The aim of this scientific research is to study the effect of electromagnetic waves of the terahertz range on the frequency of molecular oxygen (129.0 GHz) on the processes of lipid peroxidation in experimental animals under chronic stress. Overtraining is a psychological and/or physiological condition that manifests itself as impairment in athletic performance. This condition may be based on prolonged competitive stress and stressful psychological factors that can lead to the activation of lipid peroxidation processes (LPO). Moreover, the activation of the processes of lipoperoxidation is the main pathogenetic link of many socially significant diseases, especially cardiovascular disease. These circumstances require the development of modern and relevant methods of prevention and treatment of post-stress disorders. In the last ten years, a new method has been used to assess the effect of stress on the pro-oxidant activity of blood plasma and the concentration of antioxidants by exposure to electromagnetic radiation. In this paper electromagnetic waves of terahertz range, at frequencies of active cellular metabolites, were used to correct the processes of lipoperoxidation (LPO) changes at chronic stress. The innovative device "Оrbit" was used to emit Terahertz (THz) radiation at frequencies of molecular oxygen 129,0 GHz in fractional mode. From the marked activation of lipid peroxidation processes and inhibition of antioxidant activity of blood, it is possible to observe a partial normalization, in the conditions of long-term immobilization or through cold water swimming of animals (rats), by using THz waves 5 days for 15 minutes; moreover, if the same procedure was applied for 30 minutes, a complete normalization of lipid peroxidation and antioxidant levels in the blood of stressed animals occurred. The study shows the high efficiency and expediency of using the device for terahertz therapy "Orbit" in the correction of altered processes of lipid peroxidation and it encourages future application for humans. DOI: https://doi.org/10.52783/pst.289
{"title":"The Effect of Electromagnetic Waves of the Terahertz Range on the Frequency of Molecular Oxygen (129.0 Ghz) On the Processes of Lipid Peroxidation in Experimental Animals Under Chronic Stress","authors":"Victoria Zaborova Et.al","doi":"10.52783/pst.289","DOIUrl":"https://doi.org/10.52783/pst.289","url":null,"abstract":"The aim of this scientific research is to study the effect of electromagnetic waves of the terahertz range on the frequency of molecular oxygen (129.0 GHz) on the processes of lipid peroxidation in experimental animals under chronic stress.\u0000Overtraining is a psychological and/or physiological condition that manifests itself as impairment in athletic performance. This condition may be based on prolonged competitive stress and stressful psychological factors that can lead to the activation of lipid peroxidation processes (LPO). Moreover, the activation of the processes of lipoperoxidation is the main pathogenetic link of many socially significant diseases, especially cardiovascular disease. These circumstances require the development of modern and relevant methods of prevention and treatment of post-stress disorders. In the last ten years, a new method has been used to assess the effect of stress on the pro-oxidant activity of blood plasma and the concentration of antioxidants by exposure to electromagnetic radiation. In this paper electromagnetic waves of terahertz range, at frequencies of active cellular metabolites, were used to correct the processes of lipoperoxidation (LPO) changes at chronic stress. The innovative device \"Оrbit\" was used to emit Terahertz (THz) radiation at frequencies of molecular oxygen 129,0 GHz in fractional mode. From the marked activation of lipid peroxidation processes and inhibition of antioxidant activity of blood, it is possible to observe a partial normalization, in the conditions of long-term immobilization or through cold water swimming of animals (rats), by using THz waves 5 days for 15 minutes; moreover, if the same procedure was applied for 30 minutes, a complete normalization of lipid peroxidation and antioxidant levels in the blood of stressed animals occurred. The study shows the high efficiency and expediency of using the device for terahertz therapy \"Orbit\" in the correction of altered processes of lipid peroxidation and it encourages future application for humans.\u0000DOI: https://doi.org/10.52783/pst.289\u0000 ","PeriodicalId":20420,"journal":{"name":"Power system technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140690962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Saeed Mirnejati, Hosein Aslipour, Seyed Mehdi Alvani
