The mechanism for sublimation of NH(4)N(NO(2))(2) (ADN) has been investigated quantum-mechanically with generalized gradient approximation plane-wave density functional theory calculations; the solid surface is represented by a slab model and the periodic boundary conditions are applied. The calculated lattice constants for the bulk ADN, which were found to consist of NH(4)(+)[ON(O)NNO(2)](-) u...

concepts are considered as the tools of political analysis, and without recognition of the concepts, particularly the concept of state, there is no possibility for us to have knowledge of the world of politics. parallel to the external developments, concepts are also growing fatter and more dynamic in modern age. this development may be explained through two approaches: approach of interpretive...

In alpine terrain, snow sublimation represents an important component of the winter moisture budget, representing a proportion of precipitation which does not contribute to melt. To quantify its amount we analyze the spatial pattern of snow sublimation at the ground, from a canopy and from turbulent suspension during wind-induced snow transport for a high alpine area in the Berchtesgaden Nation...

Do the words “East” and “West” mean more than just geographical orientations or areas? This seems to be a simple question, which cannot be answered easily.The difficulty in answering such a question seems to be rooted in questions that deal with universal concepts. Defining such universal concepts, which seems quite simple, is very difficult indeed - perhaps even impossible in some cases. “E...

iran  budgeting  structure  and concepts  have  changed  since  200 i .these changes  embrace  the  items  such  as  ,   concepts  of revenues  ,   expenses  , capital   assets   as  well   as   financial   assets   ,    which   resulted    in  more information  transparency .   as a results  the government  budget  is  drawn up  as  such  of an  economic   firm's  budget.  structural  ref...