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The goal of this paper is to highlight problems of development modern approaches to design the ecological innovation systems on different levels of organization. There is investigation the role of environmental innovations in solving some ecological and economic problems for providing ecological safety and sustainable development. The functional model of the environmental innovation system has been developed. This model is based on system approach and analysis of innovation process. The unified structure of the gl...

The Black Sea is the largest marine anoxic basin in the world, connected with the Mediterranean through the Bosporus Strait, Marmara Sea and Dardanelles Strait. During global ocean low-stands, the Black Sea basin was isolated from the Mediterranean evolving as a fresh-brackish giant water body. In the Late Pliocene ? Pleistocene times, the Black Sea experienced periodic influxes of water from the Caspian Sea through the Manych Corridor. These hydrological changes that occurred in the Black Sea basin had greatly in...

Operations conducted by petroleum industry generate a whole range of drilling waste materials. In oil & gas industry, the most common wastes consist of used oil or water-based drilling fluids, bore dusts, and cuttings. The chemical composition of drilling waste and its toxicity depend primarily on the geological and technological conditions of drilling, the type of drilled rock deposits, type and composition of the spent drilling mud and also on solids control equipment. Sustainable waste management became one of ...

Here we report immobilization of GOx on magnetic silica: (i) nanoparticles Fe3O4 with silica coating (Fe3O4-SiO2) and (ii) mesoporous silica with incorporated nanoparticles Fe3O4 (SiO2-Fe3O4) functionalized with amino groups using glutaraldehyde as a linker. Magnetic support based biocatalysts demonstrate high catalytic activity in D-glucose oxidation to D-gluconic acid at pH 5-7.5 and temperature of 30-50?C with the best activities of 95% and 94% for SiO2-Fe3O4-GOx and Fe3O4-SiO2-GOx, respectively. A comparison o...

The article discusses the various ways in which environmental factors influence socioeconomic welfare of individuals in the regions of Russian Federation, with an in-depth look at the regions of Ural Federal District. We use regression analysis to examine the mechanisms of direct influence that environmental factors have on individual welfare indicators, healthcare, social and economic welfare modules, and, finally, on the composite welfare index. We then examine the indirect influence of environmental factors, ma...

There are 15 sites with large deep landslides on Moscow territory. Recently, several of them have been activated, in some cases directly related to human activities. Deep landslides represent the major hazard to urban infrastructure. They have a complex mechanism of development, have a huge mass, and cause big problems in implementation of protection measures. The regularities of the mechanism of deep block landslides are considered in the article. Various points of view on the mechanism of development of deep blo...

Karst poljes represent depressions created in territories made up of limestone and dolomite rocks. Generally, in Albania the karst poljes have multiple origin, thus they have a polygenetic character due to the active activity of tectonics faults, river activity and in some cases of the significant influence of glaciation during the Quaternary period. These shapes are of different sizes, the range of hundreds of meters to several kilometers, while the bottom is flat and with small topographic contrasts. Large-scale...

The article provides current data on the metallogeny of gold in the western part of the Altai-Sayan metallogenic province (southern Siberia), one of the oldest mining regions of Russia. The need in generalization of numerous geological, geophysical, geochemical and metallogenic data, forecast and revelation for new types of overlapping gold mineralization is relevant. The scheme of metallogenic zoning is given. Metallogenic subprovinces and zones are identified, and their geological structure and metallogenic spec...

The water quality assessment on chemical and biological indicators of the Kuibyshev reservoir (Middle Volga, Russia) and the rivers ? tributaries of 1 and 2 orders was carried out. Based on the results of hydrobiological research, modal intervals of the total number of zoobenthos were calculated, as well as the proportion of oligochaetes in the community and the Woodiwiss index. The Woodiwiss index was used as the indicator of water quality on the base of characteristics of benthos community. The method of redunda...

Generational conflicts exist because of different needs, goals and values, as well as differences in the expected outcome. Over the course of the century, work has become a means of challenge, while humanity has evolved from a generation of goods to a hyperconsumer society. The purpose of this study is to analyze ways of resolving conflicts for X and Y generation employees to identify differences and understand possible ways to compromise decision making. The tasks of the study are to evaluate these generational d...

The aim of the study was to determine the Cu and Pb content in soil profiles in relation to main responsible factors in vertical distribution: type of soil, pH and mineralogical composition. Were exanimate 34 soil profiles from the industrial area of Craiova City. For each profile was collected bulk samples at different depths (40, 100, 150, 200 and 300 cm). The analytical techniques employed for the investigation of soil and rock samples were Atomic Absorption Spectrometry (AAS) for determination of heavy metals ...

