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Enhancing the Performance and Behaviour of M35 Alccofine 1203 Grade Concrete 增强 M35 Alccofine 1203 级混凝土的性能和行为
Pub Date : 2024-07-31 DOI: 10.22214/ijraset.2024.63580
Vipparthi Anitha
Abstract: The construction industry faces pressures to reduce its environmental footprint, prompting the exploration of sustainable materials that maintain or enhance conventional concrete's performance. This study investigates Alccofine 1203, a high-performance micro-fine material, as a partial cement replacement in concrete. The objective is to determine optimal Alccofine percentages for desired mechanical properties and sustainability benefits. We conducted experimental trials with concrete mixes where cement was replaced by Alccofine at increments of 5%, 10%, and 15%. Multiple concrete cubes were prepared and tested for compressive strength, flexural strength, workability, and durability. Fresh properties were evaluated using slump and flow tests, ensuring adequate workability, while long-term performance was assessed through durability tests, including permeability and chloride ion penetration. The results indicate that a 10% replacement of cement with Alccofine 1203 enhances the compressive strength and durability of concrete without compromising workability. Higher percentages showed varied results, necessitating further investigation to optimize the mix design. This study highlights the potential of Alccofine 1203 as a sustainable alternative to traditional cement, offering significant implications for eco-friendly construction practices. This research contributes to the field by providing empirical data on Alccofine 1203's effects in concrete, supporting the development of more sustainable building materials. Future work will focus on refining mix proportions and exploring Alccofine's impact on other concrete properties such as shrinkage and creep.
摘要:建筑行业面临着减少环境足迹的压力,这促使人们探索可保持或提高传统混凝土性能的可持续材料。本研究调查了 Alccofine 1203(一种高性能微细材料)在混凝土中作为部分水泥替代品的情况。目的是确定 Alccofine 的最佳比例,以获得理想的机械性能和可持续发展效益。我们对用 Alccofine 替代水泥的混凝土拌合物进行了试验,试验的增量分别为 5%、10% 和 15%。我们制备了多个混凝土立方体,并对其抗压强度、抗折强度、工作性和耐久性进行了测试。通过坍落度和流动性测试对新拌混凝土的性能进行评估,确保其具有足够的工作性,同时通过耐久性测试(包括渗透性和氯离子渗透性)对其长期性能进行评估。结果表明,用 Alccofine 1203 替代 10%的水泥可提高混凝土的抗压强度和耐久性,同时不影响工作性。百分比越高,结果越不尽相同,因此有必要进一步研究,以优化混合设计。这项研究强调了 Alccofine 1203 作为传统水泥可持续替代品的潜力,对生态友好型建筑实践具有重要意义。这项研究提供了有关 Alccofine 1203 在混凝土中的效果的经验数据,为开发更具可持续性的建筑材料做出了贡献。今后的工作重点将是完善混合比例,探索 Alccofine 对收缩和徐变等其他混凝土性能的影响。
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引用次数: 0
Comparative Study of Heat Transfer and Flow Friction in Plate Heat Exchangers with CarboxyMethyl Cellulose and Sodium Alginate 使用羧甲基纤维素和海藻酸钠的板式热交换器中传热和流动摩擦的比较研究
Pub Date : 2024-07-31 DOI: 10.22214/ijraset.2024.63526
Shubhangi S. Patil, K. Muthamizhi, P. Kalaichelvi
Abstract: Study of Plate heat exchanger (PHE) with power law fluid is a very interesting topic now a days as there is improvement of thermal performance of heat exchanger. Power law fluids show complex flow behavior due to its rheological properties. The parameters which differ these power law fluids from Newtonian fluids are rheological properties like flow behavior index and power law index. Hence flow behavior index and power law index are the two parameters which affect the heat transfer rate. Now to enhance rate of heat transfer we should know how Nusselt number changes with change in flow behavior index and power law index. Hence the aim of present study was to observe how Nusselt number and friction factor changes with change in flow behavior index and power law index. For this purpose thermal performance of PHE have been studied with CorboxyMethyl Cellulose (CMC) and sodium alginate as a cold fluids. Comparison of Nusselt number and friction factor of CMC and sodium alginate have been done. It was observed that Nusselt number for CMC solution was more compared to sodium alginate solution with less friction factor than sodium alginate.
