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Journals

Elastic-Strain Tensor by Rietveld Refinement of Diffraction Measurements

November 1, 1998

Author(s)

Davor Balzar, R B. Voneele, K Bennett, H M. Ledbetter

By collecting diffraction patterns at different specimen orientations, the procedure to obtain all components of the elastic-strain tensor by Rietveld...

Synthesis, Characterization, and Crystal Structure of Dicalcium Glutarylbisphosphonate Dihydrate - Covalently Pillared Layer Structure with the Potential for Epitaxial Growth on Hydroxyapatite.

November 1, 1998

Author(s)

M Mathew, Bruce O. Fowler, E Breuer, G Golomb, I S. Alferiev, Naomi Eidelman

A new bisacylphosphonate, glutarylbisphosphonate (GlBP) was synthesized. Sodium and calcium salts of the GlBP, disodium dihydrogenglutarylbisphosphonate, NaHO...

Matrix Isolation Study of the Interaction of Excited Neon Atoms With CCl₄: Infrared Spectra of the Ion Products and of Cl₂CCl. . Cl

November 1, 1998

Author(s)

C Lugez, Marilyn E. Jacox, Russell D. Johnson III

When a Ne:CCl 4 sample is codeposited at approximately 5 K with a beam of neon atoms that have been excited in a microwave discharge, the infrared spectrum of...

Having it Both Ways: Distinguishable Yet Phase-Coherent Mixtures of Bose-Einstein Condensates

November 1, 1998

Author(s)

Eric A. Cornell, D S. Hall, M R. Matthews, C E. Wieman

We have begun a series of experiments on mixed bosonic quantum fluids. Our system is mixed Bose-Einstein condensates in dilute Rb-87. By simultancously trapping...

Thermophysical Properties of Gaseous CF₄ and C₂F₆ From Speed-of-Sound Measurements

November 1, 1998

Author(s)

John J. Hurly

A cylindrical resonator was employed to measure the sound speeds in gaseous CF 4 and C 2F 6. The CF 4 measurements span the temperature range 300 K to 475 K...

Shear Induced Restructuring of Dense Colloidal Silica Gels

November 1, 1998

Author(s)

Howard J. Hanley, Chris D. Muzny, B D. Butler, G C. Straty, J Barlett, E. Drabarek

The viscometric properties and structure of concentrated sheared colloidal gels, formed at a pH = 8 from a commercial aqueous sol of 7 nm diameter silica...

Turbidity, Light Scattering, and Coexistence Curve Data for the Ionic Binary Mixture Triethyl N-Hexyl Ammonium Triethyl N-Hexyl Borate in Diphenyl Ether

November 1, 1998

Author(s)

S. Wiegand, M E. Briggs, M Kleemeier, W Schroer, Johanna Levelt Sengers

We report turbidity, light scattering, and coexistence curve data for a solution of triethyl n-hexyl ammonium triethyl n-hexyl borate in diphenyl ether. We...

Standardless Quantitative Electron-Excited X-Ray Microanalysis by Energy Dispersive Spectrometry: What Is its Proper Role?

November 1, 1998

Author(s)

Dale E. Newbury

Electron beam x-ray microanalysis with semiconductor energy dispersive spectrometry (EDS) performed with standards and calculated matrix corrections can yield...

Morphology of Polyethylene-Carbon Black Composites

November 1, 1998

Author(s)

G Beaucage, Daniel A. Fischer, Gabrielle G. Long, S Rane, D W. Schaefer

Carbon black is a common polymer additive that is used for reforcement and for its ability to enhance physical properties such as conductivity. This paper...

Diagnostics of 'Colossal' Magnetoresistance Manganate Films by Raman Spectroscopy

November 1, 1998

Author(s)

V B. Podobedov, D B. Romero, A Weber, Joseph P. Rice, R Schreekala, M Rajeswari, R Ramesh, T Venkatesan, H D. Drew

Polarized Raman scattering by phonons is used to characterize thin films prepared by laser ablation of a lanthanum manganese oxide target. It was found that in...

The High-Resolution Raman Spectrum of the Ņ₄ Band of Diborane

November 1, 1998

Author(s)

J L. Domenech, D Bermejo, J.- M. Flaud, Walter J. Lafferty

The high resolution Raman spectra of the Ņ 4 bands of 11B 2H 6 and 11B 10BH 6 have been recorded and analyzed. The recordings have been made using a high...

Constant-Pressure Molecular Dynamics Investigation of Cholesterol Effects in a Dipalmitoylphosphatidylcholine Bilayer

November 1, 1998

Author(s)

K Tu, M L. Klein, D Tobias

We report a 1.4-ns constant-pressure molecular dynamics simulation of cholesterol at 12.5 mole% in a dipalmitoylphosphatidylcholine [DDPC] bilayer at 50 C, and...

Calculation of Measurement Uncertainty Using Prior Information

November 1, 1998

Author(s)

Steven D. Phillips, William T. Estler

We describe the use of Bayesian inference to include prior information about the value of the measurand in the calculation of measurement uncertainty. Typical...

