Results 21 to 30 of about 146,403 (298)
A novel dual-band wide-angle ultra-thin absorber composed of dual closed-concentric ten-point stars with polarization independence is presented in this article. The ten-point stars formed resonators are engraved on low cost FR4 substrate. The EM absorber
K. P. Kaur, T. Upadhyaya
doaj +1 more source
Dynamics of Heaving Buoy Wave Energy Converters with a Stiffness Reactive Controller
Heaving buoy wave energy converters (WEC) are floating oscillators, commonly modeled as single-degree-of-freedom vibrating systems. As the wave frequencies change according to the sea state, these devices must be controlled to maximize energy absorption.
Ahmed H. Sakr +2 more
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Fred Olsen is currently testing their latest wave energy converter (WEC), Lifesaver, outside of Falmouth Bay in England, preparing it for commercial operation at the Wavehub test site.
Marta Molinas +3 more
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Modeling of a Point Absorber for Energy Conversion in Italian Seas
In the present paper, we investigate the feasibility of wave electricity production in Italian seas by the deployment of the Seabased wave energy converter (WEC).
Renata Archetti +4 more
doaj +1 more source
Discovery of a Metal-Line Absorber Associated with a Local Dwarf Starburst Galaxy [PDF]
We present optical and near-infrared images, H I 21 cm emission maps, optical spectroscopy, and Hubble Space Telescope/Space Telescope Imaging Spectrograph ultraviolet spectroscopy of the QSO/galaxy pair SBS 1122+594/IC 691.
Babul A. +6 more
core +3 more sources
Model Predictive Control of a Wave Energy Converter with Discrete Fluid Power Power Take-Off System
Wave power extraction algorithms for wave energy converters are normally designed without taking system losses into account leading to suboptimal power extraction.
Anders Hedegaard Hansen +2 more
doaj +1 more source
The control problem in wave energy continues to remain an open question. This is mainly attributed to the difficulties associated with developing effective, yet economically viable, wave energy-harnessing control strategies, such as resource irregularity,
Mohammed Jama +3 more
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A Statistical Analysis for Optimisation of a Hybrid BBDB-PA in Mantanani Island, Sabah
The hybrid form of wave energy converter (WEC) is a recent advancement in research concerning harvesting energy from the ocean. This study investigates the effect of size and position of the point absorber integrated with a backward bent duct buoy.
Muhamad Aiman Jalani +6 more
doaj +1 more source
Wave Energy Assessment along Sicilian Coastline, Based on DEIM Point Absorber
The use of renewable energy sources is one of the most relevant goals to be achieved in order to match the climate protection targets. As a case study, the paper shows the current electrical energy production by sources in the Sicilian context. Among the
Vincenzo Franzitta +2 more
doaj +1 more source
Energy-dependent evolution in IC10 X-1: hard evidence for an extended corona and implications [PDF]
We have analyzed a ~130 ks XMM-Newton observation of the dynamically confirmed black hole + Wolf-Rayet (BH+WR) X-ray binary (XB) IC10 X-1, covering ~1 orbital cycle. This system experiences periodic intensity dips every ~35 hr.
Barnard, R. +5 more
core +2 more sources

