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Health and working efficiency of river and marine craft crews depend largely on the quality of drinking water. In this respect, autonomous water treatment systems for ships are of extreme importance, which should be efficient, reliable, and safe providing required quality of drinking water by all chemical and microbiological indicators. The article analyzes existing methods of cleaning, disinfecting and conditioning drinking water for ships. Methods of maintaining drinking water quality during prolonged storage in...

The value of wood is only, if it has good appearance as well as mechanical and physical properties. During tree's life, it is influenced by various factors, the effects of which changes wood properties causing different damage to tree stem. Wood defects are caused by biotic, abiotic and anthropogenic factors. Defects of tree stem arising from non-parasitic origin occur on the stems, branches and roots. In total, 86 pure and mixed stands of Norway spruce were surveyed, but this study includes only 11 young forest s...

Globalization generates new demands, structures and systems requiring new skills and knowledge. Continuous changes and technological advancements in various industries in the country cannot but make the teaching staff of the universities consider new ways of improving the training system to ensure better acquisition of a foreign language. The paper deals with the trends, goals and tasks in Teaching English for Specific Purposes in Russian technical universities. ESP is a two sided process: English for developing s...

A total number of 22 tsunamis were generated in the Black Sea in the past, as stated in the literature. Three from the twenty-two events were triggered by earthquakes occurred in Shabla area, the most dangerous one for the Romanian and Bulgarian shores, as follows: the oldest one, in Bisone area, 1st Century BC; year 543-544 AC, an earthquake of 7.5 M triggered waves of 2 - 4 m; the most recent, on 31st of March 1901, a 7.2 M earthquake generated 2.5 - 3 m tsunami waves, or 5 m according to other sources. The TRID...

The first major crisis in the history of the economy was "Tulip Mania" in Holland in the 1630s. Tulip, a flower spread in Iran, Turkey and Afghanistan, was first studied by the Flemish botanist Clusius, who brought the first bulbs to Europe at the end of the 1500s. He planted the tulips in a "study garden" of the University of Leiden. The interest of the people for the beautiful flower, called by the Iranians "Laleh", has been great since the beginning. Clusius notes that in 1598 the thieves stole 100 bulbs in one...

The paper exposes the tuning and the evaluation with experimental data of an algorithm used to predict the lost data in the GPS readings due to the acquisition rate significantly different from that of the Inertial Navigation System (INS). The developed algorithm provides a real time prediction of the GPS data at the same rate with the INS data in order to be ready for the processing step, which realizes the fusion of the two systems. To acquire the data, an INS/GPS hardware structure based MEMS sensors has been d...

The study was focused on the intensification of sensitive landscape degradation by tunnel erosion (i) to determine the particularity (ii) of this process in the studied area in order to establish regional sustainable management. The studied site is located in the southern part of Jijia Plain, on a complex slope (faces west) from Bogonos Valley. The Tma is 9.5oC and the Pma is 501.7 mm. The dominant soils are Solonetz, Solonchaks, and Regosols formed in salt-bearing clay deposits. The soil characteristics associate...

Typification of ice conditions in the Arctic is an essential step to solve important applied problems in the field of arctic marine transportation since in such studies a variety of ice conditions is often described by a predefined set of typified scenarios that directly influence the results. Criteria for ice typification traditionally include the parameters that represent all the sea area, e.g., total ice coverage, area of old ice and other. However, our practical experience shows that such criteria do not alway...

Present article contains new data on detailed study of typomorphic features of placer gold of the Krutoy creek (Khatyrkhay ore-placer cluster, Southern Yakutia). Basic typical characteristics of native gold are identified: granulometry, morphology, chemical composition, trace elements, micromineral inclusions and features of inner structure. Used traditional complex of analytical methods of studying placer gold allowed obtaining information about mineral type of primary mineralization and identifying association b...

Typomorphic features of placer gold from alluvial deposits of the Bolshaya Kuonamka river basin, draining Eastern framing of the Anabar massif are studied in order to identify association types of primary sources and places, promising for their discovery. Based on identified indicators of gold, it is defined that, ore manifestations of low-sulfide gold-quartz association are the main primary sources of gold-bearing placers. Identification of palladium gold in association with platinoids, as well as its intergrowth...

There a few important factors, that nowadays, unmanned aerial vehicles (UAV) are used by wider community, and for cases and applications, that cannot be performed never before. Small UAVs, as a photogrammetry measurement tool provide flexibility, reliability, are safe and easy to use, can be deployed in minutes, initial measurement can be delivered yet on the field, and final accurate measurements are calculated in a very short time, even using online services. A numerous cases was studied on Department of Geodesy...

