August 2009
Volume 41, Number 9
Materials that are rheologically complex can be measured efficiently using the rheometers described in an application note on vane rheometry. An article on a dynamic mechanical analyzer coupled with an accessory for DMA relative humidity (RH) rounds out the issue.
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Table of Contents
Saturday, August 01, 2009
David J. Moonay
Rheology is the study of the deformation of matter. A common definition is that rheology is the study of flow. Viscometry, in particular, is the measurement of viscosity or the resistance to flow. ...
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Saturday, August 01, 2009
Steven R. Aubuchon
Historically, dynamic mechanical analysis (DMA) measurements have focused on the analysis of materials as a function of an imposed temperature profile. However, most consumer products are subject to a...
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Saturday, August 01, 2009
Joe Boyd
Preparing samples for analysis is an extremely time-consuming task. In fact, sample preparation steps can easily take up more time in the laboratory than the actual analysis. With autosamplers on ...
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Saturday, August 01, 2009
Yanyin Yang, Robert H. Clifford, Gilbert Vial, Haruo Shimaoka
Nanotechnology is pervasive, as evidenced by the abundance of information found in the latest scientific journals. What is nanotechnology? According to the National Nanotechnology Initiative, “a ...
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Saturday, August 01, 2009
Tien T. Dao, Allan X. Ye, Gary Hutchison, Kaj Hedman
Routine viscosity measurements of materials are important in most industrial processes such as mixing and pumping, spraying and coating, extrusion, laydown, and leveling. Typically, a rotational ...
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Saturday, August 01, 2009
Arnold Breisblatt
One of the worst-case scenarios for a pharmaceutical laboratory is to have a government inspector close down the facility because it cannot provide regulatory compliance documentation, much less ...
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Saturday, August 01, 2009
Michele Schantz, Rolf Zeisler
The National Institute of Standards and Technology (NIST, Gaithersburg, MD) issued a new series of Standard Reference Materials® (SRMs) targeting the ever-increasing list of potentially toxic ...
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Thursday, August 20, 2009
David Coleman, Lynn Vanatta
"In almost all cases when dealing with a limit of detection or limit of determination, the primary purpose of determining that limit is to stay away from it.”
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