Cerca risorse accademiche

Abstract Pinhole corrosion is difficult to discover through conventional ultrasonic guided waves inspection, particularly for micro-sized pinholes less than 1 mm in diameter. This study proposes a new micro-sized pinhole...

Vibrothermogrphy is a promising non-destructive technique that uses ultrasonic elastic waves to detect damages and is typically applied in the aerospace and automotive industries. This technique allows for defect selecti...

Rice is one of the staple foods of the Indonesian population and has an important role in the formation of the Gross Domestic Product (GDP). However, this role has not been able to run well because many pests attack and ...

Abstract The scattered fields of plane waves in a solid from a cylinder or sphere are critical in determining its acoustic characteristics as well as in engineering applications. This paper investigates the scattered fie...

The present study investigated the effect of the direct ultrasonic waves, as an immune stimulator, against infection with giardiasis caused by Giardia lamblia in Norwegian rat, Rattus norvegicus. The pathological changes...

Abstract Ultrasonic testing (UT) is increasingly combined with machine learning (ML) techniques for intelligently identifying damage. Extracting significant features from UT data is essential for efficient defect charact...

The present paper reports the elastic, mechanical and thermophysical properties of silver nanowire (Ag NW) using ultrasonic techniques at temperature dependent. Higher order elastic constants are calculated using Coulomb...

In the current study, we used higher order elastic coefficients to compute the elastic, mechanical and thermo-physical characteristics of HfN/MgO (001) nanostructured materials at temperatures between 50 and 300 K. Two s...

Abstract The shallow subsurface defects are difficult to be identified and quantified by ultrasonic time-of-flight diffraction (TOFD) due to the low resolution induced by pulse width and beam spreading. In this paper, Sp...

Abstract Partial discharges can occur in different types of electric equipment and cause progressive insulation deterioration, so there is interest in monitoring partial discharges for assessing the state of the isolatio...

Abstract In this study investigated the impact of various extraction methods on the phenolic content and antioxidant capacity of Aronia melanocarpa L. . Convantional extraction and ultrasonication were applied using diff...

Abstract A diffuse acoustic field has been increasingly used to infer temporal changes in the structures, such as early dislocations and microcracking. This study explores three different techniques to characterise acous...

Latar Belakang. Gelombang Untrasonik telah digunakan untuk terapi dan diagnosis, di klinik kedokteran gigi popular digunakan untuk ultrasonik skaler. Efek termal dan nontermal gelombang ultrasonik dapat mempengaruhi ling...

The paper presents experimental values of lateral and extension transmission ultrasonic waves speed and their absorbance coefficient obtained with the help of discrete immersed method in metal filled polymer auxetic samp...

OBJETIVO: avaliar o efeito da exposição de ratas ao ultra-som terapêutico na fase de pré-implantação. MÉTODOS: ratas Wistar prenhes foram expostas, na fase de pré-implantação, ao ultra-som de 3 MHz, 0,6 W/cm²,...

The coherent manipulation of acoustic waves on the nanoscale usually requires multilayers with thicknesses and interface roughness defined down to the atomic monolayer. This results in expensive devices with predetermine...

Abstract Most of traditional traveling wave piezoelectric transducers are driven by two phase different excitation signals, leading to a complex control system and seriously limiting their applications in industry. To ov...

According to the experimental values of the propagation velocities of longitudinal and transverse ultrasonic waves, the Poisson's ratio of polyurethane systems filled with metal particles was determined. For such systems...