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Wind power, via wind turbine, transforms mechanical energy to electrical energy. It is an alternative to burning fossil fuels, it is plentiful, renewable, widely distributed, clean, produces no greenhouse gas emissions during operation, consumes no water, and uses little surface of land. The net effects on the environment are far less problematic than those of fossil fuel sources. This paper proposes a forecasting model based on time series technique for wind power energy generation. The increasing use of renewabl...

One of the major problems associated with excavation of the copper deposits in underground mines in Poland is the relatively high level of seismic activity. Numerous high-energy tremors can negatively affect the stability of underground workings and can have a destructive impact on the infrastructure located at the surface as well. As predicted, the seismic activity increases along with the depth of mining operations. Therefore, in order to face these threats, a number of organizational and technical prevention me...

Tiny houses and buildings, as well as their associated lifestyles, have become a global phenomenon which is receiving a significant amount of media attention, in addition to being quite popular on the Internet. While living in a tiny house may seem attractive to and is even celebrated by some, the usable floor areas offered by most such buildings are far below what would currently be considered a proper housing standard and therefore can be considered as having a detrimental impact on quality of life. In the artic...

Experience in the use of enhanced oil recovery methods shows that the main factor responsible for efficiency of the treatment is the correct choice of a particular technology for certain geological and physical reservoir conditions and the stage of development. Considering complex geological structure and low productivity of high-viscosity oil reservoirs in the Volga-Ural petroleum province, development of an integrated stimulation technology is a priority. The paper presents a promising concept of formation stimu...

This paper reports on a study of the sorption of toluene vapours on three medium-volatile bituminous coals from the Vaclavovice, Paskov and Trojanovice mines in the Upper Silesian Basin in the Czech Republic. The coal samples were characterized using various petrographic, chemical and porous texture analysis methods. Toluene sorption and desorption isotherms were measured on powdered coal samples at temperatures of 30°C and 50°C and at pressures ranging up to saturation, using a gravimetric sorption analyzer. The ...

The key features of good education are productivity and efficiency. At present, there is fragmentation in the study content and study process; too much emphasis is placed on isolated, passive learning and the content of teaching is not sufficiently related to real life situations. In order to introduce more effective education in practice, better professional development is needed. There must be a clear link between the practical needs and the teaching work. An effective education system is important because it de...

Generational conflicts exist because of different needs, goals and values, as well as differences in the expected outcome. Over the course of the century, work has become a means of challenge, while humanity has evolved from a generation of goods to a hyperconsumer society. The purpose of this study is to analyze ways of resolving conflicts for X and Y generation employees to identify differences and understand possible ways to compromise decision making. The tasks of the study are to evaluate these generational d...

The concept of bioeconomy began to actively take shape in the world in the mid-2000s, when the Organization for Economic Cooperation and Development (OECD) and the European Commission (EC) began to develop programs to promote the bioeconomy in different countries. Documentation in the field of bioeconomy is a challenge for research, as official statistics report data on traditional sectors without distinguishing between synthetic and biological production. Therefore, indicators for the bioeconomic field are curren...

The most pronounced observed climate change is the rising surface temperature of the Earth. In view of extreme weather events, existing risks and possible consequences, adaptation to the adverse effects of climate change has become a global challenge in recent decades. The interaction between climate change and its possible consequences is a complex and very dynamic system that needs a great deal of information to be properly managed. These facts were also reflected in the Council of the European Union, which appr...

The present paper comprises a complex topographic survey for the identification and registration of a farm type immobile consisting of company headquarters, stables, silos and concrete slabs for registration in the land book. The farm where the topographic works were executed is a farm specializing in the breeding and fattening of buffaloes, the production of milk and its processing. It was set up in 2007, and the initial constructions were built between 2007 and 2015. The farm is located at the entrance to Pecica...

