dust particles have dangerous impacts on human health, the environment, and the economy. recently dust storms, originating from arabian countries, have increased remarkably, affecting western and central parts of iran.hysplit model and the mean monthly maps of aai (absorbing aerosol index), surface skin temperature, and top soil layer moisture from omi (ozone measurement instrument) have been u...

We characterize Banach spaces with polynomial numerical index 1 when they have the Radon-Nikod´ym property. The holomorphic numerical index is introduced and the characterization of the Banach space with holomorphic numerical index 1 is obtained when it has the Radon-Nikod´ym property.

‎in this paper a new family of fifteenth-order methods with high efficiency index is presented‎. this family include four evaluations of the function and one evaluation of its first derivative per iteration.‎ ‎therefore‎, ‎this family of methods has the efficiency index which equals 1.71877‎. ‎in order to show the applicability and validity of the class‎, ‎some numerical examples are discussed‎.