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The object of the study was the Ufimian bituminous sands and sandstones in the east of the East European Platform (Russian Federation). Bituminous sands and sandstones are confined to the Sheshmian horizon (Cisuralian, Ufimian Stage of the General Stratigraphic Scale of Russia). Interest in the study of bituminous rocks is associated with the depletion of traditional oil fields. Initially, bituminous rocks were considered as a source of bitumen for road construction, but in recent years they have been involved in ...

The population of Lviv (Ukraine) together with the suburban area is about 1 million inhabitants, which creates significant anthropogenic pressure on the environment. Suburban area, which is characterized by a wealth of natural resources - diverse landscapes, forests, water sources, therapeutic waters, is exposed to "creeping urbanization". At present, the geography of recreational use of natural objects is considerably expanded. The greatest burden of holidaymakers of today falls on the suburban area of the city w...

For produce electricity from solar energy, it would be necessary for an inverter to convert the continuu current (DC) into alternating current (AC). The inverter is the cause of problems affecting the stability of the power supply system because it is a switching device used to adjust the AC frequency as required. At the same time, it can cause harmonics that result in waveform distortions and affect electronic devices that receive energy. Then it could cause malfunction of the electronic device. In this paper, we...

Lately, in our country, the necessity of expanding the transport infrastructure works has led to the necessity of designing and executing engineering constructions in areas with lands considered difficult in terms of physical and mechanical characteristics. According to the Romanian and European norms, sensitive clay of low consistency is included in the category of difficult land. This paper presents the main research stages of the physico-mechanical properties of sensitive clays found on a section of a highway i...

The target of this article is the providing of the brief information about preventing the dust spreading problems solving during operations of machinery equipment in brown coal open pit mines and in coal dumps. The main part of this paper briefly describes operation tests of the new rotary mist unit realized during last years. The increased concentration of the dust in the air causes important health hazard. The dust is very bother factor. The occurrence of the dust in operation area is the source of danger fire r...

Orchis galilaea is the only Lebanese orchid that is restricted geographically to Lebanon, Palestine and Jordan. It is a terrestrial orchid that attracts its pollinator by sexual deception while offering no reward. The full distribution of this orchid in Lebanon has not been determined. This study is part of ongoing research into the population dynamics of the orchid to form a management plan for its conservation. A Geographic Information System (GIS) was used to identify the habitat characteristics of O. galilaea ...

In the tasks of managing energy resources and energy conservation, it is necessary to forecast the consumption of energy resources for a long period, with the detailed speci-fication of consumption over time intervals. A special case of such a task is the determi-nation of the annual consumption of energy resources and its division into monthly con-sumption, taking into account the changes in climatic conditions, the operating condi-tions of objects and other factors [1-2]. The paper suggests a method for predicti...

The conceptual basis for the creation of a forecast-analytical system that allows to predict the pollution and to control the purification of oil-containing sediments of small rivers are considered in this article. Oil content of bottom sediments creates the risk of secondary water pollution not only by substances entering the sludge. More dangerous products of degradation are formed in the result of the activity of the indigenous microorganisms, that inhabit the bottom of aquatic environment. Forecasting the dyna...

Measuring soil moisture it is usually not performed on a daily time step due to financial costs, time-consuming measurements and variability of the weather. However, since this information is an important part of many hydrological and water management studies, the author tries to solve this situation by proposing a suitable interpolation method. The goal is to predict daily moisture values so that their conformity with the test data is as high as possible. The calculation is based on the use of soil moisture data ...

Sydvatten AB operates the water plant Ringsj? Agency in Stehag, Southern Sweden, and the company has since the 1970s deposited waterworks sludge in the sludge landfill at R?nneholms Mosse (bog), Sj?holmen (WGS84 55В°48'46.1"N 13В°18'25.6"E). In order to handle the produced future waterworks sludge from Ringsj? there was carried out a trenching and stratigraphic study of Ringsj? Agency waterworks sludge. The aim of the project was to roughly determine the mass balance for Fe and Al for the basis of the results to d...

