Competitive Products Research Articles

Synthesis of nano-calcium carbonate from waste cement and techno-economic and environmental evaluation

Mineral carbonation stands out not only as an effective method for reducing CO2 emissions but also as a strategic approach to upcycling industrial waste. This study introduces a novel procedure for generating high-purity nano-calcium carbonate (nCaCO3) from waste cement powder, deploying hydrochloric acid (HCl), and sodium hydroxide (NaOH), both obtained through the electrolysis of sodium chloride (NaCl). Our approach, aimed at both environmental preservation and techno-economic feasibility, encompasses optimizing calcium extraction conditions through rigorous analysis of variables such as HCl concentration, solid-to-liquid ratio, and reaction temperature, subsequently proposing a rate law for the extraction process. Furthermore, the method emphasizes the production of high-purity CaCO3 by meticulously removing metallic impurities from the extracted solution with 1.0 M NaOH, culminating in pure calcium hydroxide and the generation of nCaCO3 particles with superior purity (>99 %) and a uniform particle size (80–140 nm). An exhaustive environmental and economic assessment indicates that our process, while consuming varying energy levels based on operational potentials, anticipates a significant reduction in CO2 emissions by 46.1 %, alongside a competitive production cost (335 USD/ton of nCaCO3), thereby demonstrating substantial advantages over traditional methods in terms of sustainability, efficiency, and cost-effectiveness.

Problems of optimizing the production and export of environmentally friendly consumer products in Azerbaijan

State of the problem. In the article, it is justified that the provision of a green economy based on environmentalization, modernization, innovation and new technologies in the production and processing of agricultural products leads to a radical improvement of production, protection of natural capital and ecosystem services, and reduction of pollution and greenhouse gas emissions. It was noted that the regulation of agricultural production systems in the country requires the expansion of agricultural practices that increase productivity and production, contribute to the protection of ecosystems, adaptation to climate change, extreme weather events, droughts, and floods. Research object. It is the production, processing, consumption and export of agricultural products of Azerbaijan. The purpose of the study is to promote the production of ecologically clean and export-important consumer products in Azerbaijan and the stimulation of its export. Introducing the country to the world with branded products, attracting foreign investments to this field, increasing the population's interest in the agricultural field, and attracting innovative technology to the field are also considered important. It is the determination of the damage caused by the impact on the agricultural sector and nature due to the degradation of the growing environmental components. Minimizing losses at this stage and optimizing the development of the agro-industrial complex is one of the main factors. Methodology. Generalization, historical, statistical, systematic analysis and comparison methods were used in the preparation of the article. Scientific novelty of the research. Implementation of the production and processing of ecologically clean agro-industrial products that do not harm human health and the environment, regular monitoring of the ecological condition of the soil, and the provision of increasing the production and assortment of ecologically clean export-oriented food and light industrial products. Research results. In the article, it is explained that the development of the green economy in Azerbaijan is an integral part of the state policy, and it occupies an important place in the state administration, on the example of export-oriented food and light industrial products. It is noted that the sustainability of the development of the green economy acts as a criterion for the production of competitive products of the state, which contributes positively to the provision of people's vital needs.

Price, Quality, and Promotion Synergize to Boost E-commerce Purchases in Indonesia

This study investigates the impact of price, product quality, and promotion on consumer purchasing decisions on Shopee, focusing on students from Muhammadiyah University Sidoarjo. Using a quantitative approach and data collected through questionnaires, the research employs multiple linear regression analysis via SPSS. Results indicate that price, product quality, and promotion each have a significant positive effect on purchasing decisions. Collectively, these variables also influence consumer behavior on Shopee. The findings suggest that competitive pricing, high product quality, and effective promotions are crucial for enhancing consumer purchasing decisions on e-commerce platforms. Highlight: Competitive pricing and high product quality positively affect consumer decisions on Shopee. Effective promotions significantly influence purchasing behavior among university students. Combined impact of price, quality, and promotions enhances consumer engagement on e-commerce platforms. Keywoard: Price, Product Quality, Promotion, Purchasing Decisions, E-commerce

Физиологические свойства перспективного грибного штамма антагониста возбудителя сухой гнили подсолнечника Т-5 Trichoderma sp.

