• Journal of Navigation and Port Research
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• v.36 no.5
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• pp.419-427
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• 2012

The paper evaluated the effects of port hinterlands and suggested the policies to improve them in Korea. The results of evaluation indicated that it is difficult for the effects to be evaluated so good. It seems that a lot of efforts should be made to make port hinterlands carry out their own functions well, in that, in particular, they have had so bad effects in carrying out such functions as production, international trade, and city. Policy actions were suggested including reduction of rent, strengthening international logistics networks, and governmental funding etc.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.24 no.4
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• pp.399-404
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• 2011

Overload vehicles have demoralizing influence upon the social overhead capital, economics of nation, traffic flow and road safe as various components. Accordingly, this study established a ubiquitous sensor network system to develop an intelligent regulation system to monitor overloaded vehicles in motion. and Unlike WIM, after detecting the axle of driving vehicles by measuring deformation of roads, this system calculates the weights of vehicles by using signals from the strain sensors installed under the road and an analysis method. Also the study conducted an simulation test for vehicle load analysis using genetic algorithm. and tested wireless sensor for USN system.

• Convergence Security Journal
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• v.7 no.4
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• pp.9-10
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• 2007

Recently, as infra structure on network is being extended, its reliability and availability have an important effect upon the productivity of the entire organization, the subject of economy. If an temporary trouble on network(hardware, protocol) which serve as pipeline of information tendency is occurred, the organization is suffered serious damage. thus, more effective counterplan is required to safely manage network. TTS(Trouble Ticket System) is needed to clear away every obstacle. eventually, TTS can minimize the loss of time and money. In this paper, it will make use of the development of TTS suitting with domestic situation.

• Communications of the Korean Institute of Information Scientists and Engineers
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• v.16 no.5
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• pp.19-25
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• 1998

본 고에서는 전자상거래에서의 지불 방법과 전자상거래에서 사용되는 거래정보의 보안기법에 대해 살펴보았다. 전자지불의 유형으로는 전자 대금 이체, 디지털 캐시 및 이의 현실적인 형태인 E-cash등이 있다. 이러한 거래 방법과 더불어 전자상거래 시스템의 보안은 비즈니스 측면에서 매우 중요하다. 이를 보장하기 위해 non-SET 기반으로 대칭적 암호화 기법, 비대칭적 암호화 기법 및 SET을 이용한 암호화 거래 방법을 살펴보았다. 전자상거래 시스템의 구성요소는 구매자, 판매자 및 중개인으로 이루어진다[8]. 전자상거래의 보안에 관한 요소는 다른 학문적인 요소와는 달리 그 실용적인 성격과 파급효과로 인하여 세계 각국의 정부 기관이나 연구소에서 주도권 쟁탈을 위한 노력을 기울이고 있다. 이러한 전자상거래의 요소는 전자상거래의 기술을 연구하고 제시하는 쪽 보다는 현실적인 필요성에 의해 금융기관이나 판매자들에 의해 주도적으로 개발되는 경우가 많다. 컴퓨터와 네트워크의 급속한 발전 속도와 영역의 확장은 앞으로의 전자상거래가 국가나 사회에 어떤 영향을 미칠지를 예측하기 어렵게 한다. 다시 말하면 앞으로 전자상거래가 사회, 경제적 또는 외교적으로 미칠 영향은 매우 크리라 예상된다. 이러한 전자상거래 분야에서 주도권을 유지하기 위해서는 이와 관련된 정부부처, 연구소, 각급 기관 및 업체들이 서로 협력하고 조율하여 국제적인 표준과 보조를 맞추고, 국내 기술과의 접목을 가능하도록 협조와 자원이 필요하다. 전자상거래 관련 보안 및 지불 기술의 확보는 국가 경쟁력 확보 및 차세대 거래 수단으로서의 전자상거래 시장에서 기회를 확보할 수 있는 초석이 될 것이다.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.05a
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• pp.174-177
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• 2019

