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  2. Double-entry bookkeeping - Wikipedia

    en.wikipedia.org/wiki/Double-entry_bookkeeping

    The double-entry system has two equal and corresponding sides, known as debit and credit; this is based on the fundamental accounting principle that for every debit, there must be an equal and opposite credit. A transaction in double-entry bookkeeping always affects at least two accounts, always includes at least one debit and one credit, and ...

  3. Decisional balance sheet - Wikipedia

    en.wikipedia.org/wiki/Decisional_balance_sheet

    John C. Norcross is among the psychologists who have simplified the balance sheet to four cells: the pros and cons of changing, for self and for others. [19] Similarly, a number of psychologists have simplified the balance sheet to a four-cell format consisting of the pros and cons of the current behaviour and of a changed behaviour. [20]

  4. Impulse response - Wikipedia

    en.wikipedia.org/wiki/Impulse_response

    The impulse response of a linear transformation is the image of Dirac's delta function under the transformation, analogous to the fundamental solution of a partial differential operator. It is usually easier to analyze systems using transfer functions as opposed to impulse responses. The transfer function is the Laplace transform of the impulse ...

  5. File:MLS.Impulse.Response.pdf - Wikipedia

    en.wikipedia.org/wiki/File:MLS.Impulse.Response.pdf

    Microsoft Word - MLS.Impulse.Response: Author: Bautsch: Software used: Acrobat PDFMaker 7.0.5 for Word: Conversion program: Acrobat Distiller 7.0.5 (Windows) Encrypted: no: Page size: 612 x 792 pts (letter) Version of PDF format: 1.4

  6. Kaiser window - Wikipedia

    en.wikipedia.org/wiki/Kaiser_window

    The Kaiser window for several values of its parameter. The Kaiser window, also known as the Kaiser–Bessel window, was developed by James Kaiser at Bell Laboratories.It is a one-parameter family of window functions used in finite impulse response filter design and spectral analysis.

  7. Infinite impulse response - Wikipedia

    en.wikipedia.org/wiki/Infinite_impulse_response

    Infinite impulse response (IIR) is a property applying to many linear time-invariant systems that are distinguished by having an impulse response that does not become exactly zero past a certain point but continues indefinitely.

  8. Modal testing - Wikipedia

    en.wikipedia.org/wiki/Modal_testing

    Modal impact hammer with interchangeable tips and accompanying temporal and frequency responses. An ideal impact to a structure is a perfect impulse, which has an infinitely small duration, causing a constant amplitude in the frequency domain; this would result in all modes of vibration being excited with equal energy. The impact hammer test is ...

  9. Duhamel's integral - Wikipedia

    en.wikipedia.org/wiki/Duhamel's_integral

    If a system initially rests at its equilibrium position, from where it is acted upon by a unit-impulse at the instance t=0, i.e., p(t) in the equation above is a Dirac delta function δ(t), () = | = =, then by solving the differential equation one can get a fundamental solution (known as a unit-impulse response function)