Wind Measurement
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Aerodynamic effects on a high slenderness concrete chimney
Resumo Este trabalho apresenta os resultados da determinação teórico-experimental do comportamento aerodinâmico de uma chaminé esbelta de concreto armado, com 150m de altura e esbeltez 30. Foram construídos dois modelos reduzidos: um rígido para medição das pressões e outro aeroelástico, reproduzindo as principais características dinâmicas da es
Rev. IBRACON Estrut. Mater.. Publicado em: 13/12/2019
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2. Thermal comfort monitoring in aviaries by a real-time data acquisition system
RESUMO O conforto térmico no interior de instalações de criação de frangos de corte é essencial na obtenção de bons resultados nesta atividade de produção. A avaliação das condições termodinâmicas adequadas requer a medição e controle, geralmente implicando em custos e manutenção especializada. Neste trabalho, objetivou-se monitorar a dist
Rev. bras. eng. agríc. ambient.. Publicado em: 12/08/2019
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3. EVATUATION SYSTEM OF EXHAUST FANS USED ON VENTILATION SYSTEM IN COMMERCIAL BROILER HOUSE
ABSTRACT: This study aim to develop a system, called FANS-N, for evaluation the exhaust fans in the ventilation system of broiler facilities. The system is divided into: 1) Mechanical Structure - consisting of two stepper motors for positioning a anemometer sensor in the vertical and horizontal coordinates; 2) Electronic Interface - control of the anemometer
Eng. Agríc.. Publicado em: 2017-09
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4. Ocorrência de ventos fortes no estado do Paraná : gênese e impactos
The knowledge of climatic conditions is essential to socioeconomic activities, especially for agricultural and urban planning. Thus has the objective of this work to present a study of winds in the state of Paraná, which was established by calculating and analyzing daily, monthly and yearly mean wind speed, relative frequency, distribution of the accumulate
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/08/2012
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5. Medição do aporte atmosférico dos elementos-traço nos municípios de Campinas e Paulínia com auxílio da espécie vegetal Tillanásia usneoides (L.) / Measurement of atmospheric supply of trace elements in Campinas and Paulínia with support of vegetal specie Tillandsia usneoides (L.)
The epiphytic bromeliad Tillandsia usneoides (L.) was used as biomonitor of the atmosphere at seven sites along a transect of the municipalities of Campinas and Paulinia. The selected sites are located near highways, industries and avenues, as well as in places farther away from human activities. The samples of were introduced by about two months during five
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/06/2011
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6. Modelo Penman-FAO ajustado para a estimativa da necessidade hídrica do feijão no Cerrado.
ABSTRACT: Bean crop producers from the Brazilian Cerrado region have only one technology adjusted for irrigation management which consist in the measurement of soil-water tension through the use of tensiometers. Although this methodology has high potential of use, it has not been widely adopted by the producers due to problems in instrumentation maintenance.
Planaltina. Publicado em: 2011
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7. MEDIÃÃO DA EVAPORAÃÃO EM TANQUES CLASSE A INSTALADOS EM AMBIENTES AQUÃTICO E TERRESTRE / MEASUREMENT OF EVAPORATION IN A TANK CLASS SYSTEMS IN AQUATIC ENVIRONMENT AND LAND
As condiÃÃes climÃticas das regiÃes semi-Ãridas favorecem a evaporaÃÃo que representa a maior perda do volume lÃquido dos aÃudes, portanto, um parÃmetro importante para o gerenciamento dos recursos hÃdricos. Um dos instrumentos mais difundidos e utilizados para estimar a evaporaÃÃo em reservatÃrios à o Tanque Classe A. Assim, este trabalho tev
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/01/2010
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8. VARIAÇÃO SAZONAL DA ACUMULAÇÃO E FLUXO NOTURNOS DE ESCALARES EM UMA PASTAGEM NA REGIÃO AMAZÔNICA / SEASONAL VARIATION OF SCALAR NOCTURNAL ACCUMULATION AND FLUXES OVER A PASTURE IN AMAZONIA
Carbon dioxide and Radon nocturnal vertical accumulations over a pasture site at the Amazon region are investigated. The site is characterized by a strong thermal stability along the night, which is responsible for suppressing a good portion of the local turbulent mixing. Therefore, it is problematic to use techniques such as the eddy covariance for estimati
Publicado em: 2010
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9. Análise multi-espectral dos eventos cíclicos de Carinae / Multi-spectral analysis of the cyclic events of Eta Carinae
In this thesis, a multi-wavelength study on the cyclic events of Eta Carinae was performed. The presence of a hole in the polar region of the Homunculus was confirmed by the velocity maps of the [Fe II] 12567 line. The blue-shifted component of the He I 10830, detected towards the NW lobe, was mapped and it is in the equatorial plane. It was observed that wi
Publicado em: 2009
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10. EMISSÃO DE GASES DE EFEITO ESTUFA EM SISTEMAS DE MANEJO EM SOLO DO PLANALTO MÉDIO DO RIO GRANDE DO SUL / SHORT-TERM GREENHOUSE GASES EMISSIONS IN SOIL MANAGEMENT SYSTEMS IN OXISOL OF SOUTHERN BRAZIL
Agriculture is directly linked to atmospheric concentration of greenhouse gases (GHG) through basic processes that occur in the soil-plant system. Agricultural soils can act as a source or sink of GHG depending on the management practices adopted. The objective of this research was to evaluate the GHG flux in different soil management systems. This project w
Publicado em: 2008
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11. Manutenção de uma faixa de eucaliptos para proteção da borda de um fragmento florestal / Eucalyptus zone maintenance to protect a border of forestal fragment.
Eucalyptus zone maintenance to protect a border of forestal fragment. Nowadays, one of the biggest challenge found is the balance between the non tropical actions and the environment, this is called "sustentability". This work had as an objective values the influence of maintenance, during the forestal exploration of three lines of eucalyptus around one fore
Publicado em: 2008
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12. Determination of marine wind fields in the Campos basin from ENVISAT/ASAR images / Extração do campo de vento na Bacia de Campos, RJ, a partir de imagens ENVISAT/ASAR
The knowledge of ocean surface winds is very important for oceanographic and meteorological studies as well as for practical applications. Considering the great difficulty of installation, operation and maintenance of instrumentation for the in situ measurement of marine winds, it is of high interest the development of methodologies for obtaining this variab
Publicado em: 2007