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301
Quadratic Killing tensors on symmetric spaces which are not generated by Killing vector fields
Published 2024-11-01“…Every Killing tensor field on the space of constant curvature and on the complex projective space can be decomposed into the sum of symmetric tensor products of Killing vector fields (equivalently, every polynomial in velocities integral of the geodesic flow is a polynomial in the linear integrals). …”
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302
Characterizations of Trivial Ricci Solitons
Published 2020-01-01“…First, on a complete shrinking Ricci soliton, we show that the scalar curvature satisfying a certain inequality gives a characterization of a trivial Ricci soliton. …”
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303
Technology and equipment of roll straightening of sheet metal
Published 2023-01-01“…The parabolic dependence of the residual curvature on the yield strength is noted. The obtained data were used in the design of the roll straightening complex and the technology of straightening sheet blanks of complex configuration.…”
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304
Losses and orbital part of the Poynting vector of air-core modes in hollow-core fibers
Published 2024-04-01“…We then demonstrated the impact of the “negative” curvature of the core-cladding boundary of a hollow-core fiber on the behavior of the orbital part of the Poynting vector of the air-core modes.…”
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305
Providing a model of consumer behavior in creating brand attachment with an emphasis on the packaging component of food industry companies
Published 2024-06-01“…It seems that the effect of sign and curvature on consumers' perception of superiority is more influenced by the texture and classification of the product. …”
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306
Robotic Pectoral Fin Thrust Vectoring Using Weighted Gait Combinations
Published 2012-01-01“…A method was devised to vector propulsion of a robotic pectoral fin by means of actively controlling fin surface curvature. Separate flapping fin gaits were designed to maximize thrust for each of three different thrust vectors: forward, reverse, and lift. …”
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307
Film Cooling Effectiveness Data for Simple Injection Geometries: A Collection of Three-Axis Plots
Published 1994-01-01“…By plotting data from several film cooling studies conducted at the University of Minnesota, the dominant roles played by density ratio, hole spacing, and surface curvature become apparent. It is also seen that a slot-plate prediction/correlation from two-dimensional film cooling studies makes an excellent standard of comparison for all film cooling studies, even though the more commonly encountered (two-axis) comparisons using standardized nondimensional parameters do not usually suggest this.…”
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308
Foliations by minimal surfaces and contact structures on certain closed 3-manifolds
Published 2003-01-01“…Suppose that F admits a basic transverse volume form μ and mean curvature one-form κ which is horizontally closed. …”
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309
Strichartz estimates for geophysical fluid equations using Fourier restriction theory
Published 2024-11-01“…Moreover, when the fluid is stratified, our approach yields sharp estimates, showing that the slicing method captures all the available curvature of the surfaces of interest.…”
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310
Mechanism of Ultrasonic Guided Wave Excitation and Sensing in Pressure Vessel Structures Under Boundary Condition Effects
Published 2025-01-01“…The two key mechanisms influencing GW propagation are stress-induced changes in material properties (acoustoelastic effect), which causes phase shifts, and geometric deformation (thickness and curvature variations), which impacts GW amplitude. …”
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311
A Review of Intraocular Pressure (IOP) and Axial Myopia
Published 2022-01-01“…Accommodation not only alters the curvature and shape of the lens but also involves contraction of the ciliary and extraocular muscles, which influences intraocular pressure (IOP). …”
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312
A finite element method for growth in biological development
Published 2007-01-01“…We describe finite element simulations of limb growth based on Stokes flow models witha nonzero divergence representing growth due to nutrients in the early stages of limb bud development.We introduce a ''tissue pressure'' whose spatial derivatives yield the growth velocity in the limband our explicit time advancing algorithm for such tissue flows is described in detail.The limb boundary is approached by spline functions to compute the curvature andthe unit outward normal vector. At each time step, a mixed-hybrid finite element problem is solved,where the condition that the velocity is strictly normal to the limb boundary is treatedby a Lagrange multiplier technique. …”
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313
Displacement Field Approximations for Force-Based Elements in Large Displacement Analyses
Published 2012-01-01“…The three fields, introduced in this review, are: curvature-based displacement interpolation (CBDI) used in matrix-based flexibility formulations, linear displacement approximation applied in state space, and higher-order displacement approximation utilized again in state space. …”
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314
A New Class of Contact Pseudo Framed Manifolds with Applications
Published 2021-01-01“…We also have established a link of CPF-hypersurfaces with curvature, affine, conformal collineations symmetries, and almost Ricci soliton manifolds, supported by three applications. …”
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315
Nonlinearity of Conductor Behavior in the Context of Loads on Transmission Towers
Published 2024-12-01“…The discussion identifies the source of differences in the approaches and assesses the impact of two primary factors: the curvature of the relationship between load and tension force, and the initial prestressing of the cable, which results in the displacement of the graph relative to the origin of the coordinate system. …”
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316
A Novel Adaptive Probabilistic Nonlinear Denoising Approach for Enhancing PET Data Sinogram
Published 2013-01-01“…We propose filtering the PET sinograms with a constraint curvature motion diffusion. The edge-stopping function is computed in terms of edge probability under the assumption of contamination by Poisson noise. …”
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317
Investigation of Pseudo-Ricci Symmetric Spacetimes in Gray’s Subspaces
Published 2021-01-01“…It is proved that PRSn spacetimes are Ricci flat in trivial, A, and B subspaces, whereas perfect fluid in subspaces I, I⊕A, and I⊕B, and have zero scalar curvature in subspace A⊕B. Finally, it is proved that pseudo-Ricci symmetric GRW spacetimes are vacuum, and as a consequence of this result, we address several corollaries.…”
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318
Nonlinear Seismic Response Analysis of Curved and Skewed Bridge System with Spherical Bearings
Published 2013-01-01“…Further, the bearing responses are different for the loading scenarios because of seismic effects caused by interactions between excitation direction and radius of curvature.…”
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319
Free torus actions and twisted suspensions
Published 2025-01-01“…As a corollary, we obtain infinitely many manifolds with Riemannian metrics of positive Ricci curvature and isometric torus actions.…”
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320
Decoupling design and kinematic analysis of rope driven flexible wheelchair manipulators
Published 2025-01-01“…The kinematic model of the flexible manipulator was established based on the constant curvature modeling method, and the kinematic analysis between the drive space, joint space, and operation space as well as the decoupling analysis between each flexible joint were carried out. …”
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