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  2. Values in Action Inventory of Strengths - Wikipedia

    en.wikipedia.org/wiki/Values_in_Action_Inventory...

    The character strengths in the four factor model could be organized into the following four groups: Niceness, Positivity, Intellect, and Conscientiousness. [15]: 792 Peterson and Seligman conducted a factor analysis and found that a five factor model, rather than their six hierarchical virtues model, best organized the strengths. [1]

  3. Bulgars - Wikipedia

    en.wikipedia.org/wiki/Bulgars

    The Bulgars, at least the Danubian Bulgars, had a well-developed clan and military administrative system of "inner" and "outer" tribes, [112] governed by the ruling clan. [113] They had many titles, and according to Steven Runciman the distinction between titles which represented offices and mere ornamental dignities was somewhat vague. [114]

  4. Currency strength index - Wikipedia

    en.wikipedia.org/wiki/Currency_strength_index

    Currency strength index expresses the index value of currency. For economists, it is often calculated as purchasing power , [ 1 ] while for financial traders, it can be described as an indicator, reflecting many factors related to the currency; for example, fundamental data, overall economic performance or interest rates. [ 2 ]

  5. Orthogonal array - Wikipedia

    en.wikipedia.org/wiki/Orthogonal_Array

    k is the number of factors, v is the number of levels, t is the strength, and λ is the index. The definition of strength leads to the parameter relation N = λv t. An orthogonal array is simple if it does not contain any repeated rows. (Subarrays of t columns may have repeated rows, as in the OA(18, 7, 3, 2) example pictured in this section.)

  6. Order of magnitude - Wikipedia

    en.wikipedia.org/wiki/Order_of_magnitude

    Order of magnitude is a concept used to discuss the scale of numbers in relation to one another. Two numbers are "within an order of magnitude" of each other if their ratio is between 1/10 and 10. In other words, the two numbers are within about a factor of 10 of each other. [1] For example, 1 and 1.02 are within an order of magnitude.

  7. Tsai–Wu failure criterion - Wikipedia

    en.wikipedia.org/wiki/Tsai–Wu_failure_criterion

    For DIAB Divinycell H250 PVC foam (density 250 kg/cu.m.), the values of the strengths are = MPa, = MPa, = MPa, = MPa. [ 4 ] For aluminum foams in plane stress, a simplified form of the Tsai–Wu criterion may be used if we assume that the tensile and compressive failure strengths are the same and that there are no shear effects on the failure ...

  8. Bollinger Bands - Wikipedia

    en.wikipedia.org/wiki/Bollinger_Bands

    S&P 500 with 20-day, two-standard-deviation Bollinger Bands, %b and bandwidth. Bollinger Bands (/ ˈ b ɒ l ɪ n dʒ ər /) are a type of statistical chart characterizing the prices and volatility over time of a financial instrument or commodity, using a formulaic method propounded by John Bollinger in the 1980s.

  9. List of materials properties - Wikipedia

    en.wikipedia.org/wiki/List_of_materials_properties

    A material property is an intensive property of a material, i.e., a physical property or chemical property that does not depend on the amount of the material. These quantitative properties may be used as a metric by which the benefits of one material versus another can be compared, thereby aiding in materials selection.