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Displaying 38851 - 38875 of 73697

Ionic Displacement Correlations From the Zero-Point Motion of Pressurized Solid Argon

May 1, 2004

Author(s)

H M. Lawler, E K. Chang, Eric L. Shirley

We have performed first principles calculations of the elastic constants and phonon dispersion for solid argon at pressure ranging from 3.1 GPa to 70 Gpa. We also report our calculations of the spatial correlation function for the ground and its pressure

Junction-Isolated Electrical Test Structures for Critical Dimension Calibration Standards

May 1, 2004

Author(s)

Richard A. Allen, Michael W. Cresswell, Loren W. Linholm

NIST is developing single-crystal reference materials for use as critical dimension (CD) calibration standards. In earlier work, these structures have been electrically isolated from the substrate by the buried insulator of a silicon-on-insulator (SOI)

Long-Term Strength of Ceramics for Biomedical Applications

May 1, 2004

Author(s)

Yu Zhang, Brian R. Lawn

The influence of slow crack growth on the initiation of radial cracks at the undersurfaces of ceramic layers on polymeric substrates is studied, with particular relevance to biomechanical systems dental crowns and hip replacement prostheses. Critical loads

Making Chlorine Greener: Investigation of Alternatives to Sulfite for Dechlorination

May 1, 2004

Author(s)

Mary Bedner, William A. MacCrehan, G. R. Helz

Mapping Polymeric Properties Using Combinatorial and High-Throughput Methods: Adhesion and Mechanical Properties

May 1, 2004

Author(s)

Aaron M. Forster, A Chiche, Martin Chiang, Christopher Stafford, Alamgir Karim

High-throughput and combinatorial methods unlock novel approaches to investigations of new materials, allowing the materials community to carry out studies that promise greater efficiency to materials discovery and optimization. To this end, we have

Measurement of Complex Impedance at High AC Voltages Using Waveforms

May 1, 2004

Author(s)

Jan Obrzut, K Kano

MEMS Sensors for HVAC&R

May 1, 2004

Author(s)

David A. Yashar, Piotr A. Domanski

MicroElectronic Mechanical Systems (MEMS) have revolutionized the market for sensors by providing small, fast-responding measurement devices at very low cost. These measurement devices have been widely accepted in many areas of engineering and have vastly

Methyl Torsional State Analysis of the Jet-Cooled Microwave Spectrum of N-Acetylglycine

May 1, 2004

Author(s)

Francis J. Lovas, R J. Lavrich, David F. Plusquellic

The microwave spectrum of N-acetylglycine was obtained using a NIST Fourier-transform microwave spectrometer equipped with a heated, pulsed-nozzle source. One conformer has been identified and its spectrum assigned. The conformer has CS point group

Modeling of a Microfluidic Analog of the Four-Roll Mill for Materials Characterization

May 1, 2004

Author(s)

Frederick R. Phelan Jr., Steven Hudson

The fluid dynamics of channel geometries for liquid state materials characterization in microfluidic devices are investigated. A pressure driven microchannel device is sought that has an adjustable flow type, approximating the function of the four-roll

Multiscale Modeling of Mechanical Response of Quantum Nanostructures

May 1, 2004

Author(s)

Vinod K. Tewary, B Yang

A multiscale Green's function method is described for modeling the mechanical response of quantum nanostructures in semiconductors. The method accounts for the discreteness of the lattice in and around the nanostructure, and uses the continuum Green's

Non-contact Electrical CD Metrology Sensor for Chrome Photomasks Featuring a Low Temperature Co-fired Ceramic Technology

May 1, 2004

Author(s)

Nadine Guillaume, Richard A. Allen, Michael W. Cresswell, Markku Lahti, Loren W. Linholm, Mona E. Zaghloul

The paper describes a non-contact capacitive-sensor metrology sensor developed to measure minimum feature sizes, also called critical dimensions (CDs), patterned on photomasks that are used in semiconductor device manufacture. Additionally, this paper

Observation of a geometrically constrained domain wall in epitaxial FCC Co small disks

May 1, 2004

Author(s)

C Vaz, L Lopez-Diaz, M Klaui, J Bland, T Monchesky, John Unguris, Z Cui

The magnetic nanostructure of epitaxial FCC Co/Cu(0 0 1) circular elements (1.7 m in diameter) has been imaged with scanning electron microscopy with polarization analysis. A closed flux configuration (quadrant configuration) is observed for most of the

