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Brief Production of electrical power from renewable energy sources presents a chance to: satisfy the societyпїЅs power needs without encumbering the environment with combustion products of, among others, lignite and coal, energy security as well as become independent from traditional energy source suppliers. The aim of this article is to present the methodology used when designing wind farms utilising a group of wind turbines. The article presents the objectives of the European UnionпїЅs policy on renewable energy...

Paper describes the usage of fragmentation indexes in condition of Slovak Republic. The aim of this paper is to objectively evaluate the success of new territorial organization after land consolidation (LC) process. Four indexes of fragmentation are methodically evaluated (Shape - SI, Simmons - FI, Januszewski - K and Reduction index - RI) and endurance distance of one owner to its plots is determined in initial and new state. Thus established approaches are unique in Slovak conditions and mentioned parameters are...

In our paper we deal with the evaluation and comparison of precipitation totals and interception in living and dead climax spruce stands at a research plot of ?ervenec during the non-vegetation periods (from approximately October to May) in the years 2012 - 2016. The difference in interception was analysed from October 2012 because during the summer 2012 the forests in the area died due to the infestation by the spruce bark beetle (Ips typographus). The research site is located in the Western Tatras (Slovakia) in ...

Liquefied Natural Gas (LNG) is stored in cryogenic tanks at receiving terminals. During the LNG storage some part of LNG evaporates into gas phase. Evaporated LNG is called Boil off Gas (BOG). Heat flow has an influence on evaporation process. It indicates continuous boil-off of small fraction of LNG due to heat flow from the ambient air through tank insulation. Vaporization process causes changes in the composition of stored LNG. Increased vaporization process may negatively affect the stability and safety of the...

A learning algorithm was used as an artificial neural network (ANN) tool to predict the mechanical properties of some iron-based powder metallurgy (P/M) materials. Specimens prepared from atomized iron powder and from pre-alloyed iron base powders powders were analyzed in this paper. The specimens were fabricated by press and sintering of the mixed powders. The samples were compressed in a universal mechanical testing machine to a pressure of 400 and 600 MPa. The sintering temperature was approximately 1.150 пїЅC....

The modern life and industrialization with their great impact and large scale of influence generates a colossal amount of waste products. Not only that they have huge physical volume but they also cause many short and long term effects on the nature, human way of life and all processes on the planet. The waste products' concentration in specific zones leads to conditions which makes them uninhabitable. The construction of landfills for industrial solid waste follows the modern requirements for disposing, encapsula...

The search for prospective sources of rare earth metals (REM) is one of the most important problems of the EU economy. Currently, it is believed that the source of REM may be deposits of coals or by-products of their combustion. A particularly promising appear to be fly ash from the combustion of coal because of much higher concentration of REM than in the coal beds. These facts and the dependency of domestic power energy on coal was an impulse to undertake work to determine the feasibility of obtaining the REM fr...

ZvolenskпїЅ teplпїЅrenskпїЅ Inc. is a company that has been providing heating for the town of Zvolen for decades. After the reconstruction in 2008, it is using low-sulphur lignite, wood chips and natural gas as a fuel, resulting in fine ash, that is collected nearby; however, it is spread by natural forces into surrounding gardens, forests, soil and water. To dispose of this ash ecologically, there is a possibility of using the Oyster mushroom Pleurotus ostreatus (Jacq.) P. Kumm, namely its ability of absorbing th...

Lake Suturuokha (69'06 "N, 145'23" E) is a unique lake within the Indigirka River basin, which is located on the border of the forest-tundra and taiga in the north of the Republic of Sakha (Yakutia). Formed due to the influence of glaciers of several glaciations in the late Pleistocene, the lake has a large area (69 km2) and comparatively shallow depths (2 - 2.5 m). Because of its unusual genesis and low study, the lake is of great interest to scientists. In August 2015, in the framework of the research expedition...

