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Journals

Elastic Flow Instability, Curved Streamlines, and Mixing in Microfluidic Flows

November 5, 2004

Author(s)

Jai A. Pathak, David J. Ross, Kalman D. Migler

The optical calcium frequency standards of PTB and NIST

November 5, 2004

Author(s)

U Sterr, C Degenhardt, H Stoehr, Ch. Lisdat, H Schnatz, J Helmcke, F Riehle, G Wilpers, Christopher W. Oates, Leo W. Hollberg

We describe the current status of the optical calcium frequency standard with laser-cooled neutral atoms realized in two different laboratories for the purpose...

An Experimental Investigation of Sootshell Formation in Microgravity Droplet Combustion

November 1, 2004

Author(s)

Samuel L. Manzello, A Yozgatligil, M Y. Choi

Spherically-symmetric droplet combustion experiments were performed in an effort to better understand the mechanism leading to sootshell formation. The...

Scanning Electron Microscopy Imaging of Hydraulic Cement Microstructure

November 1, 2004

Author(s)

Paul E. Stutzman

Microscopy of portland cement clinker and cementitous materials dates to the first petrographic microscope in the late 19th century. The development of the...

Photoassociative Formation of Ultracold Polar KRb Molecules

November 1, 2004

Author(s)

Svetlana A. Kotochigova, Eite Tiesinga, Paul S. Julienne

We investigate the effectiveness of creating polar ground state KRb molecules by two-color photoassociative spectroscopy. In this process the molecules are...

Measurement of Particle Size Distribution in Portland Cement Powder: Analysis of ASTM Round-Robin Studies

November 1, 2004

Author(s)

Chiara F. Ferraris, Vincent A. Hackley, A Aviles

A distribution of particle sizes or particle size distribution (PSD) is a fundamental characteristic of cement powder. Accurate PSDs are required in...

Thermodynamics of Enzyme-catalyzed Reactions A Database for Quantitative Biochemistry

November 1, 2004

Author(s)

Robert N. Goldberg, Yadu D. Tewari, Talapady N. Bhat

Biotransformation and Persistent Metabolites of Organohalogen Contaminants in Model Marine and Aquatic Wildlife and Populations

November 1, 2004

Author(s)

H M. Stapleton, R J. Letcher, M. McKinney, J. Verreault, G. Gabrielsen, F. Scipione, S G. Chu, K. Valters

Measurement of Water by Oven Evaporation Using a Novel Oven Design. 1. Water in Water-Saturated 1-Octanol, Coal, Cement, and Refined Oils

November 1, 2004

Author(s)

John R. Sieber, K Vaishnav, S A. Margolis

Development of SRMs for the Analysis of Dietary Supplements

November 1, 2004

Author(s)

Lane C. Sander, Katherine E. Sharpless, Stephen A. Wise, A. NguyenPho, R. C. Lyon, G. C. Ziobro, J. M. Betz

Development and Evaluation of a Reference Measurement Procedure for the Determination of Total 3,3 ',5-Trilodothyronine in Human Serum Using Isotope-Dilution Liquid Chromatography-Tandem Mass Spectrometry

November 1, 2004

Author(s)

Susan S. Tai, David M. Bunk, Edward White, Michael J. Welch

Persistent Organic Pollutants in Rough-Toothed Dolphins (Steno bredanensis) Sampled During an Unusual Mass Stranding Event

November 1, 2004

Author(s)

John R. Kucklick, W D. Struntz, Michele M. Schantz, Paul R. Becker, W E. McFee, M K. Stolen

Measurement of Water by Oven Evaporation Using a Novel Oven Design. 2. Water in Motor Oils and Motor Oil Additives

November 1, 2004

Author(s)

John R. Sieber, K Vaishnav, S A. Margolis

Standard Reference Materials to Support U.S. Regulations for Nutrients and Contaminants in Food and Dietary Supplements

November 1, 2004

Author(s)

Katherine E. Sharpless, Stephen A. Wise, Lane C. Sander, Willie E. May

Isolation and Characterization of Novel Marine-Derived Actinomycete Taxa Rich in Bioactive Metabolites

November 1, 2004

Author(s)

Jennifer M. Lynch, Morris J. Dworkin, N. A. Magarvey, V. Bernan, D. H. Sherman

Do We Need Radiochemical Separation in Activation Analysis?

