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This paper presents a case study regarding the GIS applications on the slopes with frequent erosion processes in depth. Monitoring the gullies consists in identifying them in the land, their positioning on the map, their classification and recording according to several indicators and following their evolution in time. The study is carried out in a water catchment area of 4,665 ha in Berheci Superior, Bacau county, Romania. By using ortophoplanes, satellite images or air-photograms (in some cases) and the document...

The emergence and development of the internal combustion engine began in the 18-th century in England. But the first patent for a piston engine with compression ignition was achieved by Rudolf Diesel in year 1892 [1]. The engine use coal powder as fuel. The most used vegetable oil as a fuel and peanut oil. In the year 1859 in Pennsylvania was first released at the amount of crude oil that has been refined for kerosene and gasoline. Because a large quantity of by-products remained unused, Rudolf Diesel using a frac...

Microtexture is an important surface characteristic from the pavement skid resistance point of view. Its main role is to secure the basic friction level between tire and road surface by the contribution of the irregularities on the individual aggregate surface. Therefore the methods for its accurate evaluation are necessary. Two different methods for aggregate microtexture quantification and subsequent evaluation are presented in this paper. The first presented microscope method uses three dimensional image analys...

Rare earth element (REE) resources are nowadays of great interest because of their importance as raw materials for high technology manufacturing, being also significant as geochemical indicators. Various phosphate mineral bearing rare-earth elements (REE) have been observed in the D?rico-Beir? gold-antimony district (North Portugal). Besides apatite, the more abundant phosphate, xenotime, monazite and florencite were identified by scanning electron microprobe (SEM). They are usually associated to Palaeozoic metase...

Oil production decline in Russia can be explained by deterioration of its oil reserves. That is why the country pays much attention to development issues of high-viscosity oil fields of the Middle and Lower Carboniferous sediments. In this regard, using new chemical agents with combined effects and study of their impact mechanism has become of scientific and practical significance. This paper presents a laboratory physical simulation experiment to study reservoir performance after steam and chemical agent injectio...

Ultra-low-energy house (in some countries Passive house) is a term known very well to engineers and architects all over the world. In these times of minimizing an energy loads and negative emissions, energy efficient houses (ultra-low-energy, net-zero houses, positive houses) are one of the best ways to meet European ?20-20-20? targets. The main topic of this paper is dynamic assessment on energy performance of an ultralow- energy family house designed for Slovak Republic climate. Family house was designed taking ...

This paper presents results of research on feeding behavior of paddlefish (Polyodon spathula, Walb. 1792), performed at the Fish Culture Research and Development Station Nucet, D?mbovi?a, between 2002 -2007. The results confirmed the planctonofag character of this species. Paddlefish food consists primarily of zooplankton, insects and insect larvae, plant debris and detritus, identified in the intestinal contents. Feeding behavior is differentiated by age and size of fish. During the first days of life, juvenile p...

The sustainable development is an important issue for our society. Thus, urban green spaces are a key element in order to assure a sustainable urban development. Although, most often they are associated as having only an aesthetic function, the urban green spaces perform important socio-economic and environmental functions. Therefore, ensuring the existence of a great number of green spaces within an urban area is one of the objectives of the new European policies for urban planning, taking into account the sustai...

In 2016 Pasztor and Schultz[1] proposed an analytical method for calculating a perforation design?s effect on hydrocarbon-well inflow, using a new concept to analyze the effect of the shape of the perforation channels? drainage area. The method compares well with standard industrial methods used to calculate the pressure drop caused by a given perforation design. In 2017 Toth and Pasztor[2] applied their model to investigate geothermal-well inflow, and achieved promising results. The model?s complexity makes it un...

Petroleum and its derivatives are the main source of energy for industry and domestic consumption. Petroleum hydrocarbons are based on multiple carbon bonds that develop intense and raised complex structures when they bound with other characteristic molecules, hence the latest hydrocarbons have variety of forms and consist of short, medium and long aliphatics, aromatics and polycyclic aromatic hydrocarbons of different proportions. The accidental release of these hydrocarbons into the environment represents a majo...

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 ? 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 quakes? impact on our territory have been thoroughly recorded by the digital stations of the National Strong Ground Motion (SGM) Network of Bulgaria. I...

The aim of the article is to determine the importance of green areas in the selected cities of south-eastern Poland, in the context of historical and cultural conditions and the resulting spatial characteristics of the cities. In course of the study three city centers were compared which represented the different types of a city - a historic city (Przemy?l), an industrial city (Stalowa Wola) and a developing city (Rzesz?w). The way of urban greenery was organized and its specificity resulting from the city's origi...

