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The article presents the results of asymmetrical disk tools laboratory tests. This type of mining tools can be used for mechanical mining of hard rocks, among others in the solution of innovative roadheader head, presented on SGEM conference in 2016. The study was conducted at 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 disk tools. The rock is mined using undercutting technique, also known as Wohlemy...

Conveyor belts operated on belt conveyors are subjected to a variety of loads that lead to damage. Belts undergo wear in a process that depends on the type of conveyor, its length, the material transported and the working site [2, 3, 5, 8]. Laboratory evaluation of a conveyor beltпїЅs lifetime requires determining a number of its properties, such as tensile strength, longitudinal and transverse elongation strength, delamination strength, shear strength, flammability, and resistance to low temperatures, as well as ...

The use of local soil as well as the recycling of existing structures such as road pavements using hydraulic binders is a beneficial technical solution, both in terms of economics and protection of the EarthпїЅs natural resources. Parameters of the soil stabilized with binders significantly affect the load bearing capacity and durability of the built structures. One of the important mechanical parameters applied in the analysis and design of soil structures is the modulus. Determination of the exact value of this ...

Enzymes are major components of organism defense against toxic chemicals in their environment. Despite the passage of more than 200 million years of life presence these enzymes now play an important role in detoxifying chemicals man-made addiction and it may be a useful biomarker. Lactate dehydrogenase (LDH or LD) is intracellular enzyme year found early in all living cells (animals, plants, and prokaryotes). LDH catalyzes the conversion of pyruvic acid to lactic acid and back, as it converts NAD + to NADH and bac...

Changes of the lake shoreline of glacial lakes in Tatras are significant indicator of postglacial evolution of their lake basins. In this research we evaluate the lake shoreline changes of the tatras lakes on the historical and actual analysis of the orthophoto maps from period 1949-2015. We very precisely evaluated the dynamics of the lake shoreline with application of retrospective analysis of remote sensing materials from that period. In some cases it led to quite marked shrinkage of open water lake areas as th...

In this contribution we focus on the development of land use changes in two vineyard villages - RybnпїЅk and ?ajkov. Selected villages have very old vineyard tradition. Until now the traditional agricultural landscape (TAL) is fragmentary preserved here. They are localized in the Middle-Hron river region (Slovakia). The aim of this article is to evaluate and compare changes of secondary landscape structure (SLS) in two time periods (1949-1986 and 1986-2016). Processes of maps visualization were done in ArcGIS 10.2...

Experience of radiological contamination of land, especially after the Chernobyl and Fukushima disasters has shown the need to explore possible ways of capturing radionuclides in the area affected and adapting the landscape management to this purpose ex-ante the considered accident in terms of prevention. The project "Minimizing the impact of radiation contamination on land in the emergency zone of TemelпїЅn NPP" (2012-2015), dealt with the possibility of utilization of wetlands as retention sites for water carryi...

Pre-failed landslides occurring in quasi-homogeneous soils are difficult to be characterized from the standpoint of their partially formed failure surface geometry. The paper presents the combined geotechnical investigation methods (fully sampled boreholes with laboratory tests, in-situ dynamic probing and so on) giving a very accurate point-wise description of the soil, with geophysical methods (electric resistivity tomography пїЅ ERT, seismic refraction and multichannel analysis of surface waves пїЅ MASW) provid...

The Rare Earth Elements (REE) have been classified as resources critical for the European Union and divided into: light rare earth elements and heavy rare earth elements. The demand for REE is constantly increasing, which is connected with the wide range of their applications. The article presents the results of research conducted to determine the concentration of Rare Earth Elements in fly ashes obtained from the combustion of coal at the Rybnik Power Plant. The concentrations were measured using the ICP-MS and S...

INSPIRE directive describes how infrastructure for spatial information in European community should be developed. The directive provides standard (implementing rules) for European Union member statesпїЅ spatial data to ensure that spatial data is compatible in trans-boundary context. The directive covers 34 themes in 3 annexes, including such themes as: Agricultural and aquaculture facilities, Energy Resources, Environmental monitoring Facilities, Mineral Resources, Production and industrial facilities, Sea region...

