Economic Aspects Research Articles

Can molecular oscillation technology be used as an alternative to acid injection to prevent the clogging of emitters in drip irrigation systems?

AbstractIn this study, molecular oscillation technology (Merus ring), developed to prevent calcification, biofilm formation and corrosion in piping in industrial water treatment systems, was compared as an alternative to acid injection to prevent the clogging of emitters by chemicals, and fresh and saline water were compared on the basis of system performance parameters (coefficient of variation, distribution uniformity, Christiansen uniformity, emission uniformity) and economic aspects. The results revealed that both acid injection and the Merus ring in saline and fresh water resulted in significantly higher average emitter flow rates than the control treatment. Both the Merus ring and the acid injection achieved higher performance parameters with fresh water than with saline water. Acid injection was found to be more effective in preventing clogging of the emitters than the Merus ring when saline water was used. Compared with fresh water, saline water increases emitter clogging. The economic analysis revealed that the Merus ring was more economical ($204.3 ha−1) than acid injection with both fresh water ($318.2 ha−1) and saline water ($578.6 ha−1). Therefore, the Merus ring could be a reliable and environmentally friendly alternative to acid injection to prevent the clogging of emitters in drip systems when saline water is used.

Impact Factors for Sustainable Consumption in Todays World

One can define sustainable consumption as the act of procuring services or products that satisfy the requirements of individuals while simultaneously reducing the impact on the environment, which has become increasingly important in addressing global challenges like climate change and resource depletion. The present study explores the factors influencing sustainable consumption, focusing on social, economic, psychological, policy, and business strategy aspects. By reviewing research surveys, results of regression analysis, and case studies, this paper reveals that social norms, income levels, environmental awareness, government policies, and green marketing strategies significantly impact consumers sustainable consumption behaviors. The findings of the study emphasize that sustainable consumption can only be effectively promoted if multifaceted influences are considered in an integrated manner and several sustainable strategies involving all stakeholders are put in place. Ultimately, this investigation renders useful awareness for the benefit of consumers, companies, and policymakers who are interested in enhancing their practices regarding sustainability.

The Development of a Prediction Model Related to Food Loss and Waste in Consumer Segments of Agrifood Chain Using Machine Learning Methods

Food loss and waste (FLW) is a primary focus topic related to all human activity. This phenomenon has a great deal of importance due to its effect on the economic and social aspects of human systems. The most integrated approach to food waste analysis is based on the study of FLW alongside the agrifood chain, which has also been performed in previous studies by the authors. This paper presents a modality of determination of food loss and waste effects with an emphasis on consumer segments in agrifood chains in the form of a predictive model based on statistical data collected based on specific methods in Romania. The determination is made comparatively, using two predictive machine learning-based methods and separate instruments (software), in order to establish the best model that fits the collected data structure. In this matter, a Decision Tree Approach (DTA) and a Neural Network Approach (NNA) will be developed, and common methodologies of the approaches will be applied. The results will determine predictive outcomes for a specific food waste (FW) agent (e.g., consumer) based on pattern recognition of the collected data. The results showed relatively high-accuracy predictions, especially for the NN approach, with lower performances using the DTA. The effects of the application of this predictive model will be expected to improve the food loss prevention measures within economic contexts when applied to real-life scenarios.

FORMATION OF A SYSTEM FOR ASSESSING THE EFFECTIVENESS OF INNOVATIVE DEVELOPMENT OF LOGISTICS ACTIVITIES OF MOTOR TRANSPORT ENTERPRISES ENGAGED IN FREIGHT TRANSPORTATION IN TERMS OF SUSTAINABLE DEVELOPMENT

