virtual technology can be a useful tool for designing models of healthy urban environments. the resilience and sustainability in any urban environment involves the establishment and maintenance of the health of its citizens. the well-being of youth, the future workforce of every society, is a highly important consideration in the design of cities. cities are only truly sustainable when the work...

stanley g. weinbaum was one of the american science fiction writers of the 1920s and 1930s who anticipated virtual reality early in the development of the genre in the united states. the machine in weinbaum’s science fiction plays a crucial role in the production of virtual space and time. not only does weinbaum’s gadgetry function within the domain of spatial alterity, but they also provide te...

the prominent features of national security in today's world are dimension change and its nature, taking place dramatically and with high speed. in this respect and in comparison to other areas, what is taken place in regard to information technology is more important. havingsecurity in virtual space is an important subject that is recently taken into account in strategic studies. the natu...

fresh water scarcity has become a global problem which needs a serious attempt to find proper solutions for decreasing the pressure on the limited water resources. the exact estimation of crop virtual water would help with choosing crops with high crop and water productivity which lead to both food and water security. thus, in this research, maize virtual water was estimated using hydrus2d base...

Background: In the legal world, a person is not only referred to as a human being. In fact, in the world of law, a person has a more general concept that includes both human and non-human. The aim of this study was to compare real and legal personality with virtual personality from a moral perspective, as one of the important principles of Iranian law. In this regard, by understanding ethics an...

Nowadays, new informational and communicative media, and the rate of their use by individuals have caused deep metamorphoses in the material and non-material dimensions of human lives, and individuals’ mental regulation. The use of these media, especially the Internet and virtual social networks, among Iranian teenagers has unnoticeably increased, and providing numerous facilities and opt...

-  Power system state estimation is a central component in energy management systems of power system. The goal of state estimation is to determine the system status and power flow of transmission lines. This paper presents an advanced state estimation algorithm based on weighted least square (WLS) criteria by introducing virtual meters. For each bus of network, except slack bus, a virtual meter...