Now showing 1 - 4 of 4
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Image and Representation on E. Cassirer. A Reflection since the Computed Tomography Scan

2022 , Esparza, Gustavo , Dávalos Orozco, Oscar , Brambila-Paz, Fernando

En el presente artículo se estudian los conceptos de imagen y representación en la filosofía de Ernst Cassirer. En este texto se hace patente el valor simbólico con el cual el neokantiano define a las imágenes. A partir de ello, se explica cómo éstas pueden presentarse como una relación de identidad entre un objeto definido y el concepto construido por un agente epistémico. Para ilustrar dicha teoría, se considera el funcionamiento del Tomógrafo Axial Computarizado (TAC) para mostrar que la finalidad de las imágenes médicas es representar la realidad de forma digital, para lo cual se requiere únicamente simbolizar la forma del cuerpo. Finalmente, se sugiere el uso del Efecto Doppler como método alternativo a considerar en el funcionamiento del TAC.

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An Accurate Explicit Six-Parameter Solar Cell Model Based on Single-Diode and Its Parameter Extraction for Seven Photovoltaic Technologies

2023 , Dávalos Orozco, Oscar , Rodrigo, P. M. , Fernando Brambila-Paz , Rosas-Caro, Julio

Abstract The mathematical modeling of solar cells and panels is critical in many photovoltaic applications. However, the standard single-diode solar cell model, commonly selected to model these devices, is implicit and difficult to integrate into simulation software. Therefore, exact explicit solutions of this model, more suitable for computing purposes, have been proposed based on the Lambert W-function. This work introduces an explicit single-diode, easy-to-use six-parameter solar cell model. The proposed model is formulated with elementary functions. The model is developed and tested over seven photovoltaic technologies as an alternative to traditional approaches. Results of the extensive comparison of the three models (implicit, explicit Lambert W, and explicit six-parameter) show that the proposed approach is more accurate (14.81% relative improvement on average compared to the traditional methods), almost as fast as the Lambert W approach and much faster than the implicit approach. Due to its simplicity and accuracy, the proposed model will become an alternative in photovoltaic applications such as energy prediction and maximum power point tracking.

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Using Fully Cartesian Coordinates to Calculate the Support Reactions of Multi-Scale Mechanisms

2018 , Orvañanos-Guerrero, María T. , Sánchez-Gómez, Claudia , Dávalos Orozco, Oscar , Mariano Rivera , Velázquez, Ramiro , Acevedo, Mario

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Review of explicit models for photovoltaic cell electrical characterization

2025 , Pedroza-Díaz, Alfredo , Rodrigo, P. M. , Dávalos Orozco, Oscar , de la Vega, Eduardo , Valera-Albacete, Álvaro