The article discusses the importance of implementing innovations at road transport enterprises in the context of achieving the region's sustainable development goals. The author emphasizes that road transport enterprises are significant sources of harmful emissions and environmental pollution, so using innovative technologies, such as electric vehicles, hybrid cars, and alternative fuels, is an important tool for reducing the negative environmental impact. In particular, these technologies help to reduce greenhouse gas emissions and other harmful substances, which is in line with Sustainable Development Goals 7 (access to modern energy), 13 (combating climate change), and 15 (protecting terrestrial ecosystems). In addition, innovations in transport technologies, such as automated driving systems, help to improve road safety and reduce the number of road accidents, which is in line with Goal 3 (good health and well-being). The creation of new jobs and infrastructure development through the construction of electric charging stations and the introduction of intelligent transport systems (smart cities) are also linked to Sustainable Development Goals 9 (sustainable infrastructure) and 11 (sustainable urban development). The author analyses the performance indicators of innovations at motor transport enterprises, taking into account economic, social, and environmental aspects. Particular emphasis is placed on the adaptation of these indicators to the current realities of Ukraine. Using game theory, the article develops a model for the selection of optimal strategies for motor transport enterprises and the region. This model allows us to find the Nash equilibrium - a situation where both parties achieve the optimal result. Enterprises that implement innovations not only improve their own performance indicators, but also contribute to the achievement of sustainable development goals of the region. The article also presents two sets of strategies: for the development of logistics activities of a motor transport enterprise and the sustainable development of the region. Both approaches aim to comprehensively improve the region's environmental, economic, and social situation. The conclusions emphasize the importance of implementing innovation development assessment systems as a tool for making strategic decisions and improving the efficiency of logistics operations.

Performance evaluation of waste phosphogypsum-based solidified sludge: From laboratory test to field application

Massive dredged sludge is being landfilled without effective use due to its high-water content and poor engineering properties, which not only leads to soil resources waste, but also occupies a large amounts of land sources. In this study, ternary stabilizer, including waste phosphogypsum (PG), ground granulated blast-furnace slag (GGBS), and lime (LM) with a mixing proportion of PG: GGBS: LM = 35:60:5, was adopted to improve the mechanical and environmental behaviors of sludge for subgrade filling purpose. The initial water content of sludge was controlled using two different dehydration methods for comparison. A series of laboratory tests, including unconfined compressive strength (UCS), organic matter content, and pH value were tested to understand its physical-mechanical properties. Thereafter, field application model equipped with a mini weather monitoring station was constructed to monitor the influence of solidified matrix on the surrounding water and soil environment. Time -dependent parameters such as plant growth, temperature, humidity, total nitrogen, phosphorus/potassium content, electrical conductivity, and pH value were monitored. Results indicate that the incorporation of PG-GGBS-LM ternary stabilizer significantly improves the mechanical and environmental properties of dredged sludge. The optimal dosage of the ternary stabilizer is 36%, which can result in a UCS value of the 2.0 MPa (slightly higher than ordinary Portland cement) after 28 days of curing. Field application reveals that plants could grow normally in solidified sludge. The environmental related parameters (i.e., total nitrogen, phosphorus/potassium content, electrical conductivity, and pH value) were similar with those in conventional planting soil, suggesting the advantage of the proposed PG-GGBS-LM ternary stabilizer in mechanical, economic and environmental aspects.

Impacts on Health, Environment and Quality of Life in the Post-Covid-19 Pandemic Period

Objective: To investigate how the pandemic and the post-COVID-19 scenario may impact current and future plans in health (medical area), the environment, and the population's quality of life. Theoretical Framework: In 2019, the world began to live as a hostage to an infectious disease caused by the SARS-CoV-2 coronavirus. As uncertainty reigns, the severity of the situation has shown that it could have social, health, educational, economic, and environmental aspects. Method: The methodology adopted for this research comprises a bibliographic review based on books, cataloged scientific articles being published on digital platforms including Scientific Library Online (SciELO), Pubmed, Periódico Capes, Cochrane, and Google Scholar, using the descriptors: COVID-19; quality of life; environment; health; and their respective synonyms, in Portuguese and English, published between 2015 and 2024. The exclusion criteria used in this study were duplicate articles in more than one database, with similar titles and that did not cover the topic, as well as articles published before 2015 in Portuguese and English. The main aspects analyzed for inclusion were the year of publication, type of study, language, objectives and main findings, according to the relevance of the original and current topic. Therefore, considering the inclusion and exclusion criteria, we made a cut of works published in the last 9 years and in the end 31 works were selected for the construction of this study. Results and Discussion: The results obtained revealed that all social spheres were, and may still be, affected unequally by the pandemic, since it is a situation of unknown nature, which is intensified every day by globalization and social inequalities. Direct impacts on the economy and jobs, as well as indirect effects of learning losses among children who are out of school. In terms of health and the impact on quality of life, we found changes in mental health, with an increase in the diagnosis of depression among adults. Research Implications: The practical and theoretical implications of this research are discussed, providing insights into how the results can be applied or influence practices in the fields of health, environment and education. These implications can cover areas of health promotion, economics and public and private management. Originality/Value: This study contributes to the literature by addressing a current topic with extreme social relevance that prioritizes deepening knowledge in the area that has changed humanity the most in current times: the COVID-19 Pandemic. Furthermore, it analyzes the real impacts of this historical and unique moment in the global context, with a greater focus on health, the environment and the quality of life of the human population.

