Browse

Cultural tourism, an important component of sustainable tourism, has gained national and international recognition in recent years. Turkey, with its geographic and cultural heritage, universal cultural and natural values, and rich opportunities for visitors, has great potential for growth in cultural tourism. However, although cultural heritage is an important part of sustainable tourism, it also brings about the problem of how best to preserve cultural heritage. Vernacular, houses, which are a part of this herita...

The article presents new data on the impact of dust emissions in cement production of the Open Joint Stock Company "Yakutcement" (Yakutia, Russia) on chemical and microbiological properties and enzymatic activity of frozen forest soils in Central Yakutia. It is established that as the emission source approaches and the dust load increases, significant alkalinization of soils takes place (the pH increases in litter from 7.11 to 8.40, and in humus horizons from 7.05 to 7.75) as a result of the accumulation of free c...

In Poland the fundamental energetic material for many years is hard coal. According to draft of energy policy such state will be maintained at least until year 2050. Therefore it is necessary to carry out researches and take actions in order to limit emission of harmful products associated with production and utilization of this mineral. Nowadays, pro-ecological activities, mainly focus on development and application of technology the purest processing of coal into thermal and electrical energy. However less atten...

Environmental assessment is also the basis for the definition and management of ecological risk of anthropogenic load on the environment. The possible impact on the Bugsky estuary are presented and substantiated and solutions are proposed to reduce the anthropogenic impact on the waters of the estuary. The main element of risk analysis is to identify hazards that can lead to negative consequences. Purpose is a comparative analysis of the environmental status of surface waters on the basis of integrated indicators....

The evaluated intent of investment represents the increase of existing level of technological equipment in interested WWTP (wastewater treatment plant) so that it will handle also wastewater with high content of NEL (non-polar substances), especially of oil emulsions. The investment will be situated in the present manipulation space, which is in the interested WWTP available for possible development purposes and process intensification. Investment intent will allow better cleaning of wastewater with such a high co...

Lake water quality determines the possibility of its using for technical purposes (as a source of drinking or industrial water) and for recreational using (swimming, angling, water sports). In modern times the water quality state is deteriorating because of excessive anthropopressure. The attempts of water quality improvement are taken via technical methods implementation. In order to predict the effects of potential restoration actions the great need exists of the models development, which can help to select the ...

Forest resource is the most important natural resource. The Leningrad Region is one of the most developed subjects of the Russian Federation according to economic indicators. Logging, wood processing and timber exports are carried out in the region due to the reserves of forest resources. The consumption of forest resources should not exceed the productive natural forces. Improving forest management, ensuring rational use of forests, maintaining the ecological potential of the forest fund are essential aims. The s...

Nowadays concrete is the world?s most widely used building material. A decisive constituent is cement, which causes in production nearly 10% of the world?s CO2 emissions. Ultra High Performance Concrete (UHPC), a new high-tech concrete with an outstanding compressive strength of 4 to 6 times the strength of standard concrete (NSC), is the most advanced building material in reinforced concrete construction and increasingly used in different countries all over the world. Due to its high compressive strength, buildin...

The case study analyzed in the paper refers to a group of new buildings built near the campus of the University Politehnica of Bucharest. The University?s campus has its own cogeneration power plant equipped with two reciprocating engines using natural gas. Each engine generates 800 kWe of electricity for University?s own consumption and for selling it on electricity market. During the winter time the heat recovered from the two engines, is used within the district heating network of the University?s campus. Durin...

This paper deals with the burning of edible vegetable oils. Their primary use is in the field of food preparation, but they are increasingly being used as a basic raw material for biodiesel production. Four types of oils were used for the measurements: canola, sunflower, olive and pistachio. All samples were tested on a cone calorimeter using an initiator source at an external heat flux with a density of 35 kW.m-2. Time to initiation and termination of burning, as well as parameters characterizing the released hea...

