Technical Level Research Articles

Green connection to the world: Building regional responsible sustainable development strategies

AbstractGreen development and solutions to environmental problems rely on local conditions and green connections between regions during their development. However, it is less understood whether a region's emission of carbon and pollutants is moderate compared to its development. The study proposes the ‘green connection of regional development’ concept from the consumption perspective to enhance the understanding and measurement of regional capacity towards green development and responsible production and consumption. Data envelopment analysis was performed to evaluate the local and embodied emissions of eight pollutants for 30 provinces in China from 2012 to 2017. Twenty provinces had optimal capacity of green growth within the region and 15 had an optimal green connection of regional development. Suboptimal levels of overall green growth and green connection of regional development efficiencies were due to insufficient pure technical and scale efficiency levels, with a stronger impact of the former.

Exploring the Lexis of Art Through a Specialized Corpus: A Bilingual Italian-English Perspective

This study presents an application of a specialized corpus, including texts specifically related to art and cultural heritage, to the analysis of artistic vocabulary in a bilingual (Italian-English) perspective, focusing on the Italian lemmas opera, figura and disegno and their English translation equivalents. The starting point is the Italian corpus that is being developed under the research project Lessico multilingue dei beni culturali (‘Multilingual art and cultural heritage vocabulary’, LBC), available online in open access through NoSketchEngine. First, a lemmatized nounlist ordered by frequency of occurrence is extracted from the corpus, leading to the selection of the above-mentioned focus words, in view of both their frequency and status as technical terms within the domain of art (though exhibiting different levels of technicality). These are further investigated by extracting collocates and KWIC concordances, leading to the identification of several specialized collocations and domain-specific senses. The analysis subsequently moves from corpus to dictionary, exploring the extent to which the patterns emerging from corpus investigation are accounted for in the entries for opera, figura and disegno in four Italian-English bilingual dictionaries. From this viewpoint, the study also aims to show how specialized corpus data can be used for the extraction of collocations, terms, and context-specific word senses, which may in turn be used both to enrich the information provided by currently available general dictionaries, and to work towards the creation of a large-scale specialized bilingual dictionary, which is non-existent to date.

From Image to Imagination: Exploring the Impact of Generative AI on Cultural Translation in Jewelry Design

The current proliferation of artificial intelligence (AI) is prominently shaping the design industry. Generative AI, such as text-to-image and image-to-image models, has gained widespread use, notably for its efficiency and quality improvements. However, their potential to aid in cultural translation within creative design is underexplored. To address the existing gap, this study aims to assess the impact of generative AI on cultural translation within jewelry design. Specifically, a comprehensive study was conducted through a design-action experiment, collecting 46 student designers’ design-action data and self-reports, and enlisting the evaluation from 30 design experts. The findings highlight the substantial influence of generative AI on the ideation phase of jewelry design, especially in depth rather than breadth, and in the shape factor at the technical level such as detailization and unexpected composition. Leveraging AI image generators has shifted the designer’s focus from technical tasks to strategic decisions related to visual appeal, cognitive engagement, and emotional resonance. Furthermore, the challenges inherent in human–AI collaboration have been revealed, stemming from communication difficulties and the risk of fixating on specific details to stylistic constraints. Based on data analysis, a novel hybrid model regarding human–AI co-creation on cultural translation in jewelry design is proposed. Overall, this current study offers a valuable reference point to future research in terms of examining the effect of emerging technologies on cultural translation in creative fields.

