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The Moravian Karst, situated in the eastern part of the Czech Republic, is the most extensive and most developed karst area in the Bohemian Massif. To protect its unique environment, the Moravian Karst was declared a Protected Landscape Area in 1956. Despite the protection, pollution occurs in some disappearing streams both on the earthпїЅs surface and underground, in caves formed by karst processes. The aim of the study was to assess the hydrochemical status of several selected streams and identify the sources of...

The paper considers the issue of effective scale inhibitor applied while developing an oilfield using steam assisted gravity drainage technique, and presents a case study of injecting superheated steam of 140-160?C in the Ashalchi oilfield. In such conditions, organophosphorus chelating agents conventionally used to prevent scale formation degraded and proved to be ineffective. The authors analyzed chemical composition of scales deposited on the electric submersible pump pulled from one of the wells in the Ashalch...

The sea coasts and estuaries are especially exposed to the oil pollution harmful influence as they frequently suffer from oil spills relating to the tanker accidents, port and off-shore activities. The objective of the present research is to examine the rates of spilled fuel oil natural destruction on geographically different seacoasts and to assess their self-cleaning capacity. For this purpose, a number of contaminated sectors of the Atlantic coasts of France and Spain (areas of пїЅErikaпїЅ and пїЅPrestigeпїЅ ta...

Regarding to the situation in Romania, the country's total agricultural surface of 14.946 million ha, an area of 6.367 million ha (42.6%), with slopes greater than 5%, is prone to water erosion and other processes associated. Of these, over 900,000 ha are affected by very strong and excessive erosion. The study aims to quantify the soil loss by erosion process and to specify the main factor affecting the erosion development in the study area using geoprocessing techniques and the erosion predictive model Revised U...

In the article provided assessment of water supply sufficiency of agricultural lands of South Kazakhstan which is the region of pasturable livestock farming and irrigated crop farming. The regional specific of irrigation of pasturable land and arable land is described, the sources of water supply are determined and their technical condition is estimated, the territories where irrigation of agricultural lands assessed as critical are detected. The solution of such tasks will allow to work out scientifically justifi...

The areas of gold mining in Kemerovo region in Russia are highly transformed by technogenic processes connected both with the ore extraction and processing (dressing). In Kemerovo region there are two former gold mining areas characterizing by strongly altered landscape and pollution by toxic chemical elements. There are two types of waste storage in these territories пїЅ waste dumps and tailings. The waste storage sites have definite impact on the surrounding environment leading to the changes in geochemical feat...

In central and western Poland in the rural areas there is a lot of lignite deposits, which utilization by building mining and power complexes could give impetus to development. The paper attempts to evaluate the impact of their construction by comparing socio-economic development indicators and quality of life conditions of residents in two regions. In the area of Belchatow, in which operates the largest lignite mine and the lignite fired power plant (commune Kleszczow) and commune around deposit Gubin-Brody with ...

The relevance of the study is caused by the poverty of the region of researchon sweet water resources: there is a shortage of water resources suitable for domestic and drinking needs. The giant sand massif Naryn of 30 thousand km areabetweenVolgaundUral rivers is practically not studied. Themassifisconsideredasaperspectivebecauseofpresence of fresh groundwater lenses of considerable scale, development of continuous large ridges and barchan-type massifs. Eoliansandshaverelativegoodfiltratingsurfacesandsandcapacitie...

The problem of recreational use of forest areas in modern conditions has gained special relevance. This is due to the following reasons: increase in neuro-psychological stress, number of stressful situations and the desire of the people to remove these loads, i.e. to improve their psycho-physiological state in a forest; development of the road network and means of transport; a variety of landscapes and a wide range of recreational opportunities (recreation, collecting of mushrooms, berries, balneological effect of...

Bucharest-Ilfov Development Region is located in the central part of the Romanian Plain and includes the Bucharest municipality (the capital of Romania) and Ilfov County. Man-made hazards can involve casualties and environmental pollution, also being recognized for the generated social, environmental and economic impacts. The current study entails the regional assessment of multiple man-made hazards (sometimes referred to as technological hazards) in one of the most developed Development Regions in Romania, i.e. B...

