FRVT - Artículos en Revistas: Materiales subidos recientemente
Mostrando ítems 41-58 de 58
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On the Use of Sweeping Langmuir Probes in Cutting Arc Plasmas—Part I: Experimental Results.
(2008)The first study of Langmuir probes applied to cut ting arcs using a sweeping-probe system is presented. It is found that, under a relatively broad range of experimental conditions (changes in the probe material, in the ... -
On the use of the metallic nozzle of a cutting arc torch as a Langmuir probe.
(2008)The region inside the nozzle (bore diameter ≈1 mm) of a cutting arc torch is inaccessible to most plasma diagnostics, and numerical simulations are the only means to find out the relative importance of several physical ... -
On the physical origin of the nozzle characteristic and its connection with the double-arcing phenomenon in a cutting torch.
(2009)The nozzle current-voltage characteristic for a cutting arc is presented in this work. The measurements are reported using a high energy density cutting arc torch with a nozzle bore radius of 0.5 mm. The arc current was ... -
An Interpretation of Langmuir Probe Floating Voltage Signals in a Cutting Arc.
(2009)An experimental study of the electrostatic probe floating voltage signals in a cutting arc and its physical interpre tation in terms of the arc plasma structure is reported. Sweeping electrostatic probes have been used ... -
On the space-charge boundary layer inside the nozzle of a cutting torch.
(2009)A numerical study of the space-charge sheath adjacent to the nozzle wall of a cutting torch is presented. The hydrodynamic model corresponds to a collision-dominated sheath and does not assume cold ions, so drift-diffusion-type ... -
Medición de humedades en madera con Xilohigrómetros, comparación y corrección.
(edUTecNe, 2013)El trabajo presenta la comparación de mediciones de humedad en la madera de dos xilohigrómetros diferentes con la real obtenida según lo estipula la norma IRAM 9532, para determinar el error de su lectura y obtener una ... -
Normalización de la madera pino Ponderosa.
(2020)El pino ponderosa, la especie forestal más plantada en Norpatagonia, acaba de ser incorporada en los Suplementos del Reglamento Argentino de Estructuras de Madera (INTI-CIRSOC 601) y por lo tanto tiene el aval normativo ... -
Relación entre el módulo de elasticidad global y local de elementos estructurales de Populus Deltoides Australiano 129/60 y Stoneville 67 cultivados en Argentina.
(2021-04)En este trabajo se compara el valor del módulo de elasticidad local obtenido experimentalmente, con el determinado teóricamente de acuerdo a tres criterios reconocidos internacionalmente (UNE-EN 384 2016, INTI-SIRSOC 2016 ... -
Influencia de las dimensiones de la sección transversal sobre la resistencia a flexión en madera aserrada de Populus Deltoides cultivado en Argentina.
(2016)En el artículo se analiza el efecto de las dimensiones de la sección transversal sobre la resistencia a flexión en piezas de madera aserrada de Populus deltoides ‘Australiano 129/60’ y ‘Stoneville 67’, cultivados en ... -
Enhancement of soybean nodulation by seed treatment with non–thermal plasmas
(2020-03-18)Soybean (Glycine max (L.) Merrill) is one of the most important crops worldwide providing dietary protein and vegetable oil. Most of the nitrogen required by the crop is supplied through biological N2 fxation. Non-thermal ... -
Effects of non-thermal plasma technology on Diaporthe longicolla cultures and mechanisms involved.
(2021-01-05)BACKGROUND: The Diaporthe/Phomopsis complex (D/P) is a group of soybean seed-borne fungi. The use of chemical fungicides, either for seed treatment or during the crop cycle, is the most adopted practice for treating fungal ... -
Cathode-sheath model for field emission sustained atmospheric pressure discharges.
(2021-03-16)The cathode-sheath region of a discharge in atmospheric pressure air with a flat copper cathode is numerically investigated by using a simple fluid model that takes into account non-local ionization. The effects of the ... -
On the use of the Prandtl mixing length model in the cutting torch modeling.
(2011-05-25)The Prandtl mixing length model has been used to take into account the turbulent effects in a 30 A high-energy density cutting torch model. In particular, the model requires the introduction of only one adjustable coefficient ... -
Correlation methods in cutting arcs
(IOPscience, 2011-05-25)The present work applies similarity theory to the plasma emanating from transferred arc, gas-vortex stabilized plasma cutting torches, to analyze the existing correlation between the arc temperature and the physical ... -
On the dynamics of cutting arc plasmas: the role of the power supply ripple
(ADVANCED ELECTROMAGNETICS, 2012-08)The power sources used in cutting arc torches are usually poorly stabilized and have a large ripple factor. The strong oscillatory components in the voltage and arc current produce in turn, large fluctuations in the plasma ... -
Langmuir probe diagnostics of an atmospheric pressure, vortex–stabilized nitrogen plasma jet
(2012-09-19)Langmuir probe measurements in an atmospheric pressure direct current (dc) plasma jet are reported. Sweeping probes were used. The experiment was carried out using a dc non–transferred arc torch with a rod–type cathode ... -
On the physical processes ruling an atmospheric pressure air glow discharge operating in an intermediate current regime
(2015-02-06)Low-frequency (100 Hz), intermediate-current (50 to 200 mA) glow discharges were experimentally investigated in atmospheric pressure air between blunt copper electrodes. Voltage–current characteristics and images of the ...