Techno economic analysis of electrolytic hydrogen production by alkaline and PEM electrolysers using MCDM methods

Hydrogen, a crucial clean and renewable energy source, addresses pressing challenges of energy security and environmental pollution. Water electrolysis for hydrogen production is a promising approach to satisfy the growing demand for sustainable energy. This study uniquely performs a comprehensive techno-economic analysis of hydrogen production using both Alkaline and Proton Exchange Membrane (PEM) electrolyzers, a first in the field to evaluate their performance comprehensively with advanced Multi-Criteria Decision-Making (MCDM) techniques. Leveraging TOPSIS, WASPAS interval methods, and the Best Worst Method (BWM) with fuzzy logic, this research introduces a novel evaluation framework that incorporates a wide-ranging set of factors, including environmental, technical, technological, economic, and social aspects, divided into 30 sub-criteria. These insights offer a comprehensive understanding of each electrolyser's strengths and weaknesses, helping stakeholders make informed decisions about cost reduction in hydrogen production technologies. This has not been done before. Although cost results favour Alkaline electrolysers, PEM electrolysers are attractive for specific applications where their benefits justify the higher initial cost, choosing between Alkaline and PEM electrolysers dependent on a given hydrogen production project's requirements.

Scientific knowledge in the 21st century on social and economic factors that influence mortality due to tuberculosis: A bibliometric review

This research presents a bibliometric review of scientific production on the social and economic factors that influence mortality from tuberculosis between the years 2000 and 2024. The analysis covered 1742 documents from 848 sources, revealing an annual growth of 6% in scientific production with a notable increase starting in 2010, reaching a peak in 2021. This increase reflects growing concern about socioeconomic inequalities affecting tuberculosis mortality, exacerbated in part by the COVID-19 pandemic. The main authors identified in the study include Naghavi, Basu and Hay, whose works have had a significant impact on the field. The most prominent journals in the dissemination of this research are Plos One, International Journal of Tuberculosis and Lung Disease and The Lancet. The countries with the greatest scientific production include the United States, the United Kingdom, India and South Africa, highlighting a strong international contribution and a global approach to the problem. The semantic development of the research shows a concentration on terms such as “mortality rate”, “risk factors” and “public health”, with a thematic map highlighting driving themes such as “socioeconomic factors” and “developing countries”. The theoretical evolution reflects a growing interest in economic and social aspects to gender contexts and associated diseases. This study provides a comprehensive view of current scientific knowledge, identifying key trends and emerging areas for future research.

