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PROCEEDINGS OF THE III INTERNATIONAL CONFERENCE ON ADVANCED TECHNOLOGIES IN MATERIALS SCIENCE, MECHANICAL AND AUTOMATION ENGINEERING: MIP: Engineering-III – 2021最新文献

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Review of Digitalization using IoT Maturity Models: The Case of American Automotive SMEs 基于物联网成熟度模型的数字化研究综述:以美国汽车中小企业为例
Dharmender Salian
This study aims to review studies related to IoT maturity models in manufacturing systematically. Digitalization is vital for small and medium enterprises (SMEs) to retain a competitive advantage, reduce their operational expenses, and compete with larger firms in their respective market. Globally IoT-induced transformation in manufacturing has been significant. Due to the lack of resources, American Automotive SMEs have not been farsighted with regards to digitalization but benefits like improved workflows, efficiencies, reduced overheads, and value creation make it beneficial and invaluable to customers. This paper reviews the state of IoT applications in American Automotive SMEs using the assessment provided by the IoT maturity model.
本研究旨在系统回顾制造业物联网成熟度模型的相关研究。数字化对于中小企业(SMEs)保持竞争优势、降低运营费用以及在各自市场与大公司竞争至关重要。在全球范围内,物联网引发的制造业转型意义重大。由于缺乏资源,美国汽车中小企业在数字化方面并没有远见,但改善工作流程、提高效率、降低管理费用和创造价值等好处使其对客户有益且无价。本文利用物联网成熟度模型提供的评估,回顾了美国汽车中小企业物联网应用的现状。
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引用次数: 0
Analysis of Thermal Performance of Double Flow Finned Absorber Solar Air Heater 双流翅片吸收体太阳能空气加热器热性能分析
Zar Chi Linn, War War Min Swe, Aung Kyaw Soe, Aung Ko Latt
This paper investigated the thermal performance of a solar air collector with attached rectangular fins both theoretically and experimentally. The effects of mass flow rate (0.015 kg/s to 0.06 kg/s) and fin spacing on thermal performance and temperature rise were investigated using varying solar radiation intensity (500, 600, 700, and 800 W/m2). The results show that, when using a finned absorber instead of a plane absorber, the maximum thermal efficiency of 1.264 times was achieved. Additionally, at a lower mass flow rate of 0.015 kg/s, a maximum increase in temperature rise has been observed to be 1.243 times greater than that of a plane absorber.
本文从理论和实验两方面研究了矩形翅片太阳能空气集热器的热性能。在太阳辐射强度为500、600、700和800 W/m2的情况下,研究了质量流量(0.015 kg/s ~ 0.06 kg/s)和翅片间距对热性能和温升的影响。结果表明,用翅片吸收器代替平面吸收器时,热效率最高可达1.264倍。此外,在0.015 kg/s的较低质量流量下,观察到的最大温升增幅是平面吸收器的1.243倍。
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引用次数: 0
MPPT String Arrangement and Production Improvements in String Inverters 串型逆变器的MPPT串布置及生产改进
Hale Bakır
Today, as the demand for electrical energy increases, the demand for renewable energy, which is a clean energy source, continues to increase. Solar inverters used in solar power plants are devices that convert DC power to AC. Solar inverters are divided into three groups as central inverter, micro inverter and string inverter. String inverter model is used in this study. It has been determined that as a result of incorrectly connecting the string cables during installation and workmanship in the string inverter, the solar inverter does not work at full capacity and full efficiency cannot be obtained at its output. A problem experienced during the connection and installation phase causes inefficiency in the system and inability to get full efficiency from the inverter. For this reason, in this study, MPPT string cable arrangement, which is connected incorrectly in a string inverter, has been carried out and the production has been increased to 96.72 kW.
