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The water pollution caused by nutrients has become a problem, especially in agricultural areas. Nitrogen (N) and phosphorus (P) can cause the eutrophication of surface waters, and problems with their use as drinking water sources. One of the possible solutions is to employ denitrifying bioreactors, which are used for the reduction of high nitrate concentrations in shallow groundwaters. Our research was focused on the enhancement of these bioreactors with steel byproducts. These materials release Fe, which causes t...

The felling of trees on small plots, using the method of varying intensity is used in areas where widespread small-leaved Linden or she prevails.. This tree species is very closely related to beekeeping and a valuable timber.. Therefore, the proposed felling allow to organize complex mixed forests. In the spatial location they will be placed is uneven with a dominance of small-leaved Linden. Thus, in the generated uneven-age, i.e. the mosaic of forest tiers, will increase the production of nectar. This occurs due ...

This work is investigation of the rheological properties of the developed additive based on polymer - sevylene with the addition of nanostructure alumina particles were studied. The regularities of the decrease in the dynamic viscosity at the temperature range from 20 to -10° In the course of the studies, a regularity was revealed, showing that for oil at a shear rate of 0.028 to 1.4 s-1, a sharp decrease in viscosity from 1800 to 336 mPa?s is observed. For oil with an additive, the viscosity decreased from 1200 t...

Lately, there has been a special interest in scientific research in viticulture and winemaking regarding the content of different chemical compounds. These have been shown to have a positive impact on consumer health. Preliminary research highlights the benefits of red grapes on health through its antioxidant, antiseptic, anti-inflammatory properties. The study was carried out on the Muscat of Hamburg variety during 2017 in two wine-growing areas: the Research and Development Institute for Viticulture and Wine Pro...

Dielectric barrier discharge is low-temperature plasma generated in cases with an dielectric material between the electrodes. The demanding applied task of water treatment is the removal of heavy metal ions, including iron (Fe) and nickel (Ni), ions, from aqueous solutions. The authors of the paper designed a plasma reactor that allows the dielectric-barrier discharge treatment of a solution near the surface of the liquid in the flow-through mode, so that this method can be used for technological purposes. The inf...

This paper is an analysis of 521 students who were successful applicants for the dual/cooperative study program Production Technology and Organisation (PTO) at the University of Applied Sciences FH Joanneum in Graz/Austria. Due to the Bologna Process, the program had to change its organisational structure from an 8-semester diploma program to 6-semester Bachelor + 4-semester Master program. There were 289 successful applicants for the diploma program and until write the year here 232 for the PTO bachelor. FH Joann...

The implementation of the Energy Efficiency Operational Indicator (EEOI) by the International Maritime Organization (IMO) is a consequence of the need to specify quantified ships? energy efficiency of the vessels in service. The EEOI enables to monitor the efficiency of the ships in operation in a specific period of time based on an actual operation data. In reference to vessels other than ships which are designed for transporting passengers and / or goods (for which the EEOI has been developed), the application o...

The increasing anthropogenic load has a large impact on the ecological state of the steppe landscape. In particular, the emissions from the automobile transport: heavy metals, oil products and complex organic substances inevitably pollute the territories along the roads. The presence of forest belts in the roadside landscape reduces the negative impact of the traffic flow. The assessment of the consequences of the anthropogenic impact presupposes studying the changes in the physical and chemical properties of the ...

In this paper a theoretical and experimental study is performed, regarding the optimal seeds separation solution, by size and shape, in the air stream, given by a centrifugal fan, on the sieves of an experimental stand. The stand is also equipped with two blocks, each with two sieves whose slopes have been adjusted to four values. The determinations were made on winter wheat (Triticum Vulgare), winter barley (Hordeum Vulgare) and millet (Panicum Miliaceum), for several values of the inlet flow. Experiments were ma...

