Simulations of magnetic microstructure in elliptical Permalloy elements used for controlled motion of magnetic particles are discussed. The saturating field of the elliptical elements was studied with respect to lateral dimensions for one-vortex, cross-tie, diamond and double-diamond states as initial zero-field domain configurations. With aspect ratio of 1:3 the short axis was varied from 125 ...

in this paper, we investigate variation of the wavelength, intensity and polarization of the self-assembled inas/gaas quantum dots emission by microphotoluminescence spectroscopy at the liquid helium temperature. the microcavity wafer sample is grown by molecular beam epitaxy (mbe) and chemically etched into the micropillar structure (with elliptical cross section - long and short axis 2µm×1.5µ...

The coronavirus is always idealized as a spherical capsid with radially protruding spikes. However, histologically, in the tissues of infected patients, capsids cross section are elliptical, and only sometimes [Neuman et al., “Supramolecular architecture severe acute respiratory syndrome revealed by electron cryomicroscopy,” J Virol, 80, 7918 (2006)]. This ellipticity implies that coronaviruses...

In this study, we perform a numerical analysis of the instability ligament in shear flow and investigate effects air-liquid on growth rate interface, breakup time, droplet diameter formed by breakup. The is stretched direction shearing airflow. Furthermore, as influence increases, becomes deformed into liquid sheet, perforation forms at center sheet. sheet breaks up due to contracts under surfa...

A fItrite element scheme (together with a conjugate gradient algorithmj is demonstrated to be a very effective method for analyzing general elastoplastic torsion of prismatic bars posed as quadratic programming problems. Solutions for bars with elliptical and Sokolovsky’s oval cross-sections are presented. The solutions for the elliptical bars agree with the existing elastic and limit plastic s...

Active region EUV loops are believed to trace a subset of magnetic field lines through the corona. Malanushenko et al. (2009) proposed method, using loop images and line-of-sight photospheric magnetograms, infer three-dimensional shape strength along each loop. McCarthy (2019) used this novel method compute total flux interconnecting pair active regions observed by SDO/AIA. They adopted common ...

In the present study, potential of finite element based molecular structural mechanics (MSM) for evaluating stress concentration factor of single-layered graphene sheets (SLGSs) with elliptical vacancies is successfully addressed. The MSM approach mimics the interatomic forces of the nanostructure by defining an equivalent frame structure containing beam elements. To obtain the mechanical and c...

The three-dimensional characterization of magnetic flux-ropes observed in the heliosphere has been a challenging task for decades. This is mainly due to limitation infer 3D global topology and physical properties from 1D time series any spacecraft. To advance our understanding whose configuration departs typical stiff geometries, here we present analytical solution flux-rope model with an arbit...

The aerodynamic characteristics of the Coleopteran beetle species Epilachna quadricollis, a species with flexible hind wings and stiff elytra (fore wings), are investigated in terms of hovering flight. The flapping wing kinematics of the Coleopteran insect are modeled through experimental observations with a digital high-speed camera and curve fitting from an ideal harmonic kinematics model. Th...