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This work is aimed at the search of optimal conditions of selective hydrogenation of 2-methyl-3-butyn-2-ol (MBY) to 2-methyl-3-buten-2-ol (MBE). The main question was if the common slurry reactors are suitable for this reaction under ambient hydrogen pressure with the use of environmentally friendly solvents. Thus, we investigated the effect of the reactor type (shaker-type or slurry), temperature and solvent nature (isopropanol, n-butanol or toluene were used) on the behavior of a palladium catalysts (1 wt.% of P...

Food industry generates high amounts of waste that can be valorized to produce energy by fermentation and conversion in biogas. This paper aimed to study the effects of biomass type (vegetal, animal and mix) and fermentation temperature (35, 40, 45 degrees Celsius) on methane concentration and energy production in a biogas plant in Suceava, Romania. An I-optimal mixture-process design was used for mathematical modelling of the data. The optimization of factors was performed by using desirability function and setti...

The efficiency of the possessed forest resources in relation to gross value added (GVA) produced in forestry of fourteen European Union member states (Austria, Bulgaria, Croatia, Czechia, Finland, France, Germany, Italy, Poland, Portugal, Slovakia, Slovenia and Sweden) in 2022 is assessed by means of Data envelopment analysis (DEA), an input-oriented BCC model with variable returns to scale (VRS). On this grounds is established that in the forestry of 7 EU member states (Austria (0,89), Bulgaria (0,71), Croatia (0...

The urgent need to combat climate change has driven the search for sustainable transportation solutions. Electric vehicles (EVs) and hydrogen fuel cell vehicles (FCVs) have emerged as promising alternatives to traditional fossil fuel-powered cars, offering the potential to significantly reduce carbon emissions. This article provides a detailed analysis and comparison of these two technologies, focusing on their technical, economic, and environmental aspects. EVs rely on batteries to store electrical energy, which ...

Accurate forecasting of reservoir inflows based on historical data is essential for effective water resources planning and management. Water flow forecasting presents a major challenge due to the nonlinear, non-stationary, stochastic, and highly noisy nature of water flows in rivers and inflows into reservoirs. These complex characteristics hinder the modeling process and limit the effectiveness of conventional prediction methods, making it difficult to achieve high accuracy results. This study explores the use of...

In a rapidly changing world, where climate change and sustainable development are among the most important challenges, education plays a key role in preparing young generations for the future. Environmental education not only provides knowledge about the environment but also empowers students to be active participants in solving environmental problems. In this article, we examine the importance of environmental education in modern curricula and the ways in which it contributes to the development of responsible and...

This paper explores the relationship between energy availability and rural domestic architecture in the Ier Valley, a historically agrarian microregion in northwestern Romania. Focusing on the period 1901-1905, the study investigates whether fluctuations in agricultural productivity-and, by extension, in the energy surplus available to peasant households-may have influenced construction practices and spatial organization. The research draws inspiration from Barnabas Calder-s [1] energy-centered historiography, ada...

The energy security of the Czech Republic (CR) and the European Union (EU) has become a key strategic issue over the past decade, as highlighted by the recent energy crisis caused by dependence on energy imports from geopolitically unstable regions. The field of energy security is a complex and strategic issue influenced by numerous factors. Technological advances, digitalisation, electromobility, the development of AI, geopolitical upheavals and the drive for decarbonisation are all increasing the demand for a st...

The paper presents an experimental pilot research, for the study of the integration of the electrical energy vector from a primary regenerative source with the thermal energy vector, for the purpose of residential air conditioning. The research referred to a period with the lowest ambient temperature. Furthermore, the research aims to highlight the economic problems for a local scale (residential heating) when using thermal energy produced by a heat pump with consumption and electricity produced with the help of o...

The article discusses the advantages of using cryogenic technology in the production of gravel filter elements. A method for calculating the main components for the production of temporarily monolithic annular gravel elements is described. An approach has been developed for the strength analysis of annular gravel filter bits, taking into account installation conditions and the effect of water flow in the aquifer. An analytical calculation was performed to determine the distribution of gravel packing in the behind-...