Multifunctionality, social benefits, and engagement: insights for forest restoration success from a study case in Brazil

Social, economic, and ecological aspects must be considered for ecological restoration projects to be successful. Multifunctionality, achieved when restored ecosystems have multiple uses, is the desired goal for these projects. Understanding people's perceptions of forest restoration is essential to advance the debate on stakeholder acceptance and engagement. Based on a 30‐year case study of forest restoration on a university campus in Brazil, we assessed (1) how project objectives relate to contemporary multifunctionality and social attributes; (2) how the current state of the forest meets social goals; and (3) how stakeholders perceive the importance of the forest and the project itself. We used documents, interviews, and questionnaires, applying content analysis and narrative interpretation with the “social benefits wheel” and the “five‐star social system” to assess how the initial project objectives corresponded to contemporary social development goals and its progress toward social goals. The results revealed that socioecological goals were incorporated from the beginning of the project, ensuring a multifunctional approach. Respondents highlighted ecological, social, and cultural functions, with 84% expressing positive feelings toward the forest. Ecosystem services, especially regulatory and cultural benefits, were recognized as the most valuable. Although academic use was significant, nonmaterial values, such as cultural and emotional connections, were more prominent. The study concludes that a well‐planned restoration project involving the local community generates lasting support for ecological restoration. This information strongly supports Brazil's voluntary reforestation targets proposed in the Paris Agreement.

An innovative quick-decision strategy for evaluating the applicability of extractive distillation process with a preconcentration column in separating high-concentration organic waste liquid

In the face of the high energy consumption challenge in separating high-concentration organic waste liquid through extractive distillation (ED), the concept of preconcentration provides a new strategic direction. Therefore, it has become crucial to determine the suitability of the ED process with a preconcentration column for processing such complex mixture. Taking this into consideration, the study proposes an innovative quick-decision method that utilizes thermodynamic analysis of ternary phase diagram to determine the ratio of theoretical product flowrate at the bottom of the preconcentration column to the feed flowrate, which serves as the basis for deciding whether to choose the ED process with a preconcentration column for handling such separation tasks. Three azeotropic systems with different thermodynamic characteristics are chosen as case studies: cyclohexane/ethyl acetate/ethanol (Case 1), ethyl acetate/ethanol/water (Case 2), and n-hexane/ethyl acetate/acetonitrile (Case 3). The task of separating the above three systems is accomplished through the application of both three-column extractive distillation configuration (TCED), and four-column extractive distillation configuration (FCED). The objective functions for multi-objective optimization of all separation configurations include the minimum total annual cost (TAC), the minimum entropy generation and the minimum CO2 emissions. The research findings indicate that when the ratio of theoretical product flowrate at the bottom of the preconcentration column to the feed flowrate is not less than 0.56, or when there is a significant concentration difference among the components in the feed stream, the FCED configuration exhibits clear advantages over the TCED configuration in terms of economic, environmental, and thermodynamic aspects.

A systematic literature review of life cycle sustainability assessment of mass timber in the construction industry toward circular economy

AbstractLife cycle analysis has been used to evaluate the environmental impacts and economic costs of a range of engineered timber structural materials as well as other materials such as steel and concrete over the last two decades. This study presents a bibliometric analysis and systematic critical review by investigating the life cycle sustainability assessment (LCSA) of engineered timber products. LCSA is comprised of three main pillars namely, environment, cost, and social impact. The study compares alternative engineering wood products used in building structures such as columns, beams and wall surfaces. The geographical distribution, main sources of research, co-occurrence of keywords were analyzed for 93 peer-reviewed articles and conferences. The United States was the most productive country, contributing almost 23 documents. Australia was next with 12 publications. Most studies compared the LCA and LCC of alternative Mass timber products and concrete or steel. Most studies evaluated cross laminated timber (62%), followed by glued laminated timber (17%), and laminated veneer lumber (9%). A comparison of the economic and environmental aspects indicated that the social aspect are less considered. The review showed that the global warming potential of manufactring1 M3 of cross laminated timber is about 155.6–158.6 kg CO2eq. The majority of the publications reviewed focused on LCA whilst others focussed on the LCC of Mass timber. No research on social life cycle assessment has been conducted as yet. A framework is suggested for future research to identify the best alternative for engineering wood.

