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Journals

Repeatable Group Models for Molecular Associations in Dental Collagen

October 16, 2008

Author(s)

Rafael L. Bowen

Type I collagen fibrils are essential components of teeth, bones, and other anatomical structures. A clear understanding of fibril characteristics could be of...

Crystal Structure of the Layered Perovskite-Like Sr_n(Nb,Ti)_nO_3n+2 Compounds

October 16, 2008

Author(s)

Igor Levin, Leonid A. Bendersky

The effects of combinations of octadedral tilts on the symmetries of layered A nB nX 3n+2 structures were considered. Two complimentary approaches were used to...

Fractographic Failure Analysis of a Broken Tooth Following Larnygoscopy

October 16, 2008

Author(s)

Janet Quinn, L W. Schultheis

ckground: A tooth broken subsequent to laryngoscopy was fractographically analyzed. The science of fractography involves examination of fracture surfaces to...

Effect of a Bonding Agent on the Biochemical Activity of Remineralizing Resin-Based Ca-PO₄ Cements

October 16, 2008

Author(s)

Sabine H. Dickens, Glenn M. Flaim

This study examined whether fluoride in a resin-based Ca-PO4 cements (RCPC) or a barrier of a bonding agent could compromise the remineralization potential of...

Theory of Curvature and Grooving Effects in DIGM I: The Physics

October 16, 2008

Author(s)

John W. Cahn, O Penrose

We take the formulation of steady-state diffusion-induced grain boundary motion from our earlier work [1], and combine it with the results of Mullins' theory...

UVO Tunable Superhydrophobic to Superhydrophilic Wetting Tranistion on Biomimetic Nanostructured Surfaces

October 16, 2008

Author(s)

Joong T. Han, Sangcheol Kim, Alamgir Karim

We present a tunable sigmoidal wetting transition from superhydrophobicity (CA > 170o) to superhydrophilicity (CA 10o) on a single nanostructured hybrid film...

Oxidative Chloride Adsorption and Lead upd on Cu(100): Investigations Into Surfactant-Assisted Epitaxial Growth

October 16, 2008

Author(s)

Thomas P. Moffat

The influence of chloride adsorption and lead upd on the step dynamics of Cu(100) has been examined in acid perchlorate solution. A c(2x2) Cl adlayer is formed...

Materials Characterization of Thin Films of Epoxide Functionalized Silsesquioxanes as Potential Underfill Encapsulants

October 16, 2008

Author(s)

Eric K. Lin, Wen-Li Wu, C X. Zhang, R M. Laine

Current underfill materials generally consist of an epoxy resin filled withsilica particles and are designed to reduce stresses arising from the difference in...

Application of Fluorescent Molecules as In-Situ Probes of Bone Cement Cure

October 16, 2008

Author(s)

Francis W. Wang, D G. Sauder

This paper describes the fluorescence behavior of anthracene and Re(CO) 3CIL, (where L=4,7-diphenyl-1,10-phenanthroline) in a commercial bone cement. New in...

Isothermal Stress and Elasticity Tensors for Ions and Point Dipoles Using Ewald Summations

October 16, 2008

Author(s)

K Van Workum, K Yoshimoto, J J. de Pablo, Jack F. Douglas

The isothermal stress tensor and isothermal elasticity tensor for systems of point charges and of non-polarizable point dipoles are derived from the strain...

Alloy Selection

October 16, 2008

Author(s)

C A. Handwerker, Ursula R. Kattner, Kil-Won Moon, J Bath, E -. Bradley, P Snugovsky

In this chapter, the key results and analyses leading to the choice of tin-silver-copper alloys by NEMI as the new national standard Pb-free solder system are...

Non-quantization of Current in an Annular Bose-Einstein Condensate

October 16, 2008

Author(s)

D L. Feder, L A. Collins, Charles W. Clark

The circulating states of a Bose-Einstein condensate confined in an annulus are investigated both analytically and numerically. It is demonstrated that while...

Purcell and Local-Field Effects in Dielectric Microcavities

October 16, 2008

Author(s)

A Rahmani, Garnett W. Bryant

We present a general, semi-microscopic, self-consistent treatment of spontaneous emission for a two-level atom in a dielectric microcavity with arbitrary shape...

Trainspotters Log Major Delays

October 16, 2008

Author(s)

Eric A. Cornell

Hau and her colleagues suggest that their newly demonstrated ability to control the flow of optical information may have technological relevance in the quantum...

Observation of Soliton Explosions

October 16, 2008

Author(s)

S T. Cundiff, J M. Soto-Crespo, N N. Akhmediev

We show, experimentally and numerically, that Ti: sapphire mode-locked lasers can operate in a regime in which they produce exploding solitons. This happens...