This paper reports the preparation of novel polymer membranes by phase inversion at room temperature (25 пїЅC), using acrylonitrile, acrylic acid, dimethyl sulfoxide and small amount of medicinal plant extract. We investigated the structure of the resulting membranes through Fourier Transform Infrared (FT-IR) spectroscopy and SEM microscopy. Also was determined the water content. FTIR-ATR spectra show that the peak at 1723 cm-1 shifted to lower wave number when medicinal plant extract (1715 cm-1) is added in the p...

Synthetic polymers play an important role in the agricultural use as structural materials for creating a favorable environment for plant growth. Over the last few years the science of synthetic polymers has received great interest as one of the most exciting areas of polymer chemistry for the production of improved materials. The creation of multifunctional materials with prognosticates properties is important. The main objective of the research was to develop methods for the preparation of transparent hydrogels f...

Our objectives were to investigate the bacteriological, biological and chemical status for sediment quality in a zone from Danube catchment according to Water Framework Directive. The area chosen for investigation is a large section of the Danube River on the section Bazias-Calarasi and its main tributaries located in the southern part of Romania (Jiu, Olt and Arges rivers) and the aquatic systems type пїЅdeltaпїЅ in the south-east of the Danube. All investigations performed where made in accordance with Directive...

The basic contractual instrument among all involved parties of construction projects in the Czech Republic is a contract for work according to the Civil Code of the Collection of Law of the Czech Republic. The contract is further supplemented by provisions based on long-term business experience and needs of contractual partners. An essential part is the type of price, its amount and the method of determining or adjusting the price. For green constructions in general and green buildings in particular it is customar...

When aiming to study pro-environmental behavior (PEB) developments at the local municipal level in Latvia, there were two complementary studies employed: 1- main local stakeholder groups interviewing in two town municipalities to study their existing PEB practice, especially obstacles and related municipal governance instruments; 2- questionnaire for about 100 Eco-schools (EcoS) coordinators in Latvia to study schools existing PEB practice within school grounds, but especially their orientation towards and collabo...

The article analyzes the necessity of forming a model of environmentally sustainable development. It is determined that the solution of this problem is extremely necessary for Russia. The characteristic of the basic concepts of solving global environmental problems is given. It is determined that the solution of this problem is extremely necessary for Russia. The characteristic of the basic concepts of solving global environmental problems is given. The need is formulated to consider nature as an economic category...

At the moment in Romania there are a total of more than 7000 individuals and legal entities authorized by ANCPI (National Agency for Cadastre and Land Registration) for geodetic, photogrammetric, cartographic, cadastre and land registration works [4]. According to ANCPI standards there are regulated minimum technical conditions necessary for authorization including types and performances for geodetic and topographic equipments. At the national level the State Legal Office of Legal Metrology (BRML), which is in cha...

The competitive markets complemented by the concern for resources and environmental protection represent real and actual challenges factors for any organization. The customers call for special attention and organizations integrate the customer-centred approach in their strategies as main vehicle for achieving performance objectives. One of the well-known methods in this matter is referring to the Total Quality concept which supports checking and implementing different quality models needed to improve the competiti...

The main purpose of any socio-economic system is the quality of life of the population. Factor of production is dominant in the regional economy to achieve those goals. Creating conditions for the development of industrial production, is subject to state regulation, including all levels of government. However, responsible for the achievement of the final goal are also enterprises, organizations and citizens themselves. Production potential and quality of life of the population-are directly linked to the level of e...

The research aim is to estimate the profit a forest owner can earn per full forest rotation cycle from forest stands of dominant coniferous species in Latvia, selling both the assortment of logs and biomass (BM) from final felling. The research analysed the situation in privately managed forests, composed of the coniferous species пїЅ Norway spruce (Picea abies L.) and Scots pine (Pinus syllvestris L.) пїЅ in different forest types in Latvia. The calculation of revenue from forest product sales took into account b...

The research aim is to identify a financial gain a forest owner can make from the management of a deciduous forest stand in Latvia provided that the stand is logged at the final (clear) felling age and the revenue is earned selling the wood as roundwood assortments and residue biomass or only as biomass (BM). The present research analysed the situation with forests owned by natural persons of the Republic of Latvia and identified the amounts of revenue a forest owner can earn growing deciduous пїЅ birch, black ald...