THE ROLE OF THE MACHINE-BUILDING CLUSTER IN ENSURING THE DEFENCE CAPABILITY OF UKRAINE

Topicality. Given the geopolitical situation, where Ukraine faces threats to its sovereignty and territorial integrity, ensuring defense capability becomes the most important task. The development of modern technologies in the defense industry, including Industry 4.0, emphasizes the need to supply the Ukrainian army with high-quality foreign equipment and technologies. Cooperation with leading international corporations in the defense sector opens up opportunities for technology exchange, investments, and the integration of new possibilities for the development of the Ukrainian defense industry.Ukrainian machine-building enterprises possess significant potential in the production, repair, and modernization of military equipment, which can be utilized to meet the army's needs. The gradual localization of Western technology production in Ukraine will contribute to reducing dependence on imports and increasing production volumes. The development of the service, repair, and restoration sector of military equipment can positively impact employment and the socio-economic situation in regions of Ukraine.In particular, the development of modern defense potential is a strategically important task for any state. Ensuring the availability and effective use of modern military technology is a necessity for maintaining a peaceful atmosphere and national security. Collaboration with leading international companies and the implementation of modern production technologies equate Ukrainian machine-building to global leaders, opening the way for foreign investments and the development of new technological sectors in Ukraine. The implementation of Industry 4.0 and collaboration with international partners allow for a significant improvement in the technical level and efficiency of Ukrainian armed forces, ensuring their readiness to face challenges and threats. The development of innovative management technologies and production culture provides Ukrainian enterprises with a competitive advantage in the global market, promoting their further growth and development.Aim and tasks. The aim of the research is to analyze and assess the potential of the machine-building cluster in the context of ensuring Ukraine's defense capability in a complex geopolitical environment.The research tasks include: conducting an analysis of the current situation in development of machine-building clusters in Ukraine and the necessity of implementing modern technologies in machine-building ; evaluating the role and potential of the machine-building cluster in ensuring the defense capability of the country; analyzing the possibilities of cooperation with leading international companies in the defense industry; studying the capabilities of Ukrainian machine-building enterprises in the production, repair, and modernization of military equipment; developing the key provisions of the strategy for the gradual localization of Western technology production in Ukraine; analyzing the impact of the development of the service, repair, and restoration sector of military equipment on the socio-economic situation of the country's regions based on the implementation of modern technologies and management practices to enhance the competitiveness of Ukrainian machine-building enterprises.Materials and Methods. This study explores the advantages and prospects of forming machine-building clusters, their impact on the socio-economic development of the country, and the enhancement of defense capabilities through the use of comparative, systemic-structural, analytical, theoretical generalization, and empirical observation methods.Research results. The research has established that the machine-building cluster in Ukraine possesses significant potential for ensuring the country's defense capability within a complex geopolitical context. It is emphasized that collaboration with leading international companies in the defense industry provides opportunities for technology exchange, investment attraction, and enhancement of the Ukrainian defense production potential. This is due to the fact that Ukrainian machine-building enterprises have substantial capabilities in the production, repair, and modernization of military equipment, which can be utilized to meet the army's needs. Additionally, the gradual localization of Western technology production in Ukraine will contribute to reducing dependence on imports and increasing production volumes.Conclusion. The research findings attest to the significance of the machine-building sector cluster in the context of ensuring Ukraine's defense capability. Collaboration with international partners and the implementation of modern production technologies are key factors in enhancing the competitiveness and expanding the potential of the Ukrainian defense industry. The development of this sector is a strategically important task for ensuring national security and strengthening Ukraine's international standing.

Engaging fishers in sea turtle conservation in the Mediterranean Sea

In the Mediterranean Sea, more than 121,000 sea turtles are incidentally caught each year by a variety of fishing gears, with more than 33,000 deaths and a mortality rate ranging from 10 to 50% depending on the type of fishing gear. Defining how to engage the fishers who are directly involved in incidental catches of turtles is critical to raise their interest, increase awareness and foster their collaboration with the scientific community and authorities. We developed a conceptual model to define the objectives of sea turtle conservation (Final Targets, FTs) at a management, technical, educational, and social level. The achievement of FTs was assessed through four Indicators (interest, scepticism, awareness, cooperation) based on the perception and behaviour of fishers. A 3-phase roadmap was set to engage fishers: 1) Meeting, it is the initial contact between the scientific community and the fishers to create baseline information on where, when, and how bycatch occurs; 2) Deepening the knowledge, it mainly consists on trainings to increase fishers’ awareness of good practices and sustainable fisheries; 3) In the field, where scientists and fishers test innovative bycatch reduction devices (BRDs) aboard on commercial fishing vessel to comprehend the perspective of fishers in terms of the technical solutions proposed by scientists. Combining a theoretical and an empirical approach, this study provides successful indications (bycatch hot-spots, technological innovation of fishing gear, communication strategies, eco-labelling, improved sea turtle survivability) on how to achieve large-scale sea turtle conservation, which could be replicated in other areas.

