• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2011.03a
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• pp.54-54
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• 2011

방사 공정 최적화를 위해 칩(chip)건조를 실시하여 칩의 수분을 모두 제거한 후 실험을 진행하게 된다. 칩은 그 자체가 공정수분율(0.4%) 또는 그 이상의 수분을 함유하고 있으므로 건조하지 않고 방사하면 현저히 가수분해가 일어난다. 가수분해가 일어난다면 PET 분자량도 저하되어 고분자의 성질을 잃게 되어 방사된 섬유의 물리 화학적 성질에 중요한 영향을 받게 된다. 그러므로 가수분해를 방지하기 위하여 칩내 수분을 제거하는 건조 공정을 거치는 것이다. 개발된 나노은입자을 함유한 Ag/PET 마스터배치의 제사성 및 가연성 평가을 위한 파일럿연구를 행했다. 본 연구에서 사용한 은나노 M/B 칩(chip)의 경우 일반적으로 사용하는 PET 칩에 비하여 낮은 고유점도를 가지므로 방사성에 칩의 수분이 더욱 영향을 미칠 것이라 판단되어 건조공정에 특별한 주의을 하여 진행하였다. 마스터배치의 고유점도(IV)값의 변화에 따른 제사성 및 가연성 평가를 관찰하였다. #3 M/B 칩의 제사성이 #1 M/B 칩 대비 공정성이 개선되어 두 품종 모두 비출사가 발생하지 않았으며, M/B 제조시 분산제 유무에 따른 방사공정성의 차이는 없는 것으로 보인다. 따라서 #1 M/B 대비 공정성이 개선된 점은 M/B의 IV개선에 기인하는 것으로 판단되었다.

• Journal of Korean Society of Rural Planning
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• v.27 no.4
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• pp.83-96
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• 2021

This study analyzes the perception of public value created by Korea Rural Community Corporation, a representative public corporation in the agricultural and rural sector. We categorize agricultural and rural public values as 'stable food supply,' 'conservation of national environment and nature,' 'formation and cultivation of water resources,' 'prevention of soil loss and flooding,' 'conservation of ecological system,' 'conservation of rural tradition and culture.' For the qualitative analysis, we apply content analysis. And, for the quantitative analysis, we use topic modeling and Latent Dirichlet Allocation (LDA) analysis which is used widely in the field of text-mining. Results show that internal perception for value suppliers are mainly created for 'stable food supply,' 'formation and cultivation of water resources,' and 'conservation of rural tradition and culture.' External perception for value demanders are created for all public values, but its evaluation and demand include various aspects including both positive and negative opinions.

• Journal of Korean Society of Rural Planning
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• v.30 no.1
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• pp.81-97
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• 2024

This study examines the effects of adopting Information and Communication Technology (ICT) in livestock farm management on farm sales revenue. Using the 2020 Census of Agriculture, Forestry, and Fisheries, a nationally representative data set constructed by Statistics Korea, this study focuses on a sample of 9,020 livestock farms in South Korea. We employ Propensity Score Matching (PSM) methods to address the potential selection bias between 2,076 farms that used ICT for livestock farm management and 6,944 farms that did not. The findings consistently show that the use of ICT significantly increases farm revenue, taking into account the selection bias. The utilization of ICT in livestock farms leads to a higher increase in sales revenue, particularly for farms with greater sales.

• Journal of the Korean Society of Food Culture
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• v.37 no.3
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• pp.213-238
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• 2022

This study aims to investigate protein consumption market trends in Korea. Protein consumption was divided according to the protein source into meat, fishery, and plant-based protein. To accomplish the goal of this study, food purchase data from 525 households panels collected by the Rural Development Administration over the last 10 years were used. The results of the study showed an increase or decrease in protein consumption by protein type over the last 10 years, and a reason to explain this change has been suggested. Specifically, this study found a dramatic increase in the consumption of several proteins, including beef sirloin, beef tenderloin, seasoned beef & steak, pork belly, pork shoulder, pork neck, seasoned pork, pork cutlet, sweet and sour pork, canned ham, chicken drumstick, chicken breast, dak gangjeong, Chinese fried chili chicken, salmon, eel, abalone, squid, octopus, webfoot octopus, octopus minor, canned whelk, tofu, cold bean soup,and plant-based milk. Some items showed no increase in consumption (such as beef jerky, pork rib, sausage, bacon, whole raw chicken, cutlass fish, oyster, fish cake, crab stick, surimi sausage,and canned fishery), whereas a few items showed decreased consumption (e.g., mackerel, pollack, cod,and canned tuna)

• Journal of Korean Society of Rural Planning
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• v.28 no.4
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• pp.41-53
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• 2022

This study aims to identify perceptions on ESG management evaluation priorities based on public value in the agricultural and rural sector with the focus on the Korea Rural Community Corporation. We conduct Analytic Hierarchy Process (AHP) to analyze how ESG management evaluation priorities are perceived by distinctive groups across industrial fields. To this end, experts working in the agricultural and rural sector and the general public in non-agricultural sector were questioned to derive and compare the weights for each class of ESG management. Results show the followings: First, the weight for the environment (E) was derived as 0.51774 in the first layer, which was found to be the most important evaluation item among the environment (E), society (S), and governance (G). Second, "ecosystem restoration," "urban-rural exchange expansion and regional development," and "increasing transparency" were the most important items in the second layer. Third, priorities between the agricultural and non-agricultural respondents groups were different in environmental (E) and social (S) categories, which explained that perceptions on ESG management by workers and policy makers in the agricultural and rural sector are different from those by general public in the non-agricultural sector.