The cause of the explosion is the thermal energy delivered by the flammable/ fuel ignition source. The action of the ignition source on the flammable medium can be direct or indirect. The most common of the direct sources of ignition are open flames and electric and mechanical sparks. These sources release their energy into the environment, which, if it contains flammable substances in appropriate proportions, is initiated. This is followed by a chain of fuel oxidation reactions and by the propagation of a flame f...

Despite preventive measures, it is not possible to fully eliminate natural disasters, damages and other undesired events. These may have such negative impacts that might turn into a crisis situation. Provided the crisis situation occurs, it is necessary to have an effective system and tools of crisis management. The activity of crisis management represents the solution to the crisis situation using specific principles, procedures and methods aiming at overcoming or minimizing the negative impacts and renewing part...

The main idea of this paper is to develop a multi-agent system, integrating advanced control algorithms and acting scenarios, for optimizing energy management in an intelligent microgrid. In order to achieve this objective, it is proposed a flexible intelligent tool based on multi-agents, able to give alternatives for action to prosumers, through a specialized interface. In this respect, firstly are presented aspects related to the multi- agents (MAS) integration in smart grids? control. In the second part the wor...

Unglazed transpired solar collectors (UTC) are simple and effective devices for applications such air heating, induced ventilation, crop drying etc. A numerical model for typical unglazed transpired collector is proposed with blackened plate exposed to the sun and circular holes on square pitch arrangement in no wind working conditions. The steady-state conservation of mass equation, momentum and energy equations were considered in order compute the air pressure and velocities, flow pattern and the total air heati...

The issue of renewable energy represents an extremely important topic, both as regards Romania, as well as at a worldwide level. From this perspective, this work presents an analysis tool for the investment opportunities in this sector. On the other hand, it tends to clarify some issues related to the concept of renewable energy. From this perspective, the objective of this paper is to conduct a study through which an analysis will be presented related to the wind action on the wind turbines located in the Fantane...

Because of the limited resources of water and increasing demand for it, solutions for wastewater recycling and reuse have become of great interest. Wastewater can be recycled for the same purpose or can be reused for other purpose, but first it must to be treated. In this paper some scenarios of using Sequential Batch Reactors treatment of wastewater were investigated with the purpose of reusing or recycling in small-sized residences like chalets or guest houses. Simulations were done using BioWin, which is a powe...

Evaluation of explosion-proof protected electrical equipment in scope of certification is extremely important considering the risk of explosion that has to be minimized in order to ensure life safety and health of workers and to prevent damaging of property and the environment, as well as free movement of goods when they meet the essential safety requirements at European level. The purpose of this paper is to present aspects regarding the importance of thermal endurance tests performed on the electrical equipment ...

Mapping, assessment, protection and their introduction in thematic circuits are steps which, once completed, will turn the geomorphosites near Topli?a resort into benefits for tourism. Methodology consists in field research, inventorying and evaluating various geomorphosites, based on scientific and cultural values. Topli?a resort developed in the volcanic area of the Eastern Carpathians, at the entrance in Topli?a?Deda defile, underneath the volcanic calderas of the C?liman Mountains and the Northern Gurghiu Moun...

The paper deals with general aspects concerning the assessment of the roads technical condition based on the calculation of individual, combined and general performance indicators. Besides general aspects, the paper also presents a case study concerning the assessment of the technical condition on the national road section DN 18 Baia Mare ? Sighetu Marma?iei, Section E, km 52+000?km 62+000. The assessment of the technical condition on the analyzed road section was realized according to the COST 354 action of the E...

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...

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...

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...

Cogeneration is one of the current solutions for the use of secondary thermal resources consisting in the simultaneous supply of electric and thermal energy. The main advantage of cogeneration is the use of thermal energy discharged from industrial installations. The type of installation under consideration has the following advantages: it covers an extended range of electric power, simultaneously provides electricity and thermal energy in hard-to-reach areas, and reduces the thermal impact by upgrading the therma...

Since 2016 in the Peoples? Friendship University of Russia (RUDN-University) is carried out a project on the environmental monitoring of campus. We consider the campus as a social significant territory: currently, the ?population? (staff and students) is over 8,000 but the technogenic pressure is constantly increasing from year to the year because of transport activity. At the moment, the information about acoustic pressure, soil, snow and air pollution has been gathered and processed. It allows to develop the sch...

Appropriate protection of the environment, as well as of the most vulnerable environmental factor, water, is impossible without the achievement of a civilization's progress in all its aspects (economic, social, etc.). Also, the lack of adequate economic support may lead to the impossibility of carrying out actions to protect and conserve water resources. Activities from eastern part of the Jiu Valley, constituted as integrated parts of economic growth and development, invariably degrade, through the specificity of...

