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Change of NDVI by Surface Reflectance Based on KOMPSAT-3/3A Images at a Zone Around the Fukushima Daiichi Nuclear Power Plant (후쿠시마 제1 원전 주변 지역의 KOMPSAT-3/3A 영상 기반 지표반사도 적용 식생지수 변화)

  • Lee, Jihyun;Lee, Juseon;Kim, Kwangseob;Lee, Kiwon
    • Korean Journal of Remote Sensing
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    • v.37 no.6_3
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    • pp.2027-2034
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    • 2021
  • Using multi-temporal KOMPSAT-3/3A high-resolution satellite images, the Normalized Difference Vegetation Index (NDVI) for the area around the Fukushima daiichi nuclear power plant was determined, and the pattern of vegetation changes was analyzed. To calculate the NDVI, surface reflectance from the KOMPSAT-3/3A satellite image was used. Satellite images from four years were used, and the zones where the images overlap was designated as the area of interest (AOI) for the study, and by setting a profile passing through highly vegetated area as a data analysis method, the changes by year were examined. In addition, random points were extracted within the AOI and displayed as a box plot to quantitatively indicate change of NDVI distribution pattern. The main results of this study showed that the NDVI in 2014 was low within AOI in the vicinity of the nuclear power plant, but vegetated area continued to expand until 2021. These results were also confirmed in the change monitoring results shown in a profile or box plot. In disaster areas where access is restricted, such as the Fukushima nuclear power plant area, where it is difficult to collect field data, obtaining land cover classification products with high accuracy using satellite images is challenging, so it is appropriate to analyze them using primary outputs such as vegetation indices obtained from high-resolution satellite imagery. It is necessary to establish an international cooperation system for jointly utilizing satellite images. Meanwhile, to periodically monitor environmental changes in neighboring countries that may affect the Korean peninsula, it is necessary to establish utilization models and systems using high-resolution satellite images.

The Effect of COVID-19 Pandemic on University Libraries: Forced on the Perception of University Librarians (코로나 19가 대학도서관에 미치는 영향에 관한 연구 - 대학도서관 사서의 인식을 중심으로 -)

  • Chung, Jae-Young;Oh, Se-Hoon
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.32 no.3
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    • pp.93-114
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    • 2021
  • COVID-19 has been affecting the library, not to mention society as a whole. Especially, there are many changes in the role and service of the university libraries as all the classes of the universities are turned into non-face-to-face and the use of the university libraries is restricted. The changes in users' use of information and communication behavior due to COVID-19 could be an opportunity for new utilization of human and material resources the university libraries have and for the development of services. However, on the contrary, the university libraries could face another crisis if they fail to respond appropriately to current changes. Therefore, it is necessary to grasp, analyze the impact of COVID-19 and plan how to respond. A survey on the effects of COVID-19 and the response of the university libraries and the perceptions of the university libraries found that most university libraries are responding appropriately to COVID-19. However, a survey on the perceptions of the present and future of the university libraries under COVID-19 showed that many survey respondents think COVID-19 would have a negative impact on the university libraries. This means that the changes caused by COVID-19 are causing a crisis and anxiety in the university libraries. Therefore, by working hard together, the university libraries need to present the university libraries' new role, service and direction in the post-COVID-19 era as well as responding to the current situation.

A Literature Review of Traditional Fishing Instrument with Bamboo Weir in the Southern Coast of Korea Peninsula (남해안의 전통적인 수산 어로방식인 죽방렴의 문헌적 고찰)