One of the most important sources of potable water throughout the world is the ground water, which is currently under stress due to human activities and consumption. Therefore, the presence and transport of contaminants in the groundwater represents an important threat to the human health and the environment. Many studies dealing with the groundwater quality and its sustainable use are found in the literature. Latest research shows a great opportunity of removing groundwater contaminants by using clay. Thus, an ex...

The quality of fuel atomization in diesel engine, commonly represented by the mean drop size, is critical for fuel-air mixture, and for the rate of fuel evaporation and combustion. Poor quality fuel-air mixtures are a source of harmful exhaust gas components, such as nitrogen oxides and particulates. In spite of advanced technologies, mentioned components still are not eliminated from combustion products. The article presents the results of the impact of fuel pump delivery rate and fuel viscosity on the course of ...

Paper focused on extension of usage of the AutoID model of transport system in laboratory. Transport model is equipped by complex AutoID system based on RFID and magnetic sensors. They are used to gather information from transport processes. The aim of solution presented in paper is to describe data flows in this physical model and to design representation of data flows and processing in simulation system Witness. This kind of model can better present behavior of data background to students and make them better un...

One of the fields where the principles of intelligent systems are significantly reflected is logistics. Smart intelligent features are used across different disciplines, and their technological development influences progress in the industry. [1] One of the fields, where the principles of smart systems are nowadays implemented, is logistics. Autonomous smart elements communicate with each other using the Internet of Things and provide more effective support and communication for their digital twin (cyber-physical ...

Fuel and energy management and related energy security are key issues for every country. The selection of energy sources used by individual countries depends on the possessed resources of energy raw materials, the economic position and, to an increasing extent, the approach to environmental protection. These factors shape the so-called energy policy of a given country. In the case of Poland, this policy is based on conventional energy sources. The main energy resource of the country is hard coal, the extraction of...

The article considers a formal and functional description of international timber transportation logistical system as a distributing system. The formal representation of the international timber transportation process requires the consideration of a big number of factors affecting transportation. In addition, the transportation process takes place on the territory of several states and depends on the transport network significantly. In this regard, the use of the system analysis method will be most effective. A se...

The purpose of this expertise is to evaluate by mathematical modeling the stability of the slag and ash deposit Compartment II Emergency Cicani, which will be carried out on the past site of the Cicani Mid-East compartment by elevation with a height of 3,0-3,5 m, up to + 178mdMN. The deposit will be made using the "thick slurry" technology, having as foundation the deposition of slag and ash existing in the Cicani Middle + East (existing) compartment, made by the hydraulic transport technology. The basses of the e...

The subject of contribution is solution a review of the presented territory, where is located geothermal borehole GTH-1, to evaluate the properties of the well and calculate the potential energy of the well. After finding the heat energy potential, contribution will focus on the design of appropriate use and potential solutions to the problems associated with it. A part of contribution is to assess the current situation in the use of geothermal energy as a whole in the Slovak Republic in comparison with other coun...

Nosocomial infections have an important place in human pathology, becoming a major public health problem due to the high frequency of multiresistant strains, with afferent consequences. In the Intensive Care Units (ICU), nosocomial infections represent a constant risk due to a cumulus of factors that increase susceptibility to infections, respectively: decreased immunity due to underlying pathology, patient exposure to a series of invasive manoeuvres, poor nutritional status etc. The purpose of this study was to e...

Air transport is presented as the one of the major sectors contributing to global warming. According international reports air transport share of CO2 emissions is 2%. Overall impact to global warming is around 3%. While there is still insufficient scientific research into the impact of air transport on cloud formation from contrials, the impact of aviation on the climate caused by aviation emissions is already well-mapped. Noise pollution in airports is another significant problem. Companies try to limit noise by ...

Soil and its quality are the key factor that determines opportunities for agricultural production in a particular territory. However, through lasting land management practices, soil structure can be significantly modified. In the context of climate change, soils can contribute to increased greenhouse gas emissions; for this reason, the techniques that contribute to sustainable land management have to be used in agricultural production. In many Central European countries, organic soils have been extensively used an...

