• Journal of Ginseng Research
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• 제21권1호
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• pp.28-34
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• 1997

The effects of light on the pigment production and chloroplast development were examined on ginseng hairy roots cultured in 1/2MS liquid medium. The chlorophyll and carotenoid production were increased from 1,000 to 3,500 lux condition, but decreased drastically in 7,000 lux condition. The anthocyanin production was significantly increased with increment light intensity(1,000∼7,000 lux). The thylakoid membrane of chloroplast was proplastid in dark condition and it began to develop into thylakoid membrane in 1,000 lux condition and then intact thylakoid membrane was developed in 3,500 lux condition. However, the development of thylakoid membrane in 7,000 lux condition was inhibited comparing to 3,500 lux condition. The total chlorophyll production in blue light condition were high comparing to other wavelength and same as 40% of total chlorophyll on white light(3,500 lux) condition. The chlorophyll and carotenoid production by sucrose concentration were high in 3% sucrose condition and anthocyanin production was high in 4% condition. The production of chlorophyll and carotenoid by light periods was high when explants were cultured in dark condition for 1 week and then transferred to light condition for 4 weeks. Our results suggest that pigment production and chloroplast development could be accelerated by light Intensity of specific wavelength in cultures of ginseng hairy root.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2005년도 춘계 학술발표회 논문집
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• pp.806-810
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• 2005

Slope was necessarily formed by development of hilly district for human living. At present slope is distributed about sixteen thousand in state road and expressway. Nevertheless, rule of preservation management for slope is overlapping or diffuse. In this study it analyze condition evaluation for slope.

• Journal of Animal Science and Technology
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• 제61권6호
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• pp.366-370
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• 2019

Overweight and obesity induce serious health problems that exert negative effects on dog's welfare. Body condition score (BCS) is a common method to evaluate the body fat mass in animals. By palpating and observing fats under the skin it is possible to predict animal's body fat accumulation condition. BCS is also a useful tool to estimate body fat composition in dogs. However, BCS can be subjective when it was performed by non-professionals like pet's owners. To develop a method to avoid the misevaluation of BCS twenty-four Beagles were enrolled and performed BCS evaluation. In addition, the length of chest and abdominal girths were measured. In correlation analysis, the sizes of chest and abdominal girth were significantly correlated with BCS. Especially, the difference and ratio of the chest and abdominal length were highly correlated with the BCS. With that, we suggested that this simple measurement of chest and abdominal girths by a measuring tape would be an effective method to estimate BCS scores in dogs that helps non-professionals to manage their own dog's nutritional condition by monitoring body fat accumulation condition.

• 한국유기농업학회지
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• 제14권4호
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• pp.341-360
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• 2006

The paper describes condition success for the development and policy environment of organic farming in Korea. policy measures concerning area-based financial support for conversion to and continuation of organic farming, officially-recognized standards and support for market and regional development, advice and research are considered. This indicates that individual measures can also work against each other. In some region, good experiences habe been made with integrated action plan, an approach that is also being discussed at the national level and which could achieve a good basis for the development of Bio-farming in future.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2001년도 가을 학술발표회 논문집
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• pp.533-536
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• 2001

When fresh concrete is exposed to low temperature, the concrete may suffer frost damage due to freezing at early ages and strength development may be delayed. One of the solution methods for resolving these problems is to reduce freezing temperature of concrete by the use of chemical admixture called Accelerators for freezing resistance. In this study, we investigate the effect on strength development of cement mortar using accelerators for freezing resistance with the variance curing condition. As the result of this study, the mortar using accelerators for freezing resistance show that continuously strength development in curing condition of -5$^{\circ}C$. And compressive strength under the variance temperature condition was higher than fixed temperature condition in same maturity.

