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Mostrando 1-12 de 58 artigos, teses e dissertações.
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1. Mecanismo causante de Acidente Vascular Cerebral Embólico na Cardiopatia Chagásica Crônica: Disfunção Autonômica, uma Hipótese de Trabalho
RESUMO O artigo tem como objetivo geral identificar o que é uma marca inovadora na perspectiva dos gestores de empresas do Triângulo Mineiro e descrever como eles administram as marcas inovadoras. Realizou-se um estudo de casos múltiplos com cinco empresas inovadoras de quatro setores econômicos: telecomunicações, tecnologia da informação, produtos q
Arq. Bras. Cardiol.. Publicado em: 2020-12
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2. Parâmetros da Hemodinâmica Central como Novos Biomarcadores de Risco Cardiovascular
RESUMO O artigo tem como objetivo geral identificar o que é uma marca inovadora na perspectiva dos gestores de empresas do Triângulo Mineiro e descrever como eles administram as marcas inovadoras. Realizou-se um estudo de casos múltiplos com cinco empresas inovadoras de quatro setores econômicos: telecomunicações, tecnologia da informação, produtos q
Arq. Bras. Cardiol.. Publicado em: 2020-12
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3. Inovação e Marcas: A Perspectiva dos Gestores em Estudo de Casos Múltiplos no Triângulo Mineiro
RESUMO O artigo tem como objetivo geral identificar o que é uma marca inovadora na perspectiva dos gestores de empresas do Triângulo Mineiro e descrever como eles administram as marcas inovadoras. Realizou-se um estudo de casos múltiplos com cinco empresas inovadoras de quatro setores econômicos: telecomunicações, tecnologia da informação, produtos q
BBR, Braz. Bus. Rev.. Publicado em: 2020-12
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4. Integrated Guidance and Control of Multiple Interceptor Missiles Based on Improved Distributed Cooperative Control Strategy
ABSTRACT In this study, an improved cooperative integrated guidance and control (IGC) design method is proposed based on distributed networks to address the guidance and control problem of multiple interceptor missiles. An IGC model for a leading interceptor is constructed based on the relative kinematic relations between missiles and a target and the kinema
J. Aerosp. Technol. Manag.. Publicado em: 02/05/2019
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5. A física na visão de Ernst Mach: De uma crítica a Newton às teorias gravitacionais
Resumo O presente trabalho possui como objetivo introduzir conceitos chave da filosofia da ciência do físico austríaco Ernst Mach, assim como analisar a sua influência sobre teorias gravitacionais. Para tal, mostraremos que ela culmina numa crítica à ideia de espaço absoluto de Newton. Essa crítica teve considerável influência sobre Albert Einstein
Rev. Bras. Ensino Fís.. Publicado em: 11/03/2019
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6. Relative State Transition Matrix Using Geometric Approach for Onboard Implementation
ABSTRACT In the present study relative state transition matrix was obtained. It matches the relative motion of 2 satellites while including the oblate perturbation. The used formulation applies the geometric approach and is in Cartesian frame. The relative state transition matrix uses absolute state transition matrix of individual satellites. Thereon, simpli
J. Aerosp. Technol. Manag.. Publicado em: 20/07/2017
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7. Dynamic Instability of Beams Under Tip Follower Forces Using Geometrically Exact, Fully Intrinsic Equations
Abstract In this study, the dynamic instability of beams under tip follower forces are considered. The beam is modeled by using the geometrically exact, fully intrinsic beam equations which is subjected to an inclined tip follower force. Generalized differential quadrature method is employed to solve the governing equations. The effect of different parameter
Lat. Am. j. solids struct.. Publicado em: 2016-12
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8. A Software-in-the-Loop Simulation Scheme for Position Formation Flight of Multicopters
ABSTRACT The cooperative control of small unmanned aerial vehicles such as the multicopters has been extensively investigated worldwide for functionality augmentation and cost reduction with respect to a single larger vehicle. The present paper proposes a software-in-the-loop simulation scheme for performance evaluation and demonstration of formation flight
J. Aerosp. Technol. Manag.. Publicado em: 2016-12
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9. Flutter Instability of Timoshenko Cantilever Beam Carrying Concentrated Mass on Various Locations
Abstract This paper presents effects of shear deformation on flutter instability of cantilever beam subject to a concentrated follower force. The discrete form of equation of motion is formulated based on the Lagrange. In the presented formulation, the beam is modeled using Timoshenko beam theory, and constant shear distribution through the thickness of the
Lat. Am. j. solids struct.. Publicado em: 2016-12
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10. Equilibrium pricing and ordering policies in a two-echelon supply chain in the presence of strategic customers
ABSTRACT This paper studying the impact of strategic customer behavior on decentralized supply chain gains and decisions, which includes a supplier, and a monopoly firm as a retailer who sells a single product over a finite two periods of selling season. We consider three types of customers: myopic, strategic and low-value customers. The problem is formulate
An. Acad. Bras. Ciênc.. Publicado em: 07/06/2016
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11. Effect of Uniformly Distributed Tangential Follower Force on the Stability of Rotating Cantilever Tube Conveying Fluid
Abstract In this paper, the Euler-Bernoulli beam model is used to predict the structural instability of rotating cantilever tubes conveying fluid and subjected to uniform distributed tangential compressive load. The governing equation of motion and boundary conditions of the system are derived using the Hamilton's principle. Then, Galerkin method is applied
Lat. Am. j. solids struct.. Publicado em: 2016-02
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12. Control of a Support Excitation Smart Beam Subjected to a Follower Force with Piezoelectric Sensors/Actuators
Abstract In this paper, an active control is used to suppress the flutter vibration of a support excitation beam subjected to a follower force, using piezoelectric sensors/actuators. The beam is fixed to a motion support from one end and the other end is subjected to a follower force. The governing equations of motion are derived based on the generalized fun
Lat. Am. j. solids struct.. Publicado em: 2015-12