Search results for "Physical model"

showing 3 items of 33 documents

Multi-physical modelling of reverse electrodialysis

2017

Abstract Reverse electrodialysis (RED) is an electrochemical membrane process that directly converts the energy associated with the concentration difference between two salt solutions into electrical energy by means of a selective controlled mixing. The physics of RED involves the interaction of several phenomena of different nature and space-time scales. Therefore, mathematical modelling and numerical simulation tools are crucial for performance prediction. In this work, a multi-physical modelling approach for the simulation of RED units was developed. A periodic portion of a single cell pair was simulated in two dimensions. Fluid dynamics was simulated by the Navier-Stokes and continuity …

Work (thermodynamics)EngineeringSettore ING-IND/26 - Teoria Dello Sviluppo Dei Processi ChimiciSettore ING-IND/25 - Impianti ChimiciGeneral Chemical EngineeringAnalytical chemistry02 engineering and technology020401 chemical engineeringStack (abstract data type)Reversed electrodialysisFluid dynamicsPerformance predictionGeneral Materials Science0204 chemical engineeringSettore ING-IND/19 - Impianti NucleariWater Science and TechnologyComputer simulationPlane (geometry)business.industryMechanical EngineeringGeneral ChemistryMechanics021001 nanoscience & nanotechnology6. Clean waterMembraneReverse electrodialysis multi-physical model finite element method power density profiled membranesSettore ING-IND/06 - Fluidodinamica0210 nano-technologybusiness
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Innovative Combination of Three Alternating Current Relaxation Techniques: Electrical Charge, Mass, and Color Impedance Spectroscopy. Part I: The Tool

2009

Technical details concerning the simultaneous acquisition of three impedance functions (electrochemical impedance spectroscopy, alternating current electrogravimetry or mass impedance, and alternating current colorimetry or color impedance) are presented. The analysis of each type of impedance function gives interesting information about the species participating during the electrochemical processes. Furthermore, obtaining three impedance functions in situ allows the crossed impedance functions to be calculated. These functions are especially useful in detecting delays between the color, mass, and electrical charge response of the system to the same perturbation, and it allows species parti…

chemistry.chemical_classificationPhysical modelMolar massChemistryAnalytical chemistryPolymerElectric chargeSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsComputational physicslaw.inventionDielectric spectroscopyGeneral EnergylawElectrogravimetryPhysical and Theoretical ChemistryAlternating currentElectrical impedanceThe Journal of Physical Chemistry C
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Data from: Genome architecture enables local adaptation of Atlantic cod despite high connectivity

2017

Adaptation to local conditions is a fundamental process in evolution; however, mechanisms maintaining local adaptation despite high gene flow are still poorly understood. Marine ecosystems provide a wide array of diverse habitats that frequently promote ecological adaptation even in species characterized by strong levels of gene flow. As one example, populations of the marine fish Atlantic cod (Gadus morhua) are highly connected due to immense dispersal capabilities but nevertheless show local adaptation in several key traits. By combining population genomic analyses based on 12K single nucleotide polymorphisms with larval dispersal patterns inferred using a biophysical ocean model, we show…

medicine and health carePopulation Divergencechromosomal inversionLife SciencesMedicinebiophysical modeling
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