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Journals

The Evolution of Time Measurement Part V: Radio Controlled Clocks

April 1, 2012

Author(s)

Michael A. Lombardi

A historical article about the origins and the development of radio controlled clocks (Part IV of a IV-part series). It describes the first time signal radio

A Life-Cycle Cost Comparison of Exit Stairs and Occupant Evacuation Elevators in Tall Buildings

April 1, 2012

Author(s)

David T. Butry, Robert E. Chapman, Allison L. Huang, Douglas S. Thomas

Recent changes in the International Building Code (IBC) require a third exit stair for buildings in excess of 420 ft (128 m) high. Additionally, the new code

An Overview of the Theory and Applications of Metasurfaces: The Two-Dimensional Equivalents of Metamaterials

April 1, 2012

Author(s)

Christopher L. Holloway, Edward E. Kuester, Joshua A. Gordon, James C. Booth, John Ohara, D Smith

Metamaterials are typically engineered by arranging a set of small scatterers or apertures in a regular array throughout a region of space, thus obtaining some

Determination of the Persistence Length of Helical and Non-Helical Polypeptoids in Solution

April 1, 2012

Author(s)

Adrianne M. Rosales, Hannah K. Murnen, Steven R. Kline, Ronald N. Zuckermann, Rachel A. Segalman

Quantum interface between an electrical circuit and a single atom

March 30, 2012

Author(s)

Jacob M. Taylor, Dvir Kafri, David Kielpinski, G J. Milburn, M J. Woolley

Atomic systems are remarkably well suited to storage and processing of quantum information. However, their properties are tightly constrained by physical law

Crystal Structure of the Type I Clathrate Ba8Ni4Ge42

March 30, 2012

Author(s)

Winnie K. Wong-Ng, Qingzhen Huang, Igor Levin, Joseph C. Woicik, Xun Shi, Jihui Yang, James A. Kaduk

The crystal structure of Type-I clathrate Ba8Ni4Ge42 has been determined using neutron powder diffraction, transmission electron microscopy (TEM, for possible

Positively-charged Dimethacrylates to Reduce Bacterial Attachment

March 30, 2012

Author(s)

Nancy J. Lin, Joseph M. Antonucci, Diana N. Zeiger, Sheng Lin-Gibson, Kathy Tang

The widespread incidence of recurrent tooth decay (caries) highlights the need for improved dental restorative materials. Caries are most frequently caused by

Hydrocarbon Separations in a Metal-Organic Framework with Open Iron(II) Coordination Sites

March 30, 2012

Author(s)

Eric D. Bloch, Wendy Queen, Rajamani Krishna, Joseph M. Zadrozny, Craig Brown, Jeffrey R. Long

Elastic Moduli of Composites Containing a Low Concentration of Complex-Shaped Particles Having a General Property Contrast with the Matrix

March 29, 2012

Author(s)

Edward Garboczi, Jack F. Douglas

There are diverse material science problems concerned with how the presence of a low concentration of particulate inclusions having mechanical properties

Force Key Comparison CCM.F-K4.a and CCM.F-K4.b for 4 MN and 2 MN Forces

March 29, 2012

Author(s)

Thomas W. Bartel

This report gives the results for the Comité International des Poids et Mesures (CIPM) key comparisons in force, for the force values of 4 MN and 2 MN

Statistical analysis of PPTA fiber strengths measured under high strain rate condition

March 29, 2012

Author(s)

Jae H. Kim, N. Alan Heckert, Stefan D. Leigh, Richard L. Rhorer, Haruki Kobayashi, Walter G. McDonough, Kirk D. Rice, Gale A. Holmes

OOF3D: An Image-Based Finite Element Solver for Materials Science

March 28, 2012

Author(s)

Valerie R. Coffman, Andrew C. Reid, Stephen A. Langer, Gunay Dogan

Recent advances in experimental techniques (micro CT scans, automated serial sectioning, electron back-scatter diffraction, synchrotron radiation x-rays) have

Interplay Between the Magnetic and Electric Degrees of Freedom in Multiferroic Co₃TeO₆

March 28, 2012

Author(s)

Wen-Hsien Li, Chin-Wei Wang, Daniel Hsu, Chi-Hung Lee, Chun-Ming Wu, Chih-Chieh Chou, Hung-Duen Yang, Yang Zhao, Sung Chang, Jeffrey W. Lynn, Helmuth Berger

Neutron diffraction, magnetic susceptibility, specific heat, and dielectric constant measurements of single crystal Co 3TeO 6 have been measured to study the

Detection and Speciation of Brominated Flame Retardants in High-Impact Polystyrene (HIPS) Polymers

March 27, 2012

Author(s)

Richard D. Holbrook, Jeffrey M. Davis, Keana C. Scott, Christopher W. Szakal

The ubiquitous presence of brominated flame retardants in humans, biota, and the environment has caused concerns about their toxicity, transformations, and

Comment on "Magnetic Structure of Gd₂Ti₂O^d7"

March 27, 2012

Author(s)

J. R. Stewart, G. Ehlers, A. S. Wills, S.T. Bramwell, Jason S. Gardner

M. W. Long and collaborators [Phys. Rev. B, 83 054422 (2011)] recently proposed solutions to the magnetic structure of gadolinium titanate that differ to those

Chiral Modulations and Reorientation Effects in MnSi Thin Films

March 27, 2012

Author(s)