Considering the current context in which all producers are trying to optimise processes and resources, making improvements to traditional practices is of great interest in order to fulfil customer expectations for high quality and safe products. Alternatives to enhance and complement traditional winemaking practices are emerging technologies such as ultrasound addressed towards reducing the fermentation time and increasing the extraction of phenolic compounds, controlling a variety of wine spoilage organisms, wine...

Considering the current context in which all producers are trying to optimise processes and resources, making improvements to traditional practices is of great interest in order to fulfil customer expectations for high quality and safe products. Alternatives to enhance and complement traditional winemaking practices are emerging technologies such as ultrasound addressed towards reducing the fermentation time and increasing the extraction of phenolic compounds, controlling a variety of wine spoilage organisms, wine...

The work described the obtaining and studying the properties of alginate-PLGA matrixes containing agglomerates of hydroxyapatite nanoparticles. Hydroxyapatite (HAP) nanoparticles were obtained by controlled deposition in the presence of a stabilizer - sodium citrate. Two types of nanoparticle lamellar (30 to 50 nm in size) and rod-shaped (150 to 200 nm in length) were used in the work. The size and morphology of the hydroxyapatite nanoparticles were studied using a transmission electron microscope. The composition...

The work described the obtaining and studying the properties of alginate-PLGA matrixes containing agglomerates of hydroxyapatite nanoparticles. Hydroxyapatite (HAP) nanoparticles were obtained by controlled deposition in the presence of a stabilizer - sodium citrate. Two types of nanoparticle lamellar (30 to 50 nm in size) and rod-shaped (150 to 200 nm in length) were used in the work. The size and morphology of the hydroxyapatite nanoparticles were studied using a transmission electron microscope. The composition...

An exceptional occurrence can generally be regarded as a manifestation of risk. In order to handle it, it is necessary to have sufficient amount of information about the risk itself as well as about potential sources and means to deal with the situation it evokes and the preparedness of citizens. In Slovakia, it is mainly the risks of natural character which are, for the purposes of crisis management, evaluated based on a methodology from the year 1994. The ever-extending list of potential risks leads to the need ...

The perforation channels are the only conduits between the reservoir in production and the producing well, so it is quite obvious that their parameters seriously affect the productivity. Under this highly volatile oil price environment aiming for the best productivity has the highest priority. For this reason, the need for understanding the effect of the perforation parameters on the inflow is urgent. In the previous years, Pasztor has proposed a new concept to calculate the pressure drop caused by the perforation...

In modern Russia, geotourism activity is not paid enough attention, there are no regulatory base, the generally accepted system of concepts and terms, a single classification of geological and mining tourism resources. The value of the mining heritage objects in the total assessment of the tourist and recreational potential of the territories is understated, they are not always taken into account in the schemes of recreational zoning. The problems of development of geotourism are considered on the example of the N...

Temporary condition of water resources in the world, the prospects for their security of countries are a matter concern. The world situation with water resource is clearly not satisfactory and remains disturbing in general. In many regions there is co-quantitative depletion of water resources, their deficit becomes increasingly stressful. It is given the modern availability of fresh water in Europe. Russia occupies a leading position according to the total volume of freshwater. However, it is experienced a signifi...

The waste water from the food industry consist of waters of transport and washing of the raw material, technological waters, the condensation or water cooling system, waters resulting from washing and disinfecting rooms of manufacture, machinery and packaging, waters of sanitary facilities. These contain significant quantities of solid residues, represented by the scrap of raw materials, discarded products, unusable tailings from products, etc. The waste waters from the food industry is characterized by a high con...

The international conventions regarding the climate change, namely the Kyoto Protocol and the Paris Agreement, include the recommendations for international organisations that are responsible for the supervision over the transportation other than land transport. The recommendations refer to the efforts of these branches of the economy to reduce global CO2 emissions. It has been assessed that the maritime transport is the source of around 800 Mt of CO2 per year emitted to the atmosphere. Given the forecast regardin...

