Results 41 to 50 of about 1,813,329 (243)

Current Tracking Adaptive Control of Brushless DC Motors

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García   +3 more
wiley   +1 more source

Device Performance of Emerging Photovoltaic Materials (Version 6)

open access: yesAdvanced Energy Materials, EarlyView.
Efficiency of single junction perovskite (circles), organic (hexagons), dye sensitized (pentagons), kesterite (diamonds), Sb2Se3 (right triangle), and AgBiS2 (left triangles) solar cells at emerging‐pv.org over the last decade. ABSTRACT This 6th annual Emerging PV Report surveys peer‐reviewed advances since August 2024 across perovskite, organic ...
Osbel Almora   +29 more
wiley   +1 more source

La investigación más allá de las fronteras: propuesta para constituir redes académicas de los CA y grupos de investigación / Research beyond the Borders: Proposal to Establish Academic Networks and Research Groups CA

open access: yes, 2016
The development of research beyond institutional boundaries resinify collaborative academic work, networking with Higher Education Institutions (HEI) and enhances the academic work between researchers, teachers and students to identify and solve problems
René López Auyón   +2 more
semanticscholar   +1 more source

Territorios y paisajes en(red)ados en América Latina. Desafíos y tensiones en la formación de redes para la internacionalización universitaria [PDF]

open access: yes, 2017
El presente trabajo analiza el proceso de conformación de dos redes académicas dispuestas a pensar los territorios y paisajes rurales de América Latina.
Pastor, Gabriela, Torres, Laura
core   +1 more source

Knowledge Management: Experiences in Academic and Clinic Environments [PDF]

open access: yes, 2014
This article describes the knowledge management practices derived from clinical research, and some hospitals and academic institutions in Colombia. The profile of these institutions and the variables involved in knowledge management and research are ...
Israel Cruz Velandia   +2 more
core   +2 more sources

Dental development in the tropical gar (Atractosteus tropicus) and the evolution of vertebrate dentitions

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Dentitions have diversified enormously during vertebrate evolution, involving reductions, modifications, or allocations to prey seizing and processing regions. A combination of ancient and novel features related to dental and oropharyngeal apparatuses is found in extant lineages of non‐teleost fishes, such as the gars.
Anna Pospisilova   +4 more
wiley   +1 more source

REDES ACADÉMICAS GENERADAS POR LAS TESIS DOCTORALES DE EDUCACIÓN MATEMÁTICA EN ESPAÑA

open access: yes, 2012
Introduction. We present a study of the academic networks generated by PhD theses on mathematics education read in Spain from 1976 until 2009. Objectives.
Alexander Maz-Machado   +6 more
semanticscholar   +1 more source

Uso de redes sociales como elemento de interacción y construcción de contenidos en el aula: cultura participativa a través de Facebook. [PDF]

open access: yes, 2014
Today, it is necessary to innovate in the classroom with resources used by digital natives. This innovation must be present as a motivator in classrooms; therefore, to implement it is currently a challenge.
Alvarez-Flores, Erika P.   +1 more
core   +2 more sources

Sulfur‐Rich μ‐O Diiron Catalyst for Electrochemical Hydrogen Production

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
A diferric μ‐oxido complex supported by a sulfur‐rich scaffold acts as a proton‐reduction electrocatalyst for H2 production via a μ‐hydroxido species. An aminodithiophenolate scaffold with an NS2 donor set supports diiron complex formation. The diferrous precursor activates O2, giving rise to a diferric μ‐oxido species, which acts as a proton‐reduction
Hugo C. Hernández‐Toledo   +7 more
wiley   +1 more source

Analysis of academic networks and scientific trends in communication in Spanish universities [PDF]

open access: yes, 2018
La producción científica en comunicación se ha incrementado en España en los últimos años, tal como señalan diversos estudios sobre la creación de grupos de investigación, redes de investigadores/as y tipologías de investigación (Martínez-Nicolás y ...
De-las-Heras-Pedrosa, Carlos   +2 more
core   +1 more source

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