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송정영, 이기수 배재대학교 공학연구소 2017 공학논문집 Vol.19 No.1
음성인식을 위해서는 연속음성과 개인적 음성차이를 정확하게 알고 있어야 한다. 또한, 음성과 비음성 그리고 마찰음과 파열음에 대한 분류의 연구가 진행되고 있다. 이를 위한 정확한 음소인식방법은 아직 그 방법이 확립되어 있지 않다. 따라서 본 연구에서는, 한국어 특히 ‘훈민정음’분류를 사용하여 주파수 대역, Mel 대역 Mel Cepstrum 으로 한국어를 분석하고, 한국어 음소 특징을 추출한다. 분석과 검증을 통하여, 음소분류시스템을 구축하고, 한국어 음성인식을 위한 개인적 음성차이와 연속음성인식 방법에 적용 할 수 있을 것으로 판단된다. It is generally known that accurate classification is very necessary for both an individual word and continuous utterances in speech recognition. It is also commonly known that techniques are now being developed to classify the voiced and the unvoiced, also classifying the plosives and the fricatives. The method for accurate recognition of the phonemes isn't yet scientifically established. Therefore, in this study we analyze the Korean language, using the classification of "Hunminjeongeum" and contemporary phonetics, with the frequency band, Mel band and Mel Cepstrum, we extract notable features of the phonemes from Korean speech and segment speech by the unit of the phonemes to normalize them. Finally, through the analysis and verification, we intend to set up Phonemic classification System that will make us able to adapt it to both an individual word and continuous utterances.
Development of a Dynamic Geometry Environment to Collect Learning History Data
Mun, Kill-Sung,Han, Beom-Soo,Han, Kyung-Soo,Ahn, Jeong-Yong 한국데이터정보과학회 2007 한국데이터정보과학회지 Vol.18 No.2
As teachings that use the ICT are more popular, many studies on the dynamic geometry environment(DGE) are under way. An important factor emphasized in the studies is to practical use learning activities of learners. In this study, we first define the learning history data in DGE. Second we develop a prototype of the DGE that is able to collect and analyze the learning history data automatically. The environment enables not only to grasp leaning history but also to create and manage new learning objects.
철근 콘크리트 부재별 구성 철근별 작업 난이도와 소요시간에 관한 연구
안정필(An, Jeong Peal),김영길(Kim, Young Kill),이영도(Lee, Young Do),김광희(Kim, Gwang Hee) 한국전시산업융합연구원 2018 한국과학예술융합학회 Vol.35 No.-
철근 콘크리트 공사는 공사비의 65%가 인건비인 노동 집약적인 공종이다. 그 중 철근 공사는 기능인력의 고령화, 인건비 상승 및 타 공종에 비해 더딘 기술의 발전으로 인해 원가 상승 및 품질 저하라는 문제점이 발생하고 있다. 이에 본 연구는 철근 배근 공사의 작업 방식 개선점 도출을 위하여 부재별 구성 철근의 배근 작업시간 비율에 대하여 설문조사를 하였다. 그 결과 모두 구성 철근 중 무게 비중이 낮은 철근의 작업이 어렵고 작업소요시간이 길다고 답변하였다. 설문조사 결과의 타당성을 위해 현장 시공 사례를 바탕으로 설문조사의 결과와 비교하였다. 그 결과 부재의 구성 철근 중 무게 비중이 낮은 철근의 작업시간이 설문결과 보다 과다하게 소요되고 있으며 이를 개선한다면 철근 배근 공사의 효과적인 생산성이 향상이 이루어질 것으로 사료된다. 본 연구의 결과로 철근 공사 개선방안을 도출을 위한 참고자료로 사용될 것으로 기대된다. Reinforced concrete construction is a labor-intensive engineering type with 65% of construction costs as labor costs. Among them, the problem of raising costs and lowering quality is occurring due to aging of functional human resources, rise in personnel expenses, and development of technology slower than other engineering types. Therefore, in this research, we investigated the proportion of the reinforcing bar Placing work time of the absence specific reinforcing bars in order to improve and derive the work method of the reinforcing work. As a result, it was difficult to work the reinforcing bars with a low proportion of the weight of all the constituent reinforcing bars, and the work time was long. Due to the validity of the results of the questionnaire survey, it was compared with the results of the survey based on the onsite construction cases. As a result, the work time of the reinforcing bars, the proportion of the weight of the constituent reinforcement of the member is excessive, is over than the result of the questionnaire, and if this is improved, the effective productivity of the reinforcing work is improved, it is conceivable that. As a result of this research, it is expected that it will be used as a reference material for deriving the improvement plan of rebar work.
Nam Moo kill(南茂吉),Jeong Chang hyun(丁彰炫) 대한한의학원전학회 2005 대한한의학원전학회지 Vol.18 No.2
The purpose of this study is to explain the effect of Naegyeong on Lee Dong-yuan's medical thought. Lee is famous physician who studied the theory of spleen and stomach. His general idea of spleen and stomach could be thought as an result of study on Naegyeong. He distinguished between Eum disease and Yang disease and classified into internal injury and external affection. In the contents of Naegyeong, he took note of the four seasons' changes that are continued by the ascending and descending between heaven and earth, also he took note of the fact that movement of human body's organs is represent of ascending and descending. Human body is a site that a singular ascending and descending of Gi of the stomach.
김영호,지정현,박우길 한국균학회 2000 韓國菌學會誌 Vol.28 No.3
Substrate improvement, maturation period and method of pinheading promotion were investigated to establish the culture method of Lyopyllum ulmarium which could obtained high yield in the short culture period. Rice bran + wheat bran (10% + 10%) combination was selected from various additives, which showed vigorous growth of fruit body and high yield (133.8g/850㏄). Oyster shells powder substance increased yield to 155.5g per 850㏄ capacity bottle. The suitable method for pinheading promotion was to stand the bottle reversely. The number of fruit bodies per 850 cc capacity bottle in this method was 27.2 stipes and bunch formation was good. When the maturation period of mycelium culture was 15 days to 30 days, pinheading period was 10 days. But when the maturing mycelium was 30 to 45 days, yield per 850㏄ bottle was 148.2g.