El programa de Doctorado en Ciencias de la Ingeniería (DOCII) es un posgrado del área de Ingeniería y Tecnología de la Universidad Autónoma de Zacatecas que inicio en Agosto de 2009. El DOCII espera que una vez concluidos sus estudios de posgrado, el doctorante tenga las habilidades para redactar reportes de investigación, escribir artículos en revistas de alto impacto, capacidad de trabajar en equipo y, ha de poseer habilidades de comunicación y organización. Finalmente, que sean profesionales con vasto dominio de la disciplina en la frontera del conocimiento en la que fue formado. http://ricaxcan.uaz.edu.mx/jspui/handle/20.500.11845/2266 2026-04-04T17:04:00Z 2026-04-04T17:04:00Z http://ricaxcan.uaz.edu.mx/jspui/handle/20.500.11845/2795 2022-11-01T15:36:14Z 2021-05-26T00:00:00Z

Título : A Methodological Process for the Design of Frameworks Oriented to Infotainment User Interfaces Authors: Domínguez Baez, Carlos Alberto; Mendoza González, Ricardo; Luna García, Huizilopoztli; Rodríguez Díaz, Mario Alberto; Luna Rosas, Francisco Javier; Martínez Romo, Julio César; Celaya Padilla, José María; Galván Tejada, Jorge Issac; Galván Tejada, Carlos Erik; Gamboa Rosales, Hamurabi Resumen : The objective of this paper was to propose a methodological process for the design of frameworks oriented to infotainment user interfaces. Four stages comprise the proposed process, conceptualization, structuring, documentation, and evaluation; in addition, these stages include activities, tasks, and deliverables to guide a work team during the design of a framework. To determine the stages and their components, an analysis of 42 papers was carried out through a systematic literature review in search of similarities during the design process of frameworks related to user interfaces. The evaluation method by a panel of experts was used to determine the validity of the proposal; the conceptual proposal was provided to a panel of 10 experts for their analysis and later a questionnaire in the form of a Likert scale was used to collect the information on the validation of the proposal. The results of the evaluation indicated that the methodological process is valid to meet the objective of designing a framework oriented to infotainment user interfaces.

2021-05-26T00:00:00Z http://ricaxcan.uaz.edu.mx/jspui/handle/20.500.11845/2605 2021-06-18T04:02:39Z 2020-01-01T00:00:00Z

Título : Single-Bubble Dynamics in a Dense Phase Fluidized Sand Bed Biomass Gasification Environment Authors: Torres Brauer, Nicolas; Serrano Rosales, Benito; de Lasa, Hugo Resumen : Biomass gasification in fluidized beds is a process of important commercial value. The simulation of these fluidized bed units strongly depends on establishing bubble dynamics in dense phase sand fluidized beds. In these studies, the selected biomass pellet dimensions were 2.7 cm in length and 0.8 cm in diameter. To develop bubble dynamics studies in the present research, a combination of CREC-Optiprobes and a video micro-camera were employed. This was done to record bubble velocity and bubble dimensions in a 200–900 μm particle sand fluidized bed. The effects of biomass pellet concentration on the bubble rise velocity and bubble size and shape were evaluated at conditions close to minimum fluidization. On this basis, a theoretical bubble dynamic model was established. This phenomenologically based model included an adjustable bubble wake parameter, with model predictions providing the bubble chord, bubble frontal ratio, and bubble rising velocity.

2020-01-01T00:00:00Z http://ricaxcan.uaz.edu.mx/jspui/handle/20.500.11845/2604 2021-06-18T04:02:14Z 2020-03-10T00:00:00Z

Título : Ru-Promoted Ni/γAl2O3 Fluidized Catalyst for Biomass Gasification Authors: Calzada Hernandez, Alan Rubén; González Castañeda, Daniel Gibran; Sánchez Enriquez, Adriana; de Lasa, Hugo; Serrano Rosales, Benito Resumen : Fluidizable catalysts based on Ni/γAl2O3 with added Ru were used for the gasification of a lignin surrogate (2-methoxy-4-methylphenol) in a fluidized CREC Riser Simulator reactor. This was done in order to quantify lignin surrogate conversion and lignin surrogate products (H2, CO, CO2 and CH4) as well as the coke deposited on the catalyst. The catalysts that were evaluated contained 5% wt. Ni with various Ru loadings (0.25%, 0.5% and 1% wt). These catalysts were synthesized using an incipient Ni and Ru co-impregnation. Catalysts were characterized using XRD, N2 adsorption-desorption (BET Surface Area, BJH), Temperature Programmed Reduction (TPR), Temperature Programmed Desorption (TPD) and H2 chemisorption. Catalytic steam gasification took place at 550, 600 and 650 ◦C using 0.5, 1.0 and 1.5, steam/biomass ratios. The results obtained showed that Ru addition helped to decrease both nickel crystallite site sizes and catalyst acid site density. Moreover, it was observed that coke on the catalyst was reduced by 60%. This was the case when compared to the runs with the Ni/γAl2O3 free of Ru.

2020-03-10T00:00:00Z http://ricaxcan.uaz.edu.mx/jspui/handle/20.500.11845/2603 2021-06-18T04:01:38Z 2019-01-01T00:00:00Z

Título : Chalcopyrite Leaching Kinetics in the Presence of Methanol Authors: Solís Marcial, Oscar Joaquin; Nájera Bastida, Alfonso; Bañuelos, J. E.; Valdés Martínez, Omar Uriel; Luevano, L. A.; Serrano Rosales, Benito Resumen : The dissolution of chalcopyrite under near ambient conditions represents one of the main challenges in the copper industry. Thus, various routes have been proposed for chalcopyrite treatment, such as the use of polar organic solvents, and this has shown promising results. In this paper, we present a study of copper leaching from a chalcopyrite concentrate in aqueous acidic medium with methanol and various H2O2 concentrations at 15, 30, and 40 °C. The results show that nearly complete copper extraction was attained within 5 h at 40 °C. The extraction percentages were plotted as functions of time at each temperature. The experimental data were modeled using the shrinking core model considering the cylindrical particle shape (shrinking cylinder model) within acceptable confidence levels, yielding an estimated activation energy of 24.3 kJ/mol. Furthermore, the process was dependent on the H2O2 concentration, and it acts as a reagent rather than an oxidant in the leaching reaction. It was found that sulfur is the only species present in the solid phase formed during the leaching of chalcopyrite, demonstrating the co-dissolution of both copper and iron.

2019-01-01T00:00:00Z