scholarly journals Review of the Dynamics of Coalescence and Demulsification by High-Voltage Pulsed Electric Fields

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Ye Peng ◽  
Tao Liu ◽  
Haifeng Gong ◽  
Xianming Zhang
Keyword(s):  
Electric Field ◽  
Electric Fields ◽  
High Voltage ◽  
Industrial Application ◽  
Voltage Pulse ◽  
Pulse Electric Field ◽  
Pulsed Electric Fields ◽  
High Voltage Pulse ◽  
Technological Method ◽  
Pulse Electric

The coalescence of droplets in oil can be implemented rapidly by high-voltage pulse electric field, which is an effective demulsification dehydration technological method. At present, it is widely believed that the main reason of pulse electric field promoting droplets coalescence is the dipole coalescence and oscillation coalescence in pulse electric field, and the optimal coalescence pulse electric field parameters exist. Around the above content, the dynamics of high-voltage pulse electric field promoting the coalescence of emulsified droplets is studied by researchers domestically and abroad. By review, the progress of high-voltage pulse electric field demulsification technology can get a better understanding, which has an effect of throwing a sprat to catch a whale on promoting the industrial application.

Calculation and Experiment of Vibration of Droplet Subjected to Pulse Electric Field in Emulsified Oil

2014 ◽  
Vol 700 ◽  
pp. 686-689
Author(s):  
Hai Feng Gong ◽  
Ye Peng ◽  
Zhi Jun Yang ◽  
Xian Ming Zhang
Keyword(s):  
Kinetic Model ◽  
Electric Field ◽  
High Voltage ◽  
Voltage Pulse ◽  
Vibration Amplitude ◽  
Pulse Electric Field ◽  
High Voltage Pulse ◽  
Single Droplet ◽  
Emulsified Oil ◽  
Pulse Electric

Under excitation of high-voltage pulse electric field, the deformation vibration of droplet in oil was very important to electro-dehydration of emulsified oil. So far, the theoretical calculation on vibration of droplet was scarcely studied. In order to calculate the vibration of droplet, the forces acted on a single droplet needed to be analyzed, and the vibration kinetic model of droplet needed to be established. The model was resolved by method of harmonious wave balance. It was found by analysis that the resonance of droplet might occur. In the experiment, the results approximated to that of model calculation. So it was verified that the model could efficiently calculate the vibration amplitude of droplet.

Fundamental Study of Cannabidiol Effect on MCF-7 with Low Voltage Pulse Electric Field

2021 ◽  
Author(s):  
Nur Adilah Abd Rahman ◽  
Muhammad Mahadi Abdul Jamil ◽  
Mohamad Nazib Adon ◽  
Ahmad Basri Zainal ◽  
Farideh Javid ◽  
...  
Keyword(s):  
Electric Field ◽  
Voltage Pulse ◽  
Low Voltage ◽  
Pulse Electric Field ◽  
Fundamental Study ◽  
Pulse Electric ◽  
Mcf 7

scholarly journals Electric Pulses Can Influence Galvanotaxis of Dictyostelium discoideum

2018 ◽  
Vol 2018 ◽  
pp. 1-15
Author(s):  
Ying Li ◽  
Yu Gu ◽  
He Wang ◽  
Zhipeng Liu ◽  
Bing Song ◽  
...  
Keyword(s):  
Wound Healing ◽  
Electric Field ◽  
Dictyostelium Discoideum ◽  
Electric Fields ◽  
Duty Cycle ◽  
Pulse Electric Field ◽  
Underlying Mechanism ◽  
Electric Pulses ◽  
Electric Stimulator ◽  
Pulse Electric

Galvanotaxis, or electrotaxis, plays an essential role in wound healing, embryogenesis, and nerve regeneration. Up until now great efforts have been made to identify the underlying mechanism related to galvanotaxis in various cells under direct current electric field (DCEF) in laboratory studies. However, abundant clinical research shows that non-DCEFs including monopolar or bipolar electric field may also contribute to wound healing and regeneration, although the mechanism remains elusive. Here, we designed a novel electric stimulator and applied DCEF, pulsed DCEF (pDCEF), and bipolar pulse electric field (bpEF) to the cells of Dictyostelium discoideum. The cells had better directional performance under asymmetric 90% duty cycle pDCEF and 80% duty cycle bpEF compared to DCEF, with 10 Hz frequency electric fields eliciting a better cell response than 5 Hz. Interestingly, electrically neutral 50% duty cycle bpEF triggered the highest migration speed, albeit in random directions. The results suggest that electric pulses are vital to galvanotaxis and non-DCEF is promising in both basic and clinical researches.

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