Results 281 to 290 of about 262,408 (319)
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Vibration of Beam Structures

1991
We treat the dynamics of beams in a manner similar to that for rods. The sequence of analysis followed is: derive the governing differential equations, use spectral analysis to obtain general solutions, obtain an exact matrix formulation, obtain an approximate matrix formulation.
openaire   +1 more source

Fault identification in beam structures

Journal of the Franklin Institute, 1992
A methodology based on the measurement of the natural frequencies of the structural system is developed for identification of the magnitude and location of the material defects and/or cracks. The numerical procedure is based on the matrix-transfer technique in which the dynamic characteristics of the system are related from one end to the other end via
Choy, Fred K., Liang, Robert Y., Xu, P.
openaire   +2 more sources

Structural optimization using beam elements

AIAA Journal, 1988
Techniques for handling beam elements in structural optimization are investigated. The complexities of evaluating the geometrical properties of a section, stress recovery, and design-variable selection are successfully handled by the concept of an element library, use of equivalent stress, and separation of sensitivity variables and design variables ...
Yoshida, Noriaki   +1 more
openaire   +1 more source

Structured beams in laser refractography

Journal of Communications Technology and Electronics, 2009
The main types of structured laser beams obtained using diffractive optical elements are presented. A new information and measuring technique—the laser refractography based on the application of structured radiation—is proposed for the quantitative diagnostics of inhomogeneous media.
openaire   +1 more source

Beam Structures

2011
CARRERA, Erasmo   +2 more
openaire   +2 more sources

Spin Structure with Lepton Beams

2005
The next several years should see a significant increase in the amount of data. Precise semi-inclusive data is expected from HERMES. CEBAF 39 has an extensive program of measurements planned at large x and low Q 2. The new CERN proposal COMPASS 32 will extend the high Q 2 data and provide information on semi-inclusive charm production, that may shed ...
openaire   +2 more sources

New Radio Beam-Based Access to Unlicensed Spectrum: Design Challenges and Solutions

IEEE Communications Surveys and Tutorials, 2020
Sandra Lagén   +2 more
exaly  

On-chip electro-optic frequency shifters and beam splitters

Nature, 2021
Yaowen Hu, Mengjie Yu, Di Zhu
exaly  

Mapping the phases of quantum chromodynamics with beam energy scan

Physics Reports, 2020
Adam Bzdak, Volker Koch, Jinfeng Liao
exaly  

Spinal Extradural Metastasis: Review of Current Treatment Options

Ca-A Cancer Journal for Clinicians, 2008
Ronald H M A Bartels   +2 more
exaly  

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