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Sunday, July 12, 2020 | History

3 edition of Study of multi-dimensional radiative energy transfer in molecular cases found in the catalog.

Study of multi-dimensional radiative energy transfer in molecular cases

Study of multi-dimensional radiative energy transfer in molecular cases

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  • 13 Currently reading

Published by Institute for COmputational and Applied Mechanics, Old Dominion University, National Aeronautics and Space Administration, National Technical Information Service, distributor in Norfolk, Va, [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Heat -- Radiation and absorption.,
  • Monte Carlo method.

  • Edition Notes

    Statementby Jiwen Liu and S.N. Tiwari.
    SeriesNASA contractor report -- NASA CR-194613., ODU/ICAM report -- 93-102., NASA contractor report -- NASA CR-194613., ODU/ICAM report -- 93-102.
    ContributionsTiwari, S. N., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL14699469M

    In-depth study of Sn-based composite materials as anode for high energy Na-ion batteries. Abstracts of Papers of the American Chemical Society , Malkov, M. A.; Diamond, P. H.; Sagdeev, R. Z., Positive charge prevalence in cosmic rays: Room for dark matter in the positron spectrum. The minimum energy path for photoisomerization of the minimal retinal protonated Shiff base model tZt-penta-3,5-dieniminium cation (cis-C5H6NH2+) is computed using MC−SCF and multireference Møller−Plesset methods. The results show that, upon excitation to the spectroscopic state, this molecule undergoes a barrierless relaxation toward a configuration where the excited and ground states Cited by:

    This banner text can have markup.. web; books; video; audio; software; images; Toggle navigation. A model of the UV curing process that includes the coupled cure kinetics and heat transfer is used to motivate the SCC scheme as well as the inherent optimization problem in this process. Then, the SCC process is cast as a hybrid system in which the addition of each layer switches the underlying state space to one with a higher by: 8.

    An applied study of the various (conductive, convective, and radiative) heat transfer mechanisms in solid and fluid systems both transient and steady-state. Engineering applications include: conduction in solids and fluids, free and forced convection in fluids, radiation, boiling and condensing fluids, and design of heat exchangers. Journal of Photonics for Energy Neurophotonics Optical Engineering Ebooks Advanced Search > Home > Proceedings > Volume


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Study of multi-dimensional radiative energy transfer in molecular cases Download PDF EPUB FB2

Radiative Energy Transfer presents the proceedings of the symposium on interdisciplinary aspects of radiative energy transfer held in Philadelphia, Pennsylvania on FebruaryThe book includes topics on the two main classical directions of radiative transfer: diagnostic techniques and.

Get this from a library. Study of multi-dimensional radiative energy transfer in molecular cases. [Jiwen Liu; S N Tiwari; United States. National Aeronautics and Space Administration.]. The assumption of a gray participating medium, although it simplifies matters appreciably, may not be valid for many cases, e.g., for molecular-gas-particulate mixtures.

Absorption and emission in molecular gases occurs over a multitude of very narrow spectral lines, Cited by: Resonance energy transfer, also known as Forster- or fluorescence- resonance energy transfer, or electronic energy transfer, is a photonic process whose relevance in many major areas of science is.

expensive for multi-dimensional radiative transfer simulations. For example, to compute molecular level populations for a 2D disk model having vertic al and 50 radial grid points.

overall problem to a more tractable form in modeling multi-dimensional radiative heat transfer in glass. Homsy and Walker @2# pointed out that the Rosseland’s assumption would break down at the surface, but no method was suggested to correct for the errors.

An alternative approach is. @article{osti_, title = {Atmospheric aerosols}, author = {Twomey, S}, abstractNote = {All aspects of aerosol physics important in the oformation, evolution and removal of particulate material in the atmosphere are presented, and the influence of such particles on the climate and weather are outlined.

The book opens with a discussion of the physics of aerosols and derives some f the more. Extending triplet lifetimes with 3 IL states, as illustrated by these examples, was desired for applications ranging from hydrogen production using solar energy to oxygen sensing, and it was also useful for chromophores in multicomponent chromophore-spacer-quencher supramolecular systems for more efficient electron- or energy-transfer over Cited by: Energies, an international, peer-reviewed Open Access journal.