최근 ICT(Information Communications Technologies)의 발전과 센서 제조 공정의 발전을 통해 저용량, 경량 디바이스를 이용한 스마트 홈 시장이 성장하고 있다. 특히 스마트 홈 IoT의 환경은 모든 사물을 인터넷으로 연결하고 상호 통신을 통해 다양하고 많은 양의 정보를 수집하여 일상생활을 편리하게 해주는 IoT(Internet of Things)가 계속 증가하고 있다. 하지만, 이러한 증가량과 함께, 스마트 홈 환경에서 대한 기술표준화가 이루어지지 않았으며 원활한 서비스 제공 뿐만 아니라 보안 문제가 발생하고 있다. 특히, 이기종 네트워크, 디바이스를 사용하는 스마트 홈 IoT의 경우 다양한 인증 방법이 존재하며, 이에 따른 취약점이 발생하게 된다. 보안 취약점을 이용한 공격으로 개인정보 유출이나 경제적 손실 등 피해를 발생시키고 있으며, 추후 인명피해까지 발생할 수 있다. 따라서, 본 논문에서는 스마트홈 환경의 IoT 보안 방안에 대해 알아보고, 관련 보안사고의 사례 및 인증 기술을 살펴봄으로써 미래 스마트 홈 IoT 보안 기술의 발전과 적합한 보안 대책과 보안 취약점에 대한 보안 체계를 마련하는 것에 도움이 될 것이다.

• Journal of Digital Convergence
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• v.19 no.2
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• pp.133-141
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• 2021

Recently, the number of seniors who engage in social and economic activities through digital platforms is increasing. Through this, they are building new social networks or creating profits. Therefore, this study aimed to conduct an in-depth interview with 17 seniors who are engaged in social and economic activities on a digital platform. This study examined their motivation and experience in detail through in-depth interviews. As a result of the study, three subjects (motivation for participation, evaluation and performance of activities, and requirements for stable activities) were derived. The results of this study are predicted to contribute to preventing social isolation of seniors by mediating digital platforms in the future and inducing them to become subjects of the digital economy.

• Asia Marketing Journal
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• v.3 no.2
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• pp.41-68
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• 2001

최근 20년간 마케팅을 비롯하여 사회과학 전반에 걸쳐 기업이론에 관하여 새로운 패러다임으로 각광을 받아온 신제도학파 접근방법은 이익극대화를 기업의 중심적 행동으로 가정하고 있는 신고전학파의 맹점을 극복하여 조직문제를 포괄적으로 다룰 수 있음을 보여주고 있다. 이 이론은 한정된 합리성, 기회주의, 자산 특수성, 지배구조, 신뢰 및 협동 등의 핵심적 개념들이 동태적 환경 하에서 활동하고 있는 기업의 경제적 행동을 분석하고 이해하는데 크게 기여하였음이 입증되고 있다. 이것은 다수의 실증적 문헌들에서 엿볼 수 있다. 그러나 신제도학파의 이론적 틀은 두 가지 면에서 주요 결점을 안고 있다. 그 하나는 이론의 정당성을 입증하기 위한 실증적 연구결과물을 무수하게 찾아볼 수 있으나, 대부분이 연구의 타당성이 결여되어 있다는 점이고, 또 하나의 결정적 결함은 신고전학파와 마찬가지로 비교정태적 접근방법을 택함으로써 역사적 관점이 도외시되고 기업의 전략개발과 구조적 변동을 이해하는데 필수적인 조직과 기술간의 동태적 상호작용의 중요성을 간과하고 있다는 점이다. 이에 따라 본고에서는 국제교역 이론가들이 제시한 기업 특유의 경쟁우위에 관한 착상과 그러한 우위가 기업 내외의 네트워크 형성을 포함하여 결집된 조직역량에서 도출된다는 견해를 거래비용이론에 접목시킴으로써 기업의 성격과 그 성장방식을 보다 설득력있게 이해할 수 있으리라는 관점을 제시하려 하였다. 이와 같이 거래비용이론과 진화론을 결합하면 신제도학파 기업이론의 결점이 보완되고 이론의 발전이 한 단계 진일보할 것으로 기대된다. 특히 마케팅 연구자들이 거래비용이론의 경우와 마찬가지로 본고에서 제시한 통합이론에 대해서도 실증적 연구를 행하면 이론개발에 크게 기여할 것으로 생각된다.

