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-he space-time distribution of earthquakes is of substantial importance for understanding the physics of the earthquake generation process. Earthquakes can be analyzed as a time series of events that result from the released strain in the earth's crust. The study of the space-time distribution of earthquakes using statistical methods reveals many of their characteristics. Sequences of seismic events affect both spatial and time distribution of earthquakes. It is necessary to know the statistical characteristics of...

Cryogenic energy storage (CES) is a large-scale energy storage technology that stores electricity in the form of liquefied gas at cryogenic temperatures. The CES system has three sub-processes, namely, charging or liquefaction, storage, discharging or power cycle. Because the main energy costs in this system are related to the liquefaction module, we will focus on the analysis of liquefaction processes. The present work aims at performing a comparative study between cycles commonly used for the liquefaction of air...

The paper presents issues regarding uncertainty involved in the test process to ignition of small components for intrinsically safe equipment. In the first part of the paper, the classification of explosion-protected equipment is presented. In power generation and also in other industrial areas, the incidence of flammable substances is a common factor. As a consequence of this, the risk of explosion may arise. On the other hand, installations located in areas endangered by the presence of flammable substances must...

Decarbonising the EU-s energy system is crucial to reach the 2030 climate objectives and the EU-s long-term strategy of achieving carbon neutrality by 2050. Based on these Green Deal goals and the current energy situation in Europe, it is highly important to focus on biofuel energy sources. Our research deals with the behaviour of households in the Czech Republic and changes in their consumption habits in the last decades. The main goal of this paper is to evaluate the development of the consumption of biofuels by...

The studies using (14C)-labeled tea (Tea Sinensis) biomass have demonstrated that tea biomass is degraded in red (Nitisols Ferralic) and brown forest (Humic Cambisols) soils. The application of manganese sludge and manganese sulfate (MnSO4) in these soils increases the mineralization in both soil taxa evidencing an active participation of Mn ions in the degradation of phenolic substances. When applying manganese sludge and/or MnSO4 to the experimental samples, most of 14CO2 is released during the first 60 days as ...

The main objective of the paper is to analyze and evaluate what are the manifestations and impacts of suburbanization in the hinterland of the city of Presov. The first manifestations of suburbanization started in 1996 and continue even nowadays. This process brings several consequences, economic, social, demographic, environmental, etc. When looking at migration flows, Presov has shown a long-term decline in population. The municipalities located in its hinterland show an increase in population. In this paper we ...

The paper aims to analyse the main air pollutants considered responsible for most premature deaths and illnesses: particulate matter, nitrogen dioxide, sulphur dioxide, and ground-level ozone. The research methodology used is based on the analysis and synthesis of information from the scientific literature on air pollution, identification of sources of air pollutants and their implications for human health. The principal research method used in the paper is content analysis. The importance of this publication is t...

This paper presents the degree of noise pollution in Braila. Braila is a city located in southeastern Romania. For this purpose, sound level measurements were performed in various important locations in this city. The monitoring took place between November 2019 and June 2020. The measurements were performed using a professional digital acoustic sound level meter that can record sound values between 30dB-130dB. The sound level meter works with two frequency filters: -A- and -C-. -A- filter responds in the same way ...

By developing this paper, we wanted to identify the opportunities for the growth and development of the Faget area in Romania, based on the specific resources available. Geographical location, natural and anthropogenic sites, as well as existing accommodation structures provide this area a high tourist potential. Natural landscapes, recreational areas, hunting, fishing, historical monuments, wooden churches, and natural resources are the most important attractions of the Faget area that can be valorised. The autho...

The paper aims to address what types of protection can be applied to galvanic elements and batteries that are used in potentially explosive atmospheres. In order to keep electrical equipment in operation in environments with potentially explosive atmospheres under harsh conditions, including galvanic elements and batteries, a certain type of protection must be applied for safe operation. The types of protection applied to galvanic elements and batteries are made in accordance with EN 60079-0 and in compliance with...

