Essays about: "Ultrasonic Wave"
Showing result 1 - 5 of 19 essays containing the words Ultrasonic Wave.
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1. Quality Control in Aluminium Profiles : Non-destructive Methods using Non-linear Ultrasonic
University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknikAbstract : When aluminium profiles are manufactured, defects may arise, especially when theprofiles are manufactured through extrusion. During the extrusion process, thesedefects occur on parts of the extruded material because of contaminates that needto be found. READ MORE
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2. Acoustic Droplet Vaporization : An Assessment of How Ultrasound Wave Parameters Influence the Vaporization Efficiency
University essay from KTH/Medicinteknik och hälsosystemAbstract : Acoustic droplet vaporization (ADV) is a process in which a phase shift of a liquified droplet into a gaseous microbubble, is triggered using an ultrasonic wave. In contrast to utilizing conventional contrast agents in ultrasound, the phase change contrast agents used in ADV can extravasate into tumor tissue, and they offer a greater circulatory lifespan, thereby increasing the potential applications in which they can be utilized. READ MORE
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3. Simulation and Analysis of Ultrasonic Wave Propagation in Pre-stressed Screws
University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknikAbstract : The use of ultrasound to measure preload in screws and bolts has been studied quite frequently the last decades. The technique is based on establishing a relationship between preload and change in time of flight (TOF) for an ultrasonic pulse propagating back and forth through a screw. READ MORE
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4. Acoustic Droplet Vaporization of Perfluorocarbon Filled Microdroplets
University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)Abstract : The use of peruorocarbon lled droplets for use as Phase Changing Contrast Agents (PCCAs) is a promosing eld. These capsules also have potential to be used for mediated drug delivery. The phase change, which has given the capsules their name, is the process when the capsule transforms from a droplet into a bubble. READ MORE
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5. Optical Fiber sensing of acoustic waves using overlapping FBGs
University essay from Mittuniversitetet/Institutionen för elektronikkonstruktionAbstract : The objective of this thesis was to investigate if an optical fiber sensing method with the use of two overlapping fiber Bragg gratings to measure Lamb wave $S_0$ modes in a steel plate, and how it would compare to traditional PZT transducers. A solution was proposed where the use of an optical fiber sensing system was built and took advantage of the strain dependence of a fiber Bragg grating mounted to a steel plate. READ MORE