in this paper by using the data related to the monthly precipitation of 13 stations situated in west azerbaijan province of iran in a time period of 34 years, monitoring and forecasting the probability of a drought occurrence is evaluated in next coming months. in this process, first the monthly precipitation amounts for each rainfall station are used in order to calculate the standardized prec...

bubble column reactors are used in a wide variety of applications such as multiphase bioreactors, catalytic slurry reactors, and absorption processes. the superficial gas velocity-gas holdup relationship and transition point are two important parameters for characterizing the hydrodynamics of a bubble column reactor. in this study, systematic investigation of a nitrogen - water - glass beads bu...

the history of politic is the history of the efforts of individuals or groups of individuals to accumulate, exercise, and distribute power. indeed politics might be viewed as bounded conflict, as a means of manage conflict such that it does not deteriorate into private feuding or mob violence. we all used the word power often. we all have an intuitive understanding of the term, which is (usuall...

background: the infants, hospitalized in the neonatal intensive care unit (nicu), engage with problems from admission to discharge, exploring of which ensures their safe transition. the purpose of this study was to identify the factors that influence infant’s transition from the nicu to home. materials and methods: a qualitative study was used for identifying the factors that affect infant’s tr...

Magnetic and superconducting ground states can compete, cooperate and coexist. MnP provides a compelling and potentially generalizable example of a material where superconductivity and magnetism may be intertwined. Using a synchrotron-based non-resonant X-ray magnetic diffraction technique, we reveal a spiral spin order in MnP and trace its pressure evolution towards superconducting order via m...

This note presents the explicit form of the Laplace transform of the state transition matrix in the case of a system matrix being a companion matrix. Starting from this special case, we show how to compute the Laplace transform of the state transition matrix for any system matrix.1

in a finite stationary markov chain, transition probabilities may depend on some explanatoryvariables. a similar problem has been considered here. the corresponding posteriors are derived andinferences are done using these posteriors. finally, the procedure is illustrated with a real example.