Increasing observations are becoming available about a relatively weak, but persistent, non-axisymmetric magnetic field co-existing with the dominant axisymmetric field on the Sun. It indicates that the non-axisymmetric magnetic field plays an important role in the origin of solar activity. A linear non-axisymmetric α − Ω dynamo model is set up to discuss the characteristics of the axisymmetric...

The 1979 religious ideological revolution of Iran brought about a double stance towards the body and its pictorial representations, as to drawing a schism between the physiological and the cultural aspects of the body. Studying this schism is important particularly due to its significance in figuring out the features and functions of what in this article will be called “the ideological body”. B...

the information revolution is one of the important problem that affects many aspects our life. this revolution and it’s technology not only increase the actors in international relations but also creates the new rules and new space. because, this revolution and it’s political effects , the main purpose of this paper is the examination of international relations theories about this problem. so i...

We show that in all dimensions d ≥ 3, there exists an asymmetric convex body of revolution all of whose maximal hyperplane sections have the same volume. This gives the negative answer to the question posed by V. Klee in 1969.

Observations show that solar activity is distributed non-axisymmetrically, concentrating at “preferred longitudes”. This indicates the important role of non-axisymmetric magnetic fields in the origin of solar activity. We investigate the generation of the non-axisymmetric fields and their coupling with axisymmetric solar magnetic field. Our kinematic generation (dynamo) model operating in a sph...

a simple new closed form of the green function for axisymmetric magnetostatic problemsis found analytically in cylindrical coordinates. the result is verified by applying several examples.