The engineering industry and foundry sector are at a crossroads between traditional manufacturing processes and modern technologies that are fundamentally changing the way metal components for the energy, railway, automotive, petrochemical, shipbuilding, and mining industries are manufactured. The starting point is a global PESTLE analysis of the industry as a whole (i.e., at both the European and Czech levels), which is then supplemented by the perspective of a specific representative of the engineering industry ...

The article examines the issues of effectiveness improving of use of geopotential of solid mineral deposits based on increasing knowledge about geological resources. The authors reveal the theoretical basis of the category -geopotential-. Special attention is paid to the features of cluster structure of deposits, where in the contours of the mining there are up to fifty and more percent of empty rocks and substandard reserves. The article proposes to keep account of natural patterns of mineral matter distribution,...

Agroforestry and agrovoltaics are emerging as key strategies for sustainable land use, combining economic, environmental and social benefits. The integration of digital technologies, AI and blockchain-based solutions increases the transparency, efficiency and scalability of agroforestry projects. Ukraine, with its strong agricultural sector, faces challenges related to climate change, resource depletion and war-induced environmental damage. The study is based on a comprehensive analysis of scientific literature, s...

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. There has been an interest in the production of designer poultry eggs to meet the need of consumers with a healthy lifestyle. Chicken eggs represent a relevant diet source of cholesterol. Compared to other animal protein sources, eggs contain proportionately less saturated fat, which has generally been recognized as...

The volatile fatty acids (VFAs) are a valuable source of hydrogen on fuel industry or precursors of polyhydroxyalkanoates, a highly in trend and non-toxic bioplastics. However, the VFAs generation costs are expensive. Therefore, this study proposed a recycling solution of the waste activated sludge (WAS) into VFAs by non-conventional treatment with tandem steps of energic and slow oxidation in alkaline media by hybrid treatment with ozone and sodium percarbonate (SPC), followed by semi-aerobic fermentation at 22oC...

Ensuring safety from the point of view of the air is determined by the importance of re-ducing the risks of untimely appearance of toxic and explosive gases in the underground workings of the salt mine, while maintaining safety and security sanity at work by monitoring and foreseeing possible failures and voluntary conscious actions under-ground. Still keeping in mind the context of the society from the socio-political-economic point of view and for the development of knowledge in the problem studied the following...

The paper highlights the complexity of multi-energy integration (electricity and heat) in a regional economic system, by using the vectors represented by green hydrogen, green certificates and methanization of captured carbon dioxide, for a local market mechanism. The scale of application can go down to residential areas of energy self-producers. Regional multi-energy systems take into account the use of fossil fuels (at least methane), along with biomass for the production of electricity alongside that from renew...

Horizontal composite tanks represent critical components in industrial applications where achieving an optimal balance between mechanical performance, material efficiency, and environmental impact is essential. This study investigates the environmental performance of structurally optimized glass-fiber-reinforced polymer (GFRP) horizontal tanks featuring progressive rib thickness configurations. The composite laminate optimization was carried out through advanced numerical simulations in ANSYS Mechanical 2024 R1, c...

The paper deals with the presentation of modern quantitative methods for assessing environmental risks. It evaluates individual methods in terms of their suitability for use in individual phases of the risk assessment process. The qualitative comparison of individual methods and techniques is based on predefined criteria. A multi-criteria decision-making method was used for the comparison of the methods and techniques. Methods of Fault tree analysis, Event tree analysis, Monte Carlo simulation, RM/RA CRAMM methods...

This article is based on an analysis of how sustainability and environmental protection are communicated in the form of product symbols. The aim is to explore Polish consumers' awareness and preferences regarding environmental labelling on products and, in a broader context, society's approach to protecting the environment by choosing products created in a sustainable way. Through empirical research, including a self-completed online questionnaire and secondary data sources, the study addresses the key research ob...

