检索结果-内蒙古大学图书馆

Investigation of structural and thermal analysis of clutch facings with different friction materials

Materials Today: Proceedings 2023年 92卷 98-105页

作者： Padmanabhan S. Vinod Kumar T. Sendil Kumar D. Velmurugan G. Akshay Kumar B. Hitesh Sri Subramanyam K. Department of Automobile Engineering Vel Tech Rangarajan Dr Sagunthala R&D Institute of Science and Technology Chennai India Department of Mechanical Engineering Vels Institute of Science Technology and Advanced Studies (VISTAS) Chennai India Director Senthil College of Education Puducherry India

Almost every part of an automobile has been upgraded due to technological progress over the previous century. The automobile industry is a significant contributor to environmental degradation. Automobile engineers have a responsibility to develop innovative approaches to safety and environmental protection. The importance of determining the influence of stress and heat wear on transmitted torque has grown as interest in studying clutches has grown. Composite materials that are safer for the environment make it easier for vehicle developers to provide greater alternatives. This article investigates the potential for replacing conventional clutch facing materials with composites and other suitable materials like sintered metal, Kevlar, and hard steel. Clutch facings composed of base material have been modelled and analysed in Solid Works and ANSYS Workbench, respectively, to achieve this goal. The mechanical characteristics of clutch facings made of three materials have been compared. © 2023

关键词： Analysis Clutch liner Hard steel Kevlar Sintered metal

来源：评论

学校读者我要写书评

暂无评论

Experimental investigation based on MCDM optimization of electrical discharge machined Al-WC–B4C hybrid composite using Taguchi-MARCOS method

引用

Materials Today: Proceedings 2023年 74卷 587-594页

作者： Biswal, Smrutiranjan Sahoo, Bibhuti Bhusan Jeet, Siddharth Barua, Abhishek Kumari, Kanchan Naik, Bibekananda Pradhan, Swastik Odisha Bhubaneswar India Department of Mechanical Engineering Centre for Advanced Post Graduate Studies BPUT Odisha Rourkela India Department of Mechanical Engineering Parala Maharaja Engineering College Odisha Berhampur India Department of Advanced Materials Technology CSIR-Institute of Minerals and Materials Technology Odisha Bhubaneswar India Academy of Scientific and Innovative Research CSIR-HRD Centre Campus Uttar Pradesh Ghaziabad India School of Mechanical Engineering Lovely Professional University Punjab Phagwara India

Electrical discharge machining is a recognised non-traditional machining practise capable of accurately engineering components with multi-faceted contours. Through the stir casting process, two different aluminium alloys (Al 7175 and Al 6061)-based hybrid nanocomposites were developed and strengthened with tungsten carbide (WC) at 10 % and boron carbide (B4C) at 10 % in the current study. After mechanical characterization of the composites, electrical discharge machining (EDM) has been piloted on specimens to scrutinise the machining parameters. Taguchi's design of the L9 orthogonal array was implemented to conduct experiments with the help of three EDM parameters such as voltage applied, current applied, and pulse-on time to find out their effects on machining time taken, surface roughness, along with the material removal rate. Optimization has been carried out using MARCOS technique (Measurement Alternatives and Ranking according to Compromise Solution), and optimal results have been confirmed through confirmatory tests. It is found that voltage and current are the most noteworthy factors in EDM machining of the Aluminium alloy composite. Also, it was found that the tensile along with ultimate tensile strength of Al6061-WC-B4C and Al7175-WC-B4C composites were found to be 17.810KN, 86.30KN, and 51.746 N/mm2, 271.520 N/mm2 respectively. © 2022

关键词： Tungsten carbide

来源：评论

学校读者我要写书评

暂无评论

Reverse application of the Andrews protocol for assessing risks in a hypothetical nuclear accident

引用

Nuclear engineering and Design 2025年 441卷

作者： Angelica C. Nogueira Hugo F. Menossi Rafael M. Hespanhol Andre C. Tavares Rodrigo C. Curzio Tercio Brum Edson R. Andrade Nuclear Engineering Graduate Program Military Institute of Engineering (IME) Rio de Janeiro Brazil Universidade do Oeste Paulista (UNOESTE) São Paulo Brazil Engineering Department Charleston Southern University North Charleston SC USA Herschend School of Education Gordon College Wenham MA USA Defense Engineering Graduate Program Military Institute of Engineering (IME) Rio de Janeiro Brazil University of Brasilia (UnB) Faculty of Science and Technology in Engineering Gama Distrito Federal Brazil Institute of Advanced Studies (IEAv) Brazilian Air Force São Paulo Brazil

