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Journals

Electronically Induced Atom Motion in Engineered CoCu Nanostructures

August 18, 2006

Author(s)

Joseph Stroscio, Francesca Tavazza, Jason Crain, Robert Celotta, Anne M. Chaka

We have measured the quantum yield for exciting the motion of a single Co atom in CoCu n linear molecules constructed on a Cu(111) surface. The Co atom switched...

Improved uncertainty budget for optical frequency measurements with microkelvin neutral atoms: Results for a high-stability ⁴⁰Ca optical frequency standard

August 18, 2006

Author(s)

G Wilpers, Christopher W. Oates, Leo W. Hollberg

Using a Ca optical frequency standard at 657 nm, we demonstrate a method for reducing uncertainties in absolute frequency measurements of optical transitions...

From Molecular Insights and Chemical Technologies to Communications and Expert Systems: a Few Short Thermodynamic Stories

August 17, 2006

Author(s)

Michael D. Frenkel

This Hugh M. Huffman Memorial Award Lecture illustrates the power of phenomenological and statistical thermodynamics and the unique role of thermochemical data...

Encapsulated Chondrocyte Response to Pulsatile Flow Bioreactor

August 16, 2006

Author(s)

James A. Cooper, W Li, L A. Bailey, Steven D. Hudson, Sheng Lin-Gibson, Kristi S. Anseth, Rocky Tuan, N Washburn

We have developed a bioreactor using microfluidic techniques that allow for dynamic culture conditions and measurement of the fluid flow impinging upon a three...

Minimum-Phase Calibration of Sampling Oscilloscopes

August 15, 2006

Author(s)

Andrew M. Dienstfrey, Paul D. Hale, Darryl A. Keenan, Tracy S. Clement, Dylan F. Williams

We describe an algorithm for determining the minimum phase of a linear time-invariant response function from its magnitude. The procedure is based on Kramers...

A Universal Approach to Electrically Connecting Nanowire Arrays Using Nanoparticles Application to a Novel Gas Sensor Architecture

August 14, 2006

Author(s)

Prahalad M. Parthangal, Richard E. Cavicchi, Michael R. Zachariah

We report on a novel, in-situ approach toward connecting and electrically contacting vertically aligned nanowire arrays using conductive nanoparticles. The...

Frequency-stabilized cavity ring-down spectrometer for high-sensitivity measurements of water vapor concentration

August 12, 2006

Author(s)

Joseph Hodges, D Lisak

We present a portable spectrometer that uses the frequency-stabilized cavity ring-down spectroscopy technique to realize high-precision measurements of trace...

Microstructural Characterization of Al-7075 T651 Chips and Work Pieces Produced by High Speed Machining

August 11, 2006

Author(s)

Carelyn E. Campbell, Leonid A. Bendersky, William J. Boettinger

Dehydration vs. Deamination of N-Terminal Glutamine in Collision-Induced Dissociation of Protonated Peptide Ions

August 11, 2006

Author(s)

Pedatsur Neta, Quan-Long Pu, Lisa E. Kilpatrick, Xiaoyu Yang, Stephen E. Stein

Some of the most prominent neutral losses in peptide ion fragmentation are the loss of ammonia and water from N-terminal glutamine. These processes are studied...

Anti-Biofouling Properties of Comb-Like Block Copolymer With Amphiphilic Side-Chains

August 11, 2006

Author(s)

Sitaraman Krishnan, R Ayothi, A Hexemer, J Finlay, K E. Sohn, R Perry, Christopher K. Ober, E J. Kramer, M E. Callow, J A. Callow, Daniel A. Fischer

Surfaces of novel block copolymers with amphiphilic side chains were studied for adhesion of marine organisms. the surface-active polymer, obtained by grafting...

Electrostatically gated Si devices: Coulomb blockade and barrier capacitance

August 10, 2006

Author(s)

Neil M. Zimmerman, Akira Fujiwara, Hiroshi Inokawa, Yasuo Takahashi

Using a new device resembling a nano-CCD, and measuring the Coulomb blockade, we identify a new parameter, the "barrier capacitance". We then show how this...

Capillary Porosity Depercolation/Repercolation in Hydrating Cement Pastes via Low Temperature Calorimetry Measurements and CEMHYD3D Modeling

August 9, 2006

Author(s)

Dale P. Bentz

The percolation state of the capillary porosity in a hydrating cement paste has a large influence both on transport properties and on durability performance...

Single-Molecule Charge Transport Measurements Reveal Technique-Dependant Perturbations

August 8, 2006

Author(s)

Dwight S. Seferos, A S. Blum, James G. Kushmerick, Guillermo Bazan

We compare scanning tunneling microscopy (STM) imaging with single molecule conductive atomic force microscopy (C-AFM) measurements by probing a series of...

Stationary Phase Approximation for the Strength of Optical Feshbach Resonances

August 7, 2006

Author(s)

R Ciurylo, Eite Tiesinga, Paul S. Julienne

Analytic expressions for the width and shift of a photoassociative resonance or an optically induced Feshbach resonance in ultra-cold collisions are derived...