Food security is one of the most important issues that needs to be addressed in order to achieve UN Sustainable Development Goals. Currently multiple technologies are used in conventional agricultural practices, including application of artificial intelligence and GIS. However, the technologies are rarely considered in sustainable farming practices. Organic agriculture, although gaining traction in recent times, mostly relies on traditional, rather than technologically advanced approaches. There are, however, mult...

Meat and bone meal (MBM) is considered animal waste and can no longer be used in agriculture since the onset of the disease called spongiform encephalopathy in cattle. This waste is burned and then dumped in landfills, which causes unwanted emissions to the environment. This is a real problem nowadays and we must find environmentally friendly solutions must be identified to eliminate this waste by energy recovery. For these reasons, a lot of processes have been developed to recovery the MBM, which are environmenta...

In the context of the issues discussed within, it can be noted that the main objective of this paper is related to the presentation of the European Union as one of the leading producers of green cars, whose goal is to reduce harmful emissions to protect the environment. Based on the plinth thus built, the opinion of the Bulgarian consumer on the presented European initiative should be clarified. The main objective thus launched requires the consistent clarification of the following tasks: to present the European U...

Sustainability within a region is achieved by providing a variety of services regarding the tourism products within an area. The Giurgeu basin in order to be able to sustain its values, needs to offer a wide variety of services that attract and increase the overnight stay of tourists. The services needed to be diversified with the beginning of the pandemic season of 2020 - 2022. These services existed before, but during the pandemic period, where the tourism suffered the most, it became evident that the entreprene...

The Interest in recycling of materials to reduce the CO2 emissions and reduce the energy consumption has inspirited us to investigate the influence of ferrous metallurgical solid waste material namely "slag" on the performance of traditional Portland cement composites. The scrap material was mechanically treated by crushing followed by ball milling and classification. The mechanically treated slag was mixed with Portland cement without any modification. The mix was casted into the desired moulds and allowed to sol...

The alternative way to solve the greenhouse gas emission problems is carbon dioxide (CO2) capture and utilization. CO2 hydrogenation is one of the routes to obtain valuable chemicals and fuels such as methanol. The effect of indium (In) promoter on catalytic system Cu/Zn/SBA-15 has been studied. 1%In/Cu/ZnO/SBA15 and 6%In/Cu/ZnO/SBA15 catalysts have been synthesized by impregnation method and compared with Cu/Zn/SBA-15 catalyst (the content of Cu 30 wt.% and the content of Zn 1.4 wt.%). All catalysts have been cha...

The energy community, as a new mode of citizen participation in the European renewable energy market, highlights the close connection between energy decentralisation, territorial development, and the crucial role of local authorities in doing so. In the context of territorial development and keeping within the ongoing decentralisation processes, participation and sustainability is particularly important. Also, the very idea of promoting community energy, leads to the affirmation of an innovative system of energy g...

Energy raw materials that play a crucial role in the economic development of Poland are: crude oil, natural gas as well as lignite and hard coal. The history of mining of the aforementioned raw materials have a complex and long tradition. Historically, Poland was a pioneer and a European leader in crude oil mining which now has only marginal importance in domestic demand. Currently, we are also a witnesses of a decline of hard coal mining which was the basis of the country's energy security for many years. Poland ...

The threat of climate change and its negative consequences is currently a very serious and immediate problem. Undoubtedly, the most striking manifestation of climate change is global warming, both on land and in the oceans. Increasing the average air temperature adversely affects natural ecosystems, which find it very difficult to adapt to this change. Significant consequence of climate change is also the fundamental impact on water resources. In this work we focused on the influence of climatic conditions on the ...

Research will focus on investments for the development of the company. Transition to the circular economy is understood in many cases only as an unnecessary obstacle, not as the new business model. Production based on the linear model "take, make, dispose of" is not possible anymore based on decreased environmental quality. Increased production efficiency could help promote the company's prestige, gain tax allowances, create optimistic co-operation with the state, municipality, and maintain sustainability in terms...

