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The investigated lead - zinc ore panel is located in the Blaznei Valley ore deposit, Romania. Applying traditional methods for determining the average thickness proves useful in its exploration, although there are only four points of thickness measurement, located in each corner of the exploration panel. Later, in the second stage of the exploitation process (preparation), when the exploration panel becomes an operating (exploitation) panel by contour mining of four workings, two groves on direction and two runs, ...

The contribution deals with the mathematical literacy of future engineers in the context of Industry 4.0. Even in this advanced stage of automation and robotization, there are situations in the production process where we cannot do without a human factor. No machine is and will never be so perfect as to replace human activity completely. But people have to be prepared for this situation both theoretically and practically. There is an example of practice in this contribution, which demonstrates, why knowledge of ma...

Nowadays the conditions for admission to higher education institutions in Russia can allow centralizing the procedure for competitive selection of applicants across the country to increase the clarity and publicity of this process concerning applicants, as well as to reduce the universities expenses for the admission campaign organization. The federal information system for providing Unified State Exam and admission can become the heart of such centralization, but at the present time there are no algorithms for co...

Anthropogenic load is the main cause of forest fires near settlements and various objects of transport or industrial infrastructure. It is proposed to mark out a point source of anthropogenic load. Similarity in the processes of propagation of anthropogenic load and diffusion heat transfer was used for simulations. The quantitative characteristic of the anthropogenic load is the virtual (possible) number of forest fires in a controlled forest-covered area. A one-dimensional mathematical model for estimating the sp...

In this paper, it was shown that the gold-modified carbon black (XC-72R + 20% Au) is able to electrooxidate the glucose under conditions, which are the most suitable for the work of the laccase-based electrode (pH = 4.5). It was established that oxygen does not participate the investigated process. The possible mechanism of the reaction was proposed. The maximum current density of 700 ?A cm-1 under the 0.4 V (Ag/AgCl) was received on the electrode with 1.5 mg of the catalyst loading within the solution, containing...

Multispectral method can be used for applied tasks of ecological control of parameters of water environments in the near-surface layer. With known parameters of aqueous media, it is first necessary to solve the direct problem of calculating their spectral characteristics. The solution of the inverse optical problem, for example, using regression equations, makes it possible to determine the parameters of the medium behind the results of multispectral measurements. The aim of the work is mathematical modeling of mu...

The approach of Biotechnology Department of Mendeleev University of Chemical Technology of Russia covers integrated processing and the use of secondary by-products in nature-like technologies for bioconversion into highly added value products with unique properties for sustainable development of the planet and lowering the negative industrial effect. This paper presents a mathematical model and solution strategy of S. cerevisiae single cell protein accumulation in deproteinized sunflower meal hydrolysates. Differe...

The approach of Biotechnology Department of Mendeleev University of Chemical Technology of Russia covers integrated processing and the use of secondary by-products in nature-like technologies for bioconversion into highly added value products with unique properties for sustainable development of the planet and lowering the negative industrial effect. This paper presents a mathematical model and solution strategy of S. cerevisiae single cell protein accumulation in deproteinized sunflower meal hydrolysates. Differe...

The development of dangerous hydrogeological processes takes place as a result of the action of climatic factors and of unfavourable technogenic conditions. One of the reasons of the worsening quality of land resources is the salination of soils by chemical compounds (chlorides, sulphides, carbonates) from ground and surface waters and the non-rational irrigation which results in worsening useful properties of soil. With the aim of decreasing or avoiding soils salination hydro-ameliorative measures are used which ...

The original archaic buildings were not protected in any way from adverse external influences, resulting in degradation of structures and often the subsequent destruction of the entire building. People tried to protect the buildings and this led to that they invented plaster. The plaster, as a unique product of human activity, complements the surface of the building and impresses with its final appearance and often raises the aesthetic value of the whole building. Plasters are conditioned in the course of history ...