This study introduces a novel approach to assessing radiobiological damage by employing an inverted version of the classical Andrews protocol (or Andrews nomogram) within the context of nuclear accidents. The methodology consists of two stages of computational simulation: The first stage simulates the release of radioactive materials from a pressurized water reactor (PWR), concentrating on scenarios of operational instability. In contrast, the second stage utilizes HotSpot Health Physics software to model the environmental dispersion of these materials. By estimating Total Effective Dose Equivalents (TEDE) at various locations and under different atmospheric stability conditions, we reverse the traditional sequence of the Andrews nomogram, which typically estimates lymphocyte counts based on radiation dose exposure. This innovative framework facilitates the development of a TEDE versus a Count curve, thereby enhancing the ability to anticipate the health implications following radiological incidents. The results highlight the importance of accurate modeling in predicting biological effects on populations exposed to radioactive releases and provide a tool to support responses and help design coping strategies enhancing the situational awareness of healthcare teams in nuclear emergencies.

关键词：

来源：评论

学校读者我要写书评

暂无评论

A high-throughput strategy for rapid synthesis and characterization of Ni-based superalloys

引用

Rare Metals 2022年第8期41卷 2693-2700页

作者： Lei Zhao Su-Ran Liu Liang Jiang Li-Xia Yang Li-Long Zhu Hui Wang Wen-Yu Zhang Zai-Wang Huang Yuan-Bin Deng Christoph Broeckmann Hai-Liang Huang Hai-Zhou Wang Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory of Metal Materials CharacterizationCentral Iron and Steel Research InstituteBeijing100081China National Center for Materials Service Safety University of Science and Technology BeijingBeijing100083China Institute for Advanced Studies in Precision Materials Yantai UniversityYantai264005China State Key Laboratory of Powder Metallurgy Central South UniversityChangsha410083China Institute for Materials Applications in Mechanical Engineering RWTH Aachen UniversityAachen52062Germany

This study developed a new high-throughput strategy,designated as hot-isostatic-pres sing-based microsynthesis approach(HIP-MSA),to optimize high-performance nickel-based superalloys in a rapid,efficient,and cost-effective manner.A specific honeycomb-array structure containing 106 discrete cells was designed and optimized using finite element analysis(FEA)and then applied to create a combinatorial library consisting of 106 Ni-based superalloys with various Co,Nb and Ta *** integration with high-throughput characterization tools,extensive composition and phase structure data were collected quickly and *** the superalloys with higher amounts of Nb and Ta,the detrimentalηphase displaying needle-like morphology was observed,and its content(wt%)increased drastically with Ta and Nb contents ***,the increase of Co addition in those alloys was confirmed to be surprisingly beneficial by significantly suppressing the formation ofηphase that was induced by high Nb and Ta *** zero-phasefraction(ZPF)line ofηphase was established,which is critical to design superalloy chemistry for superior micros tructural stability at high-temperature service conditions.

关键词： Bulk combinatorial synthesis Honeycombarray structure Finite element analysis(FEA) Superalloy Zero-phase-fraction(ZPF)line

来源：评论

学校读者我要写书评

暂无评论

Integrating Blockchain and Artificial Intelligence for Industry 4.0 Innovations 1

引用

丛书名： EAI/Springer Innovations in Communication and Computing

1000年

作者： Sam Goundar R. Anandan

ISBN: (数字)9783031357510

ISBN: (纸本)9783031357503;9783031357534

This book discusses the convergence of artificial intelligence (AI) and Blockchain and how they can work together to help reach the goals of Industry 4.0. The authors first discuss how AI and Blockchain can help increase performance in business. The authors go on to discuss how the technologies can integrate to provide a competitive edge for businesses through improvements in big data, which has allowed firms to organize huge datasets into structured components that computers can process quickly. The authors also cover security implications and how AI and Blockchain can act as a double-edged sword against cyber-attacks. Impacts in programming, calculations, robotization, robots, and equipment are also discussed. This book caters to an extensive cross-sectional and multi-disciplinary readership. Academics, researchers and their students in topics such as artificial intelligence, cyber-physical systems, ethics, robotics, safety engineering, and safety-critical systems should find the book of value.

