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Oilseed processing technologies include a sequence of intensive multiple heat treatments of seeds, oil and intermediate products. The optimization of these processes largely determines not only the price, but also the quality of the final products. Heat and mass transfer in multiphase multicomponent media are very complex. It is not yet possible to build adequate models of all processes theoretically. The thermophysical properties of the media under study change significantly with heating and changing pressure. Ne...

Heavy mineral concentrations formed in fluvial deposits present the signature of the mineral provenance and of the hydraulic sorting during transport and accumulation. The sedimentary discharge of the Danube River has been preferentially deposited due to the mineral physico-chemical properties, such as size, morphology and density, as well as local hydrodynamic factors. Besides these natural aspects, the recent modifications of the Danube and its deltaic branches are associated with a significant remodelling of th...

In the investigation of gas explosion events resulting from combustible gas leakage, often the formation of the explosive atmosphere at the location of the ignition source is less highlighted, usually being calculated the concentration of combustible gases at the entire volume affected by the explosion; depending on the distance between the gas source and the ignition, the complexity of the geometry (volumes occupied by various solid bodies) and the air currents in that volume (convective currents generated by hea...

The formation of a groundwater aquifer in a unique territory disturbed by the quarrying of a phosphorite deposit in the southwest of the Leningrad region, built up with industrial facilities for ore processing, auxiliary production, and waste storage is considered. During the quarrying of the phosphorite layer, the hydrogeological section was disturbed, the filtration and capacitive properties of the soils of the aeration zone and water-bearing rocks changed. In the zone of active quarries, during dewatering, the ...

The purpose of the paper is to implement a method which can synthesize effective data insertion procedures for structure-independent databases based on the Tentzer model. This is a universal database model, which is based on static reference relational tables, linked in a certain way at the physical data level and the logical structure is a meta structure over it. This method makes it possible to synthesize data insertion procedures for such databases, and as result two types of inhomogeneities will be eliminated ...

Putna-Vrancea Natural Park covers an area of about 30204 ha, being declared Natural Park in 2004, by the Romanian Government Decision no. 2151/2004. Putna-Vrancea Natural Park is located in the Curvature Carpathians and includes one of the wildest mountain areas in Romania, shelters many species of flora and fauna of national and international importance such as: Canis lupus, Ursus arctos, Lynx lynx, Rupicapra rupicapra, Cypripedium calceolus, Taxus baccata, Leontopodium alpinum. etc. The present study highlights ...

Arkhangelsk Oblast is a region of The Russian Federation with the most developed forest industry. Here, it used advanced timber harvesting and sawmilling technologies. Arkhangelsk Oblast has a large territory. The area of the region is 330103 km2. The population density is low and amounts approx. 1.91 people per square kilometer. At the same time, about 80% is the urban population. The remaining 20% of the population lives in areas remote from the regional center. Due to a number of circumstances, the infrastructu...

In this paper, the authors conducted information analysis of activities of Nobel brothers in the Tambov Region of Russia in order to discover and reconstruct associated memorable places. An important aspect of analysis is identification and detailing of objects suitable for virtual modeling and applying 3D modeling technologies for cultural heritage objects using an open source software platform OpenSimulator. It can be argued that in modern cultural environment there are favorable conditions for the use of virtua...

Historical ore exploitations generated mining waste with useful metal content, near Baia Mare, Romania. Central Flotation Pond (CFP) represents a secondary resource, but also a risk factor of pollution for the environment: groundwater, surface water, soil, air. CFP was inventoried by the Permanent Secretariat of the International Commission for the Protection of Danube River (ICPDR) as high risks spot in Romania with immediate effects on Somes-Tisa sub-basin, due to the content of dangerous substances: cyanide, he...

The field of Earth Sciences has always been at the border between fundamental and applied research. If the fundamental part remains the complexity and unpredictability of research on Earth and natural phenomena, development and applied innovation are anchored in society and give a norm of the impact of research for society. The SETTING project aims to coordinate a distributed infrastructure that owns and can provide data, products and services (DPS) relevant to the field of Earth Sciences, to a wide and diverse co...

