41 research outputs found

    Critical temperature of a fully anisotropic three-dimensional Ising model

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    The critical temperature of a three-dimensional Ising model on a simple cubic lattice with different coupling strengths along all three spatial directions is calculated via the transfer matrix method and a finite size scaling for L x L oo clusters (L=2 and 3). The results obtained are compared with available calculations. An exact analytical solution is found for the 2 x 2 oo Ising chain with fully anisotropic interactions (arbitrary J_x, J_y and J_z).Comment: 17 pages in tex using preprint.sty for IOP journals, no figure

    Avaliação da hercogamia e sua influência na produção de frutos de maracujá da Caatinga (Passiflora cincinnata Mast.).

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    Com este trabalho, objetivou-se estudar a hercogamia e determinar sua influência na formação de frutos do maracujá da Caatinga

    Produção de maracujazeiros da Embrapa em Pelotas-RS.

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