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김태원(T. W. Kim),서판기(P. K. Seo),오세웅(S. W. Oh),강충길(C. G. Kang) 한국정밀공학회 2005 한국정밀공학회 학술발표대회 논문집 Vol.2005 No.10월
The rotational barrel type equipment has been designed for the new rheology fabrication process. During the continuous rotation of barrel with a constant temperature, the shear rate is controlled with the rotation speed and rotation time of barrel. The barrel surface can be controlled the temperature by the induction heating and cooling system. Many experiments were widely examined by using this system with controlling the rotation speed and the rotation time. The possibility for the rheoforming process was investigated with microstructural characteristics.
SCN-TLM법을 이용한 스텝 불연속 마이크로스트립 라인 해석
김태원(T. W. Kim),신용조(Y. J. Shin),김윤석(Y. S. Kim),이상희(S. H. Lee) 대한전자공학회 2007 대한전자공학회 학술대회 Vol.2007 No.7
The SCN-TLM method presented in this paper is another independent approaches for obtaining frequency domain results for microstrip line. The structure analysed with this TLM algorithm is step discontinuity microstrip line and the symmetrical condensed node is used. After numerical analysis, the frequency dependent scattering parameters of a step discontinuity micros trip line have been calculated by Fourier transform of the time domain data. From the time domain TLM numerical results, this numerical analysis is shown to be an efficient method for modelling complicated structure as step discontinuity microstrip line.