In recent years, the geological service of Kazakhstan has been assigned the task of searching for sites where ores would meet modern industrial requirements. It has become a matter of re-evaluation of lead-zinc deposits and of identification among them of promising non-traditional commercially genetic types. One of these is the karst type, which has the following features: high lead and zinc content, compact ore deposits, effective ore enrichment, wide development in Kazakhstan of carbonate rocks with lead-zinc mi...

In the past decades, the necessity for detailed earthquake microzonation studies was recognized for Bucharest city first because significant damage occurred here during the last major earthquakes, as well as for other densely populated cities in Romania exposed to major seismic risk due to the intermediate-depth earthquakes occurring in Vrancea zone and local site effects. Numerous studies established different approaches incorporating non-linearity analyses, which generally did not consider groundwater level chan...

Reducing the use of paper is, first and foremost, an essential factor for environmental economics and sustainability. Digital transformation is also one of the tools supporting the environmental economy, improving business efficiency and reducing costs in the following ways: reducing errors and processing times and increasing security and confidentiality. In the document on Digital Transformation Guidelines 2021-2027 (Cabinet of Ministers Order No 490 of 7 July 2021 on Digital Transformation Guidelines 2021-2027. ...

The distinction between noise and sound is mainly based on the discomfort of the latter, the noise being perceived as a negative sensation, while sounds are generally perceived as being pleasant. Noise and noise pollution are practically identical terms. Noise pollution is the exposure of humans and / or animals to sounds whose frequencies and intensities are harmful, affecting the auditory system, inducing stress or other instant or long term effects on the physical and mental health. For too recently, it has bee...

The concept of sustainable development involves economic development, social development, ecological development, political development, human development, spiritual and cultural development. All these elements pursue three fundamental objectives: smart growth - developing a knowledge and innovation-based economy, sustainable growth - promoting a more competitive and greener economy, in which resources are used more efficiently and inclusive growth - encouraging or high employment of the workforce, to ensure socia...

Environmental impact assessment is a complex scientific process that often exceeds procedural and legislative aspects. The data and information used in the EIA derive from various sources, so they must be integrated using an appropriate methodology. The established assessment methods are Rapid Impact Assessment Matrix (RIAM) and Geographic Information System (GIS), each allowing the integration of observations, data, and environmental information. The present study aims to apply RIAM and GIS to the impact assessme...

Cyclophosphamide (CP) is a cytostatic drug prescribed at large scale, which proved to induce toxic effect on ecosystems and cannot be removed by conventional wastewater treatment processes. Therefore, there is a need to test advanced degradation processes for its removal from wastewater discharges. CP photocatalytic degradation via UV-VIS irradiation was studied using a Nitrogen -doped TiO2 catalyst. The catalyst was synthesized as thin film deposited on glass substrate under nitrogen atmosphere technique. The inf...

The registration and analysis of seismic signals generated by different types of machines and vehicles are areas that, thanks to modern technological capabilities, create an opportunity to study various aspects of environmental behavior and generate timedepending loading function for civil engineering analysis. These analyses can be used in various areas of engineering research - on the one hand as a means of identifying the actuator (vehicle) and assessing its operating mode, and on the other hand - as a means of...

Biodiversity can be defined as the diversity of ecosystems, expressed as symbioses, habitats, landscapes, species diversity and genetic diversity within species, i.e. the totality of the gene pool that constitutes nature at the global level. In the current period, but especially in the last half century, there has been a steady loss of biodiversity with major consequences for the living world and severe impacts on human society. Biodiversity is a fundamental basis for human existence and humanity is itself a part ...

Wind energy has grown in popularity and concomitantly so has the installation of wind turbines. As both alternative and green sources of energy, many may assume that wind energy is replacing fossil fuels such petroleum and natural gas and leading us to a more sustainable future. While renewable energy is part of the sustainability equation, another common attribute of achieving sustainability is the localization of production and consumption. In many ways, this almost automatically occurs with wind turbines becaus...

