Phenomenological Model
Mostrando 1-12 de 136 artigos, teses e dissertações.
-
1. ADSORPTION OF ATRAZINE IN RICE HUSK BIOCHARS: A PHENOMENOLOGICAL MODEL APPLIED TO EQUILIBRIUM AND KINETIC STUDIES
ABSTRACT Atrazine is an herbicide used to remove weeds in agricultural crops; however, because it is considered toxic, options for removing it from the environment are needed. Adsorption on biochar is an efficient technique for removing organic contaminants. In this study, the atrazine adsorption capacities of two biochars (BCA400 and BCA700) produced from r
Engenharia Agrícola. Publicado em: 2022
-
2. SUCROSE CRYSTALLIZATION: MODELING AND EVALUATION OF PRODUCTION RESPONSES TO TYPICAL PROCESS FLUCTUATIONS
Abstract This work describes a phenomenological model of the two-massecuite system for sucrose crystallization, developed using EMSO software. In most Brazilian sugarcane industries, sucrose crystallization is performed using this system. This process is considered to be a fundamental step in obtaining sugar of the desired quality and accounts for a substant
Braz. J. Chem. Eng.. Publicado em: 09/12/2019
-
3. Austenitic Grain Size Prediction in Hot Forging of a 20MnCr5 Steel by Numerical Simulation Using the JMAK Model for Industrial Applications
Yield strength and toughness in steels are directly associated with hot forging processes, especially by controlling austenitic grain size and cooling conditions. The phenomenological JMAK model in macroscale has been applied in different material classes to predict grain size after hot forming. However, on an industrial application, there is still a lack of
Mat. Res.. Publicado em: 05/12/2019
-
4. QUALITATIVE AND PHENOMENOLOGICAL RESEARCH IN MENTAL HEALTH: MAPPING AS A PROPOSED DESCRIPTIVE METHOD
Resumo O modelo de Atenção em Saúde Mental vem sendo discutido no Brasil há décadas. Nos últimos anos, passou da atenção hospitalar para Atenção Psicossocial territorializada, modelos que convivem lado a lado, demandando conhecer como se arranjam os processos assistenciais. Este trabalho apresenta o método fenomenológico como potencial para esta
Psic.: Teor. e Pesq.. Publicado em: 02/12/2019
-
5. Reflexões sobre a educação do trabalhador a partir do pensamento de Simone Weil1
Resumo A filósofa francesa Simone Weil (1909-1943) buscou compreender o estatuto do trabalho na vida humana, bem como as formas de opressão operária vigentes em sua época. Ela propôs uma ressignificação do trabalho, visando à liberdade e à dignidade humana. Embora o trabalho seja um tema frequentemente referido nos artigos dedicados a essa pensadora
Pro-Posições. Publicado em: 02/12/2019
-
6. A Note on Parameter Identification of the AISI 304 Stainless Steel Using Micromechanical-Based Phenomenological Approaches
Austenitic stainless steels have largely been used in industrial equipment, architectural components and consumer items amongst others. Numerical simulation of manufacturing processes of such components and parts requires adequate hardening descriptions and accurate inelastic parameters. This work addresses these issues for the AISI 304 stainless steels base
Mat. Res.. Publicado em: 19/08/2019
-
7. MODEL PREDICTIVE CONTROL FOR PRODUCTION OF ULTRA-LOW SULFUR DIESEL IN A HYDROTREATING PROCESS
ABSTRACT There is a continual desire around the world to reduce the sulphur content of diesel fuel to ultra-low levels (below 10 ppm) due to environmental concerns and the intention of improving air quality and lowering harmful exhaust emissions of diesel engines. In this work, a hydrodesulfurization unit fed with multiple diesel streams was addressed using
Braz. J. Chem. Eng.. Publicado em: 15/07/2019
-
8. El silencio y la palabra Merleau-Ponty, Derrida y los márgenes del lenguaje
Abstract: This article aims to realize a confrontation between Merleau-Ponty's phenomenological model and Derrida's deconstructive proposal, with regard to the subject of language and the genetic problematic. In Merleau-Ponty, the genetic question is linked to the notion of the body and the pre-categorial expressiveness of gestures, in which silence describe
Trans/Form/Ação. Publicado em: 08/04/2019
-
9. Phenomenology of the Maximum Fragment Mass Dependence Upon Ballistic Impact Parameters
Abstract Molecular dynamics simulations of the ballistic Taylor test are used to explore correlation between the largest fragment mass and the impact energy of a projectile as well as a set of selected state variables. Flat-ended, monocrystalline, nanoscale bars collide with a rigid wall with striking velocities ranging from 0.27 km/s to 60 km/s. The investi
Lat. Am. j. solids struct.. Publicado em: 2017-08
-
10. MODELING AND SIMULATION OF THE PROCESS OF DEHYDRATION OF BIOETHANOL TO ETHYLENE
Abstract The use of carbon-based waste biomass in the production of plastics can partially meet the growing demand for plastics in the near future. An interest in the production of ethylene from bioethanol has been renewing, motivated mainly by environmental appeal and economics. The main objective of this work is the development of a mathematical model for
Braz. J. Chem. Eng.. Publicado em: 2016-09
-
11. Numerical Predictions for the Thermal History, Microstructure and Hardness Distributions at the HAZ during Welding of Low Alloy Steels
A phenomenological model to predict the multiphase diffusional decomposition of the austenite in low-alloy hypoeutectoid steels was adapted for welding conditions. The kinetics of phase transformations coupled with the heat transfer phenomena was numerically implemented using the Finite Volume Method (FVM) in a computational code. The model was applied to si
Mat. Res.. Publicado em: 05/04/2016
-
12. Prediction of Phase Composition and Nitrogen Concentration During the Nitriding Process in Low-Alloy Steel
A diffusion/transformation coupled model has been developed which combines finite difference (FD) model with a phenomenological model. The composition of the different iron-nitrogen(Fe-N) hardening phase can be regard as a function of nitriding time and nitrogen concentration. The diffusion model and transformation model are linked by the limiting nitrogen s
Mat. Res.. Publicado em: 05/02/2016