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Journals

A Hybrid Lagrangian Variational Method for Bose-Einstein Condensates in Optical Lattices

February 7, 2005

Author(s)

M Edwards, L M. DeBeer, M Demenikov, J Galbreath, B Nelson, Charles W. Clark

Solving the Gross--Pitaevskii (GP) equation describing a Bose--Einstein condensate (BEC) immersed in an optical lattice potential can be a numerically demanding...

End States in One-Dimensional Chains

February 4, 2005

Author(s)

Jason Crain, Daniel T. Pierce

End states-the zero-dimensional analogs of the two-dimensional states that occur at a crystal surface-were observed at the ends of one-dimensional atom chains...

Enthalpy of solution of potassium tetrafluoroborate in water and in aqueous sodium fluoride. Thermodynamic properties of the aqueous tetrafluouroborate anion and potassium tetrafluroborate

February 4, 2005

Author(s)

Donald G. Archer

An adiabatic calorimeter was used to measure the enthalpy of solution of potassium tetrafluoroborate (0.01mol.kg-1 to 0.02 mol.kg-1) into water and into aqueous...

PVTx Measurements and Crossover Equation of State of Pure n-Hexane and Dilute Aqueous n-Hexane Solutions in the Critical and Supercritical Regions

February 2, 2005

Author(s)

Ilmutdin Abdulagatov, Emil Bazaev, Joe W. Magee, Sergei B. Kiselev, James F. Ely

The PVTx relationship of aqueous n-hexane solutions (0.0201, 0.082 and 0.8500 mole fraction of n-hexane) has been measured in the near-critical and...

Living with Uncertainty

February 1, 2005

Author(s)

Carl C. Miller, Yoshihiro Ohno

Soft-Decision Decoding Error Probability Bounds for OFDM/QAM

February 1, 2005

Author(s)

Leonard E. Miller

We have implemented a quantum key distribution (QKD) system with polarization encoding at 850 nm over 1 km of optical fiber. The high-speed management of the...

Adaptive Grid Refinement for a Model of Two Confined and Interacting Atoms

February 1, 2005

Author(s)

William F. Mitchell, Eite Tiesinga

We have applied adaptive grid refinement to solve a two-dimensional Schroedinger equation in order to study the feasibility of a quantum computer based on...

Theory of Bright Field Scanning Transmisison Electron Microscopy for Tomography

February 1, 2005

Author(s)

Zachary H. Levine

Radiation transport theory is applied to electron microscopy of samples composed of one or more materials. The theory, originally due to Goudsmit and Saunderson...

An Atomic Clock on a Chip

February 1, 2005

Author(s)

John E. Kitching

This article described recent research in the Time and Frequency Division at NIST to develop highly miniaturized atomic frequency references using...

Enthalpy of Solution of Potassium Tetrafluoroborate in Water and in Aqueous Sodium Fluoride. Thermodynamic Properties of the Aqueous Tetrafluoroborate Anion and Potassium Tetrafluoroborate.

February 1, 2005

Author(s)

Donald G. Archer

An adiabatic calorimeter was used to measure the enthalpy of solution of potassium tetrafluoroborate (0.01 mol multiplied by kg^-^1 to 0.02 mol multiplied by kg...

Mass Scaling for Vibrational Frequencies from ab Initio Calculations

February 1, 2005

Author(s)

Karl K. Irikura

Noninvasive Monitoring of Ion Energy Drift in an Inductively Coupled Plasma Reactor

February 1, 2005

Author(s)

Mark A. Sobolewski

A non-invasive method for monitoring ion current and ion kinetic energy has been used to monitor drift in an inductively coupled, rf-biased plasmareactor. The...

UV-Absorption Spectra of the Radical Transients Generated from the 193-nm Photolysis of Allene, Propyne and 2-Butyne

February 1, 2005

Author(s)

Askar Fahr, Allan H. Laufer

The 193 nm photochemistry of allene (H2C=C=CH2), propyne (H3C-C CH) and 2-butyne (H3C-C C-CH3) have been examined and the UV spectral region between 220 nm and...

Determination of Fluid-Phase Behavior Using Transition-Matrix Monte Carlo: Binary Lennard-Jones Mixtures

February 1, 2005

Author(s)

Vincent K. Shen, Jeffrey R. Errington

We present a new computational methodology for determining fluid-phase equilibria in binary mixtures. The method is based on a combination of highly efficient...

Measurement of the Optical Extinction Coefficient of Combustion-Generated Aerosol

February 1, 2005

Author(s)

J F. Widmann, J X. Duchez, Joseph M. Conny, George W. Mulholland

This note describes mesurements of the optical extinction coefficient of carbonaceous aerosol produced during hydrocarbon combustion. Measurements of the mass...

