Classical Technology Research Articles

THE PROBLEM OF SOIL DEFLATION IN THE AGROLANDSCAPES OF VOLGOGRAD REGION ARID ZONE

Background. The climate is changing towards aridization and increasing on anthropogenic impact lead, among the other things, for example, a deflation, a loss of soil fertility and a desertification of agricultural landscapes, which negatively gives effect on their environmental sustainability and agricultural productivity. Purpose. It is needed to identify the influence and mechanism of influence of deflationary processes on the ecological balance of agricultural landscapes, and we need to solve some unresolved problems and ways to develop research on wind erosion of soils in the arid zone. Materials and methods. The methods of research of agricultural landscapes were used (methods of FGBNU VNIALMI, FGBNU "Rosinformagrotekh", State Scientific Institution VNIIZPE), which used generally accepted methods. Agricultural landscapes were built by using various agricultural technologies were studied as objects. Results. The revelation of those data proved that the stability of agricultural landscapes is high with direct sowing technology, where the level of deflation is 8%, while the classical agricultural technology it is 31%. The mechanism of soil and territory degradation in the conditions of Volgograd region under the influence of deflation and the level of decrease in arable land productivity, where the damage to agricultural production in the region was amounted to 27.6 billion rubles, have been established also. The influence of the entire complex of anthropogenic impacts on the properties and structure of soils included their erodibility, deflationary activity and, in general, on the formation of ecologically balanced agricultural landscapes which has been proven successfully. The promising areas of research have been identified also in this article. Conclusion. We proved that new experimental material on deflation in the zone of light chestnut soils has been obtained. Soil deflation was pronounced using classical agricultural technology. The need to develop a system of criteria for assessing the territories of the arid zone of the Russian Federation and methods for mapping territories.

Recycling Lithium-Ion Batteries-Technologies, Environmental, Human Health, and Economic Issues-Mini-Systematic Literature Review.

Global concerns about pollution reduction, associated with the continuous technological development of electronic equipment raises challenge for the future regarding lithium-ion batteries exploitation, use, and recovery through recycling of critical metals. Several human and environmental issues are reported, including related diseases caused by lithium waste. Lithium in Li-ion batteries can be recovered through various methods to prevent environmental contamination, and Li can be reused as a recyclable resource. Classical technologies for recovering lithium from batteries are associated with various environmental issues, so lithium recovery remains challenging. However, the emergence of membrane processes has opened new research directions in lithium recovery, offering hope for more efficient and environmentally friendly solutions. These processes can be integrated into current industrial recycling flows, having a high recovery potential and paving the way for a more sustainable future. A second method, biolexivation, is eco-friendly, but this point illustrates significant drawbacks when used on an industrial scale. We discussed toxicity induced by metals associated with Li to iron-oxidizing bacteria, which needs further study since it causes low recycling efficiency. One major environmental problem is the low efficiency of the recovery of Li from the water cycle, which affects global-scale safety. Still, electromembranes can offer promising solutions in the future, but there is needed to update regulations to actual needs for both producing and recycling LIB.

PV SYSTEM MPPT CONTROL: A COMPARATIVE ANALYSIS OF P&O, INCCOND, SMC AND FLC ALGORITHMS

The importance of solar energy is manifested in the growing demand for renewable energy sources around the world, which is fueled by environmental concern and the scarcity of conventional energy. Maximum power point trackers (MPPTS) are necessary in solar energy systems due to atmospheric changes that threaten the efficiency of solar energy systems. This article compares MPPT technologies. Including traditional and modern techniques, and despite the results achieved by classical techniques in maximizing and extracting as much energy as possible, they face a big problem in reaching the bone energy point. These provide modern technologies such as FLC and SMC. They provide exceptional accuracy and excellent response in all environmental conditions but come with additional complexity and higher cost. These technologies are ideal in applications that require high performance under continuously changing conditions or in difficult environments (such as large solar power systems or systems dealing with large fluctuations in illumination). This research aims to conduct a comprehensive study and compare of classical technologies (P&O and IncCond) and modern technologies sliding mode control (SMC, Fuzzy Logic Control – FLC), taking into account factors such as efficiency, complexity and response time. Tests were conducted under different climatic conditions to understand and enhance the efficiency of MPPT technologies. Our study highlights the enhanced performance for methods based on modern technologies. This study provides a comprehensive comparative analysis, and by improving the efficiency and reliability of solar energy systems, our research supports the advancement of sustainable energy solutions.

