• 한국HCI학회논문지
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• 제12권4호
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• pp.17-25
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• 2017

이 연구는 자동차-인간 상호작용 디자인의 관점에서 사용자경험을 핵심 가치로 하는 경험 마케팅 패러다임의 효과를 확인하고자 하였다. 주행 맥락과 비주행 맥락을 구분하여 스마트 크루즈 컨트롤과 스마트 트렁크를 사례로 하여 전통적 마케팅과 경험 마케팅 메시지를 대비한 실험을 시행하였다. 분석 결과 두 기능 모두 경험 마케팅 메시지가 전통적 메시지 노출에 비해 전반적 만족도가 높았다. 유용성, 사용성, 감성에서도 부분적으로 경험 마케팅 메시지 효과가 높게 나타났다. 이 연구의 의의는 경험 마케팅 패러다임을 자동차 UX에 적용하여 검증한 데 있으며, 실무적으로는 스마트 자동차 시스템의 경험 디자인 가치를 예증하였다.

• 한국IT서비스학회지
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• 제12권1호
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• pp.83-98
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• 2013

Advanced IT of Korea is the important factor that has improved the performance of business to business e-business systems, especially On-Line E-procurement System (KONEPS). Obviously KONEPS is well positioned in businesses of Korea. In order to be higher performance in KONEPS, it needed to be analysed important characteristics composed of KONEPS. Even though KONEPS has been operating well, user's satisfaction and customer loyalty for KONEPS was not high in real businesses. In this research, we tried to find the factors affecting user satisfaction and customer loyalty for KONEPS and figure out the mechanism among the factors. We surveyed using characteristics, which are information diversity, usability, system reliability and stability, on suppliers, main users of KONEPS. We consider the using characteristics as independent factors of the research model. Meanwhile, we model user's satisfaction and customer loyalty as the dependent factors. The results from the study are helpful in providing policies and strategies to promote the use of KONEPS.

• 대한산업공학회지
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• 제37권1호
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• pp.10-18
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• 2011

Ergonomic product design considering users' natural use motion is of importance to improve the usability and satisfaction of a product. A five-step process of product design was developed in the present study by measuring and analyzing users' natural product-use motion with a motion capture system. The developed process was applied to ergonomic design improvement of a half guard installation part of refrigerator; new guard designs (diagonal and arc shape) were developed with the process and evaluated in terms of validity during the development as two measures (task satisfaction and similarity of natural motion). According to the evaluation result, the satisfaction at putting in- and out-task of new guard designs ($6.3{\pm}0.5$ points) was significantly higher than that of existing guard designs ($3.3{\pm}1.0$ points); the difference between natural motion and product-use motion in new guard designs ($1.0{\pm}0.3cm$) was significantly less than that of existing guard designs ($2.0{\pm}0.2cm$). The proposed process of natural motion analysis and product design is applicable to ergonomic product design and evaluation.

• 펄프종이기술
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• 제48권2호
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• pp.46-55
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• 2016

The microcrystalline cellulose (MCC) was prepared from oil palm biomass, empty fruit bunch (EFB) for increasing the usability of EFB. The morphological, physical and chemical properties of MCC made from EFB were evaluated by comparing with those of the commercial MCC obtained from AVICEL. The EFB-MCC had the wider distribution in particle size and there were many small particles around $10{\mu}m$. There were no significant differences in the cellulose crytallinity and the chemical composition between EFB-MCC and AVICEL-MCC. The properties of tablet samples made by the common direct compression process were evaluated depending on the types of MCC and the compression pressure during tablet making process. The tablet made of EFB MCC showed the higher compressed structure, which resulted in the less disintegration by the water soaking treatment than those made of Avicel-MCC. The results of this study showed that the EFB-MCC could be utilized as one of the commercial MCC.

• 대한의용생체공학회:의공학회지
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• 제26권5호
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• pp.257-264
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• 2005

This paper proposes an ionic polymer metal composite (IPMC) based artificial muscle to be applicable to the Myoelectric hand prosthesis. The IPMC consists of a thin polymer membrane with metal electrodes plated chemically on both faces, and it is widely applying to the artificial muscle because it is driven by relatively low input voltage. The control commands for the IPMC-based artificial muscle is given by electromyographic (EMG) signals obtained from human forearm. By an intended contraction of the human flexor carpi ulnaris and extensor carpi ulnaris muscles, we investigated the actuation behavior of the IPMC-based artificial muscle. To obtain higher actuation force of the IPMC, the single layered as thick as $800[{\mu}m]$ or multi-layered IPMC of which each layer can be as thick as $178[{\mu}m]$ are prepared. As a result, the bending force was up to the maximum 12[gf] from 1[gf] by actuating the single layered IPMC with $178[{\mu}m]$, but the bending displacement was reduced to 6[mm] from 30[mm]. The experimental results using an implemented IPMC control system show a possibility and a usability of the bio-mimetic artificial muscle.

