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Displaying 501 - 525 of 617

Determination of molecular mass 302 polycyclic aromatic hydrocarbons in Standard Reference Material 1597a by reversed-phase liquid chromatography and constant energy synchronous fluorescence spectroscopy

July 3, 2020

Author(s)

Hugh V. Hayes, Walter B. Wilson, Anthony M. Santana, Andres D. Campiglia, Lane C. Sander, Stephen A. Wise

… statistically equivalent to the NIST reported values (P = 95%; N1 = N2 = 3) were obtained for ten isomers. The …

Automated Substitution Weighing Apparatus for Liquid Volume Measurement

June 26, 2019

Author(s)

John D. Wright, Sherry D. Sheckels, Joey T. Boyd

… the uncertainty of its calibrations of volumes between 3.8 L and 40 L by constructing an automated … than 2 years. The results are fully consistent with the 95 % confidence level uncertainty estimate of 0.007 % for the …

One- and Two-phase Isochoric Heat Capacities and Saturated Densities of 2-Propanol in the Critical and Supercritical Regions

March 27, 2019

Author(s)

Nikolai Polikhronidi, Rabiyat Batyrova, Ilmutdin Abdulagatov, Joe W. Magee

… and isochoric heat capacity, C_v, measurements at the 95 % confidence level with a coverage factor of k = 2 is …

Progress Towards Accurate Monitoring of Flue Gas Emissions

May 16, 2018

Author(s)

Aaron Johnson, Iosif Isaakovich Shinder, Michael R. Moldover, Joey Boyd, James Filla

… stack-like flows, but with an expanded uncertainty (95 % confidence level) in flow velocity of 0.7 %. Using the …

UNCERTAINTY IN MULTI-SCALE FATIGUE LIFE MODELING AND A NEW APPROACH TO ESTIMATING FREQUENCY OF IN-SERVICE INSPECTION OF AGING COMPONENTS

March 15, 2018

Author(s)

Jeffrey T. Fong, Nathanael A. Heckert, James J. Filliben, Stephen W. Freiman

… that the one-sided Lower Tolerance Limit ( LTL ), at 95 % confidence level, of the fatigue life, i.e., the minimum …

Estimating Error Rates for Firearm Evidence Identifications in Forensic Science

March 1, 2018

Author(s)

Jun-Feng Song, Theodore V. Vorburger, Wei Chu, James H. Yen, Johannes A. Soons, D Ott, Nien F. Zhang

… and known non-matching image pairs. Another test on 95 cartridge cases from a different population of slides also …

An Assessment of Efficient Water Heating Options for an All-Electric Single Family Residence in a Mixed Humid Climate

December 1, 2016

Author(s)

Elizabeth C. Balke, William M. Healy, Tania Ullah

… while the baseline resistance water heater has a COP of 0.95. Impacts on space conditioning are also investigated by …

Thermodynamic Properties at Saturation Derived from Experimental Two-Phase Isochoric Heat Capacity of 1-Hexyl-3-methylimidazolium bis[trifluoromethyl)sulfonyl]imide

October 27, 2016

Author(s)

Joe W. Magee, N. G. Polikhronidi, Rabiyat G. Batyrova, I M. Abdulagatov, J. Wu

… density and isochoric heat capacity measurements at the 95 % confidence level with a coverage factor of k = 2 is …

Implementing the ISO 15746 Standard for Chemical Process Optimization

July 3, 2016

Author(s)

Guodong Shao, Peter O. Denno, Albert T. Jones, Yan Lu

Integrating advanced process control solutions with optimization (APC-O) solutions, within any factory, enables more efficient production processes. Currently, vendors who provide the software applications that implement control solutions are isolated and

Role of Elastic Strain on Electrocatalysis of Oxygen Reduction Reaction on Pt

July 23, 2015

Author(s)

Gery R. Stafford, Vijay Sethuraman, Deepa Vairavapandian, Manon C. Lafouresse, Tuhina Maark, Naba Karan, Shouheng Sun, Ugo Bertocci, Andrew Peterson, Pradeep Guduru

… stress in the de-alloyed layer is estimated to be 4.95 ± 1.3 GPa, which corresponds to an elastic strain of 1.47 …

High-dimensional hyperentanglement of mode-locked two-photon states

June 29, 2015

Author(s)

Zhenda Xie, Tian Zhong, Sajan Shrestha, XinAn Xu, Junlin Liang, Yan-Xiao Gong, Alessandro Restelli, Jeffrey Shapiro, Franco N. Wong, Chee Wei Wong, Joshua Bienfang

… observed in a Franson interferometer, [2] with up to 97.8% visibility. Stabilized hyperentanglement is further … bases, with simultaneous Bell violations up to 10.95 and 8.34 standard deviations in the polarization and …

Rapid PCR Protocols for Forensic DNA Typing on Six Thermal Cycling Platforms

August 22, 2014

Author(s)

Peter Vallone, Erica Romsos

… protocols were evaluated for the 6 thermal cyclers on 95 unique single-source DNA extracts. Capillary …

Complex Structures of Different CaFe 2 As 2 Samples

February 18, 2014

Author(s)

Bayrammurad Saparov, Claudia Cantoni, Minghu Pan, Thomas C. Hogan, William D. Ratcliff, Stephen D. Wilson, Katharina Fritsch, Bruce D. Gaulin, Athena S. Sefat

