis. The results of the study can provide implications for setting directions, establishing strategies and constructing governance of rural community design projects in the future, and especially, it can be said that this study has academic significance in that governance is recognized as an important variable related to the project performance.

• 방사성폐기물학회지
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• 제10권4호
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• pp.263-272
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• 2012

파이로처리 방사성 폐기물 처분 시스템에 대하여 골드심을 이용하여 개발된 확률론적 평가 프로그램을 이용하여 폐쇄후 방사선적 안전성 평가를 수행하였다. 처분장으로부터 핵종이 유출되어 다양한 처분 시스템 내 매질을 이동하는 것에 관련된 정상 시나리오에 대한 평가를 위하여, 평가 결과에 대한 민감도나 일반적으로 불확실성의 범위가 큰 입력자료 중 주요하다고 판단되는 파라미터를 9개로 선정하여 평가에 고려된 핵종 중 Tc, Sn, Pa, Cs 4개의 원소에 대하여 평가 결과를 논의해 보았다. 확률론적 안전성 평가와 함께 이들 각 입력 자료에 대한 최종 방사선 피폭선량에 대한 민감도도 분석하여 결과에 대한 각 입력 파라미터의 중요도도 비교하였다.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2007년도 학술발표회 논문집
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• pp.15-21
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• 2007

Due to a decreasing tendency of river runoff in the Laohahe River basin in North China, quantitative analysis was made with the aid of the conceptual Xinanjiang model under the background of nature climate variability as well as human-induced climate change according to the long-term observational hydrometeorological data. In the past, the human effect on surface water resources was estimated by investigating the impact of human activities on each item in the equation of water balance, so as to calculate water quantity of each item in the original natural status. It seems to be clear conceptually. It is appropriate just for the case of direct impact, such as water transfer from one basin to another, water storage by various scales of hydraulic projects, besides a huge amount of investigation and indeterminate statistics data when applied in practice. It is difficult for us to compute directly water consumption due to the implementation of measures for soil conservation, the improvement of farming techniques in agriculture, the growth of population in towns and villages, and the change of socioeconomic structure. In view of such situation, the Xinanjiang model was used to separate human impact from the climatic impact on water resources. Quantitatively human activity made river runoff decrease by 1.02, 50.67, 58.06 mm in 1960's, 1970's, 1980's, respectively, while by 97.2 mm in 1990's in the sense of annual average in the Laohahe River basin.

• Asian-Australasian Journal of Animal Sciences
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• 제30권7호
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• pp.930-937
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• 2017

Objective: The I pig is a long nurtured longstanding breed in Vietnam, and contains excellent indigenous genetic resources. However, after 1970s, I pig breeds have become a small population because of decreasing farming areas and increasing pressure from foreign breeds with a high growth rate. Thus, there is now the risk of the disappearance of the I pigs breed. The aim of this study was to focus on classifying and identifying the I pig genetic origin and supplying molecular makers for conservation activities. Methods: This study sequenced the complete mitochondrial genome and used the sequencing result to analyze the phylogenetic relationship of I pig with Asian and European domestic pigs and wild boars. The full sequence was annotated and predicted the secondary tRNA. Results: The total length of I pig mitochondrial genome (accession number KX094894) was 16,731 base pairs, comprised two rRNA (12S and 16S), 22 tRNA and 13 mRNA genes. The annotation structures were not different from other pig breeds. Some component indexes as AT content, GC, and AT skew were counted, in which AT content (60.09%) was smaller than other pigs. We built the phylogenetic trees from full sequence and D loop sequence using Bayesian method. The result showed that I pig, Banna mini, wild boar (WB) Vietnam and WB Hainan or WB Korea, WB Japan were a cluster. They were a group within the Asian clade distinct from Chinese pigs and other Asian breeds in both phylogenetic trees (0.0004 and 0.0057, respectively). Conclusion: These results were similar to previous phylogenic study in Vietnamese pig and showed the genetic distinctness of I pig with other Asian domestic pigs.

• 방사성폐기물학회지
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• 제12권1호
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• pp.37-43
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• 2014

당해 연구의 제 1 부 논문에서 확률론적으로 접근한 데에 이어, 파이로처리 방사성 폐기물 처분장에 대하여 폐쇄 후 처분장의 성능에 영향을 줄 수 있는 근계 영역 내 세가지 주요 설계 관련 요소에 대하여 각 핵종별로 최종 피폭 선량에 주는 민감도를 결정론적인 방법을 통하여 조사해 보았다. 농축 피폭 집단에 방사선 피폭을 주는 주요한 핵종들이 처분장에서 유출된 후 처분 시스템 근계 영역 내 다양한 매질을 이동하는 것에 관련되어 이들 요소가 어느 정도의 영향을 주게 되는지 보기 위하여 제 1 부에서 처분 용기의 수명, 선원항으로서의 처분 용기에서의 연간 핵종 유출률, 그리고 처분장 주요 인공 방벽으로서의 완충재의 손실도 등의 변화를 확률론적 접근 방법으로 검토한 데 이어, 제 2 부의 이 연구를 통해서는 통계적인 확률론적 민감도를 검토하는 대신 세가지 인자에 대하여 가장 나쁜 경우와 이상적인 조합을 구성한 후 이를 결정론적으로 평가하여 인지된 3개의 요소들이 제 1 부에서의 결과와 동일하게 처분장 설계에 매우 중요할 수 있다는 결과를 얻을 수 있었다.