关键词： Communications engineering, Networks Cyber-physical systems, IoT Artificial Intelligence

来源：评论

学校读者我要写书评

暂无评论

In-plane stiffness tailoring for the improvement of buckling and strength of composite panels with cut-outs

In-plane stiffness tailoring for the improvement of buckling...

引用

12th European Conference on Spacecraft Structures, Materials and Environmental Testing

作者： Lopes, C.S. Gürdal, Z. Camanho, P.P. Gomes, V.S. IMDEA Materials Institute for Advanced Studies of Materials Madrid Spain Faculty of Aerospace Engineering Delft University of Technology Netherlands DEMec Faculty of Engineering University of Porto Portugal INEGI Institute of Mechanical Engineering and Industrial Management Portugal

ISBN: (纸本)9789290922551

The traditional engineering approach to the problem of stress concentrations around large cutouts in composite aerospace structures, e.g. for windows and doors in aircraft, is to locally increase the thickness in order to lower the stress peaks. Often, this practice results in a significant increase in the weight of the structure. A more effective solution, avoiding the mass increase, is to dissipate the stress concentrations by redistributing loads to supported regions, such as frames and stiffeners, by means of fibre-steered laminates with variable in-plane stiffness. The production of composites in this format is practical nowadays due to the capabilities of advanced fibre-placement technology. In this work, the potential of the fibre-steering concept for the purpose of stress alleviation around cutouts in composite laminates is explored. Numerical studies are performed on compression and shear loaded variable-stiffness panels of different configurations and hole-to-panel size ratios in order to identify the optimal configurations in terms of buckling and first-ply failure.

关键词： Buckling

来源：评论

学校读者我要写书评

暂无评论

Secured Normalized Tagged Response for Patient Critical Care Monitoring System: A Unified approach

Secured Normalized Tagged Response for Patient Critical Care...

引用

2023 International Conference on Advances in Computation, Communication and Information technology, ICAICCIT 2023

作者： Sivakumar, Soubraylu Vinay, B. Sai Arulmurugan, A. Prakash, U.M. Kumar, T. Rajesh Sridevi, S. Srm Institute of Science and Technology Computer Technologies School of Computing Chennai Kattankulathur India Saveetha Institute of Medical and Technical Sciences Computer Science and Engineering Saveetha School of Engineering Chennai India Vels Institute of Science Technology and Advanced Studies Computer Science and Engineering Chennai India

ISBN: (纸本)9798350344387

In the rapidly advancing realm of healthcare, ensuring the well-being of critical care patients stands as a paramount mission. Various cutting-edge sensors are available in the market, proficient in monitoring vital health. A substantial number of healthcare facilities still rely on manual processes, a practice that is not only repetitive and labor-intensive but also fraught with the potential for human errors. This pressing need for immediate, accurate responses in the context of critical care has driven the development of a comprehensive solution. Our proposed system brings together security, data normalization, and efficient data exchange, underpinned by a unified approach. Security, a cornerstone of healthcare, finds its realization in the implementation of JSON Web Tokens (JWT). This technology ensures the privacy and integrity of communication between healthcare entities. Crucial patient data, including personal particulars, lifeline parameters, and historical records, is securely housed in a scalable and non-redundant Postgres SQL database. In emergencies, time is of the essence. To expedite responses, an innovative tagged QR code technique is introduced. The unified approach doesn't simply prioritize security;it underscores the significance of data standardization and efficient data exchange. A robust security framework has been meticulously designed to protect sensitive patient information, minimize the risk of data breaches, and prevent unauthorized access. Furthermore, data normalization ensures that patient data is consistently structured and formatted, facilitating compatibility with diverse healthcare platforms and devices. The normalization additionally enhances interoperability, enabling seamless information exchange between different systems and healthcare providers. In summary, our unified approach, marked by state-of-the-art security, data normalization, and efficient data tagging, sets a new standard for patient care in critical settings, ensurin

关键词： Critical Care Emergency Health Care JSON Web Token Patient monitoring Postgres SQL QR Code

来源：评论

学校读者我要写书评

暂无评论

Software Development Framework for Cardiac Disease Prediction Using Machine Learning Applications

Software Development Framework for Cardiac Disease Predictio...