Transformative Education at Nurul Haramain Nahdlatul Wathan Narmada Pesantren West Lombok and Thohir Yasin Lendang Nangka Pesantren East Lombok

Islamic boarding schools, as educational institutions oriented to the needs of the community, need to adapt to social changes due to the development of the times and technology. This research aims to explore scientific development, institutional transformation, learning innovation, and transformation results in Nurul Haramaian NW Narmada Islamic Boarding School and Thohir Yasin Lendang Nangka Islamic Boarding School. A qualitative approach with field research methods was used to compare the two pesantren that seek to make social change through transformative education. The results of the study show that the development of science in the two pesantren includes a comprehensive methodology that is internalized in religious and general subjects, as well as extracurricular activities in Nurul Haramaian. The institutional transformation includes establishing formal and non-formal institutions and changes in education and curriculum management. Learning innovation involves the use of information technology and the development of learning methods that are by the character of the pesantren. From the results of the transformation, graduates of the two Islamic boarding schools showed comprehensive knowledge, skills, and good morals and had a positive impact on society, especially in economic and social aspects. This research emphasizes the importance of scientific development, institutional transformation, and educational innovation to maintain the existence of Islamic boarding schools as transformative institutions that contribute to social change.

U-Space Social and Environmental Performance Indicators

The social potential of Urban Air Mobility (UAM) as a greener and faster transportation system in and around urban environments is indisputable. Nevertheless, the success of UAM introduction and its wide use will strongly depend on acceptance by the citizens and future UAM users. The impact on overall quality of life, as a multidimensional concept that encompasses physical health, mental and emotional well-being, economic status, education, and the environment, is becoming a significant issue. This paper aims to describe the performance framework for the assessment of the social and environmental impact of UAM. The specific objectives are to identify the full range of UAM’s impacts on citizens’ quality of life and to propose a set of indicators that enables the quantification and assessment of the identified impacts. Firstly, the main issues (focus areas) were identified, namely, noise, visual pollution, and privacy concerns, followed by access and equity, economic aspect, emissions, public safety, and impact on wildlife. In the next step, for each identified focus area, performance indicators were defined along with the several cross-cutting areas for a geographical, temporal, demographic, socioeconomic, and behavioral resolution. The proposed performance framework could enable more efficient mitigation measures and possibly contribute to wider adoption of the UAM operations.

Canon y Premio Nobel: un estado de la cuestión

This paper poses the following question: as a world institutional award, what is the influence of the Nobel Prize in Literature over the construction of the global canon? To answer it, we start from previous resea rch and analyze the studies on canon and Nobel Prize published in scientific journals indexed in the two main international databases: Web of Science, by Clarivate Analytics, and Scopus, by Elsevier, since both cover the current scientific production. After reading the articles which are relevant for the research objective, the centres of interest of this critical literature can be grouped into three large blocks: the concept of World Literature and its relationship with the Nobel Prize; the canonical characteristics of the works by Nobel Prize winners, and the influence of Nobel Prize in the process of creating the world canon. The conclusions question the monolithic and monumental character of the literary canon and advocate for a more transparent approach to its construction that considers economic and ideological aspects (beyond the formal or artistic value of the texts) as crucial for understanding its nature and evolution. For example, E. Lameborshi’s concept of ideological fluency and R. Walkowitz’s born translated novels are useful for understanding to what extent the common concepts of World Literature and canon have recently been redefined.

The techno-politics of computing the mind: Opening the black box of digital psychiatry.

Psychiatry has recently witnessed the launch of digital phenotyping as a new research agenda. According to digital phenotyping's hypothesis, data about a patient's daily behavior can be continuously collected through wearable monitoring devices and used to build software that would send warnings of mental relapse or would tailor treatment choices. The research is exploratory, and the claims upon which it is based are contentious. Drawing on interviews, we followed a research team that aspired to build a digital system that could send such warnings to patients with mental health disorders like depression and epilepsy. This enabled us to learn how a new instrument to measure mental function becomes constructed and what translations take place in this process. Here we pay particular attention to the role of patients as research collaborators. We observed the frictions and debates in the research team between different mental health knowledge regimes, seeing them before they were black-boxed and lost from sight. We aimed to understand how actors anticipate software and data analytics to function alongside physicians and patients, as well as how different accounts reconstitute the 'mental', 'therapy', or the 'social' itself. We discuss several 'dissociations' that occur along the research trajectory regarding: less motivated and underrepresented patients, the role of clinical knowledge derived from patient self-reporting, and the social, political, and economic aspects of a patient's life affecting mental health. In this sense, we want to open the black box of this new behavioral technoscience.

