One of the most efficient, cost effective and widely used approaches to reduce the tonal signature of aeronautic engine noise is the so-called liners-structures located in the internal walls of the nacelle (the external structure of the motor) that form an acoustic treatment. In the research project called "Silent Aircraft", funded by FINEP and Embraer S.A. and involving some Brazilian universities, including the Federal University of Santa Catarina (UFSC), an extensive study has been conducted to better understand the behavior of such elements, as well as to predict its effect on engine noise.
An experimental study of the acoustic impedance of Helmholtz resonator arrays under a turbulent boundary layer
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization.
Tais como Há as tintas que simulam este cimento queimado, o mesmo ocorre usando a tinta por lousa. Pinte, divirta-se e mude todo este dia a parede do tua lar com 1 desenho diferente!
the behavior of such elements, as well as to predict its effect on engine noise. This study was carried out
The curved lines, designed with perfection nod to the architecture of Brasilia by Niemeyer; furthermore, the concrete modules descend from the Cobogós, which lends its name to the house, created in Recife and click here diffused by Lucio Costa in delicate references to colonial architecture.
Nos trópicos a read more luz do sol incide de forma generosa. Os elementos vazados desenham a sombra nos pisos e paredes, um efeito que transforma todo este ambiente para quem este vê desde o exterior e interior. Durante as estações e ao longo dos dias tal luz natural surge por variados formas como um componente de que sobrevé especialmentem na Arquitetura.
 Se você forrar algumas ou Lindas as paredes com destemido ou alguns dos materiais citados, check here eles irãeste servir saiba como "absorvedores" desse eco. Â
This can be tested with a mirror and a flashlight. Set the mirror on the console and hold the flashlight by your ear aimed at the mirror. If the light beam falls on or near the speakers there is a potential reflection problem. This can usually be fixed by propping up the decoracao back of the board.
the ‘cobogó’ is a common ceramic perforated tile used in many brazilian buildings, mainly in the 20th century with the modernist movement in architecture.
× Please check the boxes for the options that you would like to add. Leave all boxes unchecked for unit only.
These steps can result in a very quiet space, but they get progressively more expensive-- the real question is when is it quiet enough? The easy test is to make a recording of the space.
Nesse caso usando qualquer outro item em uma obra, é importante que os cobogós sejam fabricados com materiais por capacidade para gerar ESTES efeitos esperados e evitar read more refazer reformas em pouco tempo.
The window between control room and studio used to be a traditional feature of a recording facility. The home studio doesn't really need one, because you can get a decent video camera and a large monitor for less than what a good window costs to build. If you want a window, figure 2 shows what has to be done: