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이상용,장중순 한국경영과학회 2001 한국경영과학회 학술대회논문집 Vol.- No.1(3)
It is a characteristic of web log files that their sizes have heavy tailed distributions. This paper proposes a TTT plot method of identifying such properties, which is used in reliability analysis. Simulated comparison study of their performances is performed and log files in Korean Edunet and NASA servers are analyzed using proposed methods.
Synthesis of p-phenylenediamine (PPD) from p-Diiodobenezene using Copper(1) catalyst
이상용,김정석,서휘민,강나영,박선영,최원춘,박용기,구기갑 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.0
Aramid fiber is well known to have excellent physical properties such as high thermal resistance and durability. In this work, for the production of p-Phenylenediamine(PPD), which is used as a precursor of para aramid fiber, the reaction of p-Diiodobenzene (PDIB) with a copper iodide catalyst was investigated. In general, as an amine donor for the copper-catalyzed amination of aryl halide, ammonia surrogates are used and results in additional process cost. However, in the present work, to avoid an unnecessary process and the production of undesirable compounds, ammonia was directly applied and found to work successfully. For the improvement of the reactivity, the reduction of the copper catalyst was achieved by using ascorbic acid and dihydroxyfumaric acid.
이상용,이효 한국지방재정학회 2007 한국지방재정논집 Vol.12 No.1
The ageing of population by low fertility and increase of average length of life is a common trend in almost all the industrialized countries. In Korea the total number of the elderly over age 65 exceeded 484.9million(9.5%) in 2006. Korea is faced with the increasing welfare needs by a rapid evolution of population ageing like this and it is also expected to sharply expand the expenditure of elderly welfare services such as pension, medical expense, care payment. so local governments will financially suffers a difficult conditions in the near future. The purpose of this study is to suggest policy directions and alternatives on welfare finance management in response to aged society.Policy alternatives for improving welfare finance System are pursued in terms of institutional improvements such as establishment of financial share principle among governments, enlargement of local share tax' role in social welfare service, introduction of block grant regarding welfare finance in local government.
현대 소반에 관한 연구 - 2000년대 이후를 중심으로 -
이상용 한국가구학회 2018 한국가구학회지 Vol.29 No.3
At the present stage of the ‘Fourth Industrial Revolution’ represented by the high-tech industry, we believe that our society is trying to recover societal interests and crafts to retrieve our cultural identity that our society has forgotten. The traditional culture of Korea was devastated during the Japanese imperialism in Korea, and after the Korean War followed by the industrialization era, it was tainted and neglected in the daily lives encompassed by modern basic needs of food, clothing and shelter. The result was the cultural blending of mixed cultures and other oblivious origins descending into unrefined industrial manufacture. Today, the reason traditional crafts are back in the spotlight is because craft is the root of culture; cultural resources of present and future. However, it is difficult to find cases where our traditional crafts are suitable for modern culture and application to real life. This is because traditional crafts did not have the opportunity to be handed down through times of modernization, causing detachment from our daily lives. The value of crafts, such as ceramics, textiles, metals and woodwork, that was interconnected with real life has lost interest of the consumers with the introduction of cheaper and functional industrial products. In addition, while our society has not recognized the importance of crafts due to the indifference of crafts in industrialization process, the fact that the crafts did not develop accordingly to the ever-changing society and culture made today's crafts difficult. Likewise, as most of the housing styles have changed from the traditional, sedentary culture to the stocking culture, Soban has lost its usage and social value. Craft is the best demonstration of the overall living culture of that time period. Among the traditional woodworks of Korea, Soban is a particular furniture that reveals narratives of various regions of its environment, culture, and tradition based on where it was created. Recently, there are many works and products that reinterpret the value of the formative beauty of Soban. The purpose of this study is to find out the various directions that can be developed to modern housing culture by summarizing contemporary contents interpreted by designers and craft writers since 2000s, and traditional functions and roles of the contemporary.