Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"bone conduction"”.
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A Factorial Study of Bone Conduction Thresholds
Made available in DSpace on 2014-12-05T22:51:26Z (GMT). No. of bitstreams: 1 6104313.pdf: 3853996 bytes, checksum: 36f424a8afbbc11fd613a499bf3b1fa3 (MD5) Previous issue date: 1961
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Evidence of inner-ear mechanisms in bone conduction in chinchillas
… via the outer ear and middle ear, so-called air conduction (AC), the mechanisms by which vibrations of the head and body, so-called bone conduction (BC), produce an auditory response are not well understood. It is clear that the inner ear is the sensory site of auditory stimulation by bone …
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Development of image-based surgical planning software for bone-conduction implants
The BONEBRIDGE bone-conduction device is used to treat conductive and mixed hearing losses. The size of its floating mass transducer (FMT) can preclude implantation in certain anatomies, necessitating comprehensive surgical planning. Current techniques are time consuming and difficult to transfer …
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Role of middle-ear inertial component of bone conduction in chinchilla
Bone conduction describes the mechanisms that produce a hearing sensation when the skull bones are subjected to vibration. Multiple components and pathways have been suggested to contribute to total bone-conducted sound. They include outer-ear cartilaginous wall compression, middle-ear inertia, …
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Gender Differences in Auditory Perception of Pure Tone Frequencies and Speech Intelligibility via Bone Conduction Transducers
… conducted to see if gender differences exist in bone conduction hearing processes. The first experiment was a pure tone study where hearing thresholds for six pure tone frequencies and four bone conduction skull locations were measured in 15 male and 15 female participants to determine if gender …
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Computer assisted audiometric evaluation system
… with amplifiers for a. set of headphones .and bone conduction transducer, patient and audiologist microphone amplifiers and a hand-held infra-red remote-control unit. A voice-operated gain-adjusting device on the audiologist's microphone eliminates the need for a sound pressure level meter …
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Human-machine cognitive coalescence through an internal duplex interface
… information and sensory input aurally through bone conduction. This enables a discreet, closed-loop interface with a computing device, and thus providing a seamless form of cognitive augmentation. The goal of the thesis is to describe the architecture, design, implementation and operation of …
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Investing the effects of body-coupled ultrasound on the auditory system for a novel hearing aid
… (USP) attribute this perceptual effect to a bone conduction pathway, even though further studies in animal subjects have demonstrated that the fluids in the cochlea are a central component in the activation of the auditory system. Here, we present research in which we stimulated guinea pigs …
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HearThere : infrastructure for ubiquitous augmented-reality audio
… as the user moves throughout the space. Using bone-conduction headphones that don't occlude the ears along with this head tracking will enable true auditory augmented reality, where real and virtual sounds can be seamlessly mixed.
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Non-Invasive Intracranial Pressure Method and Monitor
… in degree to that obtained conventionally by bone conduction on the mastoid or forehead. The literature is suggestive that there is no positive correlation between IOP and ICP in terms of pressure, but there is a correlation when acoustical response is measured. This supports the possibility …
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Modelling Hearing Impairment After Ossicular Manipulation and Reducing This Injury
… potentials, and most currently available bone conduction (BC) transducers have poor output at the frequencies of most interest. Our aims were to develop a high frequency BC animal model of middle ear surgery, then use this model to investigate mechanisms of cochlear injury and whether this …
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Sensor(y) Landscapes : technologies for new perceptual sensibilities
… situated perceptions of data. I developed a bone-conduction headphone device, called HearThere, that renders a live soundscape from distributed microphones and sensors, fully merged with the user's natural hearing. HearThere combines its wearer's inferred listening state with classification …
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Investigation of physical and psychophysical methods for the attenuation measurement of circumaural hearing protectors with implication for field use
… be due in part to the occlusion effect and the bone conduction of sound. In general, however, the size and consistency of the differences across hearing protection devices (HPDs) suggest that PT-REAT and MIRE measures hold promise for providing quick and relatively accurate estimations of an …
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Allograft bone in hip revision: the effect of locally applied pharmacological treatment.
… 2,300. During implant loosening, some of the bone in the femur is lost, which can make the revision more difficult. One way of handling bone loss has been the impaction technique. Allograft bone is morsellised and impacted into the defect before a prosthesis is inserted. Mechanically, the …
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Effectiveness of different medical interventions implemented when a change in hearing status is detected during ototoxicity monitoring
… pure tone audiometry (cPTA) including air conduction (AC) and bone conduction (BC), and ultra-high frequency audiometry (UHFA). Follow-up monitoring assessment occurred monthly if there was no significant change in hearing thresholds, and biweekly if an STS was detected. The ASHA criteria …