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    Wyświetlanie 1-7 z 7
    Tytuł:
    Soret and Dufour effects on MHD free convective flow past a vertical porous plate in the presence of heat generation
    Autorzy:
    Reddy, G. V. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/264624.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    promieniowanie
    wymiana ciepła
    wymiana masy
    tarcie
    radiation
    heat and mass transfer
    skin-friction
    Nusselt number
    Sherwood number
    Opis:
    An MHD fluid flow is examined over a vertical plate in the presence of Dufour and Soret effects. The resulting momentum, energy and concentration equations are then made similar by introducing the usual similarity transformations. These similar equations are then solved numerically using the Runge-Kutta fourth order method with shooting technique. The effects of various parameters on the dimensionless velocity, temperature and concentration profiles as well as the local values of the skin-friction coefficient, the Nusselt number and Sherwood number are displayed graphically and in a tabular form. A comparison with previously published work is obtained and an excellent agreement is found.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2016, 21, 3; 649-665
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Soret and Dufour effects on MHD micropolar fluid flow over a linearly stretching sheet, through a non-Darcy porous medium
    Autorzy:
    Reddy, G. V. R.
    Krishna, Y. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/265236.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    przepływ magnetohydrodynamiczny
    parametr magnetyczny
    warstwa graniczna
    MHD flow
    magnetic parameter
    Dufour number
    Soret number
    Opis:
    In this paper, we discuss the Soret and Dufour effects on an MHD micropolar fluid flow over a linearly stretching sheet, through a non-Darcy porous medium, where stretching velocity of the sheet varies linearly with distance from the origin, and, temperature and concentration vary non-linearly in the boundary layer region. By suitable similarity transformations, the governing boundary layer equations are transformed to ordinary differential equations. These equations are solved by numerical computations with bvp4c along with the shooting technique method. The effects of the magnetic parameter, Soret number and Dufour number on velocity profiles, microrotation profile, heat transfer, and concentration, skin-friction, Nusselt number and Sherwood number are computed, discussed and analysed numerically and presented through tables and graphs.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2018, 23, 2; 485-502
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thermal radiation and magnetic field effects on unsteady mixed convection flow and mass transfer over a porous stretching surface with heat generation
    Autorzy:
    Reddy, G. V. R.
    Reddy, B. A.
    Reddy, N. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/955276.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    promieniowanie
    wymiana masy
    rozciąganie
    pole magnetyczne
    wytwarzanie ciepła
    radiation
    mass transfer
    stretching surface
    magnetic field
    heat generation
    temperature
    Opis:
    The effects of thermal radiation and mass transfer on an unsteady hydromagnetic boundary layer mixed convection flow along a vertical porous stretching surface with heat generation are studied. The fluid is assumed to be viscous and incompressible. The governing partial differential equations are transformed into a system of ordinary differential equations using similarity variables. Numerical solutions of these equations are obtained by using the Runge-Kutta fourth order method along with the shooting technique. Velocity, temperature, concentration, the skin-friction coefficient, Nusselt number and Sherwood number for variations in the governing thermo physical parameters are computed, analyzed and discussed.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2013, 18, 4; 1151-1164
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Radiation and chemical reaction effects on MHD flow along a moving vertical porous plate
    Autorzy:
    Reddy, G. V. R.
    Reddy, N. B.
    Gorla, R. S. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/265207.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    magnetohydrodynamika
    porowatość
    promieniowanie cieplne
    wymiana ciepła
    wymiana masy
    reakcja chemiczna
    MHD
    porous medium
    thermal radiation
    heat and mass transfer
    chemical reaction
    Opis:
    This paper presents an analysis of the effects of magnetohydrodynamic force and buoyancy on convective heat and mass transfer flow past a moving vertical porous plate in the presence of thermal radiation and chemical reaction. The governing partial differential equations are reduced to a system of self-similar equations using the similarity transformations. The resultant equations are then solved numerically using the fourth order Runge-Kutta method along with the shooting technique. The results are obtained for the velocity, temperature, concentration, skin-friction, Nusselt number and Sherwood number. The effects of various parameters on flow variables are illustrated graphically, and the physical aspects of the problem are discussed.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2016, 21, 1; 157-168
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Heat and mass transfer effects on MHD flow past an inclined porous plate in the presence of chemical reaction
    Autorzy:
    Sandhya, A.
    Ramana Reddy, G. V.
