Tikrit Journal of Engineering Sciences最新文献_第2页

Suppression of the Capacitor Voltage ripple in Modular Multilevel Converter for Variable-Speed Drive Applications 抑制变速驱动应用模块化多电平转换器中的电容器电压纹波

Tikrit Journal of Engineering Sciences Pub Date : 2024-02-13 DOI: 10.25130/tjes.31.1.6

Ahmed K. Hannan, Zainab A. Kadhum, Anmar K. Ali, Abdelrahman Farghly, Ibtisam K. Hanan

引用次数: 0

Suppression of the Capacitor Voltage ripple in Modular Multilevel Converter for Variable-Speed Drive Applications 抑制变速驱动应用模块化多电平转换器中的电容器电压纹波

Tikrit Journal of Engineering Sciences Pub Date : 2024-02-13 DOI: 10.25130/tjes.31.1.6

Ahmed K. Hannan, Zainab A. Kadhum, Anmar K. Ali, Abdelrahman Farghly, Ibtisam K. Hanan

引用次数: 0

Quantifying the Reliability of Volumetric and Areal Calculation with UAV-Generated DEMs: A Comparative Study with Ground Truth Data 利用无人机生成的 DEM 对体积和面积计算的可靠性进行量化：与地面实况数据的比较研究

Tikrit Journal of Engineering Sciences Pub Date : 2024-02-02 DOI: 10.25130/tjes.31.1.5

Ahmed J. Hussein, Sabbar A. Salih

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Removal of Monovalent and Divalent Cations from Brine Water by Electrodialysis Using Modified Polyethersulfone Membranes 使用改性聚醚砜膜通过电渗析去除盐水中的一价和二价阳离子

Tikrit Journal of Engineering Sciences Pub Date : 2024-01-13 DOI: 10.25130/tjes.31.1.3

Z. A. Khalaf, Sarah S. Mohammed Jawad

{"title":"Removal of Monovalent and Divalent Cations from Brine Water by Electrodialysis Using Modified Polyethersulfone Membranes","authors":"Z. A. Khalaf, Sarah S. Mohammed Jawad","doi":"10.25130/tjes.31.1.3","DOIUrl":"https://doi.org/10.25130/tjes.31.1.3","url":null,"abstract":"In electrodialysis, an ion exchange membrane removes unwanted ions from wastewater and toxic metal ions from effluents. Montmorillonite-based modified \"polyethersulfone membranes\" have been studied as a potential small-scale electrodialysis approach for removing ions from wastewater. The study featured several steps, including solid polymerization, electrolyte balance, and removal of each component from the water. The study used three distinct “cation-exchange membranes (CEM)\" types. The selected water body was diluted 100 times before being added to the electrodialysis cell in amounts of the center, cathodic, and anodic chambers, each containing 55, 30, and 40 mL. The initial pH for the real solutions of the water body was 7.16 at 25°C. Compared to \"Sulfonated poly arylene ether sulfone (S-PESOS)\" (23.23%) and Nafion® (35.34%), \"hexamethylenediamine (HEXCl)\" stands out as the only cross-linked material with significantly high-water content. When the membrane water content is too high, the membrane may lose its mechanical strength and cannot provide enough ionic conductivity. The semi-empirical model's parameters were estimated to simulate the elimination of Na+, K+, Ca2+, and Mg2+ by three membranes. HEXCl and S-PESOS were electrodialyzed and used to treat the serial dilution from the water with cationics. The removal rate gradually rose after the electrodialysis started.","PeriodicalId":30589,"journal":{"name":"Tikrit Journal of Engineering Sciences","volume":"8 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140509460","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

Blind and Non-Blind Deconvolution-Based Image Deblurring Techniques for Blurred and Noisy Image 基于盲和非盲解卷积的模糊和噪声图像去模糊技术

Tikrit Journal of Engineering Sciences Pub Date : 2024-01-09 DOI: 10.25130/tjes.31.1.2

S. W. Nourildean

{"title":"Blind and Non-Blind Deconvolution-Based Image Deblurring Techniques for Blurred and Noisy Image","authors":"S. W. Nourildean","doi":"10.25130/tjes.31.1.2","DOIUrl":"https://doi.org/10.25130/tjes.31.1.2","url":null,"abstract":"Abstract: Image deblurring is a common issue in low-level computer vision aiming to restore a clear image from a blurred input image. Deep learning innovations have significantly advanced the solution to this issue, and numerous deblurring networks have been presented to recover high-quality images. This study aims to investigate the impact of Blind deconvolution and Non-Blind Deconvolution (Weiner Filter, Regularized Filter, and lucky Richardson) deblurring techniques and blind deconvolution to retrieve the original image from the blurring and the noisy images. Point Spread Function (PSF) is required to perform the deconvolution process. MATLAB program is utilized in this study as a suitable tool for image processing. Peak to Signal Ratio (PSNR) and structural index similarity (SSIM) are the major parameters used to examine image quality. The results showed that the Regularized Filter was an effective technique to deblur the blurry image, and it achieved the largest PSNR and best SSIM with the prior information about the PSF for different degrees of blurring angle. These four deblurring techniques were unsuccessful in restoring the original image from the image with Gaussian noise.","PeriodicalId":30589,"journal":{"name":"Tikrit Journal of Engineering Sciences","volume":" 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139628327","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

