6 resultados para 62896
Resumo:
The main contribution of this project was to investigate power electronics technology in designing and developing high frequency high power converters for industrial applications. Therefore, the research was conducted at two levels; first at system level which mainly encapsulated the circuit topology and control scheme and second at application level which involves with real-world applications. Pursuing these objectives, varied topologies have been developed and proposed within this research. The main aim was to resolving solid-state switches limited power rating and operating speed while increasing the system flexibility considering the application characteristics. The developed new power converter configurations were applied to pulsed power and high power ultrasound applications for experimental validation.
Resumo:
Se repasa la historia de los castillos como fortificaciones medievales que cumplieron funciones militares, residenciales y penitenciarias, desde su origen en el imperio carolingio hasta su decadencia a fines del siglo XV. Se describen algunas de sus estancias y sus partes más características,así como su origen en distintos países.También se nos acerca a aspectos sociales,económicos y de la vida cotidiana de las gentes que vivían en ellos.