Pulse transmission system for measuring wave propagation in soils
Article Abstract:
A pulse transmission system was successfully employed in the concurrent measurement of P- and S-wave velocities in triaxial soils. The two P-waves measured by the system were consistent with the theoretical findings reported in previous studies. The approach, however, failed to emphasize measurement accuracy and the detailed characteristics of the frequency-selective filters used.
Publication Name: Journal of Geotechnical and Geoenvironmental Engineering
Subject: Science and technology
ISSN: 1090-0241
Year: 1997
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Quantum chemistry without wave functions: Two-electron reduced density matrices
Article Abstract:
A variational two-electron reduced density matrix (2-RDM) procedure, using first-order semidefinite programming, is presented to capture multireference correlation effects important at nonequilibrium geometries. This method emerged from research on a nonvariational calculation of the 2-RDM by the contracted Schrodinger equation.
Publication Name: Accounts of Chemical Research
Subject: Science and technology
ISSN: 0001-4842
Year: 2006
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Wave power goes commercial
Article Abstract:
The Island of Islay, Scotland, has begun to operate the world's first commercial wave power station using a device called the Land-Installed Marine-Powered Energy Transformer (Limpet). It is expected that enough power will be generated for around 400 homes. The article details the construction of Limpet and how it operates.
Publication Name: Environmental Science & Technology
Subject: Science and technology
ISSN: 0013-936X
Year: 2001
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