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Journals

Patterned Loading of a Bose-Einstein Condensate Into an Optical Lattice

May 1, 2003

Author(s)

S P. Peil, James V. Porto, B L. Tolra, J Obrecht, B E. King, M Subbotin, S L. Rolston, William D. Phillips

We have developed a technique to control the placement of atoms in an optical lattice by using a superlattice comprising two separately manipulated, periodic...

Structure and Mechanism of Pseudomonas Aeruginosa PhzD, an Isochorismatase From the Phenazine Biosynthetic Pathway

May 1, 2003

Author(s)

J F. Parsons, K Calabrese, Edward Eisenstein, Jane E. Ladner

PhzD from Pseudomonas aeruginosa, is an isochorismatase involved in the synthesis of bioactive metabolites known as phenazines. Phenzines are antimicrobial...

An Equation of State and Compressed Liquid and Supercritical Densities for Sulfur Dioxide

May 1, 2003

Author(s)

E. Christian Ihmels, Eric Lemmon, Juergen Gmehling

Densities of sulfur dioxide (SO2) have been measured with a computer-controlled high temperature, high pressure vibrating tube densimeter system (DMA-HDT) in...

Dependence of Morphology on Miscut Angle for Si(111) Etched in NH(4)F

May 1, 2003

Author(s)

S Gonda, Joseph Fu, John A. Kramar, Richard M. Silver, Hui Zhou

Using scanning probe microscopy, we have examined the surfaces produced by etching several different vicinal Si(111) samples in NH(4)F aqueous solution. In...

Test Structures for Referencing Electrical Linewidth Measurements to Silicon Lattice Parameters Using HRTEM

May 1, 2003

Author(s)

Richard A. Allen, B A. am Ende, Michael W. Cresswell, Christine E. Murabito, T J. Headley, William F. Guthrie, Loren W. Linholm, Colleen E. Hood, E. Hal Bogardus

A technique has been developed to determine the linewidths of the features of a prototype reference material for the calibration of CD (Critical-Dimension)...

Measurements for Enhanced Bandwidth Performance Over 62.5 υm Multimode Fiber in Short-Wavelength Local Area Networks

May 1, 2003

Author(s)

John B. Schlager, M. J. Hackert, P. Pepeljugoski, J. Gwinn

The Telecommunications Industry Association (TIA) FO-2.2.1 Working Group on the Modal Dependence of Bandwidth has conducted industry wide inter-laboratory...

Determination of Si in Standard Reference Material SRM 295x Silica-on-Filter

April 30, 2003

Author(s)

Lee L. Yu, John D. Fassett, Abigail P. Lindstrom

Counting Errors in a Voltage-Biased Electron Pump

April 30, 2003

Author(s)

Xavier Jehl, Mark W. Keller, Richard L. Kautz, Joe Aumentado, John M. Martinis

We have measured the counting errors of a 7-junction electron pump when charge is pumped against a voltage difference. At voltages above about 50 υV, we find...

Quantitative Analysis and Characterization of DNA Immobilized on Gold

April 30, 2003

Author(s)

D Y. Petrovykh, H Y. Kimura-Suda, L J. Whitman, Michael J. Tarlov

We describe the complementary use of x-ray photoelectron spectroscopy (XPS) and fourier transform infrared (FTIR) spectroscopy to quantitatively characterize...

Structural Variations and Ordering Conditions for the Self-Assembled Monolayers of HS(CH2CH2O)(3-6)CH3

April 29, 2003

Author(s)

David J. Vanderah, J Arsenault, H La, Richard S. Gates, Vitalii I. Silin, Curtis W. Meuse, Gintaras Valincius

The structure and ordering conditions of the self-assembled monolayers (SAMs) of HS(EO)xR, where R = CH3, EO = CH2CH2O, and x = 3 to 6, on polycrystalline gold...

Structure of 1,4-Benzenedimethanethiol Self-Assembled Monolayers on Gold Grown by Solution and Vapor Techniques

April 29, 2003

Author(s)

D L. Pugmire, Michael J. Tarlov, Roger D. van Zee, Jawad Naciri

Characteristics of decanethiol and benzenedimethanethiol (BDMT) self-assembled monolayers (SAMs) grown using solution and vapor techniques were studied with X...

Evaluation of Extraction Methodologies for Corn Kernal (Zea Mays) DNA for Detection of Trace Amounts of Biotechnology-Derived DNA

April 23, 2003

Author(s)

Marcia J. Holden, J L. Blasic, L Bussjaeger, C Kao, Luke A. Shokere, D C. Kendall, L Freese, G. Ronald Jenkins

Sensitivity and accurate testing for trace amounts of biotechnology-derived DNA from plant material requires pure, high-quality genomic DNA as template for...

On an Approximate Minimax Circle Closest to a Set of Points

April 15, 2003

Author(s)

Saul I. Gass, Christoph J. Witzgall

We show how the Chebychev minimax criterion for finding a circle closest to a set of points can be approximated well by standard linear programming procedures.

Extension of the Torsional Crystal Viscometer to Measurements in the Time Domain

April 15, 2003

Author(s)

R F. Hafer, Arno R. Laesecke

This paper reports the first wide-ranging application of the free-mode measurement technique to a torsional crystal viscometer. The viscous damping of the fluid...

