Electrostatics

1.2. Cones Speaker cones vary in size and shape as well as the material they are made of. They range from original Rice and Kellog design-paper cone, through Kevlar and carbon fibre, metal (aluminium) and a variety of composites, each manufacturer employing different materials suited to providing the best efficiency and linearity. First of all they wanted to achieve manufacturing consistency since wood is not a homogenous substance and tends to vary from one form of timber to another, even…

2.1. Artificial Insemination (AI) : Development of techniques for successful. .freezing of spermatozoa has progressively evolved over the. . Past 60 years (Kucuk et al., 2014). At the starting of 20th century Ivanov started studying on artificial insemination (AI) of sheep’s, where Ivanov’s .studies on extenders and reproduction resulted in the development and the practical application of AI in farm animals, reviewed by (Bohlooli et al., 2012). AI provides. .many advantages to farmers and…