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Tinh Nguyen, G Xiaohong, M Giraud, Mark R. VanLandingham, Jonathan W. Martin
The surface and film/substrate interface properties of a coating system have a strong influence on its adhesion and durability. However, both the surface and interface chemical composition and microstructure of a crosslinked coating applied to a substrate
It is possible to generate electrical energy from the motion of water due to ocean tides and waves. Oceans are a much more ubiquitous source of flowing water than river gorges, and the ability to efficiently harness this energy could potentially solve many
This report identifies and examines the important issues associated with a measurement and modeling program intended to evaluate how contaminants accidentally or intentionally introduced into the water supply might accumulate in building plumbing systems
ASTM test method E2187-02b is not appropriate for measuring the ignition strength of a cigarette-shaped smoking material that does not have a tobacco column that burns during smoking. This letter reports a measurement of the relative ignition strength of
Robert A. Lutz, J B. Hewston, D Savage, Peter Spellerberg
The American Association of State Highway and Transportation Officials (AASHTO) has been accrediting hot mix asphalt testing laboratories under the AASHTO Accreditation Program (AAP) since 1988. Laboratories must satisfy many quality system criteria, as
Introduction to, survey of, and advertisement for the ACBM/NIST Computer Modelling Workshop, over the years 1990-1998. This workshop is to train people in the computational materials science of concrete, as developed at NIST under ACBM. To appear in a bi
A recent U.S. Census survey indicates that the two Illinois manufacturing extension centers, affiliated with the national Manufacturing Extension Partnership, have improved the performance of small Illinois firms and the Illinois state economy. Over a two
A two-dimensional model was developed to evaluate the effect of laser beam alignment errors on the dimensions of the probe volume in duel-beam interferometry measurements. Simulations of droplets passing randomly through the probe volume of a two-component
Concrete maturity, often indicated by its equivalent age, is determined by the interaction of the temperature-dependent exothermic hydration reactions and the atmospheric conditions and curing regimen experienced during early ages. While indices of
Marc R. Nyden, Samuel Manzello, Richard H. Harris Jr.
Thermoplastics and composites made from hydrocarbon polymers can improve the affordability, strength-to-weight ratio, and durability of manufactured products. Unfortunately, the use of these materials in buildings and vehicles is limited because of their
The structural integrity of a building, and the safety of building occupants and first responders in an actual fire, will depend upon the quality of the structural design, the design of the active and passive fire protection and egress systems, and the
The relative error of the Filliben [Technometrics, 17, 111, 1975] approximation for uniform order statistic medians is calculated from the ratio of the error to the mean spacing between medians. The true uniform order statistic medians were calculated by
Mauro Zammarano, Jeffrey W. Gilman, Marc R. Nyden, Eli M. Pearce, Menachem Lewin
Polymer nanocomposites based on layered silicates (PLS) have attracted the interest of the scientific community for their outstanding combination of properties such as mechanical and chemical resistance, and reduced permeability and flammability. It is
We review briefly basic Melnikov theory for both deterministic and stochastic systems. We then show how the theory can be used for the identification of a class of multistable systems for which experimental data are available on the relation between
The zone model JET 2.0 is a two-zone, single compartment computer model designed to predict the maximum plume centerline and ceiling jet temperature, velocity, smoke density, and gas density produced by a single fire plume interacting with a growing smoke
Takashi Kashiwagi, A B. Morgan, Joseph M. Antonucci, Richard H. Harris Jr., E A. Grulke, J N. Hilding, Jack F. Douglas
Thermal degradation and flammability properties of the two types of nanocomposites with nanosilica and carbon nanotubes were studied. PMMA, poly(metheyl methacrylate), nanocomposites were made by in situ radical polymerization of MMA, methylmethacrylate
W H. Awad, Jeffrey W. Gilman, Marc R. Nyden, Richard H. Harris Jr., T E. Sutto, J H. Callahan, Paul C. Trulove, H X. DeLong
Increasing the thermal stability of organically modified layered silicates is one of the key points in the successful technical application of polymer layered-silicates nanocomposites on the industrial scale. To circumvent the detrimental effect of the
An electrical low-pressure impactor (ELPI) has been used to measure the size distribution of various test smokes and nuisance aerosols generated in the fire emulator/detector evaluator (FE/DE). Previously reported size results were time-averaged values
Industrial engineers and construction specifiers are increasingly concerned about the implications of their material design and product selection decisions, respectively, for the environment and public health. How will a given concrete design affect global
Alan M. Lytle, Kamel S. Saidi, William C. Stone, Nicholas A. Scott
The NIST Construction Metrology and Automation Group, in cooperation with the NIST Intelligent Systems Division, is researching robotic structural steel placement through an ongoing program entitled Performance of Innovative Technologies for Automated
We propose to develop a new reaction-rate model for nanoscale reaction kinetics, combining the most advantageous features of our Reactive Molecular Dynamics methods (RMD) with the statistical reaction-rate theories (SRRT) that are currently used to predict
The U.S.-Japan Joint Panel on Wind and Seismic Effects is now entering its 33rd year. The Panel was formed in 1969 under the auspices of the U.S.-Japan Cooperative Program on Natural Resources (UJNR), one of three collateral programs that comprise the U.S
Walter J. Rossiter Jr, Blaza Toman, M Vangel, M E. McKnight, M Baghai Anaraki, A Signor, I Emenanjo, E Byrd
This paper summarizes the results a three-year study conducted to evaluate the reliability of field-portable ultrasonic extraction-anodic stripping voltammetry (UE/ASV) for determining the amount of lead in laboratory-prepared and field-sampled paint films