• 영재교육연구
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• 제27권1호
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• pp.59-80
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• 2017

본 연구에서는 영재로 선정되어 영재교육을 받은 학생들의 사회성을 이해하기 위해 최후통첩게임 및 유한반복공공재게임을 이용하여 사회적 딜레마 상황에서 이들의 사회적 행동 및 상호작용유형을 분석했다. 이를 위해 서울시내 소재 영재교육원에서 영재교육을 받고 있는 영재집단 132명과 비교를 위해 일반집단 72명을 대상으로 실험을 실시하였다. 최후통첩게임 실험결과 두 집단 모두에서 제안율이 37~38%로 기존의 연구결과와 유사하게 나타났으며 영재집단도 일반적인 정도의 사회적 선호를 지녔다고 해석되었다. 최후통첩게임의 적은 제안에 대한 거부율은 영재집단에서 월등히 높게 나타났는데, 영재집단에서 자신의 비용을 들여서라도 공정하지 못한 상대방을 처벌하고자 하는 부(-)의 상호성이 강한 것으로 해석되었다. 유한반복 공공재게임의 실험결과에서는 기존의 관련 연구와 마찬가지로 두 집단 모두 초반부 기여율이 높다가 후반부로 갈수록 낮아지는 현상이 지속적으로 나타났다. 하지만 두 집단에서 실험집단 내 다른 구성원과의 상호작용 패턴이 다르게 나타났다. 상호작용 패턴을 5가지로 분류해 분석한 결과, 영재집단이 일반집단보다 실험집단 내 개별 구성원들의 공공재에 대한 기여율을 높여 추후에 자신의 기대이익을 높이고자 하는 전략적 협조를 하는 경향이 높은 것으로 나타났다. 영재집단에서 전략적 협조자의 빈도가 높게 나타난 것은 일반집단에 비해 그들이 실험 집단 내 구성원들과의 상호작용으로 자신의 기대 보수를 크게 만드는데 관심을 두기 때문인 것으로 해석된다.

• Strategy21
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• 통권44호
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• pp.5-27
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• 2018

The purpose of this paper is to look at USN's efforts to rebuild its combat power in the face of a reemergence of great powers competition, and to propose some recommendations for the ROKN. In addition to the plan to augment its fleet towards a 355-ships capacity, the USN is pursuing to improve exponentially combat lethality(quality) of its existing fleet by means of innovative science and technology. In other words, the USN is putting its utmost efforts to improve readiness of current forces, to modernize maintenance facilities such as naval shipyards, and simultaneously to invest in innovative weapons system R&D for the future. After all, the USN seems to pursue innovations in advanced military Science & Technology as the best way to ensure continued supremacy in the coming strategic competition between great powers. However, it is to be seen whether the USN can smoothly continue these efforts to rebuild combat strength vis-a-vis its new competition peers, namely China and Russian navy, due to the stringent fiscal constraints, originating, among others, from the 2011 Budget Control Act effective yet. Then, it seems to be China's unilateral and assertive behaviors to expand its maritime jurisdiction in the South China Sea that drives the USN's rebuild-up efforts of the future. Now, some changes began to be perceived in the basic framework of the hitherto regional maritime security, in the name of declining sea control of the USN as well as withering maritime order based on international law and norms. However, the ROK-US alliance system is the most excellent security mechanism upon which the ROK, as a trading power, depends for its survival and prosperity. In addition, as denuclearization of North Korea seems to take significant time and efforts to accomplish in the years to come, nuclear umbrella and extended deterrence by the US is still noting but indispensible for the security of the ROK. In this connection, the naval cooperation between ROKN and USN should be seen and strengthened as the most important deterrents to North Korean nuclear and missile threats, as well as to potential maritime provocation by neighboring countries. Based on these observations, this paper argues that the ROK Navy should try to expand its own deterrent capability by pursuing selective technological innovation in order to prevent this country's destiny from being dictated by other powers. In doing so, however, it may be too risky for the ROK to pursue the emerging, disruptive innovative technologies such as rail gun, hypersonic weapon... etc., due to enormous budget, time, and very thin chance of success. This paper recommends, therefore, to carefully select and extensively invest on the most cost-effective technological innovations, suitable in the operational environments of the ROK. In particular, this paper stresses the following six areas as most potential naval innovations for the ROK Navy: long range precision strike; air and missile defense at sea; ASW with various unmanned maritime system (UMS) such as USV, UUV based on advanced hydraulic acoustic sensor (Sonar) technology; network; digitalization for the use of AI and big data; and nuclear-powered attack submarines as a strategic deterrent.

