نتایج جستجو برای: symmetry
تعداد نتایج: 85546 فیلتر نتایج به سال:
we study curvature properties of four-dimensional lorentzian manifolds with two-symmetry property. we then consider einstein-like metrics, ricci solitons and homogeneity over these spaces.
in this study, the radial distribution and gravimetric storage capacities of hydrogen on coronene (c24h12) and its si substituted forms, c24h12, c24-nsinh12 (n= 4-24), have been investigated at 298 k and 0.1 mpa (standard situation) using (n,v,t) monte carlo simulation by lennard-jones (lj) 12-6 potential. the results show that the increase of number of silicon substitution doesn’t have any eff...
context periodontal plastic surgery can help people improve their lives by addressing aesthetic parameters of their smile. much of what comprises a beautiful and appealing smile is influenced by emotion and personality; however, many structural elements of a smile can be improved through surgical intervention. evidence acquisition the end result often lends significant support to people who wis...
In this review we discuss theories of the electroweak symmetry breaking sector in which the W and Z interactions become strong at an energy scale not larger than a few TeV.
Many CSPs can be effectively represented and efficiently solved using matrix models, in which the matrices may have symmetry between their rows and/or columns. Eliminating all such symmetry can be very costly as there are in general exponentially many symmetries. Cost-effective methods have been proposed to break much of the symmetry, if not all. In this paper, we continue with this line of res...
Purpose: The purpose of this study is to investigate the environmental status of the public libraries of the province of Kerman affiliated to Iran public libraries foundation from the librarians’ viewpoints based on the criteria of 5S symmetry system. Method: The research method is a survey method. The research questionnaire with 77 components was prepared based on the criteria of 5S symmetry...
Objects in the world, natural and artificial alike, are often bilaterally symmetric. The visual system is likely to take advantage of this regularity to encode shapes for efficient object recognition. The nature of encoding a symmetric shape, and of encoding any departure from it, is therefore an important matter in visual perception. We addressed this issue of shape encoding empirically, notin...
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