NTU Journal of Engineering and Technology最新文献

Emerging Development of Wireless Localization Technologies Aided with Reconfigurable Intelligent Surfaces: A Comprehensive Survey 可重构智能表面辅助无线定位技术的新兴发展：全面调查

NTU Journal of Engineering and Technology Pub Date : 2024-07-01 DOI: 10.56286/4qepx615

Abdulrhman Kh. Alhafid, Y. E. Mohammed Ali, Sedki Younis

{"title":"Emerging Development of Wireless Localization Technologies Aided with Reconfigurable Intelligent Surfaces: A Comprehensive Survey","authors":"Abdulrhman Kh. Alhafid, Y. E. Mohammed Ali, Sedki Younis","doi":"10.56286/4qepx615","DOIUrl":"https://doi.org/10.56286/4qepx615","url":null,"abstract":"Wireless localization technologies have undergone a paradigm shift with the advent of the emerging trend which is the Reconfigurable Intelligent Surfaces (RISs). This paper presents a comprehensive survey of the state-of-the-art RIS-aided localization techniques, exploring the transformative impact of intelligent surfaces on location-based services. The survey comprehensively reviews existing wireless localization methods, ranging from the localization techniques in the wireless communications generations. It addition the challenges posed by conventional localization methods are discussed, including accuracy and coverage issues. In response to these challenges, the incorporation of RIS is explored as a promising paradigm to enhance the precision and reliability of wireless localization. The core of the paper focuses on the integration of RIS into localization systems, highlighting how these RISs can be strategically deployed to enhance accuracy, mitigate multipath effects, integration in different propagation environment and solve non feasible localization problems. The survey encompasses a wide range of applications, including outdoor positioning, indoor positioning, and Internet of Things (IoT) devices, showcasing the versatility of RIS-aided localization across various scenarios. Also, critical design aspects are examined, including propagation regions, hardware requirements, deployment strategies, necessary measurements, multiplexing, and signalling systems.","PeriodicalId":107611,"journal":{"name":"NTU Journal of Engineering and Technology","volume":"25 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141715792","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}

引用次数: 0

A Review of Enhancement Techniques for Cone Beam Computed Tomography Images 锥形束计算机断层扫描图像增强技术综述

NTU Journal of Engineering and Technology Pub Date : 2024-07-01 DOI: 10.56286/ntujet.v3i2.877

Hassn Mazin Al-alaaf, Mohammed Sabah Jarjees

{"title":"A Review of Enhancement Techniques for Cone Beam Computed Tomography Images","authors":"Hassn Mazin Al-alaaf, Mohammed Sabah Jarjees","doi":"10.56286/ntujet.v3i2.877","DOIUrl":"https://doi.org/10.56286/ntujet.v3i2.877","url":null,"abstract":"Cone Beam Computed Tomography (CBCT) has emerged as a valuable imaging modality for various medical applications due to its ability to provide three-dimensional information with minimal radiation exposure. However, CBCT images often suffer from inherent limitations, such as increased noise, artifacts, and reduced spatial resolution. This paper presents a comprehensive review of image processing techniques employed to enhance the quality of CBCT images, addressing the challenges posed by acquisition hardware and image reconstruction algorithms. The review covers a range of preprocessing and post-processing methods, including denoising, artifact correction, and resolution improvement techniques. These methods encompass various mathematical algorithms, machine learning approaches, and hybrid models, which aim to mitigate the imperfections present in CBCT data while preserving diagnostically relevant information. Additionally, this paper discusses the application of deep learning methods, convolutional neural networks, and generative adversarial networks in CBCT image enhancement. These advanced techniques have shown promise in tackling the complex nature of CBCT data and optimizing image quality.","PeriodicalId":107611,"journal":{"name":"NTU Journal of Engineering and Technology","volume":"9 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141703165","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}

引用次数: 0

Advances in Evaluating Fluid Levels: Bioimpedance in Patients with Kidney Failure 评估体液水平的进展：肾衰竭患者的生物阻抗

NTU Journal of Engineering and Technology Pub Date : 2024-07-01 DOI: 10.56286/ntujet.v3i2.882

Harith Abdelkareem Baker, Mohammed Sabah Jarjees, Amer Farhan Sheet, Thair Hawas Hamed