This study aimed to investigate: i) the chemical composition and ii) the antimicrobial properties of the essential oil isolated from Lavandula angustifolia пїЅSevtopolisпїЅ cultivated in western Romania. The essential oil, obtained by steam distillation, was evaluated by GC/MS. The inhibitory effects of Lavandula angustifolia пїЅSevtopolisпїЅ essential oil were tested using the Kirby-Bauer agar disc diffusion method against five common food-related bacteria: Staphylococcus aureus (ATCC 25923), Pseudomonas aerugino...

Denitrifying bioreactors can be used to reduce high nitrate concentrations in agricultural runoff in situ. They operate on the basis of the flow of nitrate-rich water through a filtration medium containing biodegradable organic matter that serves as an organic carbon source for denitrification bacteria. However, undesirable excessive leaching of organic compounds from the bioreactor fillings can occur, especially in the start-up phase. The paper presents the results of static leaching tests conducted on six differ...

Crisis management is closely related to the emergency event prevention, crisis reaction and after crisis prevention. Each country within its legislative frame has involved certainly higher competencies of Rescue system forces, Integrated system forces or firefighters who are mostly acting part of Integrated rescue system in Slovakia. Recently there is a negative trend in European cities connected to aggressive behaviour against firefighters disabling them to do their job. It was also observed and very well describ...

In spatial data processing, the area of legislation is crucial but often neglected by the expert's community. Knowledge of the various legal aspects related to the data collection, data processing, and analysis of data, as well as publishing the results of spatial analysis and its visualization, is an essential prerequisite for effective work. Legislative aspects are understood as a set of legislative standards, their relationships and their influence on other fields of human activity. In the context of geoinforma...

The thermal insulation of the building envelope is a very important factor for the total energy consumption of buildings. Considering the fact that more than 40% of the global energy use and the corresponding CO2 emissions comes from the building sector, the choice of good thermal insulation products can contribute to large energy savings. The choice of thermal insulation products should not be solely made based on installation and operational costs, but rather on the global environmental impact and energy demand ...

This study aims to valorise the mineral wastes in particular glass wastes, brick wastes and clay to produce granulated foam glass at different characteristics (G1: Granulate foam glass without additive; G2: Granulate foam glass with 10% clay and Granulate foam glass with 10% Brick wastes). The aggregates of foam glass were manufactured at a temperature 850 пїЅ C from glass wastes (cullet), brick wastes, clay and limestone as a foaming agent. Mixtures of Self-compacting mortar have been developed with elaborated fo...

Recent surge in the number of studies on inorganic nanoparticles has raised concerns over possible commercial implication of the same. The developmental stage of regulations and standards controlling the same amplifies this problem. In this perspective, we tried to analyze the current trends on lignocellulose nanomaterials (viz. Nanocellulose and lignin) and its global potential to offer an environmentally benign alternate. We used number of studies indexed in Scopus database to get an idea of trends. An additiona...

The problems of regeneration and recycling of the calcareous component in the composition of chemical and metallurgical industry waste products are studied. The possibility of obtaining chemically precipitated calcium carbonate from gypsum wastes and slimes of alumina production is shown on the basis of a number of low-temperature processes that ensure binding of carbon dioxide as part of production emissions. The influence of quality of raw materials on the volume of belite sludge which is formed during the proce...

The energy recuperation systems are being increasingly used in modern non-hybrid cars. It allows to recover part of the energy without mounting an additional electric engines and a set of batteries with high capacity in the vehicle. Recuperation of energy, however, involves a number of limitations resulting from: traffic conditions, vehicle construction parameters, electrical energy demand in the car and from the construction of the energy recovery system. In this article presented the results of road tests in a r...

Bulgarian territory is subjected to impact of almost all negative and destructive geological processes and phenomena. The engineering estimation of these hazards requires knowledge of their origin, evaluation of potential occurrence of these phenomena, and their resulting risk. The liquefaction of weak soils under dynamic impacts is one of the processes that compose the geological hazards. This phenomenon occurs in certain areas during strong earthquakes. It involves a loss of bearing capacity of sediments, terrai...

