نتایج جستجو برای: internal pressurized stiffened conical shell

تعداد نتایج: 295430  

Journal: :Journal of Low Frequency Noise Vibration and Active Control 2022

Acoustic radiation through a system of double-walled shells, lined with porous foams, and stiffened by annular plates simultaneously is studied. Based on modeling, the foams as absorbent fluid property, acoustic characteristics structure are presented for various sandwich construction means vibro-acoustic finite element method automatic matching layer technology. It noted that equipping enhance...

2001
A. M. Belsky M. A. Stepanov

Internal conical refraction in biaxial gyrotropic crystals has been studied theoretically. A special case of Gaussian beam conical refraction has been considered comprehensively. The results of numerical simulation agree well with the available experimental data. 2002 Elsevier Science B.V. All rights reserved. PACS: 42.25.Bs; 42.25.Lc; 42.25.Fx; 78.20.Ek; 78.20.Fm

2008
F.Rahaman M.Kalam K A Rahman

By applying ’Darmois-Israel formalism’, we establish a new class of thin shell wormhole in the context of global monopole resulting from the breaking of a global O(3) symmetry. Since global monopole is asymptotically conical ( no longer asymptotically flat ), we call it as conical thin shell wormhole. Different characteristics of this conical thin shell wormhole, namely, time evolution of the t...

2013
Farhad Ahmadi Fariba Rahimi

Egg shell quality and egg internal quality are of major importance to the egg industry worldwide. This review covers the formation of the hen’s egg and ways of measuring egg shell quality and egg internal quality. Egg shell quality may be measured as egg size, egg specific gravity and shell color, shell breaking strength, shell deformation (destructive or non-destructive), shell weight, percent...

2016
Xiang Zhou Shixi Zang Hai Wang Zhong You

Sandwich structures with foldcores are regarded as a promising alternative to conventional honeycomb sandwich structures as lightweight structural materials. One of the proposed applications of foldcore sandwich structures is on the aircraft fuselage and the interstage of a rocket. While flat foldcore sandwich structures have been intensively studied in the literature, there lacks a general des...

Journal: :Thin-walled Structures 2022

This paper provides analytic solutions for the dynamics of a pressurized elastoplastic thin-walled tube at small strains. The closed-form expressions stress and displacement fields are derived within framework thin cylindrical shell theory. Three dynamic load-processes considered: an increasing-constant internal pressure, rectangular triangular pulse loads. It is found that, depending on extern...

Journal: :The journal of physical chemistry. B 2016
Gonca Erdemci-Tandogan Jef Wagner Paul van der Schoot Roya Zandi

Human immunodeficiency virus (HIV) capsid proteins spontaneously assemble around the genome into a protective protein shell called the capsid, which can take on a variety of shapes broadly classified as conical, cylindrical, and irregular. The majority of capsids seen in in vivo studies are conical in shape, while in vitro experiments have shown a preference for cylindrical capsids. The factors...

2006
Robert B. Mann John J. Oh

We study gravitationally collapsing models of pressureless dust, fluids with pressure, and the generalized Chaplygin gas (GCG) shell in (2+1)-dimensional spacetimes. Various collapse scenarios are investigated under a variety of the background configurations such as anti-de Sitter(AdS) black hole, de Sitter (dS) space, flat and AdS space with a conical deficit. As with the case of a disk of dus...

Journal: :علوم دامی ایران 0
زهرا رئوفی دانشجوی ارشد گرگان سعید زره داران عضو هیئت علمی قدرت اله رحیمی عضو هیئت علمی ساری مجتبی آهنی آذری عضو هیئت علمی گرگان بهروز دستار عضو هیئت علمی گرگان

the present research was conducted to analyze the genetic structure of egg quality traits in japanese quail. external and internal egg quality traits were assessed on 1706 eggs of laying japanese quail. eggs were collected for 4 days at the quaits 10 weeks of age. the investigated traits were analyzed through univariate as well as multivariate animal models employing restricted maximum likeliho...

Journal: :Metals 2023

The conical-cylindrical shell is prone to stress concentration in the convex cone position under action of deep-sea pressures. This results unidirectional or bidirectional positive tensile stresses on surfaces shell. a large, welded structure. Welding residual was generated at cone-column joint position, resulting high-stress this location. Under both welding and seawater pressure, cracks easil...

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