• Information Systems Review
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• v.12 no.3
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• pp.75-88
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• 2010

Business models in open market systems targeting smart phone users are determined by several important factors. First, by providing developers efficient technical platforms, it contains a setting for developers to learn, apply and improve the skills relating to the product category easily while they stay beyond a corporate boundary. Second, by the first condition, a huge population of talented developers becomes to join a specific open market where will invite more customers to use their applications. Hence it will attract more and more developer participants who will finally give a rise to a persistent market growth. Third, the evaluation system between platform providers and application producers, and one between application producers and application users may underlie the trust relationships between them. The research conducted a multiple embedded case study to test the success factors of open market based business models. It focused on smart phone game communities that have installed user evaluation, and feedback systems. The user innovation empowerment model within the social game networks has highlighted the theories on the roles and characteristics of lead users, and lead user network behaviors for future NPD participations.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.239-243
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• 2002

Since 1990s, many companies or enterprises have been interested in Career Development or Career Management of Personnel in Korea. In the result of those interesting, some companies developed or built a program or computer system on Career Development or Career Management for their personnel. But their systems or programs are just the level to mange what kind of on-the-job training taken, ones experience where he or she worked, one who has a certificate of qualification ring a position and etc. This is not fit the field of construction industry and is not sufficient to mange workers at a construction company and their career. Because a construction project success depends on ones ability including know-how, skill and experience and these dependence is higher than any other industry's projects. The level of management on the career of construction company's personnel should be lower and expended than now and the career management of a construction company should include individual experience and personal history(period attained a project or a work, what kind of project or work, and etc)attained in performing each construction project and show ones career development process to each person. This system gives participants a chance to educate oneself and evaluate the level of ones training by showing individual records to each member of staff. And the company gains the advantage of the staffs ability to easily solve problems as well as the improvement of the organizations capabilities.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.9 no.6
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• pp.231-244
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• 2014

Domestic recessions, business restructurings, voluntary resignations and youth unemployment crises have fueled competition in the start-up market, and business start-up is increasingly incited as a means to make a living under circumstances. However, ill-prepared business start-ups result in bankruptcy. Profound knowledge and skills are required for successful start-up. A successful entrepreneur of a business is often not born but made. The purpose of this study was to examine the success factors of successful venture entrepreneurs in an effort to make some suggestions on entrepreneurship education. After the characteristics of the selected successful venture entrepreneurs were analyzed, 18 items were selected as their success factors, and the following six things were presented as what should be taken into account in relation to the competency of a successful entrepreneur: First, achievement-needs characteristics and goal-oriented characteristics that belong to the characteristics of entrepreneurs could be educationally taken advantage of in entrepreneurship education. Second, achievement-needs characteristics are an educational element of the preparatory stage, and goal-oriented characteristics are an educational element for business administration after starting a business. Third, hands-on experience is mandatory since learning by experience is quite important for entrepreneurs. Fourth, entrepreneurship education is more effective when it targets the younger generations. Fifth, the kind of educational support that is to assess the entrepreneurship of prospective entrepreneurs to help them improve their overall entrepreneurship is required. Finally, entrepreneurship education should be offered by a person with experience of setting up a business so that he or she could inform learners of their practical experience and knowhow.

• 대한공업교육학회지
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• v.38 no.1
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• pp.275-297
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• 2013

Invention Teacher Education(ITE) is composed of Invention Contents Standards(ICS) and Invention Education Standards(IES). The purpose of this study is to developing ICS of ITE. To achieve the goal, we used the methods of research; analyzing advanced research, content analysis, development, survey, verify the validity. The research results of this study is summarized as follows. ICS is composed of 10 large areas; the concept and characteristic of invention, invention and society, invetion in living, creativity development, invention and design, invention and solving problem, convergence of knowledge and invention, invention project, intellectual properties and patent application, invention and management of technology. 10 large areas has 20 core contents and 90 subordinate elements. ICS will be based on the academic of developing programming besides it will be reference of standards in the case of progressing invention education.