Within the eastern Siberian platform are known objects worth mentioning from the standpoint of organizing the extraction of heavy oil and bitumen. The Siberian platform is characterized by a wide spreading of the surface-bearing and shallow-lying rocks saturated with products of hypergenic oil conversion. The article describes the results of lithologic and petrographic studies of bitumen-saturated carbonate rocks of Anabar anteclise southern slope (Daldyno-Alakit region). The upper part of the section of the sedim...

During period of preparing the construction of halls of the industrial park, according to the geotechnical investigation were found adverse properties of soil. Below the ground surface was situated 5.5 m soft clay layer, deeper clayey gravel. Due to the nearby located river, the groundwater level was found just below the ground surface. Strict requirements to fulfilling first of all the serviceability limit state have led to the preparing the load test in real geological conditions in scale 1:1. Expecting load on ...

Total duration of complex flows depends on many factors, one of them being the sequence of work locations in the work program. The aim of this research is to find a simple method which would allow us to determine the best work location sequencing in the location-based work program from work duration point of view. This was achieved by creating a synthetic criterion which allows the user to determine the optimal work location sequencing without having to simulate all of the scenarios upfront. The method discussed i...

Nowadays we see an increase in traffic intensity all around the world. The traffic infrastructure is extremely loaded by the traffic, which causes deformation of its parts. In addition to traffic load, significant is the effect of the weather conditions (wind, sunshine, temperature changes). All the mentioned effects cause changes in the spatial position and in the shape of the bridge structures. Due to these facts, geodetic monitoring is an integral part of bridge structures diagnosis and gives important informat...

The worldwide development of studies concerning volcanic-related deposits caused renewed interest in epithermal mineralizations in Sardinia and a prospecting program was developed in the eighties. A series of field surveys showed that hydrothermal alteration halos are widespread in the Tertiary volcanic terrains, and AuпїЅAg bearing mineralized outcrops were detected in a few localities. An exploration program was performed which reached the ore evaluation stage in two areas. The first economically viable gold dep...

Traditionally, Cultural Heritage Assets are valuable artifacts requiring special - time consuming and costly - manual preservation procedures and always subject to accidentally or intentional damage. The paper main objective are: Using low-cost & real time or late -time (client-server) methodologies at all digital documentation phase, to make CHA accessible to all interested in people by supporting virtual mobility without CHA preservation cost and using CHA digital copies and exact 3d replicasto unlock the potent...

For the analysis of heavy oil samples of the Ashalchinskoye deposit the combined nuclear magnetic resonance (NMR) method to measure the free-induction decay (FID) together with the Carr-Purcell-Meiboom-Gill (CPMG) echo signalпїЅs decay was used. The measurements were carried out on a NMR analyzer Chromatek-Proton 20M, operating at a frequency of 20 MHz. Special control program was created on the NMR analyzer, which automatically tunes and measures full FID curve, then switches to measuring the echo amplitudes deca...

The formations having accumulated during the Upper BurdigalianпїЅBadenian sedimentary cycle following a tectogenetic (Eostiric) paroxysm pertain to the Lower Molasse of the Eastern Carpathians and feature significant lithofacies variations. The formations of this sedimentary cycle in the Sl?nic PrahovaпїЅAluni? area (Prahova County, Romania) include Molasse-type deposits featuring well-individualised geological formations. Since the formations of this sedimentary cycle are the widest spread in the Sl?nicпїЅAluni? ...

Metallurgical wastes are deposited in landfills or are being recycled, mainly as material used for engineering work. They are also sources of pollution in the groundwater environment. For this reason, it is necessary to explore environmentally safe ways of using them. Environmental impact assessments of waste can be made on the basis of static or dynamic laboratory tests. The alternative is to carry out lysimetric research. However, this kind of research is rarely performed due to the degree of complexity, cost an...

