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Journals

The Role of the Potential Distribution at the Electrode Interface in Determining the Electron Transfer Rate Constant

April 6, 1999

Author(s)

Adolfas K. Gaigalas, T Ruzgas

Simultaneous electrochemical impedance (EI) and electroreflectance (ER) measuremants were performed on 'bare' gold, N-acetyl-L-cysteine (NAC) modified gold, and...

The Conversion of SURF II to SURF III

April 2, 1999

Author(s)

Mitchell L. Furst, R M. Graves, A D. Hamilton, L R. Hughey, R P. Madden, Robert E. Vest, W S. Trzeciak, L Greenler, P Robl, D Wahl

The Electron and Optical Physics Division of the Physics Laboratory has operated the Synchrotron Ultraviolet Radiation Facility (SURF) at the National Institute...

International Comparison of Thermal Noise-Temperature Measurements at 2, 4 and 12 GHz

April 1, 1999

Author(s)

James P. Randa, J. Achkar, F. I. Bucholz, T. Colard, John Rice, D. Schubert, M. Sinclair, G. S. Williams

Comparison of Magnetostatic Field Calculation Methods on Two Dimensional Square Grids as Applied to Micromagnetic Standard Problem

April 1, 1999

Author(s)

Robert D. McMichael, Michael J. Donahue, Donald G. Porter, J G. Eicke

Magnetization reversal modes and coercivities were calculated for a magnetic particle with thickness: width: length aspect ratios 0.1: 1:5 as a function of the...

Modeling of Bare and Aspirated Thermocouples in Compartment Fires

April 1, 1999

Author(s)

L G. Blevins, William M. Pitts

As part of an effort to characterize the uncertainties associated with temperature measurements in fire environments, models of bare bead single-shielded...

NIST Research Toward Construction Site Integration and Automation

April 1, 1999

Author(s)

William C. Stone, K A. Reed, P Chang, L E. Pfeffer, Adam S. Jacoff

Current uses of computers in construction include design, planning, scheduling, and cost estimating. Much more could be achieved on a fully computer integrated...

An Argument for Using Coarse Cements in High-Performance Concretes

April 1, 1999

Author(s)

Dale P. Bentz, C J. Hacker

The NIST cement hydration microstructural model and experimental studies are used to investigate the effects of particle size distribution and water-to-cement...

Reversible Gels for Electrophoresis and Isolation of DNA

April 1, 1999

Author(s)

Kenneth D. Cole

Crystal Structure of Escherichia coli Uracil DNA Glycosylase and Its Complexes with Uracil and Glycerol: Structure and Glycosylase Mechanism Revisited

April 1, 1999

Author(s)

G Xiao, M. Tordova, J. Jagadeesh, A C. Drohat, J T. Stivers, G L. Gilliland

IEEE Trans on Instrumentation - Forward

April 1, 1999

Author(s)

Norman B. Belecki

The National Institute of Standards and Technology hosted the 1998 Conference on Precision Electromagnetic Measurements (CPEM'98) in Washington, D.C. during the...

Multiconductor Transmission-Line Characterization: Representations, Approximations, and Accuracy

April 1, 1999

Author(s)

Dylan F. Williams, J. E. Rogers, Christopher L. Holloway

This paper investigates a measurement method that characterizes lossy printed multiconductor transmission lines, its accuracy, the choice of measurement...

The IEEE 802.16 Working Group on Broadband Wireless

April 1, 1999

Author(s)

Roger Marks

Evaluation of Guarded High-Resistance Hamon Transfer Standards

April 1, 1999

Author(s)

Dean G. Jarrett

An improved design for a guarded transfer standard in the resistance range 1 M ω to 100 G ω is described. Existing transfer standards and their limitations are...

Dependence of Contact Resistance on Current for Ohmic Contacts to Quantized Hall Resistors

April 1, 1999

Author(s)

Kevin C. Lee

The dependence of contact resistance on current has been measured for a large number of ohmic contacts to quantized Hall resistors under quantum Hall effect...

Cryogenic Current Comparator Measurements at 77 K Using Thallium-2223 Thick-film Shields

April 1, 1999

Author(s)

Randolph E. Elmquist

Several different magnetic shield geometries were used to study cryogenic current compactor (CCC) operation with thallium-based thick film superconducting...

A Crystalline Polymer Morphologist's Perspective on the Occasion of the Centenary of the Foundation of the American Physical Society

April 1, 1999

Author(s)

Freddy A. Khoury

Biographical commentary: A Crystalline Polymer Morphologist's Perspective on the Occasion of the Centenary of the Foundation of the American Physical Society.

