Results 101 to 110 of about 84,280 (228)

[Doppler velocimetry].

Archivio italiano di urologia, andrologia : organo ufficiale [di] Societa italiana di ecografia urologica e nefrologica, 1994
After a brief historical introduction, the Authors describe the methodology of the continuous wave basic and dynamic Doppler examination of the penile arteries as well as the main normal and pathologic patterns. Some special tensiometric tests are reported. Advantages and limits of the afore mentioned examinations are discussed.
S, Annoscia, S, Treffiletti, C, Boccafoschi   +2 more
openaire   +1 more source

Optical Velocimetry

, 2004
This work considers current potential uses of laser Doppler velocimetry. A discussion of other optical velocimetry techniques is presented and compared with their practical application to modern shock physics diagnostics, such as VISAR.
Buttler, W. T., Lamoreaux, S. K., Omenetto, F. G., Torgerson, J. R.   +3 more
openaire   +2 more sources

Experimental Factors and Techniques for Pool Boiling Heat Transfer Enhancement: A Critical Review

Heat Transfer, Volume 55, Issue 4, Page 2201-2232, June 2026.
ABSTRACT This review presents a comprehensive assessment of active strategies for enhancing pool boiling heat transfer, with a focus on techniques that do not rely solely on the boiling surface modification. It examines a broad range of methodologies including fluid additives, external fields, mechanical interventions, and thermal‐geometric tuning that
José E. Pereira, R. R. Souza, A. S. Moita   +2 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

Dispersion phenomena in microchannels: Transition from Taylor-Aris to convection-dominated regime [PDF]

, 2009
This paper was presented at the 2nd Micro and Nano Flows Conference (MNF2009), which was held at Brunel University, West London, UK. The conference was organised by Brunel University and supported by the Institution of Mechanical Engineers, IPEM, the ...
2nd Micro and Nano Flows Conference (MNF2009), Adrover, A, Cerbelli, S, Garofalo, F, Giona, M   +4 more
core  

Evaluation of the HALP Score in the Distinction Between Fetal Growth Restriction and Small for Gestational Age

Reproductive, Female and Child Health, Volume 5, Issue 2, June 2026.
ABSTRACT Objective To assess whether the hemoglobin–albumin–lymphocyte–platelet (HALP) score distinguishes fetal growth restriction (FGR) from small for gestational age (SGA) and its association with composite adverse perinatal outcome (CAPO). Method This retrospective study included 444 singleton pregnancies (214 FGR; 230 SGA) at a tertiary center ...
Murat İbrahim Toplu, Tuvana Türkay Tüdeş, Miraç Özalp, Erhan Aktürk, Simten Genç, Yağmur Özkan, Veli Mihmanlı   +6 more
wiley   +1 more source

Wind Tunnel Assessment of Dynamic Induction Control Under Varying Inflow Wind Directions

Wind Energy, Volume 29, Issue 6, June 2026.
ABSTRACT Dynamic induction control (DIC), also known as pulse control, is a wake‐mixing strategy intended to improve wind farm efficiency by mitigating wake‐induced power losses. It typically employs harmonic collective blade pitching to excite wake instabilities, forming coherent pulsing structures that enhance turbulent mixing and accelerate wake ...
Manuel Alejandro Zúñiga Inestroza, Paul Hulsman, Martin Kühn, Vlaho Petrović   +3 more
wiley   +1 more source

Analysis of turbulence and vortex structures by flow mapping [PDF]

, 1997
The technique of Particle Image Velocimetry (PIV) flow mapping is reviewed and comparisons made with Laser Doppler Anemometry (LDA). Results are presented showing the application of PlV to the determination of coherent structures in grid-generated ...
Damm, C.E., Greated, C.A., Whale, J.
core   +1 more source

Multiscale Coupling of Boundary Layer Flow Turbulence and Sand Streamer Dynamics

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Wind‐driven sand transport at the Earth's surface exhibits pronounced spatiotemporal variability, forming elongated sand streamers that critically control sand flux. Despite their importance, the detailed fundamental mechanisms governing streamer formation remain elusive.
Mengdi Yan, Yuanwei Lin, Yang Zhang, Andreas C. W. Baas   +3 more
wiley   +1 more source

Particle Imaging Velocimetry Gyroscope

Sensors, 2019
Inertial measurement units (IMUs) are typically classified as per the performance of the gyroscopes within each system. Consequently, it is critical for a system to have a low bias instability to have better performance.
Ahmed A. Youssef, Naser El-Sheimy
doaj   +1 more source