• 한국전자거래학회지
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• 제26권4호
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• pp.119-131
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• 2021

플랫폼 비즈니스의 급속한 성장과 함께 디지털 트랜스포메이션은 기업의 가장 중요한 화두로 부상하였으며, 기업에게 있어 더 이상 선택사항이 아닌 생존을 위한 필수전략이 되었다. 많은 기존 기업들은 디지털화를 위하여 필사의 노력을 하고 있다. 관련된 많은 연구들이 있었지만, 아직 대부분 사례 분석들을 통한 개념적 모델 수준의 연구들에 머물고 있다. 본 연구의 목적은 디지털 트랜스포메이션의 기반이 되는 플랫폼 비즈니스 모델을 중심으로 트랜스포메이션을 통해 획득할 효익의 근간이 되는 데이터의 통합 및 증가되는 네트워크 효과의 효익을 학술적, 체계적으로 분석해 보고자 하는 것이다. 플랫폼 기반 변화는 내부의 효율성 강화와 외부적 확장으로 구분할 수 있다. 내부적으로는 기업의 내부 데이터가 결합되고 다시 의사결정 및 실행과 결합되도록 하는 데이터 구조 개선 및 조직의 개선이 필요할 것이며, 외부적으로는 플랫폼 비즈니스 모델 기반 사업 구현으로 보다 많은 소비자의 외부 데이터를 결합, 활용하는 구조를 세워 신사업 개척, 소비자 행동 예측을 위한 가치를 높여야 할 것이다. 디지털 트랜스포메이션이 성숙되지 않은 상황에서, IT인프라가 가장 구조적으로 앞서 있는 금융산업은 가장 먼저 산업적으로 이상을 실현할 수 있는 산업으로 기대되고 있다. 외부 데이터 결합 사업을 위하여 금융 기업들은 다양한 시도들을 하고 있으며, 좋은 결실을 맺는다면 타 산업의 전환성숙에도 공헌할 수 있을 것으로 기대된다. 정책적으로는 정부의 마이데이터 사업 실시에 있어 국가 차원의 데이터 구조, 거래 체계에 대한 논의가 빨리 진행되어야 할 필요성을 제기하였다.

• 예술인문사회 융합 멀티미디어 논문지
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• 제7권11호
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• pp.1-15
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• 2017

수출전략형 할랄식품 개발에 있어서 소비자의 니즈분석과 소비성향 파악은 시장진출의 필수적인 과정이다. 본 연구는 인도네시아 무슬림 소비자의 인삼 및 홍삼제품에 대한 인식과 태도 및 이용실태를 조사하였다. 온라인 시스템을 이용한 웹 기반 설문조사방법으로 인도네시아에 거주하는 성인 남녀 무슬림 소비자 200명을 대상으로 인삼·홍삼제품에 대한 인지도, 섭취경험, 선호 및 비선호요인, 효능인식수준, 구매현황과 구매한 제품에 대한 만족도와 재구매 의사 등을 조사하였다. 연구결과 인도네시아 무슬림 소비자의 인삼·홍삼제품 인지도는 각각 58%, 51%정도로 나타났다. 특히, 남자, 20-30대, 소득이 중·상인 소비자에서 인삼·홍삼제품에 대한 인지도가 상대적으로 높았다. 인도네시아 무슬림 소비자가 인삼·홍삼제품을 섭취하는 이유는 건강증진, 기분전환, 질병예방의 순이었으며, 섭취경험이 있는 소비자는 인삼·홍삼제품의 효능에 대한 인식도가 매우 높았다. 특히, 20-30대는 40-50대 대비 건강증진, 기분전환, 주위권유 등의 이유로 인삼이나 홍삼제품을 섭취하며, 인터넷을 통하여, 면역력 증진, 피로개선, 남자 정력증강에 대한 효능을 알고 있었다. 인도네시아 무슬림 소비자의 인삼이나 홍삼 제품에 대한 만족도는 건강증진, 맛과 향, 포장규격과 디자인 순으로 높았으나 가격, 상품종류의 다양성은 개선할 부분으로 나타났다. 더욱이 지인 추천의향과 지속구입의향은 모두 높은 편으로 나타나 향후 할랄인증 인삼·홍삼제품 소비자의 세분화와 니즈분석을 통한 전략적인 제품개발이 필요하다고 판단된다.

