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Mostrando ítems 41-50 de 2026
Improved Functionality of Foamed WPI Solutions by Ultrasound Application
(United Scientific Group, 2016-04)
The objective of this work was to determine the effect of ultrasound on the stability of foams of whey protein isolate. It was used an ultrasonic processor Vibra Cell Sonics, model VCX at a frequency of 20 kHz and an ...
A reconfigurable arbitrary waveform generator using PWM modulation for ultrasound research
(Biomed Central LtdLondonInglaterra, 2013)
AUTOMATIC CORONARY WALL SEGMENTATION IN INTRAVASCULAR ULTRASOUND IMAGES USING BINARY MORPHOLOGICAL RECONSTRUCTION
(ELSEVIER SCIENCE INC, 2011)
Intravascular ultrasound (IVUS) image segmentation can provide more detailed vessel and plaque information, resulting in better diagnostics, evaluation and therapy planning. A novel automatic segmentation proposal is ...
Thermal decomposition and rehydration of strontium oxalate: morphological evolution
(Elsevier B.V., 2001-09-01)
Undoped and Eu3+ doped monohydrate strontium oxalate samples were precipitated under ultrasound and conventional stirring and were heated at different temperatures. All samples were characterized by X-ray powder diffraction ...
The use of ultrasound for cleaning the surface of stainless steel and nickel-titanium endodontic instruments
(Blackwell Science, 2001-12-01)
Aim the aim of this study was to evaluate the efficacy of ultrasound in cleaning the surface of stainless steel and Ni-Ti endodontic instruments.Methodology Twenty nickel-titanium instruments (10 Quantec files and 10 ...
Identification of acoustic fields in aqueous biomass solutions of banana waste pretreated by power ultrasound
(Springer, 2018-03-01)
High-intensity ultrasound is a technology used to improve the performance of processes in the chemical, pharmaceutical, biomass pretreatment, and food industries. However, few studies were described in the literature to ...
Effects of low-intensity pulsed ultrasound on wound healing in corneas of dogs following keratoplasty
(2003-10-20)
The effects of low-intensity pulsed ultrasound on wound healing were evaluated at the graft-cornea transition in dogs following lamellar keratoplasty using tunica vaginalis preserved in 98% glycerin. Twenty-one dogs were ...
Endobronchial ultrasound application for diagnosis of tracheobronchial tree invasion by esophageal cancer
(Faculdade de Medicina / USP, 2009)
INTRODUCTION: Esophageal cancer staging has been performed through bronchoscopy, computerized tomography (CT), positron emission tomography (PET), and endoscopic ultrasound (EUS). Whereas CT and PET scan provide assessments ...
Mammary gland ultrasound evaluation of jersey cattle breed
(2016-01-01)
Background: Ultrasound allows the udder evaluation of lactating cattle, through parameters such as the area of the cistern of the mammary gland and teat, and can reveal structures with different echogenicity, indicating ...
Ozonolysis combined with ultrasound as a pretreatment of sugarcane bagasse: Effect on the enzymatic saccharification and the physical and chemical characteristics of the substrate
(2016-10-01)
Sugarcane bagasse (SCB) was treated in three stages using ozone oxidation (O), washing in an alkaline medium (B) and ultrasonic irradiation (U). The impact of each pretreatment stage on the physical structure of the SCB ...