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  2. Train communication network - Wikipedia

    en.wikipedia.org/wiki/Train_communication_network

    a) select the wireless network on the basis of QoS parameters requested by the application; b) allow TCMS and/or OMTS applications, installed on-board and communicating on the on-board communication network, to have a remote access to applications running on ground installations; c) allow applications running on ground installations to have a ...

  3. Method ringing - Wikipedia

    en.wikipedia.org/wiki/Method_ringing

    The highest bell in pitch is known as the treble and the lowest the tenor. The majority of bell towers have the ring of bells (or ropes) going clockwise from the treble. For convenience, the bells are referred to by number, with the treble being number 1 and the other bells numbered by their pitch (2, 3, 4, etc.) sequentially down the scale.

  4. Bell System Practices - Wikipedia

    en.wikipedia.org/wiki/Bell_System_Practices

    A typical volume of Bell System Practices from the 1970s. The Bell System Practices (BSPs) is a compilation of technical publications which describes the best methods of engineering, constructing, installing, and maintaining the telephone plant of the Bell System under direction of AT&T and Bell Telephone Laboratories. [1]

  5. Peal - Wikipedia

    en.wikipedia.org/wiki/Peal

    Peal board in St Michael and All Angels' church, Penkridge, Staffordshire, recording the first peal on the new bells in 1832. In campanology (bell ringing), a peal is the special name given to a specific type of performance of change ringing which meets certain exacting conditions for duration, complexity and quality.

  6. Visible Speech - Wikipedia

    en.wikipedia.org/wiki/Visible_Speech

    Bell was known internationally as a teacher of speech and proper elocution and an author of books on the subject. The system is composed of symbols that show the position and movement of the throat, tongue, and lips as they produce the sounds of language, and it is a type of phonetic notation .

  7. Bell test - Wikipedia

    en.wikipedia.org/wiki/Bell_test

    In theory, the results could be "coincidentally" consistent with both. To address this problem, Bell proposed a mathematical description of local realism that placed a statistical limit on the likelihood of that eventuality. If the results of an experiment violate Bell's inequality, local hidden variables can be ruled out as their cause.

  8. Change ringing - Wikipedia

    en.wikipedia.org/wiki/Change_ringing

    A bell that is up is dangerous to be near, and only expert ringers should ever contemplate entering a bell chamber or touching a rope when the bells are up. To raise a bell, the ringer pulls on the rope and starts the bell swinging. Each time the bell swings the ringer adds a little more energy to the system, similar to pushing a child's swing.

  9. European Train Control System - Wikipedia

    en.wikipedia.org/wiki/European_Train_Control_System

    The specification was written in 1996 in response to EU Council Directive 96/48/EC99 [5] of 23 July 1996 on interoperability of the trans-European high-speed rail system. . First the European Railway Research Institute was instructed to formulate the specification and about the same time the ERTMS User Group was formed from six railway operators that took over the lead role in the specificat