Size Effect for Specific Energy in Grinding of Silicon Nitride

April 1, 1999

Author(s)

T W. Hwang, Christopher J. Evans, S Malkin

An investigation is reported of the ?size effect? for specific energy in grinding of silicon nitride. Experimental measurements over a wide range of operating...

Response of Two Layers Overlaying a Half-Space to a Suddenly Applied Point Force

April 1, 1999

Author(s)

Nelson N. Hsu

Expressions for the elastodynamic displacements, generated by a normal point force acting on the top layer of two isotropic layers overlaying an isotropic half...

Dynamical Diffraction and X-Ray Standing Waves from Atomic Planes Normal in a Twofold Symmetry Axis of the Quasicrystal A1PdMn

April 1, 1999

Author(s)

Terrence J. Jach, Yanbao Zhang, R. Colella, M. De Boissieu, M. Boudard, A. I. Goldman, T Lograsso, D W. Delaney, S. Kycia

We have observed dynamical diffraction in the [024024] and[046046] reflections of the icosahedral quasicrystal A1PdMn in the back-reflection geometry (θ B = 90...

Elemental and Molecular Imaging of Human Hair Using Secondary Ion Mass Spectrometry

April 1, 1999

Author(s)

John G. Gillen, S V. Roberson, C M. Ng, M Stranick

Secondary ion mass spectrometry (SIMS) is used to image the spatial distribution of elemental and molecular species on the surface and in cross-sections of...

Multiconductor Transmission-Line Characterization: Representations, Approximations, and Accuracy

April 1, 1999

Author(s)

Dylan F. Williams, Christopher L. Holloway, Janet E. Rogers

This paper investigates a measurement method that characterizes lossy printed multiconductor transmission lines, its accuracy, the choice of measurement...

The Importance of Importance Sampling

April 1, 1999

Author(s)

Isabel M. Beichl, F Sullivan

This is a tutorial article on Monte Carlo technique of importance sampling that has been under-appreciated. We recently used it with great success and so we...

Comparison of Two Josephson Array Voltage Standard Systems Using a Set of Zener References

April 1, 1999

Author(s)

Yi-hua Tang, Richard L. Steiner, June E. Sims

It is possible to compare Josephson-array voltage systems to parts in 10 9 via multi-Zener reference interchanges and ultra-low thermal-emf switching. These...

Selection Mechanisms for Multiple Similarity Solutions for Solidification and Melting

April 1, 1999

Author(s)

Sam R. Coriell, Geoffrey B. McFadden, R F. Sekerka

When a solid phase of uniform temperature Ts∞ and Composition Cs∞ is brought into contact with a liquid phase of uniform temperature TL∞ and composition CL∞...

The Molar Volume of Silicon: Discrepancies and Limitations

April 1, 1999

Author(s)

R Deslattes, Ernest G. Kessler

We offer a new representation of the current silicon molar volume discrepancy by attending to a previously incorrect accounting of the early work at the...

Narrow-Line Doppler Cooling of Strontium to the Recoil Limit

April 1, 1999

Author(s)

K R. Vogel, Tim P. Dinneen, Alan Gallagher, J L. Hall

Experimental results on narrow line cooling line cooling of strontium atoms are presented. Doppler cooling is performed on the 1S o- 3P 1 intercombination...

Stabilization and Frequency Measurement of the I₂-Stabilized Nd: YAG Laser

April 1, 1999

Author(s)

D S. Hall, L -. Ma, M S. Taubman, B Tiemann, F L. Hong, O Pfister, J Ye

We report improved stabilization results for and progress toward a more accurate frequency measurement of the 532 nm iodine-stabilized system based on a...

A Portable, Pulsed-Molecular-Beam, Fourier-Transform Microwave Spectrometer Designed for Chemical Analysis

April 1, 1999

Author(s)

R D. Suenram, J U. Grabow, A Zuban, I Leonov

Harmony et al. recently published some design specifications for a smaller version of a Fourier transform microwave (FTMW) spectrometer. In this work they used...

Absolute Frequency Atlas of Molecular I₂ Lines at 532 NM

April 1, 1999

Author(s)

Jun Ye, Lennart Robertsson, S Picard, L -. Ma, John L. Hall

With the aid of two iodine spectrometers, we report for the first time the measurement of the hyperfine splittings of the P(54) 32-0 and R(57)32-0 transitions...

Ion Energy Distributions and Sheath Voltages in Radio-Frequency-Biased, Inductively-Coupled, High-Density Plasma Reactor

April 1, 1999

Author(s)

Mark A. Sobolewski, James K. Olthoff, Yicheng Wang

Ion energy distributions were measured at a grounded surface in an inductively-coupled, high-density plasma reactor for pure argon, argon-helium, and argon...

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