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저체중 또는 과체중 청소년에서 캠프 프로그램을 이용한 영양 교육효과에 관한 연구
성미경,승정자,류화춘,박재년,박동연,최미경,조경옥,최선혜,이윤신,김유경,이은주 대한지역사회영양학회 2003 대한지역사회영양학회지 Vol.8 No.4
This study was performed to evaluate the effectiveness of a nutrition education program developed for nutritionally imbalanced adolescents. A summer nutrition camp was held for 23 overweight and 16 underweight subjects. Its effectiveness with regard to was evaluated at the end of the camp and 6 months later. Nutrition knowledge, nutritional attitude, food behavior, nutrient intake, exercise habit and ideal body figures desired by the subjects. The results showed significantly higher nutrition knowledge scores at the end of the camp as compared to those obtained prior to the camp program, and these scores were maintained for at least six months. Nutrition attitude scores also improved after the education program, and these improved scores also lasted for 6 months. However, the food behavior scores measured 6 months after the education program were not significantly different from those obtained prior to the camp. Also, the exercise habit, the ideal body figures and the body figures desired by the subjects remained unchanged. When nutrient intakes of subjects were assessed before the program and 6 months later, the mean daily vitamin C intake was significantly increased after the education program. Also, the intake of iron from plant food sources increased in the overweight subjects, while less iron from animal source were consumed by the underweight subjects. Both groups tended to consume more vegetables and fruits 6 months after the education program which may have contribute to the higher vitamin C and plant-based iron intakes. These results indicate that a 4-day nutrition education camp program sustained changes in nutrition knowledge and nutrition attitude for 6 months. The increased intake of vegetables and fruits was also achieved through this education program. However, changes in dietary behavior in adolescents may require repeated education.
需要가 減少하는 減損性 製品에 대한 在庫 體系의 模型 設定에 관한 硏究
정상윤 동국대학교 대학원 1990 大學院硏究論集-東國大學校 大學院 Vol.20 No.-
In the previous studies on Inventory System for deteriorating items, it is assumed that the demand rate is constant and is independent of time during a period of each cycle. However, the assumption is unrealistic because the demand rate is influenced by the price and time. The purpose of this study is to determine optimal ordering quantity and optimal selling price which maximize profit. In this study, it is assumed that the demand rate is governed by the price and time and that replenishment orders are placed at equal intervals in a finite time horizon. A numerical example is used to illustrate the proposed model. A sensitivity analysis to v(parameter of the deterioration rate function), and α(constant representing the decreasing rate of the demand rate ) is also performed. The results of sensitivity analysis show that the optimal selling price increases gradually when v is increased with fixed α. while the optimal ordering quantity decreases with increasing α and fixed v.
정인성,이윤상,이상복,왕지남 대한설비관리학회 2004 대한설비관리학회지 Vol.9 No.4
In this paper, we develop scheduling system under MTO (Make-To-Order) Production and implement it to real application. Generally, scheduling system is regarded as company specific problem such that the required business logic might be different within a same industry. The differences are caused by different constraints of each company requirements. Company specific algorithms are commonly employed using rule-base or heuristic procedure. Based on these characteristics, heuristic procedure are developed and implemented for developing MES (manufacturing execution system). The proposed approach are applied to real industry and proved as an efficient approach in terms of practical views.
정성옥,이윤배 조선대학교 기초과학연구소 1991 自然科學硏究 Vol.14 No.1
With growth of computer science, researches and developments on robot problem-solving have led to many ideas about expert control in artificial intelligence. This paper describes the distributed system of intelligent controller for robot manipulator system with 3 joints. In this paper, I present the result of the experiments which indicate how the motion of controlled robotics might be achieved through similar pattern-based paradigms, implemented for real-time operations on robot manipulator with artificial intelligent methodology. For intelligent controller, a knowledge base system is constructed with the knowledge base, inference engine and user interface to determine the control signals required to obtain the desired results.