Dry rot is one of the most dangerous and wide spreading disease on sunflower in last years. Due to the growing demand for environmentally friendly production of agricultural products, the demand for competitive microbiological products is increasing. Since 2020, there are studied and developed environmentally friendly microbiological preparations of a multifunctional type of action against the dry rot pathogen on sunflower Rhizopus oryzae Went & Prins. Geerl. at the V.S. Pustovoit All-Russian Research Institute of Oil Crops. The physiological qualities of a promising antagonist strain of the dry rot pathogen T-5 Trichoderma sp. isolated as a result of stepwise screening were studied during stationary cultivation on liquid nutrient media in order to develop elements of a technological regimen for the production of a microbiological preparation in a preparative form wettable powder. Optimal conditions for surface cultivation of the fungus T-5 Trichoderma sp. on a liquid nutrient medium were determined as following: temperature +25 °C; acidic reaction of the medium (pH 3); glucose and starch as carbon source; source of nitrogen nutrition is corn extract. The media by Rudakova and No. 1 were identified as the best complicated liquid nutrient media.

Promising potato hybrids in Siberia

The results of studying potato hybrids in the nurseries of preliminary and competitive variety trials are presented. The research was conducted in 2018–2022 in the Krasnoyarsk Territory in grain and fallow crop rotation. The soil of the experimental plot is represented by leached chernozem, low- and medium-moist heavy loam of granulometric composition. Experiment design, yield recording and data processing were carried out in accordance with the generally accepted recommendations for work with the crop. Based on the Selyaninov hydrothermal coefficient, the weather conditions of the vegetation periods of the years of research can be characterized as slightly arid. The HTC was 1.1 in 2019 and 2021, in 2020, 2022 – 1,3. According to the results of the preliminary variety trials, lines A-114, A-326, A-529, A-635a exceeded or were at the level of the standard variety Krasnoyarsky Ranniy by the number of marketable tubers and yield. During 4 years of research in the nursery of competitive varietal trial, the studied breeding lines on average formed yields at the level or higher than the standard varieties. According to the elements of the yield structure in the competitive variety trial lines A-114, A-529 significantly exceeded the standard variety in marketability, as well as had a smaller number and weight of unmarketable tubers. Based on the results of the evaluation in 2019–2021 of the chemical composition of tubers for dietary and functional food, lines with low starch content (up to 14%) are proposed: A-114 (12.2%), А-672а (9.9), А-635а (12.7%). Based on the study in 2019–2022 of the line A-114 in competitive trials, preliminary and production multiplication, ecological assessment, application materials for admission to use and protection of the new potato variety Akrux were submitted to the State Variety Commission.

A Contemporary Marxist Critique of Neoliberal Capitalism: Beyond Revolution and Neo-Keynesianism

ABSTRACT The aim of the study is to assess current trends, regularities and contradictions in the Marxist critique of neoliberal capitalism. The methodology of the study is built on a comparative analysis of the latest scientific works, an approach based on quantitative analysis of the global neoliberal development in the period 1980–2020. For the analysis this authors used the data of the World Bank and the International Monetary Fund(IMF) on the group of ‘Big Seven’ countries – Canada, France, Germany, Italy, Japan, United Kingdom, the United States and China. A comparative analysis shows a significant lag in the countries with a neoliberal model of global economic growth. It can be argued that the neoliberal model of economic development proved effective at the initial stage of its practical application in overcoming the inflationary shock caused by the oil crisis of the 1970s, as well as in the conditions of highly competitive industrial production. At the same time, in the context of the post-industrial formation of the digital economy, neoliberal ideology no longer meets the challenges of the times and is no longer able to support sustainable economic growth as well as prosperity.