Yogurt milk's functionality can be enhanced by fortifying it with natural ingredients like probiotic bacteria, prebiotic additives, phenolic compounds, and dietary fiber. Beyond these, non-nutritive additives, such as flavors, are commonly used to improve its organoleptic appeal. Alternatively, bacterial mixtures can be employed to produce flavors esters via biotransformation during milk fermentation, offering a biotechnological approach to flavoring. This study focused on formulating four essential oils: tangerin...

The working environment specific to underground activity under normal operating conditions refers to the type and concentration of gases specific to the underground atmosphere (O2, CO2, CH4, CO, N2, CnHn), the humidity present in the underground atmosphere, the type and concentration of suspended dust, barometric pressure, air temperature, air speed, flow rates, etc. In order to know the normal environmental conditions specific to an underground workplace, specialized measurements and laboratory determinations are...

The charging time of Electric Vehicles (EVs) is an important parameter that greatly affects their operation. Its evaluation helps to estimate the distance traveled. The paper derives an analytical relationship that helps estimate the charging time of the remaining capacity of the EV battery. The relationship is based on a quadratic approximation of charging times for several categories of batteries with different capacities and charging stations with different power levels.

The aim of the paper is to analyze the key ethical aspects of the application of Generative Artificial Intelligence (GenAI) in disaster risk reduction (DRR), identifying the challenges and proposing a framework for their responsible solving. GenAI is a transformative technology in DRR, which offers new possibilities for predicting, preventing and responding to natural disasters. GenAI can create detailed simulations for training, analyze large data sets in real time, generate personalized warnings and optimize log...

The European Union (EU) has positioned itself as a global leader in climate change mitigation, implementing a wide range of policies and initiatives aimed at reducing greenhouse gas emissions, promoting renewable energy, and fostering sustainable development. These efforts are aligned with international commitments, such as the Paris Agreement, and are integrated into the EU's broader climate and energy framework. The private business sector in the European Union (EU) plays a crucial role in climate change mi...

The European Union (EU) is dedicated to advancing the SDGs, aligning its efforts with both global objectives and its own strategic priorities, such as employment targets at the EU level. To address unemployment, particularly among youth, the EU has implemented a variety of policies. These include initiatives focused on enhancing education and training systems, as well as measures designed to foster a work environment that supports higher activity rates and increased labor productivity. Additionally, specific progr...

To increase the adoption of recycled plastics in the construction industry and to make this material economically viable, it is of outmost importance to develop technological processes that can make contaminated or dirty plastics useful. This study applies an Euler-Lagrange numerical approach to evaluate the suitability of injection moulds for optimized structural elements made from contaminated recycled polyethylene and to check if the mould shapes are compatible with a normal injection technological process. The...

The transition to a sustainable energy system is one of the European Union's key strategic directions, in line with achieving climate neutrality by 2050, as outlined by the European Green Deal. The Black Sea region has considerable potential for renewable energy sources, particularly offshore wind, solar, and biomass. Due to this potential, the area has become a hub for European initiatives focused on increasing the share of renewable sources in the regional energy mix, and consequently, on energy security and red...

Augmented Reality (AR) technology is gaining relevance in spatial applications, offering interactive ways for users to explore and navigate destinations by overlaying digital information onto real-world environments. As this technology advances, AR maps present both new possibilities and unique challenges in cartographic communication. Despite their growing presence, a structured, user-centered framework for evaluating the usability and effectiveness of AR maps remains underdeveloped. This paper proposes a theoret...

By moving towards a circular and low-emission economy, organisations become important actors in the implementation of resource-efficient and sustainable development. This study analyses the economic and environmental benefits of sustainable work policies and internal management practices of organisations based on circular economy principles. The study highlights that a work environment designed to optimise resource use, reduce environmental footprint and promote -green thinking- forms the basis for both the compet...

