Browsing Artículos científicos by Title
Now showing items 1-20 of 35
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A Collaborative Effort Between Caribbean States for Tsunami Numerical Modeling: Case Study CaribeWave15
(Pure and Applied Geophysics vol.175 no.2 1405-1428 2017, 2017)Historical records have shown that tsunami have affected the Caribbean region in the past. However infrequent, recent studies have demonstrated that they pose a latent hazard for countries within this basin. The Hazard ... -
A combined experimental and theoretical study of gas sorption on nanoporous silver triazolato metal-organic frameworks
(2014-01-01)A new silver-triazolate metal-organic framework (MOF), {Ag 3[Ag5(μ3-3,5-tBu 2tz)6](BF4)2}n (2), has been prepared and structurally characterized. The CO2 sorption properties of this new MOF and previously reported isostructural ... -
A combined first-principles computational/experimental study on LiNi 0.66Co 0.17Mn 0.17O 2 as a potential layered cathode material
(Elsevier, 2012-08-01)First-principles calculations are used to analyze the phase stability, formation energy, and Li intercalation potential for a series of layered cathode materials. The calculations show LiNi 0.66Co 0.17Mn 0.17O 2 as a ... -
Characterization of the VARIAN®PaxScan 2020+ flat panel detector for quantitative X-ray imaging
(X-Ray Spectrometry vol.45 no.3 169-175 2016, 2016-02-19)In this work, the response of the VARIAN® PaxScan 2020+ flat panel detector was characterized in terms of spatial resolution and uniformity across the detection area along with detection efficiency for photon beams from ... -
Connecting bioloy, optics and nanomechanical properties in micro-wasps
(Springer Nature, 2020-01-29)Coloration in insects provides a fruitful opportunity for interdisciplinary research involving both physics and biology, and for a better understanding of the design principles of biological structures. In this research ... -
Effect of inorganic salts and matrix crosslinking on the dose response of polymer gel dosimeters based on acrylamide
(Elsevier Ltd, 2018-07-17)The use of additives in polymer gel dosimeters to enhance their sensitivity or to improve their performance is of great importance for their application in radiomedicine. Inorganic salts have been used as additives with ... -
Efficiency measurement and Monte Carlo simulations of a CeBr3 scintillator
(Applied Radiation and Isotopes Vol.120. 71-75 2016, 2016-11)CeBr3 crystals meet many of the demands of high performance scintillators, due to their excellent timing properties, good effective Z and high photon yield. It is important to characterize their efficiency and to verify ... -
Electrochemical Hydrogen Oxidation on Pt(100): a Combined Direct Molecular Dynamics/Density Functional Theory Study
(Electrocatalysis, 2015-08-09)We have studied the hydrogen oxidation reaction on various catalytic sites at the water/Pt(100) interface with first-principles direct molecular dynamics and minimum energy pathway calculations. The calculations indicate ... -
Evaluación de fuentes tsunamigénicas en el sur de Centroamérica y la generación de mapas de evacuación en la costa Pacífica de Costa Rica
(Geo - Network of Latinomerican - German alumi (GOAL) 7-10 2015, 2015)Costa Rica se encuentra en el extremo oeste de la placa Caribe, en el sur de América Central. En esta región se da la interacción de cuatro placas tectónicas. La placa Cocos se subduce bajo la placa Caribe y la microplaca ... -
Evaluación de la peligrosidad del tsunami de Chile del 16 de setiembre del 2015 para Costa Rica
(Revista Ciencias Marinas y Costeras vo.8 no.1 113-128 2016, 2016)A Mw 8.3 earthquake took place in Chile on September 16th, 2015 causing a local tsunami. As a consequence, this earthquake prompted the National Tsunami Monitoring System (SINAMOT) in Costa Rica to conduct a tsunami hazard ... -
Evaluating SODA for Indo-Pacific Ocean decadal climate variability studies
(Journal of Geophysical Research: Oceans, 2014-10-31)Estimates of changes in upper ocean temperature, heat content, and sea level are dependent on the coverage of subsurface observations in space and time. Historically, these data are sparse, which has limited our understanding ... -
Evaluation of volume change in rectum and bladder during application of image-guided radiotherapy for prostate carcinoma
(AIP Conference Proceedings, 2016-07-07)All prostate cancer patients from Centro Médico Radioterapia Siglo XXI receive Volumetric Modulated Arc Therapy (VMAT). This therapy uses image-guided radiotherapy (IGRT) with the Cone Beam Computed Tomography (CBCT). This ... -
Experimental validation of gallium production and isotope-dependent positron range correction in PET
(Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment vol.814 110-116 2016, 2016-04-01)Positron range (PR) is one of the important factors that limit the spatial resolution of positron emission tomography (PET) preclinical images. Its blurring effect can be corrected to a large extent if the appropriate ... -
Factores que influyen en la forma de la cola de un tsunami
(UNICIENCIA Vol. 23 65-69, 2009)The propagation speed of a tsunami depends on the depth of the ocean in which it propagates. As the tsunami crosses the abyssal plain, it suffers modifications in its form due to change in the depths of the ocean bottom. ... -
Graphene flakes obtained by local electro-exfoliation of graphite with a STM tip
(Physical Chemistry Chemical Physics vol.11 no.19 8061-8068 2017, 2017-02-24)Graphite surfaces can be manipulated by several methods to create graphene structures of different shapes and sizes. Scanning tunneling microscopy (STM) can be used to create these structures either through mechanical ... -
Hidrography and river plumes in Golfo Dulce, South Pacific of Costa Rica
(Universidad de Costa Rica, 2015-07)Oceanographic variables at 33 stations distributed in Golfo Dulce, Costa Rica, during the dry and rainy seasons between 2009 and 2010, were analyzed with CTD profiles, where salinity, temperature, sigma-T and currents were ... -
Importancia de la batimetría de las planicies abisales en la propagación de tsunamis transoceánicos
(Ciencia y tecnología Vol.25,No.1-2 22-33, 2007)The initial form of a tsunami originated by an homogeneous seismic source consists on a simple wave front. While the tsunami propagates in deep water, this simple form suffers several modifications ... -
Metodología para la Evaluación de Rutas de Evacuación en caso de Tsunami Aplicado a la Costa del Pacífico Norte y Central de Costa Rica
(Revista en Torno a la Prevención no.16 17-26 2016, 2016)Se ha diseñado un método con el objetivo de elaborar una cartografía de rutas de evacuación en caso de tsunami a escala 1:10.000, basado en las directrices establecidas por la Comisión Europea. Las áreas de estudio son las ... -
Modeling a tsunami from the Nicoya, Costa Rica, seismic gap and its potential impact in Puntarenas
(Journal of South American Earth Sciences .Vol.31 No.4 372-382, 2011)Although subduction zones around the world are known to be the source of earthquakes and/or tsunamis, not all segments of these plate boundaries generate destructive earthquakes and catastrophic tsunamis. Costa Rica, in ... -
Multiparticle emission in the decay of Ar 31
(American Physical Society, 2014-06-25)A multihit capacity setup was used to study the decay of the dripline nucleus 31Ar, produced at the ISOLDE facility at CERN. A spectroscopic analysis of the β-delayed three-proton decay of 31Ar is presented for the first ...
