• 정보과학회지
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• 제29권10호
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• pp.8-15
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• 2011

• 한국어업기술학회:학술대회논문집
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• 한국어업기술학회 1997년도 수산관련공동학술대회발표요지집
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• pp.359-359
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• 1997

• 정보화연구
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• 제11권4호
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• pp.393-407
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• 2014

박근혜 정부의 국가정보화 비전과 구상이 제 5차 국가정보화 기본계획(2013-2017)으로 발표된지 1년 여가 경과했음에도 불구하고 현재까지 이에 대한 비판적 검토나 논의를 찾기 힘들다. 정보화 기본계획이 이처럼 정책적 논의를 촉발시키지 못하는 무기력한 정책선언(policy statement)이 되는 이유는 통상 기본계획이 각 정책주체들이 제안하는 당위론적 정책과 전략 과제들의 무분별한 나열에 그치기 때문이다. 본 연구는 정보화 기본계획이 가진 정책적 피상성(superficiality)을 극복하는 방안으로 '인식구조' 차원의 정책분석을 제안하였다. 이를 위해 정책을 하나의 논증(argument)으로 놓고 정책 논증구조와 그 이면에 작동하는 인식론적 전제와 가정들을 포착하였다. 다음 이들을 강력한 반박논리(rebuttal)에 노출시켜 정보화 정책의 인식론적 실체를 밝히고 향후 정보화 정책 논의에 대한 함의와 시사점을 살펴보았다. 분석 결과에 따르면 현재 국가정보화 정책은 테크놀로지 공급, 소비, 성과의 세 인식론적 축을 중심으로 전개되고 있다. 테크놀로지 공급에 있어서는 정부가 공공재로서의 테크놀로지 공급의 역할과 책임이 있다는 테크놀로지-공급자 전제와 테크놀로지는 그 자체로 수요를 창출한다는 테크놀로지-푸시 전제가 작동하고 있다. 테크놀로지 소비에 있어서는 테크놀로지는 사회 변화를 추동하고 주도한다는 테크놀로지-주도(driven) 사회에 대한 전제와 테크놀로지는 그 자체로 이러한 사회 변화를 결정한다는 테크놀로지 결정론적 관점이 작동하고 있다. 테크놀로지 성과에 있어서는 테크놀로지 수준이 국민복리와 국가번영을 결정한다는 테크놀로지 유토피아적 전제에 기반하고 있다. 본 연구는 이렇게 파악된 제반 인식론적 전제와 가정들을 다양한 반박논리(Rebuttal)에 노출시키고 그 정책적 함의와 시사점을 논하였다. 본 연구는 인식구조 분석이라는 새로운 정보화 정책분석 차원과 분석방법을 제시했다는데 의의가 있다. 반면 인식론적 차원의 논의가 가지는 주장의 자의성과 추상성은 본 연구의 한계로 작용한다.

• 보건행정학회지
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• 제19권1호
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• pp.62-80
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• 2009

The purpose of this study was to examine the factors influencing the attitude toward the increasing role of private health insurance(PHI). In the Korea Welfare Panel Data 2007, a sample of 1,675 (adjusted by weight value: 1,607) respondents on an opinion on promoting PHI was used in the study. With independent variables including socio-demographic characteristics, health status, health-related behavior, and opinions on welfare service, ordered-probit model was used to analyze the attitude toward PHI. Negative opinion on the increasing role of PHI were responded by 54.6%(n=877) of the respondents, whereas 22.2%(n=373) were positive and 23.2%(n=357) were neutral. Old people, the better off, those with worse self-assessed health status, and those having an experience of health examination tend to have the positive attitude toward the increasing role of PHI. Women, those with chronic diseases or disorders and those who do not agree that comprehensive welfare benefits reduce work incentive showed negative attitude toward PHI. When comparing the needs for PHI before and after medical utilization, ex-ante need tends to strengthen the tendency to support private health insurance. This study will contribute to the discussion on the optimal mix of public and private health insurance in Korea by a better recognition of attitude toward PHI and health care system.

• 보건행정학회지
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• 제18권3호
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• pp.128-146
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• 2008

Nonlinear pricing abounds in practice because it is a potentially powerful pricing method to explore consumer surplus. The various forms of nonlinear pricing are feasible within a given industry. In this context, it is important for manufacturers and retailers to understand which nonlinear pricing scheme is appropriate to apply in their specific situation and which nonlinear pricing schedule is the most profitable in their market situation. Although the merits of nonlinear pricing are well documented, the attempt to apply nonlinear pricing in medical service has been relatively rare. The researcher aims to try to full this gap by applying a practice-oriented simulation model to health examination data. We compare the sales volumes among nonlinear pricing scheme such as n-block tariff, two-part tariff, and uniform pricing. We found that n-block tariff outperforms two-part tariff and uniform pricing.

