Results 241 to 250 of about 1,160,707 (276)
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Smart level crossing

2018 16th International Conference on Intelligent Transportation Systems Telecommunications (ITST), 2018
The aim of the smart level crossing project is to improve the safety of rail and road systems without compromising the regularity of trains. The LC must become interactive with its environment by integrating new communication technologies with the train and road users.
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Optical Level Crossings

1990
We discuss the behavior of two coupled optical modes, specializing to the case of a clockwise and a counter-clockwise wave in an optical ring with backscattering. Generally the coupling constant is complex-valued; the limiting cases of conservative and dissipative coupling are emphasized.
J. P. Woerdman, R. J. C. Spreeuw
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Antiadiabatic theorem for crossing levels

Physical Review Letters, 1989
We consider in this note the time dependence of a system for which two levels (which are not in general decoupled) accidentally cross (or almost cross) for some value of the parameters of the Hamiltonian. We show that for a well-defined class of crossings or narrowly avoided crossings, in which the Hamiltonian changes slowly on its own scale, the ...
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Living systems: Cross-level hypotheses

Behavioral Science, 1965
The preceding article considered salient characteristics of the subsystem and system-wide processes which generally occur at all levels of living systems. Using the concepts developed in that article, the present exposition states 165 hypotheses that may be applicable to two or more levels of living systems. Some are original with the author. Some have
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Level Crossing Estimation

2008
This chapter describes a basic level crossing estimation method (LCE) for steady-state (i.e., limiting) probability distributions in queues, storage processes and related stochastic models. LCE is also called: level crossing computation, system point estimation (or computation).
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Level-Crossing Principles

2019
Abstract This chapter introduces normative externalism about epistemology. It takes what is central to normative externalism to be the denial of level-crossing principles. A level-crossing principle says there is a necessary connection between the propriety of a belief (in some sense of propriety), and the propriety of believing that ...
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Level crossing

New Scientist, 2020
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Origin Of Level Crossing Method

2008
This chapter presents a condensed version of the original development of the level crossing method ( LC ) for deriving probability distributions of state variables in stochastic models.
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Cross‐Level/Ecological Inference

2009
AbstractThis article reports the main methodological approaches to the statistical problem. It describes the fundamental indeterminacy of the problem. It also provides a framework that coherently binds the variety of approaches that have been proposed to address this problem.
Wendy Tam Cho, Charles F. Manski
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Molecular Level-Crossing Spectroscopy

The Journal of Chemical Physics, 1966
Classical and quantum formulations are presented for the effects of level crossings on the angular distribution of molecular resonance fluorescence. It is shown that a study of the ``molecular Hanle effect,'' or its electric-field analog, may be used to determine the product of the radiative lifetime ρv′J′ with the magnetic moment μm, or the electric ...
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