Listar por autor "Cejas, Ezequiel"
Mostrando ítems 1-16 de 16
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Ambient Species Density and Gas Temperature Radial Profiles Derived from a Schlieren Technique in a Low Frequency Non-thermal Oxygen Plasma Jet.
Chamorro, Juan Camilo; Prevosto, Leandro; Cejas, Ezequiel; Kelly, Héctor; Mancinelli, Beatriz; Fischfeld, Gerardo (2017)A quantitative interpretation of the schlieren technique applied to a non-thermal atmospheric-pressure oxygen plasma jet driven at low-frequency (50 Hz) is reported. The jet was operated in the turbulent regime with a ... -
Cathode-sheath model for field emission sustained atmospheric pressure discharges
Cejas, Ezequiel; Prevosto, Leandro; Minotti, Fernando; Ferreyra, Matías; Chamorro, Juan Camilo; Fina, Brenda (2021)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 ... -
Cathode-sheath model for field emission sustained atmospheric pressure discharges.
Cejas, Ezequiel; Prevosto, Leandro; Minotti, Fernando Oscar; Ferreyra, Matías; Chamorro, Juan Camilo (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 ... -
Desarrollo de una diagnóstica refractiva para el estudio de plasmas no-térmicos de alta presión.
Cejas, Ezequiel (UTN FRVT, 2017-03-09)Este Proyecto Final consiste en la interpretación cuantitativa de la técnica Schlieren aplicada a un jet de plasma no térmico, cuasi-estacionario (50 Hz), y a presión atmosférica. El jet fue operado en régimen turbulento ... -
Detección temprana de fractura de hueso escafoides en carpo.
Biana, María Julieta; Peperno Venessio, Soledad; Reniero, Betiana (UTN FRVT, 2023-09-11)Se reportan los métodos diagnósticos con mayor especificidad para el diagnóstico de una fractura de escafoides, los cuales permitan la evaluación de fracturas inadvertidas tales que puedan ocasionar futuras complicaciones. ... -
Effects of non-thermal plasma technology on Diaporthe longicolla cultures and mechanisms involved.
Pérez Pizá, María Cecilia; Grijalba, Pablo Enrique; Cejas, Ezequiel; Chamorro, Juan Camilo; Ferreyra, Matías; Zilli, Carla; Vallecorsa, Pablo; Yannarelli, Gustavo; Prevosto, Leandro; Balestrasse, Karina; Santa Cruz, Diego (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 ... -
Effects of non–thermal plasmas on seed-borne Diaporthe/Phomopsis complex and germination parameters of soybean seeds.
Pérez Pizá, María Cecilia; Prevosto, Leandro; Zilli, Carla; Cejas, Ezequiel; Kelly, Héctor; Balestrasse, Karina (2018)Diaporthe/Phomopsis (D/P) is a complex of seed-borne fungi that severely affects soybean (Glycine max (L.) Merrill), one of the most important crops worldwide. Non-thermal plasma treatment is a fast, economic and ... -
Enhancement of soybean nodulation by seed treatment with non–thermal plasmas
Pérez Pizá, María Cecilia; Cejas, Ezequiel; Zilli, Carla; Prevosto, Leandro; Mancinelli, Beatriz; Santa Cruz, Diego; Yannarelli, Gustavo; Balestrasse, Karina (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 ... -
Factores predisponentes relacionados con hábitos de vida en el diagnóstico de osteoporosis en mujeres adultas de la región de Arias (Cba).
Coello, Jésica Mariel; Stolle, Fátima (UTN FRVT, 2022-12)Las fracturas osteoporóticas son un importante problema de salud mundial, convirtiéndose en una importante carga económica y social. Se determinó la densidad mineral ósea (DMO) a nivel de cadera y columna lumbar aplicando ... -
Glow Discharge in a High-Velocity Air Flow: The Role of the Associative Ionization Reactions Involving Excited Atoms.
Cejas, Ezequiel; Mancinelli, Beatriz; Prevosto, Leandro (2019)A kinetic scheme for non-equilibrium regimes of atmospheric pressure air discharges is developed. A distinctive feature of this model is that it includes associative ionization with the participation of N(2D, 2P) atoms. ... -
Improvement of growth and yield of soybean plants through the application of non-thermal plasmas to seeds with different health status.
Pérez Pizá, María; Prevosto, Leandro; Grijalba, Pablo; Zilli, Carla; Cejas, Ezequiel; Mancinelli, Beatriz; Balestrasse, Karina (2019)Soybean (Glycine max (L.) Merrill) is a globally important crop, providing oil and protein. Diaporthe/Phomopsis complex includes seed-borne pathogens that affect this legume. Non-thermal plasma treatment is a fast, ... -
Métodos complementarios para la detección precoz del cáncer de mama.
González, María Eugenia; Faraone Berlingeri, Amorina (UTN FRVT, 2022-11-04)El cáncer de mama es un problema de alta relevancia en la salud de las mujeres argentinas dado que representa la primera causa de muerte por tumores. El diagnóstico temprano de la patología empleando métodos complementarios ... -
Modelling of an Atmospheric–Pressure Air Glow Discharge Operating in High–Gas Temperature Regimes: The Role of the Associative Ionization Reactions Involving Excited Atoms.
Cejas, Ezequiel; Prevosto, Leandro; Mancinelli, Beatriz (2020)A model of a stationary glow-type discharge in atmospheric-pressure air operated in high-gas-temperature regimes (1000 K < Tg < 6000 K), with a focus on the role of associative ionization reactions involving N(2D,2P)-excited ... -
On the physical processes ruling an atmospheric pressure air glow discharge operating in an intermediate current regime
Prevosto, Leandro; Kelly, Héctor; Mancinelli, Beatriz; Chamorro, Juan Camilo; Cejas, Ezequiel (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 ... -
Plasma Cutting of Concrete: Heat Propagation and Molten Material Removal From the Kerf.
Chamorro, Juan Camilo; Prevosto, Leandro; Cejas, Ezequiel; Milardovich, Natalio; Mancinelli, Beatriz; Fischfeld, Gerardo (2019)An experimental investigation of heat propagation in the case of plasma cutting of concrete is reported. The experiments were carried out by using a high-enthalpy nitrogen plasma jet generated in a dc vortex-stabilized ... -
Quantitative Schlieren Diagnostic Applied to a Nitrogen Thermal Plasma Jet.
Chamorro, Juan Camilo; Prevosto, Leandro; Cejas, Ezequiel; Kelly, Héctor (2018)— A quantitative interpretation of the schlieren technique applied to an atmospheric pressure, vortex-stabilized nitrogen thermal plasma jet generated in a direct-current nontransferred arc plasma torch (nitrogen gas ...