  • Lee, Kyung-Joo;Kwon, Hojong;Jeong, Dae-Yul
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.9 no.2
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    • pp.469-480
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    • 2019
  • The purpose of this study is to enhance the cultural heritage value of the Juk-Bang-Ryeum (Bamboo Weir) and prove the originality through the review of historical literature. The main industry of Korean was agriculture and fishery from ancient. In the ancient, fishery instruments are not enough due to the lack of fishing technology. The Juk-Bang-Ryeum was considered as important national resources and asset. It give us many implications about the wisdom of our ancestors because of it's scientific principle of the structure. It is surely a cultural heritage to preserve in the future because it is considered as important community asset as well as more natural and environment oriented fishing method. In the literature, the origin of 'Juk-Bang-Ryeum' can be found as 'Eo-Ryang' or 'Bang-Ryeum'. The records on this terminology go back to the Corea Dynasty, but their documentary records are rare, and most of them are records of the Chosun Dynasty. In this study, we surveyed mainly the literature records about the southern coast region in the period of Chosun Dynasty. This study contributes for preserving the cultural assets of our ancestors who pursued eco-friendly fishery method, and it is also of great significance to produce objective data based on records for the registration of the World Record Heritage.

The Management and Quality Assurance of Higher Education Franchising: A Case Study of UK Universities (고등교육 프랜차이즈 운영 및 질 관리에 관한 연구: 영국의 사례를 중심으로)

  • Lee, Young-Whan;Kim, Ee-Gyeong
    • Korean Journal of Comparative Education
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    • v.28 no.4
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    • pp.83-106
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    • 2018
  • The purpose of this study is to analyze the management and quality assurance of higher education franchising in UK universities. Central Lancashire University, Liverpool John Moors University and London Metropolitan University were selected for the case study. The findings based on the framework consisting four areas are as follows. First, the franchising was actively pursued due to the interest of UK universities in securing student and financial resources associated with the interest of partner universities aiming at internationalization and development. Second, the field of cooperation reflected the strengths of UK universities and the needs of partner universities, while the types and degree awarding methods were diversified thanks to the autonomy given to UK universities. Third, the management system was well structured to guarantee transparent and valid operation of franchising with the intensive support of the headquarter at the beginning stage. Fourth, rigorous quality control measures were applied to provide education services of the same quality. In this process, QAA played an important guiding role. Based on these findings, we suggested policy implications for the Korean government as well as universities who are interested in franchising of higher education.

Analysis on Response System against International Maritime Terrorism : Using Analytic Hierarchy Process(AHP) Method (국제해상테러 대응체계의 우선순위 분석 : 계층적 의사결정기법(AHP)을 이용하여)

  • Oh, Tae Kon
    • International Area Studies Review
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    • v.17 no.4
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    • pp.181-202
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    • 2013
  • After the Cold War, international terrorism and related issues have been the most urgent problems. However, Korea hasn't recognized this seriousness due to relatively slight damage. Yet the interest about the international maritime terrorism and related issues is increasing as the maritime terrorism issues emerged. This is because Korea is located next to three oceans and majority of international trades depend largely on international maritime transportation due to its scarce natural resources. Therefore this study has the purpose that it reviews the advanced researches and documents, analyzes the priority about response system against international maritime terrorism, suggests the practical solutions. For these purposes, it conducted Delphi technique to international maritime terrorism experts with response system factors selected among the advanced researches and documents. As the result of analysis, this study figured out that legal and institutional countermeasures are needed as international measures, strategic countermeasures are needed as domestic measures to set up the response system against international maritime terrorism. Synthetically, for the efficient and practical counteract against international maritime terrorism, the response institute against international maritime terrorism and the awareness of relevant experts are preferentially necessary.