Enthalpy of Combustion of Fuels as a Function of Distillate Cut: Application of an Advanced Distillation Curve Method

August 5, 2006

Author(s)

Thomas J. Bruno, Beverly L. Smith

In previous work, several significant improvements in the measurement of distillation curves for complex fluids were introduced. The modifications to the...

Calculation of the uncertainty of the mean of autocorrelated measurements

August 4, 2006

Author(s)

Nien-Fan Zhang

When repeated measurements are autocorrelated, it is not appropriate to use the traditional approach to calculate the uncertainty of the average of the...

Design of Self-Assembled Multiferroic Nanostructures in Epitaxial Films

August 4, 2006

Author(s)

Jianhua Li, Julia Slutsker, Alexander L. Roytburd

Transport dynamics of single ions in segmented microstructured Paul trap arrays

August 4, 2006

Author(s)

Rainer Reichle, Dietrich G. Leibfried, Brad R. Blakestad, Joseph W. Britton, John D. Jost, Emanuel H. Knill, C. Langer, R Ozeri, Signe Seidelin, David J. Wineland

It was recently proposed to use small groups of trapped ions as qubit carriers in miniaturized electrode arrays that comprise a large number of individual...

The Glass Transition of Miscible Binary Polymer-Polymer Thin Films

August 4, 2006

Author(s)

Brian M. Bescancon, Christopher Soles, P A. Green

The average glass transition temperatures, Tg, of thin homopolymer films exhibit a thickness dependence, Tg(h), determined by a confinement effect and by the...

Broadband coherent anti-strokes Raman spectroscopy characterization of polymer thin films

August 2, 2006

Author(s)

Lee J. Richter, M C. Gurau, Zachary Schultz

Broadband coherent anti-Stokes Raman spectroscopy (CARS) is demonstrated as an effective probe of the polymer thin film materials. A simple modification to a...

Scanning Temperature Gradient Focusing

August 2, 2006

Author(s)

S J. Hoebel, K M. Balss, Barbara J. Jones, C Malliaris, Matt S. Munson, Wyatt N. Vreeland, David J. Ross

Temperature gradient focusing (TGF) is a recently developed technique for the simultaneous concentration and electrophoretic separation of ionic analytes in...

Load-Displacement Relations for Nanoindentation of Viscoelastic Materials

August 2, 2006

Author(s)

Chien-Kuo Liu, S H. Lee, Li Piin Sung, Tinh Nguyen

A model based on the Burgers viscoelastic concept has been developed to describe the nanoindentation behaviors of polymeric materials. An analytical solution of...

MEMS Sensors for HVAC&R: Small, Fast, Cheap (in Polish)

August 1, 2006

Author(s)

David A. Yashar, Piotr A. Domanski

Microelectronic mechanical systems (MEMS) have revolutionized the market for sensors by providing small, fast-responding measurement devices at low cost. They...

Standards in Gene Expression Microarray Experiments

August 1, 2006

Author(s)

Marc L. Salit

The use of standards in gene expression measurements with DNA microarrays is ubiquitous—they just are not yet the kind of standards that have yielded microarray...

Oxidative changes in the DNA of stroma and epithelium from the female breast: potential implications for breast cancer

August 1, 2006

Author(s)

D. C. Malins, K. M. Anderson, Pawel Jaruga, C. R. Ramsey, N. K. Gilman, W. M. Green, S. W. Rostad, J. T. Emerman, M Miral Dizdar

Calcium Phosphate Cement With Non-Rigidity and Strength Durability for Periodontal Bone Repair

August 1, 2006

Author(s)

Hockin D. Xu, Shozo Takagi, Limin Sun, L A. Hussain, Laurence C. Chow, William F. Guthrie, James H. Yen

Background. The need for biomaterials to treat periodontal osseous defects has increased as the world population ages. The objective of the present study was to...

Injectable and Macroporous Calcium Phosphate Cement Scaffold

August 1, 2006

Author(s)

Hockin D. Xu, Michael Weir, Elena F. Burguera, A M. Fraser

Calcium phosphate cement (CPC) can be molded and self-harden in vivo to form resorbable hydroxyapatite with excellent osteoconductivity. The objective of this...

Nano Dicalcium Phosphate Anhydrous-Whisker Composites With High Strength and Ca and PO₄ Release

August 1, 2006

Author(s)

Hockin D. Xu, Limin Sun, Michael Weir, Joseph M. Antonucci, Shozo Takagi, Laurence C. Chow, Max A. Peltz

The main challenges facing composite restorations are secondary caries and bulk fracture. The objective of this study was to investigate the Ca and PO4 release...

A Hybrid Finite Element-Analytical Method For Determining the Intrinsic Elastic Moduli of Particles Having Moderately Extended Shapes and a Wide Rande of Elastic Properties

August 1, 2006

Author(s)

Edward J. Garboczi, Jack F. Douglas, Howard Hung

The presence of a low (dilute) concentration of paniculate inclusions having any shape and any property mismatch with the matrix in which they are placed...

Fermi Level Alignment in Self-Assembled Molecular Layers: The Effect of Coupling Chemistry

August 1, 2006

Author(s)

Christopher D. Zangmeister, Steven W. Robey, Roger D. van Zee

Photoelectron spectroscopy was used to explore changes in Fermi level alignment, within the p-p* gap, arising from changes in the coupling chemistry of...

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