성정훈,강대원,이윤수,임준우,홍영호,이덕동 경북대학교 센서기술연구소 1998 센서技術學術大會論文集 Vol.9 No.1
High selective and sensitive thick film type methane gas sensors were fabricated and their sensing characteristics for various hydrocarbon gases were investigated. Raw material, SnO_(2)/Au, prepared by coprecipitation was even grain size. SEM, TEM, BET and XRD analyses were carried out for investigation of surface morphology and crystalline structure. The thick film devices using the above materials exhibited high sensitivity to methane gas at the operating temperature of 400°C. The sensitivity of SnO_(2)/Au+Pd thick film devices to methane gas was higher than that to the other hydrocarbon gases such as iso-butane and propane. The optimal adding amounts of Au and Pd were 1wt.% and 3wt.%, respectively. The sensitivity, S, is defined as {(R_(A)-R_(G))/R_(A)}><100, which R_(A) and R_(G) are resistance in air and that in the gas ambient, respectively.
정은아,김남재,김윤경,김동현,이상인 경희대학교 동서의학연구소 2001 東西醫學硏究所 論文集 Vol.2001 No.-
80% extract of Gamigwaruhaebaekbaekju-Tang (GGHBT), Gagamgwaruhaebaekbaekju-Tang (GGGHBT) and Gamigwaruhaebaekwhanggum-Tang (GGHWT) remarkably showed inhibitory effects on HMG-CoA reductase, lipid peroxidation of rat liver and LDL oxidation, and DPPH free radical scavenging effect in a dose-dependent manner. Especially, GGHWT which is formulated with Trichosanthis Fructus, Pinelliae Tuber, Aurantii Immaturus Fructus, Magnolia Cortex, Allii Macrostemi Bulbus, Cinnamomi Ramulus and Scutellariae Radix on the basis of Gwaruhaebaekbaekju-Tang listed on the traditional medicinal references showed more effective hypocholesterolemic activities in vitro bioassay than the other prescriptions.
정은아,김윤경,김남재,김동현,이상인 경희대학교 동서의학연구소 2001 東西醫學硏究所 論文集 Vol.2001 No.-
Gamigwaruhaebaekwhanggum-Tang (GGHWT) have been evaluated for antihyperlipidemic effects on experimental hyperlipidemic rats and mice induced by Triton WR-1339, corn oil and high cholesterol-diet. Especially, GGHWT is formulated with Trichosanthis Fructus, Pinelliae Tuber, Aurantii Immaturus Fructus, Magnoliae Cortex, Allii Macrostemi Bulbus, Cinnamomi Ramulus and Scutellariae Radix. Oral administration of GGHWT at 500 mg/kg/day for 3 days significantly inhibited the increase of serum triglyceride and LDL-cholesterol, liver triglyceride in hyperlipidemic rats induced by Triton WR-1339. And, GGHWT significantly inhibited the increase of serum triglyceride in hyperlipidemic rats induced by corn oil. Also, administration of GGHWT (500 mg/kg, once daily for 1 week, p.o.) prevented the increase of serum total cholesterol, triglyceride, LDL-cholesterol, liver total cholesterol and triglyceride in 1% cholesterol-diet fed mice. These results suggest that GGHWT is effective for the treatment of hyperlipidemia.
윤성중,류권일,고영헌,김팔규 忠南大學校 産業技術硏究所 2003 산업기술연구논문집 Vol.18 No.2
The purpose of this paper is development of the most suitable backfill material which increases thermal stability and decreases thermal resistances for increasing capacity of the transmission of electricity. In order to proceed this study, the sand which recently was used as backfill material and the stone dust as single material for most suitable backfill material was chosen and experiments on thermal character and basic soil properties were proceeded for appreciating stability and economical efficiency. As a result of this study, natural moisture content of stone dust was higher than that of sand and porosity of stone dust and thermal resistance of stone dust was lower than that of sand. Then the stone dust are expected to increase capacity of the transmission of electricity. In point of stability, because total strain of pipe was within allowed strain, two materials are expected to ensure against risks. Stone dust is considered as useful backfill materials by contributing great economical efficiency, because a price of stone dust is half to the sand.