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  2. Dimensionless quantity - Wikipedia

    en.wikipedia.org/wiki/Dimensionless_quantity

    Dimensionless quantities, or quantities of dimension one, [1] are quantities implicitly defined in a manner that prevents their aggregation into units of measurement. [2] [3] Typically expressed as ratios that align with another system, these quantities do not necessitate explicitly defined units.

  3. Nondimensionalization - Wikipedia

    en.wikipedia.org/wiki/Nondimensionalization

    Choose judiciously the definition of the characteristic unit for each variable so that the coefficients of as many terms as possible become 1; Rewrite the system of equations in terms of their new dimensionless quantities. The last three steps are usually specific to the problem where nondimensionalization is applied.

  4. List of dimensionless quantities - Wikipedia

    en.wikipedia.org/wiki/List_of_dimensionless...

    Chemical engineering, material science, mechanics (A scale to show the energy needed for detaching two solid particles) [33] [34] Cost of transport: COT = energy efficiency, economics (ratio of energy input to kinetic motion) Damping ratio

  5. Scale analysis (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Scale_analysis_(mathematics)

    Scale analysis anticipates within a factor of order one when done properly, the expensive results produced by exact analyses. Scale analysis rules as follows: Rule1-First step in scale analysis is to define the domain of extent in which we apply scale analysis. Any scale analysis of a flow region that is not uniquely defined is not valid.

  6. Standardized coefficient - Wikipedia

    en.wikipedia.org/wiki/Standardized_coefficient

    Values for standardized and unstandardized coefficients can also be re-scaled to one another subsequent to either type of analysis. Suppose that β {\displaystyle \beta } is the regression coefficient resulting from a linear regression (predicting y {\displaystyle y} by x {\displaystyle x} ).

  7. Scale analysis (statistics) - Wikipedia

    en.wikipedia.org/wiki/Scale_analysis_(statistics)

    The item-total correlation approach is a way of identifying a group of questions whose responses can be combined into a single measure or scale. This is a simple approach that works by ensuring that, when considered across a whole population, responses to the questions in the group tend to vary together and, in particular, that responses to no individual question are poorly related to an ...

  8. Sharp downgrades to US unit labor costs bode well for ...

    www.aol.com/news/us-third-quarter-unit-labor...

    The revisions reflected updated compensation data from the Bureau of Economic Analysis. U.S. stocks were mixed. The dollar advanced against a basket of currencies. U.S. Treasury yields rose.

  9. Glossary of economics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_economics

    Also called resource cost advantage. The ability of a party (whether an individual, firm, or country) to produce a greater quantity of a good, product, or service than competitors using the same amount of resources. absorption The total demand for all final marketed goods and services by all economic agents resident in an economy, regardless of the origin of the goods and services themselves ...