Impact of Trade Liberalisation and MSME Classification on Productivity of Indian Manufacturing Firms

This article examines the effects of tariff and non-tariff reductions on firm-level productivity of large as well as Micro, Small and Medium Enterprises (MSMEs) in India’s manufacturing sector for the 1999–2009 period. We calculate input and final goods tariffs, effective rates of protection and non-tariff barriers (NTBs) for broad product groups using information from India’s Exim Policy of 1997–2003 and 2004–2009 to examine this impact. We use a balanced as well as unbalanced firm-level panel data set, while accounting for firm, industry, state and time-specific factors. By using fixed effect models and Heckman’s two-step estimation procedure, we find that trade liberalisation is associated with improved firm-level productivity for large firms but not in the case of MSMEs. We posit that this might be due to the relative disadvantages that Indian MSMEs face which prevent them from benefiting from trade liberalisation. We also find that productivity gains arising from the sourcing of imported inputs have been greater than those arising from increased product competition and that NTB liberalisation has had a greater impact compared to tariff liberalisation on firm-level productivity. Changes in MSME legislation and the classification of firms are also found to have a bearing on firm performance. Our study contributes to the literature by confirming the need to focus specifically on constraints faced by MSMEs if they are to benefit from trade liberalisation. It highlights the importance of liberalising trade in intermediates as well as the role of MSME classification in enabling productivity gains. JEL Codes: L6, D24, L1, F13

Explainable machine learning models for defects detection in industrial processes

Machine learning algorithms in non-linear pattern recognition for defect detection in manufacturing processes are increasingly prevalent in the context of Industry 4.0. This scenario enables factories to develop methodologies for monitoring and controlling the quality of their products, obtaining better operational efficiency indicators, and offering increasingly competitive products in the market. Explainable Artificial Intelligence can facilitate understanding how the models make decisions and assist in tracking anomaly points. This paper proposes an explainability framework for machine learning models in defect detection. This work applied the multinational industry’s approach to the tire manufacturing process. Models such as random forest, gradient boosting decision tree, light gradient boosting machine, logistic regression, support vector machine, and multi-layer perceptron were considered to evaluate the performance of tires in compliance with production standards. Statistical methodologies had to be adopted to deal with the small number of samples training the machine learning models. The random forest and logistic regression models achieved the best performances with an accuracy of 92% and 96%, respectively. The Local Interpretable Model-Agnostic Explanations and SHapley Additive exPlanations methods were used to identify the relevant process variables. The approach presents the global and local interpretations of the results, allowing for a deeper understanding of how process variables discriminate the fault. The proposed framework determines reference values for each selected process variable for tire manufacturing in compliance with quality standards. This approach provides a relevant tool for quality control management in tire manufacturing industries.

Assessment of prospects for achieving the national goal of halving the poverty rate compared to the 2017

The paper presents research on the problem of reducing poverty in Russian Federation. The purpose of the research is to assess the prospects for achieving the national goal of twofold poverty level reducing in Russia by 2030 compared to the 2017. However, in terms of dynamics to the approaches to the poverty, it will be possible to achieve the twofold poverty reduction by 2030 compared to the 2017. It can be implemented in accordance with Presidential Decree No. 474 on 21 July 2020. Moreover, it is not the problem solving; the measurement scale transformation is not the proper tool that can eliminate (or at least reduce) poverty in society. The practical significance of the research is the introduction of a differentiated progressive taxation scale and development of favourable conditions for the intensive development of high-tech and competitive production as the most effective tools for poverty reduction. It will cause an increase in the population’s income, strengthening of the national distributive and redistributive functions. Additionally, it allows ones’ to reduce the income gap between the richest and poorest segments of the population (reduction of the Gini index).

