• 경영과학
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• 제22권2호
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• pp.35-49
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• 2005

When new services are introduced, interaction among existing and new services has to be considered. The interaction can be characterized by the substitution or complementary effect among services. This paper analyzes how the interaction among services affects the customers' subscription decision in telecommunication services industry. Based on a face-to-face in-depth survey from a sample of 1,200 respondents, a new wireless internet access service or WiBro is analyzed to identify the substitution/complementary effect in relation to the existing other telecommunication services. Additionally, the important factors explaining both customers' subscription and substitution decisions are identified. The analysis results indicate that males and students are more likely to subscribe WIBro service. Interestingly, family size positively affects the subscription decision. However, heavy users of on-line game are reluctant to subscribe WiBro service. Among the potential WiBro subscribers, the customers who are less satisfied with the existing fixed line broadband internet access service are more likely to stop subscribing the fixed line service, which implies substitution by a new service. We believe that the consideration of the interactions among services is essential to devise a winning strategy for the new services in the highly uncertain telecommunications business environment.

• 한국신뢰성학회지:신뢰성응용연구
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• 제17권1호
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• pp.58-65
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• 2017

Different from general operating policies applied for various waiting line situations, two complementary dyadic operating policies are applied alternatingly to a single server maintenance service center model. That is, either of the two dyadic Min (N, T) or Max (N, T) policy is applied to operate such center first and the other operating policy should be applied later, and then the same sequence of both operating policies is followed repeatedly. This operating policy is denoted by the Minimax (N, T) policy. Purpose: Because of the newly introduced operating policy, important system characteristics of the considered service center model such as the expected busy and idle periods, the expected number of customers in the service center and so on should be derived to provide necessary information for determination of the optimal operating policy. Methods: Based on concepts of the newly introduced Minimax (N, T) policy, all necessary system characteristics should be redefined and then derived by constructing appropriate relations between complementary two dyadic operating policies. Results: Desired system characteristics are obtained successfully using simple procedures developed by utilizing peculiar structure of the Minimax (N, T) policy. Conclusion: Applying Minimax (N, T) operating policy is equivalent to applying the simple N and T operating policies alternatingly.

• 보건의료산업학회지
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• 제6권4호
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• pp.267-277
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• 2012

The purpose of this descriptive research is to identify the recognition and attitude of college students towards Complementary & Alternative Medicine (CAM). The subjects of the study were 620 students of a junior college in the D metropolitan city. The data was collected from July 2 to July 31, 2012 and SPSS/WIN 18.0 program was used to analyze the data. From the comparison of CAM recognition between the two groups. There were significant differences for each item of CAM recognition. For the attitude on CAM, there were significant differences between the two groups. There needs to be more follow-up studies based on the current study in order to establish the basic data that can help find specific educational methods for the areas of CAM that lack recognition from the students.

• 한국경영과학회지
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• 제7권1호
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• pp.45-50
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• 1982

The present paper provides a method for solving a complementary programming problem with quadratic objective function subject to linear constraints. The procedure developed is based on the simplex method for quadratic programming problem. An example is added to illustrate the procedure.

• 한국의사학회지
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• 제22권1호
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• pp.69-80
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• 2009

Complementary/alternative medicine has been developed in extremely diverse forms reflecting inter-state historical, cultural differences. As Korean Medicine is institutionally accepted to the same status of Western Medicine, the concept of complementary/alternative medicine needs to be realigned. Data-basing academic level Web Service DBpia, the trend of research in the field of complementary/alternative medicine was analyzed by focusing on 144 treatises listed in the Korean Journal. As the result, we could subgroup treatises as those of concept, category, current status, institutions, details, and miscellany. The treatises related to the answers to "What is Complementary/alternative medicine" apply to the category of 'concept' Likewise in category are listed the treatises covering range and kinds of medicine. In 'category', 'current status', the discussions about the direction of Complementary/alternative medicine pending and treatises dealing with clinical applications are covered. In 'institutions', treatises on policy-making are enlisted. In 'details', treatises applied on specific diseases were sub-grouped. Others not otherwise covered enlisted in the list of "Miscellany".

• 가정∙방문간호학회지
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• 제13권1호
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• pp.24-32
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• 2006

The purpose of this study is to predict the degree of taking the complementary & alternative therapy in the home care nursing service and provide basic data for the application of it. To accomplish this, degree of general recognition of the complementary & alternative therapy, experiences, degree of concern, applicability of the therapy, and educational need should be studied. This study is a descriptive research survey on the home care nurses working at 73 medical centers out of 125 nationwide who provide hospital based home nursing care. The data was collected from Sep. 20, to Oct. 20, 2004 by ChoiHeyran's questionaries (2002). The data was analyzed by the frequency and the percentage. The results of this study are as follows ; 1. The degree of pre-cognition on the complementary & alternative therapy is very high. Information about the therapy was mostly obtained through medias. Home care nurses understand that he desirable treatment is to practice medical treatment and complementary & alternative therapy simultaneously. While 50% of them have already practiced complementary & alternative therapy among their patients. The most commonly used therapy is Acupressure. And Home care nurses have open and positive attitudes about the complementary & alternative therapy as to answer they aye ready to recommend it to their patients. 2. Over half of the Home care nurses met patients taking complementary & alternative therapy. 94.5% of them think scientific diagnosis on the effect of the therapy. advice from the doctor. and the special working staff is required to apply it on to the home care nursing. 3. 68.5% of the Home care nurses have taken education on the therapy through general comprehensive instructions and supplementary. Most of them want to have a opportunity education on the therapy because they want to provide comprehensive nursing and diversified nursing service. The preferred educations are Hand acupuncture, Acupressure & Massage and Aromatherapy, in that order. Based on the above results, the followings are recommended. 1. A study that stipulates the types, applications, and efficiency assessment of the complementary & alternative therapy practiced by Home care nurses in the home care nursing care procedure. And systematic and scientific nursing intervention be developed.

