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    Wyświetlanie 1-15 z 15
    Tytuł:
    A general study of fundamental solutions in aniotropicthermoelastic media with mass diffusion and voids
    Autorzy:
    Chawla, Vijay
    Kamboj, Deepmala
    Powiązania:
    https://bibliotekanauki.pl/articles/1839675.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    termosprężystość
    dyfuzja masy
    źródło ciepła
    general solution
    fundamental solution
    thermoelastic
    voids
    mass diffusion
    Opis:
    The present paper deals with the study of a fundamental solution in transversely isotropic thermoelastic media with mass diffusion and voids. For this purpose, a two-dimensional general solution in transversely isotropic thermoelastic media with mass diffusion and voids is derived first. On the basis of the obtained general solution, the fundamental solution for a steady point heat source on the surface of a semi-infinite transversely isotropic thermoelastic material with mass diffusion and voids is derived by nine newly introduced harmonic functions. The components of displacement, stress, temperature distribution, mass concentration and voids are expressed in terms of elementary functions and are convenient to use. From the present investigation, some special cases of interest are also deduced and compared with the previous results obtained, which prove the correctness of the present result.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2020, 25, 4; 22-41
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of thermal expansion on flow past an inclined accelerated sectional plate with persistent mass diffusion
    Autorzy:
    Nagarajan, G.
    Sundar Raj, M.
    Muthucumaraswamy, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/27312397.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    rozszerzalność cieplna
    dyfuzja masy
    transformata Laplace'a
    thermal expansion
    mass diffusion
    accelerated
    inclined plate
    isothermal
    Opis:
    In this article, we examined the solution of a homogeneously intensified isothermal inclined infinite plate with constant temperature. The plate is elevated to Tw, and the species accumulation is enhanced at a consistent speed. Under appropriate boundary conditions, the non-dimensional guiding formulae are remedied using the Laplace transform procedure. The effect of velocity, temperature, and concentration on various factors, including thermal and mass Grashof numbers, Schmidt numbers, and duration, is discussed. The velocity increases proportionally to the thermal and mass Grashof numbers, but decreases as the inclined angle, Schmidt numbers and time increase.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2022, 27, 4; 105--116
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical study on flow past an oscillating plate with variable temperature and uniform mass diffusion under chemical reaction
    Autorzy:
    Vijayalakshmi, A. R.
    Selvajayanthi, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/955172.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    reakcja chemiczna
    wymiana ciepła
    dyfuzja masy
    chemical reaction
    oscillating vertical plate
    heat transfer
    mass diffusion
    Opis:
    An numerical study on an unsteady flow past an oscillating semi-infinite vertical plate with variable temperature and uniform mass diffusion under the influence of a first order chemical reaction has been carried out. The dimensionless governing equations are solved by an unconditionally stable and fast converging implicit finite difference scheme. The effects of velocity and temperature for different physical parameters such as the chemical reaction parameter, thermal Grashof number, mass Grashof number and time are analysed. It is observed that due to the presence of first order chemical reaction, the velocity increases during a generative reaction and decreases in a destructive reaction.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2014, 19, 1; 181-193
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    MHD and thermal radiation effects on exponentially accelerated isothermal vertical plate with uniform mass diffusion
    Autorzy:
    Muthucumaraswamy, R.
    Visalakshi, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/265445.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    promieniowanie
    izotermiczność
    płyta pionowa
    dyfuzja masy
    pole magnetyczne
    radiation
    isothermal
    vertical plate
    mass diffusion
    magnetic field
    Opis:
    Thermal radiation effects on an unsteady free convective flow of a viscous incompressible flow of a past an exponentially accelerated infinite isothermal vertical plate with uniform mass diffusion in the presence magnetic field are considered. The fluid considered here is a gray, absorbing-emitting radiation but a non-scattering medium. The plate temperature is raised to Tw and the concentration level near the plate is also raised to Cʹw . An exact solution to the dimensionless governing equations is obtained by the Laplace transform method, when the plate is exponentially accelerated with a velocity u= u0 exp(aʹtʹ) in its own plane against gravitational field. The effects of velocity, temperature and concentration fields are studied for different physical parameters such as the magnetic field parameter, thermal radiation parameter, Schmidt number, thermal Grashof number, mass Grashof number and time. It is observed that the velocity increases with decreasing magnetic field parameter or radiation parameter. But the trend is just reversed with respect to a or t .
