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Artykuły w czasopismach na temat "Diffusive gradients in thin films"

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Puy, Jaume, Ramiro Uribe, Sandrine Mongin, Josep Galceran, Joan Cecília, Jacqueline Levy, Hao Zhang, and William Davison. "Lability Criteria in Diffusive Gradients in Thin Films." Journal of Physical Chemistry A 116, no. 25 (March 27, 2012): 6564–73. http://dx.doi.org/10.1021/jp212629z.

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Li, Cai, Shiming Ding, Liyuan Yang, Yan Wang, Mingyi Ren, Musong Chen, Xianfang Fan, and Eric Lichtfouse. "Diffusive gradients in thin films: devices, materials and applications." Environmental Chemistry Letters 17, no. 2 (December 11, 2018): 801–31. http://dx.doi.org/10.1007/s10311-018-00839-9.

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Santner, Jakob, Andreas Kreuzeder, Andrea Schnepf, and Walter W. Wenzel. "Numerical Evaluation of Lateral Diffusion Inside Diffusive Gradients in Thin Films Samplers." Environmental Science & Technology 49, no. 10 (April 30, 2015): 6109–16. http://dx.doi.org/10.1021/acs.est.5b00134.

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Sonmez, Osman, and Gary M. Pierzynski. "Assessment of zinc phytoavailability by diffusive gradients in thin films." Environmental Toxicology and Chemistry 24, no. 4 (April 2005): 934–41. http://dx.doi.org/10.1897/04-350r.1.

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Kreuzeder, Andreas, Jakob Santner, Hao Zhang, Thomas Prohaska, and Walter W. Wenzel. "Uncertainty Evaluation of the Diffusive Gradients in Thin Films Technique." Environmental Science & Technology 49, no. 3 (January 26, 2015): 1594–602. http://dx.doi.org/10.1021/es504533e.

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Hill, Benjamin, Jakob Santner, Heide Spiegel, Markus Puschenreiter, and Walter W. Wenzel. "Diffusive gradients in thin films predicts crop response better than calcium-acetate-lactate extraction." Nutrient Cycling in Agroecosystems 121, no. 2-3 (October 7, 2021): 227–40. http://dx.doi.org/10.1007/s10705-021-10173-2.

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AbstractSoil P testing has been widely used to predict crop yields, P uptake, and fertilizer demands in agriculture. Diffusive gradients in thin films (DGT) provides a zero-sink soil P test which mimics diffusion-controlled plant uptake and has previously been found to predict P availability to crops better than conventional quantity-based P tests in highly weathered Australian, though not in European soils. Here we tested the performance of DGT and the Austrian and German standard P quantity test calcium acetate lactate (CAL) to explain the variation of crop yield and P uptake response of win
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Ding, Shiming, Yan Wang, Liping Zhang, Lv Xu, Mengdan Gong, and Chaosheng Zhang. "New holder configurations for use in the diffusive gradients in thin films (DGT) technique." RSC Advances 6, no. 91 (2016): 88143–56. http://dx.doi.org/10.1039/c6ra19677b.

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Weng, Hongsheng, Liang Hei, Xu Huang, and Mingxuan Cai. "Application of diffusive gradients in thin-films in sediments and soils." IOP Conference Series: Earth and Environmental Science 675, no. 1 (February 1, 2021): 012025. http://dx.doi.org/10.1088/1755-1315/675/1/012025.

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Mohammadi, Amir, Thomas Corbett, Amanda French, Niklas J. Lehto, John Hadfield, Peter Jarman, Dean Sandwell, Ali Shokri, Louis Schipper, and Adam Hartland. "Application of Diffusive Gradients in Thin Films for Monitoring Groundwater Quality." ACS ES&T Water 2, no. 4 (March 21, 2022): 518–26. http://dx.doi.org/10.1021/acsestwater.1c00279.

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Garmo, Øyvind Aaberg, Oddvar Røyset, Eiliv Steinnes, and Trond Peder Flaten. "Performance Study of Diffusive Gradients in Thin Films for 55 Elements." Analytical Chemistry 75, no. 14 (July 2003): 3573–80. http://dx.doi.org/10.1021/ac026374n.

