We derive recursive relations for the Schrieffer--Wolff (SW) transformation applied to half-filled Hubbard dimer. While standard SW is set block-diagonalize transformed Hamiltonian solely at first order of perturbation, we infer from two types modifications, variational or iterative, that approach, even enforce homogeneous case, desired block-diagonalization infinite perturbation. The modified ...

land-use planning is a science that determines the type optimum of land-use through studying the ecological characteristics of the land as well as its socio-economic structure. the primary objective of this study is to evaluate the land-use and natural resources for future sustainable land planning using gis. in this study, the makhdoom’s systematic method was used to analyze the ecological and...

We study the enclosure method for the p-Calderón problem, which is a nonlinear generalization of the inverse conductivity problem due to Calderón that involves the p-Laplace equation. The method allows one to reconstruct the convex hull of an inclusion in the nonlinear model by using exponentially growing solutions introduced by Wolff. We justify this method for the penetrable obstacle case, wh...

and masculinizing effects are seen, the former being greater than the latter. The significance of these findings remains for future study.5 1 Willier, B. H., Gallagher, T. F., and Koch, F. C., Proc. Nat. Acad. Sci., 21, 625-631 (1935). 2 Willier, B. H., Gallagher, T. F., and Koch, F. C., Physiol. Zool., 10, 101-122. 3 Wolff, E., and Wolff, Em., C. R. Soc. Biol., 123, 1191-1193. 4 Wolff, E., and...

We present the GPU calculation with the common unified device architecture (CUDA) for the Wolff single-cluster algorithm of the Ising model. Proposing an algorithm for a quasi-block synchronization, we realize the Wolff single-cluster Monte Carlo simulation with CUDA. We perform parallel computations for the newly added spins in the growing cluster. As a result, the GPU calculation speed for th...

interaction of pb(ii) ion with modified banana shell (mbs) and banana shell (bs) during adsorption fromaqueous solution were investigated. batch experiments were carried out to investigate the effect of contact time,ph, and idmid ion concentration on adsorption efficiency. the favorable pll for maxim= pb(ii) adsorptionwas at 5.0. for the investigated imoi) concentrations (10-80 mph), maximum ad...

formation of asphaltene deposition during oil production, processing and synthesis is known as a fundamental problem of petroleum reservoir worldwide. asphaltene is a petroleum fraction that can lead to increasing the operating costs in these industries. variations in operational pressure, temperature and fluid composition are generally the significant cause of asphaltene precipitation. in this...