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The paper is focused on manifestations of chaotic behavior in the time series of pollution concentration. Deterministic chaos denotes a type of complex behavior of a deterministic dynamical system. The most important algorithms for data representation, prediction, phase space reconstruction, dimension, entropies, persistence and Lyapunov estimation are applicate here. At first we estimated the time delay and the embedding dimension, which is needed for the Lyapunov exponent estimation and for the phase space recon...

Territories of Bolshezemelskaya tundra are characterized by permafrost and large number of lakes in the region. Harbey lakes are the largest lakes system in the South-East of Bolshezemelskaya tundra. The system is a chain of series-connected water bodies (Golovka, Bolshoy Harbey and Maliy Harbey), which are connected by ducts with shallow lakes (Kilometrovoye, Kotovo, Leningradskoye). Short columns of bottom deposits of Kotovo and Kilometrovoye lakes with the lengths of 27 and 16 cm, respectively, were analyzed fo...

The Ob and the Lena Rivers are considered in the research. They are two biggest rivers of Russian Arctic and have the annual runoff 405 and 530 km3/year correspondingly. Analyse of multiyear data of Russian Hydrometeorological Survey (Roshydromet) and own measurements in the mouths areas allow to describe a tendency of water resource and water quality development in these regions according to climate change and human impact. Long-term river runoff and concentration of major and trace elements in water have been co...

The impact of climate changes on rural areas will take place in the context of many and dynamic political, economic, social, and land-use trends, the focus being on water supply, food security, agricultural incomes and rural infrastructure. Adapting rural areas to climate changes challenges is not an easy task and involves complex and multi-dimensional processes which are developed at different scales. Adopting and implementing adaptation measures for a climate smart and resilient rural space is only a stage (whic...

The process of underground hard coal exploitation is accompanied by the release of methane. This phenomenon has been present in the majority of Polish hard coal mines, with the intensity of methane release from hard coal seams exhibiting a growing trend on a year-by-year basis. The highest amount of this gas is emitted into the atmosphere, with only a small part being collected by methane drainage systems and subsequently used for industrial purposes. In 2017, all the hard coal mines in Poland released 611.15 mill...

In the paper, the comparative analysis of results of the research concerning energy con-sumption of separation process and influence of operational parameters is presented. Results are acquired basing on experimental and computational research. Scope of the analysis is stated within cascade system with lack of gas recirculation and membrane system with gas recirculation. Investigation is performed using UBE NM-BO2A capil-lary polymer membrane. In the paper, operational characteristics of compared systems, obtained...

The forecast of a convective situation is achieved not only through the analysis of the synoptic situation as well as with the help of instability indicators. These are determined either by means of data obtained from aerologic surveys or by using numerical models. The data presented in the paper are obtained using the model ALADIN (Aire Limit?e Adaptation Dynamique D?veloppement InterNational) model. Run instability indicators were KI, TTI (Total Totals Index) and CTI (Cross Totals Index) CAPE and MOCON. The anal...

Pressurized combustion is a technology that significantly reduces emission of gaseous pollutants. This work presents the results of pressurized combustion of Ziemowit hard coal at air- and oxy-combustion regime. Impact of pressure on SO2 conversion is analysed and discussed. Experiments were carried out using auto-thermal, laboratory-scale (fuel input of up to 0.8 kg/h) bubbling fluidized-bed (BFB) combustor under pressurized conditions (0; 1.5; 3.5 and 5 bar) and while flue gas composition was continuously analys...

There is a fact that where surfaces are in contact with relative movement, there is also wear, with these aspects dealing the Tribology. There are other mechanical parts destroyed during functioning by the fatigue of the materials. Usually these two phenomena are studied separately. But there are mechanical systems where these two actions are joined into a single degradation event, leading to a shorter working time for the parts. The study of the tribo-wear as a simultaneous action with the material fatigue, leads...

