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Journals

Three-dimensional simulation study of the improved on/off current ratio in silicon nanowire field-effect transistors

September 30, 2008

Author(s)

Chang-Yong Choi, Won-Ju Cho, Sang-Mo Koo, John S. Suehle, Curt A. Richter, Qiliang Li, Eric Vogel

In this paper, we report an approach based on three-dimensional numerical simulations for the investigation of the dependence of the on/off current ratio in...

Surface-Enhanced Raman Spectroscopy via Gold Nanostars

September 28, 2008

Author(s)

Emren Nalbant-Esenturk, Angela R. Hight Walker

Anisotropic metallic nanoparticles have unique optical properties, which lend them to applications such as Surface Enhanced Raman Spectroscopy (SERS). Branched...

Fire Induced Thermal and Structural Response of the World Trade Center Towers

September 26, 2008

Author(s)

Kuldeep R. Prasad, Anthony P. Hamins, Therese P. McAllister, John L. Gross

Over the past several years, there has been a resurgence of interest in studying the response of building structures to fires. Typically, the thermal loading...

Quantifying Changes in the Fast Dynamics of Mixtures by Dielectric Spectroscopy

September 26, 2008

Author(s)

Tatiana Psurek, Christopher L. Soles, Kirt A. Page, Marcus T. Cicerone, Jack F. Douglas

The addition of a solvent or nanoparticles to a polymeric material can lead toappreciable changes in the rates of relaxation and reaction that can profoundly...

Quantum Simulations of Classical Annealing Processes

September 26, 2008

Author(s)

Rolando Somma, S. Boixo, Howard Barnum, Emanuel Knill

We describe a quantum algorithm that solves combinatorial optimization problems by quantum simulation of a classical simulated annealing process. Our algorithm...

Hexagonal YFe1−xPdxO3−δ: Nonperovskite Host Compounds for Pd2+ and Their Catalytic Activity for CO Oxidation

September 25, 2008

Author(s)

Jun Li, Udayshankar G. Singh, Thomas D. Schladt, Judith K. Stalick, Susannah L. Scott, Ram Seshadri

Metastable YFeO3 with the hexagonal YAlO3 structure was obtained by a sol−gel process at 700 °C, using metal nitrate precursors with pH control and the...

in-Adamantane, a Small Inside-Out Molecule

September 25, 2008

Author(s)

Karl K. Irikura

The hydrocarbon in-adamantane, an adamantane isomer in which one methine hydrogen atom is inside the cage, is predicted by ab initio calculations to be isolable...

The Electric And Magnetic Susceptibilities Of Gaseos Oxygen: Comparisons Of New Measurements and Modern Theory

September 25, 2008

Author(s)

Michael R. Moldover, E May, James W. Schmidt

We used a cross capacitor to measure the relative dielectric permittivity ε r of O 2 at 273 K, 293 K, and 323 K and at pressures up to 6.5 MPa. Simultaneously...

Purification of as-prepared single-walled carbon nanotubes by pulsed excimer-laser treatment

September 25, 2008

Author(s)

Katie Hurst, Anne Dillon, Shao Yang, John H. Lehman

We investigate the purification of as-prepared single wall carbon nanotubes (SWCNTs) by exposure to pulsed 193 and 248 nm laser light, as well as lamp...

Effect of Composition and Processing Condition on Microstructural Properties and Durability of Fluoropolymer/Acrylic Blends

September 24, 2008

Author(s)

Li Piin Sung, Xiaohong Gu, Derek L. Ho, Forrest A. Landis, D Nguyen

Fluoropolymer-based coatings have been greatly used as binders for exterior coatings because of their excellent resistance to UV radiation as well as to many...

Ultra-high resolution alpha particle spectroscopy using calorimetry

September 23, 2008

Author(s)

Robert D. Horansky, Joel N. Ullom, James A. Beall, Gene C. Hilton, Kent D. Irwin, Don Dry, Beth Hastings, Stephen Lamont, Clifford R. Rudy, Michael W. Rabin

Calorimetry has been used since the late 1700?s to measure the heat output of physical processes ranging from chemical reactions to the respiration of organisms...

Measuring Optical Tunneling Times using a Hong-Ou-Mandel Interferometer.

September 23, 2008

Author(s)

Sergey Polyakov, Alan L. Migdall, Paul D. Lett, David Papoular, Pierre Clade, Colin McCormick

We report a prediction for the delay measured in an optical tunneling experiment using Hong-Ou-Mandel (HOM) interference, taking into account the Goos-Hanchen...

Characterizing the Non-Linear Viscoelastic Properties of Sealant Including the Mullins Effect

September 23, 2008

Author(s)

Christopher C. White, Donald L. Hunston

Quantification of the mechanical properties, such as the non-linear viscoelastic behavior, for a cured sealant is complicated by the presence of the Mullins...

Allan Variance of Time Series Models of Measurement Data

September 22, 2008

Author(s)

Nien F. Zhang

The uncertainty of the mean of autocorrelated measurements from a stationary process has been discussed in the literature. However, when the measurements are...

Manipulation of the asymmetric swelling fronts of photoresist polyelectrolyte gradient thin films

September 22, 2008

Author(s)

Vivek M. Prabhu, Ashwin Rao, Shuhui Kang, Eric K. Lin, Sushil K. Satija

The depth profile of swelling polyelectrolyte layers is characterized by a static substrate layer and an asymmetric profile with position and shape parameters...

