• 한국콘텐츠학회논문지
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• 제17권9호
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• pp.281-291
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• 2017

가상공간의 발달로 인해 비즈니스 환경의 변화도 가속화되고 있다. 이러한 환경에서의 커뮤니케이션은 의미전달 뿐 아니라 감성을 교류하는 감성 커뮤니케이션을 목표로 하고 있다. 그러나 사용자가 필요로 하는 감성에 관한 연구는 부족하다. 본 연구의 목적은 비즈니스 시나리오 기반으로 감성 어휘 모델링을 도출한 후, 해당 감성의 시선 요소를 분석하는 것이다. 이를 위해 417개의 관련 감성 어휘를 수집하여 적합성 검증 후 16개의 대표 어휘를 도출하였고, 다차원척도분석을 통해 2차원 공간에 맵핑하였다. 그 후, FGD를 통해 X축은 협력, 경쟁, Y축은 낮은 몰입, 높은 몰입으로 차원을 정의하였다. 52명의 피험자를 대상으로 해당 감성을 유발하는 자극을 제시하였고 시선 움직임 데이터를 수집하였다. 분석 프로그램을 통해 상대방의 얼굴, 오른쪽 눈, 왼쪽 눈, 코, 입을 관심영역으로 설정한 후, 평균 시간, 비율, 고정점, 다시 돌아오는 횟수의 데이터를 추출하였다. 독립 t-검정 결과, 협력일 때는 경쟁보다 얼굴, 눈, 코 영역에서 시선 요소가 증가하였고, 낮은 집중의 경우 높은 집중보다 오른쪽 얼굴, 코 영역에서 시선요소가 증가한 것을 확인하였다. 이는 가상공간에서의 비즈니스 환경에서 필요한 감성을 평가하는 데 기초 연구로써 활용가능 할 것으로 기대된다.

• 한국실내디자인학회논문집
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• 제26권1호
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• pp.43-52
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• 2017

Although nursing homes where physically weak seniors live must be planned as an healing environment for maintaining and improving holistic health conditions of the senior residents, many of the nursing homes in Korea are currently placed in poor environment due to lack of minimum criteria or design guideline for spatial planning. Therefore, this study aims to extract healing elements shown in nursing home design guidelines that have been developed and utilized in several developed welfare countries where aging has started before Korea. The subjects of this study were 4 international nursing homes design guidelines; and they were analyzed by the content analysis technique. As for analysis units, design guideline items were selected; and spatial composition, three dimensions of health, and healing elements for supporting the health conditions were used as analysis categories. As results, firstly, among total 259 guidelines, the guidelines that commonly applied to all the spaces turned out to be the most, then the guidelines to be applied in bathroom turned out to be the most. Secondly, in terms of holistic health, the proportion of design guideline for supporting physical health turned out to be highest followed by the one for mental health and social health. Thirdly, In terms of healing elements, items for safety, accessibility, comfort, and convenience that supported physical health and cognition that supported mental health turned out to be high. This study is expected to provide the framework for comprehensively understanding the existing design guidelines of nursing homes in the perspective of healing and to be utilized as fundamental resource for spatial planning to improve healing effects in the nursing homes in the future.

• 동남아시아연구
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• 제24권2호
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• pp.35-79
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• 2014

This study examines the measures for the activation and the growth of intra-regional trade in Southeast Asia taking a look at the four dimensions of tariff rates, non-tariff barriers, trade facilitations, and trade infrastructures. Utilizing a gravity model, we performed empirical analysis and discussed the policy implications with the priorities to implement. To expand the intra-regional trade in Southeast Asia it would be necessary to enhance the level of trade facilitations and provide trade infrastructures, such as ports and airports as well as cutting the tariff rates and eliminating the non-trade barriers. In particular, in the case of exports of ASEAN6 to ASEAN6 the infrastructure is the important factor. Also, in the case of the exports of ASEAN6 to CLMV(Cambodia, Laos, Myanmar, and Vietnam), it is expected that eliminating non-tariff barriers and enhancing trade facilitations may play important roles in the progress of intra-regional trade. These results may provide the important implications for Southeast Asian countries, which are trying to promote intra-regional trade ahead of the constitution of ASEAN Economic Community by 2015. Southeast Asian countries could be evaluated to achieve a certain level of trade liberalization and economic integration through the formation of AFTA. But in order for Southeast Asia to develop to advanced economic integrated region it requires mutual cooperations and policy harmonizations among regional countries. Also, for the elimination of non-tariff barriers, promoting trade facilitations, and providing infrastructures, the administrative, legal, and institutional measures would have to be fulfilled in advance. In addition, capital investment for constructing infrastructures would be necessary to realize the intra-regional trade expansion. However, to achieve the goal, it would require a large capital investment and highly mandated policy considerations and harmonizations among Southeast Asian countries in terms of further trade liberalization and economic integration.

