Journals

Automated Multiprobe Microassembly using Vision Feedback

October 5, 2012

Author(s)

John D. Wason, John T. Wen, Jason J. Gorman, Nicholas Dagalakis

This paper describes the algorithm development and experimental results of a vision-guided multi-probe microassembly system. The key focus is to develop the...

A Bayesian Approach to the Analysis of Split-Plot Product Arrays and Optimization in Robust Parameter Design

October 4, 2012

Author(s)

Adam L. Pintar

Many robust parameter design (RPD) studies involve a split-plot randomization structure and to obtain valid inferences in the analysis, it is essential to...

Absolute absorption and dispersion of a rubidium vapour in the hyperfine Paschen-Back regime

October 4, 2012

Author(s)

Svenja A. Knappe, L. Weller, K.S. Kleinbach, M.A. Zentile, C.S. Adams, I.G. Hughes

Here we report on measurements of the absolute absorption and dispersion properties of an isotopically pure 87Rb vapour for magnetic fields up to and including...

Impact of photo-assisted collisions on superradiant light scattering with Bose-condensates

October 4, 2012

Author(s)

Lu Deng, Xinyu Luo, Edward W. Hagley, Ruquan Wang, Kuiyi Gao

We present experimental evidence supporting the postulation that the secondary effects of light assisted collisions are the main reason that the superradiant...

Two-photon interference using background-free quantum frequency conversion of single photons emitted by an InAs quantum dot

October 4, 2012

Author(s)

Serkan Ates, Imad I. Agha, Angelo Gulinatti, Ivan Rech, Matthew T. Rakher, Antonio Badolato, Kartik Srinivasan

Quasianalytical modal approach for computing Casimir interactions in periodic nanostructures

October 3, 2012

Author(s)

Francesco Intravaia, Paul S. Davids, Ricardo Decca, Vladimir Aksyuk, Daniel Lopez, Diego A. Dalvit

We present an almost fully analytical technique for computing Casimir interactions between 1D periodic lamellar gratings based on a modal approach. Our method...

15N-Labeled Full-Length Apolipoprotein E4 as an Internal Standard for Mass Spectrometry Quantification of Apolipoprotein E Isoforms

October 2, 2012

Author(s)

Meiyao M. Wang, Illarion V. Turko

Apolipoprotein E isoforms (apoE2, apoE3, and apoE4) strongly affect the likelihood of developing Alzheimers disease (AD) with apoE4 being a major risk factor...

Extending single-photon optimized superconducting transition edge sensors beyond the single-photon counting regime

October 2, 2012

Author(s)

Thomas Gerrits, Brice R. Calkins, Nathan A. Tomlin, Adriana E. Lita, Alan L. Migdall, Richard P. Mirin, Sae Woo Nam

Typically, transition edge sensors resolve photon number of up to 10 or 20 photons, depending on the wavelength and TES design. We extend that dynamic range up...

Erratum: "Developments in determining the gravitational potential using toroidal functions"

October 2, 2012

Author(s)

Howard S. Cohl

We fix several errors in "Developments in determining the gravitational potential using toroidal functions" (Astronomische Nachrichten, Vol. 321, Issue 5/6, p...

Biosynthesis of Athmu, a alpha,gamma-hydroxy-ß-amino acid of pahayokolides A-B

October 2, 2012

Author(s)

Li Liu, Dan Bearden, Juan C. Rodriguez, Kathleen S. Rein

Pahayokolides A-B are cyanobacteria derived non-ribosomal peptides which exhibit cytotoxicity against a number of cancer cell lines. The biosynthetic origin of...

A 4:1 transmission-line impedance transformer for broadband superconducting circuits

October 1, 2012

Author(s)

Leonardo M. Ranzani, Lafe F. Spietz, Jose A. Aumentado, Zoya Popovic

We present a 4 : 1 superconducting transmission-line impedance transformer for cryogenic applications. The device transforms 25 {Ω} in the coplanar waveguide to...

