• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.4
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• pp.819-824
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• 2015

SDN (Software Defined Network) technology, hardware and network control functions should be separated independently of existing switches or routers and data transfer functions and are also refers to a separate network architecture that can develop and run. When planning a network and designed to reflect the network control function by applying the SDN may reflect the resources efficiently. In this study, one people suggest Applications SDN, which offer an absolutely necessary part of a coded program that combines the benefits of the existing IOS (Combined Benefits) applying the model to complete the Controller part through the MPLS IOS. The OpenFlow Controller is a command to the router LER(Label Edge Router), and transmits the packet in accordance with the command to the destination according to the EXP bit. To configure TCP / IP to the IOS through the optimized coding. Using the OpenFlow protocol controller transmits an encapsulation header as defined in the MPLS packet.

• The Journal of the Korea Contents Association
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• v.15 no.1
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• pp.95-104
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• 2015

Due to its intrinsic characteristic, exterior bus advertising is exposed to an unspecified number of the general public. Thus it influences on the urban publicness of the city, simply beyond leaving it as a personal marketing activity toward the industry's profit. Seoul city's campaign to improve exterior bus advertising has been to effective in removing advertisements of alcohols, tobaccos, and lascivious contents, however, there still are several advertisements that should be examined from the view point of publicness. For the case of UK, where exterior bus advertising is also actively utilizing owing to its high exposure and effectiveness, they are administrating it by setting up guidelines and regarding the importance of publicness. I also identified the meaning of publicness of exterior bus advertising from the aspects of 'publicness of territories', 'publicness of subjects', 'publicness of reasoning', and 'publicness of procedures'. Through this, I suggested that both commercial right of exterior bus advertising in the private sector and citizen's right of publicness can be harmoniously developed by properly controlling and administrating the exterior bus advertising. Furthermore, artistic approach to the exterior bus advertising from the viewpoint of city environment is expected to elevate the aesthetic possession and the level of design sense of citizens.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.17 no.12 s.115
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• pp.1224-1230
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• 2006

In this paper, for spatial multiplexing with limited feedback, a precoding scheme is proposed based on the joint use of minimal instantaneous feedback and long-term feedback of a small number of bits, wherein the long-term feedback is used to convey a selected preceding matrix within a precodercodebook consisting of a number of unitary matrices, and the active column vectors of the selected unitary matrix are conveyed to the transmitter using instantaneous feedback. Focusing on the case of dual multi-input multi-output(MIMO) systems, precoder codebook design for maximizing the average throughput of a spatial multiplexing system with a zero-forcing(ZF) receiver is proposed. It is shown that the proposed scheme provides a considerable throughput enhancement over multi-mode antenna selection and multi-mode basis selection only with the additional long-yterm feedback of a small number of bits. For example, the throughput increases by 11.5 % than antenna selection and 5.1% than basis selection, respectively, when SNR=20 dB.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.23 no.10
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• pp.1180-1187
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• 2012

In this paper, joint transmission space division multiple access(JT-SDMA) scheme is proposed to mitigate inter-cell interference(ICI) in cooperative wireless communications system with limited feedback. We propose a systematic design method for a codebook consisting of a finite number of unitary matrices suitable for network multiple-input multiple-output( MIMO) channel characteristics. A centralized cluster scheduling scheme is proposed to both mitigate ICI and maximizes multiuser diversity gain with limited feedback. It is shown that the proposed JT-SDMA scheme outperforms a existing coordinated SDMA scheme even in wireless network environments where sufficient multiuser diversity order can not be provided through efficient ICI mitigation.

• 한국HCI학회:학술대회논문집
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• 2006.02b
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• pp.795-802
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• 2006

현대의 소비자는 더 이상 단순히 감성적 소구에 의해서나 기술적 기능을 제공하는 것으로 제품을 구매하지 않는다. 제품의 결정은 사용자와 제품 간의 상호작용에 따른 정서, 인지, 행위 등에 의한 총체적인 경험에 의한 것이며, 그러한 소비자들의 경험은 지리적, 역사적 전통으로 고착된 문화적 특성이 제품을 통한 사용자 경험의 기저에서 작용함으로써 문화권 별, 국가 별로 각기 다르게 구성된다. 특별히 음식 문화는 어느 나라이든 자연 조건의 영향과 함께 오랜 역사 속에서 형성되었기 때문에 독특하고 다양한 문화적 차이를 지니고 있으며 이러한 문화적 차이는 냉장고 사용에 있어서 다양한 사용행태를 구분 짓는다. 따라서 본 연구를 통해 식품 종류에 의한 영향뿐 아니라 내부 공간 활용의 패턴, 냉장고 환경 설정에 대한 능동적인 태도, 냉장고에서 제공하는 파티션이나 옵션에 대한 수용 정도, 식품의 정리 원칙에 대한 준수 정도 등에 따른 사용행태 간의 차이점을 발견하고, 차별적 사용행태의 기저에 존재하는 문화적 요인을 분석하여 문화적 차이가 사용자의 경험에 영향을 끼치게 됨으로 인하여 냉장고 디자인에 어떠한 변화를 초래하는지 그 연관성을 밝혀내고자 한다. 보다 실제적인 용도로 활용 가능하도록 냉장고 제작의 상업적인 측면을 고려하여 냉장고 내상의 레이아웃에 중점을 두어 본 연구를 진행하였다. 본 연구는 설문과 현장 관찰을 통해 정량적 관찰을 중심으로 분석하였다. 두 국가의 문화 비교를 위한 설문은 이미 여러 연구자료에 의해 검증된 Trompenaars의 문화 변수를 바탕으로 제작 하였다. 또한 정량적 연구에서 발견될 수 없는 문화권 별 여러 특징들에 대한 데이터를 구체적으로 수집하기 위하여 정성적인 연구 방식의 일환으로 실제 관찰 및 사용자 인터뷰를 실시하였으며, 이를 통하여 현상의 원인 및 사용자의 의도를 파악하도록 연구를 진행하였다.

