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A falling weight deflectometer, towed by a truck. A falling weight deflectometer (FWD) is a testing device used by civil engineers to evaluate the physical properties of pavement in highways, local roads, airport pavements, harbor areas, railway tracks and elsewhere. The data acquired from FWDs is primarily used to estimate pavement structural ...
Falling weight deflectometer, in civil engineering; Fixed wireless data, in telecommunications; Four-wheel drive (often 4WD), of motor vehicles; Free World Dialup, a voice over IP network; Front-wheel drive, of motor vehicles
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Created Date: 8/30/2012 4:52:52 PM
The author of the new report (not free) says "Readers are cautioned not to rely on or in the future refer to numbers from the 2007-08 Insight SRI paper The Economic Cost of FOD to Airlines. This earlier effort was 'The' first document detailing the direct and indirect cost of FOD that was based on airline maintenance data (the entire document ...
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The stalagmometric method was improved by S. V. Chichkanov and colleagues, [2] who measured the weight of a fixed number of drops rather than counting the drops. This method for determining the surface tension may be more precise than the original method, especially for fluids whose surface is highly active.