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Wyszukujesz frazę "Rashidi, M. M." wg kryterium: Wszystkie pola

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    Wyświetlanie 1-6 z 6
    Tytuł:
    A review: differential transform method for semi-analytical solution of differential equations
    Autorzy:
    Rashidi, M. M.
    Rabiei, F.
    Naser Nia, S.
    Abbasbandy, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/265637.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    metoda transformacji różniczkowej
    równania różniczkowe
    metoda półanalityczna
    differential transform method
    differential transform - Pad'e approximation
    semi-analytical method
    differential equations
    fuzzy differential transformation method
    gS-differentiability
    Opis:
    In this article, the semi-analytical method known as the Differential Transform Method (DTM) for solving different types of differential equations is reviewed. First, basic definitions and formulas of DTM and Differential Transform-Padé approximation (DTM-Padé), which are used to increase the convergence and accuracy of DTM approximations, are discussed. Then both techniques of DTM and DTM-Padé, which have been successfully applied to partial differential equations, as well as the application of these methods in fluid mechanic and heat transfer are presented. In addition, the extension of DTM for integral differential equations and the fuzzy differential transformation method (FDTM) for fuzzy problems are discussed.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2020, 25, 2; 122-129
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical solutions by EFGM of MHD convective fluid flow past a vertical plate immersed in a porous medium in the presence of cross diffusion effects via biot number and convective boundary condition
    Autorzy:
    Raju, R. S.
    Reddy, B. M.
    Rashidi, M. M.
    Gorla, R. S. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/265443.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    thermal diffusion
    diffusion thermo
    MHD
    porous medium
    EFGM
    dyfuzja termiczna
    magnetohydrodynamika
    porowatość
    Opis:
    In this investigation, the numerical results of a mixed convective MHD chemically reacting flow past a vertical plate embedded in a porous medium are presented in the presence of cross diffusion effects and convective boundary condition. Instead of the commonly used conditions of constant surface temperature or constant heat flux, a convective boundary condition is employed which makes this study unique and the results more realistic and practically useful. The momentum, energy, and concentration equations derived as coupled second-order, ordinary differential equations are solved numerically using a highly accurate and thoroughly tested element free Galerkin method (EFGM). The effects of the Soret number, Dufour number, Grashof number for heat and mass transfer, the viscous dissipation parameter, Schmidt number, chemical reaction parameter, permeability parameter and Biot number on the dimensionless velocity, temperature and concentration profiles are presented graphically. In addition, numerical results for the local skin-friction coefficient, the local Nusselt number, and the local Sherwood number are discussed through tabular forms. The discussion focuses on the physical interpretation of the results as well as their comparison with the results of previous studies.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2017, 22, 3; 613-636
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bidirectionally stretched flow of Jeffrey liquid with nanoparticles, Rosseland radiation and variable thermal conductivity
    Autorzy:
    Archana, M.
    Gireesha, B. J.
    Rashidi, M. M.
    Prasannakumara, B. C.
    Gorla, R. S. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/240409.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    heat mass transfer
    jeffrey nanofluid
    variable thermal conductivity
    rosseland approximation
    suction
    ciepło
    masa
    zmienna przewodność cieplna
    aproksymacja
    ssanie
    Opis:
    Heat and mass transfer stretched flow of an incompressible, electrically conducting Jeffrey fluid has been studied numerically. Nanoparticles are suspended in the base fluid and it has many applications such as cooling of engines, thermal absorption systems, lubricants fuel cell, nanodrug delivery system and so on. Temperature dependent variable thermal conductivity with Rosseland approximation is taken into account and suction effect is employed in the boundary conditions. The governing partial differential equations are first transformed into set of ordinary differential equations using selected similarity transformations, which are then solved numerically using Runge-Kutta-Felhberg fourth-fifth order method along with shooting technique. The flow, heat and mass transfer characteristics with local Nusselt number for various physical parameters are presented graphically and a detailed discussion regarding the effect of flow parameters on velocity and temperature profiles are provided. It is found that, increase of variable thermal conductivity, radiation, Brownian motion and thermophoresis parameter increases the rate of heat transfer. Local Nusselt number has been computed for various parameters and it is observed that, in the presence of variable thermal conductivity and Rosseland approximation, heat transfer characteristics are higher as compared to the constant thermal conductivity and linear thermal radiation.
