Results 291 to 300 of about 1,548,949 (331)
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1987
Usually in Quantum Mechanics one is given the potential of a system and one wishes to find the energy levels and eigenfunctions if the particle is bound, or the wave functions and hence the amount of scattering off this potential if the particle is free.
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Usually in Quantum Mechanics one is given the potential of a system and one wishes to find the energy levels and eigenfunctions if the particle is bound, or the wave functions and hence the amount of scattering off this potential if the particle is free.
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Type of inversion problem in physics: An inverse emissivity problem
Physical Review E, 2001Inversion problems have recently drawn vast amounts of attention from the physics community due to their potential widespread applications. In this Rapid Communication, a different type of inversion problem in physics is proposed: an inverse emissivity problem, which aims to determine the emissivity g(nu) by measuring only the total radiated power J(T).
Denming Ming +5 more
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1998
Click on the DOI link to access the article (may not be free). ; In this chapter, we formulate basic inverse problems and indicate their applications. The choice of these problems is not random. We think that it represents their interconnections and some hierarchy.
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Click on the DOI link to access the article (may not be free). ; In this chapter, we formulate basic inverse problems and indicate their applications. The choice of these problems is not random. We think that it represents their interconnections and some hierarchy.
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Journal of Mathematical Physics, 1971
Let UK(t) be a one-parameter operator family of positive type in a Hilbert space K and U(t) its minimal unitary dilation with infinitesimal generator H. If UK(t) is a contractive semigroup, then H is not positive. If in addition UK(t)→0 for t → ∞, then there exists a state φ∈K on which H is not defined.
James A. LaVita +2 more
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Let UK(t) be a one-parameter operator family of positive type in a Hilbert space K and U(t) its minimal unitary dilation with infinitesimal generator H. If UK(t) is a contractive semigroup, then H is not positive. If in addition UK(t)→0 for t → ∞, then there exists a state φ∈K on which H is not defined.
James A. LaVita +2 more
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2011
In considering the propagation of sound through fluid or elastic media (or light through optical media, or heat through materials, etc.), it is usual to first address the so-called “forward problem.” Specifically, one calculates the sound (light, heat) field assuming knowledge of both the medium properties and of the physics governing the radiation ...
James F. Lynch +2 more
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In considering the propagation of sound through fluid or elastic media (or light through optical media, or heat through materials, etc.), it is usual to first address the so-called “forward problem.” Specifically, one calculates the sound (light, heat) field assuming knowledge of both the medium properties and of the physics governing the radiation ...
James F. Lynch +2 more
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An inverse problem in viscoelasticity
Journal of Inverse and Ill-Posed Problems, 1994Summary: We consider an isotropic viscoelastic body occupying the half-space \( \{(x_ 1, x_ 2, x_ 3, t)\in \mathbb{R}^ d\): \(x_ 3>0\}\). Specific Neumann boundary conditions are prescribed. The object of our investigation is to find four unknown functions appearing in the integrodifferential system governing the vibrations of the body: the density ...
Zh. Sh. Ulekova +2 more
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Clouds and the inversion problem
Journal of Quantitative Spectroscopy and Radiative Transfer, 1968Limb darkening inversion analyzed by earth atmosphere model with imbedded cloud, discussing radiances inversion for various cloud covers and ...
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, 1982 The inverse problem of geophysics implies extracting information about the object of interest from experimental data (Goltsman 1977).
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Navigating financial toxicity in patients with cancer: A multidisciplinary management approach
Ca-A Cancer Journal for Clinicians, 2022Grace Li Smith +2 more
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