نتایج جستجو برای: shell of revolution
تعداد نتایج: 21175008 فیلتر نتایج به سال:
Torsional vibrations of composite poroelastic dissipative spherical shell are investigated in the framework of Biot’s extension theory.Here composite poroelastic spherical shell consists of two spherical shells, one is placed on other, and both are made of different poroelastic materials. Consideration of the stress-free boundaries of outer surface and the perfect bonding between two shells lea...
to investigate the genetic diversity of persian walnut (juglans regia), 608 different walnut genotypes of neyriz region were evaluated for 30 morphological characteristics including kernel color, fruit shape, shell seal, shell texture and kernel plumpness, kernel weight, percentage of kernel as well as thickness of shell. the correlation between was traits in most cases significant at either 1 ...
Introduction: Contamination of pistachio nuts of Aspergillus species and their toxins is the most serious health threat for human and animal. Sorting out contaminated pistachios is critical to reduce the sources and levels of aflatoxins in pistachio nuts. Distribution of aflatoxin in processed pistachios was determined in the fifth and twentieth of September and fifth of October. Methods: Samp...
This article tries to identify how some dissatisfactions leading to Islamic revolution in novels published after Islamic revolution,in the form of quantitative and deductive investigation, in the framework of social reflection theory. In conducting this research applying the content analysis technique following novels have been studied; "57 train","Esma'il","Season of Pigeon","Island of Itinera...
As the pioneer of contemporary Islamic awakening, Islamic revolution of Iran has a mission to inform people of middle-east region about the opportunities and challenges of recent uprisings. On the other hand, it has yet another mission, called the exportation of the revolution by late Imam Khomeini, to inform people of the countries where Islamic awakening has not spread yet. The tool Islamic r...
Economically success incomerical and Native laying hen farms in some eaten is related to egg quality. So, egg quality is a one of the most important factor affecting hatchability and lead to increasing the egg demand. The current study was carried out in aim to estimate the genetic parameters for egg quality traits in Fars native fowls. To do this, 2000 pedigree recorded eggs were collected at ...
revolution theoreticians have declared contending and approximately incompatible theories, caused in bewilderment among concerned field enthusiasts. as a result, some have intended to categorize these theories till reduce bewilderment, and make them easier to study. one of these theoreticians is jack goldstone who at first categorized theories of revolution into three generations. but after the...
The free vibration analysis of the functionally graded cylindrical shell panels with and without cutout is carried out using the finite element method based on a higher-order shear deformation theory. A higher-order theory is used to properly account for transverse shear deformation. An eight noded degenerated isoparametric shell element with nine degrees of freedom at each node is considered....
Finite Element Analysis of Buckling of Thin Cylindrical Shell Subjected to Uniform External Pressure
One of the common failure modes of thin cylindrical shell subjected external pressure is buckling. The buckling pressure of these shell structures are dominantly affected by the geometrical imperfections present in the cylindrical shell which are very difficult to alleviate during manufacturing process. In this work, only three types of geometrical imperfection patterns are considered namely (a...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید