Results 21 to 30 of about 193,514 (294)

Short-Term Forecasting of Wake-Induced Fluctuations in Offshore Wind Farms

open access: yesEnergies, 2019
The increasing share of offshore wind energy traded at the spot market requires short term wind direction forecasts to determine wake losses and increased power fluctuations due to multiple wakes in certain wind directions.
Arslan Salim Dar, Lüder von Bremen
doaj   +1 more source

Ship Wake Detection Based on One-Dimensional Convolutional Neural Network

open access: yes水下无人系统学报, 2023
In order to improve the detection accuracy of ship wake, this paper proposed a ship wake detection method based on a one-dimensional convolutional neural network (1DCNN).
Changsheng YANG, Wenbo GOU, Hong LIANG
doaj   +1 more source

Detecting exotic wakes with hydrodynamic sensors [PDF]

open access: yesTheoretical and Computational Fluid Dynamics, 2019
Wake sensing for bioinspired robotic swimmers has been the focus of much investigation owing to its relevance to locomotion control, especially in the context of schooling and target following. Many successful wake sensing strategies have been devised based on models of von Karman-type wakes; however, such wake sensing technologies are invalid in the ...
Mengying Wang, Maziar S. Hemati
openaire   +2 more sources

Enhancement and suppression effects resulting from information structuring in sentences [PDF]

open access: yes, 2009
Information structuring through the use of cleft sentences increases the processing efficiency of references to elements within the scope of focus.
A. Almor   +39 more
core   +1 more source

Wake Component Detection in X-Band SAR Images for Ship Heading and Velocity Estimation

open access: yesRemote Sensing, 2016
A new algorithm for ship wake detection is developed with the aim of ship heading and velocity estimation. It exploits the Radon transform and utilizes merit indexes in the intensity domain to validate the detected linear features as real components of ...
Maria Daniela Graziano   +2 more
doaj   +1 more source

A Survey of the Scattering Characteristics and Detection of Aircraft Wake Vortices

open access: yesLeida xuebao, 2017
Aircraft wake vortex is a pair of strong counter-rotating vortices and has attracted considerable attention in various fields including aviation safety and atmospheric physics.
Li Jianbing   +3 more
doaj   +1 more source

Preliminary Results of Ship Detection Technique by Wake Pattern Recognition in SAR Images

open access: yesRemote Sensing, 2020
Recently, international agencies for border security ask for an improvement of the actual Maritime Situational Awareness. This manuscript presents preliminary results of a detection technique of go-fast boats, whose utilization in illegal affairs is ...
Maria Daniela Graziano
doaj   +1 more source

Study on Kelvin wake scattering characteristics of turning ship

open access: yesZhongguo Jianchuan Yanjiu, 2023
ObjectiveThis study focuses on the turning ship Kelvin wake and its electromagnetic scattering characteristics in order to provide a theoretical foundation for the detection and recognition of nonlinear ship wakes.
Jianan YAN, Ding NIE, Min ZHANG
doaj   +1 more source

VLSI implementation of an energy-aware wake-up detector for an acoustic surveillance sensor network [PDF]

open access: yes, 2006
We present a low-power VLSI wake-up detector for a sensor network that uses acoustic signals to localize ground-base vehicles. The detection criterion is the degree of low-frequency periodicity in the acoustic signal, and the periodicity is computed from
Andreou, Andreas   +5 more
core   +1 more source

The spatiotemporal pattern of the human electroencephalogram at sleep onset after a period of prolonged wakefulness [PDF]

open access: yes, 2019
During the sleep onset (SO) process, the human electroencephalogram (EEG) is characterized by an orchestrated pattern of spatiotemporal changes. Sleep deprivation (SD) strongly affects both wake and sleep EEG, but a description of the topographical EEG ...
Aurora D’Atri   +8 more
core   +2 more sources

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