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Displaying 1026 - 1050 of 1184

Relative Photon-to-Carrier Efficiencies of Alternating Nanolayers of Zinc Phthalocyanine and C60 Multilayer Films Assessed by Time-Resolved Terahertz Spectroscopy

October 1, 2009
Author(s)
Okan Esenturk, Joseph S. Melinger, Paul A. Lane, Edwin J. Heilweil
Alternating multi-layer and 1:1 blended films of zinc phthalocyanine (ZnPc)and buckminsterfullerene (C60) were investigated as model active layers for solar cells by Time-Resolved Terahertz Spectroscopy (TRTS). Relative photon-to-carrier efficiencies 2

MACS-a new high intensity cold neutron spectrometer at NIST

January 30, 2008
Author(s)
J A Rodriguez, Daniel Adler, P C Brand, Collin L. Broholm, Jeremy Cook, Christoph Brocker, R Hammond, Z Huang, P Hundertmark, J W Lynn, N C Maliszewskyj, J Moyer, J Orndorff, Donald J. Pierce, T D Pike, G Scharfstein, S A Smee, Rodrigo Vilaseca
… between 2.1 meV and 20 meV and energy resolution from 0.05 meV (Ei = 2.1 meV) to 3.0 meV (Ei = 20 meV). By using a …

Macrophage Response to Methacrylate Conversion Using a Gradient Approach

January 1, 2007
Author(s)
Nancy Lin, L A. Bailey, Matthew Becker, N. R. Washburn, Lori Henderson
… ranging from 43.0% to 61.2%. Substrates aged for 7 d had no significant differences in surface roughness or … of conversion. Leachables were detectable for at least 7 d using UV-absorption, but their global cytotoxicity was … (via annexin-V staining). No significant changes (p > 0.05) in tumor necrosis factor- and interleukin-1 gene …

Short Fundamental Equations of State for 20 Industrial Fluids

April 11, 2006
Author(s)
Eric W. Lemmon, Roland Span
In a preceding project, functional forms for "short" Helmholtz equations of state for typical non- and weakly polar fluids and for typical polar fluids were developed by simultaneous optimization. The coefficients of these equations of state were fitted to

Measurement of Second Order Susceptibilities of GaN and AlGaN

March 1, 2005
Author(s)
Norman Sanford, Albert Davydov, Denis V. Tsvetkov, Vladimir A. Dmitriev, Stacia Keller, Umesh Mishra, Steven P. DenBaars, S S. Park, J H. Han
Rotational Maker fringes, scaled with respect to χ 11 (2) of crystalline quartz, were used to determine the nonlinear optical coefficients χ 31 (2) and χ 33 (2) for samples of thin Al xGa 1-xN films and a bulk free-standing GaN platelet. The Al xGa 1-xN

Toward Traceability for At-line AFM Dimensional Metrology

July 1, 2003
Author(s)
Marylyn H. Bennett, Angela Guerry, Ronald G. Dixson, Michael T. Postek, Theodore V. Vorburger
The in-line and at-line measurement tools for critical dimension (CD) metrology in semiconductor manufacturing are technologically advanced instruments that exhibit excellent measurement repeatability - below one nanometer in some cases. Accuracy, however

Toward Traceability for At Line AFM Dimensional Metrology

January 1, 2002
Author(s)
Ronald G. Dixson, Angela Guerry, Marylyn H. Bennett, Theodore V. Vorburger, Michael T. Postek
The in-line and at-line measurement tools for critical dimension (CD) metrology in semiconductor manufacturing are technologically advanced instruments that exhibit excellent measurement repeatability--below 1 nm in some cases. Accuracy, however, is

The 1.27 m O 2 Continuum Absorption in O 2 /CO 2 Mixtures

December 1, 2001
Author(s)
Gerald T. Fraser, Walter J. Lafferty
The collision-induced, near-infrared O 2 continuum band overlapping the weak α 1δg - X 3ς- g, v=O -0, 1.27 m discrete band of O 2 has been investigated in O 2/CO 2 mixtures at room temperature (T=296 K) for total densities from 1.8 to 9.3 times that of an

Equation of State and Thermodynamic Properties of Pure Toluene and Dilute Aqueous Toluene Solutions in the Critical and Supercritical Regions

September 9, 2001
Author(s)
Sergei B. Kiselev, James F. Ely, Ilmutdin Abdulagatov, Emil Bazaev, Joe W. Magee
In this paper, we report new PVTx measurements for water + toluene binary mixtures at 11 near-critical and supercritical isotherms T = 623, 627, 629, 631, 633, 643, 645, 647, 649, 651, and 673 K and pressures up to 39 MPa at a fixed concentration of x = 0

Secondary Ferrite Number Reference Materials: Gage Calibration and Assignment of Values

February 1, 2000
Author(s)
Christopher N. McCowan, Thomas A. Siewert, D P. Vigliotti, C M. Wang
Ferrite Numbers (FN) were assigned to blocks of stainless steel that serve as secondary ferrite reference materials (RM 8480 and 8481), and these specimens were placed in our Reference Materials inventory. These reference materials are used to calibrate

Volume 4, The 1997 Prelaunch Radiometric Calibration of Sea WiFS

April 1, 1999
Author(s)
Bettye C. Johnson, Howard W. Yoon, Sally S. Bruce, Ping-Shine Shaw, E A. Thompson, S B. Hooker, R Eplee, R Barnes, S Maritorena, J Mueller
The Sea-viewing Side Field-of-view Sensor (SeaWiFS) was originally calibrated by the instrument's manufacturer, Santa Barbara Research Center (SBRC), in November 1993. In preparation for an August 1997 launch, the Sea WiFS Project and the National
Displaying 1026 - 1050 of 1184
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