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Disposal of waste generated by the industries remains one of the major challenges to preserve the environment. Indeed, the use of industrial waste and by-products in construction is an important advantage to conserve natural resources. For this reason, several studies have focused on the use of marble waste in construction as recycled aggregate or fine powder. The work aim is to investigate the physical properties and mechanical behavior of eco-friendly mortar made with marble powder. The experimental study consis...

The most important scientific and technical problem in the field of field development is the most complete extraction of oil from the subsurface while ensuring high rates of development. The solution of this problem is complicated by the fact that most of the oil fields in the Western region of the Republic of Kazakhstan have moved to a late stage of development. At the deposits of the Mangystau region, the composition of borehole products includes resins, asphaltenes, paraffins, salts. All this leads to colmatati...

Addressing environmental issues is related to the scientific, economic, social, and political issues of a particular country. Human impact on nature is increasingly strong to equal to the action of natural factors, resulting in an imbalance of forces between society and nature. Day by day, pollutants accumulate in some or other environmental object, some of which do not take part in the natural cycle and accumulate in the biosphere, causing adverse ecological consequences. Mining industry plays a special role in t...

In recent years there has been an increase in interest in biodegradable polymers. Biopolymers are upcoming competitors for the synthetic polymers with their profound attributes like eco-friendliness and biodegradability. They can be classified as natural biopolymers, chemically synthesized biopolymers, and microbial biopolymers. One of the most widely used chemically synthesized biopolymers is aliphatic polyester polylactic acid (PLA). It is a thermoplastic derived from renewable, organic sources such as corn star...

The article presents the results of population studies conducted in the floodplain of the Seim River within Sumy region, Ukraine. The ontogenetic and vitality structures populations of Potentilla erecta and Althaea officinalis. During the study, the following methods were used: the geobotanical method, morphometric analysis, complex vitality analysis. In general, for the region of research on P. erect- priority is the introduction of active protection measures aimed at increasing the distribution centers and the f...

To improve individual and total meat production, it is necessary to implement control models of anthropogenic influence on meat production, i.e., the readjustment and diversification of mammal and poultry meat productions to the needs of the processing industry and the regional market trend. Depending on the evolution of herds and productions, the implementation of measures to improve organizational management is aimed at ensuring, in addition to nutrition, environmental control and favourable maintenance conditio...

Various users of small heat sources in household use incorrect solid fuels. This leads to a higher burden on the environment, mainly due to higher production of emissions, but also to various problems during the operation of the heat source. These various complications may arise as a result that these fuels usually have low bulk density, high ash content, low ash melting temperatures, and low calorific values, which lead to combustion problems and often also the emission formation and further environmental burden....

Nanopore technology has become widely used because of its ability to analyze molecules at an individual level, so we are seeing a dynamic development in the use of nanopores to analyze biological molecules. In 2014, the first commercial nanopore-based device capable of sequencing long strands of DNA or RNA. While the system appears to be working well, signal analysis still has barriers. The main advantage of nanopore sequencing is that it can study the structure of a single molecule and generate reads many times l...

The impact of climate change is felt by people all over the world, but this change is more pronounced in Europe. In Slovakia, which is in Central Europe, we feel these changes in all areas of the economy, but most significantly in agriculture. We experience extremely high temperatures more and more often, and frequent periods of drought alternate with extreme intensity of precipitation. The aim of this paper is to compare these changes in temperature and precipitation with a reference period - the sixty-year clima...

Nettle leaf powder is an excellent source of nutritional compounds (proteins, minerals, fibers, carbohydrates) and biologically active compounds: terpenoids, carotenoids, fatty acids, various polyphenolic compounds, essential amino acids, chlorophyll, vitamins, etc., essential for the health of the human body. Therefore, nettle powder could be used as a nutritional supplement. The nutritional quality of the nettle powder can be influenced by the drying technique of the nettle leaves, respectively by the water cont...