• Strategy21
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• 통권31호
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• pp.57-84
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• 2013

North Korea's continuous threats and provocative behaviors have aggravated tension on the Korean peninsula particularly with the recent nuclear weapons test. South Korea's best way to cope with this situation is to maintain the balance among three policy directions: dialogue, sanctions, and deterrence. Among the three, I argue that deterrence should be prioritized. There are different sources of deterrence such as military power, economic power, and diplomatic clouts. States can build deterrence capability independently. Alternatively, they may do so through relations with other states including alliances, bilateral relations, or multilateral relations in the international community. What South Korea needs most urgently is to maintain deterrence against North Korea's local provocations through the enhancement of independent military capability particularly by addressing the asymmetric vulnerability between militaries of the South and the North. Most of all, the South Korean government should recognize the seriousness of the negative consequences that North Korea's 'Nuclear shadow strategy' would bring about for the inter-Korea relations and security situations in Northeast Asia. Based on this understanding, it should develop an 'assertive deterrence strategy' that emphasizes 'multi-purpose, multi-stage, and tailored deterrence whose main idea lies in punitive retaliation.' This deterrence strategy requires a flexible targeting policy and a variety of retaliatory measures capable of taking out all targets in North Korea. At the same time, the force structures of the army, the air force, and the navy should be improved in a way that maximizes their deterrence capability. For example, the army should work on expanding the guided missile command and the special forces command and reforming the reserve forces. The navy and the air force should increase striking capabilities including air-to-ground, ship-to-ground, and submarine-to-ground strikes to a great extent. The marine corps can enhance its deterrence capability by changing the force structure from the stationary defense-oriented one that would have to suffer some degree of troop attrition at the early stage of hostilities to the one that focuses on 'counteroffensive landing operations.' The government should continue efforts for defense reform in order to obtain these capabilities while building the 'Korean-style triad system' that consists of advanced air, ground, and surface/ subsurface weapon systems. Besides these measures, South Korea should start to acquire a minimum level of nuclear potential within the legal boundary that the international law defines. For this, South Korea should withdraw from the Nuclear Non-proliferation Treaty. Moreover, it should obtain the right to process and enrich uranium through changing the U.S.-South Korea nuclear cooperation treaty. Whether or not we should be armed with nuclear weapons should not be understood in terms of "all or nothing." We should consider an 'in-between' option as the Japanese case proves. With regard to the wartime OPCON transition, we need to re-consider the timing of the transition as an effort to demonstrate the costliness of North Korea's provocative behaviors. If impossible, South Korea should take measures to make the Strategic Alliance 2015 serve as a persisting deterrence system against North Korea. As the last point, all the following governments of South Korea should keep in mind that continuing reconciliatory efforts should always be pursued along with other security policies toward North Korea.

• 산경연구논집
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• 제10권3호
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• pp.59-72
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• 2019

Purpose - Blockchain technology, which has the characteristics of credibility, security, integrity and decentralization, has brought innovation to internet platforms that mediate peer to peer transactions, as well as changes to the contents distribution services. Blockchain-based copyright distribution platforms can solve problems which have been articulated on prior internet social networks: increased market dominance of platform business because of centralization with no reward to creators who upload on platforms, and lack of fairness, such as unfair profit distribution between the copyright holder and businesses. With this background, the current research confirmed the factors that affect the intention of usage and behaviors, targeting potential users of blockchain-based copyright distribution platforms. Research design, data, and methodology - Centered around the UTAUT2 Model, the research model was designed with 'Perceived Security' added as Construct, and 'Age' and 'Knowledge Level' added as moderating variables. For data, 607 responses were collected by an online survey, and 601 responses were included in the final analysis. We analyzed the research model and sample by using SPSS 23.0 and AMOS 23.0 on the collected responses. Results - First, results of research on whether Constructs make positive effects on Intention of use is: social influence, facilitating conditions, habit, and perceived security had positive effects on intention of use, and performance expectancy, effort expectancy, hedonic motivation, and economic value did not. Second, results of the research on whether facilitating condition, habit, and intention of use made an impact on using behaviors, it was shown that only habit and intention of use made positive effects. Third, in two groups divided by age above or under 40, group effort expectancy, intention of use, habit, and intention of use had controlling effects, and facilitating condition, intention of use, perceived security, and intention of use had effects in both groups. Conclusions - The research shows that no matter how great a blockchain-based platform is, if advantages of blockchain are not proved in various industries and utilized in real life like the internet, blockchain-based distribution systems will develop slowly. Rather than a short-term inducement emphasizing technology, there is a need for a strategic approach that can foster the environment.

• 유통과학연구
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• 제14권9호
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• pp.85-94
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• 2016

