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Displaying 701 - 725 of 1910

Long-Term Environmental Fatigue of Pultruded Glass-Fiber-Reinforced Composites

October 12, 2021
Author(s)
Kate Liao, Carl R. Schultesiz, Donald L. Hunston
… all the specimen groups. For samples cyclically loaded at 30 % dry flexural strength, however, all specimens tested in … 75 C for 2400 h prior to cyclic test at load levels above 30 % of the dry flexural strength. Microscopic examination of …

Structural Alterations in the DNA of Stroma and Epithelium From the Female Breast

October 12, 2021
Author(s)
Donald C. Malins, Katie M. Anderson, Pawel Jaruga, Callie R. Ramsey, Naomi K. Gilman, Virginia M. Green, Steven W. Rostad, Joanne T. Emerman, M. Dizdaroglu
… with the known rise in breast cancer incidence between 30 and 40 years of age. However, plots of lesion … of the stromal DNA from younger women (ages 17 - 30), compared to older women (ages 50 - 62). In addition, …

Accelerated Weathering Parameters for Some Aromatic Engineering Thermoplastics

May 24, 2019
Author(s)
Li Piin Sung, James E. Pickett, Olga Kuvshinnikova, Brett Ermi
… that a 10 °C increase in temperature results in a 20 % to 30 % increase in degradation rate. There was no consistent … filters up to an irradiance of 0.75 W/m2/nm at 340 nm, 30 % to 50 % RH, and preferably at as low of temperature as …

Flame Spread Along Fences Near a Structure in a Wind Field

October 20, 2017
Author(s)
Kathryn M. Butler, Erik L. Johnsson, Marco G. Fernandez, Mariusz Zarzecki, Eric Auth
… separated from the structure by distances of 0 m, 0.30 m, 0.91 m, or 1.83 m. A wind field of 11 m/s aligned along … for 1.83 m separation distance than for either 0 m or 0.30 m. For each separation distance, a time delay was observed …

Design of a breast phantom for quantitative MRI

January 1, 2016
Author(s)
Kathryn E. Keenan, Sheye O. Aliu, Lisa J. Wilmes, David C. Newitt, Ella F. Jones, Wen Li, Michael A. Boss, Nola M. Hylton
Purpose: We present a breast phantom designed to enable quantitative assessment of measurements of T 1 relaxation time, apparent diffusion coefficient (ADC), and other attributes of breast tissue, with long-term support from a national metrology institute

Hospital Readmission by Method of Data Collection

April 11, 2013
Author(s)
Elizabeth M. Hechenbleikner, Martin A. Makary, Daniel Samarov, Jennifer L. Bennett, Susan L. Gearhart, Jonathan E. Efron, Elizabeth C. Wick
… Study Design: Using three different methods, we compared 30-day unplanned readmission rates and potentially … readmissions not found in NSQIP because of discrepancy in 30-day readmission definition(n=20) or oversight(n=11). UHC …

Verification of the Back-EMF Method for Piston Velocity Measurements

July 10, 2012
Author(s)
Ray Radebaugh, Michael A. Lewis, Peter E. Bradley
… constant of the motor. Measurements were made at 16 Hz, 30 Hz, and 60 Hz in both compressors. Our results show that … laser position sensor showed abnormal behavior (20 % to 30 % deviations) for strokes less than about 20 % of full …

2-Bromo-3,3,3-Trifluoropropene: OH Reaction Rate Constant, IR Absorption Spectrum, Ozone Depletion Potentials and Global Warming Potentials

December 30, 2011
Author(s)
Kenneth O. Patten, Victor Khamaganov, Vladimir L. Orkin, Steven L. Baughcum, Donald J. Wuebbles
… Atmosphere Community Climate Model for land emissions from 30 to 60 °N and from 60 °S to 60 °N. The global, annual … in either emission scenario, 27% of the ozone loss in the 30 to 60 N scenario and 46% of the ozone loss in the 60 S to …

Measurement Science Roadmap for Net-Zero Energy Buildings

March 18, 2010
Author(s)
Joan Pellegrino, Arthur H. Fanney, Andrew K. Persily, Piotr A. Domanski, William M. Healy, Steven T. Bushby
… is possible to reduce a building s energy consumption by 30 to 50%. Additional reductions of 20 to 30% can be realized through the use of advanced technologies …

Structural alterations in breast stromal and epithelial DNA: the influence of 8,5'-cyclo-2'-deoxyadenosine

June 1, 2006
Author(s)
K. M. Anderson, Pawel Jaruga, C. R. Ramsey, N. K. Gilman, V. M. Green, S. W. Rostad, J. T. Emerman, M Miral Dizdar, D. C. Malins
… +/- 0.02 lesions/10(6) bases) occurred in women ages 17 to 30. The highest concentration (0.13 +/- 0.07 lesions/10(6) … differences in the stromal DNA between the women under 30 and those over 50. These findings imply that distortions …

Effect of Self-Assembled Monolayer Film Order on Nanofriction

May 11, 2006
Author(s)
S Sambasivan, S Hsieh, Daniel A. Fischer, Stephen M. Hsu
Self-assembled monolayers (SAMs) have increasingly being explored as potential protective films in devices friction and adhesion. However, accurate determination of the nanomechanical properties of monolayer films is difficult and fraught with

2020 Cybersecurity and Privacy Annual Report

September 28, 2021
Author(s)
Patrick D. O'Reilly, Kristina Rigopoulos, Larry Feldman, Greg Witte
… 2020 (FY 2020), from October 1, 2019 through September 30, 2020, the NIST Information Technology Laboratory (ITL) …
Displaying 701 - 725 of 1910
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