In all countries, many practical observation and theoretical studies are devoted on the soil and water erosion. However, there are still significant shortcoming in theoretical and experimental parts due to the underestimation of its physical causes and excessive enthusiasm of "empirical formulas", which is not often taken into account the elementary physical conditions in erosion processes, so the responses are not very accurate. There is also other useful model which is called GIS; the model is very powerful to e...

The main and typical changes in the natural complexes of tundra and forest-tundra in the areas of development of oil and gas fields were considered. Assessment of the stages of transformation of plant communities and soil cover due to anthropogenic load has been characterized. With the development of gas and oil fields in the north, pollution leads to a significant transformation and degradation of natural complexes. However, these violations are insignificant in area and localized. Various mechanical disturbances...

Reliable estimates of water balance components are important for solving various tasks in water management, such as hydropower management, flood forecasting, etc. It is well known that the modeling of the water balance components is associated with several problems, e.g., uncertainty in inputs, model parameters and model structure. Considering various data sources in the parameter estimation process can be a good way to improve model consistency and also to reduce parameter uncertainty. The objective of this study...

The Vrancea seismogenic zone is real menace not only for Romania but also for the neighbouring countries. Vrancea earthquakes cause casualties mainly in northern Bulgaria. Vrancea source is rather active one пїЅ more than 10 quakes with magnitude 5.1 < Mw < 7.0 (depth of hypocenters of 40 to 154 km) occurred during the last 30-ty years. In the last decade the Vrancea quakesпїЅ impact on our territory have been thoroughly recorded by the digital stations of the National Strong Ground Motion (SGM) Network of Bulgari...

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...

A great problem of maintenance of highways in the Northern territories пїЅ environmental pollution of anti-icing materials. Chemical compounds as a part of the anti-icing materials can also have a negative impact on metal and concrete structures of facilities along the roads. Method of sampling of water and snow along the roads is presented in the article. The results of the chemical research of the degree of water pollution in the canals of highways witch operated in the city of Arkhangelsk and the Arkhangelsk re...

The research in dairy cows in mountain aria demonstrated that the arithmetic average of the mammary repose period is about 62 days. This value is very close to the desired value of cow breeders. Very high value of the coefficient of variation (57.28%) shows that we are dealing with an average resulting from compensation. This theory is supported by very large difference of about 13 days between arithmetic and probable average of dry period. Probable average is 49 days to 311 registered cows, preceded by a shorter ...

Petri nets is one of mathematical modeling languages for the description of all kind of parallel systems. The new class of P/T Petri multiprocess multinets (PPMM) and its ASYNC-CALL operation are introduced in this article and their base characteristic of the well-formed property is proved. PPMM then generalize the definitions of the bi-relational P/T Petri nets and the P/T Petri process nets and their operators that follows from the base ideas of Petri net processes and their property-preserving Petri net process...

This paper presents an approach of using Augmented Reality (RA) technology for operator training in quality inspection of various large sized metallic products such as pipes, weldings, metal sheets, etc. An Android software application has been developed and implemented using Unity 3D Software Development Package(TM). The proposed application simulates the use of various ultrasonic sensors/probes to train human operators without the need to use the actual expensive inspection equipment. The user manipulates a 3D p...

Small water reservoirs are considered to be an important part of landscape retention capacity. Historically, such reservoirs occupied much more space in the area of present Czech Republic. According to droughts in recent years, the increase of a number of small water reservoirs is considered to be desirable. The identification of profiles suitable for building new small water reservoirs is one of key points in this field as the amount of financial resources is limited. Usually, the identification is done manually ...

Improving diagnostic efficiency of pulmonary diseases is now a very urgent task. For the construction of automated systems of recognition and classification of radiographic images is necessary to perform the process of localization of pathological formations on chest fluorography. The correct choice of the method of segmentation for studying radiographic image segments provides quality and improves the accuracy of diagnostic decisions taken. The article shows a block diagram of a device that implements a method fo...

