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Companion animals as a source of infectious diseases in human-animal interface
( Daesub Song ) 대한인수공통전염병학회 2019 창립총회 및 학술대회 초록집 Vol.2019 No.1
Human-animal interactions are critical for understanding the zoonotic viral diseases. The complex relationship between human and animal species has evolved since the advent of human species, bringing the interface without ceasing evolution, promoting the transmission, emergence and eventual evolution of infectious agents. Although companion animals which comprise a wide variety of species are major member of animals, along with farm or industrial animals and wildlife, their role in zoonosis has been neglected. Therefore, we reviewed the literature and several lists from world health organization (WHO) for infections of companion animals by zoonotic viruses and listed in hierarchy in terms of human health and economic impact. Viruses of highest concern included coronavirus, paramyxovirus, tick or mosquito borne viruses, creamian congo virus, hepatitis E virus, rotavirus, LCMV etc… Also, we have listed and described the possible zoonotic infectious diseases that can spread in domestic wild animal cafes And as examples of role of companion animals for viral infections, we reported the avian-to-dog interspecies transmission of influenza viruses and its continuous mutation have led the zoonotic possibilities from recent animal model studies. And we also found evidence for the anthroponotic transmission of human flu viruses to dogs. The above list of viruses provides an objective basis for more analysis of the risk of companion animals as sources of viruses for human. And the continuous emergences of zoonotic diseases emphasize the more targeted actions to reduce and prevent the risk of zoonosis transmitted via companion animals for healthy human-animal interfaces.
Intelligent Human-Vehicle Interaction
Daesub Yoon,Kyongho Kim,Jonghyun Park 대한인간공학회 2011 대한인간공학회 학술대회논문집 Vol.2011 No.5
Objective: The aim of this study is to develop the adaptively intelligent human-vehicle interaction system to reduce drivers' cognitive and visual distraction for automotive industry. Background: With the proliferation of in-vehicle information systems, drivers are not easy to focus on driving tasks while they are driving due to distractions from various in-vehicle information systems such as navigators, mobile phone etc. To reduce these distractions, in-vehicle information system needs to be aware driving situations and to provide right information at the right time. Such a system can be categorized to intelligent human-vehicle interaction system. In this paper, we propose intelligent HVI systems and discuss principal components of HVI system. Method: The intelligent HVI system is composed of 4 main principal components; (1) drivers' and driving situation sensing technology, (2) drivers' and driving situation modeling (3) drivers' workload measurements and criterion and (4) multimodal interaction. Results: The development of the adaptively intelligent human-vehicle interaction system is a Korean government funded project [MKE, 10033312]. This project is ongoing projects and expected to be completed in 2014. Conclusion: We expect intelligent HVI systems can reduce driving accidents by minimizing drivers' distraction. Application: The results of these systems can be easily applied to automotive industry.
윤대섭 (Daesub Yoon),최종우(Jongwoo Choi),김현숙(Hyunsuk Kim),노용완 (Yongwan Roh),홍광석(Kwangseok Hong) 한국HCI학회 2008 한국HCI학회 학술대회 Vol.2008 No.2
텔레매틱스환경에서 운전자는 외부로부터 들어오는 정보와 같은 외부 자극에 대해서 능동적으로 처리 할 수 있어야 한다. 그러나 최근 정보기기의 발전으로 운전자가 운전 중에 처리하여야 하는 정보의 양은 급격하게 늘어났고, 운전자의 정보처리 능력을 초과한 운전부하의 과부하로 인한 교통사고를 야기시키기도 한다. 특히 운전 중 핸드폰의 사용이나 동승자와의 지속적인 대화는 운전자의 인지처리 능력을 저하시키고 운전부하를 과부하로 만드는 경향이 있어 지양되어야 한다. 본 논문에서는 운전 중에 운전자 대화가 운전자에게 미치는 영향에 대하여 논의하고 운전자의 대화여부에 따른 운전부하 측정을 위해 필요한 운전자 대화 여부 판단 알고리즘에 대해 제안하고 구현된 시스템을 이용하여 운전부하를 측정하는 방법에 대해 논의 하고자 한다. Drivers need to process dynamic stimulus in real-time with full attention from Telematics environment. However, as the information technology revolution brings more and more data into vehicles, all of it competing for the drivers' attention, the development of automated assistance for driver information processing becomes increasingly important. Therefore, drivers' workload is very essential factor for safety driving in Telematics environment. In this paper, we have discussed driver distraction caused by driver conversation while driving and proposed voice activity detection algorithm for measuring driver workload. Finally, we show how voice activity detection system works for measuring driver workload.