The research claims that carbonate reservoirs are different from terrigenous one with the ability significantly to improve the filtration and capacitive properties under the influence of hydrochloric acid solutions. Acidic compositions, containing not only the hydrochloric acid, but also various kinds of additives, such as demulsifiers, dispersants, stabilizers (converters) of iron and many others. They are usually selected by experience in practice. Its main function is to simplify the extraction of the oil emuls...

One of the main worldwide issues today is represented by the need of protecting the environment and human health. This requires prevention and monitoring the pollutant contamination of the environment and food products. Toxic heavy metals may accumulate in plant tissues and inhibit most physiological processes at all metabolism levels. They inhibit growth, photosynthesis, water uptake and nitrate assimilation. Romania is a resourceful country and a number of energy and mineral resources can be found on its territo...

The Outer Carpathians contain organic-rich rocks, deposited in the basins belonging to the Tethys realm during Jurassic-Late Cretaceous and to the Paratethys realm during Oligocene times. The Alpine Tethys developed during the Early-Middle Jurassic times. The Aalenian-Lower Bajocian dark shales of the Skrzypny Formation and Upper Cretaceous-Paleocene Ropianka Formation were deposited in this realm. The Protosilesian Basin, which constitutes the northern part of the Western Tethys, developed as back-arc basin north...

There is an increased concern about the constantly mounting amounts of sewage sludge due to different factors, in particular population growth and urbanization. Therefore, besides common sewage sludge disposal, innovative solutions are required, such as by energy recovery. The present research aimed at evaluation of the energy potential of sewage sludge from a Romanian municipal wastewater treatment plant. A viable and sustainable solution for the removal of sludge is the "transfer" of this so-called waste, in pel...

Active mining operations in range of gaining raw material have very negative impact on the natural environment. Long-term observations proved that mining exploitation causes very significant changes in natural environment, in the region in which it is conducted. Particularly, this is applies to underground exploitation of hard coal. Underground exploitation and associated coal production cause that a lot of post-mining wastes are formed. These wastes for several years of exploitation in Poland were deposited in po...

The article presents the results of investigations into the chemical composition, contents of selected rare earth elements and the reaction of eluates obtained from the waste (ash and slag) produced in the process of hard coal combustion in a pulverized-fuel boiler. Samples for tests were taken from the ash and slag landfill from three 10-metre vertical profiles. The total content of REEs in the examined ash-slags ranges from 295 to 366 mg/kg. The average concentration of rare earth elements is 330 mg/kg, with a s...

In 2010, the municipality of Senigallia, located in Marche region (Italy), approved the Green Masterplan, drafted by the Department of Agricultural Sciences together with the Department of Territorial Planning of the Alma Mater Studiorum of Bologna, in collaboration with four architects, two agronomists, and few communal technicians, with the aim of granting a neat, homogeneous and sustainable development of the territory and improving the quality of life and the wellness of its inhabitants. Since then, many proje...

Phosphate removal from wastewater is necessary at sewage treatment plant before discharging into the natural streams due to many reasons especially to preserve phosphate and to avoid eutrophication. Magnetite nanoparticles stabilized on ZSM-5 zeolites were used to adsorb, remove and recover phosphate from said wastewater. Three samples namely, magnetite, magnetite@ZSM5 and ZSM-5 were used for batch adsorption experiments. Results indicated the highest phosphate removal efficiency for magnetite@ZSM-5 material. Magn...

As a member of the European Union, Romania is facing numerous challenges related to the effects of the global economic crisis involving austerity measures, the occurrence of climate changes affecting the sustainable agriculture, important changes in the dynamics of labour market, an unprecedented wave of migration - a phenomenon that, without an integrated approach, could lead to the emergence of some extreme social attitude etc. This is why, the best solutions have to be found leading to the acceleration of the e...

Sustainable use of natural resources and recycling/reuse of wastes are two of most current upcoming environmental problems, and they play an important role in the circular economy, as recycling of waste can give an important contribution to the reduction of natural resources. Ceramic tiles production is one of the industrial activities involved in using natural resources like clays and sands. On the other hand, in Italy, sanitary landfills are, nowadays, the main place, where bottom ashes are finally treated. This...