The effect of K2CO3, K3PO4 Na2CO3, and Na3PO4 on transesterification of rapeseed oil (RO) with methanol was investigated to evaluate their potential for application as biodiesel production catalysts. All anhydrous alkaline salts catalyze transesterification reaction. Higher yield than 95% of rapeseed oil methyl esters (RFAME) was attained in the reaction time from 10 to 300 min. Potassium salts have significantly higher catalytic performance than Na2CO3 and Na3PO4. However, potassium salt recovery from reaction mi...

Forest is the main resource of Latvia. Forests occupy 52% of the total land area of Latvia. Since ancient times forest has provided humans with basic necessities, yet over the course of time the role of forest has changed. Nowadays lumber production plays the primary role, while gathering the other forest products represent forest sub-uses. The research aim is to analyse the production of non-wood forest products in Latvia from various perspectives. The research employed the following methods: monographic and grap...

This article is referring to an analysis regarding the project management of a big size energy efficient commercial building in Romania. There is made a project management analysis status for the construction building project, according to its approved design for the execution. After that, there is shown the project management status analysis for the first operational year, right after the end of the building construction. There are presented the main aspects of the project management tasks for the developed comme...

Due to EU environmental legislation focused on the reduction of waste, all post-consumer tyres must be reused, retreated or recycled. Rubber derived from post-consumer tyres is utilised in a number of engineering applications, however the market solutions for steel components are still not discovered. The main objective of the research was to develop the method of the valuable steel tyre cord application in the construction sector. Studies were conducted on recycled fibres modified concrete properties to examine t...

Magnesium oxychloride (MOC) cement, also called Sorel cement is a type of non-hydraulic cement, formed by mixing magnesium oxide powder with magnesium chloride solution. It was developed in 1867, shortly after the invention of Portland cement. MOC cement has many properties superior to Portland cement including lower carbon emission, lower thermal conductivity, higher fire resistance and excellent bonding ability to a wide range of fillers. For these advantages, MOC cement has been conventionally used for making f...

Property investment is predominately determined by the characteristic features of the good. The specifics of the real estate is shaped by a group of physical, economic and institutional-legal characteristics. The most important from the point of view of the investor involve: stability in place, durability, diversity, deficit, location, protection against inflation, loan security, capital protection, reduction of current expenditure, consumption. Because of the features mentioned above real estate is considered a v...

In recent years, bio-economics and alternative energy sources have become increasingly important in the economic environment of the European Union. The reasons for this development are not only environmental, but also economic benefits. The Union is seeking to increase investment in alternative energy sources, thereby promoting sustainable development, new jobs and the circular economy. Alternative energy sources, also known as renewable energy are inexhaustible sources of energy that do not pollute the environmen...

Various methods are used in the mining of minerals, where the transport of material is an integral part. This paper deals with the transport problem of backfill material from surface stock to underground tank. To solve the problem is applied the capacitive calculation of transport using 2 trucks and a loader. The calculation is complemented by graphic models. The backfill material is available on 5 surface stocks. It is possible to transport the material directly to the workplace from each heap, which is not effec...

This paper presents and supports a speculative hypothesis, the essence of which follows. When continental margins in zones of convergence are buried beneath thrust sheets, fluids expelled from the margin sediments travel into the foreland basin and the continental interior. These tectonic fluids have key roles in phenomena such as faulting, magma generation, migration of hydrocarbons, transport of minerals and metamorphism. The thrust sheet, crudely speaking, acts like a great squeegee, driving fluids ahead of it ...

The paper is focused on the assessment of the public interest in the case of carrying out of investment projects on waterways. The realization of projects on waterways has very wide spectra of whole societal impacts, which include technical, economic, environmental and in some cases also historical aspects of investing. The objective of the paper is to introduce methodological steps for the evaluation of partial variants of investment project on the waterway from the point of view of the predominant public interes...

