In this paper, hydroxyapatite coating was successfully deposited on ZK60 magnesium alloy surface by ultrasound-assisted electrodeposition method, and the macroscopic structure, chemical composition corrosion properties of sample HA were analyzed. The results show that quality is improved ultrasonic power, uniform, smooth compact. XRD FTIR analysis main obtained assisted hydroxyapatite. treatmen...

Ultrasonic-assisted grinding processing can effectively reduce the surface roughness and enhance efficiency in of hard brittle materials. However, most common ultrasonic assisted is a type contact where tool directly contacts workpiece, which means that it necessary to accurately control pre-pressure on workpiece. The will inevitably increase complexity device, easy wear workpiece because impro...

Power ultrasonic-assisted reservoir modification is a promising technique for enhanced coalbed methane recovery. However, the in-site performance of ultrasound-assisted CBM production has not yet been revealed. In current study, in situ antireflection test was conducted with high-power ultrasound ~18 kW underground coal seam, and investigated by measuring borehole drainage gas data field zone, ...

In this study, the effects of three different independent variables (extraction temperature, extraction time, ultrasonic power) on total phenolic content, yield and antioxidant capacity (IC50) value olive leaf extracts Halhalı variety which is originated from South-eastern Anatolia Region were investigated. As a result evaluation made with Box-Behnken Design Model, optimum conditions determined...

Ultrasonic Irradiation (UI) is an emerging technology that used to assist the CO 2 absorption process. Even for slow kinetic solvents without using any chemical promoter, high-frequency UI might enhance mass transfer during For this purpose, it essential study performance of a ultrasonic-assisted system under varied operating conditions. The ultrasonic power considered as one main parameters . ...

Drying is one of the widely used methods of food preservation and it is a sensitive food processing operation due to undesirable changes in the quality of dried product. In this study the effect of osmotic dyhedration and ultrasound pretreatment prior to convective drying on quality properties of apple slices was investigated. Apple slices were pretreated by osmotic dehydration in two concentra...

A method based on the ultrasound-assisted solidification of floating drop microextraction technique was developed for the spectrophotometric and spectrofluorimetric determination of curcumin in turmeric powder. In this work a small volume of an organic solvent was floated on the surface of an aqueous solution. After sonication the organic solvent is solidified and separated. The effect of extra...

Abstract Background Papaya ( Carica papaya Linn.) is well known for its nutritional as medicinal value. Different parts of the plant including leaves have been used therapeutic remedies various diseases. The objective present study to determine impact different extraction methods; microwave-assisted, ultrasonic-assisted and conventional maceration on extract yield, polyphenols, flavonoids compo...