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Cannabis consumption in Romania has increased significantly recently. Due to the fact that consumption is forbidden, consumers try to grow the plant themselves, in makeshift greenhouses. Cannabis is the most consumed drug in Romania, both in the general population and in the school population. Cannabis also remains the most widely seized drug nationally. Police discover at least once a month, illegal productions in apartments and confiscate hundreds of kilograms of cannabis. Only about a third of 16-year-old adole...

The use of renewable energy sources as an alternative to fossil fuels is increasingly present worldwide. In this context, Romania has committed to increasing the share of solar energy at the national level. This is in line with the European Union's concerns about energy efficiency. The lowland and low hills of the southern and south-eastern parts of the country are the most suitable for such an approach. So is the south part of Prahova county, mainly in the plain unit, which occupies the southern third. Prahova Co...

The chemical composition of 122 samples of snow cover (collected during 2018-2020) was measured for the representative points of the Almaty agglomeration (AA). Mean values of acidity show the absence of large-scale processes of acidification of snowfall over the study area. The analysis of the temporal variations of these parameters indicates their relative stability. The high values of suspended solids are characteristic of the mountainous territory, the Almaty city, including in the area of large highways. The c...

The paper considers the structural and tectonic position of the mineralisation in the case of the Achisai ore district. Formation of lead and zinc ores at the Achisai deposit was conditioned by regeneration of stratified ore clusters as a result of tectonic or tectonic-magmatic activation. Therefore, the structural-tectonic control of mineralisation of the Achisai type is one of the cardinal ones, along with the lithologic-stratigraphic one. The lead and zinc mineralisation is confined to side parts of synclines, ...

The most emerging technologies for climate change mitigation are Carbon Capture and Storage (CCS), Carbon Capture, Utilization and Storage (CCUS). Some countries have been developing CCS and CCUS projects and they are at different stages of deployment at the moment. Despite signing of the international agreements on climate change mitigation, Russia does not provide development of CCS technologies and their deployment. Considering long-term development of such technologies, its major objective is to increase publi...

The article considers theoretical basis for determining cost-effective methods of increasing the supply of oil. Describe the major characteristics of social production, improvement of production organization, the most important factors of production for the oil industry. We discuss the main characteristics of the deposits, the volume of oil reserves, its quality and costs to receive it. The growth of oil production provides indicators of technical and economic efficiency for the fields and measures to increase oil...

Rare metal deposits, spatially and genetically associated with leucocratic and alaskite granites of the Permian age, are confined to their dome parts and apophyses. According to researchers, the formation temperatures of granitoid intrusions are determined within 890-7500C. The actual data indicate that the formation of these deposits is greatlyinfluenced by conductive heat flow from the cooling ore-bearing intrusive massif,leading to redistribution of temperatures in the near-intrusive space, resulting inemergenc...

The use of geo-information technologies is the main distinctive feature of modern economy. Currently, the level of privatization of domestic agriculture is of serious concern. Effective agricultural production is based on information on exact areas of fields which are under agricultural crops and negative erosion processes. The cartographic material, which is usually used for organizing agricultural production, loses its relevance over time, the reason for this is the growth of a gully-beam network, closed waterlo...

The structure of the Romanian Western Black Sea shelf has been studied before 1970 and described in publications that serve today as an important point of reference in the structural geology and geotectonic studies. After the year 2005, a new set of gravimetric data has been acquired by the Romanian National Institute of Marine Geology and Geoecology, that has been obtained by compiling over 13.400 km of profile measurements on the Romanian and Bulgarian offshore. By combining this newer data with an analysis on t...

The post-industrial transformation of the world economy, globalization and increased geopolitical competition, primarily for scarce natural resources, require a fundamentally new methodological justification of national natural resource and subsurface management in Russia. At present we need to solve very difficult task: to restore and strengthen the main sectors of the economy. One of the ways to solve this problem is to ensure rational use of mineral resources and improve the efficiency of enterprises in the min...

