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Displaying records 11 to 20 of 815 records.
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11. Improved Model for Three-Dimensional Virtual Concrete: Anm Model
Topic: Chemistry
Published: 5/8/2015
Authors: Edward Joseph Garboczi, Yang Lu, Stephen Thomas
Abstract: Construction aggregate particles, fine or coarse, can be mathematically characterized using spherical harmonic series and used to simulate random parking of irregular aggregates to form a virtual mortar or concrete using the Anm model. Any other simi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916509

12. Development of an Automated Multi-Injection Shotgun Lipidomics Approach using a Triple Quadrupole Mass Spectrometer
Topic: Chemistry
Published: 3/12/2015
Authors: John A Bowden, Jackie T. Bangma, John R Kucklick
Abstract: Shotgun lipidomics is a well suited approach to monitor lipid alterations due to its ability to scan for varying lipid types on a global, class and individual species level. However, the ability to perform high-throughput shotgun lipidomics has remai ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913825

13. Reference correlations for the viscosity and thermal conductivity of fluids over extended range of conditions: n-hexane in the vapor, liquid, and supercritical regions
Topic: Chemistry
Published: 3/11/2015
Authors: Richard A Perkins, Marcia L Huber, Marc J. Assael, Efthimia K. Mihailidou, Sofia K. Mylona, Evita J. Sykioti
Abstract: This article summarizes the correlation procedures developed for IUPAC Project 2012-040-1-100 (Reference correlations for the thermal conductivity and viscosity of fluids over extended range of conditions (vapor, liquid and supercritical region)). Th ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914943

14. High resolution analysis of the nu1 and nu5 bands of phosgene 35Cl2CO and 35Cl37ClCO
Topic: Chemistry
Published: 3/2/2015
Authors: Walter Joseph Lafferty, Jean-Marie Flaud, F. Kwabia Tchana, L. Manceron
Abstract: Fourier transform spectra of phosgene (Cl2CO) have been recorded in the 11.75 μm and 5.47 μm spectral regions using a Bruker IFS125HR spectrometer at resolutions of 0.00102 cm-1 and 0.0015 cm-1 respectively leading to the observation of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916489

15. Computing the Time Evolution of the Apparent Viscoelastic/Viscoplastic Poisson's Ratio of Hydrating Cement Paste
Topic: Chemistry
Published: 2/15/2015
Authors: Li xiodan, Zachary Grasley, Jeffrey W Bullard, Edward Joseph Garboczi
Abstract: A computational model has been developed that combines finite element methods with microstructure development simulations to quantitatively predict the viscoelastic/viscoplastic relaxation of cement paste due to intrinsic calcium silicate hydrate vis ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915270

16. NIST/NIH Vitamin D Metabolites Quality Assurance Program Report of Participant Results: Summer 2013 Comparability Study(Exercise 7)
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 8000
Topic: Chemistry
Published: 2/15/2015
Authors: Mary Bedner, Katrice A Lippa, Susan Shu Cheng Tai
Abstract: The National Institute of Standards and Technology (NIST) has established a Vitamin D Metabolites Quality Assurance Program (VitDQAP) in collaboration with the National Institutes of Health (NIH) Office of Dietary Supplements. Participants in the se ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915186

17. Modeling the apparent and intrinsic viscoelastic relaxation of hydrating cement paste
Topic: Chemistry
Published: 1/31/2015
Authors: Xiaodan Li, Zachary Grasley, Edward Joseph Garboczi, Jeffrey W Bullard
Abstract: Finite element procedures combined with microstructure development modeling are integrated to quantitatively predict the viscoelastic/viscoplastic relaxation of cement paste due to intrinsic calcium silicate hydrate viscoelasticity and microstructure ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913904

18. Investigating Adsorption/Desorption of Carbon Dioxide in Aluminum Compressed Gas Cylinders
Topic: Chemistry
Published: 12/18/2014
Authors: Walter R Miller Jr., George C Rhoderick, Franklin R Guenther
Abstract: Between June 2010 and June 2011, the National Institute of Standards and Technology gravimetrically prepared a suite of 20 carbon dioxide [CO2] in air primary standard mixtures [PSMs]. Ambient mole fraction levels were obtained through six levels of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916263

19. Absolute line intensities for oxirane in the 11.4 micron spectral region.
Topic: Chemistry
Published: 12/15/2014
Authors: Walter Joseph Lafferty, Jean-Marie Flaud, Fridolin Kwabia
Abstract: Absolute individual line intensities of numerous transitions of the fundamental ν15, ν12 and ν5 bands of oxirane (ethylene oxide, cyc-C2H4O) have been measured in the 790-940 cm-1 region using seven high-resolution Fourier transform sp ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914445

20. Measurement of the Electrostatic Edge Effect in Wurtzite GaN Nanowires
Topic: Chemistry
Published: 11/24/2014
Authors: Alex Henning, Benjamin Klein, Kristine A Bertness, Paul T Blanchard, Norman A Sanford, Yossi Rosenwaks
Abstract: The electrostatic effect of the hexagonal corner on the electronic structure in wurtzite GaN nanowires (NWs) was directly measured using Kelvin probe force microscopy (KPFM). By correlating electrostatic simulations with the measured potential differ ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=917310



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