Shapes of minimal-energy DNA ropes condensed in confinement

Maximum Energies of Force-free Coronal Flux Ropes

Magnetic energy is believed to play amajor role in powering coronal mass ejections (CMEs). Freemagnetic energy is associated with electric currents that give the magnetic field more energy than a purely potential (current-free) field. For magnetic energy alone to power a CME, the energy must be sufficient to open the magnetic field to interplanetary space, to lift the ejecta against solar gravi...

Effect of Steel Confinement on Behavior of Reinforced Concrete Frame

The strength and ductility of concrete improve under multi-axial compressive stress due to confinement effect. Some parameters are effective for considering the confinement in concrete and various stress-strain models were developed by different researchers. Longitudinal and transverse reinforcement steels can influence on confinement in reinforced concrete members. In this paper, various stres...

Optimization of the confinement energy of quantum-wire states in T-shaped GaAs/AlxGa1-xAs structures.

SADDLE POINT VARIATIONAL METHOD FOR DIRAC CONFINEMENT

A saddle point variational (SPV ) method was applied to the Dirac equation as an example of a fully relativistic equation with both negative and positive energy solutions. The effect of the negative energy states was mitigated by maximizing the energy with respect to a relevant parameter while at the same time minimizing it with respect to another parameter in the wave function. The Cornell pot...

Shapes of 3He clusters.

Triaxial deformations are considered for determining the binding energies of open-shell, unpolarized HeN clusters. The shapes of He clusters are found to be close to spherical, in contrast to the well-deformed shapes of alkali-metal clusters. As a result, odd-even alternations and subshell closures between major shells are absent in the size evolution of the chemical potentials, and the second-...