• Journal of Korean Society of Rural Planning
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• v.28 no.4
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• pp.127-138
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• 2022

In responding to climate change in the agricultural sector, Climate Smart Agriculture (CSA) is an approach to establish a sustainable agricultural system through comprehensive management of technology, policy, and investment. The international community is continually expanding CSA implementation, and it became more important to understand the status of the domestic agriculture system and practices that are relevant to CSA. This study explored the available CSA in domestic agricultural systems and presented the order of relative importance of CSA technology. AHP analysis is employed for the evaluation with the following criteria: productivity, marketability, adaptability, and mitigation. The relative importance is evaluated with six agricultural technologies (soil, crop management, water, energy efficiency, alternative energy, and precision agriculture) in 28 agricultural technology sectors. The results of the AHP analysis showed that 'alternative energy' was found to be a top priority among the agricultural technology sectors, and 'shallow depth drain in rice paddy' was a top priority for agricultural technology. Also, the 'marketability' in soil and water sectors, 'mitigation' in crop management, and 'adaptability' in energy efficiency and alternative energy were given higher priority. The results of this study can be used as a good source for strategic CSA preparation and application.

• Journal of Korean Society of Rural Planning
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• v.29 no.4
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• pp.137-152
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• 2023

Data is indispensable for digital transformation of agriculture with the development of innovative information and communication technology (ICT). In order to devise and prioritize strategies for enhancing data competitiveness in the agricultural sector, we employed an Analytic Hierarchy Process (AHP) analysis. Drawing from existing research on data competitiveness indicators, we developed a three-tier decision-making structure reflecting unique characteristics of the agricultural sector such as farmers'awareness of the data industry or awareness of agriculture among data workers. AHP survey was administered to experts from both agricultural and non-agricultural sectors with a high understanding of data. The overall composite importance, derived from the respondents, was rated in the following order: 'Employment Support', 'Data Standardization', 'R&D Support', 'Start-up Ecosystem Support', 'Relaxation of Regulations', 'Legislation', and 'Data Analytics and Utilization Technology'. In the case of experts in the agricultural sector, 'Employment Support' was ranked as the top priorities, and 'Legislation', 'Undergrad and Grad Education', and 'In-house Training' were also regarded as highly important. On the other hand, experts in the non-agricultural sector perceived 'Data Standardization' and 'Relaxation of Regulations' as the top two priorities, and 'Data Center' and 'Open Public Data' were also highly rated.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.155-156
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• 2012

최근 항만과 해역의 안전성확보가 국제경쟁력의 주요 요인 중 하나로 대두됨에 따라 해상교통관제센터의 효율적인 운영과 관제사의 능력이 강조되고 있으며, 국제적으로 해상교통관제시스템과 관련된 사업이 팽창되고 있어 이와 관련된 국산화 기술 확보가 시급한 실정이다. 하지만 국내의 경우 해상교통관제시스템과 관련된 국산화 기술이 미미하며 해상교통관제에 사용되고 있는 시스템 및 해상교통관제사의 교육에 이용되는 시뮬레이터 개발이 전무하여 문제발생 시 해외제작사에 의존해야하며 교육을 위한 개선사항과 요구사항의 반영에 어려움이 있다. 따라서 본 연구에서는 해상교통관제(VTS) 시뮬레이터를 이용한 해상교통관제사들의 학습능률을 극대화하고, 개발된 해상교통관제(VTS)시뮬레이터의 국내 외 시장경쟁력을 확보하기 위하여 해상교통관제(VTS) 시뮬레이터의 권고 규정 분석 및 설문조사를 통한 해상교통관제사들의 사용자 요구사항을 분석하고자 한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.556-558
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• 2012

해상교통관제사(VTSO; Vessel Traffic Service Operator)는 IMO RESOLUTION A.857(20) on Guidelines for Vessel Traffic Services와 IALA Recommendation V-103 on the Standards for Training and Certification of VTS Personnel에 의거 업무 수행에 있어 훈련되고 검증된 능력을 주기적으로 검증받고 만족스러운 수준을 유지할 수 있도록 갱신해야 한다. 또한, IMO Nav. 56th session Agenda item 8 Development of an E-navigation strategy implementation plan에 E-navigation 이행 전략 및 개발 프로그램에 의하면 육상에서 지원/제공해야 할 해양안전정보의 중요성이 대두되고 있으며, 향후 해상교통관제의 역할이 증대될 것으로 기대된다. 이에 본 연구에서는 현재 VTS Hardware에 집중된 관심과 초점이 인적 요소에 모아져야 함을 강조하면서, 해상교통관제 운영자의 자질 강화에 중점을 둔 교육 훈련프로그램 개발 방안을 제시하였다.

• Journal of Sericultural and Entomological Science
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• v.22 no.1
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• pp.63-68
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• 1980

The purpose of this analysis is to collect the information on managerial aspects for improving the profitability of silk reeling industry in Korea. Various finacial statistics including balance sheet, profit and loss statement and manufacturing cost statement were analyzed by use of 21 randomly selected enterprise data prepared report by Korea sericultural association during 1972∼1974. The results are as follows. 1. The ratio of profit to sales is the most important factor affecting the profitability of silk reeling industry. 2. This ratio is controlled by the general management and selling cost. 3. The ratio of manufacturing expenses shows a high correlation to the production cost of raw silk.