Browse

The aim of the study was to develop and validate analytical methods for the detection and quantification of arsenic species (As(III), DMA, MMA and As(V)) in different environmental matrices, including drinking water, surface water, groundwater, and sediments. The experimental tests were performed on a HPLC 1260 Infinity II coupled with an ICP-MS 7850 Agilent. For aqueous matrices, the method was validated within a working range of 10-50 microg/L using an Agilent G3154-65002 guard column and an Agilent G3154-65001 ...

As the offshore oil and gas industry faces mounting pressure to reduce its carbon footprint, Floating Production, Storage and Offloading (FPSO) units are emerging as critical platforms for implementing clean energy innovations. This paper explores the potential for integrating renewable energy sources such as offshore wind, solar photovoltaic, and wave energy with advanced energy storage technologies, including lithium-ion batteries and hydrogen-based systems, within FPSO operations. The hybridization of power gen...

This paper demonstrates the importance of integrating modern technologies in the management of municipal infrastructures and highlights the significant advantages of using a municipal cadastral information system and an external database. With the help of GNSS technology and the total station, this precision requirement is met. The data from the measurements formed the basis for creating municipal cadastral plans that provide a detailed and accurate representation of the municipal networks. The methodology used in...

During the process of adapting renewable energy and ensuring national energy security in the current geopolitical context, technological progress in the field of green energy has received increased attention. This has led to the development of updated policies on investment in onshore renewable energy (which uses wind and solar energy through wind turbines and photovoltaic parks) and offshore renewable energy (which uses tidal, wave, solar, and wind energy through floating photovoltaic parks and wind turbines that...

Green tea is one of the most widely consumed beverages worldwide. It is consumed on its own or in various combinations. Green tea is made from the leaves of the Camellia sinensis plant which originated in Asia. Green tea drinks have many health benefits for consumers due to the compounds present in the raw material - green tea. In order to benefit from all the properties of green tea - antioxidant activity, a wide range of vitamins, provitamins and polyphenolic compounds - the raw materials used are organically gr...

Tea made from the leaves of the Camellia sinensis tea plant is one of the most widely consumed beverages in the world, thanks to its sensory qualities and its content of active ingredients beneficial to health. Black tea contains antioxidants that neutralize oxygen free radicals. In these types of foods, the activity of enzymes such as oxidoreductases, which have NAD- (Nicotinamide adenine dinucleotide) or FMN- (Flavin mononucleotide) dependent coenzymes is very important in this biodynamics. [4], [5] Heme protein...

Due to limited resources, development is associated with a process of transformation, including the performance of the transformation. In 2015, following the adoption of the Paris Agreement and the UN Sustainable Development Goals, the political agenda has shifted towards sustainable development for society, which includes environmental criteria. European Union Member States have strengthened the political agenda on sustainable development with the EU Green Deal initiative. Various development indexes could be emp...

The construction industry plays a critical role in global carbon emissions, contributing significantly to climate change. Embodied carbon, which encompasses all greenhouse gas (GHG) emissions associated with the extraction, production, transportation, and construction of materials, has become a critical focus in sustainable design. Building Information Modeling (BIM), with tools such as Autodesk Revit, Autodesk Forma, One Click LCA and Tully, among others, offers opportunities to streamline embodied carbon analysi...

We live in a world where, globally, the urban population represents 50% of the Earth's inhabitants, and in 2035, it is expected to represent 75%. In Romania, in 2024, 55.81% of the total population lives in urban areas and the difference in rural areas. In the paper, we set out to create an "x-ray" of the commitments that our country has assumed within the 2030 Agenda for Sustainable Development - Goal 11. Romania must find solutions for the sustainable development of communities, based on environmental education,...

In the more developed European countries, because of the importance given to the poplar species, research in this field has increased, while feeling the need to set up an international coordinating forum. Due to the particularly rapid growth, poplar crops soon produce an important quantity of wood mass that satisfies to an increasing extent the wood needs of society. The wood of this species, with special characteristics, has multiple industrial uses: Timber and light packaging, fibro-woody plates and plywood, fur...

The need to develop an integrated testing system for explosion-protected construction equipment with the type of protection "p" arose from practical considerations. The use of a mobile, versatile and adaptable system for the field performance of tests specific to this type of protection applied to explosion-protected construction equipment brings several novel advantages, the most important of which are: grouping all the test equipment required for the tests, elimination of measurement errors by performing several...