Cyclophosphamide - N,N - bis (2 - chloroethyl) - 1,3,2 ? oxazaphosphinan ? 2 -amine 2-oxide is one of the widely used drugs in cancer treatment, which presents genotoxic, carcinogenic, mutagenic and teratogenic potential. Previously reported studies proved that long time exposure to cyclophosphamide and their metabolites leads to negative effects upon the environment and human health. Therefore, there is a need for more performant treatment processes for cyclophosphamide advanced degradation from which heterogeneo...

The data recorded by the National Oceanic and Atmospheric Administration (NOAA) and the National Aeronautics and Space Administration (NASA) have led to the cataloguing of the year 2016 as the warmest year on worldwide meteorological records. The two previous records listed were the years 2014 and 2015. Phenomena like El Nino and La Nina are responsible for the cooling or heating of the upper tropical zone of the Pacific Ocean. This causes variations in global wind patterns and weather, thus leading to short-term ...

In recent years, the global economy has become increasingly interested in obtaining energy from renewable sources. This trend is mainly due to the necessity of reducing the negative environmental impact of conventional sources of energy. One of the leaders in making this change is the European Union. Energy policies and electrical systems of EU Member States are increasingly dependent on the development of renewable energy. This also translates to the energy policy of Poland as a member of the EU. In the coming ye...

Foam flooding is a promising enhanced oil recovery (EOR) method for water-flooded reservoir due to its good mobility control capability. When foam is injected into oil reservoirs, it will contact with oil, and oil will affect the performance of foam. Therefore, the effect of oil on the properties of foam has always been a key research topic for foaming flooding, but it is also a very controversial subject. Many researchers reported that the presence of oil is detrimental for foam stability, but some others believe...

Anthropogenic pollution originating e.g. from waste landfills can migrate into the ground and significantly change its properties. Moreover, the interaction between soil and pollutants may change soil behavior as well as cause geotechnical problems. The aim of the study was the assessment of the impact caused by inorganic contaminants on consistency limits (plastic limit and liquid limit) of fine-grained soils. Laboratory tests were carried out on bentonite, kaolin and clay using KCl, MgCl2 and NaCl solutions. The...

One of the main factors determining economic and social development of particular countries is availability of cheap energy source. In a case of European countries, this availability has also important influence on the integration process. Amount of produced energy in given country tells about the level of its civilizing development. Also so-called energy independence that most countries are aimed and which guarantees political independence is strictly related to this problem. It can be assumed, that energy is one...

The potential for biodegradation of chemically different dyes of six fungi and bacteria isolated from organic pollutants- and synthetic polymer-contaminated sites was determined. Standard enrichment isolation methods using low-nutrient-concentration media were used to obtain bacterial and fungal organisms from environmental samples. The isolates were taxonomically characterized using molecular analysis and Biolog identification system. The isolates included bacterial strains of Pseudomonas putida, Pseudomonas viri...

The purpose of this work was to investigate the possibility of wood preservation by its modification with different substances through the penetration method and to study the impact of the process on some operational properties of the wood material. The experiments were conducted with poplar wood (samples 10x1x1 cm), which has low density with well-developed capillary system, good absorption capacity and belongs to low operational capacities tree species. Alkaline activated hydrolysis lignin (AAHL), Cu2S and Malei...

This paper is a sequence that is part of the extensive analysis of the Danube Delta genesis. Sacalin island is a territory formed in the Black Sea, a short distance from the Romanian coast, in the south of the Saint Gheorghe branch of the Danube Delta, the main source of transport for alluviums. The history of this new territory is relatively recent. The first mention was in 1771. In 1856, Captain Thomas Spratt made a new map, in which the island of Sacalin appeared with two submerged nuclei. In 1924, Romanian res...

Form-found designs are evolving structures reflecting material and structural behaviors and environmental context by utilizing prevalent winds, radiation, and temperature. The paper applies case study analysis of free-form wooden architectural envelopes designed by Renzo Piano Building Workshop, which improve the energy performance of the buildings. The use of digitally designed and manufactured structural wood can radically reduce the amount of energy consumed by materials used in building during whole life cycle...

