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THE GENERALIZED RIEMANN PROBLEM FOR FIRST ORDER QUASILINEAR HYPERBOLIC SYSTEMS OF CONSERVATION LAWS I
In this paper, we consider a generalized Riemann problem of the first order hyperbolic conservation laws. For the case that excludes the centered wave, we prove that the generalized Riemann problemExpand
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Effects of La/Zn ratios on structural and magnetic properties of Sr1 − xLaxFe12 − yZnyO19 hexagonal ferrites
In this research, the hexagonal ferrite Sr1 − xLaxFe12 − yZnyO19 magnetic powder and magnets were prepared by the solid state reaction method. In order to study the formation of hexaferrite phase,Expand
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Influence of Co content on structural and magnetic properties of Sr0·68La0·32Fe11·7Zn0·30 − xCoxO19 M type hexaferrites
Hexagonal ferrite Sr0·68La0·32Fe11·7Zn0·30 − xCoxO19 (0 ≤ x ≤ 0·30) magnetic powders and magnets have been synthesised by a ceramic process. The phase compositions of the calcined powders wereExpand
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