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Natural disturbance regimes play key roles in shaping forest structure and development at stand and landscape levels. Disturbances are complex and variable, such that classical dichotomous characterization of disturbance regimes as following large infrequent disturbances or patch dynamics is too simplistic, especially when the resulting damage is more severe than the baseline of a single tree patch dynamic, but not severe enough to represent large infrequent disturbance. Ongoing climate change affects mountain Pic...

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...

Energy policy of the European Union aims to move towards the sustainable and green energetics, therefore, identification and exploitation of renewable energy resources is of high importance in all EU member states. One of the types of renewable energy production is cogeneration of heat and power from biomass. Cogeneration becomes more and more topical in the Baltic States as various kinds of biomass, e.g., forestry and agriculture residues, cultivated plants for biomass are rather easy obtainable. For example, in ...

It is well-known that earthquakes do not consider boundaries and Bulgaria is also subjected to seismic impacts from earthquake sources located in the neighbouring countries, i.e. outside its territory. Without doubt the actual impact from these sources on our built environment is to be taken into account by our engineers and planners. This could be done properly if only based on instrumental records of real events and after assessment of their characteristics. The effect of Vrancea quakes on our territory is rathe...

The cementing of wellbores is of the utmost importance at each stage of the drilling jobs. Regardless the conditions in the well, the aim of the cementing job is to efficiently seal the annular space between the casing and the wellbore wall, and to liquidate absorptive zones and also the flow of fluids in the annulus. The properly performed cementing job guarantees successful and safe exploitation of the well. A correctly performed cementing job in a borehole depends on the design of the borehole, geologic-reservo...

Nowadays, issues related to intellectual capital, its valuation and management are becoming a significant strategic problem. The nature of the modern market excludes practically the possibility of completely omitting this element in management processes. Building market advantage requires more and more intensive recourse to intangible assets. Traditional forms of doing business in many areas do not bring the expected results. The main problem associated with intellectual capital hindering its wider application in ...

Mineral processing products must be verified in order to develop highly effective technology of enrichment. At every stage of mineral processing - improvement is possible through monitoring and verification of the components of processes. Process control is possible, among others, through comprehensive mineralogical analyzes of ores and products of their processing. Automated mineralogy based on scanning electron microscopy technique, like QEMSCANВ® or MLA, gives opportunity to obtain complex data in a relatively ...

The discovery of Bakyrchik gold-sulfide black shale deposit was in 1953. It is situated in Western Kalba metallogenic zone, originated in late Paleozoic age as a separated line between palaeocontinents of Kazakhstan and Altai-Mongol. The Bakyrchik deposit has acicular arsenopyrite and arsenical pyrite containing micron-size (2-5 ?m) gold inclusions. It is large gold reserve (280 tons) in black shales of northern east Kazakhstan. The gold is associated with acicular arsenopyrite, lesser extent of pyrite. The sulfid...

The use of biomass as a renewable fuel for production of heat and electricity is regarded as a key to reduce fossil fuel dependency, and thereby to reduce net CO2 emissions. Fluidized bed (FB) technology is widely accepted as the most energy efficient process for thermal conversion of biomass. One of the often-mentioned drawbacks is the building up of agglomerates within the process because of bed material-ash interaction. To avoid unplanned operational stops due to agglomeration, bed material is continuously repl...

Cabernet Sauvignon variety is one of the most widespread grapes varieties for winemaking grown in Romania. By application of clonal selection, five clones of Cabernet Sauvignon have been obtained and omologated in Romania. The present study aimed to characterize the quality of wines obtained from three Cabernet Sauvignon clones, namely Cabernet Sauvignon 30 Vl., 131 St. and 54 Mn. in the Valea Calugareasca viticultural area, considering the extension of their culture and market potential. The experiments were carr...

Cabernet Sauvignon variety is one of the most widespread grapes varieties for winemaking grown in Romania. By application of clonal selection, five clones of Cabernet Sauvignon have been obtained and omologated in Romania. The present study aimed to characterize the quality of wines obtained from three Cabernet Sauvignon clones, namely Cabernet Sauvignon 30 Vl., 131 St. and 54 Mn. in the Valea Calugareasca viticultural area, considering the extension of their culture and market potential. The experiments were carr...

According to FAO, the Food and Agriculture Organization of the United Nations, global annual charcoal production amounts to 52 million metric tons. Around half of the population in South America depends on forest-sourced resources (firewood, charcoal) to cover their basic energy needs, and in some countries large-scale industrial charcoal usage is further common, e.g. in Brazil in the production of pig iron for steel. To limit adverse impacts on forest health, sustainability of charcoal production merits high atte...