Comparative evaluation of the nutritional value and safety of yellow and red onions

Onion (Allium сера L.) has a rich biochemical composition, which has some variability depending on the type of onion and growing conditions. Still, at the same time, it is a 'valuable food product for humans. The purpose of the research was a comparative assessment of the nutritional 'value and safety of domestically produced fresh yellow and red onions. The biochemical characteristics, mineral composition, and safety indicators of vegetable products were studied. Red onions contain more protein (63%) and higher antioxidant activity (21%), while yellow onions contain more vitamin C and flavonoids by 10 and 76%, respectively. In yellow bulbs of essential mineral elements, there is more Fe (6.3 times), Mg (47.6%), К (35.3%), Ca (32.9%), Mn (12.8 %), Zn (by 9.5%), of the probably necessary elements - Sr and Cr by 2.2 and 1.9 times, respectively. Red bulbs are distinguished by an increased amount of Си by 28.1%, Ni and Si by 2.4 times, and by 13.5%, respectively. Potentially hazardous elements (As, Cd, Hg) were not identified in all onion samples. As for safety indicators, red onions contain slightly more nitrates (35.3%), and yellow onions contain the pesticide HCH (2.2 times), which does not contradict the requirements of TR CU 021/2011. Considering the quantity and levels of nutritional nutrients and the price characteristics of the onions studied, the most competitive products is yellow onions.

ОСОБЕННОСТИ ЭКОНОМИКИ И УПРАВЛЕНИЕМ ПРОИЗВОДСТВА ЗЕРНА В ПЕРМСКОМ КРАЕ

The scientific article, a theoretical review of domestic literature on issues and peculiarities of managing grain production, as well as enhancing the efficiency of the grain product sub-complex within the framework of agro-industrial production, has been conducted. An analysis of grain production was carried out. Issues related to increasing yield and gross harvest, which depend on many factors of both controllable and uncontrollable genesis, were examined. The development of the livestock industry and enterprises of the processing industry, the introduction of abandoned lands into circulation, based on the program for the development of the agricultural complex (APK) and the grain sector of the Perm Krai, as well as their mutual dependence, were identified. Management of the structure of sown areas, costs, based on developed agrobiotechnologies adapted to competitive grain crop production, will allow increasing the industry's efficiency. The targeted use of wheat grain in terms of industrial sectors was considered, and indicators of yield increase and costs affecting winter wheat were presented. A model assessment of the economic efficiency of winter wheat production was made based on the proposed influencing factors.

“B2B” MODULE OF THE REGIONAL DIGITAL PLATFORM AS A TOOL FOR COOPERATION OF SUPPLY CHAIN STAKEHOLDERS AND DEVELOPMENT OF IMPORT SUBSTITUTION POLICY

The main stages in the development of the “B2B” module of a regional digital platform for collaboration of supply chain participants and other stakeholders have been identified in order to manage regional supply chains and develop import substitution policies. Algorithms have been developed for making management decisions on the feasibility of supporting import substitution projects within the “B2B” module of the regional digital platform, which will accelerate the transition of business entities to the production of competitive innovative products in the domestic market, which will help ensure economic security and increase the competitiveness of the territory. The study was carried out with financial support from the Belarusian Republican Foundation for Basic Research (BRFFR Nauka M G23M-029 grant).

Marine Renewable-Driven Green Hydrogen Production toward a Sustainable Solution and a Low-Carbon Future in Morocco

Oceanic energy sources, notably offshore wind and wave power, present a significant opportunity to generate green hydrogen through water electrolysis. This approach allows for offshore hydrogen production, which can be efficiently transported through existing pipelines and stored in various forms, offering a versatile solution to tackle the intermittency of renewable energy sources and potentially revolutionize the entire electrical grid infrastructure. This research focusses on assessing the technical and economic feasibility of this method in six strategic coastal regions in Morocco: Laayoune, Agadir, Essaouira, Eljadida, Casablanca and Larache. Our proposed system integrates offshore wind turbines, oscillating water column wave energy converters, and PEM electrolyzers, to meet energy demands while aligning with global sustainability objectives. Significant electricity production estimates are observed across these regions, ranging from 14 MW to 20 MW. Additionally, encouraging annual estimates of hydrogen production, varying between 20 and 40 tonnes for specific locations, showcase the potential of this approach. The system’s performance demonstrates promising efficiency rates, ranging from 13% to 18%, while maintaining competitive production costs. These findings underscore the ability of oceanic energy-driven green hydrogen to diversify Morocco’s energy portfolio, bolster water resilience, and foster sustainable development. Ultimately, this research lays the groundwork for comprehensive energy policies and substantial infrastructure investments, positioning Morocco on a trajectory towards a decarbonized future powered by innovative and clean technologies.

