Results 251 to 260 of about 146,403 (298)
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Biological evaluation of absorbent paper points
International Endodontic Journal, 1985Summary. The biocompatibility of absorbent paper points was evaluated by a haemolysis test and a tissue culture agarose overlay test. One type of paper points produced marked haemolytic activity and a cytotoxic response in the overlay test. The other types tested showed minimal haemolytic activity and no cytotoxicity.
B, Moller, A, Hensten-Pettersen
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Internally-resonant broadband point wave energy absorber
Energy Conversion and Management, 2021Abstract Motivated by the need for broadband point wave energy absorbers (PWAs) whose response is insensitive to the frequency of the incident waves, this work exploits a two-to-one internal resonance energy pump to design a PWA with improved response capabilities. The proposed PWA consists of two elastically-coupled nonlinear oscillators in the form
Mohammad A. Khasawneh, Mohammed F. Daqaq
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Shore Protection by Point-Absorbers
Civil Engineering in the Oceans VI, 2005The capture of wave energy by point-absorber floats has been a popular topic in the wave-energy conversion field for more than two decades. Analysts have undertaken many studies devoted to the optimization of the absorbers and the prediction of their capture widths — the crest width from which the wave energy is supplied.
Michael E. McCormick +2 more
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Active Frequency Selective Surface Absorber With Point-to-Point Biasing Control System
IEEE Antennas and Wireless Propagation Letters, 2021A frequency selective surface (FSS) absorber with a biasing control system is presented in this letter. The absorber consists of the top-layer FSS structure, the bottom-layer metal sheet, and an air spacer in between. The biasing circuit is controlled by a single-chip microcomputer with constant current outputs and each output port is connected to one ...
Hang Yuan +4 more
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Maximising absorbed energy using neuro-adaptive controller for heaving point absorbers
2018 5th International Conference on Renewable Energy: Generation and Applications (ICREGA), 2018This paper presents a computation-friendly control approach to improve extracted power from sea waves with heaving wave energy converter. A Lyponov function based neuro-adaptive inverse controller is proposed for velocity tracking of the heaving buoy under resonance condition for maximum power transfer.
Muhammad Saleheen Aftab, Addy Wahyudie
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Point-absorber survivability analysis with collaborative CFD
2023Dehlsen Associates, LLC (DA) is currently developing a preliminary design of its C1P6 wave energy device. The C1P6 is a floating point-absorber with a direct-drive high performance linear generator. This presentation will explore preliminary analysis of computational fluid dynamics (CFD) on a scaled C1P6 model under extreme sea states conducted by ...
Macolini, Kate +3 more
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Research on the Performance of Point Absorber
Advanced Materials Research, 2014Rational exploitation of wave energy makes great contribution to relief the current global energy crisis. Power generation has been taken into the agenda as the main form to utilize wave energy. The point absorber in this paper is simplified to three modules: floater, pontoon and chain.
Xiong Bo Zheng, Yu Nong Yang, Peng Xie
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