Advancing virtual learning spaces in Ukraine's educational institutions

In the era of innovative societal development, virtual reality technologies are becoming an integral tool in the educational process. This article aims to analyse the potential of immersive technologies in implementing virtual learning environments in educational institutions in Ukraine. It has been found that immersive technologies are rapidly evolving from being an innovation to a practical and widely used range of tools. The study established that their implementation into the educational policy paradigm is seen as a promising necessity and a factor in intensifying the quality of education. The essence of the phenomenon of immersive technologies has been specified, with their components distinguished, including objective reality, virtual reality, and augmented reality. The specifics of involving immersive technologies in the educational process in Ukrainian educational institutions have been highlighted. An experiment was conducted involving virtual reality technologies in the professional educational environment of future fire safety specialists through the VR programme FLAIM Systems. During the study of the peculiarities of virtual reality technologies in educational modelling, the priority advantages and associated risks of their integration were highlighted. It was found that the potential of immersive technologies stimulates the optimisation of understanding complex concepts and significantly expands the toolkit of future industry specialists. It was determined that engaging visualisations and the experience of using virtual reality technologies offer an intuitive approach to rather abstract concepts that are difficult to reproduce within the framework of classical pedagogical technologies. It has been substantiated that using virtual reality technologies in the educational and management process has significant advantages over the traditional methodology of educational processes, as it actively engages the sensory system and emotional sphere. It has been proven that virtual reality (VR programmes) has significant potential to positively impact the quality of education in educational institutions in Ukraine.

Fast, low-loss, all-optical phase modulation in warm rubidium vapour

Abstract Low-loss high-speed switches are an integral component of future photonic quantum technologies, with applications in state generation, multiplexing, and the implementation of quantum gates. Phase modulation is one method of achieving this switching; however, existing optical phase modulators offer either high bandwidth or low loss – not both. We demonstrate fast (100 MHz bandwidth), low-loss (83(2) % transmission) phase shifting (∆ϕ = (0.90(5))π) in a signal field, induced by a control field, and mediated by the two- photon 5S1/2 → 5P3/2 → 5D5/2 transition in 87Rb vapour. The all-optical nature of the scheme circumvents restrictions of electronic phase modulators, where bandwidth and repetition rate can be limited by the requirement to rapidly modulate high voltages. We discuss routes to enhance both performance and scalability for application to a range of quantum and classical technologies.

Generation of <i>LEPR</i> K nockout Rabbits with CRISPR/CAS9 System

In humans mutations in the LEPR gene, encoding leptin hormone receptor, are associated with the development of morbid obesity, lipid metabolism dysregulation, defects of fertility. In rodents spontaneous mutations in Lepr gene have been described. Lepr knock-out (KO) animals have been generated using classical KO technology or CRISPR/Cas9 system. In rodents lipid metabolism is significantly different from that in humans or rabbits, therefore rabbits are considered as the most relevant model of morbid obesity and lipid metabolism dysregulation in humans, but so far LEPR knock-out rabbits have not been reported. Here using CRISPR/Cas9 system we generated LEPR knock-out rabbit by introducing a deletion of the region around exon 10 of the LEPR gene. We showed that the body weight of the knock-out rabbit was significantly higher than an average body weight of the wild type rabbits. CRISPR/Cas9-mediated technology for the generation of the LEPR knock-out rabbits will allow for the development of the model of morbid obesity and endocrine defects in humans due to leptin receptor mutations.