引用

2022 IEEE International Conference on Current Development in engineering and technology, CCET 2022

作者： Kanna, R. Kishore Devi, K. Yamuna Dhivy, A. Josephi Arocki Amutha, Priya. M Diana Gomalavalli, R. Ambikapathy, A. Vels Institute of Science Technology Advanced Studies Department of Biomedical Engineering Chennai India Srm Easwari Engineering College Department of Biomedical Engineering Chennai India Siddharth Institute of Engineering and Technology Department of Electronics and Communication Engineering Andhra Pradesh India Galgotias College of Engineering and Technology Department of Electrical and Electronics Engineering Uttar Pradesh India

ISBN: (纸本)9781665454155

The most difficult task in medicine is making a diagnosis of heart illness. Since the decision is dependent on a huge number of clinical and pathological information, the diagnosis of heart illness is challenging. This is such as resulted in a significant increase in interest among academics and medical professionals in accurate and efficient cardiac disease prediction. Since time is of the essence in cases of heart sickness, getting the appropriate diagnosis quickly is essential. Since heart disease is the leading cause of death globally, early detection of heart disease is crucial. With the proper case of training and testing, machine learning has recently emerged as one of the most advanced, trust worthy, and helpful technologies in the medical industry, offering the most assistance for sickness prediction. The main goal of this endeavor is to examine various heart disease prediction models and choose pertinent heart disease variables using a genetic approach. Genetically optimized prediction models outperform conventional prediction models in terms of performance. Analyzing heart disease using UCI datasets. The Cleveland database is the only one that ML researchers have used thus far. The patient's heart condition is indicated in the 'target' field. It is positioned in the target column and has an integer value between 0 (no presence) and 1 (presence). The goal is the dependent variable, while the other factors are the independent variables. © 2022 IEEE.

关键词： Heart

来源：评论

学校读者我要写书评

暂无评论

Analysis of ergonomic risk factors in construction industry

引用

Materials Today: Proceedings 2021年 37卷 2415-2418页

作者： G.K. Abinaya Ishwarya D. Rajkumar Civil Engineering Vels Institute of Science Technology and Advanced Studies Chennai Tamilnadu India Vels Institute of Science Technology and Advanced Studies Chennai Tamilnadu India

The study on ergonomics makes the engineer or the managing person to arrange the machineries, tools, skilled labours and their environment to be in order and conventional to complete the task in an effective manner. To intensify the success rate by executing Ergonomics, there should be a need for good communication between the managing level and workers level. In the construction field, even though with safety precautions, still workers face stress due to health issues and mental issues. In this paper, the risk factors that govern the gap between top and bottom level in various psychological and administrative factors, analysis of ergonomics measurement in context with questionnaire survey conducted in five construction sites, the remedial measures and challenges in implementing ergonomics were discussed. The proper implementation of ergonomics is ingrained through the flowchart for both administration and workers which has been recommended to the construction field.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Study of mechanical properties on Nano metal matrix Composites: Duralcan process

引用

Materials Today: Proceedings 2022年 62卷 1282-1287页

作者： Balajikrishnabharathi, A. Suyamburajan, Vijayananth Kaliappan, S. Patil, Pravin P Jayabalakrishnan, D. Sathya Prakash, M. Sivabalan, T. Department of Mechanical Engineering R.M.K. College of Engineering and Technology Tamil Nadu Chennai 601206 India Department of Mechanical engineering Vels Institute of Science Technology and Advanced Studies Tamil Nadu Chennai 600117 India Department of Mechanical Engineering Velammal Institute of Technology Tamil Nadu Chennai 601204 India Department of Mechanical Engineering Graphic Era Deemed to be University Uttarakhand 248002 India Department of Mechanical Engineering Chennai Institute of Technology Kundrathur Chennai 600069 India Department of Mechanical engineering Prathyusha Engineering College Tamil Nadu Chennai 602025 India Department of Mechanical Engineering Dr.M.G.R. Educational and Research Institute Maduravoyal Chennai 600095 India

Aluminium metal matrix nanocomposites with aluminium nanoparticles were created using the durolcan process. It is a stir casting process in which metals and ceramics are layered one on top of the other and composites are formed through heating and stirring. The nano Al2O3 was used in the composite in weight percentages of 1,1.5 and 2.5. The hardness and tensile strength of composite properties with and without heat treatment were investigated. According to the results of the tests, increasing the percentage of nanoparticles increases the hardness of the composite materials. © 2022

关键词： Hardness

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：