Purpose - Recently, Mobile technologies and devices including smart phones and tablets have increased the possibility of communicating with other people and sharing personal information without time and space restriction. In order to realize the market potential related to mobile technologies, a large number of internet services have been incorporated into mobile platforms. Especially, The number of MIM(Mobile Instant Messenger) users has been increasing dramatically and services using MIM platform also have diversified. In spite of drastic growth in markets related to MIM, there is little empirical research on MIM and users' behaviors. This study designed to examine the structural relationships among belongingness, loneliness, self-disclosure intention, system quality, and self-disclosure behavior in context of MIM. Research design, data, and methodology - Three hypotheses were about the relationship among belongingness, loneliness and self-disclosure intention. The other two hypotheses were about the moderating effect of system quality in the causal relationship between self-disclosure intention and self-disclosure behavior. The data was analyzed by structural equation modeling. Research data were obtained from 330 undergraduate students who were KakaoTalk users and total 314 valid questionnaires were used in the final analysis. Results - The results from this study are as follow. First, the belongingness and the loneliness had a significant impact on self-disclosure intention in MIM. Second, the self-disclosure intention in MIM also had a positive impact on the self-disclosure behavior. Lastly, there is a moderating effect of the system quality in the relationship between the self-disclosure intention and self-disclosure behavior in MIM. Specifically, the higher system quality level was perceived, the positive effect of the self-disclosure intention in MIM on the self-disclosure behavior was greater. Conclusions - Based on the results from this study, academic and practical implications can be drawn. First, the study extends the scope of research about SNS through focusing on MIM to be classified by closed type SNS and identifies the relationship between emotion, behavioral intention and behaviors in MIM. Second, this study provides strategic guidelines to increase the efficiency for promotion activity. Limitations for the study also should be discussed.

• Journal of Communications and Networks
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• 제17권1호
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• pp.75-83
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• 2015

In mobile ad-hoc networks (MANETs), nodes are mobile in nature. Collaboration between mobile nodes is more significant in MANETs, which have as their greatest challenges vulnerabilities to various security attacks and an inability to operate securely while preserving its resources and performing secure routing among nodes. Therefore, it is essential to develop an effective secure routing protocol to protect the nodes from anonymous behaviors. Currently, game theory is a tool that analyzes, formulates and solves selfishness issues. It is seldom applied to detect malicious behavior in networks. It deals, instead, with the strategic and rational behavior of each node. In our study,we used the dynamic Bayesian signaling game to analyze the strategy profile for regular and malicious nodes. This game also revealed the best actions of individual strategies for each node. Perfect Bayesian equilibrium (PBE) provides a prominent solution for signaling games to solve incomplete information by combining strategies and payoff of players that constitute equilibrium. Using PBE strategies of nodes are private information of regular and malicious nodes. Regular nodes should be cooperative during routing and update their payoff, while malicious nodes take sophisticated risks by evaluating their risk of being identified to decide when to decline. This approach minimizes the utility of malicious nodes and it motivates better cooperation between nodes by using the reputation system. Regular nodes monitor continuously to evaluate their neighbors using belief updating systems of the Bayes rule.

• 정보관리학회지
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• 제28권2호
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• pp.195-208
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• 2011

본 연구는 50대 공직자 500명의 일상에서의 정보탐색행태와 패턴을 탐색하고자 하였다. 구조방정식을 활용한 설문자료분석은 은퇴예정집단으로서 베이비붐세대의 개인정보환경, 개인정보추구태도, 온라인정보태도, 정보추구의 장애, 은퇴기대와 도서관기대라는 6개의 변수간의 상호 연관관계 모형을 보여주고 있다. 그 중 개인정보환경과 정보추구태도는 은퇴기대와 유의미한 관계가 있음을 입증하였다. 이 연구결과는 노령사회를 대비하여 새롭게 부상하게 될 도서관이용자집단에 대한 도서관정책개발의 기초자료로 활용될 수 있을 것이다.

• 대한간호학회지
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• 제48권3호
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• pp.266-278
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• 2018

Purpose: The aim of this study was to develop a substantive theory on self-management conducted by the adolescents with chronic kidney disease from their lived experience. Methods: Data was collected through in-depth interviews from May to December in 2015 with thirteen adolescents with chronic kidney disease. The data collected were analyzed on the basis of Strauss and Corbin's grounded theory. Results: The core of the category found in this study was "overcoming the unstable sense of self- control and integrating disease experience into their life". The causal conditions triggering the central phenomenon were "restriction in daily life" and "manifestation and aggravation of symptom". The central phenomenon in the experience of self-management within the adolescents with chronic kidney disease was "unstable sense of self control". The intervening condition for unstable self control were "micro system support" and "motivational resources". This study found that the adolescents with chronic kidney disease followed a series of strategies when they faced the central phenomenon, including; passive coping, reappraisal of illness, active coping, compliance with treatment, controlling physical activity, and adjusting school life. With these strategic approaches, the adolescents with chronic kidney disease could maintain their active lifestyles and achieve their health behaviors. The process of self-management by these adolescents passed through four phases; limited experience caused by diseases, effort for normalization, reorganizing their daily lives, and integration with daily lives and self-management. Conclusion: This Study explored the process and experience of self-management of adolescents with chronic kidney disease. These findings can be used for basis for developing substantive theory and nursing intervention strategy for adolescents with chronic kidney diseases.