Reply to the discussion by C. Shi of the paper Estimating the Electrical Conductivity of Cement Paste Pore Solution from OH-, K+, and Na+ Concentrations

February 1, 2005

Author(s)

Kenneth A. Snyder

Shi et al. have applied an equation for solution equivalent conductivities (denoted by A) to the problem of estimating species equivalent conductivities...

Mixture Proportioning for Internal Curing

February 1, 2005

Author(s)

Pietro Lura, J W. Roberts

A methodology is presented for the mixture proportioning of ordinary Portland cement concretes to supply internal curing via the addition of saturated...

Reply to Discussion of, Estimating the Electrical Conductivity of Cement Paste Pore Solution From OH, K, and Na Concentrations, C&CR MS # 5897 (r)

February 1, 2005

Author(s)

Kenneth A. Snyder

An Improved Radiochemical Neutron Activation Analysis Procedure for Trace Mercury

February 1, 2005

Author(s)

Richard M. Lindstrom

Radiochemical neutron activation analysis has proven to be a powerful tool for measuring trace mercury in a variety of materials. In a modification of an...

Low-level Determination of Silicon in Biological Materials using Radiochemical Neutron Activation Analysis

February 1, 2005

Author(s)

J. Kucera, Rolf L. Zeisler

Synopsis of the 2004 ASMS Fall Workshop on Polymer Mass Spectrometry

February 1, 2005

Author(s)

William E. Wallace

This year s fall workshop of the American Society for Mass Spectrometry was on the topic of synthetic polymer mass spectrometry and was chaired by Robert P...

Hydrolysis of Tetracalcium Phosphate Under a Near Constant-Composition Condition: Effects of pH and Particle Size

February 1, 2005

Author(s)

Laurence C. Chow, Milenko Markovic, B A. Frukhtbyen, Shozo Takagi

Tetracalcium phosphate (TTCP) is a component of a number of calcium phosphate cements used clinically for bone defect repairs. The properties of the cement such...

Improvements in Food Analysis by Thermal Neutron Capture Prompt Gamma-ray Spectrometry

February 1, 2005

Author(s)

D L. Anderson, Elizabeth A. Mackey

Effective Electromagnetic Properties of Honeycomb Composites, and Hollow Pyramidal and Alternating Wedge Absorbers

February 1, 2005

Author(s)

Christopher L. Holloway, Martin Johansson, Edward Kuester

Closed-form expressions for the effective material properties of honeycomb composites and electromagnetic absorbers constructed in the shapes of alternating...

Water Immersion of Model Photoresists: Interfacial Influences on Water Concentration and Surface Morphology

February 1, 2005

Author(s)

B D. Vogt, D L. Goldfarb, M Angelopoulos, Christopher Soles, C M. Wang, Vivek Prabhu, P M. McGuiggan, Jack F. Douglas, Eric K. Lin, Wen-Li Wu, Sushil K. Satija

Immersion lithography has emerged as an alternative to the 157 nm node and as such understanding of the interactions between the photoresist and immersion fluid...

Science at the Speed of Thought

February 1, 2005

Author(s)

J E. Devaney, Steven G. Satterfield, John T. Kelso, Adele Peskin, William L. George, John G. Hagedorn, Terence J. Griffin, Howard Hung, R D. Kriz

Combinatorial Peel Tests for the Characterization of Adhesion Behavior of Polymeric Films

February 1, 2005

Author(s)

R Song, Martin Chiang, A J. Crosby, Alamgir Karim, Eric J. Amis, Naomi Eidelman

The self-adhesion behavior of an optically smooth poly(methyl methacrylate) (PMMA) thin film (ca.. 100 nm) on different evaporated metal substrates has been...

Near-Edge X-Ray Absorption Fine Structure Investigations of Order in Carbon Nanotube-Based Systems

February 1, 2005

Author(s)

S Banerjee, T Hemraj-Benny, S Sambasivan, Daniel A. Fischer, J A. Misewich, S S. Wong

Probing order in nanotube systems is of fundamental importance in devising applications of these tubes in field emission applications as well as components of...

Artifacts That Mimic Ballistic Magnetoresistance

February 1, 2005

Author(s)

William F. Egelhoff Jr., L Gan, H Ettedgui, Y Kadmon, Cedric J. Powell, P J. Chen, Alexander J. Shapiro, Robert McMichael, J Mallett, Thomas P. Moffat, Mark D. Stiles, Erik B. Svedberg

We have investigated the circumstances underlying recent reports of very large values of ballistic magntoresistance (BMR) in nanocontacts between magnetic wires...

A Rigorous Attempt to Verify Interstellar Glycine

February 1, 2005

Author(s)

Lewis E. Snyder, Francis J. Lovas, J M. Hollis, Douglas N. Friedel, P R. Jewell, A Remijan, Vadim V. Ilyushin, E A. Alekseev, S K. Dyubko

In 2003, Kuan, Charnley, and co-workers claimed the detection of interstellar glycine (NH2 CH2COOH) based on the detection of 27 lines in 19 different spectral...

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