Abstract In this article, axisymmetric deformations of coupled functionally graded conical shells are studied. The analytical solution is presented by using the complex hypergeometric and Legendre polynomial series. results agree closely with reference for isotropic revolution. symbolic package Mathematica commands added to article help readers search particular solutions. detailed solutions tw...

Conical shock waves are generated as sharp conical solid projectiles fly supersonically in the air. We study such conical shock waves in steady supersonic flow using isentropic Euler system. The stability of such attached conical shock waves for non-symmetrical conical projectile and non-uniform incoming supersonic flow are established. Meanwhile, the existence of the solution to the Euler syst...

Virions of human immunodeficiency virus type 1 (HIV-1) and other lentiviruses contain conical cores consisting of a protein shell composed of the viral capsid protein (CA) surrounding an internal viral ribonucleoprotein complex. Although genetic studies have implicated CA in both early and late stages of the virus replication cycle, the mechanism of core disassembly following penetration of tar...

We report on a method to determine the temperature coefficient of the refractive index (dn/dT ) for non-fluorescent liquids which is based on the experimental observation of conical diffraction induced by self-phase modulation (SPM). Light absorbing impurities were added to allow for heat deposition by the excitation laser beam. We studied samples of tetrahydrofuran (THF, C4H8O) and toluene (C6...

A mathematical model of the dynamic instability a three-layer conical shells with honeycomb structure made using additive technologies has been obtained. Dynamic is recognized as interaction shell supersonic gas flow. The middle layer that homogenized into an orthotropic homogeneous medium. top and bottom layers are carbon fiber. vibrations described by fifteen unknowns. Each five unknowns: thr...

The determination of porosity heterogeneity within hydrocarbon reservoirs is important because cost-effective, efficient production of hydrocarbons depends on accurate knowledge of reserve estimates, and hydrocarbon distribution. A new magnetic resonance imaging (MRI) technique, based on the conical SPRITE (Single-Point Ramped Imaging with T1 Enhancement) MRI method is capable of revealing the ...