The paper is devoted to construction of the time efficient algorithm for solving the structural inverse gravimetry problem. The problem is in finding by known gravitational data multiple interfaces between layers with different constant densities. This problem is described by a nonlinear integral equation of the first kind; so, it is ill-posed. After discretization of the area and approximation of the integral operator, the problem is reduced to solving a system of nonlinear equations. An efficient method was cons...

The article presents the results of investigations into the effectiveness of precipitating rare earth elements (REEs) from mine waters using solutions of alkalinizing reagents (NaOH, Ca(OH)2, Na2CO3), sulphur-containing compounds (sodium trithiocarbonate, sodium trimercapto-s-triazine, sodium dimethyldithiocarbamate) and oxalic acid. The investigations were conducted in two stages. In the first stage, based on initial tests, after REEs precipitation, a compound selected from the alkalinizing reagents group (NaOH) ...

Fishing opportunities of Latvia are based on the long-term research of environment and fish resources at national and international level. Environmental pollution, unfavourable spawning conditions as well as intensive fishing and other factors have negative influence upon the state of the fish stocks. As a result of stock fluctuation and changes in fishing quotas allocated annually at the EU level, Latvian fishery companies have difficulties to plan their future activities; consequently, increasing attention is be...

The paper focuses on the results of the research study of the must and wine of the Georgian, aboriginal, rare variety of grapevine called "Khikhvi". The naturally and artificially (IR) fermented chacha was used in the experiment. The objective of artificial fermentation was to shorten the prolonged fermentation time of the freshly pressed chacha. This excludes the activation of acetic acid bacteria in the chacha under the influence of air oxygen. A rapid redox occurs in the liquid in short period by infrared irrad...

One of the most significant goals of the educational system has become the aim of shaping of a personality with a high level of ecological culture with the aim to constant self-development, the progress of society and the priority of universal values, capable of perceiving and realizing the ideas of co-evolution and providing due to their activities a stable development of humanity in future. The success of its solution depends on multitude of factors, among which the time of en culturation of agrowing person to e...

The Chapel of St. Kinga is the world?s largest underground temple and one of the biggest attractions of ?Wieliczka? Salt Mine in Poland. The chapel is located about 101 meters underground. The floor is sculpted in a single salt block and impressive chandeliers of salt crystals are made. In the analyzed part of the mine, in chapel?s surroundings, there are almost exclusively dry exploitation excavations, where mining works had been conducted from the 17th to the 20th century. Observations of rock mass movements and...

This paper presents the results of the study of Kraft lignin hydrogenolysis process, using 5%Pd/C. The catalyst was investigated using the following physico-chemical methods: X-ray photoelectron spectroscopy, infrared spectroscopy of diffuse reflection of the adsorption of CO (DRIEFT), transmission electron microscopy, thermal gravimetric analysis, differential scanning calorimetry, the low-temperature nitrogen adsorption. Among the products obtained during hydrogenolysis of lignin the most promising for fuels are...

In research are used objective and subjective sound features on the development of noise annoyance assessment model in urbanized environment. They represent a quantitative and qualitative evaluation of the acoustic signal. The relation of objective features in subjective features is the direction of research on the development of noise annoyance evaluation model developed for several years. The carrier of information about the characteristics of sound in the environment is an acoustic signal coming from noise sour...

The aim of this study was to investigate the influence of anthropogenic activities on the level of toxicity of river sediments near agricultural areas under cultivation. The evaluation of the acute toxicity of samples was carried out by contact test on earthworms of the genus Eisenia foetida. Neurotoxic potentiality of organophosphate pesticides present in the samples was assessed by measuring the inhibition of the enzyme acetylcholinesterase (AChE). Sampling was from 9 watercourses in the north Moravian and the n...

The article traces the technique of visualization of educational information in various graphic ways. The following methods are best-known by students: the fundamental, traditional cartographic of research and teaching. They learn such methods from the course of the school geography and it is associated with the techniques and knowledge of spatially distributed information on maps and other geoimages. In addition to spatially distributed, there is other information that can be shown graphically. The modern term "i...

