Shell structures, especially cylindrical shells, are widely used in aerospace and naval architectural industries. Submarine hulls and aircraft bodies can be idealized as cylindrical shell structures. The study of vibrations of cylindrical shells is an important aspect in the successful applications of the cylindrical shells. The free vibration characteristics of a submarine hull have an importa...

In this paper we present a method to localize a cylindral surface with only one perspective view. Based on a priori knowledge we nd two axes in the image in order to obtain the three rotation angles between the cylindrical surface coordinate system and the camera coordinate system. Various applications of the proposed method are presented.

It is important to consider the thermal management of lithium-ion batteries overcome their limitations in usage and improve performance life cycles. In this study, a novel cooling system for battery packs proposed by using an inner cylinder channel different-shaped nanoparticles base fluid, which used as medium. The improvements 20 Ah capacity are compared water–boehmite alumina (AlOOH) nanoflu...

The present research examines the unsteady sensitivity analysis and entropy generation of blood-based silver–titanium dioxide flow in a tilted cylindrical W-shape symmetric stenosis artery. study considers various factors such as electric field, joule heating, viscous dissipation, heat source, while taking into account two-dimensional pulsatile blood periodic body acceleration. finite differenc...

This work compares a theoretical model with consolidated numerical related to the thermodynamic performance of boehmite alumina nanoparticles in different formats counterflow double pipe heat exchanger. The shapes non-spherical under analysis are platelets, blades, cylindrical, and bricks. second law thermodynamics is applied determine Nusselt number, pressure drop, thermal efficiency, viscous ...

Modern methods of nanophotonics allow creating miniature devices that change the direction light propagation, modulate phase front, and control outcoming state polarization. One promising areas research is development flat optics elements based on planar analogues metamaterials—dielectric metasurfaces, which are two-dimensional arrays subwavelength nanoparticles with a high refractive index low...


 Building micro and macro sized structures using compacted magnetic nanoparticles is a widely used approach that has proven great potential as the basis for novel materials made by design. These are compactation of soft particles in nano o micrometer sizes their macroscopic properties mostly governed magnetostatic effects combination intervening shapes, namely those individual piece with ...

Synthesis of strontium oxide nanoparticles was carried out by sol –gel method using nitrate and sodium hydroxide at room temperature which is very simple cost effective. The characterization done X-ray diffraction, scanning electron microscopy (SEM) Fourier transform infra-red (FTIR). diffraction pattern indicates that the are crystalline in nature. size nanoparticle calculated Debye-Scherrer f...

In this study, discrepancies between the free vibration of fiber-metal laminate (FML) and composite cylindrical shells reinforced by carbon nanotubes (CNTs) based on Love’s first approximation shell theory have been considered by beam modal function model. The representative volume elements consist of three and four phases for composite and FML structures, respectively, which include fiber, CNT...

  Objective: Studies have demonstrates that physical properties of denture base affect patient satisfaction and acceptance. Thermal conductivity is among the most important properties of denture base influencing the sense of taste and gingival health. The conventionally used acrylic resin has a low coefficient of thermal conductivity. This study aimed to improve the thermal conductivity of acry...