As a communication vehicle among stakeholders, software architecture gives the entire view of the system’s major components, the behaviour of those components as visible to the rest of the system, and the ways in which these components interact and coordinate to achieve the system’s goal. The architecture determines the non-functional attributes of software systems that are built into quality m...

Blood pressure regulation by the cardiovascular system is a complex physiological process. Cardiovascular modeling can offer a valuable insight often beyond the reach of experiments. In this study we provide a new mathematical model of the afferent component of the baroreflex feedback system. The model takes advantage of the so-called quasi-linear viscoelastic theory, which has been widely used...

The simulation and optimization of an actual physics system are usually constructed based on the stochastic models, which have both qualitative and quantitative characteristics inherently.Mostmodeling specifications and frameworks find it difficult to describe the qualitative model directly. In order to deal with the expert knowledge, uncertain reasoning, and other qualitative information, a qu...

The Competencies of High School Principals in District Four of Mashhad H. Ekrami, M.A. V. Hoshyar, Ph.D. The present study was conducted to identify the competencies of high school principals, propose a competency model, and validate the model. The research was carried out in district four of Mashhad in 2015 and examined two questions: 1.What are the dimensions and components o...

the concept of business model has attracted increasing attention in recent years. specifically, growing number of internet providers on mobile phones are challenged by the selection of appropriate business model. considering the importance of a good business model in the firm’s success, this research investigates the business models selection process of internet providers on mobile phones in ir...

the multi-criteria decision making model is an important tool for decision making in water resource management. in this paper, the topsis model was used to rank seven flood management options in the gorganrood river flood management project, including conservation of natural condition, golestan reservoir management, levee construction, diversions-channel construction, flood forecasting and warn...

This study aims to explain and elaborate a new model for the business environmental hostility in small and medium enterprises in the science and technology park in Kermanshah (Iran). The research method is a mixed method. Content analysis was used in the qualitative part, and a confirmatory factor analysis was used in the quantitative section. In the qualitative section for the environmental ho...