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- Video transmission for third generation wireless communication systems
- multimedia communications; third generation mobile systems; WCDMA; wireless video
- This paper presents a twin-class unequal protected video transmission system over wireless channels. Video partitioning based on a separation of the Variable Length Coded (VLC) Discrete Cosine Transform (DCT) coefficients within each block is...
- Journal of Research of NIST and Predecessor Publications
- Vibrational spectra of tetrafluoroethylene and tetrachloroethylene
- Journal of Research of NIST and Predecessor Publications
- Vibrational frequencies of semirigid molecules: a general method and values for ethylbenzene
- Journal of Research of NIST and Predecessor Publications
- Vibrational constants of acetylene-d2
- Journal of Research of NIST and Predecessor Publications
- Vibrational branching ratios and asymmetry parameters in the photoionization of CO2 in the region between 650 angstrom and 840 angstrom
- asymmetry; autoionization; branching ratios; parameters; photoelectron spectra
- The vibrational branching ratios and asymmetry parameters for CO2 have been determined in the wavelength region of 650 Angstrom to near the ionization onset at about 840 Angstrom. The study was performed using synchrotron radiation from the...
- Journal of Research of NIST and Predecessor Publications
- Vibrational and electronic oscillator strengths of LiO
- A2S; electronic transition probabilities; Hartree-Fock; LiO, vibrational transition probabilities; X2II
- Electronic energies and wave functions of ground and excited states of LiO are calculated in the Hartree-Fock approximation. The vibrational oscillator strengths of the X2II and A2S+ valence states are calculated for v = 0 to 1 and 1 to 2...
- Journal of Research of NIST and Predecessor Publications
- Vibration-rotation structure in absorption bands for the calibration of spectrometers from 2 to 16 microns
- Absorption bands; calibration; microns; spectrometer
- Suitable bands of common gases have been tabulated and remeasured wherever necessary from 2 to 16 microns to obtain an accuracy of about 0.03 cm-1 throughout the region and to provide good calibrating points at frequent intervals. Some 600...
- Journal of Research of NIST and Predecessor Publications
- Vibration-rotation bands of carbonyl sulfide
- bands; carbonyl; constants; sulfide
- Thirty-two infrared absorption bands of carbonyl sulfide (OCS) have been measured and are reported here, seventeen for the first time. Seven absorption bands due to isotopic molecules were also measured. Rotational constants have bee n determined...
- Journal of Research of NIST and Predecessor Publications
- Vibration-rotation bands of ammonia: 1. The combination bands square-root2 + (square-root1,square-root3)
- Journal of Research of NIST and Predecessor Publications
- Vibration-responsive automatic stopping device for use with fatigue-testing machines
- Photographs; History; Metrology; Metals; Metallurgy; Instruments
- Close-up of the vibration-responsive automatic stopping device recently developed at the National Bureau of Standards for use with fatigue-testing machines. A steel ball is balanced on a three-pronged pedestal, which is fastened to one of the...
- NBS-NIST Divisions, Offices, and Programs
- Vibration Pickup Calibrator
- NBS-NIST Technical Series Publications
- Vibration of Telephone and Power Lines
- NBS-NIST Technical Series Publications
- Vibration Generator for Electron Tubes
- NBS-NIST Technical Series Publications
- Vibration Galvanometer
- This vibration galvanometers were used in the Inductance and Capacitance Section as early as 1911. It is probably of Wiens design and have tiny bar magnets cemented to the back of the mirror. The winding is on a split toroid core of white plastic.
- NIST Museum Artifacts
- Vibration Galvanometer
- This galvanometer is inscribed Duddells Patent No. 1778, 1908. Walder Bros. & Co. Westminster No. 28487. It is apparently a vibration galvanometer of the moving coil type. The mirror is in the shape of a narrow rectangle and the length and tension...
- NIST Museum Artifacts
- Vibrating Reed Galvanometer
- Galvanometers of this type were used in all precise calibration of standard voltage transformers at the National Bureau of Standards, now the National Institute of Standards and Technology, from 1919 until about 1945, when electronic methods were...
- NIST Museum Artifacts
- Vibrating board for air speed meters and oil and air pressure gauges
- History; Photographs; Metrology; Instruments; Aeronautical instruments
- This image is part of the Aeronautic Instruments collection. The Aeronautic Instruments collection depicts the instruments developed by the aeronautic instruments program at the National Bureau of Standards (NBS). Included are photographs of...
- Historic Images
- Via satellite, NBS experimentally broadcasts reliable day, hour, minute, and second time signals spanning 40 percent of the world
- Photographs; History; Metrology; Technology; Pictorial works; Instruments
- This image is from the Annual Report FY1975 collection. The Annual Report FY1975 collection contains photographic examples of the activities and accomplishments of the National Bureau of Standards (NBS) during the fiscal year which ended June 30,...
- Historic Images
- VHF radio propagation data for the Cedar Rapids-Sterling, Anchorage-Barrow, and Fargo-Churchill test paths, April 1951 through June 1958
- Journal of Research of NIST and Predecessor Publications
- $VHF and UHF signal characteristics observed on a long knife-edge diffraction path$
- VHF and UHF signal characteristics observed on a long knife-edge diffraction path
- Journal of Research of NIST and Predecessor Publications

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