We find that the recently introduced model of self-trapping supported by a spatially growing strength of a repulsive nonlinearity gives rise to robust vortex-soliton tori, i.e., three-dimensional vortex solitons, with topological charges S≥1. The family with S=1 is completely stable, while the one with S=2 has alternating regions of stability and instability. The families are nearly exactly rep...

In spite of knowledge of conventional gating design casting defects such as shrinkage and gas porosities were found in front axle housing a critical automotive component. This component is generally made out of spheroidal graphite iron. A flawed gating system was found to be the reason for improper fluid flow and melt solidification which in turn produced casting defects. Optimization of the ga...

Interlocked molecules such as catenanes and rotaxanes, connected only via mechanical bonds have the ability to perform large-scale sliding and rotational movements, making them attractive components for the construction of artificial molecular machines and motors. We here demonstrate the realization of large, rigid rotaxane structures composed of DNA origami subunits. The structures can be easi...

This study examined the effect of seat position on handrim biomechanics. Thirteen experienced users propelled a wheelchair over a smooth level floor at a self-selected speed. Kinetic and temporal-distance data were collected with the use of an instrumented rim and a motion analysis system. A custom-designed axle was used to change the seat position. We used repeated measures analysis of varianc...

ABSTRACT At final parameters and characteristics of tyre can influence several basic elements – tyre composition, sort of used fillers, caoutchouc, reinforcing materials, their construction, choice of curing process, process of stabilization, storage conditions and so on. Nowadays by motorizing development are producers specialized for tire properties parameterize. This fact is necessary to sat...

Future-proof and highly available axle counting systems will be based on inductive wheel sensor systems with analogue output signals. Decades of experience for Frauscher Sensortechnik GmbH and over sixty thousand installations worldwide show that in the long term only this technology will be able to meet the challenges arising from the application environment. Increasing functional demands can ...

Rotaxanes can have topological isomers because of their mechanically interlocked axle and wheel components. Directional are formed when the rotaxanes constructed using an asymmetric a three-dimensional non-symmetrical wheel. In this work, directional [2]rotaxanes were synthesised lariat dibenzo-24-crown-8 ether as component sec-ammonium salt axle. Control over isomer ratio was achieved, demonst...

The paper presents an experience of using orthogonal hexahedral meshes for simulation different processes in machine-building products. Stress state the details suspension a cargo vehicle during movement on random road profile was simulated. Orthogonal lower levers and housing piston rod shock adsorber were used. Thermal elements drive axle its with constant speed calculated inner volume axle. ...