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Displaying 45551 - 45575 of 143816

Toxic effects and uptake of fullerenes spiked to sediments by Lumbriculus variegatus

July 13, 2011
Author(s)
Jussi Parkinen, Elijah Petersen, Matti Lepp?nen, Jarkko Akkanen
Effects of fullerene-spiked sediment on a benthic organism, Lumbriculus variegatus were investigated. Survival, growth, reproduction, and feeding rates were measured to assess in the extent to which fullerene-spiked natural sediment had acute or chronic

ACCELERATING STANDARDS AND MEASUREMENTS FOR THE SMART GRID

July 12, 2011
Author(s)
David A. Wollman
The National Institute of Standards and Technology (NIST) has efforts underway to accelerate the international development of interoperability standards to support the future modernized “Smart Grid” electric grid or energy delivery network characterized by

Dimensional Analysis of Through Silicon Vias Using the TSOM Method

July 12, 2011
Author(s)
Ravikiran Attota, Andrew Rudack
There is a great need for accurate, truly-3D metrology solutions that can be used for analysis of high aspect ratio features such as through-silicon-vias (TSVs). Through-focus scanning optical microscopy (TSOM) is an optical metrology method that provides

In Situ Gas Phase Measurements During Metal Alkylamide Atomic Layer Deposition

July 12, 2011
Author(s)
James E. Maslar, William A. Kimes, Brent A. Sperling
Metal alkylamide compounds, such as tetrakis(ethylmethylamido) hafnium (TEMAH), represent a technologically important class of metalorganic precursors for the deposition of metal oxides and metal nitrides via atomic layer deposition (ALD) or chemical vapor

Ferrocene as a Hydrophobic Templating Agent with Pyrogallol[4]arenes

July 11, 2011
Author(s)
Andrew V. Mossine, Harshita Kumari, Drew A. Fowler, Andrew K. Maerz, Steven R. Kline, Charles L. Barnes, Jerry L. Atwood
Cocrystallization of C-methylpyrogallol[4]arene (PgC1) and ferrocene in a methanolic solution led to the formation of two distinct crystalline products featuring two substantially different host-guest environs . The first of these features an exclusively

How to measure the size of tumors: The RECIST standard vs. volumetrics

July 11, 2011
Author(s)
Zachary H. Levine
Response Evaluation Criteria for Solid Tumours (RECIST) proposed 1D criteria for determining if 3D tumors are growing malignantly. Here, the error introduced is quantified using physical ellipsoids and fitting to clinical data on liver malignoma.

State Resolved THz Spectroscopy and Dynamics of Crystalline Peptide/Water Systems

July 11, 2011
Author(s)
Zeeshan Ahmed, Shin G. Chou, Karen M. Siegrist, David F. Plusquellic
State resolved THz studies of crystalline peptides and their hydrates have provided precise measures of the infrared active phonon modes that reflect motions on the longest possible length scales in these systems. The impact of co-crystallized water on the

USABILITY STANDARDS ACROSS THE DEVELOPMENT LIFECYCLE

July 11, 2011
Author(s)
Mary F. Theofanos, Brian C. Stanton
In 2005 the International Standards Organization published ISO/IEC 25062 “Common Industry Format (CIF) for Usability Test Reports”. This standard focused on documenting the results of usability testing in a consistent format in terms of user effectiveness

Rapid-Heating of Ionic Energetic Materials using a Micro-Differential Scanning Device

July 10, 2011
Author(s)
Nicholas W. Piekiel, Richard E. Cavicchi, Michael R. Zachariah
We employ a microcalorimeter device to study the thermal decomposition of organic energetic materials at very high heating rates. The compact size of this device enables rapid heating rates and sensitive detection of thermal loads from very small samples
Displaying 45551 - 45575 of 143816
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