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The modern society is focused on the main recommendations of the TEEB - The Economics of Ecosystems and Biodiversity. One of the document directions is "Business can save biodiversity and improve the exploitation of ecosystems". The task is to strengthen those economic development strategies that are environmentally sound, socially just and profitable for business. Such measures are an integral part of the resources rational use policy in modern industrial enterprise. The object of this study was the process of pr...

The construction industry is one of the most material and energy-intensive manufacturing industries in the world, with about 50% of energy consumption and 60% of material resources. Obviously, the rational resource consumption, and as a consequence, the environmental future of humanity, to a large extent depends on the current state of this issue in the construction industry, and mainly emerging prospects for its modernization. For the construction, as the production sphere of national and global economies, findin...

The purpose of this research was to evaluate the viability of investment into a waste water treatment plant using electrochemical clean-up technique which could replace the existing waste water treatment plant operating on reverse osmosis principle. The evaluation was performed from the technological and economical point of view. First, a pilot waste water treatment plant was built within the existing facility and operation parameters were optimized. Next, the efficiency of waste water purification was assessed ba...

TodayпїЅs economy, referred to as пїЅknowledge-based economyпїЅ, relies on advances in science and education of society as a basic factor of social and economic development. The article presents the implementation of two-way cross-border co-operation in the exchange of experiences in innovative applications of production engineering using mathematical methods in various kinds of activities between technical universities and other participants. This type of activity means transfer of knowledge resulting from practi...

In recent years, the focus is more, more often put on environmental protection and energy saving, therefore, a variety of alternative materials, and alternative procedures in the field of road construction are search. One potential option is to reduce the temperature in the production, laying and compaction of asphalt mixtures that favourable affects a carbon footprint. This is achieved by the use of organic additives and waxes, chemical agents or water (foamed bitumen). Depending on the additives, it is possible ...

The effect of ambient conditions on the properties of three different types of concrete containing ground granulated blast furnace slag, silica fume, and waste brick powder as partial Portland cement replacement is studied. The samples are exposed to the external environment in a test facility located in the city of Prague. The upper horizontal surfaces of the specimens are covered so that the wind, rain, snow and sun radiation affect only the vertical surfaces, similarly as in their practical application on build...

The purpose of this paper was to study the effect of carbon content on the dimensional characteristics of some powder metallurgy (PM) materials. The powders used in this study are atomized pure iron and prealloyed iron-based powders with Cu, Ni and Mo. Some elements as copper, nickel, molybdenum, manganese and phosphorus are the most common alloying element added in powders form because of its low cost, availability and capability to improve the properties of alloys. The particle size of the analyzed powders is ra...

Abnormal numbers of specific types of leukocytes may indicate immuno-suppression or immunocompetence in response to an immunomodulator. The objective of this study is to investigate the effect of feeding broilers on diet containing flaxseed on splenocyte Tand B- cells. Upon hatching, all chicks were given the same basal diet for 13 d. Dietary supplementation of flaxseed started at 14 d of ages until the end of the cycle at 35 d of age. At slaughter, samples of spleen were collected. Spleen cells were harvested in ...

One of the important factors affecting nutrient uptake by the root system of the plants includes soil reaction. Increased soil acidity may adversely affect the use of biogenic nutrients, such as phosphorus, potassium, calcium, magnesium, sulphur and molybdenum. In soil, nutrients are immobilized to insoluble forms. Although their amount in soil may be sufficient, the plants cannot obtain the optimal quantities, causing a decrease in the yield or production quality. On the other hand, in the metabolism of plants, a...

Novel trends in the market of fermented dairy products are leading to obtain various products with high functional and nutritive but less energy value. The development of new fermented dairy products could be divided into two groups in order to: 1. obtain products with improved physicochemical characteristics, rheology, texture, microstructure and sensory properties; 2. obtain products with pronounced nutritive characteristics and functionality. Yogurt is a very popular dairy product in most countries, it is consi...

