The Collier Report of U.S. Government Contracting

Sampling of Federal Government Funding Actions/Set Asides

In order by amount of set aside monies.

• $44,100 - Monday the 27th of August 2012
  Department Of Navy
  NAVSUP FLT LOG CTR SAN DIEGO
  TUITION AND FEES

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• $200,000 - Monday the 5th of March 2012
  Washington Headquarters Services
  WASHINGTON HEADQUARTERS SERVICES
  COURT ROOM SUPPORT

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• $159,000 - Wednesday the 21st of December 2011
  Department Of Navy
  NAVSUP FLT LOG CTR SAN DIEGO
  TUITION AND FEES

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• $106,412 - Friday the 29th of April 2016
  National Aeronautics And Space Administration
  NASA SHARED SERVICES CENTER
  LABORATORY MEASUREMENTS OF SPECTRAL LINE PARAMETERS IN THE 2NU3 (1.67 ##M) BAND OF 12CH4 ATMOSPHERIC RETRIEVALS OF METHANE ABUNDANCE FROM GROUND-BASED OBSERVATIONS USING A FOURIER TRANSFORM SPECTROMETER IN THE INFRARED (FT-IR) HAVE BEEN ATTEMPTED TO ACHIEVE SUB-1% PRECISION [WARNEKE ET AL. 2006; SUSSMANN ET AL. 2011]. FOR THIS, ITS SPECTROSCOPIC LINE PARAMETERS SHOULD BE KNOWN WITH CORRESPONDING SUB-1% PRECISION (ALMOST AN ORDER OF MAGNITUDE HIGHER THAN CURRENTLY AVAILABLE). THIS STRINGENT REQUIREMENT IS CRUCIAL IN THE NEAR-INFRARED AS WELL, WHERE THE 1.67 MICRON BAND OF METHANE IS ONE OF THE DOMINANT OPACITY SOURCES. HOWEVER, SPECTROSCOPIC LINE PARAMETERS OF METHANE INTENSITIES IN THE NEAR INFRARED HAVE SIGNIFICANTLY POOR PRECISION (~ 3% IN HITRAN) AND HENCE CANNOT MEET THE REQUIREMENTS FOR GROUND-BASED (NDACC, HTTP://WWW.NDSC.NCEP.NOAA.GOV/; TCCON, ETC.) AND SATELLITE OBSERVATIONS (GOSAT, SCIAMACHY, ETC.). FIG.1. (SHOWN IN THE BODY OF THE PROPOSAL) IS A COMPOSITE SPECTRUM OF 12CH4 AND 13CH4 RECORDED AT 0.0055 CM-1 WITH THE JPL BRUKER 125 HR IFS. WE PROPOSE TO MEASURE SPECTROSCOPIC LINE PARAMETERS OF 12CH4 IN THE 2NU3 BAND (~ 1.67 MICRON) IN THE 5700-6300 CM-1 REGION (FIG.1) WHICH INCLUDE LINE POSITIONS, LINE INTENSITIES, LINE SHAPE PARAMETERS (SELF- AND AIR-PRESSURE BROADENED HALF WIDTHS, AND SELF- AND AIR-PRESSURE INDUCED LINE SHIFTS), AND THEIR TEMPERATURES DEPENDENCES. OUR PROPOSED INVESTIGATION OF THE 12CH4 BAND FOCUSES ON NEW LABORATORY MEASUREMENTS AND ANALYSIS OF THE CONGESTED 5700-6300 CM-1 SPECTRAL REGION WHERE RECENT HIGH SPECTRAL RESOLUTION LABORATORY STUDIES PROVIDE VALUABLE INFORMATION ON LINE POSITIONS, LOWER STATE ENERGIES, QUANTUM ASSIGNMENTS, AND LINE INTENSITIES. HOWEVER, ACCURATE SPECTRAL LINE SHAPE PARAMETERS OF INDIVIDUAL SPECTRAL COMPONENTS IN SEVERELY OVERLAPPED J MANIFOLDS ARE NOT PRESENTLY AVAILABLE. COMPLETE AND ACCURATE INFORMATION ON LINE SHAPE PARAMETERS FOR AIR BROADENING AS A FUNCTION OF TEMPERATURE IS CRITICAL NOT ONLY FOR THE CORRECT INTERPRETATION OF THE OBSERVED ATMOSPHERIC SPECTRUM BUT ALSO FOR THE DEVELOPMENT OF A RELIABLE THEORETICAL MODEL. TO ACHIEVE THE DESIRED HIGH PRECISION MEASUREMENTS, WE WILL OBTAIN A SERIES OF HIGH-RESOLUTION SPECTRA OF 12C-ENRICHED CH4 AND ITS MIXTURE IN DRY AIR USING A FOURIER TRANSFORM SPECTROMETER (FTS) AT JPL FOR VARIOUS GAS PRESSURES AND TEMPERATURES (190-296 K). A FEW ADDITIONAL LOW PRESSURE SPECTRA OF 13CH4 AND CH3D WILL ALSO BE RECORDED AND INCLUDED IN THE ANALYSIS, SINCE THEIR ABSORPTION FEATURES ARE EXPECTED TO INTERFERE WITH 12CH4 TRANSITIONS AS SHOWN IN FIG. 1 (WITH 13CH4). SPECTROSCOPIC LINE PARAMETERS WILL SIMULTANEOUSLY BE RETRIEVED FROM ALL THE SPECTRA USING OUR WELL ESTABLISHED MULTISPECTRUM NONLINEAR LEAST SQUARES FITTING TECHNIQUE DEVELOPED AT THE COLLEGE OF WILLIAM AND MARY. PRIOR STUDIES ON METHANE AND OTHER MOLECULAR SPECIES HAVE DEMONSTRATED THAT THE STANDARD VOIGT LINE SHAPE MUST BE MODIFIED TO INCLUDE LINE MIXING, PARTICULARLY FOR THE DESIRED SUB-1% PRECISION. LINE MIXING AND ITS TEMPERATURE DEPENDENCES WILL ALSO BE QUANTITATIVELY DETERMINED.

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