摘要:现在,使用幂律流体的板式热交换器(PHE)研究是一个非常有趣的课题,因为它可以改善热交换器的热性能。幂律流体因其流变特性而表现出复杂的流动行为。幂律流体不同于牛顿流体的参数是流变特性,如流动行为指数和幂律指数。因此,流动指数和幂律指数是影响传热速率的两个参数。现在,为了提高传热速率,我们应该了解努塞尔特数是如何随着流动行为指数和幂律指数的变化而变化的。因此,本研究旨在观察努塞尔特数和摩擦因数如何随流动行为指数和幂律指数的变化而变化。为此,使用羧甲基纤维素(CMC)和海藻酸钠作为冷流体对 PHE 的热性能进行了研究。比较了 CMC 和海藻酸钠的努塞尔特数和摩擦因数。据观察,CMC 溶液的努塞特数高于海藻酸钠溶液,摩擦因数低于海藻酸钠。
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引用次数: 0
Development of Ultra-High-Performance Concrete Using GGBS and Alccofine 使用 GGBS 和 Alccofine 开发超高性能混凝土
Pub Date : 2024-07-31 DOI: 10.22214/ijraset.2024.63704
Prerna Kumari
Abstract: Ultra-high-performance concrete, or UHPC, is a cementitious mixture that is distinguished by its exceptionally high compressive strength—more than 120 MPa as well as its remarkable toughness, tensile ductility, and longevity. Ground Granulated Blast Furnace Slag (GGBS) and Alccofine (AF) are commonly used in the matrix composition to increase the particle system's packing density and subsequently enhance the matrix's strength in order to guarantee that UHPC has the proper strength. To investigate the engineering properties of ternary blended UHPC with GGBS, AF, a comparative study was conducted. In comparison to the control UHPC mix, the ternary blended UHPC mix's mechanical and durability qualities were improved by the percentage variation of AF within specific bounds. In this study, the experimental work included mix proportioning and preparation of ternary blended UHPC specimens and various tests like Compressive Strength, Split Tensile Strength, Flexure Strength and RCPT (Rapid Chloride Penetration Test) were performed in the laboratory. The results show that under normal water curing conditions, the strength qualities of UHPC based on GGBS are considerable, up to a cement replacement level of 40%. In addition, compared to the binary counterpart, the mixture of 20 Percent AF and 40 Percent GGBS showed better mechanical and durability properties.
摘要:超高性能混凝土(UHPC)是一种水泥基混合物,具有极高的抗压强度(超过 120 兆帕)、韧性、拉伸延展性和使用寿命长等特点。基质成分中通常使用磨细高炉矿渣(GGBS)和铝灰(AF)来增加颗粒系统的堆积密度,从而提高基质的强度,以保证 UHPC 具有适当的强度。为了研究含有 GGBS 和 AF 的三元混合 UHPC 的工程特性,我们进行了一项比较研究。与对照 UHPC 混合料相比,三元混合 UHPC 混合料的机械和耐久性能在特定范围内通过 AF 的百分比变化得到改善。在这项研究中,实验工作包括混合配比和三元混合 UHPC 试样的制备,以及在实验室中进行的各种测试,如抗压强度、劈裂拉伸强度、挠曲强度和 RCPT(快速氯化物渗透测试)。结果表明,在正常水固化条件下,基于 GGBS 的超高强度混凝土的强度质量相当可观,最高可达 40% 的水泥替代水平。此外,与二元材料相比,含 20% AF 和 40% GGBS 的混合物具有更好的机械性能和耐久性能。
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引用次数: 0
A Single-Lead Electrocardiogram-Derivative Empirical Mode Decomposition-Based Deep Learning Model for Sleep Apnea Identification 基于深度学习模型的单导联心电图衍生经验模式分解睡眠呼吸暂停识别模型
Pub Date : 2024-07-31 DOI: 10.22214/ijraset.2024.63676
R. K. Sree