{"title":"Advances in Evaluating Fluid Levels: Bioimpedance in Patients with Kidney Failure","authors":"Harith Abdelkareem Baker, Mohammed Sabah Jarjees, Amer Farhan Sheet, Thair Hawas Hamed","doi":"10.56286/ntujet.v3i2.882","DOIUrl":"https://doi.org/10.56286/ntujet.v3i2.882","url":null,"abstract":"This study delves deeply into the various facets of bioimpedance analysis as it relates to the development of chronic kidney disease (CKD). The use of bioimpedance spectroscopy (BIS) to evaluate the effectiveness of peritoneal dialysis (PD) and determine dialysis adequacy using variables like volume (V) and Kt/V is at the heart of this compilation. The investigations closely look at how important water distribution is for the advancement of CKD and how that affects patient outcomes. Evaluation of several body composition measurement methods is emphasized, especially the combination of the bioelectrical impedance analysis (BIA) ratio and the dry mass index (DMI). By applying the BIA TBW Watson ratio, these approaches provide important insights into the relationships between fluid volume and physiological indicators, such as body mass index (BMI) and total body water (TBW). The study emphasizes the differences in fluid overload diagnosis between conventional clinical assessments and sophisticated bioimpedance techniques, particularly in older patients with chronic kidney disease (CKD), underscoring the need for proper monitoring and intervention.\u0000Bioimpedance analysis is crucial to understanding chronic renal disease and associated cardiac complications, as shown in the assembled study. Bioimpedance analysis, used in devices like the Body Composition Monitor (BCM), is highlighted in this study collection to monitor hydration and improve dialysis adequacy. Bioimpedance analysis improves illness treatment, giving chronic renal failure and heart failure patients a more precise and nuanced grasp of fluid management, according to the literature.","PeriodicalId":107611,"journal":{"name":"NTU Journal of Engineering and Technology","volume":"2017 41","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141706877","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}

引用次数: 0

PPG-based Vital Signs Measurement Using SmartPhone Camera: Review 使用智能手机摄像头进行基于 PPG 的生命体征测量：回顾

NTU Journal of Engineering and Technology Pub Date : 2024-07-01 DOI: 10.56286/ntujet.v3i2.788

Ghada Khairi Khessro, AbdulSattar Muhammed Khidhir

引用次数: 0

COVID-19 Mobile Applications: A Review COVID-19 移动应用程序：回顾

NTU Journal of Engineering and Technology Pub Date : 2024-07-01 DOI: 10.56286/ntujet.v3i2.189

Alaa Fares Alsafo, Mafaz Mohsin Alanezi

{"title":"COVID-19 Mobile Applications: A Review","authors":"Alaa Fares Alsafo, Mafaz Mohsin Alanezi","doi":"10.56286/ntujet.v3i2.189","DOIUrl":"https://doi.org/10.56286/ntujet.v3i2.189","url":null,"abstract":"Health Apps Facilitate Rapid and Timely Response to COVID-19 Outbreak. There is, however, no site that gives a comprehensive overview of the various applications created to battle the epidemic. This paper aims to look at the features and usefulness of free mobile health applications accessible in the Google Play and App stores that were used during the COVID-19 epidemic. The article found 11 mobile applications which are Mawid, Tabaud, Tawakkalna, Sehha, Aarogua Setu, Immuni, COVID-19 Symptom, NHS COVID-19, COVID watch, and finally PathCheck. Different features are investigated such as contact tracing, personalized notes, educational resources, network tools (GPS and Bluetooth), security and safety. Various applications have been built for various activities such as contact tracking, appointment booking, and online consultation. Only a few applications, however, have integrated functions and features including self-assessment, consultation, assistance, and information access. The majority of the applications are supported with GPS and Bluetooth technology for monitoring and tracing people. There were no applications found with built-in social media functionalities. It is advised that most of the characteristics and functions examined in this study have been used to build and construct an integrated mobile health application.","PeriodicalId":107611,"journal":{"name":"NTU Journal of Engineering and Technology","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141701487","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}

引用次数: 0

Machine learning Techniques for Spondylolisthesis Diagnosis: a review 用于脊柱滑脱症诊断的机器学习技术：综述

NTU Journal of Engineering and Technology Pub Date : 2024-07-01 DOI: 10.56286/ntujet.v3i2.768

Rahma Rabee Aziz, Mohammed S. Jarjees, Mohammad R. Aziz, Ali Asim Hameed

引用次数: 0

STUDY OF CFRP GEOMETRY ON SHEAR STRENGTHING OF RC CORBELS 研究 CFRP 几何形状对钢筋混凝土砌块抗剪强度的影响

NTU Journal of Engineering and Technology Pub Date : 2023-12-06 DOI: 10.56286/ntujet.v2i4.711

Hasan M. A. Albegmprli

引用次数: 0

The Impact of Urban Trees on Air Pollution in Kirkuk City: A Gaussian Dispersion Model Approach 城市树木对基尔库克市空气污染的影响：高斯扩散模型方法

NTU Journal of Engineering and Technology Pub Date : 2023-12-06 DOI: 10.56286/ntujet.v2i4.602

