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Articles de revues sur le sujet "Interactions de surface":
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Turov, V. V., V. M. Gun’ko, T. V. Krupskaya, I. S. Protsak, L. S. Andriyko, A. I. Marinin, A. P. Golovan, N. V. Yelagina et N. T. Kartel. « Interphase interactions of hydrophobic powders based on methilsilica in the water environment ». Surface 12(27) (30 décembre 2020) : 53–99. http://dx.doi.org/10.15407/surface.2020.12.053.
Using modern physicochemical research methods and quantum chemical modeling, the surface structure, morphological and adsorption characteristics, phase transitions in heterogeneous systems based on methylsilica and its mixtures with hydrophilic silica were studied. It is established that at certain concentrations of interfacial water, hydrophobic silica or their composites with hydrophilic silica form thermodynamically unstable systems in which energy dissipation can be carried out under the influence of external factors: increasing water concentration, mechanical loads and adsorption of air by hydrophobic component. When comparing the binding energies of water in wet powders of wettind-drying samples A-300 and AM-1, which had close values of bulk density (1 g/cm3) and humidity (1 g/g), close to 8 J/g. However, the hydration process of hydrophobic silica is accompanied by a decrease in entropy and the transition of the adsorbent-water system to a thermodynamically nonequilibrium state, which is easily fixed on the dependences of interfacial energy (S) on the amount of water in the system (h). It turned out that for pure AM-1 the interfacial energy of water increases in proportion to its amount in the interparticle gaps only in the case when h < 1 g/g. With more water, the binding energy decreases abruptly, indicating the transition of the system to a more stable state, which is characterized by the consolidation of clusters of adsorbed water and even the formation of a bulk phase of water. Probably there is a partial "collapse" of the interparticle gaps of hydrophobic particles AM-1 and the release of thermodynamically excess water. For mixtures of hydrophobic and hydrophilic silica, the maximum binding of water is shifted towards greater hydration. At AM1/A-300 = 1/1 the maximum is observed at h = 3g/g, and in the case of AM1/A-300 = 1/2 it is not reached even at h = 4 g/g. The study of the rheological properties of composite systems has shown that under the action of mechanical loads, the viscosity of systems decreases by almost an order of magnitude. However, after withstanding the load and then reducing the load to zero, the viscosity of the system increases again and becomes significantly higher than at the beginning of the study. That is, the obtained materials have high thixotropic properties. Thus, a wet powder that has all the characteristics of a solid after a slight mechanical impact is easily converted into a concentrated suspension with obvious signs of liquid.
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Hunt, John A., et Molly Shoichet. « Biomaterials : surface interactions ». Current Opinion in Solid State and Materials Science 5, no 2-3 (avril 2001) : 161–62. http://dx.doi.org/10.1016/s1359-0286(01)00012-2.
A, J. B. « Molecule surface interactions ». Journal of Molecular Structure 249, no 2-4 (septembre 1991) : 391. http://dx.doi.org/10.1016/0022-2860(91)85082-e.
Goeckner, M. J., C. T. Nelson, S. P. Sant, A. K. Jindal, E. A. Joseph, B. S. Zhou, G. Padron-Wells, B. Jarvis, R. Pierce et L. J. Overzet. « Plasma-surface interactions ». Journal of Physics : Conference Series 133 (1 octobre 2008) : 012010. http://dx.doi.org/10.1088/1742-6596/133/1/012010.
Erath, Johann, Jiaxi Cui, Jasmin Schmid, Michael Kappl, Aránzazu del Campo et Andreas Fery. « Phototunable Surface Interactions ». Langmuir 29, no 39 (19 septembre 2013) : 12138–44. http://dx.doi.org/10.1021/la4021349.
Annich, G. M., B. Ashton, S. I. Merz, D. O. Brant et R. H. Bartlett. « PLATELET/SURFACE INTERACTIONS ». ASAIO Journal 46, no 2 (mars 2000) : 234. http://dx.doi.org/10.1097/00002480-200003000-00332.
