Results 251 to 260 of about 1,465,984 (298)
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IEEE Transactions on Communications, 1974
Modern carrier systems have evolved in which all transmission is digital and channels are obtained by time-division multiplexing. A time-division switch, which, as a consequence of this environment is very simply configured, is presented. Random access memories and shift registers are employed in a configuration which differs from the time division ...
Patrick J. Marino +2 more
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Modern carrier systems have evolved in which all transmission is digital and channels are obtained by time-division multiplexing. A time-division switch, which, as a consequence of this environment is very simply configured, is presented. Random access memories and shift registers are employed in a configuration which differs from the time division ...
Patrick J. Marino +2 more
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Switching Time of Nanowire Memory
Journal of Nanoscience and Nanotechnology, 2005Cadmium sulfide nanowires of 10-nm diameter, electrodeposited in porous anodic alumina films, exhibit an electronic bistability that can be harnessed for non-volatile memory. The current-voltage characteristics of the wires show two stable conductance states that are well-separated (conductances differ by more than 4 orders of magnitude) and long lived
A, Varfolomeev +4 more
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Eureka!, 2018
A new technology could take switched-reluctance motors out of the shadow of permanent magnet machines and dispense with the need for rare earth materials.
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A new technology could take switched-reluctance motors out of the shadow of permanent magnet machines and dispense with the need for rare earth materials.
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Optimal control of switching times in switched dynamical systems
42nd IEEE International Conference on Decision and Control (IEEE Cat. No.03CH37475), 2004This paper considers an optimal control problem for switched dynamical systems, where the objective is to minimize a cost functional defined on the state, and where the control variable consists of the switching times. The gradient of the cost functional is derived on an especially simple form, which lends itself to be directly used in gradient-descent
Magnus Egerstedt +2 more
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Optimum switching time for magnetic switches
IEEE Conference Record of the 1988 Eighteenth Power Modulator Symposium, 2003The author discusses the optimization of magnetic switch core area and saturation time as a function of pulse compression ratio. Typical magnetic switch designs require the switch to remain unsaturated until peak charging voltage is reached. The author has found that the most efficient energy transfer occurs when the magnetic switch is allowed to ...
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Optimal Control of Switching Times in Switched Stochastic Systems
Asian Journal of Control, 2014AbstractIn this paper, we solve an optimal control problem for switched stochastic systems using calculus of variations, where the objective is to minimize a cost functional defined on the state and the switching times are the sole control variables. In particular, we focus on the problem in which a pre‐specified sequence of active subsystems is given.
Liu, Xiaomei +4 more
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Switching Parties in a Collaboration at Run-Time
2014 IEEE 18th International Enterprise Distributed Object Computing Conference, 2014During the execution of a service collaboration, a party may drop out for technical reasons or business reasons. In that case, that party must be replaced in the collaboration, at run-time, by a new party. Ideally, the new party can pick up where the old party left.
Shaya Pourmirza +2 more
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Time-Switched Metasurface Antenna
2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI)This contribution presents the analysis and design of a novel class of metasurface-based antennas, whose radiative capabilities are enabled by the properties of the temporal and time-switched metamaterials. In particular, we consider a thin metasurface supporting the propagation of a surface wave that can switch instantaneously its surface impedance ...
Stefanini, Luca +10 more
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On the Switching Time of Subharmonic Oscillators
IBM Journal of Research and Development, 1960The time necessary to change the phase of an idealized subharmonic parametric oscillator from one value to a value differing by 180° is calculated for various values of pump power and switching power. Several conclusions are drawn from the results.
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Robust switching of discrete-time switched linear systems
Automatica, 2012zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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