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Metal Oxide Sensor Array를 이용한 사과와 귤의 신선도 분석
임향주,한도수,조성동,김기윤 조선대학교 기초과학연구소 2000 自然科學硏究 Vol.23 No.1
The Electronic Nose has been designed to provide objective and reproducible aroma discrimination on a wide variety to human nose. The sensor array in combination with sophisticated chemometrics and artificial neural network software provides the output displaying the closeness of difference in aroma patterns of different samples. As an application the system has been used to discriminate of the fresh and decomposing apples and oranges. The discrimination has been successfully demonstrated.
운동이 일부 남녀 대학생들의 혈청과 뇨중 칼슘, 마그네슘 및 아연함량에 미치는 영향
임상선,김형락,차연수,안창범,정복미 여수대학교 1997 論文集 Vol.11 No.2
This study investigated the effect of regular exercise on mineral status in college students. Mineral status for calcium, magnesium, and zinc was evaluated prior to beginning the study and again after 35 days of exercise training for 30 minutes per day. The results obtained were summarized as follows: 1) Serum concentrations of calcium and magnesium were decreased in female subjects but were not affected in males. 2) Urinary excretion of calcium and magnesium was significantly increased in male subjects but unchanged in females. 3) Serum and urinary zinc concentrations were not affected in either male or female subjects. These results suggest that regular exercise may have different effect on calcium and magnesium in humans, depending on gender.
2,4-D 處理가 'Harcot' 살구와 '美白' 복숭아의 果實 成熟과 品質에 미치는 影響
윤철구,김영호,임상철,김학현,이철희,최관순,김선규 충북대학교 농업과학기술연구소 1999 農業科學硏究 Vol.16 No.-
Effect of 2,4- D application on the fruit maturity and quality of 'Harcot' apricot and 'Mibaek' peach was examined. Leaf area of 'Harcot' apricot was not affected by 2,4-D while that of 'Mibaek' peach was increased by 35mg · L-1 2,4-D. Application of 2,4-D at 35mgㆍL-1 increased the fruit weight of both species, and that of 'Harcot' was doubled. Soluble solids content of 'Harcot' was decreased by 2,4-D while that of 'Mibaek' was not affected. Fruit maturity of 'Harcot' and 'Mibaek' was enhanced for respective 4 and 1 day by 2,4-D application. Percent fruit cracking of 'Harcot' apricot was decreased by 35mg · L-1 2,4-D.
칼슘제 수관살포가 참다래의 과실 품질과 저장에 미치는 영향
임경호,나양기,임동근,마경철,조윤섭,김월수,이상현,박용서 全南大學校 農業科學技術硏究所 2001 農業科學技術硏究 Vol.36 No.-
This study were carried out to improve Kiwifruit quality and storage life. Three kinds of calcium compound were sprayed and calcium content of fruits, weight loss during fruit storage and fruit quality were investigated. Calcium contents within leaves and fruit were lower in Clef-non treatment than that of control. The calcium content in fruit pericarp of Kalk-H and CaCl2 was 0.04 to 0.05% higher than that of control. Fruit weight and soluble solids content at harvest was a little higher but acidity and fruit hardness was lowered. Fruit weight loss of Kalk-H and CaCl2 treatment was 1.39 to 1.53% lower than that of control during storage. The soluble solids of ripen fruit was 1.0 to 1.3% higher in all treatment and 0.8% higher in Kalk-H treatment in 120 of after storage. Fruit hardness of control fruit was higher at harvest but that of CaCl2 treatmented fruit was 0.39㎏/φ 5㎜ higher in 120 days of storage.
발전기 고정자 권선용 마이카/에폭시 수지의 표면 및 구조분석
이상교,심재선,정의남,송우창,박하용,심상흥,임윤희,박종국,심낙순 三陟大學校 1998 論文集 Vol.31 No.1
The purpose of this study is to determine the ageing mechanism of Mica/Epoxy composite material for large generator stator windings in order to estimate remaining life of generator. X-ray analysis is performed to investigate the position and structure of mica crystal in insulation materials. The phase change of aged and sound specimen under each atmosphere isn't observed. Surface analysis of insulation materials by optical microscope also show that the sound and aged specimen, sliding phenomenon by shear and thermal stress is observed both interface between mica and epoxy.