Methane and carbon dioxide are among the most active of greenhouse gases that contribute to climate change. Anthropogenic sources have a significant share of their emission into the atmosphere. One of the major sources of emissions of these gases can be exploration activity and operating oil&gas industry. It is associated with the possibility of uncontrolled migration of reservoir gases in the course of work consisting of geological exploration and recognition of hydrocarbon deposits by drilling. In connection wit...

Since 1. January 2013 on all the vessels of a gross tonnage exceeding 400 tons there is a Recommendation in force released by the International Maritime Organization (IMO) which concerns applying a Ship Energy Efficiency Management Plan ? SEEMP. Applying SEEMP on the vessels is meant to be the way of increasing the efficient energy use of fleet within the economic and ecological scope. Its aim is to increase the efficient energy use of the vessels thanks to the decline in fuel consumption and the same CO2 emission...

The following article deals with problems of mapping of quarries, the subsequent creation of graphical map documentation and the processing of data providing information on the mining process. It deals with the work and procedures to be performed in the field during the preparation and the measurement itself and describes the subsequent progress of the work in the evaluation and processing of the measured data for the preparation of the basic map of the quarry. Prior to the measurement itself, it was necessary to ...

Self-compacting concrete (SCC) represents a high fluid homogeneous mixture, able to fill perfectly the formwork without any external mechanical action due to the flow capacity under its own weigh. The productions of SCC demands new mix design procedure, with different constituent dosage using similar components as vibrated concrete. It contains a larger amount of powder, which allows the use of industrial by-products such as limestone filler, fly ash, ground granulated blast-furnace slag, silica fumes and others. ...

Continuous improvement and technical sophistication of modern machinery and equipment, extreme conditions of process operations dictate strict requirements for structural materials to ensure their high strength, workability and reliability. A perspective way to improve the operational and technological properties of aluminum alloys is various external impacts on the crystallization processes. Such methods of preand crystallization treatment of molten metals will allow to get the target structure and mechanical pro...

The Krka River is a pristine karstic stream and unique model system for the understanding and interpretation of environmental records in tufa precipitating rivers worldwide. The river is characterized by 7 main and numerous small tufa barriers grown in a constant and dynamic process depending upon many physicochemical factors. An evaluation of the quality status of the pristine karstic, tufa depositing aquatic environment of the Krka River National Park based on the analysis of mercury contents was performed for t...

The Don River Delta represent a single hydrographic system, the development of which is characterized by the spatial-temporal variability. The functional role of the individual delta channels and their participation in the distribution of the river flow are different due to significantly different morphological characteristics and stages of development. In turn, this is reflected in the peculiarities of hydrological and hydrochemical processes. In this regard, within the delta the intensity of migration of chemica...

The need for this study arises from the importance of integrated assessment of mineral resources and improvement of metasomatic formation techniques. This is especially important for geological materials which are mined for their direct commercial value (industrial materials). This article is devoted to the study of the ore control of complex industrial minerals. The Khizovaara structure belongs to the Tikshozero greenstone belt. Within the structure, a multistage metamorphism and metasomatism processes are manife...

The monolithic pattern of rocks from two large intrusive massifs in the Fennoscandian Shield is assessed by analyzing their macro- and microfracturing. Macro- and microfracturing was analyzed on rapakivi granites from the Neoproterozoic Salmi multi-phase massif and gabbrodolerite from the Paleoproterozoic Ropruchei sill. Macrofracturing was studied on bedrock exposures in the field. Macrofracturing is understood as a fracture which is visible within the rock exposure and which varies in size from 10 cm to 100 m. M...

Pyrotechnic article are means any article containing explosive substances or an explosive mixture of substances designed to produce heat, light, sound, gas or smoke or a combination of such effects through self-sustained exothermic chemical reactions. Of the family of these products are the electric igniters framed according to the intended use in category P1 / P2 - Other pyrotechnic articles. These types of pyrotechnic articles are used to initiate the burning of pyrotechnic components that generate deflagration....

The use of electrical energy in potentially explosive atmospheres involves various particularities, fact for which there have been raised a lot of issues concerning the design, construction and exploitation of electrical equipment and installations intended to be used in these atmospheres. This paper presents the explosion protection principles implemented for the type of protection encapsulation ?m? which are based on the adoption of certain separations between the encapsulated circuits and the other circuits, by...

