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The composition and properties of drinking water supply systems Ukraine must meet STATE STANDARDS 2.2.4-171-10 "Hygienic requirements for drinking water intended for human consumption". According to them, the concentration of iron for drinking water should not exceed 0,2 mg/dm3. Increased concentrations of iron dramatically reduce its consumer qualities. Water gets an unpleasant taste, yellow-brown color and becomes unusable for use, it is a reason of the rejection in the textile, food, paper and cosmetic industry...

One of the possible innovative ways how to process and utilize waste is its pyrolysis in the pyrolysis unit Pyromatic 250. The tests were conducted by Ostravsk? LTS, a.s. in laboratory conditions in the ENET Center of V?B-TU Ostrava. The input material was provided by MEVAPACK, s.r.o. Pyrolysis is a thermal decomposition of organic substances without access of oxygen. This decomposition produces three fractions ? liquid fraction, gaseous fraction and a solid residue. These can be used for heating of the pyrolysis ...

Qanats (or karez) are ancient, sub-horizontal, underground water tunnels that have served over centuries as main water-supply systems in arid and semi-arid regions, in particular the Middle East and North Africa. In today?s fragile contexts, water scarcity plays an important role in these regions. Quantitative hydrogeological analyses, such as groundwater maps, are needed for water management plans and sustainable development. As part of a knowledge exchange program and with the participation of young Afghan refug...

The process of generation of geometric documentation is an important tasks in the field of conservation and management of cultural heritage objects. The 3D documentation is commonly used in conservation, restoration and analysis of historical objects and sites. The recent development of low-cost photography such as mobile phones, digital compact cameras or action cameras are now becoming dependable sources of data, which allow to create reliable and accurate documentation for different types of cultural heritage o...

The aim of this study was to analyze the bread quality prepared from a wheat flour of a 1250 type in which four levels of magnesium ions (0, 100, 150 and 200 mg/100g) from lactate salt were incorporated. In order to determine the bread quality the physical, crumb microstructure, textural, colour and sensory characteristics were analyzed. Bread quality characteristics loaf volume, porosity and elasticity slightly increase with the increase level of magnesium ions addition compared to the control sample. The best br...

The aim of this study was to analyze the bread quality prepared from a wheat flour of a 1250 type in which four levels of magnesium ions (0, 100, 150 and 200 mg/100g) from lactate salt were incorporated. In order to determine the bread quality the physical, crumb microstructure, textural, colour and sensory characteristics were analyzed. Bread quality characteristics loaf volume, porosity and elasticity slightly increase with the increase level of magnesium ions addition compared to the control sample. The best br...

Biotechnology represents unique applications of science that can be used to the development of crops with improved nutritional quality, resistance to pests and diseases and reduced cost of production. Agricultural biotechnology can help solve the global food crisis and make a positive impact on world hunger. Crops improved through biotechnology are producing higher yields and of quality. In this study, 10 DH lines derived from Triticum x Zea crosses and mutagenesis between two modern winter wheat genotypes (Izvor ...

Biotechnology represents unique applications of science that can be used to the development of crops with improved nutritional quality, resistance to pests and diseases and reduced cost of production. Agricultural biotechnology can help solve the global food crisis and make a positive impact on world hunger. Crops improved through biotechnology are producing higher yields and of quality. In this study, 10 DH lines derived from Triticum x Zea crosses and mutagenesis between two modern winter wheat genotypes (Izvor ...

Worldwide, bananas are commonly consumed. Due to this fact large amounts of banana peels waste are generated. Banana peels contain adequate amounts if starch. The aim of this study was to evaluate the quality of vinegar obtained from banana peels in comparison with other types of commercial vinegar. Color, total dry extract, total titratable acidity, specific gravity, total soluble solids, antioxidant capacity and polyphenols content were determined on different types of vinegar. The analyzed samples were three ty...

