Results 201 to 210 of about 535,352 (239)

Approximate network loading and dual-time-scale dynamic user equilibrium

Transportation Research Part B: Methodological, 2011
Abstract In this paper we present a dual-time-scale formulation of dynamic user equilibrium (DUE) with demand evolution. Our formulation belongs to the problem class that Pang and Stewart (2008) refer to as differential variational inequalities. It combines the within-day time scale for which route and departure time choices fluctuate in continuous
Friesz, Terry L., Kim, Taeil, Kwon, Changhyun, Rigdon, Matthew A.   +3 more
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Stability issues in dual time scale systems

Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301), 2002
The paper presents some results on global exponential stability of linear time invariant systems with different time scales. Once fast and slow subsystems are derived, and controllers synthesized using Reaching Law Approach, global closed loop stability is derived for the whole system using Lyapunov methods.
POLLINI, LORENZO, INNOCENTI, MARIO, GRECO L.   +2 more
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Dual time scale measurements of the multiexponential fluorescence decay of quinacrine mustard

Optics Communications, 1981
Abstract The fluorescence decay of Quinacrine Mustard has been measured with good accuracy by means of a dual time scale digitizer-averager. Least-squares analysis of the experimental data with appropriate statistical weights has been performed. Values of the time constants for three componets have been obtained.
DE SILVESTRI, SANDRO, F. Docchio, LAPORTA, PAOLO, LONGONI, ANNACHIARA, ZARAGA, FEDERICO   +4 more
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Subnanosecond fluorescence waveforms measurements with a dual time-scale microprocessor-controlled averager

Review of Scientific Instruments, 1981
This paper presents a microprocessor-controlled apparatus for the measurement of fast fluorescence waveforms. This apparatus features a dual-time scale for the analysis of multiexponential decays. A sampling oscilloscope is used as the sampling device. The sampling time is externally controlled by means of a staircase reference voltage.
F. DOCCHIO, LONGONI, ANTONIO FRANCESCO, ZARAGA, FEDERICO   +2 more
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Dual time-scale distributed capacity allocation and load redirect algorithms for cloud systems

Journal of Parallel and Distributed Computing, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Danilo Ardagna, Sara Casolari, Michele Colajanni, Barbara Panicucci   +3 more
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Computing Dual Time-scale Dynamic User Equilibria

2010
In this paper we summarize a dual-time scale formulation of dynamic user equilibrium with demand growth due to Friesz et al (2008). This formulation belongs to the problem class that Pang and Stewart (2008) refer to as di§erential variational inequalities.
Friesz, Terry L., Kim, Tae I., Kwon, Changhyun, Rigdon, Matthew A.   +3 more
openaire   +1 more source

Dual-Time-Scale Ion Acceleration Dynamics in Hall Thrusters

Physical Review Letters
We report the first direct observation using a retarding potential analyzer of time-resolved ion energy distribution functions (IDFs) in a Hall thruster (HT) on two distinct time scales corresponding to the breathing mode (∼kHz) and the ion transit time oscillation (ITTO, ∼100  kHz).
Q. Delavière–Delion, F. Gaboriau, G. Fubiani, L. Garrigues   +3 more
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Dual-time-scale simulation of dynamics and reconfiguration of fiber optical networks

2012 14th International Conference on Transparent Optical Networks (ICTON), 2012
We describe an approach to simulate the power transients in complex (branched, ring, or mesh) transparent fiber optical networks. Simulations are performed at two time scales: first, the signal power dynamics in Erbium-doped fiber amplifiers is modeled at (sub-) millisecond scale using statistical signal descriptions.
Nikolay Karelin, Andre Richter, Igor Koltchanov, Sergei Mingaleev, Hadrien Louchet, Konstantin Kuzmin   +5 more
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Power Plant Systems Operational Scheduling Using a Dual-Time Scale

10th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, 2004
One of the most challenging problems in the electric power generation business is balancing short term productivity with the optimal level of production over a long time period. In this paper a systematic approach to the modeling of gas turbine power plants for long term generation scheduling is introduced.
Yongjun Zhao, Vitali Volovoi, Mark Waters, Dimitri Mavris   +3 more
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Dual Time Scales in a Wave Problem Governed by Coupled Nonlinear Equations

SIAM Review, 1981
The method of multiple time scales is used to obtain a uniformly valid perturbation solution for initial value problems (periodic or isolated initial disturbance) arising in shallow water motion or in compressible gas flow. The results are used to modify the original equations so as to lead to a particularly convenient problem formulation.
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