The aim of this study was to demonstrate the role of advanced fabrication technology across a broad spectrum of head and neck surgical procedures, including applications in endoscopic sinus surgery, skull base surgery, and maxillofacial reconstruction.The initial case studies demonstrated three applications of rapid prototyping technology are in he
This studyaims at constructing and Faraday Bag implementinga new technique for calculating and correcting the frequency deviation in power systems.Several techniques were used to measure frequency deviation.One of them was Arduino Uno card which uses microcontroller ATmega328.This microcontroller board is an easy to use,accurate, economic and flexi
In this research performed during 1993-1994, the effluent of Behran Oil Refmery, in south of Tehran, which produces different types of industrial oil and greases, was studied and 3 methods of gravity separation, coagulation and flocculation and dissolved air flotation were investigated.In the first phase of the survey, the quality and quantity of t