TY - JOUR TI - From the Guest Editor of Part One: FRACTIONAL CALCULUS TO HEAT, MOMENTUM, AND MASS TRANSFER PROBLEMS AU - Hristov Jordan Y JN - Thermal Science PY - 2012 VL - 16 IS - 2 SP - 7 EP - 9 PT - Article AB - Fractional Calculus is a hot topic encompassing a broad list of problems such new analytical and, numerical technique, efficient solution of complex problems in modelling of transient heat and flow problems. In contrast to the well-known integer counterparts, the fractional derivatives and integrals are not local [1-3] widely encountered in applications to transient rheology [4, 5], heat [6, 7] and mass transfer [8, 9], non-linear diffusion in porous and granular media [10], Stefan problem [11-13] manifest this technique as a power tool for efficient engineering solutions of complex problems.