New Russian Integrated Pollution Prevention and Control (IPPC) legislation has come into forth at the beginning of 2018. In 2015-2017, 51 Information and Technical Reference Books on Best Available Techniques (BREFs) had been developed and officially approved. About 6,500 installations of various sectors had been registered as IPPC (or Category I) installations. In 2019-2025, all of them will be obliged to demonstrate compliance with requirements of Best Available Techniques (BATs) set by respective sector BREFs a...

Biochar attracts high scientific and practical interest because of several specific properties such as high sorption potential, fertilizing properties and ability to sequester carbon. In the present study, fertilizing properties of biochar made of chicken manure using different peak temperatures (2h at 300-700 ?C) in the rotating experimental 200L biomass pyrolysis plant were investigated. The following parameters were analyzed: content of biogenic elements (C, N, P, K), porosity and micromorphology, toxicity for ...

The undesired effects generated by the usage of synthetic antioxidants in foodstuffs increase the interest of food producers and customers in the finding of new food additives of natural origin. The chemical composition and antioxidant potentials of Anethum graveolens L. essential oil of were investigated in this study. The isolation of essential oil was conducted by steam distillation with a yield of 1.83% (v/m). The material used for extraction was dill seeds (natural dried product). Gas chromatography coupled w...

The undesired effects generated by the usage of synthetic antioxidants in foodstuffs increase the interest of food producers and customers in the finding of new food additives of natural origin. The chemical composition and antioxidant potentials of Anethum graveolens L. essential oil of were investigated in this study. The isolation of essential oil was conducted by steam distillation with a yield of 1.83% (v/m). The material used for extraction was dill seeds (natural dried product). Gas chromatography coupled w...

Oregano, (Origanumvulgare), known in our country as bumblebee or marjoram, belonging to the Lamiaceae family and is used as spice or medicinal plant. This study was conducted to evaluate the chemical composition, antifungal and antioxidant properties of Origanumvulgare plant and oil.The chemical composition of Origanumvulgareplant samples were performed using the official AOAC methods in the laboratories of the Interdisciplinary Research Platform of BUASVM from Timisoara. Alcoholic extracts of Origanumvulgareplant...

Oregano, (Origanumvulgare), known in our country as bumblebee or marjoram, belonging to the Lamiaceae family and is used as spice or medicinal plant. This study was conducted to evaluate the chemical composition, antifungal and antioxidant properties of Origanumvulgare plant and oil.The chemical composition of Origanumvulgareplant samples were performed using the official AOAC methods in the laboratories of the Interdisciplinary Research Platform of BUASVM from Timisoara. Alcoholic extracts of Origanumvulgareplant...

Gas hydrates have been represented as a promise technology for many of applications, as gas mixtures separation, CO2 capture, transportation, and sequestration, transport and storage of methane, and seawater desalination. Reduction of onset temperature/time for hydrate formation and increasing the hydrate growth rate are very critical for these applications. In this study for the first time we want to introduce the application of gelatin as a cheap, biodegradable, sustainable and effective promoter for methane hyd...

New efficient ways of processing mineral raw materials are one of the determinants of scientific and technological progress. In recent years, there has been a tendency to reduce the metal content and complicate the mineral composition of processed ore raw materials, and increase requirements for environmental protection. All this leads to a rise in the cost of mining and extraction of useful components. The ever-growing demand for metals leads to the need to use poor ore, deposits lying at great depths, dumps of m...

Chernozem soil-type forms 11% of the agricultural land fund in the Czech Republic. It is located in the driest and warmest regions of the Czech Republic. It occurs up to an altitude of 300 m a. s. l. with an average annual temperature of 8 В°C and an annual precipitation of 450 - 650 mm. The very thick humus horizon was formed by the accumulation of humus under the steppe or forest-steppe vegetation. In the Czech Republic, such land is exclusively used for agricultural purposes. Therefore, its character of steppe ...

Global issues such as resource scarcity, climate change, land and ocean pollution linked to the widespread growth model of production and consumption have led to the introduction of many concepts and approaches such as 'sustainable development' and 'green growth', and etc. It is also a circular economy, and it has many similarities to these concepts and approaches that deal with the relationship between people and their environment. However, it has distinctive use and, in principle, has more radical consequences t...

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 paper deals with burning processes, combustible materials and materials. Each fire is accompanied by combustion processes that depend on combustion conditions, in particular the presence of flammable substances and materials, oxidant and source of initiation. Fire is burning spreading uncontrollably in time and space. Fever represents a set of exothermic physicochemical events, in which the redox reactions occurring in the release of a considerable amount of thermal and light energy, at the same time release f...