The aim of the paper is to solve design of the automatic identification system via radiofrequency technology with respect to spatial analysis data acquisition. The compact system of automatic identification at railway defined by GS1 standards enables to monitor motion and operating status at the level of whole trains, wagons or even at the level of individual container or other load. If the acquired data are supplemented by coordinates of places, where they were obtained, those can be used for the spatial analysis...

Paper deals with important aspect of organization and implementation of transport operations and transport processes between points of origin and points of consumption in order to meet requirements of GS1 standards to fulfill supply chain needs. Designed information system (hardware, software and communication features) is installed on each logistic unit (wagon, container etc.). This allows to use extended self AutoID functions for low level data preprocessing. Paper focuses on train composition of both rail and r...

There is known about 57 species of Legionella bacteria which contains at least 79 serogroups. Some of them are considered as a potential human pathogens. Legionella occurs in natural and artificial water environment, especially in technical water supplies. The main cause of infection is an inhalation of aerosol infected by the bacteria. The preliminary research was performed. The main purpose was verification of bacteria from Legionella group occurrence in hot water installations, in public buildings and assessmen...

The aim of this paper was to analyze Bancroft positioning algorithm with comparison to the use of the uncorrelated reference point indicators, and present the results of experimental studies. Comparison of the results was Carried out in MATLAB, the source code is derived and the results are presented. The most popular method for a position determination in GNSS is to use autonomous positioning. This is the basic algorithm used in GPS systems. However users can use other positioning algorithms, depending on what th...

Since the beginning of deep mining for the acquisition of minerals or driving galleries, later tunnels, man has faced the problem connected with draining used and polluted air (the so-called mine air), and transport of fresh air to the workplace. Since time immemorial, mine air has influenced and prevented the work of miners and drifters, as well as of the mechanized technology. The most significant factors of air pollution include exhaust fumes of mechanisms used in the performance of work, blasting fumes and, ob...

The article presents the fossil fuels combustion effects in terms of the dangers of increasing CO2 concentration in the atmosphere. Based on the bibliography review the negative impact of increased carbon dioxide concentration on the human population is shown in the area of the external environment, particularly in terms of the air pollution and especially the impact on human health. The paper presents biomass as the renewable energy alternative source to fossil fuels. Biomass can be an essential alternative to fo...

In this study, the adsorption behavior of natural zeolites (clinoptilolite) with respect to Cs+ has been studied in order to consider its application to purity radioactive wastewater. The natural zeolite was activated in two steps. In the first step with a 2 M HCl solution and then with 2 M NaOH solution. The natural and the chemical treated zeolite was subjected to FTIR spectroscopy, XRD (X-ray diffraction) and SEM (scanning electron microscopy) and EDX analysis. The batch method and column studies have been empl...

Based on scientific-technical progress in modern period the industry and transport is developed, new technologies are introduced and requests at natural resources are grown. All the above-stated cause worsening of biosphere indicators. Therefore, studying air pollution and radiation background growing tendencies has international, global importance. During last years, in most countries of the world including Georgia worsening of environmental conditions are noted, pollution of atmospheric air and growing radiation...

The research analyses the five-year results of the beach marine litter monitoring programme in Latvia and looks into its potential and applicability as a tool for environmental policy making and promotion of the sustainable coastal management at municipal level. The monitoring programme, based on UNEP methodology, has been established in the year 2012 by the NGO Foundation for Environmental Education Latvia (FEE Latvia) and operates not only as a litter survey initiative as being only one coastal monitoring in the...

Carbonaceous overburden rocks carry a heightened metallogenic potential. The possibility of extraction of valuable metals from natural bitumens and overburden rocks of oil fields is considered. The results of mineralogical and technological researches of samples are presented. The analysis of sample has shown an increased content of valuable microelements in some objects. All samples contain carbon of varying degrees of metamorphism. The fact of simultaneous concentration of carbonaceous rocks by several microelem...

In the last years, turbo-roundabouts replace conventional multi-lane roundabouts with aim to ensure a higher level of traffic safety and capacity. The most important feature of turbo-roundabouts is a spiral course of the circulatory carriageway allowing drivers easily pass through the roundabout from the entry пїЅ circulatory carriageway пїЅ to the exit without a need to change traffic lanes. Despite of an original proposal assuming the physical separation of spiral lanes, in many countries, the lanes are пїЅsepar...

