• 한국산업정보학회논문지
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• 제17권1호
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• pp.11-20
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• 2012

Due to the development of internet technology, the online business trade becomes an active area. Online negotiation supporting systems have been developing very actively in recent years to meet the growing needs. We have been studying on the effect that the haptic device brings about in interaction through online negotiation between two parties. In order to meet the online negotiation's requirements, the developed interface should be able to protect user's anonymity, convey user's emotion and make the scene alive.In this study, we adopt haptic interaction as a means of conveying emotion in an online negotiation between Japanese and Chinese people. In this study, our goal is to investigate the effectiveness of haptic interaction in communications between Chinese and Japanese users and analyze the characteristis in operation the haptic device. We conducted online negotiation experiments with and without haptic interaction . The comparison experiments results show that the haptic feedback can help to convey the emotion and the sense of presence. The Chinese subjects' feedback for the questionaire concerning the emotional communication and the sense of presence varies slightly compared to the Japanese subjects. We also found when using the haptic device, the force feedback can influence subject's feelings.There is little significant difference between the advanced and the medium subjects in negotiation dialogues and the haptic device's operation, the beginner subjects are slightly at a disadvantage.

• 대한의용생체공학회:의공학회지
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• 제27권5호
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• pp.274-281
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• 2006

In this paper, we propose a ubiquitous $SaO_2$ monitoring system for patients using oxygen therapy. For these patients, the ability to monitor oxygen saturation ubiquitously is very important fur accurate adjustment of ventilator's flow rate to match the patient's time-varying requirements with the shortest lag time possible. We have developed a portable device to measure $SaO_2$ and transmit it to hospital in real-time or in store-and-forward mode through the integration of $Bluetooth^{TM}$ technology and the code division multiple access (CDMA) cellular network. We also developed software for doctors to receive and manage the patients' $SaO_2$ information. Performance of the developed system was evaluated as acceptable by assessing the accuracy of the measured oxygen saturation value and the stability of communication network. Test results in real clinical setting demonstrate that our system is feasible for immediate use in home oxygen therapy.

• 한국정보통신학회논문지
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• 제23권12호
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• pp.1571-1577
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• 2019

심리 상담이나 심리치료에 대한 관심이 증가하고 있으며 관련 전문가들은 보다 효율적으로 내담자를 돕기 위해 노력하고 있다. 사이버 상담이 지닌 여러 가지 장점을 고려할 때 사이버 상담은 전통적인 대면 상담의 좋은 대안이 될 수 있다. 본 논문에서는 국내에서의 사이버 상담 및 심리치료 동향을 살펴보았다. 그 결과, 전통적인 상담과 사이버 상담을 비교해 볼 때 사이버 상담은 접근성, 편리성, 비용 절감, 대면상담에서의 불편감 감소 등의 장점을 지니고 있었다. 또한 국내에서의 사이버 상담은 1980년대 후반부터 시작되었고 정보통신 기술에 익숙한 청소년층을 대상으로 한 연구가 많았다. 마지막으로 현재 국내의 사이버 상담 및 심리치료 활용 현상을 간략히 살펴보았는데 현재 화상, AI, VR 등을 활용한 사이버 상담 및 심리치료적 개입이 이루어지고 있었다. 그러나 다학제간 접근은 다소 부족하여 다학제간 접근을 통한 다양한 프로그램 개발 및 효과 검증이 필요하다.

• 한국정보통신학회논문지
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• 제23권10호
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• pp.1209-1215
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• 2019

의사소통은 간호사가 대상자와의 치료적 관계 및 다양한 직종간의 협력관계를 형성하여 성공적인 간호중재를 이끄는데 있어 중요한 요소이며 이에 간호대학생들에게 효과적인 의료인 간의 의사소통 능력 함양 할 수 있는 의사소통 교육프로그램을 개발하고 그 효과를 분석하여 간호교육 전략을 모색하고자 하였다. 연구대상은 P 대학교 간호학과 4학년에 재학중인 학생 54명이며, 연구결과, 대상자의 의사소통명확성 (t=-7.75, p<.001)과 셀프리더십 (t=-4.43, p<.001)은 유의한 차이가 있었고, 의사소통 만족도는 교육 후에 점수가 증가하였으나 유의한 차이가 없었다 (t=-1.22, p=.226). 결론적으로 SBAR를 활용한 학제간 의사소통 교육프로그램은 간호대학생의 의사소통명확성과 셀프리더십에 긍정적인 효과가 있으며 다양한 시나리오의 개발과 반복 훈련을 할 수 있는 지속인 교육개발이 필요하다.

