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La0.5Sm0.5FeO3: a new candidate for magneto-electric coupling at room temperature
(2017-07-01)
Samarium substituted lanthanum orthoferrite La0:5Sm0:5FeO3 thin film has been prepared by soft chemical method. A single perovskite phase with orthorhombic crystallographic structure was attained. Magnetic and ferroelectric ...
Electrical characterization of in situ polymerized polyaniline thin films
(Elsevier B.V., 2007-10-25)
The alternating conductivity, sigma*(f) = sigma'(f) + i sigma ''(f), of in situ polymerized polyaniline thin films doped with hydrochloric acid, deposited on top of an interdigitated gold line array previously deposited ...
Diseño y simulación electrostática de electrodos interdigitales para determinación de capacidad usando varios dieléctricos
(2023)
In the simulator we choose a new model where the 2D space dimension was selected, and the chosen physics is electrostatics where the study is stationary. It was possible to design and simulate the interdigital electrodes ...
Variation of the gain through coupling networks of Narrow Band Amplifiers
(2006)
Variable gain microwave amplifiers are widely used today. A new method for the variation of gain is presented for narrow band microwave amplifiers. The technique is based on the variation of inductance and capacitance in ...
Studies of current sheath evolution in a small plasma focus device
(IET, 1996)
We present preliminary time and space resolved studies of current sheath formation in Plasma Focus discharges, using a novel array of non invasive magnetic field probes. The experiments are performed in a Mather type plasma ...
The effect of pH in the adsorption of Alizarin and Eriochrome Blue Black R onto iron oxides
(Elsevier Science, 2009)
Algoritmos de proteção de distância para linhas de transmissão longas paralelas equilibradas
(Universidade Federal de Minas GeraisBrasilENG - DEPARTAMENTO DE ENGENHARIA ELÉTRICAPrograma de Pós-Graduação em Engenharia ElétricaUFMG, 2020-06-16)
This doctoral dissertation proposes novel first-zone distance protection algorithms adequate for balanced long parallel transmission lines connected to either common or independent buses at both ends. The proposed algorithms ...
Design and simulation of an accelerometer with improved sensitivity response
(Universidad del ValleColombia, 2016-07-08)
(Eng) The capacitive accelerometers based on microelectromechanical systems (MEMS), are widely used in the automotive
industry, in seismic detection, and in military applications. The sensitivity is one of their main ...
Fundamentos teóricos para el cálculo de los parámetros técnicos de las líneas eléctricas aéreas de baja tensión para su uso en telecomunicaciones
(Universidad Nacional de Colombia - Facultad de Ingeniería, 2009)
Este artículo presenta las propiedades de las redes de energía eléctrica para su utilización como canales para la transmisión de señales de telecomunicaciones. Comienza explorando los principios y fundamentos teóricos ...