Noise Criteria
Mostrando 13-24 de 41 artigos, teses e dissertações.
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13. O TRABALHO DAS PROSTITUTAS QUE RESIDEM EM CASAS NOTURNAS: UMA PERSPECTIVA PSICODINÂMICA / O TRABALHO DAS PROSTITUTAS QUE RESIDEM EM CASAS NOTURNAS: UMA PERSPECTIVA PSICODINÂMICA
A case study of descriptive and exploratory was conducted aiming to investigate the meanings attributed to work and the experience of prostitutes living in nightclubs in relation to their work in the light of the psychodynamics of work. The specific objectives of the research were: to investigate the meanings that the prostitutes who live in nightclubs attac
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/03/2010
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14. Novas propostas em filtragem de projeções tomográficas sob ruído Poisson
In this dissertation we present techniques for filtering of tomographic projections with Poisson noise. For the filtering of the tomogram projections we use variations of three filtering techniques: Bayesian estimation, Wiener filtering and thresholding in Wavelet domain. We used ten MAP estimators, each estimator with a diferent probability density as prior
Publicado em: 2010
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15. Materiais e técnicas contemporâneas para controle de ruído aéreo em edifícios de escritórios: subsídios para especificações / Contemporaneous materials and techniques to air noise control on corporate edifices: specification foundations
Big cities have been taken the ground thought freeways and avenues, where constant and loud noise takes place. At theses ways, corporate edifices are also often established, so they naturally become exposed to the external noise interference, regardless the own internal facilities noising. The consequence is that people how work at these places are more pron
Publicado em: 2009
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16. Modelagem simultânea de média e dispersão e aplicações na pesquisa agronômica / Joint modeling of mean and dispersion and applications to agricultural research
Several experimental designs that are currently applied are based on agricultural experiments. These experimental data are, usually, analised with statistical models that assume constant residual variance (or homogeneous), as basic assumption. However, this assumption shows hard to stand for, when environmental or external factors exert strong influence over
Publicado em: 2009
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17. THE SPEECH-RECEPTIONS THRESHOLD IN NOISY AND QUIET CONDITIONS IN INDIVIDUALS WITH HEARING LOSS / RECONHECIMENTO DE FALA NO SILÊNCIO E NO RUÍDO COM FONES EM INDIVÍDUOS COM PERDA AUDITIVA NEUROSSENSORIAL DE DIFERENTES CONFIGURAÇÕES
Hearing is one of the most important senses for establishing a satisfying communication among people. This way, individuals stroked by different kinds of hearing losses show difficulties on speech-reception and in their ability to communicate through different ways for there is a correlation between these difficulties and the types and degrees of hearing los
Publicado em: 2008
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18. Avaliação da exposição ocupacional ao ruído em atividades que utilizam fones de ouvido (headsets e headphones). / Evaluation of noise occupational exposure in activities that involve communication through headsets and headphones.
Com o avanço técnico-científico e a necessidade de rapidez nas comunicações dos diversos segmentos da economia e da vida moderna, a utilização de fones de ouvido não se restringe mais somente aos serviços de Telefonia (telefonistas, atendentes, técnicos e cabistas), operadores de telemarketing ou teleatendimento, mas também a outras profissões co
Publicado em: 2008
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19. Multicolor Quantum Correlations in the Optical Parametric Oscillator / Correlações quânticas multicolores no oscilador paramétrico ótico
We have investigated the collective quantum properties of the three bright light beams produced by an optical parametric oscillator (OPO) operating above threshold, named pump, signal, and idler. We have analyzed experimentally their intensity and phase quantum fluctuations, and how they are correlated. For the first time, we have observed the existence of p
Publicado em: 2008
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20. A INTERFERÊNCIA DO ZUMBIDO NA QUALIDADE DE VIDA DE TRABALHADORES EXPOSTOS A RUIDO
Introduction: Tinnitus, independently of the hearing complaint, is a very common auditory symptom in individuals exposed to high sound pressure levels. It is still necessary to further understand the mechanisms of generation, detection and perception of tinnitus. Objective: The objective of this study is to evaluate the tinnitus interference in the quality o
Publicado em: 2007
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21. Minimização da variação do erro de transmissão de pares engrenados atraves da modificação da superficie dos dentes / Minimization of transmission error excitation of gear pairs through tooth surface modification
Noise that comes from geared systems can be annoying, and in some cases unacceptable by users of those systems. Gear noise is dose to pure tone, presents high amplitude, and its frequency is near to most sensitive region of human ear. Transmission error (TE) excitation is recognized as one of the main sources of gear noise and vibration. It is well-known tha
Publicado em: 2007
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22. Avaliação clinica e estudo eletromiografico dos musculos masseter e porção anterior do temporal em individuos portadores de disfunção temporomandibular / Clinical assessment and electromyographic study in masseter and anterior portion of temporal muscles in patients with temporomandibular disorder
Temporomandibular dysfunction (TMD) affects muscles and bones and is frequently associated with the presence of para-functional habits. Frequent signs and symptoms include limited mandibular movements, noise, masticatory and speaking difficulty, headaches, facial and cervical pain, and muscle pain in temporomandibular articulation (TMA). Pain is a common exp
Publicado em: 2007
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23. Parâmetros vocais e percepção vocal de professores universitários / Vocal parameters and vocal perception of University Teachers
The following study intends to go deep into dysphonia in university teachers, due to the large incidence of vocal disorders among these professionals. The voice disorder related to the work is evaluated as any voice alteration linked with its use during the professional activity which decreases or damages the persons communication. This research has a quanti
Publicado em: 2007
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24. Teste de detecção de intervalos aleatórios de silêncio em crianças com história de otite média recorrente / Random gap detection test in children with recorrent otitis media
Introduction: otitis media is an inflammatory disease of middle ear that has greater occurrence on pediatric population, being considered a helth public problem all around the world. Peripheral ans fluctuanting hearing loss may be observed and this may cause a disturbance on the complex auditory stimuli perception, including speech. This altered auditory per
Publicado em: 2006