The quantum entropy of the Kerr black hole arising from gravitational perturbation is investigated by using Null tetrad and ’t Hooft brick-wall model. It is shown that the effect of the graviton’s spin to the entropy is dependent of the square of the spin and the angular momentum per unit mass of the black hole, and contribution of logarithm term to the entropy will be positive, zero, and negat...

We consider a correlated wavefunction including particle-hole pairing at half a reciprocal lattice vector for itinerant electrons hopping on a square lattice in two dimensions and subject both to on-site and nearest-neighbor repulsion. We find, within mean field theory, that in a suitable range of parameters there is a tendency toward a novel form of ordering characterized by discrete symmetry ...

Abstract The main aim of this investigation was to study the flexural strength and drift ratio simply supported rectangular RC hollow beams (with a longitudinal square hole) subjected gradually increased symmetrically applied one-point load. Each beam had 300 mm2 900 mm2-area square, position center hole 80 mm from top. cross-section beam, amount steel, stirrups kept constant. deflection these ...

In order to design and optimize high-sensitivity silicon nanowire-field-effect transistor (SiNW FET) pressure sensors, this paper investigates the effects of channel orientations and the uniaxial stress on the ballistic hole transport properties of a strongly quantized SiNW FET placed near the high stress regions of the pressure sensors. A discrete stress-dependent six-band k.p method is used f...