Abstract We consider the accretion process in thin disk around a supermassive black hole Einstein-aether-scalar theory. probe effects of model parameter on physical properties disk. The results show that with increasing value parameter, energy flux, radiation temperature, spectra cut-off frequency, luminosity, and conversion efficiency decrease. is hotter more luminous than general relativity f...

Using a new scaling and a cut-off procedure, we show that φ theory on a deformed noncommutative R can be obtained from the corresponding theory on the fuzzy S × S. The star-product on this deformed R 4 is non-associative, and the theory naturally has an ultra-violet cut-off, Λ = 2/θ. We show that UV-IR mixing is absent to one loop, and that the β-function is the same as that of an ordinary φ th...

In a recent preprint Kong et al, arXiv: 0902.0642v1 (2009) claimed to calculate the lattice thermal conductivity of single and bi-layer graphene „from first principles”. The main findings were that the Umklapp-limited thermal conductivity is only slightly higher than that of high-quality bulk graphite along the basal plane, and that it does not strongly depend on the number of atomic layers. He...

this study planned for finding the agreement dxa and quantitative ultrasound (qus) of phalanx in osteoporosis diagnosis and cut off point of qus for osteoporosis diagnosis in postmenopausal women. in 180 postmenopausal women, bmd of axial regions with dxa (dpx-md, ge, lunar, usa) and phalanx with qus (dbm-sonic 1200) measured. agreement of methods and cut off for qus in defining osteoporosis ob...

There is increasing evidence that many kilometer-sized bodies in the Solar System are piles of rubble bound together by gravity. We present results from a project to map the parameter space of collisions between kilometer-sized spherical rubble piles. The results will assist in parameterization of collision outcomes for Solar System formation models and give insight into disruption scaling laws...