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%%   CHAPTER 8
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\chapter{RESULTS AND DISSCUSSIONS}
\label{Chapter:8}
\lhead{CHAPTER 8. \emph{RESULTS \& DISSCUSSIONS}}
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\emph{As already discussed, design of Yagi-Uda antenna is not a easy task due to large number of geometrical parameters, i.e., wire-lengths and spacings in between them, and their complex relationship for gain, impedance and SLL, etc. C++ programming platform is used for coding of NSBBO and NSPSO algorithms and NEC2, antenna modeling software, is used to determine antenna characteristics like gain and impedance, etc. This chapter presents average of 10 monte-carlo evolutionary runs to conclude, finally, the comparative convergence performance of stochastic NSBBO and NSPSO algorithms.}

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\section{Introduction}
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BBO and PSO are the stochastic search algorithms...