this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...

boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...

The phenomenon of global warming provoked green approach among top managers. Environmental problems caused by human activities have stimulated measures to prevent further damages to the environment; the green approach is among the most important ones. Today, the importance of green management, apart from its benefits in preserving and protecting the environment, is considered as a competitive a...

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...

The advent of digital implements and techniques in the modern world, has changed the quality of the human life and also has influenced the traditional art of the nations. The traditional design as the most important step which the artistic creation take place in, has been affected by these evolutions and specially the arts like carpet are being influenced the most. Due to the two decades passin...