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

The paper deals with applying of the GIS tool ?gap analyse? in order to assess the effectiveness of protected areas in floodplain forests conservation in the Czech Republic. European floodplains have been significantly influenced by human activities in the past. Despite of it floodplain forests are important biodiversity refugees and thus these forests habitats are in the focus of conservation efforts. Currently, the Natura 2000 network increasingly supports biodiversity conservation in Europe. Based on results of...

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...

This paper presents the diversity of parasites species identified on cultured fish species, the degree of infestation and the epizootological state in nine fish farms (most of them producing fish fry for stocking other fish farms). These farms are located in five counties in the south of Romania (Arge?, D?mbovi?a, Teleorman, Giurgiu and C?l?ra?i). A total of 653 fish were investigated. The fish species belong to two fish families namely Cyprinydae: Abramis brama, Cyprinus carpio, Carassius gibelio, Hypophthalmicht...

We live in the interglacial period that is causing warming effect on the Earth?s climate reflected in water scarcity. Water is an essential substance in agricultural production. Therefor appropriate management is necessary to achieve sustainability. Material flow analysis (MFA) provides an overview of the system by linking the anthroposphere with the environment, and can highlight environmental or resource issue problems. Thus MFA can be used as a tool of material management. We applied partial MFA for quantifying...

An original approach to studying acoustooptic interactions at infralow frequencies using seismic vibrators is proposed. The authors in numerous and natural experiments has been proved that such sources can radiate low-frequency acoustic oscillations, propagating in the atmosphere up to hundreds of kilometers from the source. High-precision metrological properties of vibrators on frequency-time characteristics open up possibility for investigating acoustooptic interactions at infralow frequencies. An acoustooptic s...

This paper deals with disinfection of drinking water at ?Aquatim S.A?. The disinfection plant is part of an investment plan to provide conformation with the Romanian Law 485/2002 concerning drinking water quality and European Union Water Frame Directive. The new facility employs modern techniques of storage, dosage, injection and neutralization of chlorine. Under these circumstances, the risk of chlorine leakage decreased and increased the accuracy of chlorine dosage. The regulation and control of the process is c...

Currently in Poland most of topographic measurements are done by surveyors using GNSS methods. Polish legal regulations concerning the standards of topographic and altimetric surveys only obligate to perform control measurements on at least two points of a horizontal control, located within the distance not longer than 5 km from the surveyed points. Those control measurements should be performed before or during the session of GNSS surveys. Legal regulations in Poland do not specify other technical parameters of G...

The microseismic monitoring is a method of monitoring of fracture propagation during hydraulic fracturing (HF)process. An array of several hundred geophones is placed on the surface to record little ground tremors induced by fracturing process. Filtration and summation of signals from geophones is essential to identify and locate fracturing events from underground. Authors propose a method of matched filtering, that is usually used for detection of outliers in music records, to improve signal to noise ratio. A rea...

The West Carpathians consist of an older, internal orogenic zone known as the Inner or Central Carpathians and the external, younger one, known as the Outer or Flysch Carpathians. The Outer Carpathians are built up of a stack of nappes and thrust-sheets showing a different lithostratigraphy and tectonic structures. The Outer Carpathian nappes are thrust over the North European Platform and its Miocene-Paleocene cover. They correspond to more or less separate sedimentary basins and every basin generally displays a ...

The seismic investigation of buildings is in accordance with two important Romanian Codes, P130/1999 and the seismic design code P100-2013. Criteria for selecting buildings proposed to be seismic investigated/monitored are numerous: seismic zoning of the territory; data on structural system and types of existing structural systems, depending on the material pre and post-1940; the effect of vibration other than from the seismic vibration; location-site; seismic stations and sensors, sensors position/location in a b...

The Leningrad Region is a big/one the main subject of the Russian Federation with a highly developed industrial, transport and scientific potential. The article provides an analysis of some environmental problems typical for this region. Based on the aggregation of statistical information, data is provided on the structure and dynamics of total emissions, air pollutants, as well as emissions and sinks of greenhouse gases in various sectors of the economy of the Leningrad region. The features of deposition of subst...

Hydrocarbon producing companies are looking at recovery factor evolution and replacement ratio of reserves as they are critical indicators for investments. Subsequently, these factors impact the business development process and the profitability. Maximizing the recovery factor means to have a detailed knowledge about the geological model and drive mechanism of the gas reservoir, especially when hydrocarbon production contains significant residual water which is driven up the well with the hydrocarbons. Replacement...