Presently intensification of heavy oil production, particularly by applying various catalytic systems, is very attractive and relevant task for many researchers. Catalysts intensify a destruction process of high molecular compounds such as resins and asphaltenes. Thus, providing irreversible viscosity reduction of nonconventional crude oils. In this regard, investigation of ultra-dispersed catalysts based on transition metals is of current interest. The small particle sizes of catalysts yield a strong activity dur...

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...

Direct and inverse problems of propagation of elastic waves in an inhomogeneous soil are considered. Based on the analysis of the vibrational field, the associated tasks of vibrational ecology are solved. These problems arise because of the impact of transport and construction equipment in the city. The propagation of elastic waves in the soil can lead to large levels of vibration on the surface of the earth and create unsatisfactory conditions away from sources. Transport, and especially the subway, have the stro...

Silesia Province, which is located in the southern part of Poland, belongs to regions with the most degraded lands in the whole country. According to the ?Environmental Protection 2017? (in Polish ?Ochrona ?rodowiska 2017?) report, prepared by the Central Statistical Offiice, in 2016 there were about 4900 ha of devastated and degraded areas in Silesia Province, which required reclamation. The reason for the occurrence of degraded lands in this area is the intensive exploitation and processing of natural resources....

Since thermal energy is one of the most environmentally hazardous industries, the issues of environmental compatibility of thermal power stations (TPPs) construction are the priority. One of the main supporting pre-project documents on projected construction of TPP is a report on its environmental impact assessment (EIA). Due to the diversity of technology options for generating electrical power, as well as differences in natural and man-made, economic, social and other conditions of the territories intended for T...

During the process of conceptual designing of earthmoving or construction boom type machine we have must ensure that it is applicable in practice, meaning stable. Unfortunately, not every time is design of upper structure of such a machine ideal in consideration of position of centre of gravity and that is the reason why are stabilizing outriggers usually attached. This article talks about possibilities of use various schematic drafts of stabilizing outriggers for earthmoving and construction machines on the wheel...

In the past decades Romania?s forest habitats suffered from human activity impact, resulting in loss of biodiversity and ecosystems services, thus highlighting the need for improved conservation measures. In 2008 the IUCN initiated a global Red List of ecosystems (Resolution 4.020, IV World Conservation Congress in Barcelona). The IUCN Red List of Ecosystems is planned to be a standard for assessing the status of ecosystems, which is applicable at local, national, regional and global level. In this article highlig...

The goal of this paper is to define an answer to the question how to design public green areas around multi-family residential buildings and what is their role in the spatial structure of the city. Big cities struggle with the problem of an insufficient share of green areas. Actions are being undertaken in order to introduce green areas in spaces with a high floor area ratio. A good example in this respect is Cracow, where in recent years a project of organising a number of pocket parks has been implemented. Simul...

The soil is the predominant environmental factor for the accumulation of pollutants, including heavy metals, from where, in time, they enter into the global plant-water-animal-human circuit. Some heavy metals with higher toxicity and mobility such as Cd, Pb and even Zn and Cu can be accumulated in large amounts in the edible part of the plant or animal organs, generating consumer illness, some of the worst. This paper presents two examples of cities in Romania, Cop?a Mica and Baia Mare, where, for a long time, met...

One of the problems that are encountered today is the migration from rural to urban areas. Cities are becoming overpopulated and consequently overbuilt. Due to the high demand for new residential and commercial buildings, in the last few decades, green zones such as parks are often becoming built. In the cities, there is increasingly less room left to nature. Urban vegetation has a large impact on the quality of life in cities. The aim of this research is the detection of urban vegetation by three independent mult...

Contribution of water use, other types of economic activities and natural features to the water pollution is still unclear. Previous researches outlines also that anthropogenic factors affecting water quality in urban areas differ from those in rural areas. The purpose of this study is to identify effects on freshwater resources from urban water use in the Yamal-Nenets Autonomous District as a part of Russian Arctic. The study is based on regional and federal reports on the sanitary-epidemiological situation and e...

This paper described results of the research in the field of organic based raw materials from the textile industry for the production of vacuum insulating panels (VIP) with extremely low thermal conductivity value. The paper presents current research findings on the behavior of fibrous structures on an organic basis at extremely low pressure. The practical findings and results of experimental work on the production and behavior of vacuum insulating panels with an alternative core insulant based on organic / natura...

Ash resulted from coal burning in steam generator boilers of large power plants is an industrial waste which rises major problems for the environment, both in terms of large quantities currently generated and quantities accumulated over time in specific deposits. Concerning the fly ash in the flue gas and trapped in electrostatic precipitators the recovery is 100% possible as raw material for cement used in construction manufacturing. For bottom ash virtually no current use exists, the amount being insignificant c...

Biodiesel is well known alternative energy source to conventional fossil fuels. The most common production method of biodiesel is vegetable oil transesterification with methanol, which leads to glycerol formation. Increasing worldwide production of biodiesel causes considerable surplus of glycerol. To solve this problem, biodiesel production method from vegetable oil via interesterification is topical, via interesterification gycerol can be replaced with by-product, which is not necessary to separate from the biod...