Influence of mercury and selenium chemistries on the progression of cardiomyopathy in pygmy sperm whales, Kogia breviceps

October 1, 2012

Author(s)

Colleen E. Bryan Sallee, William C. Davis, Wayne E. McFee, Carola A. Neumann, Jennifer Schulte, Gregory D. Bossart, Steven J. Christopher

More than half of pygmy sperm whales (Kogia breviceps) that strand exhibit signs of cardiomyopathy (CMP). Many factors may contribute to the development of...

A Low-Complexity Solution to Decode Diversity-Oriented Block Codes in MIMO Systems with Inter-Symbol Interference

October 1, 2012

Author(s)

Hamid Gharavi, Chong Xu

In this paper we firstly propose a block-code based general model to combat the Inter-Symbol Interference (ISI) caused by frequency selective channels in a...

Microsecond Accuracy at Multiple Locations: Is it possible without GPS?

October 1, 2012

Author(s)

Michael A. Lombardi

The microsecond is the most discussed unit in industrial timing systems, because microsecond accuracy is required to support critical infrastructure. Most...

Sequential Estimation of Timebase Corrections for an Arbitrarily Long Waveform

October 1, 2012

Author(s)

Chih-Ming Wang, Paul D. Hale, Jeffrey A. Jargon, Dylan F. Williams, Catherine A. Remley

We present a procedure for correcting the timebase distortion and jitter of temporal waveforms of arbitrary lengths. This is achieved by estimating the timebase...

On the Contribution of Bulk Defects on Charge Pumping Current

October 1, 2012

Author(s)

Jason T. Ryan, Richard G. Southwick, Jason P. Campbell, Kin P. Cheung, John S. Suehle

Frequency dependent charge pumping (FD-CP) has emerged as a popular technique for studying the spatial and energetic distribution of defect centers in advanced...

Characterization of Perchlorate in a New Frozen Human Urine Standard Reference Material

October 1, 2012

Author(s)

Lee L. Yu, William C. Davis, Rabia Oflaz, Gregory C. Turk, Jeff M. Jarrett, Liza Valentin, Benjamin C. Blount, Dennis D. Leber, Eric L. Kilpatrick

Perchlorate, an inorganic anion, has recently been recognized as an environmental contaminant by the U.S. Environmental Protection Agency (EPA). Assessment of...

A titanium-nitride near-infrared kinetic inductance photon-counting detector and its anomalous electrodynamics

October 1, 2012

Author(s)

Martin O. Sandberg, Fabio C. da Silva, Kent D. Irwin, David P. Pappas, Sae Woo Nam, David Wisbey, Ben Mazin, Seth Meeker, Jonas Zmuidzinas, Henry G. Leduc

We demonstrate single-photon counting at 1550 nm with titanium-nitride (TiN) microwave kinetic inductancedetectors. Full-width-at-half-maximum energy resolution...

Interstellar Carbodiimide (HNCNH) - A New Astronomical Detection from the GBT PRIMOS Survey via Maser Emission Features

October 1, 2012

Author(s)

Brett A. McGuire, Ryan A. Loomis, Cameron M. Charness, Geoffery A. Blake, Jan M. Hollis, Francis J. Lovas, Philip R. Jewell, Anthony J. Remijan

Historically, searches for new astronomical molecules resulted in the detection of favorable, high line strength transitions based on a thermal approximation to...

The Juliet 1.1 C/C++ and Java Test Suite

October 1, 2012

Author(s)

Frederick E. Boland Jr., Paul E. Black

The Juliet Test Suite 1.1 is a collection of over 81,000 synthetic C/C++ and Java programs with known flaws. These programs are useful as test cases for testing...

Partitioning of Ethanol into Lipid Membranes and its Effect on Fluidity and Permeability as seen by X-ray and Neutron Scattering

October 1, 2012

Author(s)

Laura Toppozini, Clare L. Armstrong, Matthew A. Barrett, Songbo Zheng, Lindy Luo, Hirsh Nanda, Victoria Garcia Sakai, Maikel C. Rheinstadter

We present a combined neutron and x-ray scattering investigation to study the effect of ethanol on molecular structure and dynamics of lipid membranes. DMPC...

