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윤 영 철 가톨릭관동대학교 산업기술개발연구소 2016 산업기술논문집 Vol.- No.33
ABSTRACT This paper describes a 13.56MHz, 5kW RF high power generator for plasma chambers. The four 1.25kW class-AB push-pull power amplifiers are combined by using wilkinson type transmission-line transformers on water cooled copper plate. The efficiency of 79% at 5.33kW of saturated power level is achieved experimentally.
정춘백·박흥규 가톨릭관동대학교 산업기술개발연구소 2016 산업기술논문집 Vol.- No.33
ABSTRACT This thesis has focused on the definition and analysis of organic soils consolidation characteristic so that it can be used as a basic document for soil mechanics. The following shows the result of physical, chemical and dynamic research on the organic soil collected in a stable state around Go-Seong region in Kang-won province. Physical and chemical characteristics of organic soil in Go-Seong area were measured in terms of the following categories. Natural water content was 111.4∼375.9%, plasticity index was 72.9∼127.4%, specific gravity was 2.15∼2.22, organic content was 22.7∼48.6% and pH was 5.7∼6.9 which corresponded to acidity.