Effect of thermal change on acoustoelastic effect in concrete

Acoustoelastic technology, which measures changes in ultrasonic wave velocity to determine structural stress, shows significant potential for assessing stress in concrete structures. However, environmental temperature variations can affect ultrasonic wave velocity, thereby influencing the accuracy of acoustoelastic measurements. This study examines the impact of thermal changes on ultrasonic wave velocity in concrete (thermo-acoustoelastic effect) and compares it with changes caused by stress variations (classical acoustoelastic effect). Theoretical expressions for both thermal and classical acoustoelastic effects in a natural coordinate system are derived, and the sensitivity coefficients for each effect are provided. Equivalent elastic constant method is proposed for preliminary numerical analysis of both effects. Experimental investigations further explore how the thermal changes influence the classical acoustoelastic effect. Results reveal that the velocity change due to a unit temperature variation is approximately 40 % of that caused by a unit stress variation. This underscores the significant impact of temperature fluctuations on the application of classical acoustoelastic technology and highlights the need for an effective temperature compensation mechanism to ensure measurement reliability. This finding is of substantial significance for advancing acoustoelasticity-based stress detection technology in concrete structures.

Euler Kernel Mapping for Hyperspectral Image Clustering via Self-Paced Learning

Clustering, as a classical unsupervised artificial intelligence technology, is commonly employed for hyperspectral image clustering tasks. However, most existing clustering methods designed for remote sensing tasks aim to solve a non-convex objective function, which can be optimized iteratively, beginning with random initializations. Consequently, during the learning phase of the clustering model, it may easily fall into bad local optimal solutions and finally hurt the clustering performance. Additionally, prevailing approaches often exhibit limitations in capturing the intricate structures inherent in hyperspectral images and are very sensitive to noise and outliers that widely exist in remote sensing data. To address these issues, we proposed a novel Euler kernel mapping for hyperspectral image clustering via self-paced learning (EKM-SPL). EKM-SPL first employs self-paced learning to learn the clustering model in a meaningful order by progressing samples from easy to complex, which can help to remove bad local optimal solutions. Secondly, a probabilistic soft weighting scheme is employed to measure complexity across the data sample, which makes the optimization process more reasonable. Thirdly, in order to more accurately characterize the intricate structure of hyperspectral images, Euler kernel mapping is used to convert the original data into a reproduced kernel Hilbert space, where the nonlinearly inseparable clusters may become linearly separable. Moreover, we innovatively integrate the coordinate descent technique into the optimization algorithm to circumvent the computational inefficiencies and information loss typically associated with conventional kernel methods. Extensive experiments conducted on classic benchmark hyperspectral image datasets illustrate the effectiveness and superiority of our proposed model.

The influence of the free runners on the decelerated swirling flow from the draft tube cone of hydraulic turbines.

Abstract Nowadays the renewable energy plays an key role in the development of safe and clean energy. Worldwide and especially in Europe the development of renewable energy is focused on development of new wind and solar power plants. Accordingly, these energy technologies introduce high power fluctuations in the electrical system, which are necessary to compensate by other energy sources. To compensate these power fluctuations, the electrical systems use new technologies as high-capacity electric batteries or classical technologies as hydropower. The new technologies as the batteries are used rarely, while the hydropower remain the only technology to response quickly at the electrical systems requirements. The hydropower with the hydraulic turbines has the capability to adapt faster at the electrical system requirements, but for hydraulic turbines this requirement comes with hydrodynamic consequences. Accordingly, at the outlet of the hydraulic turbines (in the conical diffuser), the hydraulic instabilities are developed (vortex rope occurs) accompanied by high pressure fluctuations. The present paper proposes adding free runner at the inlet of the conical diffuser, which rotates on an axle, with null momentum. For this purpose, have been designed and manufactured a series of four free (additional) runners (with different numbers of blades) to assess the performances of this method. Experimental investigations of unsteady pressure and velocity profiles using LDV system were performed downstream of the free runner. The velocity measurements have been performed on three survey axes, by measuring the meridian and circumferential velocity profiles. The unsteady pressure measurements were achieved at the conical diffuser wall on two levels. To better analyse the relevance of the free runners, the Fourier transform is applied on pressure signals. The results will clarify the functionality and limitations of this method for swirling flow control.

