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Bulletin of the Seismological Society of America, ISSN 0037-1106, 10/2007, Volume 97, Issue 5, pp. 1486 - 1501
A method is described for quantitatively identifying ground motions containing strong velocity pulses, such as those caused by near-fault directivity. The... 
GEOCHEMISTRY & GEOPHYSICS | DIRECTIVITY
Journal Article
Physical Review Letters, ISSN 0031-9007, 06/2018, Volume 120, Issue 23, p. 237401
A superdirective cylindrical nanoantenna is demonstrated with a multilayered cylindrical metamaterial-inspired structure. Targeting specific scattering... 
Directivity | Scattering coefficients | Metamaterials
Journal Article
Geophysical Research Letters, ISSN 0094-8276, 10/2016, Volume 43, Issue 20, pp. 10,745 - 10,752
On 24 August 2016 a magnitude ML 6.0 occurred in the Central Apennines (Italy) between Amatrice and Norcia causing nearly 300 fatalities. The main shock... 
finite fault | kinematic inversion | rupture directivity | Earthquakes | Accelerometers | Shock | Motion | Propagation | Earthquake damage | Rupture | Patches (structures) | Waveforms | Dimensions | Velocity | Damage patterns | Heterogeneity | Historical account | Mathematical analysis | Seismology | Fatalities | Damage | Plate tectonics | Directivity | Geological faults | Slip | Grounds
Journal Article
IEEE Transactions on Antennas and Propagation, ISSN 0018-926X, 10/2019, Volume 67, Issue 10, pp. 6686 - 6691
A quantity called available directivity is defined for a radiating structure in terms of its characteristic mode content. It is shown how its maximum value can... 
Antenna measurements | Q-factor | radiating structures | Achievable directivity | available directivity | Antenna feeds | characteristic modes (CMs) | Eigenvalues and eigenfunctions | super-directivity | Antenna arrays | TELECOMMUNICATIONS | ANTENNA | ENGINEERING, ELECTRICAL & ELECTRONIC | WIDE-BAND | GAIN
Journal Article
Bulletin of the Seismological Society of America, ISSN 0037-1106, 10/2013, Volume 103, Issue 5, pp. 2591 - 2603
Near-fault pulse-like ground motions have long been known to be capable of inducing significant seismic damages to the building structures. Reasonable... 
GEOCHEMISTRY & GEOPHYSICS | SYSTEMS | DESIGN | DIRECTIVITY | SPECTRA
Journal Article
IEEE transactions on ultrasonics, ferroelectrics, and frequency control, ISSN 0885-3010, 11/2019, Volume 66, Issue 11, pp. 1723 - 1730
It is important to know hydrophone frequency-dependent effective sensitive element size in order to account for spatial averaging artifacts in acoustic output... 
hydrophone | membrane | directivity | acoustic output measurement
Journal Article
Bulletin of the Seismological Society of America, ISSN 0037-1106, 10/2014, Volume 104, Issue 5, pp. 2456 - 2466
Ground motions with strong velocity pulses are of special concern for structural engineers. We describe an efficient and quantitative method to identify such... 
RECORDS | GEOCHEMISTRY & GEOPHYSICS | NEAR-FAULT DIRECTIVITY | DEMAND | EARTHQUAKE
Journal Article
Geophysical Research Letters, ISSN 0094-8276, 05/2016, Volume 43, Issue 10, pp. 5000 - 5008
Journal Article
Earthquake Engineering & Structural Dynamics, ISSN 0098-8847, 12/2012, Volume 41, Issue 15, pp. 2351 - 2357
SUMMARY Near‐source pulse‐like records resulting from rupture's directivity have been found to depart from so‐called ordinary ground motions in terms of both... 
coefficient method | near‐fault | forward directivity | Near-fault | Forward directivity | Coefficient method | near-fault | DEMAND | ENGINEERING, CIVIL | ENGINEERING, GEOLOGICAL | DIRECTIVITY | SEISMIC HAZARD ANALYSIS
Journal Article
Journal of Applied Physics, ISSN 0021-8979, 08/2015, Volume 118, Issue 8, p. 83103
We report the simulation, fabrication, and experimental characterization of a multichannel metamaterial absorber with the aim to be used as a label-free... 
SENSITIVITY | FREQUENCIES | PHYSICS, APPLIED | DIRECTIVITY | FABRICATION | Thin films | Dielectric films | Research | Resonators
Journal Article
Nature Communications, ISSN 2041-1723, 2014, Volume 5, Issue 1, p. 3250
Directing light emission is key for many applications in photonics and biology. Optical antennas made from nanostructured plasmonic metals are suitable... 
RAMAN-SCATTERING | VAPOR GENERATION | NANOANTENNA | MULTIDISCIPLINARY SCIENCES | LIGHT | NANOPARTICLE | ANTENNAS | INTERFERENCE | DIRECTIVITY | RESONANCES | DELIVERY
Journal Article
Bulletin of the Seismological Society of America, ISSN 0037-1106, 10/2008, Volume 98, Issue 5, pp. 2262 - 2277
Near-source ground-motion records affected by directivity may show unusual features in the signal resulting in low-frequency cycle pulses in the velocity time... 
GEOCHEMISTRY & GEOPHYSICS | DIRECTIVITY-PULSE
Journal Article
Mechanical Systems and Signal Processing, ISSN 0888-3270, 01/2020, Volume 135, p. 106362
•Theoretical model built for characterizing interaction noise of contra-rotating fan.•Aerodynamic interaction is modelled with clear physical explanation.•More... 
Contra-rotating fan | Modal directivity | Interaction noise characterization | Vold-Kalman filter | ORDER TRACKING | ENGINEERING, MECHANICAL | Directivity | Broadband | Acoustic noise | Control methods | Rotors | Stators | Kalman filters | Noise control | Rotation
Journal Article
IEEE Transactions on Antennas and Propagation, ISSN 0018-926X, 2/2020, pp. 1 - 1
To speed up the design process of antenna array, a new multibranch artificial neural network (ANN) modeling technique is proposed and applied to tackle the... 
inverse problem | Artificial neural network (ANN) | directivity estimations | antenna array
Journal Article
Journal of Applied Physics, ISSN 0021-8979, 09/2019, Volume 126, Issue 9
Thanks to their enhanced and confined optical near-fields, broadband subwavelengthresonators have the ability to enhance the spontaneous emission rate and... 
Directivity | Spontaneous emission | Decay rate | Broadband | Near fields | Dielectrics | Emitters
Journal Article
IEEE Transactions on Antennas and Propagation, ISSN 0018-926X, 1/2020, pp. 1 - 1
A low-loss multifeed antenna with controlled polarization and beam-steering is presented. A low-profile resonant cavity antenna is fed by multiple spherical... 
dielectric resonator | power combiner | superstrate antenna | polarization | directivity | mm-wave
Journal Article
IEEE Transactions on Antennas and Propagation, ISSN 0018-926X, 01/2016, Volume 64, Issue 1, pp. 300 - 305
Journal Article
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