Believe it or not, using compressed air to power vehicles is a real thing. This innovative concept, known as the "pneumatic vehicle," has captured the interest of researchers worldwide. It is hailed for its zero emissions and suitability for city driving. MDI is a company that holds the international patents for this technology. While it may appear to be an eco-friendly solution, the energy needed to compress air must be factored in when assessing its overall efficiency. Despite this, pneumatic vehicles offer promise in reducing urban air pollution over time. These vehicles, also referred to as air-powered or compressed air vehicles, represent a cutting-edge mode of transportation.
{"title":"Pneumatic Vehicle: Prototype that Function on Pneumatic System","authors":"Aditya Gurung, Sashi Saker Sharma, Budam Tamang, Gyanam Lepcha","doi":"10.55529/ijasm.44.1.8","DOIUrl":"https://doi.org/10.55529/ijasm.44.1.8","url":null,"abstract":"Believe it or not, using compressed air to power vehicles is a real thing. This innovative concept, known as the \"pneumatic vehicle,\" has captured the interest of researchers worldwide. It is hailed for its zero emissions and suitability for city driving. MDI is a company that holds the international patents for this technology. While it may appear to be an eco-friendly solution, the energy needed to compress air must be factored in when assessing its overall efficiency. Despite this, pneumatic vehicles offer promise in reducing urban air pollution over time. These vehicles, also referred to as air-powered or compressed air vehicles, represent a cutting-edge mode of transportation.","PeriodicalId":315818,"journal":{"name":"International Journal of Applied and Structural Mechanics","volume":"64 23","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141651874","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 presents results of experiment conducted in order to analysis of surface roughness of steel by considering variables cutting parameters for turning. Surface roughness measurement is a critical aspect of quality control in manufacturing processes, particularly in the context of lathe and milling machine operations. This abstract provides an overview of the methods, tools, and significance of surface roughness measurement in turning processes. It explores the key techniques, such as stylus profilometry and optical interferometry that are commonly employed for assessing surface roughness. The abstract also highlights the importance of surface roughness measurement in ensuring product quality, functionality, and performance. Furthermore, it emphasizes the relevance of this research in optimizing machining processes, enhancing product aesthetics, and reducing material waste. This investigation contributes to the field of precision manufacturing by presenting an in-depth analysis of surface roughness measurement in lathe machine applications, offering valuable insights for industry professionals and researchers alike.
{"title":"Experimental Analysis of Surface Roughness of Steel by Considering Variable Cutting Parameters for Turning","authors":"Rajkumar Bharti, Ayan Banerjee, Rajnish Kumar Ranjan, Manoj Kundu","doi":"10.55529/ijasm.42.8.17","DOIUrl":"https://doi.org/10.55529/ijasm.42.8.17","url":null,"abstract":"This paper presents results of experiment conducted in order to analysis of surface roughness of steel by considering variables cutting parameters for turning. Surface roughness measurement is a critical aspect of quality control in manufacturing processes, particularly in the context of lathe and milling machine operations. This abstract provides an overview of the methods, tools, and significance of surface roughness measurement in turning processes. It explores the key techniques, such as stylus profilometry and optical interferometry that are commonly employed for assessing surface roughness. The abstract also highlights the importance of surface roughness measurement in ensuring product quality, functionality, and performance. Furthermore, it emphasizes the relevance of this research in optimizing machining processes, enhancing product aesthetics, and reducing material waste. This investigation contributes to the field of precision manufacturing by presenting an in-depth analysis of surface roughness measurement in lathe machine applications, offering valuable insights for industry professionals and researchers alike.","PeriodicalId":315818,"journal":{"name":"International Journal of Applied and Structural Mechanics","volume":"30 25","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140081421","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}
Peter Damoah- Afari, Jeff Dacosta Osei, Richmond Gyesaw, Kelvin Adu- Bonsu, Raphael Kwakye Amaning
Dormaa Ahenkro town ship has been in existence for many centuries and that, there are different kinds of buildings in the city. With regard to the ages of the buildings which is very important for authorities to track the history of some buildings for safety and economic resources. This study navigates the intersection of geospatial technology and urban development. Leveraging QGIS 3.16 and Google Earth pro, a meticulous analysis of 243 buildings in Dormaa Ahenkro unveils a nuanced understanding of their temporal and functional dynamics. The digitization process reveals 220 old and 23 new structures, forming the foundation for an exploration of the architectural evolution of the city. Temporal insights, spanning from the year 1820 to 2023, illuminate the historical narrative of Dormaa Ahenkro, while an SQL (Structured Query Language) was used to categorize buildings based on their conditions and purposes. Clusters of buildings, as depicted spatially, not only signified temporal patterns but also conveyed functional diversity, with some structures serving dual purposes-commercial and residential. The SQL used to query data from the geodatabase in GIS highlighted the urgency of addressing aging structures, identifying 133 buildings in need of maintenance and emphasizing the historical significance of the oldest building at 193 years. The study recommends targeted preservation initiatives for historical buildings, balanced urban planning strategies, routine maintenance programs, resilient design regulations, and community engagement initiatives. These recommendations provide a strategic framework for Dormaa Ahenkro to preserve its heritage, foster sustainable growth, and fortify resilience against evolving urban challenges. The integration of geospatial insights and strategic cartography emerges as a powerful tool for informed decision-making in shaping a resilient and sustainable urban future for Dormaa Ahenkro, Ghana.
