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1
Reading strategies are defined as the intellectual activities which occur when readers reach a text purposely and try to comprehend it. Using qualitative research methods and verbal protocols, this study examines thirty different-level Iranian Chinese as a Foreign Language (CFL) learners’ use of reading strategies and describes how each Chinese learners employs these strategies while reading culturally-relevant text. It also investigates the strategies used by two CFL teachers while teaching culturallyrelevant texts. The finding indicates that different proficiency levels used different kinds of strategies. From beginners to advanced learners, the use of higher order thinking strategies such as connection to the text and inferential thinking strategy is increased while the use of cognitive strategies, i.e. checking in the dictionary as well as note-taking, is decreased. This study also shows that culture-related texts can lead to learners' feeling of engagement and motivation for learning. Comparing the performance of the two teachers, it was found that the university instructor had never used the correction strategy in culture-related reading sessions, while after rhetorical strategies, the correction strategy is the most frequently used strategy that teacher of institute (TI) has used. The results of this study are useful for language learners, language teachers, and material developers.
2
Resonance phenomena in mechanical elements can cause partial or total failure to the system. this phenomena is related to the coincidence of natual and forced frequencies in mechanical parts and the system. If these frequencies stay within the same range, they all cause the system to break in a definite period of time. as an example, consider a bridge cotnaining certain natural feequency, it may also be encountered with external forces due to the wind in which forced frequencies will be created, and there fore the collapse of the bridge because of coincidence of above frequencies. as another example, consider aerodynamic forces exerted upon the aircraft wings (each wing has certain natural frequency) during the flight. crated forced frequencies by the air is then coincided with natural frequency of the wing results a great vibration and consequently the break down of the aircraft... prefae:...methods for finding natural frequeny►natural frequencied in wings and rotor wings►appendix...