Worldwide, bananas are commonly consumed. Due to this fact large amounts of banana peels waste are generated. Banana peels contain adequate amounts if starch. The aim of this study was to evaluate the quality of vinegar obtained from banana peels in comparison with other types of commercial vinegar. Color, total dry extract, total titratable acidity, specific gravity, total soluble solids, antioxidant capacity and polyphenols content were determined on different types of vinegar. The analyzed samples were three ty...

In slaughterhouses are produced a huge amount of by-product by their pig slaughtering and processing activities. These by-products are internal organs (for example: liver, heart, lungs, kidney and intestines), and another by-products like separated bones, hair, semi-finnished and finnished meat products which do not used for human consumptation. In slaughterhauses the most common occuring problems the treatment, storing of by-products is not under hygenic condition. The main problem the cooling chain is interrupte...

The development of a model for estimating and predicting the dynamics of plankton in a lake-type reservoir, depending on the meteorological and hydrophysical parameters, is carried out in the Nizhny Novgorod State University of Architecture and Civil Engineering in 2014-2018. Model for quantitative description of biomass production depending on solar radiation and temperature was developed. The influence of water stratification on algae blooming was investigated on the basis of systematic procedures for the quanti...

The article presents the second part of the results of asymmetrical disc tools laboratory tests. The first part of this study was presented at SGEM International Conference in 2017. Asymmetrical disc mining tools can be used for mechanical mining of hard rocks, as an alternative to blasting methods. The study was conducted on a dedicated laboratory stand, with an installed drive power of 80 kW. Stand consists of rotating rock sample, mined by special plate equipped with asymmetrical disc tools by a so-called under...

University Politehnica of Bucharest is one of the oldest technical Universities in Romania. Its beginnings date back to 1818 when the first technical school was founded by Gheorghe Lazar. During time the University had several premises spread across the city and later on, across the country as subsidiaries. Nowadays, the University lays on several places in Bucharest with several types of engineering faculties. On the main establishment there can be found two types of buildings: most of them where built several de...

The equivalent equilibrium volumetric activity of radon in dwelling houses, located in permafrost regions, equipped with the heating boilers operating on natural gas and located inside the residential sector of houses are investigated. Allocation of radon from wooden walls, other constructions of houses and underground space is improbable. Hence, high variations of volumetric concentration of radon in different houses are caused, mainly, by burning of methane. It is established that in houses equipped with heating...

Natural sources can contribute with significant radiation quantities toward the total radiation exposure that humans receive. The majority of this natural radiation is harmless to humans in the ambient environment. However, radon, a large component of the natural radiation which humans are exposed to, can pose a threat to the workers health when radon gas accumulates in poorly ventilated occupational settings. Radon is the most hazardous natural source of radiation. Even if it is an inert gas, having no color, tas...

This study investigates content of radioactive gas radon ? Rn-222 in a number of sources of surface waters of different type (spring, artesian, well, river etc.), located in the territory of Kartli artesian basin, Georgia. Water samples were selected from 23 sources. Researches were carried out in the period January-December; samples from several locations were selected monthly. Electronic radon detector RAD7 was used for radon content determination. It was established, that radon content ranged depending on the s...

Radon is dissolved in ground water and can be transported from the source with water into the buildings. Subsequently indoors, when water is exposed to air, radon is released. Showers and sprays are a prime release method and the greater the water usage, the greater potential radon problem may occur. Outdoors, radon is quickly diluted to very low, not problematic concentrations but indoors, it can concentrate significantly. Although radon in indoor air is indicated as the second leading cause of lung cancer, not e...

It is already a fact that at present a major source of obtaining competitive advantage is related to the green development of enterprises. Sustainability is an important element in the core values of the consumers belonging to the Millennial Generation, which is the most numerous living generation nowadays. In this context, all projects related to the implementation of sustainability respect the profile of this new consumer. In 1992, the European Union Ecolabel has been established for several types of products an...

