Results 11 to 20 of about 20,133 (264)
South African Journal of Physiotherapy, 1955 No abstracts available.
Ronald Robins-Browne
openaire +5 more sources
Nonlinear modal evolution of microbubbles confined by rigid capillary constraint. [PDF]
Ultrason SonochemThe nonlinear modal evolution of confined bubbles was investigated by applying modulated acoustic pressure in capillaries. Within a modulation envelope of the pressure, the bubble undergoes a morphological evolution cycle, including spherical oscillation,
Li X +10 more
europepmc +2 more sources
International Journal of Hypertension, 2022 Objective. The aim of this study was to investigate the changes of syndecan-4 (SDC-4) during the hypertensive period in two kidney-two clip (2K2C) hypertension rats and compare them to brain natriuretic peptide (BNP) and the echocardiographic parameters ...
Wenyue Dai +6 more
doaj +1 more source
Quantitative Residual Stress Analysis in Steel Structures Using EMAT Nonlinear Acoustics. [PDF]
Sensors (Basel)Residual stress plays a critical role in the durability and structural integrity of steel rolls and bars. Proper analysis helps prevent defects like warping or cracking, ensuring the steel meets quality standards and performs reliably in critical ...
Balasubramaniam K +2 more
europepmc +2 more sources
Cavitation bubble structures below a soft boundary in an ultrasonic field
Ultrasonics Sonochemistry, 2023 We studied the layer structure of bubbles just below water/air and water/EPE (Expand aple poly ephylene) interfaces using high-speed photography.
Fan Li +9 more
doaj +1 more source
Contrast-enhanced ultrasonography for differential diagnosis of adnexal masses
Frontiers in Oncology, 2022 BackgroundQuantitative contrast-enhanced ultrasonography parameters are affected by various factors. We evaluated corrected quantitative contrast enhanced ultrasonography in differentiating benign adnexal tumors from malignant tumors.MethodsPatients with
Weihui Shentu +11 more
doaj +1 more source
, 2021 AbstractUltrasonic inspection is a well recognized technique for non-destructive testing of aircraft components. It provides both local highly sensitive inspection in the vicinity of the sensor and long-range structural assessment by means of guided waves.
Samaitis, Vykintas +3 more
openaire +2 more sources
International Journal of Hyperthermia, 2020 Purpose Our purpose is to assess the efficacy and safety of percutaneous US-guided microwave ablation (MWA) for cervical metastatic lymph nodes from papillary thyroid carcinomas (PTC). Methods In total, 37 patients with 98 cervical metastatic lymph nodes
Zhi-Yu Han +6 more
doaj +1 more source
Interactions of bubbles in acoustic Lichtenberg figure
Ultrasonics Sonochemistry, 2022 The evolution of acoustic Lichtenberg figure (ALF) in ultrasound fields is studied using high-speed photography. It is observed that bubbles travel along the branch to the aggregation region of an ALF, promoting the possibility of large bubble or small ...
Fan Li +7 more
doaj +1 more source
Radial oscillation and translational motion of a gas bubble in a micro-cavity
Ultrasonics Sonochemistry, 2022 According to classical nucleation theory, a gas nucleus can grow into a cavitation bubble when the ambient pressure is negative. Here, the growth process of a gas nucleus in a micro-cavity was simplified to two “events”, and the full confinement effect ...
Xianmei Zhang +8 more
doaj +1 more source