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2013, 18, 2; 599-608
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hall effects and rotation effects on MHD flow past an exponentially accelerated vertical plate with combined heat and mass transfer effects
    Autorzy:
    Thamizhsudar, M.
    Pandurangan, J.
    Mathucumaraswamy, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/265402.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    Hall effect
    MHD flow
    rotation
    exponentially
    accelerated plate
    temperature
    mass diffusion
    magnetohydrodynamika
    pole magnetyczne
    prędkość osiowa
    Opis:
    A theoretical solution of flow past an exponentially accelerated vertical plate in the presence of Hall current and MHD relative to a rotating fluid with uniform temperature and mass diffusion is presented. The dimensionless equations are solved using the Laplace method. The axial and transverse velocity, temperature and concentration fields are studied for different parameters such as the Hall parameter (m), Hartmann number (M), Rotation parameter (Ω), Schmidt number, Prandtl number, thermal Grashof number (Gr) and mass Grashof number (Gc). It has been observed that the temperature of the plate decreases with increasing values of the Prandtl number and the concentration near the plate increases with decreasing values of Schmidt number. It is also observed that both axial and transverse velocities increase with decreasing values of the magnetic field parameter or rotation parameter, but the trend gets reversed with respect to the Hall parameter. The effects of parameters m, M, […], Gr and Gc on the axial and transverse velocity profiles are shown graphically.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2015, 20, 3; 605-616
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analogy between thermal and mass diffusion effects of a free convective flow in rectangular enclosure
    Autorzy:
    Ambethkar, Vusala
    Powiązania:
    https://bibliotekanauki.pl/articles/1839737.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
    Tematy:
    free convective flow
    thermal diffusion effects
    mass diffusion effects
    rectangular enclosure
    average Nusselt number
    average Sherwood number
    empirical correlations
    swobodny przepływ konwekcyjny
    efekty dyfuzji termicznej
    efekty dyfuzji masowej
    korelacje empiryczne
    średnia liczba Sherwooda
    średnia liczba Nusselta
    Opis:
    In this investigation, the analogy between thermal and mass diffusive effects of a free convective flow in a rectangular enclosure is emphasized. The upwind finite volume method is used to discretize the governing equations of the continuity, momentum, energy and mass transfer. The novelty in this exploration is to appropriately modify the well-known Semi-Implicit Method for Pressure-Linked Equations (SIMPLE) algorithm so that it suits to the present problem and thereby, the new flow variables such as the temperature and the concentration are computed. An empirical correlation for the average Sherwood number (Sh) that does not exist in literature is suggested in this work. The average Sherwood numbers for distinct fluids (gases and liquids) are calculated, and mass diffusion effects within the horizontal rectangle are analyzed. The average Nusselt numbers (Nu) are calculated for distinct fluids such as liquids (Pr ≫1), liquid metals (Pr≪1) and gases (Pr < 1) for different Rayleigh numbers in the range of 3x105 ≤ RaL ≤ 7x10 9 from relevant empirical correlations existing in the literature. Accordingly, the thermal diffusion effects within the horizontal rectangle are analyzed.
