Results 31 to 40 of about 4,560 (180)

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

Molecules, 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, Raúl Ocampo-Pérez, Erika Padilla-Ortega, Diakaridia Sangaré, Miguel A. Escobedo-Bretado, Jorge L. Domínguez-Arvizu, Blanca C. Hernández-Majalca, Jesús M. Salinas-Gutiérrez, Alejandro López-Ortiz, Virginia Collins-Martínez   +9 more
doaj   +1 more source

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

Materials 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, A M Paniagua-Mercado, A García-Bórquez, A S De Ita-De la Torre, C Mejía-García, V M López-Hirata, M L Saucedo-Muñoz, E Miguel-Díaz   +7 more
doaj   +1 more source

Mas allá de la resolución de problemas

Educación 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

Caracterización de las prácticas académicas del Programa de Ingeniería Química basada en resultados de aprendizaje, años 2018 a 2022 [PDF]

, 2023
RESUMEN : Los cambios que se presentan actualmente a nivel mundial en ciencia y tecnología nos llevan a considerar que el proceso educativo también debe evolucionar, por esto se hace necesario incluir indicadores que determinen si los estudiantes ...
Uribe Restrepo, María Isabel
core  

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

The 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, Alberto Rosas‐Aburto, Eduardo Vivaldo‐Lima   +2 more
wiley   +1 more source

Fractional Photoconduction and Nonlinear Optical Behavior in ZnO Micro and Nanostructures

Fractal 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, Jose Alberto Arano-Martínez, Martin Trejo-Valdez, Martha Leticia Hernández-Pichardo, Mónica Araceli Vidales-Hurtado, Carlos Torres-Torres   +5 more
doaj   +1 more source

The Hot Ductility, Microstructures, Mechanical Properties and Corrosion Resistance in an Advanced Boron-Containing Complex Phase Steel Heat-Treated Using the Quenching and Partitioning (Q&P) Process

Metals, 2023
The objective of this research work is to obtain the hot ductility behavior, and the structural, microstructural and mechanical characteristics of one of the latest generation of AHSS steels, a complex phase (CP) steel microalloyed with boron (0.006 wt.%)
Antonio Enrique Salas-Reyes, Gerardo Altamirano-Guerrero, Rogelio Deaquino, Armando Salinas, Gabriel Lara-Rodriguez, Ignacio Alejandro Figueroa, Jesús Rafael González-Parra, Barrie Mintz   +7 more
doaj   +1 more source

Dual process for improved recovery of essential oil and pectin from citrus waste

Journal of Chemical Technology &Biotechnology, Volume 101, Issue 7, Page 1439-1447, July 2026.
Abstract BACKGROUND Citrus essential oils (EO), particularly orange essential oil (OEO) and pectin, are high‐value chemical products widely used across various industries, including pharmaceuticals, food and beverages, detergents, and cosmetics. These compounds are present in the residual by‐products generated by juice production industries, and their ...
Jorge Welti‐Chanes, Oscar Hernández‐Meléndez, Mariana Morales‐de la Peña, Eduardo Bárzana   +3 more
wiley   +1 more source

UN EJEMPLO DE INTEGRACIÓN REGIONAL Movilidad e Intercambio [PDF]

, 2007
Las Universidades Nacionales del NOA, desde las Unidades Académicas que ofrecen carreras de Ingeniería, elaboraron propuestas con el objeto de promover la constitución de ámbitos de reflexión y planificación sobre articulación y flexibilización de planes
AUAT, Nori E. CHEEIN de, Luaces, Lilia S. Cañetes de, VARONE, Mario R.   +2 more
core  

Functional divergence drives the prevalence of low‐abundance species in bat assemblages

Functional Ecology, Volume 40, Issue 6, Page 1587-1602, June 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecological communities are structured by a few common species, while most occur at low abundance. Understanding the drivers of this widespread pattern raises fundamental questions about community assembly rules and is important for applied ecology for identifying ...
Andrés F. Ramírez‐Mejía, Francisco Sánchez, J. Nicolás Urbina‐Cardona, Natalia Ladino   +3 more
wiley   +1 more source