One of the most serious environmental problems in Poland is the pollution of the atmosphere. Due to the fact that the energy production mainly uses conventional sources of energy ? including predominantly hard coal, lignite and natural gas ? harmful products from the combustion of the raw materials get to the atmosphere. The air pollution from the combustion of hard coal is caused by many factors. They include the use of outdated furnaces, the inadequate use of furnaces and heating equipment, burning of low-qualit...

The article presents dangerous meteorological phenomena which occurred at Rzesz?w-Jasionka Airport. It investigates hazards caused by dangerous meteorological phenomena for conducting take-off and landing operations. During this study, the approach landing systems were considered. Rzesz?w-Jesionka airport is an airports with a large number of flying days. It can be said that there are climatic conditions conducive to a safe performance of air operations. Meteorological data from the period of 2000-2016 were taken ...

The article proposes an air quality monitoring system in subway stations (possibly in trains) considering that air intake is made in many stations at ground level where the level of noxes (PM, CO2) is high. The proposed system uses sensors for air quality, presence of toxic gases, smoke and fire protection, monitors air quality and permanently provides this information to travelers either by accessing a site and / or locally via a graphical interface. Environmental monitoring information systems are systems of sur...

The presented paper identifies a potential factor that can amplify the atmospherically pollution due to drive?s biomechanics through the actuating devices and car controls. Most of the car drives neglect the operating techniques suggested by the manufactures. Thus, the overwork of the internal combustion engine amplifies the pollutant emissions. The driver position and the level of pollutant emissions can also be influenced by the heeled shoes. The delayed action of the clutch pedal and the delayed gear change lea...

As it is well known, casting is a semi-fabrication process with a wide spread in many industrial sectors, especially in the automotive industry. In some cases, castings either have to be rehabilitated before obtaining the finished part, or in some cases some finite parts that are more stressed, after a certain number of hours of operation in a subassembly, will present an advanced wear condition, which will make the further operation of the respectively assembly impossible, this requiring the reconditioning again....

The cement concrete road pavements we can characterized with sensitivity to temperature changing and after that linear deformation, stresses owing to temperature gradients also. In pavement design we have to consider the traffic load and temperature condition. Unsuitable connection of concrete slabs has in results failure of pavements. In article is description of cement concrete pavements behavior under temperature changing and alternative solutions of structures and measures in rehabilitation design.

The challenge for the International Maritime Organization IMO is to reduce and eliminate any adverse impact by shipping on the environment by increasing the emphasis on the role of the human element in environmentally sound shipping. Nautical students become familiar with the international regulations for the prevention of air pollution from ships such as the revised Annex VI of the MARPOL Convention during the IMO courses [1] or other subjects (i.e. Maritime Law) that are mandatory for obtaining the certificate o...

The increase of private car share in travels causes significant difficulties in functioning of transport systems especially in large urban agglomerations. Excessive use of cars is associated with: energy consumption, traffic congestion, negative influence on the environment (increase in noise level, increase in emission of fumes), cutting up of the neighborly bonds, road accidents, destruction of urban landscape, which in turn leads to general deterioration of the quality of urban life. The main real countermeasur...

Along with welding, the casting of metal alloys is a primary production process, with great spread in the industry, especially in the machine building industry. By casting, a series of semi-fabricated products are obtained, from which, subsequently, by metal grinding processes finite parts are obtained such as straight and cranked shafts, belt wheels, gears, various casings, motor blocks for internal combustion engines and others. There are many casting processes used on an industrial scale such as: casting in tem...

Based on the data analysis on emission, discharge and waste of the mining and processing enterprise В«ApatitВ» (Murmansk region, Russia), the article submits data on the enterprise activities impact on the atmospheric air quality and water bodies for the period from 2009 to 2017, also submitted data on compliance with limits and on environmental payments. Statistical data on the composition of production and consumption wastes are shown. Special attention is paid to the analysis of environmental activities of the ...

