A5020235411- Advanced machining processes and optimization
- Additive Manufacturing and 3D Printing Technologies
- Asphalt Pavement Performance Evaluation
- Cellular and Composite Structures
- Advanced Surface Polishing Techniques
- Mechanical and Optical Resonators
- Injection Molding Process and Properties
- Infrastructure Maintenance and Monitoring
- Polymer Foaming and Composites
- Surface Treatment and Residual Stress
- Gear and Bearing Dynamics Analysis
- Advanced MEMS and NEMS Technologies
- Acoustic Wave Resonator Technologies
- Tribology and Lubrication Engineering
- Total Knee Arthroplasty Outcomes
- Mechanical Engineering and Vibrations Research
- Metal and Thin Film Mechanics
- Advanced Machining and Optimization Techniques
- Cell Image Analysis Techniques
- Manufacturing Process and Optimization
- Polymer composites and self-healing
- Semiconductor Lasers and Optical Devices
- Image Processing Techniques and Applications
- Metal Forming Simulation Techniques
- Mechanical stress and fatigue analysis
Universidad de Guanajuato
2013-2024
Institución Universitaria Centro de Estudios Superiores María Goretti
2022
Corporación Universitaria Autónoma de Nariño
2022
Instituto Tecnológico Superior de Irapuato
2018
Unidad de Cirugía Cardiovascular de Guatemala
2018
Universidad Veracruzana
2010
Classe I: Evidências e/ou concordância geral de que o procedimento é benéfico e
Fokus dalam penelitian ini adalah bagaimana semiotika Roland Barthes digunakan untuk mengungkap makna dibalik tanda foto “Capitolio”. Buku fotografi “Capitolio” merupakan karya dari Christopher Anderseon yang dibuat pada tahun 2004-2007 dirilis resmi oleh RM 2010. Penelitian juga bertujuan menganalisis dan mendeskripsikan denotasi, konotasi, mitos Metode kualitatif deskriptif yaitu menjabarkan membahas suatu fenomena terjadi. Teknik pengumpulan data melalui studi Pustaka berupa sumber...
Expanded polystyrene is used in diverse applications, notably for protective and structural purposes. Its cushioning mechanical strength excel under compressive loads, especially when optimally designed. A key factor influencing its stress the initial density, which plays a significant role determining material’s properties. This aspect primarily determined by bead size distribution. Although there vast body of literature on modeling response expanded polystyrene, limited emphasis...
A reduction in the number of interventional cardiology procedures has emerged as a result COVID-19 pandemic. survey was performed to quantify this decrease and impact on management myocardial infarction Latin America.A telematic conducted for all countries America. Diagnostic catheterisations, coronary structural interventions, well incidence delay reperfusion therapy (STEMI), were recorded. Two periods compared: from 24 February 8 March 2020 (pre-COVID-19) another 2‑week period that varied...
This research presents a method to analyze how neural network models, applied Expanded Polypropylene and Polystyrene foams, predict their compressive stress responses. By using SHAP values Partial Dependence Plots, the study elucidates models’ decision-making processes. It focuses on three main features for both materials: density, loading rate, strain, with an additional feature concerning unloading foam. The findings highlight that increased density rate are closely correlated higher...
Micro- and nanoresonator sensors have important applications such as in chemical biological sensing, environmental control, monitoring of viscosity magnetic fields, inertial forces detection. However, most these resonators are designed complex structures that complicate the estimation their resonant frequencies (generally bending or torsional mode). In this paper, we present an analytical model to estimate frequency first mode micro- nanoresonators based on a beam system under different load...
Traditional modeling of mechanical energy absorption due to compressive loadings in expanded polystyrene foams involves mathematical descriptions that are derived from stress/strain continuum mechanics models. Nevertheless, most those models either constrained using the strain as only variable work at large deformation regimes and usually neglect important parameters for properties such material density or rate applying load. This presents a neural-network-based approach produces capable map...
