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  2. Prism correction - Wikipedia

    en.wikipedia.org/wiki/Prism_correction

    Thus a prism of 1 Δ would produce 1 cm visible displacement at 100 cm, or 1 meter. This can be represented mathematically as: = ⁡ where is the amount of prism correction in prism dioptres, and is the angle of deviation of the light.

  3. Benesi–Hildebrand method - Wikipedia

    en.wikipedia.org/wiki/Benesi–Hildebrand_method

    The equation that they developed is as follows: K − 1 = A ε HG − [ H ] 0 − [ G ] 0 + C H C G A ε HG {\displaystyle K^{-1}={\frac {A}{\varepsilon _{\ce {HG}}}}-[{\ce {H}}]_{0}-[{\ce {G}}]_{0}+{\frac {C_{\ce {H}}C_{\ce {G}}}{A}}\varepsilon _{\ce {HG}}}

  4. Goldman equation - Wikipedia

    en.wikipedia.org/wiki/Goldman_equation

    For a given ion denoted A with valence n A, its flux j A —in other words, the number of ions crossing per time and per area of the membrane—is given by the formula j A = − D A ( d [ A ] d z − n A F R T E m L [ A ] ) {\displaystyle j_{\mathrm {A} }=-D_{\mathrm {A} }\left({\frac {d\left[\mathrm {A} \right]}{dz}}-{\frac {n_{\mathrm {A} }F ...

  5. Eyring equation - Wikipedia

    en.wikipedia.org/wiki/Eyring_equation

    The Eyring equation (occasionally also known as Eyring–Polanyi equation) is an equation used in chemical kinetics to describe changes in the rate of a chemical reaction against temperature. It was developed almost simultaneously in 1935 by Henry Eyring, Meredith Gwynne Evans and Michael Polanyi.

  6. Chemical equation - Wikipedia

    en.wikipedia.org/wiki/Chemical_equation

    Using the same chemical equation again, write the corresponding matrix equation: s 1 CH 4 + s 2 O 2 s 3 CO 2 + s 4 H 2 O {\displaystyle {\ce {{\mathit {s}}_{1}{CH4}+{\mathit {s}}_{2}{O2}->{\mathit {s}}_{3}{CO2}+{\mathit {s}}_{4}{H2O}}}}

  7. Born–Oppenheimer approximation - Wikipedia

    en.wikipedia.org/wiki/Born–Oppenheimer...

    Multiplying the second equation by i and combining it with the first equation yields the (complex) equation − ℏ 2 2 m ∇ 2 χ + ( u ~ 1 − E ) χ + i ℏ 2 2 m [ 2 τ 12 ∇ + ∇ τ 12 ] χ + i ( u 1 − u 2 ) ψ 2 = 0. {\displaystyle -{\frac {\hbar ^{2}}{2m}} abla ^{2}\chi +({\tilde {u}}_{1}-E)\chi +i{\frac {\hbar ^{2}}{2m}}[2\mathbf ...

  8. Davies equation - Wikipedia

    en.wikipedia.org/wiki/Davies_equation

    The Davies equation is an empirical extension of Debye–Hückel theory which can be used to calculate activity coefficients of electrolyte solutions at relatively high concentrations at 25 °C. The equation, originally published in 1938, was refined by fitting to experimental data.

  9. BET theory - Wikipedia

    en.wikipedia.org/wiki/BET_theory

    The above equation is usually rearranged to yield the following equation for the ease of analysis: p / p 0 v [ 1 − ( p / p 0 ) ] = c − 1 v m c ( p p 0 ) + 1 v m c , ( 1 ) {\displaystyle {\frac {{p}/{p_{0}}}{v\left[1-\left({p}/{p_{0}}\right)\right]}}={\frac {c-1}{v_{\mathrm {m} }c}}\left({\frac {p}{p_{0}}}\right)+{\frac {1}{v_{m}c}},\qquad (1)}

  10. Marcus theory - Wikipedia

    en.wikipedia.org/wiki/Marcus_theory

    The result for two conducting spheres in a solvent is the formula of Marcus G = ( 1 2 r 1 + 1 2 r 2 − 1 R ) ⋅ ( 1 ϵ opt − 1 ϵ s ) ⋅ ( Δ e ) 2 {\displaystyle G=\left({\frac {1}{2r_{1}}}+{\frac {1}{2r_{2}}}-{\frac {1}{R}}\right)\cdot \left({\frac {1}{\epsilon _{\text{opt}}}}-{\frac {1}{\epsilon _{\text{s}}}}\right)\cdot (\Delta e)^{2}}

  11. Esophoria - Wikipedia

    en.wikipedia.org/wiki/Esophoria

    Esophoria is an eye condition involving inward deviation of the eye, usually due to extra-ocular muscle imbalance. It is a type of heterophoria. Cause. Causes include: Refractive errors; Divergence insufficiency; Convergence excess; this can be due to nerve, muscle, congenital or mechanical anomalies.