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In this work, a computer model constructed and implemented using MATLAB, based on the principle equations of an antenna array which control the array pattern of isotropic sources in order to characterize the best antenna array pattern for mobile base stations.A variety of operating conditions are considered for determining the antenna array pattern, such as phase between sources, the number of array elements, and elements spacing.The following types of array antennas are discussed in this work : broadside array, ordinary end-fire array, end-fire array with increased directivity, collinear...

Sulfonamides are the commonly used antibiotics, which are used in the combination with other antibiotics to enhance their effect. They are absorbed in the intestine and are widely distributed into the tissues. Sulfonamides inhibit the growth of bacteria by reverse inhibition and block the cycle of folic acid synthesis while they are effective against only those bacteria which produce folic acid intracellular. This book discusses about the synthesis of sulfonamides their characterization with modern instruments and their importance. The antibacterial activity which increases their importance...

This book is about abutment of Implants. Refine your Clinical skills in the management of implant patients. This book can help you in choosing the abutments for an implant and the cements which can guarantee your success in Implants, this book also gives you an idea about the height and angulation of the implant abutment. The success of all the implants depends upon the amount and direction of the load and also the esthetic which it produces.