Results 21 to 30 of about 289,177 (314)

High Dynamic Velocity Range Particle Image Velocimetry Using Multiple Pulse Separation Imaging

Sensors, 2010
The dynamic velocity range of particle image velocimetry (PIV) is determined by the maximum and minimum resolvable particle displacement. Various techniques have extended the dynamic range, however flows with a wide velocity range (e.g., impinging jets ...
Tadhg S. O’Donovan, Tim Persoons
doaj   +1 more source

Enhancement of Heading Accuracy for GPS/INS by Employing Average Velocity in Low Dynamic Situations

IEEE Access, 2020
In this paper, we proposed an algorithm that improves the heading accuracy of the global positioning system (GPS)/inertial navigation system (INS) integrated system used in automobiles by manipulating INS velocity and GPS velocity measurements.
Min Jun Choi, Yong Hun Kim, Eung Ju Kim, Jin Woo Song   +3 more
doaj   +1 more source

Penetration Characteristics of Air, Carbon Dioxide and Helium Transverse Sonic Jets in Mach 5 Cross Flow

Sensors, 2014
An experimental investigation of sonic air, CO2 and Helium transverse jets in Mach 5 cross flow was carried out over a flat plate. The jet to freestream momentum flux ratio, J, was kept the same for all gases.
Erinc Erdem, Konstantinos Kontis, Selvaraj Saravanan   +2 more
doaj   +1 more source

Wave Measurements Using GPS Velocity Signals

Sensors, 2011
This study presents the idea of using GPS-output velocity signals to obtain wave measurement data. The application of the transformation from a velocity spectrum to a displacement spectrum in conjunction with the directional wave spectral theory are the ...
Chia Chuen Kao, Dong-Jiing Doong, Beng-Chun Lee   +2 more
doaj   +1 more source

CEPHEID PULSATIONS FROM RADIAL VELOCITY MEASUREMENTS

Odessa Astronomical Publications, 2017
We discuss the results of our many-year program of Cepheid radial velocities concerning the Hertzsprung sequence in radial-velocity curves, double-mode Cepheids, the period-radius relation, binary Cepheids.
N. A. Gorynya, N. N. Samus
doaj   +1 more source

Improved Ice Velocity Measurements with Sentinel-1 TOPS Interferometry

Remote Sensing, 2020
In recent years, the Sentinel-1 satellites have provided a data archive of unprecedented volume, delivering C-band Synthetic Aperture Radar (SAR) acquisitions over most of the polar ice sheets with a repeat-pass period of 6–12 days using Interferometric ...
Jonas Kvist Andersen, Anders Kusk, John Peter Merryman Boncori, Christine Schøtt Hvidberg, Aslak Grinsted   +4 more
doaj   +1 more source

Intraoperative Collection of Ascitic Fluid With Intra‐ or Postoperative Reinfusion in Ovarian Cancer: Safety and Feasibility of a Roller Pumping Method

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Patients with ovarian cancer often present with massive ascites, leading to significant protein loss during surgical procedures. Although cell‐free concentrated ascites reinfusion therapy (CART) is used in palliative settings to mitigate protein loss, its application in intraoperative settings remains unexplored.
Yutaka Yoneoka, Tsukuru Amano, Akimasa Takahashi, Mari Deguchi, Hiroyuki Yamanaka, Yuji Tanaka, Shunichiro Tsuji, Takashi Murakami   +7 more
wiley   +1 more source

Continuous Wave Measurements Collected in Intermediate Depth throughout the North Sea Storm Season during the RealDune/REFLEX Experiments

Data
High-resolution wave measurements at intermediate water depth are required to improve coastal impact modeling. Specifically, such data sets are desired to calibrate and validate models, and broaden the insight on the boundary conditions that force models.
Jantien Rutten, Marion Tissier, Paul van Wiechen, Xinyi Zhang, Sierd de Vries, Ad Reniers, Jan-Willem Mol   +6 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Particle Image Velocimetry Analysis of Bedload Sampling in a Sand-Bed River

Fluids
Both the excess and alteration of bed sediments in river systems can cause socioeconomic and environmental damage; thus, the quantification of bedload transport is an important tool to assess the health of rivers and help in decision-making imposed by ...
Rodrigo B. Pereira, Glauber A. Carvalho, Tobias Bleninger, Pedro A. P. Zamboni, Liege Wosiacki, Fábio V. Gonçalves, Johannes Gérson Janzen   +6 more
doaj   +1 more source