enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Fourier-transform infrared spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Fourier-transform_infrared...

    Such FTIR methods have long been used for plastics, and became extended for composite materials in 2018, when the method was introduced by Krauklis, Gagani and Echtermeyer. [20] FTIR method uses the maxima of the absorbance band at about 5,200 cm−1 which correlates with the true water content in the material.

  3. Two-dimensional infrared spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Two-dimensional_infrared...

    There are two main approaches to two-dimensional spectroscopy, the Fourier-transform method, in which the data is collected in the time-domain and then Fourier-transformed to obtain a frequency-frequency 2D correlation spectrum, and the frequency domain approach in which all the data is collected directly in the frequency domain.

  4. Electromagnetic absorption by water - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_absorption...

    Water vapor concentration for this gas mixture is 0.4%. Water vapor is a greenhouse gas in the Earth's atmosphere, responsible for 70% of the known absorption of incoming sunlight, particularly in the infrared region, and about 60% of the atmospheric absorption of thermal radiation by the Earth known as the greenhouse effect. [25]

  5. Infrared spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Infrared_spectroscopy

    The dispersive method is more common in UV-Vis spectroscopy, but is less practical in the infrared than the FTIR method. One reason that FTIR is favored is called "Fellgett's advantage" or the "multiplex advantage": The information at all frequencies is collected simultaneously, improving both speed and signal-to-noise ratio.

  6. Geology applications of Fourier transform infrared spectroscopy

    en.wikipedia.org/wiki/Geology_applications_of...

    The most commonly investigated volatiles are water and carbon dioxide as they are the primary volatiles to drive volcanic and magmatic processes. [4] The absorbance of total water and molecular water is approximately 3450 cm-1 and 1630 cm-1. [2] The peak height of the absorption bands for CO 2 and CO 3 2− are 2350 cm −1 and 1430 cm −1 ...

  7. 2 pilots in 'good condition' after military plane crash near ...

    www.aol.com/news/2-pilots-good-condition...

    A charter fishing boat for H&M Landing, a West Coast sportfishing company, pulled the pilots out of the water after they ejected from the plane before it crashed, NBC News reported. Frank Ursitti ...

  8. Nondispersive infrared sensor - Wikipedia

    en.wikipedia.org/wiki/Nondispersive_infrared_sensor

    A nondispersive infrared sensor (or NDIR sensor) is a simple spectroscopic sensor often used as a gas detector.It is non-dispersive in the fact that no dispersive element (e.g a prism or diffraction grating as is often present in other spectrometers) is used to separate out (like a monochromator) the broadband light into a narrow spectrum suitable for gas sensing.

  9. AOL reviewed: The Technivorm Moccamaster coffee maker is ...

    www.aol.com/lifestyle/technivorm-moccamaster...

    During testing, the Moccamaster aced what the ECBC calls the "four Ts" of coffee brewing: temperature, time, turbulence (even saturation), and total dissolved solids (a measure of coffee solubles ...