Saúl Montes de

Implementation of 3D printing as a didactic tool for problem solving of engineering systems and devices

Ángel Rafael Monroy-Peláez, Isaac Juarez-Acosta, Alan Miralrio, Saúl Montes de

This study explored the impact of 3D printing as an educational tool for engineering systems and device instruction with students of Tecnologico de Monterrey, Campus Toluca, implemented during the August–December 2023 semester. This initiative was integrated into two courses: Modeling Motion in …

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Enhanced water molecule sensitivity on defective WS2 monolayers through (ZnO)12 spherical nanocages decoration: A theoretical study

By Eduardo Rangel, Gerardo Fonseca, Saúl Montes de, José Francisco García et autres

The adsorption of water molecules on sulfur vacancies ( V S and V 2S2 ) and gold atoms embedded in the sulfur vacancies ( Au S ) of tungsten disulfide (WS 2 ) monolayers (ML) decorated with zinc-oxide (ZnO) 12 nanocages were …

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Evidence of Effectiveness for AJA Strategy to Argumentative Skills Development in Engineering Students

A. Flores-Amado, Gibrán Sayeg-Sánchez, Adriana Amozurrutia-Elizalde, Saúl Montes de et autres

Development of argumentative skills is fundamental for Engineering students, allowing them to identify assumptions and build conclusions about observed phenomena. In this paper we report results from a study involving 41 Engineering students, who practice and apply the Affirmation - Justification - …

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Gas Sensing and Half-Metallic Materials Design Using Metal Embedded into S Vacancies in WS2 Monolayers: Adsorption of NO, CO, and O2 Molecules

Eduardo Rangel-Cortés, José Pablo Garcia-Islas, Josue Gutierrez-Rodriguez, Saúl Montes de et autres

The adsorption of CO, NO, and O2 molecules onto Cu, Ag, and Au atoms placed in the S vacancies of a WS2 monolayer was elucidated within dispersion-corrected density functional theory. The binding energies computed for embedded defects into S vacancies were 2.99 …

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Substitutional Coinage Metals as Promising Defects for Adsorption and Detection of Gases on MoS2 Monolayers: A Computational Approach

Josue Gutierrez-Rodriguez, Miguel Castro, José Manuel Nieto-Jalil, Dora I. Medina et autres

Defective molybdenum disulfide (MoS2) monolayers (MLs) modified with coinage metal atoms (Cu, Ag and Au) embedded in sulfur vacancies are studied at a dispersion-corrected density functional level. Atmospheric constituents (H2, O2 and N2) and air pollutants (CO and NO), known as secondary …

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Professors' Concerns after the Shift from Face-to-face to Online Teaching amid COVID-19 Contingency: An Educational Data Mining analysis

Saúl Montes de, Mario Villada-Balbuena, Claudia Camacho-Zúñiga

The Covid-19 outbreak forced education into a distance modality. Professors and educators suddenly confronted unexpected challenges, including a lack of technical skills to implement efficient pedagogies in this modality. One rescuing element was social media, increasingly used inside organizations. It allows users …

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Trajectory Tracking Control for a Boost Converter Based on the Differential Flatness Property

Leopoldo Gil-Antonio, Belem Saldivar, Otniel Portillo-Rodríguez, Gerardo Vázquez-Guzman et autres

This paper presents the control design for the regulation and trajectory tracking tasks of the non-minimum phase output voltage of a DC-DC Boost-type power converter. The proposed approach exploits the differential flatness property of the system leading to a control strategy whose …

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Lyapunov–Krasovskii approach to the stability analysis of the milling process

Luis Fernando Ramírez, Belem Saldivar, Juan Carlos Ávila-Vilchis, Saúl Montes de

Self‐excited milling vibrations represent an important problem in the manufacturing industry. This study presents an out‐of‐process analysis based on the Lyapunov–Krasovskii approach which provides operational guidelines for the proper selection of the cutting parameters to guarantee a stable vibration‐free process. The proposed …

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Numerical experiment on a modified PLL with the Euler method. Part-2: Demodulation criteria

Saúl Montes de, Susmita Roy, Sankha Subhra Ghosh, Baidyanath N. Biswas

Fault‐tolerant control design using the linear parameter varying approach

Saúl Montes de, Sebastián Tornil-Sin, Vicenç Puig, Didier Theilliol

SUMMARY In this paper, a fault‐tolerant control (FTC) design method based on linear parameter varying (LPV) gain‐scheduling theory is proposed. The main contribution is the design of a fault‐tolerant state‐feedback observer‐based controller based on a polytopic LPV representation where faults are considered …

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A fault-tolerant control strategy for non-linear discrete-time systems: application to the twin-rotor system

Marcin Witczak, Vicenç Puig, Saúl Montes de

In this paper, an active fault-tolerant control scheme is proposed in the case of actuator faults. In particular, the general idea of integrating fault identification and control schemes, which takes into account the fault estimation error is first presented in a linear …

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Adaptive threshold generation in robust fault detection using interval models: time‐domain and frequency‐domain approaches

Vicenç Puig, Saúl Montes de, Joaquím Blesa

SUMMARY In this paper, robust fault detection is addressed on the basis of evaluating the residual energy that it is compared against worst‐case value (threshold) generated considering parametric modeling uncertainty using interval models. The evaluation of the residual/threshold energy can be performed …

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