“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

sexta-feira, 28 de janeiro de 2011

A Novel Driving and Protection Circuit for Reverse-Blocking IGBT Used in Matrix Converter

A Novel Driving and Protection Circuit for
Reverse-Blocking IGBT Used in Matrix Converter


Daning Zhou, Kai Sun, Student Member, IEEE, Zhichao Liu, Lipei Huang,
Kouki Matsuse, Fellow, IEEE, and Kiyoaki Sasagawa
D. Zhou, K. Sun, Z. Liu, and L. Huang are with the Department
of Electrical Engineering, Tsinghua University, Beijing 100084, China
(e-mail: zhoudn02@mails.tsinghua.edu.cn; sun-kai@mail.tsinghua.edu.cn;
liuzhichao@tsinghua.org.cn; huanglipei@mail.tsinghua.edu.cn).
K. Matsuse is with the Department of Electrical and Electronic Engineering,
Meiji University, Kawasaki 214-8571, Japan (e-mail: matsuse@isc.meiji.ac.jp).
K. Sasagawa is with the Electronics Technology Laboratory, Fuji Electric
Advanced Technology Company, Ltd., Tokyo 191-8502, Japan (e-mail:
sasagawa-kiyoaki@fujielectric.co.






sábado, 22 de janeiro de 2011

A Ciência Brasileira-PARTE II

A Ciência Brasileira-PARTE I



O presidente da Sociedade Brasileira para o Progresso da Ciência (SBPC), Marco Antônio Raupp, informa que o Brasil é responsável por 2,1% da produção de conhecimento no mundo. O cientista lembra que esse é um índice relevante para um país que desenvolve atividade científica permanente somente nos últimos 50 anos.

sexta-feira, 21 de janeiro de 2011

09º Fórum de Debates Brasilianas.org Integração com a Universidade

09º Fórum de Debates Brasilianas.org

Portal Luis Nassif

27/01/2011
Instituto de Engenharia
Avenida Doutor Dante Pazzanese, 120 – Vila Mariana - São Paulo

De acordo com o estudo Sondagem de Inovação, elaborado pela Agência Brasileira de Desenvolvimento Industrial (ABDI), 71,4% das grandes empresas industriais realizaram inovações tecnológicas durante o primeiro trimestre de 2010. A informação está estritamente associada à expectativa de crescimento do setor produtivo, impulsionado, principalmente pela Política de Desenvolvimento Produtivo (PDP), iniciada em 2008.
Nesse sentido, é inerente, ao processo de desenvolvimento de P&D, o trabalho criativo, executado de forma sistemática e com a intenção de aumentar o campo de conhecimento de uma empresa, revertendo-o em novas aplicações e tecnologias. Portanto, a questão da integração entre empresas, Universidades e centros de pesquisa é central para orquestrar todo o sistema industrial brasileiro e posicioná-lo nos mesmos patamares de outros países desenvolvidos.

http://www.brasilianasorg.com.br/seminario/integracao-com-a-universidade

segunda-feira, 17 de janeiro de 2011

Premio: CREATIVIDAD TECNOLÓGICA RTVCIPLIMA DEL COLEGIO DE INGENIEROS DEL PERÚ


El 15 de diciembre del 2010 tuvo a cabo la premiación "CREATIVIDAD TECNOLÓGICA RTVCIPLIMA" organizado por el Colegio de Ingenieros del Perú, el Consejo Departamental de Lima y el Capitulo de Ingeniería Electrónica, en las instalaciones del Colegio de Ingenieros, en donde se premiaron a universidades como Ricardo Palma, Universidad Católica, Universidad Nacional de Ingeniería, Cesar Vallejo y la Universidad Tecnológica del Perú. Dicho reconocimiento fue entregado a los mejores proyectos de las universidades durante la temporada 2010, así mismo se otorgo un reconocimiento a los conductores de los programas de RTVCIPLIMA, dentro de los cuales destaco, Chuya Chuya Ingenieros, conducido por el Ing. CIP Rolando Reátegui y Ciencia hoy conducido por la Lic. Carmen Jallo y el Dr. Agustín Zúñiga..

domingo, 16 de janeiro de 2011

Caratteristiche_principali_dell'UPS_Trinergy.wmv


Durante il convegno E3-DAY del 16 febbraio 2010 Chloride illustra le caratteristiche distintive di Trinergy: UPS modulare di alta potenza (a partire da 200 kVA), con efficienza fino al 99% e scalabilità fino a 9,6-12,8 MW.

