high pressure ultrasonic

High-pressure ultrasonic-assisted extraction of polysaccharides …

In this study, high-pressure ultrasonic-assisted extraction (HUE) technology was used for polysaccharide extraction from Hovenia dulcis (HDPS). A maximal extraction yield (11.81 ± 0.26%) was obtained using the response surface method (RSM) with optimized HUE conditions (Ultrasound power 330 W, 68 °C …

Application of High-Intensity Ultrasound to Improve Food …

High-power ultrasound can be used as a tool for the extraction of essential components. A Sono-Soxhlet system consists of an ultrasonic probe immersed directly into the extraction chamber. ... Furthermore, the study found that ultrasonic devices were more energy-efficient than high-pressure homogenizers (HPH) because sonication could …

Extraction of natural products using supercritical …

In this context, this work presents a comprehensive review and current insights into the use of high-pressure systems, specifically supercritical fluid extraction …

Elasticity, mechanical and thermal properties of …

Abstract. Compressional ( VP) and shear ( VS) wave velocities of high pressure ( P) and temperature ( T) sintered submicron hexagonal aluminum nitride ( h …

Effects of high-pressure homogenization and ultrasonic …

Compared high-pressure homogenization, the impact of ultrasound on casein solubility was a little inferior. There was a trifling droop in solubility about 0.16% at 200 W. Reversely, it rose at other power treatments, of …

Calibration based on a primary pressure scale in a multi …

A key question to all high-pressure research arises from the reliability of pressure standards. There is some indication and discussion of an uncertainty of 10–20% for higher pressures in all standards.Independent and simultaneous investigation of the dynamical (ultrasonic interferometry of elastic wave velocities) and static (XRD …

Ultrasound elasticity of diamond at gigapascal …

The latest high-pressure, elasticity experiment of diamond, as far as we have investigated, was by McSkimin and Andreatch 40 y ago, who measured the ultrasonic wave velocities up to ∼0.14 GPa ( 12) and …

Homogenizers

During the low-pressure cycle, high-intensity ultrasonic waves produce small vacuum bubbles in the liquid. During the high-pressure cycle, small vacuum bubbles collapse destructively. This phenomenon is called cavitation. Implosion of cavitation bubbles may also generate liquid jets with a high speed of up to 280 m/s, resulting in powerful ...

Acoustic velocities, elasticity, and pressure-induced elastic …

The compressional (P) and shear (S) wave velocities at high pressure were measured using ultrasonic interferometry in conjunction with in situ X-ray diffraction and X-radiography techniques in a DIA-type multi-anvil high-pressure apparatus at X17B2 of the National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory, …

Application of high-pressure and ultrasound

Application of non-thermal technologies, such as high-pressure and ultrasound technologies to legume proteins significantly improved their structure, functionality, and other encapsulation properties to better encapsulate the bioactive core materials. The designed novel foods using microencapsulated bioactive compounds with …

Thermal expansivity and high-pressure sound …

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    High-pressure ultrasonic-assisted extraction of …

    WebOf the modified extraction procedures, high-pressure ultrasonic-assisted extraction (HUAE), a technique that couples high-pressure- and ultrasonic-assisted …

    • High-Pressure Sound Velocity Measurements of …

    High-Pressure Sound Velocity Measurements of Liquids Using In Situ Ultrasonic Techniques in a Multianvil Apparatus. Full Record. References (33) Related …

    Optimization of High-Pressure Ultrasonic-Assisted …

    The high pressure that promotes ultrasonic cavitation also creates shear forces that break cell walls mechanically. The cavitation bubbles from the increased pressure causes the solvent to penetrate deeper into the raw plant material/intracellular space [ 34, 45 ].

    Effects of High-Temperature, High-Pressure, and Ultrasonic …

    All five capacities were increased after high-temperature and high-pressure, and ultrasonic treatment, the increases may be due to the disruption of the dietary fiber structure by the strong forces such as the shear force generated by the mechanical shock during the ultrasonic treatment. During the treatment, the meshed structure of the …

    Effects of ultra-high pressure enzyme extraction on …

    An efficient ultra-high pressure (UP) compound enzyme extraction (UPEE) technology was used to extract and modify polysaccharides (U-RPPPs) from red Pitaya (Hylocereus polyrhizus) peels (RPPs), contributing to the increase yield and antioxidant activity as well as improvement of polysaccharides' physicochemical and functional …

    Minerals | Free Full-Text | High-Pressure Sound …

    High-Pressure Sound Velocity Measurements of Liquids Using In Situ Ultrasonic Techniques in a Multianvil Apparatus. by. Zhicheng Jing. 1,2,*, Tony Yu. 3, Man Xu. 2, Julien Chantel. 2,4 and. Yanbin Wang. …

