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 ...

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...

forming limit curves are used as a parameter in finite element analysis to control the material's level of formability. in this research, forming limit diagram (fld) of ss304l sheet was obtained by abaqusfinite element software. in practice, the experimental determination of a forming limit curve is a very time-consuming procedure which requires special and expensive equipment. forming limit di...

experimental determination of solubility and ternary phase diagram of chiral compound are of tedious and time consuming tasks, and in many cases, there is not enough experimental data for different enantiomeric compositions to access the experimental ternary phase diagram. using thermodynamic models with predictive capability, having less dependency on experimental data, affords a great advanta...

Abstract. To maintain and improve the quality of resulting production is to use statistical control. One methods used in control diagram u Decision On Belief (DOB). The chart DOB are attribute diagrams that see if a process statistically controlled or not by looking at points out limits have been determined existing formula. which was first introduced Nezhab (2010) analyze classify state system...

Context. The Hertzsprung-Russell diagram is a key diagnostic diagram for stellar structure and evolution, which is now in use for more than 100 years. Aims. We introduce a new diagram which is based on the gravity-effective temperature diagram, but has various advantages. Methods. Our spectroscopic Hertzsprung-Russell (sHR) diagram shows the inverse of the flux-mean gravity versus the effective...

in recent years, it has become increasingly important to incorporate explicit dynamics in economic analysis. these two tools that mathematicians have developed, differential equations and optimal control theory, are probably the most basic for economists to analyze dynamic problems. in this paper i will consider the linear differential equations on the plane (phase diagram) and elements of nonl...