نتایج جستجو برای: seven parameters topography

تعداد نتایج: 773739  

Journal: : 2023

Tribological properties are determinant in the functionality of contacting surfaces machine elements. The wear resistance or load bearing capacity influence lifetime these parts. In this study tribology-related surface topography parameters (Ssk, Sbi) and hardness hard turned analyzed after measurements. Correlation coefficients were calculated for their relationships. It was found that cutting...

پایان نامه :دانشگاه تربیت معلم - سبزوار - دانشکده علوم انسانی و پایه 1393

burnout is a response to the chronic work stress which is prevalent mostly among the people who do people job, like teaching. the purpose of this study was to develop a valid and reliable instrument that can measure burnout in foreign language teachers. although some widely used instruments were developed before which measured burnout in teachers, a specific instrument which include specific sy...

Journal: :international journal of nano dimension 0
p. doodman department of material engineering, science and research branch, islamic azad university, tehran, iran m. a. faghihi-sani department of material engineering, science and research branch, islamic azad university, tehran, iran n. barati 2department of materials science and engineering, sharif university of technology, azadi street, p.o. box 11365-9466, tehran, iran a. afshar 1department of material engineering, science and research branch, islamic azad university, tehran, iran.

nanostructured alumina thin films were coated on stainless steel by sol-gel dip coating method. in order to prevent crack formation, al2o3 films were kept in a solvent bath immediately after coating to reduce the rate of drying. effects of calcination temperature and withdrawal speed on structural properties were analyzed using xrd and sem. topography and thickness of coatings were analyzed by ...

Journal: :The Lancet Global Health 2015

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