enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Ferroresonance in electricity networks - Wikipedia

    en.wikipedia.org/wiki/Ferroresonance_in...

    Ferroresonance or nonlinear resonance is a rare [1] type of resonance in electric circuits which occurs when a circuit containing a nonlinear inductance is fed from a source that has series capacitance, and the circuit is subjected to a disturbance such as opening of a switch. [2]

  3. Benchtop nuclear magnetic resonance spectrometer - Wikipedia

    en.wikipedia.org/wiki/Benchtop_nuclear_magnetic...

    A Benchtop nuclear magnetic resonance spectrometer (Benchtop NMR spectrometer) refers to a Fourier transform nuclear magnetic resonance (FT-NMR) spectrometer that is significantly more compact and portable than the conventional equivalents, such that it is portable and can reside on a laboratory benchtop. This convenience comes from using ...

  4. List of materials analysis methods - Wikipedia

    en.wikipedia.org/wiki/List_of_materials_analysis...

    ENDOR – Electron nuclear double resonance, see ESR or EPR; EPMA – Electron probe microanalysis; EPR – Electron paramagnetic resonance spectroscopy; ERD or ERDA – Elastic recoil detection or elastic recoil detection analysis; ESCA – Electron spectroscopy for chemical analysis see XPS; ESD – Electron stimulated desorption

  5. Electrical resonance - Wikipedia

    en.wikipedia.org/wiki/Electrical_resonance

    Electrical resonance occurs in an electric circuit at a particular resonant frequency when the impedances or admittances of circuit elements cancel each other. In some circuits, this happens when the impedance between the input and output of the circuit is almost zero and the transfer function is close to one.

  6. MIL-STD-810 - Wikipedia

    en.wikipedia.org/wiki/MIL-STD-810

    MIL-STD-810 is maintained by a Tri-Service partnership that includes the United States Air Force, Army, and Navy. [2] The U.S. Army Test and Evaluation Command, or ATEC, serves as Lead Standardization Activity / Preparing Activity, and is chartered under the Defense Standardization Program (DSP) with maintaining the functional expertise and serving as the DoD-wide technical focal point for the ...

  7. Dielectric spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Dielectric_spectroscopy

    This is a resonant process. Atomic polarization is intrinsic to the nature of the atom and is a consequence of an applied field. Electronic polarization refers to the electron density and is a consequence of an applied field.

  8. Impulse excitation technique - Wikipedia

    en.wikipedia.org/wiki/Impulse_excitation_technique

    Different resonant frequencies can be excited dependent on the position of the support wires, the mechanical impulse and the microphone. The two most important resonant frequencies are the flexural which is controlled by the Young's modulus of the sample and the torsional which is controlled by the shear modulus for isotropic materials.

  9. Resonance Raman spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Resonance_Raman_spectroscopy

    Typically, resonance Raman spectroscopy is performed in the same manner as ordinary Raman spectroscopy, using a single laser light source to excite the sample. The difference is the choice of the laser wavelength, which must be selected to match the energy of an electronic transition in the sample.