The mining sector is currently undergoing a transformation. The reforms result from the difficult economic situation in mining companies, which is a consequence of the low price of natural gas, substantial coal supplies in ports and power plants storage sites as well as the growing energy production from renewable sources. Unfortunately, a drop in prices does not cause a decrease in the cost of raw material production. Such a situation causes that Polish coal is not competitive on international markets. The ongoin...

The rainwater harvesting systems is a technique which that have been used for many years, with outstanding results that has been used since antiquity. However, it is still not used around the world. Drinking water is an essential element for humanity. However, millions of people do not have access to drinkable water all over the world. Poor countries do not benefit from drinking water even if efforts have been made by governments in developed countries. Poor countries cannot afford modern water treatment and water...

The article presents the results of aircraft positioning using the PPP method in air navigation. The PPP method is known as one of the new GNSS measurement techniques in use in aviation for precise aircraft positioning. In the article the position of the Cessna 172 aircraft was retrieved during an in-flight test conducted around the EPDE military airport in D?blin, Poland. The position of the Cessna 172 was determined and expressed in the BLh geodesic coordinates. The computations were performed in the gLAB v.4.1....

In the case of the close location of various engineering structures to the place of drilling and blasting operations for ensuring the preservation of these structures there is a necessity of the accurate forecast of the level of possible seismic effects. The amplitude of seismic vibrations is influenced by many factors that are not considered in the regulatory method of determining seismically safe distances. Therefore, the only reliable approach to an accurate prediction is the direct instrumental measurements. T...

Presented in the article common forms of so called underspace (space under bridges, viaducts or flyovers) revival show that there are organizational and design solutions, thanks to which these kind of areas can be transformed to some extent in order to improve not only their functional program or esthetics, but also their specific and disadvantageous environmental conditions. In the article there are presented results of research concerning available and practically applied solutions within architectural and plann...

The cupola furnace is a most widely used foundry furnace for melting of cast iron. Besides main product, cast iron, also secondary products are formed in cupola furnace. They have a character of secondary raw materials, or industrial wastes. Under the laws applicable to waste management, the waste producer is obliged to ensure their disposal without negative environmental impacts. Typical, and main secondary product of cast iron production is a cupola furnace slag. Its occurrence is approximately from 40 to 80 kg ...

The molecular characterization of Genetic diversity of ten bread wheat (Triticum aestivum L.) varieties was evaluated at the DNA level using 6 agronomic characters and 16 wheat microsatellites molecular markers (Simple Sequence Repeat-SSR). SSR bands were scored across all genotypes, for presence (1) or absence (0) and transformed into 0/1 binary matrix. A pair-wise similarity matrix was generated with the software NTSYS. The Polymorphism Information Content (PIC) ranged from 0.23 to 0.70 respectively for the prim...

This article is devoted to the study of the disastrous influence of oil and petroleum refinery products on the environment. The chemical composition of oil as well as its influence on soil are considered in the following paper. The effects of oil spill depend on the variety of factors including, the oil types and quantity of oil spills and their impact on the environment. Analysis of both the factors determining the harmful effect of petroleum products on the environment and the processes of decomposition of petro...

The Sayak ore district is located in the north-eastern part of the Balkhash region and contains industrial molybdenum-copper and gold mineralization, which is represented mainly by skarn deposits, as well as smaller deposits and ore occurrences of hydrothermal-vein, porphyry and karst types. They are located mainly in the eastern part of the Sayak graben-syncline, which is composed of volcanic-sedimentary rocks of the Middle and Upper Paleozoic age. The Upper Paleozoic complex is accompanied by granitoid intrusion...

Assessment of changes in hydrogeological conditions of groundwater deposits under climatic effect and human impact requires in-depth study. It especially concerns groundwater deposits of drinking quality. Providing drinking water to the population of large cities and most of the medium-size and small populated areas of Kazakhstan is based on these changes. The UN carries out special control and analysis of the state of drinking water supply to people around the world, which, unfortunately, testifies to the catastr...

