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NIST Authors in Bold

Displaying 426 - 450 of 569

Are Reported Likelihood Ratios Well Calibrated?

October 8, 2019
Author(s)
Peter Vallone, Sarah Riman, Jan Hannig
… validity of such systems is a topic of ongoing interest [2], [3]. In addition to summarizing existing approaches and … American Statistical Association, 2016, Vol. 111 (515). [2] Brummer, N. Proc. Odyssey 2004 Speaker and Language … K.R., and Grgicak C.M. Forensic Sci. Int. Genet. 2018; 32: pp. 62-70 …

Degradation of sunglasses filters after long-term irradiation within solar simulator

September 18, 2019
Author(s)
Deborah Jacobs, Mauro Masili, Fernanda O. Duarte, Liliane Ventura, Christopher C. White
… was performed every 25 h of exposure. The remaining 32 samples were submitted to for 962 h of NIST SPHERE … are equivalent to wearing sunglasses for a period over 2 years, for 2 hours daily. Standards require 50 h exposure as the aging …

Thermal Effects on Critical Flow Venturis

April 14, 2015
Author(s)
John D. Wright, Aaron N. Johnson, Michael R. Moldover, Woong Kang, Liang Zhang
… of their long-term calibration stability (5 (e.g., a 2 mm throat diameter flowing air at 1 MPa), CFVs exhibit … layer effects using the correction C T = 1 + K Re -1⁄2 ({Δ}T / T 0 ) where {Δ}T is the difference between the CFV … steel and copper with diameters of 0.56 mm, 1.1 mm, and 3.2 mm for the particular CFV configuration we used. …

Improved Determination of the Neutron Lifetime

December 2, 2013
Author(s)
Jeffrey S. Nico, A. T. Yue, Maynard S. Dewey, David M. Gilliam, G L. Greene, A. Laptev, William M. Snow, F. E. Wiefeldt
… in 2005 and reported a result of tau_n = (886.3 ± 1.2 [stat] ± 3.2 [sys]) s. The dominant uncertainties were attributed to the … absolute determination of the fluence of the neutron beam (2.7 s). The fluence was measured with a neutron monitor that …

New NIST Photomask Linewidth Standard

December 1, 2002
Author(s)
James E. Potzick, J Pedulla, Michael T. Stocker
… on a 6 inch quartz substrate ( 6 ¿ 6 ¿ 0.25 inches, or 15.2 ¿ 15.2 ¿ 0.635 cm). Certified line- and space-widths range from nominal 0.250 ¿m to 32 ¿m, and pitches from 0.5 ¿m to 250 ¿m, and are traceable …

An Improved Greenspan Acoustic Viscometer

September 1, 2000
Author(s)
J Wilhelm, Keith A. Gillis, J B. Mehl, Michael R. Moldover
… out at 298.15 K and 348.15 K and at pressures up to 3.2 MPa. Without calibration, the results differed from …

Perceptual Effects of Noise in Digital Video Compression

October 1, 1998
Author(s)
Charles D. Fenimore, John M. Libert, S. A. Wolf
… of subjective viewer assessment of video quality of MPEG-2 compressed video containing wide-band Gaussian noise. The … rates ranging from 1.8 Mb/s to 13.9 Mb/s. Our panel of 32 viewers rated the difference between the noisy input and …

Microstructural Features and Metastable Phase Formation in a High-Strength Aluminum Alloy Fabricated Using Additive Manufacturing

April 25, 2025
Author(s)
Andrew Iams, Jordan Weaver, Brandon Lane, Lucille Giannuzzi, Feng Yi, Darby LaPlant, John Martin, Fan Zhang
Additive manufacturing (AM) has captured recent attention for its potential to fabricate high-strength aluminum alloy components. A detailed understanding of the microstructure under the as-fabricated conditions is required to harness its potential. We

Revisiting collisional broadening of $^85}$Rb Rydberg levels: conclusions for vapor cell manufacture

March 13, 2025
Author(s)
Mingxin Lei, Stephen Eckel, Eric Norrgard, Nikunjkumar Prajapati, Alexandra Artusio-Glimpse, Matthew Simons, Christopher Holloway
… revisit collisional broadening and shifts of both the D$_2$ line and Rydberg levels of rubidium. Specifically, we measure the broadening and shifts of the $5\rm S}_1⁄2\rightarrow 5\rm P}_3/2}$ (i.e., the D$_2$ line) and $5\rm … 5\rm P}_3/2}\rightarrow (25\rm D},27\rm S},30\rm D},32\rm S},35\rm D},37\rm S})$ transitions of $^85}$Rb due to …

Phase Transitions in Random Circuit Sampling

October 9, 2024
Author(s)
Sergio Boixo, Rene Peralta
… effective size of the Hilbert space coherently available [2–8]. Nevertheless, quantum algorithms' outputs can be … RCS experiment in the weak noise phase with 67 qubits at 32 cycles, we demonstrate that the computational cost of our …
Displaying 426 - 450 of 569
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