نتایج جستجو برای: shell of revolution
تعداد نتایج: 21175008 فیلتر نتایج به سال:
this paper seeks to answer the question whether the constitutional revolution of 1905-1911 in iran was a democratic revolution or social revolution? this discussion has been explained from the view point of the political sociology, relying on the moore's theory. studies indicate that the constitutional revolution in all periods has had the features of democratic revolution for the followin...
We present an in-depth analysis of the geometrical percolation behavior in the continuum of random assemblies of hard oblate ellipsoids of revolution. Simulations were carried out by considering a broad range of aspect ratios, from spheres up to aspect-ratio-100 platelike objects, and with various limiting two-particle interaction distances, from 0.05 times the major axis up to 4.0 times the ma...
Hermetic reciprocating compressor with elliptical shell radiates noise whose frequency spectrum has a peak level at about 200 Hz and about 300 Hz. The 200 Hz and 300 Hz noise is mainly radiated from the top and the side of the compressor shell, respectively. For clarifying the noise radiation mechanism, experimental and theoretical analyses were performed. A noise source simulation test was set...
Free vibration characteristics of thin perforated shells revolution vary depending not only on the dimensionless thickness shell but also perforation structure. All holes are assumed to be free, that is, without any kinematical constraints. For a given configuration there exists critical value below which homogenisation fails, since modes do have corresponding counterparts in non-perforated ref...
Since the audience satisfaction of programs related to Islamic revolution has an important role in their decision to watch these programs that consequently exerts impact on how the audience learn about the phenomenon of Islamic revolution, therefore, through deeper understanding of these factors and planning to increase audience satisfaction, the officials in charge of these programs may utiliz...
So far, there have been three major technological advances. The first industrial revolution in Britain began and hydraulic and steam machines were introduced to factories. The Second Industrial Revolution differentiated between components and assembly of products based on the division of labor. This led people to the era of cost-effective products and mass production. The Third Industrial Revol...
Background: All revolutions occurred for ages have undergone two hard phases which has special importance. One is the occurrence of the revolution and the other is the constancy and continuity of the revolution, so as to achieve its goals. Sustaining and maintaining revolution is more arduous and difficult task between the two mentioned principals.The Islamic Republic revolution of Iran is not ...
In this paper, the free vibration characteristics of various coupled composite laminated doubly curved revolution shells are investigated under generalized boundary conditions (BCs). The joint shell structure consists a shell–cylindrical shell–doubly structure, and here, unlike previous structures, inversely joined together. such as elliptical, paraboloidal, spherical considered. first order sh...
the information revolution is one of the important problem that affects many aspects our life. this revolution and it’s technology not only increase the actors in international relations but also creates the new rules and new space. because, this revolution and it’s political effects , the main purpose of this paper is the examination of international relations theories about this problem. so i...
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