전 세계적으로 ‘지구환경 보호운동’과 웰빙 삶이 확산되면서 환경과 인체에 부정적인 영향을 미치고 있고, 특히 합성섬유의 주원료인 원유가 멀지 않은 장래에 고갈될 것을 예상하고 있으며, 이에 대한 대안으로 새로운 천연섬유 소재의 창출에 대한 연구가 활발하게 진행되고 있다. 따라서 본 연구는 천연섬유의 주산지가 될 수 있는 자연 환경적 요소를 갖추고있는 캄보디아 천연섬유 작물 현황을 조사하여 추후 한국 농산업체의 천연섬유 생산에 대한 투자를 대비한 정보를 제공하고자 조사 연구하였던 바 결과를 요약하면 다음과 같다. 1. 현재 캄보디아의 천연섬유산업은 소규모로 아직 초기 단계에 있으며, 조사된 황마, 부레옥잠 등 열대식물도 있지만, 왕골, 갈대, 목화 등 온대지역에 자생하는 천연섬유 등 12가지 작물이 대표적인 천연섬유 작물로 조사되었다. 2. 누에를 이용한 실크산업은 캄보디아의 저렴한 노동임금으로 부가가치 창출이 쉬운 산업으로 캄보디아 정부에서 활성화 길을 모색하고 있으나, 기술력 향상을 위한 인력양성이 가장 큰 문제점으로 대두되고 있다. 3. 목화를 이용한 천연섬유 생산은 대단위 노동집약적 산업으로 수출활로의 전망은 좋으나 주로 북부지역이 주 생산지로 인구밀도가 적은 농촌지역에서 활성화시키는데 한계점이 있는것으로 나타났다. 4. 캄보디아의 열대성기후와 정부의 지원, 세계의 천연섬유산업의 트렌드와 더불어 천연섬유 분야의 전문가 양성과 해외 투자자유치, 섬유생산기술 발전 등을 동반한다면 캄보디아는 새로운 천연섬유생산기지로 발전 가능성이 있는 것으로 조사되었다.

Sloan-Kettering virus gene product of a cellular pro-oncogene c-Ski is an unique nuclear pro-onco protein and belongs to the Ski/Sno proto-oncogene family. Ski plays multiple roles in a variety of cell types, it can induce both oncogenic transformation and terminal muscle differentiation when expressed at high levels. Ski protein is implicated in proliferation/differentiation in a variety of cells. The alternative fate of granulosa cells other than apoptosis is to differentiate to luteal cells, however, it is unknown whether Ski is expressed and has a role in granulosa cells undergoing luteinization. Thus, the aim of this study was, by means of immunohistochemical methods, to locate Ski protein in the rat ovaries during ovulation and corpora lutea(CL) formation to predict the possible involvement of Ski in luteinization. In addition, to examine whether the initiation of luteinization with luteinizing hormone(LH) directly regulates expression of Ski in the luteinized granulosa and luteal cells after ovulation by in vivo models. In order to examine the expression pattern of Ski protein along with the progress of luteinization, follicular growth was induced by administration of equine chorionic gonadtropin to immature female rat, and luteinization was induced by human chorionic gonadtropin treatment to mimic luteinizing hormone(LH) surge. While no Ski-positive granulosa cells were present in preovulatory follicle, Ski protein expression was induced in response to LH surge, and was maintained after the formation of corpus luteum(CL). These results indicate that Ski is profoundly expressed in the luteinized granulosa cells and luteal cells of CL during luteinization, and suggest that Ski may play a role in luteinization of granulosa cells.