E. A. Karhu, U.K. Robler, A.N. Bogdanov, S. Kahwaji, Brian Kirby, H. Fritzsche, M. D. Robertson, Charles Majkrzak, T. L. Monchesky

Photoiniated wrinkles with controlled morphology from a liquid coating on a rigid substrate: A facile route to tunable, periodic structures

March 27, 2012

Author(s)

Jessica M. Torres, Christopher Stafford, Bryan D. Vogt

Periodic wrinkled surfaces have generated significant interest over the past decade as these structures can be easily fabricated over large areas with minimal

Measurement of H2O-Broadening of O2 A-band Transitions and Implications for Atmospheric Remote Sensing

March 27, 2012

Author(s)

E. M. Vess, C. J. Wallace, H. M. Campbell, V. E. Awadalla, Joseph T. Hodges, David Long, D. K. Havey

We present laboratory measurements of H2O-broadened 16O2 A-band ( ) absorption spectra acquired with a laser-based photoacoustic spectroscopy method. This

A Matter of Policy

March 26, 2012

Author(s)

David F. Ferraiolo, Jeffrey M. Voas, George Hurlburt

This paper discusses system security policies. System policies are the set of rules that when implemented afford a strategy for the protection of information

Pronounced Microheterogeneity in a Sorbitol-Water Mixture Observed through Variable Temperature Neutron Scattering

March 26, 2012

Author(s)

Shin G. Chou, Alan K. Soper, Sheila Khodadadi, Joseph E. Curtis, Susan T. Krueger, Marcus T. Cicerone, Andrew N. Fitch, Evgenyi Shalaev

Fourier and Gegenbauer expansions for a fundamental solution of the Laplacian in the hyperboloid model of hyperbolic geometry

March 23, 2012

Author(s)

Howard S. Cohl, Ernie G. Kalnins

Due to the isotropy of d-dimensional hyperbolic space, there exists a spherically symmetric fundamental solution for its corresponding Laplace-Beltrami operator

Effect of Confinement on Proton Transport Mechanisms in Block Copolymer/Ionic Liquid Membranes

March 23, 2012

Author(s)

Megan L. Hoarfrost, Madhu Sudan Tyagi, Rachel A. Segalman, Jeffrey A. Reimer

Oxygen Reduction Reaction on Electrodeposited Pt_(100-x)Ni_(x): Influence of Alloy Composition and Dealloying

March 22, 2012

Author(s)

Yihua Y. Liu, Carlos M. Hangarter, Ugo Bertocci, Thomas P. Moffat

The electrocatalytic activity of electrodeposited Pt_(100-x)Ni_(x) thin films towards the oxygen reduction reaction (ORR) in perchloric acid was studied for x

Development of Ballistics Identification - From Image Comparison to Topography Measurement in Surface Metrology-

March 22, 2012

Author(s)

Jun-Feng Song, Theodore V. Vorburger, Robert M. Thompson, Thomas Brian Renegar, Xiaoyu Alan Zheng, James H. Yen, Richard M. Silver, Wei Chu

Fired bullets and ejected cartridge cases have unique ballistics signatures left by the firearm. By analyzing the ballistics signatures, forensic examiners can

Measuring domain sizes and compositional heterogeneities in P3HT-PCBM bulk heterojunction thin films with 1H spin diffusion NMR spectroscopy

March 21, 2012

Author(s)

Ryan C. Nieuwendaal, Hyun Wook Ro, David Germack, Regis J. Kline, Calvin Chan, Amit K. Agrawal, David J. Gundlach, David L. VanderHart, Dean M. DeLongchamp

In this manuscript we show that 1H spin diffusion NMR is a valuable method for estimating the domain sizes in thin films of a polymer-fullerene blend for bulk

Frequency-stabilized cavity ring-down spectroscopy

March 21, 2012

Author(s)

David A. Long, A. Cygan, Roger D. van Zee, Mitchio Okumura, C. E. Miller, D Lisak, Joseph T. Hodges

This Frontiers article describes frequency-stabilized cavity ring-down spectroscopy (FS-CRDS), an ultraprecise refinement of conventional cw-CRDS. We review the

Modeling Line Edge Roughness in Lamellar Block Copolymer Systems

March 21, 2012

Author(s)

Paul N. Patrone, Gregg M. Gallatin

Block copolymers offer an appealing alternative to current lithographic techniques with regard to fabrication of the next generation micro- processors. However

Determining the Location and Cause of Unintentional Quantum Dots in a Nanowire

March 21, 2012

Author(s)

Ted C. Thorbeck, Neil M. Zimmerman

Unintentional quantum dots are a common problem for single electron devices in both silicon and carbon. To determine the cause of these dots it is helpful to

Effective multibody interactions of harmonically confined ultracold neutral bosons

March 21, 2012

Author(s)

Philip Johnson, W F. Flynn, D Blume, X Y. Yin, Eite Tiesinga

We use renormalized perturbation theory to calculate effective two-, three-, and four-body interactions for N neutral ultracold bosons in the ground state of an

Unconventional structure-assisted optical manipulation of high-index nanowires in liquid crystals

March 20, 2012

Author(s)

Kristine A. Bertness, David Engstrom, Michael C. Varney, Martin Persson, Rahul P. Trivedi, Mattias Goksor, Ivan I. Smalyukh

Stable optical trapping and manipulation of high-index particles in low-index host media is often impossible due to the dominance of scattering forces over

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