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Effect of Organic and Inorganic Zinc Sources on Zinc Availability under Flooded Soil Condition
김태순,김재성,한강완,Kim, Tae-Soon,Kim, Jae-Sung,Han, Kang-Wan 한국토양비료학회 1981 한국토양비료학회지 Vol.13 No.3
In order to evaluate effectiveness of zinc source on uptake of zinc by rice plant, a pot experiment carried out using ZnEDTA and $ZnSO_4$ in a glasshouse. The results obtained were summarized as follows: The effectiveness of zinc source on uptake of zinc by rice plants was different with different soil. Namely ZnEDTA was more efficient than $ZnSO_4$ in increasing yield of zinc and concentration of zinc in the plant grown on Jecheon calcareous soil. In case of Keumgok acid soil, however, no superiority of ZnEDTA treatment was found. The plant growing status of ZnEDTA treated calcareous soil was also shown that larger number of tillers per hill, bigger height of the plant and good yield of dry matter production than those of the plant grown on $ZnSO_4$ treatment. Regardless of the zinc source, smaller number of tillers per hill, shorter height of the plant, and the lowest yield of dry matter were shown in the treatment of zinc and straw mixed with both soils. It seemed that more applied zinc was to be fixed by the straw application resulting in poor zinc yield. The extent of the zinc fixation showed markedly in Jecheon calcareous soil. 아연비료로서 ZnEDTA와 $ZnSO_4$의 유효도를 평가하기 위해서 수도의 아연흡수 실험을 시도했다. 수도의 아연흡수에 있어서 급원별(給源別) 아연 유효도는 토양에 따라서 차이(差異)가 있었다. pH가 높은 제천(提川) 석회암질(石灰岩質) 토양에서는 ZnEDTA가 $ZnSO_4$보다 수도체아연 농도(濃度)와 아연 흡수량(吸收量)을 증가시키는데 더 유효했다. 그러나 산성(酸性)인 금곡토양의 경우도 ZnEDTA의 유효성이 인정(認定)되지 않았다. ZnEDTA를 처리(處理)한 제천(提川) 석회암질(石灰岩質) 토양에서 생육(生育)한 수도는 $ZnSO_4$ 처리구 수도보다 분얼수와 초장(草丈)이 컸고 건물생산량(建物生産量)도 높았다. 아연급원에 관계없이 아연와 유기물(有機物) 처리구에서 자란 수도의 분얼수, 초장(草丈), 건물생산량(建物生産量)은 모두 다 적었다. 이것은 유기물(有機物)을 첨가(添加)하므로서 시비(施肥) 아연의 고정(固定)이 더 일어나서 수도체의 아연수율이 적기 때문이라고 본다. 아연고정 정도(程度)는 제천(提川) 석회암질(石灰岩質) 토양에서 컸다.
TAM을 적용한 식품이력추적시스템이 소비자 신뢰에 미치는 영향 연구
김태순(Tae Soon Kim),진양호(Yang Ho Jin) 한국조리학회 2011 한국조리학회지 Vol.17 No.4
This study applies the Technology Acceptance Model to grasp the effect of the food traceability system on consumer confidence and usage intention. To verify the causal relationships between the factors, the consumers who use grocery stores in Seoul were selected. From February 20, 2011 to February 28, 2011, a total of 300 copies of the questionnaire were distributed, and 284 copies except for those unsuitable for analysis were collected. SPSS 12.0 and AMOS 5.0 factors analysis and a reliability test were conducted, in order to validate the proposed hypotheses. The results are summarized as follows. First, the food traceability system had a significant effect on the technology acceptance model. Second, the food traceability system had a significant affect on consumer confidence. Third, the food traceability system had a significant effect on usage intention. Fourth, the technology acceptance model didn`t have a significant effect on consumer confidence. Fifth, the technology acceptance model and consumer confidence had significant effects on usage intention. Based on these results, this study suggests useful implications for the food traceability system.
배관 피로균열 성장 해석을 위한 유한요소 교호법의 적용
김태순(Tae-soon Kim),박상윤(Sang-yun Park),박재희(Jai-hak Park),박치용(Chi-yong Park) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.11
Finite element alternating method have been suggested and used for assessing the integrity of cracked structures. In the paper, in order to analyze arbitrarily shaped three dimensional cracks, the finite element alternating method is extended. The cracks are modeled as a distribution of displacement discontinuities by the displacement discontinuity method and the symmetric Galerkin boundary element method. Applied the proposed method to three dimensional crack included in the elbow, the efficiency and applicability of the method were demonstrated.
유한요소 교호법을 이용한 무한 물체에 존재하는 임의 형상의 삼차원 균열 해석
김태순(Tae-soon Kim),박재학(Jai-hak Park),박치용(Chi-yong Park) 대한기계학회 2004 대한기계학회 춘추학술대회 Vol.2004 No.4
Many analysis methods, including finite element method, have been suggested and used for assessing the integrity of cracked structures. In the paper, in order to analyze arbitrarily shaped three dimensional cracks in an infinite body, the finite element alternating method is extended. The cracks are modeled as a distribution of displacement discontinuities by the displacement discontinuity method and the symmetric Galerkin boundary element method. Applied the proposed method to several example problems for planner cracks in finite bodies, the accuracy and efficiency of the method were demonstrated.
김태순 ( Tae Soon Kim ),안우현 ( Woo Hyun Ahn ) 한국정보처리학회 2016 한국정보처리학회 학술대회논문집 Vol.23 No.1
안드로이드 운영체제에서 앱과 시스템의 성능을 향상시키기 위해 효율적인 메모리 관리가 요구된다. 기존 연구는 앱 단위로 메모리를 관리하였으나 앱이 사용하는 이미지, 동영상과 같은 리소스를 저장하는 메모리 공간인 앱 리소스 캐시에 대한 분석이 없었다. 본 논문은 앱 리소스 캐시의 구조, 리소스 캐싱의 동작을 분석하고, 빈번히 접근되는 리소스의 캐싱이 앱과 시스템 성능에 어떠한 영향을 미치는지 분석한다.