{"title":"Strategic Cartography: Geospatial Insights into Building age Dynamics for Sustainable Urban Resilience in Dormaa Ahenkro, Ghana","authors":"Peter Damoah- Afari, Jeff Dacosta Osei, Richmond Gyesaw, Kelvin Adu- Bonsu, Raphael Kwakye Amaning","doi":"10.55529/ijasm.36.1.13","DOIUrl":"https://doi.org/10.55529/ijasm.36.1.13","url":null,"abstract":"Dormaa Ahenkro town ship has been in existence for many centuries and that, there are different kinds of buildings in the city. With regard to the ages of the buildings which is very important for authorities to track the history of some buildings for safety and economic resources. This study navigates the intersection of geospatial technology and urban development. Leveraging QGIS 3.16 and Google Earth pro, a meticulous analysis of 243 buildings in Dormaa Ahenkro unveils a nuanced understanding of their temporal and functional dynamics. The digitization process reveals 220 old and 23 new structures, forming the foundation for an exploration of the architectural evolution of the city. Temporal insights, spanning from the year 1820 to 2023, illuminate the historical narrative of Dormaa Ahenkro, while an SQL (Structured Query Language) was used to categorize buildings based on their conditions and purposes. Clusters of buildings, as depicted spatially, not only signified temporal patterns but also conveyed functional diversity, with some structures serving dual purposes-commercial and residential. The SQL used to query data from the geodatabase in GIS highlighted the urgency of addressing aging structures, identifying 133 buildings in need of maintenance and emphasizing the historical significance of the oldest building at 193 years. The study recommends targeted preservation initiatives for historical buildings, balanced urban planning strategies, routine maintenance programs, resilient design regulations, and community engagement initiatives. These recommendations provide a strategic framework for Dormaa Ahenkro to preserve its heritage, foster sustainable growth, and fortify resilience against evolving urban challenges. The integration of geospatial insights and strategic cartography emerges as a powerful tool for informed decision-making in shaping a resilient and sustainable urban future for Dormaa Ahenkro, Ghana.","PeriodicalId":315818,"journal":{"name":"International Journal of Applied and Structural Mechanics","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139320897","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}
Orvin A. Lobitos, Anna Jane S. Cagang, Retsairine O. Blanco, John Alexander C. Hernandez
The construction industry has witnessed significant advancements in recent years, particularly in the area of planning and project management. Efficient and effective planning plays a vital role in the successful completion of construction projects, ensuring timely delivery, cost-effectiveness, and quality. One prominent planning model that has gained attention is Demski's Model, which aims to optimize the house construction planning process by incorporating various factors and variables. This research paper presents an in-depth assessment of Demski's Model in the context of house construction planning. The objective is to evaluate the model's effectiveness, its applicability in realworld scenarios, and the potential benefits it offers to the construction industry. The assessment process involves a comprehensive literature review, analyzing existing studies, scholarly articles, and relevant industry reports. The gathered information provides a foundation for understanding the fundamental principles and components of Demski's Model. The research methodology consists of both quantitative and qualitative analysis. Quantitative analysis involves examining key performance indicators such as project duration, cost, and resource allocation, comparing projects that utilized Demski's Model with those that followed traditional planning approaches. Qualitative analysis focuses on gathering feedback from project stakeholders, including contractors, homebuilders, and house owners, to gauge their experiences and perceptions regarding the model's effectiveness and practicality. The findings of this research contribute to the existing knowledge base on house construction planning methodologies. The assessment of Demski's Model provides insights into its strengths, weaknesses, and potential areas for improvement. It also sheds light on the challenges and limitations that may arise during its implementation. By understanding these factors, construction professionals can make informed decisions when considering the adoption of Demski's Model in their planning processes. Ultimately, this research aims to provide a comprehensive assessment of Demski's Model in house construction planning, offering valuable insights for researchers, practitioners, and decision-makers in the construction industry. By evaluating the model's effectiveness and practicality, this study contributes to advancing planning methodologies and optimizing construction project outcomes in the pursuit of enhanced efficiency, reduced costs, and improved quality.
