• Journal of the Korean Society of Child Welfare
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• no.56
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• pp.101-132
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• 2016

Fandom is a meaningful social phenomenon that represents a significant dimension of contemporary Korean youth culture. Previous research, however, has considered fandom as a deviant activity that is negative in nature, and there is scant research on the positive effects of fandom activity. This study examined the effects of off-line and on-line fandom activity participation on adolescents' academic time management capability. Data were collected from three waves (2010, 2012, and 2014) of the Korean Children and Youth Panel Survey (middle school cohort; N=2,206 at baseline). Results from the multi-level growth curve analysis were as follows. First, more than half of the adolescents reported participating in fandom activities, and the majority of them participated in both online and offline activities. Second, adolescents' academic time management capability improved over time. Third, both off-line and on-line fandom activity participation was positively associated with adolescents' academic time management capability at the baseline (first year of middle school). The size of this relationship, however, decreased over time (from middle school to high school). This study presented the importance of appropriate guidance by adults to develop and promote the positive aspects of fandom activity, and highlighted the need for further research that focuses on the positive aspects of fandom activities.

• Monthly Duck's Village
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• v.63 no.9
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• pp.56-59
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• 2008

육용오리는 가급적 적은 사료를 이용하여 성장속도를 최대한 빠르게 하는 동시에 체지방이 필요 이상 축적되지 않은 우수한 육질이 되도록 사육하는 것이 중요하다. 오리는 어릴 때 발육속도가 빠르므로 사료 중 단백질 수준이 오리의 발육, 특히 초기 성장기의 중체량에 크게 영향을 미친다. 첫 2주간에 최대한 증체를 위해서는 22% 단백질사료를 급여해야 하며, 오리가 성장함에 따라 단백질 요구량은 점차 감소하게 된다. 그러나 오리의 육성기 전기간을 16% 수준의 단백질사료를 급여하더라도 사양환경이 좋으면 출하체중에는 영향이 없게 된다. 즉, 육성초기에는 단백질 급여량의 부족으로 성장이 떨어지게 될지라도 후기에 가서는 쉽게 이를 회복하는 능력이 있다.

• Electronics and Telecommunications Trends
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• v.11 no.1 s.39
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• pp.147-153
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• 1996

연구개발투자의 촉진과 가용한 연구개발자원의 효율적 배분을 위해서는 연구개발투자의 경제적 효과에 대한 이론적이고 실증적인 분석을 통해 연구 개발투자의 효과를 정량적으로 입증할 필요성이 있다. 본 연구에서는 연구개발투자가 경제 성장에 미치는 직접효과와 기술 및 기술능력을 통해 경제성장에 미치는 간접효과를 실증적으로 분석하고자 한다.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 1998.10a
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• pp.140-143
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• 1998

• KOREAN POULTRY JOURNAL
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• v.14 s.156
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• pp.43-46
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• 1982

병아리 주령별 체중 차이를 이용해 육용계의 능력향상을 유도하고 성장속도를 빠른쪽으로 개량해 종란의 무게도 무거운 쪽으로 바꿔가고 있다.

• Journal of Technology Innovation
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• v.22 no.4
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• pp.235-259
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• 2014

New product or new technology developments are directly linked to a firm's survival and thus their performance and improvement are gaining attention in the midst of rapidly changing business environment and aggravating competition. However, despite SMEs' significance in the national economy, they are limited in terms of size and resources in possession, so the government provides a variety of supports as a policy. According to a study on the organizational life cycle, a firm's limits and difficulties differ by growth stage, so the supports need to be tailored. Based on the data from 2,575 firms that responded to the "2011 SMEs Technological Statistics," how technological capability level and deviation in the R&D process affect the R&D sales performance was studied. The result of analysis revealed that the technological capability has a positive impact on the R&D sales performance. It was also learned that the relationship between deviation in the technological capability and R&D sales performance was moderated by the government support. For the hypothesis that the government support would have a different moderating effect by growth stage for the impact the technology level has on the R&D sales performance, the empirical analysis showed a different meaningful moderating effect for each growth stage. The theoretical implications of the study are that, instead of a simple relation of dynamics that does not take the growth stages into account, it suggested a more realistic causal relationship model that reflects the complex environment the SMEs are in and that the need for measuring and using the deviation in technological capability as a research variable has been justified. The practical implications are that the government policy for supports can be tailored to a growth stage and that the guidelines have been suggested to effectively use the government funding by encouraging the SMEs in a different growth stage to adapt to the customized policy.