National Defense in the Resolution of Border Disputes: The Experience of Indonesia and Malaysia

The issue of national defense predominantly refers to the protection of the sovereignty of an independent state. This article addresses such aspect country’s sovereignty as the inviolability of borders.The objective of this research is to investigate how the dimensions of national defense, including both military and non-military factors, contribute to the resolution of border disputes between Indonesia and Malaysia. Specifically, the study aims to explore the role of economic growth and infrastructure development in the borderlands as crucial elements in the broader context of national defense and territorial sovereignty.The methodological basis of the research constitutes а qualitative method, triangulation technique, and purposive techniques (interviews and focus group discussions). The research finds that institutions to handle problems at the border already exist, but there are still some obstacles at the technical level; for example, centers and regions have problems with their coordination. This research contributes to the field by highlighting the existence of institutions for border issue management, addressing technical obstacles, emphasizing the role of economic factors, and underscoring the importance of considering transnational crime threats. It is concluded that today when solving border issues, it is also necessary to pay attention to economic well-being and the threat of transnational crime, if the last is considered from a non-traditional security perspective.

Entrepreneurship in the Era of the Digital Economy. Neuroeconomic Aspect

Total technologization inherent in the present encourages economic units, and especially enterprises, to adapt to the requirements of the era of the digital economy. In order to achieve the main goal of activity, entrepreneurs need to make decisions, applying not only generally accepted economic knowledge, but also take into account the emotional state, values and ethical preferences of their consumers. The issue of synergistic application of digital capabilities and scientific achievements in brain research and their adaptation to the economic sphere in business activities is becoming relevant. The purpose of the study is the analysis of entrepreneurial activity in the era of the digital economy in the aspect of neuroeconomic development. A high technical and intellectual level in the era of the digital economy requires entrepreneurs to be constantly up-to-date. An interdisciplinary approach is becoming more effective in training entrepreneurs, which includes not only economic and digital sciences, but also psychology and neurophysiology, which allows expanding the methodology and deepening knowledge about a person. The study of the influence of brain activity on the emotional mood and preferences of consumers has modified standard marketing approaches. The synthesis of marketing science with neurophysiology expands the opportunities of entrepreneurs to study customer preferences and improve their products. Synthesizing the economic meaning of enterprise activity and the way to achieve this meaning led to the digitalization of business activity. Innovative solutions of enterprise activity and the use of digital technologies are the key factors in the development of contemporary enterprises.

ВПЛИВ ШВИДКОСТІ ТРАНСПОРТУВАННЯ ВАНТАЖУ СТРІЧКОВИМ КОНВЕЄРОМ НА ПИТОМЕ ЕНЕРГОСПОЖИВАННЯ НА КОНВЕЄРНОМУ ТРАНСПОРТІ

The method of work is significant to the nature and approximation of the empirical supply of feedstock energy consumption for the transport of dry waste by a string conveyor, which operates in the drains of the DolzhanskaKapitalna mine, due to the speed of transport of waste. Significant energy consumption for transporting goods is an unknown warehouse assessment of the technical level of the stitch conveyor, which is a current scientific and practical requirement. The article examines the non-linear nature of the dependence of weighted average specific energy consumption for the transportation of bulk cargo by a mine belt conveyor on the speed of cargo transportation. The function of the weighted average specific energy consumption for the transportation of bulk cargo by a belt conveyor is obtained in a theoretical way using the method of technological calculation of a mine belt conveyor. The influence of the unevenness of the cargo flow on the conveyor on the formation of weighted average specific energy consumption was carried out empirically using the results of studies of the cargo flow and the power consumption of the belt conveyor of the "Dolzhanska-Capitalna" mine, conducted in 2011 by the "Dongiprovuglemash" institute. Using the method of least squares, empirical coefficients of the approximated dependence of the weighted average specific energy consumption for the transportation of bulk cargo by a belt conveyor of a mining enterprise on the speed of cargo transportation, which has the form of a square trinomial, were obtained. The results of the work can be determined by designing the conveyor transport of mining enterprises, determining the energy intensity and technical level of the mine stitch conveyor, and clarifying the nature of the mechanical characteristics of the stitch conveyor