Nowadays, according to the current century, the one of speed and information, the way of calculating the volumes of aggregates is desired to be much faster and more accurate in every aspect. The volume designates the property of a body to have three-dimensionality, that is development along three perpendicular axes on which the length, width and height are measured. All three those dimensions are actually length values that define the place which that object occupies in space. The theme of the project is to calcul...

In the paper we studied toxicity of petroleum on germination and seedling stage of plant using phytotoxicity tests. These tests measure the decrease or absence of germination and root elongation only after a few days of exposure to contaminated soils compared to unpolluted soil (control). The plant seeds used were rape (Brassica napus), white mustard (Sinapis alba), peas (Pisum sativum) and rye (Secale cereals). The soil used in the experiments was a reference OECD soil for these types of tests. The soil was pollu...

There are the structural-material complexes of the rocks in the crystalline basement of the Volga-Ural oil and gas province, which characterized by different composition and structural position. The biggest structure, which occupies a central position in the region, is the Tatar arch. The Tatar arch is a large megablock of the lithosphere (granite-gneiss core) bounded by mobile zones (graben-shaped deflections). They are associated with pre-metamorphic basic magmatism. The areas of the crust bounding and separatin...

There are a number of traffic calming measures that can be employed to protect vulnerable road users (VRU). Traffic calming is of critical importance in small towns and villages crossed by regional roads where it is necessary to resolve a number of conflicting traffic-related interests on stretch of a road that is just 500 m to 1,200 m long. Pedestrian refuges are one of the most common measures used to protect vulnerable road users. Considering the statutory speed limit of 50 km/h applying in daytime to all roads...

This article describes the key features of the automatic speech recognition systems training process that can be used in a work of chat bot or voice assistant. Importance of research in this area is grazed. Difference between chat bot, voice helper and voice assistance are explained. Basic requirements for correct chat bot usage are formulated. Some common automatic speech recognition systems are reviewed. Kaldi and CMU Sphinx has been used as an open source systems? example. The whole installation and training pr...

At the Moscow University of Geodesy and Cartography (MIIGAiK) a new approach to learning C++ programming for students specializing in cartography and geodesy was developed. The training programs in C++ for students were written. Programs with geodetic content prepare students, future surveyors and cartographers to solve their specific tasks more purposefully than common standard programs and tasks. One of those programs calculates the plane rectangular coordinates of an additional searched point according to Gauss...

Krasnoyarsk Territory is a region of Russia, where the diversified economy of the country is represented. There are mining, metallurgical, petrochemical, timber, woodworking and other industries. Such a developed infrastructure of the economy provides stable needs for qualified specialists-engineers, technologists, power engineering specialists. It is clear that the system of higher and secondary vocational education is aimed at training personnel who are ready to participate in the regional development effectivel...

The problems of geodynamic safety assurance in mining are common for many countries with developed mining industries. Considerable results have been achieved in Russia in solving rockburst problem, yet in the last decades this problem is transforming into man-triggered seismicity problem. Induced earthquakes in areas where mines had been flooded, seismic activity in previously safe regions, re-activation of tectonic faults, violent man-triggered earthquakes in open pit operations have been registered. As a matter ...

The calculation of wave height, - length and - period changes which result from trans-formation by currents and bottom are needed when solving engineering problems of sea and river hydraulics. It is possible to carry to number of such problems also a problem of construction and operation of sea channels which has big economic value. Modern sea channels can have width several hundreds of meters and difference of depths on the way to the channel and on an axis of the channel twice and more. Therefore, in calcula-tio...

The super-compaction is the process used to conversion of the radioactive waste into a stable, compacted solid form as a cylindrical pellet. A characteristic of the compaction is that it reduces the volume of waste but the amount of radioactivity remains the same. A super-compaction facility operating under a force of 2000 tones which compresses the material contained in the standard drum of 220 l is used for treatment of radioactive waste. A compressed form, reduced by its high with the diameter of the metal mold...

