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precision microelectromechanical systems (MEMS) to improve measurement accuracy and throughput in scanning probe microscopy (SPM), particularly for scanning tunneling microscopy (STM) and atomic force
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. The established uncertainty benchmark for absolute JNT is 12 ppm at the triple point of water (273.15 K), with more recent measurements achieving statistical uncertainties of 3 ppm. For temperatures in the range
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called the Fire Dynamics Simulator (FDS) . FDS is a block structured Cartesian LES code for low-speed flow which uses a high-order cutcell-immersed boundary method for complex geometry and is specifically
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on sources, detectors, and timing synchronization systems that can enable entanglement distribution over metropolitan and long-haul fiber links. Beyond entanglement sources and synchronization systems, we have
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within the Quantum Measurement Division is investigating graphene metrology towards two goals: (1) to develop near-room-temperature graphene quantum Hall devices and other possible quantum electrical
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. Prabhu vprabhu@nist.gov 301.975.3657 Description Polyelectrolytes remain a poorly understood area in polymer physical chemistry. This is partially due to the strong coupling between ion-containing polymer
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in this opportunity address the problem of why it is that measurements that use different measuring principles "orthogonal measurements" sometimes return vastly different results. Problems of interest
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levels. Health care applications include screening for disease or exposure to toxins. Headspace analysis is a powerful measurement tool to characterize partitioning between blood and breath. We seek
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biological systems. Our laboratory contains two continuous wave/pulsed spectrometer systems equipped with components that improve resolution, signal to noise, and decrease sampling time (Band et al. Journal
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5235 Andrew J. Slifka andrew.slifka@nist.gov 303.497.3744 Description As hydrogen-fueled technologies gain traction throughout the world, a better set of standards is needed to govern the building