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Displaying 451 - 475 of 3901

Surface and Interface Properties of Crosslinked Amine-Cured Epoxies

February 19, 2017
Author(s)
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

Survey of the State-of-the-Art for Ocean Wave Energy Conversion Systems

February 19, 2017
Author(s)
Kathryn Butler, Marc R. Nyden, William G. Rippey
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

Testing of an Alternate Smoking Material

February 19, 2017
Author(s)
Richard Gann
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

The AASHTO Accreditation Program: Serving the HMA Industry

February 19, 2017
Author(s)
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

The ACBM/NIST Computer Modelling Workshop: 1990-1998

February 19, 2017
Author(s)
Edward Garboczi
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

The Economic Impact of Manufacturing Extension Centers

February 19, 2017
Author(s)
M A. Ehlen
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

The Effects of Nanostructure on the Stability of Nanocomposite Building Materials

February 19, 2017
Author(s)
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

Thermal Degradation and Flammability Properties of Nanocomposites

February 19, 2017
Author(s)
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

Thermal Degradation Studies of Alkyl-Imidazolium Salts and Their Application in Nanocomposites

February 19, 2017
Author(s)
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

Time Resolved Size Distributions of Test Smokes and Nuisance Aerosols

February 19, 2017
Author(s)
Thomas Cleary
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

Toward an Integrated Concrete Performance Prediction Tool

February 19, 2017
Author(s)
Barbara C. Lippiatt
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

U.S.-Japan Joint Panel on Wind and Seismic Effects

February 19, 2017
Author(s)
Stephen A. Cauffman
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

Ultrasonic Extraction/Anodic Stripping Voltammetry for Determining Lead in Household Paint: Summary of a Laboratory Study

February 19, 2017
Author(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
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