The composition and properties of drinking water supply systems Ukraine must meet STATE STANDARDS 2.2.4-171-10 "Hygienic requirements for drinking water intended for human consumption". According to them, the concentration of iron for drinking water should not exceed 0,2 mg/dm3. Increased concentrations of iron dramatically reduce its consumer qualities. Water gets an unpleasant taste, yellow-brown color and becomes unusable for use, it is a reason of the rejection in the textile, food, paper and cosmetic industry...

One of the possible innovative ways how to process and utilize waste is its pyrolysis in the pyrolysis unit Pyromatic 250. The tests were conducted by Ostravsk? LTS, a.s. in laboratory conditions in the ENET Center of V?B-TU Ostrava. The input material was provided by MEVAPACK, s.r.o. Pyrolysis is a thermal decomposition of organic substances without access of oxygen. This decomposition produces three fractions ? liquid fraction, gaseous fraction and a solid residue. These can be used for heating of the pyrolysis ...

The process of generation of geometric documentation is an important tasks in the field of conservation and management of cultural heritage objects. The 3D documentation is commonly used in conservation, restoration and analysis of historical objects and sites. The recent development of low-cost photography such as mobile phones, digital compact cameras or action cameras are now becoming dependable sources of data, which allow to create reliable and accurate documentation for different types of cultural heritage o...

The article presents the second part of the results of asymmetrical disc tools laboratory tests. The first part of this study was presented at SGEM International Conference in 2017. Asymmetrical disc mining tools can be used for mechanical mining of hard rocks, as an alternative to blasting methods. The study was conducted on a dedicated laboratory stand, with an installed drive power of 80 kW. Stand consists of rotating rock sample, mined by special plate equipped with asymmetrical disc tools by a so-called under...

Natural sources can contribute with significant radiation quantities toward the total radiation exposure that humans receive. The majority of this natural radiation is harmless to humans in the ambient environment. However, radon, a large component of the natural radiation which humans are exposed to, can pose a threat to the workers health when radon gas accumulates in poorly ventilated occupational settings. Radon is the most hazardous natural source of radiation. Even if it is an inert gas, having no color, tas...

This study investigates content of radioactive gas radon ? Rn-222 in a number of sources of surface waters of different type (spring, artesian, well, river etc.), located in the territory of Kartli artesian basin, Georgia. Water samples were selected from 23 sources. Researches were carried out in the period January-December; samples from several locations were selected monthly. Electronic radon detector RAD7 was used for radon content determination. It was established, that radon content ranged depending on the s...

It is already a fact that at present a major source of obtaining competitive advantage is related to the green development of enterprises. Sustainability is an important element in the core values of the consumers belonging to the Millennial Generation, which is the most numerous living generation nowadays. In this context, all projects related to the implementation of sustainability respect the profile of this new consumer. In 1992, the European Union Ecolabel has been established for several types of products an...

Romania is one of the most seismic-prone countries in Europe due to the periodically occurrence of strong intermediate-depth earthquakes in Vrancea seismogenic zone. In the last decades, many efforts were done to gather macroseismic intensities in case of felt Vrancea earthquakes and additionally an online environment was developed for the automatic approximation of the intensity from people feedback. Besides the extended scientific studies, the near real time estimation of the macroseismic intensity recently beca...

This paper presents a recent study regarding choosing and optimizing of the appropriate test methods to characterization and analysis of used oils from different sectors of activity, in order to evaluate the heavy metal content. In the first step, the samples preparation stage for metal analysis, a number of preparation methods have been tested and finally chosen as optimal, a microwave digestion method. For comparison the metals were analyzed by inductively coupled plasma mass spectrometry (ICP-MS) and atomic abs...

The subject undertaken in the article is poorly researched so far, and at the same time very current, because it concerns the space management strategy in large European cities in the aspect of sustainable spatial development policy. It concerns certain type of Space Left Over After Planning ? areas under elevated infrastructure (bridges, viaducts and flyovers). Underspaces either mostly remain undeveloped for long time or are intended for parking lots or technical facilities. Lack of inadequate management and neg...

