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- Viscosity of deuterium oxide and water in the range 5° to 125° C
- Journal of Research of NIST and Predecessor Publications
- Viscosity of a standard soda-lime-silica glass
- The viscosity of a soda-lime-silica glass has been measured at the National Bureau of Standards and seven other laboratories. Determinations were made in the range of 102 to 1015 poises. The rotating cylinder was used at the higher temperatures...
- Journal of Research of NIST and Predecessor Publications
- Viscosity Measurements Above 2000 degrees C
- NBS-NIST Technical Series Publications
- Viscosity and the extraordinary heat effects in glass
- Journal of Research of NIST and Predecessor Publications
- Viscosity and density of molten optical glasses
- Journal of Research of NIST and Predecessor Publications
- Viscosimetry of Gases at High Temperatures and Pressures
- NBS-NIST Technical Series Publications
- Viscometer Calibration Discontinued
- NBS-NIST Technical Series Publications
- Viscoelastometer for measurement of flow and elastic recovery.
- viscoelastometer, linear viscoelastic behavior, viscometer, rotor, temperature
- An account is given of the design, performance, and method of operation of a concentric cylinder rotational viscoelastometer. The instrument is designed for measurement of flow and time-dependent elastic recovery of viscous elastic liquids for...
- Journal of Research of NIST and Predecessor Publications
- Viscoelastic properties of polymer solutions
- Journal of Research of NIST and Predecessor Publications
- Viscoelastic behavior under large deformations
- BKZ theory; constant rate of strain; creep; elastic fluid; nonlinear behavior; polyisobutylene; recovery; stress; relaxation
- The BKZ elastic fluid theory is used to correlate experimental results obtained in biaxial strain and steady simple shear. With a heuristic potential function involving three material properties, excellent agreement is obtained between theory and...
- Journal of Research of NIST and Predecessor Publications
- Viscoelastic behavior of dental amalgam
- Amalgam; creep; dental; steady-state creep; stress-strain; transient creep; viscoelastic
- Measurements made on dental amalgam in tension indicate that amalgam exhibits three types of viscoelastic phenomena: (1) instantaneous elastic strain, (2) retarded elastic strain (transient creep), and (3) viscous strain (steady state creep). The...
- Journal of Research of NIST and Predecessor Publications
- $Virtual excitation and multiple scattering correction terms to the neutron index of refraction...$
- Virtual excitation and multiple scattering correction terms to the neutron index of refraction for hydrogen
- neutron interferometry; neutron optics; Nowak correction; refractive index; scattering length
- The neutron index of refraction is generally derived theoretically in the Fermi approximation. However, the Fermi approximation neglects the effects of the binding of the nuclei of a material as well as multiple scattering. Calculations by Nowak...
- Journal of Research of NIST and Predecessor Publications
- Virtual environment for manipulating microscopic particles with optical tweezers
- nanoscale assembly; nanotechnology; optical tweezers; virtual reality
- In this paper, virtual reality techniques are used to define an intuitive interface to a nanoscale manipulation device. This device utilizes optical methods to focus laser light to trap and reposition nano-to-microscopic particles. The underlying...
- Journal of Research of NIST and Predecessor Publications
- Views of an intermediate frequency amplifier employed in a manufacturing cost determination conducted by Mead Carney and Co.
- Photographs; History; Metrology; Electronic apparatus and appliances; Unit construction
- The cost of this unit (top), constructed in large numbers by conventional manual techniques employing conventional component parts, was compared with the costs of producing it by the manual techniques of Modular Design of Electronics (MDE) and by...
- Historic Images
- View of Washington, DC, looking eastward from NBS
- Photographs; History; Metrology
- This image is part of the Buildings on Old Campus collection.
- NBS-NIST Campuses, Buildings, and Labs
- View of the ion source and accelerator stack of the mass spectrometer
- Photographs; History; Metrology; Mass spectrometry
- This image is from the Photoionization Mass Spectroscopy Collection. The Photoionization Mass Spectroscopy Photographic Collection contains photos of the NBS photoionization mass spectrometer constructed by Vernon Dibleler and R.M. Reese and...
- Historic Images
- View of the Hydraulics Laboratory from the northwest
- Photographs; History; Metrology; Laboratories
- This image is part of the Buildings on Old Campus collection.
- NBS-NIST Campuses, Buildings, and Labs
- View of the Chemistry Building from the East Building
- Photographs; History; Metrology; 1910s
- This image is part of the Buildings on Old Campus collection.
- NBS-NIST Campuses, Buildings, and Labs
- View of the Automated Manufacturing Research Facility from above
- Photographs; History; Metrology; Manufacturing processes; Automation; Product engineering
- This image is part of the Automated Manufacturing Research Facility collection. In 1979 National Bureau of Standards (NBS) scientists realized the significance to American industry of a factory in which every part could be made automatically, with...
- Historic Images
- View of the audience at the Computer Center Open House
- Photographs; History; Metrology; Computer security
- A direct response to the Computer Security Act of 1987 could be seen in a joint NIST-National Security Agency project report published in September 1990. Instructed by the act to receive and review Federal security plans for unclassified but...
- Historic Images

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