Chang, J. P., et J. W. Coburn. « Plasma–surface interactions ». Journal of Vacuum Science & ; Technology A : Vacuum, Surfaces, and Films 21, no 5 (septembre 2003) : S145—S151. http://dx.doi.org/10.1116/1.1600452.
This thesis is concerned with the fundamental principles affecting protein adsorption. The effects of surface chemistry and topography on protein adsorption characteristics have been identified and quantified. Particular attention has been made to understand how the conformation of surface-bound proteins was affected by the surface onto which they adsorbed. Quartz crystal microbalance (QCM), UV-Vis spectroscopy and fluorometry were used to assess protein-surface affinity and amounts of protein adsorbed at surface saturation levels. Infrared spectroscopy was used to quantify protein conformational changes incurred upon adsorption. A fluorescent assay protocol was developed for use as an external calibration method for the quantification of adsorbed protein an d the results obtained were compared with QCM and an amido black protein assay of the same systems. Model experiments were performed using bovine fibrinogen (an elongated molecule) and albumin (a globular molecule) adsorbing onto flat hydrophilic (OH terminated) and hydrophobic (CH3 terminated) surfaces in the first instance, but later superhydrophilic and superhydrophobic surfaces were also studied. Surface curvature on the nano-scale was used to model topography, wherein protein molecules adsorbed onto spherical substrates (15-165 nm diameter) having chemically defined surfaces. Results obtained indicate that both proteins exhibit a less organised secondary structure upon adsorption onto hydrophobic compared to hydrophilic surfaces, with this effect being greatest for albumin. Adsorption rates and binding affinities were found to be higher on hydrophobic surfaces although the amounts adsorbed at saturation were lower. Supporting spectroscopic data suggests that proteins undergo surface induced deformation upon adsorption. Topography was shown to compound the effects of surface chemistry, with fibrinogen being more denatured on surfaces presenting high surface curvature whereas albumin was more denatured on larger substrates. These effects are most probably due to the differing size and shape of the proteins investigated. This study highlights the possibility of using tailor-made surfaces to influence binding rates and the conformation of bound proteins through protein-surface interactions. The data presented in this thesis demonstrates our ability to control protein adsorption characteristics through careful consideration of the underlying surface, which may facilitate the development and fabrication of materials / surface coatings with tailored bioactivity.
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Severn, Kathryn A. « Science of synthetic turf surfaces : player-surface interactions ». Thesis, Loughborough University, 2010. https://dspace.lboro.ac.uk/2134/7216.
This research project has investigated the mechanical properties and behaviour of third generation synthetic turf surfaces used for football and rugby, with a focus on the traction behaviour produced at the shoe-surface interface. The physical characteristics and mechanical properties of the component materials used in the construction of third generation surfaces were examined. The bulk density of the rubber infill material was found to be a key variable. This was shown to be influenced by compaction and the resulting compression of the rubber infill material under an applied load. Increasing the compactive effort and/or compression under loading increased the bulk density. Shear strength of the rubber infill material was shown to be influenced by bulk density, increasing with a higher bulk density. The composite surface system behaviour of third generation synthetic turf surfaces was investigated. Several surface variables were measured including; shockpad thickness, synthetic turf carpet construction, infill thickness, infill bulk density and infill material type. Shockpad thickness, rubber infill thickness and bulk density were found to influence the impact behaviour, with a thicker rubber layer (shockpad and/or rubber infill layer) reducing the hardness of a surface system. Increasing the bulk density of the rubber infill with compactive effort increased the surface system hardness. Traction behaviour of composite surface systems was explored using three traction test methods to measure both rotational and translational traction. Rubber infill bulk density was shown to be a primary influencing variable from the playing surface variables investigated. Several further traction variables were explored to provide a fuller understanding of the mechanisms involved in the production of traction at the shoe-surface interface including; vertical stress, stud configuration, stud dimension, stud penetration, water and temperature. Vertical stress and stud configuration were found to be primary variables influencing traction development. A traction framework has been developed identifying the factors affecting the production of traction at the shoe-surface interface. It is intended that the traction framework can be used by the sports surface industry, sports governing bodies and academia to aid in the decisions and judgements made during the design, construction and maintenance of these surfaces to obtain desired characteristics and optimise performance and safety.
