• 한국정보통신설비학회:학술대회논문집
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• 2007.08a
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• pp.55-58
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• 2007

An adaptive subcarrier allocation scheme based on comparative superiority of opportunity cost between groups is proposed for the enhancement of system capacity and its simple implementation at the base station of a multiuser OFDM system. The proposed algorithm is similar to the blockwise or the decentralized subcarrier allocation algorithm proposed by Xiaowen et al and Alen et al, respectively. In the proposed algorithm, however, all subcarriers are grouped according to the coherence bandwidth and the comparative superiority concept, which swaps the groups between users if the system capacity is increased, is adopted for the enhancement of system capacity. In addition, the proposed algorithm provides a simple solution for the conflict problem among users by reallocating only the conflicted groups and unassigned groups instead of reallocating entire groups. Simulation results demonstrate that the proposed algorithm increases the system capacity effectively over a static, an adaptive blockwise, and a decentralized subcarrier allocation algorithms.

• The Korean Journal of Community Living Science
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• v.13 no.1
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• pp.25-40
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• 2002

Recently the rural women's role has been changed from assisting men to leading major farm work. However, contribution of women in the rural area has not beers fairly evaluated. Hence, it has been difficult for the rural women to receive the reasonable compensation if they injured, had some disasters or were divorced. Therefore this study tried to suggest economic methods such as market cost approach, opportunity cost method and shadow wage method for evaluating rural women's labor. It might provide some information for helping to establish the status of rural women as a income earner through estimating money value of labor contributed by rural women and furthermore, be useful information to improve the efficiency of farm labor by exploring the relationship between value of labor and actual income. Hence, it might help improve the economic situation and life at home of rural women, solve difficulties in the real life and reduce disparity of economic distribution between urban and rural area.

• Journal of Technology Innovation
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• v.12 no.1
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• pp.115-134
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• 2004

In this paper, we tried to find the bottleneck factors of firms' innovative activities using the KIS (Korea Innovation Survey) 2002 data. Employing the method of factor analysis, we identified five bottleneck factors of innovative activities: organizational bottleneck factor, innovative bottleneck factor, economic bottleneck factor, supply-chain bottleneck factor, and market-environment bottleneck factor. Using regression analysis which includes the five bottleneck factors, industry characteristics variables (market concentration, technological opportunity, appropriability), and other control variables, we found (1) that all the five bottleneck factors are negatively related with innovative activities, (2) that technological opportunity and appropriability conditions are positively related with innovative activities, (3) that there is an inverted-U relationship between market concentration and innovative activities, and (4) that firm size has no significant influence on firms' innovative activities.

• Journal of Fisheries and Marine Sciences Education
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• v.25 no.6
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• pp.1419-1428
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• 2013

This Study is to suggest marine tourism development strategy of Yeosu city using a A'WOT analysis technique. Main findings of this study are summarized as following. First, SO(strength-opportunity) strategy is considered as the most important strategy and followed by ST(strength-threat), WO(weakness-opportunity) and WT(weakness-threat) strategy. Second, it can be concluded that marine tourism facility and contents development is considered as the most important factor and followed by marine sport-related marine training program development and so on. For further research, more concrete and empirical study is to be performed by each strategy in the future.

• The Bulletin of The Korean Astronomical Society
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• v.39 no.2
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• pp.40-40
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• 2014

Through KASI, Korean astronomers will have access to the Gemini Observatory starting in 2015. Gemini operates two optical/infrared 8m-class telescopes: one on the northern hemisphere in Hawaii, one on the southern hemisphere in Chile. Both are equipped with state of the art instruments and adaptive optics systems that will be presented. Gemini also offers the opportunity for instrument development and welcomes visiting instruments. In terms of operations, Gemini offers to its partners three ways of applying for time: through semester-basis calls for standard programs, through yearly calls for Large and Long Programs, and through monthly calls for fast turnaround programs. Gemini operates in queue mode (observing for the principal investigators and allowing flexibility in the time domain), as well as in the classical visitor mode (where principal investigators come to the telescope). I will explain the requirements and advantages of all these modes as well as a full update on the Gemini Observatory.

• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.3-3
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• 2008

The TFT-LCD industry has shown dramatic growth by making technological advances and satisfying consumer needs. It now stands at the heart of the display industry. However, the TFT-LCD market is maturing and is unlikely to sustain the fast pace of growth in years to come. There has been an oversupply in the LCD sector entering 2008 due to capacity expansion aimed at fueling growth coupled with softening demand amid the global economic slowdown and recent financial turmoil. The LCD industry has successfully coped with oversupply on several occasions. Each time, LCD makers faced up to the challenge and responded with a pioneering spirit. They continued to grow by turning crisis into opportunity. LG Display aims to create new markets by developing products based on innovative technology and providing more attractive products through a value-added product planning that incorporates consumer needs. Through a continuous cost innovation targeted at stimulating demand by making products more economical to consumers, we will be at the forefront of overcoming the current oversupply and sustaining robust growth for the TFT-LCD industry. Depending on our management of the situation, the current oversupply could prove to be an opportunity to create even bigger markets for the future.

• Journal of the Korean Data and Information Science Society
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• v.18 no.4
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• pp.891-902
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• 2007

It has been 12 years since PIFF is first started. PIFF is first started in 1966 to provide opportunity for audiences who love movies could actively participate in visual culture and opportunity for Korean movies could stand out in the world by showing internationally recognizable movies. To make energetic film culture in Korea, there should be thoughtful analysis on old PIFF and effort to solve the problem. For this reason, we researched on audience trend and satisfaction level who participated in 12th PIFF to find out hidden problem of PIFF, and provide a good direction which could solve the given problem.

• Proceedings of the KSR Conference
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• 2010.06a
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• pp.352-358
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• 2010

When the Trans-Korea Railway (Gyeong-eui Line and Dong-hae Line) initiative is completed, Korea will become one of the major trading partners of Russia through the Trans-Siberian Railway (TSR). This will be an opportunity for Korea to take-off to a 'Traffic and Logistics Center in 21st Century. The opening of the Eurasia Continental Railway will provideKorea with the opportunity to develop into the logistics center of Asia-Pacific area and the benefit of reduced cost of unification by improving the correlation between South and North Korea through the cooperation in railway business. However, there exist the uncertainties for its demand and innovative reduction in transportation time and cost, due to the practical problems including economic efficiency and transportation technology. In this paper, the practical problems of TSR are discussed in the economic and social perspectives to develop the methodology for the Korea-Russia railway cooperation and for the improvement of the competitive power of TSR.

• Proceedings of the Korea Society of Poultry Science Conference
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• 2003.07b
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• pp.9-20
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• 2003

Predicting the future is at once both an opportunity and a challenge. Predicting what changes will take place in the poultry industry over the next century is certainly an opportunity to review the past and use this as a means of predicting the future. As the poultry industry became commercialized only during the last 50 to 60 years. the developments that will take place in the next 50 years will no doubt be phenomenal. (omitted)

• Health Policy and Management
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• v.12 no.3
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• pp.36-53
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• 2002

The purpose of this study is to investigate the determinants of intent to leave of hospital pharmacists. The independent variables contain three groups of determinants: environmental variables(job opportunity and external support), psychological variables(met expectations, growth desire, self-efficacy, and positive/negative affectivity) and structural variables (power, legitimacy, job variety, job significance, workload, physical environment, job security, pay, internal support, job growth, and promotional chances). The sample used in this study consists of 252 pharmacists working at hospitals in Seoul City, Inchon City and Kyunggi Province. Data were collected with self- administered questionnaires from Oct. 24 to Nov. 14 in 2001 and analyzed using path analysis. The results of this study indicate that the following variables, listed in order of size, have significant negative effects on intent to leave of hospital pharmacists; met expectations, organizational commitment, job satisfaction, promotional chances, and job variety. Job opportunity was found to have significant positive effect on the intent to leave of hospital pharmacists. Implications for hospital administrators and discussions for further research were suggested.