نتایج جستجو برای: high frequency waves

تعداد نتایج: 2472212  

Journal: :Sustainability 2023

The advancement of efficient carbon capture technology is vital for the transition to a net-zero future. Critical developments in ultrasonic irradiation can be used enhance conventional CO2 absorption process. For example, sonophysical effects such as acoustic streaming, cavitation, fountain and atomization induced by propagation high-frequency waves liquid medium mixing create larger interfaci...

Journal: :ماشین های کشاورزی 0
رسول معمار دستجردی سعید مینایی محمدهادی خوش تقاضا

non-destructive ultrasonic testing is one of the methods utilized to evaluate quality of agricultural produce. transducers used in this method are made for basically industrial applications. since ultrasonic attenuation of waves in agricultural produce is very high, industrial transducers cannot be used in agriculture and needs to be modified. this is done with horns that concentrate energy on ...

Journal: :علوم و تکنولوژی پلیمر 0
مجید حقگو ناصر محمدی مهدی احمدی فرهاد فقیهی معصومه پازوکی

utilizing polymeric materials for damping mechanical waves is of great importance in various fields of applications such as military camouflage, prevention of structural vibrational energy transfer, and noise attenuation. this ability originates from segmental dynamics of chain-like polymer molecules. damping properties of styrene-butadiene rubbercontaining 10 wt% of monosize polystyrene partic...

Journal: :Transactions of the Korean Society for Noise and Vibration Engineering 2010

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