EFFICIENCY OF LOSSLESS DATA COMPRESSION ALGORITHM MODIFICATION

The current level of development of information technologies causes a rapid increase in the amount of information stored, transmitted and processed in computer systems. Ensuring the full and effective use of this information requires the use of the latest improved algorithms for compaction and optimization of its storage. The further growth of the technical level of hardware and software is closely related to the problems of lack of memory for storage, which also actualizes the task of effective data compression. Improved compression algorithms allow more efficient use of storage resources and reduce data transfer time over the network. Every year, programmers, scientists, and researchers look for ways to improve existing algorithms, as well as invent new ones, because every algorithm, even if it is simple, has its potential for improvement. A wide range of technologies related to the collection, processing, storage and transmission of information are largely oriented towards the development of systems in which graphical presentation of information has an advantage over other types of presentation. The development of modern computer systems and networks has influenced the wide distribution of tools operating with digital images. It is clear that storing and transferring a large number of images in their original, unprocessed form is a rather resource-intensive task. In turn, modern multimedia systems have gained considerable popularity thanks, first of all, to effective means of compressing graphic information. Image compression is a key factor in improving the efficiency of data transfer and the use of computing resources. The work is devoted to the study of the modification of the data compression algorithm The Quite OK Image Format, or QOI, which is optimized for speed for the compression of graphic information. Testing of those implementations of the algorithm, which were proposed by its author, shows such encouraging results that it can make it competitive with the already known PNG algorithm, providing a higher compression speed and targeting work with archives. The article compares the results of the two proposed modifications of the algorithm with the original implementation and shows their advantages. The effectiveness of the modifications and the features of their application for various cases were evaluated. A comparison of file compression coefficients, which were compressed by the original QOI algorithm, with such coefficients, which were obtained as a result of the application of modifications of its initial version, was also carried out.

Multimedia Animation Based Basketball Learning Media

The goal of this research and development is to provide multimedia animated shooting learning content for basketball games. The Research and Development (R&D) design from Borg and Gall is used in this study. 130 students enrolled in physical education classes made up of 50 students in the small group trial, 80 students in the field trial, and 50 students evaluating the media's efficacy served as the study's subjects. Test the efficacy of the media by utilizing basketball in order to ascertain the level of students' technical proficiency in basketball before and after receiving the intended learning media treatment for basketball, treatment of animated multimedia-based learning materials for basketball. Basketball technical level was determined from the initial test to be 35.35135. The pupils' capacity to execute basketball moves after receiving therapy based on multimedia animation was 71.324324. This indicates that this basketball method learning tool is successful in enhancing students' understanding of the game. The following conclusions may be drawn from the development research findings: (1) Animation- and multimedia-based instructional materials for teaching basketball technique to students can be created and used. (2) The multi-media animation-based instructional materials that were created for teaching basketball technique demonstrated that there was a substantial difference between before and after treatment based on the difference in student pre-test and post-test scores.

(Inner-Product) Functional Encryption with Updatable Ciphertexts

We propose a novel variant of functional encryption which supports ciphertext updates, dubbed ciphertext-updatable functional encryption. Such a feature further broadens the practical applicability of the functional encryption paradigm and allows for fine-grained access control even after a ciphertext is generated. Updating ciphertexts is carried out via so-called update tokens which a dedicated party can use to convert ciphertexts. However, allowing update tokens requires some care for the security definition. Our contribution is threefold: We define our new primitive with a security notion in the indistinguishability setting. Within CUFE, functional decryption keys and ciphertexts are labeled with tags such that only if the tags of the decryption key and the ciphertext match, then decryption succeeds. Furthermore, we allow ciphertexts to switch their tags to any other tag via update tokens. Such tokens are generated by the holder of the main secret key and can only be used in the desired direction.We present a generic construction of CUFE for any functionality as well as predicates different from equality testing on tags which relies on the existence of indistinguishability obfuscation (iO).We present a practical construction of CUFE for the inner-product functionality from standard assumptions (i.e., LWE) in the random-oracle model. On the technical level, we build on the recent functional encryption schemes with fine-grained access control and linear operations on encrypted data (Abdalla et al., AC’20) and introduce an additional ciphertext updatability feature. Proving security for such a construction turned out to be non-trivial, particularly when revealing keys for the updated challenge ciphertext is allowed. Overall, such construction enriches the set of known inner-product functional encryption schemes with the additional updatability feature of ciphertexts.

