"OBRIGADO DEUS PELA VIDA,PELA MINHA FAMILIA,PELO TRABALHO,PELO PÃO DE CADA DIA,PROTEGENOS DO MAL"
“SE SEUS PROJETOS FOREM PARA UM ANO,SEMEIE O GRÂO.SE FOREM PARA DEZ ANOS,PLANTE UMA ÁRVORE.SE FOREM PARA CEM ANOS,EDUQUE O POVO.”
“Sixty years ago I knew everything; now I know nothing; education is a progressive discovery of our own ignorance. Will Durant”
sexta-feira, 30 de dezembro de 2011
Power electronics: from simple to complex
Title: Power Electronics: from simple to complex
Author: Semenov B.Yu.
Publisher: Solon-Press
Year: 2006
Pages: 415, ill.
Language: Russian
Format: pdf / rar
Size: 52,51MB.
In this book you will learn about this rapidly developing area of technology as power electronics, which aims to decrease the mass and dimensions of power electronics devices and electric motors. Today, it is impossible to imagine a computer, camcorder, DVD-player, a TV without a compact and reliable pulsed source. Unfortunately, in recent years there has been an acute shortage of literature on this topic. The second edition greatly revised and updated.
LINK DOWNLOAD HERE
Power Electronics. Professional Solutions
Title: Power Electronics. Professional Solutions
Author: Semenov B.Yu.
Publisher: SOLON-PRESS
Year: 2011
Pages: 416
ISBN: 978-5-91359-097-8
Series: Components and Technologies
Language: Russian
Format: DjVu
Size: 24.5 MB
Power electronics - a specific area of knowledge engineering, where a lot is determined not so much a purely theoretical knowledge as experience, erudition, lively search for ways to design reliable electronic equipment. Ways of solving a technical problem of power electronics can be quite unconventional, although there are a number of rules, without observing that if nothing is impossible to develop workable.
This book is designed to help get involved in the design, construction and operation of static converters of electricity on the basis of modern semiconductor power components. The book is addressed to engineers and technicians engaged in the development, modernization and repair of power electronics, and students of higher secondary schools, as well as anyone interested in the problems of converters.
LINK DOWNLOAD HERE:
quarta-feira, 28 de dezembro de 2011
Chang Zheng 3B Night Launch with NIGCOMSAT-1R satellite Cohete chino CZ lanza el satélite nigeriano NigComSat-1R
December 19, 2011 - Xichang Satellite Launch Center.
China successfully sent a Nigerian communication satellite into orbit with its Long March-3B carrier rocket from southwest Xichang Satellite Launch Center at 00:41 Beijing Time Tuesday.
The satellite, produced by China Academy of Space Technology, will provide communication, broadcast, Internet connection, remote education and navigation services to parts of Africa, Europe and Asia.
China will also provide monitoring and control services for the satellite and support its ground stations.
It was the third time China provided satellite launch service for foreign users this year, following the successful launch of two Pakistani communication satellites.
China plans to launch four to five satellites for foreign users in 2012.
Cohete chino CZ lanza el satélite nigeriano NigComSat-1R
Un cohete chino Larga Marcha-3B/E (Chang Zheng-3B / E) lanzado desde el Centro Espacial de Xichang puso en órbita el satélite nigeriano NigComSat-1R.El NigComSat-1R (Nigeria Communication Satellite) es un satélite de comunicaciones geoestacionario de 5.150 kg construido por CAST (China Academy of Space Technology) subsidiaria de la Corporación China de Ciencia y Tecnología Aeroespacial (CASC), para la empresa NigComSat Ltd de Nigeria una compañía estatal responsable de la operación y gestión de los satélites de comunicaciones nigerianos.
Este satélite fue encargado llave en mano en marzo de 2009 a China Great Wall Industry Corporation (CGWIC) que actúa como contratista principal del programa. Está montado sobe el bus DFH-4 (Dongfanghong-4) y vá equipado con 28 transpondedores, incluyendo 4 en banda C, 14 de banda Ku, 8 en la banda Ka, 2 L-band.y dos en banda L.
Assinar:
Postagens (Atom)