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Journals

Rheo-Optics of Equilibrium Polymer Solutions: Wormlike Micelles in Elongational Flow in a Microfluidic Cross-Slot

September 19, 2006

Author(s)

Jai A. Pathak, Steven D. Hudson

The rheo-optical analysis of polymer solutions and melts is a critical tool in elucidating their molecular response to flow fields. We therefore evaluate the...

Coupling between Octahedral Tilting and Ferroelectric Order in Tetragonal Tungsten Bronze-Structured Dielectrics

September 18, 2006

Author(s)

MILES G. Stennett, D I. Woodward, A R. West, I Reaney

The 2005 Materials Research Society (MRS) Fall Meeting

September 18, 2006

Author(s)

Winnie K. Wong-Ng

The 2005 Materials Research Society (MRS) Fall Meeting took place in the Hynes Convention Center and the Sheration Boston Hotel, starting the weekend following...

Einstein-de Haas effect in a NiFe film deposited on a microcantilever

September 18, 2006

Author(s)

Thomas Mitchell (Mitch) Wallis, John M. Moreland, Pavel Kabos

A new methods is presented for determining the magetomechanical ratio, g', in a thin ferromagnetic film deposited on a microcantilever via measurement of the...

Power Dependence of the Frequency Bias Caused by Spurious Components in the Microwave Spectrum in Atomic Fountains

September 15, 2006

Author(s)

Steven R. Jefferts, Jon H. Shirley, F Levi

The presence of spurious spectral components in the microwave excitation may induce frequency shifts in an atomic fountain. We discuss how such shifts behave as...

A Straightforward Frequency-Estimation Technique for GPS Carrier-Phase Time Transfer

September 15, 2006

Author(s)

C Hackman, Judah Levine, Thomas E. Parker, Dirk Piester, Juergen Becker

GPS carrier-phase time transfer (GPSCPTT) offers high frequency stability at short averaging times, approaching a fractional frequency stability of 10 -15 at an...

Effects of Wafer Impedance on the Monitoring and Control of Ion Energy in Plasma Reactors

September 15, 2006

Author(s)

Mark A. Sobolewski

Comparative Measures of Single Wall Carbon Nanotube Dispersion

September 14, 2006

Author(s)

Jeffrey A. Fagan, Brian Landi, Idan Mandelbaum, Vardhan Bajpai, Barry J. Bauer, Kalman D. Migler, Jeffrey R. Simpson, Angela R. Hight Walker, Ryan Raffaelle, Erik K. Hobbie

Model polymer composites of DNA wrapped single-wall carbon nanotubes (SWNTs) dispersed in polyacrylic acid are used for a systematic comparison of the different...

SI-Traceable Spring Constant Calibration of Microfabricated Cantilevers for Small Force Measurement

September 14, 2006

Author(s)

Gordon A. Shaw, John A. Kramar, Jon R. Pratt

A variety of methods exist to measure the stiffness of microfabricated cantilever beams such as those used as mechanical sensors in atomic force microscopy (AFM...

Long-distance quantum key distribution in optical fibre

September 14, 2006

Author(s)

Philip A. Hiskett, Danna Rosenberg, Charles G. Peterson, Richard J. Hughes, Jane E. Nordholt, Sae Woo Nam, Adriana Lita, Aaron J. Miller

Use of low-noise detectors can both increase the secret bit rate of long-distance quantum key distribution (QKD) and dramatically extend the length of a fibre...

The Microwave Spectrum of a Two-Top Peptide Mimetic: The N-Acetyl Alanine Methyl Ester Molecule

September 14, 2006

Author(s)

I Kleiner, J Demaison, David F. Plusquellic, R D. Suenram, R J. Lavrich, Francis J. Lovas, Gerald T. Fraser, Vadim V. Ilyushin

Rotational spectra of the ground torsional state of the N-acetyl alanine methyl ester molecule, a derivative of the alanine dipeptide biomimetic molecule, have...

Curing, Hydration, and Microstructure of Cement Paste

September 13, 2006

Author(s)

Dale P. Bentz, Paul E. Stutzman

This paper compares the hydration characteristics and microstructures of cement pastes with water-to-cement ratios (w/c) of 0.35 and 0.435, cured under...

Phase Formation and Properties in the System Bi2O 3:2CoO 1+x:Nb2O5

September 13, 2006

Author(s)

Terrell A. Vanderah, T Siegrist, M W. Lufaso, C Yeager, Juan C. Nino, S Yates, Robert S. Roth

Subsolidus phase relations have been determined for the Bi-Co-Nb-O system in air (750 C to 925 C). Ternary compound formation was limited to pyrochlore (A2B 2O...

Association Characteristics in Spatial Statistics

September 12, 2006

Author(s)

Andrew L. Rukhin

A coefficient of association for two spatial sequences is suggested. Some properties of this characteristic are discussed. By using the Central Limit Theorem...

Correlation for the Vapor Pressure of Mercury

September 12, 2006

Author(s)

Marcia L. Huber, Arno D. Laesecke, Daniel G. Friend

We present a new correlation for the vapor pressure of mercury that is valid from the triple point to the critical point. The equation is a Wagner-type form...

