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Lacunar fractal photon sieves [PDF]
, 2007 We present a new family of diffractive lenses whose structure is based on the combination of two concepts: photon sieve and fractal zone plates with variable lacunarity. The focusing properties of different members of this family are examined.
Andersen +18 more
core +2 more sources
Evolving force balance during incipient subduction [PDF]
, 2004 Nearly half of all active subduction zones initiated during the Cenozoic. All subduction zones associated with active back arc extension have initiated since the Eocene, hinting that back arc extension may be intimately associated with an interval ...
Gurnis, Michael, Hall, Chad, Lavier, Luc
core +1 more source
High efficiency and scalable fabrication of fresnel zone plates using holographic femtosecond pulses
Nanophotonics, 2022 To meet the growing demand for photonic integration and device miniaturization, planar diffractive Fresnel zone plates (FZPs) are widely applied in integrated optical systems.
Wang Zhipeng +8 more
doaj +1 more source
Subducting slab ultra-slow velocity layer coincident with silent earthquakes in southern Mexico [PDF]
, 2009 Great earthquakes have repeatedly occurred on the plate interface in a few shallow-dipping subduction zones where the subducting and overriding plates are strongly locked.
Brudzinski, Michael R. +6 more
core +2 more sources
Effect of Cone-Plate Clarifier Structure Parameters on Flocculation Efficiency
Separations, 2021 In this study, a coal mine water flocculation system was established. A series of flocculation tests were carried out at different structural parameters (cylinder height, cone-plate insertion depth and cone-plate spacing) to better investigate the effect
Yulong Zhang +5 more
doaj +1 more source
Depth-varying rupture properties of subduction zone megathrust faults [PDF]
, 2012 Subduction zone plate boundary megathrust faults accommodate relative plate motions with spatially varying sliding behavior. The 2004 Sumatra-Andaman (M_w 9.2), 2010 Chile (Mw 8.8), and 2011 Tohoku (M_w 9.0) great earthquakes had similar depth variations
Ammon, Charles J. +7 more
core +1 more source
Sea Beam Survey of an Active Strike-Slip Fault: The San Clemente Fault in the California Continental Borderland [PDF]
, 1989 The San Clemente fault, located in the California Continental Borderland, is an active, northwest trending, right-lateral, wrench fault. Sea Beam data are used to map the major tectonic landforms associated with active submarine faulting in detail ...
de Moustier, Christian +4 more
core +2 more sources
Earth, Planets and Space, 2020 Plate-boundary earthquakes of magnitude 8 or greater along the Suruga–Nankai Trough subduction zone have repeated at intervals of 90–150 years, but with widely varying magnitudes and rupture areas.
Yukinobu Okamura, Masanobu Shishikura
doaj +1 more source
IEEE Photonics Journal, 2019 A new kind of optical element, i.e., composite spiral zone plate (CSZP), is proposed to generate a twin-vortex beam along the optic axis in this paper. The axial diffraction property of the CSZP is analyzed theoretically and experimentally.
Shubo Cheng +5 more
doaj +1 more source
Spatial regulation of bone morphogenetic proteins (BMPs) in postnatal articular and growth plate cartilage. [PDF]
PLoS ONE, 2017 Articular and growth plate cartilage both arise from condensations of mesenchymal cells, but ultimately develop important histological and functional differences. Each is composed of three layers-the superficial, mid and deep zones of articular cartilage
Presley Garrison +4 more
doaj +1 more source