• Journal of the Korean association of regional geographers
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• v.13 no.3
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• pp.355-375
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• 2007

This study explores the geographic characteristics of ecotour resources in Oceania based on the concept of ecotourism along with global education and investigates the global educational applications of eco-resources through a field survey of the Australian Cairns region. The field survey areas are the Green Island within the Great Barrier Reef, Barron Gorge National Park, the Australian Butterfly Sanctuary in Cairns, and the Tjabukai Aboriginal Cultural Park. This case study of the Cairns region is applicable to global education in these aspects: The underwater Observatory and Glass bottom boat in Green Island is used in efficient exploration of ocean ecology; Barron Gorge National Park provides an excellent forest tour with a well-made track, detailed directory, and trained park rangers; the old industrial trains are being recycled for tourism uses; the Australian Butterfly Sanctuary provides various language interpretations and experts to help further visitor's understanding of the surrounding eco-resources; The Aboriginal Cultural Park also utilizes a special program that helps people understand their culture.

• Journal of the Korea Furniture Society
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• v.27 no.2
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• pp.111-121
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• 2016

In the structure of modern houses, a living room is the space most frequently used by family members. In a living room, they rest, talk together, watch TV, study, read books and enjoy hobbies. A living room is furnished with a TV cabinet, a storage closet, a sofa, a bookshelf, a desk and etc. depending on the purposes of activities in it, which can be different in each house. Furniture is the required tool for indoor architectural space and humans to lead a life. In most families, a man and a woman marry each other and become man and wife, go through the honeymoon phase, give birth to one or two children and become a family with three or four members. According to the children's growth cycle from birth to infancy, early childhood, childhood, adolescence, youth and adulthood, furniture layout and kinds of furniture in a living room change. Depending on the family life cycle, most parents of young children try to help their children to form good habits of reading books and studying for their future. As for the environmental elements interrupting reading and studying, watching TV and using smart phones excessively are being regarded as problems. As the number of two-income families is increasing in this era when many women are participating in the social activities with the government's encouragement, children are having more time.

• The Journal of the Korea Contents Association
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• v.18 no.6
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• pp.364-373
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• 2018

This study aims to investigate the linguistic features of English signboards (ES) and socio-cultural aspects in Korea through university students' perspectives on the ES. The data comprised pictures and questionnaire on the ES from the students. The findings showed that ES reached to 55.4% for mainly the business of drink beverage and clothes. The text written by 'only English' included 2-3 words (43%), and that of 'combination of English and Korean' had 4-5 words (25%), which reached to 68% of the all. The 70% of ES were used for the business of drink beverage, food, and clothes, but these were not in harmony with the neighborhood, showing 42% of agreement. Good ES required 'visual factors (27%)', 'expression of business (23%)', 'elegant and luxurious style (19%)', and 'design and creativity (15%)', and these ES were the most in Shinchon areas. Overall, the present ES culture was insufficient to make harmonious atmosphere in Korea, which requires the support of policies and systems.

• Journal of Navigation and Port Research
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• v.27 no.1
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• pp.31-40
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• 2003

Because yard monitoring system is a part of real-time operation system and yard planning system, most planers, in container terminal, Busan Port, can not consider real-time and exact yard situation and container information such as position of equipments or movement of container with current planning system when export yard planning os established. Therefore, many planers recognize the limit of current planning system and try to find the solution to get over it. The reason of this, heuristic algorithms for the export yard the limit of current planning ,operating on monitoring system, are suggested and integrated export yard planning system is designed and developed in this paper.

• FLOWER RESEARCH JOURNAL
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• v.17 no.1
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• pp.67-73
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• 2009

This study was conducted to establish a strategy to improve the grafted cacti export which has been stagnated in these year. To promote its exporting, first of all, Korean cactus producer needs to save the cost of labor by using bottom nutriculture system for the greater national competitiveness. Second, it is desired to diversify the export cactus items such as a new variety of Epiphyllum truncatum, big size of perfect brand, a finished package production to satisfy foreigner's demand coping with international market change of grafted cacti. On the other hand, Korean cultivar protection and national negotiation for a reducing tariff rate or an efficient plant inspection system are also needed.