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Many UN and EU agreements binding on Latvia are aimed at sustainable development, biodiversity and mitigating climate change. In this context, one of the solutions is the development of concepts of bioregions or organic farming regions because the bioregion involves the principles and techniques of organic production and consumption and is characterised by an -organic- lifestyle, healthy nutrition, human relations, nature protection as well as the promotion of a particular area and the peculiarities thereof. Philo...

The work aims to acquire LiDAR data and checking the scan quality in QC Tools for Sanmihaiu Roman hydro technical arrangement located on the Bega Canal, Timis County, Romania, using mobile scanning technology MMS - Mobile Mapping System, using portable backpack equipment from Swiss manufacturer Leica, the Pegasus Backpack model. The Method of LiDAR Data Collection is a Fused Slam one, where, a Master Station has been located for the purchase of RiNEX data, using some GNSS receiver, the Leica GS 08. The raw data pr...

The increasing focus on sustainability necessitates the examination of environmental impacts across all sectors, including pyrotechnics. Pollutant emissions have been extensively studied, but information on sustainability in the pyrotechnics sector is scarce. Thus, a Life Cycle Analysis (LCA) to study two widely used pyrotechnic devices: bangers and shells was carried out, in order to analyze the environmental footprint and detect points where action can be taken. Using SimaPro software and the Product Environment...

Precise levelling networks play an important role in the research of many scientific processes, e.g. the recent crustal movements, the change of ocean and sea levels, geoid or quasi-geoid, etc. Their appropriate adjustment goes through the choice of suitable weights, which have physical common sense and minimize the standard errors of the adjusted heights. The conventional weights are supposed to be inversely proportional to the length of levelling lines, due to the assumption that the accumulation of errors in th...

The presented paper focuses the issue of finding new sources of phosphorus fertilizers to be used in conventional agriculture. Various types of pellets for heating purposes were tested. Based on the determination of phosphorus (P) content in ash obtained from the combustion of pellets produced from plant waste generated during the production of seed materials, it was found out that getting P from this ash is more effective than getting P from the ash of wooden pellets that are commonly used as fuel in households. ...

This research focuses on the long-term assessment of vegetation quality dynamics in the Spacvan Basin from 1984 to 2023. The objective is to evaluate how specific climatic factors influence vegetation health. The study employed remote sensing techniques, analyzing satellite images from the LANDSAT and Sentinel missions. The Spacvan Basin, covering 43,519 ha, served as the area of interest. Data collection, processing, and analysis were conducted using the Google Earth Engine platform. NDVI values were measured ove...

Construction technologies are among the most critical in terms of negative impact on the environment. Burnt binders, primarily cement and air-lime, emit significant volumes of carbon dioxide and man-made heat. At the same time, a large amount of hydrocarbon fuel is also consumed for their firing. Therefore, to achieve sustainable development goals, the development of alternative binder formulations or innovative ways to produce traditional binders with low carbon emissions is necessary. The synthesis of low-carbon...

The article describes the design process for a low-cost aerial delivery system (LCADS) that is a one-time use, disposable, airdrop system consisting of cargo parachute and container. The parachute systems is developed for military resupply missions and for humanitarian relief efforts in areas where ground supply and/or recovery of airdrop equipment is difficult or not feasible. LCADS consists primarily of three types of cargo parachutes capable of supporting and delivering in a wide range of weights, from 70kg up ...

This review provides an overview of the diversity of macromycetes (fungi with visible fruiting bodies) in Mtirala national park beech forests, highlighting their ecological roles and significance within these ecosystems. Mtirala National Park is a protected area in Adjara region, Western Georgia. It is part of the Colchic Rainforests and Wetlands, a UNESCO World Heritage Site. Mtirala National Park Colchic broad-leaved and mixed forests include sweet chestnut and Oriental beech woods. Mount Mtirala is one of the m...

