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This work is aimed at investigating the carbonate collector micro-jointing using the results of the precision underground water level monitoring at the Mikhnevo Geophysical Observatory (пїЅMikhnevoпїЅ GPO). For a long period of hydrogeological observations from August 2013 to December 2016 a database of local mini-cones recorded in the observation well was formed. The leading factors that influence the process of the level recovery of mini-cones based on the systematization and generalization of selected mini-cone...

Our research deals with the possibilities of finding and documenting the historical field fortifications of the Thirty Years' War (1618-1648) in the Czech Republic. The archaeological site that was investigated is located in the western part of the Czech Republic, between T?ebel and VysokпїЅ SedliпїЅt? villages in Tachov district. Terrestrial laser scanning, winged RPAS (Remotely Piloted Aircraft System) and geophysical instruments GPR (Ground Penetrating Radar) and a magnetometer were used to prospect and documen...

The paper discusses problems associated with attempts at limiting waste that is the result of the functioning of the modern economy. This is associated with the use of new, sustainable systemic solutions in terms of the manner of designing cities and buildings that use existing resources to the highest possible degree while not generating waste. The impact of new, ecological cities is to be neutral to the extant ecosystem. Buildings are to be erected solely from recyclable materials and roofs covered in greenery i...

Sulphate is the specific anion present in the acid rock drainage (ARD). Although sulphate is considered benign or with low toxicity, some countries have set limits for the wastewater discharged to natural receivers, often 500 mg/L or 600 mg/L. By conventional treatment of the ARD with calcium hydroxide, some gypsum can precipitate, depending on the ARD initial sulphate content, but the conformity for sulphate will not be achieved, because the concentration correlated to gypsum solubility exceeds the limit value by...

Lake water quality determines the possibility of its using for technical purposes (as a source of drinking or industrial water) and for recreational using (swimming, angling, water sports). In modern times the water quality state is deteriorating because of excessive anthropopressure. The attempts of water quality improvement are taken via technical methods implementation. In order to predict the effects of potential restoration actions the great need exists of the models development, which can help to select the ...

The use of marine algae in plant cultivation has been known since antiquity, but their application to reduce abiotic stress has been reported in recent years, when the use of technology based on healthy products for humans and other organisms has become a priority. In this work, we investigated the effect of a seaweed extract from the brown alga Ascophyllum nodosum (L.) Le Jolis (SuperFiftyпїЅ 0-0-8) on drought stress tolerance in Phaseolus vulgaris L. Been plants have been influenced by drought stress for a week ...

The purpose of this study is to highlight the flavour compounds found in tonic beverages obtained from plants with bioactive potential. Identifying these compounds through GC-FID (gas-chromatographic coupled with flame ionization detector) modern methods are leading to the appreciation of these beverages and the possibility of improving the proposed recipes. Six drinks rated B1, B2, B3, B4, B5, B6 made from indigenous plants; the plants were dried at 65 пїЅ C, macerated in 50% vol. ethanol for three days in a rati...

On the last four years, we take surveys on the diseases of some plants from natural habitats which, over time, support improvement by plant breeding process One of the locations where we can found such natural resources is the Nera River valley, inside of the National Park, and those is the main reason we are sure that this plants are on their natural habitat. Regarding elderberries shrubs (Sambucus nigra) on the research area, they are well represented as populations along the river sides. It is well known the ut...

In this paper, it presents a modality for verification of conformity the parts which are achieved on CNC machine tools, modality which takes into account the production process capability. By this control method it determines the capability of the technological process of making the piece, it can be applied either on the technological process flow, or on reception of consignments of products. As the case study, it was considered a piece ,,end effector,, used in industry building of machine, whose volume of achieve...

The populations of the native silver lime species (Tilia tomentosa Moench.), one of the most important forest tree species in Western Romania, Caransebes area, show strong vitality and a large morphologic variability. The present carried out research would like to contribute to explaining some aspects of the genetic diversity. The extension of silver lime, during the last decades, in the Caransebes area natural forests (by natural regeneration) seems to be a visible issue in the present-day climate change context....