The purpose of this research was to study, analyze and evaluate strategies and concepts for recycling of waste related to the rests of burning processes form fossil fuels in the energy sector in transition countries. Accordingly to the European Opinion approach the objectives in future are to reduce the fossil energy resource utilization in order to minimize the negative impacts on the environment and human health. Meanwhile in countries that largely depend in energy production based on thermo power plants the mai...

Research Objective: To develop the rationale behind the implementation of low-waste technology in the light of development goals of mining company. The goals are determining the anticipated project results that are usually divided into economic, social and environmental results. Project methodology is different under the context of low-waste technology projects. Methodological Framework is based on the interdisciplinary methods, modern concepts of waste management and recycling under the context of mining operatio...

Today, sustainable development is related not only to sustainable production issues but also to a sustainable consumption. In the planning document пїЅSustainable Development Strategy of Latvia until 2030пїЅ, special attention is focused on enhancement of ecologically certified and healthy products, thus shaping the image of Latvia as a пїЅgreenпїЅ country by promotion of sustainable eating habits and cultural heritage. To position Latvia as one of the пїЅgreenestпїЅ countries of the EU, the consumers, food produc...

Fused Deposition Modeling (FDM) is one of the most used technology in the 3D printing field. There is many kind of 3D printers with different design and parameters, such work temperature, deposition speed and others. All of these parameters affect the final parts. Produced parts are made from different materials and therefore there are also different mechanical properties. So it depend what for the produced parts are designed, if there are just for design introducing or even for real use as conventional produced p...

The use of weak local soil as well as the recycling of existing worn-out structures such as old road pavements using micro particle road binders are a beneficial ecological solutions. Parameters of the soil stabilized with binders significantly affect the load bearing capacity and durability of the built structures. Mechanical parameters of the soil are therefore needed in the analysis and design of soil structures. Determination of the exact value of these parameters in indirect tensile test is related to the nee...

The forest is generally recognized as a major environmental and stabilizing factor in the country. Its stability is currently significantly influenced by changing climatic conditions. They are an important factor in a determining species composition of forest ecosystems, as well as ecophysiological and production processes directly linked to the overall performance and stability of forest stands. Dry summer months and warmer winters with negative anthropogenic activities actually create more favorable conditions f...

The goal of the contribution is to elaborate the analysis and prognosis of groundwater level regime using numerical modelling to show the possibility of introducing technical measures which have to mitigate the unfavourable groundwater level regime in the vicinity of the hydraulic structure. For numerical simulation purposes a mathematical model by means of finite element method has been provided in right-side alluvium of the VпїЅh River with detailed concentration on endangered village in the vicinity of the hydr...

Healthy and safe working conditions underground, especially in areas with potentially explosive atmospheres depend mainly on the method of operation and management of the ventilation system. For underground extraction of coal are running a complex network mining vertical, horizontal and inclined role extraction, transportation and evacuation the surface. Associated system of mining works has the air network to ensure the oxygen necessary for workers, diluting explosive gases and toxic substances and preparations t...

The Committee on Affairs of construction and housing and communal services of the Ministry of national economy of Kazakhstan approved the "Scheme of water supply and sanitation Kyzylorda", which is represented by the following decisions in choosing a water supply source. So, according to the first embodiment of the solution, the scheme drinking water supply was provided from two groundwater sources: Kyzylorda and Ky-zylzharminsky fields located on the right Bank of the city. Supply and return water was provided th...

Mineral wealth as a source of energy and materials for the needs of the economy and development must be systematically verified, protected and exploited most effectively. The protection and economic management of mineral wealth is one of the basic duties of the state.The Slovak Republic has developed a relatively complex system of legal standards and regulations dealing with this issue. Given the size of the problem under consideration and the number of regulations, these legal adjustments need to be reconciled. A...

