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Colonial Modernization of the Traditional City of Daegu
김일수 한국학중앙연구원 한국학중앙연구원 2008 Korea Journal Vol.48 No.3
Modern urbanization in Daegu originated in the colonial period. In this paper, I chronologically reviewed how the traditional city of Daegu, which was surrounded by fortress walls until the end of the Great Han Empire era, was taken apart and redeveloped by the city during the colonial period, and also examined the resultant changes to the urban landscape, as well as the creation and development of a divided urban space. I summarize the main points of this study as follows. First, I traced the urbanization of Daegu from the end of Joseon to the early Japanese colonial period. Second, I pointed out that the urbanization of Daegu during the 1920s and 1930s was undertaken according to an urban planning project, even while hierarchy among ethnic groups within Daegu became more prominent and even structured. Finally, the Japanese-directed modernization of Daegu relied considerably on Japanese interest, which influenced the changes made to the landscape. This resulted in the thorough dismantling and destruction of traditional spaces and buildings. At the same time, differentiation among ethnic groups became greatly pronounced. Modern urbanization in Daegu originated in the colonial period. In this paper, I chronologically reviewed how the traditional city of Daegu, which was surrounded by fortress walls until the end of the Great Han Empire era, was taken apart and redeveloped by the city during the colonial period, and also examined the resultant changes to the urban landscape, as well as the creation and development of a divided urban space. I summarize the main points of this study as follows. First, I traced the urbanization of Daegu from the end of Joseon to the early Japanese colonial period. Second, I pointed out that the urbanization of Daegu during the 1920s and 1930s was undertaken according to an urban planning project, even while hierarchy among ethnic groups within Daegu became more prominent and even structured. Finally, the Japanese-directed modernization of Daegu relied considerably on Japanese interest, which influenced the changes made to the landscape. This resulted in the thorough dismantling and destruction of traditional spaces and buildings. At the same time, differentiation among ethnic groups became greatly pronounced.
김일수,강민수,박정현 한국세라믹학회 1998 한국세라믹학회지 Vol.35 No.4
The reaction bonded alumina ceramics with reinforced particles which have low shrinkage were pro-duced by blending of SiC or TiC or ZrO2 powders to the mixture of Al metal and Al2O3 powder. The powd-ers were attrition milled isostantically pressed and preheated tio 110$0^{\circ}C$ with a heating rate of $1.5^{\circ}C$/min The specimens were then sintered at the temperature range 1500 to 1$600^{\circ}C$ for 5 hours with a heating rate of 5$^{\circ}C$/min. The specimens showed 5-9% weight gain and 2-9% dimensional expansion through the complete oxidation of Al after preheating up to 11--$^{\circ}C$ the overall dimensional change of the specimens after the reaction sintering at 1500-1$600^{\circ}C$ was 6-12% The maximum densities were 92% theoretical. The fine grain-ed(average grain size :0.4 ${\mu}{\textrm}{m}$) microstructure were observed in the specimen with ZrO2 and SiC. But the microstructure of specimen with TiC was relatively coarse.(average grain size : 2.1 ${\mu}{\textrm}{m}$) The mullite phase was formed by the reaction of Al2O3 and SiO2 in a specimen with SiC. In the TiC contained specimen TiC was oxidized into TiO2 and finally reacted with Al2O3 to form Al2TiO5 during sintering.