Currently the resources of rare metals, especially Ta, Nb, Be, and Li used in high-tech industries, are of great demand in Kazakhstan and worldwide. Main Ta, Nb, Be, Li, Sn, and W deposits in the Great Altai territory are hosted by Permian granitic belts that formed during the Late Paleozoic-Early Mesozoic orogeny, in a postcollisional setting. The largest metallogenic structure of the Kalba-Narym granitoid belt accommodates many genetically different deposits and occurrences. Pegmatitic rare-metal deposits have v...

The use of Earth observation satellite data is an efficient monitoring method for the state of natural ecosystems disturbed by the development of georesources. A permanent multispectral satellite survey provides an opportunity to study the dynamics of ecological restoration by observing the changes in the spectral reflective properties of the landscape. At the same time, it is problematic to interpret the satellite observation data of the surface being in the shade during the survey, because in the absence of dire...

The number of registered cases of COVID-19 is increasing in the world, and some countries are reporting a second wave of the pandemic. Accurate and real time information about epidemiological situation is therefore urgently needed for managing decisions in the countries, regions and municipalities which are affected. Massive testing of viral presence in people’s saliva, a smear from the nose, nasopharynx and / or oropharynx, bronchial lavage water obtained by fibrobronchoscopy (bronchoalveolar lavage), as well as ...

Ceramic materials based on titania and zirconia hold much promise in modern nuclear energy applications. Such materials due to their chemical and mineralogical similarity to nature-derived minerals may be used as matrices for radioactive waste immobilization as well as inert matrix fuels in the ‘burn and bury’ fuel cycle. However, sintering of such ceramics into a dense body is still a challenging issue. This paper addresses phase formation processes and sintering patterns of ceramics in TiO2 – Al2O3 – ZrO2 – MgO ...

Covid-19 has turned our world upside down and transformed nearly every aspect of daily life, business and travel. The COVID-19 pandemic has had severe negative impacts on human beings in all spheres of economic, social and even geopolitical life worldwide. The impact of this crisis will be the subject of numerous studies in all fields of scientific research in the coming years. According to all official data, the tourism sector is one of the most affected sectors of the economy. Despite the reported partial recove...

This paper presents an exploratory study that analysis the factors that influence the intention to use smart meters that measure electricity consumption. The authors used the technology acceptance model as a starting point for their research, taking into consideration other eight external variables: social influence, familiarity with smart meter technology, task-technology fit, compatibility, the level of trust in companies that supply electricity, price awareness, energy conservation intentions, and perception of...

There are two main sources of activated carbon production - coal and lignocelullosic materials. Recently, scientists have been focused on activated carbon preparation based on agricultural waste and lignocelluloses materials, which are effective and very inexpensive such as corncob, hazelnut shell, olive stone, Jojoba seed residue, etc. The cake remaining after the oil extraction from Pistacia fruits constitutes about 50% of the initial composition, so any commercial utilization of Pistacia oil should consider the...

The present paper is focused on depollution techniques representative for mining and non-ferrous metallurgy, which will assure a radically changed technological concept for a clean, safe and eco-efficient production, leading to sustainable development industry. At the same time, our works propose the implementation in the mining and metallurgical sector of unconventional processes through innovative techniques that lead to processes intensification, reduction of energy consumption, decrease of carbon footprint, by...

The article analyzes the issue of agricultural development of German-speaking colonists who lived in the steppe zone of Ukraine. The article analyzes the general features and main directions of development of this process and the reasons that caused it. The main attention is paid to the process of transformation of colonial agriculture. Until the 1860s, the most important and profitable branch of agriculture of the colonists was cattle breeding. However, due to rising grain prices, the importance of agriculture in...

This work presents an empirical model for forecasting the hourly values of the ionospheric E-region critical frequency (foE) over Bulgaria in dependence of both: the index of the solar activity described by F10.7 and the cosine of solar zenith angle. The dependence of foE on solar activity and solar zenith angle is studied by correlation and regression analysis. The obtained relationships are used as a base for the synthesis of the model. The model is produced by using the hourly values of foE obtained in the iono...

