Angular Velocity
Mostrando 1-12 de 84 artigos, teses e dissertações.
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1. Fertilizer deposition as a function of angular velocity and inclination of the helical dosing mechanism
RESUMO O estabelecimento de lavouras de grãos no Brasil é um importante processo industrial na cadeia agrícola, exigindo a correta deposição do fertilizante granulado no sulco de semeadura e avaliações mais eficientes, precisas e sustentáveis na operação, que podem ser obtidas com o controle estatístico do processo. Este estudo foi realizado com o
Revista Brasileira de Engenharia Agrícola e Ambiental. Publicado em: 2022
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2. A NOVEL RAISIN SEGMENTATION ALGORITHM BASED ON DEEP LEARNING AND MORPHOLOGICAL ANALYSIS
ABSTRACT We propose a segmentation algorithm for raisin extraction. The proposed approach consists of the following aspects. Deep learning is used to predict the number of raisins in each connected region, and the shape features such as the roundness, area, X-axis value for the centroid, Y-axis value for the centroid, axis length and perimeter of each region
Eng. Agríc.. Publicado em: 04/11/2019
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3. Muscle strength training program in nonagenarians – a randomized controlled trial
RESUMO OBJETIVO: O objetivo do estudo é melhorar a capacidade funcional e a qualidade de vida (QV) de nonagenários por meio da implementação de um programa de treinamento aeróbico e de força individualizado em um centro geriátrico residencial. DESENHO DO ESTUDO: Estudo controlado randomizado. METODOLOGIA: Vinte e seis mulheres idosas foram randomiz
Rev. Assoc. Med. Bras.. Publicado em: 22/07/2019
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4. Comparação entre pico de torque e flexibilidade dos membros inferiores de indivíduos com e sem diabetes mellitus tipo 2
RESUMO O objetivo deste trabalho foi comparar o pico de torque e flexibilidade dos membros inferiores de indivíduos com e sem diabetes mellitus tipo 2 (DM2). O método foi o estudo com grupos expostos e não expostos ao DM2. Foram incluídos indivíduos com diagnóstico médico de DM2, encaminhados para eletroneuromiografia, e não expostos ao DM2. Foram ex
Fisioter. Pesqui.. Publicado em: 18/07/2019
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5. 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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6. Satellite Inertia Parameters Estimation Based on Extended Kalman Filter
ABSTRACT: The moment of inertia parameters play a critical role in assuring the spacecraft mission throughout its lifetime. However, determination of the moment of inertia is a key challenge in operating satellites. During satellite mission, those parameters can change in orbit for many reasons such as sloshing, fuel consumption, etc. Therefore, the inertia
J. Aerosp. Technol. Manag.. Publicado em: 28/03/2019
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7. Caloric test and video head impulse test sensitivity as vestibular impairment predictors before cochlear implant surgery
OBJECTIVES: Currently, cochlear implant procedures are becoming increasingly broad and have greatly expanded. Bilateral cochlear implants and cochlear implants are more frequently applied in children. Our hypothesis is that the video head impulse test may be more sensitive than the caloric test in detecting abnormal vestibular function before cochlear impla
Clinics. Publicado em: 14/03/2019
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8. Design of Attitude Control Servomechanisms with Fluid Ring and CMG for Rigid Satellite
ABSTRACT: Satellites cover a wide range of space missions as remote sensing. Accomplishment of the mission depends on satellite's stability maintenance and direction. The main task of the attitude control system is to provide stability to the satellite against external disturbances. Such perturbations are caused due to aerodynamic drag, solar radiation and m
J. Aerosp. Technol. Manag.. Publicado em: 08/11/2018
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9. Dynamic analysis of gun barrel vibrations due to effect of an unbalanced projectile considering 2-D transverse displacements of barrel tip using a 3-D element technique
Abstract In this paper, dynamic analysis of two different weapon systems (35 mm Anti-Aircraft Barrel (AAB) and 120 mm Grooved Tank Barrel (GTB)) under the effect of statically unbalanced projectile has been performed with a new 12 DOF 3-D element technique using Finite Element Method (FEM). The muzzle deviations, which negatively affect the barrel shooting a
Lat. Am. j. solids struct.. Publicado em: 06/08/2018
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10. Reducing the Effects of Inaccurate Fault Estimation in Spacecraft Stabilization
ABSTRACT Reference Governor is an important component of Active Fault Tolerant Control. One of the main reasons for using Reference Governor is to adjust/modify the reference trajectories to maintain the stability of the post-fault system, especially when a series of actuator faults occur and the faulty system can not retain the pre-fault performance. Fault
J. Aerosp. Technol. Manag.. Publicado em: 2017-12
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11. The ITASAT CubeSat Development and Design
ABSTRACT: Because they are inexpensive platforms for satellites, CubeSats have become a low-cost way for universities and even developing countries to have access to space technology. This paper presents the ITASAT design, particularly the Attitude Determination and Control Subsystem, the Onboard Software, and the Assembly, Integration and Testing program. T
J. Aerosp. Technol. Manag.. Publicado em: 2017-06
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12. An Investigation on the Deformation Heating in Billet and Die During Equal-Channel Angular Pressing and High-Pressure Torsion
This work aims to investigate the temperature rise in Aluminum alloy 6061 due to deformation heating in equal channel angular pressing (ECAP) and high-pressure torsion (HPT) processes using finite element method. The roles of various parameters are investigated and the heating of ECAP die due to billet deformation is included in the simulations. The results
Mat. Res.. Publicado em: 19/04/2016