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Telecommunications - A multiport device, by means of which two or more audiovisual terminals may intercommunicate in a conference call. Note: A "principal MCU" has been assigned a superior controlling function in a call where two or more MCUs in that call are termed "satellite MCUs". The physical realization of an MCU may be such that two or more independent conferences may be set up within the same unit; logically, however, there is no relationship between these conferences; the text of this definition refers to an MCU only as a logical entity pertinent to the particular call of concern. [T1.800.06-1995]
ATIS - Cite This Source - This Definition - Browse Related Terms: failure, net control station (NCS), room preset, stunt box
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Telecommunications - A one-way domestic public radio service rendered on microwave frequencies from a fixed station transmitting (usually in an omnidirectional pattern) to multiple receiving facilities located at fixed points. [47CFR] 2. A domestic public radio service rendered on microwave frequencies from one or more fixed stations transmitting to multiple receiving facilities located at fixed points. MDS also may encompass transmissions from response stations to response station hubs or associated fixed stations. [47CFR]
ATIS - Cite This Source - This Definition - Browse Related Terms: aeronautical fixed station, authorized frequency, cable television relay service (CARS) station, CARS, domestic fixed public service, fixed microwave auxiliary station, fixed station, Instructional Television Fixed Service (ITFS), instructional television fixed station, international fixed public control service, multipoint distribution service: (MDS) 1., paging, public correspondence, relay station, rural subscriber station
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Telecommunications - A data communications link that interconnects three or more terminals.
ATIS - Cite This Source - This Definition - Browse Related Terms: concurrent operation, crosslink, data forwarder, data link, data link connection identifier (DLCI), ER link, functional signaling link, HDLC, high-level data link control (HDLC), link orderwire, live link, multi-homed host, point-to-point link, remote linked registration, synchronous data link control (SDLC), tactical data information link--A (TADIL--A), tactical data information link--B (TADIL--B), tactical data information link (TADIL)
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Telecommunications - In digital networking, an active device, having multiple input/output (I/O) ports, in which a signal introduced at the input of any port appears at the output of every port. Note 1: A multiport repeater usually performs regenerative functions, i.e., it reshapes the digital signals. Note 2: Depending on the application, a multiport repeater may be designed not to repeat a signal back to the port from which it originated.
ATIS - Cite This Source - This Definition - Browse Related Terms: deception repeater, regenerative repeater, repeater, request-repeat (RQ) signal
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Stem Cell - Cells isolated from bone marrow that can be differentiated into cells with characteristics of cartilage, fat, and bone.
The President's Council on Bioethics - Cite This Source - This Definition - Browse Related Terms: Adult (or somatic) stem cell, Cardiomyoctes, Cluster differentiation (CD), differentiation, Directed differentiation, Osteoprogenitor, Plasticity, Precursor Cells, Progenitor cell, Transdifferentiation
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Stem Cell - Stem cells that have the capability of developing cells of multiple germ layers.
DHHS - Cite This Source - This Definition - Stem cells whose progeny are of multiple differentiated cell types, but all within a particular tissue, organ, or physiological system. For example, blood-forming (hematopoietic) stem cells are single multipotent cells that can produce all cell types that are normal components of the blood.
ISSCR - Cite This Source - This Definition - Browse Related Terms: Endogenous stem cells, Fate (of cell progeny), Lineage, Long-term self-renewal, Multipotent, Side population (SP) stem cell, stem cell, Unipotent stem cells
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Telecommunications - Simultaneous processing by two or more processors acting in concert. 2. The simultaneous execution of two or more computer programs or sequences of instructions by a single processor.
ATIS - Cite This Source - This Definition - Browse Related Terms: address part, array processor, bootstrap, branch, CPU, executive state, main storage, microinstruction, processor, programmer, remote job entry (RJE), stored-program computer, subroutine
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Telecommunications - A computer that has two or more processors that have common access to a main storage.
