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2. Actogram - Wikipedia

   en.wikipedia.org/wiki/Actogram

   One of the first examples of actograms being used in circadian biology was by Maynard Johnson. [2] Johnson compared the daily rhythms of different species of mice. [2] One of the benefits noted about the actogram as a representation of animal activity was that it was easy to see rhythms in activity.

3. Mode conversion - Wikipedia

   en.wikipedia.org/wiki/Mode_conversion

   Mode conversion occurs when a wave encounters an interface between materials of different impedances and the incident angle is not normal to the interface. [1] Thus, for example, if a longitudinal wave from a fluid (e.g., water or air) strikes a solid (e.g., steel plate), it is usually refracted and reflected as a function of the angle of incidence, but if some of the energy causes particle ...

4. Amplitude - Wikipedia

   en.wikipedia.org/wiki/Amplitude

   Peak-to-peak amplitude (abbreviated p–p or PtP or PtoP) is the change between peak (highest amplitude value) and trough (lowest amplitude value, which can be negative). With appropriate circuitry, peak-to-peak amplitudes of electric oscillations can be measured by meters or by viewing the waveform on an oscilloscope .

5. Longitudinal wave - Wikipedia

   en.wikipedia.org/wiki/Longitudinal_wave

   "Longitudinal waves" and "transverse waves" have been abbreviated by some authors as "L-waves" and "T-waves", respectively, for their own convenience. [1] While these two abbreviations have specific meanings in seismology (L-wave for Love wave [2] or long wave [3]) and electrocardiography (see T wave), some authors chose to use "ℓ-waves" (lowercase 'L') and "t-waves" instead, although they ...

6. Oscillation (cell signaling) - Wikipedia

   en.wikipedia.org/wiki/Oscillation_(cell_signaling)

   One of the most common forms of biological oscillation is genetic oscillation, which can take place when a transcription factor binds and represses its own promoter.This type of regulatory system is able to successfully describe the NFkB-IkB and p53-Mdm52 biological oscillating systems.

7. Longitudinal mode - Wikipedia

   en.wikipedia.org/wiki/Longitudinal_mode

   The first six longitudinal modes of a plane-parallel cavity. A longitudinal mode of a resonant cavity is a particular standing wave pattern formed by waves confined in the cavity. The longitudinal modes correspond to the wavelengths of the wave which are reinforced by constructive interference after many reflections from the cavity's reflecting ...

8. Slowly varying envelope approximation - Wikipedia

   en.wikipedia.org/wiki/Slowly_varying_envelope...

   In physics, slowly varying envelope approximation [1] (SVEA, sometimes also called slowly varying asymmetric approximation or SVAA) is the assumption that the envelope of a forward-travelling wave pulse varies slowly in time and space compared to a period or wavelength.

9. Acoustic wave - Wikipedia

   en.wikipedia.org/wiki/Acoustic_wave

   An acoustic wave is a mechanical wave that transmits energy through the movements of atoms and molecules. Acoustic waves transmit through fluids in a longitudinal manner (movement of particles are parallel to the direction of propagation of the wave); in contrast to electromagnetic waves that transmit in transverse manner (movement of particles at a right angle to the direction of propagation ...