Now showing items 1-10 of 19
2009 Powell River Project Research and Education Program Reports
(Powell River Project Research and Education Center, 2009)
Local improvements to reduced-order models using sensitivity analysis of the proper orthogonal decomposition
(Cambridge University Press, 2009-06)
The proper orthogonal decomposition (POD) is the prevailing method for basis generation in the model reduction of fluids. A serious limitation of this method, however, is that it is empirical. In other words, this basis ...
Large piezoresistivity phenomenon in SiCN-(La,Sr)MnO3 composites
(AIP Publishing, 2009-02-01)
We present the results on SiCN-(La,Sr)MnO3 (LSMO) composites correlating the observed large piezoresistance behavior with the microstructural features and defect chemistry. Scanning electron microscopy characterization ...
IAWA Center News, Fall 2009
(Virginia Tech, 2009)
This is the annual newsletter for the International Archive of Women in Architecture (IAWA).
Antibacterial efficacy of core-shell nanostructures encapsulating gentamicin against an in vivo intracellular Salmonella model
(Dove Medical Press, 2009-01-01)
Pluronic based core-shell nanostructures encapsulating gentamicin were designed in this study. Block copolymers of (PAA(+/-)Na-b-(PEO-b-PPO-b-PEO)-b-PAA(+/-)Na) were blended with PAA(-) Na(+) and complexed with the ...
IAWA Archivist’s Report, 2008-2009
(Virginia Tech, 2009)
The IAWA was established in 1985 as a collaborative project between the College of Architecture and Urban Studies and the University Libraries at Virginia Tech. It is overseen by a board of advisors that includes architects, ...
Inexact Kleinman-Newton method for Riccati equations
(Siam Publications, 2009-03)
In this paper we consider the numerical solution of the algebraic Riccati equation using Newton's method. We propose an inexact variant which allows one control the number of the inner iterates used in an iterative solver ...
Piezoelectric and Magnetoelectric Thick Films for Fabricating Power Sources in Wireless Sensor Nodes
In this manuscript, we review the progress made in the synthesis of thick film-based piezoelectric and magnetoelectric structures for harvesting energy from mechanical vibrations and magnetic field. Piezoelectric compositions ...
A generalized rule for large piezoelectric response in perovskite oxide ceramics and its application for design of lead-free compositions
(American Institute of Physics, 2009-06-01)
We present a general rule for the perovskite oxide ceramics: "A large piezoelectric constant in ABO(3) perovskite ceramics can be obtained by tuning the weight ratio of A and B sites, WA/WB or WB/WA, to 3. Piezoelectric ...
In Sickness and In Health: Daily Stressors and Implications of Mild Cognitive Impairment for Care Partners
(Center for Gerontology and Dept. of Human Development Virginia Polytechnic Institute and State University, 2009-11)