In order to make selection methods more efficient and to make improvement works perfect in developing new mustard cultivars at the Agricultural Research Station in Lovrin, we carried out a series of research and biometrical measurements starting from the necessity of better knowing specific variability, quantitative features, productivity features, the way they are passed on hereditarily, and the intensity of the correlations between them.Yielding capacity is a complex quantity feature based on a large number of e...

The relationship with pet has been for many years in the attention of researchers, with studies which approached the relationship under very different aspects. Researches has focused on the multiple benefits of different stages of individual development (from kindergarten to elders), on gender influences over many related issues (animal attachment, involvement in animal welfare activities), on the therapeutic aspects (positive influences on cancer patients, depression, etc.) and, last but not least, the positive c...

A leading cause for offshore decommissioning is connected with assessment of increasing level of risk due to progressive structural damage and danger potential, in both structural and technological collapse, taking into account the environmental conditions and operational loads for which structure undergoes. The purpose of this paper is to express the vulnerability due to fatigue phenomenon of structural elements - studied on a model corresponding to self lifting Romanian offshore platform "Gloria" - as annual yie...

In installations in which flammable substances are processed, transferred or stored, explosive atmospheres generated by flammable gasses, vapors and mists or combustible dusts can occur. The assessment of these installations and equipment within is very important in order to verify the implementation of measures that lead to minimizing the risk of ignition of explosive atmospheres and occurrence of an explosion. In Romania, technical installations that operate in environments with hazard of explosive atmospheres m...

In essence, the paper presents the tracking of the behavior in time of hydro-technical constructions by establishing the horizontal displacements (dx and dy) compared to the base tranche and the previous tranche, and also the processing of these measurements and establishing conclusions and recommendations regarding the behavior of the objective taken into study. As studied objective was elected CпїЅnde?ti dam, which is located in Buz?u county, at about 19 km upstream from town Buz?u. The dam is situated on the Bu...

A large number of structural damages reported during the past decades around the world associated with a high geotechnical risk have highlighted the major attention that should be given to the expansive soil category in engineering practice. For avoiding or mitigating the effects of clay expansiveness on civil engineering structures before construction, the identification of soil parameters related to swelling behavior is considered essential in solving geotechnical engineering problems. This paper aims to analyze...

Superior capitalization of industrial waste as: slag heaps, plastics and rubber, vegetable and animal oils, natural or synthetic fibers, make significant contributions to reducing pollution, environmental protection, to increase eco-efficiency, reduce production costs per km of paved road. From the point of view of physical and mechanical properties most suitable materials that can replace mineral aggregates are blast furnace slag which after waste processing and sorting through the appropriate dimensions can succ...

Storage, protection and recycling of explosives, gunpowder and rocket fuel obtained from utilized ammunitions is significant problem. It requires, special services for safety and corresponding additional expenses on security and ecology. Same time, they are energetic materials and attractive for chemical and mining industry. One of the main directions for solving the above-mentioned problems is application of utilized ammunition for development of new industrial explosives for mining industry. Implementation of ne...

In Europe, the knowledge and measures regarding self-protection in case of emergency is very poor in general. Within the population, young people aged 7 пїЅ 12 require a special approach, as their knowledge and behavior is different from adults. Their perception of accidents and disasters needs to be educated through an efficient teaching program. Therefore, a first step in developing such a tailored education program is to assess the natural hazards in European countries, with a special focus on the hazards that ...

Springs are one of the essential part of water suppling system in Rostov on Don. Nearly 60 springs are known to exist in the city. Rostov region is located in the arid climate zone, where there are limited natural resources of fresh groundwater. At the same time, region due to the regional hydrogeological relation is situated at the junction of four artesian basins in their regional parts focused significant resources of fresh pressure water. Springs and wells in Rostov on Don are pumped from the Azov-Kuban aquife...

The majority of current water quality measurements are based on the traditional in-situ point sampling and laboratory analysis of the samples. This method, besides being time and financially more consuming than the remote sensing, also very often lacks a sufficient spatial and temporal resolution to adequately analyse and describe different phenomena (i.e. eutrophication). In this study, we have assessed the possibility to use air-borne hyperspectral remote sensing for mapping concentrations of different water qua...

