Results 11 to 20 of about 1,922,963 (250)

Pulse subtraction Doppler

open access: yesPhysics Procedia, 2010
AbstractRecent advances have demonstrated the feasibility of molecular imaging using targeted microbubbles and ultrasound. One technical challenge is to selectively detect attached bubbles from those freely flowing bubbles and surrounding tissue. Pulse Inversion Doppler is an imaging technique enabling the selective detection of both static and moving ...
Mahue, Veronique   +4 more
openaire   +5 more sources

A Review of Progress and Applications of Pulsed Doppler Wind LiDARs

open access: yesRemote Sensing, 2019
Doppler wind LiDAR (Light Detection And Ranging) makes use of the principle of optical Doppler shift between the reference and backscattered radiations to measure radial velocities at distances up to several kilometers above the ground.
Zhengliang Liu   +7 more
semanticscholar   +1 more source

Hepatic artery thrombosis after liver transplantation: Radiologic evaluation [PDF]

open access: yes, 1986
Hepatic artery thrombosis after liver transplantation is a devastating event requiring emergency retransplantation in most patients. Early clinical signs are often nonspecific.
Bowen, A   +6 more
core   +1 more source

Echocardiographic Evaluation of Cardiac Function in Infants of Mothers with Diabetes

open access: yesJournal of the Indian Academy of Echocardiography & Cardiovascular Imaging, 2023
Introduction: A large number of pregnancies are complicated by diabetes mellitus in the mother which is associated with the risk of various cardiac structural and functional complications in the neonates.
Maryam Fatima   +3 more
doaj   +1 more source

Pulsed UCN production using a Doppler shifter at J-PARC [PDF]

open access: yes, 2015
We have constructed a Doppler-shifter-type pulsed ultra-cold neutron (UCN) source at the Materials and Life Science Experiment Facility (MLF) of the Japan Proton Accelerator Research Complex (J-PARC).
Hino, M.   +10 more
core   +2 more sources

Feasibility of Doppler Ultrasound for Cortical Cerebral Blood Flow Velocity Monitoring During Major Non-cardiac Surgery of Newborns

open access: yesFrontiers in Pediatrics, 2021
Background and Aim: Newborns needing major surgical intervention are at risk of brain injury and impaired neurodevelopment later in life. Disturbance of cerebral perfusion might be an underlying factor.
Sophie A. Costerus   +8 more
doaj   +1 more source

Efficient Photoionization-Loading of Trapped Cadmium Ions with Ultrafast Pulses [PDF]

open access: yes, 2006
Atomic cadmium ions are loaded into radiofrequency ion traps by photoionization of atoms in a cadmium vapor with ultrafast laser pulses. The photoionization is driven through an intermediate atomic resonance with a frequency-quadrupled mode-locked Ti ...
B. B. Blinov   +29 more
core   +2 more sources

Squeezing turbulence statistics out of a pulsed Doppler lidar [PDF]

open access: yesAtmospheric Measurement Techniques
Accurate estimation of second-order turbulence statistics using pulsed Doppler lidar has been a challenge for a long time, mainly due to the negative influence of probe volume averaging.
M. Manami   +5 more
doaj   +1 more source

Doppler Spectrum Estimation by Ramanujan Fourier Transforms [PDF]

open access: yes, 2009
The Doppler spectrum estimation of a weather radar signal in a classic way can be made by two methods, temporal one based in the autocorrelation of the successful signals, whereas the other one uses the estimation of the power spectral density PSD by ...
Bensebti, Messaoud, Lagha, Mohand
core   +4 more sources

Echocardiographic Evaluation of Left Ventricular Functions According to the Degree of Glycemic Control in Children with Type-1 Diabetes Mellitus

open access: yesNamık Kemal Tıp Dergisi, 2020
Aim: The aim of the study was the evaluation of the effects of glycemic control on cardiac functions in children and adolescents diagnosed with Type-1 Diabetes Mellitus (DM).Materials and Methods: Children with Diabetes type-1 were divided into two ...
Erman ÇİLSAL, Yılmaz KOR
doaj   +1 more source

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