Economic Aspects of the Development of Civil Society Institutions in the Late Imperial Period on the Example of the Smolensk House of Diligence

The study of the history of charity makes it possible to more accurately identify the initial period of the creation of the foundations of civil society in Russia. The article is devoted to the analysis of the activities of the Smolensk House of Diligence as an example of charitable practice in the Russian Empire of the late XIX – early XX century. Using a specific example, the author examines the history of the creation and development of houses of diligence in the regional plane, their role in public life and their influence on the formation of basic narratives of civil society in the imperial reality of that period. Special attention is paid to the analysis of economic aspects within the framework of the Smolensk House of Diligence and their role in the formation of new principles of “non-pedigree” communication in the society of post-reform Russia. The study allows the author to conclude that the study of projects such as the activities of charitable societies through the prism of economic history makes it possible to more fully assess them in the context of the power aspirations of local social groups and the importance of these actors in the formation of civil society in the late Imperial period.

Prospects for Economic Cooperation between Russia and China in the Current Geopolitical Situation

Introduction. The article examines the topical issues of relations between the two countries amidst the current foreign policy situation. Relations between Russia and China are of great importance for both countries as well as for the global political and economic situation as a whole. Cooperation between these two largest states plays an important role in the formation of multipolarity in the world arena, weakening unipolar tendencies. The article analyzes the main aspects of cooperation between Russia and China, the components of their mutually beneficial partnership, and considers the challenges and prospects that both countries face in the changing geopolitical situation. Particular attention is paid to the economic and political aspects of interaction between Russia and China, and potential ways to strengthen and expand cooperation in the future are identified.Materials and methods. To analyze the current dynamics of bilateral relations, analytical methods of processing statistical data provided by government agencies of the Russian Federation were used, as well as the method of mirror statistics in order to identify the positions and shares of Russia in the geographical structure of China's foreign trade partners based on information provided by the State Customs Service of China. The paper also presents data obtained through expert assessment and social surveys. To conduct a systemic analysis, the authors applied the methods of induction, deduction, generalization, synthesis, and comparison.Results of the study. In the course of the study, the foreign policy agenda of the Russian Federation and the People's Republic of China was analyzed, and the areas of cooperation that are of greatest mutual interest to the two countries were identified - trade, investment, implementation of joint infrastructure, energy and other projects in the real sector of the economy.In addition, the authors of the article analyzed the dynamics and structure of bilateral trade and economic cooperation between Russia and China; factors of growth in trade turnover, Russian exports to China and Russian imports from China were identified. Next, the largest Russian-Chinese investment projects in the automotive industry, fuel and energy complex and infrastructure were considered. As a result, an assessment of the prospects for further development of bilateral trade and joint projects in the concerned areas was made.An analysis of the data obtained as part of a sociological survey was conducted, which made it possible to identify the most popular areas of cooperation between the two countries that are of greatest interest to the population of the PRC in the foresee[1] able future, including the creation of new transport corridors within the framework of the conjugation of the One Belt, One Road projects and the Eurasian Economic Union.Discussion and conclusion. Economic relations play a key role in the agenda of bilateral cooperation between Russia and China and have a multifaceted nature. The projected economic growth of Russian-Chinese cooperation in 2024 and beyond presupposes diversification of the structure of bilateral trade and an increase in the volume of goods and services offered. In the context of this forecast, special attention is paid to the focus on increasing gas exports from Russia to China, which leads to an expected increase in the share of gas supplies compared to oil supplies. In addition, an important factor contributing to the stimulation of economic growth is the increase in the volume of Russian agricultural exports to China, as well as the development of cooperation in the services sector.In order to achieve even more impressive results of economic cooperation with Russia's eastern neighbor, it is necessary to pay attention to solving urgent foreign trade problems of a structural nature, namely, working on export diversification and increasing the competitiveness of the expanding range of goods and services supplied to the Asian market. It is also necessary to provide comprehensive measures to support promising manufacturing and service sectors for export. The increase in trade turnover between the two countries stimulates the development of investment partnerships and the growth in the number of jointly implemented projects in the production and infrastructure sectors, which, in turn, creates conditions for deepening interregional cooperation and the formation of a more predictable and stable world order in the foreseeable future.