… tetragonal, and collapsed tetragonal) coexist between T s =95 K and 45 K manifesting a small broad peak in high …

International Comparison of Surface Roughness, APMP.L-K8

June 17, 2013

Author(s)

Andrew Baker, Siew-Leng Tan, Richard Leach, Lena Jung, Seung Yin Wong, Anusorn Tonmueanwai, Kazuya Naoi, Jaewan Kim, Thomas Brian Renegar, K P Chaudhary, Louise Mostert, Mohamed Amer, Sitian Gao, Chin-Lung Tsai, Ngo N. Anh, Augustinus Drijarkara

… C and type D profiles have nominal Ra values of 0.2 μm, 0.95 μm, 1.5 μm and 3.1 μm. Two softgauges were also circulated …

Characterization of Perchlorate in a New Frozen Human Urine Standard Reference Material

October 1, 2012

Author(s)

Lee L. Yu, William C. Davis, Rabia Oflaz, Gregory C. Turk, Jeff M. Jarrett, Liza Valentin, Benjamin C. Blount, Dennis D. Leber, Eric L. Kilpatrick

Perchlorate, an inorganic anion, has recently been recognized as an environmental contaminant by the U.S. Environmental Protection Agency (EPA). Assessment of human exposure to perchlorate requires measurement of the anion in urine. Although the

Small Business Information Security: the Fundamentals

October 1, 2009

Author(s)

Richard L. Kissel

… States, the number of small businesses totals to over 95% of all businesses. The small business community produces …

Measurements of the isochoric heat capacity, the critical point (Tc, pc) and vapor-liquid coexistence curve (Ts, ps) of high-purity toluene near the critical point

January 15, 2008

Author(s)

Ilmutdin Abdulagatov, Nikolai G. Polikhronidi, Thomas J. Bruno, Rabiyat G. Batyrova, Genadii V. Stepanov

… made at three selected liquid and vapor isochores (777.8, 555.25, and 214.64) kg×m -3 in the temperature range from … reported in this paper are expanded uncertainties at the 95 % confidence level with a coverage factor of k=2. The …

Growth of Nanocrystalline Ceria Studied Using a USAXS Capillary Flow-Cell

July 1, 2006

Author(s)

Vincent A. Hackley, Andrew J. Allen, P R. Jemian, J M. Raitano, S W. Chan

… 12 hr. Previous TEM studies (Zhang, et al., J. App. Phys. 95 4319-4326, 2004) have shown that particles are single …

Perceptual Study of the Impact of Varying Frame Rate on Motion Imagery Interpretability

March 1, 2006

Author(s)

Charles D. Fenimore, J Irvine, D Cannon, John W. Roberts, A Aviles, S Israel, Michelle Brennan, L Simon, J Miller, Donna Haverkamp, P F. Tighe, Michael Gross

… significant effect on image interpretibility (at the 95% level), while the speed and background showed no …

Characterization of Ordered Mesoporous Silica Films Using Small-Angle Neutron Scattering and X Ray Porosimetry

March 1, 2005

Author(s)

B D. Vogt, R A. Pai, V. J. Lee, R C. Hedden, Christopher L. Soles, Wen-Li Wu, Eric K. Lin, Barry J. Bauer, J J. Watkins

… of the precursor. The wall density was determined to be (1.95 +/- 0.05) g cm(-3) and the overall porosity was found to …

The NIST 3 Megawatt Quantitative Heat Release Rate Facility - Description and Procedures

September 1, 2004

Author(s)

Rodney A. Bryant, Thomas J. Ohlemiller, Erik L. Johnsson, Anthony P. Hamins, B S. Grove, William F. Guthrie, Alexander Maranghides, George W. Mulholland

… brief peaks as high as 5 MW. The expanded uncertainty (95 % confidence interval) is 11 % of the heat release rate …

NIST Bullet Signature Measurement System for RM (Reference Material) 8240 Standard Bullets

July 1, 2004

Author(s)

Li Ma, Jun-Feng Song, Eric P. Whitenton, Theodore V. Vorburger, J Zhou, A Zheng

… values for the 240 signature measurements are higher than 95%, with most of them even higher than 99%. These results …

Isostructural Self-Assembled Monolayers, Part 2. Methyl-1-(3-Mercaptopropyl)-Oligo(Ethylene Oxide)s

February 17, 2004

Author(s)

David J. Vanderah, T Parr, Vitalii I. Silin, Curtis W. Meuse, Richard S. Gates, H La, Gintaras Valincius

… Au-sulfur headgroup by a polymethylene chain. For x = 4, 8 and 9, the SAMs are largely helical but show evidence of … order as a function of immersion time from 100% water and 95% ethanol indicate that the HSCH2CH2CH2O(EO)5 7CH3 SAMs, …

Micropatterning of Organosilane Self-Assembled Monolayers with Gradient Surfaces for Advanced SPM Nanometrology

February 1, 2004

Author(s)

D Julthongpiput, Michael J. Fasolka

… resulting gradient shows a range of contact angles from 25-95 .These gradient energy substrates with chemical patterns …

The NIST 3 Megawatt Quantitative Heat Release Rate Facility

January 12, 2004

Author(s)

Rodney A. Bryant, Thomas J. Ohlemiller, Erik L. Johnsson, Anthony P. Hamins, B S. Grove, William F. Guthrie, Alexander Maranghides

… brief peaks as high as 5 MW. The expanded uncertainty (95 % confidence interval) is 11 % of the heat release rate …

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