Ethylbenzene (EB) dehydrogenation to styrene (SM) on an industrial scale is generally performed using classic and SMART (Styrene Monomer Advanced Reheat Technology) technologies. In the current study, spent catalysts structural changes through classic and SMART technologies were investigated and compared with the fresh catalyst. For this purpose, XRF, XRD, SEM-EDX, FT-IR, BET and crushing s...

consumption of organic manures such as vermicompost and spent mushroom compost in a system based on organic agriculture beside to maintenance soil health improvement and yield of medicinal plant spearmint. therefore, an completely randomized design experiment with four replication on spearmint (mentha spicata l )was conducted in horticultural department of mohaghegh ardabili university. experim...

b a c k ground: several studies have indicated that executive dysfunction is the main neuropsychological feature of parkinson’s disease (pd). the frontal assessment battery (fab) is a short tool for the assessment of executive functions. p u r p o s e : the aim of this study was to determine the relationship between persian version of fab scores and age, education, mini-mental state examination...

the use of renewable energy in power generation and sudden changes in load and fault in power transmission lines  may cause a voltage drop in the system and challenge the reliability of the system. one way to compensate the changing nature of renewable energies in the short term without the need to disconnect loads or turn on other plants, is the use of renewable energy storage. the use of ener...

background: ingestion of foreign bodies may result in the formation of a tracheoesophageal fistula (tef), which causes severe morbidity in children. we describe four cases of tef, who underwent emergent surgery for repair. case presentation: in this report, we present about four patients aged between 9 months to 2.5 years, who referred due to disc battery ingestion. there were two boys and two ...