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One of the frequent problems that needs to be addressed when mining coal deposits is the presence in the working face of cohesive materials having high mechanical strength in relation to the average rock to be excavated. These are generally called ?hard formations? or ?hard inclusions? and are in the form of either continuous layers or boulders. This problem is of particular importance in Europe where lignite deposits are exploited in large opencast mines utilizing Bucket Wheel Excavators (BWEs) as the main means ...

98% of total explosives used for civil uses are consumed by Polish mining plants, with 2.5 thousands of tonnes of explosives used in bituminous coal mines yearly. Bituminous mines are now facing the necessity of implementing a new project for preparing a system for recording the distribution of blasting materials. The execution of projects related to the implementation of new technologies at each organization, with Polish bituminous coal mines in particular, apart from problems related to legal, economical, techni...

Risk assessment includes quantitative estimation of damage to a linear engineering structure by exogenous geological processes. Remote sensing data processing using the mathematical morphology of landscape seems to be a promising approach of exogenous hazard risk assessment for linear structures, this issue is examined taking thermokarst plains as an example. The mathematical models of landscape morphological patterns for thermokarst lacustrine plains and thermokarst plains with fluvial erosion is a base of the su...

The aim of the present work is to develop, substantiate, and study a fundamentally new method of derivation of composite electrolytic films making it possible to control their composition and structure. We assume that, after the termination of the stirring-up of a bath containing the electrolyte-suspension with monodisperse spherical particles of the same density, a uniform sedimentation space is established. The upper boundary of this field will descend with a velocity depending on the dispersity and density of a...

Environmental pollution has become one of the most debated issues of the contemporary times, being a consequence of using imperfect methods in production technologies. One of Romania?s areas where the environment has suffered as a result of human activities is the Jiu Valley, a place where the main activity was and continues to be mining. In this paper the authors aim to identify and quantify the pollution sources related to the coal mining activity from the western part of the Jiu Valley and, based on data relati...

Today green growth has risen to the top of the agenda for many businesses. Green path strategies have enormous potential to influence the products and services the business offers its customers. Prioritizing product development projects based on their ??green?? contribution can open up an entirely new channel for idea generation. This article aims to outline the key competitive advantages and problems of the green path strategy, covering cost savings. The article highlights how examine industrial companies through...

The work given has been aimed at consideration of methodical approaches for the feasibility study of perspective in mineral deposits development, and based on it, preliminary ranking of criteria which should be applied relative to the Arctic solid mineral deposits. Authors used a formal logic method (analysis synthesis). It was revealed that both the domestic and foreign approaches cannot be applied directly for the feasibility studies of the Arctic solid mineral deposits because they consider the arctic condition...

First part of the paper presents the monitoring project of Turdas tunnel with the detailing of the monitoring equipment. Building of Turdas tunnel was realized for ensuring the maximum speed of 160km/h for passenger trains. In order to build the tunnel was provided a provisional support and a final support, due to difficult field conditions, obtained from the geotechnical studies, because of the presence of the swelling soil. To achieve safe construction of the tunnel were mounted specific monitoring equipment in ...

Located in the northern part of continental Portugal, the city of Porto is characterized by low-to-moderate levels of seismicity, thus one of reasons for the lack of studies regarding the influence of site effects in this area. In this study, the HVSR technique (horizontal-to-vertical spectral ratio) was used in order to obtain information about the fundamental frequencies of the ground in several parts of the city which was later compared to the geotechnical information presented in the Geotechnical Map of Porto,...

The paper deals with city population?s behavior in public transportation in Olomouc City (Czech Republic) by integration and aggregation of individual characteristics and needs which are estimated on the base of statistical probability calibrated and validated by local survey data at municipality level. The survey data were used with current census data about mobility combined data from information systems of local/central governments or institutions. The questionnaire survey employed the probability sampling on t...

The article presents the results of humic acid macromolecule study based on the instrumental approaches. Humic acids were extracted from various types of peat (0-20 cm) found within the Western Siberia. The obtained results provide insight into the structure and composition of peat humic acids. The obtained results definitely indicate that elemental composition, thermodynamic stability, and NMR13? spectrometry of humic acids are basically a consequence of their physico-chemical properties which, in its turn, depen...

The paper considers the problems of requirements formalization in the implementation of software development projects, as well as ways to solve these problems. When developing a unified model for converting requirements into a formal model, a static model describing the general concepts of the transformation of requirements into a formal model and their relations will be considered, taxonomies that classify and define the main types of requirements imposed on the requirements of the rule, approaches for pretreatme...

