• Parasites, Hosts and Diseases
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• 제57권6호
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• pp.587-593
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• 2019

Excavation (2008-2014) carried out under the Uffizi Gallery (Florence, Italy) led to the discovery of 75 individuals, mostly buried in multiple graves. Based on Roman minted coins, the graves were preliminarily dated between the second half of the 4th and the beginning of the 5th centuries CE. Taphonomy showed that this was an emergency burial site associated with a catastrophic event, possibly an epidemic of unknown etiology with high mortality rates. In this perspective, paleoparasitological investigations were performed on 18 individuals exhumed from 9 multiple graves to assess the burden of gastrointestinal parasitism. Five out of eighteen individuals (27.7%) tested positive for ascarid-type remains; these are considered as "decorticated" Ascaris eggs, which have lost their outer mammillated coat. Roundworms (genus Ascaris) commonly infest human populations under dire sanitary conditions. Archaeological and historical evidence indicates that Florentia suffered a period of economic crisis between the end of 4th and the beginning of the 5th centuries CE, and that the aqueduct was severely damaged at the beginning of the 4th century CE, possibly during the siege of the Goths (406 CE). It is more than plausible that the epidemic, possibly coupled with the disruption of the aqueduct, deeply affected the living conditions of these individuals. A 27.7% frequency suggests that ascariasis was widespread in this population. This investigation exemplifies how paleoparasitological information can be retrieved from the analysis of sediments sampled in cemeteries, thus allowing a better assessment of the varying frequency of parasitic infections among ancient populations.

• 한국농공학회논문집
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• 제61권3호
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• pp.77-88
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• 2019

Drought is the recurrent natural disasters which harshly affect agricultural production and society in various parts in Bangladesh. Information on the spatiotemporal variability of drought events plays a vital role to take necessary action towards drought mitigation and sustainable development. This study aims to analyze the spatial and temporal variation of meteorological drought in Bangladesh during 1981-2015 using Effective Drought Index (EDI). Monthly precipitation data for 36 years (1980-2015) were obtained from 27 meteorological stations. Drought frequency (DF) and areal extent of drought were considered to investigate the spatiotemporal structure of drought. The DF analysis showed that the northern, southwestern and central regions of the country are comparatively vulnerable to meteorological drought. The frequency of drought in all categories has considerably increased during the recent five years from 2011 to 2015. Furthermore, the most significant increasing trend of the drought-affected area was found over the central region especially for pre-monsoon (March-May) season during this period while the decreasing trend of the affected area was found within the eastern region during the study period. To prevent and mitigate the damages of drought disasters in Bangladesh, agricultural and government managers should pay more attention to those regional drought events that occur in pre-monsoon season. The outcome of the present study can be used as explanatory data in building the strategies to drought monitoring and mitigation activities in Bangladesh.

• 복식문화연구
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• 제15권4호
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• pp.661-676
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• 2007

The purpose of this study was to investigate the periodical change of Korean children's clothing from 1960 to 2000. As valuable historical data, 794 children's clothing in wedding pictures in these periods were collected for this study. Research method was content analysis and frequency, cross table analysis, and ${\chi}^2$ test were conducted for data analysis. The results of this study were as follows. The children's clothing in 1960s had very humdrum and limited design and plain pattern. And most of children in this period wore Western clothes of casual style. In 1970s, children's clothing was enriched in terms of design, pattern, color and ornament. However, clothing design for children was not developed yet, so form of children's clothing in this period was showed as duplication of adult clothing design. In 1980s, The children's clothing was developed with enhancement of the level of living. Various style and sophisticated design were appeared and design and size system for children were developed. With increasement of social interest of leisure and sports, casual style was especially popular in this period for both of children and adult in this period. In 1990, rapid decrease of birth rate resulted in parents' excessive interest and investment for their children. In this effects, children's clothing in 1990s had luxury, various, and individual characteristics.

• 한국기록관리학회지
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• 제18권4호
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• pp.183-204
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• 2018

본 연구의 목적은 『한국기록관리학회지』에 게재된 논문의 연구 주제를 분석하는 것이다. 연구 목적을 달성하기 위하여 해당 학회지의 창간호(2001년)부터 최근(2017년)까지 발표된 논문 390편을 대상으로 해당 논문의 저자가 부여한 한글 키워드 875개를 수집하였다. 수집된 키워드는 NetMiner V.4를 이용하여 이들 연구 주제의 양적측면, 영향력 측면, 그리고 확장성 측면을 분석하였다. 분석 결과 연구 주제의 양적인 측면에서는 '기록정보서비스', '전자기록물', '역사기록물', '아키비스트', '국가기록원' 순으로 나타났고, 영향력 측면에서는 '기록정보서비스', '전자기록물', '평가', '지역기록물', '검색시스템' 등의 순으로 나타났고, 확장성 측면에서는 '기록정보서비스', '아키비스트', '전자기록물', '아카이브', '메타데이터'등의 순으로 파악되었다.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2023년도 학술발표회
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• pp.163-163
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• 2023