Abstract: While polysomnography (PSG) is the gold standard for detecting sleep apnea (SA), the insertion of several disruptive devices may impair the quality of the patient's sleep, and its interpretation requires specialised training from a sleep scientist or technician. Heart rate variability (HRV) and electrocardiogram (ECG)-derived respiration (EDR) have been used in recent years to automatically detect SA and lessen the negative effects of PSG. Currently, the majority of suggested methods concentrate on feature engineering and machine learning (ML) techniques, which call for previous expert knowledge and expertise. This paper uses a deep learning (DL) framework based on 1D and 2D deep CNN with empirical mode decomposition (EMD) of a preprocessed ECG signal to propose a SA detection method to distinguish between a normal and apnea occurrence. The EMD is the perfect tool for removing crucial elements that characterise the underlying physiological or biological processes. Based on 5- fold cross-validation (5fold-CV), the segment-level classification performance had 93.8% accuracy with 94.9% sensitivity and 92.7% specificity. As a result, this work effectively created a unique and reliable SA detection system based on the ECG decomposed signal utilising EMD and deep CNN.
摘要:虽然多导睡眠图(PSG)是检测睡眠呼吸暂停(SA)的黄金标准,但插入多个干扰性设备可能会影响患者的睡眠质量,而且其解读需要睡眠科学家或技术人员的专业培训。近年来,心率变异性(HRV)和心电图(ECG)推导的呼吸(EDR)已被用于自动检测 SA 并减轻 PSG 的负面影响。目前,大多数建议的方法都集中在特征工程和机器学习(ML)技术上,这需要先前的专业知识和专业技能。本文使用基于一维和二维深度 CNN 的深度学习(DL)框架,结合预处理心电信号的经验模式分解(EMD),提出了一种 SA 检测方法,以区分正常和呼吸暂停的发生。EMD 是去除表征潜在生理或生物过程的关键元素的完美工具。基于 5 倍交叉验证(5fold-CV),分段级分类的准确率为 93.8%,灵敏度为 94.9%,特异度为 92.7%。因此,这项研究利用 EMD 和深度 CNN 有效地创建了一个基于心电图分解信号的独特而可靠的 SA 检测系统。
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引用次数: 0
Advancements in Safety: Utilizing CNNs for Helmet Detection and License Plate Recognition 安全领域的进步:利用 CNN 进行头盔检测和车牌识别
Pub Date : 2024-07-31 DOI: 10.22214/ijraset.2024.63519
S. Krishnaveni
Abstract: In contemporary times, road accidents stand out as significant contributors to human fatalities. Among these, motorcycle accidents are prevalent and often result in severe injuries. Helmets serve as crucial protective gear for motorcyclists, yet adherence to helmet laws remains lacking. To overcome this issue, a system that uses image processing and convolutional neural networks (CNNs) has been created. This system encompasses motorbike detection, helmet classification (helmet vs. no helmet), and motorbike license plate recognition. Motorbikes are initially identified using YOLOV3. Afterward, a CNN evaluates if the biker is wearing a helmet. In cases where a helmet violation is detected, the system utilizes tesseract OCR to recognize the motorcycle's license plate, facilitating enforcement measures.
