Chase-escape is a competitive growth process in which red particles spread to adjacent uncolored sites, while blue overtake particles. We introduce the variant die and describe phase diagram for resulting on infinite d-ary trees. A novel connection weighted Catalan numbers makes it possible characterize critical behavior.

Due to the rapid growth of the Web, there is an increasing need for methodologies that support the design of Web-based Information Systems (WIS). After investigating the application of existing hypermedia design methodologies in the context of automated hypermedia presentation design we propose a specification framework for this context. The framework considers the possibility of dynamically ga...

For working with diagrams on a computer screen we need diagram editors, i.e., graphical editors specialized in the specific diagram language. In order to create such a diagram editor in a methodical way, a formal representation of each diagram and of the whole diagram language is required. This paper describes continued work on how to specify a wide range of diagram languages in terms of a hype...

sand and dust storms are natural events that occur widely around the world, mostly in dry and bare lands. over thepast decade a large part of iran has been affected by this phenomenon, and tehran has not been excluded from thisevent. therefore, having knowledge of spatiotemporal frequency variations can aid us in future management andstorm trajectory assessment. in this study the synoptic anemo...

Plan Diagram A visualization of the estimated behavior of a selected plan in the plan diagram, when this specific plan is used throughout the selectivity space. Plan-replacement Diagrams Reduced Plan Diagram Shows the extent to which the original plan diagram may be simplified (by replacing some of the plans with their siblings in the plan diagram) without increasing the cost of any individual ...

In this article the influence of welding parameters such as electrical current, feed rate and stick out on crack growth energy was investigated. Therefore, prepared specimens were welded in various conditions. Using the Minitab software, 18 states of 36 possible states were chosen and applied. Then a crack was crated on the weld metal and the force-displacement diagram was plotted. Comparison o...

introduction the study area is located in the shurab area that is about 50 km southeast of qom. volcanic rocks of the shurab area have basaltic composition that is associated with salt and marl units. igneous rocks of the shurab area have not been comprehensively studied thus far. clinopyroxene composition of volcanic rocks, and especially the phenocrysts show magma chemistry and can help to id...