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Displaying 1651 - 1675 of 2521

A Novel High-Throughput Measurement Method for Determining the Elastic Moduli of Polymer Thin Films

July 17, 2006

Author(s)

Christopher M. Stafford, C Harrison

… of this technique to a wide range of film thicknesses (20 nm to 50 mm) and moduli (5 MPa to 10 GPa). Indeed, this …

Mapping substrate/film adhesion with contact-resonance-frequency AFM

July 12, 2006

Author(s)

Donna C. Hurley, Malgorzata Kopycinska-Mueller, Eric Langlois, Tony B. Kos, Nicholas Barbosa

… adhesion. Images were acquired on a sample containing a 20 nm gold (Au) blanket film on silicon (Si)with a 1 nm …

Automated Extraction of Wind Data From ASOS (Automated Surface Observing System) Weather Reports

May 18, 2006

Author(s)

Franklin T. Lombardo, Joseph A. Main

… three stations near New York City over a period of about 20 years. …

Manipulation and sorting of magnetic particles by a magnetic force microscope on a microfluidic magnetic trap platform

July 1, 2005

Author(s)

Elizabeth Mirowski, John M. Moreland, Arthur Zhang, Stephen E. Russek, Michael J. Donahue

We have integrated a microfluidic magnetic trap platform with an external magnetic force microscope (MFM) cantilever. The MFM cantilever tip serves as a magnetorobotic arm that provides a translatable local magnetic field gradient to capture and move

Estimates of Thermal Properties for Fire Fighters' Protective Clothing Materials

June 1, 2005

Author(s)

James R. Lawson, William D. Walton

… measurements were made over a range of temperatures from 20 degrees C to 100 degrees C. Specific heat was measured …

Nanopore Formation in a Polyphenylene Low-k Dielectric

April 1, 2005

Author(s)

M S. Silverstein, Michael Shach-Caplan, Barry J. Bauer, R C. Hedden, V. J. Lee, B G. Landes

Nanometer-scale porosity is being introduced into low-k dielectrics in an attempt to achieve interlevel metal insulators with permittivities of less than 2.0. It has proven extremely difficult to describe pore formation and to characterize the porous

A Coupled Arc and Droplet Model of GMAW

January 8, 2005

Author(s)

Timothy P. Quinn, M Szanto, T Gilad, I Shai

… typical arc, the temperature of the plasma can range up to 20,000 K where there is more uncertainty in the …

Large-angle magnetization dynamics investigated by vector-resolved magnetization-induced optical second-harmonic generation

December 1, 2004

Author(s)

Thomas Gerrits, Thomas J. Silva, John P. Nibarger, Theo Rasing

… parallel to the hard axis of thin permalloy (Ni 80 Fe 20 ) films while a dc bias field is applied along the easy …

100-GHz Cooled Amplifier Residual AM and PM Noise Measurements, Noise Figure and Jitter Calculations

November 1, 2003

Author(s)

David A. Howe, J R. Ostrick

… set a lower limit on rms clock jitter of 44.2 fs in a 20-ps sampling interval if the power into the amplifier were …

Volumetric (PVT) and Calorimetric (CVVT) Measurements for Pure Methanol in the Liquid Phase

November 1, 2003

Author(s)

M M. Aliev, Joe W. Magee, I M. Abdulagatov

… densities between 699.3 and 775.6 kg?m-3, and pressures to 20 Mpa. The calorimetric-cell (70 cm3 capacity) was …

Flame Heights and Heat Release Rates of 1991 Kuwait Oil Field Fires (NIST SP 995)

March 1, 2003

Author(s)

D. D. Evans, Daniel M. Madrzykowski, G A. Haynes

… both burning and leaking in March 1991, was 14 m3/s (7,400,000 bbls/day) which is only 20 percent greater than published National Oceanic and …

R&D Investment Trends: U.S. Needs More High-Tech

March 1, 2003

Author(s)

Gregory C. Tassey

… The trade balance in goods has been in deficit for over 20 years and the high-tech portion of this trade will move …

Residual PM and AM Noise Measurements, Noise Figure and Jitter Calculations of 100 GHz Amplifiers

January 1, 2003

Author(s)