Effect of EDDS on the rhizosphere ecology and microbial regulation of the Cd-Cr contaminated soil remediation using king grass combined with Piriformospora indica

The negative impacts of soil heavy metals composite pollution on agricultural production and human health are becoming increasingly prevalent. The applications of green chelating agents and microorganisms have emerged as promising alternate methods for enhancing phytoremediation. The regulatory effects of root secretion composition, microbial carbon source utilization, key gene expression, and soil microbial community structure were comprehensively analyzed through a combination of HPLC, Biolog EcoPlates, qPCR, and high-throughput screening techniques. The application of EDDS resulted in a favorable rhizosphere ecological environment for the king grass Piriformospora indica, characterized by a decrease in soil pH by 0.41 units, stimulation of succinic acid and fumaric acid secretion, and an increase in carbon source metabolic activity of amino acids and carbohydrates. Consequently, this improvement enhanced the bioavailability of Cd/Cr and increased the biomass of king grass by 25.7%. The expression of dissimilatory iron-reducing bacteria was significantly upregulated by 99.2%, while there was no significant difference in Clostridium abundance. Furthermore, the richness of the soil rhizosphere fungal community (Ascomycota: 45.8%, Rozellomycota: 16.7%) significantly increased to regulate the proportion of tolerant microbial dominant groups, promoting the improvement of Cd/Cr removal efficiency (Cd: 23.4%, Cr: 18.7%). These findings provide a theoretical basis for the sustainable development of chelating agent-assisted plants-microorganisms combined remediation of heavy metals in soil.

Paradossi dell’acqua. Un dialogo tra opposti

This issue of Ri-Vista reflects on the inseparable link between forms of water and landscapes and on the meanings that this relation assumes in the design, both when it is explicit or implicit. It investigates the paradoxes of water and analyses the different attitudes, both on conceptual and technical levels. Moving from the different interpretative points of view hosted in this issue, we have chosen to present in this editorial two interrelated and complementary reflections about the opposite effects generated by increasingly recurrent climatic phenomena. The different contributions present a dialectic of opposites, often insufficiently investigated and sometimes inevitably ambiguous, which involves a continuous change of perspective in the reader. Following this "fluid" path, we met floods and storms as much as the drying up of the countryside and growing droughts. But these are the paradoxes of water and we think that today landscape design expresses entirely this duality. With this issue of Ri-Vista we collected experiences, projects and reflections that illustrate the propulsive role of water in the construction of contemporaneity. It is divided into 4 sections called: Narratives; Water territories, identity and contexts; Landscapes for water; Waters for living. They present the different strategies we can use in the management of water and how they become central, even when these are complementary to the different project aims.

Public and private healthcare administration priorities in new electronic age

The work defines the such priorities of healthcare administration as creation of free-tax medical town-campuses and reduction of costs for accessibility of medical services, increase in service speed and improvement in the quality, constant process of improving the qualification, wide-regional network management, combination of public and private insurance, essential increase in healthcare costs of GDP, striving for the highest standards of technical level, ensuring the non-profitability of medical organizations, combining various stages of medical services, electronic transparency and direct communication of financial reporting with some needful maintaining of commercial secrets and bank accounts, usage of wide outsourcing practices.

