A data center is a building or facility composed of networked computer systems and storage that businesses use to organize, process, store and disseminate large amounts of data. It requires cooling and powering of servers which results in a high carbon footprint. A green or environment-friendly data center avoids polluting the atmosphere as much as possible and thus helps to green the surroundings. This paper provides a brief introduction to green data center.

The publication aims to present social programs implemented on the territory of the European Union, activities aimed at solving socio-demographic problems and to determine the impact of these activities on the situation in the European Union member states on the example of Poland. The analysis covered social and demographic phenomena occurring in the contemporary European economy, as well as the challenges faced by the European Union community. The links between social policy implemented by the governments of European countries and the demographic situation in Europe were pointed out. The main problems and possible directions of actions to improve the economic situation were finally pointed out.

The estimate of actual evapotranspiration is very important not only in the study of climate changes and evaluation of water resources but also in crop water requirement scheduling etc. This study was conducted to estimate the evapotranspiration using CROPWAT 8.0 Model for Taung-Nyo dam cultivated area. It was collected the long term daily meteorological data including maximum temperature, minimum temperature, relative humidity, wind speed and sunshine hours from the Meteorological and Hydrological Department to calculate the reference evapotranspiration, ETO. Crop coefficient, KC was multiplied with ETO which is a measure of evaporative demand to get actual evapotranspiration, ET. The major crops in this cultivated area are Monsoon season crops which are paddy, sesame and maize and dry season crops which are green gram, bean, sugarcane and groundnut. The study observed that the maximum actual ET are 170.6 mm and 186.8 mm in the month of April for the average period and for each year, respectively due to high temperature and the minimum are 89.093 mm and 85.513 mm in December. So, it can be concluded from the observ

The article below will describe the activity of local self-governments. Next, the classification of reforms that territorial self-governments can implement to modernize their activities will be presented. The rest of the article presents a number of modern solutions that Australian self-governments have implemented in recent years. The activities of these units consisted in creating modern solutions for the local region. Modern solutions for the region have been introduced thanks to modern technology and the Internet. The examples described in the article below are, for example, local government websites, a communication network for residents in the event of a disaster, the creation of open databases.

Today, luxury yachts are considered as a symbol of status and it is usually perceived with their styling and interiors. This makes the two complementary works important in the production process, construction of the hull, superstructure and partitioning the interior, making furniture. All are related not only with aesthetics, quality, ergonomics, comfort and functionality but also safety, stability and performance. Choosing the right method in yacht production and furniture making is critical for minimizing the error. Requirements of the client, capacity, know-how, equipment pool of the boatyard and furniture company should be taken into consideration in this choice. Design process must be completely finished before the production starts. As the data collection method, an interview is made with the director of a boatyard producing Lobster type yachts, which is a small-sized company, so the director was involved in almost all phases of construction. This was helpful to see the whole picture and even few, to understand the problems faced with. Within the scope of this study, after a shortened literature review in the second chapter, there is a summarized report of all answers to picturize the production process of the yacht in the third. As a conclusion, the main problem was with the delivery time which was not enough to finish both the project and production. It was a pressure on the company, so resulted with an early start for positive mold making. Because the details were still being drawn during this phase, some problems with mounting occurred later

Novel thin films V2O5 @TeO2 prepared with hexadecyl trimethyl ammonium bromide (CTAB) by hydrothermal method at (160oC) were fabricated successfully on glass substrates. Also, used as the parameters to control morphology by hydrothermal technique. At room temperature and annealing by tubular quartz furnace at temperature (473,673) K for 8 hours with air. Their NO2 gas sensing properties were examined at a different annealing temperature and showed promising sensitivity and response towards tested gas. The polycrystalline nature of the obtained films was confirmed by XRD diffraction. Surface morphology was studied using field emission scanning electron microscopy FESEM, Energy-dispersive X-ray spectroscopy, and atomic force microscopy AFM. After annealing, the roughness of the surface and the mean grain size were increased annealing temperature

Expansive soil is a kind of soil to have high potential for swelling and shrinkage where it has low bearing capacity. On the pavement that laid over the expamsive soil, the uneveness of upward movement caused swelling that it potentially damaged to the road. This study aimed at minimizing the potential of swellimg and shrinkage, while at the same time improving the bearing capacity of the subgrade expansive clay soil through stabilization using the Feldspar, a group rock-forming tectosilicate minerals that made up about 41% of the earth’s continental crust by weight. 5 to 30% of Feldspar with increment of 5% by weight of the soil were added. Atterberg Limit, Direct Shear, and California Bearing Ratio (CBR) test were conducted. Result in Atterberg Limit test showed that the adding of Feldspar to 30% in the expansive soil did not indicate reduction in thr swelling potential. Potential for swelling become zero only if was Feldspar content added to 55% by weight of the expansive soil. However, the results in Direct Shear and CBR tests indicated that the bearing capacity of the expansive soil improved as a result in the increasing of Feldspar content in the soil. With reference to the result in the study, it could be inferred that Fldspar was feasible and had the potential to be stabilizing materials for expansive clay soil.

In this paper, we consider a nonlinear fractional boundary value problem with non-homogeneous boundary conditions: ( ( ( ))) ( ) ( ( )) ( ) ( ) ? ( )? ? ( ( ))? ? ? ? ? ? ? = - = + - = ? ? ? + + - - + - - = ? - = + - - - - 0. 2 0, 2 , 1 1 0, , 2 2 1 1 2 b p t b p x t x x b x t x t h t f x t t T ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? Where , ? 1, 2? , 0 1 2, 2 3, -1 ? = - + - ? ? ? ? ? ? + ? + ? ? ? ? ? ? ? b Z T b we invert the problem and construct and analyse the corresponding Green’s function. We obtain sufficient conditions for the existence of positive solutions for p - Laplacian fractional differential involving the discrete delta-nabla fractional boundary value problem with non-homogeneous boundary conditions.