The aim of research was to develop technical conditions for theproduction of biodegradable polymer films with usage of native and modified maize starches. The expected effect is the expansion of the range of modifying components for biodegradable polymeric products based on low density polyethylene and the reduction of pollutants emissions into the environment. It was determined a ratio of components for the production of thermoplastic starch (TPS) and parameters of extrusion processing of polyethylene and plastic...

The diversity of sites with a high proportion of metals is characterized by the occurrence of specifically adapted microorganisms. Their identification and subsequent accurate genotypic and phenotypic characteristics are a prerequisite for further practical applications, especially in bioremediation processes. The article deals with evaluation of biochemical features for fenotypic identification of bacterial microorganisms. 30 new isolates of gram-positive microorganisms of genus Arthrobacter, Bacillus, Brevibacte...

The paper aims to highlight a new development in the field of subterranean measurements undertaken in Romania, as it proposes a replacement for classical geodetic techniques with a laser scanning approach, through which measurements of the geometry of a terrain or structure can be made completely automatic, with high speed and precision. In this case, the chosen methods (classic measurements and 3D scanning) created the possibility of integrating and storing data into an intelligent three-dimensional model of the ...

The relationships between vessels and water environment in which they do exploitation tasks are presented in this paper. In conjunction with that fact that vessels are the biggest means of transport, they also have the biggest propulsion units having substantial influence on polluting the natural environment. Therefore an attempt of analysis whether replacing liquid hydrocarbon fuel with alternative fuels reduces degradation of the environment was made. For this purpose an analysis of alternative fuels, mainly bio...

Forecasting a demand for hard coal is no easy feat, especially at times when there are constant transformations of the country?s energy mix structure. This stage should be realized in every mining company as grave mistakes in estimating a prospective sale may result in a disadvantageous economic situation of a company. The article presents an autoregressive model which mining companies may use to analyse the predicted sale of a raw material in order to plan an action strategy based on the achieved results.

Today, trains are equipped with up to seven different navigational systems. Each is extremely costly and takes up space on-board. A train crossing from one European country to another must switch the operating standards as it crosses the border. All this adds to travel time and operational and maintenance costs. Together with other technical differences ? for instance in terms of rail gauge, electricity voltage, rolling stock design, etc. ? the existence of more than 20 train control systems in Europe has always b...

This work will deal with the use of various geophysical methods for exploration of the sliding area and the determination of the interface between the layers in the sliding area at the Bohu?ovice Quarry. For this purpose, light dynamic penetration will be carried out, which is a dynamic penetration test that is used in-situ to determine the soil resistance of penetration cone. A constant dynamic impact is used to constrain the cone, which is due to the free fall of the ram with known weight and constant fall heigh...

The purpose of this paper is to analyze the negative effects of surface leakage through soil erosion in a hydrographic basin. The analysis, in the context of a phenomenological methodology of erosion, involves the detailed knowledge of the agents, factors and interaction mechanisms. Thus, a multitude of mathematical models have been launched, in order to model this natural phenomenon. In this paper, an analysis of sheet erosion is performed, both in situ and through erosion modeling. This was carried out, by using...

Modern viticulture of Russia should be based on the production of certified planting stock. The production of planting material of the highest categories in the Russian Federation is absent. The main goal of the research was to improve the technology of clonal micropropagation using growth regulators. The task was to obtain a healthy planting stock of grapes and to introduce a certification system for planting material according to the pattern of European countries. The object of research were complex-resistant va...

Modern viticulture of Russia should be based on the production of certified planting stock. The production of planting material of the highest categories in the Russian Federation is absent. The main goal of the research was to improve the technology of clonal micropropagation using growth regulators. The task was to obtain a healthy planting stock of grapes and to introduce a certification system for planting material according to the pattern of European countries. The object of research were complex-resistant va...

In the production of metallurgical products, large amounts of waste are generated, which occupy significant areas and pollute the air, water and soil with toxic compounds. However, such wastes contain many valuable elements that can improve the operational properties of construction products, including lightweight cellular concrete, which will solve several problems at once: to free land, to improve the ecological situation in the area, to improve the quality of construction industry products. It is offered to use...

The article herein concerns direct conversion of thermal energy into mechanical energy of fluid motion by means of a specially designed thermomechanical pump. The conditions of fluid boiling in constraint environment were considered. The peculiarity of fluid evaporation in constraint environment when no natural convection is developed in the tubes is periodic overheating and explosive growth of vapour phase which leads to shooting the fluid out of the tube. Vapour slugs formed under slug boiling conditions are the...

