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        검색결과 2

        1.
        2011.12 구독 인증기관 무료, 개인회원 유료
        The objectives of this study was to recognize the importance for excellent teacher training as the global current, and as a result, gain the implications for establishing favorable directions to train schoolteachers. To accomplish such objectives, the tea
        6,900원
        2.
        2015.04 KCI 등재 서비스 종료(열람 제한)
        The estimation of groundwater usage in Jeju island is important to understand hydrologic cycle system and to plan management of water resource because large amounts of groundwater have been used for agricultural and domestic purpose. The model has been developed to estimate agricultural groundwater usage for garlic at uplands and citrus at orchards raising outdoors using the soil water balance model from FAO 56, respectively. The total amount of water supplied for the crop evapotranspiration and the multipurpose function such as sprout promotion can be simulated by the model. However, due to the discrepancy of water use in initial stage between calculated and observed, the model was calibrated and verified using actual groundwater usage monitoring data for 3.5 years (2011.6 to 2014.12) at three uplands for garlic and three orchards for citrus. Consequently, it would be concluded that the model simulated efficiently actual water usage in that root mean square (RMS) and normalized RMS of the validation stage were less than 8.99 mm and 2.43%, respectively, in two different conditions.