Results 21 to 30 of about 31,855,851 (168)

Una primera evaluación del nuevo plan de estudios de ingeniería química de la UNAM, según los alumnos que lo cursan

open access: yesEducación Química, 2018
En noviembre de 1987, en la Facultad de Química de la UNAM se puso en marcha el nuevo plan de estudios de la licenciatura en Ingeniería Química. Entre los alumnos que ingresamos entonces a esta carrera, de la que somos la primera generación, existía ...
Ernesto Ríos Patrón
doaj   +1 more source

A Borane Sandwich Analogue of Ferrocene

open access: yesAngewandte Chemie, Volume 138, Issue 29, 13 July 2026.
The first ferrocene analogue with two boron‐based ligands is identified through a global exploration of the FeB10H20 potential energy surface. The η5,η5‐Fe(B5H10)2 complex emerges as the global minimum, showing that metal coordination inverts borane stability and enables aromatic boron rings inaccessible in isolation.
Viviana Roman‐Ventura   +8 more
wiley   +2 more sources

Aprendizaje colaborativo en ingeniería química [PDF]

open access: yes, 2021
El presente estudio se ha realizado en la asignatura Ingeniería Química perteneciente al tercer curso del Grado de Química impartido en la Universidad de Sevilla (España).
Álvarez-Castillo, Estefanía   +2 more
core   +1 more source

Pyrolysis Kinetics of Byrsonima crassifolia Stone as Agro-Industrial Waste through Isoconversional Models

open access: yesMolecules, 2023
This study is aimed at the analysis of the pyrolysis kinetics of Nanche stone BSC (Byrsonima crassifolia) as an agro-industrial waste using non-isothermal thermogravimetric experiments by determination of triplet kinetics; apparent activation energy, pre-
Jonathan M. Sanchez-Silva   +9 more
doaj   +1 more source

CVN impact energy and fracture characteristics correlations with different oxide nanoparticles improving submerged arc welds

open access: yesMaterials Research Express, 2021
The main aim of this research is to correlate the toughness improvement with fracture features of tested Charpy V-Notch impact specimens obtained from submerged arc welds enriched by different oxide nanoparticles (TiO _2 , SiO _2 , Al _2 O _3 and Mn _2 O
A Jiménez-Jiménez   +7 more
doaj   +1 more source

Mas allá de la resolución de problemas

open access: yesEducación Química, 2018
La resolución de problemas es una actividad existencial recurrente, que quizá, por lo mismo, se emprende de manera rutinaria, razón por la cual se ha trabajado explícita e intencionalmente muy poco en la educación, en donde reina desde hace décadas el ...
Armando Rugarcía Torres
doaj   +1 more source

One century of teaching, research, and innovation in chemical engineering in Mexico: The role of chemical engineering in the background and future of polymer science and industrial production in Mexico

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Timeline of key academic milestones and individuals that shaped chemical engineering at FQ‐UNAM and in Mexico. Abstract One hundred years after the beginning of the teaching of Chemical Engineering in Mexico, which started in 1925 in the former National School of Chemical Sciences, currently Faculty of Chemistry (FQ) at National Autonomous University ...
Patricia Pérez‐Salinas   +2 more
wiley   +1 more source

Planeamiento Estratégico Situacional: Su Evolución En El Departamento De Ingeniería Química [PDF]

open access: yes, 2005
El Departamento de Ingeniería Química de la UTN - FRBA viene desarrollando un proceso de autoevaluación y mejoras implementadas sobre la formación del ingeniero químico desde el año 1990.
Celma, Graciela Cristina   +1 more
core  

One hundred years of teaching, research, and innovation in chemical engineering at the Faculty of Chemistry, National Autonomous University of Mexico (UNAM): Birthplace and enduring leadership of the discipline in Mexico

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
The teaching of chemical engineering in Mexico started in 1925 at the Faculty of Chemistry (FQ) of the National Autonomous University of Mexico (UNAM). Academic institutions, research centres, chemical companies, technological developments, highly trained personnel, and scientific contributions are part of the legacy from FQ‐UNAM.
Patricia Pérez‐Salinas   +4 more
wiley   +1 more source

Fractional Photoconduction and Nonlinear Optical Behavior in ZnO Micro and Nanostructures

open access: yesFractal and Fractional, 2023
A fractional description for the optically induced mechanisms responsible for conductivity and multiphotonic effects in ZnO nanomaterials is studied here.
Victor Manuel Garcia-de-los-Rios   +5 more
doaj   +1 more source

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