Results 11 to 20 of about 860,744 (306)

A [Mn 18 ] wheel-of-wheels

open access: yesChemical Communications, 2021
A [Mn 18 ] wheel of wheels is constructed from a simple reaction incorporating a triazatriol ligand.
Marco Coletta   +6 more
openaire   +4 more sources

A control volume-based finite element method for plane micropolar elasticity [PDF]

open access: yes, 2008
This paper describes the development of a numerical procedure for predicting deformations and stresses in a loaded two-dimensional membrane exhibiting micropolar or Cosserat constitutive behaviour. The procedure employs a conventional finite element (FE)
Wheel, M.A.
core   +1 more source

Modelling micropolar behaviour in cortical bone [PDF]

open access: yes, 2012
This presentation looks at modelling micropolar behaviour in cortical ...
Frame, Jamie Campbell   +2 more
core   +1 more source

A higher order control volume based finite element method to prodict the deformation of heterogeneous materials [PDF]

open access: yes, 2013
Materials with obvious internal structure can exhibit behaviour, under loading, that cannot be described by classical elasticity. It is therefore important to develop computational tools incorporating appropriate constitutive theories that can capture ...
A.J. Beveridge   +27 more
core   +1 more source

About Braking of Wheeled Vehicle Equipped with Automated Brake Control System

open access: yesНаука и техника, 2022
The paper proposes a method for determining a vehicle stopping distance based on a braking rate and a coefficient of using an adhesion force by an automated control system for regulating a braking force on the example of a multi-axle vehicle.
D. N. Leontiev   +7 more
doaj   +1 more source

Simulating Drug-Eluting Stents: Progress Made and the Way Forward [PDF]

open access: yes, 2013
Drug-eluting stents have significantly improved the treatment of coronary artery disease. Compared with their bare metal predecessors, they offer reduced rates of restenosis and thus represent the current gold standard in percutaneous coronary ...
Kennedy, Simon   +5 more
core   +2 more sources

Wheels on Wheels on Wheels—Surprising Symmetry

open access: yesMathematics Magazine, 1996
I was thinking of the curve traced by a particle on a wheel mounted on a wheel mounted on a wheel, each turning at a different rate. The first term represents the largest wheel, of radius 1, turning counter-clockwise at one radian per second. The second term represents a smaller wheel centered at the edge of the first, turning 7 times as fast.
openaire   +2 more sources

Wheels within wheels

open access: yesJournal of Combinatorial Theory, Series B, 1974
AbstractA simple means of representing the structure of all strongly connected directed graphs is developed and applied to a certain problem involving the construction of “toll booths”.
openaire   +2 more sources

Size effects on free vibration of heterogeneous beams

open access: yesMATEC Web of Conferences, 2018
In this paper the influence of microstructure on the free vibration of geometrically similar heterogeneous beams with free-free boundary conditions was numerically investigated by detailed finite element analysis (FEA) to identify and quantify any effect
Hassanati Bahman, Wheel Marcus
doaj   +1 more source

DEVELOPMENT ANALYSIS OF MAIN DEFECTS AND THEORETICAL FORECAST OF RAIL SERVICE LIFE IN THE CONDITIONS OF LUBRICATION

open access: yesNauka ta progres transportu, 2020
Purpose. The study is aimed at identifying the patterns of the load influence on the rail and the parameters of the two-layer lubrication on the development of the main rail defects, namely, lateral wear in the curved track sections. Methodology.
S. V. Voronin   +4 more
doaj   +1 more source

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