Heat transfer and economic characteristics of direct oil cooling for electric traction motor under driving cycles

Currently, the energy density of electric traction motor is continuously increasing to match the performance and reliability of electric vehicles with IC engine vehicles. The commercially employed water jacket cooling fails to achieve the desired efficiency of high energy density electric traction motor. Direct oil cooling is one of potential cooling strategies to replace the conventional cooling method for achieving the desired thermal management of next generation electric traction motors. However, the database to commercialize the direct oil cooling based on thermal management and economic aspects is not enriched sufficiently and thus extensive research studies need to be conducted in this field. Therefore, the heat transfer and economic characteristics of direct oil cooling for electric traction motor are investigated considering different cooling oils and driving duty cycles in the present work. The integrated electromagnetic-thermal numerical model is developed using ANSYS Motor-Cad commercial software to simulate the heat transfer and economic characteristics. The reliability of coupled numerical model is assured by validating the simulated results with experimental and reference data in error range of ± 5 %. The winding temperature, heat transfer coefficient, expected insulation lifetime, levelized cost of energy (LCOE), and net cumulative savings are evaluated as heat transfer and economic characteristics. Three driving duty cycles namely, UDDS (Urban Dynamometer Driving Schedule), NEDC (New European Driving Cycle) and US06 (Highway Driving Cycle) and transmission oil, shell thermal oil and Novec dielectric oil are investigated. The performance of electric traction motor with direct oil cooling is superior compared to that with water jacket cooling. The direct cooling with Novec dielectric oil shows improved heat transfer and economic characteristics compared to transmission oil and shell thermal oil. The direct cooling with Novec dielectric oil restricts the maximum winding temperature within 80.21 °C, 67.65 °C and 116.82 °C under driving cycles of UDDS, NEDC and US06, respectively. In addition, the enhanced insulation lifetime, heat transfer coefficient, LCOE and net cumulative savings of 7.91 × 105h, 23036.73 W/m2-K, 0.170 $/kWh and 47151.13 $, respectively are reflected for direct cooling with Novec dielectric oil.

Assessing the Techno-enviro-economic viability of wind farms to address electricity shortages and Foster sustainability in Palestine

This study critically examines the feasibility of wind turbines in addressing electricity shortages in the coastal region of Palestine. Assessing technical, economic, and environmental aspects offers vital insights for sustainable energy solutions. Hence, 10 turbines with different rated powers were selected to determine the optimal and economically viable solution. Wind velocities were assessed at altitudes of 10, 65, and 80 m. Various performance indicators such as wind power density, capacity factor (Cf), anticipated energy yield, cost of wind-generated electricity, benefit-cost ratio (BCR), and simple payback period were examined. The findings indicate that the Siemens SWT-2.3-93 turbine yields an annual energy production of 3910.3 MWh. The Lagerwey-LW58/750 turbine boasts the highest capacity factor at 20.5 % making it the most cost-effective option with generation costs of $0.0604/kWh to $0.0825/kWh. It exhibited the highest benefit-cost ratio, ranging from 1.287 to 1.758, and payback period of 6.33 years. Consequently, the Lagerwey-LW58/750 turbine emerges as the optimal choice for implementing the wind power plant project in Palestine's coastal region. The use of wind turbines to generate electricity leads to 3323.75 ton/year of emissions reduction. This research provides crucial insights for decision-makers aiming to tackle electricity shortages and enhance environmental sustainability in Palestine's energy sector.

The Influence of Social, Economic and Environmental Aspects on the Welfare of Traditional Diamond Mining in Cempaka District, Banjarbaru City, Indonesia

The Influence of Social, Economic and Environmental Aspects on the Welfare of Traditional Diamond Mining in Cempaka District, Banjarbaru City, Indonesia