Results 31 to 40 of about 1,673 (283)

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

open access: yesAdvanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang   +7 more
wiley   +1 more source

Traction Force Microscopy for Viscoelastic Substrates: A Semi‐Analytical Method

open access: yesAdvanced Science, EarlyView.
A semi‐analytical viscoelastic traction force microscopy framework is introduced for quantifying time‐resolved cell tractions on flat finite‐thickness substrates. The method generalizes elastic traction force microscopy to Generalized Maxwell materials, identifies when elastic approximations remain valid and, when they do not, shows that inferred ...
Adrià Villacrosa‐Ribas   +10 more
wiley   +1 more source

Derivación del modelo de precios por arbitraje (ATP)

open access: yesEstudios de Administración, 1995
El propósito de esta nota es el de clarificar un aspecto de álgebra lineal que aparece en el desarrollo de la teoría de arbitraje de Ross 1976, como se presenta, por ejemplo, en copeland y Weston 1988.
Jorge Gregoire C., Salvador Zurita L.
doaj   +1 more source

Ambiente virtual de aprendizaje como recurso evaluador: Una experiencia en álgebra lineal

open access: yesEducare, 2022
Esta investigación tuvo como objetivo establecer si evaluar el Álgebra Lineal haciendo uso de un ambiente virtual de aprendizaje diseñado en la aplicación web Moodle facilita a los estudiantes obtener mejores resultados de aprendizaje en la asignatura ...
Jhon Herminson Arias-Rueda   +1 more
doaj   +1 more source

Physics‐Constrained Constitutive Learning of Rate‐Limiting Timescales for Efficient Hydrogen‐Based Direct Reduction for Green Steel Making

open access: yesAdvanced Science, EarlyView.
A conversion‐resolved constitutive framework is developed for the hydrogen‐based direct reduction of iron oxide pellets. Effective reaction and transport timescales are inferred directly from measured trajectories and mapped against operating conditions, pellet architecture, and composition. The analysis reveals how late‐stage transport control emerges
Anurag Bajpai   +3 more
wiley   +1 more source

Aprendizaje basado en la investigación en la evaluación con rúbricas en algebra lineal

open access: yesCiencia Latina Revista Científica Multidisciplinar, 2022
El estudio muestra resultados obtenidos en el área de investigación formativa en estudiantes de educación superior. El objetivo fue determinar la influencia del aprendizaje basado en la investigación en los resultados de la evaluación mediante rubricas en álgebra lineal en estudiantes de Matemática–Física de la UNDAC.
openaire   +1 more source

TRIM: Simultaneous Thermometry, Ranging, and Imaging via a Monolithic Metalens

open access: yesAdvanced Science, EarlyView.
ABSTRACT While metasurfaces offer a pathway beyond the discrete architectures of conventional LWIR systems, physically fusing high‐precision thermometry and passive ranging onto a single metalens remains a formidable challenge. Here, we demonstrate a monolithic, dual‐focus metalens capable of simultaneous multidimensional sensing.
Man Yuan   +10 more
wiley   +1 more source

Beyond Percolation: Graphene‐Enabled Network Reinforcement Enhances Thermal Transport in Paraffin Phase‐Change Composites

open access: yesAdvanced Science, EarlyView.
Expanded‐graphite/graphene‐nanoplatelet hybrids deliver a near‐order‐of‐magnitude thermal‐conductivity enhancement in paraffin phase‐change materials. A microCT‐informed 3D modeling framework resolves the percolating EG backbone and captures sub‐voxel GNP enrichment, quantitatively linking microstructure to heat flow and revealing a graphene‐enabled ...
Thomas Hoke   +4 more
wiley   +1 more source

Algebra Lineal - Examen Final

open access: yes, 2012
Examen Final de Algebra Lineal. Elaborado por el profesor Fernando Posso Gómez de la Facultad de Ingeniería del Departamento de Matemáticas y Estadística.
Posso Gómez, Fernando
core   +1 more source

Á́lgebra lineal y descomposición en valores singulares

open access: yesModelling in Science Education and Learning, 2015
En este trabajo presentamos una propuesta entorno a cómo se puede utilizar la Descomposición en  valores singulares de una matriz para desarrollar un temario de una asignatura de Álgebra lineal en un grado de ingeniería.
Jose Manuel Calabuig   +2 more
doaj   +1 more source

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