Objective: This article uses the ultra-compound method to provide systematic framework of effective factors. Method: Meta-composition method is choosing 470 related articles and research in 2000-2024 from Web of Science citation index. This research is qualitative and interpretive paradigm aiming to discover the characteristics of development policy governance. Also, in terms of research time, it is cross-sectional. Results: The characteristics of this new approach to transition of governance can be seen in four categories; The role of the state, university, society and the market. Each of these four groups also has parts below. Conclusion: The issues of "power and policy developments, policy processes improvement" and "Information exchange,trust and diverse", the researchers have had more and more different research on issues of "qualitative and quantitative development" and "raising of the student's generation" and have not been studied in different dimensions. On this basis and regarding the importance of policy issues, implementation of policies, future research can pay more attention to the recent two dimensions. The findings of this study can be useful for applying new approaches to improve governance transformation in different policy fields. DOI: https://doi.org/10.52783/pst.290
目的本文采用超复合方法提供有效因素的系统框架：方法：采用元组合方法，从 Web of Science 引文索引中选取 2000-2024 年间的 470 篇相关文章和研究。本研究采用定性和解释范式，旨在发现发展政策治理的特点。同时，在研究时间上，本研究为横断面研究：从国家、大学、社会和市场的作用这四个方面可以看出这种新的治理转型方法的特点。这四类中的每一类也都有以下部分：在 "权力与政策发展、政策流程改进 "和 "信息交流、信任与多样化 "等问题上，研究人员对 "质与量的发展 "和 "学生一代的培养 "等问题的研究越来越多，但并没有从不同的维度进行研究。在此基础上，考虑到政策问题、政策实施的重要性，今后的研究可以更多地关注最近的两个维度。本研究的结论有助于在不同政策领域应用新方法来改善治理转型。DOI: https://doi.org/10.52783/pst.290
{"title":"Presenting a Systematic Framework of Factors Influencing the Policy of University Governance Transformation","authors":"Saeed Mirnejati, Hosein Aslipour, Seyed Mehdi Alvani","doi":"10.52783/pst.290","DOIUrl":"https://doi.org/10.52783/pst.290","url":null,"abstract":"Objective: This article uses the ultra-compound method to provide systematic framework of effective factors.\u0000Method: Meta-composition method is choosing 470 related articles and research in 2000-2024 from Web of Science citation index. This research is qualitative and interpretive paradigm aiming to discover the characteristics of development policy governance. Also, in terms of research time, it is cross-sectional.\u0000Results: The characteristics of this new approach to transition of governance can be seen in four categories; The role of the state, university, society and the market. Each of these four groups also has parts below.\u0000Conclusion: The issues of \"power and policy developments, policy processes improvement\" and \"Information exchange,trust and diverse\", the researchers have had more and more different research on issues of \"qualitative and quantitative development\" and \"raising of the student's generation\" and have not been studied in different dimensions. On this basis and regarding the importance of policy issues, implementation of policies, future research can pay more attention to the recent two dimensions. The findings of this study can be useful for applying new approaches to improve governance transformation in different policy fields.\u0000DOI: https://doi.org/10.52783/pst.290","PeriodicalId":20420,"journal":{"name":"Power system technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140690578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dr. Elma Sibonghanoy Groenewald, María Teresa Espinosa-Jaramillo, Apeksha Garg, Kartik D Pipalia, Dr. Vijayakumar Umasekar, Dr. Coenrad Adolph, Groenewald
The pursuit of a circular economy has emerged as a viable solution to address the environmental and economic challenges posed by traditional linear production and consumption models. In this context, the integration of circular economy principles within supply chain management has garnered attention as a means to achieve zero waste and enhance sustainability. [1],[2] This paper explores the application of circular economy strategies in supply chain management, focusing on the transition towards zero waste. Through a comprehensive analysis of existing literature, case studies, and best practices, the paper examines key principles, challenges, and opportunities associated with adopting circular economy strategies in supply chains. It highlights the importance of design for circularity, resource optimization, collaboration, and integration across supply chain tiers. Furthermore, the paper discusses the role of stakeholders, policy frameworks, and technological advancements in facilitating the transition to a circular economy. By synthesizing insights from various sources, this paper provides a holistic understanding of the implications and benefits of integrating circular economy strategies in supply chain management. Ultimately, it underscores the importance of businesses embracing sustainability and innovation to create more resilient and efficient supply chains while minimizing environmental impact.
