What is Multiple: Definition and 1000 Discussions

A multiple-unit train or simply multiple unit (MU) is a self-propelled train composed of one or more carriages joined together, which when coupled to another multiple unit can be controlled by a single driver, with multiple-unit train control.
Although multiple units consist of several carriages, single self-propelled carriages - also called railcars, rail motor coaches or railbuses - are in fact multiple-units when two or more of them are working connected through multiple-unit train control (regardless if passengers can walk between the units or not).
The term multiple unit does not denote locomotives using multiple-unit train control.

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  3. A

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  4. T

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  5. ChristinaJ

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  7. A

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  9. A

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  10. A

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  11. F

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  12. D

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  13. M

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  14. C

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  15. R

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  16. R

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  17. J

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    I was looking at how to derive an integrating factor for a non-exact DE that has multiple variable dependency, i.e. µ is xy-dependent, and I found the explanation at the link in the middle of the page at equation (22) (link...
  18. C

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  19. J

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    I'm trying to get a method to determine the time, t, when two sine waves added together peak, an exact solution. For instance, F(t) = sin(w1*t) + sin(w2*t) Obviously this is not really mathematically straightforward because there are infinitely many solution based on the nature of the sine...
  20. B

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  21. T

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  22. T

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  23. Z

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  25. L

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  26. W

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  36. N

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  40. B

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  41. W

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  42. D

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  43. M

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  44. S

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  45. N

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  48. G

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  49. K

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  50. E

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