Correspondence: Lead-free intravascular ultrasound transducer using BZT-50BCT ceramics
نویسندگان
چکیده
منابع مشابه
Electrically induced strain and polarization fatigue in lead-free ceramics
Piezoelectric ceramics have traditionally been used in commercial applications such as actuators and sensors. By far the most popular piezoceramics currently in use are Pb(Zr,Ti)O3-based (PZT) ceramics. PZT ceramics are able to produce large strain and polarization with the application of an electric field, and this is due to the Morphotropic phase boundary (MPB). A MPB is associated with the b...
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The potassium sodium niobate, K0.5Na0.5NbO₃, solid solution (KNN) is considered as one of the most promising, environment-friendly, lead-free candidates to replace highly efficient, lead-based piezoelectrics. Since the first reports of KNN, it has been recognized that obtaining phase-pure materials with a high density and a uniform, fine-grained microstructure is a major challenge. For this rea...
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This paper presents a method for accurate location of the vessel borders based on boosting of classifiers and feature selection. Intravascular Ultrasound Images (IVUS) are an excellent tool for direct visualization of vascular pathologies and evaluation of the lumen and plaque in coronary arteries. Nowadays, the most common methods to separate the tissue from the lumen are based on gray levels ...
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Background. Atherosclerotic plaque fracture and dissection of the arterial wall are frequent concomitants of the balloon angioplasty process. The composition and morphology of plaque within the vessel may be critical in determining the extent of plaque fracture and dissection during balloon angioplasty. To examine this potential association in the clinical setting, we studied patients with intr...
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T he increasing incidence of metabolic risk factors in the modern world makes it reasonable to predict that atheromatous cardiovascular disease will become the primary cause of death worldwide by 2020. An understanding of the factors that influence the natural history of atherosclerosis and its complications is essential for the future development of strategies for prevention and therapeutic in...
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ژورنال
عنوان ژورنال: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
سال: 2013
ISSN: 0885-3010,1525-8955
DOI: 10.1109/tuffc.2013.2692