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Journals

Quantification of cell response to polymeric composites using a two-dimensional gradient platform

August 6, 2009

Author(s)

Nancy Lin, Haiqing Hu, Li Piin Sung, Sheng Lin-Gibson

A simple and straightforward screening process to assess the toxicity and corresponding cell response of dental composites would be useful prior to extensive in...

Doping fluctuation-driven magneto-electronic phase separation in La1−xSrxCoO3 single crystals

August 5, 2009

Author(s)

Christine He, S. El-Khatib, J. Wu, Jeffrey Lynn, H. Zheng, J. F. Mitchell, C. Leighton

In recent years it has become clear that complex oxides provide an exceptional platform for the discovery of new physics as well as a considerable challenge to...

Protein crystal engineering of YpAC-IV using a strategy of excess charge reduction

August 5, 2009

Author(s)

David T. Gallagher, N N. Smith, Sung Kim, Howard Robinson, Prasad T. Reddy

The class IV adenylyl cyclase from Yersinia pestis has been engineered to enable crystallization at neutral pH for mechanism studies. The wild-type enzyme...

The Fifth Industrial Fluid Properties Simulation Challenge

August 5, 2009

Author(s)

F Case, Anne M. Chaka, J Moore, Raymond D. Mountain, J Olson, Richard B. Ross, Martin Schiller, Vincent K. Shen, Eric A. Stahlberg

The fifth industrial fluid properties simulation challenge was held in 2008. In it the contestants were challenged to predict specific, industrially relevant...

Cell Interactions with Biomaterials Gradients and Arrays

August 4, 2009

Author(s)

Yanyin Yang, Vinoy Thomas, Abby W. Morgan, Shauna M. Dorsey, Carl Simon Jr.

Gradients and arrays have become very useful to the fields of tissue engineering and biomaterials. Both gradients and arrays make efficient platforms for...

Effects of Polymorphism on Charge Transport in Organic Semiconductors

August 3, 2009

Author(s)

Oana Jurchescu, M. Devin, Sankar Subramanian, Sean R. Parkin, Brandon Vogel, John E. Anthony, Thomas Jackson, David J. Gundlach

The increasing interest in fluorinated 5,11-bis(triethylsilylethynyl)anthradithiophene (diF TES ADT) is motivated by the demonstrated high performance field...

Development of a metrology frame to improve the positioning accuracy of micro/meso-scale machine tools

August 3, 2009

Author(s)

Shawn P. Moylan, Daehie Hong, Bradley N. Damazo, Johannes A. Soons, M A. Donmez

The small size of the work volume of micro/meso-scale machine tools often presents problems for calibration and error compensation, but at the same time...

AMORPHOUS CALCIUM PHOSPHATE COMPOSITES AND THEIR EFFECT ON COMPOSITE/ADHESIVE/DENTIN BONDING

August 3, 2009

Author(s)

Joseph M. Antonucci, Justin N. O'Donnell, Gary E. Schumacher, Drago Skrtic

This study evaluates the bond strength and related properties of the photo-polymerizable, remineralizing amorphous calcium phosphate (ACP) polymeric composite...

Investigation on the Ability of Glowing Firebrands Deposited Within Crevices to Ignite Common Building Materials

August 3, 2009

Author(s)

Samuel L. Manzello, Seul-Hyun Park, Thomas G. Cleary

A series of experiments were conducted to determine the range of conditions that glowing firebrands may ignite common building materials. The surface...

Volume Change and Cracking in Internally Cured Mixtures Made with Saturated Lightweight Aggregate under Sealed and Drying Conditions

August 3, 2009

Author(s)

Ryan Henkensiefken, Dale P. Bentz, Tommy Nantung, Jason Weiss

Increased occurrences of early-age shrinkage cracking in low water to cement ratio (w/c) concrete have spawned innovative developments in mixture design that...

Experimental Study of High Sensitivity Infrared Spectrometer with Waveguide-Based Up-Conversion Detector

August 3, 2009

Author(s)

Lijun Ma, Oliver T. Slattery, Xiao Tang

We developed an up-conversion spectrometer for signals at single photon levels near the infrared region based on a tunable up-conversion detector which uses a...

A mechanistically relevant cytotoxicity assay based on the detection of cellular GFP

August 1, 2009

Author(s)

Michael W. Halter, Jamie L. Almeida, Alessandro Tona, Kenneth D. Cole, Anne L. Plant, John T. Elliott

Cell-based assays for measuring ribosome inhibition by proteins such as the plant toxin ricin are important for characterizing decontamination strategies and...

Application of Stereoscopic PIV to Measure the Flow of Air Into An Enclosure Containing a Fire

August 1, 2009

Author(s)

Rodney A. Bryant

Flow fields encountered in full-scale enclosure fires are highly three-dimensional and span a large spatial extent. Stereoscopic particle image velocimetry...

Simple, Quantitative Headspace Analysis by Cryoadsorption on a Short Alumina PLOT Column

August 1, 2009

Author(s)

Thomas J. Bruno

The use of purge and trap methods for sampling volatile organic compounds prior to chromatographic analysis is a mature technology. Application to low...

