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Displaying 9476 - 9500 of 13224

1998 TREC-7 Spoken Document Retrieval Track Overview and Results

October 26, 1998
Author(s)
John S. Garofolo, Ellen M. Voorhees, C G. Auzanne, Vincent M. Stanford, B A. Lund
This paper describes the 1998 TREC-7 Spoken Document Retrieval (SDR) Track which implemented an evaluation of retrieval of broadcast news excerpts using a combination of automatic speech recognition and information retrieval technologies. The motivations

Dictionary of Algorithms and Data Structures

October 1, 1998
Author(s)
Paul E. Black
… hosted by the Software and Systems Division, Information Technology Laboratory, NIST. Development of this dictionary started in 1998 under the editorship of Paul E. Black. This is a …

14 C Measurements of Sub-Milligram Carbon Samples From Aerosols

August 1, 1998
Author(s)
R Weissenbok, S R. Biegalski, D Klinedinst, R Golser, George A. Klouda, W Kutschera, A Priller, William N. Rom, P Steier, E Wild, Lloyd A. Currie, R F. Sekerka
… USA, prepared at the National Institute of Standards and Technology [NIST]. … 14C in urban snow, aerosol chemistry, carbon isotope, combustion …

Analytical/Experimental Study of Vibration of a Room-Sized Airspring-Supported Slab

March 1, 1998
Author(s)
H Amick, B Sennewald, E C. Teague, Brian R. Scace
… reports the results of the finite element analysis and in-situ testing of a large-scale (4 m x 10 m) pneumatically … laboratories at the National Institute of Standards and Technology (NIST) in Gaithersburg, MD. Results include computed and measured …

Vibration of a Room-Sized Airspring-Supported Slab

January 1, 1998
Author(s)
H Amick, B Sennewald, N C. Pardue, E C. Teague, Brian R. Scace
… reports the results of the finite element analysis and in situ testing of a large-scale (4 m x 10 m) pneumatically … laboratories at the National Institute of Standards and Technology (NIST) in Gaithersburg, MD. Data include computed and measured mode …

Superconducting Microcalorimeter X-ray Spectrometers

June 1, 1997
Author(s)
John M. Martinis, David A. Wollman, Kent D. Irwin, Gene C. Hilton
… A revolutionary advance in x-ray microanalysis will occur in the next few years due to the development of new x-ray … We discuss the basic operating principle of this new technology and present microanalysis data taken with the …

Mass Metrology at NIST

April 23, 1997
Author(s)
Zeina J. Kubarych
… The mission of the mass group of the Automated Production Technology Division at NIST is to maintain the mass unit, … for measurements of mass, solid density and volume. In addition, the group collaborates with the Electricity …

Inhibition of Premixed Methane-Air Flames by Iron Pentacarbonyl

July 31, 1995
Author(s)
Gregory T. Linteris, G. Gmurczyk
… however, the production of these chemical was halted in January 1994. Although testing and development of possible … Division at the National Institute of Standards and Technology (NIST) is conducting research to identify new …

Development Plan: Configuration Management Systems and Services

January 1, 1990
Author(s)
Sanford P. Ressler, Susan Katz
… was established at the National Institute of Standards and Technology (NIST) in 1988 under the sponsorship of the U.S. Department of … goal of the Testbed is to provide technical leadership in a national effort to implement a complete and useful …

Calorimetric and Visual Measurements of R123 Pool Boiling on Four Enhanced Surfaces.

November 1, 1995
Author(s)
Mark A. Kedzierski
… This permitted 20 sheathed thermocouples to be embedded in the copper for accurate heat transfer measurements. The … was investigated. The fluid heating condition results in heat fluxes that are as much as 32% greater than those … building technology, electric resistance heating, enhanced heat …

Three-dimensional Scanning Optical Tweezers

December 5, 2005
Author(s)
Thomas W. LeBrun, T W. Hwang, I Y. Park, Jun-Feng Song, Yong-Gu Lee, Nicholas G. Dagalakis, Cedric V. Gagnon, Arvind K. Balijepalli
… We foresee that such calculation method will be developed in the near future. One of the candidates for implementing … can be built by using actuators with a scanning frequency in the order of a hundred Hertz. We need fast scanners to stably trap an object. In this study, we present our design of such SOT. The SOT …

Fully transparent GaN/InGaN LED as a position sensitive detector

August 11, 2025
Author(s)
Christine McGinn, Keith Behrman, Emily Bittle, Pragya Shrestha, Qingyuan Zeng, Vikrant Kumar, Christina Hacker, Ioannis Kymissis
… technologies have an increasing need for an accurate, in-situ beam locator to ensure laser alignment during operation. In this work, gallium nitride LED with indium gallium nitride … to successfully and repeatably locate 405 nm laser light in two dimensions in the PSD area with a best observed limit …

Certification of Standard Reference Material(R) 965c Glucose in Frozen Human Serum

March 13, 2025
Author(s)
Amanda Bayless, William Davis, Elena Wood, Abraham Kuri Cruz, Johanna Camara, Blaza Toman, Komal Dahya, Katherine Earl, Chui Tse, Uliana Danilenko, Hubert Vesper
… Standard Reference Material (SRM) 965c Glucose in Frozen Human Serum is intended for use in validating methods for the determination of glucose in … between the National Institute of Standards and Technology (NIST) and the Division of Laboratory Sciences, … of Standard Reference Material(R) 965c Glucose in Frozen Human Serum …

Characterizing the Broadband RF Permittivity of 3D-Integrated Layers in a Glass Wafer Stack from 100 MHz to 30 GHz

July 30, 2024
Author(s)
Jacob Pawlik, Tomasz Karpisz, Nicholas Derimow, Sarah Evans, Jim Booth, Nate Orloff, Chris Long, Angela Stelson
… determining the permittivity of dielectric materials in 3D integrated structures at broadband RF frequencies. With … measuring the electrical properties of dielectrics used in integrated circuits are critical. We outline an on-wafer … the Broadband RF Permittivity of 3D-Integrated Layers in a Glass Wafer Stack from 100 MHz to 30 GHz …

Effects of Non-Sinusoidal Current PhaseRelationships on Single Flux Quantum Circuits

March 1, 2024
Author(s)
Miranda Thompson, Manuel Castellanos Beltran, Pete Hopkins, Paul Dresselhaus, Samuel Benz
… While the relationship between current and phase in a Josephson junction is canonically assumed to be … This current-phase relationship (CΦR) is investigated here in terms of circuit operation for simple digital circuits … investigation of CΦRs for various junction technologies in order to correctly simulate and optimize …

Laser tracker relative range error evaluation by the back-to-back, common path single pass, and common path double pass methods

August 16, 2023
Author(s)
Marcos Motta de Souza, Bala Muralikrishnan, Vincent Lee, Daniel S. Sawyer
… Group (DMG) at the National Institute of Standards and Technology (NIST) has a unique 60 m long length facility that … meters, laser trackers and terrestrial laser scanners. In this report, we compare three methods to evaluate the ranging error of laser trackers in this facility. These include the back-to-back, the common …
Displaying 9476 - 9500 of 13224
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