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Displaying 576 - 600 of 1910

Effect of ammonium polyphosphate to aluminum hydroxide mass ratio on the properties of wood- flour/polypropylene composites

November 14, 2017
Author(s)
Mauro Zammarano
… ratios and at a constant total flame retardant loading of 30 % by mass. Water soaking tests were carried out to measure … affected by the APP to ATH mass ratio. The addition of 30 % by mass of APP and/or ATH to the neat WPCs (no flame … in impact strength was observed in the WPCs containing 30 % mass of ATH, as compared to the neat WPCs. Cone …

An Octacalcium Phosphate Forming Cement

April 16, 2010
Author(s)
Milenko Markovic, Laurence C. Chow
… = 6.1 ± 0.1 ) as the cement liquid. Hardening time was (30 ± 1) min for the CPC mixed with water and (5 ± 1) min for … and (42.52 ± 2.15) vol % after 3 d, respectively, and (4.30 ± 0.60) MPa and (41.38 ± 1.65) vol % after 7 d, … OCP + HA formation increased with immersion time from 30 mass % after 1 d to 35 mass % after 3d and to 45 mass % …

Structural Analysis of the Telomerase RNA Pseudoknot Domain by Raman Spectroscopy

March 1, 2006
Author(s)
Donald H. Atha, G Niaura, Vytautas Reipa
… measured the Raman band intensities and frequencies of two 30-mer ribonucleotides that represent the wild type (WT) and … From these results we have determined that the DKC mutant 30-mer exhibits a lower stability in the pentaloop region than the wild type 30-mer. These results demonstrate that Raman band intensities …

Real-Time Flashover Prediction Model for Multi-Compartment Building Structures Using Attention Based Recurrent Neural Networks

March 17, 2023
Author(s)
Wai Cheong Tam, Eugene Yujun Fu, Jiajia Li, Richard D. Peacock, Paul A. Reneke, Thomas Cleary, Grace Ngai, Hong Va Leong, Michael Xuelin Huang
… for flashover predictions with a lead time setting of 30 s and 60 s, respectively. Additional model testing is … 82.7 % and 85.6 % for cases with the lead time of setting 30 s and 60 s, respectively. Results from this study show …

Calculated Performance of Low-Porosity Regenerators at 4 K with He-4 and He-3

June 9, 2008
Author(s)
Ray Radebaugh, Yonghua Huang, Agnes A. O'Gallagher, John M. Gary
… for parallel holes in a rare-earth matrix operating at 30 Hz frequency using either helium-3 or helium-4. A … of a helium-3 regenerator with 0.2 porosity operating at 30 Hz and 0.5 MPa average pressure is about 3.8 times higher …

Strain Relaxation in Patterned Strained Silicon Directly on Insulator Structures

December 19, 2005
Author(s)
R Z. Lei, W Tsai, I Aberg, T B. O'Reilly, J L. Hoyt, D A. Antoniadis, H I. Smith, Albert J. Paul, Martin L. Green, J Li, R Hull
… lithography, biaxially-strained SSDOI substrates with 30 nm-thick strained Si on insulator films were patterned … ensures that the Raman signal originates from the top 30 nm-thick Si film. Raman analysis of the SSDOI gratings …

Broadband Josephson Voltage Standards

May 20, 2001
Author(s)
Clark A. Hamilton, Samuel P. Benz
… of junctions to raise the voltage to 10 V. During the last 30 years metrologists have reduced the uncertainty in dc … generator that can be triggered at frequencies fro dc to 30 GHz, and that produces short (~50 ps) voltage pulses with …

Interferometric measurement of refractive-index change in photosensitive glass

April 1, 2001
Author(s)
Tasshi Dennis, E. M. Gill, Sarah L. Gilbert
We report on a technique for determining the change in the refractive index of photosensitive glass. We have demonstrated our interferometer-based technique on fiber preform and bulk glass samples, achieving an optical: path-difference (OPD) repeatability

Certification of Standard Reference Material(R) 1568c Rice Flour

July 29, 2022
Author(s)
Chuck Barber, Colleen E. Bryan Sallee, Monique Johnson, Shaun Kotoski, Rick L. Paul, Nicholas Sharp, Maria Isabel Vega Martinez, James H. Yen, Lee L. Yu, Laura Wood, John Sieber, Stephen Long
… SRM 1568c Rice Flour which has value assignments for over 30 analytes, including arsenic species. This material is …
Displaying 576 - 600 of 1910
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