Results 11 to 20 of about 4,775 (117)

Generation and Characterization of Vector Beams with a Single SLM for Super-Resolution Microscopy [PDF]

open access: yesEPJ Web of Conferences
We present a method to generate vector beams using a single spatial light modulator (SLM) for depletion-based super-resolution microscopy techniques such as STED, RESOLFT, and subtraction microscopy.
Toledo-García Nick   +5 more
doaj   +1 more source

A Monte Carlo study of proton LET calculations: Comparison between the codes PENHAN, FLUKA, and TOPAS. [PDF]

open access: yesMed Phys
Abstract Background Linear energy transfer (LET) is frequently used to characterize radiation quality in proton therapy and is an important quantity for radiobiological modeling. However, LET calculations can, in principle, vary between Monte Carlo (MC) codes, affecting consistency in treatment planning and relative biological effectiveness (RBE ...
Puerta D, Anguiano M, González W.
europepmc   +2 more sources

Thermodynamic Performance of a Brayton Pumped Heat Energy Storage System: Influence of Internal and External Irreversibilities

open access: yesEntropy, 2021
A model for a pumped thermal energy storage system is presented. It is based on a Brayton cycle working successively as a heat pump and a heat engine. All the main irreversibility sources expected in real plants are considered: external losses arising ...
David Pérez-Gallego   +3 more
doaj   +1 more source

Depósito de capas de nitruro de carbono mediante ablación láser

open access: yesRevista de Metalurgia, 1998
Se presenta la preparación de capas finas de nitruro de carbono mediante la ablación de diferentes tipos de blancos (grafito, guanazol) en una atmósfera reactiva de amoniaco utilizando un láser de excímero de ArF (193 nm).
R. Soto   +4 more
doaj   +1 more source

Producción de recubrimientos de fosfato cálcico mediante ablación láser para aplicaciones biomédicas

open access: yesRevista de Metalurgia, 1998
Los fosfatos cálcicos apatíticos se utilizan como recubrimientos para mejorar la fijación de implantes ortopédicos y dentales. La técnica comercial para la producción de estos recubrimientos (plasma-spray) presenta problemas de adherencia y control de ...
M. B. Mayor   +5 more
doaj   +1 more source

Thermodynamics of spherically symmetric black holes in scale-dependent gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
In this work we extend the first law of thermodynamics to spherically symmetric black hole solutions in the context of scale-dependent gravity. After deriving generalized expressions for both the entropy and energy due to the spatial variation of the ...
P. Bargueño, J. A. Miralles, J. A. Pons
doaj   +1 more source

Características dimensionales de soldaduras formadas sobre el acero AIS11045 mediante la aplicación del láser diodo de alta potencia

open access: yesRevista de Metalurgia, 2004
El denominado láser diodo de alta potencia (LDAP) emite un haz de energía óptica generada mediante la estimulación de diodos y ofrece la capacidad de suministrar niveles de potencia hasta de 6 kW. El objetivo de este trabajo de investigación fue estudiar
A. Sánchez-Castillo   +7 more
doaj   +1 more source

Study of the dynamic behaviour of the Sancti Petri Channel, southwest coast of Spain

open access: yesCiencias Marinas, 2005
The dynamic behaviour of the Sancti Petri tidal channel (southwest coast of Spain), which is open at both ends and connected to water bodies with different dynamic characteristics (Atlantic Ocean and Cádiz Bay), is studied herein.
J Vidal, B Tejedor
doaj   +1 more source

General application of the genetic algorithm to the estimation of the Liquid Crystal Director in PA-LC devices [PDF]

open access: yesEPJ Web of Conferences, 2023
The study of liquid crystal (LC) director distribution is an important area of research in materials science and technology. Parallel-aligned liquid crystal (PA-LC) devices have been extensively studied due to their applications in liquid crystal ...
Colomina Jaume   +7 more
doaj   +1 more source

Producción y tratamiento de películas de Si1-xGex mediante técnicas asistidas por láser de excímero

open access: yesRevista de Metalurgia, 1998
El creciente interés que suscita la búsqueda de nuevas técnicas para la obtención de materiales semiconductores, compatibles con la tecnología del silicio, ha llevado a desarrollar un sistema de depósito y postprocesado en alto vacío (HV) de Si-Ge ...
J. Castro   +7 more
doaj   +1 more source

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