Results 31 to 40 of about 29,054 (216)

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

Optical frequency standards for gravitational wave detection using satellite Doppler velocimetry

New Journal of Physics, 2015
Gravitational waves (GWs) imprint apparent Doppler shifts on the frequency of photons propagating between an emitter and detector of light. This forms the basis of a method to detect GWs using Doppler velocimetry between pairs of satellites. Operating in
Amar Vutha
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

Heterodyne Doppler global velocimetry [PDF]

Experiments in Fluids, 2009
ISSN:0723 ...
Meier, Alexander, Roesgen, Thomas
openaire   +3 more sources

Influence of Wall Deformation Structure on the Liquid Film Flow Behavior Under Turbulent Conditions

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To explore the influence of typical wall deformation structure in the scrubbing‐cooling tube on the liquid film, this paper studied the liquid film flow behavior on the riblet walls with representative riblet radii and compared them with the flat wall. Under different liquid film Reynolds numbers (Rel = 8.3 × 103 ~ 3.14 × 104), the liquid film
Qian Liu, Yifei Wang, Jie Zeng, Zongren Pan, Dawei Feng, Guangsuo Yu   +5 more
wiley   +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

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

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

Prevention of stillbirths associated with umbilical cord abnormalities: A clinico‐pathological overview

International Journal of Gynecology &Obstetrics, EarlyView.
Abstract Stillbirths affect millions of pregnancies every year worldwide, and obstruction of the umbilical cord blood flow is one of the main causes of fetal death. This review provides a clinico‐pathological overview of cord abnormalities potentially associated with antepartum stillbirth, describing the mechanism determining the death and addressing ...
Laura Avagliano, Chiara Parodi, Valentina Massa, Gaetano Bulfamante   +3 more
wiley   +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