PutnaпїЅVrancea Natural Park (38,204 ha) is located in the eastern part of Romania, the upper part of Putna River Basin (Curvature Carpathians). It includes valuable complex forest ecosystems, mountain meadows, also known for the large variety of flora and fauna. Over the past almost thirty years, the study area was subject to diverse natural and man-made environmental stressors which had significantly influenced land use/cover changes with a particular impact on forest-covered areas. The current paper is seeking ...

First results about crustal models were obtained from various geophysical and seismological methods applied in Romania in the last part of XX century. A thorough interpretation of these data lead to the first partial models of crustal structure in the western part of Romania. In the first years after 2000 two regional seismic refraction lines were performed within a close cooperation with German partners from University of Karlsruhe. One of these lines is Vrancea 2001, with 420 km in length, almost half of the eve...

One of the main objectives of EU energy policy is to increase the share energy from renewable sources to 20% by 2020, in view of increasing this share in the coming years. Sustainable and perspective source in diversification of share and its increasing are targeted grown energy crops. In Slovak regions, the share of the renewable sources in the gross final energy consumption is only 11.6%. Potential for growing energy crops is in all Slovak regions. In terms of soil factor is the possibility of growing on an area...

Assessments conducted by the various failures analytical groups shows that failures of cylinder liners, piston rings and pistons all related to combustion chambers share the highest proportion every year in Marine Main Engines failure statistics by component part, conversely, excessive wear of cylinder liners and piston rings of Main Engines and problems associated with scuffing have frequently occurred. To solve these problems, it is necessary to conduct analytical assessments on a variety of data such as actual ...

When operating waterworks, it is required to refine the data on actual stresses in different structural elements of the facilities. The authors put forward a nonconventional approach to expanding the waterworks observation network. The quantitative assessment of stresses in a structural element at the given moment of time is performed using borehole techniques of geomechanics. Later on, the change in the stresses and deformations is controlled based on the data on deformation of sidewalls and damage of galleries u...

In system of sustainable and safe development of regions one of the major tasks is scientific justification of a control system of health of the population at the expense of risk assessment to health of the population from negative impact of factors of the environment. One of the leading factors of anthropogenous impact on health is aerogenic. The paper studies public health risk assessment from the chemicals emitted city's largest enterprises. The analysis is performed on the basis of the qualitative and quantita...

The contemporary construction, both new buildings and renovations, is characterized by the low air permeability of the building envelope. The high airtightness of the building envelopes reflects current energy-saving trends. However, saving energy is a contrast with hygienic conditions (supply of fresh air). The well-being of occupants is defined by the interaction of the physical, chemical and biological components of the internal environment of buildings. The basic factors of indoor air quality are indoor air te...

In Romania, wheat is the main crop, occupying the largest area of arable land. Convolvulus arvensis is a competitive and invasive weed, produces direct and indirect damages to which is added production of allopathic substances. Allelopathy is a natural phenomenon which refers to any direct or indirect effect, positive or negative of a plant (including microorganisms) on the other by the release of chemical compounds in the environment [13]. In most cases, influence is inhibitory, which may explain why some plants ...

Air pollution represents at present the biggest threat to human health due to high levels of pollutant emissions, usually in high-traffic urban areas. Air pollution has been associated with a number of health problems, including heart disease and lung cancer. Urbanization associated with rapid industrial development has led to serious air pollution problems in many large cities across Europe with significant impact on public health and even on the global climate. Information on air quality in urban areas is an imp...

The aim of this work was to determine, comparatively, the content of vitamin C (by iodometric method), polyphenols (by Folin CiocпїЅlteu assay), chlorophyll pigments, carotenes, xanthophylls (by spectrophotometric method) and the antioxidant activity (by CUPRAC method) for some frozen vegetables on the Romanian market: okra (Abelmoschus esculentus), green beans (Phaseolus vulgaris)- Serengeti variety and green peas (Pisum sativum) пїЅ Alaska variety. Frozen peas was the most rich in ascorbic acid (9.32 mg/100g) an...

