Results 41 to 50 of about 7,809,143 (340)

Relation of transmitral flow velocity patterns to left ventricular diastolic function: new insights from a combined hemodynamic and Doppler echocardiographic study.

open access: yesJournal of the American College of Cardiology, 1988
In an effort to determine what clinically useful information regarding left ventricular diastolic function can be inferred noninvasively with pulsed wave Doppler echocardiography, mitral flow velocity patterns and measured variables were correlated with ...
C. Appleton, L. Hatle, R. Popp
semanticscholar   +1 more source

Optical Micro-Wire Flow-Velocity Sensor

open access: yesSensors, 2021
This paper presents a short response time, all-silica, gas-flow-velocity sensor. The active section of the sensor consists of a 16 µm diameter, highly optically absorbing micro-wire, which is heated remotely by a 980 nm light source. The heated microwire
Matej Njegovec   +2 more
doaj   +1 more source

Velocity Correlations in Dense Granular Flows [PDF]

open access: yesPhysical Review Letters, 2004
Velocity fluctuations of grains flowing down a rough inclined plane are experimentally studied. The grains at the free surface exhibit fluctuating motions, which are correlated over few grains diameters. The characteristic correlation length is shown to depend on the inclination of the plane and not on the thickness of the flowing layer.
openaire   +4 more sources

Taylor bubble moving in a flowing liquid in vertical channel: transition from symmetric to asymmetric shape [PDF]

open access: yes, 2011
The velocity and shape of Taylor bubbles moving in a vertical channel in a Poiseuille liquid flow were studied for the inertial regime, characterized by large Reynolds numbers.
Fabre, Jean, Figueroa-Espinoza, Bernardo
core   +3 more sources

Non-invasive assessment for intratumoural distribution of interstitial fluid flow

open access: yesMagnetic Resonance Letters, 2023
Interstitial fluid plays a vital role in drug delivery and tumour treatment. However, few non-invasive measurement methods are available for measuring low-velocity biological fluid flow.
Jun Zhao   +3 more
doaj   +1 more source

Evolution of the flow field in decaying active regions, Transition from a moat flow to a supergranular flow

open access: yes, 2018
We investigate the evolution of the horizontal flow field around sunspots during their decay by analysing its extension and horizontal velocity around eight spots using SDO/HMI Doppler maps.
González, Nazaret Bello   +1 more
core   +1 more source

Velocity Fields in Non--Gaussian Cold Dark Matter Models [PDF]

open access: yes, 1994
We analyse the large--scale velocity field obtained by N--body simulations of cold dark matter (CDM) models with non--Gaussian primordial density fluctuations, considering models with both positive and negative primordial skewness in the density ...
Lucchin, F.   +4 more
core   +3 more sources

Scalar transport in compressible flow

open access: yes, 1996
Transport of scalar fields in compressible flow is investigated. The effective equations governing the transport at scales large compared to those of the advecting flow are derived by using multi-scale techniques.
Aschcroft   +36 more
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva   +5 more
wiley   +1 more source

Mesoscopic seepage velocity characteristics during heap leaching based on magnetic resonance imaging

open access: yes工程科学学报, 2015
Column leaching seepage processes were detected in a non-contact and non-destructive way by magnetic resonance imaging. Column leaching images were obtained when the flow was stationary and running.
YIN Sheng-hua   +4 more
doaj   +1 more source

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