Antiparasitic Activity of Enterocin M and Durancin-like from Beneficial Enterococci in Mice Experimentally Infected with Trichinella spiralis.

Beneficial/probiotic strains protect the host from pathogens by competitive displacement and production of antibacterial substances, i.e., bacteriocins. The antiparasitic potential of bacteriocins/enterocins and their producing strains in experimental murine trichinellosis were tested as a new therapeutic strategy. Enterocin M and Durancin-like and their producers Enterococcus faecium CCM8558 and Enterococcus durans ED26E/7 were administered daily to mice that were challenged with Trichinella spiralis. Our study confirmed the antiparasitic effect of enterocins/enterococci, which reduced the number of adults in the intestine (Enterocin M-43.8%, E. faecium CCM8558-54.5%, Durancin-like-16.4%, E. durans ED26E/7-35.7%), suppressed the Trichinella reproductive capacity ex vivo (Enterocin M-61%, E. faecium CCM8558-74%, Durancin-like-38%, E. durans ED26E/7-66%), and reduced the number of muscle larvae (Enterocin M-39.6%, E. faecium CCM8558-55.7%, Durancin-like-15%, E. durans ED26E/7-36.3%). The direct effect of enterocins on Trichinella fecundity was documented by an in vitro test in which Durancin-like showed a comparable reducing effect to Enterocin M (40-60%) in contrast to the ex vivo test. The reducing activity of T.spiralis infection induced by Enterocin M was comparable to its strain E. faecium CCM8558; Durancin-like showed lower antiparasitic activity than its producer E. durans ED26E/7.

Optimization-based design support for engineer-to-order product quotation

AbstractQuotation of engineer-to-order products provides substantial challenges in effectively managing engineering resources. This paper describes an approach that rationalizes this process by integrating multi-disciplinary design analysis and optimization with a new open-source library for managing engineering knowledge before and after optimization. The approach is applied and evaluated on mechanical rock excavation machines. Adapting the approach and considering the user feedback gathered can lead to an enhanced design space overview during quotation and thus more competitive product offerings.

Online sales and stock price synchronicity: Evidence from China

This paper investigates the effect of online sales on stock price synchronicity using the unique data of Chinese listed companies' online sales from e-commerce platforms. We document three notable findings. First, online sales are negatively associated with stock price synchronicity, suggesting that online sales facilitate the incorporation of firm-specific information into stock prices. Second, online sales reduce stock price synchronicity through analyst coverage and media coverage. Third, the synchronicity-reducing effect of online sales is stronger in firms with lower levels of urban Internet development, more competitive product markets, and worse earnings quality. Overall, our analyses suggest that online sales are an important determinant of stock price synchronicity.

Studying of Community Book Resources Sharing Service Design Based on Social Behavior Organization

This article studies the design of community book resource sharing services, analyzes the nature of social behavior organizations and how to effectively intervene through design methods, analyzes the advantages and disadvantages of existing competitive products, observes the needs of community residents for book resource sharing, and conducts service design research from the perspective of social behavior organizations. Through the "Book · Meeting" - Community Resident Book Resource Sharing Service System, it has been put into practice. We carry on innovation design from reading in idle resources sharing, planning and implementation, online interactive sharing, offline communication experience, build “read + share” community books resources sharing service system based on social behavior, carry on the practice and verification, conclude that studying service mode on social behavior organization is feasible, realize interdisciplinary research and broaden the research field of community development.