ATIS - Cite This Source - This Definition - Browse Related Terms: addressability, associative storage, cache memory, content-addressable storage, data bus, Memory, Off-Line Storage, permanent storage, processing unit, storage cell, virtual storage
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Telecommunications - A mode of operation that provides for the interleaved execution of two or more computer programs by a single processor.
ATIS - Cite This Source - This Definition - Browse Related Terms: asynchronous operation, audit review file, background processing, base address, Batch Processing, computer system, Dalvik, Database Management System (DBMS), emulate, interrupt, JOB, machine-independent, malicious applets, Object, overlay, process, Program, Restart, run, simple buffering, supervisory program, trace program
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Java - An operating system that is able to run multiple programs concurrently.
David J. Barnes - Cite This Source - This Definition - Browse Related Terms: deployment, host system, hostname, look-and-feel, multiple-boot options, normalization, North American Industry Classification System (NAICS), Operating System, Software, Software Engineering, System Administrator, Thin Client, timesharing system, window manager
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Telecommunications - A test signal consisting of a white flag, a 2T pulse, and modulated pulses. The modulating frequencies of the pulses correspond to the frequency packets of the multiburst portion of the combination test signal (with the exception of 0.5 MHz), superimposed upon standard synchronizing and blanking signals. [T1.502-1988]
ATIS - Cite This Source - This Definition - Browse Related Terms: adaptive differential pulse-code modulation (ADPCM), carrier (cxr), chirping, Di Group, digital modulation, hop, pulse-amplitude modulation (PAM), pulse carrier, pulse-duration modulation (PDM), pulse-frequency modulation (PFM), pulse-interval modulation, pulse-length modulation, pulse link repeater (PLR), pulse-position modulation (PPM), pulse-repetition-rate modulation, pulse-time modulation (PTM), pulse-width modulation (PWM), pulsed FM systems, sub-band adaptive differential pulse code modulation (SB-ADPCM)
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Water - A dam constructed for two or more purposes (e.g. storage, flood control, navigation, power generation, recreation, or fish and wildlife enhancement.)
Bureau of Reclamation - Cite This Source - This Definition - Browse Related Terms: Appropriation, asap, BASIC, Domestic water use (residential water use), Flash flood, Full pool, Multiple-purpose reservoir (multipurpose reservoir), Prior appropriation, Refuge compatibility requirements, Winters Doctrine
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Water - A project designed for irrigation, power, flood control, municipal and industrial, recreation, and fish and wildlife benefits, in any combinations of two or more (contrasted to single-purpose projects serving only one need).
Bureau of Reclamation - Cite This Source - This Definition - Browse Related Terms: ALP, BCPA, maintenance, overhang, Project, Spills
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Weather - In hydrologic terms, a reservoir constructed and equipped to provide storage and release of water for two or more purposes such as flood control, power development, navigation, irrigation, recreation, pollution abatement, domestic water supply, etc.
NOAA National Weather Service - Cite This Source - This Definition - Browse Related Terms: Active Conservation Storage, Active Storage Capacity, Area-Capacity Curve, Conservation Storage, Dead Storage, Exclusive Flood Control Storage Capacity, Flood Control Storage, Inactive Storage Capacity, Irrigation, Live Capacity, reservoir, Sediment Storage Capacity
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Telecommunications - A radio link between a transmitting Earth station and a receiving Earth station through two or more satellites, without any intermediate Earth station. A multi-satellite link comprises one uplink, one or more satellite-to-satellite links, and one downlink. [NTIA] [RR]
ATIS - Cite This Source - This Definition - Browse Related Terms: active satellite, amateur-satellite service, communications satellite, Earth exploration-satellite service, fixed-satellite service, INTELSAT, inter-satellite service, meteorological-satellite service, passive satellite, Passive Sensor, radionavigation-satellite service, Satellite, satellite communications, satellite link, satellite network, satellite operation, satellite PBX, satellite system