In this study, ultrasonic-assisted matrix solid-phase dispersion (UA-MSPD) as a new sample preparation method for natural product analysis was developed. Influential parameters of the UA-MSPD method was optimized using oleuropein content of olive leaves as a model analyte. Main parameters of the proposed technique such as ultrasonic time, amplitude and pulse, sorbent material, the ratio of samp...

Investigation into ultrasonic Non-destructive evaluation (NDE) methods for assessing complex designs depends firmly on displaying apparatuses that calculate dispersion curves. These expectations are vital empowering the best assessment methodologies to be distinguished and their aversions being assessed. This study, main purpose of this work is do a quantitative SAFE technique by calculating cu...

Abstract This paper presents the first report of ultrasonic treatment (UST) assisted casting independent 2D layered hexagonal boron nitride (hBN) reinforced aluminum matrix composites. A linear enhancement nucleation density is obtained with time from 0 to 90 s dispersion hBN platelets by UST. Outstanding grain refinement 72% 375.3 103.6 ?m UST for 90 s. The corresponding nanohardness 709.2 MPa...

The present study aims to investigate the microstructure and mechanical properties of A356 aluminum metal matrix composite reinforced with Y2O3 particles. is synthesized by adding 1 2 vol.% reinforcement via stir casting assisted ultrasonic treatment (UT). Microstructural contemplates show improvement in dispersion nano particles a decrease porosity level due ultrasound aided synthesis. UT refi...

Harnessing surface wrinkle surfaces in various functional devices has been a hot topic. However, rapidly creating wrinkled on elastomers of arbitrary shape (especially curved surfaces) is still great challenge. In this work, an ultrasonic-assisted deposition method proposed to achieve nanomodification the robust layer (e.g., carbon nanotubes (CNTs)) with labyrinth pattern polydimethylsiloxane (...

To evaluate the removal of airborne microbes by air cleaners, a technique for generating airborne fungal spores in the dry state in a test chamber (dry dispersion) become necessary. The Society of Indoor Environment Japan (SIEJ) published SIEJ Standard Method No. 20110001 (SIEJ standard),in which an aerial ultrasonic oscillator was used as the device for dry dispersion. However, a more versatil...

This paper analyses the efficacy of dispersions of nanoparticles of calcium hydroxide for consolidating lime mortars, according to three variables: the type of dispersion (three consolidating compounds—CaLoSil , Nanorestore and Merck —with different-sized calcium hydroxide particles); the concentration of the dispersion (5 and 25 g/L of Ca(OH)2 in isopropyl alcohol); and the state of the sample...