scholarly journals XPS STUDY OF SURFACE NITROGEN ON PET ACTED BY LOW TEMPERATURE PLASMA AND LOW ENERGY IONS

1988 ◽  
Vol 37 (3) ◽  
pp. 373
Author(s):  
WU NAI-JUAN ◽  
XIE KAN ◽  
HU JIAN-FANG ◽  
HONG MING-YUAN ◽  
LI HUI-NAN
2014 ◽  
Vol 81 (1) ◽  
Author(s):  
Francesco Taccogna

This work shows the basic foundation of the particle-based representation of low temperature plasma description. In particular, the Monte Carlo Collision (MCC) recipe has been described for the case of electron-atom and ion-atom collisions. The model has been applied to the problem of plasma plume expansion from an electric Hall-effect type thruster. The presence of low energy secondary electrons from electron-atom ionization on the electron energy distribution function (EEDF) have been identified in the first 3 mm from the exit plane where, due to the azimuthal heating the ionization continues to play an important role. In addition, low energy charge-exchange ions from ion-atom electron transfer collisions are evident in the ion energy distribution functions (IEDF) 1 m from the exit plane.


1999 ◽  
Vol 567 ◽  
Author(s):  
L.J. Brillson ◽  
A.P. Young ◽  
J. Schäfer ◽  
H. Niimi ◽  
G. Lucovsky

ABSTRACTLocal electronic states at nanometer-thick silicon oxide and nitride films on Si can be studied on an unprecedented scale using low - energy cathodoluminescence spectroscopy to observe optical transitions of defect bonding arrangements at ultrathin film interfaces prepared by low -temperature plasma deposition. Our results illustrate significant differences in the dependence of specific defects at the oxide versus nitride interfaces on thermal annealing and hydrogenation.


2019 ◽  
Vol 23 (3) ◽  
pp. 746-754
Author(s):  
Dinar Dilshatovich Fazullin ◽  
Gennady Vitalievich Mavrin ◽  
Vladislav Olegovich Dryakhlov ◽  
Ildar Gilmanovich Shaikhiev ◽  
Irek Rashatovich Nizameyev

Water ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 194
Author(s):  
Joanna Pawłat ◽  
Piotr Terebun ◽  
Michał Kwiatkowski ◽  
Katarzyna Wolny-Koładka

Sterilization of municipal waste for a raw material for the production of refuse-derived fuel and to protect surface and ground waters against biological contamination during transfer and storage creates a lot of problems. This paper evaluates the antimicrobial potential of non-equilibrium plasma in relation to the selected groups of microorganisms found in humid waste. The proposed research is to determine whether mixed municipal waste used for the production of alternative fuels can be sterilized effectively using low-temperature plasma generated in a gliding arc discharge reactor in order to prevent water contamination and health risk for working staff. This work assesses whether plasma treatment of raw materials in several process variants effectively eliminates or reduces the number of selected groups of microorganisms living in mixed municipal waste. The presence of vegetative bacteria and endospores, mold fungi, actinobacteria Escherichia coli, and facultative pathogens, i.e., Staphylococcus spp., Salmonella spp., Shigella spp., Enterococcus faecalis and Clostridium perfringens in the tested material was microbiologically analyzed. It was found that the plasma treatment differently contributes to the elimination of various kinds of microorganisms in the analyzed raw materials. The effectiveness of sterilization depended mainly on the time of raw materials contact with low-temperature plasma. The results are very promising and require further research to optimize the proposed hygienization process.


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