Climate change is one of the biggest challenges of the 21st century and can largely be attributed to human activities, such as burning fossil fuels, according to the 4th Global Evaluation Report of the IPCC (Intergovernmental Panel on Climate Change). International agreements have been made in order to reduce the emission of greenhouse gasses. In Romania, there is a national objective of using energy obtained from renewable sources in a minimum quantum of 10%, by 2020. In order to reach this goal, fuel providers h...

Romania is one of the most seismic-prone countries in Europe due to the periodically occurrence of strong intermediate-depth earthquakes in Vrancea seismogenic zone. In the last decades, many efforts were done to gather macroseismic intensities in case of felt Vrancea earthquakes and additionally an online environment was developed for the automatic approximation of the intensity from people feedback. Besides the extended scientific studies, the near real time estimation of the macroseismic intensity recently beca...

Relevance of results. One of the main factors of the accelerated transition to innovative development of the economy on the basis of the formation of high-tech industries is rational nature management, which makes it possible to use the country's natural resources with the greatest impact and, on the basis of their deep processing, create new types of structural materials and promote the introduction of advanced technologies and industries. The implementation of these tasks determines the need for a well-founded p...

This article is intended to bring closer the raw materials policy of the Czech Republic, which is part of the European Union, so the article also refers to marginal and raw material policy of the European Union and secondly it is the aim of article introducing potential sources of mineral resources in our territory. Raw material policy can be understood as a political, legislative and administrative framework for reliable, affordable and long-term sustainable supply of raw materials. Raw material policy is a strat...

The digital economy is the basis for the development of society as a whole and has an impact ona variety of sectors of the economy, improving the quality of life, expanding the accessible environment for people. There is a need to determine the degree of readiness for the transition to the digital economy of all participants in the process: the business community, the government and the population. International and Russian indices are being developed to determine the position of countries. The low position of our...

This paper presents a recent study regarding choosing and optimizing of the appropriate test methods to characterization and analysis of used oils from different sectors of activity, in order to evaluate the heavy metal content. In the first step, the samples preparation stage for metal analysis, a number of preparation methods have been tested and finally chosen as optimal, a microwave digestion method. For comparison the metals were analyzed by inductively coupled plasma mass spectrometry (ICP-MS) and atomic abs...

The flue ash and slags are accounting a significant part of thermal electric complexes waste, which operating on solid energy fuel. Most of this by-product does not find further application, accumulating in ash-disposal dump areas. Meanwhile, ash-and-slag wastes can widely use as raw materials for the production of building materials. Considering the world trend towards an increase in the share of waste secondary use, it is necessary to forecast their subsequent processing in Russia too. The purpose of work was mo...

Renewable energies are considered among those that do not produce pollutant emissions and therefore have world-wide benefits, their exploitation indirectly contributing to reducing local pollution but also global phenomena (primarily greenhouse gases). As a result, the development of technologies to exploit these significant and non-polluting energy sources is one of the main objectives of global energy policies that, in the context of sustainable development, aim to increase energy supply security, protect the en...

The rocks exploited in quarries have certain physical, mechanical and technological characteristics that favors the intense wear, especially by abrasion of the active surfaces of the subassemblies of the technological equipment. Some spare parts and subassemblies are subject to similar wear phenomena, as is the case with the excavators bucket teeth in the lignite pits and the loaders cup teeth in the basalt pits. In the case of the basalt aggregates which are the main raw material needed for the development of the...

The subject undertaken in the article is poorly researched so far, and at the same time very current, because it concerns the space management strategy in large European cities in the aspect of sustainable spatial development policy. It concerns certain type of Space Left Over After Planning ? areas under elevated infrastructure (bridges, viaducts and flyovers). Underspaces either mostly remain undeveloped for long time or are intended for parking lots or technical facilities. Lack of inadequate management and neg...

After the regression of mountain glaciers, the typical forms of morainic lake basins were created in morainic deposits at the bottoms of the Tatras valleys. During some period they were filled by alpine lakes. During Holocene, a lot of lake basins were deformed by geomorphological processes. Frequently the lakes in them disappeared. Nowadays, it is possible to identify them by precise DTM of relief despite long time interval. In this article, we reconstruct defunct alpine lake in Zelen? pleso valley, its hypotheti...

