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on fundamental constants in the development of quantum electrical standards. The FEM group uses physical laws, quantum invariants, and ultra-precision measurement techniques to create and refine a core set of
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, while maintaining traceability to the SI with low overall uncertainty (~ 0.1 %). Longer-term plans include development of complementary absolute activity methods, such as coincidence counting and defined
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within the Radioactivity Group at NIST addresses some of these hurdles in an effort to provide the foundations for absolute quantitation in imaging. NIST pioneered the development of long-lived calibration
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sample preparation equipment (including cross-sections) and also an ability to fabricate prototype devices using electron lithography. The current topics of interest include the process development and
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double-crystal diffraction instrument combined with a high-power, demountable x-ray source and a vacuum compatible hybrid pixel area detector. Decades of development of instrumentation for cutting edge x
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physiologically relevant in vitro 3D cell cultures with controlled expressions of endogenous biomarkers; (4) development of optical measurement techniques and standards for quantitative characterization
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been in development over the past 15+ years and their capabilities have grown significantly. An important effort within the LPBF community is the use of high-fidelity multiphysics models to predict melt
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to differentiated states. This project involves a team working in live cell imaging, data analysis, and probabilistic model development. References Sisan D.R., et al. (2012) Predicting rates of cell state change due
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methods, and digital signal processing and network modeling. Other research topics are High-Tc superconductive Josephson junction array waveform synthesizers and compact cryogenic design for the development
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properties. While our focus is on industrially important fluids, such as fuels and refrigerants, we also welcome proposals that would yield data primarily intended for model development, such as studies