2,789 research outputs found
Continuum Modeling and Simulation in Bone Tissue Engineering
Bone tissue engineering is currently a mature methodology from a research perspective.
Moreover, modeling and simulation of involved processes and phenomena in BTE have been proved
in a number of papers to be an excellent assessment tool in the stages of design and proof of concept
through in-vivo or in-vitro experimentation. In this paper, a review of the most relevant contributions
in modeling and simulation, in silico, in BTE applications is conducted. The most popular in silico
simulations in BTE are classified into: (i) Mechanics modeling and sca old design, (ii) transport and
flow modeling, and (iii) modeling of physical phenomena. The paper is restricted to the review of the
numerical implementation and simulation of continuum theories applied to di erent processes in
BTE, such that molecular dynamics or discrete approaches are out of the scope of the paper. Two main
conclusions are drawn at the end of the paper: First, the great potential and advantages that in silico
simulation o ers in BTE, and second, the need for interdisciplinary collaboration to further validate
numerical models developed in BTE.Ministerio de EconomĂa y Competitividad del Gobierno España DPI2017-82501-
A Physical Layer Model for G3-PLC Networks Simulation
This work presents a model of the G3-PLC physical (PHY) layer tailored for network simulations. It allows simulating frequency selective channels with non-stationary colored noise. Collisions with other frames are modeled taking into account the length and the power of the interfering frames. Frame errors are estimated using the effective signal-to-interference-and-noise ratio mapping (ESM) function.
The proposed PHY layer has been integrated into a distributed event-based simulator developed by Microchip. The layer 2+ stack of the simulator uses the same code that actual Microchip G3-PLC devices. Validation has been accomplished by comparing its results to a test network deployed in the laboratory. The latter consists of a coordinator and one hundred meters distributed in 5 levels. Faster-than-real-time simulations and an excellent agreement between the simulated and the measured performance indicators at the application layer have been obtained.Universidad de Málaga. Campus de Excelencia Internacional AndalucĂa Tech
Special Issue on “Biomaterials for Bone Tissue Engineering”
The present Special Issue covers recent advances in the field of tissue engineering applied to bone
tissue. Bone tissue engineering is a wide research topic, so di erent works from di erent transversal
areas of research are shown. This Special Issue is a good example of a multidisciplinary collaboration in
this research field. Authors from di erent disciplines, such as medical scientists, biomedical engineers,
biologists, biomaterial researchers, clinicians, and mechanical engineers, are included from di erent
laboratories and universities across the world. I specially thank the work and time of the reviewers,
listed in Table A1 (in Appendix A), for their time and e orts in reviewing the papers compiled in this
Special Issue.Ministerio de EconomĂa y Competitividad PGC2018-097257-B-C31ConsejerĂa de EconomĂa, Conocimiento, Empresas y Universidad Junta de AndalucĂa US-126169
Policy instruments to promote electro-mobilityiIn the Eu28: A comprehensive review
Despite its environmental benefits, the amount of Electric Vehicles (EVs) in use within the
European Union 28 is still very limited. Poor penetration might be explained by certain factors that
dissuade potential buyers. To balance these factors and promote electro-mobility, Member States
have established incentives to increase demand. However, the various measures are scattered. This
paper contributes to fill the gap in the literature by offering an overall view of the main measures.
