International Journal of Precision Engineering and Manufacturing-Green Technology最新文献_第9页

Study of PET Fiber Concrete in Beam-Column Joint under Cyclic Loading Using Finite Element Analysis 循环荷载作用下PET纤维混凝土梁柱节点的有限元分析

3区工程技术

International Journal of Precision Engineering and Manufacturing-Green Technology Pub Date : 2023-10-08 DOI: 10.5815/ijem.2023.05.05

Nirav M. Patel, M. N. Patel, Tapsi D. Sata

{"title":"Study of PET Fiber Concrete in Beam-Column Joint under Cyclic Loading Using Finite Element Analysis","authors":"Nirav M. Patel, M. N. Patel, Tapsi D. Sata","doi":"10.5815/ijem.2023.05.05","DOIUrl":"https://doi.org/10.5815/ijem.2023.05.05","url":null,"abstract":"The failure behavior of beam-to-column connections can be minimized or avoided to some extent by using PET waste fibers. With the change of composition, different seismic performances of concrete joints can be adjusted. FEM analysis was performed in ABAQUS software to compare the performance of concrete beam-to-column connections reinforced with conventional concrete fibers and waste PET under cyclic loading. The concrete mix is designed to achieve a concrete grade of M25. Seven figures of the external beam-to-column connections were modeled as a quarter of the architectural prototype. The first joint is conventional concrete and designed according to IS 1893 (Part 1):2022 and the reinforcement in the joint part are specified according to the ductility requirements of IS 13920:2016. Six other samples were designed to contain different PET waste fibers (0.25% to 1.50%) in the seam area. Beam-to-column connections have 0.75% to 1.25% PET fiber inclusions that have better performance in terms of strength, load-carrying capacity, energy dissipation capacity, joint shear strength, and ductility in the joint area. Incorporating PET waste fibers into concrete can provide the best solution for waste management, and also has the potential to reduce the cost of reinforced concrete by 15%-20% holds economic significance, and concrete with PET waste fibers indeed demonstrates better seismic performance, and could lead to increased safety and longevity of structures in seismic-prone areas. This suggests that experimental work or studies might have explored how these fibers affect the concrete's properties, strength, durability, and other characteristics.","PeriodicalId":14238,"journal":{"name":"International Journal of Precision Engineering and Manufacturing-Green Technology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135252756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Automated Model for Sentimental Analysis Using Long Short-Term Memory-based Deep Learning Model 基于长短期记忆的深度学习模型的情感分析自动化模型

3区工程技术

International Journal of Precision Engineering and Manufacturing-Green Technology Pub Date : 2023-10-08 DOI: 10.5815/ijem.2023.05.02

Shashank Mishra, Mukul Aggarwal, Shivam Yadav, Yashika Sharma

引用次数: 0

Design Remote Monitoring System for Patients at Real-Time based on Internet of Things (IoT) 基于物联网的患者实时远程监护系统设计

3区工程技术

International Journal of Precision Engineering and Manufacturing-Green Technology Pub Date : 2023-10-08 DOI: 10.5815/ijem.2023.05.01

Satar Habib Mnaathr

{"title":"Design Remote Monitoring System for Patients at Real-Time based on Internet of Things (IoT)","authors":"Satar Habib Mnaathr","doi":"10.5815/ijem.2023.05.01","DOIUrl":"https://doi.org/10.5815/ijem.2023.05.01","url":null,"abstract":"The remote real-time patient monitoring system is a healthcare solution that uses ESP32 microcontroller and Blynk IoT cloud platform to monitor the vital signs of patients, including temperature, oxygen saturation, and heartbeat. The system also monitors the environmental factors surrounding the patient, such as temperature and humidity, and determines the GPS location of the patient. Additionally, the system includes an alarm device that alerts healthcare providers in case of emergency. In this paper we design system aims to provide continuous care and monitoring for patients, whether they are in hospitals, at home, or outside. By using Blynk IoT cloud platform, the system aims to reduce the percentage of medical errors and deaths by providing real-time monitoring of the patient's vital signs and environmental conditions, allowing healthcare providers to respond to emergencies quickly and efficiently. The IoT-based patient monitoring system consists of sensors that collect data on the patient's vital signs and environmental factors. The collected data is transmitted wirelessly to the Blynk IoT cloud platform, where it is processed and analyzed. Healthcare providers can access the data through the Blynk mobile app and receive alerts in case of any abnormalities or emergencies.","PeriodicalId":14238,"journal":{"name":"International Journal of Precision Engineering and Manufacturing-Green Technology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135252764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Smart Bag for School Students Safety and Security in Oman 为阿曼学生提供安全保障的智能书包

3区工程技术

International Journal of Precision Engineering and Manufacturing-Green Technology Pub Date : 2023-10-08 DOI: 10.5815/ijem.2023.05.03

Najiya Salim Khamis Al Mahrizi, Shaik Mazhar Hussain

引用次数: 0

A Knowledge Graph Based Disassembly Sequence Planning For End-of-Life Power Battery 基于知识图谱的报废动力电池拆卸顺序规划

3区工程技术

International Journal of Precision Engineering and Manufacturing-Green Technology Pub Date : 2023-10-04 DOI: 10.1007/s40684-023-00568-7

