검색결과

검색조건
좁혀보기
검색필터
결과 내 재검색

간행물

    분야

      발행연도

      -

        검색결과 8

        1.
        2017.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        This study was conducted to clarify the effect of high temperature during winter period(autumn sowing) and spring sowing on yield, quality and growth and development in barley. The varieties used for the experiments were heenchalssalbori and keunalbori 1 having a strong spring habit characteristics. In spring sowing treatment, spikelet differentiation was proceeded rapidly and tillering was proceeded slowly compared to the development stage, because the barley sowed at spring is cultivated in high temperature and long day conditions from sowing to spikelet differentiation stage compared with autumn sowing(control). And in high temperature treatment during winter period, like spring sowing, tillering was inhibited compared to the development stage. The number of grain per panicle and the period required to heading stage from spikelet differentiation were reduced largely at spring sowing, because spring sowing treatment was conducted in high temperature and long day condition compared with autumn sowing and high temperature treatment during the period from spikelet differentiation to heading stage. Meanwhile in spring sowing treatment, average temperature during ripening stage was higher than the autumn sowing and high temperature during winter, because heading stage was so late. After all, starch, amylose content and grain weight were reduced while protein content was relatively increased in spring sowing treatment due to difference of average temperature of ripening stage. These changes affected the decrease of viscosity of peak, trough, breakdown and the increase of setback viscosity
        4,000원
        2.
        2015.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In this study, we hypothesized that the size of wintering crane population would change due to the climate factors. We assumed that wintering population size would differ by climate values in January, which is the coldest period in year. Especially, White-naped cranes were able to choose wintering site between Cheorwon and other alternative place where snow coverage had low influence, differing from Red crowned cranes. For this reason, we predicted the population size of White-naped cranes would fluctuate according to the extent of snow coverage in Cheorwon. Therefore we used snow coverage data based on MODIS and climate data from KMA (Korea Meteorological Administration) that are generally used. We analyzed the crane’s population size in Cheorwon in January from 2002 to 2014. The temperature in the Cheorwon increased from 2002 to wintering period in 2007~ 2008 and went down, showing the lowest temperature in 2011~ 2012. With this phenomenon, warmth index showed the similar pattern with temperature. Amount of newly accumulated snow (the amount of snow that fallen from 0:01 am to 11:29 pm in a day) was low after 2002, but rapidly increased in 2010~ 2011 and 2011~ 2012. The area of snow coverage rapidly declined from 2002 to 2005~ 2006 but suddenly expanded in wintering period in 2009~ 2010 and 2010~ 2011. Wintering population size of the White-naped cranes decreased as snow coverage area increased in January and the highest correlation was found between them, compared to the other climatic factors. However, the number of individuals of Red crowned cranes had little relationship with general climate factors including snow cover range. Therefore it seems that population size of the Red crowned crane varied by factors related with habitat selection such as secure roosting site and area of foraging place, not by climatic factors. In multiple regression analysis, wintering population of White-naped cranes showed significant relationship with logarithmic value of snow cover range and its period. Therefore, it suggests that the population size of the White-naped crane was affected by snow cover range n wintering period and this was because it was hard for them to find out rice grains which are their main food items, buried in snow cover. The population size variation in White-naped cranes was caused by some individuals which left Cheorwon for Izumi where snow cover had little influence on them. The wintering population in Izumi and Cheorwon had negative correlation, implying they were mutually related.
        4,300원
        3.