Human activities as land use and management impact soil functioning. These are amplified also by stress factors as extreme climate events (drought, flood, heat waves) and meteorological anomalies, consequence of climate change. Although there are clues on how these challenging factors affect quality and functioning at its top surface (between 0 пїЅ 15 cm), there are minor information on how these impact soil in its depth profile. This study present obtained data from assessment studies performed on agricultural la...

Nowadays, deforestation process in Romania is in a growing trend considering the need for wood in industrial process, the fast rate of illegal logging and the need for lands in agriculture. Forest areas are subject of an increase pressure from socio-economic factors. Wood is used frequently as construction material and combustible. We investigated the evolution of forest areas in North-East Development Region and the incomes in economy related to forest activities (sylviculture and other forestry activities, loggi...

Background: The aim of this study was to analyse the serum biochemistry of value intervals for the most commonly used energetic biochemical variables of European mouflon from a game reserve in the eastern part of Slovakia. From biochemical variables, glucose (GLUC), cholesterol (CHOL), high-density lipoprotein (HDL), low-density lipoprotein (LDL) and triglycerides (TRIGL) were analysed. The obtained values may be of use for the health assessment of Moulton in further studies. Methods: During the research between 2...

In this paper, we present a performance assessment of the implementation of the algorithm of wave sources location using wave field modelling on a Graphics Processing Units (GPUs). The numerical algorithm of wave source location based on the acoustic wave equation was implemented using finite difference method. To achieve better wave source location, the algorithm was implemented using staggered grid meshes. The parallelization was carried out using GPU approach, established in NVIDIAпїЅs Compute Unified Developme...

The aim of this study is to assess the impact of climate change on the frequency and magnitude of marine hazards (extreme) events. The study was carried out for the Baltic Sea, which is under increasing pressure of maritime activities and becomes more vulnerable to climatic effects due to declining seasonal ice cover. Estimates of extreme events are derived from the current global and regional hydrodynamic climate models that have been used to define the marine boundary conditions, atmospheric and riverine forcing...

In the recent decades, environmental pollution has been one of the major interesting research subjects where pollution might have a direct influence on public health and possibly cause serious and irretrievable damage to the Earth. The aim was to determine the levels of the heavy metals, Cu, Zn, Cr, Cd, Pb and Ni, in soil of urban areas in the city of Brno (Czech Republic). Soil analysis was performed on urban soil from the same layer, where the soil samples come from the depth of 20 cm. These samples were taken f...

In the present study it was evaluated the capacity of molasses for removing seven metals (Fe, Zn, Cu, Cd, Cr, Pb, and Ni) from three types of waste: galvanic sludge (pH = 7.1 пїЅ 7.8), mineral residue from a lead metallurgical plant (pH = 5.0 пїЅ 5.8) from Baia Mare (Romania), and tailing pond residue from Aurul - Baia Mare (pH = 2.1 пїЅ 3.0). Several leaching tests were conducted in the laboratory in order to investigate the influence of molasses concentrations (0 %, 1%, 5%, 10%) on heavy metal leaching. It was o...

The article concerns the problems of assessment the stability of the historical mine excavations which will be adapt to the underground tourist route. The issue is very important because of the special safety requirements for people (visitors), which do not have specialized safety training for employees of a typical underground mines. Post-mining facility, open to the public in 2013 in Krobica in Poland was characterized. Excavations from the XVI-XIX centuries are located in the rock mass characterized by a diffic...

Gas flow through porous media is a physical phenomenon commonly occurring in natural environment and in many industrial applications. This phenomenon is most often connect with filtration process and migration of gases through different porous structures, mainly rock media. In these medium there occur free spaces of different shapes, in which flow of gas is possible. These spaces create pores (for which longitudinal dimension and transverse dimensions are similar) and gaps (for which transverse dimension is consid...

