partial cancellation
1Pardon — For the Breton religious festivals, see Pardon (ceremony). Clemency redirects here. For the town, see Clemency, Luxembourg …
2Selective fading — or frequency selective fading is a radio propagation anomaly caused by partial cancellation of a radio signal by itself mdash; the signal arrives at the receiver by two different paths, and at least one of the paths is changing (lengthening or… …
3Resonant room modes — affect the low frequency response of a sound system at the listening position. They are actually one of the biggest obstacles to high fidelity reproduction with modern equipment as they exist to varying degrees in all rooms and can only be… …
4Rician fading — is a stochastic model for radio propagation anomaly caused by partial cancellation of a radio signal by itself mdash; the signal arrives at the receiver by two different paths, and at least one of the paths is changing (lengthening or shortening) …
5Arriva Trains Wales — Infobox Rail companies bgcolor=FFFFFF image filename = ATW 142002 CardiffCentral 01.jpg widthpx=300px franchise=Wales and borders 8 December 2003 – 2018 logo filename=Arriva Trains Wales logo.gif nameforarea=Region regions=Wales abbr=AW… …
6Unsharp masking — is an image manipulation technique now familiar to many users of digital image processing software, but it seems to have been first used in Germany in the 1930s as a way of increasing the acutance, or apparent sharpness, of photographic images.… …
7Shell theorem — In classical mechanics, the shell theorem gives gravitational simplifications that can be applied to objects inside or outside a spherically symmetrical body. This theorem has particular application to astronomy. Isaac Newton proved the shell… …
8Hammett equation — ; 1935; 17(1); 125 136 [http://pubs.acs.org/cgi bin/abstract.cgi/chreay/1935/17/i01/f pdf/f cr60056a010.pdf Abstract] ] .The basic idea is that for any two reactions with two aromatic reactants only differing in the type of substituent the change …
9ferrite — /fer uyt/, n. 1. Chem. a compound, as NaFeO2, formed when ferric oxide is combined with a more basic metallic oxide. 2. Metall. the pure iron constituent of ferrous metals, as distinguished from the iron carbides. [1875 80; < L ferr(um) iron +… …
10particle accelerator — accelerator (def. 7). [1945 50] * * * Device that accelerates a beam of fast moving, electrically charged atoms (ions) or subatomic particles. Accelerators are used to study the structure of atomic nuclei (see atom) and the nature of subatomic… …
