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RISS 인기검색어
- 검색키워드
- 저자 : 이광원(Kwang Won Lee) (검색결과 400 건)
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이광원,임재환,이두희,Lee, Kwang-Won,Lim, Jae-Hwan,Lee, Doo-Hee 충남대학교 농업과학연구소 1997 Korean Journal of Agricultural Science Vol.24 No.2
The number of modernized green houses have been increased to produce high quality and high-payoff farm products. The unit investment costs per pyeong($3.3058m^2$) for building a glass house was estimated at 449 thousand won. On the other hand, the unit prices for the PC house with iron frame and the vynil house with automatic control system were revealed 365 thousand won and 93 thousand won respectively. The main objective of the study was to identify the financial feasibility of the green house investment prevailed in rural area. At present, some farmers have selected the green house without any consideration of profitability of crops and accessiblity of their fanning practices and technology. For the soundness of green house cultivation and management, the indices of finacial efficiency for the modernized green houses were necessary. The decesion making criteria such as NPV(Net Present Value), IRR(Internal Rate of Return), B/C Ratio and Payback Period were analyzed for the individual high investment facilities considering the present farmer's technology and on-farm benefits and costs. The results of the feasibility analysis of green houses were as follows: 1. In case of 100% private burden of the investment costs, NPV revealed only positive value for the vinyl house with automatic system and IRR for the house was also estimated at more than 10% and B/C Ratio was amounted to more than 1.0. On the other hand, the other glass and PC houses showed negative NPV and unacceptable B/C ratio and IRR. 2. In case of the following terms and conditions as 50% Government subsidy, 20% loans and 30% farmers burden of the total investment cost, all the green houses showed acceptable IRR, B/C Ratio and NPV. 3. The financial feasibility of the glass house was acceptable in tomato cultivation rather than in cucumber cultivation. The payback periods of cucumber were represented as 8.9 years for glass house, 8.5 years for PC house and 4.1 years for vinyl house with automatic system respectively. In conclution, the glass and PC house cultivation of high value vegetables were only acceptable under the Goverment subsidy and loan systems from the view point of farmer's financial situations. On account of the unacceptable economic rate of return, the government subsidy and loan policy for glass house cultivation should be transfered to the vinyl and pc houses in the future.
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이광원(Kwang-Won Lee),전수현(Su-Hyun Chun),김희은(HeeEun Kim) 한국식품과학회 2017 식품과학과 산업 Vol.50 No.3
monosodium L-glutamate (MSG), composed of 88% Lglutamic acid (GLU) and 12% Na, is considered as Generally Recognized as Safe. GLU is accounting for 15% of the total amino acid content in our body. Daily GLU intake is large 3.5-10.6 g from food and 1.3 g from food additive. The daily formed GLU in the body, via degradation of the total protein, is 48-50 g (70 kg of male) and the maintained GLU in the body is total bound GLU (1.4-2.0 kg) and free GLU (10 g). About 88% GLU are consumed at digestive tract, and only 12% GLU enter the blood stream. GLU is generally known to precursors of N-acetyl glutamate and glutamine, substrates for protein synthesis, a neurotransmitter (GABA), and the active site of the enzyme. In addition to protein synthesis, GLU has these key functions within the body, thus this amino acid is critical for healthy body maintenance and function.
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