Power Station
Mostrando 1-12 de 70 artigos, teses e dissertações.
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1. Estimation and Mapping of the Received Power Level of Digital Signals TV Using Spatial Interpolation Methods
Abstract The signal digitization process of the open television system is still in progress, therefore, the study of the digital signal propagation has great importance so that broadcasters can develop and improve the transmission service. The field measurement of digital signal parameters is one of the most reliable means to analyze the signal propagation i
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. Response of vegetation to sheep dung addition in a degraded Cerrado area
RESUMO O Cerrado é o segundo maior bioma do Brasil, sendo este um ‘hotspot’ de biodiversidade. A construção de usinas hidrelétricas dá origem a áreas degradadas, muitas vezes desprovidas de vegetação, denominadas “áreas de empréstimo”. Ovinos excretam grande parte dos nutrientes que ingerem, entre eles fósforo, cálcio, potássio, nitrogê
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-01
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3. Hierarchical and optimization methods for the characterization of tomato genotypes
RESUMO Uma correta caracterização de bancos de germoplasma é fundamental para melhoristas obterem sucesso em programas de melhoramento. Várias pesquisas têm buscado obtenção de genótipos com resistência a pragas. No entanto, não há um consenso em relação a qual metodologia é a mais adequada para caracterizar um banco de germoplasma de tomateiro
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-01
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4. A new species of burrowing snake (Serpentes: Dipsadidae: Apostolepis ) from the state of Mato Grosso, Central-West region of Brazil
ABSTRACT During a faunal rescue conducted at a hydroelectric power station constructed in a Cerrado savanna area in the state of Mato Grosso, a sample of five small stripe-patterned individuals of snakes of the genus Apostolepis Cope, 1862 document the existence of an undescribed species, which is named herein. The new species can be distinguished from its c
Zoologia (Curitiba). Publicado em: 18/06/2018
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5. New concept of tunnel boring machine: high performance using water jet and diamond wire as rock cutting technology
Abstract Tunnel boring machines are important tools in underground infrastructure projects. Although being well established equipment, these machinesare based on designsof more than 60 years ago and are characterized by big dimensions, enormous weight and high power consumption. Commercial aspects should be noted too. The model adopted by the TBM industry re
REM, Int. Eng. J.. Publicado em: 2018-03
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6. Energy Efficient Rate Adaptation Algorithm for FiWi Access Network
Abstract Similar to any telecommunication network, energy efficiency is a desirable feature for fiber wireless (FiWi) access networks. These networks have optical back end and wireless front end. Both ends may contribute for energy efficiency. This work focuses on front end of FiWi access network, which is IEEE 802.11a wireless local area network (WLAN). For
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2017-12
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7. History of studies on Belo Monte hydroelectric power station
Braz. J. Biol.. Publicado em: 2015-08
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8. Occurrence of sulphate reducing bacteria (SRB) associated with biocorrosion on metallic surfaces in a hydroelectric power station in Ibirama (SC) - Brazil
The aim of this study was evaluate, two methods for the detection and identification of sulphate reducing bacteria (SRB): ML medium and PCR with specific primers for SRB groups. SRB were detected through the selective medium only on carbon steel, which showed corrosion. Employing specific PCR primer, SBR were detected from all the metallic components assayed
Braz. arch. biol. technol.. Publicado em: 2013-10
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9. Estimating the location of maximum exposure to electromagnetic fields associated with a radiocommunication station
This paper proposes an approach to estimate the probable location of maximum exposure to electromagnetic fields associated with a radiocommunication station, based only on information of antenna's height, half-power angle and tilt. This approach can be implemented when simulation tools are absent, or/and few basic information on radiating system is available
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2013-06
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10. Modelo de simulação em base horária da vazão na estação fluviométrica da régua-11 = : Simulation model in hourly basis of the flow at the fluviometric station R-11 / Simulation model in hourly basis of the flow at the fluviometric station R-11
The fluviometric station of rule 11, or simply R-11, is situated downstream from the confluence of the Paraná, Iguaçu, Acaray and Monday rivers, about 20 km away from Itaipu Hydroelectric Power Plant on the border between Brazil, Paraguay and Argentina. This region is subject to restrictions imposed by international agreements such as the implementation of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/08/2012
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11. Introdução de misturas de GNV e hidrogênio (Hidrano) em veículos convencionais no Brasil e seus impactos econômicos, ambientais e energéticos / Introduction of CNG and hydrogen (HCNG) for conventional vehicles and its economic, environmental and energy impacts
Several strategies have been proposed to introduce hydrogen in the economy specifically in the transport sector in order to reduce environmental impacts of conventional fuels. One of the strategies implies in adding hydrogen to compressed natural gas (HCNG), making use of the existing refueling stations and natural gas fleet. Thus the costs and time for the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/07/2012
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12. ESTUDO, MODELAGEM E CONTROLE DE UMA MICRO CENTRAL HIDRELÉTRICA COM UTILIZAÇÃO DE GERADOR DE INDUÇÃO AUTO-EXCITADO / STUDY, MODELING AND CONTROL OF MICRO HYDROELECTRIC POWER GENERATION STATION WITH INDUCTION GENERATOR
Na última década houve um aumento significativo no interesse em tecnologias aplicáveis a microgeração de energia elétrica. Fontes de geração de energia hidráulicas, eólicas e solares representam algumas das tecnologias que tiveram importantes evoluções decorrentes dos esforços em pesquisas destinados a esta área de geração de energia. A razã
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/01/2012