Construction using 3D printer technology seems to be not just a passing trend and a growing number construction companies are approaching this new construction methodology. Although construction processes with printers are becoming standardized, it is also true that many other aspects must be considered in the design phase. Better this construction methodology becomes known, more architects and engineers will have to learn how to design these constructions, in the methods of statics, systems, etc. A very important...

After war conflicts or crisis situations, the recovery of territorial communities becomes the most important task for ensuring stability and development. However, effective recovery requires not only material but also informational and communication efforts aimed at forming a positive image and attracting investment. Ukraine has suffered significant damage as a result of the full-scale military aggression, so there is a great need for the implementation of public administration mechanisms to attract investment for...

The optimization of technological processes is vital for advancing scientific and technical progress in exploration activities, particularly in drilling operations. The integration of operating microprocessor equipment and automated management systems has opened up new opportunities for theoretical research in optimization processes and drillings. Control systems for drilling exploration wells on solid minerals enable real-time operation and data collection, processing, and diagnosis of equipment functionality. Op...

This article arises from a joint project between the universities of Jaen and Malaga (Spain), which are developing outdoor prototypes at the University Campus -called Smart-Trees- to improve the quality of exterior spaces for the university community. The starting point for creating these outdoor canopies is using recycled material and elements from other buildings, such as from demolition or disassembly operations. The first prototype was developed at the Malaga University Campus, and the second at the two campus...

This paper deals with the results of research on the laboratory analysis of firefighting water in fire trucks and the possibility of its disinfection for subsequent use as an alternative source of safe water supply to the affected areas. The quality of the water in these vehicles after filling the internal tank is relatively unclear. For this purpose, over a period of 5 months (July to November), water samples were taken from firefighting trucks. The samples were then analyzed in an accredited laboratory. Laborato...

Sustainable aviation fuels represent the most viable near-term option for reducing greenhouse gas emissions from the aviation sector, as they can be deployed within existing aircraft and fuel infrastructure. Despite significant advances in microbial metabolic engineering, the contribution of biological platforms to aviation fuel supply remains marginal, indicating persistent limitations that extend beyond laboratory-scale performance. This review provides a critical analysis of microbial systems proposed for susta...

Micromorphological features of salt-affected soils in the Cis-Baikal and Trans-Baikal regions (south of East Siberia, Russia) are considered. When studying morphogenesis of these soils, pedofeatures of soluble salts and gypsum serve as indicators of modern and former stages of soil formation. Comparative-geographical, micromorphological, and chemical methods have been applied to study soil salinization. Chemical analyses attest to the presence of gypsum and soluble salts in solonchaks of both regions. However, the...

On the last few years, microwave and ultrasound irradiation has become a successful tool in modern medicinal and organic chemistry especially (but not only) because in many cases synthesis became ecologically friendly. As part of our ongoing efforts in the field of nitrogen heterocyclic derivatives, we present herein some core results obtained by our group in the field of N-alkylation and 3+2 cycloadditions reactions applied in the nitrogen heterocycles series, by using microwave and ultrasound irradiation. Compar...

The eastern Circum-Rhodope belt (CRB) is a major unit that surrounds both the Serbo-Macedonian and the Rhodope zones in the Alpine orogen of the northern Aegean region. This belt contains Triassic-Jurassic metasedimentary successions and Middle Jurassic (176-165 Ma) supra-subduction zone Evros ophiolite. The latter has experienced ocean-floor hydrothermal metamorphism or very-low to low-grade metamorphism. We report on mineral compositions of rock-forming minerals in schist and mafic rocks from the eastern CRB. Ou...

Since the drone industry is more and more frequently used on a large scale, it is desired to obtain autonomous drones for the fulfillment of as many different missions as possible. Thus, within this project it presented the design of a mobile tether system for a rotary-wing UAV, with the aim of detecting changes in air quality, especially in areas around cities where illegal waste burning is frequently reported or in highly industrialized areas. Mobility is one of the important features of the proposed tether syst...