Renewable-energy sources are considered to be the energy that is collected from sources that may be regenerated in a lifetime. The renewable-energy sources branch out in five types: wind power, hydropower, solar energy, geothermal energy and bio energy. However, in this paper, we are analyzing the water, solar and wind, since those three are the most exploited in Romania. Wind power refers to produce electric power, by mechanical powered generators when air flows through wind turbines. Alternatively, to fossil fue...

This study examined the spatial relations of the selected metals in stream sediments tributary of the Oltet River in longitudinal profile, along the entire length (185 km) in relation to geology, lithology and anthropogenic activities. Differences in regional geology from the northern to the southern of the Oltet River Basin are reflected in stream sediment geochemistry. The Olte? River crossing crystalline formations belonging to the Danubian Domain represented by metamorphic rocks (schist, gneisses, mica-schiste...

There have occurred significant changes in the world political stage over the last more than 20 years. Events of the recent decades have changed territory, economic, social, natural resource and environmental situation in Russia. Nowadays up to 70% of territory of the Russian Federation, nearly half of northern land areas of the globe are regarded as territory of the nordic region and the Arctic region. The notion ?Arctic region? (?Arctic zone?) has no distinct definition, it is frequently equated with the notion ...

Multifunctional motor vehicles are equipped with one or more working mechanisms actuated by hydrostatic drive systems, which consume most of the power installed on such vehicles in which the primary mechanical energy is generated by an internal combustion engine, usually Diesel engine. Given the large number of daily running hours, (of multifunctional motor vehicles) the energy consumed by working mechanisms becomes important, the same goes for the expenses, and therefore it is required to be used with maximum eff...

Drilling fluid significantly affects all technological operations in the process of deposit drilling and completion. The main task done by the drilling fluid is providing proper drilling and cleaning of the hole bottom from cuttings as well equilibration of the rock mass pressure, cooling and cleaning the drill bits. Moreover the drilling fluid should minimize the damage to the permeability of productive deposits in the near-well zone and maintain stability of the wellbore walls. For providing the correct protecti...

Romania has an important rail network, of public use, consisting of about 10764 km of railway, some of which are affected by instability phenomena. Although the percentage of areas affected by instability in the entire network is insignificant, railway sections have some peculiarities, any difference in the order of the centrimetres appearing at the upper level of the rail can lead to the closing of the line, with important financial consequnce. The surface, affected by the instability phenomen was about 4,000m2, ...

Murmansk region is a most dynamically developing region of the Arctic Zone of the Russian Federation, which combines many conflicts in the types of nature use by various maritime sectors, with a negative impact on fragile Arctic ecosystems. The existing Russian and international experience in the application of the concept of marine spatial planning (MSP) was analyzed in terms of its application for the Russian Arctic and the current state and prospects of the socio-economic development of maritime complex was stu...

Methane and carbon dioxide are among the most active of greenhouse gases that contribute to climate change. Anthropogenic sources have a significant share of their emission into the atmosphere. One of the major sources of emissions of these gases can be exploration activity and operating oil&gas industry. It is associated with the possibility of uncontrolled migration of reservoir gases in the course of work consisting of geological exploration and recognition of hydrocarbon deposits by drilling. In connection wit...

Lately, high penetration of intermittent renewable energy sources into power systems requires, besides efficient technologies employment, developing adequate control strategies to improve their performance. Given that their operation flexibility is constrained by short timeframe of foresight, energy storage systems represent an attractive solution that can mitigate the natural variability of renewable power plants electricity output, providing therefore enhanced quality of supply. The nonlinearity and uncertainty ...

The integration of a building into the environment can be achieved both from the architectural point of view and from the point of view of the used building materials, thus remarking material used since ancient times, namely wood. Wood is an organic, sustainable, environmentally friendly material that can reduce carbon dioxide emissions Due to the latest environmental protection requirements, economic issues related to construction costs and architectural diversity, it has been necessary to develop technologies re...

The concept of a ?passive House? has been introduced for the first time in Germany, subsequently being extended and at higher latitudes and different features climatic from those of Germany, in the south, west and south-west of Europe. Passive building has been defined by Wolfgang Feist, Passivhaus Institut, as being the building that demand for heating must not be more than 15 kWh/m? year, and total consumption of primary energy should not be more than 120 kWh/m? year. In this paper we strive to study at the conc...

For produce electricity from solar energy, it would be necessary for an inverter to convert the continuu current (DC) into alternating current (AC). The inverter is the cause of problems affecting the stability of the power supply system because it is a switching device used to adjust the AC frequency as required. At the same time, it can cause harmonics that result in waveform distortions and affect electronic devices that receive energy. Then it could cause malfunction of the electronic device. In this paper, we...