• Korean Chemical Engineering Research
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• v.61 no.3
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• pp.378-387
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• 2023

Petrochemical is an energy consuming industry that consumes about 30% of total industrial energy consumption and is a representative carbon dioxide (CO₂) emission source. Among them, the Naphtha Cracking Center (NCC), which produces ethylene, propylene, propane and mixed C4, consumes large amounts of energy and emits significant amounts of CO₂. For this reason, an integrated techno economic- environmental impact assessment aimed at reducing energy consumption and environmental impact factors is necessary to ensure efficiency in terms of economics and environment. This study aims to analyze the efficiency of the heat exchanger network used in the existing NCC base on the pinch analysis and select an improvement plan that can reduced energy consumption. In order to reduces the utility consumption in the process, an optimal heat exchanger network considering the high-temperature and low-temperature stream was derived, and the economic evaluation was conducted by considering the trade-off between the reduction in utility consumption and the increase in heat exchanger installation cost. In addition, an environmental impact assessment was conducted on the reduced CO₂ emission in consideration of the environmental aspect, and the economic environmental impact assessment used the payback period to recover the invested funds to come up with an energy saving plan that can be applied based on the actual process. As a result of considering the economic-environmental impact assessment, when the environmental impact assessment was not considered, it was 4.29 months, 3.21 months, and 3.39 months for each case, and when considering the environmental impact assessment, it was 4.24 months, 3.17 months, and 3.35 months for each case. These results appeared equally both when the environmental impact assessment was not include and when it was include. In addition, a sensitivity analysis was conducted for each case to determine how important factors affect the payback period. As a result of the sensitivity analysis, the cost of the heat exchanger was identified as a major factor influencing the overall cost.

• Journal of the Korean association of regional geographers
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• v.21 no.3
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• pp.427-449
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• 2015

Network governance can be defined as collaborative process to develop a new socio-political order through civil society centered networking with government and market, and the term 'collaborative governance' can be used in a sense that the basis of governance is collaborative process. In particular, it can be stressed that collaborative governance between regions need double collaborative processes, that is, collaboration between local governments and collaboration between local government and local civil society within a region. Yet, the collaboration as a core element of collaborative governance should not be seen as a pure normativity presupposing confidence and reciprocity, but as a strategy based on competition and antagonism. The normativity implied in the concept of collaborative governance may not realized in actual process, and tends to be mobilized as a rationale for justifying neoliberal strategies. In order to overcome such limits of collaborative governance, the concept of collaborative governance should be reconstructed. This paper suggests that collaborative governance can be seen as hegemonic governing process in a Gramcian sense operating in the government plus civil society, and that, radicalizing Ostrom's concept, it also can be seen as a governing process producing polycentricity by self-regulating subjects. Finally, collaborative governance between regions needs expansion of material basis for economic complementarity and construction of infrastructure as well as a discursive process in order to enhance connectivity between them.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.11 no.2
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• pp.49-62
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• 2016

Technology-based start-ups have great economic ripple effect such as economic growth and job creation. Therefore, a strategic approach is required in order for such start-ups to continuously grow. However, many technology-based start-ups do not survive the Death-Valley and are being eliminated from the market. This is an empirical study on influencing variables that have impact on their performance. This study presents growth intention and influencing variables that have impact on performance (financial performance, technological performance) based on previous research on technology-based start-up. Also, this study examines the relationship between entrepreneurial competence, team commitment and growth intention, and finds the effect of controlling business-network. Structural equation modeling was performed in order to test the research hypothesis. Survey was conducted on the firms that have been certified by Youth Startup Academy of Small and Medium Business Corporation. A total of 306 samples were collected from the survey. An empirical test was conducted on the research hypothesis using SPSS 21.0 and Amos 22.0. The result of hypothesis test shows that growth intention has positive influence on both financial and technological performance, and entrepreneurial competence (technological competence, strategic management competence, creative competence and team commitment) has positive influence on growth intention. Also, the research proved that business-network has regulation effect between human resource trait and growth intention. The result of our study will provide practical insight to future start-ups for continuous growth and successful running of their firm.