Changes of environmental situation such as pollution of the atmosphere, surface water and ground water quality deterioration require measures to reduce the harmful effects of human activities on the environment. As such, the problem is the inability of some treatment facilities to provide a quality of treatment that meets the requirements of modern environmental standards. This leads to a decrease in water quality and eutrophication of water bodies. The goal of this article is choice of biochemical treatment metho...

The paramagnetic properties of core samples from the section of the reference well were performed on 62 samples (1478,1? ? 1455,3? interval) Zadon?s horizon Famennian period by electron paramagnetic resonance (EPR) for mineral associations of the of the Upper Devonian deposits of the Volga-Ural region of the Republic of Tatarstan. Thus, a complex of geochemical EPR parameters of rocks (Mn2+, Fe3+ in limestones, anionic complexes SO3, SO2, PO2, alfa = 15 * I (Mg) / I (Ca) ions Mn positions Mg / Ca in dolomite, C600...

The gamma-ray logging method is one of the mandatory well logging methods for geophysical exploration of wells. However, during the conduct of such a study, the sensor, for one reason or another, may stop recording observations in the well. If a small number of values are missing, you can restore these values using standard methods to fill in gaps like in time series. If data miss a large number of values, observations usually are made again, which leads to additional financial costs. This work proposes an alterna...

Project management is a recognized and used technique for the preparation and implementation of projects. There are several different methodologies worldwide, which try to achieve the same goal by different approaches - previously defined goal of the project. In construction industry, the projects are always connected to the particular type of construction. However, the goal of the project is not the realised construction itself, but it is the means how to achieve it. Construction production is characterized, amon...

In this paper are presented some researches concerning the recycling process of Co-Cr powders that is used by the sintering process DMLS. Direct Metal Laser Sintering process is an additive laser manufacturing technology and is used in different domains like tooling, aerospace, medicine and auto. In the tooling domain, Co-Cr alloy powder is sintered by DMLS process, using a Phenix Systems machine, for obtain different mold prototypes. Co-Cr alloy powder presents good mechanical and corrosion properties. The SEM an...

In this paper are presented some researches concerning the recycling process of Co-Cr powders that is used by the sintering process DMLS. Direct Metal Laser Sintering process is an additive laser manufacturing technology and is used in different domains like tooling, aerospace, medicine and auto. In the tooling domain, Co-Cr alloy powder is sintered by DMLS process, using a Phenix Systems machine, for obtain different mold prototypes. Co-Cr alloy powder presents good mechanical and corrosion properties. The SEM an...

Widespread use of natural stones has been a habit that has been going on for centuries. In addition to this widespread use, this material causes a significant amount of waste materials to be exposed during the processing of these materials. This is an economic problem in terms of both environmental pollution and disposal in waste materials. Therefore, the evaluation of these natural rock wastes is an important issue. In this study, it is aimed to recover the waste materials in natural stone workshops in Kahramanma...

The automotive industry is today a sector that significantly influences and at the same time develops other sectors of the national economy such as engineering, metallurgical, electrical, chemical or construction industries. The paper deals with the possibility of recycling recovery of selected components from vehicles over their lifetime. The authors focus on the components of external vehicle lights (front lights, rear group lights, front fog lights, side direction lights, branding light). It presents its own re...

There is a problem of ineffective usage of a significant part of the secondary resources formed as a result of industrial processing of agricultural raw materials that are usually wasted causing considerable damage to the environment. Sugar production from sugar beet is a major source of secondary raw materials. With an average yield of sugar of 10-12% to the weight of the processed beet, about 83% of beet pulp, 5% of molasses, and 12% of filter sludge are formed, which can be used to produce a variety of valuable...