{"title":"Assessment of Demski’s Model in House Construction Planning","authors":"Orvin A. Lobitos, Anna Jane S. Cagang, Retsairine O. Blanco, John Alexander C. Hernandez","doi":"10.55529/ijasm.35.10.21","DOIUrl":"https://doi.org/10.55529/ijasm.35.10.21","url":null,"abstract":"The construction industry has witnessed significant advancements in recent years, particularly in the area of planning and project management. Efficient and effective planning plays a vital role in the successful completion of construction projects, ensuring timely delivery, cost-effectiveness, and quality. One prominent planning model that has gained attention is Demski's Model, which aims to optimize the house construction planning process by incorporating various factors and variables. This research paper presents an in-depth assessment of Demski's Model in the context of house construction planning. The objective is to evaluate the model's effectiveness, its applicability in realworld scenarios, and the potential benefits it offers to the construction industry. The assessment process involves a comprehensive literature review, analyzing existing studies, scholarly articles, and relevant industry reports. The gathered information provides a foundation for understanding the fundamental principles and components of Demski's Model. The research methodology consists of both quantitative and qualitative analysis. Quantitative analysis involves examining key performance indicators such as project duration, cost, and resource allocation, comparing projects that utilized Demski's Model with those that followed traditional planning approaches. Qualitative analysis focuses on gathering feedback from project stakeholders, including contractors, homebuilders, and house owners, to gauge their experiences and perceptions regarding the model's effectiveness and practicality. The findings of this research contribute to the existing knowledge base on house construction planning methodologies. The assessment of Demski's Model provides insights into its strengths, weaknesses, and potential areas for improvement. It also sheds light on the challenges and limitations that may arise during its implementation. By understanding these factors, construction professionals can make informed decisions when considering the adoption of Demski's Model in their planning processes. Ultimately, this research aims to provide a comprehensive assessment of Demski's Model in house construction planning, offering valuable insights for researchers, practitioners, and decision-makers in the construction industry. By evaluating the model's effectiveness and practicality, this study contributes to advancing planning methodologies and optimizing construction project outcomes in the pursuit of enhanced efficiency, reduced costs, and improved quality.","PeriodicalId":315818,"journal":{"name":"International Journal of Applied and Structural Mechanics","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135787438","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 construction sector exerts detrimental environmental impacts on natural ecosystems. Mitigating these impacts and reducing pollution necessitates the adoption of an assessment tool. During the design phase, decisions must factor in building typology, materials, construction techniques, dimensions, functions, and contextual considerations. Crafting solutions that effectively address all these facets presents a formidable challenge. The European Union (EU) advocates for employing the Life Cycle Assessment (LCA) methodology to evaluate environmental impacts in the construction industry. This approach encompasses the entire lifecycle of a product, encompassing production, usage, and disposal stages. However, integrating additional elements such as the urban context and digital twin technologies remains intricate. Given the impending need to enhance energy efficiency in the European building stock through extensive redevelopment, this research aims to identify a robust methodology for selecting optimal building materials. This review seeks to offer an updated perspective encompassing the choice of eco-friendly building materials and the incorporation of digital twin technologies, which facilitate real-time building assessments. By amalgamating insights derived from this analysis, this research strives to contribute to a holistic framework that addresses the multifaceted aspects of sustainable construction. Such a framework would streamline the selection of environmentally conscious building materials while harnessing the potential of digital twin methodologies for rapid and precise building evaluations. Ultimately, this research aspires to bridge critical gaps in sustainable practices within the construction sector, aligning with the EU's overarching objectives of promoting greener and more efficient built environments.