今天,随着对电能需求的增加,对可再生能源这种清洁能源的需求也在不断增加。用于太阳能发电厂的太阳能逆变器是将直流电转换为交流电的装置。太阳能逆变器分为中心逆变器、微型逆变器和串式逆变器三大类。本文采用串型逆变器模型。经确定,由于安装时串式电缆连接错误以及串式逆变器的工艺问题,导致太阳能逆变器不能满负荷工作,无法在输出时获得全效率。在连接和安装阶段遇到的问题导致系统效率低下,无法从逆变器获得充分的效率。为此,本研究对串型逆变器中连接错误的MPPT串线布放问题进行了研究,将产量提高到96.72 kW。
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引用次数: 0
Detection of Tuberculosis Disease with Convolutional Neural Networks 卷积神经网络在结核病检测中的应用
Mehmet BABALIK, Çiğdem BAKIR
Tuberculosis is an infectious disease caused by bacteria called Mycobacterium tuberculosis. Tuberculosis is still an important public health problem worldwide and is common especially in developing countries. This respiratory disease can cause serious symptoms, especially affecting the lungs. Symptoms of tuberculosis include prolonged coughing, shortness of breath, chest pain, weakness, fever, night sweats, and malaise. The diagnosis of the disease is made by clinical signs as well as biomedical imaging methods and laboratory tests. These imaging modalities include techniques such as x-rays, computed tomography (CT), and magnetic resonance imaging (MRI). Early diagnosis of tuberculosis disease is of great importance in terms of treatment and prevention of the spread of the disease. The use of deep learning methods to classify biomedical images of tuberculosis disease can accelerate the diagnosis process, increase accuracy and guide treatment more effectively. In this study, it aims to be an important step in the classification of tuberculosis disease with deep learning. The generated CNN network, parameter values, layers used, complexity matrices obtained for verification data, accuracy and loss graphs are shown in detail. In our study, the success rate was increased by using a different network structure than the neural networks used in the literature. Approximately 98% success was achieved with the proposed CNN model.
结核病是一种由结核分枝杆菌引起的传染病。结核病仍然是世界范围内一个重要的公共卫生问题,在发展中国家尤为普遍。这种呼吸系统疾病会引起严重的症状,尤其是对肺部的影响。结核病的症状包括长时间咳嗽、呼吸短促、胸痛、虚弱、发烧、盗汗和不适。该疾病的诊断是通过临床症状以及生物医学成像方法和实验室检查做出的。这些成像方式包括x射线、计算机断层扫描(CT)和磁共振成像(MRI)等技术。结核病的早期诊断对于治疗和预防疾病的传播具有重要意义。利用深度学习方法对结核病生物医学图像进行分类,可以加快诊断过程,提高准确性,更有效地指导治疗。在本研究中,它旨在成为利用深度学习对结核病进行分类的重要一步。详细展示了生成的CNN网络、参数值、使用的层数、验证数据得到的复杂度矩阵、准确率和损失图。在我们的研究中,通过使用与文献中使用的神经网络不同的网络结构来提高成功率。所提出的CNN模型的成功率约为98%。
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引用次数: 0
Defining The Decisive Factors on Purchase and Comparing Feature Importance Methods 确定购买决定因素及特征重要性比较方法
Erman Demir, F. Serhan Daniş
Online retail companies focus on two activities for getting revenue in their businesses and to survive in the market. First activity is increasing traffic of the online shopping platform and second activity is converting this traffic to revenue for the company. Marketing facilities try to attract customers to the online shopping platforms at great costs. Because of the costs of getting traffic, it is crucial to make customers order. Online shopping platforms need to understand which factors are decisive on customer purchase decision. In this study, which factors are decisive on consumer purchase decisions will be studied on an e-commerce retail platform from Turkey, Hepsiburada. Which of these factors are most decisive try to be defined: traffic source type (google, campaign, direct etc.) of the customer, customer persona or segment, which types of page or page components has been seen, product position on the page, does the customer benefited from campaign or discount, product review scores and counts, has the product recommended or not. In this study, data will be gathered from Hepsiburada transactions stored in google's big query environment. Performance problems will be solved via SQL optimization and other methods. Data quality issues will be fixed to get consistent results. Then statistical methods, supervised machine learning and deep learning methods will be applied to data for getting feature importances. Importance value of the features will show which factor decisive on customer purchase decision. Feature importance values will be compared and evaluated according to method, model results. Hyperparameter tunings is applied to the methods. Also, the model performances will be compared and evaluated. This study uses and compares 7 methods and there is no comprehensive study in literature in terms of method variety.