윤대섭 ( Daesub Yoon ),황윤숙 ( Yoonsook Hwang ),김현숙 ( Hyunsuk Kim ),김경호 ( Kyungho Kim ) 한국정보처리학회 2010 한국정보처리학회 학술대회논문집 Vol.17 No.1
안전운전 지원 시스템 개발을 위해서 고려되어야 할 요소는 차량정보, 운전자정보, 외부 환경정보가 있다. 기존의 안전운전 지원 시스템 개발은 주로 차량의 종방향 제어, 횡방향 제어, 조향각 제어 등 차량으로부터 직접 추출한 주행정보를 이용하여 운전자의 안전유무를 평가하였다. 그러나 최근의 조사결과에 따르면 교통사고의 90%이상이 운전자 실수에 의해서 발생한다는 것을 알 수 있다[1]. 이와 관련하여 차량의 주행 정보뿐만 아니라 실제 운전자가 주행 중에 행하게 되는 행동정보 기반의 안전운전지원시스템 개발이 활발히 연구되어 지고 있다[2,3]. 본 논문에서는 운전자의 행동 정보를 이용한 안전운전 평가시스템의 설계 개념과 안전운전 평가시스템의 핵심 요소인 표준모델 구축 방법에 대해서 논의하고자 한다.
Hwang, Daesub,Jo, Seong Mu,Kim, Dong Young,Armel, Vanessa,MacFarlane, Douglas R.,Jang, Sung-Yeon American Chemical Society 2011 ACS APPLIED MATERIALS & INTERFACES Vol.3 No.5
<P>High-performance, room-temperature (RT), solid-state dye-sensitized solar cells (DSSCs) were fabricated using hierarchically structured TiO<SUB>2</SUB> nanofiber (HS-NF) electrodes and plastic crystal (PC)-based solid-state electrolytes. The electrospun HS-NF photoelectrodes possessed a unique morphology in which submicrometer-scale core fibers are interconnected and the nanorods are dendrited onto the fibers. This nanorod-in-nanofiber morphology yielded porosity at both the mesopore and macropore level. The macropores, steming from the interfiber space, afforded high pore volumes to facilitate the infiltration of the PC electrolytes, whereas the mesoporous nanorod dendrites offered high surface area for enhanced dye loading. The solid-state DSSCs using HS-NFs (DSSC-NF) demonstrated improved power conversion efficiency (PCE) compared to conventional TiO<SUB>2</SUB> nanoparticle (NP) based DSSCs (DSSC-NP). The improved performance (>2-fold) of the DSSC-NFs was due to the reduced internal series resistance (<I>R</I><SUB>s</SUB>) and the enhanced charge recombination lifetime (τ<SUB>r</SUB>) determined by electrochemical impedance spectroscopy and intensity modulated photocurrent/photovoltage spectroscopy. The easy penetration of the PC electrolytes into HS-NF layers via the macropores reduces <I>R</I><SUB>s</SUB> significantly, improving the fill factor (FF) of the resulting DSSC-NFs. The τ<SUB>r</SUB> difference between the DSSC-NF and DSSC-NP in the PC electrolytes was extraordinary (∼ 14 times) compared to reported results in conventional organic liquid electrolytes. The optimized PCE of DSSC-NF using the PC electrolytes was 6.54, 7.69, and 7.93% at the light intensity of 100, 50, and 30 mW cm<SUP>−2</SUP>, respectively, with increased charge collection efficiency (>40%). This is the best performing RT solid-state DSSC using a PC electrolyte. Considering the fact that most reported quasi-solid state or nonvolatile electrolytes require higher iodine contents for efficient ion transport, our HS-NFs are a promising morphology for such electrolytes that have limited ion mass transport.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/aamick/2011/aamick.2011.3.issue-5/am200092j/production/images/medium/am-2011-00092j_0006.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/am200092j'>ACS Electronic Supporting Info</A></P>