        2012.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The purpose of this study is to identify the characteristics of the use of the western building system with the change of the architectural design in the Japanese colonial period focused on the facility built by Joseon Government-General in 1910s. Through the 131 cases of governmental building, the tendency of the use of western building system. After 1910, Japanese Imperialism adopted the western wooden building system which main structure was made with combination of small pieces of timber for building the modern governmental facility because of the political and financial intention. So, all facilities were designed similarly by the structural module and the facade was finished by the feather boarding in the same with the ‘sitamitakei-giyohu’ in Japan. the functional requirements of each facility was not revealed. Such an western wooden building system was used until 1920s with the change of the facade by the mortar coating. But, in 1920s-1930s, the building system have begun to change. The use of the brick system caused some changes although the planing concept was still lasted. On the other hand, the use of the reinforced concrete led to more changes on the overall scheme.
        4,300원
        4.
        2012.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        팽이버섯의 품종, 저장 온도 및 저장기간에 따른 자실체의 유기산의 변화를 조사하여 저장기간을 판단하기위한 기초자료로 사용하고자 HPLC을 이용하여 유기산을 분석·정량하였다. 팽이버섯 자실체에 존재하는 acetic acid, butyric acid, citric acid, fumaric acid, DL-isocitric acid, L(+) lactic acid, D-malic acid, propionic acid, succinic acid, D-tartaric acid 등 총 10종류의 유기산을 분리하였다. 대부분의 품종에서 acetic acid 함량이 가장 높게 나타났으며, fumaric acid 함량이 가장 낮았다. mono-carboxyl group의 유기산인 acetic acid는 품종 및 저장온도에 따른 함량에 차이도 있으면서 저장기간에 따라 일률적으로 증가하는 경향을 보였다. 그러나 butyric acid 등은 저장온도 및 품종에 따라 함량의 차이가 심하였다. Di-carboxyl group의 유기산인 fumaric acid는 저장 및 품종에 따른 차이 없이 감소하였으나, 저장기간 동안에 확인되는 함량이 1.5mg/g으로 그 함량이 적고, ASI 4149, 4166균주에서는 약간 다른 경향을 보이고 있다. 그 외에 malic acid 등은 저장온도 및 품종에 따라 함량의 차이가 심하였다. Tri-carboxyl group의 citric acid는 저장온도 및 품종에 상관없이 저장기간에 따라 증가하여 효과적으로 저장기간을 평가할 수 있는 지표로 사용할 수 있을 것으로 추정된다. isocitric acid는 저장온도, 품종 및 저장기간에 따라 성분함량의 변화가 심하였다.
        4,000원
        5.
        2010.03 구독 인증기관 무료, 개인회원 유료
        In this study, compare the results that used period of an object building and a structural analysis program in order to to analyze the effect that a slab element to oppose a vertical load opposes to lateral loading of a structure. Compared with to analyze the results to the Diaphragm which is existing analysis and a way do modeling to an plate element to slab element of RC wall type structures to give a change of rigidity with 100%, 50%, 30%
        4,000원
        6.
        2008.12 구독 인증기관 무료, 개인회원 유료
        숙취해독에 탁월한 효과를 지니는 asparagine 함량의 콩나물 계통간 차이와 뿌리 발생량에 따른 차이 및 콩나물 재배기간에 따른 차이를 구명하여 고 asparagine을 가지는 기능성 콩나물 생산과 품종육성을 위하여 국내재래 콩나물 계통의 asparagine 함량을 분석한 결과를 요약하면 다음과 같다. 1. 공시된 나물콩 174품종 및 계통의 콩나물에서의 asparagine 함량의 범위 및 평균은 0.38~1.67%, 0.99%(생체수준)로 각각 나타나 다양한 변이를 보였다. 2. 공시된 장려품종과 재래계통의 asparagine 함량은 각각 1.29, 0.96%(생체수준)로 재래계통보다 장려품종에서 높게 나타났다. 3. 백립중별 asparagine함량은 8.1~10.0g범위에서 1.02%(생체수준)로 가장 높은 경향이었으나 유의적인 차이는 인정되지 않았다. 4. 종피색별 asparagine 함량은 갈색종피종이 1.15%(생체수준)로 가장 높았으며 다른 종피종들은 비슷한 경향으로 나타났다. 5. 공시된 장려품종의 asparagine 함량의 범위는 4.08~6.24%(건물수준)로 나타났고, 다원콩(6.24%), 소백나물콩(6.21%), 소원콩(5.95%), 소명콩(5.85%) 순이었다. 6. 콩나물의 재배일수를 10일로 한 경우 asparagine 함량과 관계가 깊은 뿌리발생량이 크게 증가하였다. 7. 재배일수에 따른 asparagine함량은 5일재배와 10일 재배에서 각각 0.68%, 1.21%(생체수준)로 나타나 재배일수간 asparagine 함량에는 고도의 유의적인 차이가 인정되었다. 8. 콩나물의 하배축 부위에서 재배일수가 증가할수록 asparagine 함량도 증가하여 2일 재배시 2.91%(건물수준)이던 것이 14일 재배시에는 15.68%까지 증가하였다.
        4,000원
        7.
        2003.05 구독 인증기관 무료, 개인회원 유료
        정확한 라스트를 제작하기 위하여, 시간대별 발의 변형을 고려한 데이터가 필요하다. 발은 개인의 특성에 따라 차이가 있으나, 정확한 라스트 개발을 위해 체중이 부하되지 않은 상태와 체중을 부하하고 양측 발로 체중을 지지하고 있을 때 발을 측정함으로 발과 기간 대에 따른 관계를 도출해내야 한다. 이 연구는 발길이(foot length), 볼너비(ball width), 볼둘레(ball girth) 뿐만 아니라 발등둘레(foot-dorsum girth), 종골하 지방패드의 너비(heel-pad width) 및 높이(heel-pad height) 등을 측정, 분석하여 기능성 라스트 제작을 위한 기반을 제공한다.
        3,000원
        8.
        2015.08 KCI 등재 서비스 종료(열람 제한)
        Germination properties, leachate electrical conductivity (EC), and inorganic compound leaching were analyzed to ascertain the storage ability and change of physiological characteristics during storage of Hippophae rhamnoides seeds. Seeds were placed in an incubator at 25℃ and sown in different soil media (sand, vermiculite and horticultural substrate) after being stored for 6, 18 and 30 months at 2℃. All germination properties decreased in accordance to an increase of the seed storage period. Compared with the seed storage for 18 months, germination percentage (GP), germination performance index (GPI), and germination value (GV) of seeds stored for 30 months decreased by more than 50%. When the seeds were sown in different soil media in a greenhouse, those germination properties were similar to the seeds germinated in an incubator, and mean germination time, GPI and GV had a significant difference except GP among soil media. EC and inorganic ion concentration had a strong positive correlation with the seed storage period, but the ratios of inorganic ions from stored seeds revealed that K + /Mg 2+ and Na + /Mg 2+ were inversely correlated with the storage period.