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Rozprawy doktorskie na temat "Diffusive gradients in thin films"

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Altier, Infantes Alexandra. "Diffusive Gradients in Thin-films (DGT) beyond perfect-sink conditions." Doctoral thesis, Universitat de Lleida, 2018. http://hdl.handle.net/10803/585874.

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La presencia d'elements metàl•lics en el medi ambient està fortament influenciada per les activitats antropogèniques entre les que emergeix l'ús de nous materials basats en nanopartícules metàl•liques i òxids metàl•lics. L'especiació d'ions metàl•lics juga un paper fonamental en la determinació de la biodisponibilitat, l’ecotoxicitat i en general en la seva circulació en mitjans naturals. Però la disponibilitat d'elements metàl•lics i les propietats tòxiques o nutritives depenen a mès d’un conjunt de processos fisicoquímics de caràcter dinàmic, on les condicions d'equilibri, malgrat el seu amp
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Kobayashi, Takahiro. "Development and application of the DGT technique for the measurement of nitrate, ammonia and phosphate in natural waters, sediments and soils." Thesis, Lancaster University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302435.

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Luo, Jun. "Effect of soil dynamics on metal uptake by plants and diffusive gradients in thin-films." Thesis, Lancaster University, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.533063.

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Cole, Russell Francis. "Determination of organotin compounds in coastal sediment pore-water by diffusive gradients in thin-films (DGT) technique." Thesis, University of Portsmouth, 2016. https://researchportal.port.ac.uk/portal/en/theses/determination-of-organotin-compounds-in-coastal-sediment-porewater-by-diffusive-gradients-in-thinfilms-dgt-technique(f452f268-d8c7-4ca9-acb3-ffd6fb733f8e).html.

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Organotin compounds still present a high risk to biota in the aquatic environment. Measuring the behaviour of the freely dissolved fractions of these compounds in sediment compartments is challenging, with costly and sensitive analytical techniques required for their measurement. Diffusive gradients in thin-films (DGT) allow for the uptake and pre-concentration of analytes in a binding gel and is used to measure dissolved metals and some organic compounds. The utility of novel silica-bound sorbents (C8, C18, mixed phases) as DGT binding gels for the sequestration of organotins in the marine en
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Lindfors, Sarah. "Metal Fractionation in Snowmelt Runoff : A Comparison between Ultrafiltration and Diffusive Gradients in Thin Films (DGT) techniques." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-65018.

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Urban runoff is a non-point pollution source deteriorating water quality of natural watersystems. The composition of urban runoff vary depending on land use, seasonal changes anddifferent surfaces that come into contact with the water. Urban runoff often contain metals andAl, Cd, Cr, Cu, Fe, Ni, Pb and Zn are of particular concern for the environment due to theirpotential toxicity. Metals in runoff can be present in different phases, associated with particles,colloids of different sizes or dissolved in the free phase. The different phases vary in size butalso overlap each other. Information ab
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Bennett, William W. "Development of the Diffusive Gradients in Thin Films Technique for the Measurement of Inorganic Arsenic Speciation in Water and the Investigation of Arsenic Sediment Biogeochemistry." Thesis, Griffith University, 2012. http://hdl.handle.net/10072/365634.

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A novel diffusive gradients in thin films (DGT) technique for the measurement of inorganic arsenic speciation in situ was developed and evaluated. In addition, a diffusive equilibration in thin films (DET) technique was optimized for the high-resolution, colorimetric measurement of iron(II) in sediment porewaters. These techniques were then utilized to investigate processes of arsenic mobilization in sediments and the effect of changing redox conditions on the cycling of arsenic in freshwater and marine sediments. A titanium dioxide-based adsorbent, Metsorb™, was evaluated as a DGT adsorbent f
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Li, Weijia, and n/a. "Development of New Binding Phases for Speciation Measurements of Trace Metals with the Diffusive Gradients in Thin Films Technique." Griffith University. School of Environmental and Applied Science, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20040504.150905.

