1. Optimization Techniques and Mathematical Modeling Applied to Reluctance Motors

Abstract The present work aims at the application of different optimization strategies in the electromagnetic analysis of the Variable Reluctance Motor (VRM) through Finite Element (FE) simulation. Two case studies are investigated: the first one aims to optimize the geometry and electrical characteristics of windings of a single-phase VRM 6/6, minimizing co

Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022

2. Modeling and Computer Simulation of Viscoelastic Crypt Deformation

ABSTRACT Colorectal cancer morphogenesis begins at the cellular level from cell mutations in the intestinal epithelium cavities called crypts. These mutations lead to a pressure difference in the epithelium crypt walls, which can cause deformation and generate visible abnormalities in the epithelium. The geometrical modeling of these crypts and the mathemati

Trends in Computational and Applied Mathematics. Publicado em: 2022

3. Mathematical Modeling of the Film Influence on the Salting Time of Mozzarella Cheese in a Static and Dynamic System: Application of Artificial Neural Networks of the Multilayer Perceptron Type

The NaCl and KCl diffusion in the film formed on the cheese surface during salting was simulated by the finite element method. The time and salts concentration values on the cheese surface were determined, tabulated, and presented to the multilayer perceptron neural network (MLP) for the regression modeling. The samples were divided into 70, 15 and 15% for t

Journal of the Brazilian Chemical Society. Publicado em: 2022

4. THE INFLUENCE OF THE FILM FORMED ON THE PRATO CHEESE SURFACE DURING THE NACL AND KCL SALTING PROCESS: APPLICATION OF THE FINITE ELEMENT METHOD AND NEURAL NETWORKS OF THE SELF-ORGANIZING MAP (SOM) AND MULTILAYER PERCEPTRON (MLP) TYPES

Sodium chloride is used in the cheese salting process as it promotes sensory changes and food preservation. However, in excess can cause hypertension problems, and for this reason, it has been partially replaced by potassium chloride. In the present work, Prato cheese was subjected to joint diffusion of NaCl and KCl by immersion in static and stirred brine.

Química Nova. Publicado em: 2022

5. Strain Analysis in Cementless Hip Femoral Prosthesis using the Finite Element Method – Influence of the Variability of the Angular Positioning of the Implant

Resumo Objetivo Avaliar a influência da variação do posicionamento da prótese femoral do quadril na tensão e na deformação produzidas neste implante. Métodos Utilizou-se a análise de tensão e de deformação da prótese femoral (Taper, Víncula, Rio Claro, SP, Brasil) pelo método de elementos finitos (MEF) de acordo com a norma ISO 7206-6 Implan

Revista Brasileira de Ortopedia. Publicado em: 2022

6. Meshless Methods for Computation of Overhead Transmission Lines Electromagnetic Fields

Abstract The meshless element-free Galerkin method (EFGM) is used to solve partial differential equations responsible for obtaining the electromagnetic fields generated by a transmission line. For this purpose, a 2D model based in a real transmission line is constructed and simulated. The results obtained by EFGM have good accuracy and they are compared agai

J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2021-06

7. Numerical analysis of collapse modes in optimized design of alveolar Steel-concrete composite beams via genetic algorithms

Abstract The objective of this study is to present the formulation and applications of the optimization problem of steel-concrete composite alveolar beams. In addition to presenting the formulation, a comparative analysis of the predominant collapse modes is performed numerically via the finite element method. The optimization program was developed with the

REM, Int. Eng. J.. Publicado em: 2021-06

8. Study of the interaction of concrete walls with the foundation structure

Abstract This article presents a study of the factors that influence the mechanism of soil-structure interaction with a pilot building having concrete walls and their impact on their performance. To illustrate the studies carried out, a numerical modeling of a four-floor concrete wall pilot building was performed, subjected to vertical actions, supported by

REM, Int. Eng. J.. Publicado em: 2021-06

9. Damage localization and quantification of tower structures based on the super-element method

Abstract Tower structures are sensitive to hurricanes or earthquakes, whereupon they are easily damaged due to large deflection and dynamic responses. Herein, a method is proposed to accurately identify the location and extent of damage in tower structures. Firstly, a tower structure is divided into several sections along its height, and each section is rega

REM, Int. Eng. J.. Publicado em: 2021-01

10. Application of self-organizing maps to evaluate the influence and behavior of the film formed during salting of Prato cheese

Abstract Problems related to high blood pressure have led consumers to choose foods with low levels of sodium chloride, and an alternative to reduce the salt content of this salt is its partial replacement with KCl. In order to not affect the sensory properties of cheese, salting was performed using a solution containing 70% of NaCl and 30% of KCl in a stati

Food Sci. Technol. Publicado em: 2020-12

11. Optical Fiber Coupler Analysis Using Daubechies Wavelets

Abstract This article presents the theoretical analysis of a signal coupling between a proposed Photonic Crystal Fiber (PCF) and a Conventional Fiber with Step Index (CFSI) system. In this analysis, the Finite Element Method (FEM) and Beam Propagation Method (BPM) are applied together with Daubechies wavelets as basis function and described in the mathematic

J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2020-09

12. Optimization of geometrically nonlinear truss structures under dynamic loading

Abstract The goal of this article is to present the formulation of the optimization problem of truss structures with geometric nonlinearity under dynamic loads and provide examples of this problem. The formulated optimization problem aims to determine the cross-sectional area of the bars that minimizes the weight of the structure, imposing constraints on nod

REM, Int. Eng. J.. Publicado em: 2020-09