The article presents research on the capacity of Polish mining enterprises to introduce organizational changes. The main difficulties, which are problems arising in the introduction of changes in enterprises are primarily generated by the human factor. Moreover, the efficiency of the organization during the process of change depends largely on the productivity of employees. Therefore, our change management research focuses to the greatest extent on the situation of people in the organization. The authors carried o...

In the second half of the twentieth century and in the beginning of the twenty first century finding the ways of regulating of economic development and preserving the natural environment remains the most urgent task of the world scientific community. The issues of coordination of further socio-economic development and environmental protection remain an important problem in many regions, especially in territories with environmental restrictions because of the exceptional value of the natural complexes of Lake Baika...

Pongamia Pinnata oil has been considered as one of potential sources for commercial production of biodiesel in Pakistan. Undiluted Pongamia biodiesel has been tested in direct injection diesel engine at rated speed over the range of load. Test results have been compared with those of regular diesel fuel. With neat biodiesel brake fuel conversion efficiency has been slightly decreased and brake specific fuel consumption increased. Emissions of carbon monoxide and unburned hydrocarbons have been essentially unchange...

The paper deals with the need to improve techniques and methods of valuation acceptable impacts on the ecosystem of the lake. Baikal. A study is made of the negative influence of discharges of harmful (polluting) substances on the unique ecological system of Lake Baikal. The scientific substantiation has been developed for the normative of maximum permissible impacts on the lake?s ecological system and the methods of determining them. On the basis of a statistical processing of hydrobiological and hydrochemical da...

In mayonnaise formulation various types of oil (sunflower, rice and olive oil) were preliminary used. In the production of low fat mayonnaise, the most sensorially acceptable oils were used. Low fat (LF) mayonnaise was produced at different levels of oil with different types (xanthan gum, XG; agar, A; and a combination of XG and A, 1:1) and levels (0.00, 0.20, 0.40, 0.60, 0.80 and 1.00%) of hydrocolloid gums. All samples were compared to traditional full fat (FF) mayonnaise. The most sensorially acceptable oils we...

The purpose of this paper is to present an analysis for Romania?s energetic strategy designed for 2016-2030 according to the EU direction. Energetic security for a country is the most important after the IT sector, and also the knowledge to administrate key energetic resources. Import/ export of energetic resources is the question of how Romania will decide to develop or not its natural resources. The methodology will be a SWOT analysis, a personal point of view about the strategy. The environmental impact also is...

This paper presents a comparative study based on numerical and experimental results, regarding the single lap joints (SLJs) between pultruded glass fibre reinforced polymer (GFRP) composite elements that are bonded with epoxy adhesives. The main aspects that were investigated by experimental and numerical approaches consisted in the characteristics of the failure mechanisms and the strain distribution along the bond length at different loading stages. For the experimental program 25 specimens were prepared by vary...

This paper refers on the result of an experimental work developed in a quarrying site aimed to test the reliability of geostatistical approach as an alternative tool in the assessment of spatial variability of professional hazards. The case study is referred to the exposure of workers to airborne dust generated from typical quarrying activities. In such a risk assessment procedure in fact, the most useful alternative method to personal sampling is represented by defining the space-time variability of the physical ...

Building Information Modeling, in the broader concept of Building Information Management, is becoming a potentially important technology for maintaining and unlocking knowledge, as well as for promoting collaboration between participants in both investment and communication processes throughout the building's life cycle. Building Information Modeling can never really be just technology, software, or 3D object modeling. It requires knowledge and understanding of a number of abstract modeling concepts. Additionally,...

This article reveals the ecological and economic effectiveness of improvement of organization of enterprise. Each component of ecological and economic effect is represented taking time into account. The problems and current state of economic evaluation of natural and social enterprise capital are considered. The criteria of ecological and economic evaluation of enterprise activity are revealed considering the synergetic aspect. Generalized scheme of development of ecologically oriented enterprises is illustrated. ...