• 한국HCI학회:학술대회논문집
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• 2006.02a
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• pp.1228-1233
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• 2006

적응순항제어시스템은 선행차량과의 거리와 속도를 자동적으로 안전하게 유지하여 운전의 안전성과 편의성을 향상시키는 시스템이다. 본 연구에서는 적응순항제어시스템의 안전성을 향상시키기 위한 연구를 수행하였다. 적응순항제어시스템의 작동 상태 및 주변 차량 정보를 운전자에게 제공해 주기 위한 시각 및 음성정보 전달장치를 설계 및 제작하였다. 시각정보 전달장치를 통해 선행차량과의 차간거리, 속도, 가감속 상태 등을 운전자에게 전달하였고, 음성정보 전달장치를 이용하여 선행차량과의 근접거리 경보 등의 메시지를 전달하도록 하였다. 이러한 조건에서 운전자가 적응순항제어시스템을 사용하여 운전하는 경우, 시각 및 음성정보 전달장치의 유무에 따른 차량 조작과 차량 운전 성향 및 특성의 변화를 살펴봄으로써 정보전달장치를 통한 안전성 향상에 관한 영향을 연구하였다. 연구 결과, 운전자에게 정보 전달장치를 통해 정보가 제공되었을 경우, 운전자는 차량의 운전 및 적응순항제어시스템 사용에 있어 편안함을 느낄 수 있었고, 선행차량과의 차간거리를 보다 넓게 설정하여 주행 안전성을 향상시키는 것을 확인할 수 있었다. 또한 정보전달장치를 통한 정보 수집이 차량 운행에 저해 요인으로 작용하지 않음을 확인할 수 있었다. 이러한 결과는 정보전달장치를 통한 정보전달은 운전자에게 적응순항제어시스템에 대한 편의성 및 효율성, 안전성을 더욱 향상 시킬 수 있음을 보인다.

• Proceedings of the Korean Fiber Society Conference
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• 2001.10a
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• pp.235-237
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• 2001

유전자 전달체에는 바이러스성 유전자 전달체와 비바이러스성 유전자 전달체의 두 종류가 있다. 바이러스성 유전자 전달체의 장점은 바이러스가 인체의 여러 세포에 침투가 용이하므로 유전자 전달의 효과가 크다는 것이다. 반면 바이러스에 의한 부작용과 인체의 면역 작용에 바이러스의 퇴치가 빠르게 진행되어 목적하는 효과가 반감된다는 단점이 있다. (중략)

• (The)Study of the Eastern Classic
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• no.69
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• pp.419-450
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• 2017

This study aims to discover the clue of the current modern postal system development by looking at the delivery patterns of Korean letters during the Joseon Dynasty. A letter is a text medium that the sender sends to a recipient by sending a message of news. The form and contents of the letter are influenced by the various surrounding factors and are adapted to circumstances. The study aims to clear up the method of delivery and the nature of the transmitter among the environmental factors which affects the format and contents of Korean letters. Depending on the public or private matters, the delivery method is divided into a public agency and a private messenger, or divided into one-phase delivery and the multi-phase delivery depending on whether or not a phase is divided into stages. It is also divided into a one-way and a round-transmission depending on whether or not it is round-switched. The transmitter is divided into a verbal communication, the letter and verbal communication, and the letter communication according to whether or not it is by verbal, and divided into the relational and the non-relational person according to the relationship with the sender. Also depending on whether the transmitter is exclusive or not, it is divided into the exclusive messenger and the messenger who deliver a letter incidentally while come and go. In the aspect of the delivery method, We can see the possibility of developing to a modern mail system through the public method, the multi-phase delivery, one-way delivery and in the aspect of the transmitter, we can see the possibility through the letter delivery, non-related transmitter, and the exclusive messenger.

• The Journal of the Korea institute of electronic communication sciences
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• v.6 no.4
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• pp.465-471
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• 2011

This study was to examined the acceptance of communication for people through smart phone focused users of smart phone. The results were as follows. First, smart phone's mobility influenced positively on attitude toward the transmission of government policy. smart phone's personal appropriateness influenced positively on awareness toward the transmission of government policy and usefulness toward the transmission of government policy. And smart phone's usefulness influenced positively on usefulness toward the transmission of government policy. Second, smart phone's ease of use influenced positively on awareness toward the transmission of government policy. smart phone's security influenced negatively on awareness, usefulness, attitude toward the transmission of government policy. smart phone's connectivity influenced positively on awareness toward the transmission of government policy. Third, usefulness and attitude toward the transmission of government policy through smart phone influenced positively on acceptance intention.

