• Title/Summary/Keyword: 비무기

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Effects of Culture Media and Seawater on Growth and Mineral Concentrations in Glasswort (Salicornia herbacea ) (퉁퉁마디(Salicornia herbacea )의 인공상토 재배 시 해수농도별 생육 및 무기성분 흡수에 미치는 영향)

  • Kim, Young-Suk;Huh, Moo-Ryong;Park, Joong-Choon
    • Horticultural Science & Technology
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    • v.19 no.3
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    • pp.342-347
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    • 2001
  • The experiment was carried out to examine the effect of culture media and seawater on growth and mineral concentrations in Glasswort (Salicornia herbacea). Glassworts were grown in a greenhouse with 0, 10, 30 and 90% seawater and with or without nutrient media. The salinity tolerance affected on shoot height and Na, K and Ca concentrations significantly. The shoot height was increased with 10 and 30% seawater concentrations. At the higher seawater concentrations, more Na accumulated in a shoot was obserbed. The application of seawater concentration was effective on increasing Na, Mg, and Fe, concentrations and green leaf area rate and on decreasing K concentration. K/Na ratio of shoot was decreased at high seawater concentration, whereas Na concentrations was lowered at a low seawater concentrations. The mineral concentrations were changed according to the growing season. Na, K and Mg were high in June and Ca and P in September, respectively.

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Comparisons of Physicochemical Composition of Korean and Chinese Crataegi Fructrus (한국산 산사와 중국산 산사의 이화학적 성분 비교)

  • Lee, Jae-Joon;Lee, Hyun-Joo
    • Food Science and Preservation
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    • v.19 no.4
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    • pp.569-576
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    • 2012
  • This study was conducted to compare the major chemical components of Korea Crataegi fructrus (KCF) and Chinese Crataegi fructrus (CCF). Among the proximate compositions, the curde fat content of KCF was lower than that of CCF, whereas their crude protein, crude ash and carbohydrate contents were similar. CCF had a higher total free sugar content than KCF. The major free sugars of KCF and CCF were identified as fructose and glucose. The value of glutamic acid was greater in the amino acids of KCF and CCF, and KCF had higher total amino acids and essential amino acids contents than CCF. KCF also had a higher level unsaturated fatty acids than CCF. CCF had a higher organic acid content, but both KCF and CCF had high citric acid levels. and Chinese The vitamin C contents of KCF and CCF were 272.69 mg per 100 g and 262.38 mg per100 g, respectively. The mineral content of KCF was higher than that of CCF, in the following order : K > Ca > Mg > Fe. The results showed that KCF had higher total amino acid, essential amino acid, unsaturated fatty acid and mineral contents and CCF had higher free sugar and organic acid contents.

A Study on Comparison Analysis for Calculating of Weapon System Operation Cost at the Development Stage (개발단계에서 무기체계 운영유지비 예측을 위한 비교분석 연구)

  • Jeong, Jun;Lee, Ki-Won;Cha, Jong-Han;Choi, Dong-Hyun;Park, Kyoung-Deok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.2
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    • pp.83-94
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    • 2019
  • Recently, the importance of Total Life Cycle System Management (TLCSM) and LIFE-CYCLE COSTS management is increasing in the development of weapon systems. In cost management, cost forecasting is important from the initial development stage, but it is difficult to predict the total life cycle cost at the development stage. In this study, we propose efficient management cost calculation and management at the development stage of the weapon system by comparison analysis between the PRICE-HL model and NemoSIM to calculate the maintenance cost under the CAIV concept. Based on the study results, further in-depth analyzes of the PRICE-HL model and NemoSIM input values / results are performed. In addition, we provide a more accurate method of calculating the cost of maintaining and operating the weapon system and a plan to utilize the result of NemoSIM in the ILS element development.

A Design of Operational Test & Evaluation System for Weapon Systems thru Process-based Modeling (프로세스 기반의 모델링을 통한 무기체계 운용시험평가 시스템 설계)

  • Lee, Beom;Seo, Yoonho
    • Journal of the Korea Society for Simulation
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    • v.23 no.4
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    • pp.211-218
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    • 2014
  • The Test and Evaluation (T&E) system became more important due to its advancement and complexity of the weapon system. Time and cost saving T&E related studies are in progress mainly with advanced countries. By utilizing the Modeling and Simulation (M&S) technology recently, we may save time and money. Also, overcome security and safety limitations. There are many M&S based research activities in South Korea but it is way behind of the system that some countries already have developed. i.e.; United States. This area of study requires new way of developing strategies in the T&E system of Korea. This study is to design the Operational T&E system for weapon systems based on modeling of processes. And we modeled the processes of operational performance evaluation through utilizing resources and performance modules of weapon systems and combined it with the simulation engine for 3D visualization. Through this, we propose the Operational T&E system for weapon systems based on modeling of processes that represent operational performances visually.

Effects of Mineral Media, Carbon Sources and Phytohormones on Micropropagation of Alnus hirsuta (물오리나무(Alnus hirsuta)의 기내증식에 미치는 기본배지, 탄소원 및 식물호르몬의 영향)

  • 김경희
    • Journal of Plant Biology
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    • v.35 no.2
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    • pp.135-142
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    • 1992
  • Shoot tip explants from germinated seeds of Alnus hirsuta were cultured on NT (Nagata and Takebe, 1971) mineral salts medium supplemented with 6% glucose, MS (Murashige and Skoog, 1962) vitamin mixture, polyvinylpyrrolidone (PVP) and $0-50\;\mu\textrm{M}$ 6-benzylaminopurine (BAP). Five $\mu\textrm{M}$ BAP was found to give the highest shoot multiplication rate. Accordingly about 200 shoots were obtained for further experiments by multiplying shoots on this medium for 4-5 months. Regardless of carbon sources, NT mineral medium produced 3-12 times of shoots than MS mineral medium did. On NT mineral medium, 3% sucrose, 3% glucose and 6% glucose yielded no significant differences. It was observed that media consisting of 1/4-1/2 strength NT mineral salts, 3% sucrose and $1-8\;\mu\textrm{M}$ IBA produced about 100% rooting rate. Almost 100% of the resulting plantlets survived after transfer to the soil by decreasing humidity stepwise.epwise.

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