In the modern world, neural networks are becoming an integral part of human life. In particular, neural networks began to be used for the task of constructing information security tools; in connection with this, the need gradually began to arise to strengthen and improve the mechanisms of artificial intelligence itself, including when using big data technology. Let's consider the basic concepts of working with Big Data technology, in particular the processing of assimilation memory to build a general visual pictur...

This study examines the impact of the risk of illegal logging on landscape permeability in a region where 8,060 km? of the total area is covered by forests. According to official data, 29% of this forested area is located in zones at risk of illegal logging. Given that forests play a crucial role in maintaining landscape permeability and ecological connectivity, the study employs the CSI index, which integrates the risk of illegal logging, to assess how these activities affect the ecological integrity and function...

Presence of coastal structures usually causes significant impacts to adjacent shores, especially when they are composed of sand. Many times, these impacts are associated with inappropriate design due to inadequate consideration of hydromorphological processes and system interactions. As a result, excessive erosion and/or deposition of sediment is observed, which implies costly, and in some cases, continuous maintenance. The study presents an assessment and gives explanation of significant changes in the morphology...

Hydrometric propeller methods, is device that responds and measuring the velocity of the water current at the point where its sensor axis is located. Mechanical hydrometric propellers are widely used in our country, in which the current causes rotation of a screw vane with an angular velocity proportional to the velocity of the current, in this method the depth of the river profile must be taken into account in order to comply with the measurement condition in 1, 2, or 3 points namely 0.2h, 0.6h and 0.8h, h-depth ...

The article describes commonly used imaging techniques for monitoring solar farms using drones, highlighting the advantages of each method and the benefits of precise flight path planning. Thermal imaging is discussed for its ability to detect temperature variations and identify potential issues like cell degradation and electrical failures without physical inspection. High-resolution imaging provides detailed visual inspections to identify physical damages, dirt accumulation, and shading issues, enhancing mainten...

Underground mining operation in salt deposits requires special control over rock mass stability. Changes in stress within the rock mass cause gradual convergence of underground workings. A slow convergence process with a complex spatiotemporal distribution requires the measurements with high accuracy, which is carry out on a well-planned spatial distribution of observation network. The aim of the study was to present the procedure of designing and implementing observations of convergence in salt caverns within a s...

Aggregate is one of the essential components of artificial structures. Aggregate is obtained by mining, as is the case with mineral raw materials. The output of aggregate mining is, in addition to the main product, also a secondary one - sludge. Sludge is an integral part of the wet processing of the most minor aggregate fractions. The amount of sludge in quarries is increasing, while the task of sludge management is to find a purpose for it and thus utilize it. Sludge management methods must consider the most neg...

New methods for assessing soil cover heterogeneity, based on the analysis of extensive satellite data using neural network filtering technologies, were implemented to evaluate the territory of northern Kazakhstan. A comparative analysis of the quality of soil cover structure (SCS) determination, using remote sensing data, was conducted using two different methods. The first method is indirect and involves determining the SCS by analyzing and aggregating multitemporal vegetation indices (MVI). The second method is ...

In an increasingly competitive economy, we are facing fierce competition in the construction materials industry, where the use of recyclable waste from demolitions has become more than a necessity. The compensation for the loss of certain properties, which could otherwise lead to a reduction in mechanical characteristics, has been achieved through the addition of nanoparticles with superior qualities. This paper will present the main nanoparticles introduced as subtle additives (ranging from 0.01 percent to a maxi...

Accurate estimation of greenhouse gases in national inventory reports, submitted by countries every year under the UNFCCC and the Paris Agreement is an important task. Fugitive greenhouse gas emissions from oil production, gathering and treatment is a key category in the Russian national inventory report. Total emissions from this category accounted to more than 30 million tons of CO2 equivalent in 2021. Since in Russian inventory the default IPCC emission factors from these operations are used, in the framework o...

In economic forests, the productivity of forest stands should be increased as much as possible, because the global demand for timber is growing every year. Planted forest trees can be realized using the advantages of selection, naturally regenerated - faster growth can be achieved by improving the growing conditions and limiting factors that reduce or delay the formation of growth. Data were collected in 6-year-old P.sylvestris forest stands Cladinoso-callunosa and Vacciniosa. The plots were established in an area...

Natural resource management plays a crucial role in regional development as it affects the social, economic and environmental aspects of the region. Effective management of natural resources can contribute to the sustainable development of a region by ensuring the long-term availability of resources and by protecting the environment. An important aspect is the promotion of sustainable practices in the use of natural resources. Sustainable tourism practices are needed that minimize the impact on natural resources w...

This research investigates the increasing use of alternative fuels in internal combustion engines, a phenomenon that has experienced significant growth in recent decades due to the heightened interest in reducing atmospheric pollution. Although the pollution level associated with alternative fuels is generally lower compared to fossil fuels, it is essential to emphasize that the pollutant impact of alcohol-based fuels depends on various factors, such as engine technology, mixture composition, fuel quality, and usa...

Mining activities are carried out employing a variety of machineries and equipment; in many cases these can generate relevant health problems for workers. One of the biggest hazards for workers is noise, since prolonged exposure to a noise source could cause damage through long-term exposure. Various researchers pointed out that the damage that can be generated by exposure to noise is of various types with sometimes very serious consequences. Specially drivers of particular vehicles of the mining sector, such as d...

Regardless of its type and size, any organization is faced with risks that can affect the achievement of its objectives in terms of activities, strategic initiatives, operations, processes and projects, with different consequences on strategic, operational, financial results and image and reputation. All activities of an organization involve risks, and risk management is the process of substantiating the decision, by taking into account the effects of uncertainty on the materialization of objectives and determinin...

The Constitution of Georgia provides the main principles of protection of employees and employers at job places, concerning healthy and safety conditions. The paper reviews the new Laws of Georgia pertinent to labor safety, elaborated and approved during the last years. These Laws regulate social-economical, technical, hygienic and other conditions of work of employees at job places. These are Laws, destination of which to secure the workers health and safety in the present, future and must not have a negative inf...

In this moment the populations of Scolopendra cingulata from Austria, Hungary and the new discovered populations from Romania represents the northern limits of S. cingulata in Europe. These three northern small populations of S. cingulata are very important in understanding the evolutionary history of this iconic species for Europe.

Urban meteorological parameters and traffic emissions are characterized by microterritorial variability. Online weather and traffic information is the basis for creating online services to provide users with information about the toxicological risk, noise effects and thermal stress risk. The purpose of this work is to assess the possibilities of online environmental modeling. The methodology includes special field studies to select model parameters, developing models for online calculations of noise levels, concen...

Heat pumps are important due to their efficiency and a target of climate neutrality. They also reduce the emissions of carbon dioxide. This article deals with the smart mini hybrid heat pump, which is planned to use for heat gain in summer, energy accumulation in the ground storage, and further consumption in winter. This heat pump can get heat from the surroundings or solar collectors. Heat pump water-water has been used in this article. Its input and output parameters were measured, a coefficient of performance ...

This paper explores the operational characteristics of a DC islanded microgrid engineered to produce green hydrogen, utilizing power sourced from a solar array complemented by an energy storage system. The model simulates a one-week evaluation period, incorporating comprehensive analyses of electrical, thermal liquid, and thermal gas domains. By examining the interactions between the solar array, energy storage, and electrolyzer, the study provides a detailed assessment of system performance under varying conditio...

Sustainable tourism at the regional level is an approach to tourism development that aims to maximize economic, social, and cultural benefits for local communities while protecting and conserving the surrounding environment and cultural heritage of the region. This concept emphasizes responsible resource management, reducing environmental impact, and promoting social and economic inclusion. By adopting principles of sustainable tourism, the tourism industry can contribute to the conservation and protection of natu...

Modern agriculture, or precision agriculture, is a method that enables better, more efficient and smarter farming, ensuring sustainable development. Precision agriculture can combine data obtained from GPS systems with data from aerial photographs to precisely determine soil needs based on this data. Combining this with precise weather forecasts and location determination systems provides a powerful tool for more efficient agriculture. New technologies have already created a niche in agriculture. By combining deta...

The scale of annual reproduction of cellulose-containing biomass in nature allows us to draw an unambiguous conclusion that cellulose is the only source of raw materials for the chemical and fuel industries, representing a real alternative to fossil resources and, first of all, oil. Cellulose is the main component of plant biomass. According to some estimates, almost half of the organic carbon in the biosphere is contained in cellulose. Hydrolytic hydrogenation is a special case of carbohydrate hydrogenation. With...

The study of a gravimetric network is closely connected with determining the value of the drift on the gravimeter scale (zero-point drift; drift). The realization of a great number of over-measured quantities makes preliminary processing of gravity measurements a hard, slow, and delicate process. The main purpose of this research is to investigate a method that would simplify the overall technology of gravimetric measurement and post-processing of the results obtained. A modification of the commonly adopted adjust...

The olive oil sector is one of the most widespread agricultural and agro-industrial activities in the Mediterranean region, and it also produces a significant amount of waste biomass. This research aimed to find energy valorisation for the olive oil by-products through biogas/biomethane production from olive pomace (OP) and olive mill wastewater (OW). To this end, these biomasses underwent preliminary treatments: the OP was processed using an ionic liquid (IL) consisting of triethylamine and sulfuric acid [Et3N][H...

This paper presents an in-depth analysis of a residential solar thermal system designed for domestic hot water (DHW) production in a single-family dwelling located in Mangalia, Romania. Positioned at a latitude of 43.894- and a longitude of 28.422-, Mangalia benefits from an annual global irradiation of 1403 kWh/m?, providing favorable conditions for solar energy utilization. The study evaluates the system's performance over the course of a year, focusing on energy consumption, solar fraction, and environmental be...

In light of the pressing need to achieve climate neutrality in the energy sector, the European Union seeks to identify strategies that will enhance and diversify its green energy supplies. As a renewable energy source, green hydrogen promises to offer a viable alternative to fossil fuels where green electricity may be insufficient or inaccessible. This is why the production and supply of this innovative energy carrier is becoming a significant focus in EU politics and research. This article examines and compares p...

Automation of complex technological and laboratory systems requires the creation of specialized mixed-critical computing systems. They must control the technological process at several levels (control subsystem) and maintain the user interface with technological data management (information subsystem). So, they execute tasks with significantly different criticality. Also, it is assumed that the development of physical components, the implementation and configuration of the control subsystem at different stages of ...

Ukraine actively participated in the implementation of the provisions of the European Green Deal (EGD), seeking to build a "green" economy and a prosperous society. The purpose of this study is to determine the forms and directions of activities of public associations in the implementation of the provisions of the EGD in Ukraine. Influential public organizations involved in the implementation of the European Green Deal are the Center for Environmental Initiatives "Ekodiya" (Kyiv), "Ekoclub" (Rivne), "Ecology. Righ...

Hydrogen-based energy production involves the use of fuel cells or the direct combustion of hydrogen (a particular case being hydrogen combustion in internal combustion engines). Direct hydrogen combustion is still in the testing phase, with challenges arising from its energetic properties, which continue to be a difficult factor. For instance, hydrogen has a low calorific value (about three times lower than methane) in its gaseous phase, which is the phase where combustion occurs, a very high combustion speed (ab...

Natural gas hydrate reservoirs often consist of a mixture of various gaseous species: small-chain hydrocarbons, as methane, ethane, propane and butane, and other species, as carbon dioxide, nitrogen, oxygen, hydrogen sulfide and others. Every species shows different forming conditions. Moreover, those conditions may change as a function of the mixture composition and the properties of the surrounding environment. The present study deals the production of hydrates with small-chain hydrocarbons, within a silica-base...