Engineering Research Express最新文献_第10页

Analysis of failure mechanism of concrete pole based on finite element extended method 基于有限元扩展法的混凝土电杆失效机理分析

Engineering Research Express Pub Date : 2024-06-14 DOI: 10.1088/2631-8695/ad58a3

Minglian Li, Runfeng Zhang, Haishu Ma, Peng Shen

{"title":"Analysis of failure mechanism of concrete pole based on finite element extended method","authors":"Minglian Li, Runfeng Zhang, Haishu Ma, Peng Shen","doi":"10.1088/2631-8695/ad58a3","DOIUrl":"https://doi.org/10.1088/2631-8695/ad58a3","url":null,"abstract":"\u0000 Concrete pole plays an important role in the distribution network, which is prone to degradation under the influence of the environment. Fracture failure accident is mainly caused by structural deterioration, including damage deterioration of concrete structure under stress overload state and deterioration of concrete material itself. Because the tensile strength of the concrete structure is much less than the compressive strength, it often shows cracking and deterioration. This paper first analyzes the deterioration process of concrete electric poles, and then constructs a damaged model of concrete electric poles according to the finite element method. It is found that the tensile strength of concrete electric poles is maximum at 2.4m, and the compression is maximum at 2-6m. Finally, the main factors leading to the failure and deterioration of concrete electric poles are studied based on the finite element extended method. The shallower the crack depth and the higher the concrete strength, the stronger the fracture resistance and bearing capacity of concrete poles. In addition, the annular crack at the height of 2.4m is the most likely to spread.","PeriodicalId":505725,"journal":{"name":"Engineering Research Express","volume":"34 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141341281","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 lightweight convolutional neural network for working condition intelligent diagnosis of pumping units 用于泵组工况智能诊断的轻量级卷积神经网络

Engineering Research Express Pub Date : 2024-06-14 DOI: 10.1088/2631-8695/ad58a5

Shenghu Pan, Qiaomei Ling, Lei Tu

{"title":"A lightweight convolutional neural network for working condition intelligent diagnosis of pumping units","authors":"Shenghu Pan, Qiaomei Ling, Lei Tu","doi":"10.1088/2631-8695/ad58a5","DOIUrl":"https://doi.org/10.1088/2631-8695/ad58a5","url":null,"abstract":"\u0000 Accurate diagnosis of pumping unit working conditions and prompt fault resolution are vital for ensuring safe production in oilfields. In response to the limitations of traditional convolutional neural networks in diagnosing pumping unit working conditions, a lightweight convolutional neural network is proposed. This network addresses the challenges of shallow networks, which cannot effectively extract indicator diagram features, and deep networks, which suffer from excessive parameterization and high redundancy. Firstly, the combination of depthwise separable convolution and dilated convolution efficiently extracts the contour features of the indicator diagram while reducing the model’s parameter count. Additionally, the Attention Embedded Atrous Spatial Pyramid Pooling and the coordinate attention mechanism are incorporated to further capture the shape and position information of indicator diagram lines. The experimental results demonstrate that the proposed lightweight network has 1.26 M parameters and storage size of 4.82 M. Compared to ResNet-50, VGG-16, and MobileNet-V2, its parameter count and storage size are approximately 1/18, 1/11, and 1/2, respectively, making it easily deployable on hardware-limited diagnostic platforms. Moreover, with an average diagnostic accuracy of 98.17%, surpassing existing networks, it enables more effective diagnosis of pumping unit working conditions, thereby enhancing the reliability and accuracy of pumping unit operational monitoring.","PeriodicalId":505725,"journal":{"name":"Engineering Research Express","volume":"34 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141340519","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

Engineering intelligent motion control protocol for dual-resolution linear actuator with unified coupled drive system 带统一耦合驱动系统的双分辨率线性致动器的工程智能运动控制协议