    Ultrasound Physics and Instrumentation

    Primary Ultrasound Physics Principles. The crucial physics principles needed to understand and optimize clinical ultrasound include frequency, propagation speed, pulsed ultrasound, waves' interaction with tissue, angle of incidence, and attenuation. [3] Sound is mechanical energy that moves via alternating high and low …

    Hot Pressing of Polycrystals of High-pressure Phases of

    Rigden, S. M., Gwanmesia, G. D., Jackson, I., and Liebermann, R. C, Progress in high-pressure ultrasonic interferometry, the pressure dependence of elasticity of Mg 2 SiO 4 polymorphs and constraints on the composition of the transition zone of the earth's mantle.

    Optimisation of high-pressure ultrasonic-assisted extraction …

    High-pressure ultrasound-assisted extraction was used to extract polysaccharides from the Ligusticum chuanxiong rhizomes. Three independent variables, namely, extraction temperature (X1), ultrasonic power (X2) and extraction time (X3) were investigated. Response surface methodology was performed based on the results of single-factor tests.

    Ultrasonic gas meter manufacturer | RMG Messtechnik

    The Exd sensor from RMG consists of fully encapsulated piezoelectric crystals in a dirt-resistant titanium housing. The sensor operates at standard frequencies of 120 or 200 kHz. The temperature range goes from -40°C to +80°C (-40°F to 176°F) and the pressure range from 1 bar to 300 bar (14.5 psi to 4351 psi).

    Ultrasonic disruption extraction, characterization and bioactivities …

    Recently, some novel techniques have been developed to extract polysaccharide, such as ultrasonic-assisted extraction [9], high-pressure ultrasonic-assisted extraction [10], microwave-assisted extraction [11], enzyme-assisted extraction [12], ultrahigh pressure extraction [13].

    Extraction of natural products using supercritical …

    In this context, this work presents a comprehensive review and current insights into the use of high-pressure systems, specifically supercritical fluid extraction and …

    Experimental study of covalent Cr3C2 with high ionicity: …

    The sound velocities, elasticity, and mechanical properties of the polycrystalline Cr 3 C 2 sample were determined by in-situ high-pressure ultrasonic interferometry measurement up to 15 GPa. A 10° Y-cut LiNbO 3 transducer and 14/8 cell assembly ( Fig. 1 (a)) were used for high-pressure ultrasonic interferometry [22] .

    Full waveform analysis for high pressure ultrasonic …

    Ultrasonic methods combined with a multi-anvil apparatus are often used to measure elastic wave velocity under high-pressure. 1 In this type of experiment, a cubic symmetry or Kawai-type high-pressure device, installed in a synchrotron x-ray radiation …

    Ultrasonic flowmeters | KROHNE Group

    Ultrasonic flowmeter for high pressure liquids. 2-path meter for flow measurement of condensate, high pressure feedwater, spray water or …

    (PDF) AlScN Film Based Piezoelectric Micromechanical Ultrasonic …

    The proposed PMUT array can generate a sound pressure level (SPL) as high as 120 dB at a distance of 10 cm without beam forming. ... piezoelectric materials to generate high-pressure ultrasonic ...

    (PDF) Effects of Composition, Pressure, and Temperature

    The comparison of the low- and high-pressure ultrasonic and Brillouin VP and VS in two glasses (1.3 and 9.4 wt% TiO2) shows excellent agreement, defining the reversible elastic behavior at low ...

    2. High-Pressure Ultrasonic and Dilatometric Measurements

    The high-pressure piston and die system with the polyethylene sleeve used as fluid container are shown in figure 1. Ultrasonic transit time measurements are made with the transducer cemented to the rear of the back plate. The advance of the piston into the cylinder is monitored with two dial indicators.

    High-Pressure Sound Velocity Measurements of Liquids …

    @article{osti_1599421, title = {High-Pressure Sound Velocity Measurements of Liquids Using In Situ Ultrasonic Techniques in a Multianvil Apparatus}, author = {Jing, Zhicheng and Yu, Tony and Xu, Man and Chantel, Julien and Wang, Yanbin}, abstractNote = {Sound velocity and equation of state of liquids provide important constraints on the …

    High pressure elasticity and thermal properties of depleted uranium

    We have performed the first high pressure ultrasonic study of depleted uranium metal with pressure. This study has covered the pressure range up to 4.6 GPa and has resulted in combined X-ray radiographic and diffractive and ultrasonic interferometric measurements of the sample. From this, an X-ray pressure–volume curve …