{"title":"Circular Economy Strategies in Supply Chain Management: Towards Zero Waste.","authors":"Dr. Elma Sibonghanoy Groenewald, María Teresa Espinosa-Jaramillo, Apeksha Garg, Kartik D Pipalia, Dr. Vijayakumar Umasekar, Dr. Coenrad Adolph, Groenewald","doi":"10.52783/pst.291","DOIUrl":"https://doi.org/10.52783/pst.291","url":null,"abstract":"The pursuit of a circular economy has emerged as a viable solution to address the environmental and economic challenges posed by traditional linear production and consumption models. In this context, the integration of circular economy principles within supply chain management has garnered attention as a means to achieve zero waste and enhance sustainability. [1],[2] This paper explores the application of circular economy strategies in supply chain management, focusing on the transition towards zero waste. Through a comprehensive analysis of existing literature, case studies, and best practices, the paper examines key principles, challenges, and opportunities associated with adopting circular economy strategies in supply chains. It highlights the importance of design for circularity, resource optimization, collaboration, and integration across supply chain tiers. Furthermore, the paper discusses the role of stakeholders, policy frameworks, and technological advancements in facilitating the transition to a circular economy. By synthesizing insights from various sources, this paper provides a holistic understanding of the implications and benefits of integrating circular economy strategies in supply chain management. Ultimately, it underscores the importance of businesses embracing sustainability and innovation to create more resilient and efficient supply chains while minimizing environmental impact.","PeriodicalId":20420,"journal":{"name":"Power system technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140694671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Victoria Zaborova, Svetlana Prokhorova, Yana Ambartsumova, Victoria Solntseva, Elena Kravtsova, Ekaterina Diachkova, Klevantsova Tatiana, Natalia Zhukova, Vitaly Rybakov, Hassan Shafaei, Marina Manina
The present study seeks to conduct a Structural equation modeling to examine the impact of intellectual capital on the organizational performance of sports federations. The method is correlational and survey. The population consists of all sports federations. A sample of 242 individuals were selected by Morgan's table and the random sampling method. The research utilizes Bontis' (2007) intellectual capital questionnaire and Yang's (2004) organizational performance questionnaire as measurement tools. The surveys' validity was verified by 8 professors specializing in sports management. The reliability of the research questionnaires was assessed using Cronbach's alpha coefficient, yielding values of 0.83 and 0.91 for the relevant questionnaires. The data analysis employed Pearson's correlation test and structural equation modelling. The GFI index of 0.95, AGFI index of 0.96, NFI index of 0.97, CFI index of 0.95, and RMSEA index of 0.031 all suggested that the structural modelling fit. The findings indicated that intellectual capital, as evidenced by a beta coefficient of 0.63, was a reliable predictor of organizational performance. The overall findings indicate that the augmentation of intellectual capital and its various components within the firm resulted in improved employee performance. DOI: https://doi.org/10.52783/pst.283
{"title":"Structural Equation Modeling of the Impact of Intellectual Capital on the Organizational Performance of Sports Federations.","authors":"Victoria Zaborova, Svetlana Prokhorova, Yana Ambartsumova, Victoria Solntseva, Elena Kravtsova, Ekaterina Diachkova, Klevantsova Tatiana, Natalia Zhukova, Vitaly Rybakov, Hassan Shafaei, Marina Manina","doi":"10.52783/pst.283","DOIUrl":"https://doi.org/10.52783/pst.283","url":null,"abstract":"The present study seeks to conduct a Structural equation modeling to examine the impact of intellectual capital on the organizational performance of sports federations. The method is correlational and survey. The population consists of all sports federations. A sample of 242 individuals were selected by Morgan's table and the random sampling method. The research utilizes Bontis' (2007) intellectual capital questionnaire and Yang's (2004) organizational performance questionnaire as measurement tools. The surveys' validity was verified by 8 professors specializing in sports management. The reliability of the research questionnaires was assessed using Cronbach's alpha coefficient, yielding values of 0.83 and 0.91 for the relevant questionnaires. The data analysis employed Pearson's correlation test and structural equation modelling. The GFI index of 0.95, AGFI index of 0.96, NFI index of 0.97, CFI index of 0.95, and RMSEA index of 0.031 all suggested that the structural modelling fit. The findings indicated that intellectual capital, as evidenced by a beta coefficient of 0.63, was a reliable predictor of organizational performance. The overall findings indicate that the augmentation of intellectual capital and its various components within the firm resulted in improved employee performance.\u0000DOI: https://doi.org/10.52783/pst.283","PeriodicalId":20420,"journal":{"name":"Power system technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140705456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The advent of Artificial Intelligence (AI) has revolutionized the energy management landscape for smart buildings, offering unparalleled opportunities for optimizing energy consumption, enhancing operational efficiency, and advancing sustainability goals. This paper provides a comprehensive review of AI-driven energy management systems tailored for smart buildings, exploring their multifaceted functionalities, benefits, challenges, and future prospects. [1],[4] By synthesizing existing literature and case studies, this research aims to elucidate the transformative potential of AI in reshaping the way energy is managed and utilized in the built environment. AI-driven energy management systems leverage advanced algorithms, machine learning techniques, and data analytics to intelligently monitor, analyze, and optimize energy usage within smart buildings. These systems integrate diverse components such as sensing devices, data preprocessing modules, optimization algorithms, and control systems to achieve optimal performance. Key functionalities include predictive analytics for energy demand forecasting, adaptive control of heating, ventilation, and air conditioning (HVAC) systems, dynamic lighting management based on occupancy patterns, and integration with renewable energy sources to enhance sustainability. AI enables smart buildings to participate in demand response programs, dynamically adjusting energy consumption in response to grid conditions and pricing signals. This flexibility not only reduces operational costs but also contributes to grid stability and resilience. However, the widespread adoption of AI-driven energy management systems faces several challenges, including data privacy concerns, interoperability issues, and the need for skilled personnel to operate and maintain these sophisticated systems.The paper underscores the importance of AI-driven energy management systems as transformative tools for optimizing energy utilization, improving building performance, and advancing sustainability objectives in the era of smart buildings. DOI: https://doi.org/10.52783/pst.280
{"title":"AI-Driven Energy Management Systems for Smart Buildings.","authors":"Balakumar Muniandi, Purushottam Kumar Maurya, CH Bhavani, Shailesh Kulkarni, Ramswaroop Reddy Yellu, Nidhi C","doi":"10.52783/pst.280","DOIUrl":"https://doi.org/10.52783/pst.280","url":null,"abstract":"The advent of Artificial Intelligence (AI) has revolutionized the energy management landscape for smart buildings, offering unparalleled opportunities for optimizing energy consumption, enhancing operational efficiency, and advancing sustainability goals. This paper provides a comprehensive review of AI-driven energy management systems tailored for smart buildings, exploring their multifaceted functionalities, benefits, challenges, and future prospects. [1],[4] By synthesizing existing literature and case studies, this research aims to elucidate the transformative potential of AI in reshaping the way energy is managed and utilized in the built environment. AI-driven energy management systems leverage advanced algorithms, machine learning techniques, and data analytics to intelligently monitor, analyze, and optimize energy usage within smart buildings. These systems integrate diverse components such as sensing devices, data preprocessing modules, optimization algorithms, and control systems to achieve optimal performance. Key functionalities include predictive analytics for energy demand forecasting, adaptive control of heating, ventilation, and air conditioning (HVAC) systems, dynamic lighting management based on occupancy patterns, and integration with renewable energy sources to enhance sustainability. AI enables smart buildings to participate in demand response programs, dynamically adjusting energy consumption in response to grid conditions and pricing signals. This flexibility not only reduces operational costs but also contributes to grid stability and resilience. However, the widespread adoption of AI-driven energy management systems faces several challenges, including data privacy concerns, interoperability issues, and the need for skilled personnel to operate and maintain these sophisticated systems.The paper underscores the importance of AI-driven energy management systems as transformative tools for optimizing energy utilization, improving building performance, and advancing sustainability objectives in the era of smart buildings.\u0000DOI: https://doi.org/10.52783/pst.280","PeriodicalId":20420,"journal":{"name":"Power system technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140707859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Apeksha Garg, Suman Prasad Maurya, M. Bhagya Laxmi, Ketan J. Raut, Sai Santosh Yerasuri, Ravindra M Sh