Conferenza stampa Chloride: presentazione del nuovo UPS Trinergy

Switch Mode Power Supply Topologies, a Comparative Study


Switch Mode Power Supply Topologies, a Comparative Study
Khoo Ghim Wee
School of Science and Technology
A thesis submitted to SIM University in partial fulfillment of the requirements for the degree of Bachelor of Engineering
2009.
FULL THESIS HERE:http://www.4shared.com/document/uGiacQJz/09_Khoo_Ghim_Wee.html


Current Programmed Control of Three Phase PWM AC-AC Converter


Current Programmed Control of Three Phase PWM AC-AC Converter
Advisor: Nam-Sup Choi
Presented as Thesis for the Degree of Master of Electrical Engineering
by Yulong Li
Department of Electrical Engineering Graduate School
Yosu National University February 2006

FULL PAPER:http://www.4shared.com/document/nZeBEVQW/AC-AC-TRIF.html






Design and Implementation of a Novel Three-Phase for Automatic Voltage Regulator



Design and Implementation of a Novel Three-Phase for Automatic Voltage Regulator
National Central University Electrical Engineering Research Institute
Master thesis
Graduate Student: Yang Zongsong
Advisor: Dr. Xu Guokai
2005
Three-phase ac voltage regulator is capable of providing regulated power source, and one of the important issues of it is to stabilize the power quality. In this paper, a novel switching strategy called phase-shift pulse width modulation is applied to the three-phase four-wire ac voltage regulator(AVR)which utilizes a YY connection for the purpose of enhancing output power rating. The system is made up of three ac choppers with reversible voltage, AVR motherboards and transformers for series voltage compensation. The switching strategy is to match up the components of the system as mentioned above such that the compensation voltage with the same or opposite polarity for the input utility voltage can be simply obtained by controlling the duty cycle of power devices. Consequently, variations of the output voltage would be compensated or restrained. The fast sensing technique is adopted toward output voltage and the control law is implemented through the fixed-point digital signal microcontroller(DSM)(dsPIC30F2010). The system is able to improve reliability, response, efficiency, power factor and reduce cost. It is shown via the experimental results that the system achieves the expected goal of fast voltage regulation.

FULL THESIS HERE:http://thesis.lib.ncu.edu.tw/ETD-db/ETD-search/getfile?URN=92521090&filename=92521090.pdf

4SHARED
http://www.4shared.com/document/76_xV_50/92521090.html




quarta-feira, 12 de janeiro de 2011

Cocreation and Innovation

La innovación en servicios en España



Rooter Analysis http://www.rooteranalysis.es ofrece un estudio de las nuevas oportunidades para el desarrollo de negocios y actividades innovadoras. A través de esta presentación se propone una reflexión acerca de la Innovación en los Servicios sobre la base de que, siendo España un país con una economía con alto componente de este sector, este tema sigue siendo una asignatura pendiente.
Evento relacionado: http://bit.ly/gjSn6V

tres14 - Innovación

tres14 - Innovación




No basta con tener una buena idea o crear un gran invento, lo importante es publicitar el logro y comercializarlo. Eso fue lo que hizo Guglielmo Marconi, el inventor oficial de la radio, aunque muchos otros habían experimentado antes con ella como el ingeniero español Julio Cervera. tres14 entrevista a Cristina Garmendia, científica, actual Ministra de Ciencia e Innovación y ex empresaria, que nos explica cuáles son las claves para que los descubrimientos y los inventos se conviertan en innovaciones.

terça-feira, 11 de janeiro de 2011

III_ICSH: La energía nuclear, ¿sostenible?

