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충남대학교 학술림 산책로 훼손실태 및 관리방안에 관한 연구
이준우,김명준,최윤호,전용준,오도교,김민호,이소연,이경형 충남대학교 농업과학연구소 2004 농업과학연구 Vol.31 No.2
This study concentrates an the trail of the CNU(Chungnam National University) forest. The amount of use and the pattern of damage are considered, as well as the extent of environmental damage. Finally, some managerial strategies are proposed in connection with sustainable maintenance. The trail of the university forest is composed of three sections; one is the neighborhood park and the Institute of Information Technology/Communications, the second is the Institute of Information Technology/Communications and the Dormitory, and the third section is the Dormitory and the Foreign prof's Apt. The total length of the trail is 2.6km. The daily amount of use is 1,269 visitors per day. The amount of using increased three times the amount of that in 1998. This study shows the pattern of damage of the trail in the order of root-exposure, widening, rock-exposure, deepening and the divergence in the frequency of occurrence of all these factors. Environmental damage is also graded thus: grade 3 is 27.4m, grade 4 is 0.8m, grade 5 is 1.5m, and grade 6 is 0.2m. Accordingly, some managerial strategies were proposed in connection with the sustainable trail maintenance.
李明熱,吳賢宇,崔承允,禹建錫 서울대학교농과대학농업개발연구소 1989 서울대농학연구지 Vol.14 No.1
In order to employ the honeybees (Apis mellifera) profitably as insect-pollinators, the factors governing their diurnal foraging activity, the patterns of diurnal flight activity at the hive entrance and the seasonal fluctuation of colony size were examined. The results obtained are summarized as follows. 1. There was a maximum flight activity at the hive entrance between 11h and 15h during the spring and fall but it was between 08h and 09h or 16h and 17h during the summer. This activity highly correlated with the solar energy(Mj/m²) during the spring and fall. 2. The brood area and colony weight developed to the maximum in early July but total number of flying bees at the hive entrance reached the peak early in May, and decreased in June but increased again late in July. 3. The higher the degree of flowering developed, the more active the foraging behavior. Though the degree of flowering was similar in different varieties, the foraging preference in the apple blossoms differed with varieties. 4. The amount of nectar per flower was variable with time hours, age of flowers and plant varieties. 5. The number of honeybees collecting only the nectar in the apple blossoms increased in the afternoon. Foraging behavior in the pear blossoms changed with the varieties and the numbers of honeybees collecting only the pollen (66%) or only the nectar (31%) did not change with time in the peach blossoms. 6. The diurnal foraging activities of honeybees on eight honey plants highly correlated with the solar energy but temperature, relative humidity and wind speed were not.
신봉철,하석재,강민형,권오양,조명우 한국공작기계학회 2008 한국공작기계학회 추계학술대회논문집 Vol.2008 No.-
In recent, the CFRP(Carbon Fiber Reinforced Plastics) composite has been widely used because it has light-weight and high mechanical strength. Therefore, CFRP composite is applied to variable industrial areas such as aerospace, automobiles, sporting goods, ships and so on. Generally, CFRP composite has been used in the industrial field by mechanical cutting processes. In this research, the CFRP composite specimen are laminated by 64plies with orientation angles such as 0°, 45°, 90° and [0°/±45°/90°]4S. The results are analyzed with cutting force and cutting surface.
주5일 수업제에 따른 토요프로그램 및 여가에 대한 학부모 인식 분석
우명숙 ( Myeong Suk Woo ),권동택 ( Dong Taek Kwon ),김영식 ( Yeong Sik Kim ),오세희 ( Se Hee Oh ) 경남대학교 인문과학연구소 2014 人文論叢 Vol.34 No.-
본 연구는 2012년도부터 전국의 모든 초 중등학교에서 주5일 수업제가 전면적으로 실시됨에 따라 주5일 수업제에 대한 학부모의 인식과 주5일 수업제가 여가활동에 미치는 영향을 분석했다. 또한 본 연구는 16개 시 도교육청 내 초등학교, 중학교, 고등학교 500개의 학부모 13,936명을 대상으로 온라인 설문조사를 실시하고,로짓모형 순서형 로짓모형 다항 로짓모형 토빗모형으로 분석하여 다음과 같은결과를 얻었다. 첫째, 토요프로그램의 참여율은 자녀가 고등학생 보다는 초등학생과 중학생인 경우, 지역적으로는 읍면지역에 비해 대도시에 거주하는 경우, 소득수준이 높을수록 높게 나타났다. 둘째, 학생과 학부모 등 수요자들의 의견 반영 정도가 높을수록 토요프로그램에 참여할 확률이 높았으며, 만족도 또한 높았다. 셋째, 학부모들은 자녀가 초등학생이며, 토요프로그램에 참여하며, 대도시에 거주하며, 가구소득이 낮은 경우에 주5일 수업제 전면 실시에 따른 가장 큰 문제점으로 학부모가 경제적 부담을 선택할 확률이 높게 나타났다. 넷째, 자녀가 토요프로그램에 참여하는 경우, 아버지와 어머니가 각각 토요일에 근무할 경우, 대체로 소득이낮을수록 여가활동과 가족여행이 증가할 확률이 낮은 것으로 나타났다. 주5일 수업제는 학부모와 학생의 의견을 반영하며, 저소득층 학생이 토요프로그램에 참여할 수 있도록 지원할 필요가 높은 것으로 보인다. This article analyzes late Joseon’s political thinker Kim Yunsik’s diary 『 Sokeumcheongsa 』 centeringaround the records about his exile in Jido, considering the lives of exiles in islands and the change ofsociety during the early 20th century. Kim Yunsik was exiled at Dungok Village in Jido from 1901till 1907. This period is highly noticeable because Jido-gun was established in 1896 and it was rightafter Mokpo Port was opened in 1897. Kim Yunsik had no inconvenience for the supervision orcontrol, but there were two things that made his exile different from that of others. First, though helived closely with the people of the island, he neither cultivated disciples nor formed friendship. It wasbecause his ideas were rather contrastive with the academic lines of Jido people. This is a verymeaningful example that shows exchange between island people and exiles was not unilateral then. Second, to earn money to live in the place of exile, he developed commercial activities aggressively. He used salt or croakers, specialty products of the region. This is fairly different from other islandexiles who had been there before. With 『 Sokeumcheongsa 』 the study also examined how the islandsociety changed in the early 20th century. After Jido gun was established, the residents’ livingconditions became even poorer. There were the ‘Jidogyoan’ in 1901 and the Imjado Uprising in1902. Meanwhile, opening the port of Mokpo did influence the island people’s lives significantly. There were a lot of comings and goings between Jido and Mokpo, and also modern goods weresupplied. And the most symbolic change was the building of Jimyeonghakgyo, a modernizededucational institution. This is very contrastive with just 10 years before when Oh Hoengmuk, thefirst gunsu, made all efforts for Hyanggyo.