摘要:在当代,道路交通事故是造成人员死亡的重要原因。其中,摩托车事故十分普遍,往往会造成严重伤害。头盔是摩托车驾驶员的重要防护装备,但人们对头盔法规的遵守情况却不尽如人意。为了解决这个问题,我们创建了一个使用图像处理和卷积神经网络(CNN)的系统。该系统包括摩托车检测、头盔分类(头盔与无头盔)和摩托车车牌识别。最初使用 YOLOV3 对摩托车进行识别。然后,CNN 评估摩托车手是否佩戴头盔。在检测到违反头盔规定的情况下,系统利用魔方 OCR 识别摩托车的车牌,从而为执法措施提供便利。
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引用次数: 0
Broadband Antenna Operating in Sub 6GHz Frequency for Long Range 5G Communication 用于远距离 5G 通信的 6GHz 以下频率宽带天线
Pub Date : 2024-07-31 DOI: 10.22214/ijraset.2024.63529
Atharva Gandhi
Abstract: A novel broadband antenna designed for long-range 5G communication in the sub-6GHz frequency band is presented. Through rigorous optimization and simulation, the antenna achieved high gain, low side-lobe levels, and uniform radiationpatterns. Experimental validation confirms its efficacy, offering a compact and robust solution for advancing global connectivity in next-generation wireless networks
摘要:本文介绍了一种为 6GHz 以下频段 5G 长距离通信而设计的新型宽带天线。通过严格的优化和仿真,该天线实现了高增益、低侧漏水平和均匀的辐射模式。实验验证证实了它的功效,为推进下一代无线网络中的全球连接提供了一种紧凑而稳健的解决方案。
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引用次数: 0
Design and Fabrication of Automated Accumulator for Waste Management 设计和制造用于废物管理的自动蓄能器
Pub Date : 2024-07-31 DOI: 10.22214/ijraset.2024.63481
P. Gokul
Abstract: In today's society, the escalating issue of improper waste disposal looms large. As population density swells, so does the volume of waste produced, straining landfill capacities, polluting the environment, and posing grave health risks. Traditional waste collection approaches fall short, proving costly, laborious, and inadequate in addressing the mounting problem. This underscores the urgent need for innovative solutions. Enter the automated accumulator: a pioneering system designed to revolutionize waste management by streamlining processes and boosting efficiency. Combining cutting-edge sensor technology, robotics, and data analytics, the automated accumulator redefines waste management efficiency. Through instantaneous waste identification and categorization, it revolutionizes resource distribution, slashes manual labor requirements, and curtails environmental pollution.
摘要:在当今社会,废物处理不当的问题日益严重。随着人口密度的增加,产生的垃圾量也随之增加,使垃圾填埋场的容量不堪重负,污染了环境,并带来了严重的健康风险。传统的垃圾收集方法成本高、耗时长,不足以解决日益严重的问题。因此,迫切需要创新的解决方案。自动化蓄能器的出现:这是一个开创性的系统,旨在通过简化流程和提高效率来彻底改变废物管理。自动堆积机结合了尖端传感器技术、机器人技术和数据分析技术,重新定义了废物管理效率。通过即时的废物识别和分类,它彻底改变了资源分配,减少了人工需求,并减少了环境污染。
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引用次数: 0
Prediction of Resale Value of Pre-Owned Luxury Cars in the Indian Market Employing Machine Learning Techniques 利用机器学习技术预测印度市场上二手豪华汽车的转售价值
Pub Date : 2024-07-31 DOI: 10.22214/ijraset.2024.63709
Ranjith K
Abstract: The market for second-hand luxury cars in India is witnessing a significant surge, expected to grow at a rate of 16.30% from 2024 to 2032. This growth is fueled by increased car manufacturing, rising disposable incomes, and a shift in consumer preferences towards luxury brands. However, accurately determining the resale value of these vehicles presents a challenge due to various influencing factors. In this dynamic market, informed decision-making is crucial for luxury car buyers. Digital platforms have revolutionized access to real-time market data, helping both buyers and sellers stay updated on pricing trends. Our research explores the complexities of predicting prices for pre-owned luxury cars and introduces a predictive analytics framework using advanced machine learning algorithms. We collected and preprocessed a comprehensive dataset