Today, elimination of active pharmaceutical ingredients from environmental waters and wastewaters is becoming an increasingly topical issue. This paper describes a flow-though technology for wastewater treatment, with tetracycline used as an example of a contaminant. A standard scheme for wastewater treatment to eliminate the mentioned compound consisted in advanced oxygen processes based on ozone treatment, fenton process, sonochemical reactions and UV treatment. Currently, photocatalysis is considered the most p...

The coastal area is the field of continuous interaction of marine hydrodynamic factors with those that act on the land. Since the prehistory, human communities have settled in this area, having access to both marine and land resources, drinking water being the most important. The Black Sea level is the drainage base level to which the surface waters of its hydrographic basin flow, but it also influences the groundwater dynamics. Southern Dobrogea is a typical geologic platform unit, divided in several tectonic blo...

In this paper we present the frequency ratio method, a commonly used technique for designing a landslide risk map for the Muscel catchment area, based on the quantitative association between the landslides inventory and their causative factors. The river basin of the Muscel stream is located on the right bank of the Dambovita river, in the north of the region with the same name and due to geological and geomorphological conditions, but also due to anthropogenic activity, it was and still is affected by landslides....

As a response for water losses in urban water supply networks, the pressure management has become now, one of the most effective method in order to reduce the leakage part of non-revenue water (NRW). The implementation of pressure management has as main objectives besides reducing leakage, reducing bursts frequency and extending the life of the infrastructure. Therefore, in order to improve the water distribution systems, this paper presents the advantages of pressure control and optimization for water distributio...

Soils of flat watersheds under shelterbelts and on adjacent arable lands on three areas with different climatic conditions were studied. The study area is a forest-steppe of the central part of the East European Plain (Belgorod oblast, Russia). In all areas chernozems with 60-80 cm dark-grey (reached by organic matter) part of profile (A1 + A1B), are developed. The parent materials are loess-like loams and clays. The width of all shelterbelts is 30 meters; they are oriented from south to north; the age of the shel...

Low-carbon development is an inevitable choice to solve environmental problems and achieve sustainability. The European Union set a goal to become carbon neutral by 2050 and then proposed a Carbon Border Adjustment Mechanism (CBAM) to tackle carbon leakage and enhance the effectiveness of European climate policies. The EU is Russia`s largest trading partner, so this mechanism could potentially have a significant impact on the Russian exporters of fossil fuels and carbon-intensive products and the country`s economy...

Cement concrete pavements are very specific group of the road construction due to the different traffic loads and vary time difficulties in the course of maintenance and repairs. For the design of the planed repairs the increased requirements are imposed especially in the terms of repair life time cycle. The economical evaluation shall consider not only the value of the repair itself but also the cost connected with the diversion of air traffic during the execution of the maintenance and repairs. Therefore, is hig...

The article analyzes the influence of operation on all structures downstream the stream on the water content and dryness in the stream. As area of interest was chosen the catchment of a small stream in the foothill region with a gauging station and several water structures built on this stream in the last century. Seven structures with the most significant impact were examined. Multiple reconnaissance of the terrain and structures were performed, in different time periods; the existing operational manuals of water...

The article presents the issue of scale deposits in sanitary installations. Scale contributes to improper operation of sanitary devices and leads to their degradation. Scale build-up in pipes and measuring elements results in higher water consumption due to inaccurate estimation of this resource consumption. The consequence is that devices based on process automation do not work properly due to disturbances in the actual water flow. The formation of deposits also leads to economic and ecological losses, as sanitar...

The European mining industry is an active sector. Mining operations disturb large volumes of land and produce huge quantities of waste. The tailings dams of the mining industry occupy large areas representing a huge cost in terms of operation/maintenance, health, safety, environment and economy. This paper is an overview of the possible sustainable waste management strategies that are targeted on the reuse of residues as secondary resources. Therefore, it is focused on restoring mine tailings as inert materials to...