    Deekshitulu, V. S.R.G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1839806.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    reakcja chemiczna
    źródło ciepła
    promieniowanie cieplne
    chemical reaction
    heat source
    inclined plate
    porous medium
    thermal radiation
    Opis:
    The impact of heat and mass transfer effects on an MHD flow past an inclined porous plate in the presence of a chemical reaction is investigated in this study. An effort has been made to explain the Soret effect and the influence of an angle of inclination on the flow field, in the presence of the heat source, chemical reaction and thermal radiation. The momentum, energy and concentration equations are derived as coupled second order partial differential equations. The model is non-dimensionalized and shown to be controlled by a number of dimensionless parameters. The resulting dimensionless partial differential equations can be solved by using a closed analytical method. Numerical results for pertaining parameters, such as the Soret number (Sr), Grashof number (Gr) for heat and mass transfer, the Schmidt number (Sc), Prandtl number (Pr), chemical reaction parameter (Kr), permeability parameter (K), magnetic parameter (M), skin friction (τ), Nusselt number (Nu) and Sherwood number (Sh) on the velocity, temperature and concentration profiles are presented graphically and discussed qualitatively.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2020, 25, 3; 86-102
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Studies on the Tailoring of Particle Size and Micromeritic Properties of Reduced Shock Sensitivity RDX (RSS-RDX)
    Autorzy:
    Ramavat, V.
    Sarangapani, R.
    Reddy, S. T.
    Patil, R. S.
    Gore, G. M.
    Sikder, A. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/951500.pdf
    Data publikacji:
    2013
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
    Tematy:
    crystallization
    RSS-RDX
    micromeritics
    particle size distribution
    Opis:
    The microstructure of explosive particles, as well as formulations, has a significant influence on the shock sensitivity of various energetic formulations. Particle shape and specific size distributions are always important considerations in explosives processing in order to realize better process parameters. The present study aimed to explore crystallization variables required to achieve a specific particle size of Reduced Shock Sensitivity RDX (RSS-RDX). Crystallization process factors such as cooling rate, agitator speed and configuration, etc. have been systematically studied to understand their effect on the particle size. The study also established the crystallization process parameters required to tightly control a specific particle size distribution ranging from 50 to 500 μm by cooling crystallization. Fine particles ranging from 15 to 30 μm were prepared by an ultrasonication technique. Ultrasonic process parameters, including temperature, time and ultrasonic frequency, were studied and the process conditions were optimized. Micromeritic characterization of RSS-RDX revealed the nature of flowability, which in-turn is useful in identifying the ease of processability. Overall, our interest stemmed from an investigation which showed that careful optimization of crystallization variables can lead to a specific particle size distribution.
    Źródło:
    Central European Journal of Energetic Materials; 2013, 10, 4; 581-592
    1733-7178
    Pojawia się w:
    Central European Journal of Energetic Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    R&D of novel medicinal materials for curing cancer: sugar modified Gd-DTPA MRI contrast agents and phospha sugar anti-cancer agents
    Autorzy:
    Yamashita, Y.
    Yamashita, M.
    Fujie, M.
    Suyama, K. A. T.
    Ito, S.
    Reddy, V. K.
    Yamada, M.
    Ogawa, K.
    Ozaki, N.
    Nakamura, S.
    Aoki, T.
    Yu, G.
    Aoshima, K.
    Kato, T.
    Kamikage, N.
    Kiyofuji, K.
    Takehara, Y.
    Sakahara, H.
    Takayanagi, H.
    Oshikawa, T.
    Laurent, S.
    Burtea, C.
    Van der Elst, L.
    Muller, R. N.
    Powiązania:
    https://bibliotekanauki.pl/articles/385218.pdf
    Data publikacji:
    2009
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
    Tematy:
    MRI contrast agent
    sugar-ball-dendrimer
    Gd (III)-DTPA complex
    phospha sugars
    phospholanes
    anticancer agent
    tumor
    Opis:
    Novel Sugar Dendritic Gd-DTPA Complexes for MRI Contrast Agents were prepared and evaluated by in vitro and in vivo methods. The sugar dendritic MRI contrast agents have a good blood vesse pool character, and draw blood vessels and liver cancer remarkably clearer than the clinically using Gd-DTPA. Phospha sugar derivatives or phosphorus heterocyclic derivatives provided by functional groups such as epoxide, bromide, etc., were prepared and evaluated by MTT in vitro method. These phospha sugar derivatives showed excellent activities against leukemia cells as well as solid cancer cells in fashions of (i) higher activity, (ii) wider spectra, (iii) higher selectivity and specificity distingushing healthy and cancer cells, etc., compared with the molecular targeting chemotheraputic anti-cancer agent, Gleevec.
    Źródło:
    Journal of Automation Mobile Robotics and Intelligent Systems; 2009, 3, 4; 80-83
    1897-8649
    2080-2145
    Pojawia się w:
    Journal of Automation Mobile Robotics and Intelligent Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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