Identification of Key Factors of Digital Transformation of Manufacturing companies Using Hybrid DEMATEL Method

This study constructs the influencing factors system of digital transformation of manufacturing companies and determines the influencing factors of digital transformation of manufacturing companies from the technical level, the ability level, the environmental level in order to promote the process of digital transformation of manufacturing companies, consider the impact of technology, capacity and environment on digital transformation of manufacturing. To identify the most important factors and crucial factors, developed a model for identifying critical factors based on the hybrid DEMATEL (Decision-Making Trial and Evaluation Laboratory) methodology. Combined with the related data, this study carries out empirical analysis to demonstrate and verify the influencing factors system of digital transformation of manufacturing companies with the help of hybrid DEMATEL method. The empirical analysis results indicate that the investment share of digital technology, the benefit level of company of manufacturing industry and government support are the crucial factors, and the construction level of digital platform, the technical level of employees, level of construction of digitized equipment and industrial supporting capacity are the non crucial factors. The feasibility and validity of hybrid DEMATEL method are verified.

Analysis of tennis technical movement training strategy in colleges and universities under the background of big data technology

Abstract This paper first explains the tennis technical action representation and matching technology, using the Euler angle method to represent the coordinates of the tennis action gesture, realizing the deconstruction of the action gesture through the gesture-solving algorithm, and then using the weighted Euclidean distance to match the tennis gesture to the action. Secondly, we constructed the tennis technical movement training strategy for colleges and universities based on the task-driven teaching method, and gave the teaching experiment method to analyze the effectiveness of the strategy. Finally, the data was analyzed by examining the muscle characteristics of tennis technical movements and the teaching effect of task-driven teaching. The results showed that the maximal EMG integral value of the muscles was 32.91uV.s in the level 1 group and 87.91uV.s in the level 2 group, and the maximal angular velocity of the ankle-knee-hip joints was 645.23±189.42°/s and the minimum angular velocity of the hip joints was 461.87±115.08°/s in all the landing modes. 115.08°/s. The task-driven teaching method can effectively improve the students’ tennis learning and technical level and enhance the quality of tennis technical teaching in colleges and universities.

Analysis on epidemiological characteristics of central obesity/pre-central obesity and influencing factors in Jilin Province

Objective: To understand the epidemiological characteristics of central obesity and pre-central obesity and influencing factors in residents in Jilin Province, and provide reference for the prevention and control of central obesity and pre-central obesity. Methods: Based on the results of early screening and comprehensive intervention program in high-risk groups of cardiovascular disease in Jilin dyring 2017-2018, a total of 11 903 participants aged 35-75 years in 6 project areas in Jilin were included as the survey subjects for physical examination, laboratory test and questionnaire survey. The prevalence of central obesity and pre-central obesity in populations with different characteristic and health status were analyzed by χ2 test, trend χ2 test, F-test. Multivariate logistic regression model was used for influencing factor analysis. Results: The central obesity rate was 33.35% (3 970/11 903), the standardized rate was 31.73%, the pre-central obesity rate was 28.79% (3 427/11 903), the standardized rate was 28.86%. Multifactor analysis results showed that being rural resident (OR=1.99, 95%CI: 1.78-2.23), being woman (OR=1.76, 95%CI: 1.57-1.97), 65-75 years old (OR=1.21, 95%CI: 1.03-1.45), senior high school and technical secondary school education level (OR=1.38, 95%CI: 1.17-1.63), annual family income >100 000 yuan (OR=1.65, 95%CI: 1.20-2.26), overweight (OR=9.27, 95%CI: 8.26-10.41), obesity (OR=82.82, 95%CI: 62.63-109.52), normal high blood pressure (OR=1.49, 95%CI: 1.27-1.74), hypertension (OR=1.70, 95%CI: 1.42-2.04), diabetes (OR=2.30, 95%CI: 1.94-2.73), dyslipidemia (OR=1.33, 95%CI: 1.18-1.50) were positively related to the risk for central obesity and pre central obesity. Conclusions: The prevalence rates of central obesity and pre central obesity in residents in Jilin were at high levels, being rural resident, being woman, older age, senior high school and technical secondary school education level, high income, overweight and obesity, normal high blood pressure and hypertension, diabetes, dyslipidemia were risk factors for central obesity and pre-central obesity in Jilin.

