Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Journals

Comments on 'Electron Impact Ionization of Methane'

May 1, 2000

Author(s)

Yong Sik Kim, M E. Rudd

It has been claimed by Khare, Sharma and Tomar (1999 J. Phys. B: At. Mol. Opt. Phys. 32, 3147) that the binary-encounter dipole (BED) model and its simpler

Thermodynamic Properties of Sulfur Hexafluoride

May 1, 2000

Author(s)

John J. Hurly, Dana R. Defibaugh, Michael R. Moldover

We present new vapor phase speed-of-sound data u(P,T), new Burnett density-pressure-temperature data ρ(P,T), and a few vapor pressure measurements for sulfur

Tele-Metrology and Advanced Ultrasonic Flow Metering (Updated Version)

May 1, 2000

Author(s)

Pedro I. Espina, Tsyh Tyan Yeh, P I. Rothfleisch, S A. Osella

In an effort to expand the range of the national standards, NIST is experimenting with tele-metrology concepts to annex flow calibration facilities throughout

Boat Conformations Analysis and Simulation of the Complex ¹H NMR Spectrum of Methyl 2,6:3,4-Dianhydro Alpha-D-Altropyranoside

May 1, 2000

Author(s)

B Coxon

The complex 1H NMR spectrum of methyl 2,6:3,4-dianhydro-α-D-altropyranoside (1) has been analyzed and simulated in detail by using input parameters derived from

Mechanism and Rate Constants for 1,5-Butadiene Decomposition

May 1, 2000

Author(s)

Wing Tsang, V Mokrushin

The data on the decomposition of 1,3-butadiene have been analyzed. The numerous isomerization processes that have recently been proposed as additional channels

Applications of SEM Monte Carlo Modeling to Geometry Determination in Single-Crystal Silicon Test Patterns

May 1, 2000

Author(s)

John S. Villarrubia, Andras Vladar, J R. Lowney, Samuel N. Jones, Michael T. Postek

Width measurements pose a particularly problematic calibration problem. The measurement entails determining the distance between inherently dissimilar edges

Flat-Panel-Display Measurements and Standards

May 1, 2000

Author(s)

Edward F. Kelley

Maintaining the Accuracy of Charpy Impact Machines

May 1, 2000

Author(s)

D P. Vigliotti, Thomas A. Siewert, Christopher N. McCowan

The quality of the data developed by impact machines tends to degrade over time, due to the effects of weear and vibration that are inherent in the test. This

Magneto-Optical Trapping of Chromium Atoms

May 1, 2000

Author(s)

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

We have constructed a magneto-optical trap for chromium atoms. Using trapping light at 425 nm and two repumping lasers tuned to intercombination transitions

Electronic scattering from Co/Cu interfaces: In situ measurement, comparison with microstructure, and failure of semiclassical free-electron models

May 1, 2000

Author(s)

William E. Bailey, S X. Wang, E Y. Tsymbal

International Comparison GT/RF 86-1 Electric Field Strengths: 27 MHz to 10 GHz

May 1, 2000

Author(s)

Motohisa Kanda, Dennis G. Camell, Jan P. deVreede, J. Achkar, M. Alexander, Michele Borsero, H. Yajima, N. S. Chung, H. Trzaska

this paper describes the international comparison of electric field strength measurements at frequencies between 27 MHz and 10GHz (GT/RF 86-1) The participating

A Disk-Loaded Thick Cylindrical Dipole Antenna for Validation of an EMC Test Site from 30 to 300 MHz

May 1, 2000

Author(s)

W. S. Cho, Motohisa Kanda, Philbert Hwang

We propose a new broad-band, short (80-cm-long) disk-loaded thick cylindrical dipole (DTCD) antenna for validation of an electromagnetic compatibility (EMC)

High-Speed Dynamics, Damping, and Relaxation Times in Submicrometer Spin-Valve Devices

May 1, 2000

Author(s)

Stephen E. Russek, Shehzaad F. Kaka, Michael J. Donahue

The dynamical response of spin-vale devices with linewidths of 0.8 5m has been measured after excitation with 160 ps magnetic impulses. The devices show

Effect of Mixing Ratio and pH on the Reaction Between Ca₄(PO₄) ₂O and CaHPO₄

May 1, 2000

Author(s)

S Matsuya, Shozo Takagi, Laurence Chow

The reaction of Ca 4(PO 4) 2O (TTCP) and CaHPO 4 (DCPA) in an aqueous solution has been shown to be responsible for the hardening of a calcium phosphate cement

Exchange Bias Relaxation in CoO-Biased Films

May 1, 2000

Author(s)

Robert McMichael, Chang H. Lee, Mark D. Stiles, F Serpa, P J. Chen, William F. Egelhoff Jr.