Flow of gases through the porous media is a phenomenon commonly occurring in nature and in industrial processes. Very often these flows take place in rock media. Most often these media occur in a form of porous rock massifs (used in exploitation of crude oil and natural gas), broken roof rock blocks (forming the goaf with cacing in hard coal mines) and post-mining waste dumps (mining dumps). In each of these porous media there occur free, often empty spaces of different shapes and dimensions. These spaces, dependi...

One hundred and fifty-six groundwater samples were collected from the Aosta Valley region, Italy and analyzed for pH, electrical conductivity (EC), total dissolved solids (TDS), total hardness (TH), major cations (Ca2+, Mg2+, Na+ and K+), major anions (HCO3-, F-, Cl-, NO3-, SO42-) to evaluate the hydrogeochemical characterization as well as water quality of the area. A geographic information system (GIS) tool was used to study the spatial variation in the groundwater parameters of the study area. The analytical re...

The increase in the number of potentially toxic substances has led to a more complex task of determining the toxicity of water resources. This is due to an increase in the number of necessary techniques for the separation, identification and subsequent analysis of individual components. At the same time, the determination of quantitative relationships between individual components does not allow us to determine precisely whether these concentrations are sufficient to classify the water samples under study as toxic...

During operation of underground gas storage there is the possibility of a gas leak under certain circumstances. It can be caused by leakage of gas from underground gas storage due to the untightness of injection/withdrawal or observation wells. This leakage of gas can be happened in the case carrying out cementation of casing string in low quality. Presented article focuses on the control of wellпїЅs tightness using pressure measurements on annular casing. The aim of pressureпїЅs measurement on casing strings is t...

Cities have a significant contribution to the contamination of urban lakes by input with surface runoff, illegal wastewaters discharges, sewage discharges, which lead to increased eutrophication and reduce the ecological health status. Complex temporal monitoring is needed to understand the changes in water quality, including dissolved organic matter. This study presents the first temporal evaluation of dissolved organic matter from urban lakes, using fluorescence spectroscopy. Samples were collected from urban la...

Labour protection involves the safety and health of employed individuals. It has to be one of the priorities for any employer, as employees are a resource to be cared about and made satisfied. In Latvia, regardless of the requirements of law, the State Labour Inspectorate revealed 10 815 violations of the labour protection legislation in 2014. Besides, in the period 2010-2014, the number of accidents at work annually increased, reaching 1763 in 2014, of which 213 accidents led to serious health disorders, while 41...

The paper presents the results of standard plastic limit test and fall cone test also used to determine plastic limit. Tests were performed on three clay soils. Soils differed from each other various percentage of the sand fraction. Plastic limit is standardly determined by hand rolling soil specimen. A sample of soil has moisture on plastic limit when the roller of the soil of 3 mm diameter begins to break up (CSN EN ISO/TS 17892-12). The test results are highly dependent on access laboratory technicians which pr...

This paper presents an assessment of power generation losses of a hydropower plant (HPP) due to an imposed reservoir management plan and comparisons in terms of monetary value with the existing management plan but with an eutrophic reservoir. The study case is represented by Gole?ti reservoir, which is a shallow reservoir in Romania, and the associated HPP. Gole?ti reservoir is an artificial lake of medium size, which has a 55пїЅ106 m3 volume and a maximum depth of 32 m. Its use is complex: it allows flood control...

Studies to determine the forms of finding copper and iron in the converter slag of the Balkhash copper production were carried out. The microprobe analyzes of converter slag show that in these samples a significant amount of copper is in a sulphide form, lead in both sulphide and oxide, and in the form of glass, and zinc in oxide. Laboratory studies on the flotation of the original converter slag, as well as after remelting and its slow cooling, were carried out according to a scheme including the basic, control f...

Saline soils do not play a leading role in human economic activity. At the same time, they occupy large areas in the world and perform important ecological functions пїЅ maintaining the biodiversity and sustainability of natural ecosystems. By the end of 2018, the road and rail bridge between Taman and Crimea will be built. The construction of the bridge, the operation of the road, and the development of the related infrastructure will strengthen the human impact on soil cover in the region. One of the negative ef...