Information. For Authors For Reviewers For Editors For Librarians For Publishers For Societies. Conduction heat transfer occurs due to the interactions of molecular (or smaller) scale energy carriers within a material.

Radiation heat transfer is energy transferred as elec-tromagnetic waves. In a flowing fluid, conduction heat transfer occurs in the presence of energy transfer due to bulk motion (which is not a heat transfer) and this.

procedure to study the steady state combined conductive-radiative heat transfer in two-dimensional irregular geometries. Using this technique, both straight and curvilinear boundaries can be treated. The finite-volume method is employed to solve the energy equation and the discrete ordinates.

The thermal conductivity of a material is a measure of its ability to conduct is commonly denoted by, or. Heat transfer occurs at a lower rate in materials of low thermal conductivity than in materials of high thermal conductivity.

The non-greenhouse theory of Nikolov (and now Zeller-Nikolov) continues to live on, most recently in this article I’ve been asked about on social media.

In short, it is the theory that there really isn’t a so-called “greenhouse effect”, and that the excess planetary surface temperatures on Earth, Venus, and other planets above the Stefan-Boltzmann (SB) temperature calculated from the.

We review our recent work on multi-dimensional coherent optical spectroscopy (MDCS) of semiconductor nanostructures.

Two approaches, appropriate for the study of semiconductor materials, are presented and compared. A first method is based on a non-collinear geometry, where. Monte Carlo radiative transfer 15 Dust radiative equilibrium Due to the nature of its opacity, dust generally scatters and absorbs optical radiation, and emits infrared radiation.

For grains larger than about A in radius, we can usually assume that the dust is in thermal equilibrium with the surrounding gas (we will address smaller. In this work, a two-dimensional (2D) model for wood particle drying, devolatilization, and char conversion is presented and validated against experimental studies of devolatilization of a large, dry, cylindrical birch wood log.

The wood log’s internal distributions of temperature, solid species densities, gas density, and gas species mass fractions, together with the internal pressure. Energy Transfer in Photosystem I of Cyanobacteria Synechococcus elongatus: Model Study with Structure-Based Semi-empirical Hamiltonian and Experimental Spectral Density, M.

Yang, A. Damjanovic, H. Vaswani, and G.R. Fleming. The purpose of the work described here was to investigate the effects of design and operating parameters on the performance of an adsorption cooling system.

An unsteady Computational Fluid Dynamics (CFD) coupled with heat a mass transfer model was created for predicting the flow behaviour, pressure, temperature, and water adsorption by: 1.

We introduce a radiative heat transfer coefficient or radiative conductance through () Comparison with the developed form of the Boltzmann Equation (), plus a little algebra, gives)T+T()T+T(F=)T-T(A Q =h 2 2 2 r σε 9 If the temperatures of the energy-exchanging bodies are not too different, this can be approximated by ( Energy-level alignment at interfaces is important for understanding and optimizing optoelectronic and photocatalytic properties.

In this work, we study the level alignment at the interface between graphene fluoride and boron nitride monolayers. These two-dimensional (2D) semiconductors are representative wide-bandgap components for van der Waals (vdW) by: 5.

We introduce a radiative heat transfer coefficient or radiative conductance through Q)T-T(Ah= r 8 () Comparison with the developed form of the Boltzmann Equation (), plus a little algebra, gives)T+T()T+T(F=)T-T(A Q =h 2 2 2 r 9 If the temperatures of the energy-exchanging bodies are not too different, this can be.Non-radiative decay processes recognised in a traditional Jablonski diagram include internal conversion (IC, i.e.

an energy conserving transfer of population between states of the same spin multiplicity) and intersystem crossing (ISC, whereby population transfers to a state of different multiplicity, e.g. S 1 T 1, where T 1 represents the Cited by: () Preconditioned Krylov subspace methods for solving radiative transfer problems with scattering and reflection.

Computers & Mathematics with Applications() Accurate estimate of drag forces using particle-resolved direct numerical by: