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One of the main sources of risk on slopes in the road infrastructure is the lack of sufficient technical awareness and creative competence of the specialists involved in the investment process. The impact of these sources can be minimized by implementing an appropriate risk management, prevention and protection system in slope stabilization. This system should ensure continuity of geotechnical judgment during geological survey, analysis, design and construction. Geotechnical risk should be considered as a product ...

The article deals with the topic of cyberterrorism committed with the help of social engineering. It lists the means and methods used by modern cyber-terrorists but mentions in more detail the less common ones, which have a greater chance of success because they are not widely known. In the case of cyber terrorism or cyber war, the damage can become global. It is in the existential interest of every state or company to have a sufficient level of prevention against threats to its digital space and adequate settings...

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...

The Shu-Ile tectonic zone is located along the Jalaiyr-Naiman deep fault (geosuture). It stretches in a northwestern direction, passing in the northern part of the territory into a submeridional direction. It stretches in a narrow strip of about 600 km and is a section of the second ring structure of Kazakhstan. Deposits and occurrences of iron, chromium and non-ferrous metals, gold and rare metals are associated with this geosuture zone. In general, the tectonic structure of the area is quite complex due to the d...

There exist a large variation in the yield of maize in Bulgaria regardless of the high productive potential of maize, and the favorable marketing conditions in the world. Climate change during the last 3 decades, the limited possibilities for irrigation are a limiting factor in determining suitable areas for maize growing. The period with sufficient moisture is decisive in choosing a suitable hybrid. The analysis of the agro-climatic potential of the region and the adaptation of the cultivation technology to the p...

Today's time is characterized by a high degree of globalization and trade borders are both physically and commercially open, and a competitive organization must also take into account factors that were less important in the past. Any company that operates in a market environment is influenced by this environment and to some extent helps to cocreate this environment. The current time in connection with the COVID-19 pandemic and the war conflict in Ukraine represents a difficult test for all business entities. In th...

Our current IT innovations will alter the way government agencies operate. The relationship between public administration education and new forms of governance, such as e-government, is thus something to consider. Public administration education must be updated to reflect the structure of future governments. The paper discusses a number of key topics that are connected to the topic. Evolving aspects start to appear in public management in this century of information and information technology. Also, numerous books...

An intense seismic activity started in February 2023, close to Targu Jiu city, in the Oltenia region (Romania). The strongest events occurred on 13th and 14th February, the first shock with ML=5.2, and respectively the second shock with ML=5.7. These main shocks were followed by specific seismicity bursts (about 2000 foreshocks were registered). The focal depth of the events ranges from 1 to 20 km, most of them being situated in the 10-20 km depth interval. The area of interest is tectonically complex with various...

The paper presents the cover of soils, their characteristics and the way of use according to the fertility and favorability of the soils identified in the Remetea Mare locality in Timis county. For this, a series of analyzes and field observations were carried out as well as comparisons of the initial data taken from previous studies and researches. Soil profiles were dug, 14 soil samples were collected in a disturbed structure to determine the main physico-mechanical, chemical and water indices, after which the d...

The aim of this work was to evaluate the effect of low rates (20-40 kg ha-1) of siliconcontaining organo-mineral complex (LignoCel-Si) application on potatoes "Imanta" and summer wheat -Vinjet- productivity and quality, under conditions of organic farming. The LignoCel-Si organo-mineral complex was obtained on the basis of the residues of hydrolysis lignin and sea buckthorn (Hippophae rhamnoides L.) agro-waste lignocellulosic biomass after water-ethanol extraction, and enriched with silicon (Si)- containing inorga...

An assessment of processes in forest stands requires the monitoring of many parameters. The annual dynamics and composition of precipitation show the impact of atmospheric depositions on ecosystems. Throughfall depositions play a significant role not only in the dynamics of canopy processes but also influence soil conditions through the interception processes and element changes in canopies. The study was carried out in two permanent sample plots located at different altitudes in the Western Stara Planina in Bulga...

The purpose of this study is to shed light on the question of what the possible consequences will be on people and the building stock of a strong earthquake for the city of Varna. A seismic risk assessment methodology is used, which was approved by the Ministry of Regional Development and Public Works of the Republic of Bulgaria. The seismic impact is determined based on a detailed deterministic study of the seismic hazard. Initially, an assessment of the seismic vulnerability of the building stock is made based o...