A switch to combined automobile-conveyor transport is offered, i.e. cyclical and continuous method, at an early stage of the development of steeply falling deposits, based on usage of advantages of the safe intensive development of working zones along the steep open pit edges at a number of open pit mines on the territory of Kazakhstan. It is possible to shift from traditional approaches of cutting a new pit banks by advance of the cut trench with the minimum dimensions on the round-shaped open-pit fields. Decreas...

Problems generated by activities like mining exploatation, smelting or petrochemical refining include different levels of soils contamination with different pollutants. Having both the soils productivity and human health affected, these areas are of interest for researchers worldwide. The negative effects on the involved ecosystems and adjacent areas fully justify the current ecological and monitoring activities. Historically pollution in Baia Mare Mining Basin, like in all around mining basins, had has dramatical...

When it comes to workplaces characterized by a high degree of hazard and liability, such as mine intervention and rescue in major risk environments the most important element is the convergence of the skills required by job and skills of the individual, this being the guarantee of successful vocational selection. Along with psychological selection, training / retraining and physical training in conditions as close as possible to the reality of future interventions, under the action of stress factors that cause neg...

Since 2014 Russia has been developing and implementing a new environmental policy based on the concept Integrated Pollution Prevention and Control and Best Available Techniques. Transition to Integrated Environmental Permits is gradual: first 300 industries characterized as пїЅkey pollutersпїЅ have to obtain permits in the period of 2019-2022. They will be followed by at least 5-6 thousand industries of nearly 30 economic sectors. Within the construction materials industry sector, several older cement plants are l...

Formed under various natural conditions, soils are different from each other with respect to characteristics and fertility from region to region. That is why from ancient times it has existed and evoluated the preocupation for the appreciation, choosing and using the best lands for agriculture. Dolj County belongs to the temperate climatic area, but its position and the depression character of the field which it occupies in the neighbourhood of the bend of the Carpatho-balcanic mountainous chain, determines, on th...

With the growing number of cars in Russia over the last years, the number of gas stations has several times increased, and the range of oil products has greatly changed. At present gasoline should provide reliable and efficient engineпїЅs work; it mustnпїЅt change its composition and characteristics during long-term storage; mustnпїЅt damage reservoirs, fuel related components, industrial rubber articles; should have effective volatility and hydrocarbon composition; should provide non-detonating stable fuel combus...

The paper presents the analysis of the impact of quality and organizational parameters of products using industrial waste An attempt to analyze possibility of waste processing steel in order to improve the quality and properties of products. In today of globalization and standardizations processes, products as well as diagnostic systems, extremely a fact of abilities and adjustabilities seems material to the organization of enterprise for completion of diagnostic treatments. It isn't possibile here to omit the nee...

Geographic information is a huge volume of cartographic and geographic data, which is represented by the records, coordinates and attributes. According to the Handbook [2], geographic information is fractal with very simple geometric properties, is fuzzy, because it models a part of the physical world, is very dynamic, due to the rate of change, is unique and it contains errors. The most often medium, which displays geographic information is map, no matter if it is in analogue or digital form. The whole production...

The long-term effect of economic development in post-communist Romanian urban areas brought exponential growth in motorization and uncontrolled urban expansion. As Romanian authorities still adopt conventional transport management policies, urban traffic congestion in the city of Cluj-Napoca has become a main contributor to noise pollution and air quality degradation, and has negative effects on the economy and social activities. Given the analysis of the structural and functional characteristics of the city of Cl...

Border effect is a phenomenon that adversely affects the development of the regions. It involves the suppression of links between centers, which limits the development of the areas between these centers. Each type of boundary is generating variously powerful border effect, which can be quantified as the ratio between the expected and actual power of spatial interactions. Expected power of spatial interactions is calculated on the basis of geographic application of the gravity model, calibrated by using data on dai...