• 대한의용생체공학회:의공학회지
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• 제37권6호
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• pp.209-214
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• 2016

Binaural hearing aids with a voice transmitter have been widely used to enhance sound quality in noisy environment. However, this system has a limitation on sound-source localization. In this study, we investigated automatic directional-gain control method using geomagnetic sensors to provide directional information to binaural hearing aid user. The loudness gains of two hearing aids were differently controlled based on the directional information between a speaker position and a viewing direction of hearing aids user. This relative directional information was measured by two geomagnetic sensors on hearing aids user and a speaker. The results showed that the loudness gains were accurately controlled and could provide directional information based on the cue of interaural level differences.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1997년도 춘계학술대회
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• pp.64-67
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• 1997

In the total artificial heart(TAH), a transcutaneous information transmission system(TITS) is vely important to monitor the TAH status and detect the device failure, and repair the possible problems. First of all, the communication channel(skin) and method were simulated in terms of transmittance, scattering, reflection and absorption, then the system was designed with size reduction including low power consumption and reliability compared to the previous one. The informations are transmitted through the skin(approximately 1cm in depth) by frequency modulated near infrared(NIR) pulses using 780nm laser diodes as transmitters and photodiode as receiver with high speed and high spectral sensitivity. The logic high and low frequencies are 3MHz, 1MHz respectively. The system is a bidirectional data link for more than 38.4Kbps data rate, full-duplex with a bit error rate of less than $10^{-5}$.

• Rapid Communication in Photoscience
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• 제2권2호
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• pp.46-51
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• 2013

This study reports a fiber-optic sensor detecting biomolecule by simultaneously monitoring localized surface plasmon resonance (LSPR) from gold nanoparticles (Au NPs) of ca. $50{\pm}5$ nm attached on one end of optical fiber and surface enhanced Raman scattering (SERS) of the reporter molecules adsorbed on the gold surfaces as an additional sensing tool. The sensor was fabricated by immobilizing Au NPs on one end of an optical fiber by chemical reaction. LSPR and SERS signals of the sensor were measured using various refractive indices solutions. Finally, the sensor was applied to observe real-time LSPR sensor-gram and SERS spectra of the reporter molecule of 4-aminothiphenol during the antibody-antigen reaction of interferon-gamma (IFN-${\gamma}$) as a proof-concept experiment of biological applications.

• 실천공학교육논문지
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• 제6권1호
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• pp.31-36
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• 2014

지능융합 클러스터는 전기전자정보통신, 컴퓨터공학부, 건축공학부, 디자인공학과로 구성된 학제간 융합 프로그램이다. 지능융합 클러스터의 효과적인 운영방안을 도출하기 위하여 클러스터 소속의 학생과 교수를 대상으로 설문조사를 실시하고, 이 설문을 바탕으로 효과적인 운영안을 도출하였다. 운영안은 교과과정 운영 개선과 연구 활성화를 위한 두 가지 측면으로 제시되었다.

• Journal of information and communication convergence engineering
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• 제9권4호
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• pp.358-362
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• 2011

The National Emergency Management Agency of South Korea has established a Disaster Victims Psychology Support Center. The Disaster Victims Psychology Support Center can enable victims who got psychological damage from disasters to return to their daily lives through healing activity, field visits and advice of experts. The previous Psychology Support Center System managed the information of disaster victims through an independent database. However, this paper proposes a system that is developed to identify medical institutions and mental health centers within a distance of radius, based on the potential Hot-Spot areas of disaster victims using the GIS Systems. The proposed system can efficiently support selection of appropriate institutions for disaster victims using their location and age, classification of damage, and damaged parts of the body. Also, this spatial analysis can assist to decide on a policy based on the location of disaster victims and the extent of damage. Therefore, this paper can provide the required information to support decision making based on the concentrated areas for disaster victims.

• International journal of advanced smart convergence
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• 제10권4호
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• pp.84-97
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• 2021

Digital twins are one of the promising digital technologies used to facilitate digital transformation. Therefore, it needs to continually be developed remain relevant in industry and academia. Consolidation of research is required to create a common understanding of the topic and to ensure that future research is built upon a solid foundation. Based on a bibliometric review and a thematic analysis of 217 publications on digital twins from the past two decades, this paper creates and analyzes a visual knowledge map and proposes areas for further research. To comprehensively analyze the development trends and research trends of digital twins, we performed statistical analysis of the relevant literature on digital twins within the core collection database of Web of Science. Through our research, we have shown that the current situation, trends, and hotspots of digital twin research were analyzed via CiteSpace. This study demonstrates that research on digital twins is rapidly growing in popularity, that the output of the research depends largely on the core group of authors conducting it, and that digital twins warrant cross-domain and cross-disciplinary research pathways.