Determination of the cellulose- and lipid-containing components influence on the extrudate technological indicators

The effect of cellulose- and lipid-containing components on the technological parameters of the extruded mixture based on protein- and starch-containing raw materials on the technological parameters of the extrudate was studied. The use of components that modify such technological indicators of the extruded mixture as water resistance and swelling is substantiated. It is proposed to use sunflower husks and sunflower phosphatide concentrate as modifying additives to the mixture for extrusion. A rational ratio of the specified components in the extrudate was established to obtain indicators of water resistance in the range of 220...300 min and swelling in the range of 100...120 %. This is an important aspect of expanding the range of extruded products from the waste of oil and fat industries and obtaining high-quality competitive products. The object of the study is the dependence of water resistance and swelling of the extruded mixture on the content of modifying additives. Their rational ratio in the extrudate is: sunflower husk – 6.0 %; sunflower phosphatide concentrate – 5.0 %. The manufactured extrudate sample corresponds to commercial fish feed in terms of chemical composition and technological parameters, and also has a 4 times lower cost. A feature of the obtained results is the possibility of regulating the water resistance, swelling and porosity of the extrudate based on protein- and starch-containing raw materials, depending on the ratio of cellulose- and lipid-containing modifying additives. This allows to change the technological parameters of the finished product depending on the chemical composition of the mixture of raw components according to the requirements of the consumer. The results of the conducted research prove that cellulose- and lipid-containing secondary products of production can be successfully transformed into new competitive products

Beyond revolutions: Mao-era China’s market entry strategies in Latin America

How did the People’s Republic of China develop commercial relations with the Global South during its Maoist years? This paper aims to explore the question through China’s market entry strategies in Latin America. Latin America posed significant challenges for Mao-era China in establishing robust relations. Under intense US pressure and the dominance of conservative politics, most Latin American nations maintained minimal commercial and political ties with China until 1971 when Beijing replaced Taipei in the UN. Notable exceptions were Cuba, following its armed revolution in 1959, and Chile, after its peaceful revolution in 1970, which formally recognised the PRC, leading to substantial trade agreements. This paper examines Chinese trade promotion in the region during the 1960s and early 1970s, contending that commercial ties, particularly Chinese exports to Latin America, were not simply the inevitable outcome of these revolutions and the establishment of diplomatic relations. Policy makers in Beijing and Chinese commercial representatives in Latin America strategically navigated market entry by leveraging cultural promotions, focusing on competitive Chinese products, notably processed foods, and tapping into the Chinese Overseas community as intermediaries. These strategies not only cultivated a favourable image of China in the region but also acquainted Latin American consumers with Chinese brands and products. Moreover, the paper analyzes how Chinese trade promoters recognised and addressed the nuances and disparities among Latin American countries, comprehended the significance of Cuba and Chile within the region, and contextualised Latin America’s position in the global market.

IoT Solutions for Smart Parking- Sigfox Technology

Sigfox technology has emerged as a competitive product in the communication service provider market for approximately a decade. Widely implemented for smart parking solutions across various European countries, it has now gained traction in Germany as well. The technology's successful track record and reputation in the market demonstrate its effectiveness and reliability in addressing the communication needs of IoT applications, particularly in the context of vehicle parking systems. This is noted in terms of a city like Berlin-Germany, for on which the study is conducted. The major challenge being on how to relate the parking techniques in a more user friendly, cost effective and less energy consumpmti0n mode where the questions had at the beginning of the paper, relatively at the end the answers are sought to it via Sigfox and its comparison with other related technologies like LoRA WAN and weightless. But more so future areas of research study is also pointed out on areas which are not clearly identified in this particular research area. This paper entails the pros, cons adaptive, emerging and existing technology study in terms of cloud, big data, Data analytics are all discussed in tandem to Sigfox.