The research was aimed to study the pore water volume and chemical composition in the isolated core samples of the Bazhenov source rock formation taken from four different oil fields in West Siberia, Russian Federation. The approach is based on the complex laboratory methods of the investigation such as Dean-Stark and evaporation methods, the X-ray spectrometry, mass-spectrometric study (ICP-MS), water and Pfeffer's solution extracts. It was found that the samples contain three types of pore water: free groundwate...

Uranium mining is the first step in the nuclear fuel cycle to produce energy. In the nuclear fuel cycle, main steps are; Mining / Milling, Conversion, Enrichment, Nuclear Fuel Fabrication, Reactors, Reprocessing of the spent fuel and Waste Management. In the first step, there are three main methods for uranium ore extraction. These are; Open Pit Mining, Underground Mining and In-Situ leaching (ISL/Lixiviation). All forms of mining methods create health risks for people and hazard for the environment. In this study...

Nowadays, after intervals of time without rainfall, heavy rain with very high flow rates in very short time are increasingly more often. If extreme rainfall events, storm sewer networks can not take storm water flows, which frequently occurs with flood damage large, often with loss of life. Duet o the fact that rainwater flows to the emissaries in time, the water table drops. Analyzing the frequency of extreme phenomena rainfall and using climate scenarios we can adapt technical regulations related to sizing colle...

Carbonaceous material (CM) from Outer Carpathians hydrothermal veins was investigated by Raman spectroscopy in order to reveal thermal conditions of its alteration. The studied CM as being found in association with пїЅmarmarosh diamondsпїЅ confirms that the crystallization environment of this mysterious quartz variety is connected with thermally-influenced organic matter. Obtained temperatures in the range of 159 to 205пїЅC are indicative for low to medium hydrothermal conditions. Presented temperatures stay in qu...

The sedimentological sequences along the lower sections of rivers have been created by the alluviation of meandering rivers in historical times. For the rehabilitation measures (focusing on water replenishment to oxbows) with the purpose of enhancing ecosystem services, the detailed hydrogeological study of alluvial deposits and soils is indispensible. Our investigation covers the area lying between the CпїЅn-Szaporca oxbow lake system, under rehabilitation, and the Drava River, which controls groundwater flow. Th...

Today, growing number of ransomware attacks from the cyberspace is getting more and more attention as the danger of immediate closing of business for attacked organizations rises dramatically. High level encryptions used by current versions of ransomware makes it almost impossible to be decrypted in the real time and probability of production going live again for attacked organization could be low. Estimated revenue up to 1 billion USD in 2016 makes this type of cybercrime activity very popular within the hackersп...

The Holy Cross Mountains is Paleozoic massif, 120 km long and 30 km wide is situated in the central part of Poland. It is built of Cambrian to Permian rock sequences and surrounded by Triassic to Cretaceous rocks. All over the massif Quaternary sediments form spotted cover. Paleozoic rocks are folded and dissected by transversal and longitudinal faults. The deposits, that occur between the siliciclastic Lower Devonian and Carbonate Middle Devonian sediments are interesting due to numerous ore mineralization sites....

In Poland information about landfills of power industry waste and the composition of waste deposited on them are largely dispersed. There is no data on the content of rare earth elements in ashes and slags. The article presents a developed information system allowing simultaneous access to a number of data on power industry waste landfills (location, technical and technological data) and data on the rare earth content in deposited ashes and slags. The article presents energy waste landfills (both historical and cu...

Optimal shaping of the agricultural production area is one of the basic conditions that determines the profitability of production. Land divisions, made over the years, contribute to the fragmentation of farm land, reducing their profitability. Parameters on the basis of which an evaluation of the agricultural production area can be made are the elongation of the plot and its area. The methodology developed in the study allows evaluation of the land layout in the village on the basis of the proposed new index of c...

The purpose of the study is to identify the features of additive technology and accordance with them to form a methodology for the economic evaluation of additive technologies application for the titanium production process.The fundamental difference between additive technologies and the traditional is that the improvement of the traditional technological methods aimed at more complete use of waste пїЅ that is, their recycling. The use of additive technologies allows you to move on a new level of rational use of n...