There is a growing interest in the world in coal as critical raw materials. Coal also can be a carrier of many valuable components. An important geological and geochemical task is to find out the conditions for their accumulation in the coal. The complex of trace elements including group of rare earth elements (REEs) has been studied in the coal seams of the Volga-Ural region (Russia). The article is considered the main regularities and reasons of the concentration of trace elements in coal seams. In the Volga-Ura...

The key issue of Polish municipal waste management system is still too little progress in subjecting waste to recycling processes. Legislative changes implemented in this area are intended to build a rational and integrated system that meets the stringent requirements of the European Union. A set of requirements for the formal regulations generates the need for a comprehensive approach to waste flows between participants of the system. Adoption of such a course of action enables to meet the mandatory requirements ...

International Seismological Centre (ISC, Newbury, UK) annually locates about 30,000 earthquakes that may occur with macro-seismic effects (effects on people, objects, nature and buildings). Catalog of the earthquakes, observed since 1034, contains information?s about more than 650 earthquakes that have macro-seismic effects in the Slovak?s territory. The strongest earthquake was recorded 28.06.1763 with the epicenter near of Kom?rno and only in the town itself completely destroyed the seven churches and 279 houses...

An evaluation of dinas quartzites? deposits was carried out. Quartzites, quartzite sandstones and quartz sands with SiO2 content more than 96% are used are used for production of metallurgical furnaces. Objects of study were probable and proved reserves and resources of monomineralic quartzites of Vasylkivske and Tovkachivske deposits. Deposits are distinguished by mineral?s quality, significant reserves and favourable conditions for open-pit mining. Reserves were calculated by the method of geological blocks and ...

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 ...

Thermal pollution is considered to be one of the physical water pollution types that is caused by dumping of water heated by the units of industrial, thermoelectric and nuclear power stations. This type of pollution is characterised by the increase of water temperature higher than the natural level. At the places where heated water is dumped there are zones with water temperature higher than in the whole reservoir: about + 12° ? in winter and + 30° ? in summer. This fact results into the increased amount of organi...

This paper reviews a developed technology of mining steeply dipping mineral occurrences by steeply inclined sublayers, taking into account spatial position of sublayers relative to ore shoot. Parameters of phase and steeply inclined sublayers, till reaching final open pit depth, have been justified during studies. An order of steeply inclined layers formation on frontal open pit edges is determined depending on location of mineral resources on footwall and hanging wall. A new method of reactivation of a non-operat...

The aim of this paper is to provide new opportunities in geotourism development in ?tiavnica mountains area via the new evolving application for tablets and smartphones called ?Like me?created by the artist Judith Hofland. It is a location based game which leads the user especially through the non familiar trails within the city or town. The proposal is to applicate this videotour not just in urban areas but also in geotouristic localities. Thanks to this interactive videotour tourists could not just explore the s...

In paper the most important input variable revolutions (rpm) of drilling tool is analyzed by utilization of Shewhart control chart. The revolutions of drilling tools have a double meaning, in term of the performance and economics. Two measured variable namely pressure force F (N) and speed of rock drilling v (mm.s-1) closely related with revolutions. In general, control charts are used as a proven means to improve the qualitative parameters of production and in the prevention of errors, discrepancies in production...

The concept of sustainable development has an increasing influence on the implementation of innovative solutions processes. On the other hand, technologies are an important factor driving development, not only economic but also social and ecological. The aim of the article is to present the importance of the creative process during implementation of geothermal water deironing technology for sustainable development. There are many water deironing technologies available on the market. However, only a few of them are...

Climate change also increase different natural risk possibility - erosion and floods in coastal local municipalities in Latvia are becoming increasingly more important. The most significant flood risk factor, particularly in the climate change context, are wind surges, especially coinciding with ongoing sea level raise and, even, rapid and intence, rainfall, while the nation wide spread snowmelt flood risks are less impacting the coastal municipalities. Research-and-development study analyzed coastal risk governan...

Fibre formation is one of the key issues in plant biology. The walls of plant fibres consist of several layers with different structural organization, chemical composition and properties. The morphology of the secondary wall largely defines the physical and physicochemical properties of plants. In spite of the progress in knowledge and technical ability, various problems concerning fiber formation remain basically unsolved. The new data are obtained by visualization of birch Betula pubescens and spruce Picea abies...

Construction and demolition materials are generated when existing buildings are demolished. The concrete / masonry recycled aggregates can be used within trench reinstatement works. The aim of conducted experiment is to find a methodology for evaluating the effect of backfill compaction works via dynamic penetration tests (DPT). The first part of paper describes construction of testing pit located in research center AdMaS (Czech Republic). The paper continues then with the description of compaction and testing pro...