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Zidan, M. D. « Gas-liquid surface interactions ». Thesis, University of Sussex, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333478.
Hessey, Stephen. « Surface interactions of ionic liquids ». Thesis, University of Nottingham, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.664318.
This thesis presents an investigation into the interactions between IL surfaces and gases through studying the kinetics of absorption, adsorption and desorption. A model for absorption is presented in which a gaseous molecule that impacts the surface first enters a physisorbed state, from which it can either desorb or be absorbed into the bulk IL.
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Cotton, Ross Thomas. « Surface interactions of soccer balls ». Thesis, Loughborough University, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.536210.
Mouncey, Simon Patrick. « Low energy ion-surface interactions ». Thesis, Queen's University Belfast, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333823.
Subedi, Laxmi P. « AFM Tip-Graphene-Surface Interactions ». University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1291144388.
Clowes, Steven Kenneth. « Experimental studies of surface-adsorbate interactions and surface magnetism ». Thesis, University of York, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323531.
Bacteria in nature predominantly grow as biofilms on living and non-living surfaces. The development of biofilms on non-living surfaces is significantly affected by the surface micro/nano topography. The main goal of this dissertation is to study the interaction between microorganisms and nanopatterned surfaces. In order to engineer the surface with well-defined and repeatable nanoscale structures, a new, versatile and scalable nanofabrication method, termed Spun-Wrapped Aligned Nanofiber lithography (SWAN lithography) was developed. This technique enables high throughput fabrication of micro/nano-scale structures on planar and highly non-planar 3D objects with lateral feature size ranging from sub-50 nm to a few microns, which is difficult to achieve by any other method at present. This nanolithography technique was then utilized to fabricate nanostructured electrode surfaces to investigate the role of surface nanostructure size (i.e. 115 nm and 300 nm high) in current production of microbial fuel cells (MFCs). Through comparing the S. oneidensis attachment density and current density (normalized by surface area), we demonstrated the effect of the surface feature size which is independent of the effect on the surface area. In order to better understand the mechanism of microorganism adhesion on nanostructured surfaces, we developed a biophysical model that calculates the total energy of adhered cells as a function of nanostructure size and spacing. Using this model, we predict the attachment density trend for Candida albicans on nanofiber-textured surfaces. The model can be applied at the population level to design surface nanostructures that reduce cell attachment on medical catheters. The biophysical model was also utilized to study the motion of a single Candida albicans yeast cell and to identify the optimal attachment location on nanofiber coated surfaces, thus leading to a better understanding of the cell-substrate interaction upon attachment. Ph. D.
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GALAL, TAREK. « Interactions ondes electromagnetiques et surfaces rugueuses : applications a la surface cutanee ». Besançon, 1989. http://www.theses.fr/1989BESA2007.
Solution analytique de la dispersion d'une onde electromagnetique par une surface rugueuse, prenant en compte les parametres locaux de la topographie=une autre technique est developpee basee sur l'utilisation d'elements finis ou de differences finies
North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development. High temperature surface interactions. Neuilly sur Seine, France : AGARD, 1989.
Díez Muiño, Ricardo, et Heriberto Fabio Busnengo, dir. Dynamics of Gas-Surface Interactions. Berlin, Heidelberg : Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-32955-5.
Dyall, Kenneth G. Theoretical investigation of gas-surface interactions. Moffett Field, Calif : National Aeronautics and Space Administration, Ames Research Center, 1994.
