Sound Pollution
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Acoustical performance of porous absorber made from recycled rubber and polyurethane resin
This paper reports an investigation of a new kind of material and its acoustical performance. The main component of this porous absorber is the ground tyre rubber (GTR) with different particle sizes, from the shredding of tyres of heavy vehicles, mixed with different proportion of polyurethane resin. Acoustical properties were assessed according to ISO 10534
Lat. Am. j. solids struct.. Publicado em: 2013-05
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2. AVALIAÇÃO DO RUÍDO DE TRÁFEGO VEICULAR EM ÁREA CENTRAL DE CHAPECÓ SC / EVALUATION OF VEHICULAR TRAFFIC NOISE IN CENTRAL ZONE CHAPECÓ SC
The development of cities and population growth have led, among other urban problems, the increase in sound pressure levels of environmental noise. With the overcrowding of cities, the roads start to host large flows of vehicles, among other sound sources. These factors, coupled with the layout and massing of buildings, make the road a polluter responsible f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/12/2011
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3. Estudo do ruído causado pelo tráfego de veículos em rodovias com diferentes tipos de revestimentos de pavimentos. / A study of the noise caused by the traffic of vehicles in highways with different pavements surfaces.
O ruído é uma forma de poluição que causa muitos problemas à saúde humana e à economia, sendo que o ruído gerado pelo tráfego de veículos é uma das principais fontes da poluição sonora. Assim, diversos países vêm esforçando-se para melhor compreender e, consequentemente, encontrar possíveis soluções à redução da poluição sonora. Contu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/04/2011
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4. RUÍDO EM SANTA MARIA - RS A CONTRIBUIÇÃO DO TRÁFEGO VEICULAR EM ÁREA MISTA (Residencial/ Comercial)
The urban noise generated by traffic is shown as being one of the strong means of environmental pollution. It is known that its influence on the people facilitates unhealthy damages. This work tries to contribute with that theme, through measure of urban noise levels in road with great flow characterized as mixed area (commercial / residential) in Santa Mari
Publicado em: 2009
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5. Procedimento de AnÃlise do Impacto Ambiental do RuÃdo de TrÃfego em Terminais de Transporte Coletivo Urbano: um estudo de caso no MunicÃpio de Fortaleza / PROCEDURE OF ANALYSIS OF THE ENVIRONMENTAL IMPACT OF THE NOISE OF TRAFFIC IN TERMINALS OF URBAN COLLECTIVE TRANSPORT: A STUDY OF CASE IN THE MUNICIPAL DISTRICT OF FORTALEZA
O processo de urbanizaÃÃo das grandes cidades, o aumento das viagens motorizadas e o acrÃscimo das atividades industriais tÃm agravado as externalidades ambientais, em particular a poluiÃÃo sonora. Essa poluiÃÃo incomoda à populaÃÃo, contribui para a degradaÃÃo da qualidade de vida, tendo reflexos em todo o organismo e nÃo somente no aparelho a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/09/2008
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6. Poluição sonora: um grave problema na cidade de Mossoró-RN
Nas últimas décadas constatamos alterações ambientais de grandes proporções em nosso planeta. Poluição sonora, poluição visual, do ar, das águas, dos solos, todos os principais tipos de poluição ambiental se intensificaram no rastro do desenvolvimento econômico. Em Mossoró não foi diferente, o meio ambiente sofreu um longo e contínuo desgast
Publicado em: 2008
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7. Discussão sobre a pressão sonora que acomete o trabalhador da indústria da construção civil
The decision for the building construction industry was due to its dynamics, having diverse areas within a project, many construction workers are involved, and they are exposed to machinery and equipments noise. Machinery noise is the main cause of medical leave and injuries; it can also cause early retirements by the INSS [Brazilian National Institute of So
Publicado em: 2007
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8. ESTUDO DO IMPACTO AMBIENTAL CAUSADO PELO AUMENTO DA POLUIÇÃO SONORA EM ÁREAS PRÓXIMAS AOS CENTROS DE LAZER NOTURNO NA CIDADE DE SANTA MARIA-RS / STUDY OF THE ENVIRONMENTAL IMPACT CAUSED BY THE INCREASE OF THE SOUND POLLUTION IN CLOSE AREAS TO THE CENTERS OF NIGHT LEISURE IN SANTA MARIA-RS
In the urban centers there is occurrence of significant sound pollution that it occurs of several origins, such as: noise of traffic, noise of night atmospheres, industries, among others. ihe leisure activities, such as, bars, nightclubs, convenience stores in gas stations, among other, when they saw n points n they bring with itself a great flow of vehicles
Publicado em: 2006
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9. Corrections in the determination of the sound power level obtained through intensimetry technique / Correções na determinção do nivel de potencia sonora obtido atraves da tecnica da intensimetria
Many Brazilian cities are facing noise pollution problems. Traffic noise is the main cause of inconvenience followed by noise generated by equipments used in civil construction. In order to maintain a certain life quality level in large cities it is paramount to control noise emission and propagation generated by civil construction. Sound power level is an i
Publicado em: 2006
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10. Influencia da forma urbana em ambiente sonoro : um estudo no bairro Jardins em Aracaju (SE)
Environmental noise pollution resulting from the combination of various noise sources, such as, alarms, sirens, commercial activities and services, religious temples, industries, civil engineering works and the traffic of automobile vehicles, have increased the level of urban noise and contributed to the appearance of sound environments that are more and mor
Publicado em: 2005
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11. Occurrence of human-associated yeasts in bivalve shellfish from Long Island Sound.
Candida parapsilosis, C. tropicalis, and Torulopsis glabrata were the human-associated yeasts most frequently isolated from quahogs, oysters, and mussels collected from four estuarine areas along the northern shore of Long Island Sound. Some inconsistency and seasonal variation in the occurrence of these and other yeast species were noted. In particular, C.
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12. Distribution of viral abundance in the reef environment of Key Largo, Florida.
The distribution of viral and microbial abundance in the Key Largo, Fla., reef environment was measured. Viral abundance was measured by transmission electron microscope direct counts and plaque titer on specific bacterial hosts in water and sediment samples from Florida Bay (Blackwater Sound) and along a transect from Key Largo to the outer edge of the reef