The paper discusses the possibility of solar energy using in the Republic of Kyrgyzstan (RK) for the purpose of electricity distribution. The data sources analysis for the calculation of solar resources was conducted. Due to the scarcity of solar radiation stations on the territory of the RK, international thematic databases containing sufficient information for resource assessment and design were considered. These databases contain the results of long-term ground-based measurements, mathematical modeling and satellite observations. The paper justifies the compliance of a global database with public access NASA SSE to the problem of solar energy resources estimation, and estimates the gross capacity for the territory of the Kyrgyzstan. The authors propose their method of initial evaluation of performance, capital cost and footprint for network photovoltaic plant. The calculations are performed based on monthly averages of daily insolation and the average temperature. To account for the effect of ambient temperature on the output of PV modules, the paper considers two scenarios: the maximum and minimum daily mean ambient temperatures in each month. Evaluate the performance and the cost of electricity are made for plants with a capacity of 5 MW in the case of placing it near the cities of Bishkek and Osh (northern and central part of the RK). At the same time the authors carry out a comparative analysis of the results obtained for several types of silicon photovoltaic modules on the market today: monocrystalline, multicrystalline and the thin film. It is shown that the maximum performance of the network station is provided at an inclination of modules close to the latitude. The temperature dependence of the module characteristics makes the largest contribution to the change in productivity in the summer. The calculations also show that the multicrystalline photovoltaic modules are optimal in terms of price and quality for selected conditions.

The article presents the analysis results of the wind energy potential of Ambon Island based on actual hourly average wind speeds data during the period from 2008 to 2013. Wind regime assessment of the territory includes the determination of annual average wind speed, wind frequency occurrence of different wind directions, the distribution of wind speeds during the year. Statistical calculation and analysis of meteorological data showed that the useful wind speed blowing more than 50% of the time in a year, and the average of wind power density at the height of 50 m is 128 W/m², which determines good conditions for the use of wind turbines in the region.

This article discusses the implementation of national standards on the application of hydrogen as a fuel. There are several entities involved in this activity in the Russian Federation, namely, National Association of Hydrogen Energy (NAHE) supported by the Technical Committee for Standardization TC 029 "Hydrogen Technologies" of the Federal Agency for Technical Regulation and Metrology (GOST R).  The article presents the international classification of hydrogen fuel and gives a summary of the Russian national standards and draft standards dedicated to hydrogen application as a fuel.  By now, 22 national standards on hydrogen and fuel cell technologies have been implemented and the other 10 draft standards are under development. Four active standards determine the requirements for physical and chemical properties of hydrogen as a commercial product, two of them provide the requirements for physical and chemical properties of hydrogen used as a fuel for various types of power plants. Besides that, we have one draft standard on the requirements for hydrogen used as a fuel for stationary fuel cell power plants with proton exchange membranes. In accordance with the national standardization program this draft standard is to be introduced by 2016-2017.

The paper describes the new type of highly effective ecologically clean small-scale power plants that use renewable energy resources of both organic and inorganic origin, notably biogas and aluminum. The oxidation of aluminum in water suspensions proceeds in combustion wave in high temperature reactor at pressures up to 100 atm and temperatures 2500-3000^oC. The process let separate generation of hydrogen and high temperature steam. The first stage involves the combustion of water-aluminum suspension of stoichiometric composition with the production of hydrogen and rigid frame of very hot aluminum oxide. At the second stage after hydrogen removing the additional portion of water is introduced into reactor. At the interaction with hot aluminum oxide this water converts to high temperature steam. After aluminum oxide removing the process can be repeated. Such process enables us to escape the penetration of highly dispersed corundum particles in power plant. As a combustor for low calorific biogas a volumetric matrix burner is used. The possibility of stable combustion of low calorific biogas in such combine power plant is provided both by the peculiarities of matrix combustors and addition of hydrogen generated at the combustion of water-aluminum suspension. Thus, such combination enables us to use two different types of renewable energy sources in combined device. At that, aluminum oxidation produces hydrogen that provides sustained combustion of low calorific biogas in matrix burner for ecologically clean distributed power generation from renewable sources.

Noise is one of the major world problems in the area of the environmental protection. At that level, the impact assessment of noise does not exist. This is the reason that the method to dealing with the noise depends on the culture, economy and politics of certain country. In the sense of healthcare, noise is one of the main causes of damage to health. Until recently it was thought that the effect of noise is confined to the organ of hearing, but today it is a proven fact that the noise causes organ and functional disorders, changes in the human body. The noise levels presented in the communal area are not high enough to result in hearing damage, but they can cause just mentioned side effects. In addition to legislative regulation in the area of environmental noise, types and sources of noise, this paper explains current problem of noise in the city of Belgrade, Serbia. Environmental noise, as the most present type of noise in Belgrade, is presented here based on the basis of the conducted systematic measurement of this kind on the entire territory of the city in 2013. Analysis result of the measurements completes the image of this issue. Finally, as concluding remarks, this paper offers draft measures that need to be taken in order to reduce the level of noise in Belgrade.

The paper discusses the field observation results of the vibration of the spillway dam Zhiguli hydroelectric station, the ground surface and residential buildings located in the surrounding area at various flood discharges and various schemes of flood evacuation. The amplitude of vibration of each section of the dam is directly proportional to the specific consumption of water discharged through the section of the dam and weakly depends on the mode flood evacuation. It is discovered the fact of self-synchronization of the oscillations of the individual sections of the dam. The dam begins to move as a single rigid stamp on the elastic foundation. Oscillations of the ground surface grow sharply at a fixed distance from the dam. The paper presents the results of measurements of the different designs houses vibration at different distances from the dam and the dependence of vibration parameters from the floods skip mode. There are recommendations for reducing houses vibration. The research defines flood parameters, in which homes vibration will exceed health standards.

The outgassing from the adhesive joints, the use of which will significantly simplify the assembly of the vacuum electro-mechanical devices, has a negative impact on the operation of these devices, reducing their lifespan. The article solves the problem of reducing the rate of outgassing from the adhesive joints in vacuum electro-mechanical devices due to thermal processing (drying), which is widely used in industry. For 14 industrial adhesives (E505, P102, E207, H74UNF, H77S, 353ND, Resbond 940LE, Resbond 989F, Cerambond 618N, WB-21, Anyterm 106, C, OS-52, OS-92), suitable for assembly electro-mechanical devices, the paper defines qualitative and quantitative composition of the atmosphere of the residual gas generated inside electro-mechanical devices due to outgassing from the adhesive joints that enables us to pick the gas absorption elements and their mode of operation to maintain the vacuum. In order to improve the reliability of the study results, the research was carried out by two methods: mass spectrum (mass spectrometer «MI-1311»), and opto-acoustic (gas analyzer «Megacon 10K»). The paper estimates maximum speed of outgassing for precise vacuum electro-mechanical device with a lifetime of 15 years. There is the developed model of the kinetics of outgassing  to determine the modes of thermal processing process adhesives, namely, temperature, duration and atmosphere (vacuum or air), providing the necessary speed outgassing from the adhesive joints for normal operation of the vacuum electro-mechanical devices. Based on the experimentally derived values of the velocities of the outgassing components of the residual gas for the two modes of thermal processing  adhesives are calculated outgassing speed for other modes and selected the optimal parameters of  thermal processing.