Hybrid Drive
Mostrando 1-12 de 36 artigos, teses e dissertações.
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1. HARVESTING FRUITS USING A MOBILE PLATFORM: A CASE STUDY APPLIED TO CITRUS
ABSTRACT Harvesting fruits and vegetables has been a challenge. Mobile platforms for harvesting vegetables and fruits have been used, but with some limitations, such as their applicability for a certain time of the year and for a specific crop. A mobile platform was initially developed for harvesting fresh market tomatoes, mainly staked in Brazil. However, a
Eng. Agríc.. Publicado em: 2018-04
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2. Improved capacity of eccentric mechanical presses existing in Brazilian industry / Melhoria na capacidade de produção das prensas mecânicas excêntricas existentes na indústria brasileira
This work defines a methodology to improve the production capacity of the mechanical presses existing in the Brazilian industry. The eccentric mechanical presses with crank drive (connecting rod) are very simple machines for operation, but these presses use a lot of energy during the working cycle, partially due the fixed descent and rising speeds of the sli
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2011
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3. Transcriptional networks reconstruction: identification of genes involved on cattle response to tick Rhipicephalus (Boophilus) microplus infestation.
In tropical countries, losses caused by tick infestation in cattle lead to a great impact on animal production systems. Weight and feed conversion reduction, together with diseases transmitted by the parasite are some of the problems that lead to economic losses of billion dollars a year. In a general way, Bos taurus indicus cattle are less susceptible to in
INTERNATIONAL CONFERENCE OF THE BRAZILIAN ASSOCIATION FOR BIOINFORMATICS AND COMPUTATIONAL BIOLOGY. Publicado em: 2011
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4. Algoritmo para frenagem regenerativa de uma máquina síncrona de imã permanente / Algorithm for regenerative braking of a permanent magnet synchronous machine
Environmental protection and optimal energy resources are great activity research areas. As a result of these researches, electric vehicles (EVs) and hybrid (HEV) developments have been accelerated. They have challenging problems such as low autonomy, power conversion, vehicle control, energy management and distribution within it, as well as the esthetic and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/08/2010
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5. A rough terrain traction control technique for all-wheel-drive mobile robots
Traction control is a critical aspect of mobile robots that need to traverse rough terrain, avoiding excessive slip - which may cause the terrain to collapse locally and trap the robot wheels - and guaranteeing an adequate trajectory and speed control while reducing the power requirements. Traction control of all-wheel-drive robots in rough terrain was origi
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-12
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6. Transmissões de vídeo ao vivo geradas por usuários: caracterização e análise
In the past few years, we have observed a huge revolution in terms of the way we create and distribute video on the Internet. With the popularization of digital cameras and with the increase of Internet access speeds, video content creation and distribution on the Internet has grown considerably. There are a number of recently created companies which offer t
Publicado em: 2009
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7. ANÁLISE COMPARATIVA DE INVERSORES MULTINÍVEIS COM CÉLULAS H-BRIDGE CONECTADAS EM SÉRIE / COMPARISON ANALYSIS OF CASCADED MULTILEVEL INVERTERS
This Master Thesis presents a methodology to compare different topologies and configurations of multilevel systems applied to drive medium voltage induction motors. Initially, it presents the input and output parameters that must be supplied by the power drivesystems manufacturer. Then, the mathematical models of the performance indexes used are presented, b
Publicado em: 2006
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8. Efficiency of LH+EC current drive in tokamaks featuring an internal transport barrier
In the present paper we study the effects due to the occurrence of radial transport of particles in a tokamak on the efficiency of current drive due to combined action of lower hybrid waves and electron cyclotron waves, in the presence of an internal transport barrier. The results are obtained by numerical solution of the Fokker-Planck equation which rules t
Brazilian Journal of Physics. Publicado em: 2005-09
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9. Effect of radial transport on the LH current drive efficiency in tokamaks featuring an internal transport barrier
In the present paper we study the effects of occurrence of radial transport of particles in a tokamak, and the effects of the presence of an Internal Transport Barrier (ITB), on the current drive efficiency and power deposition profiles in the case of lower hybrid waves generating an extended tail in the electron distribution function. The results are obtain
Brazilian Journal of Physics. Publicado em: 2004-12
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10. Collisionless dissipation of radio-frequency waves in axisymmetric tokamak plasmas
Contributions of trapped and untrapped particles to the transverse and longitudinal dielectric permittivity elements are present for radio-frequency waves in a tokamak with circular cross-sections of the magnetic surfaces and arbitrary aspect ratio. Imaginary parts of the longitudinal permittivity elements are important to estimate the wave power absorbed by
Brazilian Journal of Physics. Publicado em: 2002-03
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11. SST and ADITYA tokamak research in India
Steady state operation of tokamaks plays an important role in high temperature magnetically confined plasma research. Steady state Superconducting Tokamak (SST) programme in India deals with the development of various technologies in this direction. SST-1 [1] machine has been engineered and is being fabricated at the Institute for Plasma Research. The object
Brazilian Journal of Physics. Publicado em: 2002-03
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12. Ordem e caos em plasmas magnetizados
The objective of this thesis is to present a clear understanding of some important nonlinear phenomena that are common in space and laboratory plasmas. Specifically,the present analytical and numerical studies have focused on the properties of electromagnetic turbulence as well as associated coherent structures and chaotic behaviors in a multi-component magn
Publicado em: 1999