In technical literature many specialized scientific materials are available which treat the elimination of solids and oil from water injection, the newest approaches being oriented towards the process with low power consumption as with most modern facilities in order to improve the available technologies. For groundwater, the analyzes that are carried out are to determine the degree of pollution with liquid or gaseous petroleum products. The natural state of the underground water is influenced by the characteristi...

Excessive iron causes hygienic and technical defects in the supply of drinking and service water. Even small iron concentrations can cause excessive bacterial proliferation, which, from a hygienic point of view, adversely affects the properties of water, such as turbidity, color, taste. In the case of small water sources, it is not appropriate to use demanding technological assemblies. Adsorption to a suitable adsorption material is most commonly used for water treatment. Compared to synthetic zeolites, the afford...

Forests and the land where the forests grow are some of the key natural resources in Latvia. Forests occupy half of the total area of Latvia. Unlike other countries where deforestation is a problem, the forest area increases in Latvia owing to natural and artificial afforestation activities. The paper analysed changes in the reforested and afforested areas in Latvia in the period 2007-2017 and found that the most essential factors contributing to the reforestation and afforestation were national and European Union...

The road and rail infrastructure together with the technical infrastructure is a determining factor of the present daylife of human society, function of cities and municipalities. With the internationally developing cooperation and business within the European countries, the number of transport constructions of the motorway character grows over the areas, where it is necessary to build from the technically operational reasons extensive flyovers or tunnel constructions. The number of these constructions must meet r...

The objective of this paper is to analyze the performances (capacity factor, rated capacity, operating capacity, annul electricity production) of some of the most used wind turbines in nearshore and offshore operations. The target area of this study is the Black Sea. More precisely, twelve points were chosen for this analysis. The wind fields (zonal and meridional velocity at 10-meter height) from four datasets were used to assess the wind turbines performances. The first one is ERA-Interim. This dataset is a glob...

Volatile organic compounds (VOCs) play an important role in the IAQ evaluation process. Chemical contaminants emitted by dry building material and indoor equipment influence long-term indoor air quality. VOCs adversely affect both occupant comfort, productivity and health. Most of the health hazards related to VOCs emissions occur during the first months of occupation or after refurbishing the building. At present, most people generally spend up to 90% of their daily time in the indoor environment. Humans spend al...

Oxidized ferruginous quartzites are located within BIF deposits of the Precambrian iron-siliceous formation. They form thick layers, which overlap magnetite quartzite varieties - basic minerals for mining and processing enterprises. Oxidized ore bodies are located in the lower parts of section of weathered rocks and their thickness varies from the first tens to hundreds of meters increasing from north to south along the Kryvyi Rih structure. Main questions of commercial significance definition of oxidized ferrugin...

This paper depicts the early phase of development for an integrated system tailored for emergency response actions and remote sensing. This paper focuses on the support system envisioned as an integrated Unmanned Aerial System (UAS) system that consists of one or more ultralight multifunctional aerial units with a configuration that can be adapted to the nature of the intervention: monitoring, mapping, observation and logistics etc. Starting from wing airfoil and material selection and ending with the experimental...

The thickness of the blood-brain barrier (BBB) basement membrane (BM) in vivo is in the range of 20 - 200 nm. Most widely used commercially available microporous polycarbonate (PC), polyethylene terephthalate (PET) or polytetrafluoroethylene (PTFE) membranes are 10 to 50 ?m thick. This is a substantial obstacle for communication of cells growing on both sides of membrane, like astrocytes, pericytes and endothelial cells within in vitro BBB model. For the last several years the active development of ultrathin micro...

Modernization of the real estate cadastre is a set of technical, organizational and administrative activities aimed at gradual improvement of the quality of data collected there. In the real estate cadastre's database, the key importance to the quality is whether the accuracy of the location of objects corresponds to the assumed formal and legal purposes and the expectations of users. The accuracy of determination of coordinates of border points has a direct impact on the uncertainty of area estimation, which is a...