• Journal of Science Education
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• v.44 no.1
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• pp.61-73
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• 2020

Teachers are the most important factor contributing to determining the quality of education. Therefore, the quality of teachers should be improved to enhance the quality of education. Teacher's competencies are defined as the skills required for teaching profession, that is, the ability to perform not only in teaching activities, but also in guidance and class management. The purpose of this study is to analyze the competencies of science teachers that elementary, middle and high school students want. To this end, 332 elementary, middle and high school students were asked to describe their preferred science teacher's competencies and avoiding science teacher's competencies as an open questionnaire. The resulting concepts were analyzed by semantic network analysis (SNA). The results of this study are as follows: 1) The competencies of science teachers that students prefer varied. This suggests that most students think positively about science teachers. In addition, it is possible to show students the positive or preferred competencies of teachers in various ways. 2) The students wanted teachers to explain the theories and concepts related to scientific phenomena through experiments. They also preferred hands-on activities and experience in science class. 3) The students put emphasis on the class-related contents in the competencies of science teachers. Accordingly, the image of science teachers and science itself should be enhanced through the improvement of science teaching methods and positive attitudes toward students. It is expected that further research on the image according to specific teaching methods of science teachers will be conducted based on the findings of this study.

• Information Systems Review
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• v.10 no.2
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• pp.71-96
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• 2008

Interactive Video Service(IVS) is a new type of media service that enables users to interact with others in the process of casting and watching videos in a system. 'Timing flexibility', which divides IVS into real-time IVS and non-real-time IVS, is one of the significant factors of interactivity. The objective of this study is to identify critical factors of interactivity in IVS and to compare their effects in terms of timing flexibility. To achieve the objective, prior literature has been reviewed to establish a theoretical framework, and twelve active users of IVS have been interviewed to develop research model of IVS. Finally, an online survey has been conducted to verify the research model. The results indicate that Technical Factor, Communication Factor, and Contents Factor of IVS are found to be the important interaction factors in IVS; and their impacts on the intention to use IVS were found to be affected by timing flexibility. This paper ends with theoretical and practical implications of study results.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.41 no.2
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• pp.250-256
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• 1996

In order to estimate production cost of rice per ha of large farm, a detail survey of 104ha farm was made in 1994. Amount of labor input and labor cost per ha was calculated as 270, 000won and 108hours. Direct production cost of the farm was 1, 092, 000won(l00) and was lower than that of average farms 2, 067, 000won(189) in Korea. But it still was higher than that of Sac1amento farms 717, 000won(66) and that of Buter Area's, 845, 000won(77). It seems feasible to cut down the cost about 10~15% provided the labor and machinery may be used more efficiently. Some cost down may also be possible on marketing and processing sectors. Therefore it may not be pessimistic in competing with U.S. rice farms if we establish 100ha size well managed and arranged farms in Korea.

• Archives of design research
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• v.15 no.4
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• pp.1-14
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• 2002

In the past, companies concentrated their efforts on developing new technologies and producing new products. But new technologies in this information age do not make difference any more comparing to other companies. In this marketing environment, a company must appeal strongly their own image to the customers' brains to make better difference than other companies do. One of the best way to make their own image in the customer's brains might be outgrowing themselves of the one-way communication such as the printed-media or broadcast-media and preparing some space such as advertisement halls or pavilions where customers and companies meet each other and make mutual communications between both of them. Therefore, we need to study systematically on the design elements in the advertisement halls or pavilions. To begin with, we should lully understand the basic idea by looking up the reference literature. We case-studied on the basic of constructive elements of advertise halls of both SAMSUNG and LG Electronics Co. The purpose of this study is to realize that we can transfer effectively the company's image to the customers only if we fully understand company's business philosophy and vision in advance to start design the advertisement hails. We should also realize that it is also important to manage systematically the company's design strategic elements' to achieve its changing goals in more logical and scientifically way.

• Environmental and Resource Economics Review
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• v.29 no.3
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• pp.363-388
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• 2020

The purposes of this study are to not only estimate optimal harvests and efforts using the surplus production methods for Spanish mackerel caught by multiple fishing gears, but provide dynamic optimal fisheries management for these gears using the current value Hamiltonian method. To achieve the above purposes this study uses several models such as Gavaris's general linear model for standardizing fishing efforts, surplus production method for estimating biological and technological coefficients, current value Hamiltonian method for estimating dynamic optimal harvest and efforts, and sensitivity analysis for diagnosing economic influences of these fisheries. As a result, this study showed that Spanish mackerel was overfished by multiple fishing gears based on surplus production method and the current value Hamiltonian method. Also, this study found that when the price and cost proportionally changed, the optimal harvest and fishing effort sensitively responded to the stock level of Spanish mackerel. Next, this study suggested that the multiple fishing gears for Spanish mackerel should reduce unnecessary costs such as operating time or inefficient fuel consumption. Finally, this study provided reasons Spanish mackerel should be included in the TAC system in a view of profit maximization based on sustainable use of the Spanish mackerel.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07b
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• pp.265-267
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• 2005

