U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 21551 - 21575 of 73929

Metrology for Lab-on-a-Chip Final-Product Devices

May 12, 2013
Author(s)
Darwin R. Reyes-Hernandez, Michael W. Halter, Jeeseong Hwang
New metrology tools to measure the critical parameters of internal structures in lab on a chip devices are greatly needed in order to develop standard tests for this technology. Here we present a method that combines a custom made optical coherence

Microfluidic Synthesis of Nano-Liposomal Anesthetics

May 12, 2013
Author(s)
Wyatt N. Vreeland, Renee R. Hood, Eric Kendall, Mariana Junqueira, Julia Finkel, Don L. DeVoe
Topical anesthesia has the ability to provide painless application of pain management medications for minor procedures such as venipuncture, particularly in the pediatric population. Liposomes have been proposed as a highly advantageous nanocarrier for

Precision metrology with coherent dual frequency combs

May 12, 2013
Author(s)
Nathan R. Newbury, Esther Baumann, Ian R. Coddington, Fabrizio R. Giorgetta, Greg B. Rieker, Laura C. Sinclair, William C. Swann, Alexander M. Zolot
Frequency combs have enabled a wide range of applications because of their unique combination of coherence and broad bandwidth. The comb provides 100,000's of comb teeth at precise, well-known optical frequencies that can support broadband accurate

Testing the Reliability of Non-LTE Spectroscopic Models for Complex Ions

May 11, 2013
Author(s)
Yuri Ralchenko, S Hansen, S. Bastiani-Ceccotti, C. Bowen, H.-K. Chung, J. Colgan, F. de Gaufridy de Dortan, C. J. Fontes, F. Gilleron, J.-C. Marques, R. Piron, O. Peyrusse, M. Poirier, A. Sasaki, E. Stambulchik, F. Thais
Collisional-radiative atomic models are widely used to help diagnose experimental plasma conditions through fitting and interpreting measured spectra. Here we present the results of a code comparison in which a variety of models determined plasma

A stiff variable time step transport solver for CONTAM

May 10, 2013
Author(s)
David M. Lorenzetti, William Stuart Dols, Andrew K. Persily, Michael D. Sohn
CONTAM, a multizone model for predicting whole-building airflow and contaminant transport, has been updated to improve the speed and accuracy of its transport calculations. CVODE, a general-purpose code for solving ordinary differential equations, brings

CMSD - A Manufacturing Simulation Integration Standard: Overview and Case Studies

May 10, 2013
Author(s)
Yung-Tsun T. Lee, Frank H. Riddick, Bjoern J. Johansson
Standard representations for information entities common to manufacturing simulation could help reduce the costs associated with simulation model construction and data exchange between simulation and other manufacturing applications. This would make

Secure Sealed-Bid Online Auctions Using Discreet Cryptographic Proofs

May 10, 2013
Author(s)
Rene C. Peralta, Jose A. Montenegro, Javier Lopez
This work describes the design and implementation of an auction system using secure multiparty computation techniques. Our aim is to produce a system that is practical under actual eld constraints on computation, mem- ory, and communication. The underlying

An Interlaboratory Investigation of the Effect of Material Granularity and Sample Processing on Measurement Variability: Nutritional Elements in Cereals

May 9, 2013
Author(s)
Katrice A. Lippa, Laura J. Wood, Stefan D. Leigh, Nathanael A. Heckert
This interlaboratory study was uniquely designed to determine the effects of material granularity and sample processing techniques on the measurement variability (i.e. precision) of nutritional elements in various cereal materials. Participants were asked

Categorization of Indicators for Sustainable Manufacturing

May 9, 2013
Author(s)
Shaw C. Feng, Che B. Joung, Prabir Sarkar, John Carrell
Manufacturers around the globe have become aware of the importance of sustainable manufacturing. They are increasing their efforts to become more sustainable by using sustainability-related indicators to assess their performance; however, in these efforts

Differential cavity ring-down spectroscopy

May 9, 2013
Author(s)
Jeremie B. Courtois, Katarzyna E. Bielska, Joseph T. Hodges
We present a technique called differential cavity ring-down spectroscopy (D-CRDS) for reducing etaloning effects in a ring-down spectrometer. The method relies on alternately measuring and then subtracting intra-cavity losses associated with pairwise TEM00

Effects of fiber gripping methods on single fiber tensile tests: Parametric statistical analyses of tensile strengths and failure strains

May 9, 2013
Author(s)
Jae Hyun Kim, Nathanael A. Heckert, Walter G. McDonough, Kirk D. Rice, Gale A. Holmes
The Kolsky bar test has been widely used in measuring material response under high strain rate conditions. Initial experiments in the literature applying this test to measure single fiber properties for fibers used in soft body armor with the Kolsky bar

FACTS: A Framework for Analysis, Comparison, and Test of Standards

May 9, 2013
Author(s)
Paul W. Witherell, Sudarsan Rachuri, Anantha Narayanan Narayanan, Jae H. Lee
Open and consensus standards play a critical role in enabling globally distributed manufacturing. A close connection between standards development (supply side) and implementation strategies (demand side) is critical for widespread adoption of standards

Incorporating Biometric Software Development Kits into the Development Process

May 9, 2013
Author(s)
Karen Marshall, Ross J. Micheals, Kevin C. Mangold, Kayee K. Hanaoka
Biometric devices have emerged as pervasive and indispensable tools in facilitating security in many industries and governments worldwide—the use of these devices has consistently increased and advanced. However, advancement of the methodologies used to

Metrological Traceability for Guarded-Hot-Plate Apparatus

May 9, 2013
Author(s)
Robert R. Zarr
An approach for establishing metrological traceability for measurement results from guarded-hot-plate apparatus consistent with policy at the National Institute of Standards and Technology (NIST) is presented. A brief example for initiating met-rological

Modeling and Analysis of Single-Plate Shear Connections Under Column Loss

May 8, 2013
Author(s)
Joseph A. Main, Fahim Sadek
This paper presents a computational assessment of the behavior of single-plate shear (“shear tab”) connections in gravity frames under column loss scenarios. Two-span beam assemblies are considered under pushdown loading of the unsupported center column

Practical implementation of a test of event-based corpuscular model as an alternative to quantum mechanics

May 8, 2013
Author(s)
Sergey V. Polyakov, Alan L. Migdall, Ivo P. Degiovanni, Fabrizio Piacentini, Giorgio Brida, Marco Genovese, Paola Traina
We describe in detail the first experimental test that distinguishes between an event-based corpuscular model of the interaction of photons with matter and quantum mechanics. The test looks at the interference that results as a single photon passes through
Displaying 21551 - 21575 of 73929
Was this page helpful?