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Journals

A Behavioral Model for Reducing the Complexity of Mixer Analysis and Design

May 11, 2005

Author(s)

Alessandro Cidronali, Giovanni Loglio, Jeffrey Jargon, Gianfranco Manes

This paper considers an approach for the behavioral modeling of the conversion mechanism in a nonlinear device suitable for the analysis of RF/microwave mixers...

Microwave Dielectric Properties of Single-Crystal KTaO₃ and SrTiO₃ at Cryogenic Temperatures

May 10, 2005

Author(s)

Richard G. Geyer, Jerzy Krupka, Billy F. Riddle, L. A. Boatner

Microwave dielectric properties of single-crystal incipient ferroelectrics, KTaO 3 and SrTiO 3, have been measured at cryogenic temperatures. Cylindrical...

Observation of Feshbach Resonances in an Ultracold Gas of ⁵²Cr

May 9, 2005

Author(s)

J Werner, A Griesmaier, S Hensler, J Stuhler, Tilman Pfau, Andrea Simoni, Eite Tiesinga

We have observed Feshbach resonances in elastic collisions between ultracold 52Cr atoms. This is the first observation of collisional Feshbach resonances in an...

Competitive Adsorption of PEG/C1-(SPS/MPS) on Cu: an in situ ellipsometric study.

May 5, 2005

Author(s)

Marlon L. Walker, Lee J. Richter, Thomas P. Moffat

Linear Stability of Cylindrical Couette Flow Using a Convection Regime Base Flow

May 3, 2005

Author(s)

M E. Ali, Geoffrey B. McFadden

Instability of steady circular Couette flow with radial heating across a vertically oriented annulus with inner cylinder rotating and outer cylinder stationary...

Block Copolymer PEO-b-PHPMA Synthesis Using Controlled Radical Polymerization on a Chip

May 2, 2005

Author(s)

Tao Wu, Ying Mei, Chang Xu, Kathryn L. Beers

Block copolymers of poly(ethylene oxide b 2-hydroxypropyl methacrylate) (PEO-b-PHPMA) with a range of molecular weights of the second block PHPMA were obtained...

The Effect of Uncertainty Components Such as Recalibration on the Performance of Quality Control Charts

May 2, 2005

Author(s)

P Winkel, Nien F. Zhang

Daily QC measurements of biochemical quantities were recorded during 4 to 5 months while methods and analyser showed no signs of malfunctioning. The time series...

Measurement and Modeling of Hyperfine- and Rotation-Induced State Mixing in Large Weakly Bound Sodium Dimers

May 1, 2005

Author(s)

Eite Tiesinga, Kevin Jones, Paul D. Lett, U Volz, Carl J. Williams, Paul S. Julienne

We present high-precision trap loss spectroscopy of excited Na_2 molecules obtained by the photoassociation of ultracold sodium atoms. Near the 3S+3P3/2...

Mitochondrial DNA as a cancer biomarker

May 1, 2005

Author(s)

J P. Jakupciak, W. Wang, Maura E. Markowitz, D Ally, Michael D. Coble, Sudhir Srivastava, A Maitra, Peter E. Barker, David Sidransky, Catherine D. O'Connell

Bacterial Expression and One-Step purification of an isotope-labeled heterotremic G-protein α-subunit

May 1, 2005

Author(s)

John P. Marino, N G. Abdulaev, C Zhang, A Dinh, T Ngo, P N. Bryan, D M. Brabazon, K D. Ridge

Development of SRMs 295x and 296x, Respirable Crystalline Silica on Filter

May 1, 2005

Author(s)

Lee L. Yu, John D. Fassett, Bruce S. MacDonald, Therese A. Butler, D Ramsey, R J. Key-Schawartz, T C. Rains

Measuring the Life-Cycle Environmental and Economic Performance of Concrete: The BEES Approach

May 1, 2005

Author(s)

Barbara C. Lippiatt, S Ahmad

Society is increasingly concerned about the implications of manufactured products for the environment, public health, and future costs. How does a product...

Boundary Fields in Reverberation Chambers

May 1, 2005

Author(s)

David A. Hill

A previous plane-wave integral representation for fields in a reverberation chamber is extended to analyze fields near the boundaries of a rectangular chamber...

Uncertainty in Reference Values for the Charpy V-notch Verification Program

May 1, 2005

Author(s)

Jolene D. Splett, Chih-Ming Wang

We present a method for computing the combined standard uncertainty for reference values used in the Charpy machine verification program administered by the...

In Situ Ellipsometric Study of PEG/Cl^- Coadsorption on Cu, Ag, and Au

May 1, 2005

Author(s)

Marlon L. Walker, Lee J. Richter, Thomas P. Moffat

Spectroscopic ellipsometry was used to examine the adsorption of polyethylene glycol (PEG) and Cl- on polycrystalline Cu, Ag and Au electrodes in sulfuric acid...

