Decomposition of formaldehyde (HCHO) by a microplasma reactor in order to improve Indoor Air Quality (IAQ) was achieved. HCHO was removed from air using one pass through reactor treatment (5 L/min). From an initial concentration of HCHO of 0.7 ppm about 96% was removed in one pass treatment using a discharge power of 0.3 W provided by a high voltage amplifier and a Marx Generator with MOSFET s...

Physical launch of the WWR-M reactor in the branch of Physical-Technical Institute of AS of the USSR in Gatchina took place on the 29th of December in 1959. However the first work on nuclear spectroscopy was carried out before the reactor was launched; namely, gamma-radiation was measured of short-lived isomeric nucleus with lifetime of some tens of minutes produced by irradiation in the reacto...

Could nuclear power be rapidly expanded on a global scale? There are a number of practical limiting factors, including site availability and acceptability, nuclear waste disposal issues, and the risks of accidents and proliferation. But there are also a variety of resource limitations. One particular resource limitation that has not been clearly articulated in the nuclear debate thus far is the...

The trend in dielectric etching in microelectronics fabrication with capacitively coupled plasmas is the use of multiple frequencies where a high frequency (HF, tens to hundreds of MHz) dominates ionization and a low frequency (LF, a few to tens MHz) is used to control ion energy distributions to the wafer. Process parameters, such as pressure, gas mixture and LF and HF power deposition, are im...

In process industries, the measurement of void fraction is considerably important for sustainable operations. The erroneous calculation of void fraction is inevitably be the cause of many industrial accidents such as loss of coolant accidents in reactor operations, sweet corrosions in sub-sea oil and gas pipelines and an in-efficient process control of chemical plants. Keeping in view the impor...

In this paper new autotransformer arrangements with reduced kVA capacities are presented for harmonic current reduction and to improve AC power quality of high current DC power supplies. A twelve-pulse AC to DC rectifier is proposed employing only 0.18Po (pu) transformer kVA. The 5th and 7th harmonics are absent in the utility line currents. Further it is shown that conventional 12pulse operati...

The transformation of the energy supply needs further development of energy storage technologies in order to integrate the fluctuating renewable energy. The conversion of renewable wind power into green methane offers a technical approach with the necessary storage and transport capacities. Thus, the concept of Power-to-Gas which is illustrated here by the coupling of wind energy with a High Te...

Ultrasonic modelling and simulation are widely used in inspection qualification by industrial non-destructive test. Due to limitation of inspection conditions and radiation environment inside the nuclear power plant, it is useful to study the application of ultrasonic simulation technology to in-service inspection in nuclear power plant. Simulation can be used to demonstrate the inspection capa...

A gold coated copper rotating electrode was used to eliminate surface oxidation effect. This study examined the effect of electrode rotation on the ozone generation process and showed that an ozonizer with an electrode rotating system might be a possible way to increase ozone-synthesis efficiency. Two new phenomena appeared during experiments with the rotating electrode. First was that ozone co...

Nuclear fission is capable of meeting global needs for carbon-free energy for millennia. However, the siting and implementation of waste repositories for spent fuel is becoming increasingly problematic from a financial and political perspective. We have performed initial studies of a novel concept for the permanent disposal of longlived fission waste, where “permanent” is defined as being on th...