Results 1 to 10 of about 145,394 (269)

Current Measurement and Velocity Spatial Distribution of Deep Ocean Engineering Basin

한국해양공학회지, 2021
To ensure the international competitiveness of the domestic offshore plant industry, a consensus has been formed regarding the requirement for large offshore basins for performing offshore plant performance verification.
Sung-Jun Jung, Jae-Sang Jung, Yong-Guk Lee, Byeong-Won Park, Sung-Chul Hwang, In-Bo Park, Jin-Ha Kim, Il-Ryong Park   +7 more
doaj   +1 more source

Dynamic Optimization Method for Broadband ADCP Waveform with Environment Constraints

Sensors, 2021
Broadband acoustic Doppler current profiler (ADCP) is widely used in agricultural water resource explorations, such as river discharge monitoring and flood warning.
Yongshou Yang, Shiliang Fang
doaj   +1 more source

Applicability of the PIV system for velocity field measurement inside the ultrasonic flowmeter [PDF]

MATEC Web of Conferences, 2021
Ultrasonic (US) flow meters are devices for a fluid flow measurement using the ultrasonic principle. Current research project dealing with developing the ultrasonic flowmeter with an innovative channel shape. Previously the work was aimed to the topology
Novosád Jan, Pulec Jaroslav, Dančová Petra   +2 more
doaj   +1 more source

Direct Measurements of the Malvinas Current Velocity Structure

Journal of Geophysical Research: Oceans, 2021
AbstractDirect velocity measurements of the Malvinas Current (MC) were carried out on multiple occupations of five transects across the flow using a Shipborne Acoustic Current Profiler (SADCP) on the R/V Akademik Sergey Vavilov and Akademik Mstislav Keldysh.
D. I. Frey, A. R. Piola, V. A. Krechik, D. V. Fofanov, E. G. Morozov, K. P. Silvestrova, R. Yu. Tarakanov, S. V. Gladyshev   +7 more
openaire   +2 more sources

Precision and Accuracy of Pulse Propagation Velocity Measurement in Power Cables

Energies, 2023
The partial discharge (PD) measurement is an important method used in determining the condition of medium- and high-voltage cable insulation. Considering the propagation velocity of PD signals in power cables is necessary for determining the location of ...
Ivar Kiitam, Muhammad Shafiq, Maninder Choudhary, Martin Parker, Ivo Palu, Paul Taklaja   +5 more
doaj   +1 more source

In‐situ measurements of velocity structure within turbidity currents [PDF]

Geophysical Research Letters, 2004
Turbidity currents are thought to be the main mechanism to move ∼500,000 m3 of sediments annually from the head of the Monterey Submarine Canyon to the deep‐sea fan. Indirect evidence has shown frequent occurrences of such turbidity currents in the canyon, but the dynamic properties of the turbidity currents such as maximum speed, duration, and ...
Xu, J. P., Noble, M.A., Rosenfeld, Leslie K.   +2 more
openaire   +2 more sources

Virtual Metrology Filter-Based Algorithms for Estimating Constant Ocean Current Velocity

Remote Sensing, 2023
The strap-down inertial navigation system (SINS) and Doppler velocity log (DVL) integrated navigation system are widely used for autonomous underwater vehicles (AUVs). Whereas DVL works in the water tracking mode, the velocity provided by DVL is relative
Yongjiang Huang, Xixiang Liu, Qiantong Shao, Zixuan Wang   +3 more
doaj   +1 more source

Accuracy and Error Analysis of Vector Measurement of Ocean Surface Current by Multi-Aperture Along-Track Interferometric SAR

IEEE Access, 2020
The ocean surface current vector contains velocity and direction information, and its acquisition method has important research value in marine applications.
Yan Li, Jinsong Chong, Kai Sun, Xue Yang, Yawei Zhao   +4 more
doaj   +1 more source

Development of Electromagnetic Current Meter for Marine Environment

Journal of Marine Science and Engineering, 2023
Ocean current is one of the most important parameters in ocean observation, and ocean current measurement based on electromagnetic induction is becoming more and more important because of its advantages such as simple structure and high measurement ...
Shizhe Chen, Yushang Wu, Shixuan Liu, Yingdong Yang, Xiaozheng Wan, Xianglong Yang, Keke Zhang, Bo Wang, Xingkui Yan   +8 more
doaj   +1 more source

Satellite Velocity Correction Method of Ocean Current Retrieval for a Spaceborne Doppler Scatterometer

Remote Sensing, 2023
For a spaceborne pencil-beam rotating Doppler scatterometer, its precision in measuring the ocean surface motion depends on the Doppler centroid of the received signals.
Jingyu Zhang, Xiaolong Dong, Di Zhu
doaj   +1 more source