토끼에서 Etofenprox와 Spinosad 합제의 국소자극성 시험
황윤환,김명석,송인배,박병권,양승호,임용현,송치용,안성한,남현수,임정교,정상일,명노일,윤효인 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2008 動物醫科學硏究誌 Vol.15 No.1
This study was performed to evaluation the skin and eye irritation of etofenprox 8% and spinosad 4% combination in male New Zealand White rabbits. In skin irritation test, the combination of etofenprox and spinosad did not showed any change of body weight but caused slight skin irritation with the P.I.I. (primary irritation index) value 0.25. The etofenprox and spinosad combination showed severe eye irritation 1 h, 24 h, 48 h, and 72 h after ocular treatment, having the A.O.I. (acute ocular irritation) value of 37.3. Therefore, these result indicated that the combination of etofenprox and spinosad might be irritant formulation on eye and skin.
BRS 생체정보 분석방법(分析方法)의 정확도(正確度) 확인 연구
유상구,임무열,오상문,유경배,신연호,박병운,이완희 한국정신과학학회 1998 韓國精神科學學會誌 Vol.2 No.2
BRS는 인간의 잠재능력을 적극적으로 계발 · 활용하여 임의의 시료에 대한 미지 (未知)의 생체정보 (Bio-Information)를 편리하게 분석할 수 있는 효과적이고 경제적인 분석장비이다. 그러나 BRS와 관련된 분석방법 자체의 정확도에 대한 연구는 충분하게 이루어지지 않고 있다. 그래서 BRS 분석방법의 정확도를 과학적으로 확인해보기 위해서 본 연구를 진행했다 실험결과, BRS에 의한 생체정보 분석방법 의 정확도는 측정자의 숙련정도에 따라 다르지만 고급 측정자의 경우에는 95% 이상의 높은 확률로 표준시료의 생체정보를 정확하게 분석할 수 있으며, 측정자의 분석능력이 떨어지는 경우에는 여러 명의 측 정자를 대상으로 비교검토(Cross-Check) 방식으로 실험을 보완하면 90% 이상의 정확도를 확보할 수 있었다. BRS is a sort of analysis-instrument which help to estimate some Bio-Information for a sample conveniently and effectively But, for lack of the study to verify the confidence-degree of the Bio-Information analysis method related to BRS, the availability of the method is not known clearly yet, It was the reason that made authors perform this study And It was possible to arrive at the following two conclusions I though the confidence-degree of the Bio-Information analysis method ny BRS was different according to the degree of the expertness of a person using the instrument in the case of the very skillful expert, the confidence-degree for the standard sample used in this study was reached to 95% up 2 In the general case, to improve of the confidence-degree of the Bio-Information analysis method by BRS, the cross-check method by the several measuring person can be introduced.
ICR계 마우스에서 홍화씨 에탄올 추출물의 급성독성시험
황윤환,박병권,임종환,김명석,송인배,명노일,정상일,윤효인 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2008 動物醫科學硏究誌 Vol.15 No.1
The present study was carried out to investigate the potential acute toxicity of safflower seed by a single oral dose in ICR mice. Twenty animals of each sex were randomly assigned to four groups of 5 rats each and were administered singly by gavage at dose levels of 0, and 2,500 mg/kg bodyweight. Mortalities, clinical findings, and body weight changes were found and complete gross postmortem examinations were performed. Throughout the study period, no treatment-related deaths were observed. There were no adverse effects in clinical signs, body weight, and gross findings at any dose tested. The results showed that the single oral administration of safflower seed did not cause any toxic effect at the dose levels of 2,500 mg/kg in rats and the minimal lethal dose was considered to be over 2,500 mg/kg body weight for both sexes.