Results 241 to 250 of about 106,911 (302)

Emergent scattering regimes in disordered metasurfaces near critical packing. [PDF]

Nat Commun
Chen M, Agreda A, Wu T, Carcenac F, Vynck K, Lalanne P.   +5 more
europepmc   +1 more source

Charge transfer at the plasmon-molecule interfaces controls the collective chiroptical responses. [PDF]

Nat Commun
Jiang Z, Zhou Y, Zhou Z, Li H, Yang Y, Song J, Jia M, Hu H, Cai Y, Govorov A, Zhang W, Yang J, Lan X.   +12 more
europepmc   +1 more source

Asymmetries-induced nonlinear dynamic behaviors enable versatile modulation strategy for insect-scale robotics. [PDF]

Sci Adv
Gong Y, Guo Z, Zhang K, Zhao D, Lan T, Lu C, Ma Y, Zhong J.   +7 more
europepmc   +1 more source

Robust multiresonant nonlocal metasurfaces by rational design. [PDF]

Nanophotonics
Malek SC, Doiron CF, Brener I, Cerjan A.
europepmc   +1 more source

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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

Redesigned Air-Column Resonance Apparatus

The Physics Teacher, 2003
This paper describes a redesigned air-column resonance apparatus1 that offers several advantages over the traditional one.2 It does away with water or the long rod to vary the length of the air column. Instead a specially designed piston is moved inside a plastic or glass tube by external magnets to vary the length of the air column.
Gurbax Singh, Erlend H. Graf
openaire   +1 more source

Parametric resonance of viscoelastic columns

International Journal of Solids and Structures, 1969
Abstract The results of an analytical and experimental investigation of the effect of viscoelastic material behavior on the instability regions of a column subjected to a periodic axial load P 0 + P 1 cos ωt are presented. The complex modulus representation is used for the material.
K.K. Stevens, R.M. Evan-Iwanowski
openaire   +1 more source

Evaluation of Resonant Column Test Devices

Journal of the Geotechnical Engineering Division, 1976
Resonant column tests were performed by six participants in a program designed to evaluate results from various devices. The participants were Drnevich, Hardin, Woods, Shannon & Wilson, Inc., the U.S. Army Engineer Cold Regions Research and Engineering Laboratory, and the U.S. Army Engineer Waterways Experiment Station.
George R. Skoglund, Robert W. Cunny, William F. Marcuson   +2 more
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Resonant Column Testing of Agricultural Soils

Transactions of the ASAE, 1988
ABSTRACT REMOLDED cylindrical specimens and minimally-disturbed cylindrical samples of three types of agricultural soils were tested in a torsional-type resonant column device. The soils were tested at confining stresses close to zero to simulate field conditions.
null A. R. Womac, null F. D. Tompkins, null E. C. Drumm   +2 more
openaire   +1 more source

New Approach to Resonant Column Testing

Geotechnical Testing Journal, 2013
Abstract This paper describes a new type of torsional resonant column device that has a quasi-fixed base and free top. In this device, a relatively rigid torque transducer is placed between the bottom platen and the fixed chamber base. A large capacity torque motor excites the top platen.
Salim K. Werden, Vincent P. Drnevich, John R. Hall, Chafik Hankour, Carolyn T. Conlee, W. Allen Marr   +5 more
openaire   +1 more source