) Noise from the street is an occasional problem which was helped a little by drapes on the window. An additional drape across the doorway made only a slight improvement in isolation and was really in the way, so we gave it up.The trio of engineers named these bricks, “Cobogó”, for no other reason than to incorporate the first two

In this paper, the acoustic impedance of a liner is educed by a novel semi-analytical inverse technique. The liner sample is placed flush with the solid walls in a rectangular duct with grazing flow. The technique uses complex acoustic pressure measured at four positions at the wall of the duct, upstream and downstream of the lined section, and edu

So much has changed. When you get older, you look back on tensions and grievances and have another perspective on it. I think our relationship now is better than it's ever been. I would even describe it as great.Estende-se a manta A respeito de a conduta em tramos de 1,15m e em comprimentos iguais ao perímetro da conduta, mais a sobreposiç�

Unfortunately, all walls are somewhat flexible. Any motion caused by sound striking one side of the wall will result in sound radiated by the other side, an effect called coupling. If the sound hits a resonant frequency, the wall will boom like a drum. Most isolation techniques are really ways to reduce coupling and prevent resonances.The paper dea

Matching Theodore's massive beats with De La Rocha's fuzzed-out keys and typically incisive vocals, the duo crafted a stripped-down sound that harked back to Rage's rawest, most urgent material. According to Tim Commerford, a new album is in the works, but details are sketchy. Still, the mutual respect between the pair