As urbanization accelerates globally, the concept of smart cities emerges as a promising solution to address the multifaceted challenges of sustainable urban development. Smart cities leverage advanced technologies to enhance efficiency, sustainability, and quality of life for their residents. Concurrently, the evolution of supply chain management towards smart supply chains has gained traction, driven by the imperative of optimizing logistics, minimizing waste, and enhancing resilience. This paper explores the integration of smart cities and smart supply chains as a holistic approach to foster sustainable urban development. The integration of smart cities and smart supply chains presents a symbiotic relationship wherein advancements in one domain catalyze improvements in the other. Smart cities rely on seamless and efficient supply chain operations to ensure the smooth flow of goods and services, essential for meeting the needs of urban inhabitants. [1],[2] Conversely, smart supply chains benefit from the data-rich environment and infrastructure of smart cities to optimize routing, inventory management, and last-mile delivery, thereby reducing environmental impact and enhancing overall efficiency. Key components of this integration include the utilization of Internet of Things (IoT) devices, big data analytics, artificial intelligence (AI), and blockchain technology to enable real-time monitoring, predictive analytics, and transparent, secure transactions throughout the urban supply chain. By harnessing these technologies, cities can achieve significant improvements in resource utilization, energy efficiency, and carbon footprint reduction. Furthermore, the paper examines the role of public-private partnerships (PPPs) and regulatory frameworks in facilitating the integration of smart cities and smart supply chains. Collaborative efforts between government entities, industry stakeholders, and technology providers are essential to overcome barriers such as data privacy concerns, interoperability challenges, and investment constraints. In conclusion, the integration of smart cities and smart supply chains represents a promising pathway towards achieving the goals of sustainability, resilience, and prosperity in urban environments. By embracing innovative technologies and fostering collaboration, cities can pave the way for a more efficient, equitable, and environmentally conscious future.
{"title":"Smart Cities and Smart Supply Chain: Integration for Sustainable Urban Development.","authors":"Apeksha Garg, Suman Prasad Maurya, M. Bhagya Laxmi, Ketan J. Raut, Sai Santosh Yerasuri, Ravindra M Sh","doi":"10.52783/pst.271","DOIUrl":"https://doi.org/10.52783/pst.271","url":null,"abstract":"As urbanization accelerates globally, the concept of smart cities emerges as a promising solution to address the multifaceted challenges of sustainable urban development. Smart cities leverage advanced technologies to enhance efficiency, sustainability, and quality of life for their residents. Concurrently, the evolution of supply chain management towards smart supply chains has gained traction, driven by the imperative of optimizing logistics, minimizing waste, and enhancing resilience. This paper explores the integration of smart cities and smart supply chains as a holistic approach to foster sustainable urban development. The integration of smart cities and smart supply chains presents a symbiotic relationship wherein advancements in one domain catalyze improvements in the other. Smart cities rely on seamless and efficient supply chain operations to ensure the smooth flow of goods and services, essential for meeting the needs of urban inhabitants. [1],[2] Conversely, smart supply chains benefit from the data-rich environment and infrastructure of smart cities to optimize routing, inventory management, and last-mile delivery, thereby reducing environmental impact and enhancing overall efficiency. Key components of this integration include the utilization of Internet of Things (IoT) devices, big data analytics, artificial intelligence (AI), and blockchain technology to enable real-time monitoring, predictive analytics, and transparent, secure transactions throughout the urban supply chain. By harnessing these technologies, cities can achieve significant improvements in resource utilization, energy efficiency, and carbon footprint reduction. Furthermore, the paper examines the role of public-private partnerships (PPPs) and regulatory frameworks in facilitating the integration of smart cities and smart supply chains. Collaborative efforts between government entities, industry stakeholders, and technology providers are essential to overcome barriers such as data privacy concerns, interoperability challenges, and investment constraints. In conclusion, the integration of smart cities and smart supply chains represents a promising pathway towards achieving the goals of sustainability, resilience, and prosperity in urban environments. By embracing innovative technologies and fostering collaboration, cities can pave the way for a more efficient, equitable, and environmentally conscious future.","PeriodicalId":20420,"journal":{"name":"Power system technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140718499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vahid Yousefi Ramandi, Mahmoud Mosavi Mashhadi Keivan Hosseini Safari, Mohammad Mahdi Kheirikhah
