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여름철 엠보싱 샌드위치 패널의 열적 성능에 관한 연구 -평판 샌드위치 패널과 비교를 중심으로-
손철수 대한설비공학회 2000 설비공학 논문집 Vol.12 No.10
The purpose of this research is to investigate the thermal performance of embossing surface sandwich panel and flat surface sandwich panel during the summer. To do this research, thermal performances in summer season at the six points of embossing surface sandwich panel and flat surface sandwich panel are investigated focusing on the temperature. Three kinds of embossing surface sandwich panel and one kind of flat surface sandwich panel are used for this research. At the same size of sandwich panel, the average temperature differences of flat surface sandwich panel between average temperature at the 0.5 mm below copper plate and average outside air temperature and surface temperature are higher than those of embossing surface sandwich panel. The average heat transfer rate of flat surface sandwich panel is higher than that of embossing surface sandwich panel. More study will be needed about the size of diameter and height of embossing, and materials of embossing surface sandwich panel.
손철수 啓明大學校 産業技術硏究所 1999 産業技術硏究所 論文報告集 Vol.22 No.2
The purpose of this research is to investigate the performance characteristics of sound absorption at the form of voided circular tube. To do this research, the method for field measurement of floor impact sound level was used following the Korea Standard F2810-1996. Two kinds of voided circular form are used for this research. The results are as follows; 1. The main factor to effect the performance characteristics of sound absorption is sound-absorbing materials at the voided circular tube. 2. The main factor to effect the difference of Sound Pressure Level is the form of circular tube in the concrete slab. 3. The form of circular tubes effects the performance characteristics of sound absorption at the circular tube. More study will be needed about the depth and distance of sound absorption materials, and the characteristics of sound absorption materials.
VISIBLE REAL AREA OF AVERAGE KOREAN ADULT
손철수,CheolSooSon 한국주거학회 1996 한국주거학회 논문집 Vol.7 No.1
이 연구의 목적은 표준 한국 성인을 구성하고 있는 3012개의 삼각형들의 각각의 실제면적과 임의의 좌표에서 볼 수 있는 각 삼각형의 실제 면적을 구하는 방법을 기술하고자 한다. 이 방법을 이용한 결과들은 표준 한국 성인의 투사 면적, 임의의 좌표에서 볼 수 있는 실제 투사면적, 형태 계수, 그리고 Mean Radiant Temperature 을 구하는데 꼭 필요한 자료들이다. 이 논문은 네단계로 구성되어 있는데, 그것들은 1) 시점의 Cartesian 좌표, 2) 실제 삼각형들의 면적 계산방법, 3) 가려진 삼각형들을 포함한 실제 삼각형들의 면적 계산방법, 그리고 4) 가려진 삼각형들을 제외한 보이는 삼각형들의 면적 계산방법이다. 이 방법을 이용한 임의의 좌표에서 볼 수 있는 표준 한국 성인의 실제 면적은, 시점의 좌표가 ALFA 15.0도, BETA 0.0도 일 경우가 가장 큰 면적(7.13817$cm^2$)을 볼 수 있고, 가장 적은 면적(2,326.6$cm^2$)은 ALFA 0.0도, BETA 90.0도 일 경우이다.
한국 어린이를 위한 복사 공간에서의 투사 면적에 관한 연구
손철수,최민권 한국주거학회 2000 한국주거학회 논문집 Vol.11 No.4
The purpose of this paper is to find a visible project area for an average six year old Korean child in radiant enclosures having standing pose. The results using this method will be necessary to find effective radiation area, effective radiation area factor, form factor, and mean radiant temperature for an average six years old Korean child consists of 3012 triangles. The methods to find visible project area of an average six years old Korean at arbitrary view point will be presented. The visible project area for Korean child is needed for evaluating thermal comfort for six years old Korean child. The biggest visible project area of an average six years old Korean is $\textrm{cm}^2$$2.061.0\textrm{cm}^2$ at the view point of alfa 0.0 degree and beta 0.0 degree, and the smallest visible real area of an average six years old Korean is $567.1\textrm{cm}^2$ at the view point of alfa 15.0 degree and beta 90.0 degree.
공동주택에서 중공 슬래브 바닥의 차음 특성에 관한 연구
손철수 한국주거학회 2000 한국주거학회 논문집 Vol.11 No.1
The purpose of the resent research is to investigate the characteristics of sound insulation at the circular voided concrete slab in the multi-housing. In order to do this research, the method for field measurement of floor impact sound level was used following the Korea Standard F2810-1996. For the multi-housing, three kinds of circular voided concrete slabs are used to measure the characteristics of sound insulation.The results are as follows; 1.The main factor affecting the characteristics of sound insulation at the circular voided concrete slab in the multi-housing is sound-absorbing materials in the circular tube. 2. The main factor to effect the difference of sound pressure level is circular tube in the concrete slab. 3. The forms of circular tubes effect the characteristics of sound insulation at the circular tube. 4. Sound Pressure Level resulting from the piping direction of circular tubes in little different to octave band level.More study will be needed about the depth and distance of sound insulation materials, and the components of sound insulation materials for the multi-housing.