Engineering Research Express Pub Date : 2024-06-13 DOI: 10.1088/2631-8695/ad5811

Gagan Agrawal, Naimesh R. Patel, Neeraj Mathur, Shaunak R Joshi, Shri Hari S

{"title":"Engineering intelligent motion control protocol for dual-resolution linear actuator with unified coupled drive system","authors":"Gagan Agrawal, Naimesh R. Patel, Neeraj Mathur, Shaunak R Joshi, Shri Hari S","doi":"10.1088/2631-8695/ad5811","DOIUrl":"https://doi.org/10.1088/2631-8695/ad5811","url":null,"abstract":"\u0000 Actuators with high resolution and high range are always in demand for critical applications such as space applications, machining, and medical equipment. However dual-staged actuators serve the purpose, but in terms of space occupied, they are not efficient due to the reason that two separate actuators are utilized to obtain fine motion and coarse motion i.e. they have two separate drive systems. Hence a dual-resolution actuator that has a coarse motion segment and a fine motion segment in itself that runs through a common drive system was designed. A coupling mechanism is employed to engage and disengage with the coarse motion of the actuator, enabling the use of coarse motion only when required. Compared to a dual-staged actuator, the control algorithm structure for a dual-resolution actuator is much more complex due to the presence of a coupling mechanism. An intelligent algorithm focused on increasing the run time efficiency was developed and tested over the realized actuator. This paper describes the techniques adopted and the sequence of conditions used to enable the actuator to reach the target in the shortest time and minimum possible steps.","PeriodicalId":505725,"journal":{"name":"Engineering Research Express","volume":"22 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141347823","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 novel high-performance TG-based SRAM cell with 5nm FinFET technology 采用 5 纳米 FinFET 技术的基于 TG 的新型高性能 SRAM 单元

Engineering Research Express Pub Date : 2024-06-13 DOI: 10.1088/2631-8695/ad5812

Sandipan Pal, Bijoy Kumar Upadhayay, Dr. Tanmoy Majumder, Narottam Kumar Das, Abhishek Bhattacharjee

{"title":"A novel high-performance TG-based SRAM cell with 5nm FinFET technology","authors":"Sandipan Pal, Bijoy Kumar Upadhayay, Dr. Tanmoy Majumder, Narottam Kumar Das, Abhishek Bhattacharjee","doi":"10.1088/2631-8695/ad5812","DOIUrl":"https://doi.org/10.1088/2631-8695/ad5812","url":null,"abstract":"\u0000 In this study, we investigate the performance and reliability of a novel static random-access memory (SRAM) cell utilizing advanced 5 nm FinFET technology. Our research aims to address critical challenges in SRAM design by integrating transmission gates and power gated transistors. Through extensive simulations using the Cadence Virtuoso tool, we optimize the SRAM cell's read and write paths, resulting in substantial improvements in both functionalities. Additionally, our study unveils temperature-dependent variations in the read current and write margin, emphasizing the influence of temperature on SRAM performance. Compared to conventional FinFET SRAM circuits of equivalent bit-cell area and read latency, our innovative design showcases remarkable improvements across various parameters. Specifically, we achieve a commendable increase of 6.16% in the write static noise margin (WSNM) and 5.86% in the hold static noise margin (HSNM). Moreover, our findings reveal a substantial boost in read stability, increasing from 14.75% to 18.35%. These advancements underscore the promising potential of our approach in paving the way for future innovations in high-performance memory architectures. By leveraging state-of-the-art technology and meticulous optimization techniques, our research sets a new standard for SRAM design, offering enhanced performance, reliability, and efficiency in memory systems.","PeriodicalId":505725,"journal":{"name":"Engineering Research Express","volume":"69 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141348079","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

Comparative simulation analysis of µc Si:H and SnS BSF layers in CIGS solar cells CIGS 太阳能电池中 µc Si:H 层和 SnS BSF 层的对比模拟分析

Engineering Research Express Pub Date : 2024-06-12 DOI: 10.1088/2631-8695/ad5786

Manish Deo, R. Chauhan, Manish Kumar

{"title":"Comparative simulation analysis of µc Si:H and SnS BSF layers in CIGS solar cells","authors":"Manish Deo, R. Chauhan, Manish Kumar","doi":"10.1088/2631-8695/ad5786","DOIUrl":"https://doi.org/10.1088/2631-8695/ad5786","url":null,"abstract":"\u0000 In this paper, we presented Cu(In1-xGax)Se2 (CIGS) based solar cells in which hydrogenated microcrystalline silicon (µc Si:H) and tin sulfide (SnS) are used as back surface field (BSF) layer. The drawback of CIGS lies in its incorporation of indium (In) and gallium (Ga), both are scarce and expensive materials. Optimizing absorber thickness offers a means to diminish the usage of these materials in the CIGS cells. Integrating a heavily doped layer between the absorber layer and the back surface layer, known as BSF layer, is a successful strategy for minimizing the thickness of the absorber layer. The suggested configuration utilizes µc-Si:H and SnS as the BSF layer. The buffer layer in this configuration employs less harmful InP instead of the typically utilized CdS layer, which contains highly toxic cadmium. All the simulation work is performed using SCAP-1D simulation tool. The utilization of µc Si:H and SnS BSF layers yields optimized efficiencies of 31.51% and 31.01%, respectively. This simulation work demonstrates that use of a proper BSF layer is very effective not only in performance enhancement but also in reducing absorber material thickness.","PeriodicalId":505725,"journal":{"name":"Engineering Research Express","volume":"6 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141353599","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

