Power Supply
Mostrando 1-12 de 275 artigos, teses e dissertações.
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1. Broadband Antennas Based on the Double Moebius Strip
Abstract The family of new antenna designs based on the double Moebius strip principle is proposed in this article. Three possible options of the power supply port location had been reviewed in this respect: the cut external strip with the signal port located directly in the cut area is used; the continuous rings without discontinuities are applied, with the
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. Relational attractiveness between supplier-customer in a supply chain
Abstract Purpose This study aims to evaluate the influence of factors attributed to relationship attractiveness between supplier and customer, from the supplier’s perspective. Design/methodology/approach The empirical exercise was based on the use of multivariate data analysis with confirmatory factor analysis and a partial least squares approach to stru
RAUSP Manag. J.. Publicado em: 2021-03
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3. TECHNICAL AND ECONOMIC FEASIBILITY OF USING A VARIABLE-FREQUENCY DRIVE IN MICRO-IRRIGATION SYSTEMS
ABSTRACT Irrigation is essential for the development of crops in regions with scarcity or irregular rainfall distribution, enabling high productivity. However, the use of water resources and electrical energy leads to a concern with irrigation efficiency. Pressure demand varies during the operations of irrigation systems and the appropriate pressure can be r
Eng. Agríc.. Publicado em: 2021-02
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4. A Novel Tri-bandpass Filter Side-coupled Square Ring Based
Abstract This work presents the design of a tri-bandpass filter based on the side-coupled square ring structure. The modeling is conceived from the classic approach of coupled transmission lines. The geometry consists of a square structure of electrical length equal to twice the wavelength of the main operating frequency, and the laterally coupled lines thro
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2020-06
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5. DAMS SAFETY INDEX (DSI): A REASSESSMENT OF THE PARAMETERS OF ANALYSIS
ABSTRACT Dams provide a water supply, irrigation and power generation. However, the economic, social and environmental impacts are serious when they rupture. It is important that dams continue to function properly and are constantly evaluated for their safety and functionality. Contrary to general belief, small dams are the ones that present the most problem
Eng. Agríc.. Publicado em: 09/12/2019
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6. Public Policies to Be Implemented to Encourage the Use of Renewable Energy Sources in the Rural Area of Paraná
Abstract Around the world there’s a rising interest in the installation of renewable energy sources due to their ecological, economical, political and social advantages. In this article is studied specifically the case of the incentive towards the installation of these sources in the state of Parana’s rural area, where they wouldn’t just be ecological
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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7. Mortality of primates due to roads and power lines in two forest patches in Bangladesh
ABSTRACT Primates are in imminent risk of extinction due to different types of anthropogenic activities. Mortality due to road accidents and electrocution from power lines are among the major direct anthropogenic threats to the survival of primates. We collected primate mortality data from 2015 to 2017 at Lawachara National Park and Satchari National Park in
Zoologia (Curitiba). Publicado em: 21/10/2019
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8. Aspectos institucionais da formação de preços
Resumo De acordo com a visão tradicional do processo de formação de preços, estes resultam das interações entre oferta e demanda. Um preço de equilíbrio é aquele no qual as quantidades demandadas se igualam às quantidades ofertadas. O sistema de preços fornece um mecanismo por meio do qual mudanças nas condições de oferta e demanda condicionam
Nova econ.. Publicado em: 10/10/2019
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9. IBERIAN DOMINANCE AND THE INTRUSION OF THE NORTHERN EUROPEANS INTO THE ATLANTIC WORLD: SLAVE TRADING AS A RESULT OF ECONOMIC GROWTH?
Abstract The British, French and, eventually, the Americans attract a disproportionate share of scholarly attention in the history of the Atlantic World before 1800. The impact of the St. Domingue revolution, British power in the nineteenth century, and the dominance of the American economy in the 20th and 21st centuries have ensured that historians fail to
Almanack. Publicado em: 16/09/2019
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10. Sustentabilidade em edifício residencial no município de Dourados, MS
Resumo: Este trabalho apresenta dois sistemas alternativos dimensionados para um edifício residencial, já concluído, com o intuito de suprir o consumo de água e energia elétrica nas áreas comuns. O primeiro sistema capta água da chuva para posterior utilização com fins não potáveis. No segundo sistema, de geração de energia solar fotovoltaica in
Interações (Campo Grande). Publicado em: 08/08/2019
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11. Desenvolvimento e Avaliação de uma Tocha de Soldagem Inteligente
Resumo A soldagem de estruturas destinadas à construção naval em estaleiros é realizada, em sua maioria, de forma manual no cenário brasileiro. Assim como em qualquer aplicação, nesta os parâmetros de soldagem devem ser ajustados conforme a posição de soldagem a fim de garantir a qualidade desejada da união. Todavia, na prática o que se observa �
Soldag. insp.. Publicado em: 15/07/2019
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12. Solar photovoltaic energy applied to ferroalloy industry
Abstract The Brazilian ferroalloy industry faces a highly competitive scenario in the foreign market. Among the key factors to determine the price of its products, electric energy stands out as one of the main inputs. So, the possibility of energy being unavailable or having high prices causes a direct impact in the ferroalloy chain. On the other hand, the r
REM, Int. Eng. J.. Publicado em: 2019-06