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Single-line (music)
Single-line may refer to: * Inflatable single-line kite, one of the few modern inventions in the world of kite design * Single-line diagram, a simplified notation for representing a three-phase power system in power engineering * Single-line working, the practice of using one track out of two on a double track railway * Single-track railway A single-track railway is a railway where trains traveling in both directions share the same track. Single track is usually found on lesser-used rail lines, often branch lines, where the level of traffic is not high enough to justify the co ... See also * Single yellow line {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inflatable Single-line Kite
The ram-air inflatable single-line kite is one of the few modern inventions in the world of kite design. Although Francis Rogallo's early kite patents had ram-air members in the claims, Domina Jalbert's parafoil ram-air wing, patented in 1944, emphatically changed the kite airscape for inflatable kites. Kytoons and balloon kites are inflatable kites. Kites sometimes combine ram-air inflation as well as closed-bladder inflation. The shape is loosely derived from an airfoil with air inlets usually at the front, and a bridle which distributes the tether line loads evenly across the whole base of the kite. These kites have no rigid spars. The immense strength of synthetic fabrics allows the creation of non-rigid three-dimensional shapes which hold their shape because the pressure of the air inside the kite is slightly higher than the pressure outside. As with hot air balloons, artistic creativity is often applied, so that fish, cats, and many other animals and characters are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single-line Diagram
In power engineering, a single-line diagram (SLD), also sometimes called one-line diagram, is a simplest symbolic representation of an electric power system. A single line in the diagram typically corresponds to more than one physical Electrical conductor, conductor: in a direct current system the line includes the supply and return paths, in a three-phase system the line represents all three phases (the conductors are both supply and return due to the nature of the alternating current circuits). The one-line diagram has its largest application in Power flow study, power flow studies. Electrical elements such as circuit breakers, transformers, capacitors, Busbar, bus bars, and conductors are shown by standardized schematic symbols. Instead of representing each of three phases with a separate line or terminal, only one conductor is represented. It is a form of block diagram graphically depicting the paths for power flow between entities of the system. Elements on the diagram d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single-line Working
On a railway Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a pre ..., single-line workingDriver's Rulebook: Module P1 - Sections 1 to 6 Single line working refers to the practice where, when one line out of the two lines is blocked, trains are able to use the other in either direction.Brainscape Flashcards: Single line working /ref> This is usually when a line is out of use for maintenanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single-track Railway
A single-track railway is a railway where trains traveling in both directions share the same track. Single track is usually found on lesser-used rail lines, often branch lines, where the level of traffic is not high enough to justify the cost of constructing and maintaining a second track. Advantages and disadvantages Single track is significantly cheaper to build and maintain, but has operational and safety disadvantages. For example, a single-track line that takes 15 minutes to travel through would have capacity for only two trains per hour in each direction safely. By contrast, a double track with signal boxes four minutes apart can allow up to 15 trains per hour in each direction safely, provided all the trains travel at the same speed. This hindrance on the capacity of a single track may be partly overcome by making the track one-way on alternate days, if the single track is not used for public passenger transit. Long freight trains are a problem if the passing s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