Pesticides alter the biological properties of the soil, leading to a complete loss of their fertility. Chestnut soils (meadow brown, light brown) are resistant to contamination by pesticides and by fertilizers in particular. We have carried out studies on the effect of the examined soil pollution with high doses of fertilizers and pesticides on the soil mesofauna representatives. The work is based on studying influence of anthropogenic impacts on soil biological activity in comparison with its main indicators, whi...

A mechanism of core blocking that is drilled out during the coring from deep wells in the direct and indirect flushing with drilling mud is examined. Using methods of technical mechanics and hydromechanics, a formula for flow rate excluding a core blocking is obtained during the backwashing. The value of necessary flow rate depends on not only a direction and intensity of fracturing of rocks, geometrical and density parameters of core pieces, but also on structural strength of drilling mud. A mechanism of core sel...

Substrate, organic matter content, land use and cover may strongly affect soil properties having effect on soil water regulation services in ecosystems. Soil water holding capacity is function of specific physical, chemical, and biological soil parameters. The aim of this research was to understand the risks posed to soils and their water-holding capacities, in the face of changes in land use, land management and vegetation cover. This study was conducted in 2015, at two study sites, Tajov (TA on Haplic Cambisol) ...

Up to 50% of arable land is threatened by water erosion in the Czech Republic. Annually, water erosion causes billions of dollars of damage. It is especially reflected in the reduction in value of agricultural land and yield of the erosion damaged soil. In erosion affected areas, the soil is washed off and depleted of the finest particles binding nutrients and contributing to the formation of humus. In our study, we include five effects of water erosion on the content and quality of humus in chernozem, in topsoil,...

Assessment of economic efficiency of transport infrastructure projects also includes impact of these projects on the environment. This paper focuses on the effects of exogenous costs associated with removing/reducing negative externalities such as traffic noise or exhaust fumes from cars. These effects are evaluated by using Cost Benefit Analysis according to their influence on the beneficiaries. The presented analysis has been performed on the sample of 47 Czech large-scale transport infrastructure projects proce...

The influence of seven years of using the direct seeding technology on the eco-biological properties of black soils in the Rostov region has been comparatively studied. These soils are found in vast areas of the South of Russia, and are the most productive arable soils. Seasonal comprehensive studies have shown that, if compared to the traditional ways of tillage, direct seeding results in changes in the soils' physical and biological properties. The studied parameters of soils considerably depend on the cultivate...

Heavily loaded production lines for metal surface treatment gradually lose reliability and are subject to both physical and moral ageing. For this reason their replacement by a more advanced equipment is necessary and it is the most effective action. In addition to the production process efficiency improvement, this action provides also better parameters as to the environmental protection. The modernization undertaken also meets the requirements for BAT techniques. The paper handles also potential effect of the pr...

The objective of the study was to evaluate the effect of processing parameters such as pressing and sintering time on microstructural characteristics including porosity and microstructure of some iron-based powder metallurgy (PM) materials. The powders used in this study are prealloyed iron-based powders. The particle size of the powders is ranging from 45 to 150 ?m. Following mixing the powders with zinc stearate 1% for 30 minutes, the studied powders were single pressed in a die at a pressure of 600 MPa. Zn-stea...

Heavy and radioactive metal poisoning has become a problem of current interest as a result of environmental pollution on a global scale. Studies to test the noxious effect of radioactive metal ions on wheat germination and seedling growth showed that germination rate, shoot length, and fresh weights varied as a function of their concentration in the treatment solutions. We report here the effect of some radioactive and non-radioactive (stable) elements on the wheat seeds and seedlings (Triticum aestivum L.) in the...

Excessive recreational load are altering the composition of plant communities, leading to loss of some native species and replacement their on invasive weed species. Tourism has a particularly strong impact on landscape and biological diversity of mountain territories, in particular Trans-Ili Alatau, which is experiencing increasing anthropogenic pressure on natural ecosystems, because it is located near the largest metropolis of Kazakhstan city Almaty. We have carried out studies on the effect of the recreational...