Valvular leaflets and epicardial fat have a significant effect on lesion size in RF ablation

Abstract Introduction Radiofrequency (RF) current is the classic ablation technology in the EP lab. Underlying RF ablation parameters, such as RF power, impedance, duration and contact force are used to calculate expected lesion size. Furthermore, lesion indices (LSI, AI) are applied to estimate expected lesion durability and contiguity. Purpose The aim of this ex-vivo study was to assess the influence of valvular tissue and epicardial fat on RF lesion creation. Methods An ex-vivo porcine model was created to create RF lesions under standardized conditions. Temperature was constantly kept at 37°C using a thermostat and a circulation pump was used to imitate blood flow. A contact force sensing ablation catheter (ST SF) was used to create RF lesions using predefined RF parameters (30W/50W, CF 10g, 30sec). Lesions using the same RF parameters were created above and right next to mitral valve leaflets as well as on epicardial fat tissue (figure 1). Lesions were then dissected, and lesion depths and diameters were measured using a digital precision caliper. Results A total of 210 lesions were created. RF lesions ablated on valvular leaflets showed significantly smaller lesion depth and lesion diameter when compared to RF lesions ablated right next to valvular (diameter 8.0±2.0mm vs 10.8±1.8mm; depth 4.4±1.2 vs 7.7±1.6mm, p<0.01). Lesions ablated on epicardial fat were significantly smaller in diameter (9.2±1.5) and depth (6.5±1.8) than purely endocardial lesions (p<0.01). Examples are depicted in figure 1. Conclusions Valvular leaflets as well as epicardial fat tissue have a significant influence on RF lesion creation. RF ablation performed on valvular leaflets or epicardial fat results in significantly (p<0.01) smaller lesions when compared to RF ablations directly on endocardial tissue. This should be considered in ablations of accessory pathways and epicardial procedures.Figure 1

MARKETING FACTORS OF COMPETITIVENESS MEDITERRANEAN MARKET OF TOURIST SERVICES

The article analyzes the system of marketing factors of the competitiveness of the Mediterranean leisure industry since the promotion of tourist services today becomes impossible without the use of modern technologies. It is noted that the digitalization of marketing communications allows for the formation of unique competitive advantages of the Mediterranean tourism industry through the use of an integrated approach to the most effective combination of classical marketing provisions and the potential of modern technologies in the competitive environment of the tourism industry. Classical marketing techniques and digital technologies offer enormous potential for maximizing tourism revenues, increasing tourism demand, improving the quality of supply and facilitating communication. The influence of marketing elements on the competitiveness of the tourism industry of the Mediterranean countries is evaluated. It has been proven that this influence is uneven and differs according to the destination and the stage of creation and provision and implementation of the tour service. This influence is observed most in the sphere of pricing in Spain and least - in the sphere of tourism product promotion in such European countries as Albania and African countries - Morocco, Algeria and Tunisia. Directions for the analysis of the competitiveness of destinations in the Mediterranean region are proposed, which can be carried out according to different criteria and through different perspectives, such as: customer expectations, tourist satisfaction and service value, tourist and destination motivations, branding, destination attractiveness, destination sustainability and destination value. It is emphasized that, in contrast to classical marketing, modified tourism marketing was formed as a mix that includes seven elements: tourism product, tourism product pricing, distribution of tourism services, tourism promotion, human potential, service provision process and customer service, and which to varying degrees provide competitive advantages of the countries of the Mediterranean basin. It is shown that the competitiveness of the Mediterranean tourism industry has a double structure. Its first element is the process of positioning tourist products on the market of leisure services, the second is the efficiency of the operational activities of tour operators. It has been confirmed that the drivers of the main changes in the market of tourist services of the Mediterranean that have occurred recently are the intensive introduction of information technologies in marketing activities, where the main trends in the development of the leisure industry have become the globalization of the tourist business and the dominance of Internet technologies in the system of promoting tourist services.

