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":"8 4","pages":""},"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":"81 3","pages":""},"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":"2001 9","pages":""},"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":"1 1","pages":""},"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":"11 1","pages":""},"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。
{"title":"Computing Topological Indices for Niobium Dioxide and Metal-Organic Frameworks via M-Polynomials","authors":"Muhammad Abdullah, Sikandar Raza, Muhammad Hussian, Hasan Mahmood","doi":"10.52783/pst.268","DOIUrl":"https://doi.org/10.52783/pst.268","url":null,"abstract":"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.","PeriodicalId":20420,"journal":{"name":"Power system technology","volume":"39 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140728180","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}
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":"37 7","pages":""},"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}
This distribution is a compound probability distribution constructed by compounding generalised Poisson distribution of Consul and Jain (1973) with Modified Mishra distribution of Sah (2022). All the important characteristics required for this distribution have been obtained and explained. In order to check the validity of the theoretical work, goodness of fit has been applied to some secondary data which have been used by others. It has been observed that this distribution gives a better fit than Poisson-Lindley distribution of Sankaran (1970) as well as Poisson-Modified Mishra distribution of Sah and Sahani (2023).
{"title":"Generalised Poisson-Modified Mishra distribution","authors":"Binod Kumar Sah, Suresh Kumar Sahani","doi":"10.52783/pst.261","DOIUrl":"https://doi.org/10.52783/pst.261","url":null,"abstract":"This distribution is a compound probability distribution constructed by compounding generalised Poisson distribution of Consul and Jain (1973) with Modified Mishra distribution of Sah (2022). All the important characteristics required for this distribution have been obtained and explained. In order to check the validity of the theoretical work, goodness of fit has been applied to some secondary data which have been used by others. It has been observed that this distribution gives a better fit than Poisson-Lindley distribution of Sankaran (1970) as well as Poisson-Modified Mishra distribution of Sah and Sahani (2023).","PeriodicalId":20420,"journal":{"name":"Power system technology","volume":"306 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140751107","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}
In this research, the effect of soil and structure interaction is investigated in a structure equipped with rotational friction dampers, with several earthquake records and two types of soil. It was modeled in SAP 2000 software and analyzed under the nonlinear dynamic analysis of the time history with the records of the San Fernando, Northridge, and Imperial Valley earthquakes. The used soil was considered relatively "hard" and relatively "soft" soil based on two types of two and three soil groups based on the 2800 regulation. In this research, the soil and structure complex was subjected to the effect of three earthquake records, and after the vibration, the parameter, and the lateral displacement on the desired structure were investigated. Based on the obtained results, it can be said that the displacements in the structure with the damper have been significantly reduced and also the soil interaction effect is minor in type two or hard soils, while the analysis with the interaction effect in a soft soil It has a significant effect on the displacement of the structure, also the rotational friction dampers were able to reduce the displacement of floors and drift in both types of soil. For this reason, the structure was analyzed in two different soil types with damper and with interaction effect, with damper and without interaction effect, without damper and with interaction effect and without damper and interaction effect, in general, it can be said in soft soil. Damping of the soil has a significant role in reducing the forces and deformations of the frame. The effect of the interaction between the soil and the structure in the structures whose underlying soil is soft should be subjected to nonlinear dynamic analysis.