The main air pollutants in the urban areas are power stations and transport. As a result of fuel combustion, heavy metals and solid particles with unknown composition enter the atmosphere. Concentrations of heavy metals in the snow can be an indicator of air pollution in urban areas, also giving us indications on the origin of pollution. Heavy metals accumulated in the snow in significant quantities in the cold period. But in the spring, runoff after the melting of snow presents a significant source of pollution i...

Humic substances (humic and fulvic acids) are widespread, being present in soil, water, lake sediments, peat, and different coal. Therefore, there is a great interest for their immense role in terrestrial and aquatic systems, as well as their bio-stimulatory effects on plant growth. Humic substances, through their positive effects on plant nutrition and by increasing the tolerance to abiotic and biotic stress, lead to higher yields and superior quality crops. Their role in agriculture is essential, but humic subst...

The paper analyzes the frequency and trend of the rainfall amounts of the rainy periods lasting 2, 3 and 4 days, which occurred at 4 weather stations in Maramure? County, in the period 1961-2016. The homogeneity of the daily data set has been analyzed, using the methodology described by Wijngaard et al. (2003), based on Pettitt, Standard normal homogeneity, Buishand and von Neumann tests, at the 99% significance level and for the frequency analysis, HYFRAN software was used. Subsequently, the frequency of the prec...

Carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) are the most important anthropogenic greenhouse gases and their concentrations are continuously increasing. Some scientists consider that water vapor is more an enhancer than a greenhouse gas by itself, even though its concentration in the atmosphere is much higher than those of the other 3 GHGs listed above. But it is not only the concentration of a GHG that counts, but also its percentage of absorption and reemission of infrared radiation, namely its gl...

The research focused on the development and testing of the algorithm for the design of ambient air quality monitoring programs for areas affected by production, preparation and primary oil refining. This research was performed for about 100 production, preparation and primary oil refining facilities in the territory of intensive production of sulfur crude oil (Perm region, the Russian Federation) and it lasts for 4 years. During this work the levels of maximum and average ambient air pollutants concentrations in t...

City spatial development is strongly connected with the transport systems development. One of the spatial structure model type could determine implementation of the ecofriendly transport, whilst the other could affect against of the sustainable transport system. We consider three spatial development of the city models: linear city, radiant city and grid city. The article presents analysis of each city models, taking into account the implementation of the ecofriendly transport system modes and impact on the transpo...

The analysis of the correlations between the specified characters (29 characters) along with the analysis of the variety classification for different characters involved in drought tolerance can provide information on the possibility of using varieties noted for a certain character in improving the tolerance to drought of another variety, where that determination was detected as a selection indicator. The correlation between the stem length ratio to 20% PEG versus the control stem length after 15 days and the loss...

Honey, produced by honeybees (Apis mellifera) through nectar plants processing, has a distinct composition depending on the floral sources, regional and climatic conditions. Heavy metals in honey are of interest mainly for quality control and nutritional aspect along with the estimation of the potential environmental contamination. In order to estimate the impact of air pollution on the honey quality, the level of some selected heavy metals such as lead, cadmium, chromium, iron, zinc and manganese in honey was ass...

Air quality is a challenging environmental issue in coastal areas where population and economic activities such as tourism, industry, ship and port activities are heavily concentrated. Air pollution levels vary depending on the emission sources (traffic, industry, energy production etc.) and on the atmospheric processes. Depending on their source and interactions with other components of the air, they can have different chemical compositions and health impacts. The understanding of the relationship of the pollutan...

The geographical location of Lech Walesa Airport was described in relation to the country and the nearest city. Its most important elements as well as, main users have been characterized. The approach systems have been analyzed in terms of the manner of operation and the constraints associated with meteorological conditions for landing operations at the selected airport. Based on the collected climatic data from 2000-2016, using the graphs, atmospheric analysis of the selected airport was made. The METAR (METeorol...