    Źródło:
    Archives of Thermodynamics; 2018, 39, 4; 33--57
    1231-0956
    2083-6023
    Pojawia się w:
    Archives of Thermodynamics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Measuring wind gradients in agroforestry systems by shaded piche evaporimeters. II. Accuracies obtained in some African case studies
    Autorzy:
    Stigter, C J
    Kainkwa, R.M.R.
    Oteng'i, S.B.B.
    Onyewotu, L.O.Z.
    Mohammed, A.E.
    Ibrahim, A.A.
    Rashidi, M.G.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/26193.pdf
    Data publikacji:
    2000
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    anemometry
    Piche evaporimeter
    wind reduction
    agroforest system
    Źródło:
    International Agrophysics; 2000, 14, 4
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Benzene and Toluene Removal by Carbon Nanotubes from Aqueous Solution
    Autorzy:
    Bina, B.
    Amin, M. M.
    Rashidi, A.
    Pourzamani, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/204889.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    carbon nanotubes
    benzene
    isofit
    toluene
    Opis:
    The removal of benzene (B) and toluene (T) from aqueous solution by multi walled, single walled, and hybrid carbon nanotubes (MWCNTs, SWCNTs, and HCNTs) was evaluated for a nanomaterial dose of 1 g/l, concentration of 10-100 mg/l, and pH 7. The equilibrium amount removed by SWCNTs (B: 9.98 mg/g and T: 9.96 mg/g) was higher than for MWCNTs and HCNTs. Toluene has a higher adsorption tendency on CNTs than benzene, which is related to the increasing water solubility and the decreasing molecular weight of the compounds. The SWCNTs performed better for B and T sorption than the MWCNTs and HCNTs. Isotherms study based on isofit program indicate that the Generalized Langmuir-Freundlich (GLF) isotherm expression provides the best fit for benzene sorption, and that Brunauer-Emmett-Teller (BET) isotherm is the best fit for toluene adsorption by SWCNT. SWCNTs are efficient B and T adsorbents and possess good potential applications to water and wastewater treatment and maintain water of high quality that could be used for cleaning up environmental pollution.
    Źródło:
    Archives of Environmental Protection; 2012, 38, 1; 3-25
    2083-4772
    2083-4810
    Pojawia się w:
    Archives of Environmental Protection
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    First observation of vertically aligned cesium doped ZnO nanorods as an efficient electron transporter in polymer solar cell
    Autorzy:
    Ahmadi, M.
    Rashidi Dafeh, S.
    Ghazanfarpour, S.
    Khanzadeh, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/355661.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    inverted polymer solar cell
    Cs doped ZnO nanorod
    electron transporter
    Opis:
    Single crystalline cesium doped ZnO nanorods with homogeneous size and shape were grown hydrothermally on ITO substrates that are presented in our previous work. According to the previous work, XRD analysis showed that cesium doped ZnO nanorods are wurtzite single crystals and are grown preferentially along the c-axis. Also, the electrical conductivity of doped ZnO showed higher values for the 1% cesium, which confirmed incorporation of the cesium dopant. Cesium doped ZnO nanorods are suitable candidates for applications in solar cells. So, in this research, we employed cesium doped ZnO nanorods with the different dopant concentration in inverted polymer solar cell. By comparing the effect of doped ZnO nanorods with diverse dopant concentration (0, 0.5, 1.0, 1.5 and 2%) on the performance of devices, 1.0% cesium doped ZnO was found as the most effective doping level among the selected doping concentrations. Also, using 1.0% cesium doped ZnO nanorods, Jsc of 8.21 mA/cm2, Voc of 0.541V and Fill Factor of 63.01% were achieved, which led to power conversion efficiency of 2.80%.
    Źródło:
    Archives of Metallurgy and Materials; 2018, 63, 4; 1571-1574
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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