On Route Exploration Capabilities of Multi-Path Routing in Variable Topology Ad Hoc Networks

May 1, 2004

Author(s)

S P. Kumar, Vladimir V. Marbukh

On the Scalability of Ad Hoc Networks: A Traffic Analysis at the Center of a Network

May 1, 2004

Author(s)

B-J Kwak, N-O Song, Leonard E. Miller

We investigate the inherent scalability problem of ad hoc networks originated from the nature of multi-hop networks. First, the expected packet traffic at the center of a network is analyzed. The result shows that the expected packet traffic at the center

Operating Characteristics of the Proposed Sampling Plans for Testing Distribution Transformers

May 1, 2004

Author(s)

O. Petersons, Ken L. Stricklett, C Hagwood

The sampling plan for efficiency testing contained in the Supplemental Notice of Proposed Rulemaking (SNOPR),Energy Conservation Program: Test Procedures for Distribution Transformers, are discussed. The proposed sampling plans test for compliance with

Operation and Reference Manual for the NIST Automated Ac/dc Calibration Systems and Software

May 1, 2004

Author(s)

Thomas E. Lipe

This document provides a reference for the NIST automated systems for the determination of the ac-dc difference of thermal converters. It presents the structure of the LabVIEW software routines that control the systems, as well as explicit instructions for

Optical Coherence Microscopy for in-situ Monitoring of Cell Growth in Scaffold Constructs

May 1, 2004

Author(s)

Marcus T. Cicerone, Joy Dunkers, N. R. Washburn, Forrest A. Landis, James A. Cooper

Tissue scaffold morphological properties are determined and correlated with osteoblast proliferation and ingrowth. Scaffold pore size and connectivity were characterized with x-ray tomography. Cell proliferation and ingrowth were measured with confocal

Overview of the TREC 2003 Novelty Track

May 1, 2004

Author(s)

Ian M. Soboroff, Donna K. Harman

Overview of TREC 2003

May 1, 2004

Author(s)

Ellen M. Voorhees

Plotting the Course of the Next VESA Flat Panel Display Measurements Standard

May 1, 2004

Author(s)

Edward F. Kelley

The Display Metrology Committee of the Video Electronics Standards Association is developing the next Flat Panel Display Measurements Standard. The document's philosophy and the standard's acceptance are reviewed. New directions will be reviewed including

Predicting the Performance of Gaseous Air Cleaners Measurements and Model Simulations From a Residential-Scale Pilot Study

May 1, 2004

Author(s)

Cynthia H. Reed, Steven J. Nabinger, Steven Emmerich

As part of an ongoing effort to evaluate the predictive capability of indoor air quality (IAQ) simulation tools, the National Institute of Standards and Technology (NIST) is evaluating the ability of the multi-zone IAQ model CONTAM to predict the

PVTx Measurements for a H 2 0 + Methanol Mixture in the Subcritical and Supercritical Regions

May 1, 2004

Author(s)

Asbat E. Bazaev, I M. Abdulagatov, Joe W. Magee, E. A. Bazaev, A E. Ramazanova, A A. Abdurashidova

Quantification of Inflammatory Cellular Responses Using Real-Time Polymerase Chain Reaction

May 1, 2004

Author(s)

L A. Bailey, N. R. Washburn, Carl G. Simon Jr., E S. Chan, Francis W. Wang

: The introduction of tissue engineering approaches for the repair and replacement of human body components extends the application and importance of synthetic materials (biomaterials). Implanted biomaterials frequently evoke inflammatory responses, and

Quantum Key Distribution With 1.25 Gbps Clock Synchronization

May 1, 2004

Author(s)

Joshua C. Bienfang, Alex J. Gross, Alan Mink, Barry J. Hershman, Anastase Nakassis, Xiao Tang, David H. Su, Charles W. Clark, Carl J. Williams, Edward W. Hagley, J Wen, R Lu

Recommendation for the Triple Data Encryption Algorithm (TDEA) Block Cipher

May 1, 2004

Author(s)

William C. Barker

[Superseded by SP 800-67 Rev. 1 (January 2012): http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910079] The selective application of technological and related procedural safeguards is an important responsibility of every Federal organization

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