Asphalt-resin-paraffin deposits (ARPD) are a complex dispersed system formed by substances that have separated from the oil phase according to various signs. The sediments include asphaltenes, resins, paraffins, liquid hydrocarbons, mechanical impurities and water. In conditions of intensive deposition of ARPD, normal operation of wells is impossible without carrying out work using dewaxing equipment. The purpose of the treatment is the use of chemical reagents in the composition of the emulsion to affect the bott...

An AI camouflage design was used to create an IR camouflage textile structure, utilising Grafco screen printing inks and Chromatex HD10 pigments characterised by high brightness and colour resistance. For vector image editing, CorelDRAW software was employed. The screen-printing process was carried out following these steps: frame selection, screen selection, and image preparation. The reflection index was determined using a spectrophotometric method with a UV-VIS-NIR Perkin Elmer Lambda 950 spectrophotometer, mea...

Aquaculture has become an essential component of global food production, offering a sustainable source of animal protein. However, the sector continues to face significant challenges related to environmental sustainability and suboptimal reproductive efficiency. In recent years, the incorporation of plant-derived bioactive compounds, commonly referred to as phyto-additives, has emerged as a promising, natural alternative to synthetic additives and chemotherapeutics. These substances can improve growth performance,...

This research explores whether multilingual education can boost understanding and involvement in environmental and earth sciences. The central question is whether having different languages in schools helps students grasp different scientific ideas better. A mixed-methods approach was used, gathering qualitative data from interviews and focus groups with teachers and students. Academic performance and how engaged students were in multilingual classrooms were also measured quantitatively. It turns out that students...

The effects of climate change are affecting agriculture in many areas through changing weather, such as unexpected temperature swings and changes in rainfall that threaten food supplies and rural life. Western Romania has its own weather problems, such as long droughts mixed with unpredictable rains, and generally these conditions are starting to slow down agricultural production, which means farmers need to rethink the way they farm. When rains stop being reliable, groundwater can act as a buffer; it helps to kee...

The global society, while continuing operation within the acceptable load on the planet, will not be able to meet the material needs in the future. The circular economy (hereinafter referred to as the CE) may have great potential in solving environmental and economic problems. It is necessary to adopt a system-wide approach aimed at restructuring economic and social relations. The transition to CE will help to save natural resources, minimize waste generation, contribute to achieving a zero-waste society, reduce e...

Aquaculture sector holds significant potential for ensuring food security, supporting economic growth, and contributing to the sustainable use of marine resources within the European Union (EU), aligning with the UN Sustainable Development Goal 14 Life Below Water . However, the potential of aquaculture is constrained by multilevel challenges, including environmental externalities, regulatory complexities, and social acceptance. These challenges are exacerbated by underlying tensions between goals for growing the ...

The development of UAV-based (Unmanned Aerial Vehicles) diagnostic methods has created new opportunities for evaluating high-rise and industrial structures. While traditional multirotor drones are commonly used for visual and thermal inspections, their limited authority control reduces precision when operating close to complex surfaces. This review paper examines the capabilities of omnidirectional UAVs (omnicopters), which offer full control across six degrees of freedom by decoupling translation from rotation. S...

Remote sensing techniques are increasingly used in land surface monitoring processes. The development of satellite systems has led to increasingly complex research in terms of analysis and monitoring of large land areas, with reduced costs and high efficiency. In this research, a satellite scene from 03.07.2024 taken over by the Landsat 9 remote sensing system was used, the scene identifier being LC09_L2SP_186028_20240730_20240731_02_T1, WRS_PATH 186 and WRS_ROW 28, UTM projection system, Datum WGS84, Ellipsoid WG...

The use of remote sensing images in territorial analyses is increasingly used with the development of remote sensing systems. Due to the fact that there are numerous remote sensing systems, both open source and paid, these instruments are widely used in monitoring large areas in order to analyze the dynamics of land use changes. In the present study, an analysis of the ATU Moravita, Timis County, Romania, was carried out based on remote sensing images taken from the Landsat 8 satellite system. Based on the 11 spec...

Non-destructive testing (NDT) of 3D-printed concrete is challenging due to complex geometries and layer-dependent material heterogeneity. Photogrammetry captures surface geometry, but its outputs cannot be directly linked to NDT values. This study presents a workflow that integrates photogrammetric models with rebound hammer measurements and applies radial basis function (RBF) interpolation to visualize near-surface strength. Each measurement point is matched to its 3D coordinates on the mesh, enabling consistent ...