Agbormbai, Adolf A. Reciprocity theory of gas surface interactions. [London, England] : Imperial College of Science, Technology and Medicine. Dept. of Aeronautics, 1989.
Workshop on Surface Modification by Plasma-Surface Interactions (1986 Princeton). Surface modification by plasma-surface interactions : Proceedings of the Workshop on Surface Modification by Plasma-Surface Interactions, Princeton, N.J, USA, May 1-2, 1986. Sous la direction de Kraus A. R et Dylla H. F. Amsterdam : North-Holland, 1987.
Wood, Eric F., dir. Land Surface — Atmosphere Interactions for Climate Modeling. Dordrecht : Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-009-2155-9.
Grimley, T. B. « Gas-Surface Interactions ». Dans Interaction of Atoms and Molecules with Solid Surfaces, 25–52. Boston, MA : Springer US, 1990. http://dx.doi.org/10.1007/978-1-4684-8777-0_2.
Livingston, Megan, et F. Kurtis Kasper. « Cell–Surface Interactions ». Dans Cell Culture Technology, 107–28. Cham : Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-74854-2_7.
van Emmichoven, P. A. Zeijlmans. « Ion-Surface Interactions ». Dans NATO ASI Series, 263–89. Boston, MA : Springer US, 1995. http://dx.doi.org/10.1007/978-1-4899-1412-5_12.
Adamczyk, Zbigniew. « Specific Surface Interactions ». Dans Encyclopedia of Colloid and Interface Science, 1047. Berlin, Heidelberg : Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-20665-8_177.
Nørskov, J. K. « Adsorbate-Surface Interactions ». Dans Springer Series in Solid-State Sciences, 94–103. Berlin, Heidelberg : Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-82423-4_13.
Hopman, H. J. « Hydrogen-Surface Interactions ». Dans Nonequilibrium Processes in Partially Ionized Gases, 241–50. Boston, MA : Springer US, 1990. http://dx.doi.org/10.1007/978-1-4615-3780-9_13.
Actes de conférences sur le sujet "Interactions de surface":
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Sikalo, S., et E. N. Ganic. « Droplet-Surface Interactions ». Dans Thermal Sciences 2004. Proceedings of the ASME - ZSIS International Thermal Science Seminar II. Connecticut : Begellhouse, 2004. http://dx.doi.org/10.1615/ichmt.2004.intthermscisemin.110.
Boatz, J., et D. Sorescu. « Polynitrogen/Nanoaluminum Surface Interactions ». Dans 2007 DoD High Performance Computing Modernization Program Users Group Conference. IEEE, 2007. http://dx.doi.org/10.1109/hpcmp-ugc.2007.60.
Boatz, Jerry A., et Dan Sorescu. « Polynitrogen/Nanoaluminum Surface Interactions ». Dans 2009 DoD High Performance Computing Modernization Program Users Group Conference (HPCMP-UGC). IEEE, 2009. http://dx.doi.org/10.1109/hpcmp-ugc.2009.37.
Boatz, Jerry A., et Dan Sorescu. « Polynitrogen/Nanoaluminum Surface Interactions ». Dans 2008 DoD HPCMP Users Group Conference. IEEE, 2008. http://dx.doi.org/10.1109/dod.hpcmp.ugc.2008.58.
Goinski, Adam. « Evolutionary surface reconstruction ». Dans 2008 Conference on Human System Interactions (HSI). IEEE, 2008. http://dx.doi.org/10.1109/hsi.2008.4581483.
Hosseini, Amir Ehsan, Subir Bhattacharjee et Eric M. V. Hoek. « Colloidal Interactions for Nanopatterned Surfaces Based on Surface Element Integration (SEI) Approach ». Dans ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-38781.
