Purpose: Motorized or dynamic wedge is routinely used nowadays to facilitate the work and reduce time on the treatment machine. However, this will necessitate keeping the Multileaf collimator (MLC) direction parallel to the chest wall. The aim of our work is to study the effect of Multileaf collimator in the perpendicular (┴) or parallel(//) direction on: target volume coverage, dose homogeneit...

We show that the 3D wedge filling transition in the presence of shortranged interactions can be first-order or second order depending on the strength of the line tension associated with to the wedge bottom. This fact implies the existence of a tricritical point characterized by a short-distance expansion which differs from the usual continuous filling transition. Our analysis is based on an eff...

The Oligocene-Miocene granitic rocks of Deh Siahan, part of central Iranian volcanic belt, are intruded into Eocene volcano-sedimentary complex where their contact is marked by albite-epidote hornblende hornfels facies and granitic apophyses. The granitic rocks show enhanced LIL element abundances and low HFS/LIL ratios. Geochemical data, various trace element discriminant diagrams, enhanced Y/...

in this work dynamic recrystallization behavior of aisi 403 martensitic stainless steel was studied using hot compression tests over temperature range of 900 c -1200 c and strain rate range of 0.001 s-1 - 1 s-1. the obtained flow curves showed that the hot compression behavior of the alloy is controlled by dynamic recrystallization. the flow stress and strain corresponding to the critical, pe...

The method of analysis steady oscillations arising in the piecewise homogeneous wedge-shaped medium composed by two elastic wedges with different mechanical and geometric characteristics is presented. Method based on distributions’ integral transform technique allows reconstructing wave field whole displacement given domain boundary medium. problem question reduced to a equation (BIA). Solvabil...

We now know that substorm onset occurs within the near-Earth plasma sheet in the region associated with the Harang electric field reversal. It is also known that substorm onset is generally associated with a reduction in the large-scale convection driven by the solar wind, and that this reduction is imparted to the ionosphere a few minutes prior to substorm onset. This is the same time relative...

This paper investigates the effects of cutoff wall on fate nitrate (NO 3 - ), NO removal rate, and salinity distribution in a coastal aquifer under tidal action. A numerical study was performed based coupled model with variable-saturation variable-density flow convection-diffusion-reaction equation for solute transport unconfined aquifer. The results showed that led to larger upper plume (USP) ...