One of the most important properties of bitumen is - among others ? its ability to stress relaxation. This ability affects the energy absorption from the vehicles? wheels by asphalt pavement. It has also influence on deformation, damages and durability of road surface. The problem of the destruction of asphalt layers is common and current. In order to determine the physicomechanical characteristic of bitumen, in the article, a method of evaluation of stress relaxation properties in road bitumens is presented. In t...

The way of measurement of dynamics of growth of leaves of a tree from the beginning of blooming of kidneys until the end of the vegetative period includes such actions. The chosen leaf do not cut off, and mark with a label in the form of the label with number on the white thread adhered to the base by the petiole. Each sheet is measured. Therefore the way of measurement is individual, and revealing of laws - group on not less than 10 leaves allocated for surfaces of a crone of a tree with one light exposure. At th...

The article shows that existing economic tool for natural resource using in agriculture doesn?t provide efficient natural resource using and main elements of natural media (close-to-the ground atmosphere layer, soils, water resources, flora and fauna) consump-tion, and doesn?t encourage resource and energy saving technologies practical use and doesn?t follow requirements provided by modern Russian Federation low on land and water using relations and environment safety. The necessity of transfer from high re-source...

The quantification of the influence exerted on the targets from an establishments concerned by the SEVESO II Directive requirements can be performed through the potential danger resulting by the aggregation of the gravity index and the propagation flow index. Starting from the environment?s specific characteristics, the major accident?s propagation kinetics and the distance between the target and the danger source, the paper has as goal to depict a propagation flow determination method. In this index determination...

The article presents the methodology of conducting experiments related to the process of composting under laboratory conditions. For this purpose, a set consisting of eight fully metered reactors imitating the composting process under real conditions was built. In the insulated chambers, bayonet thermometers were placed, air coolers, condensate tanks and drains were installed. During composting experiments with daily measurements, the composition of gases coming from individual reactors is examined, i.e. CO2, NH3,...

The article presents the possibilities of modern use of historical mining excavations in geotourism and industrial tourism on the examples of selected post-mining structures in Poland. Issues related to the subject matter of historic structures, such as relics of former mining works and the significance of post-mining structures as a specific type of tourist products were discussed. The methodology was proposed for making post-mining structures available for tourism purposes, including analysis of particular condi...

Linked Open Data or Linked Data is an innovative approach to data management regarding spatial and geographic data as well. Its main benefits consist in using existing web technologies, including Uniform Resource Identifier as feature identifier and links connecting particular data objects. This paper discusses a methodology of the development of a data model respecting the Linked Data approach for spatial data with point geometry (called points of interest). The complete development process is composed of several...

The article discusses well-known methods and algorithms of joint processing of geoelectric and seismoacoustic signals, which have the possibility of practical implementation for geodynamic and geotechnical media monitoring in real time. One of these methods is the solution of the equation describing the probed geological environment, which is under the joint action of the electrical signal and the components of the seismic wave. This allows us to isolate and localize parts of the analyzed medium with different inh...

The temperature of air exerts a huge impact on the life of man and his natural surroundings. Especially, the influence of air temperature is visible in terrains which are less urbanized or in rural areas, where agriculture is a dominant sphere of human activity. The aim of this paper is to present and describe the possibility of using synoptic data for the designation of surface temperature for the town of D?blin. The D?blin city is located in the Ryki district in Lubelskie Voivodeship of south-eastern Poland. Aro...

Usually, the methods for noise abatement selected in the action planning for a city are prioritize according with the implementation costs or they are secondary effects of the other measures, which has a totally different scopes. Besides the costs, another effectiveness indicator is used: the number of people benefiting from the noise reduction. The issue of the approach is the fact that this indicator is global and nobody can deduct precisely the location of the persons that benefit of measures. In this way, the ...

