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Journals

Direct Observation of Zitterbewegung in a Bose-Einstein condensate

July 3, 2013

Author(s)

Lindsay J. LeBlanc, Matthew Beeler, Karina Jimenez-Garcia, Abigail R. Perry, Seiji Sugawa, Ross Williams, Ian B. Spielman

Zitterbewegung, a force-free trembling motion first predicted for relativistic fermions like electrons, was an unexpected consequence of the Dirac equation's...

Compression-Fatigue, Elastic Modulus, and Thermal Contraction of Insulated Conduit Arrays of ITER CS Modules

July 3, 2013

Author(s)

Richard Reed, Robert Walsh, Dash Weeks, Joseph D. McColskey, N. N. Martovsky

Compression-fatigue tests at ∼77 K were conducted to compare two insulation systems (epoxy resin impregnated glass/Kapton) for use in the ITER central solenoid...

Protocols for the High Temperature Measurement of the Seebeck Coefficient in Thermoelectric Materials

July 2, 2013

Author(s)

Joshua B. Martin

In Seebeck coefficient metrology, the present diversity in apparatus design, acquisition methodology, and contact geometry, has resulted in conflicting...

Strong equivalence of reversible circuits is coNP-complete

July 2, 2013

Author(s)

Stephen P. Jordan

It is well-known that deciding equivalence of logic circuits is a coNP-complete problem. As a corollary, the problem of deciding weak equivalence of reversible...

What's in a 'NYM?

July 1, 2013

Author(s)

Robert R. Keller

The field of electron microscopy, by its very diverse nature, abounds with acronyms: AEM, EF-TEM, ESEM, FE-SEM, HREM, HRTEM, HVEM, SEM, STEM, TEM, and VP-SEM...

A Prescription for Sub-Millimeter-Wave Transistor Characterization

July 1, 2013

Author(s)

Dylan F. Williams, Adam C. Young, Urteaga Miguel

We present an approach for characterizing transistors embedded in microstrip lines formed on a thin bisbenzocyclobutene-based (BCB) monomers film at sub...

Calibration-Kit Design for Millimeter-Wave Silicon Integrated Circuits

July 1, 2013

Author(s)

Dylan F. Williams, Phillip Corson, Sharma Jahnavi, Krishnaswamy Harish, Tai Wei, George Zacharias, Ricketts David, Watson Paul, Dacquay Eric, Voinigescu Sorin

We study and present design guidelines for thru-reflect-line vector-network-analyzer calibration kits used for characterizing circuits and transistors...

Parallel Geometric Classification of Stem Cells by Their 3D Morphology

July 1, 2013

Author(s)

Derek Juba, Antonio Cardone, Cheuk Y. Ip, Carl Simon Jr., Christopher K. Tison, Girish Kumar, Mary C. Brady

Autologous stem cells show great promise for tissue engineering as they can regenerate diseased or damaged tissue, without requiring an organ donor or causing...

Conditions for two-photon interference with coherent pulses

July 1, 2013

Author(s)

Yong-Su Kim, Oliver T. Slattery, Paulina Kuo, Xiao Tang

We report experiments on two-photon interference between temporally non-overlapping weak coherent pulses. While the single-photon interference is washed out...

Capturing Rare Cells From Blood Using a Packed Bed of Custom-Synthesized Chitosan Microparticles

July 1, 2013

Author(s)

Chandamany Arya, Jason Kralj, Kunqiang Jiang, Matt S. Munson, Thomas Forbes, Don L. DeVoe, Srinivasa R. Raghavan, Samuel Forry

Uniform multifunctional chitosan microparticles were produced in large numbers using a simple and inexpensive microtubing arrangement. The particles were...

Demonstration of a dressed-state phase gate for trapped ions

June 28, 2013

Author(s)

Ting Rei Tan, John P. Gaebler, Ryan S. Bowler, Yiheng Lin, John D. Jost, Dietrich G. Leibfried, David J. Wineland

We demonstrate a trapped ion entangling gate scheme proposed by Bermudez et~al [Phys. Rev. A 85, 040302 (2012)]. Simultaneous excitation of a strong carrier and...

Experimental study of radiative heat transfer in a translucent fuel sample exposed to different spectral sources

June 28, 2013

Author(s)

Gregory T. Linteris, Nicolas Ball, J. Raynard, Guillermo Rein, Jose L. Torero, M. Forsth, P. Boulet, G. Parent, Z. Acem

Radiative heat transfer to a solid is a key mechanism in fire dynamics, and in-depth absorption is especially of importance for translucent fuels. The sample...

Optical constants and spatial uniformity of thermally grown oxide layer of custom, induced-junction, silicon photodiodes for a predictable quantum efficient detector

June 28, 2013

Author(s)

Malcolm G. White

We have investigated the optical properties of self-induced inversion-layer silicon photodiodes using spectroscopic ellipsometric measurement techniques. We...

Hybrid quantum-well system for wavelength-channel selection

June 28, 2013

Author(s)

Lu Deng, Edward W. Hagley, Chengjie Zhu

We consider a hybrid quantum-well structure consisting of regions whose properties alternate between active Raman gain and electromagnetically induced...

