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  2. Carrier-sense multiple access with collision detection

    en.wikipedia.org/wiki/Carrier-sense_multiple...

    This in turn means: A station noting a collision has occurred is sending a 4 to 6 byte long pattern composed of 16 1-0 bit combinations. [ note 2 ] The purpose of this is to ensure that any other node which may currently be receiving a frame will receive the jam signal in place of the correct 32-bit MAC CRC; this causes the other receivers to ...

  3. Fuel-management systems - Wikipedia

    en.wikipedia.org/wiki/Fuel-management_systems

    [1] Some fuel companies offer total fuel-management systems whereby they provide elements of a card-based system along with on-site fuel delivery and refueling services. Mobile fuel management refers to a fleet of fuel trucks or tankers which provide fuel supply to commercial fleets of trucks or construction equipment.

  4. Marine transfer operations - Wikipedia

    en.wikipedia.org/wiki/Marine_transfer_operations

    The person-in-charge on the dock is called a Loading master-PIC and the person-in charge on the barge will be the Tankerman-PIC. The person-in-charge on a tanker ship will be the deck officer who monitors the transfer of product in the cargo control room. All persons-in-charge must have special training in order to obtain the proper credentials ...

  5. Common rail - Wikipedia

    en.wikipedia.org/wiki/Common_rail

    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]

  6. Four-terminal sensing - Wikipedia

    en.wikipedia.org/wiki/Four-terminal_sensing

    Four-point measurement of resistance between voltage sense connections 2 and 3. Current is supplied via force connections 1 and 4. In electrical engineering, four-terminal sensing (4T sensing), 4-wire sensing, or 4-point probes method is an electrical impedance measuring technique that uses separate pairs of current-carrying and voltage-sensing electrodes to make more accurate measurements ...

  7. Standard Carrier Alpha Code - Wikipedia

    en.wikipedia.org/wiki/Standard_Carrier_Alpha_Code

    The standard carrier alpha code "NYKU" on an NYK Line container The Standard Carrier Alpha Code ( SCAC ) is a privately controlled US code used to identify vessel operating common carriers (VOCC). It is typically two to four letters long.

  8. Intermodal freight transport - Wikipedia

    en.wikipedia.org/wiki/Intermodal_freight_transport

    By modern standards these containers were small, being 1.5 or 3.0 meters (4.9 or 9.8 ft) long, normally wooden and with a curved roof and insufficient strength for stacking. From 1928 the London, Midland & Scottish Railway offered "door to door" intermodal road-rail services using these containers.

  9. Loading master - Wikipedia

    en.wikipedia.org/wiki/Loading_master

    Of extreme importance in the duties of the loading master-PIC is continuous radio communication with the vessel person-in-charge who will be a Tankerman-PIC if transferring with a barge or a deck officer of the Merchant Marine if the transfer is with a tanker ship. Prior to product moving between the vessel and marine terminal a pre-transfer ...