Results 61 to 70 of about 1,310,010 (183)
Maximum Entropy Closure of Balance Equations for Miniband Semiconductor Superlattices
Entropy, 2016 Charge transport in nanosized electronic systems is described by semiclassical or quantum kinetic equations that are often costly to solve numerically and difficult to reduce systematically to macroscopic balance equations for densities, currents ...
Luis L. Bonilla, Manuel Carretero
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Quantum Perturbation Theory and the Correspondence Principle
, 2020 In (1), standard quantum perturbation theory is developed using Vo(x)+bV(x), W(x)=Wo(x)+bn1(x)+b*bn2(x)+... and E=Eo+E1b+b*bE2+... where b is small. These values are inserted into the time-independent Schrodinger equation and terms with like order of b collected. Multiplying by Wo and integrating over x yields an expression for Ei. Multiplying by Wk(x)
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Invariance principle in the singular perturbations limit
Discrete and Continuous Dynamical Systems - B, 2019 We examine the invariance principle in the stability theory of differential equations, within a general singularly perturbed system. The limit dynamics of such a system is depicted by the evolution of a Young measure whose values are invariant measures of the fast equation.
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IEEE AccessRecent advances in learning algorithms have identified loss surface sharpness as an effective metric for reducing the generalization gap. Building on this principle, Sharpness-Aware Minimization (SAM) was introduced to improve model generalization and ...
Tanapat Ratchatorn, Masayuki Tanaka
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四川大学学报. 自然科学版, 2018 Under the suitable ranges of parameters and given assumptions, by using Ekeland variations principle、mountain pass lemma、concentration compactness lemma and some analysis techniques, Kirchhoff-type equations with critical exponents and nonhomogeneous ...
Ding Ling, WANG Ji-Xiu, ZHANG Dan-Dan
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Using the quantum probability ranking principle to rank interdependent documents [PDF]
, 2010 A known limitation of the Probability Ranking Principle (PRP) is that it does not cater for dependence between documents. Recently, the Quantum Probability Ranking Principle (QPRP) has been proposed, which implicitly captures dependencies between ...
Azzopardi, L. +5 more
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A fiber optic intrusion monitoring system
Moldavian Journal of the Physical Sciences, 2013 A fiber optic intrusion monitoring system comprises a multimode optical fiber, a coherent light source, a CCD, and a processor for generation of the output signal. The system is based on the principle of variation of speckle pattern in the far-field of a
Culeac, Ion +5 more
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Mass-Stiffness Combined Perturbation Method for Mode Shape Monitoring of Bridge Structures
Shock and Vibration, 2019 Identification of the mode shapes through monitoring is one of the key problems in damage diagnosis based on modal parameters especially for damaged structures.
Liye Zhang +3 more
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Intuitionistic fuzzy kernel matching pursuit ensemble based target recognition
Tongxin xuebao, 2015 Considering that the generalization of the learning machine performed poorly in the present intuitionistic fuzzy kernel matching pursuit algorithm(IFKMP)due to its training method and stopping criteria,a new recognition method based on intuitionistic ...
Xiao-dong YU +4 more
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Physics Letters BConvergence aspects of nuclear many-body perturbation theory for ground states of closed-shell nuclei are explored using a Brillouin-Wigner formulation with a new vertex function enabling high-order calculations.
Zhen Li, Nadezda A. Smirnova
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