• 대한예방한의학회지
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• 제12권3호
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• pp.141-155
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• 2008

Traditional, complementary, and alternative medicine(CAM) constitutes a major source of health care in developing countries. Its therapies, products and practices are increasing used in industrialized countries, typically by around 50% of the population. However, controls on the provider of CAM services and supply and promotion of complementary medicines are weak in these countries. These trends evoke important public health questions relating to benefits and detriments, safety and quality from medical, financial, and social perspectives. In the western counties, investment in research is increasing, and some guideline is now available for ensuring their quality, efficacy, and safety according to the criteria of evidence-based medicine as legally demanded. National policies and legislation are being developed in many countries and often include partnerships between biomedical and traditional health practitioners. The purposes of the study were to review the policies on CAM, to examine the responses of the government to cope with use of CAM in industrialized countries. Lastly, some implications and recommendation are suggested.

• 대한산업공학회지
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• 제13권2호
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• pp.65-77
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• 1987

Congestion occurs whenever users interfere with each other, while competing for scarce resources. In a congested market, such as a telecommunication service market, users of telecommunication services incur costs in using the service in addition to the price. The user's own time costs involved in learning to use the service, waiting for the service, and making use of the service are typically greater than the price of telecommunication services. A market equilibrium analysis is performed in which a method for user demand aggregation is developed. The effects of price changes on user demands and market demands for congested services are examined. It is found that total market demands may increase as the price for less-congested services increase under certain demand conditions. This suggests that a nonuniform pricing scheme for a congested service may improve the utilization of the congested system. The sign of price cross-elasticity for congested services is show to vary with demand conditions. A possible complementary property of congested services is found and the implication of such a property is discussed. It is argued that such a complementary property may lead to a cross subsidy in a market with congestion. Finally, comparisons between uniform pricing and nonuniform pricing policies are made. A specific numerical example is given to show that a nonuniform pricing policy may be Pareto superior to a uniform pricing policy.

• 한국기록관리학회지
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• 제22권4호
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• pp.151-174
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• 2022

기록 기술은 기록의 검색과 이용에 필수적인 도구로써 기록의 활용에 있어 핵심적이다. 콘텐츠 서비스는 기록의 활용과 콘텐츠의 중요성이 강조되는 현대 사회에서 핵심적인 서비스다. 이 연구에서는 기록 기술과 콘텐츠 서비스를 다른 영역으로 볼 것이 아니라 상호보완적으로 발전할 수 있는 관계로 보았다. 기록 기술이 풍부하게 갖추어져 있으면 이를 기반으로 양질의 콘텐츠를 제작할 수 있고, 이렇게 만든 콘텐츠를 다시 기록 기술과 연계하여 기록 기술을 더욱 풍부하게 만들 수 있다. 이 연구에서는 기록 기술과 콘텐츠 서비스의 상호보완적 관계 밝히고, 이를 기반으로 한 고도화 방안을 제안하고자 한다. 이를 위해 국가기록원과 대통령기록관 웹사이트의 기록 기술 및 콘텐츠 서비스 현황과 문제점을 분석했고, 이와 비교할 모범사례로 영국의 TNA와 미국의 NARA, 서울기록원과 민주화운동기념사업회 오픈아카이브를 선정하였다. 6개의 기관을 분석한 시사점을 바탕으로 기록 기술과 콘텐츠 서비스 각각의 고도화방안과 상호보완적 발전방안을 함께 제안하였다. 이 연구를 통해 기록 기술과 콘텐츠 서비스가 상호보완적 방향으로 발전하길 기대해본다.

• 디지털융복합연구
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• 제11권11호
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• pp.233-242
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• 2013

기술혁신을 하기 위한 R&D에는 많은 시간과 비용이 투입된다. 따라서 기술혁신을 위해 투자된 연구개발 비용에 대한 전유성을 확보하기 위한 전략이 중요하다. 전유성이란 기술혁신에 대한 수익을 배타적으로 보호 확보할 수 있는 정도를 뜻하며 특허(patent), 영업비밀(secrecy), 리드타임(lead time advantage), 보완적 판매 및 서비스(complementary sales & service), 보완적 제조(complementary manufacturing) 등 5가지의 전유 메커니즘(appropriability mechanism)이 있다. 본 연구에서는 국내 소프트웨어 산업의 전문가들을 대상으로 어떠한 전유성 확보전략을 취하고 있는지에 대하여 설문조사를 하였고, 쌍대비교 기법을 통해 각 요인들의 우선순위를 도출하여 선행연구와 비교하였다. 분석 결과, 국내 IT 제조기업에서는 영업비밀, 특허, 리드타임, 보완적 판매 및 서비스, 보완적 제조의 순으로 전유 메커니즘을 선호하고 있음을 확인하였다.