• mixtures
  • For the first time, chemo-resistive gas sensors are exposed to dynamic gas mixtures generated with several concentration levels at the sources. (mdpi.com)
  • We used a support vector machine as a tool to show that chemo-resistive transduction can be utilized to reliably identify chemical components in dynamic turbulent mixtures, as long as sufficient gas concentration coverage is used. (mdpi.com)
  • Fonollosa J, Rodríguez-Luján I, Trincavelli M, Vergara A, Huerta R. Chemical Discrimination in Turbulent Gas Mixtures with MOX Sensors Validated by Gas Chromatography-Mass Spectrometry. (mdpi.com)
  • Detection
  • Chemical detection systems based on chemo-resistive sensors usually include a gas chamber to control the sample air flow and to minimize turbulence. (mdpi.com)
  • molecules
  • The molecules are retained by the column and then elute (come off) from the column at different times (called the retention time), and this allows the mass spectrometer downstream to capture, ionize, accelerate, deflect, and detect the ionized molecules separately. (wikipedia.org)
  • spectra
  • These properties allow the thiocyanates to be easily distinguished from isothiocyanates whose NH3-CI mass spectra indicate considerable fragmentation but little, or no, adduct ion formation. (gc.ca)
  • While at Cornell, McLafferty assembled one of the first comprehensive data bases of mass spectra and pioneered artificial intelligence techniques to interpret GC/MS results. (wikipedia.org)
  • Interpretation of mass spectra. (wikipedia.org)
  • Probability based matching of mass spectra. (wikipedia.org)
  • time
  • The aim of this work was to assess the suitability of matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS) for routine heterotrophic monitoring in a drinking water treatment plant. (environmental-expert.com)
  • Science
  • The science payload mass is about 45 kg and consists of: The lander radio-science experiment (LaRa) will study the internal structure of Mars, and will make precise measurements of the rotation and orientation of the planet by monitoring two-way Doppler frequency shifts between the surface platform and Earth. (wikipedia.org)
  • Sources
  • Aiming at reproducing more realistic environments, we utilize a wind tunnel with two independent gas sources that get naturally mixed along a turbulent flow. (mdpi.com)