Simulation and experimental research on ultrasonic vibration high
Ultrasonic vibration rock crushing technology is a new type of rock crushing method, and it can be used in hard rock drilling. By applying high-frequency …Web
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Ultrasonic vibration rock crushing technology is a new type of rock crushing method, and it can be used in hard rock drilling. By applying high-frequency …Web
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Therefore, in order to further test the anti-ultrasonic crushing ability of 2–3 mm granules and explore the impacts of sludge concentration on ultrasonic crushing effects, the changes of granulation rates after ultrasonic crushing with different concentrations of granules at 10 W were investigated. Taking 20, 30, 40, 50, 60, 80, 90 …Web
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Here, an effective method has been provided to fabricate BiInSn alloy powder based on ultrasonic crushing in combination with the dispersant solution.Web
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@article{osti_22742092, title = {Recycling of indium from waste LCD: A promising non-crushing leaching with the aid of ultrasonic wave}, author = {Zhang, Kaihua and Li, Bin and Wu, Yufeng and Wang, Wei and Li, Rubing and Zhang, Yi-Nan and Zuo, Tieyong}, abstractNote = {Highlights: • Indium is leached with the non-crushing method …Web
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Purpose Intracorporeal lithotripsy is becoming the most commonly used surgical method of stone treatment in Urology. The five major types of intracorporeal lithotripters are ultrasonic, ballistic, and combination lithotripters as well as laser and electrohydraulic lithotripters. The advantages and disadvantages of choosing each of …Web
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A novel ultrasonic crushing method for accurate detection of viable spore counts in Paenibacillus polymyxa-based microbial pesticides is superior to the conventional method of Shaker shaking Jiacai Guo State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, People's Republic of China View ...Web
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A saturated Bleurswiller sandstone, of 25% porosity, was compacted by increasing the confining pressure over the critical pressure P* which characterizes the onset of pore collapse and grain crushing. The frequency-dependence of Young's moduli were measured before and after the compaction using forced-oscillation method in a triaxial …Web
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Enzyme lysis and ultrasonic crushing were used for the successful extraction of tumor cell membrane according to Han's research . FeNx@GOx and cell membrane with mass ratio of 1:1 was added in an EP tube for 30-min ultrasonic crushing on ice . Blow the solution gently every 5 min for homogeneous dispersion.Web
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Ultrasonic cutting for surgical applications. M. Lucas, A. Mathieson, in Power Ultrasonics, 2015 23.3 Developments in ultrasound for bone cutting and other surgical applications. By the mid-1990s ultrasonic cutting was routinely used in diverse industrial applications ranging from textile cutting to food cutting (Rawson, 1998), yet it still had limited use in …Web
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Lithotripsy is a noninvasive (the skin is not pierced) procedure used to treat kidney stones that are too large to pass through the urinary tract. Lithotripsy treats kidney stones by sending focused ultrasonic energy or shock waves directly to the stone first located with fluoroscopy (a type of X-ray "movie") or ultrasound (high frequency ...Web
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Compared to traditional cutting methods, Branson ultrasonic systems provide superior performance across the board, particularly with issues of waste, presentation, processing speed, cleaning and downtime. ... with no deformity or crushing, clean-ups and can be cleaned as well as breads or bagels with in place, decreasing cleaning hard crusts ...Web
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Ultrasonic wave propagation measurement has been used as a suitable technique for studying the granular materials and investigating the soil fabric structure, …Web
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In other attempts, variations in ultrasonic wave velocity were related to pore collapse and grain crushing in sand and sandstone materials [46], [47], [48]. These experimental works related the observed rate of variations in shear and compressional wave velocities during compression to (a) particle crushing and (b) porosity reduction [48].Web
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The processing parameters, including ultrasound amplitudes at 20%, 40% and 60% of the maximum amplitudes that can be delivered by the sonicator, which correspond to ultrasound intensities of 10, 24 and W/cm 2, respectively, as determined by calorimetrical analysis (Wu et al., 2008), sonication time (5 to 30 min), temperature (5 to …Web
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In this section, we aim at identifying the link between ultrasonic measurements and amount of grain crushing under different levels of normal stresses. Particle crushing is identified as one of the most critical mechanisms responsible for changes in mechanical …Web
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Here, an effective method has been provided to fabricate BiInSn alloy powder based on ultrasonic crushing in combination with the dispersant solution. The effects of …Web
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By reviewing the developmental history of ultrasonic-assisted crushing technology, this paper expounds the technical characteristics and evolution of ultrasonic-assisted crushing and the …Web
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Detailed ultrasonic cell disruption mechanism over the microalgal species. At low ultrasonic frequencies, mechanical effects, i.e. high shear forces mainly lead to the direct rupture of cells. At high ultrasonic frequencies, chemical attacks from free radicals also contributed to the weakness of cell walls. 2.5.1.Web
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decades, the mechanism of using ultrasonic waves on rock mechanics is becoming clearer, and using ultrasonic waves for rock breakage is becoming a promising option. 3.1. Mechanisms of Ultrasonic Action on Rock Mass Ultrasound is a sound wave with frequency higher than 20 kHz, and is in the form of mechanical vibration and energy …Web
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The mechanism of ultrasonic mixed crushing in powder producing is the micro-shock-wave theory of ultrasonic cavitation. The micro-shock-wave in ultrasonic cavitation could form a large number of small metal particles during the ultrasonic mixed crushing process. Besides, the dispersants are effective in. Declaration of Competing …Web
