Results 11 to 20 of about 88,729 (198)

El uso del algebra matricial en la ingeniería

open access: yesCiencia y Sociedad, 1990
Esta nota analiza el uso del algebra matricial en la ingenieria, durante mucho tiempo se considero que el algebra de matrices era una de las herramientas mas poderosas con que contaba el ingeniero, dada a su complejidad de sus operaciones, resultaba muy ...
Daniel Comarazamy
doaj   +1 more source

Biocomposites Based on Thermoplastic Starch and Granite Sand Quarry Waste [PDF]

open access: yes, 2019
Granite stone is a by-product of the rock crushing manufacturing. An industrial waste in powder form that causes health problems and environmental pollution. Fine particles fraction can be used as a partial replacement of sand in concrete manufacture. In
Irassar, Edgardo Fabián   +7 more
core   +1 more source

Ingeniería tisular y miocardio bioartificial

open access: yesCirugía Cardiovascular, 2011
La regeneración cardíaca requiere una cascada compleja de acontecimientos con numerosos factores, la mayoría aún no clarificados, que limitan la terapia celular y su traslación a la práctica clínica.
Juan Carlos Chachques   +6 more
doaj   +1 more source

Structural analysis of magnetic nanocomposites based on chitosan [PDF]

open access: yes, 2018
This work investigates the structure and magnetic properties of chitosan based films with different contents of magnetic nanoparticles (MNPs) of around 10 nm as well as the effects of the addition of glycerol as plasticizer.
Kloster, Gianina Andrea   +5 more
core   +2 more sources

Oregano essential oil-pectin edible films as anti-quorum sensing and food antimicrobial agents [PDF]

open access: yes, 2014
Edible films can be used as carriers for antimicrobial compounds to assure food safety andquality; in addition, pathogenesis of food bacteria is related to a cell to cell communicationmechanism calledquorum sensing(QS).
Alvarez, María Victoria   +8 more
core   +2 more sources

Formulación matricial en Acústica: el método de la matriz de transferencia

open access: yesModelling in Science Education and Learning, 2019
Las matrices se introducen en asignaturas de Matemáticas relacionadas fundamentalmente con los contenidos relativos a los espacios vectoriales y el álgebra lineal en donde las matrices aparecen desconectadas de sus aplicaciones en otros campos de la ...
Iván Herrero-Durá   +3 more
doaj   +1 more source

MIMO PID Controller Tuning Method for Quadrotor Based on LQR/LQG Theory [PDF]

open access: yes, 2019
In this work, a new pre-tuning multivariable PID (Proportional Integral Derivative) controllers method for quadrotors is put forward. A procedure based on LQR/LQG (Linear Quadratic Regulator/Gaussian) theory is proposed for attitude and altitude ...
Guardeño Ramírez, Rafael   +2 more
core   +2 more sources

Model-based observer proposal for surface roughness monitoring [PDF]

open access: yes, 2020
Comunicación presentada a MESIC 2019 8th Manufacturing Engineering Society International Conference (Madrid, 19-21 de Junio de 2019)In the literature, many different machining monitoring systems for surface roughness and tool condition have been proposed
Abellán-Nebot, José V.   +2 more
core   +1 more source

State-dependent changes of connectivity patterns and functional brain network topology in Autism Spectrum Disorder [PDF]

open access: yes, 2012
Anatomical and functional brain studies have converged to the hypothesis that Autism Spectrum Disorders (ASD) are associated with atypical connectivity.
Barttfeld, Pablo   +6 more
core   +2 more sources

Effect of pH and nanoclay content on the morphology and physicochemicalproperties of soy protein/montmorillonite nanocomposite obtained byextrusion [PDF]

open access: yes, 2018
The present work attempts to clarify the influence of montmorillonite nanoclay content and pH on the me-chanical properties of extruded soy protein nanocomposites.
Félix Ángel, Manuel   +4 more
core   +1 more source

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