Kerr spacetime using the surface method
Instability of the Proca field on Kerr spacetime
... that the S = − 1 mode has the smallest index, and thus it is expected to grow parametrically faster than a scalar field, and the other polarizations of the Proca field. Finding bound states of the Proca field has been a ...
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Bound states of the Dirac equation on Kerr spacetime
... In this paper we formulate a practical method for computing Dirac bound states on the Kerr spacetime. Our aim is to use highly-accurate numerical data to verify and test various asymptotic results, ...
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Electromagnetic fields on Kerr spacetime, Hertz potentials, and Lorenz gauge
... This work has three specific aims. First, to review the complementary approaches of Cohen and Kegeles (1974) and Frolov et al. (2017) in the context of the 4D Kerr black hole. Second, to identify vector potentials ...
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Modeling of Optical Pulse Propagation in Kerr and Raman Nonlinear Dispersive Media Using JE-TLM Method
... Abstract—In this paper, we propose a simulation model of electromagnetic wave’s propagation in media with different kinds of dispersions. This model exploits the dependence of the polarization current density and the ...
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Surface Tension Measurements Using the Drop Shape Method
... and surface area are computed, a horizontal line is drawn at the wetted end of the tip where the fluid volume and area measurement ...the Surface Tension ...
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Effects of Machine Parameters on Surface Roughness Using Response Surface Method in Drilling Process
... Since drilling process is one from the most important process in industry, several researchers were studied in order to optimize the quality in this process. Mohan et al. [5] investigated the effect of cutting speed, ...
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Drawing Kerr
... the surface into the extra ...the surface depends on the angle ϑ ...the surface are of im- ...the surface along an ellipse, one will discover that this vector also oscillates on its way, ...
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A Riemann Solver Free Spacetime Discontinuous Galerkin Method for General Conservation Laws
... free spacetime discontinuous Galerkin method for general hyperbolic conservation ...the method is able to accurately solve various con- servation laws including the scalar advection equations, ...
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Kerr Black Hole Geometry Leading to Dark Matter and Dark Energy via E Infinity Theory and the Possibility of a Nano Spacetime Singularities Reactor
... the Kerr black hole and move from there to show that E = mc 2 ( 21 22 ) could be subdivided again into E 3 = mc 2 ( 5 22 ) and E 4 = mc 2 ( 16 22 ) ...large spacetime is not outlandish nor science ...mini ...
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Assessment of Surface Caking of Powders Using the Ball Indentation Method
... 4. Conclusions An assessment of surface caking of PVP, HPC and CaHPO 4 powders has been made by BIM. The hardness of powder beds of PVP, HPC and CaHPO 4 increases with increasing RH and temperature. RH and ...
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Machining surface roughness monitoring using acoustic emission method
... offline method, data cannot be taken unless the machine is stop ...this method, we can know that online method is more applicable for industries due to its benefits which is save time and ...
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Optimization of magnetic devices using Surface Current Method (SCM)
... density using suitable distributions of surface currents on the magnetic boundaries with dierent homogeneous permeability models; therefore, magnetic boundaries can be replaced by suitable distribution of ...
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Average Surface Roughness Measurement Using Photometric Stereo Method
... Keywords Surface Texture, Photometric Stereo, Measurement, Imaging Techniques ...and surface finish. Surface topography, especially surface roughness, has an essential role to determine the ...
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Optimization Technique using Response Surface Method for USMW process
... This study aims at optimizing the parameters of a manufacturing process. The process considered here is the ultrasonic metal welding of copper sheet and copper wire. The strength of the weld is maximized by optimizing ...
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Using light scattering method to find The surface tension of water
... Theory:- Surface tension is a property of fluids that causes tension or contraction of the fluid molecules near the surface or plane of interaction with another material or ...the surface experience ...
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To Study the Surface Properties of GFRP in USM by Using Taguchi Method
... When using large-area tools, the concentration is held low to avoid circulation ...and surface finish of the machining is the grit size or grain size of the ...
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A simple method to determine surface albedo using digital photography
... albedo using a digital camera Every student is likely to possess a commercial device that automatically measures light levels – a digital camera, or camera built into a mobile ...
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Charge and the topology of spacetime
... Definition 3.2 (Net charge) If a closed k-form or a divergence free (n − k)-multi vector density is given on M , the charge inside a k-sphere S k linking the worldtube T is also called the net charge of the n-geon. ...
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The Expanding Spacetime Theory
... Hubble Time is the apparent time to the Big Bang assuming the redshift is Doppler effect. In the EST model, Hubble Time is a constant unre- lated to the age of the universe. The value of Hubble Time depends on the value ...
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The Effects of Newmark Method Parameters on Errors in Dynamic Extended Finite Element Method Using Response Surface Method
... 5. CONCLUDING REMARKS In this study, the XFEM was implemented to model a dynamic problem with a stationary crack. Obtained dynamic stress intensity factors was verified with analytical solution. Also, the effects of ...
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