A review on model predictive control strategies for AC motor drives

AbstractIn the past decade, model predictive control (MPC) has been widely used in AC motor drives. Although a series of improved MPC strategies have been proposed, researchers are still seeking more effective solutions for different application backgrounds and application requirements to achieve the goals such as algorithm simplification, weighting factor design, parameter robustness enhancement, current/torque ripple suppression, and so on. In this paper, aiming at the above problems, the MPC strategy and its optimisation technology for AC motor drive system are comprehensively reviewed. Firstly, this paper introduces the classical MPC technology with the permanent magnet synchronous motor drive system fed by two‐level voltage source inverter as the control object. Secondly, this paper introduces and discusses the existing MPC optimisation methods from the aspects of current/torque ripple suppression, algorithm simplification, weight factor design and parameter robustness enhancement. Finally, based on the current industrial development requirements for AC motor drive systems and the research status of MPC optimisation methods in the existing literature, the current challenges and future trends of MPC technology are discussed.

A Comprehensive Review on Deep Eutectic Solvents: Their Current Status and Potential for Extracting Active Compounds from Adaptogenic Plants.

Deep eutectic solvents (DESs) have attracted attention from researchers as novel compounds for extracting active substances because of their negligible toxicity, polarity, and ability to be tailored depending on the experiment. In this review, we discuss deep eutectic solvents as a promising medium for the extraction of adaptogenic compounds. In comparison to traditional methods, extraction with the use of DESs is a great alternative to the excessive usage of harmful organic solvents. It can be conducted in mild conditions, and DESs can be designed with different precursors, enhancing their versatility. Adaptogenic herbs have a long medicinal history, especially in Eastern Asia. They exhibit unique properties through the active compounds in their structures, including saponins, flavonoids, polysaccharides, and alkaloids. Therefore, they demonstrate a wide range of pharmaceutical effects, such as anti-inflammatory, antibacterial, and anticancer abilities. Since ancient times, many different adaptogenic herbs have been discovered and are well known, including Panax ginseng, Scutellaria baicalensis, and Schisandra chinensis. Active compounds can be extracted using standard methods, such as hydrolyzation, maceration, and conventional reflux extraction. However, due to the limitations of classical processing technologies, there has been a need to develop new and eco-friendly methods. We focus on the types of solvents, extraction efficiency, properties, and applications of the obtained active compounds. This review highlights the potential of DESs as eco-friendly alternatives for extracting bioactive compounds.

Features of yogurt technology with germinated grains

Among the wide assortment of dairy products, a special role is played by high-protein fermented milk products – yogurts, the production and assortment of which must be significantly increased. It is yogurts that are in great demand among the population as a light, complete snack, and they have long since become components of various dishes. Therefore, we consider it expedient to expand the range of such a necessary fermented milk product as yogurt by adding sprouted cereal grains to its composition, as the need to consume nutritionally complete products is growing and there is a need to create dairy products with a new, improved composition. The work presents the technology of making yogurt using germinated grains of cereal crops of the “CHOICE” company. Yogurt is made according to the classical technology, the bacterial preparation YoFlex Creamy 2.0 and Premium 2.0 was used for the fermentation of the normalized mixture. 4 samples of yogurt were obtained: Control, sample 1 – using an additive in the amount of 3 %, sample 2 – using an additive in the amount of 6 %, sample 3 – using an additive in the amount of 10 %. A study of dairy raw materials for compliance with the requirements of current regulatory documentation was carried out, as well as a study of the finished product – yogurt with sprouted cereal grains for compliance of organoleptic, physico-chemical and microbiological indicators with the requirements of the Standard. The titrated acidity in milk was determined according to DSTU 3624-92 “Milk and dairy products. Titrometric methods of determining acidity”. The active acidity of milk and yogurt was measured with an electronic pH meter “Muttler Toledo MP220” and according to GOST 19881-74 “Potentiometric analyzers for controlling the pH of milk and products. General technical conditions”. Organoleptic indicators were determined according to DSTU 3662: 2018 “Cow's milk. Procurement requirements”. Determination of protein, lactose, mass fraction of fat and density of milk was carried out on the “Ecomilk” device. The general rules of sampling were carried out according to DSTU IDF 117B:2003. Acidity, as well as organoleptic indicators and safety indicators were controlled in the finished product. It was established that the optimal percentage of the use of sprouted grains is 6 %, because such a percentage has a positive effect on the formation of the taste and aroma of yogurt, which is very important for the consumer. We recommend consuming yogurt within 12–14 days, as yogurt loses its qualities and safety characteristics in the future.