12주간의 복합운동프로그램이 노인의 스트레스와 자율 신경계 활성도에 미치는 영향을 규명하는데 있다. 방법: 연구대상자들은 65∼75세의 노인 14명으로 7명의 노인을 대상으로 복합 운동프로그램을 7명의 노인을 대 상으로 걷기 운동을 12주 동안 주 2회 실시하였다. 중재를 실시하기 전과 12주 후의 평가 결과를 분석하였다. 자 료 분석 방법은 SPSS 23.0 프로그램을 이용하여 t-검정, 반복측정 분산분석으로 분석하였다. 결과: 복합 운동프로 그램 그룹의 경우 12주 후 스트레스 저항도와 전체 자율신경 활성도에서 유의한 증가를 보였다. 비록 지각된 스 트레스와 신체수행능력 점수에서 대조군과 유이한 차이를 보이지 않았지만 복합 운동프로그램 그룹에서 중재 후 유의한 개선을 보여 긍정적인 양상을 볼 수 있었다. 결론: 이러한 연구결과를 통해 노인들의 자율 신경계 활성도 를 높여 심혈관계 질환을 예방하기 위한 운동 프로그램으로 복합 운동 프로그램을 제안한다.

Fog can have severe impacts on human life (e.g., accidents in transportation systems) because it causes low visibility. Areas prone to fog near the sea or a river require accurate fog forecasts. In this study, we analyzed the characteristics of fog occurrence around Gumi Reservoir, a part of the inland Nakdong River. We also simulated and predicted visibility using the Weather Research and Forecasting (WRF) model. Visibility was estimated using several point measurements and several different methods: Stoelinga and Warner (SW99), Rapid Update Cycle (RUC), the Forecast System Laboratory (FSL), Decision Tree (DT), revised visibility (RVIS) and Gultepe_06 methods. The DT method showed a pattern similar to the observed fog occurrences. In this study, the Gulteppe_06 method produced the best performance under the lowest visibility situation, although there is some discrepancy in microphysics' simulated results, followed by DT and RUC.

Recently, summer high temperature events caused by climate change and urban heat island phenomenon have become a serious social problem around the world. Urban areas have low albedo and huge heat storage, resulting in higher temperatures and longer lasting characteristics. To effectively consider the urban heat island measures, it is important to quantitatively grasp the impact of urban high temperatures on the society. Until now, the study of urban heat island phenomenon had been carried out focusing only on the effects of urban high temperature on human health (such as heat stroke and sleep disturbance). In this study, we focus on the effect of urban heat island phenomenon on air pollution. In particular, the relationship between high temperature phenomena in urban areas during summer and the concentration of photochemical oxidant is investigated. High concentrations of ozone during summer are confirmed to coincide with a day when the causative substances (NO2,VOCs) are high in urban areas during the early morning hours. Further, it is noted that the night urban heat island intensity is large.. Finally, although the concentration of other air pollutants has been decreasing in the long term, the concentration of photochemical oxidant gradually increases in Daegu.

This study aims to increase the organic carbon, nitrogen and phosphorus removal efficiencies than the conventional method and meet higher effluent water quality standards by co-culture with bacteria in activated sludge in the aeration tank. By the co-culture in mixotrophic conditions through metabolic characterization of Scenedesmus dimorphus and bacteria in the aeration activated sludge, assessed how the impact on the organic matter, nitrogen and phosphorus removal rate. In addition, the study was to determine if it is possible to supply the oxygen necessary for the bacteria through the photosynthesis of algae without aeration. To test the synergistic effects of the co-culture, we compared co culture with S. dimorphus - only, Bacteria - only as a controls. In the co-culture condition inoculation ratio is based on the TSS concentration S. dimorphus and bacteria 1 : 5 (w / w), 5 : 5 (w / w) at a ratio. The growth rate of S. dimorphus - only condition was higher, which was 10 times and 2 times lower compared to B : A (5 : 1), B : A (5 : 5) respectively. Organic carbon removal rate of S. dimorphus - only condition was lower than other conditions, the remaining conditions were consumed at a similar rate. In the co-culture of Mixed bacteria and S. dimorphus, ammonium and phosphate removal rate has been high. But, nitrate removal rate showed a tendency to decrease compared to the Bacteria-only condition. When considering the Ammonium, nitrate and phosphate removal rate, N, P removal efficiency which is most excellent in terms of bacteria, such as S. dimorphus ratio (5 : 5) were co-cultured in the conditions. DO was maintained at 3 mg/L or more under all conditions. So, implying co-culture has the potential to decrease aeration costs.