This work is investigation of the group composition of the bitumoids of Domanic shale deposits (Romashkino oilfield in the Volga-Ural petroleum and gas Basin). The samples were taken from different depths for this well. X-ray diffraction analysis revealed that the productive deposits are carbonate reservoirs consist of 92 wt% calcite. The extracted kerogen is of type II according to the Van Crevelin diagram, based on the ratio (H / C) and (O / C). It was found that the objects of the study differ in the mass conte...

Innovation management has to support the principal strategic factors that can guarantee successful innovative strategies, therefore the role of organizational transformations has a central leading position and is interconnected with the corporations? biotechnology. The impact of strategic innovation management is profoundly established in the revolutionary organization of global competitiveness, consequently corporations have to project incorporated biotechnological techniques that are flexible and adaptable to dy...

Liquefied Natural Gas (LNG) is stored in cryogenic tanks at receiving terminals. During the LNG storage some part of LNG evaporates into gas phase. Evaporated LNG is called Boil off Gas (BOG). Heat flow has an influence on evaporation process. It indicates continuous boil-off of small fraction of LNG due to heat flow from the ambient air through tank insulation. Vaporization process causes changes in the composition of stored LNG. Increased vaporization process may negatively affect the stability and safety of the...

The aim of the paper is evaluation of the influence of the additives of reclaimed asphalt pavement (RAP) and manufacture waste asphalt shingles (MWAS) on the chosen properties of asphalt concrete mixture. Laboratory tests were performed on the asphalt concrete samples with additive of 20% RAS and 1% WMAS. The scope of the study included the following tests: stiffness modulus at three temperatures (5°C, 15°C and 30°C), indirect tensile strength in dry and wet conditions, fatigue properties, and resistance to low te...

Increasing the possibilities to utilize fly ashes from power stations is one of the major strategic directions involved in the implementation of the waste directive imposed by the European Parliament, enabling the protection of natural resources and a reduction of the amount of waste stored. Investigations into fly ashes from power stations indicate such waste contains rare earth elements (REEs) in much higher amounts than their average content in earth?s crust. It has resulted in an increased interest in the util...

Vulnerability is an assessment of priorities for implementation in a city. It is imperative to determine vulnerable regions in the city to identify priority areas that may require immediate intervention. Nowadays, several methods used for national, international and local level vulnerability assessment are based on remote sensing and GIS technology. In this research aim to determine the vulnerability of Moscow city using a geospatial based vulnerability index for sustainable development of the city. We use urbaniz...

In the article results of experimental studies concerning the influence of the humidity of gas on CO2 separation of gas mixture CO2/ N2 simulating the exhaust fumes were presented. . In the paper special attention was drawn to the identification of influence and the initial analysis of selected parameters of the performance of polymer membrane on carbon dioxide from the mixture CO2/N2 of relative humidity 100% separation process. In these research the membrane UMS A2 by UBE was used, on which research using only t...

In the 20th century, giant reserves of natural gas were discovered, intensive construction of main gas pipelines began, and effective technologies for liquefying and transporting natural gas in a reduced state appeared. This led to the fact that in the first decade of the 21st century the share of natural gas in the world energy balance increased significantly. The developed and well-established transportation system and modern fuel and energy equipment allow the delivery of natural gas to almost any place on the ...

Depositions of the Domanic type in the territory of Tatarstan are stratigraphically associated with carbonate-siliceous deposits of the Upper Devonian part of the section. These deposits, enriched with organic matter, are characterized by the ability to generate liquid and gaseous hydrocarbons and accumulate them in the form of deposits of unconventional type. In this paper, the results of geochemical studies of rock samples from the depth interval 1705-1728 m of the Semi-Bug-Buregian deposits of the Berezovskaya ...

Nowadays, green technologies and agri-environment measures play a vital role for sustainable development. Taking into consideration that more than a half of the Romanian land is farmed, agriculture is very important for the Romanian natural environment. The aim of this paper is to provide a detailed picture of the Romanian agri-environment measures and to outline the importance of agri-environmental protection for sustainability of agricultural systems, habitats, and rural area. In this paper, we included a docume...

