The Experts below are selected from a list of 261 Experts worldwide ranked by ideXlab platform
Dan M. Davis - One of the best experts on this subject based on the ideXlab platform.
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Mechanics of fore‐arc Slivers: Insights from simple analog models
Tectonics, 2010Co-Authors: Saad S.b. Haq, Dan M. DavisAbstract:[1] Convergent margins with oblique subduction commonly include a fore-arc sliver, a portion of the overlying plate bounded by the trench and a major strike-slip fault system. It has long been noted that relative plate motion near the deformation front, as indicated by earthquake focal mechanisms, is generally closer to margin-normal than would be expected from overall relative plate motion. This results from sliver motion as well as from shear within the fore arc. We carry out some simple calculations to determine how the rate of sliver motion should vary with plate convergence obliquity. We find that the results are related to rheology but that the measurement of sliver rates at natural fore arcs is unlikely to yield real insight into physical properties; even for very simple models; the system is too complicated and its relation to rheology is not unique. The proportion of oblique convergence taken up by sliver motion in simple tabletop experiments depends on the rate of slip and the smoothing of asperities. Similarities in taper and style of strain between frontal wedges forming with and without Slivers suggest that structural observations of exhumed accretionary wedges are unlikely to allow geologists to draw definitive conclusions about the degree of obliquity of relative plate motion at the time when the wedges were formed and in some cases not even whether or not a sliver plate was present at the time of deformation.
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mechanics of fore arc Slivers insights from simple analog models
Tectonics, 2010Co-Authors: Saad S.b. Haq, Dan M. DavisAbstract:[1] Convergent margins with oblique subduction commonly include a fore-arc sliver, a portion of the overlying plate bounded by the trench and a major strike-slip fault system. It has long been noted that relative plate motion near the deformation front, as indicated by earthquake focal mechanisms, is generally closer to margin-normal than would be expected from overall relative plate motion. This results from sliver motion as well as from shear within the fore arc. We carry out some simple calculations to determine how the rate of sliver motion should vary with plate convergence obliquity. We find that the results are related to rheology but that the measurement of sliver rates at natural fore arcs is unlikely to yield real insight into physical properties; even for very simple models; the system is too complicated and its relation to rheology is not unique. The proportion of oblique convergence taken up by sliver motion in simple tabletop experiments depends on the rate of slip and the smoothing of asperities. Similarities in taper and style of strain between frontal wedges forming with and without Slivers suggest that structural observations of exhumed accretionary wedges are unlikely to allow geologists to draw definitive conclusions about the degree of obliquity of relative plate motion at the time when the wedges were formed and in some cases not even whether or not a sliver plate was present at the time of deformation.
Alexey S. Koshelev - One of the best experts on this subject based on the ideXlab platform.
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neveu schwarz ghost Slivers
Physics Letters B, 2002Co-Authors: Ya I Arefeva, A. A. Giryavets, Alexey S. KoshelevAbstract:Abstract Neveu–Schwarz ghost Slivers in pictures zero and minus one are constructed. In particular, using algebraic methods β , γ ghost sliver in the −1 picture is obtained. The algebraic method consists in solving a projector equation in an algebra, where the multiplication is defined by a pure 3-string vertex without any insertions at the string midpoint. We show that this projector is a sliver in a twisted version of β , γ conformal theory. We also show that the product of the twisted b , c and β , γ ghost Slivers solves an equation that appears after a special rescaling of super VSFT.
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ns ghost Slivers
arXiv: High Energy Physics - Theory, 2002Co-Authors: Ya I Arefeva, A. A. Giryavets, Alexey S. KoshelevAbstract:Neveu-Schwarz ghost Slivers in pictures zero and minus one are constructed. In particular, using algebraic methods $\beta$, $\gamma$ ghost sliver in the -1 picture is obtained. The algebraic method consists in solving a projector equation in an algebra, where the multiplication is defined by a pure 3-string vertex without any insertions at the string midpoint. We show that this projector is a sliver in a twisted version of $\beta$, $\gamma$ conformal theory. We also show that the product of the twisted $b$, $c$ and $\beta$, $\gamma$ ghost Slivers solves an equation that appears after a special rescaling of super VSFT.
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Neveu–Schwarz ghost Slivers
Physics Letters B, 2002Co-Authors: I. Ya. Aref'eva, A. A. Giryavets, Alexey S. KoshelevAbstract:Abstract Neveu–Schwarz ghost Slivers in pictures zero and minus one are constructed. In particular, using algebraic methods β , γ ghost sliver in the −1 picture is obtained. The algebraic method consists in solving a projector equation in an algebra, where the multiplication is defined by a pure 3-string vertex without any insertions at the string midpoint. We show that this projector is a sliver in a twisted version of β , γ conformal theory. We also show that the product of the twisted b , c and β , γ ghost Slivers solves an equation that appears after a special rescaling of super VSFT.
Saad S.b. Haq - One of the best experts on this subject based on the ideXlab platform.