In the paper, results of experimental research on parameters of ambient O2/N2 separation process, as well as their influence on energy consumption of the process are presented. On the basis of the experimental investigation, computational analysis of O2/N2 separation process of a membrane working in a cascade system with lack of gas recirculation is performed, concerning especially its applicability in oxy-combustion power technology and others. The NM-BO2A polymer membrane by UBE is used for experimental phase of...

The small combustion devices in the municipalities are significant element of the air pollution, especially in the winter season. Currently, there is increasing a choice of the alternative sources of heating and biomass combustion. However, even in these combustion processes are fine particles formed, which affects human health. The paper is focused on the issue of biomass combustion processes in the laboratory conditions, where was monitored the concentration and distribution of particles ( < PM10) with using of ...

The methane is one of important of GHG emissions gas from Latvia agricultural sector. There are two main sources of methane emissions: first enteric fermentation and second manure management. One of GHG mitigation measure is livestock feeding system improvement and food additive development with GHG reduction effect. The aim of this study was to evaluate inulin impact on methane and carbon dioxide balance in Holstein Friesian crossbreed calves rumen. Fifty days old Holstein Friesian crossbreed calves were divided ...

The geographical location of Szczecin-Goleni?w Airport was described in relation to the country and the nearest city. Its most important elements as well as main users have been characterized. The approach systems have been analyzed in terms of the manner of operation and the constraints associated with meteorological conditions for landing, operating at the selected airport. Based on the collected climatic data from 2000-2016, using the graphs made, atmospheric analysis of the selected airport was made. The METAR...

The concrete bridges are inseparable part of the traffic infrastructure not only in Slovakia. The real bridge structures are affected by environmental conditions in which they are. The environmental loads cause the degradation of concrete and reinforcement in time. The corrosion of reinforcing steel in concrete due to severe environment is the phenomenon that highly affects the reliability and durability of reinforced concrete bridge structures. The diagnostic of real state of existing bridges is very important du...

The temperature of air exerts a huge impact on the life of man and his natural surroundings. Especially, the influence of air temperature is visible in terrains which are less urbanized or in rural areas, where agriculture is a dominant sphere of human activity. The aim of this paper is to present and describe the possibility of using synoptic data for the designation of surface temperature for the town of D?blin. The D?blin city is located in the Ryki district in Lubelskie Voivodeship of south-eastern Poland. Aro...

Based on the recent forecasts in the IoT (Internet of Things) market, it is expected an increase in the adoption of cloud resources and deployment of internet-based technologies and processes. Smart Health is one of the key industries which has already embraced the IoT paradigm. In this paper, we will describe a remote sensing solution which connects environmental sensing - meteorological data, air quality measurements, with physiological parameters gathered through a range of intelligent wearable devices. The pur...

The paper presents a neural network based methodology for prediction and optimization of internal combustion engine vehicles' fuel consumption, as a way to reduce air pollution. As it is well demonstrated lately, the engine fuel burning is one of the main factors that generate air pollution. Its impact on environment is rapidly increasing, following the increase of vehicles numbers. The best solution to reduce the air pollution is to use electric motor driven vehicles but these are still very expensive, with a low...

The problem of optimization of design and regime parameters of PSA unit?s operation with regard to an economic criterion (total costs, profit, etc.) and fulfillment of design and technologicalechnologicalechnological echnologicalechnologicalechnologicalechnological constraints on the process (purity of the concentrated gas (hydrogen, oxygen), on PSA unit capacity, energy- and resource-saving, etc.) is formulated and solved. The problem?s formulation takes into account: 1) the uncertainty (inaccuracy) of the initia...

We performed seismoacoustic and magnetic investigations of samples taken from Lake Bolshoe Miassovo (Chelyabinsk region, Russia) in 2018. Before sampling, seismoacoustic investigations were conducted in order to study stratification in sediments, reconstruct the reservoir?s history and select core locations with undisturbed stratification. A special hydraulic corer was used for taking long core samples. Five cores up to 5 meters long were obtained. For laboratory investigations, all cores have been cut into smalle...