Dual Performance Optimization of 6-DOF Robotic Arm Trajectories in Biomedical Applications 生物医学应用中 6-DOF 机械臂轨迹的双重性能优化

Tikrit Journal of Engineering Sciences Pub Date : 2024-01-03 DOI: 10.25130/tjes.31.1.1

Kian Raheem Qasim, Yousif Al Mashhadany, E. T. Yassen

{"title":"Dual Performance Optimization of 6-DOF Robotic Arm Trajectories in Biomedical Applications","authors":"Kian Raheem Qasim, Yousif Al Mashhadany, E. T. Yassen","doi":"10.25130/tjes.31.1.1","DOIUrl":"https://doi.org/10.25130/tjes.31.1.1","url":null,"abstract":"For the first time, dual-performance perfection technologies were used to kinematically operate sophisticated robots. In this study, the trajectory development of a robot arm is optimized using a dual-performance perfection technique. The proposed approach alters the robot arm's Kinematics by creating virtual points even if the robotic system is not redundant to make it kinematically suitable for biomedical applications. In the suggested method, an appropriate objective function is chosen to raise one or maybe more performance measures while lowering one or more kinematic characteristics of a robot arm. The robot arm's end effector is set in place at the crucial locations, and the dual performance precision algorithm changes the joints and virtual points due to the robot arm's self-motion. As a result, the ideal values for the virtual points are established, and the robot arm's design is changed. Accordingly, this method's ability to visualize modifications made to the processor's design during the optimization problem is one of its benefits. The active robotic arm is used as a case study in this article. The task is defined as choosing the best path based on the input target's position and direction and is used in X-ray robot systems. The outcomes demonstrate the viability of the suggested approach and can serve as a useful prototype for an intelligent X-ray robot.","PeriodicalId":30589,"journal":{"name":"Tikrit Journal of Engineering Sciences","volume":"14 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139630666","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

An End-to-End Security Scheme for Protection from Cyber Attacks on Internet of Things (IoT) Environment 防止物联网（IoT）环境遭受网络攻击的端到端安全方案

Tikrit Journal of Engineering Sciences Pub Date : 2023-12-19 DOI: 10.25130/tjes.30.4.16

Ahamd Khader Habboush, Bassam Mohammed Elzaghmouri, B. K. Pattanayak, Saumendra Pattnaik, Rami Ahmad Habboush

引用次数: 0

New Algorithm for Real-Valued Fourier Transform 实值傅里叶变换新算法

Tikrit Journal of Engineering Sciences Pub Date : 2023-12-07 DOI: 10.25130/tjes.30.4.13

Sukaina K. Salih, M. Hamood

引用次数: 0

Model Predictive Control Design for Electric Vehicle Based on Improved Physics-Inspired Optimization Algorithms 基于改进物理优化算法的电动汽车模型预测控制设计

Tikrit Journal of Engineering Sciences Pub Date : 2023-12-05 DOI: 10.25130/tjes.30.4.12

M. S. Alkreem, N. H. Abbas

引用次数: 0

Performance Analysis of Cooperative NOMA for Different Power Allocation Strategies 不同功率分配策略下的合作 NOMA 性能分析

Tikrit Journal of Engineering Sciences Pub Date : 2023-12-01 DOI: 10.25130/tjes.30.4.11

S. H. Saeed, Ibrahim Khalil Sileh

{"title":"Performance Analysis of Cooperative NOMA for Different Power Allocation Strategies","authors":"S. H. Saeed, Ibrahim Khalil Sileh","doi":"10.25130/tjes.30.4.11","DOIUrl":"https://doi.org/10.25130/tjes.30.4.11","url":null,"abstract":"Cooperative None Orthogonal Multiple Access (C-NOMA) is a promising approach for 5G and beyond communication networks. Users will benefit from the full bandwidth of the channel without time constraints. NOMA’s features are incomplete without efficient power allocation that ensures power distribution among users fairly. Integrating power management (allocation) with Cooperative-NOMA (C-NOMA) may improve the system metrics. In addition, a physical layer security (PLS) is added to make the process of sending and receiving safe, and the system works in an integrated manner, preventing any interrupting or eavesdropping inside or outside the network. This paper demonstrates the user and channel performance of C-NOMA with Amplify-and-forward (AF) and Decode-and-forward (DF) approaches. The analysis is performed by varying the power allocation techniques to derive the best system configurations. The simulation results confirmed the analytic findings and showed that the proposed system outperforms orthogonal multiple access (OMA), conventional NOMA, and conventional cooperative NOMA, enhancing the performance metrics in terms of throughput, sum rate, and outage probability. The bit-error-rate (BER) of the far user can be identical to that of the near user if power allocation is properly set. All techniques excelled except for the fixed power allocation, which had the same BER. The Channel capacity and outage probability were also considered. A slight variation in the channel capacity in all the experiments for different numbers of users was found. The generalized power allocation for AF and DF models had the optimum channel capacity close to 14 bps/Hz. Moreover, far users always had a higher outage probability than near users and channels, and generalized power allocation was the highest outage probability technique when the transmit power was close to (4 dB).","PeriodicalId":30589,"journal":{"name":"Tikrit Journal of Engineering Sciences","volume":"161 1-3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139194871","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