Results 101 to 110 of about 82,503 (291)

Spheres over fields, their entire rational maps and applications

open access: yesPracì Mìžnarodnogo Geometričnogo Centru
The paper summarizes some results on algebraic geometry presence in the homotopy theory. For the homotopy group πm(Sn), denote by πalgm(Sn) its subset of homotopy classes represented by ℝ-entire rational maps Sm→Sn of spheres.
Marek Golasinski
doaj   +1 more source

Design of an independent vehicle suspension guide using the topological optimization method

open access: yesIzvestiya MGTU MAMI, 2017
Reducing the mass of automobile aggregates is an urgent task: fuel consumption and emissions to the atmosphere are reduced, material intensity, energy intensity, production costs are reduced, the ratio of the mass of the cargo to the curb weight of the vehicle is increased, etc.
D. S Vdovin, V. S Prokopov, D. M Ryabov
openaire   +1 more source

Pseudo-Anosov flows in toroidal manifolds

open access: yes, 2011
We first prove rigidity results for pseudo-Anosov flows in prototypes of toroidal 3-manifolds: we show that a pseudo-Anosov flow in a Seifert fibered manifold is up to finite covers topologically equivalent to a geodesic flow and we show that a pseudo ...
Anosov   +12 more
core   +3 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Objective ride quality evaluation of a multi-link torsion axle for battery electric vehicles

open access: yesAutomotive and Engine Technology
In this work, the ride quality of the novel multi-link torsion axle (MLTA) was experimentally evaluated. The kinematic topology of this suspension concept is designed to maximise the coherent package space in the underbody of small- to medium-sized ...
Tobias Niessing, Xiangfan Fang
doaj   +1 more source

Lifting Dynamical Properties to Hyperspaces

open access: yesApplied General Topology, 2014
For a dynamical system (X,f), the passage of various dynamical properties such as transitivity, total transitivity, weakly mixing, mixing, topological exactness, topological conjugacy, to the hyperspace C(X) of X consisting of nonempty closed connected ...
Dania Masood, Pooja Singh
doaj   +1 more source

Arresting Microphase Separation Encodes Material Mechanics by Sculpting Microarchitectures and Local Polymer Enrichment

open access: yesAdvanced Materials, EarlyView.
Microarchitecture sculpting via phase separation programs hydrogel mechanics by creating globular, inverse globular, and spinodal structures. Spinodal architectures deliver superior toughness and energy dissipation, while ionic modulation through single polymer phase separation offers a simple, scalable route to tune mechanical properties ...
Castro Johnbosco   +9 more
wiley   +1 more source

Lipshitz matchbox manifolds [PDF]

open access: yes, 2014
A matchbox manifold is a connected, compact foliated space with totally disconnected transversals; or in other notation, a generalized lamination. It is said to be Lipschitz if there exists a metric on its transversals for which the holonomy maps are ...
Hurder, Steven
core  

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

open access: yesAdvanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel   +7 more
wiley   +1 more source

Tarantula: Design, Modeling, and Kinematic Identification of a Quadruped Wheeled Robot

open access: yesApplied Sciences, 2018
This paper firstly presents the design and modeling of a quadruped wheeled robot named Tarantula. It has four legs each having four degrees of freedom with a proximal end attached to the trunk and the wheels for locomotion connected at the distal end ...
Abdullah Aamir Hayat   +3 more
doaj   +1 more source

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