Browsing by Subject "Acoustics"
Now showing items 1-20 of 51
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Acoustic resonators with integrated microfluidic channels for ultra-high Q-factor: a new paradigm for in-liquid gravimetric detection
(2023)Biosensing is a critical area of research that involves detecting and measuring biological molecules. Among the various types of biosensors, acoustic biosensors are attractive for their simplicity, robustness, and low cost, ... -
Acoustics-induced Fluid Motions
(2021)Acoustic waves, as a form of mechanical vibration, not only induces the force directly on the object, but also induces the motion of the medium that propagates throughout the system. The study of acoustofluidic mainly focuses ... -
Acoustofluidic Manipulation for Diagnosis and Drug Loading
(2021)Showing increased application in biological and medical fields, acoustofluidics is a combined technology between acoustics and microfluidics. The core function of acoustofluidics is a label-free and contact-free manipulation ... -
Adaptable Design Improvements For Electromagnetic Shock Wave Lithotripters And Techniques For Controlling Cavitation
(2012)In this dissertation work, the aim was to garner better mechanistic understanding of how shock wave lithotripsy (SWL) breaks stones in order to guide design improvements to a modern electromagnetic (EM) shock wave lithotripter. ... -
Adaptive Discontinuous Galerkin Methods Applied to Multiscale & Multiphysics Problems towards Large-scale Modeling & Joint Imaging
(2019)Advanced numerical algorithms should be amenable to the scalability in the increasingly powerful supercomputer architectures, the adaptivity in the intricately multi-scale engineering problems, the efficiency in the extremely ... -
An Analysis of the Potential Acoustic Effects of Cape Wind's Offshore Wind Farm on Marine Mammal Populations
(2010-04-29)Offshore wind farms are an appealing form of renewable energy that are common in Europe but have yet been developed fully in the United States. The Cape Wind project in Massachusetts has proposed the construction of 130 ... -
Analytical Models for the Structural-Acoustic Response of Elastic Barriers Subject to Acoustic Forcing
(2019)Analytical models are developed for the structural-acoustic response of flexible panels to obliquely incident, planar harmonic acoustic waves. These models provide a detailed understanding of the complex effects of structural ... -
APPLICATION OF ACOUSTIC METAMATERIALS IN AUDIO SYSTEMS
(2023)Audio systems have become an integral part of our daily lives, transforming the way we hear sound in a myriad of applications, including TV, cinema, laptops, mobile phones, and even AR/VR sets. However, although there have ... -
Automatic word count estimation from daylong child-centered recordings in various language environments using language-independent syllabification of speech
(Speech Communication, 2019-10-01)© 2019 The Authors Automatic word count estimation (WCE) from audio recordings can be used to quantify the amount of verbal communication in a recording environment. One key application of WCE is to measure language input ... -
Beamforming of Ultrasound Signals from 1-D and 2-D Arrays under Challenging Imaging Conditions
(2015)Beamforming of ultrasound signals in the presence of clutter, or partial aperture blockage by an acoustic obstacle can lead to reduced visibility of the structures of interest and diminished diagnostic value of the resulting ... -
Boosting the Sensing Granularity of Acoustic Signals by Exploiting Hardware Non-linearit
(2023)Acoustic sensing is a new sensing modality that senses the contexts of human targets and our surroundings using acoustic signals. It becomes a hot topic in both academia and industry owing to its finer sensing granularity ... -
Coherent flow power Doppler imaging
(2017)Ultrasonic flow detection is a widely used technique to detect vessel, measure blood flow velocities, and monitor perfusion. Conventional techniques include color Doppler imaging and power Doppler (PD) imaging. These methods ... -
Design and Experimental Applications of Acoustic Metamaterials
(2013)Acoustic metamaterials are engineered materials that were extensively investigated over the last years mainly because they promise properties otherwise hard or impossible to find in nature. Consequently, they open the door ... -
Detection and Classification of Whale Acoustic Signals
(2016)This dissertation focuses on two vital challenges in relation to whale acoustic signals: detection and classification.In detection, we evaluated the influence of the uncertain ocean environment on the spectrogram-based detector, ... -
Differences in mismatch responses to vowels and musical intervals: MEG evidence.
(PLoS One, 2013)We investigated the electrophysiological response to matched two-formant vowels and two-note musical intervals, with the goal of examining whether music is processed differently from language in early cortical responses. ... -
Digital Acoustofluidics Based Contactless and Programmable Liquid Handling
(2020)Handling of fluids is essential for a majority of applications involving liquid phase reactions in chemistry, biology, and biomedicine. In contrast to manual pipetting in conventional small workshops, automated liquid handling ... -
Effect of lithotripter focal width on stone comminution in shock wave lithotripsy.
(J Acoust Soc Am, 2010-04)Using a reflector insert, the original HM-3 lithotripter field at 20 kV was altered significantly with the peak positive pressure (p(+)) in the focal plane increased from 49 to 87 MPa while the -6 dB focal width decreased ... -
Efficient Spatial Coherence Estimation for Improved Endocardial Border Visualization in Real-Time
(2017)Coronary heart disease contributed to approximately one in four deaths in the United States in 2014, and is caused by a restriction of blood flow to myocardial tissue. Stress echocardiography is a clinical technique used ... -
Engineering micro-vortex streaming via acoustofluidics
(2022)Acoustofluidic technologies, the integration of acoustics into microfluidics, offer rich possibilities for particle manipulation in life sciences. One promising aspect of these technologies is acoustic micro-vortex steaming, ... -
Exploiting the Interplay of Acoustic Waves and Fluid Motion for Particle Manipulation
(2021)Acoustofluidics is an emerging research field that combines both acoustics and fluid dynamics. With acoustic tweezers technique being developed for years, it is featured for its contactless, noninvasive, and biocompatibility ...