Performance evaluation of ruthenium complexes and organic sensitizers in ZnO-based dye-sensitized solar cells 氧化锌染料敏化太阳能电池中钌络合物和有机敏化剂的性能评估

Engineering Research Express Pub Date : 2024-06-12 DOI: 10.1088/2631-8695/ad5787

Muniba Ayub, Nadia Shahzad, Ahad Hussain Javed, Sana Mehmood, Saad Nadeem, Zuhair S. Khan, Sehar Shakir, Faroha Liaqat, Ghulam Shabir, Faisal Abbas, Muhammad Imran Shahzad, Diego Pugliese

{"title":"Performance evaluation of ruthenium complexes and organic sensitizers in ZnO-based dye-sensitized solar cells","authors":"Muniba Ayub, Nadia Shahzad, Ahad Hussain Javed, Sana Mehmood, Saad Nadeem, Zuhair S. Khan, Sehar Shakir, Faroha Liaqat, Ghulam Shabir, Faisal Abbas, Muhammad Imran Shahzad, Diego Pugliese","doi":"10.1088/2631-8695/ad5787","DOIUrl":"https://doi.org/10.1088/2631-8695/ad5787","url":null,"abstract":"\u0000 Ruthenium (Ru) dyes are a well-known player in the field of dye-sensitized solar cells (DSSCs) due to their high efficiency and excellent stability. Their properties and complexes have been studied for almost three decades. Although these sensitizers show better performances, their high cost makes these third-generation solar devices less economical. Organic dyes have recently been explored as an alternative to Ru-based dyes due to their easy and low-cost synthesis. A comparative performance evaluation of Ru complexes and dicyanoisophorone and rhodanine organic dyes in ZnO-based DSSCs is here reported. All the Ru complexes showed better performance in comparison to organic dyes except R-4. Among the Ru sensitizers, R-3 exhibited the highest efficiency of 1.21% followed by R-2, which is attributed to the presence of several anchoring groups such as carboxyl, nitro and amine. However, the presence of more nitrogen-based groups has drastically reduced the performance as observed for R-4, which is the least performing dye among the Ru-based ones. On the contrary, organic sensitizers S-06 and P-4 revealed to be less efficient with respect to R-3 owing to the presence of only one anchoring group and weak photoanode/dye interaction.","PeriodicalId":505725,"journal":{"name":"Engineering Research Express","volume":"75 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141353069","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

Cross-condition bearing fault detection based on online drift detection and domain adaptation 基于在线漂移检测和域适应的交叉条件轴承故障检测

Engineering Research Express Pub Date : 2024-06-12 DOI: 10.1088/2631-8695/ad5785

Shi jing Cao

{"title":"Cross-condition bearing fault detection based on online drift detection and domain adaptation","authors":"Shi jing Cao","doi":"10.1088/2631-8695/ad5785","DOIUrl":"https://doi.org/10.1088/2631-8695/ad5785","url":null,"abstract":"\u0000 Aiming at the problem that the data distribution of bearings across operating conditions generates offset resulting in insufficient diagnostic accuracy of the original model for new data, a cross-condition bearing fault detection method based on online drift detection and domain adaptation is proposed. First, the original one-dimensional vibration signals collected are transformed by a two-dimensional wavelet transform to convert the time-frequency image dataset. Second, the drift detection of the data across operating conditions is carried out using Random Forest (RF), and the 3σ criterion as well as the drift detection judgment criteria are set. Next, the source domain model based on Googlenet is used to extract features from the target domain data, and the Whale Optimization Algorithm to Improve Local Preserving Projection Algorithm (WOA-LPP) algorithm is combined to construct a brand-new projection space to align the features of the source and target domains. Then, the source and target domain features are reconstructed by combining the LPP optimal projection matrix to construct a fully connected network trained by the source domain features. Finally, probabilistic label-based decision fusion is proposed to integrate multiple classifiers to reduce the effects of model training randomness and strong noise interference. Validated by the publicly available Western Reserve University bearing data, the method proposed in this paper has good detection accuracy as well as robustness across operating conditions, which can effectively improve the defects of shifting data distribution and degradation of model accuracy under variable speed.","PeriodicalId":505725,"journal":{"name":"Engineering Research Express","volume":"113 24","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141352113","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