99.996% 12C films enriched and deposited in situ

June 28, 2013

Author(s)

Kevin J. Dwyer, Joshua M. Pomeroy, David S. Simons

A mass selected ion beam system is used to isotopically enrich and deposit thin films, which are measured to be 99.9961(4)% 12C. In solid state quantum...

Separation of variables in an asymmetric cyclidic coordinate system

June 27, 2013

Author(s)

Howard S. Cohl, Hans Volkmer

A global analysis is presented of solutions for Laplace's equation on three-dimensional Euclidean space in one of the most general orthogonal asymmetric...

Certified Miniaturized Charpy Specimens for the Indirect Verification of Small-Size Impact Machines

June 27, 2013

Author(s)

Enrico Lucon

Small specimen test techniques are becoming ever more popular as the need increases to characterize mechanical properties by use of the smallest possible amount...

Comparison and Analysis of Collisional-Radiative Models at the NLTE-7 Workshop

June 25, 2013

Author(s)

Yuri Ralchenko, H.-K. Chung, S Hansen, C. Bowen, C. J. Fontes

We present the main results of the 7th Non-Local Thermodynamic Equilibrium Code Comparison Workshop held in December 2011 in Vienna, Austria. More than twenty...

Nanotribology Application in the Coining Industry (II) - Optimization of Lubricant Film Formation on Blanks

June 25, 2013

Author(s)

Tsi-Neng Ying, Richard S. Gates

A new method has been developed to lubricate metal coin blanks during the coin production process. The lubricant is formed on the metal surfaces as a...

Applications of Heat Transfer Fundamentals to Fire Modeling

June 25, 2013

Author(s)

Ofodike A. Ezekoye, M J. Hurley, Jose L. Torero, Kevin B. McGrattan

The fire industry relies on fire engineers and scientists to develop materials and technologies used to either resist, detect, or suppress fire. While...

Solving the Robot-World/Hand-Eye Calibration Problem Using the Kronecker Product

June 24, 2013

Author(s)

Mili I. Shah

This paper constructs a closed-form solution to the robot-world/hand-eye calibration paper using the Kronecker product. In other words, it constructs the...

Consideration of Envelope Airtightness in Modelling Commercial Building Energy Consumption

June 24, 2013

Author(s)

Lisa C. Ng, Andrew K. Persily, Steven J. Emmerich

As various strategies for improving building envelope and HVAC equipment efficiencies are increasingly used to reduce building energy use, a greater percentage...

Performance Analysis of an Integrated Micro Cryogenic Cooler and Miniature Compressor for Cooling to 200 K

June 24, 2013

Author(s)

Ryan J. Lewis, Mu Hong Lin, Yunda Wang, Jill Cooper, Peter E. Bradley, Ray Radebaugh, Marcia L. Huber, Yung-Cheng Lee

Joule-Thomson (J-T) based micro cryogenic coolers (MCCs) are attractive because they can provide the cryogenic temperatures needed for small electronic devices...

Enabling an Enterprise-wide, Data-centric Operating Environment

June 21, 2013

Author(s)

David F. Ferraiolo, Serban I. Gavrila, Wayne Jansen

Although access control (AC) currently plays an important role in securing DSs, if properly envisaged and designed, access control can serve a more vital role...

Effects of Processing on Microstructure and Mechanical Properties of Ti-6Al-4V Fabricated using Electron Beam Melting (EBM), Part 1: Distance from Build Plate and Part Size

June 20, 2013

Author(s)

Nikolas W. Hrabe, Timothy P. Quinn, Ryan Kircher

Selective electron beam melting (EBM) is a layer-by-layer additive manufacturing technique that shows great promise for fabrication of medical devices and...

Effects of Processing on Microstructure and Mechanical Properties of Ti-6Al-4V Fabricated using Electron Beam Melting (EBM), Part 2: Energy Input, Orientation, and Location

June 20, 2013

Author(s)

Nikolas W. Hrabe, Timothy P. Quinn, Ryan Kircher

Selective electron beam melting (EBM) is a layer-by-layer additive manufacturing technique that shows great promise for fabrication of medical devices and...

Detection of Topological Matter with Quantum Gases

June 20, 2013

Author(s)

Ian B. Spielman

Creating and measuring topological matter with order deeply imbedded its quantum mechanical eigenstates structure presents unique experimental challenges...

Cubic Silsesquioxanes as Tunable High Performance Coating Materials

June 19, 2013

Author(s)

Christopher Soles, Hyun W. Ro, Aaron Forster, Dave J. Krug, Vera Popova, Richard M. Laine

In this manuscript a series of cubic silsequioxane monomers with their eight vertices functionalized with different organic ligands terminated with...

Just Add Water reproducible singly dispersed silver nanoparticle suspensions

June 19, 2013

Author(s)

Robert I. MacCuspie, Andrew J. Allen, Matthew N. Martin, Vincent A. Hackley

Silver nanoparticles (AgNPs) are of interest due to their antimicrobial attributes, which are derived from their inherent instability and subsequent release of...

Spectral responsivity based calibration of photometer and colorimeter standards

June 19, 2013

Author(s)

George P. Eppeldauer

Several new generation transfer- and working-standard illuminance meters and tristimulus colorimeters have been developed at the National Institute of Standards...

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