Abstract The subject of the investigation is an elastic functionally graded hollow spherical device under internal pressure and homogeneous heating. Since in reality uncertain parameter values are to be expected with respect both basic material data influences manufacturing process, effects these uncertainties focus present study. For numerical results, specifically a container or vessel steel-...

This study determined the buckling characteristics of sphere-segmented toroidal shells subjected to external pressure. The proposed vessel comprises six spheres and rings. Two laboratory models with same nominal dimensions were manufactured, measured, tested, evaluated. To investigate whether are imperfection-sensitive structures closely spaced eigenvalues, subspace algorithm was applied evalua...

The identification of vascular networks is an important topic in the medical image analysis community. While most methods focus on single vessel tracking, the few solutions that exist for tracking complete vascular networks are usually computationally intensive and require a lot of user interaction. In this paper we present a method to track full vascular networks iteratively using a single sta...

Abstract A roadmap is outlined for determining comprehensive seismic fragility curves (single or groups of) spherical pressure vessel structures commonly found in oil refineries. The developed modeling techniques aim to strike a balance between accuracy and computational efficiency, with focus on capturing the most pertinent failure modes relevant these structural types. First, set of “partial”...

Objective(s): A novel technique for the early diagnosis of breast cancer involves the use of nanoparticles (NPs). The present study aimed to use gold NPs to assess the variations in light source transfer intensity. Materials and Methods: Blood samples with hemoglobin (Hb) concentrations of ×1, ×2, and ×4 were used to simulate normal and cancerous conditions in the breast. Spherical gold N...

A novel divertor biasing using four plates that are arranged toroidally every 90◦ on the upper plate is applied to low-density plasmas of QUEST spherical tokamak. When some these biased in-phase by applying a sawtooth waveform voltage 85-V amplitude and 50-Hz repetition, up approximately 35% reduction particle flux observed during positive biasing. The input power for 0.2 kW tokamak produced ∼1...

The research deals with the stationary flow of an inhomogeneous incompressible fluid inside a spherical vessel under influence potential mass force. Using methods four-dimensional analysis, solution to problem is constructed in explicit analytical form. Exact solutions Euler equations for homogeneous are obtained only some simplest problems. Researchers usually prove existence and uniqueness va...

shrink fit process is a useful technique in order to introduce beneficial residual stress in compound pressure vessels. in this paper, the effects of geometrical tolerances on residual stresses have been studied for a compound shrink fitted pressure vessel, practically. three layers, which are designed based on an optimum nominal thickness and overlap dimensions and tolerances, have been fitted...

N.B. Figure 4 should occupy a whole page in landscape orientation. Abstract When any exothermic chemical reaction occurs inside e.g. an unstirred spherical vessel, the heating effect of the reaction often induces temperature gradients and consequently natural convection. This work sets out to compare previously measured temperatures at different positions inside such a batch reactor with values...