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Conference paperRood DH, Hall S, Guilderson TP, et al., 2010,
Challenges and opportunities in high-precision Be-10 measurements at CAMS
, 11th International Conference on Accelerator Mass Spectrometry, Publisher: ELSEVIER SCIENCE BV, Pages: 730-732, ISSN: 0168-583X- Author Web Link
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- Citations: 72
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Journal articleSchulte P, Alegret L, Arenillas I, et al., 2010,
The Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary
, SCIENCE, Vol: 327, Pages: 1214-1218, ISSN: 0036-8075- Cite
- Citations: 1087
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Journal articleHieronymus CF, Goes S, 2010,
Complex cratonic seismic structure from thermal models of the lithosphere: effects of variations in deep radiogenic heating
, GEOPHYSICAL JOURNAL INTERNATIONAL, Vol: 180, Pages: 999-1012, ISSN: 0956-540X- Author Web Link
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- Citations: 35
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Journal articleCapitanio FA, Morra G, Goes S, et al., 2010,
India-Asia convergence driven by the subduction of the Greater Indian continent
, NATURE GEOSCIENCE, Vol: 3, Pages: 136-139, ISSN: 1752-0894- Author Web Link
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- Citations: 196
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Journal articleMonroy R, Zdravkovic L, Ridley A, 2010,
Evolution of microstructure in compacted London Clay during wetting and loading
, GEOTECHNIQUE, Vol: 60, Pages: 105-119, ISSN: 0016-8505- Author Web Link
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- Citations: 171
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Journal articleTAGGART S, HAMPSON GJ, JACKSON MD, 2010,
High-resolution stratigraphic architecture and lithological heterogeneity within marginal aeolian reservoir analogues
, Sedimentology, ISSN: 0037-0746 -
Conference paperYan H, Liu J-G, 2010,
ENHANCED ROBUST PHASE CORRELATION BASED SUB-PIXEL FEATURE MATCHINIG FOR TARGET MOTION ESTIMATION
, 2010 ISPRS Technical Commission III Symposium on Photogrammetry Computer Vision and Image Analysis, Pages: 76-79This paper presents an enhanced robust phase correlation (ERPC) algorithm for sub-pixel feature matching and its application intarget motion estimation for aerial video surveillance. The ERPC can cope with very large motion measurement on the one hand andimprove the sub-pixel accuracy by entirely avoiding the ill-posed problem of 2D phase unwrapping in 2D fitting technique of phasecorrelation on the other. The key advantage of EPRC is its robustness and sub-pixel accuracy which are essential for precise targetspeed measurement. Furthermore, EPRC is solely applied to the certain parts (not to the whole scene) of a scene where the movingtargets are detected, which greatly improves robustness and computing speed of the EPRC based target motion estimation. Finally,we introduce our robust camera compensation and moving target detection scheme. With this simple scheme, we are able toefficiently estimate the motions of multiple targets at sub-pixel accuracy.
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Journal articleAmos CB, Kelson KI, Rood DH, et al., 2010,
Late quaternary slip rate on the Kern Canyon fault at Soda Spring, Tulare County, California
, Lithosphere, Vol: 2, Pages: 411-417, ISSN: 1941-8264The Kern Canyon fault represents a major tectonic and physiographic boundary in the southern Sierra Nevada of east-central California. Previous investigations of the Kern Canyon fault underscore its importance as a Late Cretaceous and Neogene shear zone in the tectonic development of the southern Sierra Nevada. Study of the late Quaternary history of activity, however, has been confounded by the remote nature of the Kern Canyon fault and deep along-strike exhumation within the northern Kern River drainage, driven by focused fl uvial and glacial erosion. Recent acquisition of airborne lidar (light detection and ranging) topography along the ~140 km length of the Kern Canyon fault provides a comprehensive view of the active surface trace. High-resolution, lidar-derived digital elevation models (DEMs) for the northern Kern Canyon fault enable identifi cation of previously unrecognized offsets of late Quaternary moraines near Soda Spring (36.345°N, 118.408°W). Predominately north-striking fault scarps developed on the Soda Spring moraines display west-side-up displacement and lack a signifi cant sense of strike-slip separation, consistent with detailed mapping and trenching along the entire Kern Canyon fault. Scarp-normal topographic profi ling derived from the lidar DEMs suggests normal displacement of at least 2.8 +0.6/-0.5 m of the Tioga terminal moraine crest. Cosmogenic <sup>10</sup> Be exposure dating of Tioga moraine boulders yields a tight age cluster centered around 18.1 ± 0.5 ka (n = 6), indicating a minimum normal-sense fault slip rate of ~0.1-0.2 mm/yr over this period. Taken together, these results provide the fi rst clear documentation of late Quaternary activity on the Kern Canyon fault and highlight its role in accommodating internal deformation of the southern Sierra Nevada. © 2010 Geological Society of America.