A modern cadastral system should meet it requirements. These requirements relate mainly to the way of cadastral data access. The definition of cadastral system turns out to be not sufficient in the context of the on-line formula, because cadastral system is a distributed and extensive. The data of this system should be compatible with other information systems. In the presented paper, the author proposes the definition of a cadastral system relating to the most important element of the data quality which is the se...

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...

The management features of mining project life cycle are connected with unregulated periods of coordination, confirmation, certification, a time gap between development stage and project implementation, specific features of mineral deposit technological processes (overburden removal, mining, mineral processing). The Scheduling method does not take into consideration volatile deviations. Thus the management method of project life cycle is corrected by technicians of changes management. As a result it leads to signi...

This article dedicated of research of thermo-bargeochemical peculiarity of auric pegmatoid, concentrated in Pre-Cambrian basites complexes of Aldan-Stanovoy shield. As result of identify genetic types of inclusions and also complex-works of vacuum-dicriptometrical and gas-chromatographical researchers of Panigin?s gold-ore bodies field, concentrated in enclosed gabbro-noroties of Medvedevsk?s igneous, were discovered three major selection highs of fluids components which connected with three systems of inclusion m...

With the development of space technologies, satellite information and data from ground geophysical observatories are increasingly being used in scientific studies of various physical processes and, in particular, to identify effects in geophysical fields during periods of seismic activity. In this paper, we recommend to create the geographic information system (GIS) based on modern computer software for collection, processing, visualization and analysis of experimental geophysical terrestrial and satellite data du...

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 °C. T...

Currently, there is an increase in the output of volumes of products of refineries, which leads to the contamination of the water basin by hazardous substances - such as dissolved refined products. Pollution of water resources leads to deterioration of the ecological situation. Existing cleaning methods, such as mechanical cleaning, reagent cleaning, hydrocyclones cleaning, sewage from oil products are not effective. These methods do not provide for the purification of effluents to the required MPC or are costly, ...

Grasslands, as specific components of the hill area from the West of Romania, belong, according to latitudinal and altitudinal zonation, to different vegetation zones, in concordance with the environmental conditions and implicitly with their own vegetal formations. Grassland classification in a certain vegetation zone offers very important information on biocenoses and biotopes, and also on its ?agronomic? characteristics (productivity, grazing capacity, maintenance, etc.). This study may be considered a theoreti...

The aim of the article is an example of how to handle the process and visualize data from the sensor SRS in a GIS environment. Spectral Reflactance Sensor (SRS) is a contactless position sensor system manufactured and distributed by Decagon that monitors vegetation cover, and depending on the use of sensors allows for the Normalized Difference Vegetation Index (NDVI) or Photochemical Reflectance Index (PRI). Values of the spectral reflectance are gradually transferred from the field sensor to the PC environment, a...

The Vanavar Formation is a terrigenous horizon (1 to 200 m thick) at the boundary of the Tonian-Cryogenian and Ediacaran-Fortunian carbonate complexes. The geological position of the Vanavar Formation and the intensive facies variability do not permit a clear characterization of the conditions for its accumulation. Additional interest in the study of Vanavar Formation caused by its oil-and-gas bearing deposits. The objects of research are the core samples selected from well ? 3 of Pridutsky area. The mineral and c...

We studied the distribution of heavy metals, benzo(a)pyrene (BaP) and oil products in soils of industrial areas of the cities of Rostov-on-Don, Volgograd and Taganrog. By comparison with the regional background, geochemical associations, characteristic of various types of industrial landscapes and determined by the specifics of production, were identified. It was established that main pollutants of soils of Rostov-on-Don and Taganrog are zinc, lead, copper and oil products; concentrations of mercury, arsenic, nick...

The aim of this paper is to highlight the significance threshold between the kinematic and dynamic characteristics of sports technique key elements used in dismounts and the performances achieved by junior gymnasts in uneven bars events. This scientific approach is part of the formative pedagogical experiment associated to the postdoctoral thesis, at the midway point, in the end of the competitive year 2014. The following research methods have been used for this purpose: bibliographic study of specialized literatu...

ShakeMaps are one of the most applicative products of seismological research and monitoring, becoming available minutes after earthquakes. They are maps depicting the ground shaking produced by an earthquake and the estimated intensity distribution, being extremely useful for authorities, population, private sector and researchers too. However, the outcome of the result ? consisting of easy to read maps representing the potential area affected, often hides the fact that many compromise decisions and uncertainties ...