Axial crush tests on Uniform Thickness (UT) and Functionally Graded Thickness (FGT) tubes have been performed for external inversion process, and crashworthiness performance, and benefits of FGT tubes compared with their UT equivalents. Furthermore, in order to find detail verification about crush process of FGT tubes, Finite element (FE) models developed using explicit FE code under axial loading. Then, these FE models validated by experimental tests to ensure that they can accurately predict the responses of FGT inversion tubes. Our study shows that tube thickness distribution, die radius, and coefficient of friction between die and tube have great influence on the responses of FGT tubes inversion. The results give new design ideas to improve crashworthiness performance of inversion tubes. DOI: https://doi.org/10.52783/pst.272
对均匀厚度（UT）和功能分级厚度（FGT）钢管进行了轴向挤压试验，以了解外部反转过程、耐撞性以及 FGT 钢管与其等同的 UT 钢管相比的优势。此外，为了详细验证 FGT 管的挤压过程，使用明确的 FE 代码开发了轴向加载下的有限元 (FE) 模型。然后，通过实验测试对这些有限元模型进行验证，以确保它们能够准确预测 FGT 反转管的响应。我们的研究表明，管子厚度分布、模具半径以及模具与管子之间的摩擦系数对 FGT 反转管的响应有很大影响。 研究结果为提高反转管的防撞性能提供了新的设计思路。DOI: https://doi.org/10.52783/pst.272
{"title":"Crush Analysis of External Inversion of Tubes with Variable Thickness Distribution","authors":"Vahid Yousefi Ramandi, Mahmoud Mosavi Mashhadi Keivan Hosseini Safari, Mohammad Mahdi Kheirikhah","doi":"10.52783/pst.272","DOIUrl":"https://doi.org/10.52783/pst.272","url":null,"abstract":"Axial crush tests on Uniform Thickness (UT) and Functionally Graded Thickness (FGT) tubes have been performed for external inversion process, and crashworthiness performance, and benefits of FGT tubes compared with their UT equivalents. Furthermore, in order to find detail verification about crush process of FGT tubes, Finite element (FE) models developed using explicit FE code under axial loading. Then, these FE models validated by experimental tests to ensure that they can accurately predict the responses of FGT inversion tubes. Our study shows that tube thickness distribution, die radius, and coefficient of friction between die and tube have great influence on the responses of FGT tubes inversion. The results give new design ideas to improve crashworthiness performance of inversion tubes.\u0000DOI: https://doi.org/10.52783/pst.272","PeriodicalId":20420,"journal":{"name":"Power system technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140718322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mehdi Haddad Oskouee, Samad Aali, Morteza Honarmand Azimi, Mohammad Pasban
This research sought to study and examine the model of acceptance and use of insurance technologies using the ISM-DEMATEL method. According to the purpose and nature of this research, in terms of method, it was a qualitative research that was conducted by interviewing research experts. The statistical population was university professors in the field of insurance and senior managers of insurance companies, beneficiaries and policyholders. In this section, sampling was done theoretically. In theoretical sampling, events are sampled, not necessarily individuals. If people are also referred to, the main and key goal is to explore events. The interviews continued until theoretical saturation was ensured. In this study, saturation happened with 12 experts (university professors in the field of insurance and senior managers of insurance companies, beneficiaries and policy holders). The results showed that based on the research findings, it can be seen that the first level includes practical factors, knowledge management, infrastructure, behavioral factors, the second level includes managerial factors, and the third level includes technology perception. Based on the findings, it can be seen that practical factors, knowledge management, infrastructure, behavioral factors are connected factors, managerial factors are autonomous factors, and technology perception is an influencing factor. DOI: https://doi.org/10.52783/pst.273
