Power Lines
Mostrando 13-24 de 218 artigos, teses e dissertações.
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13. Development of a managerial tool for prioritization and selection of portfolio projects using the Analytic Hierarchy Process methodology in software companies
Resumo Este estudo apresenta uma ferramenta gerencial de priorização e seleção de portfólio de projetos de desenvolvimento de software utilizando a metodologia Analytic Hierarchy Process (AHP). A necessidade de melhores resultados com recursos escassos é um desafio às organizações para gerar vantagem competitiva. A ferramenta é estruturada de acor
Gest. Prod.. Publicado em: 23/09/2019
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14. Língua Mata Virgem Brasílica: um perspectivismo dos saberes transversos
Resumo: Apresenta-se um conjunto de recorrências discursivas em torno do problema da exterioridade americana, evidenciando linhas de força de um imaginário e de uma linguagem que constituem dispositivos coloniais. Como estratégia metodológica, assinala-se modos pelos quais a imagem da Imaculada Conceição é dada numa fulguração figurativa, rompendo
Rev. Bras. Estud. Presença. Publicado em: 25/03/2019
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15. Una revisión histórica de las violencias contra mujeres
Abstract Violence is a strategic weapon to achieve power and the division of subjects into capital objectives. The past violence has been changing little, and now they have been magnified and expanded thanks to the invisible violence. The aim is to investigate the socio-historical-cultural aspects that influence the practice of violence against women in con
Rev. Direito Práx.. Publicado em: 2019-03
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16. Brazilian Hybrid Security in South America
Abstract Existing research on security governance in South America functions on dichotomous lines. Analysis of Brazil’s security practices is a case in point. On the one hand, scholars point out the balance of power and hegemonic institutions as the main discourse in the security practices between Brazil and its South American neighbors. On the other hand,
Rev. bras. polít. int.. Publicado em: 19/10/2017
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17. Broadband Equal Power Divider
Abstract This paper presents the design of broadband two way equal power divider in microstrip medium with defected ground structure suitable for broadband communication systems. Quarter wave broadside coupled lines are used in the place of conventional transformers widely used in the popular Wilkinson power dividers. The proposed power divider structure tak
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2017-04
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18. The Smart Grid Concept in Oil & Gas Industries by a Field Trial of Data Communication in MV Power Lines
Abstract Nowadays, communication and networking technologies are essential for Oil & Gas industries in order to guarantee reliability, safety and low costs in the producing process. Information access and commands and set-points transmission from/to automation systems are challenging tasks mainly due to distributed production areas and hostile environments.
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2016-06
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19. Exposure to 50 Hz electromagnetic field changes the efficiency of the scorpion alpha toxin
AbstractBackground Extremely low-frequency (50 Hz) electromagnetic field (ELF-EMF) is produced by electric power transmission lines and electronic devices of everyday use. Some phenomena are proposed as “first effects” of ELF-EMF: the discrete changes in the membrane potential and the increase of the calcium channel activity as well as the intracellular
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 20/10/2015
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20. Numerical Simulation of Hot Closed Die Forging of a Low Carbon Steel Coupled with Microstructure Evolution
Hot closed die forging is a regular process applied to manufacture metallic components used in supporting and fixing cable conductors in electric power transmission lines. In this forming process, the final microstructure of the workpiece depends on the control of several processing parameters. In this study, simulation of the industrial forging process of a
Mat. Res.. Publicado em: 2015-02
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21. Antimicrobial, Antioxidant and Cytotoxic Activity of MarineStreptomyces parvulus VITJS11 Crude Extract
The main aim of the study was to evaluate the bioactive properties of ethyl acetate crude extract of Streptomyces parvulus VITJS11 with a view to assess their therapeutic potential. The biological activity of ethyl acetate extract was tested against fungal and bacterial pathogens. The free radical scavenging potential of the crude extract was determined by D
Braz. arch. biol. technol.. Publicado em: 14/10/2014
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22. The Concept of Liberty: the Polemic between the Neo-Republicans and Isaiah Berlin
This article offers an analysis of the polemic between neo-republicanism and Isaiah Berlin on the concept of liberty. Neo-republican theory argues that Berlin's concept of liberty allows arbitrary power to emerge, and that the characteristically negative association between intervention and liberty in his argument should be dispelled. This article points out
Bras. Political Sci. Rev.. Publicado em: 2014-09
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23. Electromagnetic interference reduction by dynamic impedance balancing applied to biosensors
INTRODUCTION: Electromagnetic interference caused by electric power lines adversely affects the signals of electronic instruments, especially those with low amplitude levels. This type of interference is known as common-mode interference. There are many methods and architectures used to minimize the influence of this kind of interference on electronic instru
Rev. Bras. Eng. Bioméd.. Publicado em: 2013-09
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24. Laminated composite based on polyester geotextile fibers and polyurethane resin for coating wood structures
New environmental laws have restricted the use of hardwood trees in overhead power lines structures, such as, poles and cross-arms, leading companies to seek alternative materials. Reforested wood coated with polymeric resin has been proposed as an environmental friendly solution, with improved electrical properties and protection against external agents, e.
Mat. Res.. Publicado em: 21/06/2013