Potential use of four types of fly ash waste as raw material for synthesis of photo- catalysts to be applied for wastewater treatment was investigated. In this respect the four selected fly ash types were subject to morphological characterization by dimensional analysis of particles and scanning electronic microscopy on to composition characterization by thermogravimetric analyses and X-ray fluorescence. Their potential to be used for advanced degradation of organic compounds via heterogeneous photocatalysis was i...

The oil and gas production complex plays a leading role in the economy of the Republic of Kazakhstan, the development of which is associated with the exploration, development and exploitation of not only new, but also mature oil and gas fields. In recent years, the country's large and well-known oil and gas fields have entered the last stage of development, which is accompanied by water cut, deterioration of collector properties and reduction of production rates. One such field is Uzen. Under these conditions it i...

At various stages of processing manganese ores, significant volumes of finely dispersed manganese-containing raw materials are formed. Development of technological solutions is required for their use in metallurgical processes. The aim of the study was to develop technologies intended to beneficiate manganesecontaining sludge with the fraction of less than 5 mm and to obtain pellets suitable to be melted into ferromanganese on their basis. The developed beneficiation process flow for manganese sludge includes the ...

For prospecting works on the Karsakpai-Ulytau area, we used computer modeling of geological structures and a forecast of possible associated minerals. The Karsakpai- Ulytau ore district is located in the ring geosuture zone of Kazakhstan, represented by deep faults and crushing zones, which served as channels for the penetration of mantle melts into the Earth's crust. The area has a complex geological history. The combination of igneous, metamorphogenic and sedimentogenic geological formations of the Proterozoic a...

The possibilities and prospects of a solar sail using to solve new problems of space systems control are discussed. The economic and environmental benefits that can be obtained with this control method for interplanetary transitions or for the functioning of the space system in the near-planetary space are considered. This type of control is carried out through the use of special solar sail designs that allow the maximum use of light pressure. The very idea of the solar sail control is connected with the search fo...

Lithium is a fast growing sector. It is used in the production of lithium-ion batteries, which are widely used in smartphones, laptops, electric vehicles such as hybrid cars, electric vehicles or e-bikes. The need for this element is dictated by modern demand. The main deposits of lithium, known in Kazakhstan, were explored back in Soviet times, and since then not everyone understood the need for this metal, they were mothballed as a strategic reserve. Such objects include the Medvedka, Akhmetkino deposits, the Sh...

This work is a mineral chemistry study of the pyroxene crystals composing a microgabbro dyke found in the Vila Nova de Foz Coa (VNFC) region of northern Portugal. Several pyroxene geothermometers and geobarometers have also been employed to infer the likeliest thermodynamic conditions of crystallization. Following the IMA 1988 report for the nomenclature of pyroxene minerals, the VNFC microgabbro is rich in Ca-Mg-Fe species. The studied clinopyroxenes are aluminian, chromian, and/or ferroan diopside and augite, wh...

The use of some non-wheat raw materials in the form of flours, extracts, and malts has always been of interest to food producers. The objective of this study was to evaluate the nutritional potential of some types of malted barley flour (MBF) to develop a range of breads with improved sensory, nutritional, and technological qualities. Malted barley flour (MBF) contains health-promoting compounds that enhance the nutritional value of bakery products when combined with wheat flour (WF). Two types of MBF (Amber and C...

Precipitation is the main source of recharge of water resources, thus guaranteeing their renewability. Not only hydrometeorological changes, but also anthropogenic factors exacerbate the above-mentioned effects. The increase in the level of investment seen especially in recent years in urban agglomerations through the intensification of development, increased development of impervious and paved surfaces, the use of vacant land, and thus the reduction of biologically active areas has resulted in an increase in rain...

The results of the study of granites of the north-east of the Verkhoyansk-Kolyma orogen bearing rare-earth mineralization are summarized in the article. Ore-bearing granites are classified as A-type of postorogenic and rift-related geodynamic conditions. Three groups are identified in them, differing in the origin and scale of the associated rareearth mineralization. The most ore-bearing granites are spatially and genetically related to alkaline-ultrabasic - alkaline-basic formations and formed within a long-lived...

