Anti-Ballistic Missile Treaty of 1972, signed and ratified by the (former) Soviet Union and the United States, limiting deployment on each side to one site comprising 100 interceptors, 100 launchers, and several ground-based radars. The Treaty also regulates development and testing. In December, 2001, President George W. Bush announced that the United States would withdraw from the treaty, which the U.S. did in June 2002
- Browse Related Terms: ABM Treaty, Brilliant Eyes Probe (BEP), Endo- Exoatmospheric Interceptor (E 2 I), GBI, GBI-P, GBI-X, GBMI, GBRI, IFICS, Natural Ground and Atmospheric Environments, Robustness, Space and Missile Tracking System (SMTS), Theater Missile Defense Ground- Based Radar (TMD-GBR)
A terminal Soviet anti-ballistic missile (ABM) defense system using transportable phased-array radars and both long and short-range, high acceleration interceptors similar to the U.S. Sprint. This system was developed and tested in the 1970s and early 1980s.
- Browse Related Terms: ABM-X-3, Ballistic Missile Early Warning System (BMEWS), Break-Up, Cat House, Cobra Dane, Cobra Judy, Dog House, LPAR, MFAR, Moscow BMD System, PATRIOT, Perimeter Acquisition Radar and Attack Characterization System (PARCS), SSPAR
In a computer or data transmission system, to terminate, usually in a controlled manner, a processing activity because it is impossible or undesirable for the activity to proceed. 2. In data transmission, a function invoked by a sending station to cause the recipient to discard or ignore all bit sequences transmitted by the sender since the preceding flag sequence.
- Browse Related Terms: abort, ADCCP, bit-sequence independence, calling sequence, flag sequence, format structure, m-sequence, media stream, random number, self-synchronizing code, unexpected frame, unnumbered command, unnumbered response
A term traditionally used to describe the top portion of a newspaper. In email or web marketing it means the area of content viewable prior to scrolling. Some people also define above the fold as an ad location at the very top of the screen, but due to banner blindness typical ad locations do not perform as well as ads that are well integrated into content. If ads look like content they typically perform much better. See also: Google AdSense heat map - shows ad clickthrough rate estimates based on ad positioning.
- Browse Related Terms: Above the Fold, Beyond The Banner, Call To Action, Content Integration, Demographics, Geo-Targeting, Landing Page, Negative Keyword, Pay-per-post (PPP), Share of Voice, Target Audience, trademark
Used to describe statements in ontologies; an assertion; a fact that is associated with a terminological vocabulary within a knowledge base; A-Box statements are sometimes associated with instances of T-Box classes.
- Browse Related Terms: ABox, anonymous class, asserted hierarchy, CamelBack notation, defined class, inferred hierarchy, OWL DL, OWL-Full, OWL-Lite, owl:Thing, Pellet, probe class, Reasoner, restriction, SHER, T, Web Ontology Language (OWL)
Any of a number of hard materials, such as aluminum oxide, silicon carbide, and diamond, that are powdered and carefully graded according to particle size, and used to shape and/or finish optical elements, including the endfaces of optical fibers and connectors. Note: For finishing the endfaces of optical fiber connectors, abrasive particles are adhered to a substrate of plastic film, in a fashion after that of sandpaper. The film is in turn supported by a hard, flat plate. The connector is supported by a fixture that holds it securely in the proper position for finishing. The grinding motion may be performed manually or by a machine. [After FAA]
- Browse Related Terms: abrasive, area loss, break out, buffer, cleave, mechanical splice, mechanically induced modulation, mechanically intermateable connectors, multifiber joint, numerical aperture loss, optical connector, optical section, optical time domain reflectometer (OTDR), precision-sleeve splicing, splice loss, splice organizer, terminus
In communications, computer, and data processing systems, an address that directly identifies a storage location without the use of an intermediate reference, e.g., a base address or a relative address. [After Weik '96]
- Browse Related Terms: absolute address, addressability, cache memory, computer program origin, fractal, magnetic core storage, main storage, memory, multiprocessor, processing unit, resident, spooling, virtual storage
Absolute boosting enables a document to be consistently displayed at a given position in the result set when a user searches with a specific query. It also prevents individual documents from being displayed when a user searches with a specific query.
