“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”

OBRIGADO DEUS PELA VIDA,PROTEGENOS E GUARDANOS DE TODO MAL


AUTOR DO BLOG ENG. ARMANDO CAVERO MIRANDA SAO PAULO BRASIL

terça-feira, 25 de maio de 2010

Series connection of IGBT





























Series connection of IGBT
The-Van NGUYEN, Pierre-Olivier JEANNIN, Eric VAGNON, David FREY, Jean-Christophe CREBIER
Grenoble Electrical Engineering Laboratory, CNRS UMR 5529 INPG/UJF
BP 46, F – 38402 SMH Cedex,
Grenoble, France
The-Van.NGUYEN@g2elab.grenoble-inp.fr
Pierre-Olivier.JEANNIN@g2elab.grenoble-inp.fr







sábado, 15 de maio de 2010

Ray Kurzweil - Scientist, inventor, entrepreneur, author and futurist

ComputerHistory — 20 de setembro de 2009 — [Recorded July 13 2009] Ray Kurzweil is a 21st century polymath. He is a scientist, inventor, entrepreneur, author, visionary and futurist. As a scientist and inventor he has pioneered work in optical character recognition (OCR), speech recognition technology, and electronic keyboard instruments. As an entrepreneur, Kurzweil has founded businesses in the fields of OCR, music synthesis, speech recognition, reading technology, virtual reality and financial investment. He is the author of numerous books on health, artificial intelligence (AI), the technological singularity and futurism. The Kurzweilian version of the future is the inevitable merger of humans and intelligent machines.

sexta-feira, 14 de maio de 2010

Watch: Engineering, Innovation, and the Challenges of the 21st Century

Watch: Engineering, Innovation, and the Challenges of the 21st Century

Watch video Feb. 23, 2010, talk by Charles M. Vest, president of the National Academy of Engineering and President Emeritus, MIT.

Vest
's lecture is part of the John R. and Donna S. Hall Engineering Lecture Series, established in 2002 to allow Vanderbilt engineering students hear renowned engineers from universities and agencies address engineering topics of particular interest.

Contact:
Brenda Ellis



Verification of Rogowski Current Transducer’s



















Verification of Rogowski Current Transducer’s
Ability to Measure Fast Switching Transients
C. R. Hewson, W. F. Ray and R. M. Davis
Power Electronic Measurements Ltd.,
164 Lower Regent Street, Beeston, Nottingham, NG9 2DJ, UK

Abstract - Rogowski current transducers combine a high
bandwidth, an easy to use thin flexible coil, and low insertion
impedance making them an ideal device for measuring pulsed
currents in power electronic applications. Practical verification of
a Rogowski transducer’s ability to measure current transients due
to the fastest MOSFET and IGBT switching requires a calibrated
test facility capable of generating a pulse with a rise time of the
order of a few 10’s ns. A flexible 8-module system has been built
which gives a 2000A peak current with a rise time of 40ns. The
modular approach enables verification for a range of transducer.








domingo, 2 de maio de 2010

62º FPB - Tecnologia Militar - Luis Nassif - BRASIL

Brasilianas — 15 de setembro de 2009 — 62º FPB - Tecnologia Militar - A Defesa e o Novo Plano da Política Industrial - 17/12/2008

Primera Comunicación con el Cosmos en Latinoamérica -PERU-RUSSIA

TVUNI — 26 de agosto de 2009 — El Jueves 20 de Agosto se llevó a cabo el 1er radioenlace en Latinoamérica con el Cosmos. Esta comunicación se llevó a cabo en la Universidad Nacional de Ingeniería del Perú a las 13:32, hora local, y lo cual marcó un hito en la historia de las telecomunicaciones del Perú y Latinoamérica. El radioenlace tuvo una duración de 10 minutos en los cuales el rector de la UNI Mag. Ing. Aurelio Padilla Ríos se comunicó con el comandante ruso de la EEI Gennady Ivanovich Padalka quien tuvo frases de elogio y gratos recuerdos del Perú. TV UNI © 2009. Lima, Perú.

PROGRAMA ESPACIAL EN LA UNI-PERU-RUSSIA

IVANPANTA — 25 de agosto de 2009 — UNIVERSIDAD DE KURSK , UNIVERSIDAD NACIONAL DE INGENIERIA Y CORPORACION ENERGIA ( RUSIA)

sábado, 1 de maio de 2010

Chinese Physics C



Chinese Physics C covers research into the theory, experiment and applications of particle physics, nuclear physics and astrophysics.

Announcement from IOP Publishing

From January 2009, Chinese Physics C (formerly High Energy Physics and Nuclear Physics) will be hosted and distributed (outside mainland China) by IOP Publishing.

Chinese Physics C (formerly High Energy Physics and Nuclear Physics) was founded in 1977. It is sponsored by the Chinese Physical Society and supported by the Institute of High Energy Physics and the Institute of Modern Physics of the Chinese Academy of Sciences.


Plasma Sources Science and Technology


Plasma Sources Science and Technology

A single interdisciplinary forum for physicists, engineers and materials scientists working in the increasingly significant field of low-temperature plasma science.

Journal of High Energy Physics


Journal of High Energy Physics

Semiconductor Science and Technology Journal


Semiconductor Science and Technology

Semiconductor Science and Technology is the IOP's journal dedicated to semiconductor research. The journal publishes research on the physical properties of semiconductors and their applications.