Currently in our country, dry salt extraction of salt deposits is achieved by the small chambers method. The projected size of the assembly formed out of the side of a pillar and the adjoining chamber is of 30m and remains constant over the entire depth assigned for the exploitation, but the portion of the side of the pillar changes (which is constantly increasing along with the depth) and a of the side of the chamber (increasing with the decrease of the depth). The pillars and rooms have a height of between 7m an...

Investigation of methods for increasing the rate of oxidation of ferrous ions dissolved in natural water and developing techniques for obtaining high-dimensional agglomerates of oxidized iron particles, with the aim of improving the efficiency of separation processes. As a method of oxidation in processes of deironing of natural waters, aeration and oxygenation of air through ceramic membranes were chosen. The effectiveness of the aeration method of deironing is associated with the rate of oxidation of Fe II with ...

Kazakhstan is located in the arid zone in the conditions of water supply deficit. Irrigated cropping is the basis of agriculture for its southern regions. Akdalinsky irrigated massif (Almaty region, Kazakhstan) belongs to rice irrigation systems. Their exploitation causes the salinization and contamination of soils and groundwater. Mathematical modeling is the most effective method of solving hydrogeological problems associated with anthropogenic environmental impact. It is advisable to create permanent mathematic...

In this paper we presented the calculation algorithms and the software for the calculation of the moving average with various windows, for calculating the analytical expressions of the polynomial tendencies of various degrees and for the calculation of the correlation factor variation between two parameters. Trend analysis is part of the field of regression analysis that satisfies the smallest squares criterion. The difference between the calculated value of the trend surface at a certain point and the value obser...

The article analyzes the electricity needs of the University Politehnica of Bucharest campus, consisting of 10 faculty buildings and 18 students? accommodation buildings. This work establishes the maximum power consumption and proposes a solution through a micro smart grid with a photovoltaic power plant. The solutions proposed aim to increase the efficiency of the energy consumption. This objective is the basis of a project proposal with European funds, under preparation, in order to implement the solution propos...

X reservoir is a high temperature (97 ?), high salinity (TDS 204600 mg/L, divalent cation 11480.34 mg/L), middle-low permeability sandstone reservoir located in Tarim Basin (China). Serious vertical and lateral heterogeneity of formations resulted in the injection water channeling from higher permeability pathways. The harsh conditions make it difficult to further improve oil recovery. This paper provides a micro-scale preformed particle gels (micro-PPG)/surfactant EOR process for X reservoir. The micro-PPG with a...

The study was conducted to find out how the structure and diversity of microbiomes in buried soils differ from those in surface soils, and can analysis of microbial DNA from buried soils be used as a tool for paleoecological reconstructions. Samples were taken from buried soils under earthworks (burial mounds or earth fortifications) of different age, and from surface soils of the same area. Total DNA was extracted, and bacterial, archaeal and fungal abundance (by ribosomal genes qPCR) and prokaryotic biome struct...

Black Sea is one of the largest inland seas in the world and is vulnerable to land ? based pollution pressure from its littoral area that causes the degradation of the aquatic ecosystems through eutrophication. Sometimes were recorded at the Romanian littoral a macroalgae mass development, especially by the group green macro-algae, Ulva, Enteromorpha and Cladophora species which are present in associations succeeding in all the year. A comparative study of waste algal biomass microbial charge was done in order to ...

Black Sea is one of the largest inland seas in the world and is vulnerable to land ? based pollution pressure from its littoral area that causes the degradation of the aquatic ecosystems through eutrophication. Sometimes were recorded at the Romanian littoral a macroalgae mass development, especially by the group green macro-algae, Ulva, Enteromorpha and Cladophora species which are present in associations succeeding in all the year. A comparative study of waste algal biomass microbial charge was done in order to ...

The article deals with the degradation of cement beams containing polypropylene and polyvinyl alcohol fibres. Nowadays it is developed high-quality concrete that contains a minimum of reinforcement or all it is replace by micro fibres. Microscopic examination of fiber breakage and changes at fiber-matrix interface was investigated in this paper. The cement beams were stored in an aggressive environment of 3% NaCl, 5% NaOH and 5% H2SO4 for 28 days (CSN P CEN / TS 12390-11). Mechanical parameters and changes of fibr...

