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Displaying 56851 - 56875 of 74483

Nanofabrication of a two-dimensional array using laser-focused atomic deposition

June 27, 1995
Author(s)
R Gupta, Robert Celotta, Zeina J. Kubarych, J Mcclelland
Fabrication of a two-dimensional array of nanometer-scale chromium features on a silicon substrate by laser-focused atomic deposition is described. Features 13? 1 nm high and having a full-width at half maximum of 80? 10 nm are fabricated in a square array

Characteristics of Pool Fire Burning

June 20, 1995
Author(s)
Anthony P. Hamins, Takashi Kashiwagi, R Buch
The structure and energetics of hydrocarbons burning in a pool fire configuration are reviewed. Examples of non-hydrocarbons are also presented. The character and structure of pool fires are discussed with special regard to the flame shape, flame pulsation

Histopathological Reactions of Calcium Phosphate Cements in Periodontal Bone Defect

June 14, 1995
Author(s)
K Fujikawa, A Sugawara, S K. Kusama, S Murai, M Nishiyama, I Moro, Shozo Takagi, Laurence Chow
Previous studies have demonstrated that a calcium phosphate cement (CPC), consisting of tetracalcium phosphate (TTCP) and dicalcium phosphate anhydrous (DCPA), and a new calcium phosphate cement (N-CPC), consisting of [alpha]-tricalcium phosphate (TCP) and

Experiments at NIST with Trapped Ions: 3-D Zero-Point Cooling, Quantum Gates, Bragg Scattering, and Atomic Clocks

June 12, 1995
Author(s)
C Monroe, A S. Barton, James C. Bergquist, D J. Berkeland, John Bollinger, F C. Cruz, Wayne M. Itano, Steven R. Jefferts, Branislav M. Jelenkovic, B E. King, D M. Meekhof, J D. Miller, M E. Poitzsch, Joseph N. Tan
We have recently used stimulated-Raman transitions in the resolved sideband regime to cool single ions to the n = 0 zero-point energy. This has allowed realizations of the Jaynes-Cummings model interaction for atomic motion and a quantum controlled-NOT

A Neural Network Based Cell Controller for Automated Manufacturing Cells

June 1, 1995
Author(s)
Albert T. Jones, Yuehwern Yih, Ying Sun
In this paper, we describe an adaptive controller for automated manufacturing cells. The controller inputs desired performance targets and job characteristics and outputs tasks sequences for each piece of equipment in the cell. It contains an adjustment

Comparative Assembly Planning During Assembly Design

June 1, 1995
Author(s)
Gerard Kim
Traditionally, the problem of assembly planning concerns determining an order (linear or partial) of a product assembly with respect to geometric, physical, and resource constraints. Recent strides toward concurrent engineering have called for a need for

Computer Representations of Design Standards and Building Codes: U.S. Perspective.

June 1, 1995
Author(s)
Steven J. Fenves, K A. Reed, J H. Garrett, H Kiliccote, K H. Law
Standards representation and processing in the United States has had a long and interesting history of development. The work in the past has focussed primarily on representing a standard, evaluating the intrinsic properties of that represented standard
Displaying 56851 - 56875 of 74483
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