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Displaying 1 - 25 of 55508

Dealing with counts and other quantal quantities in quantity calculus

January 1, 2023
David W. Flater
Continuity is usually assumed as a defining feature of measured quantities. This premise is false for counted quantities, amount of substance, electric charge, and others that are constrained to exist in integral multiples of a quantum. A software

Health Assessment Measurements Quality Assurance Program: Exercise 7 Final Report

December 5, 2022
Chuck Barber, Carolyn Burdette, Hugh Hayes, Monique Johnson, Shaun Kotoski, Jacolin Murray, Melissa M. Phillips, Kate Rimmer, Andrea Yarberry, Laura J. Wood
The Health Assessment Measurements Quality Assurance Program (HAMQAP) was launched in collaboration with the National Institutes of Health (NIH) Office of Dietary Supplements (ODS) in 2017. HAMQAP was established to enable laboratories to improve the

Efficient chip-based optical parametric oscillators from 590 nm to 1150 nm

December 2, 2022
Jordan Stone, Xiyuan Lu, Gregory Moille, Kartik Srinivasan
Optical parametric oscillators are a ubiquitous technology used to generate coherent light at frequencies not accessible by conventional laser gain. However, chip-based parametric oscillators operating in the visible spectrum have suffered from pump-to

The Mathematics of Quantum Coin-Flipping

December 1, 2022
Carl A. Miller
An expository article (aimed at the general mathematics community) about quantum cryptography and the philosophy of applied mathematics. The article focuses on quantum coin-flipping, a research problem that has a particularly long history.

Cannabis Laboratory Quality Assurance Program: Exercise 2 Moisture Final Report

November 29, 2022
Chuck Barber, Colleen E. Bryan Sallee, Carolyn Burdette, Shaun Kotoski, Melissa M. Phillips, Walter Brent Wilson, Laura Wood
In 2020, NIST launched Cannabis Laboratory Quality Assurance Program (CannaQAP) to improve the comparability of the analytical measurements of cannabis and cannabis-derived products in forensic and cannabis (hemp and marijuana) testing laboratories

Rydberg Engineering: Recent Techniques for Sensitive Field Measurements

November 29, 2022
Drew Rotunno, Nik Prajapati, SAMUEL BERWEGER, Aly Artusio-Glimpse, MATTHEW SIMONS, chris holloway, Amy Robinson
Highly-excited Rydberg atoms have been used for International System of Unit (SI)-traceable radio-frequency (RF) electric field and power measurements, but are limited in sensitivity to order 100 $\mu$V/m/$\sqrtHz}$ by noise and linewidth issues. These

Voices of First Responders: How to Facilitate Adoption and Usage of Communication Technology - An Integrated Analysis of Qualitative and Quantitative Findings

November 28, 2022
Yee-Yin Choong, Kerrianne Buchanan, Shanee Dawkins, Sandra Spickard Prettyman
The Nationwide Public Safety Broadband Network (NPSBN) is being developed to provide a dedicated network for the use of first responders during incident response. A wave of new communication technologies compatible with the NPSBN is on the horizon, as

Digital Investigation Techniques: A NIST Scientific Foundation Review

November 21, 2022
James R. Lyle, Barbara Guttman, John Butler, Kelly Sauerwein, Christina Reed, Corrine Lloyd
This document is an assessment of the scientific foundations of digital forensics. We examined descriptions of digital investigation techniques from peer-reviewed sources, academic and classroom materials, technical guidance from professional organizations

Phase-transition-induced Thermal Hysteresis in Type-II Weyl Semimetals MoTe2 and Mo(1-x)W(x)Te2

November 19, 2022
Md Sabbir Akhanda, Sergiy Krylyuk, Diane Dickie, Albert Davydov, Fei Han, Mingda Li, Mona Zebarjadi
The resistivity versus temperature measurement is commonly used for identifying temperature-induced phase change and the resulting hysteresis loop. While the resistance is influenced by both the density of states and the carrier lifetimes, the Seebeck

Guide to a Secure Enterprise Network Landscape

November 17, 2022
Ramaswamy Chandramouli
Access to multiple cloud services, the geographic spread of enterprise Information Technology (IT) resources (including multiple data centers), and the emergence of microservices-based applications (as opposed to monolithic ones) have significantly altered

Using Business Impact Analysis to Inform Risk Prioritization and Response

November 17, 2022
Stephen Quinn, Nahla Ivy, Julie Chua, Matthew Barrett, Greg Witte, Larry Feldman, Daniel Topper, Robert Gardner
While business impact analysis (BIA) has historically been used to determine availability requirements for business continuity, the process can be extended to provide a broad understanding of the potential impacts of any type of loss on the enterprise

Engineering Trustworthy Secure Systems

November 16, 2022
Ronald S. Ross, Mark Winstead, Michael McEvilley
This publication describes a basis for establishing principles, concepts, activities, and tasks for engineering trustworthy secure systems. Such principles, concepts, activities, and tasks can be effectively applied within systems engineering efforts to
Displaying 1 - 25 of 55508