在这项研究中，研究人员利用多次地震记录和两种类型的土壤，对装有旋转摩擦阻尼器的结构进行了土壤与结构相互作用效应的研究。该结构在 SAP 2000 软件中建模，并根据圣费尔南多、北岭和帝国谷地震的时间历史记录进行非线性动态分析。所使用的土壤被认为是相对 "硬 "和相对 "软 "的土壤，基于 2800 规定的两类土壤组和三类土壤组。在这项研究中，土壤和结构复合体受到了三次地震记录的影响，并在振动后对所需结构的参数和侧向位移进行了研究。根据所获得的结果，可以说带有阻尼器的结构的位移明显减小，而且在二类土或硬土中，土壤相互作用效应较小，而在软土中，带有相互作用效应的分析对结构的位移有显著影响，同时旋转摩擦阻尼器能够减小两种土壤中的楼层位移和漂移。因此，在两种不同的土壤类型中，对结构进行了带阻尼器和交互作用效应、带阻尼器和不带交互作用效应、不带阻尼器和交互作用效应以及不带阻尼器和交互作用效应的分析。土壤的阻尼对减少框架的力和变形具有重要作用。对于底层土为软土的结构，土与结构之间的相互作用效应应进行非线性动力分析。
{"title":"Investigating the Displacement of a Structure Equipped with Rotational Friction Damper: Considering the Structure-soil Interaction Effect","authors":"Saeed Abachi, Alireza Lork, Ali Nikkhoo","doi":"10.52783/pst.246","DOIUrl":"https://doi.org/10.52783/pst.246","url":null,"abstract":"In this research, the effect of soil and structure interaction is investigated in a structure equipped with rotational friction dampers, with several earthquake records and two types of soil. It was modeled in SAP 2000 software and analyzed under the nonlinear dynamic analysis of the time history with the records of the San Fernando, Northridge, and Imperial Valley earthquakes. The used soil was considered relatively \"hard\" and relatively \"soft\" soil based on two types of two and three soil groups based on the 2800 regulation. \u0000In this research, the soil and structure complex was subjected to the effect of three earthquake records, and after the vibration, the parameter, and the lateral displacement on the desired structure were investigated. Based on the obtained results, it can be said that the displacements in the structure with the damper have been significantly reduced and also the soil interaction effect is minor in type two or hard soils, while the analysis with the interaction effect in a soft soil It has a significant effect on the displacement of the structure, also the rotational friction dampers were able to reduce the displacement of floors and drift in both types of soil. For this reason, the structure was analyzed in two different soil types with damper and with interaction effect, with damper and without interaction effect, without damper and with interaction effect and without damper and interaction effect, in general, it can be said in soft soil. Damping of the soil has a significant role in reducing the forces and deformations of the frame. The effect of the interaction between the soil and the structure in the structures whose underlying soil is soft should be subjected to nonlinear dynamic analysis.","PeriodicalId":20420,"journal":{"name":"Power system technology","volume":" 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140387145","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}
Multilevel inverters (MLI) are important and widely accepted under DC to AC converter family for medium and low power applications. In the paper a “new inverter topology” for multi-level is developed. The primary purpose of the work is to reduce the switch count number for considerable level of output voltage and also to reduce gate drives required. It also aims at analysis of performance of proposed topology of new multilevel inverter. Output of fifteen stages is generated from the proposed topology. For which only eight switching devices, four diode and three asymmetrical sources are used. Thus, the space and cost for installation is reduced. The designed topology is simulated with normal “pulse width modulation (PWM)” as well as “sinusoidal pulse width modulation (SPWM)”. Both the Simulation results are discussed with respect to “output voltage, current, Total Harmonic Distortion (THD)”. A comparative study is also made between the topology developed with few other latest MLI topologies.
{"title":"Performance Analysis of a Novel Multilevel Inverter with Reduced Number of Switches","authors":"Renukaprasad .G, V. S. Kirthika Devi","doi":"10.52783/pst.236","DOIUrl":"https://doi.org/10.52783/pst.236","url":null,"abstract":"Multilevel inverters (MLI) are important and widely accepted under DC to AC converter family for medium and low power applications. In the paper a “new inverter topology” for multi-level is developed. The primary purpose of the work is to reduce the switch count number for considerable level of output voltage and also to reduce gate drives required. It also aims at analysis of performance of proposed topology of new multilevel inverter. Output of fifteen stages is generated from the proposed topology. For which only eight switching devices, four diode and three asymmetrical sources are used. Thus, the space and cost for installation is reduced. The designed topology is simulated with normal “pulse width modulation (PWM)” as well as “sinusoidal pulse width modulation (SPWM)”. Both the Simulation results are discussed with respect to “output voltage, current, Total Harmonic Distortion (THD)”. A comparative study is also made between the topology developed with few other latest MLI topologies.","PeriodicalId":20420,"journal":{"name":"Power system technology","volume":"73 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140250842","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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