in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...

in this project, some new polyaspartimides, (pas)s, have been synthesized form michael addition reaction between new synthetic bismaleimide (bmi) and some aromatic diamines. a characteristic property of this polyaspartimides is a pendent carboxylic group, which introduced to these polymers from new bismaleimide. bismaleimides (bmi) is one of the interesting compounds, which can be self-polymeri...

the current study aimed at investigating the relationship between motivation and test preparation strategies (tpss) used by iranian pre-university students in their preparation period for the university entrance exam (uee). due to the importance of uee in iran, this study also attempted to show its impact on these two important variables. to this end, 100 pre-university students in an iranian p...

Objective: Recently, whole body vibration exercise has been developed as a new modality in the field of physiotherapy. It has been suggested that this exercise increases muscle power and strength and improves muscular performance. This study was performed to investigate the short term effects of the vibration training on the maximal push up in non-athlete female students. Materials and Metho...

Introduction: Air pollution is one of the hazardous factors on human health and the environment. In the zinc production industry, because of process nature and using electrolysis pools, the amount of production and diffusion of some of the harmful pollutants such as acidic vapors is exceedingly high. This study aimed to assess the effectiveness of push-pull ventilation system implemented for co...

iv abstract this study examined the linguistic behaviors of two iranian efl teachers each of them teaching learners of two similar proficiency levels, a beginner level and an intermediate level, to investigate the relationship between the learners proficiency levels and the amounts and purposes for l1 use by the two teachers. the study was carried out to investigate whether there were differe...