Paper analyses the principles and industrial applications of thermoelectric generators and energy harvesting devices in their almost 200-year history, e.g. from first documented application in 1840 till the current applications focusing on thermoelectric generators using waste heat from fireplace furnaces. Moreover, the energy harvesting devices as low power applications are involved in the paper. Applying the thermoelectric generators into existing products gives the managers an ability to innovate, be unique and...

Nowadays, steel constructions and their elements are used for their properties. One of their advantages is, for example, their low weight in comparison with their load capacity. Also, quick assembly is one of their advantages. On the other hand, there are disadvantages which are associated with changes of properties under thermal stress. There are no significant changes up to a temperature of 350°C, but steel loses their load capacity between 500-700 °C [1], [2]. Because of that, in many cases these constructions ...

Currently, a lot of environmental problems are related to the development of the city. The relevance of this work is due to the population growing awareness of reaching a critical point of the negative impact of the environment on human life. In the course of the study, sociological information about the population perception of the current environmental situation in the city was collected, summarized and critically analyzed, and the population readiness to participate in solving environmental problems by organizi...

The monitoring of ecological state of the Crimean coast is the great environmental importance. The aim of the work was to determine the concentration of total petroleum hydrocarbons (TPH) in the water column of the Azov-Black Sea coastal waters of the Crimea. It could be the first stage of planning and conducting of regular studies, as well as providing information on their content in the studied region in the spring season. The amount of TPH in water was determined by IR-spectrometry. The analysis of their conten...

In order to ensure economic development and respect of the principle of sustainability, the European Union has introduced a number of innovations in the legal framework and thus provided a large amount of money to modernize the economy. The benefits brought by the new economic model (circular economy) are reflected in the reduction of harmful effects on the environment, increased resource productivity, job creation, reduced dependence on raw material imports, increased competitiveness of the economy and encouragin...

The article considers various factors contributing to the development of tourism in the Arctic zone of the Russian Federation (AZRF). On the example of the Murmansk region, the indicators of tourist flow, as well as the impact of tourism on the economy and, accordingly, on the sustainable development of the region, are analyzed. Problems of sustainable development at the regional level were studied in the Kirov-Apatity district of the Murmansk region, where the scientific base of the geographical faculty of Moscow...

The Tyrkanda gold-bearing region is located in the South-East part of Yakutia within the Aldan Precambrian granulite-gneiss region and the Tyrkanda area of Mesozoic magmatism and gold mineralization of Aldan-Stanovoy shield. Despite the long history of development of gold placer deposits in the area, primary sources for some of them have not yet been founded and are not characterized. The typochemical and morphological features of native gold from placers of Tyrkanda gold-bearing region, in particular r. Bolshaya ...

The article focuses on basic socioeconomic and sanitary-epidemiologic parameters as well as parameters that characterize population health in RF regions. The research goal was to search for reasons that could potentially explain short life expectancy in some RF regions via combining similar territories into groups according to selected parameters. The authors applied a specific statistic procedure for data processing, cluster analysis; it allowed distributing RF regions into 4 clusters where analyzed determinants ...

The UNESCO Convention on the Protection of the Underwater Cultural Heritage, adopted on 2 November 2001 is an international treaty aims to saving the underwater cultural heritage. Romania have joined the UNESCO Convention on the protection of the underwater cultural heritage in July 2007. The Western Black Sea shelf has been defined entirely as an archaeological site. Based on complex geological, sedimentological, stratigraphic studies and determinations of absolute age [2, 6] it was argued the existence of a cycl...

This work is devoted to the review of methods for mapping the area of seismic exploration using UAVs. When planning seismic surveys, obtaining a digital terrain model (DTM) and a digital surface model (DSM) for the polygon is a mandatory procedure. The resulting models can be a source of critical information. Obtaining data on the relief and terrain surface with aerial vehicle, today is carried out using aerial photography and laser scanning. Obtaining data on the relief and terrain surface with aerial vehicles, t...