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The recently developed technique of diffusive gradients in thin films (DGT) for speciation measurement of analytes in the environment was further developed through the development of series of new binding phases including poly(acrylamide-co-acrylic acid) copolymer hydrogel (PAM-PAA), poly(acrylamidoglycolic acid-co-acrylamide) (PAAGA-PAM) hydrogel, the Whatman P81 cellulose phosphate ion exchange membrane (P81) and a liquid binding phase of poly(4-styrenesulfonate) (PSS). A new diffusion layer, cellulose dialysis membrane, was also employed for the liquid binding phase DGT. PAM-PAA copolyme
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Li, Weijia. "Development of New Binding Phases for Speciation Measurements of Trace Metals with the Diffusive Gradients in Thin Films Technique." Thesis, Griffith University, 2004. http://hdl.handle.net/10072/367741.

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The recently developed technique of diffusive gradients in thin films (DGT) for speciation measurement of analytes in the environment was further developed through the development of series of new binding phases including poly(acrylamide-co-acrylic acid) copolymer hydrogel (PAM-PAA), poly(acrylamidoglycolic acid-co-acrylamide) (PAAGA-PAM) hydrogel, the Whatman P81 cellulose phosphate ion exchange membrane (P81) and a liquid binding phase of poly(4-styrenesulfonate) (PSS). A new diffusion layer, cellulose dialysis membrane, was also employed for the liquid binding phase DGT. PAM-PAA copolyme
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Köhler, Sandra. "Bestimmung der Bioverfügbarkeit von Kupfer und Zink in Böden mit der Methode DGT (diffusive gradients in thin films)." Zürich : ETH, Eidgenössische Technische Hochschule Zürich, Institut für terrestrische Ökologie, 2002. http://e-collection.ethbib.ethz.ch/show?type=dipl&nr=102.

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Kane, David. "Evaluating phosphorus availability in soils receiving organic amendment application using the Diffusive Gradients in Thin-films (DGT) technique." Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/8001.

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Phosphorus is a resource in finite supply. Use of organic amendments in agriculture can be a sustainable alternative to inorganic P, provided it can meet crop requirements. However a lack of consistent knowledge of plant P availability following application of organic amendments, limits its potential. Studies suggest chemical extraction procedures, may not reflect plant available P. The Diffusive Gradients in Thin-films (DGT) technique is based on natural diffusion of P via a hydrogel and sorption to a ferrihydrite binding layer; which should accurately represent soil P (CDGT) in a plant avail
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Książki na temat "Diffusive gradients in thin films"

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Davison, William, and Hao Zhang, eds. Diffusive Gradients in Thin-Films for Environmental Measurements. Cambridge: Cambridge University Press, 2016. http://dx.doi.org/10.1017/cbo9781316442654.

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Brown, James L. The thin oil film equation. Moffett Field, Calif: National Aeronautics and Space Administration, Ames Research Center, 1999.

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Davison, William. Diffusive Gradients in Thin-Films for Environmental Measurements. Cambridge University Press, 2016.

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Davison, William. Diffusive Gradients in Thin-Films for Environmental Measurements. Cambridge University Press, 2016.

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Davison, William. Diffusive Gradients in Thin-Films for Environmental Measurements. Cambridge University Press, 2016.

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Części książek na temat "Diffusive gradients in thin films"

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Wang, Jin, Liyuan Yang, and Enfeng Liu. "Application of diffusive gradient in thin films in the study of phosphorus mobility at sediment-water interface: A case study of the outlet of Nansi Lake." In Advances in Civil Engineering and Environmental Engineering, Volume 2, 3–7. London: CRC Press, 2023. http://dx.doi.org/10.1201/9781003383031-1.

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Genzel, C. "Problems Related to X-Ray Stress Analysis in Thin Films in the Presence of Gradients and Texture." In Diffraction Analysis of the Microstructure of Materials, 473–503. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-06723-9_18.

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Wohlschlögel, M., W. Baumann, U. Welzel, and Eric J. Mittemeijer. "Mechanical Stress Gradients in Thin Films Analyzed Employing X-Ray Diffraction Measurements at Constant Penetration/Information Depths." In Materials Science Forum, 19–24. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-414-6.19.

