• Proceedings of the Korean Society of Computer Information Conference
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• 2023.07a
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• pp.359-361
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• 2023

관광산업은 뉴 노멀(New Normal) 시대에 언택트에서 온택트(On-tact)형식의 메타버스(Metaverse)로의 새로운 관광 패러다임 전환을 맞이하고 있다. 이에 이 연구는 뉴 노멀 시대에 직면하여 관광산업의 변화방향에 대한 문제의식을 가지고서 지역의 관광활성화 방안 중에서도 체류형 지역 관광 활성화를 위한 방안으로 메타버스를 활용한 관광 홍보마케팅에 대한 효율적인 방안들에 대해 제안한다.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2000.05a
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• pp.99-101
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• 2000

본 연구에서는 교외지역인 전남 나주에 소재한 동신대학교 1공학관 주변의 환경 대기중의 VOC중 벤젠을 계절별로 그 농도를 비교해 보았다. 그 결과 첫째, 벤젠과 톨루엔의 계절별 농도 평균값이 봄(늦봄), 여름, 가을 순으로 농도가 높게 나타나 온도에 상대적으로 많은 영향이 있음을 알 수 있었다. 둘째, 나주지역의 벤젠농도가 여천지역이나 서울지역에 비해 봄에 8배, 3배 그리고 여름철에 14배, 5배 정도로 각각 낮게 나타나 나주 지역이 비교적 청정지역임을 알 수 있었다.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.57 no.3
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• pp.209-214
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• 2012

Indigo crop, Persicaria tinctoria H. Gross is an annual plant containing natural colorant, the blue dye indigo, and local cultivars had been cultivated to produce natural indigo for textile dyeing in Korea since ancient times. Naju No. 2 is a new mass-selected line from the mother population, Naju Local cultivar. In this study, two breeding lines of Naju Local and Naju No. 2, have been cultivated in four different locations, the South regions of Korea, to compare plant growth and yield characteristics between two lines. Naju No. 2 was higher in plant height, and Naju Local has more 1st branches. Naju No. 2 has larger leaf area and higher width/length ratio of leaf, showing the round leaf type as morphological stable character without regional differences. Though there was considerable regional variation in fresh and dry top weight of harvested plant, the significant difference of plant weight between two lines were not shown. The ratio of leaf to total shoot of dry weight of Naju No. 2 was higher than one of Naju Local, indicating that Naju No. 2 has better yielding of colorant which is synthesized mostly in leaf. Naju No. 2 contained more Niram (crude indigo extract) and indigo, and showed much blueness at dyeing of silk using fresh leaves than Naju Local. We concluded that a new line, Naju No. 2 could be a superior cultivar due to having higher leaf yield and better quality of natural colorant than Naju local cultivar.

• Proceedings of the Korea Water Resources Association Conference
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• 2008.05a
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• pp.2254-2257
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• 2008

홍수와 가뭄, 수질오염 등의 피해에 대한 대책과 보다 효율적인 수자원 관리를 위해서 원자료에 대한 분석이 선행되어야 한다. 따라서 본 연구에서는 나주지점을 대상으로 하여 총유기탄소(Total Organic Carbon: TOC) 자료와 유출량 자료를 수집하였으며, 각 자료에 대하여 상세한 주기성분을 파악하기 위하여 웨이블렛 변환을 적용하였다. 대상지점으로 선정한 나주지점은 전라남도 나주시 나주대교 상류에 위치하고 있으며, 유역면적이 $2,0587.2km^2$이며, 유로 연장은 65.5km이다. 유출량과 수질자료의 주기성 분석을 위해 유기물의 양을 나타내는 수질지표인 TOC와 나주수위관측소에서 관측된 2003년${\sim}$2004년의 시수위자료를 유출량으로 환산한 값을 사용하였으며, 이 자료의 상세한 주기성 파악을 위해 웨이블렛 변환을 사용하였다. 일반적으로 주기성을 파악하기 위하여 푸리에 변환을 사용하지만, 푸리에 변환은 시간정보와 주파수를 동시에 파악할 수 없을 뿐만 아니라, 자료에 불연속성과 고주파수 성분이 포함될 경우 분석이 난이하다. 이러한 푸리에 변환의 단점을 보안한 것이 웨이블렛 변환이며, 푸리에 변환보다 계산속도가 빠르다. 또한 주어진 자료에 대하여 시간과 주파수 영역에서 동시에 파악하는 것이 가능하며, 불규칙한 자료를 평탄하게 함으로서 보다 상세한 주기성을 찾아낼 수 있다. 따라서 본 연구에서 추출한 각 자료의 상세 주기성분들은 향후 수자원 관리를 위한 기초자료로 활용될 수 있을 것으로 기대된다.

• Proceedings of the Korea Water Resources Association Conference
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• 2020.06a
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• pp.396-396
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• 2020

기후변화는 여러 수자원 문제를 야기하며, 특히 가뭄으로 인해 농업용 저수지의 물관리는 점점 중요해지고 있다. 여러 둑높이기 농업용 저수지 중 나주호는 수혜면적에 비해 유역면적이 작아 저수율관리에 어려움을 겪고 있다. 실제로 2017년과 2018년 가뭄이 발생함에 따라 저수율이 20 %까지 저하되었으며, 수혜구역내 간이 양수장, 양수 저류 등 가뭄대책이 시행되었다. 그럼에도 불구하고 나주호의 저수율이 회복되지 않아 단수를 실시하는 등 물관리에 어려움을 겪었다. 이 연구에서는 저수지인 나주호를 대상으로 기상자료, 나주호의 저수율, 공급량 자료를 바탕으로 CAT 모형을 적용 가뭄년도의 유입량 변화를 추정하였다. 검보정의 경우 CAT 3.0 버전에 포함된 SCE-UA 최적화기법을 이용하였다. 그 결과, 2008년부터 2019년까지의 평균 연간 유입량은 6,549 만㎥으로 분석되었으며, 평균 연간 유출율은 48 %로 조사되었다. 하지만, 가뭄이 발생하였던 2017년도의 경우 평균 연간 유입량이 2,070 만㎥, 유출율은 27 %로 조사되었다.