The purpose of this paper is to determine the rate of methane (explosive gas) and of carbon dioxide (asphyxiating gas) in the mine workings of Dej salt mine. In Romania there are six salt mines which exploit the salt through underground mine workings: Dej salt mine, Tg. Ocna salt mine, Slanic Prahova salt mine, Ocnele Mari salt mine, Cacica salt mine, and Praid salt mine. The purpose of the present paper work is to establish the methane release (explosive gas) and the carbon dioxide release regime in mine workings...

This study reviews the problem of creating an algorithm for classifying objects in a Grid system, which will allow the automation of this process to proceed. Splitting objects into classes allows you to effectively manage the resources and processes that occur in a distributed system. Classification according to the current values of characteristics, by reference values of characteristics, with an analysis of the original causes of the result and also a modeled classification is considered. The problem of determin...

It is well documented that the interlayer space of clay minerals, notably smectites (e.g., montmorillonite), can be intercalated with wide variety of inorganic cations or organic cations through ion exchange reactions or using other physical and chemical means of interaction. When the modification of smectite is performed with organic cations, their properties change from hydrophilic to hydrophobic. Therefore, the resulting materials become efficient sorbents of organic contaminants in wastewater, e.g., as sorbing...

Forests are the national wealth of Latvia that is to be preserved and multiplied to meet the ecological, economic and social needs of society. Latvian residents with the forest has always linked the economic, cultural and emotional bonds that have developed over centuries. Forest performs essential ecological and social functions at both national and international level, and providing adequate growing and cutting stock measurements, we can estimate different growth factor influence. Historically this data delivere...

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...

Soils can be defined as four dimensional natural bodies, where the lithosphere, the atmosphere, the hydrosphere and the biosphere are soil ? forming factors which operate in geological time. The soil profile reflects the climate change passed during soil ? forming process. The majority actual soils are the result of a polyphasic soil development, therefore they involve in their age the climate existing in the Tertiary, especially in the Quaternary, period. Climate change is expected to have several effects on soil...

Climate change is reflected in the horizontal and vertical structure of vegetation cover, species composition, and bio-productivity changes as well as on the changes of carbon cycles. Landscape studies and revealing of climate changes in different landscapes are especially relevant for the countries/regions that on the one hand stand forward with high natural potential, on the other hand keen ecological problems distinguishes them. Among them is Samtkhe-Javakheti ? one of the region of Georgia. The research is bas...

Carbon capture storage (CCS) technology is expected to help reduce the anthropogenic carbon dioxide emissions, however, application requires finding the rock formations with sufficiently large storage capacities. Water-bearing formation allow to store a high-volume CO2. Nevertheless, the assessment of the capacity of aquifers structures remains a problem. In this work reservoir simulation was developed to estimate CO2-storage capacity because it allowed to take into account the effect of heterogeneity in an aquife...

The study of coagulation behaviour of bentonite clay suspensions is presented in this paper. Experimental results were obtained by investigation of several chemical and physical properties of two bentonite suspensions. The study included several measurements such as particle size distributions, chemical and phase analysis of prepared suspensions, as well as preparation of sedimentation graphs and the relationship between concentration of the suspension and turbidity. The results of this research could help in dete...

Source water for water treatment plants can contain various mechanical and biological impurities and it is required to remove them, before the water can be used. In order to eliminate most of the solid pollutants coagulation process is commonly employed. Process of coagulation is efficient in the case of hard to settle and colloidal particles, which are usually present in water, but it is important to know what kind of pollutants are present in the suspension in order to find out the best possible solution. This p...

The effect of coke formation on the pore structure and permeability in the process of the in-situ upgrading of heavy oil under supercritical condition has attracted more and more attention. Studying coke formation induced by thermal treatment is currently an important task for selecting the optimum upgrading technologies for heavy and extra-heavy oils. This research is intended to evaluate coke formation through the process of aquathermolysis in the condition of superheated steam injection. In this study, upgradin...

The investigated cold spring (10.4-10.9 ?C) is located onto a reverse fault zone within the Subcarpathian nappe (Vrancea region). A small travertine deposit has precipitated along the stream. The spring-water samples display an essentially calcium-bicarbonate chemical facies, indicative of a prevalently meteoric water contribution. Still significant Na and Cl concentrations - each of them amounting, when expressed as miliequivalents, to about one third of the HCO3 concentration - also suggest mixing with a signifi...

One of the directions of the rational use of the secondary raw materials of meat industry, including collagen-containing, is its modification in order to obtain protein products enriched with micronutrients for the further use in food production. The presence of active carboxyl end groups in the collagen molecule and complex spatial structure cause the complexation of this protein with various minor nutrients, thereby promoting the creation of a biologically active composite for the enrichment of meat products. Th...

