Fluctuation Effects
Mostrando 1-12 de 69 artigos, teses e dissertações.
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1. Effects of the Photovoltaic Distributed Generation on Electricity Distribution System Voltage - Updated Review
ABSTRACT Concerns about the environment and a growing demand for electricity have led to the intensive search for renewable energy sources. Photovoltaic solar energy, in the form of distributed generation, has shown a very high growth rate to an extent that in some regions it will be adopted on a large scale, thus being responsible for the supply of a signif
Braz. arch. biol. technol.. Publicado em: 22/10/2018
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2. Efectos socioterritoriales en Chile del súper ciclo de los commodities y de su término
Abstract Commodities’ economic cycles affect emerging economies and have different impacts on their diverse subnational territories and social sectors, as some are more vulnerable than others. In this article, we investigate the social-geographical effects of the commodities’ super cycle and of its end in Chile. In addition, we evaluate poverty reduction
Cad. Metrop.. Publicado em: 2017-04
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3. Contribution of the IAM Pathway to IAA Pool in Developing Rice Grains
A possible role for the indole-3-acetamide (IAM) pathway in the indole-3-acetic acid (IAA) production was investigated in developing rice grains. IAM-hydrolase proposed to convert IAM to IAA primarily through the identification of IAM and IAM-hydrolase activity in some plant species. Expression profiles of the two putative rice IAM-hydrolase genes, OsAMI1&2,
Braz. arch. biol. technol.. Publicado em: 06/05/2016
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4. Long-term correlation of the electrocorticogram as a bioindicator of brain exposure to ionizing radiation
Understanding the effects of radiation and its possible influence on the nervous system are of great clinical interest. However, there have been few electrophysiological studies on brain activity after exposure to ionizing radiation (IR). A new methodological approach regarding the assessment of the possible effects of IR on brain activity is the use of line
Braz J Med Biol Res. Publicado em: 12/06/2015
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5. Effects of Two Different Cyclic Heat Treatments on Microstructure and Mechanical Properties of Ti-V Microalloyed Steel
In this work the effects of two different cyclic heat treatments (traditional route and new-designed route, named as Route 1 and Route 2, respectively) on microstructure and mechanical properties of Ti-V microalloyed steel were investigated. The results showed that the mean grain size initially decreased on execution of 1-cycle (~13.9 μm) and then remained
Mat. Res.. Publicado em: 2015-04
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6. PROCESSAMENTO, CARACTERIZAÇÃO E ESTUDO DOS FENÔMENOS CRÍTICOS NO SUPERCONDUTOR (Gd1 xCex)Ba2Cu3O7- δ
This work presents a systematic study of the effects of CeO2 addition to the superconductor system (Gd1-xCex)Ba2Cu3O7δ, with 0,0 x 0,05, in polycrystalline form. Samples were obtained following the solid state reaction standard technique in which high purity chemical precursors (99,99%) were employed, Gd2O3, CeO2, BaCO3 and CuO. For the structural chara
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/03/2012
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7. Reconhecimento de PadrÃes AtravÃs de AnÃlises EstatÃsticas e Fractais Aplicadas a Dados de Ensaios NÃo-Destrutivos / Pattern Recognition by Statistical Fluctuation and Fractal Analyses Applied to Nondestructive Testing Data
In this work a procedure is studied for pattern classification related to different types of data, namely: (1) signals obtained from ultrasonic testing ( pulse-echo technique) and magnetic signals obtained from BarkhÃusen noise in samples of ferritic-pearlitic carbon steel tubes which, due to temperature effects, have shown microstructural changes as conseq
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/12/2011
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8. A compact model of MOSFET mismatch for circuit design
This paper presents a compact model for MOS transistor mismatch. The mismatch model uses the carrier number fluctuation theory to account for the effects of local doping fluctuations along with an accurate and compact dc MOSFET model. The resulting matching model is valid for any operation condition, from weak to strong inversion, from the linear to the satu
Publicado em: 2011
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9. PROCESSAMENTO, CARACTERIZAÇÃO E ESTUDO DE FENÔMENOS CRÍTICOS NOS SISTEMAS SUPERCONDUTORES (Er,Gd)1−xPrxBa2Cu3O7 / PROCESSAMENTO, CARACTERIZAÇÃO E ESTUDO DE FENÔMENOS CRÍTICOS NOS SISTEMAS SUPERCONDUTORES (Er,Gd)1−xPrxBa2Cu3O7
Neste trabalho foram estudados os efeitos das flutuações térmicas na condutividade elétrica de amostras policristalinas com base nos supercondutores Er1xPrxBa2Cu3O7 e Gd1xPrx Ba2Cu3O7. A quantidade de Pr considerada foi x = 0, 00, 0, 05 e 0, 10. As amostras foram preparadas pela técnica padrão de reação de estado sólido e caracterizadas por microsco
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/11/2010
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10. Efeitos cosmológicos induzidos por campos quantizados / Cosmological effects induced by quantized fields
The present dissertation reviews the coupling of a scalar non-interacting quantum field with the metric of a FLRW(Friedmann-Lemaítre-Robertson-Walker) spacetime, proposed in a work by C. Dappiaggi, K. Fredenhagen and N. Pinamonti. We present methods for the quantization of a real Klein-Gordon field in globally hyperbolic spacetimes and discuss procedures fo
Publicado em: 2010
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11. Dynamical properties of a mutualism system in the presence of noise and time delay
The normalized correlation function C(s) and the associated relaxation time Tc of the mutualism system in the presence of noise and time delay are investigated. The effects of noise and time delay on C(s) and Tc for a mutualism system are discussed. Based on the numerical computation, it is found that: (i) The noise intensity D slows down the the fluctuation
Brazilian Journal of Physics. Publicado em: 2009-06
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12. Curva a termo para o risco de conversibilidade: uma abordagem utilizando o diferencial de juros / Convertibility risk yield curve: an approach using the interest spread
This paper has the purpose of explaining the fluctuation of the convertibility risk (spread) through an alternative to the commonly used on the literature, exchange rate parity differential (DPC) measurement. The Brazilian convertibility risk will be calculated as the differential between the interest rate in dollars paid in Brazil and interest rate in dolla
Publicado em: 2009