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Displaying 39376 - 39400 of 74223

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

Rheology, Processing and Electrical Properties of Multiwall Carbon Nanotube/Polypropylene Nanocomposites

May 1, 2004

Author(s)

S B. Kharchenko, Kalman D. Migler, Jack F. Douglas, Jan Obrzut, E A. Grulke

Dispersal of a relatively small concentration [O (1 %) volume fraction] of multiwall carbon nanotubes (MWNT) into polypropylene (PP) is found to cause large and complex changes in nanocomposite transport properties. Specifically, both the shear viscosity

Rotational Spectra, Conformational Structures and Dipole Moments of Thiodiglycol by Jet-Cooled FTMW and Ab Initio Calculations

May 1, 2004

Author(s)

L H. Xu, Q Liu, R D. Suenram, Francis J. Lovas, Angela R. Hight Walker, J O. Jensen, A C. Samuels

The rotational spectra of three low-energy conformers of thiodiglycol (TDG) (HOCH2CH2SCH2CH2OH) have been measured in a molecular beam using a pulsed-nozzle Fourier-transform microwave spectrometer. To determine the likely conformational structures with ab

Scalability of OLED Fluorescence in Consideration of Sunlight-Readability Reflection Measurements

May 1, 2004

Author(s)

Edward F. Kelley, John Penczek

The fluorescence characteristics of an OLED material are demonstrated to be linear with sunlight-like illuminance levels up to several suns. It is therefore possible to make laboratory reflection measurements with much lower illuminance levels and scale

Self Hardening Calcium Phosphate Composite Scaffold for Bone Tissue Engineering

May 1, 2004

Author(s)

H H. Xu, Carl Simon Jr.

Calcium phosphatement (CPC) sets in situ to form solid hydroxyapatite, can conform to complex cavity shapes without machining, has excellent osteoconductivity, and is able to be resorbed and replaced by new bone. Therefore, CPC is promising for

Self-Hardening Calcium Phosphate Cement-Mesh Composite: Reinforcement, Macropores, and Cell Response

May 1, 2004

Author(s)

Hockin D. Xu, Carl G. Simon Jr.

Calcium phosphate cement (CPC) self-hardens to form hydroxyapatite, has excellent osteoconductivity and bone-replacement ability, and is promising for dental, craniofacial and orthopedic repair. However, its low strength limits CPC to only non-stress

Serial Correlation of QC Data on the Use of Proper Control Charts

May 1, 2004

Author(s)

P Winkel, Nien F. Zhang

Biochemical quality control data have been reported to be autocorrelated. Serial correlation may increase the rate of false alarms and decrease that of true alarms if traditional control charts are used. In this paper, the times series were examined and

Silicon Carbide PiN and Merged PiN Schottky Power Diode Models Implemented in the Saber Circuit Simulator

May 1, 2004

Author(s)

Ty R. McNutt, Allen R. Hefner Jr., Alan Mantooth, J L. Duliere, David W. Berning, Ranbir Singh

Dynamic electrothermal circuit simulator models are developed for silicon carbide power diodes. The models accurately describe the temperature dependence of on-state characteristics and reverse-recovery switching waveforms. The models are verified for the

Simulation of the Dynamics of a Fire in the Basement of a Hardware Store- New York, June 17, 2001

May 1, 2004

Author(s)

Nelson P. Bryner, Stephen Kerber

A computer based fire model, Fire Dynamic Simulator was used to reconstruction a portion of a fire that occurred in the basement of a hardware store. A FDS model scenario was deveoped that represented the building geometry, material thermal properties, and

Spin Configuration and Classification of Switching Processes in Ferromagnetic Rings Down to Sub-100 nm Dimensions

May 1, 2004

Author(s)

C Vaz, T Monchesky, john unguris, E Bauer, S Cherifi, S Heun, A Locatelli, L J. Heyderman, Z Cui, J Bland

The magnetic states and switching processes are investigated in Co and NiFe rings with lateral dimensions from the micrometer range down to sub-100 nm. Using non-intrusive imaging techniques we have directly observed the nanoscopic details of the

Structural and Dynamic Heterogeneity in a Telechelic Polymer Solution

May 1, 2004

Author(s)

D Bedrov, G D. Smith, Jack F. Douglas

We utilize molecular dynamics simulations to investigate the implications of micelle formation on structural relaxation and polymer bead displacement dynamics in a model telechelic polymer solution. The transient structural heterogeneity associated with

Structure of C73G putidaredoxin from Pseudomonas putida

May 1, 2004

Author(s)

N Smith, M P. Mayhew, Marcia J. Holden, H Kelly, H Robinson, A Heroux, V L. Vilker, David T. Gallagher

Advanced communications
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