• Korean Journal of Poultry Science
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• v.43 no.3
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• pp.177-189
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• 2016

This study was conducted to verify the relationships between the expression values of stress-related markers and their production performances in 25 strains of Korean domestic chicken breeds. For stress response markers, the amount of telomeric DNA; expression levels of heat shock protein (HSP)-70, $HSP-90{\alpha}$, and $HSP-90{\beta}$; and comet scores were analyzed. Production performances were measured by the survival rate, body weights, days at first egg laying, egg weight and hen housed egg production. The results showed that the production traits and values of stress-related markers showed significant differences between strains. In general, the stress response of pure bred chickens with heavy weights was relatively high, while that of hybrid chickens with light weights was relatively low. The correlation coefficients between telomere contents and body weights showed that there were weak negative relationships. However, the correlations of telomere content with the survival rate and egg production were weakly positive after 20 weeks old. The expression levels of HSP genes and DNA damage rate (comet scores) were positively correlated to body weight, but were negatively correlated to the survival rate and egg production. The results implied that increasing body weight was associated with increasing HSPs expression and the DNA damage rate was associated with decreasing telomere content. In addition, increasing HSPs expression and the DNA damage rate decreased the survival rate and egg production, but the relationships with the telomere content was the reverse. Correlations among the stress-related markers showed that there were significant correlation coefficients between all of the marker values. HSPs expression was negatively correlated to the telomere content, while it was positively correlated to the DNA damage rate. There was a highly negative correlation between the telomere content and DNA damage rate. In conclusion, increasing the HSP values and DNA damage rate can promote telomere reduction, which led to a decrease in disease resistance and robustness of the chicken. Thus, increasing the stress response was verified to adversely affect the laying performance and viability of chickens.

• Proceedings of the Korean Information Science Society Conference
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• 2005.11b
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• pp.322-324
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• 2005

자가성장 소프트웨어란 동적인 상황 판단에 의거하여 스스로 자신의 기능과 컴포넌트 구성 능력을 성장시키는 소프트웨어를 말한다. 자가성장 소프트웨어는 자신의 환경을 모니터링 하여 사용자에게 적절한 행동을 제공하여 주는 지능형 로봇에 특히 필요하다. 지능형 로봇은 현재 자신이 가지고 있는 소프트웨어로는 해결할 수 없는 상황에 부딪힐 수 있고 이러한 경우 동적으로 소프트웨어 컴포넌트를 획득하여 이용하게 해주는 것이 자가성장 로봇 소프트웨어의 역할이다. 효율적인 컴포넌트의 획득과 관리를 위해 컴포넌트 저장소의 중요성이 부각되고, 자가성장 로봇 소프트웨어를 실현하기 위한 저장소 프레임워크를 ICU의 SemBots 프로젝트에서 개발 중에 있다. 본 논문에서는 저장소를 위한 요구조건과 구조를 기술하고 저장소 시스템을 위한 프로토타입을 제시한다.

• Journal of Korean Society of Environmental Engineers
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• v.35 no.10
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• pp.687-693
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• 2013

Coastal sand dunes have been seriously damaged caused by the development thoughtless for the environment and coastal erosion and destruction due to artificial structures like coast roads and breakwater. Hereupon, in this study we made a library of rhizobacteria that have the plant growth-promoting ability for plant rhizosphere of indigenous plants inhabiting in a coastal sand dune as well as the strong tolerance to salt, and evaluated the plant growth-promoting ability of these strains. Furthermore, we evaluated the effect of rhizobacteria on the growth rate of saline tolerant plants in sandy soil; selected out the most useful micro-organism for the restoration of a damaged sand dune. The effect of inoculation of strains selected from the first experiment on the growth of Peucedanum japonicum and Arundo donaxes planted in a coastal sand dune was evaluated. As a result, Bacillus aerius MH1RS1 had plant growth promoting activities: indole acetic acid (IAA) production, siderophores and 1-aminocyclopropane-1-carboxylate deaminase (ACC deaminase) activity, and also had a salinity tolerance. Also, in case of Peucedanum japonicum, the length of stems and weights of roots were enhanced by the inoculation of B. aerius MH1RS1. Fresh weights of stems and weights of roots in experimental group were, in particular, increased by 25% comparing with the control group. For an Arundo donax in experimental group, plant length increased by 18%, and weight of roots by 20% which is significant.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2004.05a
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• pp.323-326
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• 2004

1990년대 중반이후 급격한 성장을 이룩한 국내 이동통신서비스는 핵심 성공요인과 비즈니스 모델이 해외의 벤치마킹이 되고 있다. 그런데 시장 성숙기의 진입과 제 3세대 기술로의 진화, 번호이동성의 시행으로 인하여 경쟁이 치열하게 전개되고 있으며 유무선 통합 및 디지털 컨버전스라는 새로운 패러다임을 주도해야 하는 전략적 과업을 안고 있다. 이에 따라 국내 이동통신사업자는 내적인 능력의 확충과 우월한 경쟁전략을 바탕으로 경쟁우위를 창출하여야 하며 이는 기업의 지속적인 생존과 수익성 확보의 관건이 된다. 이에 본 연구에서는 국내 이동통신사업자의 기업능력, 경쟁전략, 경쟁우위에 영향을 미치는 요인들을 파악하기 위하여 기업능력과 경쟁전략에 초점을 맞추어 접근하였다. 본 연구 결과에 의하면 마케팅능력이 경쟁전략과 경쟁우위를 형성하는 공통 요인이 되었으나 사업자별로 핵심 능력과 핵심 경쟁전략은 차이가 존재하였다. 본 연구결과를 바탕으로 전략적 시사점을 제언하였다.