El Dilema de la Energía Nuclear: ¿Solución o Problema?

Energia y Medio Ambiente. Conferencias Consejos Sociales Universidades Madrid.


Energia y Medio Ambiente

Presentador: D. José Luis González Besada. Vocal del Consejo Social de la URJC. Director General de Comunicación de Iberdrola.

Ponente: Fernando Temprano Posada. Director de Tecnología de REPSOL.

Intervienen:

D. José Aguado Alonso. Dpto. de Tecnología Química y Ambiental (URJC)
D. José Mª Martínez Val. Dpto. de Ingeniería Energética y Fluidomecánica (UPM)
D. Eloy García Calvo. Dpto. de Química Analítica e Ingeniería Química (UAH). Director del IMDEA Agua
Experiencia de las universidades públicas madrileñas
Madrid 23 de junio de 2009. ETSI Montes.
Video producido por el Gabinete de Tele-Educación de la Universidad Politécnica de Madrid.

domingo, 9 de janeiro de 2011

25-06-2010. Energía para la Unión Europea (I): Hacia un Futuro Sostenible.

25-06-2010. Energía para la Unión Europea (I): Hacia un Futuro Sostenible.

29-10-2010. Energía para la Unión Europea (3): el reto de las renovables en España.

02-07-2010. Energía para La UE (II): Geoeconomía para el Abastecimiento,GEOPOLITICA MUNDIAL

02-07-2010. Energía para La UE (II): Geoeconomía para el Abastecimiento.

Global Uninterruptible Power Supply Systems Market to Reach US$7.8 Billion by 2015, According to New Report by Global Industry Analysts, Inc

Global Uninterruptible Power Supply Systems Market to Reach US$7.8 Billion by 2015, According to New Report by Global Industry Analysts, Inc

See full article from DailyFinance: http://srph.it/egExCx

San Jose, CA (Vocus/PRWEB) January 06, 2011

A part of the power quality industry, UPS systems although flayed by the recent recession, is forecast to recover poise, given the growing ubiquity of power electronic devices. Demand for UPS has long been driven by sturdy growth in servers, personal computers and the stellar levels of development in information technology (IT), IT enabled services (ITES), manufacturing and the Banking, Financial Services and Insurance (BFSI) sectors. The financial crisis led world economic recession during the period 2007 and 2009, not surprisingly left the market hurting. The level of impact wielded by the recession can be thrown into sharp relief by the fact that market distortions, such as, fall in the business confidence index, bleeding corporate balance sheets, enterprise skepticism over infrastructure investments, tight liquidity/financial constraints, lack of credit availability, high borrowing rates and capital shortages to fund new investments in telecommunications, IT infrastructure, plants and equipment, have together shaved off approximately US$1.0 billion in market value between the period 2008 and 2009.

Corporate clamp down on IT budgets, for instance, resulted in declines in new purchases of computing and technology products and delays in data center expansions, which in turn exerted pressure on UPS systems, which are used to provide instantaneous protection to electronic devices/equipments/products against abrupt power failures and interruptions and voltage fluctuations i.e. voltage sags, spikes and surge. Computer and technology products for home users additionally has been severely impacted as a result of falling incomes, reducing household wealth, lower discretionary spends, rising unemployment, and crumbling consumer confidence, thus impacting sales of UPS systems in the consumer market.

Downturn in the semiconductor industry resulted in declines in UPS demand from the semiconductor wafer fabrication sector, wherein wafer fab plants are the largest end-users. Diminished manufacturing and commercial activity and the resulting declines in manufacturing output and industrial production reduced demand for electrical machinery in the process weakening demand for industrial UPS systems. Additionally, significant deflation in prices that began in late 2008 and continued through a major part of 2009 squeezed revenues for manufacturers in this space. With the recession turning most end-use customers price sensitive, volatility in raw material prices have forced manufacturers to absorb increases in production costs thus thinning profit margins further.

