Journals

Compact GdBa₂Cu₃O_7-δ coated conductor cables for electric power transmission and magnet applications

February 10, 2011

Author(s)

Daniel C. van der Laan, Xifeng Lu, Loren F. Goodrich

Bundling high-temperature superconductors together to form high current cables is required in, for instance, power transmission and low-inductance magnet...

Gradient Solvent Vapor Annealing of Block Copolymer Thin Films Using a Microfluidic Mixing Device

February 9, 2011

Author(s)

Kathryn L. Beers, Michael J. Fasolka, Julie N. Albert, Timothy D. Bogart, Ronald L. Lewis, J. Brian Hutchison, Bryan D. Vogt, Thomas H. Epps

Solvent vapor annealing (SVA) with solvent mixtures is a promising approach for controlling block copolymer thin film self-assembly. In this work, we present...

Comparison of the Sensitivity and Image Contrast in Spontaneous Raman and Coherent Stokes Raman Scattering Microscopy of Geometry Controlled Samples

February 9, 2011

Author(s)

Hyun M. Kim, Chris A. Michaels, Garnett W. Bryant, Stephan J. Stranick

We experimentally compare the performance and contrast differences between spontaneous and coherent Stokes Raman scattering microscopy. We demonstrate the...

Arithmetic Progressions on Edwards Curves

February 8, 2011

Author(s)

Dustin Moody

We look at arithmetic progressions on elliptic curves known as Edwards curves. By an arithmetic progression on an elliptic curve, we mean that the x-coordinates...

High Temperature Magnetic Ordering in the 4d Perovskite SrTcO₃

February 7, 2011

Author(s)

Efrain E. Rodriguez, Frederic Poineau, Anna Llobet, Brendan J. Kennedy, Maxim Avdeev, Gordon J. Thorogood, Melody L. Carter, Ram Seshadri, David J. Singh, Anthony K. Cheetham

Controlling the Microstructure of Solution-Processible Small Molecules in Thin-Film Transistors through Substrate Chemistry

February 4, 2011

Author(s)

Regis J. Kline, Steven D. Hudson, Xinran Zhang, David J. Gundlach, Andrew Moad, Lee J. Richter, Oana Jurchescu, Thomas Jackson, Sanker Subramanian, John E. Anthony, Michael F. Toney

Solution-processible small molecules have tremendous potential for providing both high charge carrier mobility and low cost processing. This study outlines a...

Managing Security: The Security Content Automation Protocol

February 4, 2011

Author(s)

Shirley M. Radack, D. Richard Kuhn

Managing information systems security is an expensive and challenging task. Many different and complex software components- including firmware, operating...

Passive Intermodulation due to Self-Heating in Printed Transmission Lines*

February 2, 2011

Author(s)

Eduard Rocas, Juan C. Collado Gomez, Nathan D. Orloff, Jordi Mateu, James C. Booth, Juan M. O'Callaghan, Alberto Padilla

AbstractThis article proposes a mechanism by which third-order intermodulation distortion due to self-heating is generated in transmission lines. The work...

In situ Formation of Silver Nanoparticles in Photocrosslinking Polymers

February 2, 2011

Author(s)

Yajun Cheng, Diana N. Zeiger, John A. Howarter, Xinran Zhang, Nancy Lin, Joseph M. Antonucci, Sheng Lin-Gibson

Nanocomposites of difunctional methacrylate polymer/silver nanoparticles have been synthesized by coupling photoinitiated free radical polymerization with in...

The program LOPT for least-squares optimization of energy levels

February 1, 2011

Author(s)

Alexander Kramida

The article describes a program that solves the least-squares optimization problem for finding the energy levels of a quantum-mechanical system based on a set...