Flooding has become an increasing event which is one of the major natural disasters responsible for direct economic damage in South Korea. Driven by climate change, precipitation extremes play significant role on the flood damage and its further increase is expected to exacerbate the socioeconomic impact in the country. However, the empirical evidence associating changes in precipitation extremes to the historical flood damage is limited. Thus, there is a need to assess the causal relationship between changes in precipitation extremes and flood damage, especially in agricultural region like Chungcheong region in South Korea. The spatial and temporal changes of precipitation extremes from 10 synoptic stations based on daily precipitation data were analyzed using the ClimPACT2 tool and Mann-Kendall test. The four precipitation extreme indices consisting of consecutive wet days (CWD), number of very heavy precipitation wet days (R30 mm), maximum 1-day precipitation amount (Rx1day), and simple daily precipitation intensity (SDII), which represent changes in intensity, frequency, and duration, respectively, and the time series data on flooded area and flood damage from 1985 to 2020 were used to investigate the causal relationship in the ARDL-ECM framework and pairwise Granger causality analysis. The trend results showed that majority of the precipitation indices indicated positive trends, however, CWD showed no significant changes. ARDL-ECM framework showed that there was a long-run relationship among the variables. Further analysis on the empirical results showed that flooded area and Rx1day have significant positive impacts on the flood damage in both short and long-runs while R30 mm only indicated significant positive impact in the short-run, both in the current period, which implies that an increase in flooded area, Rx1day, and R30 mm will cause an increase in the flood damage. The pairwise Granger analysis showed unidirectional causality from the flooded area, R30 mm, Rx1day, and SDII to flood damage. Thus, these precipitation indices could be useful as indicators of pluvial flood damage in Chungcheong region of South Korea.

• 한국지형학회지
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• 제28권3호
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• pp.37-49
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• 2021

Analysis and prediction of storm surges are very important because the global warming has raised sea levels and increased the frequency of massive typhoons, accelerating damage of coastal flooding. However, the data for storm surge prediction is lacking due to the short history of observation in South Korea. The purpose of this study is to investigate the spatial and temporal characteristics of the previous surges and tsunamis based on the historical documents published during the Joseon Dynasty. In addition, we tried to evaluate the damage and spatial extent of such disasters, using the expressions about surge records including heights and number of administrative divisions. As a result, a total of 175 records of surges and tsunamis were compiled from 1392 to 1910: 145 events were extracted through the analysis of the ancient documents, and 30 events were from the previous research. Most of the strorm surges occurred along the west coast during summer season. More than half of the total surges were concentrated for 120 years from the mid 1600s to the mid 1700s, which was estimated to be highly relevant to the climate conditions in East Asia during the Little Ice Age. Hazardous areas by storm and tidal surges were also extracted, including Asan, Ganghwa, and Siheung during the Joseon Dyanisity period.

• 한국지형학회지
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• 제27권2호
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• pp.65-80
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• 2020

This paper deals with risk assessment of life in a landslide-prone area by a GIS-based modeling method. Landslide susceptibility maps can provide a probability of landslide prone areas to mitigate or proper control this problems and to take any development plan and disaster management. A landslide inventory map of the study area was prepared based on past historical information and aerial photography analysis. A total of 550 landslides have been counted at the whole study area. The extracted landslides were randomly selected and divided into two different groups, 50% of the landslides were used for model calibration and the other were used for validation purpose. Eleven causative factors (continuous and thematic) such as slope, aspect, curvature, topographic wetness index, elevation, forest type, forest crown density, geology, land-use, soil drainage, and soil texture were used in hazard analysis. The correlation between landslides and these factors, pixels were divided into several classes and frequency ratio was also extracted. Eventually, a landslide susceptibility map was constructed using a logistic regression model based on entire events. Moreover, the landslide susceptibility map was plotted with a receiver operating characteristic (ROC) curve and calculated the area under the curve (AUC) and tried to extract a success rate curve. Based on the results, logistic regression produced an 85.18% accuracy, so we believed that the model was reliable and acceptable for the landslide susceptibility analysis on the study area. In addition, for risk assessment, vulnerability scale were added for social thematic data layer. The study area predictive landslide affected pixels 2,000 and 5,000 were also calculated for making a probability table. In final calculation, the 2,000 predictive landslide affected pixels were assumed to run. The total population causalities were estimated as 7.75 person that was relatively close to the actual number published in Korean Annual Disaster Report, 2006.

