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코발트 염의 첨가가 고무와 황동이 피복된 강선간의 접착에 미치는 영향
김민호,서곤,전경수,오세철,노인기 한국화학공학회 1990 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.28 No.1
코발트 염의 첨가량을 달리하여 배합된 고무의 물성과 이 고무와 황동이 피복된 강선간의 접착특성을 조사하였다. 코발트 염의 첨가가 배합고무의 물성에 미치는 영향은 크지 않았으나, 접착특성은 코발트 염의 첨가량과 열화처리에 따라 크게 달라졌다. 코발트 염의 함량이 적은 고무에서는 pullout force와 고무의 부착 정도로 나타내어지는 접착특성이 향상되었으나, 함량이 1.5phr 이상인 고무에서는 열화 후 접착특성이 크게 나빠졌다. 코발트 염의 과량 첨가에 따른 접착특성의 저하를 접착층의 성장과 관련지어 설명하였다. The effect of cobalt salt in rubber compound on the physical properties of the rubber compound and the adhesion properties between the rubber compound and brass-coated steel cord was studied. Although the change in the physical properties of the rubber compound with the addition of cobalt salt was small, the adhesion properties were changed significantly with the loading level of cobalt salt and aging treatments. Pullout force and rubber coverage of the steel cord were enhanced in the rubber compound with low loading of cobalt salt. When the loading level of cobalt salt was higher than 1.5 phr, the adhesion was severely deteriorated after aging treatments. The easy failure in the adhesion of the sample with high loading of cobalt salt was explained in terms of the growth of the interfacial layer.
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김민호,강효순 한국게임학회 2016 한국게임학회 논문지 Vol.16 No.1
청각장애인의 시청각 매체인 TV이용에 있어서 문제가 되는 것은 소리를 들을 수 없기 때문 에 프로그램 내용의 이해도가 현저히 떨어진다는 것이다. 그 이해도를 증대시켜 접근의 편의성 을 높일 수 있는 연구의 필요성을 가지게 된다. 본 논문에서는 자막방송에 대해 자막을 자동으로 생성하는 방법을 제안하였다. The hearing impaired have a substantially lower comprehension of audiovisual television programs due to their inability to hear sounds. Therefore, research was needed to improve their understanding by making these programs more accessible. This thesis is based on a proposal to find a solution for automating closed captions.
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안전기준의 검색과 분석을 위한 기계독해 기반 질의응답 시스템
김민호,조상현,박덕근,권혁철 한국멀티미디어학회 2020 멀티미디어학회논문지 Vol.23 No.2
If various unreasonable safety standards are preemptively and effectively readjusted, the risk of accidents can be reduced. In this paper, we proposed a machine reading comprehension-based safety standard Q&A system to secure supporting technology for effective search and analysis of safety standards for integrated and systematic management of safety standards. The proposed model finds documents related to safety standard questions in the various laws and regulations, and then divides these documents into provisions. Only those provisions that are likely to contain the answer to the question are selected, and then the BERT-based machine reading comprehension model is used to find answers to questions related to safety standards. When the proposed safety standard Q&A system is applied to KorQuAD dataset, the performance of EM 40.42% and F1 55.34% are shown.
