Results 11 to 20 of about 261,861 (299)
Blindness to Curvature and Blindness to Illusory Curvature [PDF]
i-Perception, 2018 We compare two versions of two known phenomena, the Curvature blindness and the Kite mesh illusions, to highlight how similar manipulations lead to blindness to curvature and blindness to illusory curvature, respectively. The critical factor is a change in luminance polarity; this factor interferes with the computation of curvature along the contour ...
Bertamini, Marco, Kitaoka, Akiyoshi
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Reference shape of bodies with enhanced kinematics. Part II. Second gradient and microstructure
Вестник Самарского университета: Естественнонаучная серия, 2023 The work develops differential-geometric methods for modeling finite incompatible deformations of hyperelastic solids with enhanced kinematics. The response of such bodies, along with the standard kinematic field represented by the deformation gradient ...
Konstantin G. Koifman
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Reference shape of bodies with enhanced kinematics. Part I. Geometric methods
Вестник Самарского университета: Естественнонаучная серия, 2023 The work develops differential-geometric methods for modeling finite incompatible deformations of hyperelastic solids. They are based on the representation of a body as a smooth manifold, on which a metric and a non-Euclidean connection are synthesized ...
Konstantin G. Koifman
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Curvature operators and scalar curvature invariants [PDF]
Classical and Quantum Gravity, 2010 We continue the study of the question of when a pseudo-Riemannain manifold can be locally characterised by its scalar polynomial curvature invariants (constructed from the Riemann tensor and its covariant derivatives). We make further use of alignment theory and the bivector form of the Weyl operator in higher dimensions, and introduce the important ...
Hervik, Sigbjørn, Coley, Alan
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Analytical and Experimental Investigation of a Curved Piezoelectric Energy Harvester
Sensors, 2022 Piezoelectric energy harvesters have traditionally taken the form of base excited cantilevers. However, there is a growing body of research into the use of curved piezoelectric transducers for energy harvesting. The novel contribution of this paper is an
Talieh Pourashraf +2 more
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SSRN Electronic Journal, 2021 In a Mirrleesian environment, a monopsonist sets hourly wages and individuals choose how many hours to work. Labor market outcomes do not only depend on the level and slope of the income tax function, but also on its curvature. A more concave tax schedule raises the elasticity of labor supply, which boosts wages.
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Measurement and Analysis of High Frequency Assert Volatility Based on Functional Data Analysis
Mathematics, 2022 Information and communication technology have enabled the collection of high-frequency financial asset time series data. However, the high spatial and temporal resolution nature of these data makes it challenging to compare financial asset ...
Zhenjie Liang +5 more
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Quantitative Analysis of Seed Surface Tubercles in Silene Species
Plants, 2023 In the Caryophyllaceae, seed surfaces contain cell protrusions, of varying sizes and shapes, called tubercles. Tubercles have long been described in many species, but quantitative analyses with measurements of size and shape are lacking in the literature.
José Luis Rodríguez-Lorenzo +4 more
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Hollow Core Bragg Fiber-Based Sensor for Simultaneous Measurement of Curvature and Temperature
Sensors, 2021 In this paper, the hollow core Bragg fiber (HCBF)-based sensor based on anti-resonant reflecting optical waveguide (ARROW) model is proposed and experimentally demonstrated for simultaneous measurement of curvature and temperature by simply sandwiching a
Zongru Yang, Weihao Yuan, Changyuan Yu
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International Journal of Modern Physics D, 2002 The issues of quintessence and cosmic acceleration can be discussed in the framework of higher order theories of gravity. We can define effective pressure and energy density directly connected to the Ricci scalar of curvature of a generic fourth order theory and then ask for the conditions to get an accelerated expansion.
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