Micromachined Silicon Torsional Resonator for Magnetic Anisotropy Measurement

November 1, 1998

Author(s)

J. Morillo, Q. Su, B. Panchapakesan, Matthias Wuttig, Donald B. Novotny

A novel method for measuring the out-of-plane magnetic anisotropy of thin films has been developed using the existing techniques of silicon micromachining. The...

Effect of Polymer Molecular Weight on the Adsorption of Polyacrylic Acid at the Alumina-Water Interface

November 1, 1998

Author(s)

D Santhiya, G Nandini, K A. Natarajan, S G. Malghan

The adsorption and electrokinetic characteristics of alumina suspensions in the presence of polyacrylic acid as a dispersant have been studied. The adsorption...

High Critical-Current Measurements in Liquid and Gaseous Helium

November 1, 1998

Author(s)

Loren F. Goodrich, L T. Medina, Theodore C. Stauffer

Effect of Temperature on Electron Attachment to and Negative Ion States of CCl₂F₂

November 1, 1998

Author(s)

Yicheng Wang, Loucas G. Christophorou, J. K. Verbrugge

The effect of temperature on electron attachment to dichlorodifluoromethane (CCl 2F 2) has been investigated for temperatures up to 500 K and for mean electron...

Molecular Structure of Silsesquioxanes Determined by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry

November 1, 1998

Author(s)

William E. Wallace, Charles M. Guttman, Joseph M. Antonucci

Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry was used to deduce the three-dimensional structure of a complex silsesquioxane...

Document Image Coding for Processing and Retrieval

October 30, 1998

Author(s)

O E. Kia, D Doermann

Document images belong to a unique class of images where the information content is contained in the language represented by a series of symbols on the page...

Blind Men and Elephants: Six Approaches to TREC Data

October 28, 1998

Author(s)

D L. Banks, Paul D. Over, Nien F. Zhang

The paper reviews six recent efforts to better understand performance measurements on information retrieval (IR) within the framework of the Text REtrieval...

Combined Spectroscopic Ellipsometry and Voltammetry of Tetradecylmethyl-viologen Films on Gold

October 27, 1998

Author(s)

Vytautas Reipa, H G. Monbouquette, V L. Vilker

A Thermodynamic and Quantum Chemical Study of the Conversion of Chorismate to (Pyruvate + 4-Hydroxybenzoate)

October 22, 1998

Author(s)

Yadu D. Tewari, J Chen, Marcia J. Holden, K. N. Houk, Robert N. Goldberg

A thermodynamic investigation of the conversion of chorismate 2-(aq) to {pyruvate -(aq) + 4-hydroxybenzoate -(aq)} has been performed by using microcalorimetry...

Configurational Temperature: Verification of Monte-Carlo Simulations

October 22, 1998

Author(s)

B D. Butler, G Ayton, O G. Jepps, D J. Evans

1998 Broadcast News Benchmark Test Results: English and Non-English Word Error Rate Performance Measures

October 20, 1998

Author(s)

D S. Pallett, Jonathan G. Fiscus, John S. Garofolo, Alvin F. Martin, Mark A. Przybocki

This paper documents the use of Broadcast News test materials in DARPA-sponsored Automatic Speech Recognition (ASR) Benchmark Tests conducted late in 1998. As...

Vibrationally-Resolved Sum-Frequency Generation With Broad Bandwidth Infrared Pulses

October 15, 1998

Author(s)

Lee J. Richter, T Petralli-Mallow, John C. Stephenson

We present a novel procedure for vibrationally-resolved sum-frequency generation (SFG) in which a broad-bandwidth IR pulse is mixed with a narrow-bandwidth...

Microwave Power Handling in Engineered Yba₂Cu₃O^d6-δ Grain Boundaries

October 12, 1998

Author(s)

Y. M. Habib, D. E. Oates, G. Dresselhaus, M. Dresselhaus, Leila R. Vale, Ronald H. Ono

Microwave-frequency (rf) power-dependence measurements performed on thin-film Yba 2Cu 3O^d7-δ grain boundaries engineered on sapphire bicrystal substrates with...

Neutron Reflectometry, X-Ray Reflectometry, and Spectroscopic Ellipsometry Characterization of Thin SiO₂ on Si

October 12, 1998

Author(s)

Joseph Dura, Curt A. Richter, Charles Majkrzak, Nhan Van Nguyen

Characterization of Narrow-Band Infrared Interference Filters

October 8, 1998

Author(s)

Simon G. Kaplan, Leonard M. Hanssen

A Fourier-transform infrared (FT-IR) spectrophotometer system is used to measure the transmittance of infrared band-pass filters as a function of wavelength...

FT-IR Based Polarimeter with High-Quality Brewster-Angle Polarizers

October 8, 1998

Author(s)

Simon G. Kaplan, Leonard M. Hanssen

A Fourier transform infrared (FT-IR) spectrometer based broadband infrared polarimeter has been developed around a pair of high-quality Brewster angle...

Normal Infrared Spectral Emittance of Al₂O₃

October 8, 1998

Author(s)

Simon G. Kaplan, Leonard M. Hanssen

We have measured the near-normal ordinary ray transmittance and reflectance of crystalline Al 2O 3 from 1.6 m to 11 m and temperatures from 296 K to 582 K. The...

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