Results 231 to 240 of about 682,963 (292)

Metaheuristic-optimized bell-shaped slotted pentaband patch antenna for C, X, Ku, and K band applications. [PDF]

Sci Rep
Hannan M, Singh A, Bansal S, Shafi F, Singh O, Aknan M, Kouser K.   +6 more
europepmc   +1 more source

A Hybrid Metamaterial for Broadband, High-Performance Sound Absorption via Helmholtz Resonators Incorporating Porous Media. [PDF]

Materials (Basel)
Zhang Z, Liao Y, Xue R, Chen N, Huang Y, Li J.   +5 more
europepmc   +1 more source

Flexible High-Frequency Underwater Transducer Based on Piezoelectric Composites. [PDF]

Micromachines (Basel)
Zhou H, Zhong C, Qin L.
europepmc   +1 more source

Sagittal collimating diaboloid: a new grazing-incidence mirror surface for higher-throughput resonant inelastic X-ray scattering spectrometers. [PDF]

J Synchrotron Radiat
Dvorak J, Huang L, Idir M.
europepmc   +1 more source

Physics-based design and simulation of hollow-core anti-resonant fiber plasmonic sensors. [PDF]

Sci Rep
Al Mahfuz M, Al Mamun A, Habib MS.
europepmc   +1 more source

Applications of the New Approach to Resonant Column Testing [PDF]

Geotechnical Testing Journal, 2015
Abstract For more than 50 years, the resonant column test has been used to measure the shear modulus and damping of soils for shear strains ranging from 10−5 % to 0.5 %. For most soils, the test is non-destructive, and tests may be performed on the same specimen at multiple confining stresses simulating in situ conditions from near ...
Drnevich, Vincent P., Werden, Salim, Ashlock, Jeramy, Hall Jr., John R.   +3 more
openaire   +3 more sources

INNOVATIVE TRIAXIAL/RESONANT COLUMN EQUIPMENT [PDF]

, 2010
The present paper describes a new triaxial apparatus which allows the measurement of low strain stiffness by means of both bender elements and resonant column test. In a previous paper Squeglia et al.
LO PRESTI, DIEGO CARLO, SQUEGLIA, NUNZIANTE, Pallara O.   +2 more
core   +4 more sources

Calibration Exercise of Fixed-Free Resonant Column Apparatus

Lecture Notes in Civil Engineering, 2021
In this paper, the conventional calibration exercise for resonant column apparatus has been re-examined and some recommendations were provided to improve the accuracy of the test results.
Ninad Shinde, Jyant Kumar
exaly   +2 more sources

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Air column resonance demonstrations

The Journal of the Acoustical Society of America, 1998
An impedance head designed and constructed at the Physikalisch Technische Bundesanstalt in Braunschweig, Germany is used to illustrate the pattern of resonances in an air column confined to a cylindrical tube closed on one end and open on the other. This is compared to the pattern observed for a tube closed on both ends. The effect observed when adding
Uwe J. Hansen, Peter Hoekje
openaire   +1 more source