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  2. Quantum efficiency - Wikipedia

    en.wikipedia.org/wiki/Quantum_efficiency

    A graph showing variation of quantum efficiency with wavelength of a CCD chip from Wide Field and Planetary Camera 2, formerly installed on the Hubble Space Telescope.. The term quantum efficiency (QE) may apply to incident photon to converted electron (IPCE) ratio [1] of a photosensitive device, or it may refer to the TMR effect of a magnetic tunnel junction.

  3. Quantum electrodynamics - Wikipedia

    en.wikipedia.org/wiki/Quantum_electrodynamics

    To calculate the probability of any interactive process between electrons and photons, it is a matter of first noting, with Feynman diagrams, all the possible ways in which the process can be constructed from the three basic elements. Each diagram involves some calculation involving definite rules to find the associated probability amplitude.

  4. Plasma parameters - Wikipedia

    en.wikipedia.org/wiki/Plasma_parameters

    All quantities are in Gaussian units except energy and temperature which are in electronvolts.For the sake of simplicity, a single ionic species is assumed. The ion mass is expressed in units of the proton mass, = / and the ion charge in units of the elementary charge, = / (in the case of a fully ionized atom, equals to the respective atomic number).

  5. Current ratio: What it is and how to calculate it - AOL

    www.aol.com/finance/current-ratio-calculate...

    How to calculate the current ratio. You can calculate the current ratio by dividing a company’s total current assets by its total current liabilities. Again, current assets are resources that ...

  6. Wall-plug efficiency - Wikipedia

    en.wikipedia.org/wiki/Wall-plug_efficiency

    In optics, wall-plug efficiency or radiant efficiency is the energy conversion efficiency with which the system converts electrical power into optical power.It is defined as the ratio of the radiant flux (i.e., the total optical output power) to the input electrical power.

  7. Valuation using multiples - Wikipedia

    en.wikipedia.org/wiki/Valuation_using_multiples

    The price earnings ratio (P/E) of each identified peer company can be calculated as long as they are profitable. The P/E is calculated as: P/E = Current stock price / (Net profit / Weighted average number of shares) Particular attention is paid to companies with P/E ratios substantially higher or lower than the peer group.

  8. Learning Mathanese: How to Calculate the P/E Ratio - AOL

    www.aol.com/news/2011-09-15-learning-mathanese...

    Math: the four-letter word you can say on TV yet so reviled that people go great lengths to avoid it, even when they know doing so puts their financial well-being in peril. Wait! Don't click away.

  9. How To Calculate Your Debt-to-Income Ratio - AOL

    www.aol.com/finance/calculate-debt-income-ratio...

    Calculate Your Debt-to-Income Ratio. To find out what your debt-to-income ratio is, use a debt-to-income ratio calculator or simply add up your minimum recurring debts — that is, the least ...