The problem considered in this paper is the need to step up the methodological and informational support for improving the environmental and economic efficiency and sustainability of natural resource management in the Kamchatka territory (Russia) and the adjacent marine areas of the Pacific Ocean. The object of the research is the natural resource potential of the research area. The subject of research includes: clarification of the composition, structure and system relationships of the main natural resource poten...

Volodarsk deposit of complex ilmenite-magnetite-apatite ores is located within the ore field of the Kalchytsk ore district of the same name. Found in the process of GSM-200, studied in the process of search and evaluation work. It is dated to the Gabro-sienite phase of the South Kalchytsk complex, the rocks of which constitute a stratified intrusion of the main composition with an area of about 103.8 sq km in the southeastern part of the Volodarsk massif. In the process of formation of intrusion as a result of fra...

The aim of this paper is to introduce a small wastewater treatment plant in the Czech Republic with a capacity of 8,311 population equivalent, which was constructed in 2004. The wastewater treatment plant is designed as a mechanical-biological treatment plant with nitrification, denitrification and aerobic sludge stabilization. The activation reactors are controlled by a dissolved oxygen concentration probe. For the time being, the ammonia nitrogen and nitrate probe is only used for current concentration overview....

The Azov Sea is one of the shallowest inland reservoirs in Eurasia. The special physical and geographical location of that object determines the temporal variation of its hydrological and hydrochemical characteristics. One of the main features of the sea is the presence of run-off and surging phenomena, determined by water exchange with the Black Sea and the river flow, small area and shallow water body. The currents are considered as significant factors for many processes of matter and energy transport in the Azo...

The Sea of Azov is characterized not only by small sizes and depths for oceanic waters, but also by intensive water exchange with river waters and the waters of the Black sea. These features of the reservoir are superimposed by wind activity, which contributes to the formation of wind surges phenomena. Under their influence, the upper layer of bottom sediments is agitated, accompanied by the transition of previously deposited material into the water column. After the wind action is weakened, the reverse flow of re...

In this study, a procedure was developed for the synthesis of WO3-containing catalysts based on zeolites of the ZSM-5 type. Zeolites with different Si/Al ratios and different numbers of acid sites were used: ZSM-5-CVM, ZSM-5-CVN and ZSM-5-Acros. The synthesized catalysts were characterized and tested in the reaction of the conversion of fructose and glucose to 5-hydroxymethylfurfural and levulinic acid. It was shown that the introduction of tungsten (VI) oxide into the composition of ZSM-5 leads to a noticeable in...

In this paper we present a case study on the identification and contouring of a gas deposit, placed mainly in Pontian formations. This study is based on some geological landmarks as well as the interpretation of filtered gravimetric and magnetometric data. The gas deposits determine minimum gravimetric anomalies, under the specific geological conditions of the Transylvanian Basin. Such gravimetric minimum is determined on the one hand by the rise of the salt, and on the other hand by the mass deficit within the sa...

As an effect of globalization on natural resources demand, the need for an increasingly detailed knowledge of the geological structure of a territory and of the characteristics of these resources have also emerged. This has been the context when the administrative boundaries and the specific national policies and legislation have differentiated the current knowledge of a geological unit. For the authors of this paper, the western part of Romania is the most recent case studies where the harmonization of Romanian g...

Small and medium-sized enterprises (SMEs) use energy consulting as an important instrument for reducing information deficits when investigating savings potentials and measures for improving enterprises? energy efficiency. Since 2012, Germany has implemented a government support program to help cover the costs of energy consulting for small and medium-sized enterprises that have an energy audit carried out by a qualified consultant. This work examines the results of over 290 companies with energy balances in the pe...

Currently there is no uniform method for the economic evaluation of construction and exploitation costs of underground structures that would incorporate not only construction costs, but also costs associated with possible accidents and damage during exploitation. At the same time, we believe that in such cases costs should be evaluated in advance, because these situations often result in catastrophes with incredibly high liquidation costs. In this paper our method for evaluation of costs of underground constructio...