In this study, van der Waals and electrostatic interaction energies on a nanopatterned rough surface was investigated. Surface element integration method (SEI) was applied to determine the interaction between a nanostructured substrate and an infinite flat plate. Hemispherical protrusions or depressions were mathematically generated on a square lattice to represent the rough surface. The size of the asperities and the pitch (separation) between their centers were varied. From the above calculations, we have analyzed the coupling between the range of the interactions and the roughness features of the substrate by comparing the ratios of the rough surface to smooth surface interaction energies per unit area. At small separations, the rough surface van der Waals interaction is seriously attenuated in the presence of protruding asperities. This attenuation is less pronounced for depressions. The attenuation of the van der Waals interaction due to asperities diminishes at large separations. In contrast, attenuation of the electrostatic interaction is independent of the separation.
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Takeuchi, Yusuke, et Masanori Sugimoto. « An immersive surface for 3D interactions ». Dans the 2012 ACM international conference. New York, New York, USA : ACM Press, 2012. http://dx.doi.org/10.1145/2396636.2396700.
Herdrich, G., M. Fertig, D. Petkow et A. Steinbeck. « Modeling Approaches for Gas-Surface Interactions ». Dans 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition. Reston, Virigina : American Institute of Aeronautics and Astronautics, 2010. http://dx.doi.org/10.2514/6.2010-1247.
Labandibar, Jean-Yves, François Paoli, Paul Kamoun, Umberto Del Bello et Alberto Tobias. « Land-surface processes and interactions mission ». Dans International Conference on Space Optics 1997, sous la direction de Georges Otrio. SPIE, 2018. http://dx.doi.org/10.1117/12.2326436.
Shakeri Hossein Abad, Zahra, Craig Anslow et Frank Maurer. « Multi Surface Interactions with Geospatial Data ». Dans the Ninth ACM International Conference. New York, New York, USA : ACM Press, 2014. http://dx.doi.org/10.1145/2669485.2669505.
Rapports d'organisations sur le sujet "Interactions de surface":
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FEIBELMAN, PETER J. Fundamental Studies of Water-Surface Interactions. Office of Scientific and Technical Information (OSTI), novembre 2001. http://dx.doi.org/10.2172/789597.
Sinclair, Michael B., Todd W. Lane, Howland D. T. Jones, Roberto Rebeil, Susan Jeanne Altman, Julie Kaiser, Lucas K. McGrath et Caroline Ann Souza. Exploratory research into pathogen surface interactions. Office of Scientific and Technical Information (OSTI), février 2006. http://dx.doi.org/10.2172/877739.
Webb, Lauren J. Electrostatic Control of Protein-Surface Interactions. Fort Belvoir, VA : Defense Technical Information Center, octobre 2013. http://dx.doi.org/10.21236/ada597412.
Hinton, M. J. Groundwater-surface water interactions in Canada. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2014. http://dx.doi.org/10.4095/291372.
Strakowski, J., T. Renic et J. Clark. Wetland surface and groundwater interactions monitoring program. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2017. http://dx.doi.org/10.4095/299801.
Murray, P. T. Threshold Electron Studies of Gas-Surface Interactions. Fort Belvoir, VA : Defense Technical Information Center, janvier 1985. http://dx.doi.org/10.21236/ada151271.
Murphy, W. C., et T. F. George. Overlap Integrals for Atom-Metal Surface Interactions. Fort Belvoir, VA : Defense Technical Information Center, mai 1985. http://dx.doi.org/10.21236/ada155038.
Williamson, Charles H. Vortex-Surface Interactions : Vortex Dynamics and Instabilities. Fort Belvoir, VA : Defense Technical Information Center, octobre 2015. http://dx.doi.org/10.21236/ada627306.
Jones, Cullen. Groundwater-Surface Water Interactions near Mosier, Oregon. Portland State University Library, janvier 2000. http://dx.doi.org/10.15760/etd.5312.
Al-Attar, Ali. Cell Surface Molecules Driving Breast Cancer/Endothelial Interactions. Fort Belvoir, VA : Defense Technical Information Center, juillet 2001. http://dx.doi.org/10.21236/ada396252.