The European mining industry is an active sector. Mining operations disturb large volumes of land and produce huge quantities of waste. The tailings dams of the mining industry occupy large areas representing a huge cost in terms of operation/maintenance, health, safety, environment and economy. This paper is an overview of the possible sustainable waste management strategies that are targeted on the reuse of residues as secondary resources. Therefore, it is focused on restoring mine tailings as inert materials to...

For the development of traffic management systems in order to optimize it, especially traffic control at intersections, it is necessary to model traffic flows and their main characteristics. The purpose of this work is to propose a methodology for creating such models, to develop algorithms that simulate the operation of traffic lights and the movement of vehicles, to develop an application that plausibly simulates traffic flows and their control. In this work, for modeling the transport system, we proposed the pr...

The seismicity of Romania is significantly affected by earthquakes produced by the Vrancea seismic source with intermediate depth events (3 shocks/century with magnitude Mw greater than 7.0). The seismic activity on the Romanian territory consists of both shallow and intermediate-depth earthquakes. The crustal seismicity is moderate and more scattered in comparison with the intermediate-depth one. The recent upgrade of the seismic network in Romania with high dynamic range velocity sensors (150 real time seismic s...

One of problems in terrain surveys in geology and archeology is sample obtaining. Among all possible complications are limits in sample volumes and masses, including possible toxicity or radioactivity and also the legal status of the samples. In his contribution, these problems are addressed by application of microsampling by surface exfoliation of geological objects and archaeologic artifacts using various tapes and subsequent analyses of the resulting samples. Among method used were both optical and electron mic...

The use of indicator methods in oil and gas field geology allows us to obtain representative quantitative information about the direction and velocity of fluid movement in the studied formations, to assess the main filtration parameters and the presence of inter-reservoir flows, as well as reliable information about the technical condition of wells. The use of indicators (tracers) is based on the injection of water (or an aqueous solution of the reagent) labeled with a stable or radioactive indicator and subsequen...

The present paper aims to investigate the opening up of the forest complex Maries -Limenaria of the island of Thassos in Greece and its environmental impacts. Firstthe study of the conditions of the forest road network of the mountain forestcomplex of Maries-Limenaria was done, then the assessment of the environmentalimpacts of the opening up of the above-mentioned complex, by investigating theintensity of the above impacts on the natural environment and the ability of theforest ecosystem to absorb these impacts o...

Traffic congestion is an important problem in transport systems. The reason for traffic jams is the growing number of vehicles. It is objective and irreparable. Many roads do not have the ability to separate at different levels and have to cross. Most intersections use traffic lights to regulate traffic. Traffic light regulation is a non-stationary, non-linear problem under conditions of uncertainty. Most traffic lights nowadays use fixed time intervals. It is necessary that traffic lights monitor traffic flows at...

Recently, there have been cases of lower durability related to concrete pavements in the transport infrastructure in the Czech Republic. One of the main causes seems to be the increased amount of alkalis in the concrete, which may not have come only from individual components or through winter maintenance. This paper describes a research activity which deals with possibilities of alkali attack from the surrounding environment. The pilot testing provides valuable information on alkalis concentrations in real condit...

The magnesium oxychloride cement (MOC) as an alternative to commonly used Portland cement (PC) has been intensively studied in the past decade. Compared to PC it is more environmentally sustainable and it can be considered as CO2-neutral due to the low calcination temperature of the raw materials and its ability to absorb CO2 from the atmosphere. The objective of this paper was to develop a composite material based on MOC, containing partially oxidized multi-walled carbon nanotubes (partially oxidized MWCNTs) in o...

Measurements of high water in rivers are an important element of all collected stream discharge information. It is necessary to have such information in real time during floods because of the danger caused by inundations. Another aspect is the relatively large discharge volume of high water compared to medium and low flow periods. On the other hand, measuring the river discharge during high water with the traditional methods with propeller or floats is often constrained by the manpower availability for that precis...

