Results 61 to 70 of about 63,606 (258)

Quantum Lightning Never Strikes the Same State Twice [PDF]

open access: yes, 2017
Public key quantum money can be seen as a version of the quantum no-cloning theorem that holds even when the quantum states can be verified by the adversary.
B Barak   +17 more
core   +2 more sources

Mechanism and Control Analysis of Synchronous Frequency Resonance in Distributed Power Generation System Connected to Grid

open access: yesEnergy Science &Engineering, EarlyView.
Small‐signal modeling reveals that insufficient system damping positions conjugate poles near the imaginary axis, fundamentally explaining the SFR mechanism. A virtual resistance control is consequently proposed to damp the resonance and effectively suppress SFR, which is validated through Hardware‐in‐the‐Loop experiments.
Yujie Gu   +3 more
wiley   +1 more source

Evaluation Of Lightning Current Parameters Using Measured Lightning Induced Voltage On Distribution Power Lines [PDF]

open access: yes2019 11th Asia-Pacific International Conference on Lightning (APL), 2019
In this paper, an algorithm had been proposed to evaluate the lightning current parameters using measured voltage from overhead distribution lines based on lightning location obtained from lightning location system. Moreover, the performance of algorithm had been considered using different samples of induced voltage.
Mahdi Izadi   +2 more
openaire   +1 more source

Visualising gas heating from an RF plasma loudspeaker [PDF]

open access: yes, 2010
In an electro-acoustic transduction mechanism, an ac modulation (here in the audio frequency range) of the electric field in an atmospheric pressure air plasma gives rise to a rapid increase in the gas temperature and dimensions of the gas volume.
Braithwaite, N. St.J   +5 more
core  

Comparative Evaluation of Four Stereotactic Radiosurgery Planning Approaches for Treatment of Posterior Choroidal Melanoma

open access: yesJournal of Medical Radiation Sciences, EarlyView.
This study evaluated four stereotactic radiosurgery planning approaches for posterior choroidal melanoma (CM). Analysis of thirteen CM cases resulted in a clinically meaningful reduction in dose to the brain for Brainlab Elements modulated arcs (BE) and Varian Eclipse HyperArc modulated arcs (HA) compared to Brainlab iPlan dynamic conformal arc therapy
Robert Nigro   +5 more
wiley   +1 more source

Analysis of Thermal Sensitivity by High Voltage Insulator Materials

open access: yesIEEE Access, 2020
Insulators serve bi-fold objectives of holding the conductor and electrical segregation from the grounded structure. For reliable operation of utility, electrical and mechanical strength of insulators are equally significant.
Taeyong Kim   +5 more
doaj   +1 more source

Advances in research on impulse hydro‐turbine technology

open access: yesRiver, EarlyView.
Abstract To accelerate the development of impulse hydro‐turbines and support the efficient utilization of hydropower resources in Southwest China, this paper examines the background, historical development, and research progress of impulse hydro‐turbines.
Xiaochao Li   +7 more
wiley   +1 more source

On the estimation of lightning peak currents from measured fields using lightning location systems [PDF]

open access: yesJournal of Electrostatics, 2004
Although, due to the high variability of key parameters such as the return-stroke speed, it is impossible to determine the lightning current accurately from the remotely measured electric or magnetic field for a given event, we show in this paper that, for an assumed return-stroke model, the statistical estimation (e.g.
Power Systems Laboratory, Swiss Federal Institute of Technology, EPFL-LRE, Lausanne, Switzerland ( host institution )   +4 more
openaire   +2 more sources

Correlative Chemical Imaging to Reveal the Nature of Different Commercial Graphene Materials

open access: yesSmall Methods, EarlyView.
Commercial graphene‐based materials from different sources and of varying complexities were investigated correlatively using commonly employed imaging techniques, including SEM, AFM, ToF‐SIMS, AES, and EDS. ToF‐SIMS combined with SEM was identified as the most effective combination for simultaneously resolving the complex morphology and chemical ...
Robert Schusterbauer   +9 more
wiley   +1 more source

Aircraft Lightning Electromagnetic Environment Measurement [PDF]

open access: yes, 2011
This paper outlines a NASA project plan for demonstrating a prototype lightning strike measurement system that is suitable for installation onto research aircraft that already operate in thunderstorms.
Ely, Jay J.   +2 more
core   +1 more source

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