Sound Emission
Mostrando 1-12 de 29 artigos, teses e dissertações.
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1. Simulation of Current Pulses and Sound Waves Resulting from Partial Discharges in a Needle-Plane Geometry in Air
Abstract Partial discharges can occur in different types of electric equipment and cause progressive insulation deterioration, so there is interest in monitoring partial discharges for assessing the state of the isolation of an electric system and to predict failures. Techniques to detect partial discharges, such as detecting ultrasonic emission, have been p
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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2. The effectiveness of berberine on noise-induced hearing loss: a rat model
SUMMARY OBJECTIVE: Noise-induced hearing loss is a preventable form of hearing loss that has serious social and economic impacts. This study aimed to investigate the protective effect of berberine, a potent antioxidant and anti-inflammatory agent, against Noise-induced hearing loss. METHODS: After applying distortion product otoacoustic emission, 28 female
Revista da Associação Médica Brasileira. Publicado em: 2022
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3. The Relationship between Contralateral Suppression of Transient Evoked Otoacoustic Emission and Unmasking of Speech Evoked Auditory Brainstem Response
Abstract Introduction Several studies have shown that efferent pathways of the auditory system improve perception of speech-in-noise. But, the majority of investigations assessing the role of efferent pathways on speech perception have used contralateral suppression of otoacoustic emissions as a measure of efferent activity. By studying the effect of effere
International Archives of Otorhinolaryngology. Publicado em: 2022
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4. Normal Hearing Function in Children Prenatally Exposed to Zika Virus
Abstract Introduction The association between prenatal Zika virus infection and hearing alterations in offspring has been the object of some studies, although few have assessed children without microcephaly. However, a current trend to include prenatal Zika virus exposure in the group of risk indicators for hearing loss is noted. Objective To present a ser
Int. Arch. Otorhinolaryngol.. Publicado em: 2020-09
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5. Effect of Vocal Fry on Voice and on Velopharyngeal Sphincter
Abstract Introduction It is known that the basal sound promotes shortening and adduction of the vocal folds and leaves the mucosa looser. However there are few studies that address the supralaryngeal physiological findings obtained using the technique. Objective To check the effectiveness of using vocal fry on the voice and velopharingeal port closure of
Int. Arch. Otorhinolaryngol.. Publicado em: 2016-06
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6. Projetos de mecanismo de desenvolvimento limpo (MDL) em aterros sanitários: contribuições das tecnologias ambientais para o desenvolvimento sustentável.
The Kyoto Protocol is regarded as one of the most ambitious global political events on the environment. Through this global environmental governance landmark major industrial nations pledged to cut their emissions of greenhouse gases (GHG) in the atmosphere. To facilitate compliance with emission targets for GHG, three flexibility mechanisms were created. Am
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/07/2011
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7. Aplicabilidad del monitoreo de emisiones del arco eléctrico para el control de calidad en el proceso MAG-S
Ensuring quality in welding is not a trivial task. For this purpose several quality control checks are performed, at the expense, costs and production times are increased. There are several automated welding systems and they are assisted by control systems based on monitoring of welding parameters. However, automated quality monitoring systems are limited an
Soldagem & Inspeção. Publicado em: 2011-12
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8. O mecanismo de desenvolvimento limpo (MDL) e transferência de tecnologia: o projeto de MDL do aterro sanitário de Salvador / O mecanismo de desenvolvimento limpo (MDL) e transferência de tecnologia: o projeto de MDL do aterro sanitário de Salvador
This study aims to verify technology transfer occurrence in the Clean Development Mechanism (CDM). This study object serves as an economic motivation for nations that need to reduce their carbon dioxide emission rates during the 2008-2012 marking period. The CDM takes all practicable steps to promote, facilitate and finance, the transfer of, or access to, en
Publicado em: 2009
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9. MODIFICAÇÕES VOCAIS DECORRENTES DA TÉCNICA FONOTERAPÊUTICA DE SONS HIPERAGUDOS
describe the acoustic vocal modifications occurred after the vocal technique of the high-pitched sound in young adult women without voice complaints and with normal larynx, it was done through Multi-Dimensional Voice Program. Method: 23 subjects participated in the study who signed the Statement of Free and Informed Consent, completed a questionnaire, the ea
Publicado em: 2008
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10. Iniciação ao trompete, trompa, trombone, bombardino e tuba: processos de ensino e aprendizagem dos fundamentos técnicos na aplicação do método Da Capo.
No Brasil as bandas de música são importantes formadoras de instrumentistas de sopro e percussão. É preciso conhecer melhor seus processos de ensino-aprendizagem e, assim, ampliar questões relativas às suas práticas pedagógicas. Este trabalho tem como tema os fundamentos de se tocar instrumentos de metais, mais especificamente trompete, trompa, tromb
Publicado em: 2008
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11. Recent results of source function imaging from AGS through CERN SPS to RHIC
Recent femtoscopic measurements involving the use of an imaging technique and a newly developed moment analysis are presented and discussed. We show that this new paradigm allows robust investigation of reaction dynamics for which the sound speed c s ¹ 0 during an extended hadronization period. Source functions extracted for charged
Brazilian Journal of Physics. Publicado em: 2007-09
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12. Amplificadores Ãpticos, estudos de polarizaÃÃo e geraÃÃo de pulso usando processos paramÃtricos em fibras Ãpticas
The recent telecommunication development can be, to a large extent, attributed to the capacity of transmitting information (video, sound and data) at high transmission rates (Tbits/s) through the optical fiber. The constant advances in the technological development of active and passive devices based on optical fibers have enabled a steady increase in commun
Publicado em: 2007