This article discusses the possibilities of recycling waste material generated using 3D FDM or FFF printing technology and its use in the re-production of printed material. Additive technology is an increasingly popular method for the rapid design of components and machinery parts. It enables creating prototype components and assemblies relatively quickly. This makes it possible to search for the right design of a given component and to choose from several options (e.g. finding the correct shape in ergonomics). Ho...

Waste poses a growing problem is the contemporary world. The volume of household waste per resident continues to increase at a staggering rate. In line with the EU requirements, growing proportions of waste should be recycled, and Poland is expected to recycle 50% of its entire waste stream by 2020. Biological waste can also be recycled, but the recovery rate for this waste fraction is close to zero in Poland. The above applies particularly to biological waste from households. The quantity of OFMSW generated by a ...

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 companies need to change in order to be competitive on the current market. There are multiple ways to change in order to face the market. One of the most efficient instruments is organization development which refers to increasing the individual, group and organization performances, to improving the organization ability to respond efficiently to outside changes. The organization development refers to increasing the internal capabilities, ensuring that the organization structures, human resource systems, posts,...

The resins extracted from heavy oil sample from Ashalcha oilfield (Tatarstan, Russia) and the products of Co-based catalytic and non-catalytic aquathermolysis are investigated. Saturates and four subfractions of resins (R1-R4) are extracted by liquid adsorption chromatography method with individual and solvents. Fractionation method leads to obtain more detail information about the structure of high molecular weight compounds due to subdividing large molecule and its aggregates into small ones. The extracted subfr...

Use of fish meals or oils in the poultry diets has made it possible to increase the level of long chain n-3 fatty acids in meat. When meat is enriched with polyunsaturated fatty acids (PUFA), all vegatble fat sources are less effective than marine fats. This effect results due to the content of n-3 fatty acids (FA) because marine fats or oils are composed of eicosapentanoic acid (EPA) and dosahexaenoic acid in generally a higher proportion whereas vegatable oils contain linolenic acid (LNA) whose conversion to lon...

Use of fish meals or oils in the poultry diets has made it possible to increase the level of long chain n-3 fatty acids in meat. When meat is enriched with polyunsaturated fatty acids (PUFA), all vegatble fat sources are less effective than marine fats. This effect results due to the content of n-3 fatty acids (FA) because marine fats or oils are composed of eicosapentanoic acid (EPA) and dosahexaenoic acid in generally a higher proportion whereas vegatable oils contain linolenic acid (LNA) whose conversion to lon...

The impact of civil aviation objects on the environment is characterized by a number of features related to the fact that this kind of anthropogenic activity is rapidly developing, taking on increasing importance in humanity`s life. Also, civil aviation is one of the most important connecting elements of international relations. Improving the efficiency of fuel resources applying, which is one of the priority directions for the country's economy development, increases the environmental safety of the investigated o...

The paper presents the results of the study of modern movements of the Earth's crust in the southern part of the Nizhnekanskiy massif according to global navigation satellite systems (GPS/GLONASS). The article presents preliminary results of geodynamic zoning of the Yeniseisky site based on the methods of system analysis. Nizhnekanskiy massif is located at the junction of major tectonic structures - the Siberian Platform and West Siberian Plate. Its southern part is characterized by stable tectonic regime, the ave...

The tectonic interpretation of crustal seismicity data have been recently performed for the central part of the Moesian Platform, having as main target the in-depth development of the Intramoesian Fault[1]. Seismological data for Romania, Bulgaria and the western Black Sea, compiled from published local, regional and global earthquake catalogues and merged into a database, were used to analyze the crustal seismicity (0?40 km) on multiple N-S trending sections across the North Dobrogean Orogen and the eastern part ...

We have developed an online information system of mechanical recanalizations which is used in stroke centers in Czech Republic. The application is technically based on HTML forms, PHP and MySQL database. The system is online, independent on operating system and with possibilities to extend the functionality, there are main benefits. The database of mechanical recanalizations is a useful tool for long-period studies in neurosonology. Practical using, goals and benefits of the system is discussed in the first part o...