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the notion of infinite order markov process is introduced and the markov property of the flow of information is established.

The existence of shift for periodically correlated processes and its boundedness are investigated. Spectral criteria for these non-stationary processes to have such shifts are obtained.

the aim of this research is to simulate oil spill behavior in the persian gulf due to the wind andtidal currents. this is achieved by coding an oil spill mathematical model consisting of several major submodels including hydrodynamic model, oil slick dynamic model and oil weathering model. the base of all of them is eulerian approach and they are coupled together to simulate spill incident in t...

block ramps are hydraulic structures which are commonly used in river restoration projects. especially in the last few decades, the use of this type of structures have become more and more popular. they furnish a correct balance between the hydraulic functioning and the environmental care, as they minimize the impact on the environment in which they are located. in addition, they can be conside...

the methods of assessing the individuals’ performance usually applied in practice are based on principles of the bivalent logic (yes-no). however, fuzzy logic, due to its nature of including multiple values, offers a wider and richer field of resources for this purpose. in this paper we use principles of fuzzy logic in developing a new method for assessing the performance of groups of individua...

Probabilistic properties of Cox processes of relevance for statistical modeling and inference are studied. Particularly, we study the most important classes of Cox processes, including log Gaussian Cox processes, shot noise Cox processes, and permanent Cox processes. We consider moment properties and point process operations such as thinning, displacements, and superpositioning. We also discuss...

background: type 2 diabetes is an important risk factor for cognitive decline in diabetic patients. the main goal of this study was the assessment of memory, attention and visuospatial ability dysfunctions in patients with type 2 diabetes in comparison to pre-diabetic patients and normal subjects in endocrine and metabolism center of isfahan city from april 2011 to july 2011. methods: the sampl...