Results 21 to 30 of about 214,115 (291)

Radio jets from stellar tidal disruptions [PDF]

, 2011
A star that passes too close to a massive black hole will be torn apart by tidal forces. The flare of photons emitted during the accretion of the stellar debris is predicted to be observable and candidates of such events have been observed at optical to ...
Bade, Bannister, Belloni, Biermann, Bloom, Bogdanović, Bower, Bower, Bower, Brunthaler, Cenko, Chatterjee, Chiaberge, Croft, de Vries, Donley, Drake, Elmar Körding, Esquej, Evans, Falcke, Falcke, Falcke, Falcke, Fender, Gal-Yam, Gammie, Gezari, Gezari, Gezari, Giannios, Gupta, Heino Falcke, Herrnstein, Hills, Jester, Kellermann, Komossa, Komossa, Komossa, Körding, Levan, Levinson, Lodato, Lodato, Loeb, Maccarone, Marconi, McHardy, Melia, Merloni, Ofek, Piran, Rees, Sjoert van Velzen, Strubbe, Strubbe, Ulmer, van Velzen, van Velzen, Yuan, Zauderer   +61 more
core   +3 more sources

Power Extraction Strategy of a Robust kW Range Marine Tidal Turbine Based on Permanent Magnet Synchronous Generators and Passive Rectifiers [PDF]

, 2014
This paper presents a kW range marine tidal current power generation system consisting of a fixed pitch marine current turbine (MCT) with two permanent magnet synchronous generators in the turbine shaft, two diode rectifiers (each rectifier is associated
CHARPENTIER, Jean-Frederic, ODEDELE, Nafissah, OLMI, Christophe   +2 more
core   +2 more sources

Evaluation of a Model for Predicting the Tidal Velocity in Fjord Entrances

Energies, 2013
Sufficiently accurate and low-cost estimation of tidal velocities is of importance when evaluating a potential site for a tidal energy farm. Here we suggest and evaluate a model to calculate the tidal velocity in fjord entrances.
Paul Thomassen, Mats Leijon, Emilia Lalander   +2 more
doaj   +1 more source

The tidal stripping of satellites

, 2005
We present an improved analytic calculation for the tidal radius of satellites and test our results against N-body simulations. The tidal radius in general depends upon four factors: the potential of the host galaxy, the potential of the satellite, the
Evans, N. W., Gilmore, G., Kleyna, Jan T., Read, J. I., Wilkinson, M. I.   +4 more
core   +1 more source

Modelling and Performance Analysis of a Tidal Current Turbine Connected to the Grid Using an Inductance (LCL) Filter

Energies, 2023
Nowadays, integrating renewable energy sources, such as tidal power, into the existing power grids of turbines is crucial for sustainable energy generation.
Ladislas Mutunda Kangaji, Lagouge Tartibu, Pitshou N. Bokoro   +2 more
doaj   +1 more source

Fuzzy Supervision Based-Pitch Angle Control of a Tidal Stream Generator for a Disturbed Tidal Input

Energies, 2018
Energy originating in tidal and ocean currents appears to be more intense and predictable than other renewables. In this area of research, the Tidal Stream Generator (TSG) power plant is one of the most recent forms of renewable energy to be developed ...
Khaoula Ghefiri, Aitor J. Garrido, Eugen Rusu, Soufiene Bouallègue, Joseph Haggège, Izaskun Garrido   +5 more
doaj   +1 more source

The origin of the Milky Way globular clusters [PDF]

, 2016
We present a cosmological zoom-in simulation of a Milky Way-like galaxy used to explore the formation and evolution of star clusters. We investigate in particular the origin of the bimodality observed in the colour and metallicity of globular clusters ...
Agertz, Oscar, Gieles, Mark, Renaud, Florent   +2 more
core   +2 more sources

Tidal Power

, 2017
Tidal power is a relatively new area within renewable energy with great potential in some areas of the world. One of the companies working with this is Minesto, and they have developed a technology called Deep Green that uses a kite that is attached to the seabed to generate electricity.
Lembke, Fritiof, Penser, Tarek
openaire   +2 more sources

Investigation of Turbulence Intensity Effects on Tidal Turbine Wakes Through the BEM–CFD Method

Journal of Marine Science and Engineering
The wake characteristics of tidal turbines are significantly influenced by turbulence intensity (TI) and flow velocity in the marine environment. This study employs the Blade Element Momentum (BEM)–CFD method to model two-bladed horizontal tidal turbine ...
Erhu Hou, Yang Li, Lining Zhu, Yanan Wu, Jie Ding, He Wu   +5 more
doaj   +1 more source

Disturbance rejection controller design based on nonlinear with fuzzy approximation technique for a tidal turbine system

Journal of King Saud University: Engineering Sciences, 2023
In this work, a novel disturbance rejection controller based on a nonlinear fractional order proportional integral derivative with fuzzy (NLFOPIDF) approximation and an adaptive law technique for a 160 kW two horizontal axis parts tidal turbine model is ...
Mustafa Wassef Hasan
doaj   +1 more source