Microscale thermogravimetric analysis for determining nanoparticle purity and surface coverage

February 1, 2011

Author(s)

Elisabeth Mansfield

Minimum-Risk Layer 2 Trigger Levels for Proactive Media-Independent Handovers

February 1, 2011

Author(s)

David W. Griffith, Alexandre Delye, Nada T. Golmie

Anticipated handovers that use Link Going Down (LGD) and Link Down (LD) trigger events require the network operator to set the LGD trigger high enough that the...

Nanomaterial Toxicity: Emerging Standards and Efforts to Support Standards Development

February 1, 2011

Author(s)

Laurie E. Locascio, Vytautas Reipa, Justin M. Zook, Richard C. Pleus

For the first time in the history of industrialization, nanotechnology offers the unique opportunity to consider material safety ahead of its full...

Preparation, Magnetism and Electronic Structures of Cadmium Technetates

February 1, 2011

Author(s)

Efrain E. Rodriguez, Frederic Poineau, Anna Llobet, J. D. Thompson, Ram Seshadri, Anthony K. Cheetham

Metal-Molecule-Silicon Junctions Produced by Flip Chip Lamination of Dithiols

February 1, 2011

Author(s)

Michael A. Walsh, Curt A. Richter, Christina A. Hacker

The integration of organic molecules with silicon is increasingly being studied for potential uses in hybrid electronic devices. Creating dense and highly...

Directed 2D-to-3D pattern transfer method for controlled fabrication of topologically complex three- dimensional nanostructures in silicon

February 1, 2011

Author(s)

Konrad Rykaczewski, Owen J. Hildreth, Ching P. Wong, Andrei G. Fedorov, John H. Scott

A process allowing for control over the 3D motion of catalyst nanostructures during Metal-assisted Chemical Etching by their local pinning prior to etching is...

Electron Beam Induced Growth of TiO2 Nanostructures

February 1, 2011

Author(s)

Renu Sharma

We report the evolution of TiO2 nanostructures when Au nanoparticles, supported on single crystal TiO2 substrates, were heated in ~2 Torr of flowing O2 in an...

Approximating the Number of Bases for Almost All Matroids

February 1, 2011

Author(s)

Brian D. Cloteaux

We define a class of matroids A for which a fully polynomial randomized approximation scheme (fpras) exists for counting the number of bases of the matroids. We...

Characterization of Power-to-Phase Conversion in High-Speed P-I-N Photodiodes

February 1, 2011

Author(s)

Jennifer A. Taylor, Shubahshish Datta, Archita Hati, Craig W. Nelson, Franklyn J. Quinlan, Abhay Joshi, Scott A. Diddams

Fluctuations of the optical power incident on a photodiode can be converted into phase fluctuations of the resulting electronic signal due to nonlinear...

Development of Ultrasmall-Angle X-ray Scattering - X-ray Photon Correlation Spectroscopy

February 1, 2011

Author(s)

Fan Zhang, Andrew J. Allen, Lyle E. Levine, Jan Ilavsky, Gabrielle G. Long, Anthony M. Santana

In this paper, we present the development of ultrasmall-angle X-ray scattering - X-ray photon correlation spectroscopy (USAXS-XPCS). This technique takes...

Surface Segregation of Nanoparticles Driven by Supercritical Carbon Dioxide

February 1, 2011

Author(s)

Mitsunori Asada, Peter Gin, Maya K. Endoch, Sushil K. Satija, Tadanori Koga

Cu-Based MOF/Graphene Composites: Synthesis and Surface Characterization

February 1, 2011

Author(s)

Camille Petit, Jacob Burress, Teresa J. Bandosz

A Dosimetric Uncertainty Analysis for Photon-Emitting Brachytherapy Sources: Report of the AAPM Task Group No. 138 and GEC-ESTRO

February 1, 2011

Author(s)

Larry A. DeWerd, Geoffrey S. Ibbott, Ali S. Meigooni, Michael G. Mitch, Mark J. Rivard, Kurt E. Stump, Bruce R. Thomadsen, Jack L. Venselaar

This report addresses uncertainties pertaining to brachytherapy source dosimetry. The ISO Guide to the Expression of Uncertainty in Measurement (GUM) and the...

