In this work, we, for the first time, manufactured a plasma-chemical reactor operating at a frequency of 0.11 MHz. The reactor allows for the activation of large volumes of liquids in a short time. The physicochemical properties of activated liquids (concentration of hydrogen peroxide, nitrate anions, redox potential, electrical conductivity, pH, concentration of dissolved gases) are characterized in detail. Antifungal activity of aqueous solutions activated by a glow discharge has been investigated. It was shown that aqueous solutions activated by a glow discharge significantly reduce the degree of presence of phytopathogens and their effect on the germination of such seeds. Seeds of cereals (sorghum and barley) and fruit (strawberries) crops were studied. The greatest positive effect was found in the treatment of sorghum seeds. Moreover, laboratory tests have shown a significant increase in sorghum drought tolerance. The effectiveness of the use of glow-discharge-activated aqueous solutions was shown during a field experiment, which was set up in the saline semi-desert of the Northern Caspian region. Thus, the technology developed by us makes it possible to carry out the activation of aqueous solutions on an industrial scale. Water activated by a glow discharge exhibits antifungicidal activity and significantly accelerates the development of the grain and fruit crops we studied. In the case of sorghum culture, glow-discharge-activated water significantly increases drought resistance.

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The potential use of low-temperature plasma (LTP) for therapeutic purposes has aroused the concern of many researchers. This paper examines the effect of LTP on the morphofunctional state of human bone marrow stem cells (BMSC). It has been established that LTP-induced oxidative stress has a dual effect on the state of stem cells. On the one hand, a cell culture exposed to LTP exhibits the progression of a destructive processes, which is manifested by the perturbation of the cell’s morphology, the initiation of lipid peroxidation and the accumulation of products of this process, like diene conjugates and malondialdehyde, as well as the induction of mitochondrial dysfunction, leading to cell death. On the other hand, the effect of LTP on BMSC located at a distance from the plasma is accompanied by the activation of proliferative processes, as evidenced by the tendency of the activity of mitochondrial biogenesis and fission/fusion processes to increase. The paper discusses the role of mitochondria and reactive oxygen species (ROS) in the cellular response to LTP.

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At present, a mobile, self-contained laser rated at 50 -70 kW or higher is required for solution of a whole range of urgent problems of technology and environment protection. Amongst these problems:. worn chemical and nuclear reactors recovery; . heavy-gauge metal welding and cutting; . hard material and rock destroy; . thin oil films elimination from water surface of seas and oceans.As comparative analysis of various types of lasers shows, the best of all weight and overall dimensions (absolute and specific), and performance, at the power level above are possessed by the gas-dynamic lasers. The following advantages are intrinsic for GDL:. direct conversion of thermal energy to one of radiation; . GDL does not require supplementary high power sources or mains of electric power;. relative ecological safety ofexhaust gases, similar to automobile gases; . relative simplicity ofservice etc. . Such a laser may be mounted in a conventional seabome container (40 ft) and then attached at practically any carrier, including airborne and seaborne.AMT GDL is being created on a basis of long-standing achievements of scientific and manufacturing institutions in the area of GDL, also experience of aviation and space science and industry in Russia. The technical solutions of basic units and aggregates are thoroughly tested on liability, hence AMT GDL overhaul period spreads to hundreds and thousands of hours, the exhaust being safe over noise and ecological parameters.Within the frame of this report, considered are selected problems concerning creation and development of the AMT GDL on a basis ofa gas-turbine engine.Presented are results of calculations and experiments carried out to raise AMT GDL efficiency by additional pumping owing chemical reactions taking place in gas flowing via nozzles of GDL. important condition for the effect to be achieved is proper arrangement of mixing and reacting processes in subsonic gas flow. Experimental results on chemically pumped GDL (ChGDL) discover the new trend of creation economically advanced high power industrial lasers, with low divergence of radiation, operating in any climate and consuming cheap sorts of fuel.Units of high power gas-dynamic laser (gas generator, nozzle unit, diffuser, mirrors and others) require intensive heat removal. Water is used for cooling in stationary setups. Under stationary conditions, water consumption is about 10 tons/hour that is not acceptable for mobile versions. Creation of mobile AMT GDL requires a new approach to the ways and systems of cooling. It is proposed to apply a compressor rated at 10 -20 kg/sec for bleeding the built-in cooling system. A Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/08/2015 Terms of Use: http://spiedl.org/terms turbocompressor aggregate of a mass-production turbojet is implied to provide the system with compressed air: 3 -5 atm is planned to be extracted from the fan section and 20 -25 atm from high pressure section. I. Experimental Investigation combustion-driven chemical gasdynamicC02-laser ABSTRACT T...

The development of approaches for the non-thermal sterilization of instruments is an urgent task to ensure the safety of meat industry products, where the use of hot water leads to the formation of condensates and a deterioration in the hygienic condition of the premises. In this study, an installation for sterilizing knives was created, which works by activating aqueous salt solutions with a glow discharge. The power consumption of the installation reactor is only 125–150 Wh. The temperature rise of the sterilizing agent used is about 1.1 ± 0.2 °C/min/L. The effectiveness of the installation for plasma-activation of aqueous solutions of chloride and sodium sulfate by glow discharge (PAW) in relation to the inactivation of microorganisms, including Staphylococcus aureus, Salmonella typhimurium, Pseudomonas gessardii and L. monocytogenes, on steel surfaces was evaluated. Samples of stainless steel (parts of knives) were used in two versions (new and artificially aged). Mono- and polyspecies bacterial biofilms were grown on the surface of the samples. The treatment was carried out by immersing samples of steel plates in plasma-activated aqueous solutions. It was found that the treatment of plates in a knife sterilizer for 1 min had an effective effect on the inhibition of all types of studied bacteria.