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M Ben Ftima, Fahim H. Sadek, S El-Borgi, Michael A. Riley
This paper presents a robust static output feedback H(infinity) algorithm for control of hysteretic civil engineering structures subjected to earthquake ground
Theodore V. Vorburger, Ronald G. Dixson, Jun-Feng Song, Thomas Brian Renegar, Joseph Fu, Ndubuisi George Orji, V W. Tsai, E. C. Williams, H Edwards, D Cook, P West, R Nyffenegger
MotivationSemiconductor wafers and many types of optical elementsrequire ultra-smooth surfaces in order to functionas specifiedExamples:Laser gyro mirrors with
P V. Bayly, J E. Halley, Matthew A. Davies, Jon R. Pratt
The stability of interrupted cutting is examined for the case in which the tool is in contact with the work piece for a small, but finite, fraction of the tooth
David B. Newell, Jon R. Pratt, John A. Kramar, Douglas T. Smith, L Feeney, Edwin R. Williams
Although nanonewton force measurements are commonplace in industry, no National Measurement Institute supports a link to the International System of Units (SI)
J C. Ziegert, D Rea, Steven D. Phillips, Bruce R. Borchardt
A new machine for the rapid calibration of ball bars has been built. By means of comparisons to CMM measurements, it has been shown to work as an accurate
David A. Wollman, Sae Woo Nam, Gene C. Hilton, Kent D. Irwin, David A. Rudman, Norman F. Bergren, Steven Deiker, John M. Martinis, Martin Huber, Dale Newbury
We present the current performance of the prototype high-resolution microcalorimeter energy-dispersive spectrometer (υcal EDS) developed at NIST for x-ray
Thomas F. Wunsch, Joseph R. Kinard Jr., Ronald R. Manginell, Thomas E. Lipe Jr., O. P. Solomon, K. C. Jungling
New standards for ac current and voltage measurements, thin-film multijunction thermal converters (MJTCs), have been fabricated using thin-film and micro
Amanda N. Goyettes, Yicheng Wang, James K. Olthoff
Positive ion bombardment plays an essential role in plasma processing, influencing etch rates, materials selectivity and etching profiles. Experimental
Presently NIST uses a voltage calibration path to maintain the U.S. legal volt and provide for the dissemination of an internationally consistent, accurate
The dielectric properties of acrylic resin composites filled with BaTiO 3 have been evaluated in the broad frequency range. These materials were used as models
The broadband dielectric relaxation of a BaTiO3-polymer composite film was studied. The complex dielectric constant data from 10 -4 Hz to 10 10 Hz reveals the
Poly(amidoamine) (PAMAM) dendrimers are used to create organic-inorganic hybrid colloids in aqueous solution. The formation of gold colloids upon reduction of a
A Sen gupta, F Garcia nava, Craig Nelson, David A. Howe, F L. Walls
Following our earlier work on a new approach to synthesising the Cs hyperfine frequency of 9.192 GHz, we describe developments on its further refinements. The
The appearance of noise on a display is an important usability issue. Sources of noise include electrical interference, display driver artifacts, resampling