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Displaying 16676 - 16700 of 74053

Measuring Time and Comparing Clocks

April 1, 2016
Author(s)
Judah Levine
I will discuss methods of comparing and synchronizing clocks and the procedure of characterizing their performance in terms of the two-sample Allan variance. I will describe methods that are used when the device under test and the reference device are in

PEPR: Pipeline for Evaluating Prokaryotic References

April 1, 2016
Author(s)
Nathanael D. Olson, Justin M. Zook, Daniel V. Samarov, Scott A. Jackson, Marc L. Salit
The rapid adoption of microbial whole genome sequencing in public health, clinical testing, and forensic labo-ratories requires the use of validated and well characterized measurement processes. Reference materials thatare well characterized and

Stiff modes in spinvalve simulations with OOMMF

April 1, 2016
Author(s)
Spyridon Mitropoulos, Vassilis Tsiantos, Kyriakos Ovaliadis, Dimitris Kechrakos, Michael J. Donahue
Micromagnetic simulations are an important tool for the investigation of magnetic materials. Micromagnetic software uses various techniques to solve differential equations, partial or ordinary, involved in the dynamic simulations. Euler, Runge-Kutta, Adams

Mid-infrared molecular spectroscopy in the quantum noise limit

March 31, 2016
Author(s)
David A. Long, Adam J. Fleisher, Qingnan Liu, Joseph T. Hodges
A cavity ring-down spectrometer was used to reach the quantum noise limit in the mid-infrared spectral region. Quantum noise was observed not only in the individual ring-down decay events but also in the corresponding ensemble statistics with a magnitude

NIST Cryptographic Standards and Guidelines Development Process

March 31, 2016
Author(s)
Andrew R. Regenscheid
This document describes the principles, processes and procedures that drive cryptographic standards and guidelines development efforts at the National Institute of Standards and Technology. This document reflects public comments received on two earlier

Silicon epitaxy on H-terminated Si (100) surfaces at 250deg C

March 31, 2016
Author(s)
Xiao Deng, Pradeep N. Namboodiri, Kai Li, Xiqiao Wang, Gheorghe Stan, Alline F. Myers, Xinbin Cheng, Tongbao Li, Richard M. Silver
Silicon on silicon growth at low temperatures has become increasing important due to its use to encapsulate buried nanoscale dopant devices. The performance of atomic scale devices is fundamentally affected by the quality of the silicon matrix in which the

SOLID-STATE LIGHTING MEASUREMENT ASSURANCE PROGRAM SUMMARY WITH ANALYSIS OF METADATA

March 31, 2016
Author(s)
Carl C. Miller, Yoshihiro Ohno, Maria E. Nadal, Benjamin K. Tsai, Yuqin Zong
The National Institute of Standards and Technology (NIST) began to offer proficiency testing for Solid-State Lighting (SSL) products through a Measurement Assurance Program (MAP) in 2010. This article communicates the results of the first version of the

Thermal characteristics of temperature-controlled electrochemical microdevices

March 31, 2016
Author(s)
Nicholas M. Contento, Stephen Semancik
The development of novel, miniaturized sensing systems is driven by the demand for better and faster chemical measurements with lower power consumption and smaller sample sizes. Emerging miniature sensors, or microsensors, also offer rapid thermal and

Towards Establishing Compact Imaging Spectrometer Standards

March 31, 2016
Author(s)
David W. Allen, Elmer T. Slonecker, Ronald G. Resmini
Remote sensing science is currently undergoing a tremendous expansion in the area of hyperspectral imaging (HSI) technology. Spurred largely by the explosive growth of Unmanned Aerial Vehicles (UAV), sometimes called Unmanned Aircraft Systems (UAS), or

Using a Capability Oriented Methodology to Build Your Cloud Ecosystem

March 31, 2016
Author(s)
Michaela Iorga, Karen Scarfone
Organizations often struggle to capture the necessary functional capabilities for each cloud-based solution adopted for their information systems. Identifying, defining, selecting, and prioritizing these functional capabilities and the security components

Probing beyond the laser coherence time in optical clock comparisons

March 30, 2016
Author(s)
David B. Hume, David R. Leibrandt
We develop protocols that circumvent the laser noise limit in optical clock comparisons by synchronous probing of two clocks using phase-locked local oscillators. This allows for probe times longer than the laser coherence time, avoids the Dick effect, and
Displaying 16676 - 16700 of 74053
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