This paper presents the dependence between particles of various sizes present in the sediments collected from the Klusov (Slovakia) water reservoir, such as sand, silt and clay and their nutrient content. The results of physical characteristics of sediments indicate that the clay/silt fraction dominated in the reservoir sediments. Chemical analysis showed that the total nitrogen content in sediments was recorded from 0.07 % in sediment collected at the inlet to the reservoir to 0.26 % in sediment taken near to the...

Temperature is a primary factor affecting the rate of plant development. Extreme temperature events have become more intense, more frequent, and longer in recent years. Extremely high and low temperatures may have a detrimental impact on the productivity of trees in critical phases of their development. The work presents the results of phenological observations of two broadleaved tree species: European hazel (Corylus avellana L.) and sessile oak (Quercus petraea Matt.) with the main emphasis on the impact of the t...

This paper deals with the possibilities of concentration of electromagnetic radiation through Fresnel lenses. The article points out errors in the optical system and their possible solutions, which are based on the latest scientific knowledge. At present, there is a development of Concentrator photovoltaics (CPV) and high-concentration photovoltaics (HCPV) systems that make the possibility of more efficient transformation of solar energy into electrical energy. Manufacturing of photovoltaic cells differs in the co...

During combustion of natural fuels together with oxides of main fuel elements (carbon and hydrogen) fly ash with unburnt fuel particles, sulfur oxides, nitrogen oxides, some amount of fluorine-containing compounds and gaseous products of incomplete combustion of fuel are released into the atmosphere. The technology and technological parameters of equipment for purification of exhaust gases of TPP, which allows to remove up to 95% of sulfur and carbon oxides by low-temperature liquid-phase catalytic oxidation at at...

In the paper modern tendencies in the WorldпїЅs industrial mining sector development are overviewed, which manifest themselves in management streamlining of the sectorпїЅs economic, technological, and informational processes. Emergence and advancement of scientific-and-applied research directions, aimed at these processes systemic scrutinizing and appropriate rearrangement, are traced from the first third of the XX century, when the so-called Economics of Exhaustible Resources abstract research branch has been ini...

The process of Underground Coal Gasification involves risks of uncontrolled/unpredictable course of the gasification process. To minimize the risks of contaminants leaking outside the georeactor zone in the event of emergency is of a significant importance when aiming to maintain safe course of the process. The article presents methods and measures aimed at reducing the risk. These methods are based on reduction of the impact of released gaseous contaminants generated during the process. In order to achieve it, a ...

Air injection techniques (high pressure air injection and in-situ combustion) for enhanced oil recovery (EOR) have attracted extensive attention due to its low cost. Air injection can be applied in many candidate reservoirs including carbonate reservoirs that account for a great proportion of total oil reserves all over the world. Dolomite and calcite are the main minerals of carbonate reservoirs. Therefore, it is necessary to study their effect on the oxidation of crude oil as the oxidation reaction exactly occur...

The reactive oxygen species are usually generated by normal cellular activities of the aerobic metabolism and play the role of a signal molecule and beneficial growth regulator. When plants are exposed to stress conditions the concentration of reactive oxygen species increases. Therefore, to neutralize these free radicals and to protect cells from oxidative damage enzymatic and non-enzymatic antioxidant systems are activated. In this paper it was investigated the effect of drought on the activities of antioxidant ...

The main objectives of the present study were: (1) to evaluate the impact of acid drainage, from the former Valea Vinului mine on the quality of Valea B?ilor creek and (2) to propose a treating method for the acid mine waters generated by the investigated mine. The waste waters sampled from the former Valea Vinului mine proved to be highly acidic having a pH between 3.1 and 5.2. The monthly fluctuation showed that during March 2016 and April 2016/2017 the waste waters were highly acidic. The acidic mine waters had...

Grape seed flour (GSF) is a viable ingredient used in bread-making to improve its nutritional value. Wheat flour bread is the most consumed bread, mainly produced from white flour which has a reduced nutritional value. In this study GSF from white wine pomace, at different particle sizes was used in wheat flour type 550 at levels from 3% to 9%. This type of wheat flour was of a strong one for bread making with a low deformation index which presented a low alpha amylase activity due to its falling number index valu...