One of the directions of the rational use of the secondary raw materials of meat industry, including collagen-containing, is its modification in order to obtain protein products enriched with micronutrients for the further use in food production. The presence of active carboxyl end groups in the collagen molecule and complex spatial structure cause the complexation of this protein with various minor nutrients, thereby promoting the creation of a biologically active composite for the enrichment of meat products. Th...

The main problems faced by any city at present are: reduction of natural resources, environmental degradation, increased carbon dioxide, demographic and social changes associated with the urbanization and population growth phenomenon as well as increased frequency and size of floods urban.Stormwater collection is a strategy for adapting to climate change. This strategy has been applied by many civilizations in the history of mankind, pluvial water collection systems have met, for the first time, in areas with long...

Pyrolysis is considered as an effective and alternative way to treat organic waste and to obtain pyrolysis fuels as well as biochar. The latter may be used for different purposes in industry and agriculture, including use as a long term fertilizer. Biochar, after pyrolysis, is obtained in the form of powder; however from practical point of view it is better to use pelleted or granulated biochar since it significantly enhances biochar?s filed distribution. In our study we compared the efficacy of granulated and pow...

Pyrolysis is considered as an effective and alternative way to treat organic waste and to obtain pyrolysis fuels as well as biochar. The latter may be used for different purposes in industry and agriculture, including use as a long term fertilizer. Biochar, after pyrolysis, is obtained in the form of powder; however from practical point of view it is better to use pelleted or granulated biochar since it significantly enhances biochar?s filed distribution. In our study we compared the efficacy of granulated and pow...

The use of colored asphalt pavements plays an important role in answering the environment requirements, the operational aspects and visibility and road safety requirements. In this context, the paper deals with the possibilities of realizing colored asphalt mixtures corroborated with the ordinary tests to determine the physical and mechanical characteristics. Meanwhile, the article presents the advantages of using colored asphalt mixtures in different cases for improving road safety.

Production of electricity in power plants using steam-driven turbines represents today and will continue to remain for decades the main source of such energy, regardless of the fuel consumption type: fossil or nuclear. Even some types of power plants using renewable energy, such as solar energy, transform it first into steam energy. Considering that nowadays about 80% of total world electrical energy is produced by power plants that use steam energy, it is very important that the efficiency and reliability of esse...

During the Thirty Years? War in Europe, the Czech Lands represented one of its most frequent battlefields. In 1647, when General Wrangel led a Swedish campaign towards the central parts of the Habsburg Monarchy, a short clash between the Swedes and the Imperial army took place in Western Bohemia near to the castle of T?ebel. Previous studies of iconographic sources published in contemporary documentary writings, supplemented by field archaeological work, have shown that the Hrotek Hill near Plan? was the likely po...

This paper examines comfort and cohesion in outdoor and semi out door spaces of historical environment with a hot and dry climate using the example of the traditional streets, courtyards and recesses of Sanliurfa, Turkey. The goal of this research is to investigate the design principles for achieving comfort and social cohesion in the historical environment of Sanliurfa traditional architecture. In Sanliurfa historical settlement, where traditions and customs have an important role in the social structure, has cre...

Cogeneration, or combined heat and power production (CHP), delivers both electricity and heat simultaneously, which achieves high overall energy efficiency. Although CHP technologies are state of the art, and advantages of their adoption are well known, 70% (European Union) to 80% (worldwide) of the existing potential remains untapped. Initiatives fostering more widespread uptake of cogeneration so far often focus on large scale electricity supply schemes combined with the operation of district heating, while the ...

In the near future, all new buildings across European Union will have to meet the nearly Zero Energy Buildings requirements, namely to have a lower primary energy consumption and lower carbon dioxide emissions. In this regard, each country set its own targets concerning the reduction of these values. The paper presents a computational study regarding the thermal performances of an apartment, insulated in the first case scenario with a common solution such as expanded polystyrene and for the second and third case s...

One of the possible solutions to reduce or eliminate landfill gas emissions is to cover the landfill with bioactive cover layer, where methane is oxidized in-situ. The main innovation of the closure project at Kudjape landfill, Estonia, was to extract the < 40 mm fine fraction from the same landfill cell by using landfill mining technology in order to construct a methane degradation cover and to restore the previous landfill area for the benefit of the community. European larch (Larix decidua) and Norway spruce (P...

The present study explores the impact of natural and climatic factors on the conditions and efficiency of the activities of Russian public utility companies in the context of the theory of the economic system's adaptation to the rapid changes occurring in the natural and climatic conditions using the example of the Far North. Given the change and uncertainty in the factors of the external and internal environment for public utility companies, innovative processes in the field of management are regarded as an imman...