abstract: no doupt that the scientists paid attention to holy quran since coming off the prophet (pbuh ) and the topic that they placed great care is quranic system and its relationship with miracle that peaked when abd _ alghaher al _ jorjani whome drew from all springs which preceded and called for system idea and philosophized it by his logical approach and conscious thought . therefore this...

In this work we study linear Maxwell equations with time- and space-dependent matrix-valued permittivity permeability on domains a perfectly conducting boundary. This leads to an initial boundary value problem for first-order hyperbolic system characteristic We prove priori estimates solutions in H m . Moreover, show the existence of unique -solution if coefficients data are sufficiently regula...

      In order to prepare polyurethane elastomers with acceptable physical properties and good biocompatibility, novel polyurethane networks were synthesized via curing reaction of epoxy-terminated polyurethane prepolymers (EUPs) with hexamethylene diamine. EUPs were prepared from reaction of glycidol with NCO-terminated polyurethanes (ITPs). ITPs were also synthesized from reaction of one equi...