Pore Size Distribution and Accessible Pore Size Distribution in Bituminous Coals

October 1, 2012

Author(s)

Richard Sakurovs, Lilin He, Yuri B. Melnichenko, Andrzej P. Radlinski, Tomasz Blach, Hartmut Lemmel, David F. Mildner

Contrast-matching ultra-small-angle neutron scattering (USANS) and small-angle neutron scattering (SANS) techniques have been used to determine the fraction of...

Interference Mitigation Using Adaptive Schemes in Body Area Networks

September 30, 2012

Author(s)

Wen-Bin Yang, Kamran Sayrafian

Considering the medical nature of the information carried in Body Area Networks (BAN), interference from coexisting wireless networks or even other nearby BANs...

Identifying the Dynamic Compressive Stiffness of a Prospective Biomimetic Elastomer by an Inverse Method

September 30, 2012

Author(s)

Steven Mates, Richard L. Rhorer, Aaron M. Forster, Amit Bagchi, Richard Everett, Kirth Simmonds

Elastomeric materials that mimic real soft human tissues are sought to provide realistic experimental devices to simulate the human body's response to...

Multiexciton dynamics in infrared-emitting colloidal nanostructures probed by a superconducting nanowire single-photon detector

September 30, 2012

Author(s)

Richard L. Sandberg, Lazaro A. Padilha, Mumtaz Qazilbash, Wan Ki Bae, Richard D. Schaller, Jeffrey M. Pietryga, Martin Stevens, Burm Baek, Sae Woo Nam, Victor I. Klimov

Carrier multiplication (CM) is the process in which absorption of a single photon produces multiple electron-hole pairs. Here, we evaluate the effect of...

A high resolution gamma-ray spectrometer based on superconducting microcalorimeters

September 28, 2012

Author(s)

Douglas A. Bennett, Robert D. Horansky, Daniel R. Schmidt, Andrew Hoover, Ryan Winkler, Bradley K. Alpert, James A. Beall, William B. Doriese, Joseph W. Fowler, Gene C. Hilton, Kent D. Irwin, Nathan J. Hoteling, Vincent Y. Kotsubo, John A. Mates, Galen C. O'Neil, Michael W. Rabin, Carl D. Reintsema, Francis J. Schima, Daniel S. Swetz, Leila R. Vale, Joel N. Ullom

Improvements in superconductor device fabrication, detector hybridization techniques, and superconducting quantum interference device readout have made square...

Fourier Expansions for a Logarithmic Fundamental Solution of the Polyharmonic Equation

September 28, 2012

Author(s)

Howard S. Cohl

In even-dimensional Euclidean space for integer powers of the Laplacian greater than or equal to the dimension divided by two, a fundamental solution for the...

Impact of size and sorption on degradation of trichloroethylene and polychlorinated biphenyls by nano-scale zerovalent iron

September 28, 2012

Author(s)

Elijah J. Petersen, Roger A. Pinto, Xiangyang Shi, Qingguo Huang

Nano-scale zerovalent iron (nZVI) has been studied in recent years for environmental remediation applications such as the degradation of chlorinated organic...

Optimization of Dispersion and Surface Pretreatment for Single GaN Nanowire Devices

September 28, 2012

Author(s)

Norman A. Sanford, Kristine A. Bertness, Andrew M. Herrero

The correlation of residual contamination with void formation at the contact/SiO2 interface for single GaN NW devices was investigated. The morphology at the...

MEMS Kinematics by Super-Resolution Fluorescence Microscopy

September 27, 2012

Author(s)

Craig D. McGray, Samuel M. Stavis, Joshua Giltinan, Eric Eastman, Samara L. Firebaugh, Jenelle Piepmeier, Jon C. Geist, Michael Gaitan

Super-resolution fluorescence microscopy is used for the first time to study the nanoscale kinematics of a MEMS device in motion across a surface. A device...