Developing biocomposites materials is a part of the strategy of sustainable development in construction. This paper presents the advantages, the disadvantages and problems, still unclear, to achievement the biocomposites materials, HEMPCRETE type. The most important thing, highlighted by literature regarding the creation and use of this material type, is the extremely low impact with the CO2 pollution, which usually accompany technological manufacturing processes, putting in place and exploitation of construction ...

The goal of study was to develop the method of food biopreparations production based on corn extract and DDGS - liquid waste of starch and ethanol production for usage in food products as acidity regulators instead of very expensive organic acids. Processes of waste bioconversion using Lactobacillus Acidophilus were the basis for biopreparations production. There were developed the modes of cultivation of lactic acid bacteria on nutrient media, the stages of productions were determined, chemical and biochemical co...

Nowadays, the leading place in space industry production materials belongs to reinforced polymers. One of the most popular reinforced polymer in this sector is produced from aramid fibers and epoxy resin as matrix with hot solidification at temperature 160 пїЅ 170 grad. Celsius. Despite the automated winding technology on modern machinery, there is an accumulation of epoxy resin as a waste happens. This paper is devoted to the processes of curing low-viscosity epoxy resin waste under the influence of orthophosphor...

The dominating feedstock for biodiesel production is still a vegetable oil and cost of the oil composes 80-85% of the production costs, therefore the development of the more efficient methods for biofuel production from vegetable oil remains crucial. The transesterification of oil proceeds with the production of side product: glycerol, which cannot be a part of the composition of fuel. Chemical interesterification of oil with alkyl acetate produce a mixture of fatty acid esters and triacetin. Triacetin is a fuel b...

Ostrava Lagoons belong among the most polluted areas in the Czech Republic. According to the available information, about 200 000 t of sludge from the industrial processing of crude oil during the whole 20th century were disposed there. The sludge contains high levels of organic pollutants (PAHs, PCBs, C10 - C40 hydrocarbons), including toxic metals of anthropogenic origin (As, Cd, Cu, Hg, Ni and Pb). A number of autochthonous microorganisms were isolated from the lagoon sludge. This study focuses on the biodivers...

Westphalian A marine horizon Dunbarella is especially important for correlation of Carboniferous in the Lublin Coal Basin (LCB), and in the other basins of the Northwest European Carboniferous Basin (NWECB). Within the horizon Dunbarella an abundant fauna, mainly Mollusca (predominantly bivalves, goniatites, gastropods) and Brachiopoda, were identified. The distribution of fauna in the analysed horizon within the investigated boreholes, fluctuates in terms of both abundance and taxonomy, and cyclic sedimentation t...

Different operations, such as fleshing, trimmings, cuttings and chips from hides, causes leather industry in being one of the most environmental пїЅunfriendlyпїЅ sectors. Moreover, the treatment of sewage waters brings up also the problem of mud which is related with the appearance of biodegradation process of organic waste, followed by the emission of greenhouse gases, especially methane and nitrous oxide. All these wastes also imply a terrible smell and a strong land contamination. The large quantity of wastes, ...

The aim of this study was to evaluate the level of nine biogenic amines (putrescine (PUT), cadaverine (CAD), tyramine (TYR), tryptamine (TRY), 2-phenethylamine (2-PHE), histamine (HIS), spermidine (SPD), spermine (SPM) and agmatine (AGM)) into wines and beers from the local market of Romania. Their concentration in beer is of great interest not only for their potential risk to human health but also because they could have a role as chemical indicators of unwanted microbial contamination or deficient processing con...

The work represents the data of the research of the chemical composition of epiphytic lichens Evernia mesomorpha (L.), growing around the tailings of a former gold-polymetallic deposit (Kemerovo region. Western Siberia, Russia). The lichen samples were collected from trees according to a radial net (20 samples in total). The concentrations of chemical elements in the dry lichen matter were determined by the mass spectrometry with inductively coupled plasma. The results obtained were compared with the concentration...

