this thesis attempts to investigate the effects of prelistening activities on enhancing iranian efl learners` listening comprehension. the present study investigated ways in which learners` background knowledge could be activated in order to enhance their l2 listening comprehension by limiting the number of possible text interpretations prior to listening. the experiments conducted in this stud...

nowadays enhancing critical thinking in learners is considered one of the foreign language teachers’ tasks due to its high position in foreign language classrooms. when it comes to selecting materials for language classrooms, there are obviously some criteria that teachers should apply. the present study aimed at a critical thinking based analysis of ten picture story books and ten folktales th...

Every nation has its own ideals that objectifying them is by culture. In the process of this transformation, the architecture and music which come from the culture of each region have a fundamental role. Architecture and music have many similarities in conceptual directions, space, shape and morphology. They also have similarities in the basic and fundamental principles such as proportions, rhy...

After the spread of Islam in its early centuries, Muslims of other regions built mosques according to their vernacular architecture and geographical attributes. Baluchestan of Iran was one of the regions where Islam flourished during the early Islamic centuries, and the locals built their mosques according to their region’s geography, culture, and materials. These mosques have different c...

In the far pasts, Turkey was one of the countries with diverse civilizations. It has been rich and affected by Byzantine architecture of the architectural view point. The entry of Islam into Turkey and the formation of Islamic governments during the Ottoman era led to the formation of a particular type of Islamic architecture in Turkey. The architecture of Turkey mosques is one of the most prom...

‏‎the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...

there are many approaches for solving variety combinatorial optimization problems (np-compelete) that devided to exact solutions and approximate solutions. exact methods can only be used for very small size instances due to their expontional search space. for real-world problems, we have to employ approximate methods such as evolutionary algorithms (eas) that find a near-optimal solution in a r...

in this thesis, barium ferrite nano particles were prepared by sol-gel method. their structural and magnetic properties of samples have been investigated using thermo gravimetric analysis (tg-dta), x-ray powder diffractometer (xrd), fourier transform infrared (ftir), scanning electron microscopy (sem), field emission scanning electron microscopy (fesem), ac susceptometer, vibrating sample magne...

in reality, most structures involved in geotechnical engineering are three dimensional in nature, and although in many, plane strain or axisymmetric approximations are reasonable, there are some, for which 3-d treatment is required. the quantity of data, and the size of the various vectors and matrices involved in such analysis, increase dramatically. this has sever implications for computer r...