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Mechanics of fore‐arc Slivers: Insights from simple analog models
Tectonics, 2010Co-Authors: Saad S.b. Haq, Dan M. DavisAbstract:[1] Convergent margins with oblique subduction commonly include a fore-arc sliver, a portion of the overlying plate bounded by the trench and a major strike-slip fault system. It has long been noted that relative plate motion near the deformation front, as indicated by earthquake focal mechanisms, is generally closer to margin-normal than would be expected from overall relative plate motion. This results from sliver motion as well as from shear within the fore arc. We carry out some simple calculations to determine how the rate of sliver motion should vary with plate convergence obliquity. We find that the results are related to rheology but that the measurement of sliver rates at natural fore arcs is unlikely to yield real insight into physical properties; even for very simple models; the system is too complicated and its relation to rheology is not unique. The proportion of oblique convergence taken up by sliver motion in simple tabletop experiments depends on the rate of slip and the smoothing of asperities. Similarities in taper and style of strain between frontal wedges forming with and without Slivers suggest that structural observations of exhumed accretionary wedges are unlikely to allow geologists to draw definitive conclusions about the degree of obliquity of relative plate motion at the time when the wedges were formed and in some cases not even whether or not a sliver plate was present at the time of deformation.
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mechanics of fore arc Slivers insights from simple analog models
Tectonics, 2010Co-Authors: Saad S.b. Haq, Dan M. DavisAbstract:[1] Convergent margins with oblique subduction commonly include a fore-arc sliver, a portion of the overlying plate bounded by the trench and a major strike-slip fault system. It has long been noted that relative plate motion near the deformation front, as indicated by earthquake focal mechanisms, is generally closer to margin-normal than would be expected from overall relative plate motion. This results from sliver motion as well as from shear within the fore arc. We carry out some simple calculations to determine how the rate of sliver motion should vary with plate convergence obliquity. We find that the results are related to rheology but that the measurement of sliver rates at natural fore arcs is unlikely to yield real insight into physical properties; even for very simple models; the system is too complicated and its relation to rheology is not unique. The proportion of oblique convergence taken up by sliver motion in simple tabletop experiments depends on the rate of slip and the smoothing of asperities. Similarities in taper and style of strain between frontal wedges forming with and without Slivers suggest that structural observations of exhumed accretionary wedges are unlikely to allow geologists to draw definitive conclusions about the degree of obliquity of relative plate motion at the time when the wedges were formed and in some cases not even whether or not a sliver plate was present at the time of deformation.
Ibrahim M Bahtiyari - One of the best experts on this subject based on the ideXlab platform.
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ultrasonic bioscouring and ozone based bleaching of cotton Slivers and coloration of them with natural dye sources
Journal of Cleaner Production, 2018Co-Authors: Aysegul Erdem, Ibrahim M BahtiyariAbstract:Abstract Cotton fibers can be finished in different forms such as fiber, yarn, fabric, and etc. depending on the demanded final product. Absorbent cotton is one of these products. In this study it was aimed to introduce an alternative environmentally friendly method for the finishing of cotton Slivers which will be useful in production of absorbent cotton. For this aim, cotton Slivers were bioscoured with the help of pectinase enzyme in different concentrations for different durations. Meanwhile the effect of ultrasound has been tested too. Then the bioscoured samples were dyed with two different natural dye sources to obtain naturally colored cotton Slivers or ozonated to obtain white cotton Slivers. As a summary, it was found that ultrasonic bioscouring can be a way for increasing the hydrophilicity of cotton Slivers. Moreover, for naturally dyed and for white cotton Slivers, pomegranate peel/green tea based dyeings and ozone application were developed as production methods respectively.
Xinwei Shi - One of the best experts on this subject based on the ideXlab platform.
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Quality Tetrahedral Mesh Generation for Macromolecules
Lecture Notes in Computer Science, 2006Co-Authors: Ho-lun Cheng, Xinwei ShiAbstract:This paper presents an algorithm to generate quality tetrahedral meshes for the volumes bounded by the molecular skin model defined by Edelsbrunner. The algorithm applies the Delaunay refinement to the tetrahedral meshes bounded by quality surface meshes. In particular, we iteratively insert the circumcenters of bad shape tetrahedra with a priority parameterized by its distance from the surface. We achieve a bounded radius-edge ratio for the tetrahedral mesh after the refinement. Finally, we apply the sliver exudation algorithm to remove 'Slivers'. The algorithm terminates with guarantees on the tetrahedral quality and an accurate approximation of the original surface boundary.
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ISAAC - Quality tetrahedral mesh generation for macromolecules
Algorithms and Computation, 2006Co-Authors: Ho-lun Cheng, Xinwei ShiAbstract:This paper presents an algorithm to generate quality tetrahedral meshes for the volumes bounded by the molecular skin model defined by Edelsbrunner. The algorithm applies the Delaunay refinement to the tetrahedral meshes bounded by quality surface meshes. In particular, we iteratively insert the circumcenters of bad shape tetrahedra with a priority parameterized by its distance from the surface. We achieve a bounded radius-edge ratio for the tetrahedral mesh after the refinement. Finally, we apply the sliver exudation algorithm to remove ‘Slivers'. The algorithm terminates with guarantees on the tetrahedral quality and an accurate approximation of the original surface boundary.