• 정보과학회 컴퓨팅의 실제 논문지
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• 제20권12호
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• pp.682-687
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• 2014

한글 초성 질의는 내비게이션 시스템이나 모바일 기기와 같이 입력 환경에 제약이 있어 오류가 빈번한 인터페이스 상에서 사용자 편의성 향상을 위하여 제공되는 중요한 기능이다. 본 논문에서는 한글 문자열을 자소 단위로 분해하여 재배열하여 환형 문자열로 변환한 후, 확장된 버로우즈-휠러 변환을 이용하여 색인함으로써 초성 질의 탐색을 위한 시공간 효율적인 자료구조를 제안한다. 또한 실험을 통하여 기존 기법에 비하여 더 적은 공간만을 사용하면서도 보다 다양한 형태의 질의를 처리할 수 있으며, 특히 질의어의 길이가 짧고, 초성의 비율이 높을수록 탐색 속도가 향상됨을 확인하였다.

• 가정과삶의질연구
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• 제28권2호
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• pp.89-96
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• 2010

This study examines how frequently employers offer family-friendly corporate programs and how frequently employees use the programs. This study also seeks to discover whether the implementation and utilization of family-friendly corporate programs results in an increase in employees' childbirths. Data were collected from 377 married full-time employees working in private sector companies located in Seoul and GyeongGi-Do. Frequency analyses of the employees' responses showed moderate rates of implementation of family-friendly corporate programs and much lower rates of employees' utilization. The hierarchical regression analysis revealed that the implementation of family-friendly corporate programs significantly predicted employees' childbirths. However, this was ineffective, having no significant influence on employees' childbirths, when their utilization of the programs was entered into the model. Higher rates of utilization of family-friendly corporate programs predicted more childbirths after employment. This study suggests that the implementation of family-friendly corporate programs per se is not a complete solution to get employees to have more babies. Rather, what matters is the usability of those programs. Finally, the implications of the study results are discussed.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2003년도 춘계학술대회
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• pp.1697-1702
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• 2003

In this paper, the effect of oxygen component in fuel on the exhaust emissions has been investigated for a direct injection diesel engine. It was tested to estimate change of engine performance and exhaust emission characteristics for the commercial diesel fuel and oxygenated blended fuel which has seven kinds of mixed ratio. And, the effects of exhaust gas recirculation(EGR) on the characteristics of NOx emission have been investigated. Ethylene glycol mono-n-butyl ether(EGBE) contains oxygen component 27% in itself, and it is a kind of effective oxygenated fuel of mono-ether group that the smoke emission of EGBE blended fuel is reduced remarkably compared with commercial diesel fuel, that is, it can supply oxygen component sufficiently at higher loads and speeds in a diesel engine. It was found that simultaneous reduction of smoke and NOx was achieved with oxygenated fuel and cooled EGR method.

• 여성건강간호학회지
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• 제23권3호
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• pp.155-165
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• 2017

Purpose: The aim of this study was to understand the hand-on breast massage techniques used by well-known experts in breastfeeding clinics. Methods: A qualitative multiple-case design was applied that involved a feasibility test. Four experts sampling qualitative data collected by observing participants and in individual interviews were analyzed by content analysis, linking data to the propositions, and cross-case pattern matching. This study explored differences within and between cases, and the possibilities of replicating findings across cases. Thirty-nine postpartum women participated voluntarily in the feasibility test, which investigated the usability of four massage techniques. Results: The four techniques showed considerable similarities in terms of the application of stimulation to the breast base and increased flexibility of the wired flexible body, which was the core mechanism underlying the techniques. The breast management strategies were consistent with existing practice guidelines with the exception of using cold cabbage to control engorgement pain. There was insufficient scientific evidence for supporting the massage techniques used by the experts. All of the techniques showed 100% education completeness, but application rates were higher for self-control-oriented techniques. Conclusion: The massage techniques applied by experts in breastfeeding were based on hypotheses and self-control techniques are feasible to apply in practice.

• 한국의류학회지
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• 제44권2호
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• pp.369-383
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• 2020

This study proposes a method to effectively teaching technic for pattern development and virtual garment manufacturing by adopting the K-MOOC platform for the Apparel Pattern CAD curriculum. According to K-MOOC guidelines, Apparel Pattern CAD curriculum were developed and presented through the K-MOOC platform. A questionnaire survey was utilized to evaluate K-MOOC platform features in terms of learner satisfaction when adopting the 5-point Likert scale. Questionnaire survey participants included 52 college students. The result of the survey found that most of the attributes of the K-MOOC platform were highly rated in terms of interaction and learning effectiveness. The user interface of the K-MOOC platform were shown to be satisfactory in terms of usability. Participants gave a positive assessment of the benefits of online lectures when comparing online and offline lectures. In particular, the preference for online lectures in computer-related courses such as CAD was higher than the offline. It was concluded that the Apparel Pattern CAD curriculum based on the K-MOOC platform was effective and satisfactory for learners in various aspects.