نتایج جستجو برای: non destructive method

تعداد نتایج: 2783595  

Journal: :international journal of advanced design and manufacturing technology 0
abbas habibalahi m. s. safizadeh

stress and residual stress are the main problems in the operating performance of materials. they are the principal causes of material failure and can affect life time of component. however measurement or predictions of them are typically difficult. two common non-destructive methods, x-ray diffraction and ultrasound are not reliable methods for subsurface residual stress measurements and destru...

Journal: :IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY 2020

Journal: :Irish Journal of Agricultural and Food Research 2015

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ولی عصر (عج) - رفسنجان - دانشکده ادبیات و علوم انسانی 1393

the present study investigated construct equivalence of multiple choice (mc) and constructed response (cr) item types across stem and content equivalent mc and cr items (item type ‘a’), non-stem-equivalent but content equivalent mc and cr items (item type ‘b’), and non-stem and non-content equivalent mc and cr items (item type ‘c’). one hundred seventy english-major undergraduates completed mc ...

Journal: :St. Petersburg Polytechnical University Journal: Physics and Mathematics 2017

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