在线零售公司专注于两项活动,以获得收入,并在市场上生存。第一项活动是增加在线购物平台的流量,第二项活动是将这些流量转化为公司的收入。营销机构试图以高昂的成本吸引顾客到网上购物平台。由于获得流量的成本,让客户下单是至关重要的。网上购物平台需要了解哪些因素对客户的购买决策起决定性作用。在本研究中,哪些因素对消费者的购买决策是决定性的,将研究来自土耳其的电子商务零售平台,Hepsiburada。这些因素中哪一个是最具决定性的:流量来源类型(谷歌,活动,直接等)的客户,客户角色或细分,哪种类型的页面或页面组件已被看到,产品在页面上的位置,客户是否受益于活动或折扣,产品评论得分和计数,产品是否被推荐。在本研究中,数据将从存储在谷歌大查询环境中的Hepsiburada交易中收集。性能问题将通过SQL优化和其他方法来解决。将修复数据质量问题以获得一致的结果。然后将统计方法、监督机器学习和深度学习方法应用到数据中以获得特征重要性。特征的重要值将显示哪些因素对顾客的购买决策起决定性作用。根据方法、模型结果对特征重要性值进行比较和评价。超参数调优应用于方法。并对模型的性能进行了比较和评价。本研究使用并比较了7种方法,在方法多样性方面尚无文献进行全面的研究。
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引用次数: 0
Investigation of T-history Method Application for Sub-zero Phase Change Material Thermal Properties t -历史法在亚零相变材料热性能研究中的应用
Thandiwe Bongani Radebe, Asasei Unarine Casey Ndanduleni, Zhongjie Huan
The T-history method, first proposed by Zhang & Jiang, is a simple method used to determine the latent heat, specific heat, thermal conductivity, melting point, and degree of supercooling of a phase-change material (PCM). The method is based on the measurement of the temperature of the material over time. It assumes that the PCM sample and the reference material exchange thermal energy with the environment in a similar manner, because it is based on the lumped capacitance method, and the temperature distribution inside the sample is uniform. There are multiple advantages that the T history method has over conventional methods; however, the T history method also has some downfalls, which have been improved over the years by different authors. This study experimentally investigates the reliability of this technique for PCM with a phase change temperature below 0 ° C. The technique is used to first determine the properties of denoised water with a phase change temperature of 0 ° C, using ethylene glycol with a mixture ratio of 50/50 as reference material. Second, by determining the properties of KCl with a concentration of 19.5% salt to water for a phase change temperature of -10 ° C. Two analytical approaches were used, one by immersing the samples in antifreeze during the charging process and the other by exposing the samples to ambient air during the discharging phase. The experimental results were further validated using the known literature to determine the latent heat of KCl. This study found that the latent heat of KCl measured using the technique has a 6.2% difference from the known results determined by the DSC. This study recommends the use of the T history method when designing latent heat thermal energy storage systems (LHTESS), because the sample size is an important characteristic for accurate thermophysical properties during the design process.
