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Journals

Minimizing Feature Width in Atom-Optically Fabricated Chromium Nanostructures

March 1, 1999

Author(s)

W Anderson, C Bradley, Jabez J. McClelland, Robert Celotta

We present a study of factors that influence the feature width of nanostructures formed by atom-optical direct-write lithography. In this process, chromium

A Phase-Field Model of Solidification With Convection

March 1, 1999

Author(s)

D M. Anderson, Geoffrey B. McFadden, A A. Wheeler

We develop a phase-field model for the solidification of a pure material that includes convection in the liquid phase. The model permits the interface to have

Dielectric and Ultrasonic Anomalies at 16, 37, and 65 K in SrTiO₃

March 1, 1999

Author(s)

C Ang, J F. Scott, Z Yu, H M. Ledbetter, J L. Baptista

In this paper we report coincident anomalies in both dielectric response and sound velocities in strontium titanate around three temperatures 16.37 and 65 K

Precision Neutron Interferometric Search for Evidence of Nuclear Quantum Entanglement in Liquid H₂O-D₂O Mixtures

March 1, 1999

Author(s)

A I. Ioffe, Muhammad D. Arif, David L. Jacobson, F Mezei

A wavelength λ independent neutron interferometry (NI) technique has been applied to measure the scattering length densities Nb of liquid mixtures of H 2O-D 2O

State-to-State Reaction Dynamics in Crossed Supersonic Jets: Threshold Evidence for Non-Adiabatic Channels in F + H₂

March 1, 1999

Author(s)

S A. Nizkorodov, W W. Harper, David Nesbitt

The reaction of F + n-H6d2^ to form HF(υ,J) + H is studied in a crossed jet apparatus under single collision conditions, using high-resolution direct absorption

External Radiative Quantum Efficiency of 96 % from a GaAs/GaInP Heterostructure

March 1, 1999

Author(s)

H G. Gauck, T H. Gforerer, M J. Renn, Eric A. Cornell, Kristine A. Bertness

GaAs/GaInP double heterostructures are index matched with ZnSe hemispheres to increase the coupling of photoluminescence out of the device. We measure external

Incorporation of Non-Steady-State Unimolecular and Chemically Activated Kinetics Into Complex Kinetic Schemes. I. Isothermal Kinetics and Constant Pressure

March 1, 1999

Author(s)

Vadim D. Knyazev, Wing Tsang

A general method of accounting for non-steady-state unimolecular kinetics of reactive species in complex kinetic schemes is described. The method is based on

A Natural Orbital Diagnostic for Multiconfigurational Character in Correlated Wavefunctions

March 1, 1999

Author(s)

M S. Gordon, M W. Schmidt, G M. Chaban, W J. Stevens, Carlos A. Gonzalez

The natural orbitals and their corresponding occupation numbers are constructed for several interesting problems to demonstrate that the existence of negative

Monitoring the Destruction of Carbon Phases in Soils and Sediments for Sequential Chemical Extractions

March 1, 1999

Author(s)

M K. Schultz, S R. Biegalski, K G. Inn, Lee L. Yu, W. C. Burnett, J. L. Thomas , G. E. Smith

Generic Centerline Velocity Decay Curve for Initially Turbulent Axisymmetric Jets

March 1, 1999

Author(s)

G Papadopoulos, William M. Pitts

Recently the authors introduced a length scale which effectively collapsed the near field centerline development of velocity and mass fraction for variable

Results and Challenges in Web Search Evaluation

March 1, 1999

Author(s)

D Hawking, Nick Craswell, P Thistlewaite, Donna Harman

A frozen 18.5 million page snapshot of part of the Web has been created to enable and encourage meaningful and reproducible evaluation of Web search systems and

Engineering Receptor-Mediated Cytotoxicity Into Human Ribonucleases by Steric Blockade of Inhibitor Interaction

March 1, 1999

Author(s)

M Suzuki, S K. Saxena, E Boix, R J. Prill, V M. Vasandani, Jane E. Ladner, C Sung, R J. Youle

Several nonammalian members of the Rnase A superfamily exhibit anticancer activity that appears to correlate with resistance to the cytosolic ribonuclease

The Effect of Hydrothermal Aging on Swelling and Tg Depression for a Particle-Filled, Epoxy-Based Adhesive

February 24, 1999

Author(s)

Martin Y. Chiang, K T. Faber, M Fernandez-Garcia

The aim of this experimental investigation was to determine the effectof moisture on he physical properties of a particle-filled adhesive for structural bonding

Evaluation of Passenger Train Car Materials in the Cone Calorimeter

February 23, 1999

Author(s)

Richard D. Peacock, Richard W. Bukowski, S. H. Markos

Recent advances in fire test methods and hazard analysis techniques make it useful to re-examine passenger train fire safety requirements. The use of test

Barium Hollandite-Type Compounds Ba_xFe_2xTi_8-2xO₁₆ with x= 1.143 and 1.333

February 23, 1999

Author(s)

