Switch-stand latch

(1) An internal mechanism for controlling concurrent events or the use of system resources. (2) An electronic circuit that permanently records (until reset) the status of a ...

latch

Construction; General

A beveled metal tongue operated by a spring loaded knob or lever. The tongue's bevel lets you close the door and engage the locking mechanism, if any, without using a key. ...

latch

Software; Video editing

a) Hardware device that captures information and holds it (e.g., group of flip-flops). b) An electronic circuit that holds a signal on once it has been selected. To latch a signal ...

latch

Computer; Components; Software development

A short-term synchronization object protecting actions that need not be locked for the life of a transaction. A latch is primarily used to protect a row that the storage engine is ...

absolute blocking

Railways; Railroad

A control arrangement for rail traffic in which a track is divided into sections or blocks upon which a train may not enter until the preceding train has left.

gotthard base tunnel

Railways; Railroad

Currently the world's longest at 35.4-mile (57-kilometer), the Gotthard Base Tunnel through the Swiss Alps was first conceived in 1947 by engineer Eduard Gruner. The project ...

Gotthard Base Tunnel

Railways; Railroad

Currently the world's longest at 35.4-mile (57-kilometer), the Gotthard Base Tunnel through the Swiss Alps was first conceived in 1947 by engineer Eduard Gruner. The project ...

insulated switch

Railways; Railroad

A switch in which the fixtures, principally the gage plates and the switch rods connecting one rail to the other, are provided with insulation so that electric currents will not ...

turnout number

Railways; Railroad

The number corresponding to the number of frog used in a turnout.

insulating rail joint

Railways; Railroad

Sometimes called Insulated Joint. A rail joint designed to stop the flow of electric current from rail to rail, as at the end of a track circuit, by means of nonconductors so ...

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Industry/Domain: People Category: Musicians

The Band Perry

The Band Perry is a country music group, made up of three siblings: Kimberly Perry (guitarist, pianist), Reid Perry (bass guitarist), and Neil Perry ...