T-history方法,最早由Zhang等人提出。是一种用于测定相变材料(PCM)的潜热、比热、导热系数、熔点和过冷程度的简单方法。该方法是基于测量材料随时间的温度。假设PCM样品和参考物质以类似的方式与环境交换热能,因为它是基于集总电容法,并且样品内部的温度分布是均匀的。与传统方法相比,T历史方法有许多优点;然而,T历史方法也有一些缺点,多年来不同的作者对其进行了改进。本研究通过实验考察了该技术在相变温度低于0℃的PCM中的可靠性。该技术首先用于确定相变温度为0℃的去噪水的性质,以混合比为50/50的乙二醇为基准物质。其次,在-10℃的相变温度下,测定盐对水浓度为19.5%的氯化钾的性质,采用了两种分析方法,一种是在充电过程中将样品浸入防冻液中,另一种是在放电阶段将样品暴露在环境空气中。利用已知文献对实验结果进行进一步验证,确定了KCl潜热。本研究发现,使用该技术测量的KCl潜热与DSC确定的已知结果有6.2%的差异。本研究建议在设计潜热储热系统(LHTESS)时使用T历史方法,因为在设计过程中,样本量是精确热物理性质的重要特征。
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引用次数: 0
Detection of Credit Card Fraud with Artificial Neural Networks 基于人工神经网络的信用卡欺诈检测
Ferhat YEŞİLYURT, Hasan TEMURTAŞ, Çiğdem BAKIR
Along with the Internet, digital technologies are frequently used in every moment of our lives. Many transactions that we carry out in monetary terms such as shopping in our daily life are now done digitally. With the developing digitalization in the world, people's lives become easier and people can access different products in a short time. In particular, people can spend and shop quickly and easily without carrying cash in their pockets with a credit card. However, with the increase in the use of credit cards, there are also some security vulnerabilities. Fraudsters can gain unfair advantage by obtaining certain credit card information such as passwords. They can shop with someone else's credit card without permission. These transactions cause substantial financial damage to individuals and institutions. With the increase in the use of credit cards with the developing technology, such credit card fraud is also increasing rapidly. Taking precautions against credit card fraud is a very important issue in order to ensure the safety of people. For this reason, in order to ensure the security of both banks and financial institutions that provide credit card services, it is necessary to prevent credit card fraud and to detect fraud that may occur in credit cards within the scope of combating fraud. In our study, Artificial Neural Networks were used to detect credit card fraud transactions. A prediction model has been developed to detect fraud in credit card transactions with ANN. Using the Credit Card data set obtained from the Kaggle database, modeling was done with the Feed Forward Artificial Neural Network method. The aim of this study is to automatically detect abnormal behaviors made with credit cards. 98.44% success was achieved with feedforward artificial neural network.
随着互联网的发展,数字技术在我们生活中的每时每刻都被频繁使用。我们在日常生活中进行的许多货币交易,如购物,现在都是数字化的。随着世界数字化的发展,人们的生活变得更加容易,人们可以在短时间内获得不同的产品。特别是,人们不用在口袋里揣着现金就可以用信用卡快速方便地消费和购物。然而,随着信用卡使用的增加,也存在一些安全漏洞。欺诈者可以通过获取某些信用卡信息(如密码)来获得不公平的优势。他们可以在未经允许的情况下用别人的信用卡购物。这些交易给个人和机构造成了巨大的财务损失。随着科技的发展,信用卡的使用越来越多,这类信用卡诈骗也在迅速增加。防范信用卡诈骗是保障人们安全的一个重要问题。因此,为了确保提供信用卡服务的银行和金融机构的安全,有必要防止信用卡欺诈,并在打击欺诈的范围内发现信用卡可能发生的欺诈行为。在我们的研究中,人工神经网络被用于检测信用卡欺诈交易。利用人工神经网络建立了信用卡交易欺诈的预测模型。利用从Kaggle数据库中获取的信用卡数据集,采用前馈人工神经网络方法进行建模。这项研究的目的是自动检测信用卡的异常行为。前馈人工神经网络的成功率为98.44%。
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引用次数: 0
Electromechanical Model of Jigsaw 拼图机电模型
György Hegedűs, Sándor Apáti
This paper studies the electromechanical model of a jigsaw mechanism. The jigsaw is powered by a battery, which drives a DC motor. The rotational motion is converted into linear motion through a Scotch Yoke mechanism. The electromechanical equations are based on energy approach using the Lagrange-equation. The Lagrange function contains the energies of the model, i.e., the kinetic co-energy of the kinematic chain and the magnetic co-energy of the inductance. As regard the non-conservative elements their virtual works are written. The formulated equations of the jigsaw model allow us to examine this force-energy relationship.