SI traceable calibration of an instrumented indentation sensor spring constant using electrostatic force

September 22, 2008

Author(s)

Koo-Hyun Chung, Stefan Scholz, Gordon A. Shaw, John A. Kramar, Jon R. Pratt

We present a measurement scheme for creating reference electrostatic forces that are traceable to the International System of Units (SI). This scheme yields...

Density and Speed of Sound Measurements on Five Fatty Acid Methyl Esters at 83 kPa and Temperatures from (278.15 to 338.15) K

September 20, 2008

Author(s)

Lisa S. Ott, Marcia L. Huber, Thomas J. Bruno

The densities and velocities of sound of five fatty acid methyl esters (FAMEs) were measured at approximately 83 kPa (atmospheric pressure in Boulder, CO) at...

Bayesian Posterior Predictive p-value of Statistical Consistency in Interlaboratory Evaluations

September 17, 2008

Author(s)

Raghu N. Kacker, Alistair Forbes, Ruediger Kessel, K D. Sommer

Results from an interlaboratory evaluation are said to be statistically consistent if they fit a normal (Gaussian) consistency model which postulates that the...

Laser Doppler vibrometer employing active frequency feedback

September 17, 2008

Author(s)

Akobuije D. Chijioke, John R. Lawall

We present a heterodyne Michelson interferometer for vibration measurement in which feedback is used to obviate the need to unwrap phase data. The Doppler shift...

Composition-Explicit Distillation Curves of Diesel Fuel with Glycol Ether and Glycol Ester Oxygenates: Fuel Analysis Metrology to Enable Decreased Particulate Emissions

September 17, 2008

Author(s)

Beverly L. Smith, Lisa S. Ott, Thomas J. Bruno

We have recently introduced several important improvements in the measurement of distillation curves for complex fluids. The modifications to the classical...

Multi-sample micro-slit rheometry

September 17, 2008

Author(s)

Doyoung Moon, Anthony J. Bur, Kalman D. Migler

We have developed a multi-sample micro-slit rheometer MMR which is capable of measurements over a broad range of temperatures, viscosities and shear rates...

Experimental Test of the Sidney Young Equation for the Presentation of Distillation Curves

September 15, 2008

Author(s)

Thomas J. Bruno, Lisa S. Ott, Beverly L. Smith

The distillation (or boiling) curve of a complex fluid is a critically important indicator of the bulk behavior or response of the fluid. For this reason, the...

Can Economics-based Resource Allocation Prove Effective in a Computation Marketplace?

September 15, 2008

Author(s)

Kevin L. Mills, Christopher E. Dabrowski

Several companies offer computation on demand for a fee. More companies are expected to enter this business over the next decade, leading to a marketplace for...

Multi-level effects in the Rabi oscillations of a Josephson phase qubit

September 15, 2008

Author(s)

S. K. Dutta, H. Paik, T. A. Palomaki, J. R. Anderson, A. J. Dragt, C. J. Lobb, F. C. Wellstood, Frederick Strauch, Kaushik Mitra, Eite Tiesinga

We present Rabi oscillation measurements of an Nb/AlOx/Nb dc SQUID phase qubit with a 100 ¿m2 area junction acquired at 25 mK over a range of microwave power...

Relative Intensity Noise Suppression for Photonic Links

September 15, 2008

Author(s)

Craig Nelson, Archita Hati, David A. Howe

We propose and experimentally demonstrate a novel technique to reduce laser relative intensity noise (RIN). A RIN suppression servo is usually implemented by...

Phase Locking Transition in a Chirped Superconducting Josephson Resonator

September 12, 2008

Author(s)

Jose A. Aumentado, Ofer Naaman, L Friedland, J.S. Wurtele, Irfan Siddiqi

We observe a sharp threshold for autoresonant phase locking in a transmission line resonator embedded with a Josephson tunnel junction and driven with a purely...

Indentation Fracture of Low Dielectric Constant Films, Part II. Indentation Fracture Mechanics Model

September 12, 2008

Author(s)

Dylan Morris, Robert F. Cook

Part I of this two-part work explored the instrumented-indentation and fracture phenomena of compliant, low dielectric constant (low-k) films on silicon...

Effect of Annealing on Transport Properties of MgO-based Magnetic Tunnel Junctions

September 12, 2008

Author(s)

Ann Chiaramonti Debay, Daniel Schreiber, William F. Egelhoff Jr., D. N. Seidman, Amanda K. Petford-Long

The effect of annealing on the transport behavior of CoFe/MgO/CoFe magnetic tunnel junctions has been studied using a combination of site-specific in-situ...

Single ferroelectric and chiral magnetic domain of single-crystalline BiFeO 3 in an electric field

September 11, 2008

Author(s)

Seoungsu Lee, Taekjib Choi, William D. Ratcliff, Ross W. Erwin, S W. Cheong, V. Kiryukhin

We report on polarized neutron-scattering and piezoresponse force microscopy studies of millimeter-sized single crystals of multiferroic BiFeO3. The crystals...

2,5-Dihydroxybenzoic Acid: Laser Desorption/Ionization as a Function of Elevated Temperature

September 11, 2008

Author(s)

William E. Wallace, Mark Arnould, R Knochenmuss

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