David A. Howe, J R. Ostrick

… K, 77 K, and room temperature. Amplifier gain ranged from +7 dB to +30 dB, depending on input RF power levels and … set a lower limit on rms clock jitter of 44.2 fs in a 20 ps sampling interval, if the power into the amplifier were …

The Development of Microcalorimeter EDS Arrays

November 1, 2002

Author(s)

Kent D. Irwin, James A. Beall, Steven Deiker, Gene C. Hilton, L. King, Sae Woo Nam, Dale Newbury, Carl D. Reintsema, John A. Small, Leila R. Vale

… x-ray microanalysis. With demonstrated energy resolution 20 times better than with conventional semiconductor EDS, …

Pulsed inductive microwave magnetometer

October 1, 2002

Author(s)

Anthony B. Kos, Thomas J. Silva, Pavel Kabos

… are provided by a 10 V, 55 ps risetime pulse generator; a 20 GHz digital sampling oscilloscope is used to acquire the …

Standards for Optical Imaging Systems in Forensic Laboratories

August 1, 2002

Author(s)

Jun-Feng Song, Theodore V. Vorburger, Robert A. Clary, Eric P. Whitenton, Li Ma, Susan M. Ballou

… the manufacturing of standard bullets. In January 2002, 20 RM 8240 standard bullets were manufactured at NIST's …

Separation of Large Circular DNA by Electrophoresis in Agarose Gels

January 1, 2002

Author(s)

Kenneth D. Cole, C M. Tellez

… velocity of the open circles was measured at approximately 20 kbp the order was reversed. These results indicate that …

Effect of Speciation on the Apparent Diffusion Coefficient in Nonreactive Porous Systems

December 1, 2001

Author(s)

Kenneth A. Snyder, J Marchand

… changes the apparent diffusion coefficient by no more than 20% for the systems studied. By contrast, at fixed ionic …

Amorphous Calcium Phosphate

November 1, 2001

Author(s)

Laurence C. Chow, E D. Eanes

… Amorphous structures represent about 20% of the 60 or so different mineral types formed by the …

Photocurrent Measurement of PC and PV HgCdTe Detectors

June 1, 2001

Author(s)

George P. Eppeldauer, R J. Martin

… and Technology (NIST) in the wavelength range of 5 m to 20 m. The linear PC mode preamplifier does not need any …

The Effect of Stress Interruption and Pulsed Biased Stress on Ultra-Thin Gate Dielectric Reliability

December 31, 2000

Author(s)

Bin Wang, John S. Suehle, Eric M. Vogel, J B. Bernstein

We studied the effects of stress interruption on the time-dependent dielectric breakdown (TDDB) Life distributions of 2.0 nm oxynitride gate dielectric films. TDDB tests using two different breakdown detection techniques were conducted at several gate

Balancing the Environmental and Economic Performance of Products.

November 30, 2000

Author(s)

Barbara C. Lippiatt, A S. Boyles

How do you select environmentally preferable products? Is a product environmentally preferable if it has recycled content? Is it not preferable if it offgasses during use? Are mainstream products always less preferable than products marketed and perceived

Shear Orientation of Viscoelastic Polymer-Clay Solutions Probed by Flow Birefringence and SANS

October 1, 2000

Author(s)

G Schmidt, A Nakatani, Paul Butler, Alamgir Karim, Charles C. Han

Shear-induced structural changes in complex fluids of anisotropic species are a very general problem encountered not only in polymer solutions 1 but also in liquid crystalline materials, 2,3 block copolymer melts, 1,4,5 and platelike clay suspensions. u6

The Effect of an Oxidized Gold Substrate on Alkanethiol Self-Assembly

June 1, 2000

Author(s)

John T. Woodward IV, Marlon L. Walker, Curtis W. Meuse, David J. Vanderah, G Poirier, Anne L. Plant

… alkanethiol monolayer, and the diameter of the islands is 20 -200 nm. These islands are easily pushed aside during …

NIST Facility for Spectral Calibration of Detectors: Calibration of Arsenic-Doped Silicon-Blocked Impurity Band Detectors

April 1, 2000

Author(s)

Adriaan C. Carter, Steven R. Lorentz, Timothy M. Jung, Beverly Klemme, Raju V. Datla

… The calibrations were performed in ultra-high vacuum in a 20 K background environment by making direct intercomparisons …

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