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"Determination of arsenic species using the Diffusive Gradients in Thin films (DGT) device." In Understanding the Geological and Medical Interface of Arsenic - As 2012, 452–53. CRC Press, 2012. http://dx.doi.org/10.1201/b12522-164.

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Guan, Dong-Xing. "Diffusive Gradients in Thin-Films (DGT): An Effective and Simple Tool for Assessing Contaminant Bioavailability in Waters, Soils and Sediments." In Encyclopedia of Environmental Health, 111–24. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-409548-9.11403-4.

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"Performance characteristics of diffusive gradients in thin films with a mixed-binding layer gel for the measurement of inorganic arsenic and metals." In Understanding the Geological and Medical Interface of Arsenic - As 2012, 454–56. CRC Press, 2012. http://dx.doi.org/10.1201/b12522-165.

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"Diffusive Equilibration in Thin Films (DET)." In Encyclopedia of Ocean Engineering, 367. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-10-6946-8_300176.

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Aveyard, Bob. "Thin liquid films." In Surfactants, 314–36. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198828600.003.0012.

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The study of soap films, which are symmetrical, has a distinguished history. More recently, other asymmetric liquid films (e.g. pseudo-emulsion films and wetting films on solids) have been widely investigated. The (meta)stability of thin liquid films can be understood in terms of disjoining pressure isotherms, the shapes of which reflect the nature of the films. Film stability in systems with only fluids present can also be considered in terms of both classical and generalized entry coefficients, defined in terms of the various interfacial tensions in the system. Film rupture obviously occurs as a result of dynamic processes. Film drainage (thinning) rate is influenced by surface concentration gradients in the surfactant layers at film surfaces and by the effects of Marangoni flow within the films. To be stable, films need to have elastic properties in order to withstand mechanical perturbations. If the repulsive forces between surfaces become insufficient, hole formation will lead to film rupture.
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"Profiling of fibre texture gradients in thin films by anomalous X-ray diffraction." In Fifth Size Strain Conference. Diffraction Analysis of the Microstructure of Materials, 263–72. Oldenbourg Wissenschaftsverlag, 2008. http://dx.doi.org/10.1524/9783486992564-033.

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MORTAKI, M., B. CHENNI, J. DUCLOS, and M. LEDUC. "The Newton-Raphson and Conjuguate Gradients algorithms for the acoustic characterization of thin films." In Ultrasonics International 93, 827–30. Elsevier, 1993. http://dx.doi.org/10.1016/b978-0-7506-1877-9.50205-5.

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Streszczenia konferencji na temat "Diffusive gradients in thin films"

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Hong-Tao Fan, Wu Dandan, and Gao Ze. "The measurement of Sb(III) by diffusive gradients in thin-films with sodium polyacrylate solution as the binding agent in waters." In 2011 International Symposium on Water Resource and Environmental Protection (ISWREP). IEEE, 2011. http://dx.doi.org/10.1109/iswrep.2011.5893559.

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Bartholomeusz, Brian J. "Manifestations Of Through Thickness Thermal Gradients In Laser Irradiated Thin Films." In OE/LASE '89, edited by Gordon R. Knight and Clark N. Kurtz. SPIE, 1989. http://dx.doi.org/10.1117/12.952759.

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Kim, Dongchoul, and Wei Lu. "Interface Instability and Morphology Evolution of Thin Films Induced by Electrostatic Interaction." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14954.

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Experiments have shown that a thin polymer film subjected to an electrostatic field may lose stability at the polymer-air interface, leading to uniform self-organized pillars emerging out of the film surface. This paper presents a three dimensional model to account for this behavior. Attention is focused on a fully nonlinear evolution simulation to reveal the dynamic process from an early perturbation to late structure formation. Energetic components involving the interface energy and dielectric effect, and kinetics of coupled viscous flow and diffusion are incorporated into a phase field fram
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Chen, J. K., J. E. Beraun, and D. Y. Tzou. "A Dual-Phase-Lag Diffusion Model for Predicting Thin Film Growth." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0928.

