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  2. Triple helix model of innovation - Wikipedia

    en.wikipedia.org/wiki/Triple_helix_model_of...

    The triple helix model of innovation, as theorized by Etzkowitz and Leydesdorff, is based on the interactions between the three following elements and their associated 'initial role': [9] universities engaging in basic research, industries producing commercial goods and governments that are regulating markets. [2]

  3. Helix of sustainability - Wikipedia

    en.wikipedia.org/wiki/Helix_of_sustainability

    The helix of sustainability - the Carbon cycle ideal for manufacture and use The international recycling symbol - not nature identical.. The helix of sustainability is a concept coined to help the manufacturing industry move to more sustainable practices by mapping its models of raw material use and reuse onto those of nature.

  4. Finite difference method - Wikipedia

    en.wikipedia.org/wiki/Finite_difference_method

    For example, consider the ordinary differential equation ′ = + The Euler method for solving this equation uses the finite difference quotient (+) ′ to approximate the differential equation by first substituting it for u'(x) then applying a little algebra (multiplying both sides by h, and then adding u(x) to both sides) to get (+) + (() +).

  5. Elbow method (clustering) - Wikipedia

    en.wikipedia.org/wiki/Elbow_method_(clustering)

    Explained variance. The "elbow" is indicated by the red circle. The number of clusters chosen should therefore be 4. In cluster analysis, the elbow method is a heuristic used in determining the number of clusters in a data set.

  6. Method acting - Wikipedia

    en.wikipedia.org/wiki/Method_acting

    Marlon Brando's performance in Elia Kazan's film of A Streetcar Named Desire exemplifies the power of Stanislavski-based acting in cinema. [1]Method acting, known as the Method, is a range of rehearsal techniques, as formulated by a number of different theatre practitioners, that seeks to encourage sincere and expressive performances through identifying with, understanding, and experiencing a ...

  7. Air separation - Wikipedia

    en.wikipedia.org/wiki/Air_separation

    A nitrogen generator Bottle of 4Å molecular sieves. Pressure swing adsorption provides separation of oxygen or nitrogen from air without liquefaction. The process operates around ambient temperature; a zeolite (molecular sponge) is exposed to high pressure air, then the air is released and an adsorbed film of the desired gas is released.

  8. Analytic hierarchy process - Wikipedia

    en.wikipedia.org/wiki/Analytic_hierarchy_process

    AHP is targeted at group decision making, [3] and is used for decision situations, in fields such as government, business, industry, [4] healthcare and education.. Rather than prescribing a "correct" decision, the AHP helps decision makers find the decision that best suits their goal and their understanding of the problem.

  9. SQ3R - Wikipedia

    en.wikipedia.org/wiki/SQ3R

    SQRRR or SQ3R is a reading comprehension method named for its five steps: survey, question, read, recite, and review.The method was introduced by Francis P. Robinson in his 1941 book Effective Study.