The recovery factor of gas reservoirs is highly dependent on various factors such as the type of drive mechanism, the initial reservoir pressure and the abandonment pressure. A higher attention is required to enhance gas recovery from reservoirs associated with water influx. Exploitation of this type of reservoirs represents a challenge for production operators in the sense that they have to find viable technical and economic solutions in order to increase the gas recovery of reserves. The selection process for th...

In recent years, bio-economics and alternative energy sources have become increasingly important in the economic environment of the European Union. The reasons for this development are not only environmental, but also economic benefits. The Union is seeking to increase investment in alternative energy sources, thereby promoting sustainable development, new jobs and the circular economy. Alternative energy sources, also known as renewable energy are inexhaustible sources of energy that do not pollute the environmen...

Background: The role of reporting on non-financial data and Corporate Social Responsibility (CSR) is constantly growing. Environmental information is of great importance for this information. There are no proposals for methods of obtaining this information using the existing accounting information system. For this purpose, the author proposes to use the pro-ecological value chain, which then can be a good ?base? in generating management environmental reports. Methods: The author used literature analysis in the fie...

To improve the technology of opening and development of oil fields for increasing the completeness of subsoil use, the prospects of using the electric pulse method of drilling are discussed. Validated the concept of creating an electric pulse tunnel system based on submersible source of high-voltage pulses with controllable formation of work space for increasing its maneuverability and creating special technological outputs in a rock mass for forming a cluster of slant and horizontal boreholes with most complete c...

Magnetic nanoparticles (MNPs) of iron oxides are increasingly used in many laboratory and medical applications such as hyperthermia, magnetic resonance imaging or magnetic drug delivery. Popular in medical applications are magnetite (Fe3O4) and maghenite (?-Fe2O3) nanoparticles. They have gained a great interest because of their low toxicity, biocompatibility, simple separation methodology, and low cost of production. A novel magnetic hydrogel adsorbent based on gellan gum and Fe3O4 (GG/Fe3O4) was synthesized and ...

Research institutions and academia play an important role in developing new methods for disaster management and advancing the state-of-the art in risk reduction. In the case of natural disaster studies, fundamental research and theoretical approaches can be directed towards the development of new tools and technologies with direct applicability in the management of emergency situations and in risk mitigation. What needs to be considered by all those actors who can contribute to strengthening the response capacity ...

The study aims to present the interspecific relationships between fish and cormorants from Comana Pond and Putu-Greci ponds. Also, it is presented the dynamic of the ichtyofauna, during 2011-2017 years, in Comana Nature Park, on the watercourses of the Neajlov River, Comana Pond or Neajlov Delta, Gurbanu River and Putu-Greci Ponds. The Comana Pond, with area of 1200 hectares, in 2011 suffered a major intervention on the habitat characteristic of wetland, namely an ecological reconstruction, by constructing a low-r...

Surface geochemical method is an important technique in petroleum exploration. The purpose of this method is to record and analyze the distribution of micro-concentration of gaseous hydrocarbons, which migrate from subsurface accumulations to the near-surface zone. The paper presents the results of surface geochemical survey carried out in the area of the Mo?odycz gas deposit of the Carpathian Foredeep. A soil-gas geochemical survey was carried out along the six sampling lines corresponding to the seismic section....

This year, for the first time in Latvia, the government will adopt a set of standards that will regulate social entrepreneurship and its goals. Social entrepreneurship means balancing social goals and the commercial component for which money is not the direct goal but rather a means of achieving social goals. The social aspect should not only target the surrounding community, but also ensure responsible and correct treatment of employees. A leader in a social enterprise has to put an end to the controlling style o...

The main purpose of this study is to highlight the actual state of energy production and consumption in Romania and to emphasize where there is potential for either reducing the greenhouse gas emissions by using more efficient heating and cooling systems for buildings or reducing the greenhouse gas emissions by using less fossil fuels and more renewable energy sources that can be tapped in Romania. In Romania despite a good thermal insulation degree for newly constructed buildings in the past 5-10 years there is s...

Since ancient times, the coastal areas were natural habitats that host a wide variety of fauna and flora species and which, from an anthropological point of view, are the most populated areas of the planet. At the same time, these areas, which include deltas, lagoons and marshlands, are particularly vulnerable to the effects of global change (climate modification, sea level rise and fluctuation of sediment input) that may be triggered by anthropogenic activities (global warming due to greenhouse gases produced dur...

Environmental monitoring systems in the cities existing in modern cities allow to control the state of natural (technogenic-natural) systems according to their programs. But it is not possible to receive an information for some special locations despite their significance ? this is a case of the RUDN-University campus. For these purposes an initiative group organized a special monitoring project for the campus. One part of these monitoring program is a control of the soil air quality. This is a one of the most rep...