Browsing by Subject "Porous materials"
Now showing items 1-15 of 15
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Barrier effects of cellulosic fibers with hybrid coating based on zirconium metal-organic framework
(Multidisciplinary Digital Publishing Institute (MDPI), 2022-07-29)
Article
Open AccessMetal-organic frameworks (MOFs) have great potential for the development of fire barriers for flammable materials. Accordingly, zirconium-based metal-organic framework (Zr-MOF), branched polyethyleneimine (BPEI), and ... -
CuGaS2 and CuGaS2–ZnS porous layers from solution-processed nanocrystals
(2018-04-05)
Article
Open AccessThe manufacturing of semiconducting films using solution-based approaches is considered a low cost alternative to vacuum-based thin film deposition strategies. An additional advantage of solution processing methods is the ... -
Diseño de una herramienta porosa para el pulido de superficies ópticas usando programación lineal
(Universitat Politècnica de Catalunya, 2009)
Article
Open AccessEn este trabajo se diseña una nueva herramienta de pulido de superficies ópticas, que hemos llamado porosa, debido a que está formada por perforaciones y postes circulares. El diseño de esta nueva herramienta se basa en ... -
Electromagnetic shielding effectiveness of polycarbonate/graphene nanocomposite foams processed in 2-steps with supercritical carbon dioxide
(2015)
Article
Open AccessThe electromagnetic interference (EMI) shielding properties of polycarbonate/graphene composites foamed with supercritical carbon dioxide were investigated as a function of cellular morphology and graphene particle dispersion. ... -
Enhanced transmission band in periodic media with loss modulation
(2014-11-17)
Article
Open AccessWe study the propagation of waves in a periodic array of absorbing layers. We report an anomalous increase of wave transmission through the structure related to a decrease of the absorption around the Bragg frequencies. ... -
Estudio de las posibilidades de adecuar los procesos de absorción y evaporación del agua por los revestimientos de fachadas en los procesos de lluvia cara a la mejora del microclima urbano
(Universitat Politècnica de Catalunya, 2014-01)
Master thesis
Open AccessCon el incremento de zonas urbanas en el mundo, el fenómeno conocido como isla de calor se ha intensificado, haciéndose cada vez más frecuente y de mayor dimensión. Desde su descubrimiento en 1918, con el inicio de la ... -
F iltration des eaux de chantiers de ter rassement: étude in-vitro des mécanismes de filtration et validation in-situ
(Universitat Politècnica de Catalunya, 2013)
Master thesis (pre-Bologna period)
Restricted access - author's decisionSur les chantiers de terrassement, la mise à nu des sols (décapage de la couche végétale), entraîne lors des évènements pluvieux, une mise en suspension des particules. En absence de traitement, les eaux de ruissellement ... -
High-order HDG formulation with fully implicit temporal schemes for the simulation of two-phase flow through porous media
(John Wiley & Sons, 2021-07-30)
Article
Open AccessWe present a memory-efficient high-order hybridizable discontinuous Galerkin (HDG) formulation coupled with high-order fully implicit Runge-Kutta schemes for immiscible and incompressible two-phase flow through porous ... -
High-order hybridizable discontinuous Galerkin formulation for one-phase flow through porous media
(2021-03-06)
Article
Open AccessWe present a stable high-order hybridizable discontinuous Galerkin (HDG) formulation coupled with high-order diagonal implicit Runge–Kuta (DIRK) schemes to simulate slightly compressible one-phase flow through porous media. ... -
Nanoporous silicon-based surface patterns fabricated by UV laser interference techniques for biological applications
(2016-05-04)
Article
Open AccessThe fabrication of selectively functionalized micropatterns based on nanostructured porous silicon (nanoPS) by phase mask ultraviolet laser interference is presented here. This single-step process constitutes a flexible ... -
On the relationship between connectivity and reaction rates
(Universitat Politècnica de Catalunya, 2012-06)
Master thesis
Open AccessThe presence of connected hydrogeological structures associated with extreme values of permeability typically induces preferential channels that concentrate flow and produce extreme large/small values of travel times. ... -
PS-b-P4VP block copolymer micelles as a soft template to grow openly porous nickel films for alkaline hydrogen evolution
(2022-09-30)
Article
Open AccessHighly porous Ni films have been potentiostatically synthesised by micelle-assisted electrodeposition using custom-made PS-b-P4VP block copolymer micelles as a soft template. Two PS-b-P4VP block copolymers with PS/P4VP ... -
Reactive transport: a review of basic concepts with emphasis on biochemical processes
(2022-02)
Article
Open AccessReactive transport (RT) couples bio-geo-chemical reactions and transport. RT is important to understand numerous scientific questions and solve some engineering problems. RT is highly multidisciplinary, which hinders the ... -
Recycled mortars with ceramic aggregates. Pore network transmutation and its relationship with physical and mechanical properties
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-03-02)
Article
Open AccessThe porosity of mortars with recycled ceramic aggregates (10, 20, 30, 50, and 100% as a replacement of natural aggregate) was evaluated and analyzed using three different techniques. The results of gas adsorption (N2), ...