Voluntary Voting System Guidelines

May 1, 2005

Author(s)

Mark Skall

The National Software Reference Library (NSRL) of the U.S. National Institute of Standards and Technology (NIST) collects software from various sources and...

Surface Anisotropy of Permalloy in NM/NiFe/NM Multilayers

May 1, 2005

Author(s)

J O. Rantschler, P J. Chen, Anthony S. Arrott, Robert D. McMichael, William F. Egelhoff Jr., Brian B. Maranville

We have measured surface anisotropy in Permalloy (Py) deposited between two layers of normal metal (NM = Ag, Cu, or Ta) by determining the total perpendicular...

Accelerated Apha Relaxation Dynamics in the Exfoliated nylon 11/clay nanocomposite Observed in the Melt and Semi-Crystalline State by Dielectric Spectroscopy

May 1, 2005

Author(s)

T Y. Lee, Anthony J. Bur, S C. Roth, P R. Start

Melt state properties of nylon-11 and its exfoliated silicate nanocomposite were monitored during extrusion compounding using an on-line dielectric slit die...

Thermodynamic Control of Germanium Quantum Dot Growth on Silicon

May 1, 2005

Author(s)

Richard J. Wagner, E Gulari

Strained epitaxial growth of Ge on Si(001) produces self-assembled, nanometer scale islands, or quantum dots. We study this growth by atomistic simulation...

Magnetic Normal Modes of Nanoelements

May 1, 2005

Author(s)

Robert D. McMichael, Mark D. Stiles

Micromagnetic calculations are used to determine the eigenfrequencies and precession patterns of some of the lowest-frequency magnetic normal modes of submicron...

Effect of an Organogelator on the Properties of Dental Composites

May 1, 2005

Author(s)

Elizabeth Wilder, K S. Wilson, Janet Quinn, Drago Skrtic, Joseph M. Antonucci

Bioactive dental composites containing amorphous calcium phosphate have the potential to remineralize caries lesions and white spots, but their applications are...

Critical Compilation of Wavelengths and Energy Levels of Singly Ionized Beryllium (Be II)

May 1, 2005

Author(s)

Alexander Kramida

Energy levels and wavelengths of the second spectrum of beryllium (Be II) were critically compiled. Energies of the levels involving excitation of the valence...

Synchrotron Beamline for Extreme-Ultraviolet Multilayer Mirror Endurance Testing

May 1, 2005

Author(s)

Charles S. Tarrio, Steven E. Grantham

Precise Lattice Parameter Comparison of Highly Perfect Silicon Crystals

May 1, 2005

Author(s)

Michael Hanke, Ernest G. Kessler

Critical Compilation of Wavelengths and Energy Levels for Atoms and Atomic Ions

May 1, 2005

Author(s)

Joseph Reader

Current projects to critically compile wavelengths and energy levels for atoms and atomic ions at the National Institute of Standards and Technology are...

Systems Engineering in the Product Lifecycle

May 1, 2005

Author(s)

Conrad E. Bock

This article introduces basic elements of systems engineering that are useful in managing the product lifecycle, as expressed in an extension to the Unified...

Interparticle Interaction Effects in the Magnetic Properities NiO Nanorods

May 1, 2005

Author(s)

M Seehra, H Shim, P Dutta, A Manivannan, John E. Bonevich

Magnetic properties of sol-gel synthesized 5 nm nanorods of NiO, with and without oleic acid coating to affect interparticle interactions, are reported...

Effect of Conformal Roughness on Ferromagnetic Resonance Linewidth in Thin Permalloy Films

May 1, 2005

Author(s)

Brian B. Maranville, J Mallett, Thomas P. Moffat, Robert McMichael, Andrew P. Chen, William F. Egelhoff Jr.

The ferromagnetic resonance line width is a result of both intrinsic damping and contributions from inhomogeneities, which in thin films can be dominated by the...

Temperature, Wavelength, and Polarization Dependent Time Resolved Optical Spectroscopy of Half-Metallic CrO₂

May 1, 2005

Author(s)

H Huang, K A. Seu, A C. Reilly, Y Kadmon, William F. Egelhoff Jr.

Chromium dioxide (CrO2) is an important transition metal oxide due to its half-metallic behavior. Recent investigation has measured a spin polarization at the...

Origin of Exchange Decoupling Effects in High-Coercivity Air-Annealed CoPd Multilayers

May 1, 2005

Author(s)

William F. Egelhoff Jr., Robert McMichael, J Mallett, Alexander J. Shapiro, Cedric J. Powell, John E. Bonevich, J H. Judy, J H. Thomas, Erik B. Svedberg

We have achieved excellent exchange decoupling of grains in CoPd multilayers by annealing in air at 300 C. Samples exhibit a slope in the hysteresis loop close...

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