Numerical Optimization of Non-destructive Ultrasonic Testing in Identifying Defects in Composite Structure of Pine Tree Trunk

According to the properties of the pine tree trunk and its wide range of applications, finding its defects can play a vital role in reducing costs.Since the ultrasonic test is a non-destructive method, this method is an appropriate alternative to find defects in the pine tree trunks.Optimizing the ultrasonic non-destructive test is necessary becaus

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The proved traditional contradictions in "Behar al-Anwar"

Traditions enjoy a high status from different aspects, particularly due to their elucidating role for Quranic teachings.However one of the issues concerning these traditions is the contradictions that is seen between different sets of hadiths.this deficiency is the result of many events in the history of hadith narration of which the following can

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