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윤영훈,변무룡,김응남,백종원,양인태 江原大學校 産業技術硏究所 1991 産業技術硏究 Vol.11 No.-
This study is concerned with the effective of aspects of utility management and land management, the accuracy of data, the structure of cross reference file of data and the perpetial preservation of data management through a drawing of computer and database, when land and utility information of the application of Land Information System is made on the computer. It will be shown that the present system of land management is inadequate in various contexts and occure in difficult problems of use, as presented in this paper, computer alternative to these difficulties is efficiently managed and conveniently used land utility management. The ultimate goal is provided the necessary information of various areas as the presented land management operation is builted a drawing of computer and database construction through the computer.
楊寅台,崔勝弼,邊茂龍 江原大學校 附設 環境硏究所 1991 環境硏究 Vol.8 No.-
This study explains the basic principle of array algebra as a mathematical manipulation of the least squares estimation. Array algebra enables linear algebra to handle multi-dimensional arrays, but has the restriction of working with some form of gridded data. Digital elevation modeling, photogrammetric and satellite image processing are a few of the application to which array algebra is well suited, because the data si often collected in grid form. This study compares array algebra to the standard least squares estimation. With the use of experimental data, investigations of computational efficiency, stability, and storage requirements were performed. It was found that in all cases array algebra was superior to least squares. Weighting of array algebra and the use of the sequential formulation of the normal equations are also discussed. The sequential technique can be used with array algebra when extra observations are to be incorporated that are not part of the grid. This technique can also be used when there is missing grid information, Array algebra has been shown to be of great benefit when large numbers of parameters are to be computed efficiently.
태양열을 이용한 생물학적 질소 처리 장치에 대한 현장 실험 연구
정모(Chung Mo),변무룡(Byun Moo-Ryong),이동원(Lee Dong-Won),윤응상(Yoon Eung-Sang),김정배(Kim Jeong Bae) 한국태양에너지학회 2006 한국태양에너지학회 학술대회논문집 Vol.- No.-
A low-temperature solar thermal system assisting a biological nitrogen treatment reservoir was designed and field-tested. A large tank whose temperature was maintained at about 25-30 ℃ to enhance the performance of a biological nitrogen treatment process was heated by an array of flat plate solar collectors. Test results revealed that the overall collector efficiency was above 50% for the most cases tested. This high efficiency was possible owing to the relatively low collector temperature that can be traced back to the reservoir temperature. A substantial enhancement in nitrogen treatment was observed as a result of maintaining the reservoir temperature higher.
정모(Chung, Mo),이동원(Lee, Dong-Won),김정배(Kim, Jeong-Bae),윤응상(Yoon, Eung-Sang),변무룡(Byun, Moo-Ryong),변무원(Byun, Moon-Won) 한국신재생에너지학회 2006 한국신재생에너지학회 학술대회논문집 Vol.2006 No.06
A low-temperature solar thermal system assisting a biological nitrogen treatment reservoir was designed and field-tested. A large tank whose temperature was maintained at about 25{sim}30?C to enhance the performance of a biological nitrogen treatment process was heated by an array of flat plate solar collectors. Test results revealed that the overall collector efficiency was above 50% for the most cases tested. This high efficiency was possible owing to the relatively low collector temperature that can be traced back to the reservoir temperature. A substantial enhancement in nitrogen treatment was observed as a result of maintaining the reservoir temperature higher.