The main goal of the analysis presented in the paper is to contribute to a clearer understanding of climate changes in Bulgaria, assessing the long-term changes in annual characteristics of surface temperature and precipitation in the period 1961-2020 and providing climate projections to the end of the 21st century. During the last decades of the 20th century, a tendency towards warming occurred in Bulgaria. Since the 1990s, only four years have had negative temperature anomalies compared to the reference period 1...

This paper focuses on recognizing the activity of dairy cows using a non-invasive approach that monitors four key behaviors: licking, feeding, standing, and lying. The study used IoT devices with accelerometers and gyroscopes attached to the cow's neck to continuously monitor its movements. The data collection process aimed to capture the dynamic and static nature of dairy cow behaviors, providing a valuable data set for subsequent analysis. To efficiently process the raw data, we analyzed it and then used long sh...

The article discusses the issue of recycling and the use of recycled substrates in building materials and parts of building structures. Recycling is one of the elements compatible with the current functioning of society and which has its significant place in a sustainable economy and construction. There are currently many modifications of construction materials such as concrete or bricks. The concrete mass or base from which modified bricks are made include: recycled glass components (powder and glass sand), HIPS,...

Activities related to industrial aspects in the 21st century focus on, among others, low-emission economy, sustainable construction, recycling of processed materials, possibilities of recovery of building materials after the decision to demolish and ecology. The most popular building material is currently concrete used to make monolithic structures and prefabricated elements. There are many modifications to concrete, and the topic of recycling in building materials has become a priority. One of the materials is AB...

Plastic materials are one of the main technological discoveries of modern civilization. Thanks to their variable properties and relatively low production costs, they have become an integral part of almost all human activities. The global production of plastics is constantly increasing. They are most often used as packaging materials and also play a vital role in construction and healthcare. In the presented article, the authors examine the methods of handling plastic waste in the Czech Republic and describe indivi...

Global warming caused by greenhouse gas (GHG) emissions is a global problem. Solid municipal waste landfills are the third largest source of artificial methane emissions. Methane is one of the greenhouse gases contributing to global warming. The net zero emissions target was set to strike a balance between emissions and anthropogenic GHG disposal by 2050. Methane emissions from active or closed landfills may be reduced by methane oxidation, which is developed as a coating over these landfills. Methane (CH4) is an ...

A detailed analysis of the b-value within the Elbasani fault zone, Albania, were studied. From instrumental seismicity in this area have been located 1830 seismic events, with magnitude Ml>0.5 Richter. In the zone of Elbasani, hot mineral water (thermal waters) spot out from natural springs which have been known since the 19th century. The statistical properties of seismicity are analysed by using b-value known as Gutenberg- Richter law. The magnitude of completeness (Mc) value is determined as 2.6, and the bvalue...

The paper presents the possibility of floating photovoltaic farms on the reservoirs of the Olt river in Romania. For the analysis, a database with the solar irradiance evolution for one year in the four possible locations was created, using the PVGIS-SARAH2 database. The locations were chosen according to the surface area of the reservoir, geographical position, and possibility of connection to the national energy system. After the analysis, it was observed that during the cold season, the solar irradiance is high...

This paper presents a model for super-rapid charging stations powered by renewable energy sources and conducts an analysis of land suitability based on climatic parameters. Initially, data on temperature, solar radiation, and specific humidity were collected for three designated areas, followed by an examination of the variations in these values. Among the three cities, Cernavoda, Medgidia, and Ovidiu, two equal segments of approximately 30 kilometers each were established for the installation of photovoltaic pane...

The article considers opportunities for using Environmental Performance Levels associated with Best Available Techniques (BAT-AEPL) as the supply chain criteria for the environmental and sustainability assessment of construction industry. Organisations in various countries have been using the Environmental and Sustainability Standard BES 6001 to foster greening of the construction sector for over 15 years. Key requirements of BES 6001 address major management systems of suppliers: quality management (QMS), environ...

