An official website of the United States government
Here’s how you know
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.
Jeffrey W. Gilman, W H. Awad, Rick D. Davis, John R. Shields, Richard H. Harris Jr., C H. Davis, A B. Morgan, T E. Sutto, J H. Callahan, Paul C. Trulove, H DeLong
The limited thermal stability of alkylammonium cations intercalated into smectite minerals (e.g., montmorillonite, MMT) and the processing instability of some
The lattice Boltzmann method is a promising approach for modeling single and multicomponent fluid flow in complex geometries like porous materials. Here, we
Xiaohong Gu, D T. Raghavan, Jack F. Douglas, Alamgir Karim
We investigate the dewetting of aqueous, evaporating polymer [poly(acrylic acid)] solutions cast on hydrophobic (polystyrene) substrates. As with typical
We received two copies of the discussion: one from the journal and a corrected version directly from Dr. Chatterji. Based on the differences between the two
This work falls within the scope of a genera! problem regarding the assessment of concrete manufactured from waste materials. The main objective is to study the
Diane K. Hancock, Frederick P. Schwarz, F H. Song, L J. Wong, Barbara C. Levin
Most pathogenic human mitochondrial DNA (mtDNA) mutations are Heteroplasmic and are difficult to detect when present at very low levels in a population of
Kuldeep R. Prasad, S L. Olson, Y N. Nakamura, K K. Nishizawa, K. Ito, Takashi Kashiwagi
A three-dimensional, time-dependent model is developed describing ignition and subsequent transition to flame spread over a thermally thin cellulosic sheet
Richard D. Peacock, Paul A. Reneke, Jason D. Averill, Richard W. Bukowski, J H. Klote
As part of the passenger equipment rulemaking required by Congress, the Federal Railroad Adminstration (FRA) has issued new requirements making its existing
W M. Gibson, A J. Schultz, Huaiyu H. Chen-Mayer, David F. Mildner, Thomas H. Gnaeupel-Herold, M E. Miller, H J. Prask, R Vitt, R Youngman, J M. Carpenter
J He, Martin Y. Chiang, Donald L. Hunston, Charles C. Han
The v-notch (losipescu) shear test was investigated as a mean for determining the in-plane shear modulus and strength of unidirectional hybrid composites. Two
Procedures for testing research materials for the determination of the extent of within-specimen heterogeneity and between-specimen heterogeneity are described
Cher H. Davis, L J. Mathias, Jeffrey W. Gilman, D Schiraldi, Paul C. Trulove, T X. Suttos, H X. DeLong
The effects of melt intercalation processing conditons on the quality of poly(ethylene terephthalate) montmorillonite clay nanocomposites have been investigated
James C. Booth, S. Y. Lee, J. H. Lee, Jung Hoon Han, S. H. Moon, H. N. Lee, John H. Claassen
The surface resistance !RS" and the real part !!1" of the microwave complex conductivity of a #380-nm-thick polycrystalline MgB2 film with the critical
This paper describes air interface standards for wireless local area network (LAN), wireless metropolitan area network (MAN), and wireless personal area network
A more accurate methodology to measure the reflectance of optical disks, taking into consideration the scattering losses at the surfaces of the disk, is
Brian R. Lawn, Y N. Deng, P Miranda, Antonia Pajares, H Chai, D H. Kim
In this article, we review recent advances in the understanding and analysis of damage initiation and evolution in laminate structures with brittle outlayers
The need for new improved solder alloys and better understanding of reactions during the soldering process grow steadily as the need for smaller and more
Charles E. Bouldin, A I. Frenkel, A V. Kolobov, I K. Robinson, J O. Cross, Y Maeda
Diffraction Anomalous Fine Structure (DAFS) and Extended X-Ray Absorption Fine Structure (EXAFS) measurements have been combined to determine short-range order
Snapshot of NIST s four programsPart of the U.S. Commerce Department s Technology Administration, NIST tends to the health of nation s technology infrastructure
With the capability of simultaneous control of repetition and carrier frequencies, phase coherent superposition of a collection of successive pulses from a