All the affluent countries are characterized by urbanization. Increase of the urbanized areas leads to change of total nitrogen and phosphorus unit discharges from the catchment areas. Therefore, there is necessity of the watersheds parameters ascertainment for usage of them at the biogenic elements outflow calculation. For that reason, we must determine the watersheds boundaries and types of surface within the watersheds. The considered methodology includes the watersheds boundaries ascertainment by means of digi...

The impact pile driving method is widely used for the reinforced concrete piles and metal tubular piles with a large weight. Pile driving is a dynamic process: the energy of heavy hammer impact on the pile head is transmitted through the pile shaft and pile toe to the surrounding soil, exciting vibrations of the soils particles and propagation further to the ground. Propagation distance is increasing with driving depth. Impact borned waves must be taken into account during construction work near existing buildings...

Among the many factors affecting the average life expectancy and mortality of the population, along with the effective services of the health care system, an important place is occupied by the ecological condition of the environment, in particular, the quality of the security of its resources for human health. Providing the population with safe, clean, drinking water is one of the most important factors in the world and among them in Georgia. According to the data of the World Health Organization, almost 2 billion...

Abandoned and polluted land that appears during deindustrialization and urbanization is generally understood as a degraded area. During deindustrialization, the migration of industrial sectors leaves potentially polluted, unused land in the hands of local governments, so the transition to new economic models creates the right of people to move from urban centers to the outskirts of cities for a better quality of life, resulting in many properties in urban centers becoming dilapidated and abandoned. The existence o...

Geomagnetic storms cause disturbances in the Earth's magnetosphere, which differ in their spectral composition at different latitudes. The study of local spectral characteristics, both via remote sensing and ground-based data, provides valuable information on the dynamic processes in the Earth's magnetosphere and the longitudinal propagation of the corresponding disturbances. The local spectral characteristics of the moderate (G2) geomagnetic storm that occurred March 13-14, 2022, are obtained. A time series of da...

An intense seismic activity started on February, 2023, close to Targu Jiu city, in Gorj region (Romania), as part of the Getic Depression. The earthquakes were located nearby the contact between Getic Depression and the Carpathians orogen. The seismic sequence consisted of more than 3100 foreshocks with the highest magnitude of Mw=4.9 (occurred on 13 February 2023), respectively Mw= 5.4 (on 14 February). A stable and automatic method, implemented and optimized in the real time data acquisition and processing syste...

Subway construction in the central parts of cities requires the implementation of the latest technological advances in underground construction. These achievements relate to the construction of the main road arteries of the metro. Despite the implemented technical innovations in mass construction, problems need to be solved that require a creative approach for unique cases in technology and security. Risk cases along the subway route are most often concentrated in areas in contact with existing facilities and cont...

Marine litter is a significant and growing environmental problem with global implications, affecting oceans and seas. This study analyzes marine litter's composition and density, specifically at Kamchiya-Shkorpilovtsi, the longest beach on the Bulgarian Black Sea coast. The monitoring period from 2018 to 2022 covers an area of 7645 m2. To effectively study the area, it was divided into four monitoring transects: Kamchiya- Mouth, Kamchiya-South (Novo Oryahovo Beach), Shkorpilovtsi, and Shkorpilovtsi- South. During ...

The use of microalgae as carbon sequestrators requires optimization of the cultivation process. Growth curves for three types of microalgae were plotted. The growth was carried out at different temperatures 30 and 35 ? and with initially different concentrations of inoculum 30 and 3% in order to assess the possibility of growing crops at the lowest cost and with a high yield of a useful product. We used 3 strains of microalgae - potential sequestrators. The introduction of the inoculum at a dose of 30% led to an a...

The results of numerical simulation of the accumulation of nitrogen oxides in the deadend and main workings during the operation of the mucking and flitting device at the stages of loading and auxiliary operations are presented. The process of accumulation of nitrogen oxides is modeled on the basis of a previously developed two-stage methodological approach: the 1st stage is the calculation of aerodynamic parameters with applying a standard (?? ? ??)-model turbulence and the 2nd stage is the solution of the convec...

The article considers the possibilities of using modern methods and tools in teaching the industry section of economic geography, in particular the geography of the fuel and energy complex. The authors propose to use methods and approaches that take into account the significant changes that occurred at the turn of the 20th-21st centuries during the transition from industrial to post-industrial society and the formation of modern information technologies. The article proposes to increase the involvement of schoolch...