This paper focuses on introducing new procedures for control processes in the area of quality monitoring and the progress of the construction of linear structures, such as roads, railways, or engineering networks. It emphasizes automation and streamlining of processes, which includes efforts to reduce manual labor and increase efficiency through digitization. Digitization is a key element of this approach, as it allows for easier transfer and analysis of data, leading to progress and more accurate evaluation of ou...

In order to carry out the detection and examination of explosive substances both before and after their detonation, this multifunctional integrated system uses the work facilities provided by the use of: ISCAN type specialized equipment intended for the determination of threat traces based on the principle of ion mobility spectrometry; GSCAN type specialized equipment intended for the detection of explosives in bulk form and in closed containers using the principle of Raman spectrometry; the LDS800HDK specialized ...

In order to study and analyze the state of the State Gravimetric Network for the territory of the Republic of Bulgaria, relative gravimetric measurements were carried out for part of the country. The studied territory covers 9 points of the reference gravimetric network. The gravimetric measurements were designed and implemented according to the realized gravimetric lines between them and gravity differences along the gravimetric lines were calculated. The obtained gravity differences are compared with the same fr...

One of the areas in Romania where the environment felt from human activities is Jiu Valley (Petrosani Depression), an area where the main activity was mining. This fact led to pollution of the area, pollution that affects both health of population and tourism, which is considered as a viable economic alternative. Investigation of environmental components, identification and analysis of impact sources on air and surface waters are the objective of this paper, which is a first step of a larger research, that will le...

Resilience is an essential psychological trait for rescuers, as their work involves responding to emergencies and disasters in challenging and often dangerous environments. In the case of rescuers, resilience enables them to remain calm and focused under pressure, cope with the physical and emotional demands of their job, and recover from the traumatic experiences they may encounter in the course of their work. Rescuers often face a range of stressful and challenging situations, such as working in confined spaces,...

In cattle, uterine infections are one of the major causes of reproductive disorders. These bacterial infections are frequently treated with antibiotics, but their effectiveness must be evaluated, due to the continuous emergence of bacterial strains with multiple drug resistances. The research was conducted on several 190 samples from cows with a presumptive diagnosis of endometritis. The exploitation technology practiced at this farm is the free stall type. Samples were collected using sterile swabs and transporte...

Explosions may have severe consequences on the integrity of structural or nonstructural elements of a building. Being considered events with a low probability of occurrence, they are not considered directly in the design, except in certain special situations (accidental design situations). In the case of deliberate attacks, placing explosive devices at short distances or even attached to building elements can cause major local failures. Local failure and potential loss of load carrying capacity are dependent on lo...

On the way to a climate-neutral Europe and a cleaner planet in general, it is important to rethink energy supply and build a fully integrated energy system within the framework of the European Green Deal. According to research, renewable energies could provide a substantial part of the European energy mix until 2050. In this mix, hydrogen could represent up to 20%, respectively between 20-50% of energy needed in transport and between 5-20% of energy needed in industry. An economy based on renewable hydrogen can si...

Echinacea purpurea is a herbaceous plant that is 80-150 cm tall. [1] The roots of the plant penetrate deep into the soil, they have fibrous ramifications, the rhizome is short. Its leaves are wide, lanceolate or elliptic-oblong, and the flowers are conical, have a violet color. Echinacea species are native to North America and in Europe they are cultivated as medicinal or ornamental plants. [17] The research focused on determining the photosynthetic rate in this species, using variants cultivated both in vivo and ...

The antibiotic resistance is a well-researched and of great interest subject for both veterinary and human medicine, not only due to the impact on human and animal health, but also for the effects that are triggered in the long run that are hard to specify at this moment. It is unanimously recognized the fact that the emergence of antimicrobial resistance phenomenon reduces the possibility of a large scale use of bacterial etiology diseases preventing and controlling means In the study was aimed both the isolation...