DNA 컴퓨팅은 분자 수준(molecular level)에서 연산을 수행한다. 따라서 일반적인 실리콘 기반의 컴퓨터에서와는 달리, 순차적인 연산 제어를 보장하기 어렵다는 특징이 있다. 그러나 DNA 컴퓨팅은 화학반응에 기초한 연산이기 때문에, 실험자가 의도한 연산을 많은 수의 분자에 동시에 적용할 수 있으므로 실리콘 기반의 컴퓨터와는 비교할 수 없는 병렬 연산을 구현할 수 있다. 병렬 연산을 구현하고자 할 때, 일반적으로 연산에 사용하는 모든 DNA 분자들을 대상으로 연산을 구현할 수도 있다. 그러나 전체가 아닌 일부의 분자들을 상대로 연산을 수행하는 것 역시 가능하며 이 때 자연스러운 방법으로 사용할 수 있는 방법이 배깅(Bagging)이나 부스팅(Boosting)과 같은 앙상블(ensemble) 계열의 학습 방법이다. 일반적인 부스팅과 달리 가중치를 부여하는 것이 아니라 특정 학습자(learner)를 나타내는 분자들을 증폭한다면 가중치를 분자의 양으로 표현하는 것이 가능하므로 분자 수준에서 앙상블 계열의 학습을 구현하는 것이 가능하다. 본 논문에서는 앙상블 계열의 학습 방법 중 특히 부스팅의 효과를 DNA 컴퓨팅에 응용하고자 할 때, 어떤 방법이 가능하며, 표현 과정에서 고려해야 할 사항은 어떠한 것들이 있는지 고려하고자 한다. 본 논문에서는 규모를 사전에 한정할 수 없는 진화 가능한 그래프 구조(evolutionary graph structure)를 학습할 수 있는 방법을 찾아보고자 한다. 진화 가능한 그래프 구조는 기존의 DNA 컴퓨팅 방법으로는 학습할 수 없는 문제이다. 그러나 조합 가능한 수를 사전에 정의할 수 없기 때문에 분자의 수에 상관없이 동일한 연산 시간에 문제를 해결할 수 있는 DNA 컴퓨팅의 장정을 가장 잘 발휘할 수 있는 문제이기도 하다.개별 태스크의 특성에 따른 성능 조절과 태스크의 변화에 따른 빠른 반응을 자랑으로 한다. 본 논문에선 TIB 알고리즘을 리눅스 커널에 구현하여 성능을 평가하였고 그 결과 리눅스에서 사용되는 기존 인터벌 기반의 알고리즘들에 비해 좋은 전력 절감 효과를 얻을 수 있었다.과는 한식 외식업체들이 고객들의 재구매 의도를 높이기 위해서는 한식 외식업체의 서비스요인, 식음료요인, 이벤트 요인 등을 강화함으로써 전반적인 종사원 서비스 품질과 식음료품질을 높이는 전략을 취해야 한다는 것을 시사해주고 있다. 본 연구는 대구 경북소재 한식 외식업체만을 대상으로 하여 연구를 실시하여 연구의 일반화와 한식 외식업체를 이용하는 이용 고객들이 한식 외식업체를 재방문하는 재구매 의도가 발생하는데 있어 발생하는 과정을 설명하는 종단적 연구를 실시하지 못한 한계점을 가지고 있다.아직 산업 디자인이 품질경쟁력에 크게 영향을 미치는 성숙단계에 이르지 못하였음을 의미한다. (2) 제품 디자인에게 영향을 끼치는 유의적인 변수는 연구개발력, 연구개발투자 수준, 혁신활동 수준(5S, TPM, 6Sigma 운동, QC 등)이며, 제품 디자인은 우선 품질경쟁력을 높여 간접적으로 고객만족과 고객 충성을 유발하는 것으로 추정되었다. 상기의 분석결과로부터, 본 연구는 다음과 같은 정책적 함의를 도출하였다. 첫째, 신상품 개발과 혁신을 위한 포괄적인 연구개발 프로젝트를 품질 경쟁력의 주요 결정요인(제품의 기본성능, 신뢰성, 수명(내구성) 및 제품 디자인)과 연계하여 추진해야 할 것이다. 둘째, 기업은 디자인 경영 마인드 제고와 디자인 전문인력 양성을, 대학은 디자인 현장 업무를 통하여 창의력 증진과 기획 및 마케팅 능력 교육을, 정부는 디자인 기술개발 및 디자인 교육지원의 강화를 통하여 각각 디자인 경쟁력$\righta