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Journals

High Accuracy Dual Lens Transmittance Measurements

August 1, 2007

Author(s)

J Cheung, James Gardner, Alan L. Migdall, Sergey Polyakov, Michael Ware

We show how to determine the transmittance of short focal length lenses (f 19 mm, in this case) with an uncertainty of 1 part in 103 or better by measuring...

Comparison of the Currents Induced on an EUT in a TEM Cell to Those Induced in a Free-Space Environment

August 1, 2007

Author(s)

Per E. Fornberg, Christopher L. Holloway

The finite-difference time-domain (FDTD) method is used to investigate whether the currents induced on equipment under test (EUT) in a transverse...

Surface Grafting of Polypyrrole onto Silicon Wafers

August 1, 2007

Author(s)

Daeson Sohn, Hyoseung Moon, Michael J. Fasolka, Naomi Eidelman, Sang-Mo Koo, Curt A. Richter, Eun S. Park, Joseph Kopanski, Eric J. Amis

A micromolding technique in capillaries was adapted to make uniform patterns of polypyrrole (Ppy), and the conductivities of the patterns were measured by...

Synchrotron X-ray Based Characterization of ZdZnTe Crystals

August 1, 2007

Author(s)

Martine Duff, Douglas Hunter, Patterson Nuessle, David R. Black, H E. Burdette, Joseph Woicik, Arnold Burger, Michael Groza

Correlation of Edge Roughness to Nucleation Field and Nucleation Field Distribution in Patterned Permalloy Elements

July 31, 2007

Author(s)

June W. Lau, Robert D. McMichael, M A. Schofield, Y Zhu

A direct consequence of shrinking technology down into the nanoscale is the steadily increasing boundary to volume ratio. In the case of magnetic nanostructures...

Corrosivity of Fluids as a Function of Distillate Cut: Application of an Advanced Distillation Curve Method

July 31, 2007

Author(s)

Lisa S. Ott, Thomas J. Bruno

Recently, we reported a method and apparatus for the advanced measurement of distillation curves. The new method allows for increased precision in the...

Ultrafast Chelation Dynamics of a Manganese Tricarbonyl Derivative in Solid Polyacrylonitrile

July 31, 2007

Author(s)

Tung T. To, Edwin J. Heilweil

Ultraviolet pump, infrared probe transient absorption studies of the chelatable compound 1, [Mn?5-C5H4C(O)(SCH3)3}(CO)3], dispersed in room temperature, 25 m...

Spectroscopic determination of phase in tetragonally strained Ba0.5Sr0.5TiO3 films at room temperture

July 30, 2007

Author(s)

L M. Alldredge, Joseph Woicik, W Chang, S W. Kirchoefer, J M. Pond

Random Telegraph Signals in n-type ZnO Nanowire Field Effect Transistors at Low Temperature

July 30, 2007

Author(s)

Hao Xiong, Wenyong Wang, Qiliang Li, Curt A. Richter, John S. Suehle, Woong-Ki Hong, Takhee Lee, U Falke

Single-crystal ZnO nanowires have been fabricated as field effect transistors (FETs). The characteristics of low frequency noise in the drain current of n-type...

Subcentimeter depth resolution using a single-photon counting time-of-flight laser ranging system at 1550 nm wavelength

July 30, 2007

Author(s)

Ryan E. Warburton, Aongus McCarthy, Andrew M. Wallace, Sergio Hernandez-Marin, Robert Hadfield, Sae Woo Nam, Gerald S. Buller

We demonstrate subcentimeter depth profiling at a stand off distance of 330 m using a time-of-flight approach based on time-correlated single-photon counting...

Neutron Images of the Through-Plane Water Distribution of an Operating PEM Fuel Cell

July 27, 2007

Author(s)

Daniel S. Hussey, David L. Jacobson, Muhammad Arif, Jon P. Owejan, Jeffrey J. Gagliardo, T Trabold

Neutron imaging has proven an invaluable tool for water metrology in operating proton exchange membrane fuel cells. Due to limitations in scintillator-based...

In-Situ Investigation of Water Transport in an Operating PEM Fuel Cell Using Neutron Radiography: Part 2 - Transient Water Accumulation in an Interdigitated Cathode Flow Field

July 27, 2007

Author(s)

Jon P. Owejan, T Trabold, David L. Jacobson, D Baker, Daniel S. Hussey, Muhammad D. Arif

An interdigitated cathode flow field was tested in-situ with neutron radiography to measure the water transport through the porous gas diffusion layer in a PEM...

Interrogation of Surface, Skin and Core Orientation in Thermotrophic Liquid-Crystalline Copolyster Moldings by Near-Edge X-ray Absorption Fine Structure and Wide-Angle X-ray Scattering

July 27, 2007

Author(s)

S Rendon, Robert A. Bubeck, L S. Thomas, W R. Burghardt, A Hexemer, Daniel A. Fischer

Texture and Phase Analysis of a Ca₃Co₄O₉ / Si (100) Thermoelectric Film

July 26, 2007

Author(s)

Winnie K. Wong-Ng, Y F. Hu, Mark D. Vaudin, B He, Makoto Otani, Nathan Lowhorn, Q Li

This paper reports the texture analysis as well as the identification of two crystalline phases between a thin film of monoclinic Ca3Co4O9 and a cubic (100) Si...

Controlled Exchange Interaction Between Pairs of Neutral Atoms in an Optical Lattice

July 26, 2007

Author(s)

M Anderlini, Patricia J. Lee, Ben L. Brown, Jennifer Sebby-Strabley, William D. Phillips, James V. Porto

Ultra-cold atoms trapped by light, with their inherent quantum coherence and controllability, provide an attractive system for quantum information and for the...