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김민호,유근배,조봉환 한국공간정보학회 2002 한국공간정보학회지 Vol.10 No.2
인간의 삶에 많은 영향을 끼치고 있는 해빈, 해안사구 등과 같은 해안지형은 역동적으로 변화하고 있고, 이에 대한 연구가 진행되고 있다. 해안지형의 변화량을 측정하기 위해 기존에는 측량기기에 의한 수준측량방법을 주로 이용해왔다. 이 연구에서는 기존에 고려되지 않았던 근거리 사진측량기법으로 해안사구 단면에 대한 고도값을 계산하였다. 즉 번들조정과 공선조건식의 역변환을 통해 비측량용 디지털 사진기로 촬영된 지상사진의 입체쌍으로부터 미지점의 고도값을 계산하였다. 6개의 기준점을 이용하여 번들조정을 수행하였고, 미지점 고도갈의 계산값과 실측갈을 비교한 결과 10cm 이내의 오차가 나타났다. 일반적으로 해안사구 지형은 모래질의 연약지반으로 실측시 수준척이 견고하게 고정되지 않고, 좁은 지역을 측량할 경우 인접지점에 교란현상을 발생시켜 측정오차가 크게 나타날 수 있다. 해안사구의 고도값을 측정하는 연구에서 디지털 사진측량방법은 기존의 수준측량이 갖는 문제점을 극복하면서 이를 대체할 수 있을 것이다. Coastal landforms such as sand beach and coastal sand dune are changing dynamically, and the research about them is being conducted. Conventionally the leveling method has been applied to measuring heights of dynamic morphological surface in coastal landforms. We applied the photograrmmetric method which was not considered to measure the heights on coastal sand dune’s profile to calculating the heights of coastal sand dune; that is, the heights of unknown points on coastal sand dune’s profile was reckoned from the digital photographs’stereo pairs through bundle adjustment and backward transform of collinearity condition equation. we used six GCPs to perform bundle adjustment. After backward transform the error of heights between surveyed value and computed value was estimated around 10cm. In general, the pole is not adamantly fixed on the surface of coastal sand dune because of its softness, and then the disturbance of coastal sand dune adjoining surveyed area can be made in small area. Digital photogrammetry can solve the problem which conventional leveling method has, and be replaced it.
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김민호,송현민,김정래,Kim, Min-Ho,Song, Hyun-Min,Kim, Jeong-Rae 항공우주시스템공학회 2010 항공우주시스템공학회지 Vol.4 No.3
GPS sensors provide accurate position and velocity of moving vehicles. However, GPS is weak at intermittent signal loss and large position error. Combination with INS improves the GPS position accuracy during the GPS signal loss. In this paper, a fusion filter using GPS and INS is developed and its perfomance is analyzed with RC car and RC airplane experiments.
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김민호,우서휘,소병찬,심광보,남옥현 한양대학교 세라믹연구소 2016 Journal of Ceramic Processing Research Vol.17 No.10
We report on the improvement of the structural and optical properties of m-plane GaN layers on m-plane sapphire viaepitaxial lateral overgrowth (ELO) using hydride vapor phase epitaxy. The planar m-plane GaN was compared to ELO mplaneGaN with stripes patterned along the [1120] and [0001], respectively. The ELO m-plane GaN samples showed narrowx-ray rocking curves and more improved cathodoluminescence (CL) images compared with those of the planar m-plane GaN. The density of threading dislocations (TDs) and basal-plane stacking faults (BSFs) was decreased in the ELO m-plane GaN,which was confirmed by transmission electron microscopy (TEM) and Williamson - Hall (W-H) plot analysis.
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상반적 관계를 통한 블레익의 문화비평--자유라는 문화적 기표에 대한 계급적 차이
김민호 19세기영어권문학회 2005 19세기 영어권 문학 Vol.9 No.1
When the French revolution brought to England the debate on human liberty between the prorevolutionary civil class and the antirevolutuionary aristocratic class, William Blake put the conflicting ideas on human liberty into the relation of the “Contraries.” The conflicting ideas in Blake can not be synthesized into an imperative discourse, but shown as equal discourses. The prorevolutionary discourse criticizes the antirevolutionary discourse. At the same time it is criticized by the antirevolutionary discourse. The prorevolutionary discourse and the antirevolutionary discourse are on the process of striving against each other. This is Blake's strategy to seek the voices of the sociocultural nonstream groups. This paper aims at tracing the process which hardly seems to reach any conclusion. Looking into the process will make a reader to find that there is no authorial voice which would come to a conclusion. A reader himself has to figure out the meanings of the conflicting discourses. He would know the limitations in both of the discourses. In fact, both of the discourses reflect only the interests of the civil class and the aristocratic class. Due to these limitations, a reader would view the discourses of both classes from a whole society and feel what exists beyond the discourses which are advocated by both classes.
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