• Korean Journal of Cognitive Science
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• v.24 no.1
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• pp.71-93
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• 2013

Multitasking has become part of our life. Self-interruption and switching to another task become easier and more frequent. According to previous studies, however, most of the task-switching incurs a cognitive cost. This study investigated the benefit from task switching. In Study 1, participants performed two tasks were similar, and negative correlation between the number of task switching and performance were confirmed, this result is similar to previous studies. Study 2 has shown that, made a comparison of two conditions, between possible and impossible conditions in terms of task switching. Depending on switching preference, the result of task performance has differentiated and the emotion that participants had before the task has changed. Depending on participants' switching preference, there were different amount of switching cost. Moreover, for participants who preferred task switching highly than others, task switching occurred more benefit than cost.

• Science of Emotion and Sensibility
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• v.21 no.2
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• pp.73-88
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• 2018

The present study examined how processing features of visual information near the hand would affect task switching. Recent studies reported enhanced cognitive control of visual information presented the near hands. To investigate the enhancement of cognitive control based on the relationship between hand proximity and attention, we implemented 2 experiments. In the task switching performance experiment, the hand proximity effect depended on modality of cue and target. The first experiment showed that stimuli near the hand received greater cognitive control than stimuli far from the hand, resulting in smaller switch cost. The result could rule out the feature-binding problem, which identifies reduced switch cost as the cause instead of hand proximity. Our results show that hand proximity actually reduced switch cost. In the second experiment, we examined the effects of hand nearness, modality, and their interaction on switch cost. In task switching, the target was always visual, and the cue was presented either visually or auditorily. In addition, we manipulated the cue-target interval to observe the preparation effect of cue. The results showed that a visual cue near the hand reduced switch cost by shortening task preparation time. Also, modality switching between an auditory cue and visual target was remarkable in a hand-near condition. The results for the visual cue could be interpreted as a benefit of rapid visual attention orienting. On the other hand, the results for the auditory cue could be interpreted as the cost of interference of modality switching by slower attentional disengagement of stimuli near the hands. Finally, modulation of switch cost by attention induced by hand nearness was discussed.

• Journal of Cadastre & Land InformatiX
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• v.45 no.1
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• pp.59-74
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• 2015

This study proposes a land action plan for stabilization of the North Korea in fundamental guarantees of life, social security and social system in order to minimize the social disruption and economic losses by identifying the administrative and operational status of the land in North Korea. Land action plan for North Korea is that the state holds the whole land ownership for a certain period through re-nationalization of the land by not admitting the former owner's ownership and distributes the land to the currently occupying personal and set the land use permission and later land ownership will be introduced and land use permit will be gradually privatized.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.2
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• pp.251-257
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• 2015

Rationality only based on human experience and visuals takes huge toll on nation at the time of disasters. Accordingly, it is required to convert its system into national disaster-managing system based on governmental departments effective cooperation against catastrophic emergencies. Thus, this manuscript rejects empirical model of calamity measures and provides substituting prototype based on u-Gov which utilizes UT service from the developed countries' cases. Moreover, in order to provide nation's administrative services, the paper suggests alternative for politic issues which realizes a new incorporated control towel reflecting policies.

• Journal of the Korea Convergence Society
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• v.4 no.1
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• pp.1-7
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• 2013

This paper is the product development of environment and safety. In growing society, the bicycle is need to have a common goals for consumers convenience and theft prevention. The bicycle is movable means. But as times passed, that bicycle is strongly recommended to replace other vehicles because that is not produced to air pollution and energy(gas, diesel etc) insufficiency. As workers using a bicycle are increased, road for only bicycle is made by additionary. The bicycles happens to several moving accidents such as car accidents because of signal mismatch between bicycle users. However, using the development products of this paper, many accident problems for bicycle can be solved. As increasing of bicycles numbers, the high cost bicycles are too increased. So, the more theft of bicycle is also happened. The developed products(turn signal system and theft prevention system) through this study kept your bicycles from more convenience and more safe.

• Journal of the Korean Geographical Society
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• v.39
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• pp.93-114
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• 1989