Gypsum paste was subjected to the temperatures up to 1000 В°C and its microstructure was investigated by SEM microscopy. The volume and mass changes were also measured and the bulk density, porosity and residual strength were determined. After heating to the 1000 В°C the structure of paste changed substantially, as can be seen in the micrographs. The structure of heated material is denser and the anhydrite crystals are bigger. The volume of the samples decreased more than 50%. The bulk density increased by 20%, wh...

It takes adequate IT tools to implement and perform information processes in an organisation. Such tools can be developed by means of popular and frequently used programs, such as spreadsheets. The tools created in spreadsheets may be consistent with the author?s signature concept of Microtools Based on the Relational Data Model (MiRel). This concept delivers specific solutions intended for representation of identified entities and ensures integrity of both data and the assumed reports and collations assumed to be...

With regard to the ever-increasing road traffic density, the demands on the transport infrastructure are also increasing, or more precisely on its quality. For this reason, even a slightly damaged road surface is often considered unsatisfactory and its reconstruction is necessary. Increasing the amount of heavy and especially overloaded vehicles has a significant impact on the life of the roads, as they cause permanent deformation of the surface layers of the road. A further significant influence is represented by...

In the East of the Russian plate oil-gas occurrences in Bashkortostan, Perm region and Udmurtia were revealed in the Vendian-Riphean sedimentary deposits. Industrial oil inflows have been obtained in a number of areas. Possible perspective intervals are associated with great depths, in particular, with the deposits of the lower Riphean. The deposits of the Lower Riphean in the territory of Bashkortostan were discovered on the Eastern-Askinskaya area. The results of a study of the material composition of rocks show...

The crystalline basement of the Tatar arch located in the eastern part of the East European Platform (Russia) is composed of the metamorphic rocks of different composition and genesis. The Tatar arch consists of two blocks of the basement. The North Tatar and the South Tatar blocks are separated by a faults system. The South Tatar arch is a granite-gneiss core of the basement. It is composed of Archaean-Proterozoic metamorphic complexes of rocks (granite-gneisses, gneisses, migmatites and granulite-gneisses). The ...

Medvezhye gas field is the oldest known one in Western Siberia and unique because of its values. At the present time most of Cenomanian deposits are exhausted. Senonian sediments, which are such nontraditional reservoirs as clayey opokas, opoka-like clays and opokas, are considered as a source of resource potential compensation. Objects of the study are 34 core samples taken from two drill holes and belonging to the lower part of Berezovskaya suite. Geochemical and mineralogical features of the rocks were studied ...

The paper presents the results of the research of ore mineralization in quartz, quartz-sulfide, quartz-carbonate-barite, carbonate-barite veins of Dyvok ore occurence. The object of the research is located in the South-East of The Sakha Republic (Yakutia) and is a part of the Stanovoy gold-bearing region. The gold mineralization was found out to belong to gold-quartz-sulfide type, to relate to the stock of Cretaceous granite-porphyry and to be located in the K-feldspar-quartz metasomatites, beresitization and arki...

The Kuznetsk Alatau ridge represents a NW segment of the Altai-Sayan folded belt (ASFB) and is considered as a Caledonian collisional system. The ophiolites from the northern slope of this ridge are the most representative fragments of suboceanic crust. This work presents the results of a study of the mineralogical composition of metabasites from ophiolite paragenesis of the Severnaya, Zelenaya, Barkhatnaya mountains and Semenovsky massif. The samples from the gabbroid and subvolcanic complexes were selected and s...

Synthesis gas for an electrochemical generator was produced in a thermochemical reactor with autothermal air conversion of methane (natural gas). Based on thermal balances of the reactor, a battery of SOFCs and a boiler-utilizer (BU) for heating primary and secondary air, cathodic air and methane, the following parameters were calculated: temperature at the anode, EMF of the fuel cell, electrical efficiency (gross) of the electrochemical generator, portion of hydrogen oxidized at the SOFC?s anode and specific cons...