Because the memory of the bias direction is carried by the antiferromagnetic order in exchange bias films, the stability of the antiferromagnetic order is

The Infrared Spectrum and Internal Rotation Barrier in HF--BF₃

May 1, 2000

Author(s)

K Nauta, R E. Miller, Gerald T. Fraser, Walter J. Lafferty

The rotationally resolved infrared spectrum of the HF stretch fundamental in combination with one quantum of internal rotationexcitation has been observed for

Temperature Dependent Kinetics of the OH/HO₂/O₃ Chain Reaction by Time-Resolved IR Laser Absorption Spectroscopy

May 1, 2000

Author(s)

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

This paper presents an extensive temperature dependent kinetic study of the catalytic HO x ozone cycle, (1) OH + O 3 -> O 2 and (2) HO 2 + O 3 -> OH + O 2

Bond-Breaking in Quantum State Selected Clusters: Inelastic and Nonadiabatic Intracluser Collision Dynamics in Ar-H₂O -> Ar + (²S)+ OH(²Π1/2, 3/2;N)

May 1, 2000

Author(s)

O Votava, David F. Plusquellic, T L. Myers, David Nesbitt

High resolution vibrationally mediated IR + UV photodissociation methods are used to investigate the dvnamics of H-OH bond breaking in quantum state selected H

Electron Injection, Recombination and Halide Oxidation Dynamics at Dye-Sensitized Metal Oxide Interfaces

May 1, 2000

Author(s)

T Heimer, Edwin J. Heilweil, C A. Bignozzi, G J. Meyer

Time-resolved infrared measurements indicate ultrafast, 350 fs electron injection from (4,4'dcb) 2Ru(NCS) 2 (1) and (5,5'dcb) 2Ru(NCS) 2 (2) to nanostructured

Ferrous Ions as Catalysts for Photochemical Reduction of CO₂ in Homogeneous Solutions

May 1, 2000

Author(s)

J Grodkowski, Pedatsur Neta

Ferrous ions are found to act as efficient catalysts for the photochemical reduction of CO 2 to CO in homogeneous solutions. Photochemical reduction is carried

Evaluation of Charge Penetration Between Distributed Multipolar Expansions

May 1, 2000

Author(s)

M A. Freitag, M S. Gordon, J H. Jensen, W J. Stevens

A formula to calculate the charge penetration energy that results when two charge densities overlap has been derived for molecules described by an effective

Experimental Determination of Electron Effective Attenuation Lengths in Silicon Dioxide Thin Films Using Synchrotron Radiation - II. Effects of Elastic Scattering

May 1, 2000

Author(s)

Y Shimada, N Matsubayashi, M Imamura, M Suzuki, Yukihiru Higashi, H Ando, H Takenaka, S Kurosawa, S Tanuma, Cedric J. Powell

The effective attenuation lengths (EALs) of photoelectrons in thin silicon dioxide films on a Si(100) substrate were measured as a function of electron energy

Hot-Electron Attenuation Lengths in Ultrathin Magnetic Films

May 1, 2000

Author(s)

R P. Lu, B A. Morgan, K L. Kavanagh, Cedric J. Powell, P J. Chen, F Serpa, W F. Egelhoff

Ballistic electron emission microscopy (BEEM) is used to measure hot electron transport across magnetic metal multilayers. Room temperature measurements in air

Experimental Determination of Electron Effective Attenuation Lengths in Silicon Dioxide Thin Films Using Synchrotron Radiation - I. Data Analysis and Comparisons

May 1, 2000

Author(s)

M Suzuki, H Ando, Yukihiru Higashi, H Takenaka, H Shimada, N Matsubayashi, M Imamura, S Kurosawa, S Tanuma, Cedric J. Powell

We have measured effective attenuation lengths (EALs) of 140 to 1100 eV electrons in ultrathin silicon dioxide layers using synchrotron radiation. These EALs

Process Diagnostics and Thickness Metrology Using in Situ Mass Spectrometry for the Chemical Vapor Deposition of W from H₂/WF₆

May 1, 2000

Author(s)

T Gougousi, Y Xu, J N. Kidder, G W. Rubloff, Charles R. Tilford

Quadrupole mass spectrometry has been used to monitor reactant and product partial pressures in a selective W chemical vapor deposition (CVD) process. A 4/1 Hl

Normalized Parameter Relating the Spherical Aberration of a Thin Lens to the Diffraction Limit and Fiber Coupling

May 1, 2000

Author(s)

M. Young

In this paper, we calculate the transverse spherical aberration TA of a thin lens and defines a normalized aberration Y equal to TA divided by the theoretical

Switching in Spin-Valve Devices in Response to Subnanosecond Longitudinal Field Pulses

May 1, 2000

Author(s)

Shehzaad F. Kaka, Stephen E. Russek

We have fabricated spin-valve devices in a high-speed test structure that allows subnanosecond pulsed field excitation and high-bandwidth observation of the

Magnetic depth profiling Co/Cu multilayers to investigate magnetoresistance (invited)

May 1, 2000

Author(s)

D. Tulchinsky, Michael H. Kelley, J. Bass, John Unguris, Joseph Dura, Julie Borchers, Charles Majkrzak, S. Y. Hsu, R. Loloee, W. P. Pratt

Effect of the Interfacial Transition Zone on the Conductivity of Portland Cement Mortars

May 1, 2000

Author(s)

J D. Shane, T Mason, D A. Jennings, Edward Garboczi, Dale P. Bentz

The electrical conductivity of portland cement mortars was determined experimentally as a function of the volume fraction of sand and degree of hydration. The

Probing Protein Interaction Through Crystal Growth Structure, Mutation, and Mechanism in Subtilisin s88

May 1, 2000

Author(s)

Q Pan, David Travis Gallagher

Observations of systematic variation in the shapes of protein crystals have unique potential to report chemical effects on protein-protein interactions, because

Was this page helpful?