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안영진,이승호,강신정,황방연,박웅양,안병태,노재섭,이경순 영남대학교 약품개발연구소 1996 영남대학교 약품개발연구소 연구업적집 Vol.6 No.-
A chemical examination of the phenolic compounds in the leaves of Sapium japonicum (Euphorbiaceae) has led to the isolation of eleven phenolic compounds. containing five hydrolysable tannins and six flavonoids. On the basis of chemical and spectroscopic evidences, the structures of these compounds were confirmed to be galic acid(1), 5-O-caffeoyl quinic acid(2), 1-O-galloyl-3, 6-(R)-HHDP-β-n-glucose(coriiagin)(3), 1-O-galloyl-2.4-(R)-DHHDP-βn-glucose (furosin)(4), 1-O-galloyl-2.4-(R)-DHHDP-3.6-(R)-HHDP-β-m-glucose(geraniin)(5), astragalin(6), trifolin(7), afzelin(8), quercetin(9), isoquercitrin(10) and rutin(11). Among them geraniin was the main component.
Sustainability in PET Packaging
Shin, Yang-Jai,Kang, Dong-Ho Korea Society of Packaging Science and Technology 2009 한국포장학회지 Vol.15 No.3
In this work, source reduction of poly ethylene terephthalate (PET) packaging are discussed as aspect of sustainability, such as reuse, refill and recycling through the various treatment methods and historical studies for municipal solid waste (MSW) disposal. Since PET has good chemical, physical and mechanical properties, and provides good oxygen and carbon dioxide barrier properties, PET is one of the most widely used thermoplastic polyester in the U.S. and around the world. As the demand for non-renewable PET is increasing, several approaches have been developed to meet economical feasibility and environmental responsibility without degrading material performance. Several companies, such as Coca-Cola Co., Easterform Packaging Co. and Kraft, have tried to develop lightweight PET bottle, and some of lightweight PET bottles are already commercialized. Reuse and refilling for PET container is well developed in Europe, such as Denmark, German and Netherland by supportive legislation and policies. Recycling process is the best way to economically reduce PET waste. In consequence, advanced technique and further development must be provided due to increasing PET packaging waste.
신양재(Yang Jai Shin),김영주(Young Ju Kim),이순형(Soon Hyung Yi) 한국아동학회 1991 아동학회지 Vol.12 No.1
The purpose of this study was to analyze the environment of poverty children as reported by the children on a questionnaire. The conception of the environment was divided into the physical environment and the sociopsychological environment. The dimensions of the physical environment included household, cultural. and play conditions. The sociopsychological environment included structural (family values, family relationships, and the reinforcement system) and process variables(affect, care, and communication). For the purpose of this survey was administered to 122 children living in a poverty area and 102 children living in a middle-high income area. Statistics used for data analysis were frequency, distribution, percentile, mean and one-way ANOVA. Major findings showed that (1) The physical environment as reported by the poverty children was meager compared with that of children in the middle-high income area: the households were more overcrowded, and cultural conditions. play materials, and space was more limited. (2) The Structural conditions of the sociopsychological environment as perceived by poverty children were more material and physical than that of children in the middle-high income area: family values were oriented more toward materialism: family relationships were more negative and distant: and the reinforcement system was based more on material reward and physical punishment. (3) Process variables were perceived by poverty children as more laissez-faire and rigid; the parents neglected their children and communicated unilaterally more than the middle-high income parents. (4) Poverty children`s perception of the causes of poverty and wealth were perceived as personal and social factors.