Results 1 to 10 of about 29,869 (164)
Case Studies in Thermal Engineering, 2023 This work aimed to investigate the effect of ultrasonic waves on heat transfer enhancement under a subcooled pool condition. For this purpose, a cylindrical rod is submerged in distilled water and a 1.7 MHz ultrasonic transducer was utilized to generate ...
Akram H. Abed +2 more
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Internal Cylinder Identification Based on Different Transmission of Longitudinal and Shear Ultrasonic Waves [PDF]
Sensors, 2021 We have built a Fizeau fiber interferometer to investigate the internal cylindrical defects in an aluminum plate based on laser ultrasonic techniques. The ultrasound is excited in the plate by a Q-switched Nd:YAG laser. When the ultrasonic waves interact
Wen-Bei Liu +5 more
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Ultrasonic Assisted Drilling of Carbon Fiber Reinforced Plastic Composites with Non-Rotating Vibratory Tool [PDF]
Mechanics of Advanced Composite Structures, 2022 In recent years, the use of various polymer composites in the aerospace, marine, and automotive industries have expanded due to their low weight and high mechanical strength.
Tohid Jadidi +3 more
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Kinetics of Dissolution of Copper in Liquid Tin With Ultrasonic Waves [PDF]
Materials Research, 2020 Ultrasonic-assisted soldering, as a type of new welding method, is widely used in the field of electronic packaging. This research used the immersion method to study the dissolution behavior of copper in liquid tin and the growth of IMC at 513, 543, and ...
Xuemin Sun +3 more
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Crack Detection of Threaded Steel Rods Based on Ultrasonic Guided Waves
Sensors, 2022 Fatigue cracks are typical damage of threaded steel rods under dynamic loads. This paper presents a study on ultrasonic guided waves-based, fatigue-crack detection of threaded rods.
Kunhong Peng +4 more
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Propagation of Ultrasonic Waves in Liquids [PDF]
Nature, 1958 PREVIOUS measurements of the heat produced by ultrasonic waves in a trap vessel1 gave results that differed from those obtained by other methods2 for the absorption coefficients in carbon disulphide, xylene and kerosene, the last two appear to have abnormally high values, particularly from measurements with narrow trap vessels.
A K, DUTTA, K, SAMAL
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Ultrasonic waves in classical gases [PDF]
Physical Review E, 2017 The velocity and absorption coefficient for the plane sound waves in a classical gas are obtained by solving the Boltzmann kinetic equation, which describes the reaction of the single-particle distribution function to a periodic external field. Within the linear response theory, the nonperturbative dispersion equation valid for all sound frequencies is
Magner, A. G. +2 more
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Energies, 2021 The matrix pores of a coalbed methane (CBM) reservoir are mostly nanoscale pores, with tiny pore throats and poor connectivity, which belong to the category of low–permeability gas reservoirs. The matrix particles and organic pore surfaces adsorb a large
Xin Li +12 more
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Journal of Fundamental and Applied Sciences, 2015 Ultrasonic waves are used extensively in nondestructive testing both for characterization of material properties, in this paper, we describe a fiber optic sensor suitable for detection of ultrasonic waves. This sensor is based on an extrinsic fiber optic
S. Benhamida, F. Rehouma
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Non-contact Ultrasound Method of Thread Tension Determination for Light Industry Machinery
Қарағанды университетінің хабаршысы. Физика сериясы, 2021 It has been established that with the help of a pulsed ultrasonic signal of complex shape, it is possible to determine the tension of a filament with a high linear density in a special waveguide with a rectangular crosssection.
В.Г. Здоренко +3 more
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