The expanded polystyrene foam is widely used as a protective material in engineering applications where energy absorption critical for the reduction of harmful dynamic loads. However, to design reliable components, it necessary predict its nonlinear stress response with good approximation, which makes possible know from analysis amount that product may absorb. In this work, hyperfoam constitutive model was finite element approximate mechanical an three different densities. Additionally,...
Multilayered microresonators commonly use sensitive coating or piezoelectric layers for detection of mass and gas. Most these have a variable cross-section that complicates the prediction their fundamental resonant frequency (generally bending mode) through conventional analytical models. In this paper, we present an model to estimate first deflection curve single-clamped multilayered with cross-section. The is obtained using Rayleigh Macaulay methods, as well Euler-Bernoulli beam theory....
Expanded polystyrene foams are widely used materials for various applications in engineering, including their use protective designs. For this type of application, engineering analysis and design, it is required to know the mechanical response compression material, since energy parameters that support effectiveness a design derived from it. One these strain hysteresis, through which possible how capable material absorbing energy. The modeling prediction parameter challenge point view. This...
In the paper an application of laser measurements for validation gears dynamic model have been presented.The was compared with experimental data in case diagnostics manufacturing failures.The comparison done on basis vibration signals generated by and real object.In experiment correct work as well incorrect one studied.Purpose is to compare data; this end, Multibody build MSC ADMS software.The consists two shafts, both shafts treated rigid bodies, but contact surfaces between them are...
Abstract In this work we analyse the fabrication of Polymer Dispersed Liquid Crystals (PDLCs) using SU8‐2002‐2007 photoresist and 5CB E7 Crystals. Also report nonlinear optical behaviour for these materials with a Twisted Cell (T‐PDLC). We found that depending several parameters, droplets size varies from nano to micro dimensions. first time, our best knowledge, synthesis SU8 Crystal (PDLC) by polymer liquid crystals (LC) also T‐PDLC. have characterized formation micron different variables...
Ball-burnishing is a secondary process to improve the physical-mechanical properties and surface finishing of manufactured parts. Despite being known for more than 30 years, it has recently increased its industrial use in several applications such as manufacture injection molds, tools metal forming, well as, diverse components automotive, railroad aerospace industries; so research fundamental. In recent decades, various focused on theoretical, numerical experimental study ball-burnishing...
Recently, Machine Learning algorithms have been employed to automate several processes, including software development. However, this action demands large datasets for training these algorithms. To our knowledge, there is no tool generating synthetic that contain HTML objects (interfaces, codes, wireframe.) Thus, we present the Web Generator, a designed mainly provide web pages, designs, and content based on Bootstrap frontend framework. The delivers markup code, screenshots, labels...
The results of chemical synthesis and optical behavior silver nanoparticles with sizes ranging from 2–10 nm which were obtained by reduction Ag+ are reported. material morphology was examined transmission electron microscopy (TEM) physical properties studied photoluminescence in the range 400–550 using two different excitation wavelengths (320 380 nm). signature provided plasmon is readily noticed nanoparticles. nonlinear a Z-scan setup agree previous other methods preparation samples. In...
In this paper, a methodology to simulate the orthogonal metal turning and cutting forces using finite element method is presented. To validate numerical results obtained from model, experimental tests were performed on AISI-1045 steel, dynamometer an acquisition software used obtain forces. These calculate global friction coefficient, then, simulation of process was done, Johnson-Cook material model APDL code in FEM software. Components force analyzed experiment simulations for three carbide...
Ball burnishing is a surface improvement process that provides compressive residual stresses and increment the hardness in layer of workpieces.Actually, state art some papers use FEM to simulate most cases without consideration roughness workpiece, other considered only as two-dimensional semicircular or triangular periodic pattern.In studies three-dimensional roughness, two dimensional case extruded.In this paper, new way random was used ball obtaining final distribution below it.For...
Injection molding is one of the most used processes in polymer parts forming industry, which consists raising temperature a polymeric material to its melting point and introducing it under pressure into cavity mold where It will cool suitable so that pieces can be extracted without deforming. This article presents review state art scientific works techniques, methods commercial software, analyze, understand some cases mitigate failures injection process, reduce cycle times production costs....