Results 121 to 130 of about 132,662 (256)

Optimal velocity estimation model based on non-differential Doppler observations from BDS-3 satellites

Dianxin kexue, 2021
An optimized velocimetric model based on non-differential Doppler observations from BDS-3 satellites with high accuracy and low model complexity was proposed to address insufficient accuracy and low efficiency of velocity estimation method.The ...
Zejie WANG, Qianxin WANG, Tianwen SHANG
doaj   +2 more sources

Stereo Thermal Marking Velocimetry

Frontiers in Mechanical Engineering, 2018
This paper presents a novel approach to measuring and mapping shape and motion of the water surface. The approach combines and borrows from existing techniques, such as stereo imaging shape recognition and tracking, infrared (IR) laser marking and ...
Ivan Savelyev, Julian Fuchs
doaj   +1 more source

The Performance of Selective Screening Ultrasound to Detect the Small‐for‐Gestational‐Age Foetus: A Prospective Cohort Study Nested Within the DESiGN Randomised Control Trial

BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Objective Evidence on the performance of foetal growth ultrasound parameters to detect the Small‐for‐Gestational‐Age (SGA) foetus for a selective cohort is limited. We report the performance of estimated foetal weight under the 10th percentile (EFW < 10th) at the last selective screening ultrasound to detect SGA based on gestational age of ...
Charles Arcus, James Elhindi, Chivon Winsloe, Andrew Copas, Sophie Relph, Annette Briley, Kirstie Coxon, Mark Johnson, Asma Khalil, Deborah A. Lawlor, Christoph Lees, Neil Marlow, Louise Page, Andrew Shennan, Jane Sandall, Tanya Nippita, Matias C. Vieira, Dharmintra Pasupathy   +17 more
wiley   +1 more source

3D Particle Tracking Velocimetry Method: Advances and Error Analysis [PDF]

, 2005
A full three-dimensional particle tracking system was developed and tested. By using three separate CCDs placed at the vertices of an equilateral triangle, the threedimensional location of particles can be determined.
Dabiri, D., Hornung, H. G., Mouton, C. A., Ponchaut, N. F.   +3 more
core  

Zebrafish swimming in the flow: a particle image velocimetry study

PeerJ, 2017
Zebrafish is emerging as a species of choice for the study of a number of biomechanics problems, including balance development, schooling, and neuromuscular transmission.
Violet Mwaffo, Peng Zhang, Sebastián Romero Cruz, M. Porfiri   +3 more
semanticscholar   +1 more source

Standardization of In Vitro Evaluation of Extracorporeal Life Support (ECLS) Devices for Research and Development

Artificial Organs, EarlyView.
ABSTRACT Extracorporeal life support (ECLS) technology has witnessed remarkable advancements during the last decades. However, further research and development of devices are required to increase, for example, performance‐efficiency, hemocompatibility, and long‐term stability.
Jutta Arens, Mirko Belliato, Lars Mikael Broman, Johanna C. Clauser, Dirk W. Donker, Roberto Lorusso, Maximilian Malfertheiner, Sasa Rajsic, Justyna Swol, Leen Vercaemst, Lisa Prahl Wittberg, on behalf of the EACTS Innovation Committee, Section CPB, ECLS & MCS, the EuroELSO Innovation Group, Jutta Arens, Mirko Belliato, Lars Mikael Broman, Johanna C. Clauser, Matteo Di Nardo, Dirk Donker, Lorenzo Grazioli, Johannes Heinze, Roberto Lorusso, Maximilian Malfertheiner, Matthias Menne, Sasa Rajsic, Lena Schlotterhose, Niklas Steuer, Justyna Swol, Leen Vercaemst, Jutta Arens. Section Members, Lars Mikael Broman, Johanna C. Clauser, Renard Haumann, Michael Hübler, David Kalfa, Timur Lesbekov, Lisa Prahl Wittberg, Thomas Schlöglhofer, Zuzana Tucanova, André Vincentelli   +41 more
wiley   +1 more source

Upconversion Photonic Doppler Velocimetry Based on Stimulated Brillouin Scattering

Photonics
Optical up-conversion photonic Doppler velocimetry (PDV) based on stimulated Brillouin Scattering (SBS) with an all-fiber link structure is proposed in this article. Because SBS limits the laser power transmitted by a fiber over long distances, the probe
Long Chen, Cangli Liu, Heli Ma, Longhuang Tang, Xing Jia, Tianjiong Tao, Shenggang Liu, Yongchao Chen, Xiang Wang, Jian Wu, Chengjun Li, Jidong Weng   +11 more
doaj   +1 more source

PLGA‐particle‐based vaccine induces SARS‐CoV‐2‐specific antibody and T‐cell responses

British Journal of Pharmacology, EarlyView.
A novel coronavirus disease 2019 (COVID‐19) vaccine encapsulating recombinant severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) spike receptor binding domain (RBD) with the double stranded RNA (dsRNA) analogue Riboxxim induces robust systemic and respiratory T‐ and B‐cell responses in mice.
Dennis Horvath, Katharina Inholz, Dennis Mink, Alicia Madel, Julia Koerner, Reinhold Horlacher, Michael Basler   +6 more
wiley   +1 more source

Radial Velocities as an Exoplanet Discovery Method

, 2017
The precise radial velocity technique is a cornerstone of exoplanetary astronomy. Astronomers measure Doppler shifts in the star's spectral features, which track the line-of/sight gravitational accelerations of a star caused by the planets orbiting it ...
B Campbell, C Chubak, D Queloz, D Queloz, DA Fischer, DW Latham, FA Pepe, GW Marcy, H Kjeldsen, I Boisse, JF Kasting, JL Bean, JT Wright, M Mayor, RP Butler, RP Butler, WJ Borucki, X Dumusque   +17 more
core   +1 more source

Ultrasound Imaging Velocimetry: a review

Experiments in Fluids, 2016
Whole-field velocity measurement techniques based on ultrasound imaging (a.k.a. ‘ultrasound imaging velocimetry’ or ‘echo-PIV’) have received significant attention from the fluid mechanics community in the last decade, in particular because of their ...
C. Poelma
semanticscholar   +1 more source