Flat band electronic modes in twisted graphene bilayers are responsible for superconducting and other highly correlated electron-electron phases. Although some hints were known of a possible connection between the quantum Hall effect zero flat modes, it was not clear how such appears. Here behavior bilayer is studied using chiral model Hamiltonian. As result, proved that high-order magic angles...

This study was aimed to compare robotic-assisted implantation of a total knee arthroplasty with conventional manual implantation. We controlled, randomized, and reviewed 72 patients for total knee arthroplasty assigned to undergo either conventional manual implantation (excluding navigation-assisted implantation cases) of a Zimmer LPS prosthesis (Zimmer, Warsaw, Ind) (30 patients: group 1) or r...

in this paper the effects of transmittance, dispersion angle and diffusion length on the quantum efficiency of solar cells (qesc) have been simulated and investigated. optical path technic is used for simulation. the results show that base thickness, diffusion length, dispersion angle, number of optical confinement path and transmission angles have an extremely effects on the qesc. simulation r...

Let A be a densely defined closed, linear $$\omega$$ -sectorial operator of angle $$\theta \in [0,\frac{\pi }{2})$$ on Banach space X, for some $$\omega \mathbb {R}$$ . We give an explicit representation (in terms special functions) and study the precise asymptotic behavior as time goes to infinity solutions following diffusion equation with memory: $$\displaystyle u'(t)=Au(t)+(\kappa *Au)(t), ...

The adhesion of two surfaces relies on the propagation an front. What is dynamics front when both are coated with a thin layer viscous liquid? Standard criteria from fingering instabilities would predict stable since fluid pushes away air low viscosity. Surprisingly, may be unstable and generally leads to growing fingers. We demonstrate model experiments where adhering slightly tilted by angle ...

We will mainly discuss the measurable angle (local angle) of light ray $\psi_P$ at position observer $P$ instead total deflection (global $\alpha$ in Kerr spacetime. investigate not only effect gravito-magnetic field or frame dragging but also contribution motion with a coordinate radial velocity $v^r$ and transverse $bv^{\phi}$ ($b$ is impact parameter $v^{\phi}$ angular velocity) which are co...