    Źródło:
    Journal of Applied Mathematics and Computational Mechanics; 2020, 19, 4; 5-20
    2299-9965
    Pojawia się w:
    Journal of Applied Mathematics and Computational Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analogy between thermal and mass diffusion effects of a free convective flow in rectangular enclosure
    Autorzy:
    Ambethkar, Vusala
    Powiązania:
    https://bibliotekanauki.pl/articles/1839750.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
    Tematy:
    free convective flow
    thermal diffusion effects
    mass diffusion effects
    rectangular enclosure
    average Nusselt number
    average Sherwood number
    empirical correlations
    swobodny przepływ konwekcyjny
    efekty dyfuzji termicznej
    efekty dyfuzji masowej
    korelacje empiryczne
    średnia liczba Sherwooda
    średnia liczba Nusselta
    Opis:
    In this investigation, the analogy between thermal and mass diffusive effects of a free convective flow in a rectangular enclosure is emphasized. The upwind finite volume method is used to discretize the governing equations of the continuity, momentum, energy and mass transfer. The novelty in this exploration is to appropriately modify the well-known Semi-Implicit Method for Pressure-Linked Equations (SIMPLE) algorithm so that it suits to the present problem and thereby, the new flow variables such as the temperature and the concentration are computed. An empirical correlation for the average Sherwood number (Sh) that does not exist in literature is suggested in this work. The average Sherwood numbers for distinct fluids (gases and liquids) are calculated, and mass diffusion effects within the horizontal rectangle are analyzed. The average Nusselt numbers (Nu) are calculated for distinct fluids such as liquids (Pr ≫1), liquid metals (Pr≪1) and gases (Pr < 1) for different Rayleigh numbers in the range of 3x105 ≤ RaL ≤ 7x10 9 from relevant empirical correlations existing in the literature. Accordingly, the thermal diffusion effects within the horizontal rectangle are analyzed.
    Źródło:
    Journal of Applied Mathematics and Computational Mechanics; 2020, 19, 4; 5-20
    2299-9965
    Pojawia się w:
    Journal of Applied Mathematics and Computational Mechanics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A novel approach for calculating packed column height based on new correlation of mass transfer coefficient
    Autorzy:
    Rahbar-Kelishami, A.
    Bahmanyar, H.
    Hajamini, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/778168.pdf
    Data publikacji:
    2015
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    separation
    liquid-liquid extraction
    packed column
    mass transfer
    column design
    diffusion
    Opis:
    The calculation of column’s height plays an important role in packed columns precise design. This research is based on experimentally measurement of mass transfer coefficients in different heights of packed column to predict its height. The objective of presented work is to introduce a novel conceptual method to predict column height via new correlation for mass transfer coefficient. As the mass transfer coefficient is decreased with increase of column height, the HTU’s are not constant figures along the column so this new approach is called increasing HTU’s. The results of the proposed idea were compared with other correlations and the conventional method i.e. constant HTU’s. Since the results are in very good agreement with experimental data comparing to conventional method, it seems this approach can be a turning point in design of all differential columns like packed columns. Making use of this method is suggested for design of differential columns.
    Źródło:
    Polish Journal of Chemical Technology; 2015, 17, 1; 48-54
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mathematical modeling of random diffusion flows in two-phase multilayered stochastically nonhomogeneous bodies
    Autorzy:
    Chaplya, Y.
    Chernukha, O.
    Davydok, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1938615.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Gdańska
    Tematy:
    diffusion process
    mass flow
    random structure
    Neumann series
    averaging over the ensemble of phase configurations
    Opis:
    An approach for studying stochastical diffusion flows of admixture particles in bodies of multiphase randomly nonhomogeneous structures is proposed, according to which initialboundary value problems of diffusion are formulated for flow functions and methods of solution construction are adapted for the formulated problems. By this approach the admixture diffusion flow is investigated in a two-phase multilayered strip for the uniform distribution of phases under conditions of constant flow on the upper surface and zero concentration of admixture on the lower surface. An integro-differential equation equivalent to the original initial-boundary value problem is constructed. Its solution is found in terms of the Neumann series. Calculation formulae are obtained for the diffusion flow averaged over the ensemble of phase configurations under both zero and constant nonzero initial concentrations. Software is developed, a dependence of averaged diffusion flows on the medium characteristics is studied and general regularities of this process are established.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2015, 19, 3; 297-320
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mass exchange in adjacent layers of grain material stored in silo
    Autorzy:
    Grochowicz, J.
    Kusinska, E.
    Bilanski, W.K.