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Abstract A dual-phase-lag diffusion (DPLD) model, which extends Fick’s law by including two lagging times, τj for the mass flux vector and τρ for the density gradient, is developed to predict thin film growth. Depending upon the phase lag ratio τρ/τj, the proposed model uniquely characterizes four types of growth kinetics as reported in the literature. The model validation with the experimental data of silicon oxidation and Hg1-xCdxTe film deposition demonstrates that the DPLD model captures the anomalous behavior of thin film growth from the very beginning of the process to relatively long ti
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Yamada, Toru, Sina Hamian, Keunhan Park, Yutaka Asako, and Mohammad Faghri. "Diffusive-Ballistic Heat Transport in Thin Films Using Energy Conserving Dissipative Particle Dynamics." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-89641.

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Diffusive-ballistic heat transport in thin films was simulated using energy conserving dissipative particle dynamics (DPDe). The solution domain was considered to be two-dimensional and DPD particles were distributed in the solution domain uniformly under constant temperature boundary conditions at the top and bottom walls and periodic boundary at the side walls. The effects of phonon mean free path was incorporated by its relation to the cutoff radius of energy interaction. This cutoff radius was obtained based on Knudsen number using the existing phonon-boundary scattering models. The simula
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Park, Wontae, John E. Anthony, and William S. Wong. "Formation of highly crystalline organic semiconductor thin films by inkjet printed thickness gradients." In Organic and Hybrid Field-Effect Transistors XIX, edited by Oana D. Jurchescu and Iain McCulloch. SPIE, 2020. http://dx.doi.org/10.1117/12.2568099.

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Sutta, Pavol. "Lattice stress gradients in zinc oxide thin films and their influence on the preferentially oriented growth of the films." In International Conference on Solid State Crystals 2000, edited by Jaroslaw Rutkowski, Jakub Wenus, and Leszek Kubiak. SPIE, 2001. http://dx.doi.org/10.1117/12.425445.

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Xu, Mingtian, and Lin Cheng. "Ballistic-Diffusive Heat Conduction Model." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22243.

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In the present work, the heat flux and high order fluxes as well as their time derivatives are taken as independent variables and a new type of extended irreversible thermodynamics is developed. In the framework of this extended irreversible thermodynamics, the size dependence of the effective conductivity is investigated and a generalized single phase lagging heat conduction model including the size effect is established. Theoretically, it covers the diffusive to ballistic regime of heat conduction. The comparison with the experimental and theoretical results of silicon nanowires and thin fil
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Lin, Hao, Brian D. Storey, and Juan G. Santiago. "A Depth-Averaged Model for Electrokinetic Flows in a Thin Microchannel Geometry." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-61017.

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We have developed a generalized electrokinetic model suitable for the study of microchannel flows with conductivity gradients and shallow channel depths. An asymptotic analysis was performed with channel depth-to-width ratio as the smallness parameter, and three dimensional transport equations are reduced to a set to depth-averaged equations governing flow dynamics in the streamwise-spanwise plane of a shallow channel. The momentum equation uses a Darcy-Brinkman-Forchheimer type formulation, and the convective-diffusive transport of the conductivity field in the depth direction manifests itsel
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Lee, Chun-I., Shiqah-Ping Jung, Kan-Lin Hsueh, Chi-Chang Chen, and Wen-Chen Chang. "Effect of Porosity Gradient in Gas Diffusion Layer on Cell Performance With Thin-Film Agglomerate Model in Cathode Catalyst Layer of a PEM Fuel Cell." In ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology collocated with ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/fuelcell2011-54838.

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A one-dimensional, steady-state, two-phase, isothermal numerical simulations were performed to investigate the effect on cell performance of a PEM fuel cell under non-uniform porosity of gas diffusion layer. In the simulation, the non-uniform porosity of gas diffusion layer was taken into account to analyze the transport phenomena of water flooding and mass transport in the gas diffusion layer. The porosity of the gas diffusion layer is treated as a linear function. Furthermore, the structure of the catalyst layer is considered to be a cylindrical thin-film agglomerate. Regarding the distribut
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