• 보건행정학회지
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• 제32권2호
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• pp.180-189
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• 2022

Background: Social support contributes directly and indirectly to maintaining physical, mental, and social well-being. The aim of the study was to identify the impact of social support on self-rated health among Korean industrial accident workers. Methods: This study used data from the panel study of workers' compensation insurance (PSWCI). The final subjects were 2,759 workers who responded to a 2018 to 2020 PSWCI. Social support was defined as social contact with friends, neighbors, family, and social participation activities like religious activity, social activity, and club activity. Multivariate logistic regression analysis was performed to investigate causal relationships between social support and self-rated health using a generalized estimating equation model. Results: Proportion of workers' good self-rated health steadily increased (2018: n=1,447, 63.2%; 2019: n=1,542, 66.2%; 2020: n=1,653, 67.3%). Higher levels of social contacts with friend (worse: reference; same: β=0.442) and higher levels of social activity (yes: reference; no: β=-0.173) were especially associated with good self-rated health. Conclusion: This study confirmed social support positively influenced self-rated health among the self-rated health of industrial injured workers. The results of this study suggested that recovery policies that the government served should include programs enhancing social support for improving health among industrial injured workers.

• Environmental Engineering Research
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• 제19권1호
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• pp.75-81
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• 2014

Methanotrophic denitrification under a non-aerated condition (without external supply of oxygen or air) was investigated in a bioreactor coupled with a membrane diffuser. Batch experiment demonstrated that both methane consumption and nitrogen production rates were not high in the absence of oxygen, but most of the nitrate was reduced into $N_2$ with 88% recovery efficiency. The methane utilized for nitrate reduction was determined at 1.63 mmol $CH_4$/mmol $NO_3{^-}$-N, which was 2.6 times higher than the theoretical value. In spite of no oxygen supply, methanotrophic denitrification was well performed in the bioreactor, due to enhanced mass transfer of the methane by the membrane diffuser and utilization of oxygen remaining in the influent. The denitrification efficiency and specific denitrification rate were 47% and 1.69 mg $NO_3{^-}-N/g\;VSS{\cdot}hr$, respectively, which were slightly lower than for methanotrophic denitrification under an aerobic condition. The average concentration of total organic carbon in the effluent was as low as 2.45 mg/L, which indicates that it can be applicable as a post-denitrification method for the reclamation of secondary wastewater effluent. The dominant fatty acid methyl ester of mixed culture in the bioreactor was $C_{16:1{\omega}7c}$ and $C_{18:1{\omega}7c}$, which was predominantly found in type I and II methanotrophs, respectively. This study presents the potential of methanotrophic denitrification without externally excess oxygen supply as a post-denitrification option for various water treatment or reclamation.

• 산업경영시스템학회지
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• 제32권3호
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• pp.71-77
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• 2009

Using the results of the expected busy periods for the dyadic Min(N, D) and Max(N, D) operating policies in a controllable M/G/1 queueing model, an important relation between them is derived. The derived relation represents the complementary property between two operating policies. This implies that it could be possible to obtained desired system characteristics for one of the two operating policies from the corresponding known system characteristics for the other policy. Then, upper and lower bounds of expected busy periods for both dyadic operating policies are also derived.

• 디지털융복합연구
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• 제12권5호
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• pp.255-261
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• 2014

본 논문은 모바일 웹앱 환경에서의 N-스크린 활용에 관한 연구를 통하여 향후 모바일 웹앱 환경에서 제이쿼리 모바일 기반의 시스템 설계 및 구현을 제안하는데 있다. 현재 클라우드 컴퓨팅 시대에서 대표적인 서비스 형태가 N-스크린이다. N-스크린 시대를 가속화 시키는 요인은 사용자들이 모든 디바이스들에 대하여 만능의 기능을 요구하고 있다. 그러나 이러한 상황은 동일한 사용자 경험을 원하는 이용자들의 욕구에 반하는 것이며 N-스크린 시대는 이러한 이질적인 서비스를 용납하지 않는다. 따라서 본 연구에서는 제이쿼리 모바일 환경에서 N-스크린 기반의 영화예매 시스템을 구현하여 파일럿 시스템 분석 및 설계의 구조와 프레임워크를 제시하고자 한다.

• Journal of applied mathematics & informatics
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• 제15권1_2호
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• pp.511-525
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• 2004

we model communication and computer systems that process interactive and several and several types of background jobs. The scheduling policy in use is to share the processor among all interactive jobs and, at most, one background job of each type at a time according to the process sharing discipline. Background jobs of each type are served on a first-come-first-served basis. Such scheduling policy is called Processor Sharing with Background jobs (PSBJ). In fact, the PSBJ policy is commonly used on many communication and computer systems that allow interactive usage of the systems and process certain jobs in a background mode. In this paper, the stability conditions for the PSBJ policy are given and proved. Since an exact analysis of the policy seems to be very difficult, an approximate analytic model is proposed to obtain the average job sojourn times. The model requires the solution of a set of nonlinear equations, for which an iterative algorithm is given and its convergence is proved. Our results reveal that the model provides excellent estimates of average sojourn times for both interactive and background jobs with a few percent of errors in most of the cases considered.