Temperature Sensor
Mostrando 1-12 de 182 artigos, teses e dissertações.
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1. A 2.4 GHz Coplanar Solar Cell Patch Antenna with a Semi-Analytical Evaluation of Temperature Effects
Abstract Solar cells integrated with antennas have aroused scientific interest as an attractive energy source alternative in low power devices for IoT and Wireless Sensor Network applications. Since the space for all components in the systems is scarce, different integration ideas have been proposed in this field. However, further analysis of the performance
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. EVALUATING HOW THE TEMPERATURE CHANGES IN A SUNKEN SOLAR GREENHOUSE
ABSTRACT An increasing amount of sunlight is available to sunken greenhouses located in northern China, but it remains unclear how the indoor temperature changes at different heights and at the north and south ends of the structure. To study how the temperature in a single indoor section, at multiple points, varies in a sunken solar greenhouse, 10 measuremen
Eng. Agríc.. Publicado em: 2021-05
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3. ACHPA: A sensor based system for automatic environmental control in hydroponics
Abstract The trend towards tunnel farming and hydroponic systems is increasing owing to the climatic changes as well as the need to increase crop yield. Hydroponic is a technique of growing plants without soil. Tunnel farming and hydroponic system requires controlled environmental parameters like temperature, humidity and soil moisture for better production
Food Sci. Technol. Publicado em: 2020-09
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4. The automatic selection of hydraulic spray nozzles based on the psychrometric air conditions in hydropneumatic sprayers
ABSTRACT The aim of the current study is to develop an electronic system capable of automatically replacing hydraulic spray nozzles, based on psychrometric air conditions such as temperature and relative air humidity, in order to help improving the efficiency of application technologies. The system comprised one microcontroller, two solenoid valves, one temp
Rev. Ceres. Publicado em: 2020-02
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5. ACHPA: A sensor based system for automatic environmental control in hydroponics
Abstract The trend towards tunnel farming and hydroponic systems is increasing owing to the climatic changes as well as the need to increase crop yield. Hydroponic is a technique of growing plants without soil. Tunnel farming and hydroponic system requires controlled environmental parameters like temperature, humidity and soil moisture for better production
Food Sci. Technol. Publicado em: 20/12/2019
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6. Thermal Dissipation Effect on Temperature-controlled Friction Stir Welding
Resumo Durante a Soldagem por Fricção linear (FSW) de geometrias complexas, a dissipação térmica, induzida por características geométricas ou pelo ambiente circundante, desempenha um papel importante na qualidade final da junta. Para garantir uma qualidade consistente em condições diferentes é necessário a adaptacão de parâmetros durante o proce
Soldag. insp.. Publicado em: 25/11/2019
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7. Phenological metrics of the grassland vegetation of Rio Grande do Sul, Brazil
RESUMO Considerando que o estudo da fenologia vegetal permite estabelecer relações entre o padrão fenológico da vegetação e as alterações causadas pela variabilidade climática, o objetivo deste trabalho foi obter métricas fenológicas para as tipologias de vegetação de pastagens predominantes no Rio Grande do Sul (latitudes 27º 05’ e 33º 45�
Rev. bras. eng. agríc. ambient.. Publicado em: 25/11/2019
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8. Analysis of Infestation of Nematode Meloidogyne exigua in a Rubber Tree Plantation in the Triângulo Mineiro Region
ABSTRACT This study analyzed the use of the water balance, precipitation, temperature and NDVI (Normalized Difference Vegetation Index) to determine the optimum moment for evaluating infestation by the nematode Meloidogyne exigua in a rubber tree plantation by remote sensing. Nineteen sampling points were defined, divided into three areas, with high and low
Floresta Ambient.. Publicado em: 30/09/2019
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9. Simulation and Prediction for a Satellite Temperature Sensors Based on Artificial Neural Network
ABSTRACT: Spacecrafts in space environment are exposed to several kinds of thermal sources such as radiation, albedo and emitted IR from the earth. The thermal control subsystem in spacecraft is used to keep all parts operating within allowable temperature ranges. A failure in one or many temperature sensors could lead to abnormal operation. Consequently, a
J. Aerosp. Technol. Manag.. Publicado em: 26/08/2019
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10. Modelagem da Temperatura do Ar na Região do Distrito Federal – Brasil, por meio de Dados Atmosféricos do Sensor AIRS
Resumo O sensoriamento remoto pode ser utilizado na estimativa de dados meteorológicos. A partir da utilização de imagens de variáveis atmosféricas obtidas pelo sensor AIRS (Atmospheric Infrared Sounder) a bordo do satélite Aqua, o presente estudo objetivou estimar as temperaturas máxima, mínima e média diária do ar na região do Distrito Federal �
Rev. bras. meteorol.. Publicado em: 05/08/2019
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11. Uso de VANT para Prospecção Eólica em Sistemas Aquáticos: Desenho Amostral e Avanços Instrumentais
Resumo O Projeto “uso de VANT para prospecção eólica em sistemas aquáticos” consistiu num esforço multi-instrumental e multi-institucional para estudar a camada limite atmosférica influenciada por extensos corpos d’água e pelas feições do entorno como colinas, rampas e mudanças abruptas de rugosidade. Dois trabalhos de campo foram conduzidos
Rev. bras. meteorol.. Publicado em: 05/08/2019
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12. Studies on Heat Flux Imparted on Thermal Insulation Inside Rocket Motor Containing Double Base Propellant
ABSTRACT Thermal insulation inside the rocket motor experience severe pressure and temperature conditions. Experimental determination of heat flux imparted to thermal insulator inside the rocket motor during the static firing is a challenging task. This paper reports experimental determination of heat flux for double base propellant (DBP) in small rocket mot
J. Aerosp. Technol. Manag.. Publicado em: 10/07/2019