Global warming is a dangerous phenomenon caused by anthropogenic environmental pollution. Renewable energy sources (RES) contribute to minimizing CO2 emissions. At the 26th meeting of the conference of the Parties (COP26), goals to reduce net emissions were set as soon as possible. At the same time, the European Commission has set the goal of achieving zero net emissions by 2050. Thermal transformation of conventional energy carriers causes the depletion of natural resources, the formation of secondary waste, and ...

In the Arkhangelsk Region of the Russian Federation, timber industry enterprises in the logistics of transporting round timber use various types of transport: road, rail, water (barges, timber transport units). Large timber processing facilities of the region are mainly located in the city of Arkhangelsk, which is located at the mouth of the Northern Dvina River. In recent years, water transport has been increasingly used to transport raw materials (round timber) from logging sites to processing plants. For the co...

The stone industry is one of the most essential industries in the Alpine region. This research aims to evaluate the possibility of reusing secondary waste materials produced by the quarry sector as aggregates in Ultra-High-Performance Fiber Reinforced Concrete (UHPFRC). The secondary materials involved were Diabase Sand, Diabase Powder, Dolomite Sand and Dolomite Gravel from crushed stone quarries from the regions of Carinthia and Tyrol in Austria, as well as Limestone Powder from the preparation and production of...

In Oituz and Targu Ocna, the attestation of salt extraction was established during the Geto-Dacian period. The oldest written testimony dates from 1380. The mining works that serve the Trotus mine within the Tg. Ocna Salt Mine, are located in the Fetele Targului salt massif located near the town of Tg. Ocna, on the left side of the Trotus river. Currently, the Trotu? Salt Mine has 14 horizons: 2 at the Pilot mine and 12 at the Trotu? mine. The specialized 3D CANVENT program was used to establish the optimal distri...

Usually, only a part of the work capacity is spent in the professional activity, being materialized as products and services made/accomplished within the work process. However, there are also instances, in extreme cases, when total work capacity needs to be engaged, thus an important body reserve being used. Work capacity is represented by the totality of an individual’s (physical, mental, intellectual) possibilities to perform a useful activity at an optimal level of intensity and efficiency. One of the most impo...

The Istria Basin, part of Western Black Sea (WBS) represents a major tectonic unit of the Romanian Black Sea shelf, with prolific hydrocarbon bearing structures. A significant amount of exploration and development wells were drilled on this basin’s northern edge. Core and cuttings data from 12 boreholes provide important details on this basin and the WBS stratigraphy, especially for the two of the main hydrocarbons bearing deposits Upper Cretaceous and, respectively, Eocene, on which we have achieved an age interp...

The way people perceive risks determines their reactions to and engagement in public campaigns, new development projects or clean-up and remediation initiatives. Since local communities represent important stakeholders in the sustainable development of a region, their beliefs and social representations of risk are important indicators that need a careful analysis. Mining communities are of particular interest to social and environmental scientists given the long-term pollution resulting from such activities and th...

Natural zeolites having a structure with a large number of cavities allow design lightweight plasters with improved thermal insulation parameters. Focusing on the assessment of plasters’ durability, their resistance to salt damage should to be taken into consideration, especially in case of their application in repair of salt laden masonry. Although the crystallization of salts in plasters presents a serious problem, there is as yet no standard procedure for its evaluation. To predict salt damage of lime-based pla...

The aim of this work is to optimize the growth parameters of D. salina by altering nutritional factors, in order to maximize production of antioxidants and lipid fraction by the microalgae strain. For this purpose, the concentrations of different salts in the growth medium were varied. The biomass obtained was analyzed quantitatively and qualitatively in order to determine biomass concentration and bioactive compounds concentrations in respect to the growth medium composition. Pigments were extracted from the drie...

The rising global average temperature was the main topic at the 26th United Nations Climate Change conference in Glasgow during the climate summit in 2021 (COP26). The meeting aimed to reduce greenhouse gas emissions by 2030 and to discuss the transfer of funds to developing countries. The Europen Green Deal has the same goals. The European Commission aims to achieve climate neutrality by 2050. Climate change has a negative impact on environmental biodiversity, the occurrence of natural disasters, and human health...