Tips and Tricks for Characterizing Shape Memory Alloy Wire: Part 4 Thermo-mechanical Coupling

January 31, 2011

Author(s)

Mark A. Iadicola, Christopher B. Churchill, John A. Shaw

This is the fourth paper in our series, identifying unusual phenomena and providing recommendations for the thermo- mechanical characterization of shape memory...

Train the Trainer: Did they Learn? Who Cares?

January 31, 2011

Author(s)

Georgia L. Harris

As metrologists, we think we are good (even expert) at measurements. But, our subject matter expertise is most often in the world of science, and not...

Characterization of Flow Oblique to a Circular Cylinder with Low Aspect Ratio Using 3-D Detached Eddy Simulation

January 31, 2011

Author(s)

Dong Hun Yeo, Nicholas P. Jones

Large-amplitude vibrations of stay cables in cable-stayed bridges can threaten the safety and serviceability of the structures. Understanding of the excitation...

An Upper Bound on Parity Violating Neutron Spin Rotation in He-4

January 31, 2011

Author(s)

Jeffrey S. Nico, William M. Snow, Christopher D. Bass, Tiffany D. Bass, B. E. Crawford, K. F. Gan, B R. Heckel, D Lou, D M. Markoff, A M. Micherdzinska, Hans P. Mumm, A. K. Opper, M Sarsour, E I. Sharapov, H E. Swanson, S. C. Walbridge, V Zhumabekova

We report an upper bound on parity violating neutron spin rotation in He-4. This experiment is the most sensitive search for neutron weak optical activity yet...

A Measurement of the Parity Violating Gamma-ray Asymmetry in the Capture of Polarized Cold Neutrons on Protons

January 31, 2011

Author(s)

Thomas R. Gentile, M T. Gericke, R. Alarcon, S. Balascuta, L. Barron, C S. Blessinger, J D. Bowman, R D. Carlini, W.C. Chen, T E. Chupp, C. Crawford, S. Covrig, M Dabaghyan, N. Formin, S J. Freedman, R C. Gillis, G L. Greene, F W. Hersman, T. Ino, Gordon L. Jones, B Lauss, M Leuschner, W R. Lozowski, R Mahurin, Y Masuda, J Mei, G S. Mitchell, S Muto, H Nann, S A. Page, S I. Penttila, W D. Ramsay, A. Salas-Bacci, S Santra, Katelynn A. Sharma, P.-N. Seo, E I. Sharapov, T B. Smith, William M. Snow, W S. Wilburn, V Yuan

The NPDGamma collaboration reports results from the first phase of a measurement of the parity violating up-down asymmetry A_gamma with respect to the neutron...

In-situ Polarized He3-Based Neutron Polarization Analyzer for SNS Magnetism Reflectometer

January 31, 2011

Author(s)

W-T Lee, X Tong, J. Pierce, M. Fleenor, A. Ismaili, JL Robertson, Wangchun Chen, Thomas R. Gentile, A. Hailemariam, R J. Goyette, A. Parizzi, V Lauter, F. Klose, H. Kaiser, C. Lavelle, DV Baxter, G L. Jones, J. Wexler, L. McCollum

We report here the construction and neutron transmission test results of an in-situ polarized 3He-based neutron polarization analyzer system for the Magnetism...

Loss of 45 Da from a2 Ions and Preferential Loss of 48 Da from a2 Ions Containing Methionine in Peptide Ion Tandem Mass Spectra

January 29, 2011

Author(s)

Yamil Simon, Pedatsur Neta, Xiaoyu Yang, Stephen E. Stein

While analyzing tandem mass spectra of tryptic tripeptides, intense unassigned peaks were observed, which correspond to a neutral loss of 45 Da from a 2 ions...