Modeling Solvent Evaporation During the Manufacture of Controlled Drug Release Coatings and the Impact on Release Kinetics

August 1, 2009

Author(s)

James A. Warren, D M. Saylor, Martin McDermott, D Patwardhan, Chang-Soo Kim

To improve functionality and performance, controlled drug release coatings comprised of drug and polymer are integrated with traditional medical devices, e.g...

Towards portable vacuum standards

August 1, 2009

Author(s)

Jay H. Hendricks, Douglas A. Olson

Since the middle of the 17th century, when Italian physicist Evangelista Torricelli discovered that a glass tube filled with mercury could be used to measure...

Radiation-Based Quantitative Bioimaging at NIST

August 1, 2009

Author(s)

Lisa R. Karam

The National Institute of Standards and Technology (NIST) provides the physical measurements and standards in a variety of fields, including for ionizing...

From the Editor's Desk: Diversity in Publications

August 1, 2009

Author(s)

Catherine A. Remley

This is an Editorial for the August, 2009 issue of IEEE Microwave Magazine. Kate Remley, the Editor-in-Chief, writes about timely topics for the members of the...

Establishment of the SIM Time Scale

August 1, 2009

Author(s)

J. Mauricio Lopez-Romero, N. Munoz, Michael A. Lombardi

The SIM time and frequency metrology working group has developed a comparison network for the Americas, with the goals of improving metrology in the SIM region...

Stylus ion trap for enhanced access and sensing

August 1, 2009

Author(s)

Robert Maiwald, Gerd Leuchs, Dietrich Leibfried, Joseph W. Britton, James C. Bergquist, David J. Wineland

We experimentally characterized a novel radio-frequency (rf) ion trap geometry formed by two concentric cylinders over a ground plane. These traps allow for...

Procedures for Wavelength Calibration and Spectral Response Correction of CCD Array Spectrometers

July 31, 2009

Author(s)

Adolfas K. Gaigalas, Lili Wang, Hua-Jun He, Paul C. DeRose

This work describes a procedure for acquiring a spectrum of an analyte over an extended range of wavelengths and validating the wavelength and intensity...

Characteristics of precision 1 Ω} standard resistors influencing transport behavior and the uncertainty of key comparisons

July 31, 2009

Author(s)

George R. Jones Jr., Brian J. Pritchard, Randolph Elmquist

National Measurement Institutes (NMIs) participate in international key comparisons organized by the BIPM, the Regional Metrology Organizations (RMOs), or the...

Reduced Nonlinearities and Improved Temperature Measurements for the NIST Johnson Noise Thermometer

July 31, 2009

Author(s)

Jifeng Qu, Samuel Benz, Horst Rogalla, David R. White

The variance of temperature measurements made with the NIST Johnson noise thermometer has been reduced by use of improved cross-correlation electronics and a...

Recent developments in large-scale dimensional metrology

July 30, 2009

Author(s)

G Peggs, P.G Maropoulos, E.B Hughes, Alistair Forbes, S Robson, M Ziebart, Bala Muralikrishnan

With ever-more demanding requirements for the accurate manufacture of large components, dimensional measuring techniques are becoming progressively more...

Nondestructive quantification of leakage and its correlation with material performance parameters

July 30, 2009

Author(s)

Jirun Sun, Rui Fang, Nancy Lin, Naomi Eidelman, Sheng Lin-Gibson

Current methods to determine debonding/leakage at the tooth-composite interphase are qualitative or semi-quantitative. Our previous work introduced a 3D imaging...

Evanescent Wave Cavity Ring-Down Spectroscopy for Ultrasensitive Chemical Detection

July 30, 2009

Author(s)

A C. Pipino

A new technology will be described which extends the cavity ring-down optical absorption technique to condensed matter by using a miniature, high-finesse...

Evanescent Wave Cavity Ring-Down Spectroscopy: A New Platform For Thin-Film Chemical Sensors

July 30, 2009

Author(s)

A C. Pipino

A new optical technique is described that permits extension of cavity ring-down spectroscopy (CRDS) to surfaces, films, and liquids. As in conventional CRDS...

Effect of RP-1 Compositional Variability on Thermal Conductivity at High Temperatures and High Pressures

July 29, 2009

Author(s)

L.A. Akhmedova-Azizova, Ilmutdin M. Abdulagatov, Thomas J. Bruno

Thermal conductivity of rocket propellant (RP-1 fuel) has been measured with a coaxial-cylinder (steady-state) technique. Measurements were made in the...

Probing Anomalous Structural Features in Polypurine Tract-Containing RNA-DNA Hybrids with Neomycin B

July 28, 2009

Author(s)

Robert G. Brinson, Kevin Turner, Hye Y. Yi-Brunozzi, Stuart F. Le Grice, Daniele Fabris, John P. Marino

During (-)-strand DNA synthesis in retroviruses and Saccharomyces cerevisiae LTR-retrotransposons, a purine rich region of the RNA template, known as the...

The Application of Stereoscopic Particle Image Velocimetry to Measure the Flow of Air into an Enclosure Containing a Fire

July 26, 2009

Author(s)

Rodney A. Bryant

Flow fields encountered in full-scale enclosure fires are highly three-dimensional and span over a large spatial extent. Stereoscopic Particle Image Velocimetry...

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