TRADITIONAL AND MODERN METHODS OF TEACHING MUSIC DISCIPLINES

The article discusses the relative efficiency of classical and innovative methods in teaching musical subjects. They examine traditional approaches behaviorists champion, such as drill-and-kill repetition and one-on-one instruction, with newer ones blending creativity and collaboration in technology-rich learning spaces. Findings suggest that traditional methods outperform new, as technical capabilities in the application of creativity and student self-ability. Yet, the results imply that traditionally is not quite adequate while modern is not much of a success personally so blending both classical and modern technologies would offer more advantages as an improved curriculum model. This entry is unique in that it provides an all-encompassing analysis, which the study explains can necessitate a balance between these including and excluding methods of music education. Further study is warranted to explore the effects of these approaches on professional practice and how technology can optimally be integrated in music education while ensuring technical proficiency. This work advances growing dialogue surrounding music pedagogical practice, establishing a focused base from which educators can develop an informed response to the emergent challenges facing modern music education.

Electrically interfaced Brillouin-active waveguide for microwave photonic measurements

New strategies for converting signals between optical and microwave domains could play a pivotal role in advancing both classical and quantum technologies. Traditional approaches to optical-to-microwave transduction typically perturb or destroy the information encoded on intensity of the light field, eliminating the possibility for further processing or distribution of these signals. In this paper, we introduce an optical-to-microwave conversion method that allows for both detection and spectral analysis of microwave photonic signals without degradation of their information content. This functionality is demonstrated using an optomechanical waveguide integrated with a piezoelectric transducer. Efficient electromechanical and optomechanical coupling within this system permits bidirectional optical-to-microwave conversion with a quantum efficiency of up to −54.16 dB. Leveraging the preservation of the optical field envelope in intramodal Brillouin scattering, we demonstrate a multi-channel microwave photonic filter by transmitting an optical signal through a series of electro-optomechanical waveguide segments, each with distinct resonance frequencies. Such electro-optomechanical systems could offer flexible strategies for remote sensing, channelization, and spectrum analysis in microwave photonics.

Investigation of the influence of milk protein genotype on the process of fermentation of milk curds by mesophilic lactic acid streptococci

The relevance of this study lies in the fact that the majority of commercial milk processed into fermented dairy products is a mixture of β-casein genotypes. The increasing use of A2 milk in the dairy industry necessitates the development of scientifically grounded technologies for the production of fermented products, as casein genotype modifications can affect the course of technological processes and require adjustments to production parameters. The study aimed to determine the impact of genetic modification of the β-casein protein in cow’s milk on the fermentation process of milk mixtures during the production of fermented dairy products. Research methods included chemical, physical, organoleptic, and microbiological methods (determination of the quality indicators of raw milk and fermented milk curds), and technological methods (determination of acid formation activity and viscosity). The initial characteristics of raw milk were investigated according to genotype, revealing no direct correlation. Changes in the physicochemical, microbiological, and organoleptic properties of fermented milk curds during biotechnological processing and storage were examined. Optimal technological process regimes were selected, and technological methods were chosen to minimise the influence of secondary factors on the experiment. A mixed culture preparation of mesophilic lactic acid lactococci, including L. Lactis ssp., was chosen as a starter culture. It was established that all 13 milk samples were suitable for biotechnological processing using mixed cultures of mesophilic lactic acid bacteria. As a result, it was concluded that the production of fermented dairy products from raw milk with the presented β-casein genetic modifications, A1A1, A1A2, and A2A2 – using L. lactis ssp. cultures – is possible using the classical technology and does not require adjustment of the technological conditions. The obtained results can be used in the dairy industry when developing technologies for fermented dairy products from A2 raw milk