    Powiązania:
    https://bibliotekanauki.pl/articles/24068.pdf
    Data publikacji:
    1998
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    moisture
    wall load
    temperature
    diffusion
    grain
    absorptive property
    moisture migration
    barley
    hygroscopic property
    mass exchange
    cereal
    storage
    Źródło:
    International Agrophysics; 1998, 12, 2
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Simulation of diffusion flows in two-phase multilayered stochastically nonhomogeneous bodies with non-uniform distribution of inclusions
    Autorzy:
    Chaplya, Y.
    Chernukha, O.
    Davydok, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1938616.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Gdańska
    Tematy:
    diffusion process
    mass flow
    random structure
    Neumann series
    averaging over the ensemble of phase configurations
    beta distribution
    Opis:
    Admixture diffusion flows are investigated in two-phase randomly nonhomogeneous multilayered strips with non-uniform distributions of inclusions. Cases where the most probable disposition of layered inclusions is located near the body boundary on which the mass source acts in the neighborhood of another boundary and in the middle of the body are considered. The initial-boundary value problem is formulated for the function of random mass flow under conditions of a constant flow on the upper surface and zero concentration of the admixture on the lower surface. Calculation formulae are obtained for the diffusion flow averaged over the ensemble of phase configurations in the particular cases of beta-distribution at zero and nonzero initial concentrations. The dependences of the averaged admixture flows on medium characteristics are established. It is shown that if the admixture diffusion coefficient in inclusions is greater than in the matrix, consolidation of inclusions in the middle of the body leads to an increasing diffusion flow. Simulation of the averaged diffusion flows of the admixture in the multilayered strip is performed for different model variants of a probable disposition of phases in the body and their comparative analysis is carried out.
    Źródło:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2015, 19, 3; 321-351
    1428-6394
    Pojawia się w:
    TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    External Mass Transfer Model for Hydrogen Peroxide Decomposition by Terminox Ultra Catalase in a Packed-Bed Reactor
    Autorzy:
    Grubecki, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/952665.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    hydrogen peroxide decomposition
    immobilized terminox ultra catalase
    packed bed
    reactor
    external film diffusion
    mass transfer coefficient
    nadtlenek wodoru
    reaktor
    dyfuzja
    współczynnik przenikania masy
    Opis:
    It is known that external diffusional resistances are significant in immobilized enzyme packed-bed reactors, especially at large scales. Thus, the external mass transfer effects were analyzed for hydrogen peroxide decomposition by immobilized Terminox Ultra catalase in a packed-bed bioreactor. For this purpose the apparent reaction rate constants, kP, were determined by conducting experimental works at different superficial velocities, U, and temperatures. To develop an external mass transfer model the correlation between the Colburn factor, JD, and the Reynolds number, Re, of the type JD = K Re(n-1) was assessed and related to the mass transfer coefficient, kmL. The values of K and n were calculated from the dependence (am kp-1 - kR-1) vs. Re-1 making use of the intrinsic reaction rate constants, kR, determined before. Based on statistical analysis it was found that the mass transfer correlation JD = 0.972 Re-0.368 predicts experimental data accurately. The proposed model would be useful for the design and optimization of industrial-scale reactors
    Źródło:
    Chemical and Process Engineering; 2017, 38, 2; 307-319
    0208-6425
    2300-1925
    Pojawia się w:
    Chemical and Process Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Unsteady MHD thermal diffusive and radiative fluid flow past a vertical porous plate with chemical reaction in slip flow regime
    Autorzy:
    Ravi Kumar, D.
    Jayarami Reddy, K.
    Raju, M. C.