Concordance Study Between the AmpFlSTR((R)) MiniFiler(TM) PCR Amplification Kit and Conventional STR Typing Kits

July 25, 2007

Author(s)

Carolyn R. Steffen, Margaret C. Kline, Julio J. Mulero, Robert E. Lagace, Chien-Wei Chang, Lori K. Hennessy, John M. Butler

The AmpFlSTR MiniFiler PCR Amplification kit developed by Applied Biosystems enables size reduction on eight of the larger short tandem repeat (STR) loci...

Edge Chipping of Brittle Materials: Effect of Side-Wall Inclination and Loading Angle

July 23, 2007

Author(s)

H Chai, Brian R. Lawn

An earlier analysis of chipping fracture in brittle solids is here extended to include the case of blocks with inclined side faces and non-normal contact...

Voltage Instability in a Simulated Fuel Cell Stack Correlated to Cathode Water Accumulation

July 22, 2007

Author(s)

Jon P. Owejan, T Trabold, Jeffrey J. Gagliardo, Robert N. Carter, Daniel S. Hussey, David L. Jacobson, Muhammad D. Arif

Single fuel cells running independently are often used for fundamental studies of water transport. It is also necessary to assess the dynamic behavior of fuel...

Influence of indium-tin oxide surface structure on the ordering and coverage of carboxylic acid and thiol monolayers

July 21, 2007

Author(s)

M Cerruti, C Rhodes, M Losego, A Efremenko, J P. Maria, Daniel A. Fischer, D L. Feldheim, S G. Franzen

Topography of Metallic Surfaces Subjected to Plastic Strain: Roughness, Spatial Correlations, and Eigenvalue Spectral Entropy

July 19, 2007

Author(s)

Joseph B. Hubbard, Mark R. Stoudt, Lyle E. Levine

We employ scanning confocal laser microscopy (SLCM) to obtain topographic images of the surface of an aluminum alloy subjected to various levels of uniaxial...

Low-noise fiber-laser frequency combs

July 19, 2007

Author(s)

Nathan R. Newbury, William C. Swann

We discuss experimental and theoretical aspects of a low-noise fiber-laser frequency comb, including the experimental configuration and the major contributions...

Kinematics Viscosity of Several Gases at Temperatures Between 220 K and 375 K, and Pressures up to 3.4 MPa Determined From a Greenspan Acoustic Viscometer

July 18, 2007

Author(s)

Andres Estrada-Alexanders, John J. Hurly

The sample gas oscillates between the two chambers at a low frequency dependent on the molecular weight, typically 300 Hz for argon. A complete acoustic model...

Bias and the Limits of Pooling for Large Collections

July 17, 2007

Author(s)

C E. Buckley, Darrin L. Dimmick, Ian Soboroff, Ellen M. Voorhees

Modern retrieval test collections are built through a process called pooling in which only a sample of the entire document set is judged for each topic. The...

Injectable Calcium Phosphate Cement: Effects of Powder-to-Liquid Ratio and Needle Size

July 16, 2007

Author(s)

Elena F. Burguera, Hockin D. Xu, Limin Sun

Calcium phosphate cement (CPC) sets in-situ with intimate contact with neighboring bone and forms apatite with excellent osteoconductivity and bone-replacement...

Model, Prediction and Experimental Verification of Composition and Thickness in Continuous Spread Thin Film Combinatorial Libraries Grown by Pulsed Laser Deposition

July 16, 2007

Author(s)

Nabil Bassim, Peter K. Schenck, Makoto Otani, Hiroyuki Oguchi

Pulsed laser deposition (PLD) is a powerful technique for growing continuous spread thin film libraries of continuously varying composition as a function of...

Laser-induced exfoliation of amorphous carbon layer on an individual multiwall carbon nanotube

July 16, 2007

Author(s)

Gurpreet Singh, Paul Rice, Katie Hurst, John H. Lehman, Roop Mahajan

Pulsed-laser treatment of an individual multiwall carbon nanotube induced selective exfoliation of the amorphous carbon contamination layer. The multiwall...

MODELING AND EXPERIMENTS ON FAST COOLDOWN OF A 120 Hz PULSE TUBE CRYOCOOLER

July 16, 2007

Author(s)

Srinivas Vanapalli, Michael A. Lewis, Gershon Grossman, Zhihua Gan, Ray Radebaugh, H.J. M. ter Brake

High frequency operation of a pulse tube cryocooler leads to reduced regenerator volume, which results in a reduced heat capacity and a faster cooldown time. A...

Laser-induced exfoliation of amorphous carbon layer on an individual multiwall carbon nanotube

July 16, 2007

Author(s)

Gurpreet Singh, Paul Rice, Katie Hurst, John Lehman, Roop L. Mahajan

Pulsed laser treatment of an individual Multiwall Carbon Nanotube (MWCNT) exposed to a 248 nm excimer laser induced selective exfoliation of the amorphous...

ILThermo: A Free-Access Web Database for Thermodynamic Properties of Ionic Liquids

July 15, 2007

Author(s)

Qian Dong, Chris D. Muzny, Andrei F. Kazakov, Vladimir Diky, Joe W. Magee, Jason A. Widegren, Robert D. Chirico, Kenneth N. Marsh, Michael D. Frenkel

The development, scope, and functionality of the web-based ionic liquids database, ILThermo, are described. The database is available free to the public, and...

A Virtual Rapid Chloride Permeability Test

July 15, 2007

Author(s)

Dale P. Bentz

The rapid chloride permeability test (RCPT), as it is commonly called, has been in existence for over 20 years and was standardized by ASTM over 15 years ago...

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