Interference effects research on a certain shortwave radio of low frequency wide pulse electric field

2021 ◽  
Author(s):  
Jiuliang Xiong ◽  
Jie Yang ◽  
Yaohui Zhang ◽  
Yuebo Li ◽  
Zheng Pan
2021 ◽  
Vol 901 (1) ◽  
pp. 012073
Author(s):  
N V Statsyuk ◽  
D A Vorobyev ◽  
T I Smetanina

Abstract Corn is one of the key forage crops in agriculture. However, corn production in Russia still remains behind of its demand, so the search and development of technologies allowing to improve its yield are very relevant. Pre-sowing treatment of seeds of corn and other crops with physical fields provides stimulation of the growth and development of plants, but its efficiency depends on some parameters including duration of such treatment. The laboratory evaluation of the effect of a pre-planting treatment of corn seeds with low-frequency pulse electric field for 1–9 h on their germination, average lengths of the coleoptile and radicle root, and the number of seminal roots made it possible to determine the optimum exposure time (4 h) providing a significant improvement of germination (+26.7% of the control) and increase in the coleoptile length (+21.2% of the control). The maximum negative effect was revealed for a 5-h exposure; it resulted in a significant reduction of the coleoptile and radicle root lengths (421.7 and 16.3% of the control, respectively), as well as the reduction of the average number of seminal roots (4.8% of the control).


Author(s):  
Nur Adilah Abd Rahman ◽  
Muhammad Mahadi Abdul Jamil ◽  
Mohamad Nazib Adon ◽  
Ahmad Basri Zainal ◽  
Farideh Javid ◽  
...  

2018 ◽  
Vol 2018 ◽  
pp. 1-15
Author(s):  
Ying Li ◽  
Yu Gu ◽  
He Wang ◽  
Zhipeng Liu ◽  
Bing Song ◽  
...  

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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