Zobrazeno 1 - 10
of 1 060
pro vyhledávání: '"Wave period"'
Autor:
James Gaudreau, Ethan Raines, Joel T. Johnson, James L. Garrison, Jeffrey D. Ouellette, Rashmi Shah
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 8020-8027 (2024)
Ocean wave periods are estimated using measurements of S-band signals-of-opportunity reflections from the sea surface. The measurements were collected on an oil platform and show a time evolving Doppler centroid frequency and spectral width due to th
Externí odkaz:
https://doaj.org/article/7c0a981581d94f51948056c8dfe689d4
Autor:
Dalila Kraiem, Ali Triki
Publikováno v:
Aqua, Vol 72, Iss 11, Pp 2126-2137 (2023)
Recent studies have proved that the utilization of polyethylene (PE) short-section or penstock is a promising water hammer control tool. However, the interplay between the magnitude attenuation and the phase offset of pressure-wave oscillations remai
Externí odkaz:
https://doaj.org/article/3754ccd5328c497b9efd390c25a96f40
Publikováno v:
Kapal, Vol 20, Iss 3, Pp 288-300 (2023)
Indonesia has abundant sources of renewable energy from ocean currents and waves, or a mixture of currents and waves at certain times to be used as an energy source for power plants. So at the Indonesian Hydrodynamics Laboratory, a study has been car
Externí odkaz:
https://doaj.org/article/adfc91e6d52445fe87105506db83fd45
Publikováno v:
Remote Sensing, Vol 16, Iss 18, p 3535 (2024)
Based on the WAVEWATCH III wave model, China’s National Marine Environmental Forecasting Center has developed an operational global ocean wave forecasting system that covers the Arctic region. In this study, in situ buoy observations and satellite
Externí odkaz:
https://doaj.org/article/137bfc46e54a4b4e8c459f991fdb4fd9
Autor:
Dita Adhelia Putri, Muhammad Hafiz Nurwahyu Aliffrananda, Sugeng Riyadi, Sutiyo Sutiyo, I Ketut Aria Pria Utama
Publikováno v:
Kapal, Vol 20, Iss 1, Pp 16-26 (2023)
Crew boat is a type of vessels used for the mobility of offshore workers and logistical supply needed for the offshore platform. Crew boat KCT-1901 is categorized as a planning boat with hard chine body. KCT-1901 requires an added power when it is sa
Externí odkaz:
https://doaj.org/article/a6c216f374d44a5bafe482a12499ae59
Publikováno v:
Metrology, Vol 3, Iss 1, Pp 82-98 (2023)
This paper presents a novel low-speed measuring method using analog sine and square waves of Hall effect speed sensors coupled with correlative digital signal processing algorithms packaged on a signal processing unit. The frequency of the initial si
Externí odkaz:
https://doaj.org/article/ecc92dda03504fdcad1e09eb900d51f7
Wave Height and Period Estimation from X-Band Marine Radar Images Using Convolutional Neural Network
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 2, p 311 (2024)
In this study, a deep learning network for extracting spatial-temporal features is proposed to estimate significant wave height (Hs) and wave period (Ts) from X-band marine radar images. Since the shore-based radar image in this study is interfered w
Externí odkaz:
https://doaj.org/article/3f96efd538094f1d98b9d88d084d76ea
Akademický článek
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Akademický článek
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Publikováno v:
International Journal of Technology, Vol 13, Iss 2, Pp 321-331 (2022)
A wave energy converter (WEC) based on a direct mechanical drive system (DMDS) exhibits limited performance when the sea state stands for a short period. This study aims to increase the efficiency of a WEC-DMDS mechanical system applied under sho
Externí odkaz:
https://doaj.org/article/074ad4c8e5804d9b9bab6aab3d4d3095