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  2. Engineering change order - Wikipedia

    en.wikipedia.org/wiki/Engineering_Change_Order

    List of documents and departments affected by the change. The most important part of making a change is to see that all pertinent groups are notified and all documents updated. Approval of the change. As with the detail and assembly drawings, the changes must be approved only by those individuals that are authorized to approve such a document.

  3. Dehumidifier - Wikipedia

    en.wikipedia.org/wiki/Dehumidifier

    A typical "portable" dehumidifier can be moved about on built-in casters. A dehumidifier is an air conditioning device which reduces and maintains the level of humidity in the air. [1] This is done usually for health or thermal comfort reasons or to eliminate musty odor and to prevent the growth of mildew by extracting water from the air. It ...

  4. Error correction code - Wikipedia

    en.wikipedia.org/wiki/Error_correction_code

    Low-density parity-check (LDPC) codes are a class of highly efficient linear block codes made from many single parity check (SPC) codes. They can provide performance very close to the channel capacity (the theoretical maximum) using an iterated soft-decision decoding approach, at linear time complexity in terms of their block length.

  5. Reference designator - Wikipedia

    en.wikipedia.org/wiki/Reference_designator

    The reference designator usually consists of one or two letters followed by a number, e.g. C3, D1, R4, U15. The number is sometimes followed by a letter, indicating that components are grouped or matched with each other, e.g. R17A, R17B. The IEEE 315 standard contains a list of Class Designation Letters to use for electrical and electronic ...

  6. Fan coil unit - Wikipedia

    en.wikipedia.org/wiki/Fan_coil_unit

    These motors are sometimes called DC motors, sometimes EC motors and occasionally DC/EC motors. DC stands for direct current and EC stands for electronically commutated.. DC motors allow the speed of the fans within a fan coil unit to be controlled by means of a 0-10 Volt input control signal to the motor/s, the transformers and speed switches associated with AC fan coils are not required.

  7. What NFL games are tomorrow? Thanksgiving Day games ... - AOL

    www.aol.com/nfl-games-tomorrow-thanksgiving-day...

    Thursday's slate of Week 13 NFL games includes teams with a rich history playing on the holiday. Here's tomorrow's schedule and how to watch each game.

  8. AOL Mail for Verizon Customers - AOL Help

    help.aol.com/products/aol-mail-verizon

    AOL Mail welcomes Verizon customers to our safe and delightful email experience!

  9. Glossary of HVAC terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_HVAC_terms

    dehumidifier A dehumidifier is the equipment that extracts and removes humidity from the air. It works by cooling air to the point where water turns to liquid from vapor form and then the liquid is removed. diffuser A diffuser is placed over ductwork, and it separates air with vanes going in differing directions.