Dynamic PI-PD cascaded MPPT controller for SPV system with battery charging circuit 带电池充电电路的 SPV 系统动态 PI-PD 级联 MPPT 控制器

Engineering Research Express Pub Date : 2024-06-11 DOI: 10.1088/2631-8695/ad56ff

Sweety Kumari, Ramesh Kumar

{"title":"Dynamic PI-PD cascaded MPPT controller for SPV system with battery charging circuit","authors":"Sweety Kumari, Ramesh Kumar","doi":"10.1088/2631-8695/ad56ff","DOIUrl":"https://doi.org/10.1088/2631-8695/ad56ff","url":null,"abstract":"\u0000 This paper proposes a dynamic maximum power point tracking (MPPT) controller for a solar photovoltaic (SPV) system with a battery charging circuit. The voltage and current, and consequently the maximum available power of SPV panels vary based on environmental conditions. To operate SPV system at maximum power point under different weather conditions, a cascaded (PI-PD) controller with PSO gain scheduling is suggested in this paper. Also, the FOPI control is applied to an accurate dynamic model of the buck converter to function as a charge controller. For tuning the FOPI controller parameters, a stochastic inertia weight GWO algorithm is employed which maintains an appropriate balance between detection and hunting strategies, and gives the fittest wolf position during iterations. The proposed algorithm is compared with the original GWO algorithm to show its superiority. The accuracy of the proposed cascaded controller used in the SPV system to find MPP ranges from 96.05% to 98.87%. The goal of this study is to operate the SPV panel at maximum power point under variable atmospheric conditions to increase efficiency at a lower cost. It also provides appropriate current and voltage for faster battery charging, thereby increasing the life span of the battery. The system is implemented and analyzed in MATLAB/Simulink, and results are validated.","PeriodicalId":505725,"journal":{"name":"Engineering Research Express","volume":"5 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141356898","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

Track fastener detection in special scenarios based on TSR-Net 基于 TSR-Net 的特殊场景中的轨道扣件检测

Engineering Research Express Pub Date : 2024-06-11 DOI: 10.1088/2631-8695/ad56fe

Tangbo Bai, Jiaming Duan, Haochen Fu, Hao Zong

引用次数: 0

AI and the next medical revolution: deep learning's uncharted healthcare promise 人工智能与下一场医疗革命：深度学习的未知医疗前景

Engineering Research Express Pub Date : 2024-06-11 DOI: 10.1088/2631-8695/ad56fc

Krithika Lb, Vishnu S, Evans Kotei, Gadde Ashok, Abhirup Kothamasu Ganga, Nallabantu Sri Charan, Guruprakash J

{"title":"AI and the next medical revolution: deep learning's uncharted healthcare promise","authors":"Krithika Lb, Vishnu S, Evans Kotei, Gadde Ashok, Abhirup Kothamasu Ganga, Nallabantu Sri Charan, Guruprakash J","doi":"10.1088/2631-8695/ad56fc","DOIUrl":"https://doi.org/10.1088/2631-8695/ad56fc","url":null,"abstract":"\u0000 Deep learning has shown tremendous potential for transforming healthcare by enabling more accurate diagnosis, improved treatment planning, and better patient outcome predictions. In this comprehensive survey, we provide a detailed overview of the state-of-the-art deep learning techniques and their applications across the healthcare ecosystem. We first introduce the fundamentals of deep learning and discuss its key advantages compared to traditional machine learning approaches. We then present an in-depth review of major applications of deep learning in medical imaging, electronic health record analysis, genomics, medical robotics, and other domains. For each application, we summarize key advancements, outline technical details of state-of-the-art methods, discuss challenges and limitations, and highlight promising directions for future work. Moreover, we examine cross-cutting challenges in deploying deep learning in clinical settings, including interpretability, bias, and data scarcity. We conclude by proposing a roadmap to accelerate the translation and adoption of high-impact healthcare applications of deep learning. Overall, this survey provides a comprehensive reference for researchers and practitioners working at the intersection of deep learning and healthcare.","PeriodicalId":505725,"journal":{"name":"Engineering Research Express","volume":"83 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141359709","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