本文研究了一种拼图机构的机电模型。拼图由一块电池供电,驱动直流电机。旋转运动通过苏格兰轭机构转换成直线运动。机电方程基于拉格朗日方程的能量方法。拉格朗日函数包含模型的能量,即运动链的动能共能和电感的磁性共能。至于非保守分子,他们的虚拟作品是写出来的。拼图模型的公式使我们能够检验这种力能关系。
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引用次数: 0
Toward Competent City Management using Multi-agent System (MAS) 利用多智能体系统(MAS)实现城市管理能力
Alaa Odeh, Rashid Jayousi, Amjad Rutrot
multi-agent system plays a crucial role in many aspects of life. This refers to its ability to provide scalable and flexible solutions to complex problems. One of these problems is the management of resources in different cities around the world. In this study, we have used the multi-agent system concepts to build competent city resources management. Because of the time and software complexity that arises from implementing the whole system, we chose to implement one city entity, the energy entity. Petri net is used to model the system mathematically. At the same time, we used CPN tools software to simulate the system behaviour in real life. The mathematical model and simulation results proved that the designed energy MAS would achieve its goals when applied in real life. In the future, we intend to complete the construction of the whole system for better resource management of all entities in the city
多智能体系统在生活的许多方面起着至关重要的作用。这指的是它为复杂问题提供可扩展和灵活的解决方案的能力。其中一个问题是世界各地不同城市的资源管理。在本研究中,我们运用多智能体系统的概念来建构胜任的城市资源管理。由于实现整个系统所产生的时间和软件复杂性,我们选择实现一个城市实体,即能源实体。采用Petri网对系统进行数学建模。同时,我们使用CPN工具软件来模拟系统在现实生活中的行为。数学模型和仿真结果表明,所设计的能量MAS在实际应用中能够达到预期目标。未来,我们打算完成整个系统的建设,以更好地管理城市中所有实体的资源
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引用次数: 0
Detection of Fungal Infections from Microscopic Fungal Images Using Deep Learning Techniques 利用深度学习技术从显微真菌图像中检测真菌感染
Ilkay Cinar, Yavuz Selim Taspinar
Fungal infections, due to their diverse manifestations and varying characteristics, present significant challenges in medical diagnosis. This study delves into applying deep-learning techniques for detecting fungal infections from microscopic fungal images. By harnessing the power of Convolutional Neural Networks (CNNs), we propose an approach that employs transfer learning to accurately classify different fungal species. The dataset comprises microscopic images of various fungal types, and to enhance model performance, we utilize data augmentation techniques. Furthermore, we aim to boost performance by fine-tuning the model's layers. Initially starting at 84.38% accuracy, our experimental results progressively reached high values of 95.35% and 97.19%. These results underscore the effectiveness of our deep learning approach in precisely identifying and classifying fungal infections. This success holds promising potential to aid medical professionals in timely and accurate diagnoses. The findings presented in this study contribute to ongoing research in medical image analysis and drive advancements in the field of automated disease detection.
真菌感染由于其多样的表现和不同的特征,在医学诊断中提出了重大挑战。本研究深入研究了应用深度学习技术从显微镜真菌图像中检测真菌感染。通过利用卷积神经网络(cnn)的力量,我们提出了一种使用迁移学习来准确分类不同真菌物种的方法。该数据集包括各种真菌类型的显微图像,为了提高模型性能,我们利用数据增强技术。此外,我们的目标是通过微调模型的层来提高性能。我们的实验结果从84.38%的准确率开始,逐步达到95.35%和97.19%的高值。这些结果强调了我们的深度学习方法在精确识别和分类真菌感染方面的有效性。这一成功有望帮助医疗专业人员及时准确地进行诊断。本研究的发现有助于正在进行的医学图像分析研究,并推动自动化疾病检测领域的进步。
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引用次数: 0
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PROCEEDINGS OF THE III INTERNATIONAL CONFERENCE ON ADVANCED TECHNOLOGIES IN MATERIALS SCIENCE, MECHANICAL AND AUTOMATION ENGINEERING: MIP: Engineering-III – 2021
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