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크락사와 APG를 이용한 유류오염토양중의 유분제거에 관한 연구
권기생(K. S. Kwon),정헤종(H. J. Jeong),김용복(Y. B. Kim),유신주(Y. S. Ju),권강민(K. M. Kwon) 한국해양환경·에너지학회 2007 한국해양환경·에너지학회 학술대회논문집 Vol.2007 No.-
By the industrial work and military operation, some facilities discharged or spilled amount of waste oil or oil mixtures due to leakage of many kinds of oil. The soil in these facilities was seriously polluted by waste oil or oil mixtures and We, urgently need the research for the cleaning up and restoring from the polluted soil by the way of environment-friendly and economical methods In this study, from the test results by crasher and surfactant(APG) in the fields operation experiment, we got good results of the removal ratio of THP from polluted clay soil and sand, these methods will get better result as the economical and environment-friendly treatment methods. As results of this study, found out that amount of polluted oily soil and sand will be clean at once time in the limit of acts of environments.
유태종,김성순,권봉기 대한상하수도학회 1989 상하수도학회지 Vol.3 No.1
The purpose of this study is to research the effect of anoxic retention time on nitrogen and phosphorus removal by Anaerobic-Anoxic-Oxic process. The anoxic retention times were 0.50hr, 0.75hr, 1.00hr, and 1.25hr, respectively. And the retention times of Anaerobic and Oxic basin were 1.5hr and 1.13hr. The substrate used in experiments was synthetic wastewater. COD concentration was 400㎎/ℓ and influent flow rate of substrate was 24.0ℓ/day. The following conclusions were obtained from the results of this study. 1. The rate of phosphorus removal was high when influent phosphorus concentration was 10㎎/ℓ, but the rate was declined when influent phosphorus was more than 15㎎/ℓ, But, when it was considered as the amount of phosphorus removal per hour(㎎/hr), the removal amount increased as influent phosphorus concentration increased. 2. As anoxic retention time increased, phosphorus removal increased a little, but anoxic retention time couldn't have a great effect on phosphorus removal. 3. The amount of phosphorus removal per MLVSS was almost constant when anoxic retention time was more than 0.75hr at influent phosphorus concentration 5, 15, 20㎎/ℓ, when anoxic retention time was more than 1.00hr at influent phosphorus concentration 10㎎/ℓ. Therefore it is suitable that anoxic retention time is 0.75∼1.00hr in process. 4. The amount of nitrogen removal per MLVSS in anoxic basin and the system increased as Anoxic retention time and influent nitrogen increased. 5. The amount of nitrogen removal per MLVSS in basin was almost constant when anoxic retention time was the same at influent nitrogen concentration 20 and 30㎎/ℓ. And the amount of nitrogen removal per MLVSS was almost constant when anoxic retention time was more than 0.75hr at each influent nitrogen concentration.
유기제약 분과학회 Knoevenagel Condensation에 관한 연구
권인선,조금희,은미현,이숙연,유금옥 이화여자대학교약학회 1989 梨花藥學硏究 Vol.- No.28
2-Amino 3-cyano4,5-dimethyl furane(Ⅰ) condensed from acetoin of α-hydroxyketon derivatives and the malondinitril, and then hydrolyzed to 2-amino carbamyl 4,5-dimethyl furane(Ⅱ) in poly phosphoric acid. In the same reaction condensed 1-N-phenyl 2-amino 3-cyano 4,5-dimethyl pyrrole(Ⅵ) condensed from 3-N-phenyl amino 2-butanone(Ⅲ) of α-aminoketone derivatives and malondintrile, and then hydrolyzed to 1-N-phenyl 2-amino 3-carbamyl 4,5-dimethyl pyrrole(Ⅴ)
Knoevenagel Condensation에 관한 연구
권인선,조금희,은미현,이숙연,유금옥 이화여자대학교 약학회 1989 梨花藥學會誌 Vol.- No.28