J. M. Loezos, Terrell A. Vanderah, A R. Drews

Experimental X-ray powder diffraction patterns and refined unit cell parameters for two barium hollandite-type compounds. Ba xFe 2xTi 8-2xO 16, with x = 1.143

Nanofabrication via Atom Optics

February 23, 1999

Author(s)

C Bradley, W Anderson, Jabez J. McClelland, Robert Celotta

Owing to the continuing reduction in the scale of microelectronic and micromagnetic technology, new microfabrication methods are constantly being explored. This

How to Configure Linux for ATM Networks

February 22, 1999

Author(s)

Wayne J. Salamon

This article describes how to configure a personal computer (PC) running the Linux operating system, and an ATM switch, to build an ATM network. Information is

High-speed >90 % quantum-efficiency p-i-n photodiodes with a resonance wavelength adjustable in the 795-835 range

February 22, 1999

Author(s)

E. Vzbay, I. Kimukin, N. Biyikli, O. Ayt|r, M. Gvkkavas, G. Ulu, M. S. {Umlat}nl{umlat}, Richard Mirin, Kristine A. Bertness, David H. Christensen

We report GaAs/AlGaAs-based high-speed, high-efficiency, resonant cavity enhanced p-i-n photodiodes. The devices were fabricated by using a microwave-compatible

On the Physical Interpretation of Torsion-Rotation Parameters in Methanol and Acetaldehyde: Comparison of Global Fit and Ab Initio Results

February 22, 1999

Author(s)

L H. Xu, R M. Lees, Jon T. Hougen

Equilibrium structural constants and certain torsion-rotation interaction parameters have been determined for methanol and acetaldehyde from ab initio

Shear-Induced Restructuring of Concentrated Colloidal Silica Gels

February 15, 1999

Author(s)

H J. Hanley, Chris Muzny, B D. Butler, G C. Straty, J Bartlett, E. Drabarek

Computational Study of KNI-272, a Potent Inhibitor of HIV-1 Protease. On the Mechanism of Preorganization

February 11, 1999

Author(s)

L David, R Luo, M S. Head, M K. Gilson

The compound KNI-272 is a potent, peptide-like inhibitor of HIV protease. Its conformation when complexed with the protease is close to that which it assumes in

Arrays of Distributed-Bragg-Reflector Waveguide Lasers at 1536 nm in Yb/Er Codoped Phosphate Glass

February 8, 1999

Author(s)

D. L. Veasey, David S. Funk, Norman Sanford, Joseph S. Hayden

Challenges in Providing Standard Reference Materials for Chemical and Pharmaceutical Process Analysis

February 2, 1999

Author(s)

John C. Travis, Gary W. Kramer, Melody V. Smith, Steven J. Choquette

A Role-Based Access Control Model and Reference Implementation Within a Corporate Intranet

February 1, 1999

Author(s)

David F. Ferraiolo, John Barkley, David R. Kuhn

This paper describes NIST's enhanced RBAC model and our approach to designing and implementing RBAC features for networked Web servers. The RBAC model

Complex Permittivity Determination from Propagation Constant Measurements

February 1, 1999

Author(s)

Michael D. Janezic, Jeffrey A. Jargon

This letter presents a new transmission line method for measuring the complex permittivity of dielectric materials using propagation constant measurements. In

Viscoelasticity of Xenon Near the Critical Point

February 1, 1999

Author(s)

Robert F. Berg, Michael R. Moldover, G A. Zimmerli

Using a novel, overdamped, oscillator flown aboard the Space Shuttle, we measured the viscosity of xenon near the liquid-vapor critical point in the frequency

Combustion Experiments on STS-83 and STS-94: The Crew's Perspective

February 1, 1999

Author(s)

Gregory T. Linteris, J. E. Voss, R. Crouch

Despite years of planning and hundreds of drop-tower tests in preparation, the combustion experiments aboard STS-83 and STS-94 were full of surprises

NIST-Traceable-Reference-Material Optical Filters Program for Chemical Spectrophotometry

February 1, 1999

Author(s)

John C. Travis, Gary W. Kramer

Genetically Engineered Metal Ion Binding Sites on the Outside of a Channel's Transmembrane Β-Barrel

February 1, 1999

Author(s)

John J. Kasianowicz, D L. Burden, L C. Han, S Cheley, H Bayley

We are exploring the ability of genetically engineered versions of the Staphlococcus aureus αHL} ion channel to serve as rationally designed sensor components

A Thermodynamic Investigation of Some Reactions Involving Prephenic Acid

February 1, 1999

Author(s)

N Kishore, Marcia J. Holden, Yadu D. Tewari, Robert N. Goldberg

Calorimetric enthalpies of reaction have been measured for the following enzyme-catalyzed reactions at the temperature 298.15 Kprephenate(aq) = phenylpyruvate

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