Deep Learning-Based Oyster Packaging System

With the deepening understanding of the nutritional value of oysters by consumers, oysters as high-quality seafood are gradually entering the market. Raw edible oyster production lines mainly rely on manual sorting and packaging, which hinders the improvement of oyster packaging efficiency and quality, and it is easy to cause secondary oyster pollution and cross-contamination, which results in the waste of oysters. To enhance the production efficiency, technical level, and hygiene safety of the raw aquatic products production line, this study proposes and constructs a deep learning-based oyster packaging system. The system achieves intelligence and automation of the oyster packaging production line by integrating the deep learning algorithm, machine vision technology, and mechanical arm control technology. The oyster visual perception model is established by deep learning object detection techniques to realize fast and real-time detection of oysters. Using a simple online real-time tracking (SORT) algorithm, the grasping position of the oyster can be predicted, which enables dynamic grasping. Utilizing mechanical arm control technology, an automatic oyster packaging production line was designed and constructed to realize the automated grasping and packaging of raw edible oysters, which improves the efficiency and quality of oyster packaging. System tests showed that the absolute error in oyster pose estimation was less than 7 mm, which allowed the mechanical claw to consistently grasp and transport oysters. The static grasping and packing of a single oyster took about 7.8 s, and the success rate of grasping was 94.44%. The success rate of grasping under different transportation speeds was above 68%.

Research on the Risk-Inducing Factors of Prefabricated Building Design Change Based on Improved DEMATEL-ISM

Under the background of China’s progress towards the goals of “carbon peak” and “carbon neutrality”, prefabricated buildings have developed rapidly due to their advantages of energy conservation and environmental protection, low construction cost, and high efficiency. While much attention has been paid to prefabricated buildings, less has been studied about the risk factors that cause engineering changes. In this paper, the factors that induce the risk of design change were identified from six aspects: personnel management, resource management, organization management, information and communication, collaboration mechanism, and technical level. The improved DEMATEL-ISM model was established in a fuzzy environment, the relationship between the influencing factors was quantitatively analyzed, the hierarchy between the factors was intuitively reflected, and the driving force and dependence of each factor were clearly displayed; it was concluded that poor organizational ability, errors and omissions in design, time lag between design and construction, immature component splitting and deepening design technology, and low standardization of production components in component factories are the key factors that induce the risk of design change. Finally, management implications for the relationship between various factors were proposed. This article provides references and help for the construction industry to effectively manage the risks caused by design changes.

Совершенствование конструкции насадочных аппаратов за счет равномерного распределения газового потока

The modern technical level of solving the problem of efficient operation of adsorbers due to the uniform distri-bution of gas inside the apparatus is considered in detail and ways to improve the adsorbers are proposed. The disadvantages of modern designs of adsorbers and the areas of their use are noted. A brief critical analysis of the designs of devices for uniform loading of adsorbent is given. Based on the analysis and experimental studies, the design of the apparatus has been developed, which ensures a uniform distribution of gas flows inside the apparatus. The objective of the experimental studies was to evaluate the characteristics of the developed design of the apparatus for gas adsorption from gas mixtures. Simplicity of dense uniform loading of adsorbent, increase of process efficiency, low hydraulic resistance of the device are provided. To solve these tasks, an experimental setup has been developed to study the efficiency of the adsorption process using the example of adsorption silica gel of water vapor from a mixture with air. It has been experimentally confirmed that the device has competitive advantages. The design provides a tightly packed adsorbent layer, without voids, which means that the uniformity of the load layer in terms of wear and moisture is ensured. In the design of the adsorber, the possibility of entrainment of adsorbent particles during reverse purging is excluded. The design allows you to flexibly change the performance. The total cross-sectional area of the adsorbent increases in proportion to the vertically number of adsorption baskets. An increase in the number of cycles of the adsorption process will entail an increase in the adsorption capacity of the adsorbent. The design of the device helps to reduce energy consumption, reduce capital costs and increase the productivity of the adsorption plant. The introduction of the adsorber into the technology will ensure reliable operation, energy efficiency and high quality of the process.