Alumina and silica are commonly used as solid matrix for characterizing the combustion behavior of crude oils by differential scanning calorimetry (DSC) technique. However, the two basic factors, heating rate and total sample mass, were paid less attention in the process of experiments. Our recent study found that they might significantly change the oxidation behavior due to the use of alumina and silica as solid matrix. In this study, the effects of heating rate and sample mass on the combustion behavior of crude...

The paper presents the results from studies carried out in the farming conditions. It has been found that with the application of rational norms of mineral and organic fertilizers used for growing various crops (barley, rape, flax, soybean), soil fertility could be stabilized and their effectiveness enhanced. The content of mineral nitrogen under rape crops was at the level of the control variant. Its content in the variant using liquid manure (biofertilizer) was somewhat lower than that of in the rotted manure - ...

The effect of different doses and time of boron fertilization on growth and development of grape plants were studied on the soils of Terek-Kumskiy sands of Chechen Republic, Russian Federation. The aim of research is to study the content of boron in the soil and to identify the physiological response of the vine plants on boron fertilizer. The obtained data of the boron total content in the studied sandy soil showed that in 0-60 cm layer of the soil the boron total content ranges from 0.4 to 0.5 mg/kg, in 60-150 c...

Dust is one of the major hazards that affect workers in the mining industry. Currently, there are many technologies that help reduce the dust load on the miners. But looking at the statistics of professional and profession-related diseases, it can be seen that the incidence of diseases caused by various industrial aerosols is not reduced. This indicates that the existing methods are not sufficiently effective. It is not excluded that the very method of estimating the dust load on workers is not correct and needs t...

One of the key parameters of the mine, which affects the choice of the scheme for stripping and transporting ore, is its annual productive capacity. At the same time, the analysis of the experience of domestic mining enterprises using the underground mining methods allows us to say that the traditional and most common transportation methods are skip hoisting and road transport using underground dump trucks [1]. Along with traditional ones, there are progressive energy-efficient and poorly-staffed types of transpor...

The papers presents the realization of Project Gorona el Viento and its operation on the smallest of Canary Islands. El Hierro was recognized as UNESCO biosphere reserve. Therefore the new model of energy supply, based exclusively on renewable energy sources, seemed to be reasonable. Earlier power was obtained from diesel transported from the mainland. The hybrid solution, system including the wind farm, water pumped power plant and a set of pumps has been adopted. Power obtained of the wind turbines supplies hous...

The purpose of the study was to develop an electrochemical method for detection of lead at low level of contamination in water samples using a carbon glassy electrode modified with the functionalized azulene: (2E)-2-(azulen-1-ylmethylidene) hydrazine carbothioamide (L) as a complexing polymer film. The modified electrodes were prepared in L solutions (1mM) in acetonitrile (CH3CN) containing tetra n-butyl ammonium perchlorate (0.1 M TBAP) as supporting electrolyte. The analyses were performed on Autolab PGSTAT 12 P...

In the present scientific work assessed current status of question about grinding stage effect to electrochemistry parameters of operation preparation slurry before intermediate selective flotation. Showed needs of more detail study chemical reactions in the slurry preparation and flotation processes.At example of Abiz deposit ores has been offer new methodology. The ores are polymetallic sulphide type and the one are most difficult for mineral processing. The methodology allows increase information base during fl...

This article is about a new data acquisition system and procedure used for electromagnetic pollution assessment and warning, with mobile equipment, placed inside some electric high voltage power stations in the Central Region of Romania, as well as the software involved and interpretation of results. The whole system and procedures, as well as all the measurements were performed by our team from the Politehnica University in Timisoara. The acquisition system and the software involved are developed by our team. Mai...

Ensuring the stability of liquid rate represents a major requirement imposed for sprinkling machinery. This important objective can be materialized only by equipping sprayers with advanced automatic adjustment systems, in order to correlate the two work parameters: displacement velocity and liquid flow. An effective correlation of these parameters can be achieved using adjustment systems of the electronic type. A such adjustment system can not operate efficiently without an adequate comparator circuit. It is also ...