{"title":"Bibliometric Review of Building Material Assessment for Energy Efficiency in Urban Digital Twins","authors":"Angelica Rocco","doi":"10.55529/ijasm.35.22.32","DOIUrl":"https://doi.org/10.55529/ijasm.35.22.32","url":null,"abstract":"The construction sector exerts detrimental environmental impacts on natural ecosystems. Mitigating these impacts and reducing pollution necessitates the adoption of an assessment tool. During the design phase, decisions must factor in building typology, materials, construction techniques, dimensions, functions, and contextual considerations. Crafting solutions that effectively address all these facets presents a formidable challenge. The European Union (EU) advocates for employing the Life Cycle Assessment (LCA) methodology to evaluate environmental impacts in the construction industry. This approach encompasses the entire lifecycle of a product, encompassing production, usage, and disposal stages. However, integrating additional elements such as the urban context and digital twin technologies remains intricate. Given the impending need to enhance energy efficiency in the European building stock through extensive redevelopment, this research aims to identify a robust methodology for selecting optimal building materials. This review seeks to offer an updated perspective encompassing the choice of eco-friendly building materials and the incorporation of digital twin technologies, which facilitate real-time building assessments. By amalgamating insights derived from this analysis, this research strives to contribute to a holistic framework that addresses the multifaceted aspects of sustainable construction. Such a framework would streamline the selection of environmentally conscious building materials while harnessing the potential of digital twin methodologies for rapid and precise building evaluations. Ultimately, this research aspires to bridge critical gaps in sustainable practices within the construction sector, aligning with the EU's overarching objectives of promoting greener and more efficient built environments.","PeriodicalId":315818,"journal":{"name":"International Journal of Applied and Structural Mechanics","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135787437","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}
Md. Shafikul Islam Shawan, Md. Abdullah Kawser, Md. Saidur Rahman, Md. Alomgir Kabir, Rubab Ahmmed
This article proposes a miniaturized defective ground structure (DGS)-based microstrip patch that is suitable for usage in a variety of applications, including those in the medical, scientific, and industrial fields. The dimension of a conventional patch antenna at 2.7 GHz on an FR4 substrate consists of 11.01×5.19×0.1575 cm3, where the proposed antenna geometry is set as 5.89×3.06×0.1575 cm3, reducing the overall circuit size by 68.9%. This miniaturized antenna will be easily implementable in wearable devices for healthcare applications. The dimension and shape of the DGS are optimized in such a way as to improve the return loss from -19 dB to -24 dB at the desired frequency. Finally, the transmission coefficient for a conventional and suggested DGS-based antenna has been examined while these antennas are placed in a near-field region.
{"title":"Miniaturized Micro Strip Patch Antenna to Achieve Wireless Power Transfer for ISM Applications","authors":"Md. Shafikul Islam Shawan, Md. Abdullah Kawser, Md. Saidur Rahman, Md. Alomgir Kabir, Rubab Ahmmed","doi":"10.55529/ijasm.35.1.9","DOIUrl":"https://doi.org/10.55529/ijasm.35.1.9","url":null,"abstract":"This article proposes a miniaturized defective ground structure (DGS)-based microstrip patch that is suitable for usage in a variety of applications, including those in the medical, scientific, and industrial fields. The dimension of a conventional patch antenna at 2.7 GHz on an FR4 substrate consists of 11.01×5.19×0.1575 cm3, where the proposed antenna geometry is set as 5.89×3.06×0.1575 cm3, reducing the overall circuit size by 68.9%. This miniaturized antenna will be easily implementable in wearable devices for healthcare applications. The dimension and shape of the DGS are optimized in such a way as to improve the return loss from -19 dB to -24 dB at the desired frequency. Finally, the transmission coefficient for a conventional and suggested DGS-based antenna has been examined while these antennas are placed in a near-field region.","PeriodicalId":315818,"journal":{"name":"International Journal of Applied and Structural Mechanics","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135999473","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}
Due to inadequate post-harvest storage facilities, post-harvest losses of horticultural crops (fruits, vegetables, and flowers) are quite high in Ethiopia. The loss has a detrimental effect on societal welfare, economic growth, and food security. A prototype of an evaporative cooling system was designed, built, and evaluated for its efficacy in the short-term storage of tomatoes in order to overcome these issues and decrease the perishability of the most economically viable crops. Technical advancements and reorganizations were made to the evaporative cooling system's architecture to make maintenance, operation, and handling easier. The design combines an indirect and direct evaporative cooling system to store horticulture products in a variety of locations with different environmental conditions. The cooler is portable and can hold 260 kg, which is the ideal amount of food for Ethiopia's majority of small-scale horticulture distributors. Temperatures dropped 9.6°C and 10.3°C, respectively, at a cabinet relative humidity of 85%, compared to traditional cooling systems. Tomatoes were the subject of a storage trial to compare its efficacy to the conventional method of merchant display in the open market for six days. The cooler used half as much energy as a normal vapour compression refrigerator with roughly the same amount of storage. It is found that integrated evaporative cooling systems may perform better in the majority of climatic situations.
