Porous layers
Highly porous layers of silica nanospheres sintered by drying: scaling up of the elastic properties of the beads to the macroscopic mechanical properties
... Layers obtained by drying a colloidal dispersion of silica spheres are found to be a good benchmark to test the elastic behaviour of porous media, in the challenging case of high porosities and nano-sized ...
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Establishing Accuracy of Watershed-Derived Pore Network Extraction for Characterizing In-Plane Effective Diffusivity in Thin Porous Layers
... tive diffusivity measurements as a function of porosity reported by Rashapov et al. for SGL 25AA and SGL 34AA GDLs were used and fitted to a power law. The effective diffusivities computed from the pore network ...
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COMPUTATION OF POROSITY REDISTRIBUTION RESULTING FROM THERMAL-CONVECTION IN SLANTED POROUS LAYERS
... L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignemen[r] ...
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Modifications of MXene layers for supercapacitors
... layers (Fig.4a), the pyrolysis of MXene/urea composite obviously generate numerous macro-pores through the layers, i.e. perpendicular to the surface (Fig.4b-4d). The resulting 3D structure based on a ...
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POROUS SILICON AMMONIA GAS SENSOR
... the porous structure of the waveguide is achieved by means of a S-2500 Hitachi ...the porous structure which will be functionnalised later is well observed in the ...two porous layers can be ...
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Modifications of MXene layers for supercapacitors
... fiat layers of the pristine MXene are the less favorable material design in the series as nothing, in such a case, can prevent the natural trend of the layers to self-assemble in a re-stacked ...MXene ...
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Control in fluid mechanics and boundary layers
... equations in fluid mechanics. We are mostly interested in Burgers equation and Navier-Stokes equa- tion. Our main goal is to prove small-time global results, even in the presence of boundary layers. We prove that ...
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Frost action in porous systems
... Furthermore, because the difference in the vapour pressures of supercooled water and of ice increases with decreasing temperature the equilibrium water content of porous bodies falls s[r] ...
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Porous diamond pouch cell supercapacitors
... of porous diamond based materials, it can be processed homogeneously on 4 inches surfaces and thus offers a clear advantage in terms of ...such porous diamond film, known as SPDia TM , was integrated into a ...
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Desorption behaviour of regular adsorbed polyampholytic layers
... Figure 1. Chemical structure of the investigated polyampholyte PMAA-b-PDMAEMA. The silicon wafers were alkaline pretreated by using a mixture of NH3 and H2O2 in MilliQ water. After this cleaning procedure the IEP of the ...
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Reactive Transport in Porous Media
... It is known that the method just described is convergent, ans it has been demonstrated that it can be used for porous media, and that is gives an accurate velocity field, see the above references. 2.1.2. Chemical ...
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Vertical multilayer structures based on porous silicon layers for mid-infrared applications
... PSi layers were fabricated for Mid- IR wavelength ...thick layers, real and imaginary parts of the refractive index of these films of different porosities were obtained in the Mid-IR wavelength ...PSi ...
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Viscous friction of squeezed bubbly liquid layers
... * corresponding author Abstract: Shear viscosity of bubbly liquids is known to depend on both the gas volume fraction and the capillary number. Here we study the impact of confinement on their behavior by investigating ...
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Hydrodynamic dispersion within porous biofilms
... fictitious weighted viscosity within the biofilm phase, µ b = γ µ f with γ > 1. Kapellos et al. [ 16 ] developed a simulator that couples a cellular automaton with multiscale methods. They used a single-domain ...
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Inertial Sensitivity of Porous Microstructures
... inertia on the filtration law. Further, we find that a possible application of this new scaling is the derivation of a correction to Darcy’s law for weakly inertial flows in highly anisotropic porous media, where ...
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The Multiple Layers of the Tumor Environment
... six layers of environmental interactions with the tumor and show that they are associated with specific location-related mechanisms, and ultimately with distinct therapeutic ...these layers, but rather ...
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Decomposing Broadcast Algorithms Using Abstract MAC Layers
... Recently, Kuhn et al. proposed a new approach with the goal of combining the advantages of both previous approaches, while avoiding their major problems [1, 2, 8, 9]. Namely, they defined an Abstract MAC Layer service ...
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Controlling Edge Morphology in Graphene Layers Using Electron Irradiation: From Sharp Atomic Edges to Coalesced Layers Forming Loops
... adjacent layers in the annealed materials is the topic of a growing debate that this Letter aims to put to ...nanoribbon layers do not coalesce when Joule heating is applied after high-energy electrons ...
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Scanning tunneling measurements of layers of superconducting 2H-TaSe2: Evidence for a zero-bias anomaly in single layers
... Temperature (K) FIG. 9. (Color online) The temperature dependence of the gap observed in multilayer 2H -TaSe 2 is shown as open black points at the left axis. The gap (T ) is normalized to its value at low temperatures. ...
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Decomposing broadcast algorithms using abstract mac layers
... Our analysis of the high-level multi-message broadcast algo- rithm is sufficiently hard that we think it would have been infeasible without such a decomposition. Thus, we believe that this approach enables analysis of ...
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