16,543 research outputs found
globalbioticinteractions/barnes: initial release
No full text<p>Dataset extracted from Barnes 2008</p>
r-barnes/richdem: Zenodo DOI Release
No full text<p>RichDEM is a set of digital elevation model (DEM) hydrologic analysis tools. RichDEM uses parallel processing and state of the art algorithms to quickly process even very large DEMs.</p>
<p>RichDEM offers a variety of flow metrics, such as D8 and D∞. It can flood or breach depressions. It can calculate flow accumulation, slops, curvatures, &c.</p>
<p>RichDEM is available as a performant C++ library, a low-dependency Python package, and a set of command-line tools.</p>
Euchaetes gigantea Barnes & McDunnough 1910
No full text<i>Euchaetes gigantea</i> Barnes & McDunnough, 1910 <p> <i>Euchaetes gigantea</i> Barnes & McDunnough, 1910b: 209.</p> <p>TYPE LOCALITY. — USA, Arizona, Santa Catalina M[oun]t[ain]s.</p> <p>TYPE SPECIMEN. — Holotype female (USNM).</p> <p>REMARK</p> <p>No reference was found to document the occurrence of this taxon in Mexico, but the proximity to the border makes its occurrence in Mexico likely.</p>Published as part of <i>Laguerre, Michel, 2014, Catalogue of the Neotropical Arctiini Leach, [1815] (except Ctenuchina Kirby, 1837 and Euchromiina Butler, 1876) (Insecta, Lepidoptera, Erebidae, Arctiinae), pp. 137-533 in Zoosystema 36 (2)</i> on page 375, DOI: 10.5252/z2014n2a1, <a href="http://zenodo.org/record/5395344">http://zenodo.org/record/5395344</a>
globalbioticinteractions/barnes v1.1
No full text<p>Improvements</p>
<p>Update doi scheme from <a href="http://dx.doi.org">http://dx.doi.org</a> --> <a href="https://doi.org">https://doi.org</a> .</p>
mnhmp/Planets: Simon Barnes the First
No full text<p>This is the original Simon Barnes release</p>
Laimella tongyeongensis Barnes, Kim & Lee 2012
No full text<p> 10. <b> <i>Laimella tongyeongensis</i> Barnes, Kim & Lee 2012</b> </p> <p> (Barnes <i>et al</i>. 2012: 273–276, Fig. 3 a–d, 4 a–h; three males, one female and three juveniles, Tongyeong Bay, Korea, 49 m deep, mud).</p>Published as part of <i>Hong, Jung-Ho, Tchesunov, Alexei V. & Lee, Wonchoel, 2016, Revision of Cervonema Wieser, 1954 and Laimella Cobb, 1920 (Nematoda: Comesomatidae) with descriptions of two species from East Sea, Korea, pp. 333-357 in Zootaxa 4098 (2)</i> on page 348, DOI: 10.11646/zootaxa.4098.2.7, <a href="http://zenodo.org/record/256741">http://zenodo.org/record/256741</a>
A Barnes-Hut scheme for simulating fault slip
No full textTo account for natural spatial and temporal complexity, large-scale, long-duration calculations are required for simulations of seismicity in fault zones that host large earthquakes. Without advances in computational methods, the rate of progress in "earthquake simulator" models and associated earthquake forecasts is limited by the rates at which computer speed and storage increase. To explore improvements in computational efficiency we develop the first implementation of the Barnes-Hut algorithm (Barnes and Hut, 1986) to calculate elastic interactions in a fault model. The Barnes-Hut method is an efficient, numerical scheme that treats local forces exactly and distant forces approximately. The approach is illustrated in example simulations of non-linear fault strength in plane strain. Rudimentary error analysis indicates that efficient calculations, where execution time scales with number of grid points (<i>N</i>) as <i>N</i> log <i>N</i>, can be conducted routinely with errors on the order of 0.1%. We expect the Barnes-Hut method to be well suited for conducting initial exploration of parameter space for fault simulations with non-linear constitutive equations, and for efficient calculations of stress interaction in complex fault systems
Macrophthalmus (Chaenostoma) Stimpson 1858
No full text<i>Macrophthalmus</i> (<i>Chaenostoma)</i> Stimpson, 1858 <p>(Fig. 1A)</p> <p> Small, carapace breadth <15 mm; ocular peduncles short and stout, not projecting beyond lateral carapace margins, subequal in length to breadth of front or shorter; front broad, not constricted between bases of ocular peduncles, where its breadth is 20–30% the distance between external orbital angles; ischium of external maxilliped some 1.25 times length of merus; carapace with breadth <1.3 times length, with lateral margins parallel, with broad-based subrectangular anterolateral teeth, without conspicuous aggregations of granules into rows or clumps on branchial regions; central region of posterior border of epistome straight; males without stridulatory apparatus; fingers of male chela short with index straight or slightly downflexed, and with a differentiated tooth only on dactylus. Intertidal, but unusually for <i>Macrophthalmus</i>, mainly associated with rocky or stony habitats.</p> <p> Two species are included in <i>Chaenostoma</i> (= <i>Mopsocarcinus</i> Barnes, 1967): <i>M. boscii</i> Audouin, 1825 (type species) and <i>M. punctulatus</i> Miers, 1884. This subgenus was suggested by Barnes (1967) to approximate the form of the ancestral <i>Macrophthalmus</i>, but the molecular sequence analysis of Kitaura, Nishida & Wada (2006) places it as a highly derived form.</p>Published as part of <i>Barnes, R. S. K., 2010, A Review Of The Sentinel And Allied Crabs (Crustacea: Brachyura: Macrophthalmidae), With Particular Reference To The Genus Macrophthalmus, pp. 31-49 in Raffles Bulletin of Zoology 58 (1)</i> on page 37, DOI: <a href="http://zenodo.org/record/4508304">10.5281/zenodo.4508304</a>
Faulting and Extension Rate over the last 20,000 Years in the Offshore Whakatane Graben, New Zealand Continental Shelf.
No full textOblique rifting in the offshore Taupo Volcanic Zone, New Zealand, is expressed in widely distributed active normal faulting in the 20 km-wide Whakatane Graben. Active faults are identified along seafloor scarps and displacements of the post-last glacial transgressive ravinement surface (<20ka), using a network of seismic reflection data and multibeam bathymetry. The rifting involves basement blocks back-tilted by 12-16°, controlled by large NW-dipping faults with intersecting antithetic faults within the 3 km-thick sedimentary sequence. Faults along the graben border parallel the rift axis, while those in the centre are moderately oblique to it. We present a novel method to estimate the age of a post-glacial surface (7.5 to 20.5 ka), with consideration to spatially varying subsidence and uplift, and measure fault throw across >400 faults. We derive an extension rate at seismogenic depths (6-10 km) across the graben of 13 ± 6 mm/yr, by summing surface measurements, assuming an average crustal fault dip of 45±15º, and correcting for the discrepancies between surface and deep crustal extension estimates. Structural and kinematic data implies an extension direction 20º oblique to the rift axis, resulting in up to 4.6 ± 2.1 mm/yr of dextral motion parallel to the rift axis. The strike-slip motion is accommodated by dip-slip displacements on oblique faults in the centre of the graben, and oblique-slip faulting along the rift margins. Pure dip-slip in the graben centre represents >50% of the total slip, with the Rangitaiki Fault accommodating 25% of the total extension in the graben
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