The purpose of this research is the treatment of Domanik shale oil (DSO) by supercritical water conditions. The experiments were carried out at 400 oC and with different residence times at 140, 300 and 480 min. The DSO is powdered and mixed with distilled water then loaded in the batch reactor and they were heated until reach the desired conditions at 400 °C and of 265.9 bars. The results reveal a great dependence of the product yield and quality at the residence time. Similarly, the obtained products were analyze...

At present, heavy oil and natural bitumen in supplying the world?s demand for fuels and petrochemical feedstock is increasing, because of the reduction of light traditional oil reserves. Heavy oil is characterized by its high viscosity, which creates difficulties in it?s productions as well as transportations to refineries. Currently there are several ways to reduce viscosity of heavy oil to facilitate the extraction process. One of the most important methods is steam injection, but with the passage of time, this ...

As a big agricultural country, China is experiencing rapid urbanization, and urban agriculture plays a very important role. In this paper, we collected the basic agricultural economic data of the Changsha-Zhuzhou- Xiangtan City Circle, one of the nine urban clusters in the Yangtze River Economic Belt in south-central China with a vital role in grain production, and constructed-16 indicators to evaluate the production-economic function, cultural leisure function and ecological function using geography model and 1KM...

The last century is characterized by rapid development of cities, agglomerations and urban areas. Urban space needs to serve a variety of human needs: housing, working, social interaction, leisure, and mobility of persons and goods. Human beings also need nature within their living areas; green spots for recreation and relaxation. Trees, parks and other greenery helps provide healthy living conditions by cleaning the air of pollutants, absorbing noise, and regulating humidity. Beyond this direct anthropocentric (h...

Very large trees are considered as key green structures in an urban green infrastructure. Due to the general focus on old and very large trees (with high aesthetic values in green urban areas), there is a significant knowledge gap related to the role of young trees in cities. This study is based on results of field mapping of cultural important trees in the urban area of the famous European historical city of Prague. We have investigated both very large and young trees ? just only trees with function of living sym...

A dangerous problem that many countries have to face is the existence of buried explosive devices, responsible for high numbers of civilian fatalities. Their detection and removal are therefore mandatory, which has led in recent years to the development of different techniques that can ensure safer and more efficient demining operations. Geophysical techniques have been employed, since allow ground search in a non-invasive, rapid and cost-effective way, with special interest being given to ground penetrating radar...

As a rule, well-log porosity is used as a reference information in the process of reservoir porosity model construction. At the same time, the regions of the model, where the porosity values are obtained by interpolating the well data, are characterized by a decrease in detail with distance from the wells, as well as by uncertainty in the interwell space. The uncertainty arising from interpolation can be significantly reduced as a result of the integrated use of well logging and 3D seismic data, and the usefulness...

The article discusses an urgent problem of designing systems for ship ballast water (BW) treatment ensuring high efficiency at low power consumption and small mass and size. Transportation of invasive organisms with ballast water presents a serious danger for the world ocean. According to the International Marine Organization (IMO), the BW global turnover reaches 12 billion tons annually. A number of species of aquatic organisms transferred daily with ballast water exceeds 7,000. Many of them not only survive in b...

In this paper, the artificial neural network (ANN) technique is used to predict the wear resistance e under dry sliding conditions of some iron-based powder metallurgy materials subjected to a thermochemical treatment. The analyzed specimens were obtained using the conventional powder metallurgy route: mixing the raw powders with 1% zinc stearate, cold compacting at a pressure of 400 MPa and sintering at a temperature of 1150°C for 60 minutes. Following the sintering step, the specimens were subjected to carburizi...

Microorganisms are ubiquitous in nature and possess unique biochemical possibilities to assimilate a vast array of available substrates and produce unique se metabolit and biotransformation pathways. Long-term exposure to elevated arsenic and antimony concentrations has led to the selection of specifically resistant autochthonous microorganisms. In the cultivable component of isolated bacterial microorganisms, Bacillus was identified as the dominant genus, which has been represented by nine species. Interesting ph...

