Recent experimental and theoretical studies of two-dimensional (2D) turbulence reveal that spectrally condensed turbulence which is a system of coupled large-scale coherent flow and broadband turbulence, is similar to plasma turbulence near the L-H transition threshold. Large condensate vortices fed via the turbulent inverse energy cascade, can control both the level of the broadband turbulence...

In protoplanetary discs, the coagulation of dust grains into large aggregates still remains poorly understood. Grain porosity appears to be a promising solution allow survive and form planetesimals. Furthermore, shattering has generally been considered come only from collisional fragmentation; however, new process was recently introduced, rotational disruption. We wrote one-dimensional code tha...

Hydrostatic thrust bearings are the core part of hydrostatic spindle, which is widely used in high precision grinding machines. In this paper, viscosity-temperature (v-t) characteristics oil systematically investigated, essential for improving performance bearing and spindle working at pressure rotational speed. Based on computational fluid dynamics (CFD) simulation developed, variation rules s...

The theory of instability accretion disks about black holes, neutron stars or proto-planets, is revisited by means the recent method Spectral Web. cylindrical disk differential equation shown to be governed forward and backward Doppler-shifted continuous Alfv\'en spectra $\Omega_{\rm A}^\pm \equiv m \Omega \pm \omega_{\rm A}$, where $\omega_{\rm A}$ static frequency. It crucial take non-axisymm...

OBJECTIVE Fibromyalgia is characterized by diffuse musculoskeletal pain and discomfort. There are several reports regarding autonomic nervous system dysfunction in patients with fibromyalgia. Heart rate turbulence is expressed as ventriculophasic sinus arrhythmia and has been considered to reflect cardiac autonomic activity. Heart rate turbulence has been shown to be an independent and powerful...

A stabilized finite element method is adopted to solve the Navier–Stokes equations written in arbitrary Lagrangian–Eulerian from. Extensive simulations are undertaken investigate vortex induced vibration characteristics of a piggyback circular cylinder system, or smaller rigidly connected main one. In particular, system three-degree-freedom motion, its rotation motion taken into account, while ...

third molar eruption is an unpredictable event. occasionally, mandibular third molars undergo angular changes in young adults. this rotational drift is of unknown etiology, is not predictable and may facilitate the eruption or may make the impaction worse. a rare case is presented with severe rotational drift of a mesioangularly impacted mandibular third molar.

In this article, I would like to express some of my views on the nature of turbulence. These views are mainly drawn from the author’s recent results on chaos in partial differential equations [10]. Fluid dynamicists believe that Navier-Stokes equations accurately describe turbulence. A mathematical proof on the global regularity of the solutions to the Navier-Stokes equations is a very challeng...

Meso-scale turbulence is an innate phenomenon, distinct from inertial turbulence, that spontaneously occurs at low Reynolds number in fluidized biological systems. This spatiotemporal disordered flow radically changes nutrient and molecular transport in living fluids and can strongly affect the collective behaviour in prominent biological processes, including biofilm formation, morphogenesis an...