{"title":"Design, Fabrication and Evaluation of Evaporative Cooling System for the Storage of Fruits and Vegetables","authors":"Kumlachew Yenenh","doi":"10.55529/ijasm.34.9.22","DOIUrl":"https://doi.org/10.55529/ijasm.34.9.22","url":null,"abstract":"Due to inadequate post-harvest storage facilities, post-harvest losses of horticultural crops (fruits, vegetables, and flowers) are quite high in Ethiopia. The loss has a detrimental effect on societal welfare, economic growth, and food security. A prototype of an evaporative cooling system was designed, built, and evaluated for its efficacy in the short-term storage of tomatoes in order to overcome these issues and decrease the perishability of the most economically viable crops. Technical advancements and reorganizations were made to the evaporative cooling system's architecture to make maintenance, operation, and handling easier. The design combines an indirect and direct evaporative cooling system to store horticulture products in a variety of locations with different environmental conditions. The cooler is portable and can hold 260 kg, which is the ideal amount of food for Ethiopia's majority of small-scale horticulture distributors. Temperatures dropped 9.6°C and 10.3°C, respectively, at a cabinet relative humidity of 85%, compared to traditional cooling systems. Tomatoes were the subject of a storage trial to compare its efficacy to the conventional method of merchant display in the open market for six days. The cooler used half as much energy as a normal vapour compression refrigerator with roughly the same amount of storage. It is found that integrated evaporative cooling systems may perform better in the majority of climatic situations.","PeriodicalId":315818,"journal":{"name":"International Journal of Applied and Structural Mechanics","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128517611","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 extended finite element method (X-FEM) has been used to solve fracture mechanics, problems in materials with various behavior laws (for example, isotropic, orthotropic or piezoelectric materials... For each type of material, it is necessary to obtain “enrichment functions” which model the behavior of the fields of displacement and stresses in the vicinity of the front of crack. In this paper, fatigue crack propagation analysis was modeled, by the extended finite element method X-FEM to evaluate the total energy and strain energy at the angled crack length, and to have the development of the increment time concerning the different values of α which is equal to 15°, 30° and 45, this development has been studied numerically by solving the problem of finite elements by the computer code ABAQUS. Quadratic 4-node elements (CPS4R) were used.
