We investigate properties of solar wind-like plasma turbulence using direct numerical simulations. analyze the transition from large, magnetohydrodynamic (MHD) scales to ion characteristic ones two-dimensional hybrid (fluid electrons, kinetic ions) To capture and quantify properties, we apply Karman-Howarth-Monin (KHM) equation for compressible Hall MHD (extended by considering pressure as a te...

As the most important working area of gear, teeth play the role of transmitting load and power. Tooth line and tooth profile are the two main characteristics of the tooth surface, which affect the shape of the tooth surface, tooth meshing characteristics and contact characteristics. Taking the elliptical cylinder gear pair in the reversing device of a new type of drum pumping unit as the resear...

Molecular dynamics simulations are performed to investigate heterogeneous dynamics in amorphous glassy materials under oscillatory shear strain. We consider three-dimensional binary Lennard-Jones mixture well below the glass transition temperature. The structural relaxation and dynamical heterogeneity are quantified by means of the self-overlap order parameter and the dynamic susceptibility. We...

We study the elasticity of thermalized spring networks under an applied bulk strain. The networks considered are subisostatic random-bond networks that, in the athermal limit, are known to have vanishing bulk and linear shear moduli at zero bulk strain. Above a bulk strain threshold, however, these networks become rigid, although surprisingly the shear modulus remains zero until a second, highe...

1 − x)(Bi1/2Na1/2)TiO3 − xBaTiO3 has been the most studied Pb-free piezoelectric material in the last decade; however, puzzles still remain about its phase transitions, especially around the important morphotropic phase boundary (MPB). By introducing the strain glass transition concept from the ferroelastic field, it was found that the phase transition from tetragonal (T, P4bm) to rhombohedral ...

We find through density functional theory that the two-dimensional MoTeI monolayer is intrinsically a ferromagnetic semiconductor. The magnetic states of are sensitive and can be significantly changed by biaxial strain. It fully spin polarized half-metallic or with tensile strain, while becomes antiferromagnetic when over 0.4% compressive strain applied. After phase transition, semiconducting c...