The purpose of the analysis is to interpret and conceptualize key features and changes of the Arabian monarchies oil policy, including Saudi Arabia, the United Arab Emirates (UAE). Kuwait, Qatar, Oman, Bahrain. These countries, with the leading role of Saudi Arabia, largely determine the oil policy of the countries of the OPEC+ alliance. Today, the problem of protecting the economic interests of developing oil-exporting countries in the conditions of instability of the world economy and downward pressure on oil pr...

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...

Wireless data transmission interfaces have advantages that ensure their wide and almost inevitable application in a number of tasks of creating modern automation systems, cyber-physical systems, Industrial Internet of Things, and sensor networks. However, there is a certain methodological gap between radiophysicists who are engaged in the design of wireless networks, and IT specialists who need to implement them into various computing systems. The gap is caused by the insufficiently high quality of documentation, ...

Perlite is a naturally occurring siliceous rock of volcanic origins. When heated to more than 1000-C it expands up to several times its original volume and thus creating the premises of light weightiness and thermal insulating properties. The indoor comfortable climate of modern lifestyle requires large amounts of energy to be created and sustained. This, in turn, leads to large amounts of CO2 being released in the atmosphere. Continuous research efforts are invested in creating materials with good insulation prop...

Pasta, is an unleavened, dry food produced from flour, water and eggs and other additions such as vegetables, fruits. In this paper on the basis of the technology and recipe of its own manufacture, two types of wide noodles with broth and wide noodles with spinach were obtained. Based on the methods of the quality standards, the samples of noodles were evaluated physicochemical from the point of view of the water content, as well as the content of protein and ash substances. The results obtained by physicochemical...

The development of the digital society in the light of the world-s sustainable development is uneven. The intensity of ICT processes for different groups of households varies greatly. The immersion of the population into the digital environment caused by the COVID-19 pandemic in an extreme social situation and self-isolation with the ensuing political, social and economic consequences has not yet been properly studied by the scientists and practitioners. In this regard, it is proposed to analyze the relationship b...

With the increasing interest of people to be informed at every step, to progress and overcome their limits, rapid developments have occurred in the field of IoT (Internet of Things) and miniaturized electronics. Thus, wearable power sources with high reliability and long duty cycles are required to power wearable electronic devices to meet people's needs and smart miniaturized electronics requirements. In addition, to make them truly wearable, these must be light, flexible, silent, low power consumption and adapta...

Algae are some of the oldest forms of life on earth, being consumed for centuries. There are numerous studies that highlight the health benefits of consuming seaweed, due to the high content of proteins, dietary fibers, vitamins, antioxidants, and the low-fat content. Nori seaweeds, which is used in the preparation of sushi rolls, stands out for its low caloric intake and high content of minerals, vitamins (vitamin B12 and vitamin C), as well as iodine. Only certain types of species of seaweed are used to make Nor...

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,...

At European and national level there is Directive 2013/29/EU of the European Parliament and of the Council of 12 June 2013 on the harmonisation of the legislation of the member states relating to the making available on the market of pyrotechnic articles and Decision 1102 of 10 December 2014 issued by the Government of Romania for the national regulation of the placing on the market of these products. The specific quality system of the Explosive Materials and Pyrotechnic Articles Laboratory of INCD INSEMEX Petro?a...

Increasing resistance of microorganisms to conventional drugs has required scientists to discover new sources of biocides with a broad spectrum of action. Since ancient times, plants and plant derivatives such as essential oils have been used in traditional medicine. In the present study, the ethanolic extracts of the aerial parts (leaves and stem) of Thymus pulegioides were evaluated for their antimicrobial activity against some pathogenic bacteria, Gram+ bacteria: Staphylococcus aureus and Streptococcus pyogenes...

The article analyzes the problems of creating custom cyber-physical systems (CPS) and approaches to their design using computing platforms. The features and typical problems of the three main scenarios of creating a CPS are shown: 1) by applied specialists only; 2) by IT specialists only; 3) by applied and IT specialists jointly. The last scenario is considered in detail. The need for explicit allocation of interfaces for interaction between applied and IT specialists, explicit allocation of the CPS computing plat...

