Ultrasonic characterization of the pulmonary venous wall: echographic and histological correlation [PDF]
, 2002 Background: Pulmonary vein isolation with radiofrequency catheter ablation techniques is used to prevent recurrences of human atrial fibrillation. Visualization of the architecture at the venoatrial junction could be crucial for these ablative techniques.
Anderson, R.H. +7 more
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Radial artery lumen diameter and intima thickness in patients with abdominal aortic aneurysm
JVS - Vascular Science, 2022 Objective: Abdominal aortic aneurysm (AAA) is associated with dilatation of central elastic arteries, while it is uncertain whether peripheral muscular arteries are affected. The aim of this study was to investigate radial artery diastolic lumen diameter
Kristian Shlimon, MD +4 more
doaj +1 more source
, 2020 Colloidal gels, where nanoscale particles aggregate into an elastic yet fragile network, are at the heart of materials that combine specific optical, electrical and mechanical properties. Tailoring the viscoelastic features of colloidal gels in real-time
Ahouré, L. Christian +9 more
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The measurement of lubricant-film thickness using ultrasound [PDF]
, 2003 Ultrasound is reflected from a liquid layer between two solid bodies. This reflection depends on the ultrasonic frequency, the acoustic properties of the liquid and solid, and the layer thickness.
Astridge D. G. +6 more
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Ultrasonic resonance-based inspection of ultra-thin nickel sheets bonded to silicone
Materials Research Express, 2023 In the field of non-destructive testing (NDT), The detection of bonding defects between ultra-thin metal and silica gel is a difficult problem. In this study, In this study, ultrasonic resonance method was used to evaluate the bonding strength of ultra ...
Huaishu Hou +4 more
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The impact of vaporized nanoemulsions on ultrasound-mediated ablation [PDF]
, 2013 BACKGROUND: The clinical feasibility of using high-intensity focused ultrasound (HIFU) for ablation of solid tumors is limited by the high acoustic pressures and long treatment times required.
Kopechek, Jonathan A. +2 more
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The effect of ultrasound pretreatment on some selected physicochemical properties of black cumin (Nigella Sativa) [PDF]
, 2018 Background In the present study, the effects of ultrasound pretreatment parameters including irradiation time and power on the quantity of the extracted phenolic compounds quantity as well as on some selected physicochemical properties ...
A Jiménez +42 more
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A review of the role of ultrasound biomicroscopy in glaucoma associated with rare diseases of the anterior segment [PDF]
, 2016 Ultrasound biomicroscopy is a non-invasive imaging technique, which allows high-resolution evaluation of the anatomical features of the anterior segment of the eye regardless of optical media transparency.
Abdolrahimzadeh, B +5 more
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Acoustic collimation based on an ultra-thin metasurface
Applied Physics Express, 2023 How to modulate acoustic waves at small scales has been an area of intense investigation. In this paper, an artificial ultra-thin structure with a series of zigzag-shaped grooves located in the center and with bilateral symmetry is designed to realize ...
Tian Rui, Zhou Hao, Hu Jie
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Separation of Overlapping Linear Frequency Modulated (LFM) Signals Using the Fractional Fourier Transform [PDF]
, 2010 Linear frequency modulated (LFM) excitation combined with pulse compression provides an increase in SNR at the receiver. LFM signals are of longer duration than pulsed signals of the same bandwidth; consequently, in many practical situations, maintaining
Cowell, DMJ, Freear, S
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