The development of measures to improve the transport networks of cities require studying the patterns of changes in their main parameters of traffic flows after the implementation of these activities. Investments in urban transportation networks should base on accurate methods of assessing the changes in the social-economic and ecological performance of transportation networks, due to the factors affecting them. The development of such methods is possible basing on patterns of changes in the characteristics of roa...

Snow cover is of greatest interest for geoecological studies due to the fact that it accumulates a complex of pollutants from natural and anthropogenic sources over a long period. Control and modeling of marker compounds in the snow cover are particularly interesting because marker compounds are toxic on the one hand, and on the other hand they allow to identify anthropogenic pollution pathways and ways of transformation. Polycyclic aromatic hydrocarbons (PAHs) belong to such compounds. The article presents the re...

The paper presents the need for the purification of polluted air from the highly polluting processing technology of an industrial shop. (paint shops, foundries, welding constructions, forging, etc.). Practical realization elements of ultrasonic filter and finite element modeling of the vibratory disk used in air purification system are shortly described. Besides these, advantages of using ultrasounds in the pollutant air filtration and purification process and an ultrasonic filter designed are presented. The main ...

On the present paper we want to highlight the evolution of the main crops in terms of cultivated areas and the yields obtained in the center of Banat [6] and also the harvest loses produced by endemic diseases for the most important crops. The area where we collect data was on the territory of Sagu, S?nandrei and Bucov?? settlements, all located in the center of the Western Planin of Romania. These diseases are endemic because they are produced by pathogens which are present in this region on the same crops each y...

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...

In the polluted area with emissions from Zlatna metallurgical plant, more than 50,000 ha of agricultural and forestry land has been affected by pollution over a time period of 200 years. Approximately 5,000 ha from these lands were severe and extremely polluted. The vegetation was completely destroyed on more than 2,000 ha, leading to intense erosion processes. The forest vegetal cover was completely destroyed, and the trees had some dry branches, spots on leaves, bark burns and even completely destroyed, the oak ...

Romania has realized that potential risks arising from anthropogenic activities with a possible significant impact on human health, soil quality, groundwater and surface water. Therefore concerns for soil protection, sustainable use of its conservation and restoration capacity where possible / necessary to its fulfillment as many functions show a significant upward trend. In the process of harmonizing national policies with the European Union policies and transposing and implementing EU rules and regulations, the ...

The paper deals with the damage of the concrete surface by defreezing chemical agents. The first part of research is oriented to composition, design of concrete and test of fresh (slump test, bulk density of fresh concrete) and hardened concrete (compressive strength, bulk density of hardened concrete). The second part is oriented to test of concrete surface resistance against the effect of defreezing chemical substances. Two protective coatings were used. Tests were performed on samples without coating and on sam...

In Latvia, according to Central Statistical Bureau data (2018), the agricultural industry employed 76.4 thou. employees in the main job as well as 49.4 thou. seasonal workers. For this reason, this industry plays an essential role in the national economy, and with the industry developing, labour-saving technologies are increasingly introduced to reduce manual work in agriculture. Besides, mineral fertilisers and plant protection products are intensively applied (organic farms are an exception) in order to increase...

Recently, satellite monitoring has recognized a wide use in estimating ecological situations in vast areas, including ice cover layer; monitoring the negative effects of earthquakes, volcanic eruptions, landslides, mudflows and much more. Drought is one of the negative natural phenomena, which in its extreme forms can lead to life losses and substantial property damage. Satellite monitoring can be used to observe the change in lake coastline due to drought and predict the directions of further changes. The paper p...

In this study we did complex investigations sediments of lake Maloe Miassovo (Chelyabinsk region, Russia). Seismic explorations allowed characterized the sedimentation mass and find the best sites for core samples collection. Four core samples collection were taken with the use of hydraulical core extractor. The maximum core length was 5.08 m. For investigations in laboratory all cores divided into samples, step of cutting is 2 cm. The magnetic properties of lake sediments were studied on the basis of magneto-mine...