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  2. Parts-per notation - Wikipedia

    en.wikipedia.org/wiki/Parts-per_notation

    At 1 ppm the solution is a very pale yellow. As the concentration increases the colour becomes a more vibrant yellow, then orange, with the final 10,000 ppm a deep red colour. In science and engineering , the parts-per notation is a set of pseudo-units to describe small values of miscellaneous dimensionless quantities , e.g. mole fraction or ...

  3. Glossary of physics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_physics

    The word "laser" is an acronym for "light amplification by stimulated emission of radiation" law of universal gravitation LC circuit A circuit consisting of an inductor (with inductance L) and a capacitor (with capacitance C). Lenz's law lepton An elementary particle which does not undergo strong interactions but is subject to the Pauli ...

  4. List of email subject abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_email_subject...

    Used at the end of the subject when the entire content of the email is contained in the subject and the body remains empty. This saves the recipient's time because they then do not have to open the message. 1L – One Liner. Used at the beginning of the subject when the subject of the email is the only text contained in the email.

  5. Glossary of environmental science - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_environmental...

    carbon footprint – a measure of the carbon emissions that are emitted over the full life cycle of a product or service and usually expressed as grams of CO 2-e. carbon labelling – use of product labels that display greenhouse emissions associated with goods (www.carbontrustcertification.com for product carbon footprint methodology).

  6. Wikipedia:Glossary - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Glossary

    To change the subject matter of an article, a template or (most frequently) a category to one that is more acceptable for editorial or encyclopedic purposes. If by doing so the subject area is broadened, the term upscope is sometimes used. Retarget See § Repoint. Retired Describes an editor who has left Wikipedia. See Wikipedia:Retiring.

  7. List of academic fields - Wikipedia

    en.wikipedia.org/wiki/List_of_academic_fields

    Mind map of top level disciplines and professions. An academic discipline or field of study is known as a branch of knowledge.It is taught as an accredited part of higher education.

  8. Terminology - Wikipedia

    en.wikipedia.org/wiki/Terminology

    Terminology is a group of specialized words and respective meanings in a particular field, and also the study of such terms and their use; [1] the latter meaning is also known as terminology science. A term is a word, compound word , or multi-word expression that in specific contexts is given specific meanings—these may deviate from the ...

  9. Prediction by partial matching - Wikipedia

    en.wikipedia.org/wiki/Prediction_by_partial_matching

    Prediction by partial matching (PPM) is an adaptive statistical data compression technique based on context modeling and prediction. PPM models use a set of previous symbols in the uncompressed symbol stream to predict the next symbol in the stream. PPM algorithms can also be used to cluster data into predicted groupings in cluster analysis.