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Journal articleWeller H, Ringler T, Piggott M, et al., 2010,
CHALLENGES FACING ADAPTIVE MESH MODELING OF THE ATMOSPHERE AND OCEAN
, BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, Vol: 91, Pages: 105-+, ISSN: 0003-0007- Author Web Link
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- Citations: 22
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Conference paperKumar M, Stafford PJ, Elghazouli AY, 2010,
Seismic response assessment of multi-storey steel frames designed to Eurocode 8
, 14th European Conference on Earthquake Engineering -
Conference paperSgobba S, Stafford PJ, Marano GC, 2010,
A scenario-compatible evolutionary model for the stochastic simulation of earthquake ground-motions
, 14th European Conference on Earthquake Engineering -
Conference paperModica A, Stafford PJ, Bommer JJ, et al., 2010,
Estimates of demand in loss estimation made through the use of vectors of intensity measures
, SECED - Society for Earthquake and Civil Engineering Dynamics, Young Engineers Conference -
Conference paperStafford PJ, Tsingopoulou E, Karimi I, et al., 2010,
A seismic hazard module for earthquake loss modelling in Tunisia
, EGU General Assembly 2010 - Geophysical Research Abstracts, Publisher: EGU -
Conference paperModica AM, Stafford PJ, Crowley H, 2010,
Vector-valued seismic demand analysis within earthquake risk assessment
, EGU General Assembly 2010 - Geophysical Research Abstracts -
Conference paperHenrys SA, Sutherland R, Seward A, et al., 2010,
The 2009-2010 SAHKE Experiment: Acquisition and preliminary results across the interseismically locked southern Hikurangi margin, New Zealand
, American Geophysical Union Fall Meeting -
Conference paperBarker DH, Wallace LM, Bell RE, et al., 2010,
Drilling at the northern Hikurangi subduction margin, New Zealand: The key to unlock the secrets of slip slip events
, American Geophysical Union Fall Meeting -
Journal articleMathias SA, Tsang C-F, Van Reeuwijk M, 2010,
Investigation of hydromechanical processes during cyclic extraction recovery testing of a deformable rock fracture
, INT J ROCK MECH MINING SCI -
Conference paperTaborda D, Zdravkovic L, Kontoe S, et al., 2010,
Alternative formulations for cyclic nonlinear models: parametric study and comparative analyses
, 7th European Conference on Numerical Methods in Geotechnical Engineering, Pages: 423-428The utilisation of cyclic nonlinear elastic models presents numerous advantages when analysingsimple dynamic problems, such as one-dimensional site response. This class of models requires a small numberof parameters to be determined and can efficiently reproduce the strain dependency of the secant shear stiffnessand hysteretic damping. However, it has been frequently noted that, for medium to large deformation levels, thepredicted damping ratio can be significantly larger than the values evaluated for most soils through laboratorytesting. To minimise the effects of this overestimation on the overall response of the system, which may lead tonon conservative results, different formulations have been proposed. In this paper, two alternative expressionsfor the stress-strain behaviour of soils – hyperbolic and logarithmic – are presented and their ability to reproducewell-established empirical stiffness degradation and damping ratio curves is assessed. Finally, the results of a setof dynamic finite element analyses of a one-dimensional wave propagation problem are presented to illustratethe impact of the different formulations on the engineering behaviour of soil deposits.
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Conference paperPapaspiliou M, Kontoe S, Bommer J, 2010,
Site Response Analysis Incorporated in Probabilistic Seismic Hazard Assessments
, 9th US National and 10th Canadian Conference on Earthquake Engineering, Publisher: EERI -
Journal articleGarcia X, Pavlidis D, Gorman GJ, et al., 2010,
A two-phase adaptive finite element method for solid–fluidcoupling in complex geometries
, International Journal for Numerical Methods in FluidsIn this paper we present a method to solve the Navier–Stokes equations in complex geometries, suchas porous sands, using a finite-element solver but without the complexity of meshing the porous space.The method is based on treating the solid boundaries as a second fluid and solving a set of equationssimilar to those used for multi-fluid flow. When combined with anisotropic mesh adaptivity, it is possibleto resolve complex geometries starting with an arbitrary coarse mesh. The approach is validated bycomparing simulation results with available data in three test cases. In the first we simulate the flow pasta cylinder. The second test case compares the pressure drop in flow through random packs of sphereswith the Ergun equation. In the last case simulation results are compared with experimental data on theflow past a simplified vehicle model (Ahmed body) at high Reynolds number using large-eddy simulation(LES). Results are in good agreement with all three reference models.
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