РАЗРАБОТКА ТЕХНОЛОГИИ ФУНКЦИОНАЛЬНЫХ МОЛОЧНЫХ ПРОДУКТОВ СО СПЕЦИЯМИ

The use of dairy products with herbs and spices is an innovative solution in the field of food technology, opening up new opportunities for the development of unique healthy food products, attracting the attention of consumers around the world. The purpose of research is to develop a technology for functional dairy drinks with antioxidant properties based on biologically active substances of plant raw materials, aimed at improving the health and longevity of people for the purpose of potential use in the food industry. The inclusion of turmeric and ginger in the composition of dairy drinks determines a wide range of unique properties, enhancing the biological value, functionality of dairy drinks and expanding the range of products for various groups of the population. The chemical composition of plant ingredients contains a number of active groups of flavonoids and polyphenols with strong antioxidant properties that affect the human body by neutralizing free radicals, enhancing the human immune system and ensuring longevity. The object of the study was milk drinks enriched with biologically active substances of raw materials of plant origin. To achieve the objectives, experimental studies were conducted to develop a recipe for fresh milk drinks with spices and herbs. Based on the results of the examination of experimental samples for physicochemical and organoleptic indicators, the best samples with high quality ratings were established. Recipes for 8 types of functional milk drinks with spices Zdorov'e were developed with a justification for the dose of plant ingredients, the stage of their introduction, technological modes of milk pasteurization and features of the preparation of spices for introduction into the milk base were worked out. The data on the shelf life of the new line of fresh milk drinks were obtained. The recommended shelf life is 14 days at a storage temperature of 2 ±1 °C. The new technology does not require specialized equipment, the duration of the technological process is similar to classical technologies.

Approaching Environmental Sustainability through Energy Optimization in Polyisoprene Production

The global energy crisis, forced by fossil fuel shortages and supply chain disruption, stimulates EU policymakers to find alternative energy replacement. Modifying the present polyisoprene footwear production plant into a hybrid system by combining different energy sources raises energy efficiency. The proposed hybrid system incorporates classical and solar-based technology, resulting in energy optimization by utilizing waste heat recovery. By installing an economizer for feeding water preheating using flue gas recovery, it results in the volume of the flue gases lowering from to , or by 11.13%, while the flue gases’ temperature is lowered from 204 °C (477.15 K) to 50.99 °C (324.14 K). Further improvement in combining feed water and air preheating results in natural gas savings of 12.05%, while the flue gases’ exhaust temperature is decreased to 30.44 °C (303.59 K). The third option, using condensate heat recovery and feeding water preheating using flue gases, showed natural gas savings as much as 17.41% and exhaust flue gases cooling to 112.49 °C (385.64 K). The combination of condensate heat recovery, combustion air and feed water preheating results in the volume of the flue gases being lowered by 20.42% and natural gas savings by 20.24%, while the flue gases’ temperature is reduced to 45.11 °C (318.26K). The proposed solar application in polyisoprene production predicts the hybrid system showing fuel savings ranging from 77.96% to 87.08% in comparison to the basic process. The greatest fuel savings of 87.08% is shown in a solarized polyisoprene footwear production plant with combustion air and feed water preheating combined with the condensate return system. Integrating the solar heat into the regular industrial process of polyisoprene production showed great potential and showed environmental sustainability through energy optimization in polyisoprene production

Guest Editorial: Quantum industry: Applications in quantum communication (Quantum.Tech Europe 2022)

AbstractQuantum technology harnesses the principles of quantum mechanics to accomplish tasks in a different way as compared to the classical technologies. This includes quantum computing, which uses qubits for parallel information processing, greatly enhancing computation speed and entanglement and empowering problem‐solving abilities. Quantum communication provides secure data transmission through quantum cryptography, while quantum sensing offers improved measurement precision, benefiting areas such as cryptography, material science, and pharmaceuticals. Additionally, the implementation and commercialisation of quantum technology involve transitioning theoretical quantum concepts into practical applications and marketable products. To achieve widespread adoption of quantum industry, significant research efforts are crucial among academia, industry, and government.