This paper describes the possibilities, process and results of the electro-optical distance meters (EDM) of the universal measuring station (UMS) testing. A substantial part of this paper is devoted to the principles and procedures for checking and testing of electro-optical distance meters according to the international technical standards STN ISO 17 123-4:2013: Error! Reference source not found.. In the paper are defined the general requirements of the standards. Also is described a simplified and complete testi...

Wood based panels are mostly used in the building industry. Using these panels in details of flat roofs is one from their advantages. Problem occurs in the case of increased humidity mainly by leakage or water vapor condensation in the construction which causes degradation of panels. That causes also changes in basic characteristics and reduces the bearing capacity. This work contains utilization of the most used wooden panels. In thesis author evaluates influence of humidity in flat roofs details on creation of m...

The aim of this study was to investigate weed flora in pepper crop on the Dukagjini plain in Kosovo. The arable weed vegetation of Kosovo has been affected by multiple environmental features and management measures on various spatial scales in the past. Weed flora in pepper crop on the Dukagjini plain was not studied in detail in the past; thus, data are insufficient and incomplete. To increase the knowledge of weed flora in pepper crop on the Dukagjini plain, we recorded the flora of 50 plots with a standard plot...

This article proposes a software tool, based on artificial intelligence technics, to grid operators and energy companies, to optimize the power system. Precisely, it uses pattern recognition capabilities of neural networks, in order to enable a higher share of renewable energy to consumers. The applied analysis on PV power and other related electrical grid data, such as smart energy meter readings, are based on pattern recognition technics. The neural networks used for this approach will identify days of the week ...

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

Previous researches have shown the possibility of using organic-mineral additive based on glyoxal for injection strengthening of soils in roadbases and engineering communications. Saponite containing material was used as mineral component in the composition. Saponite containing material is a solid phase, extracted from the circulating water suspension of the kimberlite ore dressing. Modification of the sandy soil by the tailored organic-mineral additive content increases its specific cohesion up to 50 times. It wa...

The article presents the possibility of application in civil engineering of highly ecological PET foam, manufactured from 100% recycled plastic packaging. It may find uses in construction of numerous engineering structures, such as pedestrian and cycle footbridges. Properly processed waste from post-consumer PET packaging may constitute a quality structural core for use in multilayered composite materials, commonly referred to as sandwiches. Their constructional function is to provide a distance between highly rig...

The aim of this study was experimental assessing the emission of greenhouse gasses (CO2, CH4) from decomposed coarse woody debris in northern boreal forests of Siberia, where the main forest-forming species is larch (Larix gmelinii (Rupr.) Rupr.). Logs samples were collected in northern boreal larch forests of Central Evenkia (64°N, 100°E) at different stages of decomposition and placed in gas-tight boxes. Gas samples were measured in dynamics: at the beginning of the experiment and after 3 hour, 24 hours, after 3...

Obtaining data on buildings by means of TLS (Terrestrial Laser Scanning) has recently become very popular as the time needed to take the measurements is significantly shorter than in the case of the traditional methods. The technical parameters of 3D scanners (digitizers) are becoming increasingly advanced, while the accuracy of the data collected using them allows not only to translate the geometry of a real-life object into a digital image, but also to evaluate its physical condition. This is possible due to the...

The present step brings forward a series of calculation methods for the parameters of the anchored support, their number being therefore the expression of the difficulty when describing the phenomena which occur during the interactive cooperation between the anchors and the surrounding rock. The methods used the most by European mining are the analytical methods (the Bieniawski method, the self-supporting beam method and the method of the interaction between the massive rock ? anchor ? time) and the numerical meth...

Contemporary digital cameras enable automated process of creating several photos of the same frame in different exposure (bracketing). By the post processing of the photo, editing it in tone mapping, correctly illuminated parts of individual photos are merged into a new one - High Dynamic Range (HDR) image. The differences between illumination of the parts of the object in direct sunlight and the one in deep shade result in a lack of recognizable details which creates challenges in photogrammetric interpretation. ...

In last year?s we have seen big progress in digital photogrammetry, advanced quality of the light sensors (bigger resolution, light sensitivity), optics quality, automatic and active image stabilization. These parameters are predetermining photogrammetry for monitoring of the objects. The cracks on the object point to the problems of instability construction and therefore it is important to monitor them. The paper deals with using of photometric mapping by monitoring of cracks activity with using the image process...