To decrease the CO2 levels in the atmosphere without compromising with the electricity production and energy security two different issues have to be addressed ? replacement of the current use of fossil fuels with CO2-neutral fuels and increase in the efficiency of the existing processes for thermal conversion. Fluidized bed (FB) thermal conversion is usually considered as the most energy efficient choice when biomass and municipal solid waste are used as fuels. The bed material that is used commonly within FB boi...

The issues of rational use of land resources have become increasingly relevant, as all economies depend on the goods and services provided by the natural environment. Soils as a natural resource perform a number of key environmental, social and economic functions. In Latvia, utilised agricultural land occupies 2.3 mln. ha, yet no research investigations into organic soils have been conducted. The use of agricultural land, organic soils in particular, is associated with negative environmental impacts. Therefore, th...

Due to the fact that suitable information regarding the resources in forest administration in very important, forest inventory of fields is used in forestry to assess and monitor forests on a wide scale. Today forest and land cover parameters are estimated using satellite and ground reference data. There are several field and remote sensing methods which are used for providing data but with high cost in order to fulfill and sustain the requirements. An alternative solution to these methods is the Earth Observation...

The use of risk analysis methods in evaluating mining landscape. Mining landscape and landscape affected by mining activities is typical for the Moravian-Silesian Region. It is caused by coal mining, which took place on a large amount of territory in the past. Currently the mining is reduced, however, the effects of undermining will continue to persist in the area affected by mining activities. The development of mining is also closely related to the development of industry and industrial production. For evaluatio...

In recent years, methods of building evaluation from the point of view of their energy management, environmental footprint, etc. have often been applied in practice and also have been involved to not only Czech legislation. This is why the owners, operators and designers of buildings are motivated to design and operate energy-saving technical solutions, other drinking water consumption. This article discusses the possibilities of using wastewater at school facilities to reduce the cost of drinking water. The paper...

My presentation discusses facts about usage of brickmaking materials necessary for production. I named technological processes for extraction of brickmaking materials reaching to fifties of twentieth century. Their shift in modernization of technological processes in extraction of brickmaking materials and their current state. I concentrated on individual mechanical devices. From first machines serving in help of extraction, transportation and processing which have been entering extraction processes from the begin...

3D laser scanning digitization delivers digital copies of existing buildings in its natural form and helps architects and industry specialists keep historical monuments in a database and render their restoration very accurate and cost-effective smaller. Also, the digital copy contributes to preserving and protecting the monument, and at the same time it can be passed on to future generations in the most accurate way. Laser Scanning is a new geodetic technique through which can be measured fully automatically land ...

A model of traffic dynamics of the University server node is described, interpretation of the proper model components is carried out, and the interval of a satisfactory forecast is estimated. Currently, corporate computer networks play an important role for the successful functioning of various organizations. Herewith, the number of each network users gradually increases, which contributes to an increase in the circulating information content and, accordingly, worsening the quality of network services. To date, li...

The transport sector is one the most energy-intensive sector on planet. Whether we are discussing about cargo or travelers, the transport sector is causing environmental damage. Therefore an Impact Assessment study in the Transport sector concerning energy efficiency should draws attention. First of all the transport cost decrease, and second it contributes to the natural resources to be saved by the fossil fuels.Reducing greenhouse gas emissions and current rate of global warming can happen using a proper energy ...

Fruit yogurts are always preferred among dairy products, as they are delicious low-calorie foods associated with healthy nutrition. Now yogurts with tropical fruits are popularity due to their exotic taste and positive influence on human health. The production of yogurt with the addition of feijoa is limited to a short period of storage and selling of this fruit. Vacuum freeze-drying can solved this problem. Therefore, the aim of this research was to determine the rational amount of freeze-dried feijoa for adding ...

Fruit yogurts are always preferred among dairy products, as they are delicious low-calorie foods associated with healthy nutrition. Now yogurts with tropical fruits are popularity due to their exotic taste and positive influence on human health. The production of yogurt with the addition of feijoa is limited to a short period of storage and selling of this fruit. Vacuum freeze-drying can solved this problem. Therefore, the aim of this research was to determine the rational amount of freeze-dried feijoa for adding ...

The purpose of the pursuit of behavior in time of the deposit of dross Santaul Mic was to obtain information in order to ensure the ability of the shipbuilding for a normal operation, the assessment of the conditions for the prevention of incidents, accidents and damage, that reduce the material damage, loss of lives and of the degradation of the environment (natural, social, cultural) and to obtain necessary information for the completion of the work in the construction industry. The study consisted in experiment...

The fast development and densification of urban areas, combined with climate change conditions, have a consistent impact on urban water management services such as rainwater handling. The current pattern of urban development focuses on the creation and expansion of grey infrastructure, resulting in the deterioration of the natural environment and the loss of ecosystem functionality. This research aimed to identify and mix technical (hydraulic) solutions with green- infrastructure and with town-planning measures in...