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Journals

Injectable and Macroporous Calcium Phosphate Cement Scaffold

Author(s)
Hockin D. Xu, Michael Weir, Elena F. Burguera, A M. Fraser
Calcium phosphate cement (CPC) can be molded and self-harden in vivo to form resorbable hydroxyapatite with excellent osteoconductivity. The objective of this...

Piezoelectric Trace Vapor Calibrator

Author(s)
R M. Verkouteren, John G. Gillen, David Taylor
The design and performance of a vapor generator for calibration and testing of trace chemical sensors are described. The device utilizes piezoelectric nozzles...

Minimum-phase calibration of sampling oscilloscopes

Author(s)
Andrew Dienstfrey, Paul D. Hale, Darryl A. Keenan, Tracy S. Clement, Dylan Williams
We describe an algorithm for determining the minimum phase of a linear, time-invariant response function from its magnitude. The procedure is based on Kramers...

Calibration of Sampling Oscilloscopes With High-Speed Photodiodes

Author(s)
Tracy S. Clement, Paul D. Hale, Dylan Williams, C. M. Wang, Andrew Dienstfrey, Darryl A. Keenan
We calibrate the magnitude and phase response of equivalent-time sampling oscilloscopes to 110 GHz. We use a photodiode that has been calibrated with our...

R-22 Replacement Status (In Spanish)

Author(s)
J M. Calm, Piotr A. Domanski
Since its initial recognition in 1928 and commercialization in 1936, R-22 has been applied in systems ranging from the smallest window air conditioners to the...

Addressing Security in the Early Stages of the Project Life Cycle

Author(s)
Benjamin Matthews, Jonathan Sylvie, Edd Gibson, Stephen R. Thomas, Robert E. Chapman, Sang-Hoon Lee
This article summarizes the first phase of a three-phase research effort to develop and deploy best practices for project security on industrial projects. It...
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