Results 241 to 250 of about 1,254,288 (295)

Adiabatic excitation of multilevel systems

Physical Review A, 1985
We derive and discuss the behavior of several multilevel models relevant to the problem of molecular multiphoton excitation under the action of a quasimonochromatic laser field, the amplitude of which rises slowly and falls rapidly on a certain internal time scale.
, Peterson, , Cantrell
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Emulation of IEEE Excitation System Models Using Micro-Alternator’s Excitation System

2020 IEEE 29th International Symposium on Industrial Electronics (ISIE), 2020
This paper proposes an approach to emulate the behaviour of different IEEE excitation system models or industry provided excitation system models using a micro-alternator in the laboratory. An IGBT based buck converter is used as an exciter for the alternator.
Tanmay Mishra, Gurunath Gurrala
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Chaotic Behavior in Excitable Systems

Annals of the New York Academy of Sciences, 1990
This paper has dealt with biophysically accurate, or plausible, excitation systems. These are obtained from experiments, and so are complicated, often of high order, and are continually being updated by new experimental results. This is especially true for the excitation equations that represent cardiac tissue.
A V, Holden, M J, Lab
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Exciters and Systems of Excitation

Transactions of the American Institute of Electrical Engineers, 1920
IN laying out excitation systems for central power stations continuity of service is the primary requirement. First cost and economy in operation are secondary requirments which must be given due weight.
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Controllability of Excitable Systems

Bulletin of Mathematical Biology, 2001
Mathematical models of cell electrical activity typically consist of a current balance equation, channel activation (or inactivation) variables and concentrations of regulatory agents. These models can be thought of as nonlinear filters whose input is some applied current I (possibly zero) and output is a membrane potential V. A natural question to ask
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Solitonlike excitations in biological systems

Physical Review A, 1985
A model for solitonlike excitation in DNA is presented and assessed in the context of previous models of collective excitations in other biological systems. A qualitative analysis describes the mechanisms of some DNA function, in particular opening of DNA base pairs to initiate protein synthesis.
, Balanovski, , Beaconsfield
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Excitation System Aggregation

2013
Constructing a dynamic equivalent for a power system involves several steps: the partition of the system into coherent areas, the aggregation of coherent generator buses, and the aggregation of the coherent generators and their control devices. These steps have been discussed in previous chapters, including a method in Chap.
Joe H. Chow, Ricardo J. Galarza
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Excitation Systems Performance witn Motor-Driven Exciters

Transactions of the American Institute of Electrical Engineers, 1950
Two criteria of satisfactory systems performance are the ability of the main generator to retain stability and the ability of the exciter set to recover after a disturbance. Normal emergency throw-over times are generally between one and two seconds. This study indicates that for these throw-over times a very substantial margin in system performance ...
A. G. Mellor, M. Temoshok
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Excitable chemical reaction systems I. Definition of excitability and simulation of model systems

Journal of Mathematical Biology, 1975
Using a computer program based on the well-known Crank-Nicolson method, a number of onedimensional chemical reaction-diffusion systems showing “regenerative excitability” are simulated, both on a finite interval and on a circle. Hereby several phenomena known from nerve physiology as travelling trains and pulse omissions have been reproduced.
Karfunkel, H. R., Seelig, F. F.
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Generator over excitation capability and excitation system limiters

2001 IEEE Power Engineering Society Winter Meeting. Conference Proceedings (Cat. No.01CH37194), 2002
Sometimes, power system events have shown the need for generators to operate in the overexcited region to support stable operation. Operation up to, and transiently beyond, the overexcited limits from the capability curve is sometimes required.
A. Murdoch, G.E. Boukarim, B.E. Gott, M.J. D'Antonio, R.A. Lawson   +4 more
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