• The Journal of the Korea Contents Association
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• v.13 no.12
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• pp.402-411
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• 2013

Mobile contents market is growing with the rapid adoption of smart-phones. Online access via mobile compared to PC-based online access, has distinctive service delivery characteristics which are ubiquitous connectivity and contextual offer. In addition, this study includes characteristics which are relatively disadvantageous for mobile services compared to PC-based services. These are response time and supporting non-verbal informations. This study investigates the influence of service delivery characteristics to perceived interactivity and mobile service attitude. The results show that mobile services' ubiquitous connectivity and contextual offer showed a positive relationship with the perceived interactivity of the mobile service. And the response time also showed a positive relationship with the perceived interactivity, but non-verbal information didn't. When the trade-off is met between response time and nonverbal information, mobile service developer should choose response time since it has positive effect on perceived interactivity and attitude.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.22 no.5
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• pp.764-771
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• 2018

This study focused on shape attributes in a basic study that identified infographics expression diversification and delivery efficiency based on formative attributes. To achieve that goal, formative attributes were categorized as geometric or expressional type, and significant differences between them were found by identifying the attributes of each type. The study analyzed the correlations between each infographic type's formative attributes and content delivery. The results found that regularity, clarity, visibility, and content delivery were attributes of the geometric type, whereas expressionality, visibility, clarity, and content delivery were attributes of the expressional type. Further analysis of the attributes focusing on content delivery found that regularity and visibility significantly influenced content delivery for the geometric type, and expressionality and clarity significantly influenced content delivery for the expressional type. Thus, this study empirically confirmed that formative attributes of infographics distinguished between expression types with statistically significant differences during the visualization process. And that specific factors influencing content delivery were formative attributes.

• Asia Marketing Journal
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• v.1 no.2
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• pp.36-55
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• 1999

서비스 인카운터의 제고는 서비스기업의 마케팅성과에 매우 중요하다. 서비스 인카운터는 서비스기업의 경쟁전략과 서비스전달시스템간의 적합성에 의해 영향을 받는다. 그러므로 서비스기업의 경쟁전략과 서비스전달시스템간의 적합성정도는 서비스기업의 마케팅성과를 높이는데 있어 핵심성공요인이 된다. 본 논문은 금융산업을 대상으로 서비스기업의 경쟁전략, 서비스전달시스템 결정요인, 서비스전달시스템의 유형간의 적합성 여부가 마케팅성과에 미치는 영향에 대해 실증분석을 하였다. 실증분석 결과 서비스기업의 경쟁전략과 서비스전달시스템 결정요인간의 적합도가 높을수록, 그리고 경쟁전략과 서비스전달시스템의 유형간의 적합도가 높을수록 마케팅성과가 높아지는 것으로 나타났다.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 1994.10a
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• pp.192-196
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• 1994

본 연구에서는 동적영향계수의 축차전달에 그 개념을 두고 있는 전달영향계수법을 이용하여 탄성적으로 지지된 원통형 쉘구조물에 대하여 자유진동 해석 알고리즘을 정식화하였다. 탄성지지가 없는 일단 고정, 타단 자유의 간단한 모델에 대한 수치실험을 통해서 전달영향계수법으로 구한 해를 전달매트릭스법 및 Irie의 결과와 비교하여 본 기법의 유용성을 검증하였다. 또한, 탄성지지를 갖는 모델에 대해서는 본 방법으로 구한 해와 전달매트릭스법으로 구한 해를 비교 검토하여, 본 기법의 유용성을 확인하였다.

• Journal of Digital Contents Society
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• v.10 no.4
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• pp.649-657
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• 2009

Usually, The data transmission processing efficiency of the distributed system running on high speed networks depends on the system architecture and the data transmission processing system. In order to secure the real-time rate and the system reliability, the real-time distributed simulation system on the distributed environment has tried to satisfy the performance required by the data transmission processing system. However, the client/server-based data transmission processing system in the real-time simulation system has been difficult to satisfy the system stability, extensibility and maintenability, especially when system changes. So, it is natural to study another improved data transmission processing system to solve the problems at the existing real-time simulation system. After analyzing the existing real-time simulation system, this paper will propose the improved real-time data transmission system by using Software Design Pattern, which enhances extensibility, interoperability, reusability and maintenability of the system.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.37 no.8B
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• pp.695-705
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• 2012

Due to recent advances in wireless devices and the automotive industry, Vehicular Ad hoc Networks (VANETs) have emerged as a very promising technology for transferring data collected on the road by moving cars. The delivered data may contain emergency information which affects the safety of passengers and drivers as well as the traffic congestion, and the routing protocols have thus a significant impact on the performance of VANETs. In this paper, we study the impact of movement direction of the participating cars which forward data packets on the performance of data delivery and present a new approach which extends the contention-based forwarding (CBF). The proposed reliable CBF (R-CBF) increases the reliability of data deliver on the traffic lights installed roads and reduces the overall propagation delay without routing loops or interruption of data forwarding that may be caused by changes of relative positions of involving cars in routing. Simulation demonstrates that the R-CBF diminishes propagation delay by 38% in comparison to G-SRMB which forwards data to moving cars in the backward direction and eliminates unnecessary retransmissions.