Taking into account the sedimentation features since the last 5 decades, considerable anthropic modifications on the Danube channel are present, as the debris composition varies concerning the proportion of terrigenous minerals, lithoclasts, bioclasts and organic matter. Since the 7th decade of the last century, marked by the construction of most hydrological power plants on the Danube, Olt, Jiu, Cerna and other major rivers, a significant change of the sedimentary volume brought downstream by the Danube is assume...

An earthquake catalogue covering the seismicity on the territory of Bulgaria and adjacent lands for the period 2000-2020 is presented in the current study. In this catalogue are included events with magnitude equal to or larger than Mw ? 2.5. As a country, Bulgaria belongs to the Alpo-Hymalian seismic belt, it is also not absent of strong earthquakes. Bulgaria is an earthquake prone country taking in account that on its territory are recorded some of the strongest earthquakes from the beginning of the last century...

The forests of south-western part of Zemgale Plain in Latvia are characterized by Scots pine (Pinus sylvestris L.) stands on fertile, nutrient rich soils. The existing information about these sites suggests of the calcium carbonate rich loamy sand soils formed by moraine. The Scots pine stands in area of Tervete National Park reach age of 260 years. The oldest and biggest trees reach considerable dimensions – up to 70 cm in diameter and height of 47 m, thus exceeding the country's average indices. These are the ol...

Unfortunately, soil is a non-renewable resource that fulfills several vital functions such as food/biomass production, storage, filtration and transformation of mineral or biological substances, source of biodiversity and habitats, etc. Due to the development of industrial activities outside the localities, in many areas the soil is degraded. Among these degradation processes can be mentioned degradation of organic matter, contamination, soli salting, and erosion. This paper is dedicated to the presentation of the...

The efficient use and recycling of industrial water is a major challenge to the sustainability of the planet. Blast furnace slag is a by-product of metallurgical operations during the production of cast iron. The granulated slag is obtained by cooling in water. In this research we studied the cooling water of granulated slag generated from the process of making cast iron through the blast furnace route. The elemental analysis of granulated slag and of granulated slag stored in water was determined by X-Ray Fluores...

Waste steel slag is a major source of environmental pollution within the metallurgical industries. Metallurgical slags like blast furnace slag, ferroalloy slag, converter slag and copper slag are produced as by-products in metallurgical processes. During the production of steel, one ton of slag waste is generated per every three tons of stainless steel produced. In order to reuse waste steel slag, discharged at high temperature range (1250-1650 °C) and cooled in water, which is named as granulated slag, three diff...

To preserve and increase the biological and landscape diversity, it is necessary to have comprehensive information about the conditions and dynamics of changes in the study object, a specific local ecosystem. Nature reserves are created to restore habitats, to protect endangered species of flora and fauna, vulnerable or complex species. Particular attention should be paid to the study of wetlands, a stabilizer of the hydrological regime of ecosystems, and a shaping element of the regional climate. It is proposed t...

Inhibition of the coil-helix transition of gelatin and retardation of the gelation process of the system as a whole is an important scientific problem. The solution to this problem will make it possible to maintain the properties of gelatin solutions for a long time without changing their rheological characteristics. In this work, by the method of dynamic mechanical analysis, the dependences of the time profile of gelatin solutions depending on the concentration of 10, 13 and 16 wt.%, as well as the different diss...

The paper presents some aspects of an experimental research in which basic recipes have been designed in order to obtain innovative products to be used in construction as finishing coatings. Starting from sunflower seed shells, considered a waste rather a by-product resulting from the industry of edible sunflower oil, and also from rough sheep wool, an animal waste from the zootechnical field, and also from the specific thermal insulating characteristics of theese two waste materials, a serie of basic recipes was ...

The Romanian storage sites for CO2 geological storage are located in the Oltenia Region, in the south – western part of Romania, within a 50 km radius circle around Turceni Power Plant. This zone comprises a part of the Getic Depression and a small part of the western sector of the Moesian Platform, two of the main geological units bearing oil and gas deposits, which were explored and studied over the years. In this zone of investigation only aquifers in the Tertiary formations have been considered as potentially ...