- Browse Related Terms: Absolute boosting, boost class, boost word, Boosting, Date range, Freshness, Freshness boosting, Golden set, Rank profile, Relative boosting
The time interval or phase difference between transmission and reception of a signal. 2. The total time between the instant a bit enters the network and the instant a corresponding bit exists the network.[T1.503-1989] [T1.507-1996]
- Browse Related Terms: absolute delay, activity factor, baud (Bd), bias distortion, error-free second (EFS), open switching interval (OSI), phase difference, receiver release-time delay, release time, ringing cycle, signal duration, signal sampling, signal unit alignment, significant interval, start-stop distortion, synchronous transmission, tie, Time, time code ambiguity, time code resolution, time diversity, time guard band, time instability, time jitter, time scale, time standard, time-gated direct-sequence spread spectrum, uniform time scale, unit interval, virtual height
A filename whose full path is unambiguously given starting from the top (root) of a file system tree. For instance
c:\Java\bin\javac.exeSee relative filename.
- Browse Related Terms: absolute filename, asant, binding (XML), build file, Document Object Model, DOM, Extensible Markup Language, Java API for XML Processing (JAXP), kXML, processing instruction, RDF, relative filename, XLL, XML Schema
Of an antenna, for a given direction and polarization, the ratio of (a) the power that would be required at the input of an ideal isotropic radiator to (b) the power actually supplied to the given antenna, to produce the same radiation intensity in the far-field region. Note 1: If no direction is given, the absolute gain of an antenna corresponds to the direction of maximum effective radiated power. Note 2: Absolute gain is usually expressed in dB. Synonym isotropic gain. 2. Of a device, the ratio of (a) the signal level at the output of the device to (b) that of its input under a specified set of operating conditions. Note 1: Examples of absolute gain are no-load gain, full-load gain, and small-signal gain. Note 2: Absolute gain is usually expressed in dB.
- Browse Related Terms: absolute gain, antenna array, antenna blind cone, antenna efficiency, antenna electrical beam tilt, antenna gain, antenna lobe, aperture, biconical antenna, far-field radiation pattern, main lobe, near-field diffraction pattern, null, omnidirectional antenna, periscope antenna, Phased Array, radiation pattern, radiation resistance, radio beam, reference antenna, rhombic antenna, side lobe, single-polarized antenna
It specifies a
- transfer protocol
- domain name
- and often a file name
A link which shows the full URL of the page being linked at. Some links only show relative link paths instead of having the entire reference URL within the a href tag. Due to canonicalization and hijacking related issues it is typically preferred to use absolute links over relative links. Example absolute link <a href="http://seobook.com/folder/filename.html">Cool Stuff</a> Example relative link <a href="../folder/filename.html">Cool Stuff</a>
- Browse Related Terms: .htaccess, 301, 302, Absolute Link, Canonical URL, CSS, Hijacking, Meta Refresh, Redirect, Relative Link, Scraper sites, SSI
- Browse Related Terms: absolute temperature, antenna gain-to-noise-temperature (G/T), antenna noise temperature, carrier-to-receiver noise density (C/kT), equivalent noise resistance, equivalent noise temperature, equivalent satellite link noise temperature, noise equivalent power (NEP), noise figure (NF), noise power density, noise temperature, phase equalizer, phon, specific detectivity, terahertz (THz), thermal noise
In the transmission of electrical, electromagnetic, or acoustic signals, the conversion of the transmitted energy into another form, usually thermal. [After 2196] Note 1: Absorption is one cause of signal attenuation. Note 2: The conversion takes place as a result of interaction between the incident energy and the material medium, at the molecular or atomic level.
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A spectral region in which the absorption coefficient reaches a relative maximum, by virtue of the physical properties of the matter in which the absorption process takes place. [FAA]
- Browse Related Terms: absorption, absorption band, absorption index, Absorptivity, F layer, material absorption, path loss, phonon absorption, Photoelectric Effect, photovoltaic effect, sudden ionospheric disturbance (SID)
A measure of the attenuation caused by absorption of energy that results from its passage through a medium. [After 2196] Note 1: Absorption coefficients are usually expressed in units of reciprocal distance. Note 2: The sum of the absorption coefficient and the scattering coefficient is the attenuation coefficient.
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