Hao Wu, Zhigang Jiang, Shuo Zhu, Hua Zhang

引用次数: 0

A Systematic Review on Extended Reality Applications for Sustainable Manufacturing Across the Product Lifecycle 扩展现实在产品生命周期可持续制造中的应用综述

3区工程技术

International Journal of Precision Engineering and Manufacturing-Green Technology Pub Date : 2023-10-04 DOI: 10.1007/s40684-023-00567-8

Chih-Hsing Chu, Jie-Ke Pan

引用次数: 0

Industrial Energy Optimisation: A Laser Cutting Case Study 工业能源优化:激光切割案例研究

3区工程技术

International Journal of Precision Engineering and Manufacturing-Green Technology Pub Date : 2023-09-28 DOI: 10.1007/s40684-023-00563-y

Nicholas Goffin, Lewis C. R. Jones, John R. Tyrer, Jinglei Ouyang, Paul Mativenga, Lin Li, Elliot Woolley

{"title":"Industrial Energy Optimisation: A Laser Cutting Case Study","authors":"Nicholas Goffin, Lewis C. R. Jones, John R. Tyrer, Jinglei Ouyang, Paul Mativenga, Lin Li, Elliot Woolley","doi":"10.1007/s40684-023-00563-y","DOIUrl":"https://doi.org/10.1007/s40684-023-00563-y","url":null,"abstract":"Abstract In an increasingly technological world, energy efficiency in manufacturing is of great importance. While large manufacturing corporations have the resources to commission energy studies with minimal impact on operations, this is not true for small and medium enterprises (SME’s). These businesses will commonly only have a small number of laser processing cells; thus, to carry out an energy study can be extremely disruptive to normal operations. Since rising global energy costs also have the largest impact on small businesses who lack the benefit of economies of scale, they are simultaneously the most in need of improvements to energy efficiency, while also facing the strongest practical barriers to implementing them. In this study, a laser processing energy analysis methodology was designed to run simultaneously with normal operation and applied to a laser shim-cutting cell in a UK-based SME. This paper demonstrates the methodology for identifying operating states in a production environment and Specific Energy Consumption and Scope 2 CO 2 emissions results are analysed. The Processing state itself was the most impactful on overall energy performance, at 55% for single sheets of material, increasing to 71% when batch processing. Generating idealised data in this production environment is challenging with restrictions to isolating variables, these “real-world” limitations for conducting system energy analysis simultaneously with live production are also discussed to present recommendations for further analysis.","PeriodicalId":14238,"journal":{"name":"International Journal of Precision Engineering and Manufacturing-Green Technology","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135385427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on Strain Energy Transfer and Efficiency in Spatial Micro-forming of Metal 金属空间微成形过程中应变能传递及效率研究

3区工程技术

International Journal of Precision Engineering and Manufacturing-Green Technology Pub Date : 2023-09-28 DOI: 10.1007/s40684-023-00560-1

Zhaojie Chen, Jin Xie, Quanpeng He, Dongsheng Ge, Kuo Lu, Chaolun Feng

引用次数: 0

Performance Analysis of Membrane Electrode Assemblies with Various Compositions Under Non-uniform Large Area Operating Environments of Fuel Cells 燃料电池非均匀大面积工作环境下不同成分膜电极组件的性能分析

3区工程技术

International Journal of Precision Engineering and Manufacturing-Green Technology Pub Date : 2023-09-27 DOI: 10.1007/s40684-023-00553-0

Sungmin Kim, Yunseong Ji, Young-Jun Sohn, Seunghee Woo, Seok-Hee Park, Namgee Jung, Yun Sik Kang, Sung-Dae Yim

引用次数: 0

Dry Grinding by Means of Additively Manufactured Toric Grinding Pins 增材制造环面磨销的干式磨削

3区工程技术

International Journal of Precision Engineering and Manufacturing-Green Technology Pub Date : 2023-09-26 DOI: 10.1007/s40684-023-00548-x

Michael Keitel, Berend Denkena, Benjamin Bergmann

{"title":"Dry Grinding by Means of Additively Manufactured Toric Grinding Pins","authors":"Michael Keitel, Berend Denkena, Benjamin Bergmann","doi":"10.1007/s40684-023-00548-x","DOIUrl":"https://doi.org/10.1007/s40684-023-00548-x","url":null,"abstract":"Abstract The dry grinding process is challenging due to the induced thermal loads into the workpiece, which leads to a reduction of the workpiece quality. One approach to reduce the thermal loads is to adjust the grinding tool geometry by inserting a porous structure for dry grinding. This porous structure can be implemented, for example, by additively manufactured grinding tools. For this purpose, the suitability of additively manufactured vitrified cubic boron nitride grinding tools for dry grinding of tempered AISI M3:2 was investigated and compared with conventionally manufactured grinding tools to investigate the possibility of reducing the high temperatures and to verify the advantage of additively manufactured grinding tools. For this the resulting topographies and residuals stress states as well as wear of the grinding tools were analyzed. Additively manufactured grinding tools generated constant surface roughnesses of below 1 µm as well as contant compressive residual stress states. These results were attributed to a continuous self-sharpening of the grinding tools, which was shown qualitatively and quantitatively on the basis of the tool surfaces. Additively manufactured grinding tools with a porous structure thus have the potential to increase the possibilities of dry grinding.","PeriodicalId":14238,"journal":{"name":"International Journal of Precision Engineering and Manufacturing-Green Technology","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134960150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0