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The development of new fabrication capabilities along with new alloys, polymers, composites and advanced ceramics has revolutionized many industries including
Prediction of spurious grain formation in superalloy castings is critical for the design and development of single-crystal gas-turbine components. Here, we
Barry J. Bauer, Vardhan Bajpai, Jeffrey Fagan, Matthew Becker, Erik K. Hobbie
Size exclusion chromatography (SEC) has been used to separate single wall carbon nanotubes (SWNT) dispersed by chemical modification in organic solvents and by
A slit micro-rheometer that is used for simultaneous measurement of melt viscosities of four samples has been developed. Sample size is less than 100 mg. The
E Drescher-Krasicka, T M. Moore, T Hartfield, D Chery
Scanning acoustic microscopy has been successfully implemented for the nondestructive detection of cracks and delaminations in integrated circuit packages. In
News of recent NIST standards-related activities are presented for information to the Medical Devices Standards Board. These include the release of reference
Gery R. Stafford, Mark D. Vaudin, Thomas P. Moffat, N G. Armstrong, David R. Kelley
The recrystallization behavior of copper, electrodeposited from a copper sulfate-sulfuric acid plating bath into which various combinations of NaCl, sodium 3
Morphological evolution of a dendritic growth front in a binary alloy is simulated using a cellular automation approach to establish the feasibility of modeling
Two events that coincide in the year 2001 are the NIST centennial year anniversary and the inauguration of the SPE Special Interest Group on Process Monitoring
Kalman Migler, C L. Gettinger, V P. Thlacker, R Conway
Flow profiles of a linear density polyethylene (LLDPE) were measured in an optical slit die situated at the exit of a twin screw extruder. The velocities of
A family of nylons, nylon 6, 11 and 12, have been compounded with organo modified clays using a twin screw extruder that was instrumented with dielectric and
The Numisheet 2005 Benchmark #3 consists of a two stage forming process performed on four materials (three steels and one aluminum). Stage 1 consists of forming
Polyimide films formed on silicon by spin coating and curing of foils glued to substrates generally show a sharp surface-bound negative charge layer with a half
Technology-based competition is heating up everywhere. One economist uses the analogy-not of a race--but of a casino to convey the flavor of the global
For metals undergoing corrosion, a layer of water molecules becomes charged due to electrons accumulating on the outer metal surface and hydrated positive ions
A microscale, skyhook-type tensile-test technique has been developed to extend tensile testing to micrometer-scale specimens. This technique has been used to
Jonathan E. Guyer, Daniel Wheeler, James A. Warren
We present an object oriented partial differential equation (PDE) solver written in Python based on a standard finite volume (FV) approach.The solution of
Micelles formed of amphiphilic diblock copolymers may have applications in drug delivery and in understanding the physics of biological structures. Wormlike
David L. VanderHart, Marc R. Nyden, R G. Alamo, L Mandelkern
We have shown that under conditions of crystallization during cooling at 1C/min, substantial amounts of 'defects' of the types a) stereo-mrrm, b) regio-2,1
A previous report (Mueller, IMS, Ottawa, Canada, 1998) revealed that the modeled equivalent electrical circuits for either silver or copper surfaces were
Metrology, the science of measurement, is discussed in terms of measurements of radiant flux and associated quantities. Radiometric measurements are naturally
Establishment of traceability is necessary for placing results and estimates of their uncertainty on an absolute scale. There are a number of factors that must
A comparison of the area measurements of the limiting apertures used for total solar irradiance measurements in the Active Cavity Radiometer Irradiance Monitor
Chemical structures provide the basis for understanding and rationalizing drug discovery process fro Human diseases. The study of interactions of chemicals with
The technique of fluorine bomb calorimetry is outlined with special emphasis on the experimental methods, including the construction of the reaction vessel and
This brief description summarizes the contents, philosophy and evolution of The NIST Organic Thermochemistry Archive, a chapter of the NIST Chemistry WebBook.
: Chemistry and Biology that are traditionally dominated by experimentalists, are emerging to be one of the most active areas of science in the modern era of
This paper explores details of the relationship between two expressions of the basic error model describing a two-part vector network analyzer (VNA). One of
Recent studies by fluorine bomb calorimetry are described that lead to the determination of the standard molar enthalpy of formation of silicon nitride, [Δ] fH
Current NIST research is discussed on the characterization by micro-Raman spectroscopy of several high explosives (HES). The RamanSpectra are evaluated relative