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A Remijan, J M. Hollis, Lewis E. Snyder, P R. Jewell, Francis J. Lovas
We report the detection of a new interstellar methylpolyyne, CH3C6H (methyltriacetylene) with the 100-m Green Bank Telescope (GBT). Ten spectral lines of this
Ray Radebaugh, Michael A. Lewis, Ercang Lou, John M. Pfotenhauer, G. F. Nellis, L. F. Schunk
The efficiency of regenerative refrigerators is generally maximized when the pressure and flow are in phase near the midpoint of the regenerator. Such a phase
The size of Stirling and Stirling-type pulse tube cryocoolers is dominated by the size of the pressure oscillator. Such cryocoolers typically operate at
Magnetic metallic glasses, having large magnetic moments and high Curie Temperatures (TC), have not been widely studied as magnetic refrigerants. In this study
Robert D. Shull, Virgil Provenzano, Alexander J. Shapiro, A Fu, M W. Lufaso, E Karapetrova, G Kletetschka, V Mikula
It was shown that adding one atomic percent Fe to Gd5Ge2Si2 greatly reduced its large hysteresis losses, broadened the magnetic entropy change, ?Sm, versus
Our recent research on amorphous calcium phosphate (ACP) dental materials has resulted in biocompatible composites with high remineralizing ability and moderate
Calcium phosphate cement (CPC) can conform to complex cavity shapes and set in situ to form bioresorbable hydroxyapatite. The aim of this study was to introduce
The development of technical equations of state using the 12-parameter Span-Wagner functional form for four siloxanes is presented in two parts. The fluids
In this work, 1 υm thick FeCeo films with -320 MPa compressive stress and FeCo/NiFe films with 600 MPa tensile stress were patterened into 5υm x 20 υm elements
B C. Nelson, Katherine E. Sharpless, Lane C. Sander
Two independently developed liquid chromatography (LC) methods for the quantitative determination of biotin in multivitamin/multielement tablets (NIST Standard
Alan Mink, Xiao Tang, Lijun Ma, Anastase Nakassis, Barry J. Hershman, Joshua C. Bienfang, David H. Su, Ronald F. Boisvert, Charles W. Clark, Carl J. Williams
NIST has developed a high-speed quantum key distribution (QKD) test bed incorporating both free-space and fiber systems. These systems demonstrate a major
X M. Cheng, Valerian I. Nikitenko, Alexander J. Shapiro, Robert D. Shull, C L. Chien
Unusual magnetization reversal of [Co(4 )/Pt(10 )]4 multilayers with perpendicular magnetic anisotropy has been revealed macroscopically by magnetometry
Brian B. Maranville, Robert McMichael, Sudook A. Kim, Ward L. Johnson, C A. Ross, J Cheng
We have used trapped spinwave or edge modes of magnetic precession to probe the magnetic environment near magnetic film edges magnetized perpendicular to the
Virgil Provenzano, B Baumgold, Robert D. Shull, Alexander J. Shapiro, Keiichi Koyama, Kazuo Watanabe, N K. Singh, K G. Suresh, A K. Nigam, S K. Malik
The structure and magnetocaloric properties of the Fe-doped HoTiGe compound were investigated by means of scanning electron microscopy (SEM), energy dispersive
Anne Dillon, A. H. Mahan, Rohit Deshpande, J. L. Alleman, Jeffrey Blackburn, P. A. Parillia, M. J. Heben, Chaiwat Engtrakul, K.E.H. Gilbert, Kevin M. Jones, Bobby To, S Lee, John H. Lehman
Hot-wire chemical vapor deposition (HWCVD) has been demonstrated as a simple economically scalable technique for the synthesis of a variety of nano-materials in
Chiara F. Ferraris, Jeffrey W. Bullard, Vincent A. Hackley
Particle size distribution (PSD) measurements are now routinely employed to characterize cement powders. A variety of techniques is available for this purpose
Curt A. Richter, Christina Hacker, Lee J. Richter, Oleg A. Kirillov, John S. Suehle, Eric M. Vogel
We present a correlation of the results of dc-current-voltage (IV) and ac-capacitance-voltage (CV) measurements with vibrational spectroscopy of Au/monolayer
A very stably dispersed magnetic fluid (Mother MF) and its 1000-times diluted solution were independently zero-field-cooled from room temperature to 5 K
We determine conditions for effective quantum control over internal and external degrees of freedom of polar alkali-metal molecules in optical lattices. We show
Jason Crain, Mark D. Stiles, Joseph A. Stroscio, Daniel T. Pierce
Gold deposited on Si(553) leads to self assembly of atomic chains, which are broken into finite segments by atomic defects. Scanning tunneling microscopy is
William F. Egelhoff Jr., Robert McMichael, Cindi L. Dennis, Mark D. Stiles, Alexander J. Shapiro, Brian B. Maranville, Cedric J. Powell
We have found that preoxidation of the bottom Co electrode in magnetic tunnel junctions (MTJs) very effectively suppresses orange-peel coupling. The result is a
Barry L. Zink, Kent D. Irwin, Gene C. Hilton, Joel Ullom, David P. Pappas
We briefly review the principles of a magnetic microcalorimeter x-ray detector and the requirements for fabricating an array of these sensors, which include a
In order to quantitatively investigate the interplay between shape anisotropy (magnetostatics) and exchange, patterned zigzag structures were prepared with
Joel N. Ullom, James A. Beall, William B. Doriese, William Duncan, S. L. Ferreira, Gene C. Hilton, Kent D. Irwin, Galen C. O'Neil, Carl D. Reintsema, Leila R. Vale, Barry L. Zink
Calorimeters that exploit the superconducting-to-normal transition are used to detect individual photons from near-infrared to γ-ray wavelengths. Across this
Dan Schmidt, William Duncan, Kent D. Irwin, Konrad Lehnert, Nathan A. Tomlin, Joel Ullom
Normal metal-insulator-superconductor tunnel junctions are candidates for large-format arrays of ultra-low noise equivalent power bolometers. Using a wafer
We report on a novel mechanism that allows for laser cooling of atoms that do not have a closed cycling transition. This mechanism is observed in a magneto
In his recent novel, State of Fear (HarperCollins, 2004), Michael Crichton questioned the connection between global warming and increasing atmospheric carbon