Results 31 to 40 of about 10,642 (230)

A velocidade sistólica máxima aumenta na artéria cerebral média de fetos normais da 22.a a 38.a semana de gestação.

Acta Médica Portuguesa, 2006
To assess peak systolic velocity values in middle cerebral artery (PSMCA) of normal fetuses from 22nd to 38th week of gestation.We made a prospective study of 33 healthy fetuses from 22nd to 38th to determine peak systolic velocity by Doppler velocimetry.
A Gadelha-Costa, P Spara-Gadelha, F Mauad-Filho, E B Gadelha   +3 more
doaj   +1 more source

On the determination of shocked surface velocities

AIP Advances, 2022
Laser Doppler velocimetry is commonly fielded in shock physics experiments to diagnose the times of arrival, magnitudes, and durations of shock impulses as they arrive at shock loaded surfaces.
William Tillman Buttler, Christopher Ticknor   +1 more
doaj   +1 more source

Serum IL 6 and umbilical artery Doppler indices in pre-eclamptic patients

Alexandria Journal of Medicine, 2017
Objectives: To study the changes in serum IL 6 levels in pre-eclamptic patients and to detect any correlation between these changes and changes in the umbilical artery Doppler velocimetry.
Medhat Y. Anwer, Tark A. Karkor, Sally S. El-Tawab, Akram A. Deghady, Ihab M. El Tayeb   +4 more
doaj   +1 more source

The role of clinical and laboratory tests along with uterine artery Doppler indices in the prediction of pre-eclampsia and pregnancy outcome in Egypt

Al-Azhar Assiut Medical Journal, 2020
Background and aim As the ideal test to predict pregnancy-induced hypertension and preeclampsia should be inexpensive, reproducible, easy to do early in pregnancy, and noninvasive and have high sensitivity, the aim of this study was to evaluate clinical ...
Sileem A Sileem, Mohamed M El-Barody, Ahmed Okasha, Osama Abdelazem   +3 more
doaj   +1 more source

Review of CFD modelling techniques for single‐phase and multiphase flow in static mixers

The Canadian Journal of Chemical Engineering, EarlyView.
This review synthesizes computational fluid dynamics (CFD) approaches for static mixers, linking hydrodynamics to pressure drop, particle/droplet distributions, mixing metrics, and heat‐transfer performance to guide modelling choices and design decisions. Abstract Static mixers enable compact and low‐energy intensification.
Jussan Jaeger, Sálvio Lima de Carvalho Neto, Silvio Edegar Weschenfelder, Glaucia Rodrigues Vieira de Almeida da Fonseca, Maria de Fátima Rodrigues da Cunha, Selene Maria Arruda Guelli Ulson de Souza, Evandro Balestrin, Adriano da Silva   +7 more
wiley   +1 more source

An experimental study of particle sedimentation using ultrasonic speckle velocimetry [PDF]

, 2010
Ultrasonic speckle velocimetry (USV) is a non-invasive technique that allows the measurement of fluid velocity in flow and also that of powders under sedimentation.
Delaunay, Thomas, Tordjeman, Philippe, Chinaud, Maxime   +2 more
core   +1 more source

Two-wave photon Doppler velocimetry measurements in direct impact Hopkinson pressure bar experiments

EPJ Web of Conferences, 2015
Direct impact Hopkinson pressure bar systems offer many potential advantages over split Hopkinson pressure bars, including access to higher strain rates, higher strains for equivalent striker velocity and system length, lower dispersion and faster ...
Lea Lewis J., Jardine Andrew P.
doaj   +1 more source

Middle Cerebral Artery Doppler and Cerebroplacental Ratio Predict Adverse Neurological Outcomes in Fetal Growth Restriction

Prenatal Diagnosis, EarlyView.
ABSTRACT Objective To assess the efficacy of middle cerebral artery (MCA) Doppler ultrasonography in predicting neurological and respiratory outcomes in fetuses with fetal growth restriction (FGR) and to establish a correlation between MCA Doppler and head circumference (HC). Method Retrospective cohort study examining singleton pregnancies affected by
Silvia Visentin, Ambrogio Pietro Londero, Giulia Lo Storto, Eugenio Ragazzi, Sabrina Salvadori, Eugenio Baraldi, Erich Cosmi   +6 more
wiley   +1 more source

Investigation by laser doppler velocimetry of the effects of liquid flow rates and feed positions on the flow patterns induced in a stirred tank by an axial-flow impeller [PDF]

, 2002
The (ow patterns established in a continuously-fed stirred tank, equipped with a Mixel TT axial-(ow impeller, have been investigated bylaser Doppler velocimetry, for a high and a low value of mean residence time—mixing time ratio.
Mavros, Paul, Xuereb, Catherine, Fort, Ivan, Bertrand, Joël   +3 more
core   +1 more source

Fetal Biometric Parameters in USG for Early Detection of Fetal Growth Restriction

Journal of Pharmacy and Bioallied Sciences
Background: Intrauterine growth restriction (IUGR) is a major pregnancy complication linked to adverse perinatal outcomes. Biometric parameters and Doppler velocimetry are valuable tools in diagnosing IUGR and predicting pregnancy outcomes.
Himanshy Rai, Shambhavi Soni, Amaresh K. Shukla, Mohita Pandey, Mayank P. Singh, Vishnu K. Gupta   +5 more
doaj   +1 more source