• The Journal of Korean Institute of Communications and Information Sciences
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• v.36 no.4A
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• pp.345-355
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• 2011

This paper introduces the coded cooperation protocol in wireless relay network. We propose a two relay based coded cooperation protocol with RCPC codes for wireless networks. The proposed two-relay based system can achieve a diversity of order 4 under slow fading environment. Under fast fading, the diversity order is 2 times of the free distance of the convolutional code. We develop upper bounds on BER and FER for the system under both slow and fast fading with Rayleigh distribution. The effect of various channel conditions on the cooperation is also examined in this work.

• International Journal of Contents
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• v.5 no.3
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• pp.79-85
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• 2009

Emergent requests or urgent information among enterprises require their intimate collaboration in B2B EC (electronic commerce). This paper analyzes the needs of intimate cooperation of distributed EC systems in terms of business contracts and presents an active rule-based methodology of close cooperation among EC systems and an active rule component to support it. Since the rule component provides high level rule patterns and event-based immediate processing, system administrators and programmers can easily program and maintain intimate cooperation of distributed EC systems independently to the application logic. The proposed active rule component facilitates HTTP protocol. Its prototype is implemented in B2B EC environment and evaluated using basic trigger facility of a commercial DBMS.

• International Commerce and Information Review
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• v.9 no.3
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• pp.343-362
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• 2007

Inter-Korean Economic Cooperation needs to a different strategy for developing synergy effects, suggesting they should be selected for role to the unification Korea. In the this paper, Three policy-strategies is suggested as follows. Firstly, Economic Cooperation Driving Committee of Inter-Korean Digital Cultural Content is necessary the recovering of cultual consubstantiality and the operating of business partnership in the divided peninsular. Secondly, To cultural contents cooperation between South-North Korea. the exchange of learning and information must be activated constantly. as the cultural contents is creative industrial, it needs for imagination and creative of human and understanding of a fine arts, a traditional arts. Thirdly, A policy and system is inevitable to construction of Inter Korean Cooperation Digital Contents. South-North Korea, including a North Korea having a excellent cultural heritage, must jointly recovery for cultural contents. Under social-economic system, a consumers of digital contents pay to the format creator many royalty. Therefore, We must prepare to roll out a series of new creative contents, and have competitive advantages in the global market.

• International Journal of Advanced Culture Technology
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• v.12 no.2
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• pp.144-150
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• 2024

There is no prior research on organizational commitment and supervision for social welfare public officials in charge of public-private cooperation in public welfare fields. Therefore we are designed to determine the impact of social welfare public officials' public-private cooperation awareness on organizational commitment to verify the moderating effect of supervision on the effect between public-private cooperation awareness and organizational commitment. The analysis data is 242 questionnaires collected from Incheon public health and welfare officials visiting towns, villages, and villages in 10 counties. Using the SPSS 22.0 program, descriptive statistics and relationships between variables were analyzed, regression analysis was performed to analyze the influence between variables, and hierarchical regression analysis was performed to verify supervision control. As a result of the study, it was confirmed that the perception of public-private cooperation affects organizational commitment, interacts with supervision satisfaction, and has a moderating effect. Based on this, in order to improve the organizational commitment of social welfare public officials during public-private cooperation work, specific measures were proposed for sharing awareness and understanding between the public and private sectors, establishing an official system, and establishing a supervision system.

• Culinary science and hospitality research
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• v.7 no.1
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• pp.147-180
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• 2001

Competition of today's markets get to compete the relationship of one system and another system. Competition in relationship of system emphasis molding of cooperate relationship-strycture between enetrprices and It appears competitiveness enriched effects of enterprices in systems. In the rapidly changing economy and marketing situation, Travel agency got worse management situation of themselves more excessive competitiveness then competitiveness efforts between Tourism Relationship Enterprices. So, Relationship marketing will lays a foundation of new travel agency's environment through competitive of relation to travel agency and travel agency, travel agency and hotel or travel agency and airplane. This study's object are present relationships between travel agency and travel relation enterprise of cooperation, complication and competitiveness to relation form. And this study are presents suggestion to generate of hereafter travel relation enterprise through study on relationship with hotel and airplane. A final object of this study are presents a model applys relation method of travel agency and travel agency, hotel and airplane through inspect to specialist analysis. In the result of study, Travel agency are low position and difficult with hotel and airplane at the cooperation but acually It's difficult with travel relation enterprise. So, Travel agency will be operates characteritic system and regulations for win with travel relation enterprise for efficiency of working more than hotel and airplane. Airplane is the best big travel relation enterprise. So, The most airplane has to high cooperate with travel agency. That's why airplane keep going close cooperation with travel agency. Travel agency has to close cooperate with hotels secondly through marketing, exchanging information and union advertisement etc. Hotels are low in complications than travel agency but high in complications than airplane. Although travel relation enterprise are different system individually, because of all of us working with union object, Travel agency and travel compliment-cooperation relationship.relation enterprise has to autonomy behavior with close cooperation through.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.9 no.2
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• pp.187-200
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• 2014