This paper focuses on analyzing the behavior of a photovoltaic system installed on a selected building, using the PVcase software to evaluate the influence of temperature on energy performance. The study simulates a typical summer day, comparing the operation of photovoltaic panels during two distinct periods: in the morning, when the ambient temperature is lower, and at midday, when the temperature reaches its peak. Through these simulations, variations in voltage, current, and generated power are determined, as ...

Explosive phenomena represent one of the risks present within mining activities. These phenomena can have disastrous consequences on people, structures and the environment surrounding the mining site. In fact, the explosion uses a wave of pressure and heat that affects everything at the time the accident occurs. Different software were studied and developed by many researchers with the aim of simulate explosive effects in order to define the consequences might be on people and the environment, the development time...

The issue of improving the shape of paraboloidal surfaces of transformable reflectors is still considered one of the most challenging problems. In modern transformable reflectors, the paraboloidal shape of the center of deployable reflectors is ensured by placing nodes of a flexible tape grid. It is accepted that the maximum accuracy of the parabolic surface is achieved under conditions of equal loads of the nodes. Changes in the geometry of the paraboloidal surface of the reflectors mainly develop in the peripher...

Traditional production is more sustainable through local efficiency, meat and spices often come from local farms or markets, reducing the carbon footprint associated with transport, respect for resources and cultural diversity, while industrial methods are oriented towards volume, uniformity and profit, often with higher ecological costs. Traditional pork sausages are prized for their unique flavors and textures, making them a staple in the Romanian tradition. The process of preparing traditional pork sausage has ...

The main objective of the theme taken in study is to bring a contribution to the development of an intensive technology for corn, in conditions of good favorability. The area under study is part of the Timis Plain and is characterized by climatic conditions conducive to corn cultivation, being framed in the very favorable cultivation area in our country. In order to highlight the behavior of the corn hybrids taken in the study, determinations were made regarding: grain production, depending on the hybrid (kg ha-1)...

Hydrogen is considered the energy source which can ensure the global transition to sustainable low-carbon energy systems. Municipalities can become more eco-friendly by adopting and implementing hydrogen-based energy systems. At the beginning of the transition toward carbon neutrality, the municipalities can use the hydrogen mixed with natural gas in the existing natural gas network for food and domestic hot water preparation, and heating and electricity generation, and the hydrogen stored as compressed gas, cryo-...

The study of hydrogen explosions in interconnected spaces is essential for safety in industrial and laboratory settings. Due to its highly flammable nature, understanding hydrogen explosion dynamics is essential for risk mitigation. This paper presents an experimental and computational analysis of a hydrogen explosion in a setup with four interconnected chambers. The experimental stand had transparent walls for direct observation. Ignition was initiated to analyze flame propagation, acceleration, and pressure vari...

Energy remains a key driver of human development and economic growth. The projected increase in the global population to 8.5 billion by 2030 will intensify energy demand and dependence on fossil fuels, the main source of CO2 emissions. This highlights the urgent need for renewable and sustainable energy solutions. Hydrogen is considered a promising clean energy carrier; however, most hydrogen is still produced from natural gas via steam reforming, releasing significant amounts of CO2. Growing attention is therefor...

The stinging nettle (Urtica dioica) and purple dead-nettle (Lamium purpureum) are widely distributed plants, known for their medicinal and nutritional properties. Urtica dioica is particularly valued for its significant mineral content, being widely used in traditional medicine and agricultural practices. Similarly, Lamium purpureum presents notable medicinal properties and typically occupies comparable ecological functions. Calcium is critically important for developing cell walls, growth of plant cells as well a...

Albania faces increasing wildfire pressure amid hot, dry summers, where extreme temperatures and prolonged drought intensify fire danger. To assess how meteorological fire-danger signals correspond to real wildfire outcomes, this study examines the coherence of the Fire Weather Index (FWI) with two key indicators fire occurrence and fire extension using daily data for July August 2017 2021. FWI values were derived from EFFIS daily rasters for all twelve qarks. At the same time, fire counts and burned-area data wer...

