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

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

An ultrasonic-assisted extraction method, which offered advantages in terms of the extraction yield and energy efficiency, was developed by response surface analysis. The following optimum conditions were determined: a crushing degree at 65 mesh, ultrasonic time at 50 min and temperature of 43 °C.Web

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

For an ideal state of ultrasonic-assisted crushing, which can restrict the pounding services, the design of experiment method was used. The major machining …Web

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

The ultrasonic crushing decreased the granulating power to 23% than the customary pounding and this could diminish the device wear. Jatinder Kumar concluded that ultrasonic machining is perhaps the most broadly utilized non-customary cycles, particularly for business machining of hard, weak, and delicate materials. There is colossal extension ...Web

The new technique of using ultrasonic vibration to break hard rock is still in the experimental stage, but it has significant potential for improving the efficiency of hard rock crushing. We have analyzed the mechanical properties of granite under ultrasonic vibration and the characteristics of the damage produced. This was achieved by using …Web

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

be expedited by treating tough cells with glass beads to facilitate the crushing of cell walls. This treatment is commonly used with yeast cells. Viscosity of a sample typically increases during lysis due to the release of nucleic acid material. DNase can be added to samples (25-50 µg/ml) to reduce this problem. Nuclease treatment is not ...Web

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

@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

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

The rock-breaking efficiency strongly depends on vibration parameters. This study performed rock-breaking tests of red sandstone samples under different static loads combined with ultrasonic ...Web

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

Using ABAQUS finite element software, a polygon SiC particles model with a high-volume fraction was established to investigate the SiC particles crushing process …Web

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

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

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

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

The effect of low-frequency ultrasonic irradiation on the cell production per dissolved inorganic, silica, nitrate and phosphate (a, b and c) and relative biomass yield per nutrient (d, e and f ...Web

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

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

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

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

Here, an effective method has been provided to fabricate BiInSn alloy powder based on ultrasonic crushing in combination with the dispersant solution.Web

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

crushing and the technical basis and advantages of ultrasonic-assisted crushing in the oil and gas industries. Additionally, it summarizes the basic action forms and influences ofWeb

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

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

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

@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

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

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