Model Predictive Control
Mostrando 1-12 de 149 artigos, teses e dissertações.
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1. Total cholesterol/high-density lipoprotein and inflammatory parameters in patients with polycystic ovary syndrome
SUMMARY OBJECTIVE: In this study, the hormone profile, lipid profile, and inflammatory parameters of patients with polycystic ovary syndrome were compared with those of non-polycystic ovary syndrome patients to determine predictive markers in young polycystic ovary syndrome patients who have not yet had children. METHODS: Patients’ age, height, weight, b
Revista da Associação Médica Brasileira. Publicado em: 2022
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2. REGRESSÃO MULTIVARIADA POR OPLS E PLS DOS ESPECTROS DE RMN DE 1H DE MISTURAS DIESEL/BIODIESEL DE MAFURRA PARA ESTIMATIVA DO TEOR DE BIODIESEL
Two methodologies were developed to monitor the biodiesel content of mafurra in mixtures with diesel using hydrogen nuclear magnetic resonance (1H NMR) Spectroscopy combined with the multivariate regression by orthogonal projections to latent structure (OPLS) and partial least squares (PLS). The efficiency of these methodologies was analyzed based on the fig
Quím. Nova. Publicado em: 20/07/2020
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3. INTEGRATING REAL TIME OPTIMIZATION AND MODEL PREDICTIVE CONTROL OF A CRUDE DISTILLATION UNIT
Abstract This work reports the integration of Real Time Optimization and Model Predictive Control in the multi-layer control structure of an existing Crude Distillation Unit (CDU) of an oil refinery. The MPC considers output control zones and targets for the inputs or outputs. Both the infinite horizon and the finite output horizon controllers were tested. T
Braz. J. Chem. Eng.. Publicado em: 09/12/2019
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4. A METHODOLOGY TO OBTAIN ANALYTICAL MODELS THAT REDUCE THE COMPUTATIONAL COMPLEXITY FACED IN REAL TIME IMPLEMENTATION OF NMPC CONTROLLERS
Abstract Model Predictive Control, MPC and NMPC, and real-time optimization, RTO and D-RTO, are known to help plant operability through the mitigation of impacts caused by external disturbances. However, the usage of these tools in industry requires overcoming some challenges, for instance: accurate models of the process, particularly in regard to nonlineari
Braz. J. Chem. Eng.. Publicado em: 09/12/2019
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5. Incidência e fatores preditivos de quedas em idosos na comunidade: um estudo longitudinal
Resumo Objetivou-se estimar a incidência de quedas entre os idosos e determinar os fatores preditivos de quedas e quedas recorrentes. Estudo longitudinal (2014-2016) conduzido com 345 idosos da área urbana em Uberaba-MG. Utilizou-se: instrumento estruturado referente aos dados socioeconômicos e à ocorrência de quedas; Escalas de Katz e Lawton e Brody; S
Ciênc. saúde coletiva. Publicado em: 09/09/2019
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6. A Regional Legacy Soil Dataset for Prediction of Sand and Clay Content with Vis-Nir-Swir, in Southern Brazil
ABSTRACT The success of soil prediction by VIS-NIR-SWIR spectroscopy has led to considerable investment in large soil spectral libraries. The aims of this study were 1) to develop a soil VIS-NIR-SWIR spectroscopy approach using legacy soil samples to improve spectral soil information in a regional scale; (2) to compare six spectral preprocessing techniques;
Rev. Bras. Ciênc. Solo. Publicado em: 15/08/2019
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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
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8. Predictors of behavioral problems in adolescents: family, personal and demographic variables
Resumo O estudo teve por objetivo correlacionar, comparar e identificar as variáveis familiares, pessoais e demográficas que podem ser preditivas para problemas de comportamento de adolescentes. Participaram 300 adolescentes, sendo 70 sem problemas de comportamentos (47 meninas e 23 meninos; M = 14,09 anos e DP = 1,33) e 230 com problemas de comportamento
Psico-USF. Publicado em: 10/07/2019
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9. Predicting intraoperative pain in emergency endodontic patients: clinical study
Abstract This prospective observational study sought to investigate the incidence of intraoperative pain (IOP) among emergency endodontic patients and to construct an IOP prediction model that includes preoperative pain level (PPL). All patients who underwent emergency endodontic treatment at Gazi University, Ankara, Turkey, during the spring term of 2016 we
Braz. oral res.. Publicado em: 06/08/2018
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10. Modelo de predicción de la deserción estudiantil de primer año en la Universidad Bernardo O´Higgins
Abstract The objective of this study is to model a retention predictive system for first-year students at Universidad Bernardo O’Higgins (Santiago de Chile), by determining which of the variables of entry into higher education, whether these are academic, social or relatives, are revealed significant for this analysis. The construction of the research mode
Educ. Pesqui.. Publicado em: 18/06/2018
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11. Reconstruction of gait biomechanical parameters using cyclograms and artificial neural networks
Abstract Introduction Historically, assessing the quality of human gait has been a difficult process. Advanced studies can be conducted using modern 3D systems. However, due to their high cost, usage of these 3D systems is still restricted to research environments. 2D systems offer simpler and more affordable solutions. Methods In this study, the gait of 4
Res. Biomed. Eng.. Publicado em: 17/08/2017
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12. Fluorescent test accurately predicts leak of ischemic colon anastomosis in rats
Abstract Purpose: To investigate if fluorescein fluorescent test can predict dehiscence in a model of ischemic colonic anastomosis in rats. Methods: This experimental controlled trial randomly assigned 55 rats to four groups. Anastomoses were performed in non-ischemic colon segments (control group) and in ischemic colon segments measuring 1, 2 or 3 cm long
Acta Cir. Bras.. Publicado em: 2017-06