거의 해마다 내습하는 태풍위험을 제주지역 농부들이 어떻게 인식하고 그에 적응하고 있는지 아울러 이와같이 연례행사처럼 발생하는 태풍재해 문제 해결에 있어 정부관계기관의 역할에 대한 그들의 인식은 어떠한가를 살펴보는 것이 본 연구의 목적이다. 우선 위 연구과제를 살피기 위하여 다음과 같은 세 가지 가설이 전제되었다. 첫째, 태풍과 같은 자연발생적 위협과 빈번한 접촉내지 오랜 경험은 인간에게 위험과 손실을 준다는 자각으로 이끌며 또한 장차 발생의 정확한 예측에 비교적 밀접한 관계를 갖는다. 그리고 이러한 경험들은 그와같은 자연발생적 위협으로부터 일시 피하거나 위협지역으로부터 아주 떠나 버린다기 보다 오히려 적응이라는 선택을 취한다. 둘째, 인간이 이와같은 위협지역 제주도와 같이 사회문화적인 특성이 뚜렷한 지역에 삶의 터전을 가지고 있는 것은 경제적 요인에서라기보다도 사회문화적 바탕에서 그 원인을 찾을 수 있다. 셋째로, 정부의 이와같은 자연발생적 재해문제 해결은 해당 지역 거주주민들과 보다 긴밀한 컴뮤니케이션과 함께 정부나 컴뮤니티를 통한 자연재해에 관한 계몽교육을 강화함으로서 그 역할이 효과적으로 수행될 수 있다. 총 113명의 농업을 주업으로 하는 가구주들을 제주도의 상습태풍재해지구에서 무작위 단게별군집(Random-cluster Stratified Sampling)방법에 의하여 선별하고 태풍위협에 대한 개인별 재해인식과 인간 적응을 알아보기 위하여 작성된 설문서를 통하여 각기 면담, 연구분석자료가 수집되었다. 제주농부들의 태풍에 대한 자각과 적응은 제주도 나름의 풍토에서 오랜 삶의 경험을 토대로 얻어진 결과라는 것이 입증되었다. 한편, 장차 태풍 내습에 대한 그들의 예측은 상당히 정확하였으며, 태풍재해에 대한 적응은 동기적이고 예방적 즉, 농부들은 재해의 근원적 소멸을 위해 재해지역을 떠난다기보다 오히려 피해를 감수하고 있었으며 또한 그들의 기본 영농방법이나 작물의 대체를 급격히 전환한다기 보다 부분적으로 수정, 변경시켜 나가고 있는 것으로 나타났다. 한편, 그들의 적응과정은 현대적 영농기술과 그들 특유의 전통적 방법을 혼합 병행하고 있었으며 가족이나 친척 이웃과의 유대관계가 재해지역에 거주하는 지배적 이유로 나타났다. 또 한편, 해당연구지역 농부들은 태풍피해에 대한 정부의 보조를 알고는 있으나 그것이 재해문제를 해결하는데 있어서 효율적이라고 생각치 않고 있다. 그들은 더욱 많은 재정적 보조를 희망하는 것만큼 연례저긍로 내습, 피해를 주고 있는 태풍재해 문제에 대한 정부의 적극적이고 좀더 효과적 예방 대책을 요구하고 있다.

• Archives of design research
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• v.12 no.2
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• pp.97-106
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• 1999

The whole crisis of human being derived from environmental pollution has changed the human -centered paradigm into the ecological paradigm based on the harmony of human and nature, which have made it inevitable for designers to participate in the environmental problem-solving. In the line of this sense, it is necessary for designers to recognize the social and ethical responsibility for environmental pollution and to change into the designing for environment, not for sale itself. In accord with the context above, the purpose of this study is to suggest some clues for resolving environmental problems with the analysis of design for long-selling product, as we call, product durability analysis. That is, this study is under some assumptions that designing durable product and durable product itself are able to extend a product life cycle, delay a product disusing, reduce a rash development competition for new product among companies, mitigate consumption-oriented attitude of consumers, eliminate a waste of resources, and go far toward the environmental problem solving.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.6
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• pp.1081-1086
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• 2023

The rapid growth and increasing complexity of modern networks have highlighted the limitations of traditional network architectures. The emergence of SDN (Software-Defined Network) in response to these challenges has changed the existing network environment. The SDN separates the control unit and the data unit, and adjusts the network operation using a centralized controller. However, this structure has also recently caused a huge amount of traffic due to the rapid spread of numerous Internet of Things (IoT) devices, which has not only slowed the transmission speed of the network but also made it difficult to ensure quality of service (QoS). Therefore, this paper proposes a method of load distribution by switching the IP and any server (processor) from the existing data processing scheduling technique, RR (Round-Robin), to mapping when a large amount of data flows in from a specific IP, that is, server overload and data loss.

• Proceedings of the KSR Conference
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• 2006.11b
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• pp.1017-1028
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• 2006

Japanese railroad companies continued growing by developing diversification based on a railroad enterprise. However, after entering in the 1990s, the diversification model of a railroad company reached the management limit. Under economic depression, A decrease in the birthrate and aging progressed and passenger transport changed to the downward tendency. Nevertheless, since railroad investment was expanded, railroad achievements got worse and price competitiveness with JR East Japan became weak. But the achievements of a diversification section got worse compared with the railroad enterprise. Therefore, group management was thought as important and enterprise reorganization was developed.

• Korean Journal of Heritage: History & Science
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• v.40
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• pp.5-34
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• 2007

Archaeological Heritage is material testimony of national and regional history, and it is one of the tourist's attractions. So it has very important meaning and identical value for a local residents. Public concern on the heritage site elevate higher day by day. They are willing to use it for a multiful purpose, cultural, educational, and even commercial one. But Archaeological Heritage is fragile, and visitors can impact negatively for protection and management of the authenticity on the heritage site. In this research I try to compare legal and administrative measure for the protection, management, and culturalization of Archaeological Heritage in many countries. And I suppose sustainable and practical strategies for keeping integrity of heritage.