Mallorca is the largest of Balearic Islands in the Western Mediterranean Sea and is a rapidly growing international tourism destination. The sustainability of this island is highly dependent on critical resources ? availability of potable water, the amount of which is limited due to natural conditions. The pre-historic Stone and Bronze Age cultures in the Eastern part of Mallorca were studied, mainly in the surroundings of Artas and Porto Crist. It was established that the number of the monuments? remains is much ...

Ocimum basilicum L. (Lamiaceae) is a spice plant frequently cultivated in Romania with application in food flavoring and preservation, pharmaceutical products and alternative medicine. The purpose of this study was to determine the chemical composition and antioxidant effectiveness of the essential oil of Ocimum basilicum grown in Romania. The basil inflorescences (fresh plant material) was used for the extraction of essential oil. The essential oil was isolated with a yield of 0.52% (v/m) by steam distillation. G...

In structural engineering of various reconstructions, it is very often necessary to monitor the stress level in the structure. Measurement of strain is then used to analyse additional load effects for which the structures were not designed. Such tasks are particularly challenging in-situ, where the measuring system is exposed to extreme conditions that are vastly different compared to the laboratory setting. The proper choice of sensors is necessary in order to achieve relevant results, but the quality of the desi...

Compositional reservoir simulation runs involve, among others, the solution of the phase behavior of the hydrocarbon fluid phases at each block and at each time step. This iterative, high CPU time demanding calculation renders history matching and production optimization as extremely time consuming tasks. This paper presents a review of the available methods for speeding up the conventional phase behavior computations during compositional simulation Emphasis is given to the fluid-specific soft computing models whi...

The article presents the exposure of forestry activities in the most deforested counties of Romania ? Suceava County. We have conducted a local economic research based on the forestry activities from that county. The database used in this research consists from the National Classification of the Economic Activities, codes at 4-digit level for each territorial administrative unit. The article focuses on the particular situation from the deforested communes: C?rlibaba, Poiana Stampei, Iacobeni. It also presents the ...

The present investigation was done to assess cytomorphologic and cell cycle parameters as indicators of genotoxicity as it is a simpler method and could be suggested for rapid screening of the vast range of agrochemicals used all over the world. The excessive and indiscriminate use of agrochemicals is responsible for increasing the level of pollutants in the soil environment resulting in cellular and molecular damage to the plants. Topas 100EC is a widely employed foliar fungicide for horticultural applications. A...

This paper investigates a theoretical aspect of application of partial correlation functions in hydrological system analysis. The functioning of hydrological system is simulated with the conceptual mathematical model consisting of series of linear reservoirs where the inputs are synthetic time series representing rainfall on catchment and the resulting output time series represents the discharge from spring. The partial correlation functions are calculated for the input and output time series describing specific h...

Russia has a significant bio-energy potential and a large fund of land resources, so there is no competition between the cultivation of bio-energetic crops with basic food ones, as in case of the EU countries. There is a steady trend of further growth of bio-energetic crop?s agroclimatic potential under condition of European part of Russia through the expansion of the agricultural zone to the north and east due to global climate change and the pressing in the agricultural turnover temporarily unused and fallow lan...

Noxious agents released into the atmosphere that can cause harmful effects on human health and environment are often in the form of a complex of toxic substances in which both solid and gas particles are present. Polluting elements do not remain at the sources where they are produced, but due to influential factors, they are propagated to significant distances. Assessment of pollutant dispersion in the atmosphere is performed using mathematical dispersion models. This study presents the assessment of the impact of...

Economic development in recent decades has made environmental protection not only a local but also global problem. This approach is currently the basis of operation in this aspect in European Union. The eco-friendly business attitude should not, however, result from the fulfillment of statutory obligations, but from the activities that go after the accepted standards. Creating an environment-friendly, modern company image becomes a current times challenge and build a positive climate for its development. One of th...