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Secondary ultrasonic crushing can be subjected to a stream of liquid droplets formed by any method, as well as a jet of solid liquid, fed into a region with a powerful ultrasonic field under pressure. The mechanisms of ultrasonic dispersion of …Web
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After ultrasonic crushing, GO suspension with concentration of 0.1 mg mL −1 was obtained. Secondly, put 10.0 mL GO solution and 10.0 mg ascorbic acid (AA) in the same clean beaker, and the RGO solution was obtained after stirring in a constant temperature agitator for 12 h. Thirdly, 2.0 mg chitosan and 100.0 mL1% acetic acid …Web
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The mechanism of ultrasonic mixed crushing in powder producing is the micro-shock-wave theory of ultrasonic cavitation. The micro-shock-wave in ultrasonic cavitation could form a large number of small metal particles during the ultrasonic mixed crushing process. Besides, the dispersants are effective in keeping the particles …Web
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Clamp crushing and ultrasonic dissection are currently the two most popular techniques of liver transection. The role of new instruments such as ultrasonic shear and RFA devices in liver transection remains unclear, with few data available in the literature. The role of the Pringle maneuver seems to be decreasing with improved transection ...Web
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Enzyme lysis and ultrasonic crushing were used for the successful extraction of tumor cell membrane according to Han's research . FeNx@GOx and cell …Web
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@article{Guo2023ANU, title={A novel ultrasonic crushing method for accurate detection of viable spore counts in Paenibacillus polymyxa-based microbial pesticides is superior to the conventional method of Shaker shaking}, author={Jiacai Guo and Jie Ling and Kaikai Zhang and Fei Fan and Wei-liang Wang and Yuanchan Luo and …Web
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The supernatants, filtered supernatants, solid and liquid bacterial precipitation after ultrasonic crushing from B. subtilis, E. coli, S. thermophilus, L. plantarum, and S. cerevisiae were prepared and exposed to 10 8 CFU/ml spores of B. subtilis strain 168 at 37°C. Then, the levels of DPA release were determined, and the ratio of DPA release ...Web
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1. Introduction. The development of sustainable pathways for substituting petroleum-based fuels and products is now a global priority to simultaneously combat the energy crisis, pollution, and climate change (Khoshnevisan et al., 2021).Consequently, the restrictions surrounding carbon dioxide emissions have caused many countries to have …Web
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Burst wave lithotripsy produced consistent, small passable fragments through transcutaneous applications in a porcine model, while producing minimal injury and clinical trials are now underway. A more efficient ultrasonic propulsion design that can also deliver burst wave lithotripsy effectively repositioned 95% of stones in 18 human subjects ...Web
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Ultrasonic vibration rock crushing technology is a new type of rock crushing method, and it can be used in hard rock drilling. By applying high-frequency cyclic load to the rock, it promotes the expansion and penetration of micro-cracks inside the rock, causing fatigue damage, reducing the rock strength, and thus improving the rock crushing ...Web
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Ultrasonic crushing (crushing, mixing, emulsification) principle. Mar 25, 2022. Ultrasonic grinding mill is to convert the electrical energy through the transducer ultrasonic generator sound energy, powder mixed with liquid through this kind of energy efficient and liquid medium and become one of the intensive small bubbles, by ultrasonic high ...Web
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Ultrasound methods are widely applied in food processing, such as extraction, defoaming, enzyme inactivation, and ... After crushing, 25-mesh defatted walnut powders were collected, which were then stored in valve bags at −20 °C until use. Sodium dodecyl sulfate (SDS), 5,5′-dithiobis (2-nitrobenzoic acid) (DTNB), tris, anilino-8 ...Web
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Importantly, the ultrasonic duration and ultrasonic crushing power with high intensity frequency mainly have an important influence on the aspect ratio of CNCs, increasing ultrasonic duration and ultrasonic crushing power can lead to decreasing the aspect ratio of CNCs and more twisted nanorod bundles appear, which increases the …Web
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This chapter deals with the application of power ultrasound in the mining industry. The uses of power ultrasound are addressed in three aspects: (1) determination of the stress state of rock mass for safety reasons and to plan mining work; (2) ultrasound with mineral grinding, for energy efficiency and wear improvement; and (3) the uses of …Web
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Abstract With continuous increase of mineral resource exploration depth and high-density development of underground space, and in view of problems such as low efficiency, high cost and large energy consumption in conventional hard rock crushing manners, higher requirements have been proposed for rock crushing techniques for the …Web
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The effects of ultrasonic-assisted extraction (UAE, 200 W, 20 min) on the yield and physicochemical properties of different walnut proteins (WNPs, including …Web
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To prevent excessive heating, ultrasonic treatment is applied in multiple short bursts to a sample immersed in an ice bath. Sonication is best suited for volumes <100 mL. Sonication cell lysis method Click image to enlarge. ... processing can be expedited by treating cells with glass beads in order to facilitate the crushing of cell walls. This ...Web
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3. Rock Breaking Experiment under Static Loading and Ultrasonic Vibration. To investigate the mechanism of rock crushing effect under the combination of static loading and ultrasonic vibration, the infrared time-space evolution test, rock porosity test, and uniaxial compressive strength test of rock under the combination of static loading …Web
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Ultrasonic vibration is a new type of rock crushing method that has received widespread attention in recent years. It is a kind of ultra-high frequency cyclic excitation, which is produced by the high-frequency reciprocating mechanical movement of piezoelectric materials using electric energy. Peng [ 5] analyzed the mechanism and …Web
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