Natural compounds and products are increasingly demanded by the pharmaceutical and cosmetics industries as safer and user friendly alternatives to synthetic variants. Young wheat plantlets, known as wheatgrass, are a valuable source of minerals, vitamins and chlorophyll pigments and the biosynthesis of such compounds may be influenced by the cultivation conditions. The present study focuses onto the chemical profile, mineral and chlorophyll content of cultivated wheatgrass using two different types of water (sprin...

The research is devoted to the investigation of meadowsweet (Filipendula ulmaria (L.) Maxim., Rosaceae line), which is widely used by population for medical purposes. The results are represented by the concentrations of 28 chemical elements determined by INAA method and 55 ones determined by ICP-MS in 201 samples of the aboveground part of the plants collected in different regions of the south of Siberia. The analysis of the data obtained allowed concluding that the chemical elements varied depending on the region...

The shape of historical ponds dams is important from different points of view such as stability or seepage through the dam body. These are also strongly depending on the internal state of the earth body as the dams are usually built of earth but the shape can help to identify possible problems. The technical documentation of these buildings which could be used to describe the shape is usually missing and the shape can be also modified during the long existence of ponds which can exist already for centuries. There ...

The digital transformation of actual economy is changing business models, demanding different skills including innovation and entrepreneurship, digital competences, and learning to learn, needed for enabling competitiveness. Within this sphere, the modernization of higher education institutions through embracing technological changes and new digital teaching and learning practices in the campus gains strategic relevance and acts as catalyzers for business and future job creation. The scope of the study is limited ...

Considered here is the problem of cooling water-cooled reactors in an emergency, including in emergencies involving a blackout. This problem has become particularly important after the events that occurred at the Japanese nuclear power plant, пїЅFukushima-1.пїЅ Here we present a new emergency reactor-cooling system developed at the Department of Energy Problems at the Saratov Scientific Center, Russian Academy of Sciences. We propose a new way to provide redundant, auxiliary power for nuclear power plants (NPPs) t...

The oxygen plasma-based bonding of a liver-on-a-chip platform has been optimized for immunostaining and RNA extraction during differentiation of induced pluripotent stem cells into hepatocytes on-chip. The device is a structural and fluidic mimicry of the liverпїЅs lobules, consisting of a double layer of polydimethylsiloxane (PDMS) bonded to glass. This bonding has been adjusted in terms of power, exposure time and post-exposure baking to make the device separable from its glass slide, making cells cultured insid...

The microclimate of buildings forms an integral part of everyoneпїЅs life, because each of us spends a part of the day, sometimes more, sometimes less, in the closed premises of buildings. It is a specific part of climate that has a dynamic development and mainly comprises temperature, humidity and concentration of harmful substances in the premises. And one of these is CO2. This paper follows the author's previous publications which also deal with the issue of CO2 concentration in building premises, including the...

This article is referring to a study regarding the energy consumption and data for the internal heat gains and opening hours at a big size commercial building built in Bucharest, Romania. The monitoring was done during the maintenance building period of time starting with the opening day till the present days. It was calculated the energy demand for heating, cooling, ventilation and lightning systems depending on the average daily running hours and on the internal heat gains for each type of area destination (like...

In this paper are presented some studies concerning energy conversion systems for High Altitude Pseudo-Satellites (HAPS). In the first part of the paper, a state-of-the-art in the field of energy conversion systems on board of high altitude UAVs together with the identification of future trends in electrical propulsion of aircrafts are shown. The interfacing between the fuel cells and the bus, as well as the bus voltage adjustment is made via the DC to DC converters. Simple type boost converters are lighter, but h...

The continuous improvement of building insulation and air tightness means that controlled ventilation is becoming more important every day. The ground-air heat exchanger makes a considerable contribution to this, especially when used in conjunction with an air heat exchanger unit. As well as increasing the quality of life within the building, this also provides significant energy cost reductions by using the embodied ground energy to pre-condition the incoming ventilation air. The Canadian wells use geothermal ene...