• Mood & Emotion
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• v.16 no.3
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• pp.152-157
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• 2018

Objectives : The purpose of this study was to examine psychosocial factors influencing suicidal ideation of community dwelling elderly, using the senior community center in Jeonnam Province. Methods : A total of 2,202 subjects (369 males, 1,833 females) were recruited. We evaluated sociodemographic factors, using a self-reporting questionnaire. Subjects completed the Geriatric Depression Scale-Short Form Korean Version (SGDS), Multi-dimensional Scale of Perceived Social Support (MSPSS), Korean version of the General Health Questionale-12 (GHQ-12) and Satisfaction with Life scale (SWLS), to assess psychosocial factors affecting suicidal ideation. Results : Among 2,202 subjects, 179 (8.1%) reported recent suicidal ideation. Self-perceptive health status (p<0.001) and physical disease (p=0.002) revealed differences between two groups. The scores of four scales in the suicidal group were significantly different from the control group: SGDS (p<0.001) and GHQ-12 (p<0.001) were higher, while MSPSS (p<0.001) and SWLS (p<0.001) were lower, in the suicidal ideation group than the control group. Multivariate logistic regression analysis revealed that physical disease (OR 2.575, 95%CI 1.022-6.492), SGDS (OR 1.181, 95%CI 1.120-1.246) and GHQ-12 (OR 1.192, 95%CI 1.108-1.283), were significantly associated with suicidal ideation. Conclusion : Findings support that physical disease, depression, and general mental health may correlate to suicidal ideation in the elderly.

• Mood & Emotion
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• v.16 no.3
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• pp.158-162
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• 2018

Objectives : The purpose of this study was to examine psychosocial factors related to burnout of social welfare officers working in Jeonnam Province. Methods : A total of 395 social welfare officers (male 99, female 296) working in 22 areas of Jeollanam-do province, were subjects of this study. We examined socio-demographic factors, using a self-reporting questionnaire. Subjects were asked to complete the Maslach Burnout Inventory-General Survey (MBI-GS), Center for Epidemiological Studies Depression Scale (CES-D), Perceived Stress Scale (PSS), and the Generalized Self-Efficacy Scale (GSS), to assess psychosocial factors affecting to burnout of social welfare officers. Results : Among 395 subjects, 221 (55.9%) reported recent experiences of burnout. There was no significant difference in age between two groups, divided by burnout. Sex (p<0.001), rank (p=0.003), working period (p=0.034), depression (p<0.001) revealed differences between the burnout group and control group. Scores of PSS (p<0.001) were higher, while the scores of GSS (p<0.001) were lower in the burnout group, than control group. Multivariate logistic regression analysis revealed that female (OR 2.840, 95%CI 1.466-5.504, p=0.002), depressive high-risk group (OR 6.824, 95%CI 2.893-16.096, p<0.001) PSS (OR 1.247, 95%CI 1.153-1.349, p<0.001) and GSS (OR 0.950, 95%CI 0.930-0.971, p<0.001), were significantly associated with burnout. Conclusion : We found that some factors, were associated with experienced burnout in social welfare officers. Depressive symptoms were the strongest associative factor, for burnout in public servants in charge of social welfare. Sex, stress and self-efficacy also correlated with burnout, and especially self-efficacy was a protecting factor.

• Journal of the Korean earth science society
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• v.21 no.2
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• pp.168-173
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• 2000

To investigate the characteristics of tides in the Naju Lake and Youngsan River, we measured the water level at the Naju Lake for one month (from 30 Dec. 1997 to 27 Jan. 1998) and at several points along the Youngsan River. We found that there are predominant waves with periods of semidiurnal and diurnal tides. The amplitudes of M$_2$, S$_2$, O$_1$ and K$_1$ calculated by harmonic analysis are 0.56, 0.39, 0.48,0.43mm, respectively. The tidal ranges along the Youngsan River, which are almost coincident with the tidal variation of Mokpo, are from 4mm to 18mm depending upon the locations and the direction and that of six-hours period in the north-south direction.

• Journal of the Korean Association of Geographic Information Studies
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• v.26 no.1
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• pp.114-131
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• 2023

The study empirically delves into the longitudinal transition of the urban core of Naju City in Korea. For the purpose, the ASA (Angular Segment Analysis) technique of Space Syntax has been adopted to investigate the cadastral maps on the GIS platform for the five chosen years since 1920. In particular, the global integration map as well as box plot statistics have been used to capture the time-series consequences. The findings indicate that the old downtown is no more a monocentric city core and the center of the City has far moved eastward near the new Gwangju-Jeonam Innovation City especially during the period between 2000 and 2020.

• Journal of Sericultural and Entomological Science
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• v.19 no.1
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• pp.25-32
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• 1977

The flacherie (FV) and Ina-flacherie (Ina-FV, named arbitarily) viruses of the silkworm, Bombyx mori was isolated from infectious larvae. Two types of infectious particles were purified by sucrose density gradient centrifugation. Some properties of the purified particles were investigated. Electron micrographs showed that FV and Ina-FV were spherical particles with diameters of 27nm and 20nm, respectively. The sedimentation coefficient of Ina-FV was 80S.