In this paper will be indicated the different behaviour of buildings in Bucharest, mistakes in design and execution, state of codes and regulations in the XXth century, revealing what went wrong. Several national and international research programs were done in the past to understand the causes for the Vrancea seismicity, to study the seismic wave propagation in the region and to assess seismic hazard for Bucharest and other communities. Especially in Bucharest, high-quality seismic data were acquired obtaining a ...

Forest fires occur for natural and anthropogenic reasons. In the vicinity of settlements, forest fires occur mainly as a result of human activity. The occurrence of a forest fire is characterized by the presence of a person in a forested area (anthropogenic load), the presence of ignition sources and the process of forest fuel ignition. It is important to understand how the anthropogenic load is distributed around the locality and to simulate it using computer technology. The purpose of the work is a numerical stu...

The paper focuses on interconnectedness of human and environment with rapidly rising urban space developments in Lahore ? the second largest city of Pakistan. The city has a long history of more than 2000 years. It reflects the developmental aspects of Mughal Era and remnants of British colonial rule. From 1999 to 2011 the growth rate of the city in terms of built up area has doubled. Thus, mounting a huge pressure on the city administration responsible of managing infrastructure and slum settlements. Due to rapid...

The aim of work was to evaluate the influence of the grown locality on heavy metal intake (Zn, Cu, Cr, Co, Ni, Pb and Cd) from the soil to the soybean seeds. The research was realised in five different localities of Slovakia using the same soybean cultivar (Mentor). The total content of heavy metals and their mobile forms in individual soils was compared with the limit values according to Law 220/2004 and the European Commission (2006). In all soil samples the determined total content of Cd and in one locality als...

In the NW part of the Romania, there are geological conditions that allow to geothermal phenomena to manifest on the surface of the Earth. The limited exploitation of this energy resource is still limited by existing technologies and by the high cost of deep-water equipment. For a good image of the Romania's geothermal potential, we present, in our paper, the temperature map at 3000 m deep and the geothermal flow map on the surface. These maps were made with the Surfer program, based on the data obtained through d...

During the last years, under Schlumberger brand, several methods have been refined for determining detailed characteristics of geological formations, as they are necessary in the assessment of shale gas potential based on drilling core investigations, wells diagraphies investigations, seismic investigations, and combination of all these. The correct determination of lithofacies of the cores leads to a quality diagnosis of shales reservoirs. The accurate mineralogy input is obtained by Litho Scanner in the sCore li...

The article focusses on ageing cycling infrastructure and issues of sustainability from the perspective of pavement management system and economic implications. Light cycling paths pavements are well suited to bear non-motorised traffic without suffering plastic deformations. Given that draining is maintained and adjacent vegetation is regularly cut, these pavements can perform well for very long periods. That said, the pavements still succumb to climatic effects acting on the pavement?s surfacing. Chemical proper...

Romanian economy is based, to a certain extent, on chemical industry and its approximately 300 SEVESO operators present on its territory. This situation implies numerous transports of raw materials or final products between operators in the chemical industry and/or other economic entities. A considerable number of cargos may consist in actual shipments of hazardous materials (HAZMAT), fact that can lead to an important issue: in Romania, a developing country, the current road transport infrastructure for dangerous...

The article presents standard and alternative methods of managing sewage sludge and the biodegradable fraction of municipal waste. The work focuses on sewage sludge and bio-waste not contaminated with heavy metals. The absence of the abovementioned impurities enables their processing that they can become a valuable product with high fertilizer value. In the work, special emphasis was placed on techniques similar to natural, i.e. composting and vermicomposting. These two methods are most widely described because th...

The main purpose of this study was to evaluate the capacity of an activated zeolite for ammonium removal in fixed-bed column. The influence of process parameters, such as activated natural zeolite quantity (1 - 6 g) and ammonium initial concentration (10 - 70 mg/L) was investigated. The experimental results were analyzed using the most common sorption kinetic models, such as Thomas, Adam-Bohart, as well Clark, by linear regression analysis in order to characterize the removal process. The obtained values showed th...