{"title":"Fatigue Analysis of an Inclined Crack Propagation Problem by the X-FEM Method","authors":"M. Bentahar","doi":"10.55529/ijasm.34.23.31","DOIUrl":"https://doi.org/10.55529/ijasm.34.23.31","url":null,"abstract":"The extended finite element method (X-FEM) has been used to solve fracture mechanics, problems in materials with various behavior laws (for example, isotropic, orthotropic or piezoelectric materials... For each type of material, it is necessary to obtain “enrichment functions” which model the behavior of the fields of displacement and stresses in the vicinity of the front of crack. In this paper, fatigue crack propagation analysis was modeled, by the extended finite element method X-FEM to evaluate the total energy and strain energy at the angled crack length, and to have the development of the increment time concerning the different values of α which is equal to 15°, 30° and 45, this development has been studied numerically by solving the problem of finite elements by the computer code ABAQUS. Quadratic 4-node elements (CPS4R) were used.","PeriodicalId":315818,"journal":{"name":"International Journal of Applied and Structural Mechanics","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132354978","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}
Nano sized Al2O3 and Cu doped Al2O3 nano-sized particles have been synthesized by using microwave assisted chemical co-precipitation method. The structural, morphological and optical band gap energy of the calcined samples have been examined by using X-ray diffraction techniques, FESEM, HR-TEM and UV-Vis absorption respectively. The insertion of Cu2+ ions into Al2O3 NPs gave significant alteration in structural and morphological properties. The Crystalline sizes of Cu-doped Al2O3 were calculated by Debye Scherrer formula and it is approximately 21 nm. The UV absorption study shows strong absorption peak around 250 nm. The FTIR spectroscopy of calcined samples were at 530 cm-1 and at 512 cm-1 proving Cu2+ion in Al2O3 lattice . The FESEM images confirmed that the samples are nanosized and more or less truncated hexagonal in shape.
{"title":"Investigate the Change in Structural and Optical Properties with Dopant Concentration of CUO in Alumina Nanostructured Materials","authors":"Ritu ., S. Dwivedi, R. Sharma","doi":"10.55529/ijasm.34.1.8","DOIUrl":"https://doi.org/10.55529/ijasm.34.1.8","url":null,"abstract":"Nano sized Al2O3 and Cu doped Al2O3 nano-sized particles have been synthesized by using microwave assisted chemical co-precipitation method. The structural, morphological and optical band gap energy of the calcined samples have been examined by using X-ray diffraction techniques, FESEM, HR-TEM and UV-Vis absorption respectively. The insertion of Cu2+ ions into Al2O3 NPs gave significant alteration in structural and morphological properties. The Crystalline sizes of Cu-doped Al2O3 were calculated by Debye Scherrer formula and it is approximately 21 nm. The UV absorption study shows strong absorption peak around 250 nm. The FTIR spectroscopy of calcined samples were at 530 cm-1 and at 512 cm-1 proving Cu2+ion in Al2O3 lattice . The FESEM images confirmed that the samples are nanosized and more or less truncated hexagonal in shape.","PeriodicalId":315818,"journal":{"name":"International Journal of Applied and Structural Mechanics","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127943731","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}
Marwa Mohsen Mohamed Al-Barakat, Dr Hussein Karim Hamad Al-Saadi
The study of the amount of sediments in rivers is of very great importance, which has to do with the amount of water drainage and the force of water flow, whether it is sediment in the form of a suspended or bottom load, due to its direct impact on agricultural, navigational and engineering projects, as it is one of the most important factors causing the change of riverbeds , and affect the reduction of the capacity of the irrigation and storage channels, and it has been shown through the research that there is a spatial and temporal variation in the volume of sediments, as the suspended and bottom load increases before the Kut dam in the Saray station in Baghdad, and then the amount of sediment decreases in the back station of the Kut dam, the Al-Gharaf station, and the Nazem Dujailah and that is. Because the amount of sediment is related to the volume of water drainage.
{"title":"Al-Kut Dam and its Effect on the Sedimentation Rate of the Dijla Al Gharaf and Dujaila Rivers in Wasit Governorate","authors":"Marwa Mohsen Mohamed Al-Barakat, Dr Hussein Karim Hamad Al-Saadi","doi":"10.55529/ijasm.32.10.22","DOIUrl":"https://doi.org/10.55529/ijasm.32.10.22","url":null,"abstract":"The study of the amount of sediments in rivers is of very great importance, which has to do with the amount of water drainage and the force of water flow, whether it is sediment in the form of a suspended or bottom load, due to its direct impact on agricultural, navigational and engineering projects, as it is one of the most important factors causing the change of riverbeds , and affect the reduction of the capacity of the irrigation and storage channels, and it has been shown through the research that there is a spatial and temporal variation in the volume of sediments, as the suspended and bottom load increases before the Kut dam in the Saray station in Baghdad, and then the amount of sediment decreases in the back station of the Kut dam, the Al-Gharaf station, and the Nazem Dujailah and that is. Because the amount of sediment is related to the volume of water drainage.","PeriodicalId":315818,"journal":{"name":"International Journal of Applied and Structural Mechanics","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132198060","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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