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  2. Differential dynamic microscopy - Wikipedia

    en.wikipedia.org/wiki/Differential_dynamic...

    Differential dynamic microscopy (DDM) is an optical technique that allows performing light scattering experiments by means of a simple optical microscope. [ 1 ] [ 2 ] DDM is suitable for typical soft materials such as for instance liquids or gels made of colloids , polymers and liquid crystals but also for biological materials like bacteria and ...

  3. Repeated measures design - Wikipedia

    en.wikipedia.org/wiki/Repeated_measures_design

    Repeated measures design is a research design that involves multiple measures of the same variable taken on the same or matched subjects either under different conditions or over two or more time periods. [1] For instance, repeated measurements are collected in a longitudinal study in which change over time is assessed.

  4. DDM - Wikipedia

    en.wikipedia.org/wiki/DDM

    Difference in the Depth of Modulation, an amplitude modulation method used in the Instrument Landing System; Deutsches Dampflokomotiv-Museum, the German Steam Locomotive Museum; Dubbeldeks Materieel, a class of trains in the Netherlands; Derrick Drilling Machine, or Top drive; Dyson Digital Motor, a two-pole switched reluctance motor

  5. Experience sampling method - Wikipedia

    en.wikipedia.org/wiki/Experience_sampling_method

    Moreover, by using the experience sampling method different research questions can be analyzed regarding the use of mobile devices in research. Following on from this, Stieger and colleagues [12] used the experience sampling method to show that smartphones can be used to transfer computer-based tasks (CBTs) from the lab to the field.

  6. Difference in the depth of modulation - Wikipedia

    en.wikipedia.org/wiki/Difference_in_the_Depth_of...

    DDM is usually expressed in percentage but may also be expressed in microamperes. [citation needed] The two individual audio modulation frequencies and their associated sidebands are 90 and 150 Hz. The DDM for a localizer at the outer extremity of the course sector is 15.5% or an electric current equivalent of 150 microamperes full scale ...

  7. Spike-timing-dependent plasticity - Wikipedia

    en.wikipedia.org/wiki/Spike-timing-dependent...

    If an input spike tends, on average, to occur immediately after an output spike, then that particular input is made somewhat weaker hence: "spike-timing-dependent plasticity". Thus, inputs that might be the cause of the post-synaptic neuron's excitation are made even more likely to contribute in the future, whereas inputs that are not the cause ...

  8. List of abbreviations in oil and gas exploration and production

    en.wikipedia.org/wiki/List_of_abbreviations_in...

    aMDEA – activated methyldiethanolamine; AMS – auxiliary measurement service log; auxiliary measurement sonde (temperature) AMSL – above mean sea level; AMI – area of mutual interest; AMV – annulus master valve [4] ANACO – analysis of core logs report; ANARE – analysis report; ANSI - American National Standards Institute; AOF ...

  9. Charged aerosol detector - Wikipedia

    en.wikipedia.org/wiki/Charged_Aerosol_Detector

    The charged aerosol detector (CAD) is a detector used in conjunction with high-performance liquid chromatography (HPLC) and ultra high-performance liquid chromatography (UHPLC) to measure the amount of chemicals in a sample by creating charged aerosol particles which are detected using an electrometer.