For craton's areas the most valuated geological object ordinary are situated in river valleys. There are stratotypes, interesting outcrops, unical paleontiological localities. However over time a lot of valuable geological objects lost. The natural and anthropogenic factors are analysed in the article that determine the preservation of specially protected natural areas and, in particular, valuable geological objects on the example of some river valleys of the north-west of the Russian Plate. The article reflects t...

In 2020, China and India accounted for two-thirds of global coal consumption, while the European Union and the United States accounted for only 10%. Coal consumption in Southeast Asia has now surpassed the European Union and will soon surpass the United States. Now the global coal trend is mainly influenced by Asia. Changes in the demand for coal in China are closely related to economic growth, but in different periods of the development of China's industrialization, the degree of dependence of economic growth on ...

Textile production is considered one of the most polluting industries with a high impact on the environment, both in terms of increased resource consumption and textile waste generation. Moreover, in the past years, the textile industry registered a significant growth, which leads to large amounts of textile waste that need to be controlled and managed. This problem highlighted the need for sustainable methods and improved technologies for textile recycling, and brings into focus the importance of circular economy...

This work is devoted to the feasibility of implementing capture and sequestration projects (CCS) in Russia, as well as to evaluation of the positive and negative aspects of implementation of CCS projects as a climate change mitigation technology. The study focuses on the current state of the problem of CO2 capture and disposal and considers possible implementation of CO2 sequestration projects in Russia. The negative and positive factors of CCS technology are also identified. The conclusion provides arguments for ...

One of the components of sustainable consumption is the consumption of organic products. Organic foods, which are natural and healthy, are increasingly competing with conventional quality products. It is therefore important to substantiate the opinion formed about the higher quality value of organic food. 2020 At the LAMMC Institute of Horticulture, red beets were grown using two different farming systems: organic and conventional. Beets grown in different agricultural systems, of the same varieties, allow to more...

Now in the global oil industry more than 50 million tons of raw materials are lost annually during the extraction, transportation and processing of petroleum products, which leads to widespread environmental pollution of the environment with oil waste. In view of the importance of the identified issues, various methods aimed at regular monitoring of fuel and energy complex facilities are of particular importance, with the aim of early warning and detection of oil product leaks, localization of their occurrence and...

On a global scale, every year the environmental problems that arise when using traditional methods of obtaining heat and cold are becoming more and more relevant. In this regard, and also in view of a number of successes in the field of materials science, in recent years, the thermoelectric Peltier effect has been of increasing practical interest to researchers. So for several years, the average increase in the global production of thermoelectric modules and thermoelectric devices for various purposes was about 15...

A bioeconomy refers to economic activities using renewable biological resources to produce energy and consumer goods. The role of the bioeconomy in the world tends to increase, as countries need to find environmentally friendly solutions under changing climate conditions. For this reason, bioeconomy strategies are developed in many countries to purposefully contribute to their development. Among the Baltic States, Latvia was the first one to design and adopt its national bioeconomy strategy (Latvian Bioeconomy Str...

The article is devoted to the assessment of the impact of the state of drinking water supply systems on the health of the population of the Siberian Federal District and the life expectancy of the population. Water is a vital strategic resource, and the issue of providing the population with a sufficient amount of sanitary water is one of the urgent problems of mankind. Taking into account the importance of efficient water use, the relationship between water resources and the environment, the UN General Assembly p...

The hydrocarbon reservoirs in mature regions are extremely complex, each reservoir having its own identity. The value of recoverable geological reserves depends on the data of geological and geophysical studies: determination of heterogeneity and reservoir compartmentalization. Residual oil reserves are concentrated in undeveloped clayey, poorly permeable intervals along the section, the development of which is impossible without research and development. One of such studies is the methods of lineament analysis of...