Protected natural areas are ideal for monitoring relatively undisturbed natural development of both inorganic and organic parts of ecosystem. The stock-taking of species occurring in the nature reserve is not only crucial to maintain the function of natural reserve, but also to monitor the development of species spectrum, as well as the diversity and succession under conditions relatively undisturbed by anthropogenic factors. Prosisko nature reserve was established in 1998 in order to protect forest ecosystems wit...

The Vrancea zone is an area of concentrated seismicity at intermediate depths (60-200 km) beneath the bending area of the South-Eastern Carpathians in Romania. The purpose of the paper is first to find historic data related to the four selected Vrancea earthquakes occurred on 26 November 1829 (Mw 7.3), 1 May 1893 (Mw 6.2), 17 August 1893 (Mw 7.1) and 31 August 1894 (Mw 7.1). Next, to gather all available historic information about those events, analyze it, assess/or convert the intensity using the Medvedev-Sponheu...

Archaeological work was undertaken to save the archaeological site. Originally the site was described as settlement from the period of Lusatian Culture. But during the first archaeological excavations, a vast and rich burial ground of Lusatian Culture people was discovered. Burials were located at different depths, often above one another. In order to determine precise location of the archeological objects the geophysical survey was used. Due to the fact of burial cremation, which means treated with fire, as a sui...

This article discusses the use of different algorithms for analyzing data obtained by magnetic measurements in archaeological excavations. The aim of this work is the automatic detection of possible anomalies in data that may indicate the presence of archaeological sites. The article discusses two kinds of anomalies пїЅ useful (caused by the presence of archaeological sites) and spot anomalies (caused by the presence of various metal debris). Spot anomalies create local noise that interfere with the determination ...

The quasi-permanent seismic activity that characterizes our planet can be very well explained through the geodynamic pulsatory model for Earth. The cosmic cycles governing effectively TerraпїЅs evolution can provide a current and pretty realistic image compatible with sustained seismic activity of the Earth. More exactly, the phases of these dynamic cycles are crucial because they correspond to a trend of planetary expansion or contraction for Terra. From this point of view there are especially important two cycle...

The Bolshoi Altay (BA) located in the north-west part of Central Asian mobile belt on territory of the East Kazakhstan. The geological structures of the BA include Rudniy Altay, Kalba-Narym (in the north-west), Zharma-Saur, and neighbouring regions of Russia and China and, was formed in the Hercynian time in the process of collision of Kazakhstan and Siberian lithosphere plates and degradation of Irtysh-Zaisan paleo ocean. Regional and local criteria for forecasting of gold ore deposits of the BA have been develop...

Nowadays the renewable sources of energy are gaining more and more in importance to meet the society requirements of energy in a sustainable way. Biomass is among the renewable sources of energy which is known and used since ancient times and it is of great importance for present as well as for the future. One source of biomass are agricultural crops through their residues but also as agricultural crops specially designed to produce biomass and known as energy crops. Although the biomass was traditionally used to ...

This study highlights a part of the results of a doctoral research regarding business performance improvement through contract management, conducted by authors in the Research Centre of Business Administration, Bucharest University of Economic Studies, Romania. The goal of this paper is to identify key elements for lasting collaborative partnerships through an effective project management. The first part of the paper provides an overview of the existing literature whereas the second part includes research results ...

The aim of this work is to present the current state as well as a forecast for coming years in sewage sludge management in Poland after 1 January 2016. New law policy adopted from 1 January 2016 forced certain changes in communal sewage sludge management. Now communal sewage sludge is forbidden to be stored (calorie than 6 MJ / kg), therefore there was a need to increase a percentage share of other methods used for sewage sludge management. In addition there is an expansion of a waste water treatment plants and se...

The main aim of this article is to present the current situation of waste management in Poland. The most frequently used methods of waste treatment, with particular emphasis on the use of thermal methods. In recent years, the stream of municipal waste per capita is constantly increasing which makes the municipal waste management is becoming one of the biggest challenges in the twenty-first century. By 2016, most of the waste was not reused, but its way directly to the landfill. Legal restrictions introduced from 1...

