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김진재,임현우,김성범 한국이벤트컨벤션학회 2022 이벤트 컨벤션 연구 Vol.18 No.3
Purpose – The purpose of this study is to suggest a systematic framework of determining suitable locations for camping sites using closed schools in Korea. This is achieved by the following procedures. Design, data, and methodology –First, the relative importance for each locations factor the was derived using Analytical Hierarchy Process (AHP). The distance criteria for each location factor was established using the Geographic Information System (GIS). Then the location measure for each candidate site is calculated as a weighted sum of the location factors and their corresponding relative importances. Next, the derived results were visualized in a map using spatial interpolation method in GIS. Result and Conclusions–The candidate sites with relatively high scores were classified into natural (stream & mountain) and urban types to discuss the location specific development plans.
파빌리온의 경량화 구축 특성에 관한 연구 - MoMa P.S.1 젊은 건축가 프로그램(YAP)의 우승작을 중심으로 -
김진재,전유창,김성욱 한국교육시설학회 2019 敎育施設 Vol.26 No.6
This study embody the investigation of the winner projects of Young Architecture Program(YAP) taken place annually at front yard of MoMA PS1 since 1998. Every installation of project is experimental exhibition that have ambiguous border in the area between lightness and architecture. Thus the design have less limits as architectural space and talents can express the innovative idea strong. This paper aims to probe annual significant key words by analyzing the contemporary representative space types, materials, fabrication methods and innovative ideas, and to identify the changes of important concept of lightness and recent trend in architect design concept.
생활물류 서비스의 지역적 형평성 고려를 위한 서비스이용 취약지역 분류에 관한 연구
김진재,남대식,장소영 한국로지스틱스학회 2023 로지스틱스연구 Vol.31 No.6
In the past decade, the last-mile market within the logistics industry has witnessed an unprecedented growth of nearly 100% in the last five years. Gradually recognized as “Customer logistics,” the last-mile market is now considered an essential part of the urban service, leading to the recent implementation of the Last-mile Logistics Service Act. Despite the increasing interest and significance, there are not much thorough researches and studies yet done in this customer logistics field. This research aims to address this gap by designing a predictive model based on real parcel delivery data. By comparing and analyzing the model against actual data, the study classifies 229 administrative regions (municipalities) in Korea into four distinct types. Through this approach, the research provides a framework for analyzing under-served areas in the customer logistics that takes into account various social factors (economy, population, etc.), beyond the traditional papers which focused on geographical factors such as remote areas. The analysis of the predictive model reveals that around 50% of metropolitan cities exhibit lower levels of customer logistics compared to the predicted quantities. Even in highly developed cities like Seoul, there is a likeliness of being an under-served area in approximately 20% of 25 districts. Furthermore, 77% of regions, previously classified as delivery service vulnerable areas (rural areas), are identified as under-served areas. Additionally, it is observed that the actual volume of deliveries in remote areas, particularly in rural and mountainous regions, is insufficient. Thus, resolving the unequal distribution of logistics services between regions requires a comprehensive consideration of multiple factors.
서해로 유입되는 독립하천의 어류상과 수생태계 건강성 평가: 전남과 전북을 대상으로
김진재,주현수 한국환경생물학회 2017 환경생물 : 환경생물학회지 Vol.35 No.4
본 연구는 서해로 유입되는 전남과 전북의 24개 독립하 천들을 대상으로 2016년 3월부터 10월까지 어류상을 조사 하고, 생물 및 비생물 평가지수 (BAc index)를 선정하여 수 생태계 건강성 평가를 실시하였다. 출현 어류는 총 18과 44 속 59종 4,127개체가 확인되었다. 우점종은 피라미 (Zacco platypus)로 확인되었다. 한국고유종은 각시붕어 (Rhodeus uyekii) 등 12종이었다. BAc index는 통계적으로 유의한 (p< 0.01 또는 0.05) 상관관계가 확인되었다. 수생태계 건강성 평가의 단계별 분포는 보통 단계 (Fair)가 41.7%로 가장 높 은 비율을 나타냈다. 양호 단계 (Good)와 불량 단계 (Poor)는 20.8%, 최적 단계 (Excellent)는 16.7%로 각각 나타났다. 독 립하천의 수생태계 건강성은 생물학적 평가지수보다 지형적 특성, 인위적·자연적 제한 요소에 따른 비생물학적 평가지 수의 영향을 더 받는 것으로 확인되었다. In this study, the fauna of freshwater fish were investigated from March until October of 2016 in 24 independent streams in the Jeonnam and Jeonbuk provinces, which were flowing into the Yellow Sea. The health of the aquatic ecosystem in those streams was assessed through the biological and abiological character index (BAc index). During the surveyed period, a total of 4,127 individuals were collected; they belonged to 59 species of 44 genera in 18 families. The most dominant species identified was Zacco platypus, and 12 species were endemic species of Korea, including Rhodeus uyekii. The BAc index indicated a statistically significant correlation (p<0.01 or 0.05). The stage distribution of the aquatic ecosystem health assessment showed the highest rating of 41.7% at the “Fair” stage. The “Good” and “Poor” stages accounted for 20.8% while the “Excellent” stage took up 16.7%. It has been confirmed that the aquatic ecosystem health of independent streams is influenced more by the abiological character index as a consequence of geographical characteristics and artificial/natural limiting factors, than by the biological character index.
[특별세션]DIC 액압벌지실험을 이용한 순 티타늄 판재의 소성유동곡선에 관한 연구
김진재(Jinjae Kim),김영석(Youngsuk Kim),권성진(Seongjin Kwon) 한국자동차공학회 2016 한국자동차공학회 부문종합 학술대회 Vol.2016 No.5
In this paper, the plastic flow curve of commercially pure titanium sheet (CP Ti) has been evaluated using Tensile test and Hydraulic bulge test. The plastic flow curve known as hardening curve is a key on factor needed in conducting finite element analysis for the forming process of sheet material. However, several sheet forming processes lead to the large plastic deformation of which the plastic strain is over the maximum uniform elongation of uniaxial tensile test, for instance, clinch forming, hydroforming, stamping and deep drawing. Therefore, we have performed tensile and a hydraulic bulge test for CP Ti sheet. We also have used and evaluated three method that convert from hydraulic bulge flow curve to tensile flow curve. The measured true flow curve from the hydraulic bulge test can be fitted well by the hardening equation known as Kim-Tuan model.