The Realization and the Dissemination of Thermodynamic Temperature Scales

October 16, 2008

Author(s)

Howard W. Yoon

Since the establishment of the International Temperature Scale of 1190 (ITS-90), much progress has been made in the development of radiometers and blackbody...

NIST Radiance Temperature and Infrared Spectral Radiance Scale at Near-Ambient Temperatures

October 16, 2008

Author(s)

Sergey Mekhontsev, V B. Khromchenko, Leonard Hanssen

The realization and the dissemination of spectral radiance and radiance temperature scales in the temperature range of -50 C to 250 C and spectral range of 3 m...

Comment on 'Laterally Squeezed Excitonic Wave Function in Quantum Wires'

October 16, 2008

Author(s)

Garnett W. Bryant, Y B. Band, Paul S. Julienne

Recent magnetophotoluminescence data on T-shaped quantum wires is reinterpreted based on a detailed theory of magnetoexcitons in T-shaped quantum wires. We show...

Polarization Locked Vector Solitons and Axis Instability in Optical Fiber

October 16, 2008

Author(s)

S T. Cundiff, B C. Collings, K Bergman

We experimentally observe polarization-locked vector solitons in optical fiber. Polarization locked-vector solitons use nonlinearity to preserve their...

Primary Radioactive Gas Standards (Excluding Radon)

October 16, 2008

Author(s)

Michael P. Unterweger

This paper presents an overview of the primary calibration of radioactive gas standards using length-compensated internal gas counters. The principal of length...

Applicability of Layered Sine-Gordon Models to Layered Superconductors II: Case of Magnetic Coupling

October 16, 2008

Author(s)

I Nandori, K Vad, S Meszaros

We show that the phase structure of layered two-dimensional (2D) sine-Gordon systems, which interact via an interlayer coupling, depends on the number of layers...

Scaled Born Cross Sections for Excitations of H₂ by Electron Impact

October 16, 2008

Author(s)

Yong Sik Kim

This article describes the scaling of plane-wave Born cross sections for the excitation of the H2 molecule to four low-lying electronic states (B singlet Sigma...

Experimental Demonstration of Signal Extration for LISA

October 16, 2008

Author(s)

O Jennrich, R T. Stebbins, P L. Bender

We present a scheme for the signal extraction for LISA. The underlying principle is demonstrated and an experimental setup for testing thescheme is shown. We...

Instrumentation for Old Gravity

October 16, 2008

Author(s)

J E. Faller

Instrumental capabilities for both relative and absolute gravity measurements have evolved over the past 40 years to the point where today measurements can be...

Radioanalytical Emergency Response Exercise

October 16, 2008

Author(s)

Kenneth G. Inn, Iisa Outola, S Nour, Hiromu Kurosaki, L Albin, A Berne

The National Institute of Standards and Technology (NIST Radiochemistry Intercomparison Program) and the Environmental Measurements Laboratory (EML Performance...

Electron Magnetic Resonance: Necessity for a Modified Bloch Equation

October 16, 2008

Author(s)

B- -. Segev, Y B. Band

We show that a modified Bloch equation for the electronic magnetic moment is necessary when the magnetic moment explicitly contains a diamagnetic contribution...

uses of Small Particle Growth in Silane Discharges

October 16, 2008

Author(s)

G Bano, K Rozsa, Alan Gallagher

Silicon-based particles that grow in a silane radio frequency (RF) discharge are studied by light scattering. Average particle size and the corresponding...

Searching for the Most Robust Reference Value From Intercomparison Exercise -Seaweed Radionuclide Standard Reference Material (SRM 4359)

October 16, 2008

Author(s)

Iisa Outola, James J. Filliben, Kenneth G. Inn

The National Institute of Standards and Technology (NIST) seaweed Standard Reference Material (SRM4359) was developed through an intercomparison of 24...

Transport of Atoms in a Quantum Conveyor Belt

October 16, 2008

Author(s)

A Browaeys, H H ffnert, C R. McKenzie, S L. Rolston, Kristian Helmerson, William D. Phillips

We have performed experiments using a 3D-Bose-Einstein condensate of sodium atoms in a 1D optical lattice to explore some unusual properties of band-structure...

Observation of Persistent Flow of a Bose-Einstein Condensate in a Toroidal Trap

October 16, 2008

Author(s)

Changhyun Ryu, Mikkel Andersen, Pierre Clade, Vasant Natarajan, Kristian Helmerson, William D. Phillips

We have observed the persistent flow of Bose-condensed atoms in a toroidal trap. The flow persists without decay for up to 10 s, limited only by experimental...

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