2-Amino 3-cyano4,5-dimethyl furane(Ⅰ) condensed from acetoin of α-hydroxyketon derivatives and the malondinitril, and then hydrolyzed to 2-amino carbamyl 4,5-dimethyl furane(Ⅱ) in poly phosphoric acid. In the same reaction condensed 1-N-phenyl 2-amino 3-cyano 4,5-dimethyl pyrrole(Ⅵ) condensed from 3-N-phenyl amino 2-butanone(Ⅲ) of α-aminoketone derivatives and malondintrile, and then hydrolyzed to 1-N-phenyl 2-amino 3-carbamyl 4,5-dimethyl pyrrole(Ⅴ)
선진국의 유기농업 현황과 시사점 : 독일·일본을 중심으로
권광식,유춘권 농업협동조합중앙회 2000 농협조사월보 Vol.513 No.-
본 고는 유기농업의 국제적인 추세와 유기농업이 발전하고 있는 독일과 일본의 현황을 살펴봄으로써 국내 유기농업의 발전방향을 모색해 보는데 목적이 있다. 독일과 일본의 유기농업은 우리에게 다음과 같은 시사점을 준다. 첫째, Codex 유기식품 국제기준이 사실상 확정됨에 따라 우리나라도 유기농업관련 제도를 국제기준에 맞게 재정비하고, 국제기준과 국내여건을 감안한 유기농업 육성 프로그램을 적극 개발할 필요가 있다. 둘째, 독일은 이미 10여 년전부터 유기농가에 보조금을 지급하여 유기농가의 경영안 정을 도모하고 있다. 우리나라의 경우도 1999년부터 친환경농업 직접지불제를 실시하고 있으나, 아직 상수원보호구역 등 환경규제지역에 한정되어 았다. 유기농업의 확산을 위해서는 친환경농업 직접지불제를 전국적으로 확대 실시하는 것이 요청된다. 셋째, 독일과 일본의 유기농업단체들은 소비자단체와의 제휴, 택배, 가맹점 확보 등을 통해 유기농산물의 판로를 확충해 나가고 있다. 아직 유기농산물의 판로가 정착되어 있지 않은 우리나라의 경우 생산자단체와 소비자단체의 제휴, 택배, 백화점·슈퍼마켓 등과의 제휴 등을 통해 다양한 유기농산물 유통 경로를 개척해 나가는 것이 적극 요청된다. 넷째, 독일과 일본의 유기농업단체들은 유기농산물에 대한 소비자틀의 인식 제고와 신뢰 확보를 위해 적극적인 홍보는 물론 엄격한 품질관리를 하고 있다. 우리나라는 현재 정부가 유기농산물 품질관리를 하고 있는데, 품질관리 체계가 품질인증제, 표시 신고제로 이원화되어 있어 소비자의 흔란을 초래한다는 지적이 많다 따라서 이를 일원화할 필요가 있으며, 정부의 품질관리 내용을 소비자들에게 적극 홍보하여 이에 대한 소비자들의 인식을 제고시킬 필요가 있다.
Matrix Pencil 방법에 의한 비행기 모형의 ISAR 영상화
유지희,권경일,이용희 한국전자파학회 2001 한국전자파학회논문지 Vol.12 No.2
이 논문에서는 MP(Matrix Pencil) 방법을 이용한 ISAR(Inverse Synthetic Aperture Radar) 영상에 대한 실험적 연구결과를 기술하였다. 측정은 CR(Compact Range) RCS 측정시설을 이용하였으며 두 가지 종류의 표적이 사용되었다. 첫 번째 표적은 MP의 성능을 확인하기 위하여 길이가 짧고 반경이 작은 원통형 표적이고 두 번째 표적은 실제 비행기 형상과 같이 복잡한 구조를 가진 무인항공기 모형이다. ISAR 영상을 얻기 위하여 MP와 FFT(Fast Fouier Transform)를 이용하였으며 실험결과를 비교해 보면 MP 방법을 사용하는 것이 기존의 FFT를 사용하는 것보다 더 좋은 영상을 얻을 수 있다는 것을 입증하였다. This paper presents a experimental study of Inverse Synthetic Aperture Radar(ISAR) imaging using Matrix Pencil(MP) method. A series of measurement for two types of target model was done in a Compact Range(CR)facility. The first target is a set of distributed slim cylinders to get a ISAR image of point-like scatterers. The second is UAV model representing a complex real target. The results show that ISAR images by MP method are better than by conventional FFT method under the realistic measurement conditions.
유지혜 ( Ji-hye Yu ),이윤미 ( Yun-mi Lee ),강재준 ( Jae-jun Gang ),권기형 ( Gi-hyung Kwon ) 한국미용예술경영학회 2014 미용예술경영연구 Vol.8 No.2
Along with the civilization advancement there are increased human desire for beauty and to fulfil self-satisfaction. This have significant meaning in hair design as a art and creative attempts are made. Various color became popular and as all colors are allowed commercially it show rapid change and color contrast, gradation and indentation have accomplished three-dimensional effect and harmony and dynamic and intense design was sought. This have led the beauty industry's professional segmentation and advancement and increase in professional beauty competitions. Areas like Creative or Hair by night in National or International beauty competitions are not a practical area applied in work such as cut or perm, it is a beauty area that creates design factors based on sense of art and ability to create. Therefore this paper aims to study the changes and development of Creative or Hair by night from the 1900's to date by studying relevant national and international documents, Internet sources and photographic evidences. Through this study Creative and Hair by night's development can be actualized and could confirm advancement of originality and creativity. Further I expect more in-dept research could be carried ou for more creative design