The paramagnetic properties of core samples from the section of the reference well were performed on 62 samples (1478,1? ? 1455,3? interval) Zadon?s horizon Famennian period by electron paramagnetic resonance (EPR) for mineral associations of the of the Upper Devonian deposits of the Volga-Ural region of the Republic of Tatarstan. Thus, a complex of geochemical EPR parameters of rocks (Mn2+, Fe3+ in limestones, anionic complexes SO3, SO2, PO2, alfa = 15 * I (Mg) / I (Ca) ions Mn positions Mg / Ca in dolomite, C600...

Project management is a recognized and used technique for the preparation and implementation of projects. There are several different methodologies worldwide, which try to achieve the same goal by different approaches - previously defined goal of the project. In construction industry, the projects are always connected to the particular type of construction. However, the goal of the project is not the realised construction itself, but it is the means how to achieve it. Construction production is characterized, amon...

Widespread use of natural stones has been a habit that has been going on for centuries. In addition to this widespread use, this material causes a significant amount of waste materials to be exposed during the processing of these materials. This is an economic problem in terms of both environmental pollution and disposal in waste materials. Therefore, the evaluation of these natural rock wastes is an important issue. In this study, it is aimed to recover the waste materials in natural stone workshops in Kahramanma...

The automotive industry is today a sector that significantly influences and at the same time develops other sectors of the national economy such as engineering, metallurgical, electrical, chemical or construction industries. The paper deals with the possibility of recycling recovery of selected components from vehicles over their lifetime. The authors focus on the components of external vehicle lights (front lights, rear group lights, front fog lights, side direction lights, branding light). It presents its own re...

Waste poses a growing problem is the contemporary world. The volume of household waste per resident continues to increase at a staggering rate. In line with the EU requirements, growing proportions of waste should be recycled, and Poland is expected to recycle 50% of its entire waste stream by 2020. Biological waste can also be recycled, but the recovery rate for this waste fraction is close to zero in Poland. The above applies particularly to biological waste from households. The quantity of OFMSW generated by a ...

In the polluted area with emissions from Zlatna metallurgical plant, more than 50,000 ha of agricultural and forestry land has been affected by pollution over a time period of 200 years. Approximately 5,000 ha from these lands were severe and extremely polluted. The vegetation was completely destroyed on more than 2,000 ha, leading to intense erosion processes. The forest vegetal cover was completely destroyed, and the trees had some dry branches, spots on leaves, bark burns and even completely destroyed, the oak ...

The paper presents the results of the experiments on a sterile dump resulted from surface mining of lignite in Rovinari, Gorj County, where, was been tested the effect of a variety of fertilizer as: liquid fertilizers based on humates extracted from lignite, complex mineral fertilizer (N105 P105 K105 and N150 P150 K150), farmyard manure (20, 40 and 60 t/ha), compost (20, 40 and 60 t/ha), and the mixture of the two types of organic fertilizers with mineral fertilizer. Two test plants, corn, and sunflowers have been...

This paper presents several issues regarding the dynamic behaviour of the pedestrian footbridges structure under the action of general loads generated by the pedestrians? displacement, together with the correlated traffic comfort of the pedestrians crossing the structure. The footbridge crossing comfort criterion requires the inclusion of vibration frequencies and accelerations of the structures in certain limits so that the vibration amplification or resonance is avoided. The paper puts under investigation six fo...

Coals, being heterogeneous matter in general have very complex composition. In South Africa, coal is mainly utilized for electricity generation followed by metallurgical and industrial usages. During the combustion of coal as the main utilization process, there are different chemical components released and these have been found to be the cause of many challenges of using coal for fuel. Out of many challenges of coal utilization, there is the release of SOx, NOx and other harmful minerals, which are highly attribu...

The paper deals with the negative effects of mining on the transport network in the Moravian-Silesian area, especially is focused on problems reflected in construction layers of transport-related structures (railways, roads, area storage and handling areas). With the extraction downturn, the sources and objectives of transport have changed including the characteristics of transport flows of all traffic roads and connections. Various measures for all transport modes situated in Moravian-Silesian region are identifi...