1-introduction iran is one of the vulnerable countries about earthquake issue in the world which is placed in earthquake- belt prone of himalaya alp. so it is necessary to identify and evaluate dangerous areas because it can prevent of human and financial losses, when environmental crisis occurs. we did a lot of efforts to decrease and minimum results of earthquake and confident to buildings sa...

   The histories of architectural design and town planning are replete with references to creating a better quality of human life. One of the approaches to enhancing human existence is Vāstu Vidyā, the knowledge of design and building from the ancient Vedic tradition. More recently, Vāstu Vidyā has been repurposed to include not only architectural practice and construction but also considered i...

considering concepts such as emphasize on the role of the all stakeholders in urban regeneration, is one of the important and fundamental principles. this is important because in most cases, the private sector, government and municipal are considered more in process of intervention in distressed area and play a key role in this situation. but the role of people is often considered minor. empowe...

Contour Crafting is an emerging technology that uses robotics to construct free form building structures by repeatedly laying down layers of material such as concrete. The Contour Crafting technology scales up automated additive fabrication from building small industrial parts to constructing buildings. Tool path planning and optimization for Contour Crafting benefit the technology by increasin...

basic physical principles of nuclear magnetic resonance imaging (n.m.r.i), a nonionizing medical imaging technique, are described. principles of nmri with other conventional imaging methods, ie, isotope scanning, ultrasonography and radiography have been compared. t1 and t2 and spin density (s.d.) factors and different image construction techniques based on their different combinations is discu...

Molecular semiconductors differ from traditional semiconducting materials (such as Ge, Si, GaAs, etc.) in many regards including their mechanical, electrical, and optical properties, which is a direct consequence of their construction principles. While in traditional semiconductors, the basic building blocks are atoms that are strongly linked together by covalent or ionic bonds, organic semicon...