The area of interest (Slatinice wastedump) is located on the southern edge of the Most?s basin central part (North Bohemia, The Czech Republic). The wastedump was deposited into the space of the fomer lignite openpit mine, called Slatinice. The body of the wastedump has an ovoid shape with the longer axis oriented in the NW ? SE direction. The major thickness, about 100 m, reaching a dump in its central part. Monitoring wells have been realized in the area of interest between the years 2013 ? 2016. The aim of this...

Groundwater represents worldwide the main reserve of freshwater for human needs. The increasing demand, combined with the use of unsustainable systems for groundwater management, leads to a remarkable decay in its quality and quantity, especially in many cities of the Global South, where the fast urban growing frequently bring to environmental critical issues as the case of seawater intrusion for coastal aquifers. Dar es Salaam, in Sub-Saharan Africa, is one of these cities, with more than 4 million of inhabitants...

Ophiolites from the northern slope of the Kuznetsk Alatau (north-western sector of the Altay-Sayan folded area) are the most typical fragments of suboceanic crust, which was formed in the Riphean. This investigation presents and interprets the results of petrochemical and geochemical studies the composition of basite rocks of these ophiolite paragenesis from the Severnaya, Zelenaya, Barkhatnaya mountains and Semenovsky massif. The contents of petrogenic oxides and trace elements were measured by X-ray fluorescence...

The paper explores the possibilities of defining geometry and its behaviors with using ESO digital tools in an integrated structural and architectural design. It is an response to the current needs geared towards sustainability, combining ecological and economic efficiency. The first part of the paper defines the Evolutionary Structural Optimization tools, which were developed specifically for engineering purposes using finite element analysis as a framework. The development of ESO has led to several variations wh...

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 belt?s 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 ru...

One of the fundamental problems in coal mining industry is inefficient use of machinery and equipment. It is therefore necessary to take measures to improve the situation. An innovative system to test components of mining machinery control hydraulics presented in the article may support the initiative. This system enables reliable and efficient testing of components of the control hydraulics. This has an essential and practical significance, since hydraulic systems are commonly applied by many industries, in parti...

One of the key parameters of the mine, which affects the choice of the scheme for stripping and transporting ore, is its annual productive capacity. At the same time, the analysis of the experience of domestic mining enterprises using the underground mining methods allows us to say that the traditional and most common transportation methods are skip hoisting and road transport using underground dump trucks [1]. Along with traditional ones, there are progressive energy-efficient and poorly-staffed types of transpor...

Shale gas potential assessments completed in 2010 for the Baltic Basin (BB) were very optimistic. They placed most of the central part of the BB in the gas window, indicating high prospectiveness of the most of Ordovician, Llandovery and Wenlock deposits. The paper presents results of multicomponent spatial geomodelling, which strongly modify this concept. The model covers area located in the central part of the BB, comprising Kartuzy Szemud and Stara Kiszewa concession blocks. Its area is about 300 km2 and it inc...

Traditional one-regime rainfall-runoff (r-r) models are usually able to adequate simulate only flows in some interval (low or high flows). Proper simulation of both type of flows has a great importance in many practical applications, for example flood protection, risk analysis, etc. For this purpose more sophisticated modeling tools are needed. The aim of the paper is the improvement of simulations of low and high flows using a two-regime switching r-r model. This model uses a unique concept of separate simulation...

The transportation is the most significant energy consumer. Energy consumption in European Union is supported by 50% from its own sources. This implies the need of fossil fuel replacement by alternative possibilities. One option is application of renewable inexhaustible and clean resources which hydrogen is. This paper deals with hydrogen technology application in order to power experimental vehicle. Other thing is the safety concerning the process of human ? machine ? environment system with respect to hydrogen p...

The aim of this study is to contribute to the detection and identification of hydrothermal alteration zones in Variscan granites using magnetic susceptibility. The studied area is located in the North-western of Portugal and is characterised by the occurrence of Au mineralizations in quartz veins hosted in Variscan granites. Three different granite facies were studied, using two methodologies: (i) measurements, in situ, of magnetic susceptibility using a portable susceptibility meter (TerraPlus KT-10), allowing th...

The soil tillage system through the intensity of soil mobility influences its physical state, the capitalization of the fertilization system applied, and together they condition the water conservation in the soil, respectively the development of maize crop. The arable lands damaged by intensive conventional pratices are a cause of the loss of carbon and water in the soil, to a larger or smaller scale, according to soil, season and especially the stage of damage of soils. The purpose of the paper is the research of...

In the process of documenting cultural heritage, traditional techniques have left their place to digital techniques, as their efforts to acquire the right data in the shortest time have developed in technology in recent years.The most common of these techniques is the terrestrial laser scanning technique and the terrestrial photogrammetry technique. In the documentation of cultural heritage, the level at which these methods are used today is quite pleasing. The greatest advantage of these methods is that it enable...