• 대한안전경영과학회지
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• 제19권4호
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• pp.273-282
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• 2017

This paper is aimed at proposing a new approach to connecting the measurements of customer satisfaction on healthcare services with the prioritized identification of healthcare service processes to be improved. As customers' requirements for healthcare services have become too diverse and healthcare service systems have been increasingly complex, there has been growing interest in the customer-oriented evaluation of healthcare service quality and the systematic improvement of healthcare service processes. Most of the previous studies on service quality evaluation are based on SERVQUAL model. However, because of the unique characteristics and constraints inherent in healthcare service systems, it has been reported that SERVQUAL would be inadequate to be applied to healthcare service systems. As an alternative, SERVPERF has recently been widely used in the evaluation of healthcare service quality. However, there is a lack of studies on how to use the measurements of healthcare service quality systematically to improve service functions and processes. With this issue in mind, we firstly measured the customer-perceived satisfaction on the healthcare service quality from the six dimensions based on SERVPERF. Then we identified the relationships between the subjective measurements and healthcare service processes through brainstorming and expert interview. By using the relationships, we developed a customer journey map in healthcare services that visually describe the interaction between customers and healthcare service systems. The developed customer journey map would help service designers easily identify a healthcare service process that needs to be improved with priority. It is expected that the design improvement process proposed in this study would be a useful method for enhancing the quality of healthcare services.

• 한국컴퓨터정보학회논문지
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• 제26권10호
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• pp.45-51
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• 2021

본 논문에서는 농업용 전기차의 경량성과 생산의 효율성을 개선하기 위한 전면부의 진공성형 방식의 3차원 설계 방법을 제안한다. 농업용 전기차는 충돌에 대비한 재질의 강도적인 측면에서 다소 자유로움을 가지지만, 경량성 및 생산의 효율성이 매우 중요하다. 본 연구에서는 레이저 가공, 절곡, 도장 등의 복잡한 가공 공정을 대체할 수 있는 진공성형 설계 방법을 제안한다. 전기차 전면부의 3차원 설계 및 진공성형 금형 기술 개발을 통하여 제품의 안정성과 생산성 및 편의성을 향상시키는 것이 연구의 주요 목적이다. 연구는 CATIA를 이용한 모델링, ABAQUS를 이용한 구조 안정성 해석, 시제품 제작 및 3D Scan을 이용한 치수 확인 및 실제 전기차 사용환경에서의 실제 주행시험의 순으로 진행되었다. 본 연구를 통하여 전기자 전면부 진공성형 방식의 타당성이 검증되었으며 이 결과는 농업용 전기차의 생산자 및 농업 종사자들에게 널리 사용될 수 있을 것으로 기대된다.

• Advances in Computational Design
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• 제4권2호
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• pp.73-90
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• 2019

The growth in the number of single-member households is a critical issue worldwide, especially among the elderly. For those living alone, who may be unaware of their health status or routines that could improve their health, a continuous healthcare monitoring system could provide valuable feedback. Assessing the performance adequacy of activities of daily living (ADL) can serve as a measure of an individual's health status; previous research has focused on determining a person's daily activities and extracting the most frequently performed behavioral patterns using camera recordings or wearable sensing techniques. However, existing methods used to extract common patterns of an occupant's activities in the home fail to address the spatio-temporal dimensions of human activities simultaneously. Though multiple sequence alignment (MSA) offers some advantages - such as inherent containment of the spatio-temporal data in sequence format, and rapid identification of hidden patterns - MSA has rarely been used to extract in-home ADL routines. This research proposes a method to extract a household occupant's ADL routines from a cumulative spatio-temporal data log of occupancy collected using a non-intrusive method (i.e., a tomographic motion detection system). The findings from an occupant's 28-day spatio-temporal activity log demonstrate the capacity of the proposed approach to identify routine patterns of an occupant's daily activities and to reveal the order, duration, and frequency of routine activities. Routine ADL patterns identified from the proposed approach are expected to provide a basis for detecting/evaluating abrupt or gradual changes of an occupant's ADL patterns that result from a physical or mental disorder, and can offer valuable information for home automation applications by enabling the prediction of ADL patterns.

