Study on Effect of Pulse Electric Field on Solidification Process of Fe-C-S Alloy Melt

2011 ◽  
Vol 284-286 ◽  
pp. 1137-1142
Author(s):  
Zhi You Liao ◽  
Hai Chuan Wang ◽  
Peng Hong ◽  
Xin Li ◽  
Shi Jun Wang ◽  
...  
Keyword(s):  
Electric Field ◽  
Pulse Electric Field ◽  
Boundary Segregation ◽  
Solidification Process ◽  
Negative Polarity ◽  
Solidification Microstructure ◽  
Grain Boundary Segregation ◽  
Positive Polarity ◽  
Pulse Electric ◽  
Migration Law

It can reduce the grain boundary segregation effectively, and improve the solidification microstructure, as well as cause the migration and redistribution of elements by adding the pulse electric field during the solidification process of the Fe-C-S alloy melt. Where, the element S migrates from the positive polarity to the negative polarity, while the migration law of the element C is reverse to that of the element S. The principal ingredient of the inclusion in solidification microstructure after treatment is FeS and a small amount of MnS, while FeS is distributed at the edge and in the centre area of the whole sample spherically.

Effects of Superposed Field on Solidification Microstructure of Al-7wt%Si Alloy

2011 ◽  
Vol 189-193 ◽  
pp. 3999-4002
Author(s):  
Zhi Hua Wang ◽  
Ming Zhu ◽  
Guang Ji Xu
Keyword(s):  
Electromagnetic Field ◽  
Electric Field ◽  
Pulse Electric Field ◽  
Experimental Results ◽  
Solidification Microstructure ◽  
Hypoeutectic Alloy ◽  
Triangular Pulse ◽  
Pulse Electric ◽  
Equiaxed Grain

In this paper, the effect of superposition of rotating electromagnetic field and triangular pulse electric field on the microstructure of the cast Al-7wt％Si hypoeutectic alloy was investigated. The experimental results showed that solidification microstructure of Al-7wt％Si hypoeutectic alloy could be obviously improved from dendrites to nearly equiaxed grain with increasing the voltage of rotating electromagnetic field and α－Al dendrites were refined by superposed field. Moreover, refinement effects were further improved with increasing intensity of the superposed field.

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.

Application of pulse electric field pretreatment for enhancing lipid extraction from Chlorella pyrenoidosa grown in wastewater

2019 ◽  
Vol 133 ◽  
pp. 233-239 ◽  
Author(s):  
Song-Fang Han ◽  
Wenbiao Jin ◽  
Qian Yang ◽  
Abd El-Fatah Abomohra ◽  
Xu Zhou ◽  
...  
Keyword(s):  
Electric Field ◽  
Lipid Extraction ◽  
Pulse Electric Field ◽  
Chlorella Pyrenoidosa ◽  
Pulse Electric
Sign in / Sign up

Export Citation Format

Share Document