We calculate the shear viscosity of field theories with gravity duals of Gauss-Bonnet gravity with a non-trivial dilaton using AdS/CFT. We find that the dilaton filed has a non-trivial contribution to the ratio of shear viscosity over entropy density and after imposing causal constraint for the boundary field theory, the new lower bound 4/25π, obtained from pure Gauss-Bonnet gravity, may have a...

In order to obtain sufficiently accurate spherical harmonic model of asteroid’s gravity field during the design stage of asteroid exploration mission which we can benefit from to design the orbit trajectory or the landing trajectory, the author of this paper proposed a method to determine the spherical harmonic model of asteroid’s gravity field based on polyhedron model. Firstly, this method re...

In this paper, controlling the location of the tip of an L-shape beam under gravity field is investigated. The beam is covered with piezoelectric patches. The gravity filed moves the tip of beam downward and the actuators with induced voltage move the tip to the previous location. to optimize the best location and voltages for actuators, the particle swarm optimization algorithm code is develop...

A three-dimensional mathematical and physical model coupling with the heat transfer and the flow of molten metal in the centrifugal casting of the high speed steel roll was established by using CFD software FLUENT. It can be used to analyze the distribution of the temperature filed and the flow filed in the centrifugal casting under the gravity, the electromagnetic stirring force and the centri...

İdari Yargılama Usul Kanunu (İYUK), Danıştay, İdare ve Vergi Mahkemelerine gelen uyuşmazlıklarda, dava taraflarına bir takım usul yükümlülükleri getirmektedir. Aynı kanun bu yükümlülüklere uyulmadığı takdirde mahkemelerin ne tür kararlar vereceğini de düzenlemiştir. Davanın reddi, dilekçenin dosyanın işlemden kaldırılması, davanın kabulü gibi yanında diğeri açılmamış sayılması kararıdır.
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The dynamical instability of a self-gravitating magnetized filamentary cloud was investigated while taking account of rotation around its axis. The filamentary cloud of our model is supported against self-gravity in part by both a magnetic field and rotation. The density distribution in equilibrium was assumed to be a function of the radial distance from the axis, ρ0(r) = ρc (1 + r 2/8H2)−2, wh...

Three types of streamline topology in a Kármán vortex street flow are shown under the variation of spatial parameters. For the motion of dilute particles in the Kármán vortex street flow, there exist a route of bifurcation to a chaotic orbit and more attractors in a bifurcation diagram for the proportion of particle density to fluid density. Along with the increase of spatial parameters in the ...

In this paper, we study two different phenomena (the Newman–Janis algorithm and the semiclassical Hamilton–Jacobi method) to analyze Hawking temperature (TH) for massive 4-dimensional regular Hayward BH with spin parameter. First of all, compute rotating black hole solution by taking algorithmic rule. We derive TH help surface gravity. have also analyzed effects parameter a free l on graphs. Mo...

Division of application No. 09/411,919, filed on Oct. 4, 1999, which is a continuation-in-part of application No. 09/385,615, filed on Aug. 30, 1999, now Pat. No. 6,132,210, which is a continuation of application No. 09/082,030, filed on May 20, 1998, now Pat. No. 5,961,324. Provisional application No. 60/120,612, filed on Feb. 18, 1999, provisional application No. 60/109,299, filed on Nov. 19,...