This paper presents a cross-sectional analysis of the noise inside the engine room of a commercial ship that navigates a section of the Romanian Danube segment. The noises of river ships are heard inside the ship by the crew as well as by the passengers, but also on the outside of the ship by the aquatic and riverside fauna. Determinations took place on a 6-bar pusher ship for 3 days, on the Danube, between 17 and 19 February 2018, on the route Braila (170 km) - Calarasi (km 365). On average, were made about 100 k...

The onshore field X is located in the Getic Basin of Romania, 100 km far from Bucharest. This 15km by 2km field was discovered by exploration department in the 1951 year. Following drilling of down-dip appraisal wells from 1951-1952, this field was established as one of the largest oil field in the Getic Basin, with more than 250 wells drilled. Based on the oil production, an Integrated Reservoir Study have been developed in 2019, in order to find new development opportunities for remaining oil in place. The wells...

The geological modeling is an actively developing area of petroleum geoscience. One of the limiting factors for geological modeling is the processing of input data, which is a routine process and can be automatized. The paper describes the screening for an effective approach and development of the workflow allowing automatical depth matching of well logs with the use of statistical methods of data analysis basing on the real set of wells. The purpose of this work is to study the machine learning algorithms applica...

Climate change and assessment of potential impacts to reduce it is one of the most pressing and priority issues on the agenda of the international community. Developing environmental assessment of alternative energy sources based on life cycle assessment (LCA) is a way to assess climate risks, because it contains the potential of global warming, and therefore allows calculating the carbon footprint of any energy source. However, to properly assess the environmental impacts of alternative energy source it is also i...

A survey carried out in October 2018 on Cricovului Sarat Valley, along a distance of about 5 km that crossed the Gornet-Cricov commune revealed few ecological aspects of this Subcarpathian area located in Prahova County, Romania. We inventoried the resources of vegetation and associated invertebrates, listing the most relevant taxons that populate the river banks. So far, representatives from 15 plant families (Adoxaceae, Amaranthaceae, Apiaceae, Asteraceae, Caryophyllaceae, Euphorbiaceae, Fabaceae, Plantaginaceae...

The decrease in fuel consumption for energy production occurs mainly due to the expense of domestic hard coal. This phenomenon is beneficial due to ecological reasons as well as due to short-term economic effects. Pollution of the natural environment in Poland by industrial plants has decreased, while sulfur dioxide emission has decreased. The greatest progress was achieved in reducing dust emissions by installing electrostatic precipitators with efficiency over 95%. The least progress has been made in reducing ca...

Generally, in Romania, the management of landfills is a major concern with regard to existing circumstances. Although the percentage of recycled waste is increasing, there are still many previously built landfills that are currently in the post-management phase. The negative impact of landfills is represented by leachate built-ups, that contains heavy metals and can pollute soil, groundwater and surface waters and endanger population?s health. European waste legislation requires closure of non-compliant landfills ...

The article presents the analysis of the environmental benefits from the optimization of urban traffic flow or from the measures to alleviate slow traffic flow (congestions). The environmental benefits are evaluated by assessing the decrease in the external costs due to the reduced emissions of such pollutants as carbon dioxide, methane, carbon monoxide and nitrogen oxides. The emissions of pollutants are estimated according to the calculations of fuel consumption. To asses the potential environmental benefits, th...

The article describes the results of implementation tracer studies at one of the complex fractured-cavernous carbonate reservoir in the Republic of Tatarstan. Water injection in one well leaded to the water cut rise in one producer well then neighbor wells are insignificantly reacting on the pressure maintenance. On one hand low efficiency of water flooding in carbonates can be caused by hydrophobic properties of minerals like calcite and by heterogeneity of the void space including presence of fractures and caver...

Among the methods used in the management of municipal waste, one can distinguish, their combustion in installations for the thermal treatment of municipal waste (ITPOK). The advantage of this method implemented in modern installations is the reduction of the mass and volume of waste with simultaneous very efficient cogeneration of heat and electricity, while minimizing emissions. One of the possibilities of including ITPOK in the implementation of the Circular Economy idea regarding raw material recovery is the us...