نتایج جستجو برای: isothermal flow
تعداد نتایج: 494710 فیلتر نتایج به سال:
Successful disease management requires a rapid and sensitive diagnosis method that can recognize early infection even before the manifestation of its clinical signs. The only available field diagnostic tests for foot-and-mouth disease (FMD) are lateral flow devices, commonly known as chromatographic strips. Low sensitivity and inability to detect FMD virus (FMDV) at the serotype level are limit...
Non-Isothermal Displacements with Step-Profile Time Dependent Injections in Homogeneous Porous Media
Miscible non-isothermal flow displacements in homogeneous porous media are modeled and analyzed in flows that involve step-profile velocities that alternate between injection and extraction. The viscosity is assumed to vary with both the concentration and the temperature. The flow is governed by the continuity equation, Darcy's law and the convection-diffusion equations for the concentration an...
Ž . An isothermal haze chamber IHC has been designed, incorporating results from the tests of Ž . earlier instruments held at the 1981 Reno NV workshop. This instrument, named isothermal haze Ž . chamber with discontinuous flow IHCDF , periodically discontinues the flow through the haze chamber in order to form a well-defined region of 100% RH in the center of the chamber. Indeed, tests perform...
In the continuous casting process, fluid flow of molten steel in tundish is a non-isothermal state. Because geometric shape and process parameters multi-strand tundish, behavior each strand quite inhomogeneous, difference temperature, composition inclusion content between great, which directly affects quality products. this paper, flow, heat transfer phenomena trajectories four-strand with with...
In this work, we carry out self –similar solutions of viscous-resistive accretion flows around a magnetized compact object. We consider an axi-symmetric, rotating, isothermal steady accretion flow, which contains a poloidal magnetic field of the central star. The dominant mechanism of energy dissipation is assumed to be the turbulence viscosity and magnetic diffusivity due to the magnetic field...
We demonstrate a multiplexed loop mediated isothermal amplification (LAMP) assay for infectious disease diagnostics, where the analytical process flow of target pathogens genomic DNA is performed manually by moving magnetic beads through a series of plugs in a capillary. Heat is provided by a water bath and the results are read by the naked eye, enabling applications in low resource settings.
Abstract: We consider the system of equations governing a steady flow of polyatomic isothermal reactive gas mixture. The model covers situation when the pressure depends on species concentration and when the diffusion coefficients for each of the species are density-dependent. It is shown that this problem admits weak solution provided the adiabatic exponent for the mixture γ is grater then 7 3 .
The aim of this paper is to compute viscous correction terms for the isothermal quantum Euler system of Degond, Gallego, Méhats (SIAM Multiscale Model Simul., 6, 2007). We derive this model by using a Chapman-Enskog expansion up to order 1. In a last part, we consider a situation where the flow is nearly irrotational in order to get a simplified model.
The model consists of 5 compartments (indicated by integer 1-5). In accordance with literature, cardiac related pulsations is introduced intracranially (by means of B “pseudo” compartment) while the respiration related pulsation is introduced spinally from spinal epidural space (C, T and L). We assume an isothermal flow of an ideal fluid. The model equations are derived by invoking basic conser...
Non-isothermal crystallization kinetics has been traditionally predicted using the Nakamura crystal growth model, which is an integral form of Avrami equation under assumption that non-isothermal can be explained a series infinitesimal isothermal steps. However, model often overpredicts fraction near end because ignoring slower secondary kinetics. In this study, dual proposed to capture both pr...
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