Wyniki wyszukiwania dla: DRIFT-DIFFUSION MODEL

• Air flow phenomena in the model of the blind drift

  Publikacja

  • M. Jaszczur
  • M. Karch
  • M. Zych
  • R. Hanus
  • L. Petryka
  • D. Świsulski

  - EPJ Web of Conferences - Rok 2016

  In the presented paper, Particle Image Velocimetry (PIV) has been used to investigate flow pattern and turbulent structure in the model of blind drift. The presented model exist in mining, and has been analyzed to resolve ventilation issues. Blind region is particularly susceptible to unsafe methane accumulation. The measurement system allows us to evaluate all components of the velocity vector in channel cross-section simultaneously....

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• Wave propagation in a sensor/actuator diffusion bond model

  Publikacja

  • B. Lee
  • M. Palacz
  • M. Krawczuk
  • W. Ostachowicz
  • W. Staszewski

  - JOURNAL OF SOUND AND VIBRATION - Rok 2004

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• A Simple Model of Linkage Disequilibrium and Genetic Drift in Human Genomic SNPs: Importance of Demography and SNP Age

  Publikacja

  • J. Polanska
  • M. Kimmel

  - HUMAN HEREDITY - Rok 2005

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• Nonequilibrium thermodynamic model of diffusion processes in the steel - carbon thin film tribological system

  Publikacja

  • B. SV
  • K. PV

  - Material Science & Engineering International Journal - Rok 2022

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• Two-dimensional diffusion wave model for numerical simulation of inundation - Upper Narew case study

  Publikacja

  • M. Szydłowski

  - Rok 2008

  Przedstawiono zastosowanie uproszczonego modelu matematycznego przepływu wody ze swobodną powierzchnią, zwanego falą dyfuzyjną, do numerycznej symulacji zalewu powodziowego doliny rzeki. Równania modelu rozwiązano metodą objętości skończonych. Model w dwuwymiarowej wersji wykorzystano do odtworzenia przejścia fali powodziowej przez fragment doliny Górnej Narwi między miejscowościami Suraż i Łapy.

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• A compartment model of alveolar–capillary oxygen diffusion with ventilation–perfusion gradient and dynamics of air transport through the respiratory tract

  Publikacja

  • J. Jaworski
  • G. Redlarski

  - COMPUTERS IN BIOLOGY AND MEDICINE - Rok 2014

  This paper presents a model of alveolar–capillary oxygen diffusion with dynamics of air transport through the respiratory tract. For this purpose electrical model representing the respiratory tract mechanics and differentia equations representing oxygen membrane diffusion are combined. Relevant thermodynamic relations describing the mass of oxygen transported into the human body are proposed as the connection between these models,...

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• Modeling of Transient Photocurrent in Organic Semiconductors Incorporating the Annihilation of Excitons on Charge Carriers

  Publikacja

  • D. Głowienka
  • J. Szmytkowski

  - ACTA PHYSICA POLONICA A - Rok 2017

  The role of the annihilation of excitons on charge carriers has been theoretically investigated in organic semiconductors. We have developed the numerical drift-diffusion model by incorporation terms which describe the annihilation process. The transient photocurrent has been calculated for different injection barrier heights, exciton mobilities, and annihilation rate constants. We have demonstrated that the annihilation has a...

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• Influence of excitons interaction with charge carriers on photovoltaic parameters in organic solar cells

  Publikacja

  • D. Głowienka
  • J. Szmytkowski

  - CHEMICAL PHYSICS - Rok 2018

  We report on theoretical analysis of excitons annihilation on charge carriers in organic solar cells. Numerical calculations based on transient one-dimensional drift-diffusion model have been carried out. An impact of three quantities (an annihilation rate constant, an exciton mobility and a recombination reduction factor) on current density and concentrations of charge carriers and excitons is investigated. Finally, we discuss...

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• Light intensity analysis of photovoltaic parameters for perovskite solar cells

  Publikacja

  • D. Głowienka
  • Y. Galagan

  - ADVANCED MATERIALS - Rok 2022

  The number of publications on perovskite solar cells (PSC) continues to grow exponentially. Although the efficiency of PSC is exceeded 25.5%, not every research laboratory can reproduce this result or even pass the border of 20%. Unfortunately, it is not always clear which dominating mechanism is responsible for the performance drop. Here, we develop a simple method of light intensity analysis of JV parameters allowing the understanding...

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• Electrical characteristics simulation of top-gated graphene field-effect transistor (GFET) with 10 μm x 10 μm graphene channel

  Dane Badawcze

  open access

  • M. Łuszczek
  • M. Turzyński
  • D. Świsulski

  The presented data set is part of the research on graphene field-effect transistor (GFET) modelling. The calculations were performed with the use of GFET Tool program (https://nanohub.org/resources/gfettool DOI: 10.4231/D3QF8JK5T), which enabled simulation of the drain current (Id) vs. drain voltage (Vd) characteristics for different gate voltages (Vg)...