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Wire crossover symbols for circuit diagrams. The CAD symbol for insulated crossing wires is the same as the older, non-CAD symbol for non-insulated crossing wires. To avoid confusion, the wire "jump" (semi-circle) symbol for insulated wires in non-CAD schematics is recommended (as opposed to using the CAD-style symbol for no connection), so as to avoid confusion with the original, older style ...
Track gauge conversion is the changing of one railway track gauge (the distance between the running rails) to another. In general, requirements depend on whether the conversion is from a wider gauge to a narrower gauge or vice versa, on how the rail vehicles can be modified to accommodate a track gauge conversion, and on whether the gauge conversion is manual or automated.
The Colorado and Southern 3-ft-gauge lines were formed in 1898 from the Colorado Central and the Denver, South Park and Pacific Railroads.The narrow gauge operations had four distinct portions: the Platte Canyon Line from Denver to Como, the Gunnison Line from Como to Gunnison via Alpine Tunnel, Highline between Como and Leadville, and the Clear Creek rail line from Denver to Silver Plume.
ANSI/TIA-568 is a technical standard for commercial building cabling for telecommunications products and services. The title of the standard is Commercial Building Telecommunications Cabling Standard and is published by the Telecommunications Industry Association (TIA), a body accredited by the American National Standards Institute (ANSI).
Common rail fuel system on a Volvo truck engine. In 1916 Vickers pioneered the use of mechanical common rail systems in G-class submarine engines. For every 90° of rotation, four plunger pumps allowed a constant injection pressure of 3,000 pounds per square inch (210 bar; 21 MPa), with fuel delivery to individual cylinders being shut off by valves in the injector lines. [1]
Demonstration model of a direct methanol fuel cell (black layered cube) in its enclosure Scheme of a proton-conducting fuel cell. A fuel cell is an electrochemical cell that converts the chemical energy of a fuel (often hydrogen) and an oxidizing agent (often oxygen) [1] into electricity through a pair of redox reactions. [2]
While relatively straight-lined and boxy in appearance (leading to their "square-body" nickname from the public [2]) the Rounded Line trucks were the first generation of the C/K to be designed with the use of computers and wind tunnels, optimizing the exterior shape for lower drag and improved fuel economy. The chassis was an all-new design ...
In a rowing crew, the coxswain (/ ˈ k ɒ k s ən / KOK-sən; colloquially known as the cox or coxie) is a crewmember who does not row but directs the boat. [1] The coxswain sits facing the bow, unlike the rowers, and is responsible for steering the boat and coordinating the power and rhythm of the rowers. The coxswain's role while on the water ...