نتایج جستجو برای: focusing method

تعداد نتایج: 1715181  

Journal: :Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 2019

Journal: :Applied sciences 2021

An ultrasonic array device like the A1040 MIRA is used to non-destructively visualize inside of concrete structures. A data set acquired by so unfocused that an image reconstruction algorithm required transform into understandable image. The total focusing method exploits time-of-flight pulse when While a high frequency barely affects accuracy results, low with long wavelength causes overall sa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه لرستان - دانشکده علوم پایه 1389

abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...

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