Meteor
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Statistics of South Delta-Aquariids (SDA) meteor showers registered at UNIVAP in 2017 and 2018
Abstract Meteor showers, seen at regular and frequent intervals, occur when the Earth crosses the orbit of a comet and many small dust particles enter the Earth's atmosphere. In this paper we compare the Southern Delta-Aquariids (SDA) shower recorded by the UVP1 and UVP2 meteor monitoring stations in the Southeastern of Brazil, in 2017 and 2018. These statio
Rev. Bras. Ensino Fís.. Publicado em: 01/07/2019
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2. A Mathematical Model for Simulating Meteor Showers
RESUMO Neste trabalho, apresenta-se um modelo matemático que possibilita a simulação da trajetória de um meteoro como visto por um observador localizado em qualquer região na Terra. A estratégia de solução consiste em definir um novo sistema de coordenadas, denominado Sistema Radiante de Coordenadas, que é centrado no observador e tem seu eixo z ali
TEMA (São Carlos). Publicado em: 30/05/2019
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3. Impact of biosynthesized silver nanoparticles on protein and carbohydrate contents in seeds of Pisum sativum L.
Abstract Understanding the effects of nanoparticles on edible crops is a matter of importance, since nanoparticles are often released and spread in the environment because of extensive research. This study aimed to examine the effect of silver nanoparticles on protein and carbohydrate contents of Pisum sativum L. seed. Spherical crystalline silver nanopartic
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-12
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4. Maré lunar observada com radar meteórico em três latitudes no Brasil / Lunar tide observed with meteor radar at three latitudes in Brazil
Using meteor radar data from three Brazilian sites [São João do Cariri (7.4° S ; 36.5° W), Cachoeira Paulista (22.7° S; 45.0° W) and Santa Maria (29.7° S; 53.8° W)], the atmospheric semidiurnal lunar tide in the mesosphere and lower thermosphere was studied from January 2005 to December 2008. Monthly tidal amplitudes and phases were determined using
Publicado em: 2010
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5. Maré lunar observada com radar meteórico em três latitudes no Brasil / Lunar tide observed with meteor radar at three latitudes in Brazil
Usando dados de radares meteóricos de três localidades brasileiras [São João do Cariri (7,4° S ; 36,5° W), Cachoeira Paulista (22,7° S; 45, 0° W) e Santa Maria (29,7° S; 53, 8° W)] foi possível estudar a maré lunar atmosférica semidiurna na região da mesosfera e baixa termosfera para o período de janeiro de 2005 a dezembro de 2008. Para determ
Publicado em: 2010
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6. Study of winds from 80 to 100km by meteorradar at Santa Maria (29,7°S;53,8°O) Region / Estudo dos ventos entre 80 e 100 km utilizando radar meteórico na região de Santa Maria (29,7°S; 53,8°O)
The present work deals with prevailing winds and atmospheric solar tides from 80 to 100 km, measured by SKiYMET meteor radar at Santa Maria (29,7°S; 53,8°W). This is the first detailed study using the Santa Maria SKiYMET data. The data period used for this analysis is the three years of observation 2005 to 2007. Monthly and annual analyses are made to inve
Publicado em: 2008
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7. Estudo dos ventos entre 80 e 100 km utilizando radar meteórico na região de Santa Maria (29,7°S; 53,8°O) / Study of winds from 80 to 100km by meteorradar at Santa Maria (29,7°S;53,8°O) Region
O presente trabalho é direcionado à análise dos ventos dominantes e marés atmosféricas solares, entre 80 e 100 km de altura, usando o radar meteórico SKiYMET instalado em Santa Maria (29,7°S; 53,8°O). Este é o primeiro estudo detalhado dos dados coletados pelo radar SkiYMET - Santa Maria. O período utilizado na pesquisa foi constituído pelos três
Publicado em: 2008
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8. Diurnal tide variability in the region between 80 and 100 km heigth over Cachoeira Paulista (22.7°S, 45°W) / Variabilidade de Maré diurna na região de 80-100 km de altitude sobre Cachoeira Paulista (22,7°S; 45°0)
Six year of data collected by a SkYmet meteor radar were used to study the tidal seasonal and the day-to-day variabilities. The tidal seasonal variability has a well known climatology and has been studied for long years. At contrary, the tidal day-to-day variability is not well known and its producing mechanisms are not completely explained. Probably this va
Publicado em: 2007
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9. Variabilidade de Maré diurna na região de 80-100 km de altitude sobre Cachoeira Paulista (22,7°S; 45°0) / Diurnal tide variability in the region between 80 and 100 km heigth over Cachoeira Paulista (22.7°S, 45°W)
Seis anos de dados coletados pelo radar meteórico SkiYmet foram utilizados para estudar a variabilidade sazonal e a variabilidade dia-a-dia da maré diurna. A variabilidade sazonal tem uma climatologia bem conhecida e tem sido estudada há vários anos. A variabilidade dia-a-dia, entretanto ainda é pouco conhecida e os seus mecanismos de produção ainda n
Publicado em: 2007
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10. Estudo de frentes mesosféricas na região equatorial / Study of mesospheric fronts in the equatorial region
An extensive study on mesospheric fronts was carried out by means of mesospheric airglow image observation at at São João do Cariri, PB (7,4oS; 36,5oW) from July 2004 to December 2005. All sky airglow images, meteor radar wind and TIMED/SABER satellite temperature data were used in order to investigate physical scenario of the mesospheric front. Three diff
Publicado em: 2007
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11. Técnica de Navegação de um Robô Móvel Baseado em um Sistema de Visão para Integrá-lo em uma Célula Flexível de Manufatura (FMC) / Mobile robot navigation technique based in vision system for integrate it to a flexivel manufacturing cell (FMC)
Nowadays, the control of the automatic guided vehicles (AGV), is based on the study of different navigation existing techniques. Those utilize different kinds of sensors (infrared, ultrasound, tactile, vision, etc) as part of the equipment included in the mobile robot carrying out their tasks of movement and control since an initial position to a defined fin
Publicado em: 2006
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12. Metabolism of Tritiated Gibberellin A9 by Shoots of Dark-grown Dwarf Pea, cv. Meteor 1
Tritium-labeled gibberellin A9 (3H-GA9) was metabolized by etiolated shoots of dwarf pea (Pisum sativum cv. Meteor) to GA20, GA10, 2,3-dihydro-GA31, and a number of highly polar, acidic GA-like substances. Identifications were made by gasliquid radiochromatography and combined gas chromatography-mass spectrometry. Kinetic studies showed that GA30 and 2,3-dih