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Displaying 6901 - 6925 of 13218

Analytical Methods and Development of Reference Materials for Toxic Metals and Metal Species in Food and Dietary Supplements

September 18, 2017
Author(s)
Stephen E. Long, Michael B. Ellisor, Frances Nilsen, Laura J. Wood, Karen E. Murphy, Lee L. Yu
… such as arsenic, cadmium, lead and mercury are prevalent in the terrestrial and marine environments from both natural … can often occur during agricultural production and food manufacturing processes, and exposure to these metals can … these metals and their chemical species, their occurrence in food materials and dietary supplements, and applicable …

Non-Uniform Sampling for All: More Spectral Quality, Less Measurement Time

June 30, 2017
Author(s)
Frank Delaglio, Gregory S. Walker, Kathleen A. Farley, Raman Sharma, Jeffrey C. Hoch, Luke Arbogast, Robert Brinson, John Marino
… Resonance (NMR) spectroscopy is an indispensable tool in pharmaceutical science, with uses in drug discovery, development, and manufacturing. Non-Uniform Sampling (NUS) is an acquisition …

Laser Trackers for Large Scale Dimensional Metrology: A Review

March 25, 2016
Author(s)
Balasubramanian Muralikrishnan, Steven D. Phillips, Daniel S. Sawyer
… are now recognized as the measurement tool of choice in the manufacture and assembly of large components. While … of laser trackers. We survey reported literature in all areas of laser trackers as applied to large scale …

The CALPHAD method and its role in material and process development

February 26, 2016
Author(s)
Ursula R. Kattner
… Successful design of materials and manufacturing processes requires the availability of reliable … development of thermodynamic and property databases, that in conjunction with extrapolation methods of the descriptions … from CALPHAD calculations have been shown to be invaluable in the design of new materials. This review presents an …

Dietary Supplement Laboratory Quality Assurance Program: Exercise K Final Report

January 6, 2015
Author(s)
Melissa M. Phillips, Catherine A. Rimmer, Laura J. Wood
… Quality Assurance Program (DSQAP) was established in collaboration with the National Institutes of Health (NIH) Office of Dietary Supplements (ODS) in 2007 to enable members of the dietary supplements … regulations including the dietary supplement current good manufacturing practices (cGMPs). Exercise K of this program …

Light Scattering Methods

April 9, 2011
Author(s)
Theodore V. Vorburger, Richard M. Silver, Rainer Brodmann, Boris Brodmann, Jorg Seewig
… and optical components as well as surfaces produced in semiconductor manufacturing are primarily reviewed here. Several …

Switching-off Hydrogen Peroxide Hydrogenation in the Direct Synthesis Process

February 20, 2009
Author(s)
Andrew A. Herzing, Jennifer Edwards, Benjamin Solsona, Edwin Ntainjua, Albert F. Carley, Graham J. Hutchings, Christopher J. Kiely
… of anthraquinones. However, a direct process in which hydrogen and oxygen are reacted would be preferable. … of hydrogen peroxide. Hence, when used in the direct synthesis of hydrogen peroxide, the acid … Switching-off Hydrogen Peroxide Hydrogenation in the Direct Synthesis Process …

Dynamic Material Properties for Machining Simulation Using the NIST Pulse-Heated Kolsky Bar

October 16, 2008
Author(s)
Richard L. Rhorer
… processes is important for economically implementing new manufacturing processes such as high-speed milling or … will provide the required output prior to investing in expensive equipment is vital. All machining process … material properties at elevated temperatures useful in machining models. Stress-strain curves for AISI 1045 steel …

Traceability in Nuclear Medicine

October 16, 2008
Author(s)
Brian E. Zimmerman, Steven Judge
… Accurate, reproducible measurement of radioactivity in nuclear medicine applications is vital to ensuring the … sources. The need to maintain a high degree of confidence in those measurements requires that they be carried out so as … to be traceable to national and international standards. In addition, measurement traceability for radioactivity in …

Dynamic Material Properties for Machining Simulation Using the NIST Pulse-Heated Kolsky Bar

January 1, 2003
Author(s)
Richard L. Rhorer
… processes is important for economically implementing new manufacturing processes such as high-speed milling or … will provide the required output prior to investing in expensive equipment is vital. All machining process … material properties at elevated temperatures useful in machining models. Stress-strain curves for AISI 1045 steel …

Towards Unambiguous Specifications: Five Alternative Job Control Models for An Object-Oriented, Hierarchical Shop Control System

September 1, 1999
Author(s)
David Flater, Edward J. Barkmeyer Jr., Evan K. Wallace
… In a distributed, object-oriented, hierarchical shop control … Although each is attempting to serve the same purpose in the same context, the five ways of viewing the system lead … the control model when designing an object-oriented manufacturing system. … In Proceedings of the 1999 ASME Design Engineering Technical …

Thermal Expansion and Its Effect on the Normal Force for a Modified Force Rebalance Transducer

January 1, 1999
Author(s)
Carl R. Schultesiz, G B. McKenna
… Prior work in this laboratory [Niemiec, et al, J. Rheology, 40, 323-334 … (1996)] showed that anomalous normal forces could arise in rotary shear measurements when thermal expansion of the … heating results from the current to the magnetic coils in the FRT necessary to counteract the applied torque. Partly …

Measuring the Performance and Intelligence of Systems: Proceedings of the 2000 PerMIS Workshop, August 14-16, 2000

September 1, 2001
Author(s)
A Meystel, Elena R. Messina
… (PERMIS), held at the National Institute of Standards and Technology on August 14th through the 16th, 2000. The central … by evaluation techniques other than those generally used in control systems. Presently, engineers and researchers are … of the pre-workshop e-mail discussion are put together in Part II. The papers, submitted and accepted for …

RFID Security: A Taxonomy of Risk

October 27, 2006
Author(s)
A Karygiannis, T. Phillips, A. Tsibertzopoulos
… to replace barcodes and existing pen and paper processes in areas such as asset tracking, toll collection, supply … makes security an increasingly important consideration. In most implementations, RFID is being used as a core technology to support the automation of business processes …

An Ontology of Identity Credentials Part 1: Background and Formulation

October 6, 2006
Author(s)
William I. MacGregor
… The Information Technology Laboratory (ITL) at the National Institute of Standards and Technology (NIST) promotes the U.S. economy and public … and privacy of non-national security-related information in Federal information systems. This special publication …

Guide to Computer Security Log Management

September 13, 2006
Author(s)
Karen A. Scarfone, Murugiah Souppaya
… The National Institute of Standards and Technology (NIST) developed this document in furtherance of its statutory responsibilities under the … 107-347. This publication seeks to assist organizations in understanding the need for sound computer security log …

Concepts for Automating Systems Integration

February 1, 2003
Author(s)
Edward J. Barkmeyer Jr., Allison Barnard Feeney, Peter O. Denno, David W. Flater, Donald E. Libes, Michelle P. Steves, Evan K. Wallace
… independently developed software components to communicate in order to support a business application has been altered … has undertaken a project to determine whether we now the technology to automate significant elements of the software … technical barriers that the systems engineer must overcome in developing an integrated system. Finally, it identifies a …
Displaying 6901 - 6925 of 13218
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