Operation and Process Evaluation of a Community Meal Program for the Elderly in Rural Areas during Agricultural Off-Season Perceived by Cooking Volunteers (농촌 고령자 대상 농한기 마을 공동식사 프로그램 참여 조리자원봉사자의 프로그램 운영에 대한 인식과 과정 평가)

  • Bae, Jeong-Sook;Seong, Sol-Bee;Jang, So-Mang;Yoo, Chang-Hee;Lim, Young-Suk;Lee, Young-Mi;Park, Hae-Ryun;Lee, Kyung-Eun
    • Korean Journal of Community Nutrition
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    • v.24 no.4
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    • pp.277-289
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    • 2019
  • Objectives: This study examined the practices of a community meal program for older adults in rural areas during the agricultural off-season. Methods: A survey was conducted from December 12 to December 22, 2016. Self-administered questionnaires were distributed to 150 cooking volunteers, who had participated in the community meal program in 50 villages. A total of 114 responses were returned from 44 villages and used for data analysis. In addition, in-depth interviews were conducted with the volunteers of eight villages. Results: Most of the cooking volunteers were 50 years old or older and they participated in serving older adults meals for good will. The cooking volunteers perceived that the older adults in their community did not eat various foods, had difficulties in grocery shopping, and frequently consumed salty foods. During the agricultural off-season, 40.9% of villages served the older adults meals 6-7 days a week and 95.5% provided meals for lunch. An average of 21 to 40 older adults were served meals in each village. The cooking volunteers reported that the food preparation and meal service times were sufficient, recipes provided were useful, and menus met the preference of the older adults. At the end of the program, they felt proud of serving meals for older adults in the community. An increased awareness of healthy eating, interest in health, and consumption of nutritious meals, a decrease in loneliness among older adults, and the promotion of fellowship in the community were rated highly. The cooking volunteers expected additional support for cooking personnel and insisted that the program should be provided for the entire agricultural off-seasons. Conclusions: The community meal program during the agricultural off-season for the elderly in rural areas was effective in improving the dietary life of older adults, relieving their feelings of isolation, and promoting fellowship of the community. The volunteers felt workload due to a shortage of volunteers but answered that they were rewarded by helping older adults in their community.

Characteristics of Phthalate Esters-exposed Boar Sperm during Boar Semen Storage (돼지 정액을 보관하는 동안 phthalate esters에 노출된 정자의 특성)

  • Lee, A-Sung;Lee, Sang-Hee;Lee, Seunghyung;Yang, Boo-Keun
    • Journal of Life Science
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    • v.29 no.4
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    • pp.395-401
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    • 2019
  • Phthalate is a chemical endocrine disrupter and interfere with the action of hormones, estrogens, androgens and thyroid hormones. It also affect cardiovascular, metabolic, immune and reproductive system in the human and animals. Curcumin is antioxidant, anti-inflammatory activity and -cancer properties in the human. We studied whether phthalates damage viability, mitochondrial activity and membrane integrity of sperm in boar semen. We also treated curcumin with/without phthalates in the boar semen. Fresh boar semen was treated with phthalates and/or curcumin for examining sperm characteristics. Sperm characteristics, sperm motility, viability, mitochondrial activity, and membrane integrity were determined during storage of boar semen. Sperm motility and viability in dose-dependent manner decreased by di-n-butyl phthalate (DBP), mono-n-butyl phthalate (MBP) and di-2-ethylhexyl phthalate (DEHP, p<0.05). Phthalates also decreased mitochondrial activity and membrane integrity of sperm (p<0.05). However, sperm motility and viability were higher than untreated-curcumin when DBP, MBP and DEHP treated with a curcumin in boar semen (p<0.05). Mitochondrial activity and membrane integrity of sperm were higher in DBP- and MBP-treated semen with curcumin (p<0.05). In conclusion, phthalates can damage sperm viability and quality during the boar semen storage, and curcumin may protect the boar sperms from phthalates during storage term.

