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  2. Matrix (chemical analysis) - Wikipedia

    en.wikipedia.org/wiki/Matrix_(chemical_analysis)

    A matrix effect value of less than 100 indicates suppression, while a value larger than 100 is a sign of matrix enhancement. An alternative definition of matrix effect utilizes the formula: M E = 100 ( A ( e x t r a c t ) A ( s t a n d a r d ) ) − 100 {\displaystyle ME=100\left({\frac {A(extract)}{A(standard)}}\right)-100}

  3. Matrix theory (physics) - Wikipedia

    en.wikipedia.org/wiki/Matrix_theory_(physics)

    The BFSS matrix model can therefore be used as a prototype for a correct formulation of M-theory and a tool for investigating the properties of M-theory in a relatively simple setting. The BFSS matrix model is also considered the worldvolume theory of a large number of D0-branes in Type IIA string theory. [2]

  4. Haddon Matrix - Wikipedia

    en.wikipedia.org/wiki/Haddon_Matrix

    The Haddon Matrix is the most commonly used paradigm in the injury prevention field. Developed by William Haddon in 1970, the matrix looks at factors related to personal attributes, vector or agent attributes and environmental attributes; before, during and after an injury or death .

  5. Petersen matrix - Wikipedia

    en.wikipedia.org/wiki/Petersen_matrix

    The Petersen matrix is a comprehensive description of systems of biochemical reactions used to model reactors for pollution control (engineered decomposition) as well as in environmental systems. It has as many columns as the number of relevant involved components ( chemicals , pollutants , biomasses , gases ) and as many rows as the number of ...

  6. Direct stiffness method - Wikipedia

    en.wikipedia.org/wiki/Direct_stiffness_method

    Between 1934 and 1938 A. R. Collar and W. J. Duncan published the first papers with the representation and terminology for matrix systems that are used today. Aeroelastic research continued through World War II but publication restrictions from 1938 to 1947 make this work difficult to trace.

  7. Matrix model - Wikipedia

    en.wikipedia.org/wiki/Matrix_model

    a model using a matrix in mathematics; Matrix models (physics), a simplified quantum gauge theory and related mathematical techniques used to study a wide range of topics in theoretical and mathematical physics; Matrix theory (physics), a quantum mechanical model; Matrix population models, a type of population model that uses matrix algebra

  8. Mueller calculus - Wikipedia

    en.wikipedia.org/wiki/Mueller_calculus

    Mueller calculus is a matrix method for manipulating Stokes vectors, which represent the polarization of light. It was developed in 1943 by Hans Mueller . In this technique, the effect of a particular optical element is represented by a Mueller matrix—a 4×4 matrix that is an overlapping generalization of the Jones matrix .

  9. Glyceryl behenate - Wikipedia

    en.wikipedia.org/wiki/Glyceryl_behenate

    Glyceryl behenate is a fat used in cosmetics, foods, and oral pharmaceutical formulations.In cosmetics, it is mainly used as a viscosity-increasing agent in emulsions.. In pharmaceutical formulations, glyceryl behenate is mainly used as a tablet and capsule lubricant and as a lipidic coating excipient.