• 한국콘텐츠학회논문지
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• 제20권7호
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• pp.585-593
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• 2020

본 연구는 전주 한옥마을 관광객들의 선택속성에 관한 연구를 수행하였다. 전주 한옥마을 방문 시에 중요하게 생각하는 중요도와 방문 후 만족도를 IPA 분석을 활용하여 연구하고, 이에 따른 결과와 마케팅적 시사점을 제공하였다. 설문 조사는 2018년 10월 초부터 11월 말까지 일대일 방식으로 진행하였고, 총 300부를 배포하였으며, 불성실하게 응답한 설문지 42부를 제외한 총 258부를 유효표본으로 활용하였다. 본 연구의 유효표본에 대한 분석은 SPSS for Window Version 15.0 프로그램을 이용하여 분석하였다. 표본의 일반적인 사항은 빈도분석(Frequency Analysis)을 실시하여 표본의 특성을 파악하였고 대응표본 T 검정(Paired Sample T-test)을 활용하여 연구하였다. 연구의 결과는 첫째, 선택속성 중에 관광지의 청결성이 가장 높았고, 그다음 순위는 주차장 시설, 자연경관, 음식·먹거리, 기후(날씨)순으로 나타났다. 둘째, 한옥마을을 방문하는 관광객들이 만족한 선택속성 항목은 자연경관이 가장 만족한 것으로 나타났고, 기후(날씨), 지역의 특색, 역사문화자원, 관광지 청결 순으로 조사되었다. 셋째, 한옥마을을 방문하는 관광객들이 지각하는 선택속성 변수의 중요도-만족도 값의 사분면 위치에 따라서 한옥마을의 다양한 프로그램 개발과 관광객의 만족도를 올리기 위한 방안 마련이 필요할 것으로 판단된다.

• 헤리티지:역사와 과학
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• 제50권1호
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• pp.58-77
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• 2017

본 연구는 경관적 가치와 조망여부를 정량적으로 다루는 시지각강도(視知覺强度)라는 지표를 도입하여 명승 지정구역 설정의 가능성과 효과를 검토하였다. 연구결과는 다음과 같다. 첫째, 명승 지정구역 설정을 위한 시지각강도 지표를 제시하였다. 조망지점에서 대상과의 거리, 입사각을 고려하여 시지각강도의 지표를 적용하였다. 또한 시지각강도 분석과정을 GIS로 구현하였으며 분석 알고리즘을 개발하였다. 둘째, 누적가시도의 단순빈도와 시지각강도 결과를 비교하여 시지각강도의 가능성을 규명하였다. 시지각강도는 4.74km이내 지역에서 조망지점과 대상과의 거리보다는 입사각에 많은 영향을 받는 것으로 밝혀졌다. 셋째, 시지각강도의 결과를 토대로 현장 조사를 실시하여 사람의 시지각을 충분히 반영하는지를 검증하였다. 실제 시지각강도가 높은 지역이 현장조사를 통해서도 중요한 지역임이 확인되었다. 넷째, 기 지정된 명승에 경관 시지각강도를 도입하여 지정구역 조정가능성을 검토하였다. 시지각강도를 3등급으로 분류한 결과, 2등급 이상은 문화재 지정구역, 3등급은 역사문화환경보존지역으로 설정이 가능할 것으로 보인다.

• 한국수자원학회논문집
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• 제55권4호
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• pp.279-289
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• 2022

기후변화로 집중호우의 강도가 증가함에 따라 하천에서 기왕의 관측 자료가 없는 고수위가 관측되고 있다. 수위-유량 관계 곡선식은 기왕 관측 자료를 바탕으로 수위를 유량으로 환산하기 때문에 관측 자료가 부족한 경우, 유량 자료 생산에 있어서 불확실성이 커지고 정확성이 떨어지게 된다. 부족한 자료를 보완하고 유량자료의 정확성을 높이기 위하여 본 연구에서는 1차원 수치해석 모형을 기반으로 한 Monte Carlo 모의를 이용하여 대상 지역의 유량을 수리학적으로 추정하는 방법을 제시하였다. 기존에 작성되어있는 수위-유량 관계곡선식을 바탕으로 경사, 조도계수, 하폭 등의 영향을 받는 계수와 흐름의 조건에 따라 영향을 받는 지수를 난수로 발생시켜 다수의 가상 곡선식을 생성하였다. 가상의 곡선식과 주요지점의 관측수위를 활용한 수치모의 결과를 비교하여 홍수위의 재현성이 좋은 최적 샘플의 곡선식을 상류 경계 지점의 곡선식으로 선정하였다. 제안한 방법론을 섬진강 요천 합류부를 대상으로 적용하였으며, 그 결과 수위 재현성이 큰 폭으로 개선된 것을 확인하였다. 또한, 제안한 방법론의 적용 시 해당 샘플의 수리해석 결과를 바탕으로 모의단면의 수위와 유량을 수리학적으로 추정할 수 있다는 장점이 있다.