{"title":"Presenting the Model of Acceptance and Use of Insurance Technologies Using the ISM-DEMATEL Method","authors":"Mehdi Haddad Oskouee, Samad Aali, Morteza Honarmand Azimi, Mohammad Pasban","doi":"10.52783/pst.273","DOIUrl":"https://doi.org/10.52783/pst.273","url":null,"abstract":"This research sought to study and examine the model of acceptance and use of insurance technologies using the ISM-DEMATEL method. According to the purpose and nature of this research, in terms of method, it was a qualitative research that was conducted by interviewing research experts. The statistical population was university professors in the field of insurance and senior managers of insurance companies, beneficiaries and policyholders. In this section, sampling was done theoretically. In theoretical sampling, events are sampled, not necessarily individuals. If people are also referred to, the main and key goal is to explore events. The interviews continued until theoretical saturation was ensured. In this study, saturation happened with 12 experts (university professors in the field of insurance and senior managers of insurance companies, beneficiaries and policy holders). The results showed that based on the research findings, it can be seen that the first level includes practical factors, knowledge management, infrastructure, behavioral factors, the second level includes managerial factors, and the third level includes technology perception. Based on the findings, it can be seen that practical factors, knowledge management, infrastructure, behavioral factors are connected factors, managerial factors are autonomous factors, and technology perception is an influencing factor.\u0000DOI: https://doi.org/10.52783/pst.273","PeriodicalId":20420,"journal":{"name":"Power system technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140720200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Muhammad Abdullah, Sikandar Raza, Muhammad Hussian, Hasan Mahmood
This paper investigates the topological properties of metal-organic frameworks and niobium dioxide using M-polynomials. The stability and wide range of bonding that the molecule exhibits make it a promising candidate for a number of uses, such as energy storage, gas detection, and catalysis. We use M-polynomials to calculate several degree-based topological indices for metal-organic frameworks and niobium dioxide. The M-polynomial is one such fundamental polynomial that provides a way to derive a multitude of degree-based topological indices. These indices are crucial for research in chemistry, biology, and physics and are derived from degree-based M-polynomials. This work develops a new M-polynomial algorithm for the computation and comparison of several degree-based molecular descriptors.
本文利用 M-多项式研究了金属有机框架和二氧化铌的拓扑特性。二氧化铌分子的稳定性和广泛的成键范围使其有望用于能源储存、气体检测和催化等多种用途。我们利用 M 多项式计算了金属有机框架和二氧化铌的若干基于度数的拓扑指数。M 多项式就是这样一种基本多项式，它为推导多种基于度数的拓扑指数提供了一种方法。这些指数对于化学、生物学和物理学研究至关重要，它们都是从基于度的 M 多项式中推导出来的。这项研究开发了一种新的 M 多项式算法，用于计算和比较多个基于度的分子描述符。
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This paper, provides the design and simulation of the control modes of three different power sources that are commonly used in hybrid systems especially when combining the sources of photovoltaic (PV), electric vehicles (EV) and Energy storage system (ESS). The control scenarios discuss the different combinations of sources and loads based on ternary logic system (0,1,2) that has many advantages over the classical binary logic system (0,1). To prove that, first, the ternary logic gates must be verified and simulated as MOSFET by Matlab / Simulink then a ternary logic control (TLCU) will be designed. TLCU can select the right direction of power flow from the energy source to the load based on the ternary truth table that shows the relationship between the inputs (ternary states of sources and loads) and each output that has only two states (ON or Off). At the end of the paper, the circuit of a ternary logic control circuit that can optimize the number of used elements of MOSFET is designed and tested. Comparing to binary, it is expected not only to optimize the number of MOSFET but also to accelerate the speed of operation.
{"title":"Control Unit of a Three-Ports Hybrid Converter of a Microgrid Based on Ternary Logic Circuits","authors":"Hassan Amin Osseily","doi":"10.52783/pst.267","DOIUrl":"https://doi.org/10.52783/pst.267","url":null,"abstract":"This paper, provides the design and simulation of the control modes of three different power sources that are commonly used in hybrid systems especially when combining the sources of photovoltaic (PV), electric vehicles (EV) and Energy storage system (ESS). The control scenarios discuss the different combinations of sources and loads based on ternary logic system (0,1,2) that has many advantages over the classical binary logic system (0,1). To prove that, first, the ternary logic gates must be verified and simulated as MOSFET by Matlab / Simulink then a ternary logic control (TLCU) will be designed. TLCU can select the right direction of power flow from the energy source to the load based on the ternary truth table that shows the relationship between the inputs (ternary states of sources and loads) and each output that has only two states (ON or Off). At the end of the paper, the circuit of a ternary logic control circuit that can optimize the number of used elements of MOSFET is designed and tested. Comparing to binary, it is expected not only to optimize the number of MOSFET but also to accelerate the speed of operation.","PeriodicalId":20420,"journal":{"name":"Power system technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140734513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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