Industry Cooperation is not the choice of national development but the inevitable component in the world. Industry cooperation results of the reconstruction of the country is an important place as an essential element of the economic development of the national policy in the major economies. Despite several changes in the international economic environment, United States, Canada, Finland, Sweden, Israel settled and maintaining the sustainable development of the countries which successfully established Industry-University Cooperation or Industry-Acaemy Cooperation system in history. In this study, delivered to the realistic ways of Industry cooperation through comparison study on domestic and international cooperation programs. The new activation programs of industry academic cooperation are delivered, that is, The bonus payments system of technology development patent and free technology transfer for joint development, bonus points system and evaluation indicators for joint capacity building program which participate student, industry and academic sector, step-by-step training. system for total employment and entrepreneurship at the same time strengthening management training programs and education opportunity gives to the benefits for the community members. Finally, Intellectual property expert matching program which develops basis of technology trader and expert maps in the smallest unit by administrative area. practice the internet information search services in national wide network for this matching program and government office dedicated to staffing for technology transfer.

• Proceedings of the KIEE Conference
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• 1996.07a
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• pp.342-344
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• 1996

This paper describes the usefulness of new control method in HVDC link system which suffers from severe condition of weak ac system. The proposed control scheme is used for the positive feedback control which directly controlls dc current at dc link system. The object of this paper is to improve the transient response of HVDC link system in disturbances such as faults. To achieve this objective, digital time-domain simulations are employed by the Electro Magnetic Transient Program for DC system(EMTDC).

• The Journal of Economics, Marketing and Management
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• v.6 no.1
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• pp.25-30
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• 2018

Purpose - This paper mainly studied the role of the logistics legal system in promoting international transport logistics, building marine economy international cooperation demonstration zone and deepening the economic and financial cooperation etc between China and Korea. Research design, data, and methodology - The study conducted a survey on China and Korea's 2012-2017 years data. After empirically analyzing the data, we believe that cultural industry in Korea and China will maintain its growth momentum. Results - This study explored the way to establish an integrated logistics system between China and Korea to match the e-commerce certification system, online payment system and logistic distribution, thereby gradually promoting economic development and logistics integration in Asia. Conclusions- China-Korea FTA can encourage private flow to take on enterprises. In terms of improving logistics efficiency, reducing logistics costs and establishing a unified logistics industry standardization system. This will accelerate logistics industry integration in Northeast Asia, build a unified logistics management center in Northeast Asia, and promote a new model of integrated logistics cooperation in Northeast Asia. Therefore, it has a practical and reference significance.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.3A
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• pp.245-253
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• 2010

In this paper, we derive the performance analysis of the coded cooperation over a Rician fading channel. A new scheme called coded cooperation was suggested by using user cooperation and channel codes simultaneously. In previous works, it was verified that the coded cooperation schemes have better performance than other relay schemes in a Rayleigh fading channel. However, the high speed short range indoor wireless communication system has recently attracted research attention and its channel with very high carrier frequency(60GHz) can be typically modeled as a Rician fading channel. We derive analytical outage probabilities and bit error probabilities of the coded cooperation over the Rician fading channel and prove it to have full diversity order.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2003.09a
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• pp.114-117
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• 2003

Recently, the aging society is a serious problem; we paid attention to the welfare and a disaster prevention cyber city. In this research, we propose the validity of Safe Human Cooperation Mobility System in Collaboration with Cyber City, and show Vehicle Warehousing Support System as an example.