Graphical Reaction
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. ANALYTICAL EXPRESSIONS FOR THE CONCENTRATION AND CURRENT IN THE REDUCTION OF HYDROGEN PEROXIDE AT A METAL-DISPERSED CONDUCTING POLYMER FILM
A mathematical model describing the reduction of Hydrogen peroxide (H2O2) to water in a metal dispersed conducting polymer film is discussed. The model is based on a system of reaction-diffusion equations containing a non-linear term related to Michaelis-Menten kinetics of the enzymatic reaction. The approximate analytical expressions corresponding to the co
Quím. Nova. Publicado em: 2020-01
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2. Visual FTBL Generator: Visual Generation Tool for 13C-FLUX File
Abstract 13C metabolic flux analysis (13C-MFA) has achieved increasing significance in quantitative metabolic system analysis in recent years. In 13C metabolic flux analysis, 13C-FLUX software is a major analytical tool. The software’s input script is primarily expressed in textual form without visual presentation of the structure of the entire metabolic
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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3. APPLICATION OF RESPONSE SURFACE METHODOLOGY FOR LIPASE CATALYZED SYNTHESIS OF 2-ETHYLHEXYL PALMITATE IN A SOLVENT FREE SYSTEM USING ULTRASOUND
Abstract This study aims at clean production of 2-ethylhexyl palmitate catalyzed by lipase Fermase CALB 10000 in a solvent-free system using ultrasound technology. The central composite design (CCD) of response surface methodology with 4 factors at 3 levels consisting of acid to alcohol molar ratio (1:3-1:7), enzyme loading (3 %-7% (w/w)), ultrasound power (
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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4. Enzyme kinetic modelling and analytical solution of nonlinear rate equation in the transformation of D-methionine into L-methionine in batch reactor using the new homotopy perturbation method
A mathematical model of biotransformation of D-methionine into L-methionine in the cascade of the enzymes such as, D-amino acid oxidase (D-AAO), L-phenylalanine dehydrogenase (L-PheDH) and formate dehydrogenase (FDH) is discussed. The model is based on a system of coupled nonlinear reaction equations under non steady-state conditions for biochemical reaction
Quím. Nova. Publicado em: 2016-12
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5. Filtros digitais por transformadas de Fourier aplicados em eletroquímica
The electrochemical properties of micro and nano-electrodes are widely investigated due to their low faradaic and capacitive currents, leading to a new generation of smart and implantable devices. However, the current signals obtained in low-dimensional devices are strongly influenced by noise sources. In this paper, we show the evaluation of filters based o
Quím. Nova. Publicado em: 2013
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6. Development, implementation and performance evaluation of a self-tuning regulator adaptive controller applied to a FCC process / Desenvolvimento, implementação e avaliação de desempenho de um controlador adaptativo do tipo self-tuning regulator aplicado a um processo FCC
This work had as main objective the development and implementation of an selftuning regulator (STR) adaptive controller, with subsequent comparison of its performance with a PID (proportional-integral-derivative) controller and two predictive controllers, namely a predictive based on artificial neural networks (MPC-ANN) and a dynamic matrix controller (DMC).
Publicado em: 2010
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7. Simulação de espectros do radical C2* para estudos de combustão / Simulation of C2* radical spectra for combustion studies
The diagnostics of particular species in combustion processes is the key for the development of combustion devices, such as burners, chambers, etc. and also to the understanding of these processes through the study of chemical reaction mechanisms with the aid of mathematical models. One of the diagnostic techniques employed with great success is the emission
Publicado em: 2009
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8. Educação a distância em uma instituição de ensino superior : estudo das barreiras e do nível de satisfação encontrados no processo de implantação
Pesquisar, em uma instituição de ensino superior (IES), as barreiras à implantação da Educação a Distância e o nível de satisfação dos alunos com a realização de disciplinas nessa modalidade de ensino-aprendizagem constituiu o objetivo geral de pesquisa estabelecido neste trabalho. Dois objetivos específicos foram definidos: a) Investigar a exi
Publicado em: 2007
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9. Metodologia de obtenção de resultados em fluido-dinamica computacional : aplicação a reatores tanques agitados
In this thesis, procedure for obtaintion of vector and scalar fields is shown and applied to stirred tank reactors. The methodology of the present work is emphasized through case studies with a Newtonian fluid, water, and a non-Newtonian system, polystyrene. Both fluids are contained inside a stirred tank reactor. The system stirred tank reactors is studied
Publicado em: 1997
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10. Obtenção, caracterização e utilização de puba como materia-prima na produção de etanol
"Puba" was produced through six alternative experiments, using three cassava varieties and two types of containers and experimental conditions. The resulting "puba" was submitted to proximate composition, particle distribution, damaged starch, water and alcohol soluble acidity, blue value, water absorption, water solubility, pasting properties analyses and m
Publicado em: 1993
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11. Graphical Evaluation of Alkylation of Myosin's SH1 and SH2: The N-Phenylmaleimide Reaction
Previous assertions about the effect of alkylation of SH1 and SH2 on the myosin high-salt calcium and EDTA ATPases have been summarized, and a simple procedure for obtaining the fractional labeling of SH1 and SH2 after treatment of myosin with alkylating agents has been derived. A simple graphical procedure for illustrating the degree of preference of a part
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12. Membrane Transport Against the External Driving Force Due to Mass Transfer-Reaction Coupling
Coupling between chemical reactions and transport phenomena can cause the substrate concentration at the surface of a membrane to be lower on the substrate-rich side than the substrate-lean side. Thus, the diffusing flux inside the membrane may be counter to the overall external concentration driving force. Graphical solutions of various steady states of suc