selective harmonic elimination (she) is a powerful modulation scheme aims to find the required switching angles in order to eliminate the number of undesired harmonics. she is a complicated problem which consists of several nonlinear equations which have multiple local minima. in order to eliminate the higher number of undesired harmonics and as a result reducing the total harmonic distortion (...

Since Roentgens discovery of the X-rays 1895, radiation therapy (RT) has been one of the most successful modalities used to treat cancer (Rontgen 1995). The experimental radiation treatment of glioma, however, took place first in 1938 (Bailey & Brunschwig 1938). Since then advances in radiation technology have expanded the role and value of using ionizing radiation in diagnosis, imaging and the...