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문인석,홍원기,류정탁,Moon, Inseok,Hong, Won-Kee,Ryu, Juang-Tak 대한임베디드공학회 2011 대한임베디드공학회논문지 Vol.6 No.5
Intelligent robots are widely needed in various areas of industry from extremely dangerous environments to service tasks. For autonomous mobile robots, it is significant to move itself safely to a destination point, recognizing its surroundings. Advances in sensor technology and its applications are achieved in order to develop an intelligent robot. In this paper, a mobile robot with a path-finding algorithm is presented. The path-finding algorithm is the one that does not only find a path to designated destination and also recognizes obstacles on the way, calculating its distance. 10 ultrasonic sensor are mounted on the front and rear of the mobile robot to figure out its position. Specular reflection and wide viewing angle, which are inherent characteristics of ultrasonic waves, cause errors in measuring distance.
무선 통신과 영상인식을 활용한 지능형 자율주행 자동차 개발에 관한 연구
문인석(In-Seok Moon),정태광(Tae-Kwang Jeong),홍원기(Wonkee Hong) 한국산업정보학회 2009 한국산업정보학회 학술대회논문집 Vol.2009 No.5
논문은 지능형 자동차 개발을 위한 마이크로마우스를 활용한 차량-도로 간 통신, 모터제어, 영상처리와 물체감지 센서들을 활용한 도로 상황정보 인식 시스템 등을 활용하여 지능형 자동차의 운행을 구현하고 테스트 할 수 있다. 이를 활용하여 검증된 기술들을 실제 차량에 적용하기 위해서 다양한 실험과 테스트를 실시한다. 또한 누구나 쉽게 간단한 마이크로 컨트롤러를 통한 지능형 자동차를 위한 다양한 아이디어를 접목할 수 있도록 시스템을 설계한다. 이를 활용하여 영상처리를 통한 차선인식과, 직전 좌회전 및 도로의 교통표시마크를 읽어 들여 차체를 컨트롤하고 차량-도로간 통신을 이용해서 신호등의 정보를 입력받아 교차로를 안전하게 통과하게 된다. 또한 앞 차량을 인식하여 자동으로 속도조절과 차량 간 거리를 유지하는 시스템을 구현한다.
문인석(Moon, Inseok),김의준(Kim, Euijune),이유진(Yi, Yoojin) 한국지역개발학회 2017 韓國地域開發學會誌 Vol.29 No.1
This paper develops a framework for economic analysis of the investment in High-Speed Rail (HSR) line connecting Seoul and Gangneung in Korea. Our research framework is composed of a Computable General Equilibrium (CGE) model integrated with a micro-simulation of transportation network. The change of accessibility index due to the investment in the HSR line is calculated using network analysis approach, and the impact of transportation accessibility on local value-added is analyzed by estimating a production function. The micro-simulation of transportation network is integrated into a production module of the CGE model to analyze macroeconomic effect of the changes in accessibility index. The results indicate that the GDP increases by 2.86%, and the increase in value-added is greatest among service industries (3.11%), followed by tourism industries (2.86%). This implies that supportive policies to develop service industries including tourism sectors along with the HSR construction would contribute to economic growth in more balanced way.
문인석(In Seok Moon),김진(Jin Kim),심대보(Dae Bo Shim),이원상(Won-Sang Lee) 대한두개저학회 2008 대한두개저학회지 Vol.3 No.2
Intralabyrinthine schwannoma is rare and vestibular schwannoma extended into intralabyrinthine area is rarer. Until now, there have been no reports of schwannomas extending simultaneously in the inner ear, middle ear, and jugular foramen. We report the first experience of a vestibular schwannoma simultaneously involving the IAC, cochlea, vestibule, middle ear, external ear, and jugular foramen which removed via modified surgical technique called as‘ Rope-skipping’
나지나(Gina Na),문인석(In Seok Moon) 대한두개저학회 2019 대한두개저학회지 Vol.14 No.1
The start of neurotologic surgery using endoscope dates back to the 1960s, but there has been much debates as to whether or not to replace operative microscope. Therefore, endoscope has been mainly used for diagnostic purposes for a while. Recently, with the increasing interest in minimally invasive surgery, various surgical procedures have been tried in the field of neurotology and their success has been reported. In this review, cases of vestibular schwannoma, facial nerve decompression, glomus tumor, petrous apex cholesterol granuloma, venous malformations of the facial nerve, and perilymph fistula are summarized.
배성훈(Seong Hoon Bae),문인석(In Seok Moon) 대한두개저학회 2012 대한두개저학회지 Vol.7 No.1
We report a case of an arteriovenous malformation within the internal auditory meatus and cerebellopontine angle. A 46-year-old woman presented with a five-year history of unilateral hearing loss and recent aggravation. Initially she misdiagnosed as sudden hearing loss and treated with systemic steroid. 6 months later, her hearing worsened and vertigo was developed. Magnetic resonance imaging and magnetic resonance angiography demonstrated a lesion consisting of multiple high flow vessels within the left internal auditory canal and cerebellopontine angle. Patient was recommended to receive transarterial embolisation, but refused and was just followed up. Arteriovenous malformations of the internal auditory canal and cerebellopontine angle are exceedingly rare. It is important that a pre-treatment diagnosis is made, as the management of arteriovenous malformation differs from that of other, more common lesions at this site.
유양동 삭개술 없이 내시경적 갑각하 접근법을 통한 청신경초종 제거와 인공와우 이식을 동시에 시행하여 청력을 회복한 증례
김정기(Jungghi Kim),문인석(In Seok Moon) 대한두개저학회 2021 대한두개저학회지 Vol.16 No.2
Various approaches have been applied to surgery of vestibular schwannomas (VSs) and preservation of hearing, when possible, has been one of important goals of VS surgery. In recent years, several attempts have been made to restore damaged hearing with implants, going beyond simple preservation of hearing, in addition to tumor removal. We present a case of a 40-year-old male who had a 7-mm intracanalicular VS with profound ipsilateral hearing loss. The patient underwent nonmastoidectomy endoscopic transcanal infrapromontorial tumor removal with concurrent cochlear implantation on the ipsilateral side, without any complication during or after surgery. Postoperative pure-tone audiometry showed notable improvement to 21 dB HL. With this approach, the infrapromontorial corridor provided space to remove the tumor and most of the normal cochlear structure was preserved, allowing stable insertion of a cochlear implant electrode. This case suggests that nonmastoidectomy infrapromontorial approach and concurrent cochlear implantation can achieve both minimally invasive tumor removal and restoration of hearing simultaneously.