Alejo-Reyes, Avelina
Thumbnail Image
Preferred name
Alejo-Reyes, Avelina
Alternative Name
aalejo
Main Affiliation
ORCID
Scopus Author ID
57202425879
Researcher ID
EKT-0166-2022

Research Output

Filters

30
30
Reset filters

Settings
Now showing 1 - 10 of 30
No Thumbnail Available
Publication

Inventory replenishment decisions model for the supplier selection problem facing low perfect rate situations

2019 , Alejo-Reyes, Avelina , Mendoza, Abraham , Olivares-Benitez, Elias

View
No Thumbnail Available
Publication

Power quality improvement by interleaving unequal switching converters

2016 , Arias-Angulo Juan Pedro , Rosas-caro, Julio , Beltran-Carbajal Francisco , Valderrabano-Gonzalez, Antonio , Haro-Sandoval, Eduardo , Gutiérrez-Alcalá, Salvador , Alejo-Reyes, Avelina , Garcia-Vite Pedro Martin

View
No Thumbnail Available
Publication

Numerical Optimization of the Capacitors Selection in the MSBA Converter to Reduce the Output Voltage Ripple

2022 , Alejo-Reyes, Avelina , Rodríguez Vázquez, Alma Nayeli , Rosas-caro, Julio , Mendoza, Abraham

DC–DC power electronics converters are widely used in many applications, such as renewable energy systems. The multistage-stacked boost architecture (MSBA) converter is a large voltage gain converter whose PWM scheme may reduce a percentage of the output voltage ripple, taking advantage of the symmetry of the voltage signals in capacitors (they are triangular waveforms) to have a symmetry cancelation. The switching ripple is unavoidable; the correct selection of components can reduce it, but this may result in a large amount of stored energy (larger size). The selection of capacitors influences the output voltage ripple magnitude. This article proposes a design methodology that combines a recently introduced PWM scheme with a numerical optimization method to choose the capacitors for the MSBA converter. The objective is to minimize the output voltage ripple by choosing two capacitors simultaneously while ensuring the constraint of a certain (maximum) amount of stored energy in capacitors is not overpassed. The internal optimization was performed with the differential evolution algorithm. The results demonstrate that the proposed method that includes numerical optimization allows having a very low output voltage ripple with the same stored energy in capacitors compared to the traditional converter. In a design exercise, up to 60% reduction was observed in the output voltage ripple with the same stored energy in capacitors.

View
No Thumbnail Available
Publication

Statistical Analysis of Lean Construction Barriers to Optimize Its Implementation Using PLS-SEM and PCA

2024 , Romo Gamboa, Rubén , Alejo-Reyes, Avelina , Orozco, Francisco

The construction industry performs many tasks scheduled and related to other activities. Companies must optimize their operations, increase efficiency, eliminate waste, and deliver better products to their customers. As a result, this study aims to identify the main challenges associated with the implementation of the Lean Construction model in small and medium-sized construction companies and optimize the implementation of this process using statistically-focused mathematical models. This study was conducted using the partial least squares (PLS-SEM) method and also carried out the principal component analysis to optimize Lean barriers so that they can be properly implemented in the construction industry. The most important obstacles are displayed, as well as the relationships with other factors. Significant relationships have been discovered between the barriers to Lean construction adoption, especially with regard to corporate culture, communication, training, leadership, and the influence of mentality on business and employee adaptability. Construction executives and managers can make well-informed policy and strategic decisions by having a thorough understanding of the main barriers to Lean implementation. This information enables them to focus on the implementation of Lean technologies in projects, to increase market competitiveness, reduce waste and enhance overall work efficiency.

View
No Thumbnail Available
Publication

Double-Dual DC-DC Conversion: A Survey of Contributions, Generalization, and Systematic Generation of New Topologies

2023 , Jesus E. Valdez-Resendiz , Mayo Maldonado, Jonathan , Alejo-Reyes, Avelina , Rosas-caro, Julio

View
No Thumbnail Available
Publication

Quadratic buck–boost converter with positive output voltage and minimum ripple point design

2018 , Rosas-caro, Julio , Jesus E. Valdez‐Resendiz , Mayo Maldonado, Jonathan , Alejo-Reyes, Avelina , Valderrabano-Gonzalez, Antonio

View
No Thumbnail Available
Publication

Blood Vessel Segmentation Using Differential Evolution Algorithm

2021 , Erik Cuevas , Rodríguez Vázquez, Alma Nayeli , Alejo-Reyes, Avelina , Del-Valle-Soto, Carolina

View
No Thumbnail Available
Publication

MSC converter with optimized input current ripple for fuel cells applications

2023 , Cesar Ibarra-Nuño , Rosas-caro, Julio , Jesus E. Valdez-Resendiz , Alejo-Reyes, Avelina , Juan M. Ramirez , Victor M. Sanchez , Alma Rodriguez

View
No Thumbnail Available
Publication

Metaheuristic Algorithms Applied to the Inventory Problem

2021 , Erik Cuevas , Rodríguez Vázquez, Alma Nayeli , Alejo-Reyes, Avelina , Del-Valle-Soto, Carolina

View
No Thumbnail Available
Publication

Corner Detection Algorithm Based on Cellular Neural Networks (CNN) and Differential Evolution (DE)

2021 , Erik Cuevas , Rodríguez Vázquez, Alma Nayeli , Alejo-Reyes, Avelina , Del-Valle-Soto, Carolina

View