Results show that there is a range of the actuation frequency which includes the frequency calculated by the average aerodynamic chord length to make the control effect good, but when the actuation frequencies are too low or too high , the control effect will get worse. The former is because plasma induced vortexes disappear in a period within an actuation cycle; the latter is because plasma induced vortexes cannot develop completely, resulting in a weak vortex văn bản luật intensity. This paper is aimed to investigate the effect of packing material on plasma characteristic from the viewpoint of charge transfer process. Both the charge accumulation and release processes in the dielectric barrier discharge reactor and packed-bed reactor were investigated by measuring voltage and current waveforms and taking ICCD images. The packing material was ZrO2 pellets and the reactors were driven by a parameterized nanosecond pulse source.
It is expected that the local field enhancement causes a premature penetration of the magnetic field, thus lowering Hen. Then, for each investigated sample, the range of β values characterising defect type that cause the highest field enhancement, is identified and compared with the thiện nguyện Hen fields. We have found that the Hen of the samples that contain multiple types of the surface features is indeed limited by those defects that cause the highest field enhancement. The Hen vs β dependence has shown a good match with linear fit for the set of investigated samples.
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Using a 3D electro-thermal FEM model, we reproduced these behaviors, assuming a HTS tape architecture with an inhomogeneous local critical current density. Finally, using the same FEM model, we explored the impact of a lack of silver on one lateral side of a 2G HTS tape. Our results indicate that such a lack of silver does not critically affect the quench dynamics. The effect of nanosecond pulsed dielectric barrier lắp mạng viettel tphcm discharge (NS-DBD) plasma flow separation control is closely related to the actuation frequency, because it involves the interaction between plasma induced vortexes and separated flow. Then, numerical studies of different actuation frequencies which are 50Hz, 100Hz, 160Hz, 200Hz, 500Hz, and 1000Hz, respectively are conducted. The interaction between the plasma induced vortexes and the separated flow is analyzed.
This multivariate method was further introduced and discussed to improve the analysis performance. The MAEs of L.O.I., SiO2, Al2O3, K2O and Na2O were further reduced to 1.12%, 2.07%, 1.38%, 0.35% and 0.43%, respectively. The results show that the overall prediction error can meet the requirements for the production of building ceramics. The LIBS desktop analyzer has great potential in detection applications on geological samples. To fully realize the superiority of the iodine electric propulsion system in streamlining the size and reducing the operating costs, iodine hollow cathode timesofworld must be developed. Considering the corrosiveness of iodine and the possible impurity of the working propellant, the C12A7 hollow cathode with promising chemical ability was developed and tested.
The concentrations of SiO2, Al2O3, K2O, Na2O, CaO, MgO, Fe2O3 and TiO2, and loss on ignition (L.O.I.) are the main inorganic components of geological samples. Concentrations of the eight oxides and L.O.I. are also the main indicators of concern in the production of building ceramics. Quantitative chungculongan analysis of the eight oxides and L.O.I. was performed using fiber-laser-based laser-induced breakdown spectroscopy . A combination of continuous background deduction, full width at half maximum intensity integral and spectral sum normalization was proposed for data processing.
Atmospheric pressure cold plasma, with advantages such as high particle activity, no thermal damage, high efficiency and direct and friendly contact with human tissues, is considered to have great potential in biomedical applications. Therefore, 'plasma medicine' as a new interdiscipline has been developed in the past two decades. This review first briefly describes the development of typical plasma sources suitable for biomedical applications, and those with different discharge forms are simply compared, evaluated and summarized. Subsequently, measurement of the crucial gaseous reactive particles (e.g. OH and O) and their spatio-temporal distributions are introduced. Meanwhile, the generation and variation rules and the related critical macroscopic parameters of the plasma-induced aqueous reactive species are summarized. Finally, related studies in the last ten years on the mechanisms of the plasma-driven microbial inactivation and plasma-induced apoptosis of cancer cells are introduced.