Construction of spherical non-circular wheels formed by symmetrical arcs of loxodrome
Eastern-European Journal of Enterprise Technologies, 2023 Bevel gears are used to transmit torque between intersecting axes. They demonstrate high reliability and durability of work, as well as a constant gear ratio. The disadvantage of such a transmission is the mutual sliding of the surfaces of the teeth of the gears, which leads to the emergence of friction forces and wear of their working surfaces.
Tetiana Kresan +6 more
semanticscholar +5 more sources
Three dimensional visualization and fractal analysis of mosaic patches in rat chimeras: cell assortment in liver, adrenal cortex and cornea. [PDF]
PLoS One, 2012 The production of organ parenchyma in a rapid and reproducible manner is critical to normal development. In chimeras produced by the combination of genetically distinguishable tissues, mosaic patterns of cells derived from the combined genotypes can be ...
Iannaccone S +5 more
europepmc +3 more sources
Spherical Fourier Neural Operators: Learning Stable Dynamics on the Sphere [PDF]
International Conference on Machine Learning, 2023 Fourier Neural Operators (FNOs) have proven to be an efficient and effective method for resolution-independent operator learning in a broad variety of application areas across scientific machine learning.
B. Bonev +6 more
semanticscholar +1 more source
Spherical Transformer for LiDAR-Based 3D Recognition [PDF]
Computer Vision and Pattern Recognition, 2023 LiDAR-based 3D point cloud recognition has benefited various applications. Without specially considering the LiDAR point distribution, most current methods suffer from information disconnection and limited receptive field, especially for the sparse ...
Xin Lai +4 more
semanticscholar +1 more source
PhySG: Inverse Rendering with Spherical Gaussians for Physics-based Material Editing and Relighting [PDF]
Computer Vision and Pattern Recognition, 2021 We present PhySG, an end-to-end inverse rendering pipeline that includes a fully differentiable renderer, and can reconstruct geometry, materials, and illumination from scratch from a set of images.
Kai Zhang +4 more
semanticscholar +1 more source
Safety-enhanced UAV Path Planning with Spherical Vector-based Particle Swarm Optimization [PDF]
Applied Soft Computing, 2021 This paper presents a new algorithm named spherical vector-based particle swarm optimization (SPSO) to deal with the problem of path planning for unmanned aerial vehicles (UAVs) in complicated environments subjected to multiple threats.
Manh Duong Phung, Q. Ha
semanticscholar +1 more source
Constructing geometrical models of spherical analogs of the involute of a circle and cycloid
Eastern-European Journal of Enterprise Technologies, 2023 The common properties of images on a plane and a sphere are considered in the scientific works by scientists-designers of spherical mechanisms. This is due to the fact that the plane and the sphere share common geometric parameters.
A. Nesvidomin +9 more
semanticscholar +1 more source
Threading the spindle: a geometric study of chiral liquid crystal polymer microparticles [PDF]
, 2019 Polymeric particles are strong candidates for designing artificial materials capable of emulating the complex twisting-based functionality observed in biological systems.
Ansell, H. S. +4 more
core +2 more sources
Comparative analysis of the ellipsoid approximation with the sphere [PDF]
, 2023 The paper analyzes the approximation of the ellipsoid by the sphere. Earth is a space body with a mathematically irregular shape, so idealized smooth surfaces are used for calculations.
Bojović, Bogdan +4 more
core +1 more source
Shadows and photon spheres with spherical accretions in the four-dimensional Gauss–Bonnet black hole [PDF]
The European Physical Journal C, 2020 We investigate the shadows and photon spheres of the four-dimensional Gauss–Bonnet black hole with the static and infalling spherical accretions. We show that, for both cases, there always exist shadows and photon spheres.
Xiao-Xiong Zeng +2 more
semanticscholar +1 more source