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Journals

Characteristic Impedance, Power, and Causality

Author(s)
Dylan F. Williams, Bradley K. Alpert
A new causal power-normalized waveguide equivalent-circuit theory determines uniquely both the magnitude and phase of the characteristic impedance of a...

Component Specifications for Robotics Integration

Author(s)
Elena R. Messina, John A. Horst, Thomas R. Kramer, Hui-Min Huang, John L. Michaloski
Robotics researchers have been unable to capitalize easily on existing software components to speed up their development e orts and maximize their system's...

Internal Friction and Creep-Recovery in Indium

Author(s)
H M. Ledbetter, N Sizova, Sudook A. Kim, H Kobayashi, S Sgobba, L Parrini
Using low-stress pseudoshear deformation, we measured the ambient-temperature creep-recovery behavior of polycrystalline indium.

Contact Fatigue in Silicon Nitride

Author(s)
S K. Lee, Brian R. Lawn
A study of contact fatigue in silicon nitride is reported. The contacts are made using WC spheres, principally in cyclic but also in static loading, and mainly...

Bond Lengths in Strained Semiconductor Alloys

Author(s)
Joseph C. Woicik
The bond lengths in a series of strained, buried Ga1-xInxAs thin-alloy films grown coherently on GaAs(001) and InP(001) substrates have been determined by high...

Critical Locus of Aqueous Solutions of Sodium Chloride

Author(s)
A A. Povodyrev, M A. Anisimov, Jan V. Sengers, W L. Marshall, Johanna Levelt Sengers
Experimental data reported in the literature indicate a strong dependence of the critical temperature of aqueous solutions of sodium chloride on salt...

The NIST Length Scale Interferometer

Author(s)
John S. Beers, William B. Penzes
The National Institute of Standards and Technology (NIST) interferometer for measuring graduated length scales has been in use since 1965. It was developed in...

Migdall Responds

Author(s)
Alan L. Migdall
I thank Duane Jaecks for pointing out earlier origins of the first of the correlated photon metrology applications described in my article - absolute detector...

The Local Structure of Ferroelectric Pb1-xGexTe

Author(s)
Bruce D. Ravel, Eric J. Cockayne, K M. Rabe
The narrow band-gap semiconductor Pb_{1-x}Ge_xTe has a low-temperature ferroelectric rhombohedral phase whose average structure is a distorted rock salt...

Tensile Creep and Rupture of Silicon Nitride

Author(s)
Ralph Krause, William E. Luecke, J French, B Hockey, Sheldon M. Wiederhorn
We have characterized the tensile creep, rupture lifetime, and cavitation behavior of a commercial, gas-pressure-sintered silicon nitride in the temperature...
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