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송기홍 부산대학교 사범대학 과학교육연구소 1993 科學敎育硏究報 Vol.20 No.-
Optimization problems occurs in many situations in application and thus defines an important field in applied sciences. This paper discusses the implemention of optimization problems using Mathematica. Along the way, the advantages of employing Mathematica rather than the general purpose languages such as C and Fortran are emphasized. In summary, they are visual approaches and symbolic manipulation of methematical expressions.
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송기홍,김원호 동의공업대학 2000 論文集 Vol.26 No.1
In this paper, a statistical radio propagation prediction model of received power using the geographic information system is proposed, by making use of a combination and empirical methods. The validation of the proposed prediction model has been made with the measured data for various radio environment. Note that the use of the prediction model paves the way for estimating received signal level as a function of distance. Since the proposed prediction model included the effect of ground reflected waves and diffracted waves, the variability of signal strength caused by surrounding man-made structures can be predicted with accuracy.
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