Ahmed Saeed Salih, Nihad Davut Hassan

引用次数: 0

THE EFFECT OF DIFFERENT DESIGN RATIOS ON THE COMPRESSIVE STRENGTH OF GEOPOLYMER CONCRETE: A PARAMETRIC STUDY USING THE TAGUCHI METHOD 不同设计比率对土工聚合物混凝土抗压强度的影响：采用田口方法进行的参数研究

NTU Journal of Engineering and Technology Pub Date : 2023-12-06 DOI: 10.56286/ntujet.v2i4.682

Ahmed Radhi Taha, Dr. Alyaa Abbas Al-Attar, Hasan Mohammed Ahmed

{"title":"THE EFFECT OF DIFFERENT DESIGN RATIOS ON THE COMPRESSIVE STRENGTH OF GEOPOLYMER CONCRETE: A PARAMETRIC STUDY USING THE TAGUCHI METHOD","authors":"Ahmed Radhi Taha, Dr. Alyaa Abbas Al-Attar, Hasan Mohammed Ahmed","doi":"10.56286/ntujet.v2i4.682","DOIUrl":"https://doi.org/10.56286/ntujet.v2i4.682","url":null,"abstract":"This paper presents the influence of numerous limits on compressive strength of fly ash-based geopolymer concrete mixtures optimized by Taguchi method using Minitab program. The major goal is to find the optimal ratios that may give the greatest compressive strength of geopolymer concrete. A total of twenty fife mixtures of geopolymer concrete with fife mixtures of normal concrete were assessed considering the effect of inclusion of Alkali-Activator to binder ratio (AA/B), NaOH concentration (M), Influence of Na2SiO3 to NaOH ratio (SS/SH) and effect of binder content (B). Different molarities was used in this study: 8, 10, 12, 14, and 16. Flay ash by way of waste material is used in ratios of (15, 17.5, 20, 22.5, and 25) % and substituted via 90 % of ordinary Portland cement to output the geopolymer concrete. Also, sodium silicate to sodium hydroxide are utilized in ratios of 1, 1.5, 2, 2.5, and 3. The alkali activator was made using sodium silicate, sodium hydroxide, and water in ratios of (0.3, 0.35, 0.4, 0.45, and 0.5). One type of locally crushed coarse aggregate was used instead of normal coarse aggregate that has sizes of 19 mm, as well as, fine aggregate. The examined mechanical property is characterized by compressive strength. The outcomes specify that the geopolymer concrete exhibits The highest compressive strength has been reached when the alkali-activator to binder ratio equal to 0.45, NaOH concentrations equal to 16, Na2SiO3 to NaOH ratio equal to 1 and binder content reached to 25 %. Also, the result showed that the compressive increases as the curing age increases. Moreover, scanning electron microscopy was evaluated to show the geopolymer concrete microstructure.","PeriodicalId":107611,"journal":{"name":"NTU Journal of Engineering and Technology","volume":"55 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138594981","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}

引用次数: 0

Improving the Gradation of Aggregate used in Asphalt Mixtures Using Bailey Method 使用贝利法改进沥青混合料中所用骨料的级配

NTU Journal of Engineering and Technology Pub Date : 2023-11-21 DOI: 10.56286/ntujet.v2i3.678

Emad Dawood Sulaiman, Jasim M. abed, Zaid Hazim Al-Saffar

{"title":"Improving the Gradation of Aggregate used in Asphalt Mixtures Using Bailey Method","authors":"Emad Dawood Sulaiman, Jasim M. abed, Zaid Hazim Al-Saffar","doi":"10.56286/ntujet.v2i3.678","DOIUrl":"https://doi.org/10.56286/ntujet.v2i3.678","url":null,"abstract":"The bailey method of gradation analysis it is one of the techniques used in pavement engineering for evaluating and designing asphalt mixtures based on the particle size distribution. This paper presents a comprehensive review of research conducted on the Bailey technique, focusing on its application and impact in the field of pavement engineering. The review encompasses studies that have investigated the effectiveness of the Bailey technique as a mix design tool, a quality control tool, and a performance assessment tool. Researchers have explored its ability to optimize asphalt mixtures for desired performance characteristics, such as rutting resistance, stability, and durability. They have also examined its effectiveness in ensuring consistency and conformity to specified requirements during asphalt production. Furthermore, the review highlights the correlation between the Bailey technique's gradation data and various performance properties of asphalt mixtures. Researchers have investigated the relationship between particle size distribution and properties like rutting resistance, moisture susceptibility, drainage, and particle packing. These studies have provided valuable insights into the influence of gradation on the performance of asphalt pavements.","PeriodicalId":107611,"journal":{"name":"NTU Journal of Engineering and Technology","volume":"51 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139252969","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}

引用次数: 0