flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...

Historic fabric can perform an important role in the development of cities. Urban sustainable regeneration is one of the recent approaches in historic fabric. In this approach, all indicator of sustainable development including economic, social, cultural, management and environmental dimensions have been used in conservation of the historic fabric. All the principles of sustainable development ...

abstract translation has become a cultural act which plays a significant role in human life. with the emergence of functional translation theories, and skopos theory in particular, translation has been considered as a purposeful, interpersonal and intercultural activity which is produced for particular recipients and directed by a specific purpose. this purpose determines the translatio...

in this thesis, a structured hierarchical methodology based on petri nets is used to introduce a task model for a soccer goalkeeper robot. in real or robot soccer, goalkeeper is an important element which has a key role and challenging features in the game. goalkeeper aims at defending goal from scoring goals by opponent team, actually to prevent the goal from the opponent player’s attacks. thi...

Industry is being considered as major economic element in any area. This in turn, is associated with prominent economic variables including production, employment and investment. It performs considerable role regarding environmental and social changes. More specifically, rural industries are responsible for provision of job-opportunities, prevention of rural-urban migrations, increase in econom...

abstract: one of the most visited & important spaces in different countries by tourist are urban areas. the old tehran which major part is located in district 12 is historical showcase of the capital, but, its hiidden cultural attraction is not used as it should be. this thesis occasionally engage in studying the efficacy of correct installation of travel guide boards in welfare & easily acc...

Public spaces are those that embrace a wide range of citizens from child to old, woman and man, and with every religion and race; therefore, public spaces have the potential to strengthen social cohesion, economic development, and the improvement of the quality of collective life. The realization of these issues requires the consideration of the design and visual quality of public spaces so tha...

terms of address as an important linguistics items provide valuable information about the interlocutors, their relationship and their circumstances. this study was done to investigate the change route of persian address terms in the two recent centuries including three historical periods of qajar, pahlavi and after the islamic revolution. data were extracted from a corpus consisting 24 novels w...

this study was conducted to investigate the impact of podcasts as a learning and teaching tool on iranian efl learners’ motivation for listening as well as on their listening comprehension ability. the study also investigated the learners’ perception towards listening to podcasts and examined whether the learners were likely to accept podcasts. out of fifty-five intermediate learners studying e...