A passive method is proposed in this research for minimization of the temperature drift of a strapdown inertial navigation system with fiber optic gyroscopes and accelerometers by means of reduction of the temperature differences between the structural components of individual gyroscopes as well as between gyroscopes and accelerometers. For this purpose, theoretically possible use of nanostructured composite materials based on carbon nanotubes and characterized by increased thermal conductivity in individual struc...

This paper aims to find the influence of the climate on the travel behavior in various geographical areas of the Czech Republic. The travel behavior is to be represented by the modal split of two main groups of travelers ? work commuters and school commuters. The basic geographic areas to be used for the analysis will be the territories of various municipalities. The climate is defined by average annual temperature and average annual precipitation, both from the period 1991 to 2010. Both climatic conditions are av...

Nowadays, when the whole world is increasingly engaged in environmental protection, it is necessary to come up with a fuel alternative for transport, which means generally abandoning the use of non-renewable resources (fossil fuels), as they are one of the many factors influencing the emergence of greenhouse gases and its associated global warming. In today's Europe, pressure is being put mainly on automotive companies, to search for sources other than conventional fuels. At present, there is a big boom in the are...

When teaching in schools, especially in vocational subjects, it is very important to attract and motivate students to work independently, not only to remember important facts, but also to develop their ability to seek new solutions independently. One of the active assistants in achieving this goal can be the active use of information technology that is close to the current young person. In addition, it is essential not only to learn new knowledge in education, but also to educate them towards an active approach to...

The core of renewable natural resources of any nation is its natural reserve fund. The issue of natural ecosystems preserving is becoming more and more actual at the present stage in terms of increasing human influence on the environment. The article presents methodical approaches to improving the system of background environmental monitoring, increasing of its objectivity and data submission visual aspects on the basis of GIS - technologies - taking into account the status, characteristics and specifics of protec...

Cultivation of high-yielding crops (winter wheat, corn, oil seed rape etc.) represents the only opportunity for Czech farmers to achieve profitable economic results. On the other hand, the above crops have significant demands on nutrients intake from soil. The withdrawn nutrients must be returned which is mainly carried out by mineral fertilizes. Nevertheless, it is not sustainable way from the long-term point of view. The most convenient source of nutrients are fertilizers of organic origin (compost, manure etc.)...

The article deals with the impact of global climate change and temperature warming up on emission production during en-route flight. Consequently, analyses the effects of carbon dioxide gases production on the environment and ecology. The main aim of this article is to do research the amount of emission (CO2) production during flight in different meteorological condition and make an evaluation of how it can affect the global climate change, ecology and greenhouse effect. The theoretical part of the article focused...

The modern state of the most water bodies and coastal zones does not comply with the standards. Water pollution indicates the need for water treatment systems. For this goal, the proposed were used of biological engineering structures with higher aquatic vegetation ? bioplato (floating plant islands). The cleaning process occurs due to the natural ability of a number of living organisms and plants to absorb, decompose and recycle pollutants. Despite the enormous advantages as by as: simplicity, cost-effectiveness ...

This research deals with the aspects of use of the heat balance method for calculation of three-dimensional non-uniform non-steady temperature fields of complex optoelectronic systems through the example of a measuring unit based on fiber optic gyroscopes and microelectromechanical accelerometers. The main principles of and approaches to development of a mathematical model of the temperature field of the unit under consideration on the basis of the heat balance method have been set forth. The adequacy of the devel...

In this article, we examine the questions of using an open-source software platform Open Simulator 0.9.0 for virtual reconstruction of historically significant industrial facilities in the form of a virtual museum. Virtual museums have extensive educational and research capacity and contribute actively to preservation of cultural heritage. The use of modern information technologies allows drawing attention to the monuments of historical and cultural importance, as well as forming their modern image, and causing a ...