Mode-locked laser pulse trains with subfemtosecond timing jitter synchronized to an optical reference oscillator

April 15, 2003

Author(s)

A Bartels, Scott A. Diddams, T M. Ramond, Leo W. Hollberg

Effects of interlayer electrode thickness in Nb/(MoSi₂/Nb)_N stacked Josephson junctions

April 14, 2003

Author(s)

Yonuk Chong, Paul Dresselhaus, Samuel Benz, John E. Bonevich

Dense vertically stacked Josephson junction arrays are being developed because they are desirable for voltage metrology applications. We present measurements of...

A catalytic mechanism for D-Tyr-tRNA(Tyr) deacylase based on the crystal structure of Hemophilus influenzae HI0670

April 11, 2003

Author(s)

Kap Lim, A Tempczyk, N Bonander, J Toedt, A Howard, E. Eisenstein, O Herzberg

Governmental Approaches to Standards in World Trade

April 9, 2003

Author(s)

Roger Marks

Standards have become a critical element in world trade. Within the guidelines set by the World Trade Organization, governments have developed strategies to...

Spatial Methods for Event Reconstruction in CLEAN

April 9, 2003

Author(s)

Kevin Coakley, D N. Mckinsey

In CLEAN (Cryogenic Low Energy Astrophysics with Noble gases), a proposed neutrino and dark matter detector, background discrimination is possible if one can...

Performance-Based Fire Protection of Historical Structures

April 6, 2003

Author(s)

Richard W. Bukowski, V Nuzzolese, M Bindo

Performance-based fire protection design methods are particularly appropriate for renovation of historical and culturally significant buildings. This is because...

Conventional Cells - Monoclinic I-& C-Centered Cells

April 3, 2003

Author(s)

Alan D. Mighell

In the selection of a centered cell in the monoclinic system, it is recommended that the experimentalist select an I-centered cell for those cases in which it...

Interconnect Fabrication by Superconformal Iodine-Catalyzed Chemical Vapor

April 3, 2003

Author(s)

Daniel Josell, S D. Kim, Daniel Wheeler, Thomas P. Moffat, S G. Pyo

The mechanism behind superconformal filling of fine features during surfactant catalyzed chemical vapor deposition is described and the metrology required to...

The Bromine Doping of Polyacetylene

April 1, 2003

Author(s)

C. K. Chiang

The first doping experiment of polyacetylene performed by Chiang and Shirakawa in 1976 is described. The first successful doping experiment of polyacetylene...

Combinatorial Measurements of Crystallization Growth Rate and Morphology in Thin Films of Isotactic Polystyrene

April 1, 2003

Author(s)

Kathryn L. Beers, Jack F. Douglas, Eric J. Amis, Alamgir Karim

Combinatorial methods are utilized to study the influence of film thickness, h, and crystallization temperature, T, on the crystallization of isotactic...

Statistical Uncertainty Analysis of Key Comparison CCEM-K2

April 1, 2003

Author(s)

Nien F. Zhang, N Sedransk, Dean G. Jarrett

The details of a statistical uncertainty analysis applied to key comparison CCEM-K2 are reported. The analysis presented here provides an approach for...

The Advanced Encryption Standard (AES): Raising the Bar for Cryptography

April 1, 2003

Author(s)

William E. Burr

This paper describes how the National Institute of Standards and Technology (NIST) selected the Advanced Encryption Standard (AES), a new standard symmetric key...

High-Accuracy Determination of the Dependence of the PhotoluminescenceEmission Energy on Alloy Composition in Al_xGa_1-xAs Films

April 1, 2003

Author(s)

Lawrence H. Robins, J T. Armstrong, Ryna B. Marinenko, Albert J. Paul, J G. Pellegrino, Kristine A. Bertness

In an effort to improve the accuracy of photoluminescence (PL)spectroscopy as a composition (Al mole fraction) measurement method forthe Al xGa 1-xAs alloy...

Report to Council From Reference Materials, Reference Data Subcommittee

April 1, 2003

Author(s)

John A. Tesk, K White

Subcommittee & member actions: H Membership is adjusted for 2003-2004. H Society approval sought for co-sponsorship of a NIST symposium on Cell Signaling. H RM...

Structure of Sapphire Bicrystal Boundaries Produced by Liquid-Phase Sintering

April 1, 2003

Author(s)

B Hockey, Sheldon M. Wiederhorn, J Blendell, Jong S. Lee, M K. Kang

Vitreous bonded aluminum oxide bicrystals were formed by growing oriented sapphire through polycrystalline tapes of anorthite-bonded aluminum oxide. The...

Structure and Electronic Properties of the Orthorhombic MoRuP Superconductor Prepared at High Pressure

April 1, 2003

Author(s)

Winnie K. Wong-Ng, W Y. Ching, Y N. Xu, James A. Kaduk, I Shirontani, L Swartzendruber

The new superconductor, orthorhombic MoRuP (o-MoRuP), was prepared under high pressure, and its structure was refined using the X-ray Rietveld technique. The...

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