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가정용 가스보일러 곡관 배기통의 길이 변화에 따른 CO농도 고찰
임사환(Leem Sa-Hwan),허용정(Huh, Yong-Jeong),마성준(Ma, Sung-Jun) 한국산학기술학회 2007 한국산학기술학회논문지 Vol.8 No.5
21C 산업의 발전과 더불어 급증하고 있는 가스산업은 사용의 편리성과 위험성을 공존하고 있다. 특히 근대 산업혁명 이후 에너지 및 환경에 대한 문제가 두각을 나타내게 되었다. 따라서 환경친화적인 에너지원으로서 가스의 수요가 날로 급증하고 있다. 가스의 수요와 더불어 가스보일러의 설치 및 사용이 늘어나면서 보일러 폐가스(CO)에 의한 인명피해가 해마다 증가하고 있다. 따라서 본 논문의 목적은 보일러 곡관 배기통의 길이에 따른 CO농도의 고찰을 통하여 인체에 대한 위해성을 파악코자 함이다. CO의 허용농도인 50ppm에 해당하는 길이는 3곡관 1m에서 3분이 경과할 경우이다 또한,5m에서는 5분 경과부터 CO농도가 허용농도를 초과하는 것으로 나타났다. 특이하게 2m부터 4m까지는 CO농도가 허용농도 이하였다. As the industry of 21C has been developed, the gas industry has grown and it has not only the convenience but also the riskiness for using. Especially, the energy and environment problems have been getting serious after the modem industry revolution. Therefore, the demand of gas as an eco-friendly energy source is getting increased. With the demand of gas, the installation and use of gas boiler is also increased, so human life injury by the waste gas(CO) of boiler goes on increasing every year. Therefore, we want to find out the harm to human body through the study on the concentration of eo by the length of the curved exhaust tube of boiler. The allowable concentration of CO is 50ppm. The length of the one-meter-three-curved tube after three minutes is applicable to 50ppm of the threshold limit values of CO. Also, five meters exceed the threshold limit values of CO after five minutes. Strangely, the concentration of CO is under the threshold limit values from two to four meters.
허용도(Her Young Do),백두권(Baik Doo Kwon),황종선(Hwang Jong Sun) 한국정보과학회 1988 한국정보과학회 학술발표논문집 Vol.15 No.1
개인용 컴퓨터의 경우 영어를 알지 못하는 저학년층의 사용자들이 늘어감에 따라 한글의 필요성이 절실히 요구되고 있다. 아울러 컴퓨터를 이용하는 중소기업에서도 간단한 보고서를 작성함에 있어서 한글의 처리가 필요하게 되었으며 학교나 가정에서도 저학년 사용자들의 교육용으로서 또한 한글의 필요성은 상당한 비중을 차지하게 되었다. 본 연구에서는 한글의 특성을 고려하여 한글 프로그래밍 언어의 구현단계를 체계적으로 분류하였으며, 한글 프로그래밍 언어(기본 언어)를 설계하였다.
문화콘텐츠시대의 영상아카이브를 위한 영상이미지 전문인력 양성의 필요성에 대한 연구
허용무 ( Yong Moo Heo ) 한국사진학회 2015 AURA Vol.0 No.35
As cultural contents have been recognized as a strategic industry to strengthen national competitiveness, it is being actively promoted to materialize cultural resources by using the traditional culture of each country, nation or areas as a method to ensure the competitive contents. Among them, as a new concept such as ‘cultural archetype’ or ‘unique culture’ is being highlighted in cultural industries, the importance of archives has been stressed to materialize the culture. In addition, with the development of digital technology and changes in the recognition of the importance of video images, the archive is mainly dominated by video images which take the important position. It means that those who have specialty related to video images are not only involved in records of video archive as materials of cultural resources, but their opinions are also needed to examine, analyze, classify and interpret video image materials in the future. At national levels, the government has established the national archives and legislates for the archives of central and local governments with large-scale supports for cultural resources because humanity-centered performance has been considered important. It is based on the awareness in which the success of cultural content industries depends on the variety of materials. It is important to examine the needs for training professional personnel in video images for the video archives in a big flow of discovery of materials and archive of cultural resources through traditional culture and cultural archetype in the cultural content industry as a national strategic industry.
허용호 한국기호학회 2005 기호학연구 Vol.18 No.-
This study is to investigate the whole life of puppet performing object which is from the molding of puppet to the treatment of puppet after performance. In other words, this study is to examine the whole process of puppet performance. And I try to systematize the whole process of puppet performance, ratiocinate the cultural tradition which make a system possible and human desire which is located in the depth of cultural tradition. The result of this study is to show in a graphic form as follows. This study which abstract in this way is meaningful in view of confirmation of traditional puppet performance's diverse aspects and cultural tradition. Furthermore, a fruit of this study is systematize traditional puppet performance's diverse aspects. The semiotics make this meaningful and fruit possible. Semiotics is not only to make in to a systematize, but also to make a new perspective possible.
허용석 한국상품학회 2015 商品學硏究 Vol.33 No.5
In order to increase the effectiveness of technology R&D investment, it is essential for Korean small and medium sized-enterprises (SMEs) in the information technology (IT) sector to have good knowledge about the impacts of their internal and external technology R&D investments on their success in technology development. Accordingly, this research empirically analyzed the respective impacts of Korean IT SMEs' internal and external technology R&D investments on their success in technology development and compared their effect sizes. The statistical analysis results of this study by using the Cobb-Douglas type innovation production function and 310 samples collected from Korean IT SMEs have presented the following findings which prior studies on SMEs' R&D investment have not shed enough light on so far. First, both internal and external technology R&D investments have positive impacts on Korean IT SMEs' success in technology development. Second, The effect of the internal technology R&D investment is about twice larger than the effect of the external technology R&D investment on Korean IT SMEs' success in technology development. Third, Korean IT SMEs' Cobb-Douglas type innovation production function shows the decreasing return to scale. Based on these findings, this research provides new meaningful academic and practical implications for scholars and CEOs in Korean IT SMEs.