Results 71 to 80 of about 29,054 (216)

Uterine artery Doppler flow velocimetry parameters for predicting gestational trophoblastic neoplasia after complete hydatidiform mole, a prospective cohort study

open access: yesClinics
OBJECTIVES: Doppler ultrasonography can be used to assess neoangiogenesis, a characteristic feature of postmolar gestational trophoblastic neoplasia. However, there is limited information on whether uterine artery Doppler flow velocimetry parameters can ...
Flavia Tarabini Castellani Asmar   +5 more
doaj   +1 more source

Estimation of Normative Values of Maternal Artery Doppler Velocimetry in Second Trimester in Indian Population: A Cross-sectional Study [PDF]

open access: yesInternational Journal of Anatomy Radiology and Surgery
Introduction: Ophthalmic artery is the first branch of the internal carotid artery and provides an indirect approach to flow pattern and velocimetry information to less approachable intracranial circulation.
Narleen Kaur   +2 more
doaj   +1 more source

Three-dimensional structure of the flow inside the left ventricle of the human heart

open access: yes, 2013
The laboratory models of the human heart left ventricle developed in the last decades gave a valuable contribution to the comprehension of the role of the fluid dynamics in the cardiac function and to support the interpretation of the data obtained in ...
Cenedese, A.   +3 more
core   +1 more source

Fetal Doppler velocimetry at high altitude [PDF]

open access: yesUltrasound in Obstetrics & Gynecology, 2001
AbstractObjectivesTo determine impedance and velocity characteristics of the fetal circulation using Doppler ultrasound, at extremely high altitude (4300 m) in the Peruvian Andes compared to an ethnically similar population at sea level.MethodsThis was a cross‐sectional study of 196 women resident at high altitude (Cerro de Pasco, 4300 m above sea ...
E, Krampl   +5 more
openaire   +2 more sources

A computational model for retinal haemodynamics under gravitational and postural variations

open access: yesThe Journal of Physiology, Volume 604, Issue 7, Page 2698-2716, 1 April 2026.
Abstract figure legend The haemodynamic impact of gravitational and postural changes on the retina, and its relevance to spaceflight associated neuro‐ocular syndrome (SANS), remains incompletely characterized. This study assesses retinal haemodynamics from upright to head‐down tilt using a lumped‐parameter model that dynamically couples intraocular ...
Michele Nigro   +2 more
wiley   +1 more source

Measuring River Surface Velocity Using UAS‐Borne Doppler Radar

open access: yesWater Resources Research
Using Unoccupied Aerial Systems (UAS) equipped with optical RGB cameras and Doppler radar, surface velocity can be efficiently measured at high spatial resolution.
Zhen Zhou   +19 more
doaj   +1 more source

Uterine Artery Doppler Velocimetry of Uterine Leiomyomas in Nigerian Women [PDF]

open access: yesRevista Brasileira de Ginecologia e Obstetrícia, 2017
Objective To describe the blood flow velocities and impedance indices changes in the uterine arteries of leiomyomatous uteri using Doppler sonography.
Bukunmi Michael Idowu   +2 more
doaj   +1 more source

Rotor-Obstacle Aerodynamic Interaction in Hovering Flight: An Experimental Survey [PDF]

open access: yes, 2016
Despite the presence of a fair number of numerical and experimental works on the rotor-obstacle interaction, a systematic study of the aerodynamic phenomena involved is lacking.
Giuni, Michea   +2 more
core  

A new methodology for the quantitative visualization of coherent flow structures in alluvial channels using multibeam echo-sounding (MBES) [PDF]

open access: yes, 2010
In order to investigate the interactions between turbulence and suspended sediment transport in natural aqueous environments, we ideally require a technique that allows simultaneous measurement of fluid velocity and sediment concentration for the whole ...
Best, J L   +7 more
core   +3 more sources

Aerospace Engineering Undergraduate Laboratory Courses: A Systematic Review (1990–2025)

open access: yesComputer Applications in Engineering Education, Volume 34, Issue 2, March 2026.
ABSTRACT This review examines the evolution of undergraduate aerospace engineering (AE) laboratories from 1990 to 2025, focusing on course formats, pedagogy, technology, and assessment. Once centered on traditional demonstration‐based exercises, AE laboratories have increasingly shifted toward hands‐on, project‐based, and hybrid physical‐virtual models
Mingtai Chen
wiley   +1 more source

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