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Displaying 4826 - 4850 of 13217

Salt Marsh Recovery and Oil Spill Remediation After In-Situ Burning: Effects of Water Depth and Burn Duration

January 1, 2002
Author(s)
I. A. Mendelssohn, Q. Lin, K. Carney, Nelson P. Bryner, William D. Walton
… wetland management procedures would be highly valued. In-situ burning of oiled wetlands potenually provides such a … Environmental Science and Technology … oil spills, in situ burning, water, statistical analysis … Salt Marsh Recovery and Oil Spill Remediation After In-Situ Burning: Effects of Water Depth and Burn Duration …

All-NbN Digital-to-Analog Converters for a Programmable Voltage Standard

November 21, 2001
Author(s)
Hirotake Yamamori, M. Itoh, H. Sasaki, A. Shoji, Samuel Benz, Paul Dresselhaus
… with a 16 GHz microwave signal at 4.2 and 10 K, resulting in constant-voltage steps with heights larger than 2 mA. The … for the DAC was 136 mV, indicating that all 4096 junctions in the DAC yielded a voltage corresponding to the microwave … Superconductor Science and Technology …

Distribution and Retention of 137 Cs in Sediments at the Hanford Site, Washington

September 1, 2001
Author(s)
J P. McKinley, Cynthia J. Zeissler, J M. Zachara, R J. Serne, Richard M. Lindstrom, H T. Schaef, R D. Orr
… many of the single-shell storage tanks at the Hanford Site in southeastern Washington. The leakage was into sandy … and smectite, along with smectite and kaolinite in the clay-size fraction. A phosphor-plate autoradiograph … migrating fluids would likely sorb to nearby mica clasts in downgradient sediments. …

Measuring the Frequency Response of Gigabit Chip Photodiodes

September 1, 2001
Author(s)
Paul D. Hale, Tracy S. Clement, Dylan F. Williams, E. Balta, N. D. Taneja
… frequency response fo gigabit chip photodiodes embedded in simple test fixtures. The procedure is unique because we make the measurements in the time-domain using a calibrated oscilloscope and we … Journal of Lightwave Technology …

Surface Acoustic Wave Methods to Determine the Anisotropic Elastic Properties of Thin Films

September 1, 2001
Author(s)
Donna C. Hurley, Vinod K. Tewary, A J. Richards
… methods to measure the elastic properties of thin films. In this approach, surface acoustic waves (SAWs) were … ratio fo the films as determined by our methods were in good agreement with literature values for these materials in bulk form. Results from these samples are also used to …

Porous Thin Films for Thermal Barrier Coatings

April 1, 2001
Author(s)
K D. Harris, D Vick, E J. Gonzalez, T Smy, K Robbie, M J. Brett
… A new approach is described in the deposition of thin films for thermal barrier applications. In a physical vapour deposition experiment, extreme … were added. By depositing porous layers and capping layers in an alternating fashion, a new, porous, multilayered …

Inelastic Neutron Scattering From Filled Elastomers

December 1, 2000
Author(s)
A Nakatani, R Ivkov, P Papanek, H Yang, M Gerspacher
… be used to characterize the local dynamics of polymers in the presence and absence of fillers. Of particular … Rubber Chemistry and Technology …

Abrasive Machining of Glass-Ceramics With a Dental Handpiece

July 1, 2000
Author(s)
X Dong, L Yin, S Jahanmir, L K. Ives, E D. Rekow
… of the glass-ceramic, the size of diamond grit in the burs, and load applied to the burs during machining … The use of couarse burs does not necessarily rexult in high material removal rates but increases the extent of … is strongly dependent upon coarnes the diamond particles in the burs. …

The Role of Periodic Interferometer Errors in the Calibration of Capacitance Displacement Sensors for Nanometrology Applications

January 1, 2000
Author(s)
R Koning, Ronald G. Dixson, Joseph Fu, Theodore V. Vorburger
… the periodic errors of optical heterodyne interferometers in displacement measurements is fairly well understood, their … of a capacitance displacement sensor, which is integrated in a linear piezoelectric transducer for nanometrology applications, over displacement ranges in the sub micrometer range. Assuming a linear dependence of …

Coplanar Transmission Lines with Meandering Center Conductors in Y-Ba-Cu-O/Au Bilayers

December 31, 1999
Author(s)
C Weber, Ronald H. Ono, James Booth, Leila R. Vale, Samuel Benz, A. M. Klushin, H. Kohlstedt, C. Buchal, R. Semerad
… meandering coplanar microwave transmission lines patterned in Y-Ba-Cu-O/Au bilayers on yttria-stablized zirconia and … The microwave properties of the lines were measured in the range 0-40 GHz at 76 K, using on-chip … calibrations. We discuss the measured attenuation in terms of conductor losses in the bilayers and show to what …

Large-Area YBa 2 Cu 3 O 7-x Bolometers on Si Substrates

December 31, 1999
Author(s)
Leila R. Vale, Ronald H. Ono, Donald G. McDonald, Robert J. Phelan
… to perform optical measurements of the bolometer in the cryostat. Optical measurements show an electrical … Superconductor Science and Technology …

Ionizing Radiation Induced Degradation of a Tetrachlorobiphenyl in Transformer Oil

November 1, 1999
Author(s)
M Chaychian, Joseph Silverman, M I. Al-Sheikhly, Dianne L. Poster, Pedatsur Neta
… degradation of 2,2',6,6'-tetrachlorobiphenyl (PCB 54) in transformer oil is achieved by ionizing radiation without … PCB 54 (0.27 mg/g) with a dose of 200 kGy results in complete (> 99%) destruction of the PCB. Analysis of … of reductive degradation of chlorinated biphenyls in transformer oil is studied by pulse radiolysis. The oil …
Displaying 4826 - 4850 of 13217
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