and conducted an in-depth exploratory data analysis. Various regression techniques, including Linear Regression, Decision Tree, Random Forest, and Extreme Gradient Boosting, were employed to forecast prices. These models were evaluated using metrics such as Mean Absolute Error (MAE), Mean Squared Error (MSE), and Root Mean Squared Error (RMSE) to identify the most accurate predictive model. This study offers a systematic solution for price prediction, enhancing the buying process for stakeholders in the second-hand luxury car market
摘要:印度的二手豪华车市场正在大幅增长,预计从 2024 年到 2032 年将以 16.30% 的速度增长。这一增长主要得益于汽车制造业的增长、可支配收入的增加以及消费者对豪华品牌的偏好。然而,由于各种影响因素,准确确定这些车辆的转售价值是一项挑战。在这个充满活力的市场中,明智的决策对于豪华车买家来说至关重要。数字平台彻底改变了实时市场数据的获取方式,帮助买卖双方随时了解价格趋势。我们的研究探讨了预测二手豪华车价格的复杂性,并采用先进的机器学习算法引入了预测分析框架。我们收集并预处理了一个综合数据集,并进行了深入的探索性数据分析。我们采用了各种回归技术(包括线性回归、决策树、随机森林和极端梯度提升)来预测价格。使用平均绝对误差 (MAE)、平均平方误差 (MSE) 和均方根误差 (RMSE) 等指标对这些模型进行了评估,以确定最准确的预测模型。这项研究为价格预测提供了一个系统化的解决方案,从而改进了二手豪华车市场利益相关者的购买流程。
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引用次数: 0
Wind-Induced Responses in Tall Buildings Using International Standards: A Review 采用国际标准的高层建筑风致响应:综述
Pub Date : 2024-07-31 DOI: 10.22214/ijraset.2024.63613
Sakshi Kirar, D. Maru, Rakesh Patwa
Abstract: This study investigates the impact of international wind loading regulations on tall buildings by analyzing major codes from the United States (ASCE 7), Australia (AS/NZS 1170.2), Canada (NBC), and India (IS 875). The research reveals significant differences in the estimation of wind loads, attributed to variations in exposure categories, wind speed profiles, and calculation methodologies. Notably, the gust loading factor is commonly used across these standards. The parameters used to estimate wind loads by the international standards are also discussed. The findings underscore the necessity for global wind load limitations and emphasize the importance of considering local factors to ensure the structural safety and integrity of tall buildings under varying wind conditions.
摘要:本研究通过分析美国(ASCE 7)、澳大利亚(AS/NZS 1170.2)、加拿大(NBC)和印度(IS 875)的主要规范,调查了国际风荷载法规对高层建筑的影响。研究结果表明,由于暴露类别、风速分布和计算方法的不同,风荷载的估算存在显著差异。值得注意的是,这些标准普遍采用阵风荷载系数。此外,还讨论了国际标准用于估算风荷载的参数。研究结果强调了全球风荷载限制的必要性,并强调了考虑当地因素的重要性,以确保高层建筑在不同风力条件下的结构安全性和完整性。
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引用次数: 0
Utilizes Industrial By-Products Fly Ash and Metakaolin Instead of Traditional Cement 利用工业副产品粉煤灰和偏高岭土代替传统水泥
Pub Date : 2024-07-31 DOI: 10.22214/ijraset.2024.63602
Adil Ahmad, Dr. Manendra Pratap Verma, Dr. Vivek Soni
Abstract: Fly ash and Metakaolin based geopolymer concrete offers a sustainable and effective solution to reduce the carbon footprint of the construction industry and manage industrial waste. This review highlights the significant progress made in the research and development of GPC over the past two decades. However, further research is needed to address the challenges and fully realize the potential of geopolymer technology. Future efforts should focus on standardization, long-term performance evaluation, and economic viability to facilitate the widespread adoption of GPC in the construction industry.
摘要:以粉煤灰和偏高岭土为基础的土工聚合物混凝土为减少建筑业的碳足迹和管理工业废物提供了一种可持续的有效解决方案。本综述强调了过去二十年来在研究和开发土工聚合物混凝土方面取得的重大进展。然而,要应对挑战并充分发挥土工聚合物技术的潜力,还需要进一步的研究。未来的工作重点应放在标准化、长期性能评估和经济可行性上,以促进 GPC 在建筑行业的广泛应用。
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引用次数: 0
期刊
International Journal for Research in Applied Science and Engineering Technology
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