• 한국해양공학회지
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• 제33권1호
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• pp.68-75
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• 2019

A low-crested structure (LCS) is an excellent feature not only because it provides shore protection but also because it is fully submerged. However, in order to properly control waves, it is necessary to maintain a certain range of crest height and width in consideration of the wave dimensions at the installation area. According to previous studies, an LCS has some wave breaking effect when the crest width is more than a fourth of the incident wavelength and the crest depth is less than a third of the incident wave height. In other words, if the crest width of the LCS is small or the crest depth is large, it cannot control the wave. Therefore, when an LCS is installed in a large sea area with a great tidal range in consideration of the landscape, waves cannot be blocked at high tide. In this study, the hydraulic performances of a typical trapezoidal LCS with a constant crest height and a low-crested structure with an adjustable crest height, which was called a tide-adapting low-crested structure (TA-LCS) in this study, were compared and evaluated under various wave conditions through hydraulic experiments. It was found that the wave transmission coefficients of the TA-LCS at high tide were lower than the values for the typical LCS based on empirical formulas. In addition, the hydraulic performances of the TA-LCS for wave reflection control were 12.9?30.4% lower than that of the typical LCS. Therefore, the TA-LCS is expected to be highly effective in controlling the energy of incoming waves during high tide even in a macro-tidal area.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2014년도 추계학술대회
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• pp.882-885
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• 2014

최근, 기후변화에 의해 가뭄 및 홍수의 발생빈도 및 지속시간이 길어지고, 하천유량감소 및 연도별 편차가 증대하고 있다. 이러한 추세는 지속될 것으로 예상되며, 수자원의 관리는 수량, 수질 등을 종합적으로 분석하고 관리하는 쪽으로 변화하고 있다. 이러한 수자원의 관리를 위해서는 수자원관련 기초자료의 취득, 저장, 처리, 활용 등이 유기적으로 이루어져야 하는데, 이를 전자적으로 수행하는 것을 홍수경보시스템이라 하고, 이는 수문관측시스템과 경보방송시스템으로 구분할 수 있다. 수문관측시스템은 댐 유역의 수문현황을 관측할 수 있는 수문관측소(수위, 강우량, 수질)에서 계측된 수문관측자료를 인공위성 등 다양한 통신망을 통하여 댐 사무소에 위치한 중앙감시제어시스템에 전송되고, 수집된 수문관측자료는 1분 단위로 K-water본사에 전송된다. 전송된 자료를 활용하여 각종 수문분석 및 표출을 통해 대내 외에 제공되어 댐에 대한 이 치수의 의사결정을 지원한다. 본 논문에서는 수문관측시스템 구축방안에 대해서 알아본다.

• 전기전자학회논문지
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• 제23권2호
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• pp.425-430
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• 2019

본 논문에서는 게이트 길이가 $0.25{\mu}m$인 GaN HEMT 기술을 사용하여 개발된 X-대역 전력 증폭기의 특성을 기술한다. 개발된 X-대역 전력 증폭기는 9~10 GHz의 대역에서 22.7 dB 이상의 소신호 이득과 43.02 dBm(20.04 W) 이상의 포화 출력 전력을 가진다. 최대 포화 출력 전력은 9.5 GHz에서 43.84 dBm (24.21 W)이였다. 전력 부가 효율은 41.0~51.24%의 특성을 얻었으며 칩의 크기는 $3.7mm{\times}2.3mm$이다. 출력 전력 밀도는 $2.84W/mm^2$를 나타내었다. 개발된 GaN 전력 증폭기는 다양한 X-대역 레이더 응용에 적용 가능할 것으로 예상된다.

• 전기전자학회논문지
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• 제24권4호
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• pp.1093-1097
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• 2020

본 논문에서는 위성 통신 시스템 응용을 위하여 Ku-대역에서 동작하는 3 W PHEMT MMIC 전력 증폭기의 특성을 기술한다. 3 W PHEMT MMIC 전력 증폭기는 WIN(wireless information networking) semiconductor Corp.에서 제공하는 게이트 길이가 0.25 ㎛인 GaAs 기반 PHEMT (pseudomorphic high electron mobility transistor) 공정을 사용하여 개발되었다. 개발된 Ku-대역 PHEMT MMIC 전력 증폭기는 13.75 GHz에서부터 14.5 GHz까지의 동작주파수 범위에서 22.2~23.1 dB의 소신호 이득과 34.8~35.4 dBm의 포화 출력 전력을 가진다. 최대 포화 출력 전력은 13.75 GHz에서 35.4 dBm (3.47 W)이었다. 전력 부가 효율은 30.8~37.83%의 특성을 얻었으며 칩의 크기는 4.4 mm×1.9 mm이다. 개발된 PHEMT MMIC 전력 증폭기는 다양한 Ku-대역 위성 통신 시스템 응용에 적용 가능할 것으로 예상된다.