in this paper, a method based on binary-coded genetic algorithm is proposed to explore an optimization method, for obtaining an optimal elliptical tank. this optimization method enhances the rollover threshold of a tank vehicle, especially under partial filling conditions. minimizing the overturning moment imposed on the vehicle due to c.g. height of the liquid load, lateral acceleration and ca...

The backscattering cross section of cylindrical and elliptical disk-shaped scatterers was investigated in this study, utilising a new numerical solution method called the relaxed hierarchical equivalent source algorithm (RHESA). results were compared with similar cases, using analytical validation from literature. objective research to look into possibility replacing methods RHESA volume scatte...

In this paper, we study a new problem of finding a convex drawing of graphs with a non-convex boundary. It is proved that every triconnected plane graph whose boundary is fixed with a star-shaped polygon admits a drawing in which every inner facial cycle is drawn as a convex polygon. Such a drawing, called an inner-convex drawing, can be obtained in linear time.

The heat transfer is studied during the melting and solidification of sp11 sp24 phase change materials in different container shapes. are further mixed with nano-alumina nano CuO enhancements. We aim to identify most favorable material for free-cooling summer free-heating winter. Ansys Fluent 20.2 used analyze 2D models mechanisms samples cylindrical, square, rectangular, elliptical-shaped caps...

Researching the moving speed of particles in a drum is helpful to optimal design rotating device. In this paper, average mixing velocity flake with different shapes an elliptical studied. detail, systems rectangular, triangular, and circular are studied; rollers eccentricities periodic variation characteristics particle system at 15 rpm 45 compared analyzed; curves velocity, peak fitting curve ...

The existence of the new bell-shaped span-load wing is said to has best lift distribution especially comparing elliptical wing. Bell-shaped designed by configuring twist However, information on aerodynamic and stability characteristics limited. Thus, main purpose research evaluate characteristic strengthen claim capability in producing minimum induced drag. As expected be beneficial aviation de...

In this paper, we further develop the theory of complete mixability and joint mixability, we provided sufficient conditions for certain univariate distributions with oneside unbounded support that are not joint mixable and complete mixable. An alternative proof to a result of Wang and Wang (2016) which related to the joint mixability of elliptical distributions with the same characteristic gene...

A computational fluid dynamic (CFD) study compared two configurations of distal anastomosis of 12 mm Contegra conduit: conventional 'circular' vs. oblique 'elliptical' anastomosis extended on the left PA, evaluating pressure and velocity profiles, and shear stress, from PA origin to the bifurcation. 'Elliptical' anastomosis provides larger (=54% difference) cross-sectional area than 'circular' ...

A novel flexure hinge named half circular-elliptical hybrid flexure hinge was presented. Based on Castigliano’s Displacement Theorem, the compliance equations of the novel flexure hinge were formulated. A computer aided analysis and parametric design program of the half circular-elliptical hybrid flexure hinge was developed by VC++6.0. A specific half circular-elliptical hybrid flexure hinge wa...