Eggshells are one of the widely used by-products in the food processing and manufacturing industries. Due to the increased content of minerals, especially calcium and magnesium and less trace elements (iron, zinc, manganese, copper), chicken eggshell waste can be used in many agricultural activities as a mineral fertilizer, as an additive for improving the physical parameters of the soil, or reducing the accessibility of lead and cadmium from soils polluted with heavy metals, as a substitute for natural calcium ca...

This article considers various approaches to developing taxonomies of green projects and focusing on common requirements of countries and regions. The article also analyses the standards of the International Organization for Standardization and evaluates options for applying its key principles, while developing support instruments to catalyse green projects in resource-rich countries, such as BRICS. The research proposes a scientific rationale for systematising incomplete and controversial approaches to evaluation...

In the production process of cast iron and steel castings, a large amount of waste is generated. Each stage of production of castings generates a certain type or types of waste. The largest volume of waste is the used molding compound, followed by slags from melting processes and dust, the creation of which is copied by the entire foundry process. Dust waste is generated from the beginning to the end of the production cycle in the foundry. Finishing operations represent, in addition to a large source of noise, a l...

Working in stone quarrying and stone processing poses certain risks that must not be underestimated. The safety of workers must be paramount, where work-related injuries can occur, so the use of appropriate personal protective equipment is important, but the less visible risks, such as inhalation of granite stone dust, which can penetrate the respiratory tract, lungs and lung chambers, causing silicosis, chronic obstructive pulmonary disease, kidney disease or lung cancer, must not be underestimated. Chemically, g...

Multiple crises in recent years, including the health crisis caused by the COVID-19 pandemic, the global energy crisis, the climate crisis, the decarbonization of the energy mix, the European Green Pact, the energy transition, the conflict in Ukraine, and the energy trilemma, have created the conditions for a new energy revolution. If the listed influencing factors, the sanctions imposed on Russian oil and gas as well as the confrontation with the components of the trilemma, energy security, minimal impact on the ...

The new tendency of consumers and processors in the food industry is to use organic products. Because intensive crops involve the use of pesticides and fertilizers, a bio alternative to tomatoes can be the rosehip from spontaneous flora. In this study, four variants (control, sweet, spicy and hot) of rosehip chutney were prepared as an alternative for tomato ketchup. The sensory characteristics were evaluated (by hedonic scale). The vitamin C content (by titrimetric iodometric method), polyphenols content (by Foli...

Security planning and disaster management are critical areas of focus in Bulgaria, given the country's vulnerability to various natural and man-made disasters, including earthquakes. Bulgaria has established an emergency management system for disaster preparedness, response, and recovery. This system includes various government agencies, non-governmental organizations, and volunteers who work together to ensure an effective response to disasters. The Bulgarian government and the science community conduct risk asse...

This paper focuses on the experimental testing of hydrated lime-, natural hydraulic lime-, and lime-cement-based mortars with improved salt accumulation capacity. Moreover, the effect of varying content of non-hydrophobised expanded perlite (EP) in the mortars on their durability was investigated. The substation of silica sand by expanded perlite was 25%, 50%, 75% and 100% by volume. A modified method based on the adsorption of free salt ions from solution was used to measure the chloride binding isotherms. The sa...

The purpose of the study is to substantiate the theoretical foundations of the creation and functioning of science parks. The theoretical foundations of the creation and functioning of science parks as innovative elements of the modern educational space are presented. The scheme of the territorial distribution of science parks in Ukraine was analyzed and systematized, their main functions were highlighted, and the peculiarities of the organization of science parks were revealed. The creation of the first science p...

Advancements in remote sensing technology have provided excellent opportunities for mapping the seabed and substrates. Pomorie and Nessebar are ideal for combining single-beam sonar, multi-beam sounding, and drone imaging to map seabed forms and substrates. This paper presents the final stage of the "Multidisciplinary study of Burgas Bay - MidBay" Project. The project aims to create a substrate map and identify different seabed forms. Recent systematic studies have shown that the seabed, beach, and shallowest part...