Global market for Uninterruptible Power Supply (UPS) Systems will be dominated by developed nations, with the US and Europe together accounting for a major share of the global market revenues, as stated by the new market research report. Apart from scalable and modular devices for data centers and server rooms, manufacturers are introducing single-phase UPS products to increase the number of servers that can be protected by a single UPS. In coming years, the industry will witness improvements in efficiency & control systems for larger UPS systems, which will then become readily available in smaller UPS systems as well. Focused mostly on server level protection, these solutions will find applications in the sub3kVA (pluggable) UPS market.

Looking beyond the current economic turbulence, there is still a lot of untapped potential in the above 200kVA UPS and higher than 500kVA UPS power segments, as outsourced commercial computing propels the need for reliable and robust back-up power solutions at large facilities. Given the undeniable importance of UPS systems in growing economies, developing markets are forecast to emerge to drive growth in the post recession period, given the glitches in the existing regional power scenarios, such as, power grid breakdowns and the resulting lack of continuous power, which in itself is an inducement for UPS installation. Market for Above 500 KVA UPS systems in Asia-Pacific is expected to surge at a CAGR of 2.96% through 2015.

Key players dominating the global uninterruptible power supply systems market include - Active Power Inc., Chloride Group Limited, DB Power Electronics (Pvt) Ltd, Eaton Corporation, Liebert Corporation, Schneider Electric, Piller Power Systems, Riello UPS Ltd., Tripp Lite, among others.

The research report titled "Uninterruptible Power Supply Systems: A Global Strategic Business Report", published by Global Industry Analysts Inc., provides a comprehensive review of market trends, drivers, product overview, competition, product introductions/innovations, and recent industry activity. The study provides market estimates/projections for regions such as United States, Canada, Japan, Europe (France, Germany, Italy, UK, Spain, Russia, and Rest of Europe), Asia-Pacific, Latin America and Rest of World by the following product segments – UPS Systems Less than 5 KVA UPS System, 5.1 to 20 KVA, 20.1 to 50 KVA, 50.1 to 100 KVA, 100.1 to 200 KVA, 200.1 to 500 KVA, and Above 500 KVA.

For more details about this comprehensive market research report, please visit –
http://www.strategyr.com/Uninterruptible_Power_Supply_UPS_Systems_Market_Report.asp

About Global Industry Analysts, Inc.
Global Industry Analysts, Inc., (GIA) is a reputed publisher of off-the-shelf market research. Founded in 1987, the company is globally recognized as one of the world’s largest market research publishers. The company employs over 800 people worldwide and publishes more than 1200 full-scale research reports each year. Additionally, the company also offers thousands of smaller research products including company reports, market trend reports, and industry reports encompassing all major industries worldwide.

Global Industry Analysts, Inc.
Telephone: 408-528-9966 begin_of_the_skype_highlighting 408-528-9966 end_of_the_skype_highlighting
Fax: 408-528-9977
Email: press(at)StrategyR(dot)com
Web Site: http://www.StrategyR.com/

See full article from DailyFinance: http://srph.it/egExCx

Emerson completó la adquisición de Grupo Chloride PLC

Emerson completó la adquisición de Grupo Chloride PLC

Una vez que Bruselas ha autorizado la compra, Emerson acaba de comunicar que ha completado la adquisición de Chloride PLC, grupo británico que compró por 1.500 millones de dólares el pasado mes de julio, y que se incorpora a la división de Emerson Network Power. Chloride es un proveedor de equipos eléctricos, software y sistemas de suministro ininterrumpido de energía, y su tecnología reforzará la estrategia de crecimiento global a largo plazo de Emerson en sistemas SAI y soluciones integrales para centros de datos.

El liderazgo de Chloride en la tecnología UPS, su fuerte presencia europea, su liderazgo en la organización de servicios y sus soluciones personalizadas de energía a través de una amplia variedad de aplicaciones complementa las demás marcas e industrias líderes de Emerson Network Power que comprende Liebert, Avocent, Energy Systems Knürr, ASCO y Aperture. La adición de Chloride refuerza la habilidad de Emerson de proporcionar Business-Critical Continuity™ y de proporcionar una gama completa de soluciones de alimentación para infraestructuras informáticas.

