Acoustical control

Television with automatic color, brightness, and acoustic control based on signal and environmental conditions... 

Nilsson, A., Petersson, F., Jonsson, H., Laurell, T., Acoustic control of suspended particles in micro fluidic chips. Labchip 2004, 4, 131-135. 

Nilsson A, Petersson F, Jonsson H, Laurell T (2004) Acoustic control of suspended particles in microfluidic chips. Lab Chip 4 131-135... 

Acoustical control can also be achieved by proper space planning. For instance, workstations that are positioned too closely do not provide suitable speech privacy and can be a source of disturbing conversational noise. As a generi rule, a minimum of 8-10 ft between employees, separated by acoustical panels or partitions, wUl provide normal speech privacy. 

ACD (activity cycle diagram), 506 ACE team benchmarking system, 1598-1601 ACID properties (of transactions), 721-723 Acid Rain Program, 593 Acoustical control, 1200 Acquisition tools (data), 83 Action-cycle model (cognitive tasks), 1017-1019... 

CDs (compact discs), online retafiing of, 266 CDSS (control-decision support system), 1777 CDSSs, see Clinical decision support systems C E diagrams, see Cause-and-effect diagrams Ceilings, and acoustical control, 1200 CeU 7 queueing model, 1663-1664, 1666-1667 Center for Creative Leadership, 857 Center for Customer Driven Quality (Purdue), 660... 

As the chip is actuated from underneath and an acoustic standing wave is induced in the flow channel since the excitation frequency is set to match the 1/2 resonance criterion of the channel width. It should be noted that the obtained standing wave in the flow channel is orthogonal to the incident wave propagation direction. This fact enables acoustic control of particle and cell displacement in the lateral direction, in plane with the microchip, which in turns opens the route to simple integration with other downstream acoustic separations steps or other microfluidic unit operations. 

Plastisol earpieces for acoustical control. [Data from Tutor, M. S. Green, R. T,... 

Acoustic control identification of sources of noise enclosure of noise muffling re-design of noise producing parts. 

Ko, B. Tondue, B.H. Acoustic control using a self-sensing actuator. J. Sound and Vibration, 187 (1995), pp. 145 165... 

Most automotive R D projects within adaptronics are concerned with active vibration control (AVC) and active structural acoustic control (ASAC) for optimization of NVH (noise, vibration and harshness) characteristics and even soimd design. Furthermore, active measmes to increase the passive safety of vehicles are being developed. Shape and position control as well as structmal health monitoring (SHM) are stiU of secondary importance. 

Active structural acoustic control (ASAC) Reduced structure-borne noise and sound emission/imission, increased passengers comfort, weight reduction, interior sound design... 

The form of acoustic control will vary with the configuration of the work station, but it is important to use the design stage to ensure that design of equipment or tooUng within a workplace, which makes up part of a work station, is always the primary method of attacking noise problems. This assumes that the process and the equipment... 

Acoustic control materials are used to reduce noise problems where the design of a machine or tool hasn t solved the problem, or to add to the reduction in noise resulting from good design. As noted earlier, acoustic control materials take two basic forms -porous material which reduces reflection of sound, known as reveiberation, or material of a relatively high density which can reduce the vibration of sound-emitting surfaces or reduce the transmission of sound through a barrier, such as a wall or floor. Certain composites achieve the same effect with less density. 

Merits of different forms of acoustic control materials... 

Again, it is useful to remember that machine design can reduce the noise level before acoustic control materials are employed. It should also be remembered that partial sound barriers are more effective against high frequency noise (a loud squeak) than low frequency noise (a rumble). 

In a suitable workplace of yorrr choice, identify equipment arrd tools used which have been designed with the use of acoustic control material, or with engineering controls on noise. 

Acoustic control Interior soft trim —Driven by telematics/electronics —Affects surface and substrate sandwich... 

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