We consider formation of the knowledge database within geographic information systems for support the managerial decisions on the development of spatially distributed systems and territories. Knowledge database built on systematized and formalized the laws of development of objects, phenomena, events of the subject area, obtained through theoretical studies, practical activities and work experience that allows professionals to formulate and solve management problems. To represent ontologies in the knowledge base i...

This study presents the evolution of residual chlorine concentration in the water distribution network for a town with 10 000 inhabitants. The distribution system consists of a tank, pump station, 41 loops, 175 junctions and 166 pipes. The paper presents also a methodology for computing the residual chlorine concentration decay in water distribution system, over a 7 days period of time. Chlorine is injected at the tank, with a constant concentration of 0.5 mg/l. A variable water demand over a 168 hours period is i...

Energy needs are increasingly growing due to the mechanization of industry by the industrial revolution, increased production in line with increased population, higher prosperity levels, and abundance of electrical tools. Mineral oil get polluted chemically and physically and become unusable after a certain amount of usage. As natural resources are limited, mineral waste oil need to be recycled in order to reduce production costs and achieve sustainable energy acquisition. Cement factories are energy-intensive bus...

A method of solving the selection problems with fuzzy parameters by means of a special algebraic structure is proposed. To construct such an algebraic structure, we propose a special transformation of existing fuzzy numbers to the simpler form (L or R number) while keeping the most of the initial expert information. This structure avoids deficiencies limiting applicability of the other known structures, such as unjustified extension of the uncertainty, violation of certain natural relations, openness of the carrie...

The results of rooting cuttings of Bougainvillea spectabilis which were planted in substrates of sand, peat, perlite and peat + perlite treated with rhyzogene substances named Atonik and Radistim. This study was conducted in the closed greenhouse from the Faculty of Horticulture and Forestry in Timisoara, for the rooting place had been utilized crates with the size of 50x30 cm and they were filled with substrate of sand, peat, perlite, perlite + peat, and then were planted cuttings of Bougainvillea spectabilis tha...

This paper presents an application of photogrammetrical methods for called IBMR (image based modeling and rendering) in comparison with using of several laser scanning techniques. At the CTU (Czech Technical University) in Prague, Laboratory of Photogrammetry, new methods of 3D objects documentation is tested as the long term project. There are two main approaches in documentation: precise documentation by several techniques as precise close range stereo ? fotogrammetry and laser scanning or simple documentation b...

Haloxylon aphyllum Minkw. (Black Saxaul) is the main brush-forest-forming species in Kazakhstan. While the latter is a rain-fed shrub principally distributed on sand dunes, the former is a phreatophyte, which uses groundwater as water source. Accordingly, Black Saxaul is mainly distributed on the current and ancient alluvial river terraces. Saxaul played and still plays an important role as fodder plant and fuel wood for herders. The Black Saxaul (Haloxylon aphyllum Minkw.) is the principal arboreal taxon of the c...

Anthocyanins are known as safe colouring materials, although they have poor stability which often limits their use. To solve this drawback, mesoporous silica with high surface area was used as an adsorbent for anthocyanins. This study proposes the enhancement of the anthocyanins photo stability by their incorporation into the pores of mesoporous silica containing various metal ions. The anthocyanins were adsorbed on the silica by pouring a highly-concentrated anthocyanins solution to the dried silica. Improved sta...

Using interpolation techniques for predicting economic activities such as a movement of cyclist is always vitiated by an error. Therefore, this paper deals with the issue of understanding the error during modelling and compares different assessing criteria for choosing the most accurate method in order to decrease error propagation. The diagnostic of interpolation methods can be calculated with cross-validation approach. In case of kriging methods, we computed the estimated prediction standard errors and we examin...

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 Au?Ag 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 depos...

This study focused on developing a multilevel system of spatial analysis of different types of data to model forest cover. We built a map of forest growth conditions using field data, climatic and morphometric parameters. Landsat images were classified with the help of a forest inventory and field database in order to map of current forest cover. Using Knowledge Engineer Module (ERDAS Imagine), we developed a knowledge base intended for modeling forest regeneration series from a spatial combination of the maps of ...

The amount of sulphurous and high-sulfur oils increasing annually, and so the consumption of products processed from these oils constantly growing. Content of sulphur in the oil products is strictly controlled, that makes much more actual the task of searching for new cost-effective technologies for reducing the total sulfur content in products of primary and secondary oil refining, as well as at the stage of its preparation for processing. A wide application of various types of fuel leads to air pollution with co...