having access to locations struck by natural environmental disasters is one of the chief necessities in urban disaster management. this paper aims to study different physical and semi-physical patterns for increasing access to different districts in a city through applying changes to the present network of routes. to attain this goal, district 6 of tehran municipality was selected for the case ...

data grid is an infrastructure that controls huge amount of data files, and provides intensive computational resources across geographically distributed collaboration. the heterogeneity and geographic dispersion of grid resources and applications place some complex problems such as job scheduling. most existing scheduling algorithms in grids only focus on one kind of grid jobs which can be data...

The data access object (DAO) pattern tries to decouple the access to data from its underlying storage. Persisting data currently relies heavily on the type of database used: Relational database, object-oriented databases, flat files. It would be preferable to chose the type of database used during the deployment phase instead of the design phase. By using data access objects the data is decoupl...

Data Grid is an infrastructure that controls huge amount of data files, and provides intensive computational resources across geographically distributed collaboration. The heterogeneity and geographic dispersion of grid resources and applications place some complex problems such as job scheduling. Most existing scheduling algorithms in Grids only focus on one kind of Grid jobs which can be data...

Various factors affect the degree of mass crime of an environment, including social, economic, and physical factors. The purpose of this research is to investigate the role of the physical components of an environment on mass crime rate. In this regard, open spaces between residential complexes were selected as the case studies and based on five outdoor patterns including linear pattern, disper...

Access Protector is a class behavioral design pattern which distributes the routines of the original class hierarchy to given access-protection layers. The distribution utilizes dynamic binding and automatic upcasting to guarantee that the indended object access policies are transitive while the original runtime behavior between the objects does not change. In more detail, the pattern states ex...