Results 81 to 90 of about 9,627,086 (290)

Experimental measurements of radar signatures of large wind turbine

open access: yesThe Journal of Engineering, 2019
This study presents preliminary results on the signature of a large offshore wind turbine collected using an active S-band radar. The intensity fluctuations of this clutter signal in the range and Doppler domain are characterised, looking at their ...
Francesco Fioranelli   +6 more
doaj   +1 more source

Surface Current Retrieval From TerraSAR-X Data Using Doppler Measurements [PDF]

open access: yes, 2010
The purpose of this paper is to investigate the estimation of surface currents directly on stripmap TerraSAR-X data, as an alternative to Along Track Interferometry.
Thomas Fritz   +7 more
core   +1 more source

Modulation of miR‐23b Wnt/β‐catenin Axis Strengthens Endothelial Barrier Properties

open access: yesAdvanced Science, EarlyView.
Early blood‐brain barrier (BBB) disruption contributes to stroke and CNS disease pathology. miR‐23b was identified as a regulator of BBB integrity in brain endothelial cells. Inhibition of miR‐23b enhanced barrier‐associated properties, promoted repair‐related signaling, and reduced BBB leakage in experimental stroke models, supporting further ...
Victor Anthony Martinez   +16 more
wiley   +1 more source

Lateral velocity measurement and error analysis

open access: yesThe Journal of Engineering, 2019
Most existing velocity measurement methods can only calculate the radial velocity by Doppler effect. Here, the authors study the method of measuring the lateral velocity.
Mengye Qiang, Yechao Bai, Xinggan Zhang
doaj   +1 more source

Single‐Cell Transcriptomic Analysis of Tumor Heterogeneity and the Microenvironment in Pseudomyxoma Peritonei

open access: yesAdvanced Science, EarlyView.
This study presents a single‐cell atlas of pseudomyxoma peritonei spanning primary and paired metastatic lesions. Distinct epithelial substates, stromal remodeling, immune exclusion, lipid metabolic reprogramming, and a candidate angiogenic network were identified in metastatic lesions.
Xi Li   +14 more
wiley   +1 more source

Energy composition of high-energy neutral beams on the COMPASS tokamak

open access: yesNukleonika, 2016
The COMPASS tokamak is equipped with two identical neutral beam injectors (NBI) for additional plasma heating. They provide a beam of deuterium atoms with a power of up to ~(2 × 300) kW.
Mitosinkova Klara   +3 more
doaj   +1 more source

Doppler sonar analysis of swallowing sounds in normal pediatric individuals Análise dos sons da deglutição pelo sonar Doppler em indivíduos normais na faixa etária pediátrica

open access: yesBrazilian Journal of Otorhinolaryngology, 2009
Among the methods for assessing swallowing sounds - videofluoroscopy modified barium study, fiberoptic swallowing endoscopy, neck auscultation through a microphone, accelerometer and, more recently, the Doppler sonar - we have chosen the latter.
Cibele Fontoura Cagliari   +3 more
doaj   +1 more source

Diagnostic accuracy of Doppler ultrasound technique of the penile arteries in correlation to selective arteriography [PDF]

open access: yes, 1988
In 63% of 265 patients with erectile dysfunction a relevant arterial inflow disturbance was found by Doppler ultrasound examination. Correlation between Doppler and arteriography in 58 patients showed an accuracy of 95% in detecting penile arteries and ...
Stief, Christian Georg   +4 more
core   +1 more source

The Mind From Within: Visceral Roots of Human Cognition

open access: yesAdvanced Science, EarlyView.
The physiological activity of visceral organs, such as the heart, the lungs, and the gut, is surprisingly linked to many sophisticated mental operations, such as remembering the past, being aware of ourselves, making choices, and forging social bonds.
Alessandro Monti   +1 more
wiley   +1 more source

Accelerated Algorithm based on Modified Z-Buffer for Numerically Simulating the Dynamic Radar Echo from Wind Turbines [PDF]

open access: yesJournal of Electromagnetic Engineering and Science
As wind farms increase in scale, the computation speed of traditional methods struggles to meet the requirements for simulating the dynamic radar echo they produce.
Bo Tang   +5 more
doaj   +1 more source

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