November 1, 2004

Author(s)

Rolf L. Zeisler, J. Kucera

New Thermal Neutron Prompt Gamma-ray Activation Analysis Instrument at the National Institute of Standards and Technology Center for Neutron Research

November 1, 2004

Author(s)

Elizabeth A. Mackey, D L. Anderson, P J. Liposky, Richard M. Lindstrom, Huaiyu H. Chen-Mayer, George P. Lamaze

Analyses of Thin Films and Surfaces by Cold Neutron Depth Profiling

November 1, 2004

Author(s)

George P. Lamaze, Huaiyu H. Chen-Mayer, K K. Soni

Peak Compression and Resolution for Electrophoretic Separations in Diverging Microchannels

November 1, 2004

Author(s)

David J. Ross, C F. Ivory, Laurie E. Locascio, K E. Van Cott

We report the results of experiments and simulations on electrokinetic flow in diverging microchannels (with cross sectional area that increases with distance...

Alterations in Water Structure Induced by Guanidinium and Sodium Ions

November 1, 2004

Author(s)

Raymond D. Mountain, D Thirumalai

Using molecular dynamics simulations we have probed the ion-induced changes in the water structure as the concentration of ion is varied. We consider two ions...

Nanotechnology with Atom Optics

November 1, 2004

Author(s)

Jabez McClelland, Shannon B. Hill, M Pichler, Robert Celotta

A brief review of atom optics is presented, with emphasis on how it can be applied in the field of nanotechnology. Two specific examples are discussed: laser...

Time and Frequency Dissemination: Advances in GPS Transfer Techniques

November 1, 2004

Author(s)

Thomas E. Parker, Demetrios Matsakis

Multiport Investigation of the Coupling of High-Impedance Probes

November 1, 2004

Author(s)

Dylan F. Williams, Pavel Kabos, Uwe Arz

We used an on-wafer measurement technique that combines two- and three-port frequency-domain mismatch corrections in order to characterize the influence of a...

In Situ Quasi-Elastic Scattering Characterization of Particle Size Effects on the Hydration of Tricalcium Silicate

November 1, 2004

Author(s)

Andrew Allen, J C. McLaughlin, Dan Neumann, R. A. Livingston

Maximum Pixel Spectrum: A New Tool For Detecting And Recovering Rare, Unanticipated Features From Spectrum Image Data Cubes

November 1, 2004

Author(s)

David S. Bright, Dale E. Newbury

A new software tool, the Maximum Pixel Spectrum detects rare events within a spectrum image data cube, such as that generated with electron-excited energy...

A New 'Wrinkle' in Nanometrology

November 1, 2004

Author(s)

Christopher M. Stafford

Nanotechnology promises to revolutionize a growing set of materials applications ranging from electronics to drug delivery to ballistic protection. However, the...

A Water Setting Tetracalcium Phosphate- Dicalcium Phosphate Dihydrate Cement

November 1, 2004

Author(s)

Elena F. Burguera, F Guitian, Laurence C. Chow

This paper reports the development of a calcium phosphate cement, comprising tetracalcium phosphate (TTCP) and dicalcium phosphate dihydrate (DCPD), that...

International Biometric Standards - Addressing the Customer Needs for Personal Authentication

November 1, 2004

Author(s)

Fernando L. Podio

Authentication is the provision of assurance of the claimed identity of an entity. Biometrics is defined as the automated recognition of individuals based on...

The Importance of Distributed Loading and Cantilever Angle in Piezo-Force Microscopy

November 1, 2004

Author(s)

B D. Huey, C Ramanujan, M Bobji, J Blendell, Grady S. White, R Szoszkiewicz, A Kulik

Piezo-force microscopy (PFM) is a variation of atomic force microscopy that is widely applied to investigate piezoelectric thin films at the nanometer scale...

In Situ Quasi-Elastic Scattering Characterization of Particle Size Effects on the Hydration of Tricalcium Silicate

November 1, 2004

Author(s)

Andrew J. Allen, J C. McLaughlin, Dan A. Neumann, Richard A. Livingston

The effects of different particle size distributions on the real-time hydration of tricalcium silicate cement paste have beenstudied in situ by quasi-elastic...

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