Results 31 to 40 of about 85,458 (111)
Vanadium redox flow batteries: Potentials and challenges of an emerging storage technology [PDF]
, 2016 open4noIn this paper an overview of Vanadium Redox Flow Battery technologies, architectures, applications and power electronic interfaces is given.
Guarnieri, Massimo +3 more
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Practical quantum realization of the ampere from the electron charge
, 2016 One major change of the future revision of the International System of Units (SI) is a new definition of the ampere based on the elementary charge \emph{e}.
Brun-Picard, J. +4 more
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, 2011 This paper reviews the main types of r.f. power amplifiers which are, or may be, used for particle accelerators. It covers solid-state devices, tetrodes, inductive output tubes, klystrons, magnetrons, and gyrotrons with power outputs greater than 10 kW c.
Carter, R. G.
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A superconducting absolute spin valve
, 2018 A superconductor with a spin-split excitation spectrum behaves as an ideal ferromagnetic spin-injector in a tunneling junction. It was theoretical predicted that the combination of two such spin-split superconductors with independently tunable ...
Bergeret, F. S. +4 more
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Conversion of microwave signals by superconducting films in the resistive state [PDF]
The main characteristics of a superconducting thin film microwave mixer, i.e., conversion efficiency and bandwidth are analyzed. The optimum operating regime of the nonlinear element is determined.
Peskovatskiy, S. A. +2 more
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Renewal Approach to the Analysis of the Asynchronous State for Coupled Noisy Oscillators
, 2015 We develop a framework in which the activity of nonlinear pulse-coupled oscillators is posed within the renewal theory. In this approach, the evolution of inter-event density allows for a self-consistent calculation that determines the asynchronous state
Farkhooi, Farzad, van Vreeswijk, Carl
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Imaging Microwave Electric Fields Using a Near-Field Scanning Microwave Microscope
, 1998 By scanning a fine open-ended coaxial probe above an operating microwave device, we image local electric fields generated by the device at microwave frequencies.
Ashfaq S. Thanawalla +8 more
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Integrated approach to energy harvester mixed technology modelling and performance optimisation
, 2008 An energy harvester is a system consisting of several components from different physical domains including mechanical, magnetic and electrical as well as the external circuits which regulate and store the generated energy.
Al-Hashimi, Bashir +4 more
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High-power converters for space applications [PDF]
Phase 1 was a concept definition effort to extend space-type dc/dc converter technology to the megawatt level with a weight of less than 0.1 kg/kW (220 lb./MW). Two system designs were evaluated in Phase 1.
Cooper, Randy, Park, J. N.
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Input current shaped ac-to-dc converters [PDF]
Input current shaping techniques for ac-to-dc converters were investigated. Input frequencies much higher than normal, up to 20 kHz were emphasized. Several methods of shaping the input current waveform in ac-to-dc converters were reviewed.
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