Chloride añade además fuerza a la posición global de Emerson con su tecnología de UPS industriales y su clientela.

“Estamos muy entusiasmados acerca de las oportunidades y opciones que dispondrán nuestros clientes con la adición de Chloride,” afirmó Ed Feeney, vicepresidente ejecutivo de Emerson y líder de negocios de Emerson Network Power.

“Chloride es una empresa excepcional, con una posición líder en el mercado europea y fuertes relaciones en el sector industrial. Esto complementa todo lo que hacemos”.

Un crecimiento rápido en el tráfico de datos y la necesidad fundamental a nivel industrial de una alta disponibilidad es lo que impulsa la necesidad de disponer de soluciones de continuidad de alimentación. Ante la variabilidad de la fuente de alimentación, los clientes confían en la tecnología de Emerson y Chloride para mantener niveles de alimentación eficientes y limpios así como obtener una continuidad cuando la falta de alimentación y estar sin línea no son opciones.

“Puesto que la gestión de la infraestructura física e informática de los centros de datos se vuelve cada vez más compleja y al mismo tiempo fundamental, nuestros clientes deben disponer de soluciones de alimentación integrada completas para llevar a cabo una verdadera Gestión de la Infraestructura de Centros de Datos (DCIM) y aumentar la disponibilidad y rendimiento de la energía” afirmó Feeney.

Emerson dispone ya de una presencia de ventas, ingeniería, investigación y desarrollo y fabricación importante en Europa, con unos 4.300 millones en ventas, unos 24.000 empleados y unas 70 fábricas en la región. En el año 2009, las ventas globales de Emerson Network Power fueron de 5.500 millones de dólares estadounidenses y sus ventas en Europa en el año 2009 fueron de 900 millones de dólares estadounidenses, con unos 3.200 empleados más de 300 ingenieros de diseño y 10 fábricas en la región.

sábado, 8 de janeiro de 2011

CIENCIA E PESQUISA EM PORTUGAL

China and India's Energy Policy Directions


Dr. Fereidun Fesharaki Chairman, FACTS Global Energy Senior Fellow, East-West Center Senior Associate, CSIS A strategic shift in the global oil and gas markets is in the making with the world?s center of gravity shifting to the emerging markets, specifically China and India. Both economies are becoming global giants and because they are heavily regulated, policy directions in both have a huge impact on the global oil and gas markets. The presence of multiple government-owned oil and gas companies, as well as the private sector in India, and with significant power in the hands of the provincial governments in China, the decision-making process remains complex, and at times, mystifying. Dr. Fesharaki will review the short- and long-term strategies being adopted and the implications for the oil and gas business.

sábado, 1 de janeiro de 2011

Ciência na mesa de negociações (parte 4/4) - Tome Ciência

Ciência na mesa de negociações (parte 4/4) - Tome Ciência

Ciência na mesa de negociações (parte 4/4) - Tome Ciência
Enviado por TomeCiencia. - Pesquise mais vídeos sobre ciência.

Ciência na mesa de negociações (parte 3/4) - Tome Ciência

Ciência na mesa de negociações (parte 3/4) - Tome Ciência

Ciência na mesa de negociações (parte 3/4) - Tome Ciência

Ciência na mesa de negociações (parte 2/4) - Tome Ciência

Ciência na mesa de negociações (parte 2/4) - Tome Ciência

Ciência na mesa de negociações (parte 2/4) - Tome Ciência
Enviado por TomeCiencia. - Análises sobre tecnologia e novos vídeos sobre ciência

Ciência na mesa de negociações (parte 1/4) - Tome Ciência

Ciência na mesa de negociações (parte 1/4) - Tome Ciência

Ciência na mesa de negociações (parte 1/4) - Tome Ciência
Enviado por TomeCiencia. - Pesquise mais vídeos sobre ciência.

Reveillon 2011 - Fortaleza - BRASIL-New Year's Eve Fireworks

TV UNIFOR

TV UNIFOR