The authors will focus on measures to promote electro-mobility within the EU28 until 2014. After an
in-depth and comprehensive review of the relevant measures, the authors conclude that the most
important policy instruments to promote EVs are tax and infrastructure measures in addition to
financial incentives for purchasing and supporting R&D projects. Regardless of the scarcity of EV
registration data, the available information allows us to conclude that higher EV penetration levels
appear in countries where the registration tax, the ownership tax, or both taxes have developed a
partial green tax by including CO2 emissions in the calculation of the final invoice.Junta de AndalucĂa proyecto SEJ-132Ministerio de EconomĂa y Competitividad de España, Cátedra de EconomĂa de la EnergĂa y del Medio Ambiente (Cátedra de EnergĂa y EconomĂa Ambiental) ECO2014-56399-RUniversidad AutĂłnoma de Chil
Colorful Imprints of Heavy States in the Electroweak Effective Theory
We analyze heavy states from generic ultraviolet completions of the Standard
Model in a model-independent way and investigate their implications on the
low-energy couplings of the electroweak effective theory. We build a general
effective Lagrangian, implementing the electroweak symmetry breaking
with a non-linear Nambu-Goldstone
realization, which couples the known particles to the heavy states. We
generalize the formalism developed in previous works~[1,2] to include colored
resonances, both of bosonic and fermionic type. We study bosonic heavy states
with and , in singlet or triplet
representations and in singlet or octet representations of , and
fermionic resonances with that are electroweak doublets and QCD
triplets or singlets. Integrating out the heavy scales, we determine the
complete pattern of low-energy couplings at the lowest non-trivial order. Some
specific types of (strongly- and weakly-coupled) ultraviolet completions are
discussed to illustrate the generality of our approach and to make contact with
current experimental searches.Comment: 51 pages, 2 figures, 12 tables; v2: matches Journal versio
D. Joseph Antonio de Yarza, ..., certifico que, ..., se diĂł y proveyĂł el auto del tenor siguiente, En la villa de Madrid á quince dias del mes de abril de mil setecientos sesenta y un años, los señores del consejo de S.M. y de las salas de govierno de Ă©l, dixeron: que para conservar ilesa la doctrina, escritos, y respetable memoria de ... Juan de Palafox ... para denigrar su fama, con motivo de la quema ... debĂan declarar, y declararon, que la quema de los dos libritos ..
Copia digital. Valladolid : Junta de Castilla y LeĂłn. ConsejerĂa de Cultura y Turismo, 2009-2010Fecha de fin de texto : 1761Nombre del impresor consta en colofĂłnTexto firmado por D. Joseph Antonio de Yarz
La hidráulica kárstica como aplicaciĂłn de la hidrodinámica general. Estudio del flujo en un terreno yesĂfero fisurado
Se pretende plantear y desarrollar algunas de las leyes clásicas de hidrodinámica introduciendo las caracterĂsticas que permiten su aplicaciĂłn al flujo subterráneo en general y a la hidráulica kárstica en particular. Se estudia la consideraciĂłn de si el movimiento del agua subterránea en el karst se puede definir como flujo a travĂ©s de conductos individuales o como un medio continuo con huecos saturados en una matriz sĂłlida. Los trabajos de Hagen (1839) y Poiseuille (1846), junto con los de Darcy (1856) configuran la referencia básica para este estudio (in Crespo, 2006). A ellos puede añadirse tambiĂ©n las aportaciones de Couette y Chezy (Rouse, 1951) para flujo libre sobre superficies rocosas. Se presentan varios casos en los que las leyes del movimiento laminar unidireccional ofrecen soluciones que pueden ser válidas para la definiciĂłn de los parámetros fundamentales del flujo del agua en el subsuelo
Cell-Biomaterial Mechanical Interaction in the Framework of Tissue Engineering: Insights, Computational Modeling and Perspectives
Tissue engineering is an emerging field of research which combines the use of
cell-seeded biomaterials both in vitro and/or in vivo with the aim of promoting new tissue
formation or regeneration. In this context, how cells colonize and interact with the
biomaterial is critical in order to get a functional tissue engineering product. Cell-biomaterial
interaction is referred to here as the phenomenon involved in adherent cells attachment to
the biomaterial surface, and their related cell functions such as growth, differentiation,
migration or apoptosis. This process is inherently complex in nature involving many
physico-chemical events which take place at different scales ranging from molecular to
cell body (organelle) levels. Moreover, it has been demonstrated that the mechanical
environment at the cell-biomaterial location may play an important role in the subsequent
cell function, which remains to be elucidated. In this paper, the state-of-the-art research in
the physics and mechanics of cell-biomaterial interaction is reviewed with an emphasis on
focal adhesions. The paper is focused on the different models developed at different scales
available to simulate certain features of cell-biomaterial interaction. A proper understanding
of cell-biomaterial interaction, as well as the development of predictive models in this sense,
may add some light in tissue engineering and regenerative medicine fields.Ministerio de Ciencia y TecnologĂa DPI2010-20399-C04-0
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