ACENTECH INC

Acentech will leverage its expertise and considerable experience in solving vibration and noise problems to develop and provide finite element models and modal and transfer function analyses of the E- ...

Tinnitus, along with hearing loss, are the two top service-related disabilities for veterans. It has been estimated that together the cost to the Veterans Administration is $1.5B annually. While hea ...

Acentech proposes to develop an underwater sound projector source that can be used for Low Frequency Long Range Acoustic Communications, and which is operational down to a depth of 1000 m. This transd ...

The goal of this Phase II will be a full scale demonstration of an acoustic metamaterial cloak on a UUV-like vehicle. The design will be based on the Cummer-Schurig cylindrical solution for a perfect ...

The rejection of transient and broadband gunshot noise signals in the presence of speech has the problem that speech is also transient and broadband. Although adaptive filtering and/or matched filter ...

Acoustic cloaking – the ability to direct sound completely around an object – is an exciting possibility. Potential military applications include making underwater objects invisible to threat sona ...

This proposal is concerned with two important aspects of sound as it affects divers; the ability to receive and send communications (“comms”), and the effects of ambient noise, particularly in con ...

This proposal is concerned with the use of single crystal PMN-PT as a transducer element in underwater communication systems. The high sensitivity and strain capability of these materials makes them u ...

The noise levels on an aircraft carrier flight deck can approach 150 dB, an environment in which personnel must work, communicate, and avoid danger. The attenuation required cannot be achieved by pas ...

Knowing the kind(s) of machinery and equipment contained in a building and its approximate location prior to having to enter the building is a valuable asset to military operations, particularly in ur ...