It is known that environmental problems are numerous, having a global impact. The quality of the environment involves increasing attention from all countries and requires the urgent adoption and implementation of measures to protect it. Sustainable development is justified by making environmental protection expenditures, especially since the state's fiscal policy ensures the achievement of sustainable development objectives. Through this article, the authors emphasize the need for financial resources in the a...

The recent advances in machine learning led to exponential improvement in the field of artificial intelligence and large language models (LLMs). For university study and university students, LLMs can offer opportunities in several areas. But on the other hand, output from LLMs should be handled using critical thinking. In our research, we wanted to investigate the level of awareness of publicly available LLMs among the bachelor and master students (n=22) of Landscape Engineering program at the Slovak University of...

Cloudberry is a perspective berry crop for extracted peat bog recultivation in Latvia. The study aimed to assess the effect of different fertiliser doses on cloudberry variety Nyby vitality. In 2023, cloudberries were propagated and in September planted outside into outdoor flower beds (24 pots in each bed) with milled raw peat. The beds were separated into four treatments with different doses of complex fertiliser 12-8-16 with micronutrients: control C, N12, N24, and N36 (respectively, 0, 12, 24, and 36 kg ha-1 o...

Nowadays the green finance is a very actually topic, which is becoming increasingly important in the agricultural sector. The sustainable agricultural production is more and more important in the European Union. The requirements and regulations are becoming stricter therefore we have to use sustainable technologies in the agricultural production and we need more and more green investments and financial sources to establish sustainable plants. In this study, we examined a case study and calculated the costs and the...

The growth of environmental responsibility among the youth of the Republic of Tatarstan in recent years demonstrates positive changes in relation to hazardous waste management in Russia. This is especially noticeable among schoolchildren and students. As part of the study conducted among the youth of the Republic of Tatarstan, various methods were used, including questionnaires, to gain a deeper understanding of the level of environmental awareness and willingness to participate in environmental initiatives. The q...

Environmental discourse has moved from -green- to -sustainable- to -circular.- The emerging paradigm is the regenerative economy, which goes beyond minimizing damage to actively improving ecosystems and communities. This perspective draws on long-standing work in ecological economics, systems ecology, and innovation theory without relying on specific frameworks in this abstract. It stresses that natural resources may be finite, yet the possibilities created by knowledge, technology, and institutional evolution are...

Futures Literacy Labs (FLL), as developed by UNESCO, have become a widely replicated and methodologically robust framework for anticipatory governance, now applied across more than 60 countries and multiple domains - from education to innovation policy and sustainability science [1, 2]. Recent studies emphasise their potential for transforming entrenched policy paradigms, surfacing assumptions, and fostering systemic innovation [3, 4]. While the integration of FLL into Green and Sustainable Public Procurement rema...

The European Green Deal (EGD) represents a transformative policy initiative aimed at shifting the EU economy toward climate neutrality and environmental sustainability. While the EGD provides a strategic vision and financial instruments for achieving green goals, its implementation poses substantial challenges for enterprises, including tiny and medium-sized enterprises (SMEs). This paper examines the perceptions of Latvian entrepreneurs regarding the EGDпїЅs anticipated impact on business performance, the key obs...

As climate change accelerates, governments and businesses around the world are faced with the need to adapt to new environmental and economic realities. Innovative adaptation strategies are becoming key to building economies that are not only resilient but also able to thrive in times of uncertainty. Adapting to climate change means adjusting economic systems to new conditions to mitigate negative impacts and harness potential benefits. This involves rethinking the ways we use resources, as well as developing new ...

Solar thermal energy is a widely established source for Domestic Hot Water (DHW) production. However, standard DHW systems rely on external electrical energy to power auxiliary components such as circulation pumps and automation controls. This paper aims to demonstrate the feasibility of a self-sustaining system capable of simultaneous thermal energy recovery and electrical generation, thereby enhancing overall energy efficiency and reducing the carbon footprint. Experimental investigations were conducted on a cus...