âº US informal sometimes used by a black man to address or refer to another black man. âº used as the title of a man, such as a monk, who belongs to a religious organization: Brother Michael and Brother John were deep in conversation. [ as form of address ] Bless you, Brother.
The term Fourier transform infrared spectroscopy originates from the fact that a Fourier transform (a mathematical process) is required to convert the raw data into the actual spectrum.For other uses of this kind of technique, see Fourier transform spectroscopy.n a Michelson interferometer adapted for FTIR, light from the polychromatic infrared source, approximately a black-body radiator, is collimated and directed to a beam splitter. Ideally 50% of the light is refracted towards the fixed mirror and 50% is transmitted towards the moving mirror.
PPIRS assists acquisition officials by serving as the single source for contractor past performance data. PPIRS consists of three components, Report Card (RC), Statistical Reporting (SR) and Federal Awardee Performance and Integrity Information System (FAPIIS).