The purpose of this work was to study specific features of the accumulation and distribution of the total content and mobile forms of heavy metals (HM) in soils and plants of the estuarine ecosystems of the Don river and the Taganrog bay coast (Russian Federation). The soil cover is represented by following soils types: Fluvisols, Haplic Chernozem, Arenosol, Solonchak. The following higher plants were sampled: Phragmites australis Cav., Typha angustifolia L., Carex riparia Curtis, Cichorium intybus L., Bolboschoen...

In EU countries, it is currently enacted to separate all recyclable and compostable elements of municipal waste. The products of composting biodegradable fractions of municipal waste are finally used in agriculture and horticulture depending on their quality and maturity. When disposing biodegradable municipal waste (hereinafter BDMW), it is always necessary to keep in view that its decomposition is assisted by a wide scale of various organisms out of which some may be a reason of occurrence of serious biological ...

The tomatoes are widely spread on all globe because the fruits have an important content of carbohydrate (2.9 - 7%), vitamins (A, B, B2, B6, C), salts of important mineral elements (K, P, Fe, Ca, I, Mg) and organic acids (0.5-1.5%). They are considered one of most important vegetable crops. The Romanians have classic options about the vegetable taste; they appreciate tomato with superior organoleptic qualities, the пїЅtaste of Romanian tomatoпїЅ. In Romania, the aim is the propagation and the cultivation of Romani...

Bacillus genus covers a wide spectrum of microorganisms able to produce various polymorphic forms of silicate minerals in the form of crystalline structure based on diverse sources of silicon. Bacterial microorganisms along with mineral crystals were examined on human skeletal remains in different phases of their decomposition which had been exhumed from a church tomb. In total, 52 microorganisms were isolated from the bone surfaces, among which prevailed the bacteria belonging to the Bacillus genus. This bacteria...

The fruit represents the group of foods with vegetable origin, very precious from nutritional point of view, rich in carbohydrates, cellulose, minerals and organic acids, needed daily for the human body. A popular form often used for preserving fruit in cold periods, are fruit compotes which occupies an important place in our daily diet. Pineapples and mango fruit are consumed fresh, cooked, juiced and also can be preserved. The aim of the study was to evaluate some physicochemical characteristics (pH, total solub...

U(VI) biosorption by six natural materials: three types of peats, Polytrichium moss, EichhпїЅrnia crпїЅssipes water plant and Cladonia stellaris lichen was investigated. Natural sorbents were selected, as it is available, cheap and accessible materials. The effects of initial concentration of UO2 2- in the model radioactive solution and pH on the sorption uranyl ions were assessed. Adsorption isotherms and constants for given adsorbates and adsorbents were determined. Equilibrium is well described by Freundlich eq...

This paper presents the results of micropaleontological research of foraminiferal fauna and calcareous nannofossils research of the Upper-Eocene sediments in the Delchevo and Strumica basins on the territory of the Serbian-Macedonian massif in the Republic of Macedonia, which are very important in solving the stratigraphy of the sediments. The studied micropalaeontological material was obtained from 31 samples coming from the upper flysh unit of 2 outcrop sections belonging to sedimentary basins: Delchevo and Stru...

Lactoferrin (LF) is a globular glycoprotein with a molecular mass of about 80 kDa. It exists in two forms: apo- and hololactoferrin. Lactoferrin in the molecule has two domains that bind Fe3+ ions with high efficiency. The physiological properties of the protein are mainly due to binding to the iron of the active form by unsaturated iron (apolactoferrin). An iron-saturated form (hololactoferrin) is inactive. Raw milk contains mainly up to 90% apo-LF. Human milk is very rich in lactoferrin (about 1.7 g/L), and bovi...

Work purpose пїЅ study of the feasibility of using biotesting methods for screening ecologically safe components of drilling solutions, to control the technology of neutralizing drilling sludges in the case of sumpless drilling. To achieve the purpose, biotesting methods based on the survival of daphnia, infusoria, quenching of luminescence of luminous bacteria, immobilization of algae was used. For reduction in cost of technology of drilling studied a possibility of replacement of medicines of chloride sodium by ...