hub

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hub

1. the central portion of a wheel, propeller, fan, etc., through which the axle passes
2. Computing a device for connecting computers in a network

Hub

 

the central part of a rotating component, such as a flywheel, pulley, or gear, with an opening used to mount the part on a shaft or axle. The opening usually has a keyway or splines to transmit torque. In cases where the component is designed to rotate freely on the axle, the hub opening is fitted with a pressed-in bushing or rolling-contact bearing. To ensure strength, hubs are usually designed with an outside diameter 1.5–1.8 times the diameter of the opening. To prevent misalignment of the component on the shaft, the thickness of the hub should be at least equal to the diameter of the opening.

hub

[həb]
(building construction)
The core section of a building from which corridors extend.
(computer science)
An electric socket in a plugboard into which one may insert or connect leads or may plug wires.
(design engineering)
The cylindrical central part of a wheel, propeller, or fan.
A piece in a lock that is turned by the knob spindle, causing the bolt to move.
A short coupling that joins plumbing pipes.
(engineering)
In surveying, a stake that marks the position of a theodolite.
(metallurgy)
A steel punch used in making a working die for a coin or medal.

hub

1. The core of a building usually containing one or more stairs and elevators, from which corridors radiate.
2. The part of a lock through which the spindle passes to actuate the mechanism.
3. A stake marking a theodolite position in surveying.
4.See bell.
5. The thickened inner portion of a gear or wheel, i.e., the portion closest to the shaft.

hub

(networking)
(By analogy with the hub of a wheel) A device connected to several other devices.

In ARCnet, a hub is used to connect several computers together. In a message handling service, a number of local computers might exchange messages solely with a hub computer. The hub would be responsible for exchanging messages with other hubs and non-local computers.

hub

(1) See Web hub, digital media hub, intelligent hub and Surface Hub.

(2) In an Ethernet network, a hub is a central device to which all clients and servers are wired. Most Ethernet hubs are active and regenerate the data bits on the output side in order to maintain a strong signal. Ethernet hubs have mostly given way to Ethernet switches. See Ethernet, hub vs. switch and LAN.

(3) In a Token Ring network, a device to which all clients and servers are wired. The Token Ring hub is officially a "Multi-station Access Unit" (MAU). See Token Ring and LAN.


References in periodicals archive ?
(3) "Notons aussi que, a cote du choix des sujets, l'ecriture des titres est effectivement plus orientee vers des logiques d'audience en traitant plus aisement le jeu politique" (Hube, 2010: 266).
Steven Hube, chairman of The Ohio Society's Peer Review Acceptance Committee, says that as peer review transitions from an educational to a punitive tool, there are increasing calls for the results to be made public.
Tampoco sabemos si hube alguna conversacion previa antes del 7 de febrero, fecha en la que se redacta el Acta que firman los cuatro, en que admiten no haber razones para plantear una "cuestion personal" entre sus representados.
The number of taxpayers subject to the AMT has been growing rapidly in recent years (Hube and Herman 1998; Steuerle 2001).
(Hube 1999), using undisclosed criteria to select returns.
Lasterbalk serves at least to amplify Rubin's pretensions to knighthood and courtly love: Geselle, daz wil ich dir sage: du salt mir myn swert noch trage vnd salt mir vff seczen myne rittirs hube vnd salt mit dy federn uz dem hare kluben vnd salt dinen vnvorspart Anthonien, myner frawen czart.
Perhaps these excess funds could be distributed as vouchers to partially match private contributions to the state-managed college savings plans available in more than 15 states (Hube, 1998), similar to employer matching of employee pension contributions.
I asked Janet Couch and Doug Hube, both researchers at the University of Alberta, to set up their pair of telescopes on the roof of the physics lab.
Jose Mariano Ayala 17 year old mestizo in 1758 says the same thing "bajo de la cual le hube su virginidad." For the complaints of Spanish clerics about this practice, see Juan Bautista, Advertencias para confesores p.