The management of grassland areas through the correct use of these areas is reflected in the qualitative and quantitative increase in plant production per unit area, the increase of the animal product and the better protection of the environment. The national agricultural context of Romania requires the existence of a Management Plan for each area of grassland and its concession to farmers for a period of up to 10 years. This study was conducted for an area of 945 hectares of grasslands under the protection of the...

The article is an introduction to the issues of shaping the areas of former lignite mining surrounding the city of Zielona GпїЅra (Lubuskie voivodeship, Poland). The city of Zielona GпїЅra, seeking new investment areas, develops further areas, including those that have been former mine sites for at least 70 years. They have never been reclaimed. The remediation of former lignite mines, both technical and biological, is the responsibility of the mining plant and should be carried out in accordance with the law, how...

A regulation of the mining operations mode during a new phase of open pit mining deep lying minerals through implementation of temporary non-operating open pit edges on many deep open pit mines made it difficult to extract minerals. Innovative technologies of working zones development along steep open pit edges have been tested at the pre-design stage with comparison of the obtained mining schedules with the design schedules based on the analysis of methods of controlling mining operations mode and their existing ...

Nowadays, efficient urban transportation systems have a very strong impact on economic prosperity and development. The quantity and quality of transport infrastructure can influence attractiveness and desirability of urban regions for certain industries and can affect the quality of life of its citizen. Passenger transportation systems are characterized by complexity of its behavior and a high level of uncertainty; therefore simulation technologies have become an effective tool for their modeling and managerial de...

The present paper analyses the use of resources and municipal waste generation in western Romania. In this territory the waste generation continues to grow but there are considerable differences between urban and rural area, regarding the resource use and waste generation per person, generated mainly by different social and economic conditions, and different levels of awareness towards the environmental issues. While resource extraction has been stabilized in the last decade, dependence on imports is increasing. I...

Social housing management is an area of asset management within local government which is strongly dependent on legal and socio-economic system as well as public housing policy. In many countries housing systems are in transition towards privatization, deregulation and decentralization of public tasks. The transformations in institutional and economic context have lead to more market-oriented social housing management. They have not been an isolated process but a part of broader one termed New Public Management (N...

Land management and spatial planning are closely linked to the adaptation of water management to climate change impacts. Land management has an influence on the ability of the soil to retain precipitation or flood water and sustainable land use can help to better manage risks related to both increased precipitation/flooding and water scarcity. Land and soil management can also realize significant synergies between climate change adaptation and mitigation. Agriculture as a key form of land use will play a crucial r...

The current article presents two map projections used in Romania mainly for military purposes, namely Lambert-Cholesky (from 1917 to 1931) and Gauss-KrпїЅger (from 1955 to 1971). After a brief description of their individual characteristics and particularities of application in our country, a comparison of the distortions produced by both projections was presented in order to emphasise their various advantages. The accuracy of relief representation using contour lines on maps drawn to scales of 1:20,000 and 1:25,0...

This paper presents the works on applying the recommendations of European Commission to Member States by the Mapping and Assessment of Ecosystem Services (MAES) framework to the Romanian peculiarities of wetlands ecosystems, at local level. The MAES framework, published in several guides by MAES working group, recommends for the Member States the methodology for the fulfillment of the Action 5 from the European Union's Biodiversity Strategy 2020 which is to assess in the first phase the ecosystems condition and th...

To combat climate change increase in carbon sink or forest cover is most important adaptation technique. India has committed to create additional carbon sink of 2.5 to 3 billion tonnes of CO2 equivalent by 2030 in Intended Nationally Determined Contribution (INDC) submitted to Paris meet COP 21 (Conference Of Parties). A IPCC Tier II analysis of different mangrove sites of India will give a better snapshot of role of mangrove cover as carbon sinks to combat climate change and to achieve national target of carbon s...

Detailed geoecological mapping of anthropogenic heavily modified regions has its own specifics. A high degree of anthropogenic transformation of the landscape components affects the possibility of such mapping. Comprehensive positional analysis and synthesis at the geographical point was the main research method to the needs of allocating of types of geotopes. This method allows us to create complex geoecological relatively homogeneous units of small areas. This research was done in the cadastral territory of Porп...