The monitoring of geodynamic processes with modern GNSS technology in the area of Sofia and Southwest Bulgaria has been going on for more than 25 years. To investigate modern crustal motions in the area, GNSS data obtained between 1996 and 2022 are analyzed to obtain the velocity field for southwestern Bulgaria. Every year, measurements are carried out on a part of the points, and the last measurements were carried out in 2022. For the entire period, monitoring covered 28 stations. To evaluate the new result for t...

Agriculture sector has a major role in food security worldwide, through its contribution to the production and availability of highly nutritious and safe foods such as meats, eggs, milk and vegetables. In recent years, global warming crises became a serious worldwide issue since it adversely affects human health. One of the solutions to this serious problem is to establish integrated farming system (IFS). This is because the integrated farming system use natural resources efficiently, reduce problem of waste, mini...

The paper presents a new approach to the design and development of textile woven structures with copper yarn content intended for heating systems. Copper is known for its high electrical conductivity, meaning it can easily transfer electrical energy through its surface. This makes copper yarns ideal for heating applications, as they can quickly and efficiently transfer heat to the surrounding environment. In addition to their electrical properties, copper yarns also have good thermal conductivity, which means that...

Granitoids are very developed and widespread geological formations on the territory of Kazakhstan. Many mineral deposits are associated with them, in addition, they themselves are useful minerals, like building materials. The Shu-Ile tectonic belt in Kazakhstan is a large region of the Paleozoic granitoid massif. Many deposits of gold, non-ferrous metals and rare earth elements are associated with them. One of them is the Jeltau leucogranites complex, with which most of the facing stone objects are associated. In ...

Durability and reliability of concrete structures is influenced by different forms and combinations of attacks such as environmental, mechanical, chemical and/or electrochemical. Among them the damage due to reinforcement corrosion is a rather crucial one and rather often is governed by the presence of chlorides on the surface of the steel. To assess and/or predict this complex effect causing a specific type of concrete damages, both the experimental and modelling methods have to be utilized. As a part of large ex...

The effect of pressurized hydrogen on pipeline walls is an important phenomenon that can cause damage to the integrity of the pipeline structure during transport and storage of gases. Hydrogen can penetrate the wall of metallic pipelines (alloy steel or carbon steel) and cause cracking or rupture of the material, which can lead to pressure loss or even serious effects (explosions, fires). The embrittlement of the metal by hydrogen is a phenomenon of degradation of the mechanical properties of the metal, as a resul...

Road traffic fatalities are a significant concern worldwide, as highlighted by data from the World Health Organization (WHO) and other international organizations. One approach to enhancing road safety is through the assessment of specific characteristics or features that contribute to the overall safety condition of roads. The International Road Safety Assessment Program (iRAP) identifies several attributes that have a direct impact on road safety. Some of these attributes can be collected from satellite imagery....

From a geological point of view, Dobrogea presents a wide variety of rocks specific to all three major petrological categories. Plutonic magmatic rocks are found especially in the Macin Mountains, in the form of granites or granodiorites, rarely diorites. Basaltic volcanic igneous rocks are mainly found in the Niculi?el Hills. Metamorphic rocks outcrop in the South of Tulcea County as Micaschists, on the border with Constan?a County, in the well-known Altan-Tepe mining area, but also isolated, to the Southwest of ...

As part of the GoldenEye project with European co-financing type H2020, the Academic Leapfrog Geo licensed program was purchased, with which a 3D modeling of the deposit body was made based on open source data, geological maps of the Romanian Geological Institute, non- secret data of CUPRUMIN company and drone flights. The ore has not been modeled in 3D up to now, this work presents for the first time the first consolidated modeling that highlights the size of the ore deposit body. These modelings will allow the t...

Polyurethane, as a versatile polymer prepared by the polyaddition of isocyanates and hydroxyl group containing compounds, is widely used in the automotive industry and with an upcoming change of European legislation becomes recycling increasingly important as an alternative to landfilling or incineration. Glycolysis is one of the chemical degradation processes used to transform polyurethane waste using simple glycols as the degradation agents into a raw material. Single phase glycolysis was used to produce recycle...

FOREWORD ‘Climate change is about all of us. We have the duty to act and the power to lead’ – thus Ursula von der Leyen in her speech during presentation of the European Green Deal, one of the most ambitious growth strategies that since 2019 has profoundly transformed the approach of institutions, legislators, companies and society towards the challenge of the triple transition: ecological, energy and digital. Following what is happening in the field of digital transition and implementation of Artificial Intellige...