• 품질경영학회지
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• 제49권3호
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• pp.269-279
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• 2021

Purpose: The purpose of this study was to suggest weapon system specifications for requirements of Condition-Based Maintenance(CBM/CBM⁺). Methods: The military documents and case studies with regard to condition-based maintenance were reviewed. Representative Korea defense specifications of weapon system such as an aircraft, a C4ISR etc. were analyzed and investigated the level of requirement for maintainability was. Results: Condition-based maintenance was defined in both U.S. instruction and Korean directive. While deparment of defense(U.S.) provide a guidebook for CBM⁺, detailed instruction was not sufficient for Korean. Ministry of national defense(ROK) define the CBM⁺ by means of IPS element which should be developed along with the system development. The maintainability was barely included in Korean defense specifications, except for BIT(Built-in test) function. As a first step for defining the condition-based maintenance requirement in defense specification, this study suggests a standard form for data needed to acquire according to types of system, fault, failure, and so on. Conclusion: The empirical researches on CMB/CBM⁺ with domestic weapon systems are not enough, and a logic which leads the maintenance strategy to CMB/CBM⁺ is not solved. Through technical researches and institutional improvements including this study, we hope that condition-based maintenance would be fully established in the Korean defense field.

• 한국사회복지학
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• 제55권
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• pp.155-179
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• 2003

본 논문은 국가간 사회복지수준을 비교하는 기준으로서 경제수준과 사회수준 중 후자가 보다 적절한 기준임을 밝혀냈다. 또한 사회복지지출이 많은 나라들일수록 사회수준이 경제수준보다 높은 경향을 보였는데 이는 경제성장 위주의 정책보다는 사회 각 부문의 균형적 발전을 통한 보편적 삶의 질, 즉 사회수준 향상이 사회복지수준 향상에 중요한 요인임을 제시하는 결과였다. 한국의 사회복지수준은 우리의 경제, 사회수준을 고려한 기대수준보다 현저히 낮다는 기존의 사실을 다시 한번 확인하였다. 이러한 결과를 근거로 보편적 삶의 질과 빈곤층의 삶의 질 수준과의 격차를 해소하여 권리로서의 사회복지를 실현하는 것이 시급한 과제라는 것과 사회수준 자체의 향상을 통해 사회복지에 대한 국민적 관심을 증가시키고, 사회복지부문간 격차, 즉 사회보험과 공공부조와의 현격한 차이를 줄이는 정책이 필요하다는 점을 제시하였다.

• 한국패류학회지
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• 제30권3호
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• pp.189-196
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• 2014

A significant production decrease has been witnessed for the Pacific oysters, Crassostrea gigas farmed in the western coastal waters of Korea, presumably by the loss of physiological viability. We evaluated the viability in terms of health indicators, the condition indices and hemocyte apoptosis rates of the oysters inhabiting two representative farming sites, Incheon and Taean each with different environmental variables. In our monthly measurements for the whole year 2013, the indicators were location specific. The condition indices of Incheon were highly variable, 1.67-8.58%, while those of Taean were less, 2.28-5.57%. The condition indices decreased during the spawning seasons, July and September in common. The two oysters exhibited also differed in the apoptotic activities of hemocyte, highly active, 4.03-30.15% for Incheon oysters and less active, 2.87-17.48% for Taean oysters. One thing we could identify was the two measurements were adverse during the critical seasons of spawning, reminiscent of being a useful tool for a health indicator for the oysters. Similar trend was also observed in the time when change in temperature was extreme. The findings in this study are highly indicative of health indicators for the oyster aquaculture.

• 농촌지도와개발
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• 제9권1호
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• pp.61-73
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• 2002

The objectives of this study were to explore the present condition and development direction of youth allied organizations such as Korea 4-H Club Federation, Clover Alumni Association and Korea 4-H Association. Researcher developed questionnaires were used to identify historical changes, present condition and development directions of the youth allied organizations. The data were collected from 105 purposively sampled representatives from the youth allied organizations, and SPSS/WIN program was employed to analyze the data. Major problems of the youth allied organization, according to the respondents, were financial difficulties and lack of full-time employee for the organizations. It was recommended that more full-time employees would be necessary for further development of youth allied organizations. Securing wider membership throughout the country and financial security were recommended for development of the youth allied organizations.

• 한국건축시공학회지
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• 제2권2호
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• pp.151-156
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• 2002

When fresh concrete is exposed to low temperature, the concrete may suffer frost damage due to freezing at early ages and strength development may be delayed. One of the solution methods for resolve these problems is to reduce freezing temperature of concrete by the use of chemical admixture called Accelerators for freezing resistance. In this study, we investigate the effect on strength development of cement mortar using accelerators for freezing resistance with the variance curing condition. As the result of this study, the mortar using accelerators for freezing resistance show that continuously strength development in curing condition of -5$^{\circ}C$. And compressive strength under the variance temperature condition was higher than constant temperature condition in same maturity.