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Three mechanisms for the creep of silicon nitride are discussed with regard to the microstructural variables that control creep. During the initial stages of...
D K. Kim, Yeon-Gil G. Jung, I M. Peterson, Brian R. Lawn
Contact damage modes in cyclic loading with spheres are investigated in three relatively brittle ceramics, soda-lime glass, porcelain and fine-grain silicon...
Bruce D. Ravel, Eric J. Cockayne, E Newville, K M. Rabe
The narrow band-gap semiconductor Pb 1-xGe xTe has a low-temperature ferroelectric rhombohedral phase whose average structure is a distorted rocksalt structure...
Marvin A. Hamstad, Agnes O'Gallagher, John M. Gary
The requirements for dynamic finite element modeling of the source dynamics and wave propagation of buried acoustic emission point sources were examined...
The globalization of manufacturing and construction markets is broadening the range of inspection standards that might be specified for a product, and we should...
The kinetics of depletion-driven size segregation in confined binary mixtures of nearly-hard-sphere colloids are studied with video microscopy. During the...
A Topp, Barry J. Bauer, T J. Prosa, R L. Scherrenberg, Eric J. Amis
Solutions of the poly(propylene imine) dendrimers DAB-dendr-(NH 2) 23 and DAB-dendr-(NH 2) 64 in methanol are investigated with small angle neutron scattering...
We discuss collective excitations of a trapped dilute Fermi gas within a hydrodynamic approximation. Analytical results are derived for both high- and low...
B Mate, C Lugez, Gerald T. Fraser, Walter J. Lafferty
Collision-induced absorption coefficients for the 1.27 υm band of O 2 have been measured at a resolution of 0.5 cm -1 and an optical pathlength of L = 84 m...
T C. Killian, S Kulin, S D. Bergeson, Luis A. Orozco, C R. Orzel, S L. Rolston
We report the creation of an ultracold neutral plasma by photoionization of laser-cooled xenon atoms. The charge carrier density is as high as 2 x 10 9 cm -3...
Carl J. Williams, Eite Tiesinga, Paul S. Julienne, H Wang, W C. Stwalley, P L. Gould
We report threshold scattering properties for 39K(f = 1) atoms obtained from analysis of experimental photoassociation spectra of the purely long-range 39K 21 u...
Matter waves can now be amplified in the same way that a laser amplifies light. Such matter-wave amplifiers will be essential for future developments in atom...
S Bergeson, A Balakrishnan, K G. Baldwin, Thomas B. Lucatorto, J P. Marangos, T J. McIlrath, Thomas R. O'Brian, S L. Rolston, Craig J. Sansonetti, J Wen, N Westbrook, C H. Cheng, E E. Eyler
High resolution laser-based measurements of energy levels have spurred the development and refinement of quantum electrodynamic calculations. We have extended...
Commercial color measuring instruments (colorimeters and spectroradiometers) are currently used in a number of product development and control environments, as...
Lu Deng, Edward W. Hagley, J Denschlag, J E. Simsarian, M Edwards, Charles W. Clark, Kristian Helmerson, S L. Rolston, William D. Phillips
We analyze and experimentally demonstrate a new (temporal) Talbot effect, where a pulsed phase grating is applied to a cloud of cold atoms (Bose-Einstein...
We have constructed and demonstrated a high performance optical phase locked loop between two cw Nd: YAG lasers. The feedback system is relatively simple...
We have constructed and demonstrated a high-performance optical phase-locked loop between two cw ND-YAG lasers. The feedback system is relatively simple...
C. Dherin, J. P. Radicella, M. Dizdaroglu, S Boiteux
We have investigated the substrate specificity of the major nuclear form of the human Ogg1 protein, referred as α-hOgg1, for excision of damaged bases from DNA...
Vladimir L. Orkin, E Villenave, Robert E. Huie, Michael J. Kurylo III
The rate constants for the reactions of OH radicals with the fluorinated ethers, CHF 2-OCHF 2 (HFOC-134), and CF 3CH 2-O-CH 2CF 3 (HFOC-356mff), were measured...
We report a new method for controlling the spatial distribution of reactive chemical species in a parallel-plate reactor, by means of a variable-impedance load...