The Study of the Disability Education Experience of the Mothers for their Children with Brain Lesions - Hermeneutic Grounded Theory Methodology - (중증뇌병변장애인 자녀를 둔 어머니들의 장애자녀 교육경험에 관한 연구 -해석학적 질적연구-)

  • Kang, Sun Kyung;Choi, Yoon
    • 재활복지
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    • v.20 no.4
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    • pp.79-106
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    • 2016
  • This study examined the meanings of the disability education of the mothers who reared their children with brain lesions. For this purpose, Rennie's hermeneutic grounded theory was applied and the consented 7 mothers participated in this study. With the in-depth interviews, 53 meaning units, 16 subordinate categories and 7 hermeneutic categories were classified. These 7 hermeneutic categories were 'wailing miserably everyday', 'social mobilization of the surroundings', 'straight forward', 'smash rock with the eggs', 'looking at a faraway', 'learning together' and 'subjectivation of disability education.' The experience of disabled children education process was concurrent experience of frustration and hoping that moving toward a big hope through the resignation stage, the chasing stage, the vision stage, the challenge stage, and the small achievement stage. Repetitive common patterns of behavior revealed three types: wishy-washy type, realistic-strategy type, and indomitable-challenge type. Moreover, the core category of educational experience was concluded to be 'a pedagogical process of turning despair from severe disabilities into hope through education.' Based on the analysis results, concrete intervention plans for social welfare practice were suggested to support the disabled children's lives with high quality of education.

Expression of H-ras, RLIP76 mRNA and Protein, and Angiogenic Receptors in Corpus Luteum Tissues during Estrous Cycles (난소 내 황체조직에서 발정주기별 H-Ras, RLIP76, Angiogenic Receptors mRNA와 Protein의 발현)

  • Kim, Minseong;Lee, Sang-Hee;Lee, Seunghyung
    • Korean Journal of Clinical Laboratory Science
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    • v.50 no.4
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    • pp.457-461
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    • 2018
  • Corpus luteum (CL) is a transient endocrinal tissue that undergoes repeated formation and regression during the estrous cycle. In this study, we hypothesized that the functional and structural mechanism of angiogenesis is similar between CL and tumor formation. First, we measured mRNA and protein expression of angiogenic receptors (vascular endothelial growth factor receptor-2, VEGFR2; Tie 2) in the early, middle, and late phase CL tissues during the estrous cycle. Ral-interacting protein of 76 kDa (RLIP76) and H-ras mRNA and protein were also expressed in the CL tissues. VEGFR2 and Tie 2 mRNA and protein were expressed in the early and middle phase CLs and decreased in the late phase. H-ras mRNA and protein were expressed in the early and middle phase CLs, but not in the late phase. RLIP76 mRNA was expressed in all phase CLs, and the protein expression was highest in early phase CLs. We suggest that RLIP76 and H-ras, an oncogenic gene, regulate the function of the CL during the estrous cycle, and the proteins will play an important role in the angiogenic mechanism of the CL.

A Comparison between Korean and English News Editorials with Focus on U.S.-North Korea Summit Based on Expressive Language (언어표현 기반의 북미 정상회담에 관한 한미 신문사설의 비교)

  • Noh, Bokyung;Ban, Hyun
    • The Journal of the Convergence on Culture Technology
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    • v.5 no.3
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    • pp.125-130
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    • 2019
  • This research is about alternative measure of main components for sprinkler system like automatic wet pipe sprinkler system, dry pipe sprinkler system, pre-action sprinkler system, vacuum sprinkler system, deluge sprinkler system, and so on. By replacing the alarm check valve, dry valve, pre-operated valve, and deluge open valve with a solenoid valve, it be can be simplifed the various processes of the manufacturing process into one process, it creates an environment in which one standardized product can be produced simultaneously on a single machine. Therefore, it could improve the price competitiveness of products, reduce the maintenance cost, and help the adaptability of new sprinkler systems in the future. There is a benefit when it comes to apply to sprinkler system. Only replace the valve which is used to control primary and secondary valve such as wet, dry, pre operated, vacuum, deluge system valve. Other components such as retarding chambers, automatic air compressors, accelerators or adjusters, supervisory panels, vacuum pumps, and manual starters can be used as they are, so they can be easily applied to existing sprinkler system. It is needed to legal and institutional study for solenoid valve applied sprinkler system to commercialize.