Whisker Formation in Pb-Free Surface Finishes

September 11, 2006

Author(s)

Gery R. Stafford, Maureen E. Williams, C E. Johnson, Kil-Won Moon, Ugo Bertocci, William J. Boettinger

High purity bright Sn, Sn-Cu and Sn-Pb layers measuring 3,7 and 16 microns thick were electrodeposited onto phosphor bronze cantilever beams in a rotating disk...

Numerical Modeling of Diffusion-Induced Deformation

September 11, 2006

Author(s)

J A. Dantzig, William J. Boettinger, James A. Warren, Geoffrey B. McFadden, Sam R. Coriell, R F. Sekerka

We present a numerical approach to modeling the deformation induced the the Kirkendall effect in binary alloys. The governing equations for isothermal binary...

Determination of Lipid Phase Transition Temperatures in Hybrid Bilayer Membranes

September 9, 2006

Author(s)

Neil A. Anderson, Lee J. Richter, John C. Stephenson, Kimberly A. Briggman

The main gel to liquid crystal (LC) phase transition temperature, Tm, of the lipid monolayers in hybrid bilayer membranes (HBMs) was investigated using...

Bulk Viscosity, Thermoacoustic Boundary Layers, and Adsorption Near the Critical Point

September 8, 2006

Author(s)

Keith A. Gillis, Iosif I. Shinder, Michael R. Moldover

We measured the resonance spectrum of an acoustic resonator filled with xenon near its critical temperature Tc. We reduced the effect of gravity on the xenon by...

Fourier Transform Microwave Spectroscopy of Isotopically Substituted Diacetylenes: rs-Structure, Quadrupole Coupling, and Anisotropic Nuclear Spin-Spin Interaction

September 8, 2006

Author(s)

Francis J. Lovas, R D. Suenram, Keiji Matsumura, Takehiko Tanakac

Structure of the Class IV Adenylyl Cyclase Reveals a Novel Fold

September 8, 2006

Author(s)

David T. Gallagher, N Smith, S. Kim, A Heroux, Howard Robinson, Prasad T. Reddy

Microwave Spectrum and Structure of Furfural

September 8, 2006

Author(s)

R A. Motiyenkoa, E A. Alekseev, S F. Dyubkoa, Francis J. Lovas

The microwave spectrum of furfural was investigated in the frequency range 7 GHz to 21 GHz and 49 GHz to 330 GHz. The ground and first torsional state of trans...

New functions of XPC in the protection of human skin cells from oxidative damage

September 7, 2006

Author(s)

M. D'Errico, E. Parlanti, M. Teson, B. M. Bernardes de Jesus, P. Degan, A. Calcagnile, Pawel Jaruga, M. Bjoras, M. Crescenzi, A. M. Pedrini, J.-M. Egly, G. Zambruno, M. Stefanini, M Miral Dizdar, E. Dogliotti

Elimination of two level fluctuators in superconducting quantum bits by an epitaxial tunnel barrier

September 7, 2006

Author(s)

Seongshik Oh, Katarina Cicak, Jeffrey S. Kline, Mika Sillanpaa, Jed D. Whittaker, Raymond W. Simmonds, David P. Pappas, Kevin Osborn

Quantum computing based on Josephson junction technology is considered promising due to its scalable architecture. However, decoherence is a major obstacle...

NEXAFS Characterization of DNA Components and Molecular-Orientation of Surface-Bound DNA Oligomers

September 7, 2006

Author(s)

N T. Samuel, C H. Lee, L Gamble, Daniel A. Fischer, David G. Castner

Single stranded DNA oligomers (ssDNA) immobilized onto solid surfaces forms the basis for several biotechnological applications such as DNA microarrays...

Determination of SPRT Realization Uncertainties Between Points

September 6, 2006

Author(s)

Christopher W. Meyer, Dean C. Ripple

Calibrated Standard Platinum Resistance Thermometers (SPRTs) are used to realize the International Temperature Scale of 1990 (ITS-90) from 13.8033 K to 1234.93...

Self-Assembled Monolayers: Effect of Chain Length on Nanofriction

September 6, 2006

Author(s)

S Hsieh, S Sambasivan, J V. Sengers, Stephen M. Hsu

We measured the interfacial friction of a series of alkylsilanes with chain lengths from C5 to C30 on silicon (100) surfaces using an Atomic Force Microscope...

Mechanical Properties of Nanocomposite Latex Films via Instrumented Indentation

September 6, 2006

Author(s)

Aaron M. Forster, Stephanie S. Watson, Laura Johnson, Li Piin Sung

Inorganic particles, introduced into networked or glassy polymer films, have been used to increase the stiffness of films as a function of pigment loading...

Spectroscopic phase-dispersion optical coherence tomography measurements of scattering phantoms

September 4, 2006

Author(s)

Shellee D. Dyer, Tasshi Dennis, Lara Roberson, Shelley M. Etzel, Thomas Germer, Andrew Dienstfrey

We demonstrate a novel technique to determine the size of Mie scatterers with high sensitivity. Our technique is based on spectral domain optical coherence...

A Unified Description of Nonlinear Effects in High Temperature Superconductor Microwave Devices

September 2, 2006

Author(s)

James Booth, Kenneth Leong, Susan A. Schima, Jordi Mateu, Carlos Collado, Juan M. O'Callaghan

We demonstrate experimentally the equivalence of different manifestations of nonlinear response in high temperature superconductor (HTS) microwave devices...

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