Results 1 to 10 of about 378,871 (246)

In-Vitro Investigation of Fatigue and Fracture Behavior of Transmucosal versus Submerged Bone Level Implants Used in Fixed Prosthesis

open access: yesApplied Sciences, 2021
Background: The present in vitro study aimed to investigate the fatigue performance of different dental fixtures in two different emergence profiles. Biological failures are frequently reported because the problem canonly be solved by replacing a failing
Saverio Cosola   +5 more
doaj   +2 more sources

Chaotic Manifold Analysis of Four-Screw Extruders Based on Lagrangian Coherent Structures. [PDF]

open access: yesMaterials (Basel), 2018
The four-screw extruder (FSE) is a novel equipment for polymer processing. In this paper, from a new viewpoint of Lagrangian coherent structures (LCS), two-dimensional fluid transport and chaotic mixing characteristics within three kinds of novel ...
Zhu XZ, Tong Y, Hu YX.
europepmc   +2 more sources

The sub-Riemannian length spectrum for screw motions of constant pitch on flat and hyperbolic 3-manifolds

open access: yesGeometriae Dedicata, 2023
Let M be an oriented three-dimensional Riemannian manifold of constant sectional curvature k = 0,1,-1 and let SO(M) be its direct orthonormal frame bundle (direct refers to positive orientation), which may be thought of as the set of all positions of a small body in M.
M. Salvai
openaire   +5 more sources

Hyperbolic metamaterials: fusing artificial structures to natural 2D materials

open access: yesELight, 2022
Optical metamaterials have presented an innovative method of manipulating light. Hyperbolic metamaterials have an extremely high anisotropy with a hyperbolic dispersion relation.
Dasol Lee   +9 more
semanticscholar   +3 more sources

Hyperbolic Deep Learning in Computer Vision: A Survey [PDF]

open access: yesInternational Journal of Computer Vision, 2023
Deep representation learning is a ubiquitous part of modern computer vision. While Euclidean space has been the de facto standard manifold for learning visual representations, hyperbolic space has recently gained rapid traction for learning in computer ...
Pascal Mettes   +4 more
semanticscholar   +1 more source

HRCF: Enhancing Collaborative Filtering via Hyperbolic Geometric Regularization [PDF]

open access: yesThe Web Conference, 2022
In large-scale recommender systems, the user-item networks are generally scale-free or expand exponentially. For the representation of the user and item, the latent features (a.k.a, embeddings) depend on how well the embedding space matches the data ...
Menglin Yang   +4 more
semanticscholar   +1 more source

STABILITY PERFORMANCE AND WIND TUNNEL TEST OF STEEL HYPERBOLIC COOLING TOWER CONSIDERING SKINNED EFFECT

open access: yes, 2023
With the development of industry, cooling towers play a very important role in thermal power generation, and steel cooling towers are being used more widely.
Hui Ma   +3 more
semanticscholar   +1 more source

One-dimensional hyperbolic conservation laws: Past and future [PDF]

open access: yesJournal of Hyperbolic Differential Equations, 2023
This paper intends to provide a brief review of the current well-posedness theory for hyperbolic systems of conservation laws in one space dimension, also pointing out open problems and possible research directions.
Alberto Bressan
semanticscholar   +1 more source

Low-Dimensional Hyperbolic Knowledge Graph Embeddings [PDF]

open access: yesAnnual Meeting of the Association for Computational Linguistics, 2020
Knowledge graph (KG) embeddings learn low- dimensional representations of entities and relations to predict missing facts. KGs often exhibit hierarchical and logical patterns which must be preserved in the embedding space.
Ines Chami   +5 more
semanticscholar   +1 more source

Efficient Structural Design of a Prefab Concrete Connection by Using Artificial Neural Networks

open access: yesSustainability, 2020
In the built environment, one of the main concerns during the design stage is the selection of adequate structural materials and elements. A rational and sensible design of both materials and elements results not only in economic benefits and computing ...
Jorge D Navarro-Rubio   +2 more
semanticscholar   +1 more source

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