    Powiązania:
    https://bibliotekanauki.pl/articles/265452.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    swobodna konwekcja
    magnetohydrodynamika
    przenoszenie ciepła
    dyfuzja termiczna
    promieniowanie
    reakcja chemiczna
    poślizg
    MHD
    free convection
    heat and mass transfer
    slip flow regime
    thermal diffusion
    radiation
    chemical reaction
    Opis:
    An analytical solution of an MHD free convective thermal diffusive flow of a viscous, incompressible, electrically conducting and heat-absorbing fluid past a infinite vertical permeable porous plate in the presence of radiation and chemical reaction is presented. The flow is considered under the influence of a magnetic field applied normal to the flow. The plate is assumed to move with a constant velocity in the direction of fluid flow in slip flow regime, while free stream velocity is assumed to follow the exponentially increasing small perturbation law. The velocity, temperature, concentration, skin friction, Nusselt number and Sherwood number distributions are derived and have shown through graphs and tables by using the simple perturbation technique.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2019, 24, 1; 117-129
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ metody suszenia na przebieg rehydracji suszy z korzeni pietruszki i pasternaku®
    The effect of drying methods on the rehydration of parsley and parsnip roots®
    Autorzy:
    Sitkiewicz, I.
    Janowicz, J.
    Kadzińska, J.
    Krupińska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/228159.pdf
    Data publikacji:
    2017
    Wydawca:
    Wyższa Szkoła Menedżerska w Warszawie
    Tematy:
    rehydracja
    susz korzeni pietruszki i pasternaku
    zmiany masy i objętości podczas rehydracji
    współczynnik dyfuzji wody
    rehydration
    dried parsley and parsnip roots
    mass and volume change during rehydration
    water diffusion
    Opis:
    Korzenie pietruszki i pasternaku wysuszone metodą konwekcyjną, konwekcyjno-mikrofalową i konwekcyjno-próżniową poddano rehydracji w wodzie. Stwierdzono wpływ metody suszenia na przebieg procesu rehydraji. Susz z korzeni pietruszki charakteryzował się lepszymi właściwościami rekonstytucyjnymi w porównaniu do suszu z korzeni pasternaku, a suszenie konwekcyjno-próżniowe okazało się najlepszą z badanych metod suszenia.
    The roots of parsley and parsnip dried by convection, microwave- convection and vacuum-convection were then rehydrated in water. The effect of drying methods on the rehydration process was studied. Dried of parsley roots were characterized by better reconstitutive properties than dried parsnip roots. Convection-vacuum was the best method for drying parsley and parsnip roots.
    Źródło:
    Postępy Techniki Przetwórstwa Spożywczego; 2017, 2; 74-81
    0867-793X
    2719-3691
    Pojawia się w:
    Postępy Techniki Przetwórstwa Spożywczego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of the molecular dynamics method for modelling of mass transfer on the border of Ni-Al bimetal
    Zastosowanie metody dynamiki molekularnej do modelowania transferu masy na granicy bimetalu Ni-Al
    Autorzy:
    Starostenkov, M.
    Demina, I.
    Popova, G.
    Denisova, N.
    Smolarz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/408811.pdf
    Data publikacji:
    2012
    Wydawca:
    Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
    Tematy:
    modelowanie komputerowe
    proces dyfuzji
    wakans
    metoda dynamiki molekularnej
    atom międzywęzłowy
    sieć krystaliczna
    transport masy
    method of computer modelling
    diffusion process
    vacancy
    method of molecular dynamics
    internodal atom
    crystalline lattice
    mass transfer
    Opis:
    One of the basic issues of examination of process of interaction of two-component alloys is the study of the mass transfer process in the presence of dot flaws: internodal atoms and vacancies. The study of this process in real experiments is impossible; therefore it is reasonable to apply computer modelling. The authors present a model of Ni-Al bimetal diffusion process produced by the method of molecular dynamics.
    Jednym z podstawowych zagadnień analizy procesu interakcji stopów dwuskładnikowych jest badanie procesu wymiany masy w obecności defektów punktowych: atomów międzywęzłowych i wakansów. Badania tego procesu w rzeczywistych eksperymentach jest niemożliwe, dlatego uzasadnione jest zastosowanie modelowania komputerowego. Autorzy przedstawiają model procesu dyfuzji w bimetalu Ni-Al stworzony metodą dynamiki molekularnej.
    Źródło:
    Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2012, 1; 36-38
    2083-0157
    2391-6761
    Pojawia się w:
    Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-15 z 15

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