“…The advantages of electron diffraction over other methods, e.g., x-ray or neutron, arise from the extremely short wavelength (≈2 pm), the strong atomic scattering, and the ability to examine tiny volumes of matter (≈10 nm(3)). The NIST Materials Science and Engineering Laboratory has a history of discovery and characterization of new structures through electron diffraction, alone or in combination with other diffraction methods. …”
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“…The emphasis is on materials characterization at the microstructural and at the atomic and molecular levels, where NIST scientists, and researchers from industry, universities and government laboratories perform state-of-the-art x-ray measurements on a broad range of materials.…”
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“…The results of the intercomparison reveal that over a range of 50 kN to 4.5 MN, the forces realized at NIST and at PTB compare favorably. For forces up to 900 kN the agreement is within ±40 ppm; above 900 kN the agreement is within ± 100 ppm.…”
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“…Recent thermodynamic evaluations on the elements and oxides will be discussed, as well as studies in related activities at NIST.…”
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“…The validity of the algorithms has been verified through the use of synthetic data provided by the National Institute of Standards and Technology (NIST) and physical standards, with minimum differences being obtained between the certified values and calculated or measured values. …”
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“…Other chlorinated compounds were identified by comparison of their mass spectra with the data from the NIST library.…”
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“…We describe in this paper the fourth-generation watt balance at the National Institute of Standards and Technology (NIST), and report our initial determination of the Planck constant obtained from data taken in late 2015 and the beginning of 2016. …”
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“…The optimized analytical procedure yielded isotopic ratio data relative to the lead NIST 981 standard, (208)Pb/(206)Pb = 2.16664 and (207)Pb/(206)Pb = 0.914645, in good agreement both with the tabulated values and with the most recent literature data. …”
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“…In the recent trend of CAESAR competition and NIST light-weight competition, cryptographic community have witnessed the submissions of several cryptographic schemes that are build on public random permutations. …”
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“…This study aimed to validate an analytical method to determine DNA concentration using standard reference material (NIST SRM 2372) and Sprague Dawley rat and human DNA. …”
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“…Results show that the chaotic map achieves good security performance by using the perturbation operations and the generated pseudo-random numbers pass the TestU01 test and the NIST SP 800-22 test. Most importantly, it also saves 89% of hardware resources compared to conventional approaches.…”
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“…All generated keys passed the NIST randomness test. The system performance was almost independent of the EEG signals available to the eavesdropper who had full access to the public channel.…”
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“…Using SF(6) as a reaction gas on Proteus, measurements of Rb-doped NIST SRM (standard reference material) 987 solutions, with Rb/Sr ratios from 0.01–100, yield (87)Sr/(86)Sr that are indistinguishable from un-doped NIST SRM 987, demonstrating quantitative ‘chemical resolution’ of Rb from Sr. …”
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“…Certified primary reference materials of monosaccharides from NIST (Gaithersburg, MD) were used for assay calibration. …”
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“…The most interesting breakthrough in view of the recent NIST experimental violations of QED is a continuation of pioneering work by Vigier on Tight Bound States in Hydrogen. …”
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“…A critical comparison was made based on real samples including NIST-909c human serum certified sample, and five study samples. …”
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“…Forty-two compounds were detected; 39 were identified by comparison to NIST libraries. Thirty-five compounds had not been previously reported in Eruca sativa. …”
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“…Application is to the National Institute of Standards and Technology (NIST) colorimeter and an International Commission on Illumination (CIE) Illuminant A calibration. …”
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“…We report on two upgrades of our NIST/DARPA Reflectometry Facility that have given us the ability to achieve 0.1 % repeatability and 0.3 % absolute uncertainty in our reflectivity measurements. …”
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“…Research efforts at the National Institute of Standards and Technology (NIST) aimed at improving the related measurement science are discussed.…”
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