• 농촌지도와개발
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• 제10권2호
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• pp.181-192
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• 2003

With emphasis on environmentally safe and sustainable and economically sound and oriented to consumer, this study intends to assess the consumer's cognition and attitudes for safe food distribution, to investigate the supplying system of the organic farm products, to survey the consumer and life cooperatives dealing with organic farm products, and to draw some implications toward environment- and consumer-oriented agriculture. Related literatures and available documents were reviewed to conceptualize the environmental-and consumer-oriented agriculture and consumer and life cooperatives, to grasp the nationwide status of such alternative agriculture and consumer cooperatives, and investigate the consumers' cognition and attitude. In order to investigate the consumers' needs for organic farm products and to grasp the active consumer and life cooperatives dealing with organic farm products, questionnaire method and non-structured interview were applied. The environment-and consumer-oriented agriculture refers hero to the farming system in which any farm food and other living products giving no harm to human and livestock health and catering the consumers' need. The consumer and life cooperatives is consumer's group buying and selling organic farm products organized in the cooperative system with which any consumer can be affiliated to buy organic farm products safely and reasonably.

• 한국지역사회생활과학회지
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• 제22권4호
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• pp.599-613
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• 2011

This study aimed to provide an efficient time management scheme for farmers by analysing how they experience time constraints in spending their time and understand time management. Firstly, farmers found that they didn't have enough time for farm keeping as a result of house work obligations. It was caused by excessive time for agricultural work. Thus, 93.7% of respondents recognized that ‘they were pressed for time' because there is relatively less time to spend for socio-cultural and physiological matters. In addition, 83.0% responded that they felt the pressure of something. Respondents who were in forties reduced their sleeping hours due to lack of time. The majority of people who were in the farmhouse doing controlled horticulture cannot enjoy their own time for leisure owing to a lack of time. Secondly, respondents under thirty-nine years of age were solving the problems of time constraints as prioritizing matters, planning handling time and utilizing household instruments. On the other hand, respondents who were in forties found the solution by reflecting on their conduct toward a time consumption plan, self-evaluation and received help from their family and/or neighbors. A group of respondents who had already graduated from college or higher education often reflected on their conduct and self-evaluated. Respondants who participatied in farmhouse controlled horticulture, generally took turns in managing their house work. For reducing farmers' time constraints and managing their time efficiently, they should standardize matters done repeatedly and also manage time by dividing work among family members. Furthermore, if a long-term time scheme such as more than a month is established and practiced, time constraints may be somewhat solved.

• Journal of Biosystems Engineering
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• 제10권2호
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• pp.27-35
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• 1985

This study was carried out to determine the optimum size and number of farm machines for various sizes of land coverage of the cooperative farm machinery utilization systems in Korea-namely Saemaul Mechanized Farming Group (SMFG). Fifty-one SMFG were selected from 8 counties in Chonnam province, and ownership, operation and management of farm machinery were surveyed. Annual covered area, cost and the break-even-point area of farm machinery were analyzed on the bases of the surveyed data and the present governmental subsidy policy, and then the optimum level of farm machinery ownership was determined. The results are summarized as follows: 1. The break-even-point areas of the tractors of 22-23ps, 28ps and 47-50ps were estimated as 12.1ha, 15.3ha and 21.6ha, respectively. The optimum size of a tractor for land sizes of 10-20ha, 20-30ha, and 30-40ha were estimated as 22-23ps, 28ps, and 47-50ps, respectively. 2. The break-even-point area of a rice transplanter was estimated as 3.3ha. The optimum numbers of rice transplanter for land sizes of 10-20ha, 20-30ha, and 30-40ha were estimated as 2,3, and 4, respectively. 3. The break-even-point areas of a speed sprayer (attached on power tiller) and a power sprayer were estimated as 114.6ha and 15.3ha, respectively. The optimum numbers of power sprayer for land sizes of 10-20ha, 20-30ha, and 30-40ha were estimated as 2,3 and 4, respectively. A speed sprayer is desirable for an area of more than 30ha coverage. 4. The break-even-point area of a combine was estimated as 10.7ha. The optimum numbers of combine for land sizes of 10-20ha, 20-30ha, and 30-40ha were estimated as 1,2, and 3, respectively.