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关键词： RFID   enabling technology   circular economy   literature review   R-Framework  

摘要： The paper offers an extensive review of literature regarding the role of RFID technology in promoting the circular economy (CE). Initially, it underscores the urgent need for resource recirculation to minimize waste and prevent the depletion of natural resources. Subsequently, it explores how RFID can improve traceability and enhance the efficiency of supply chains. The paper also delves into various CE frameworks, particularly focusing on the 9R framework, which encompasses strategies like Reduce, Reuse, and Recycle, among others. The literature is classified by industry sector, study type, and CE principles that RFID could enable or facilitate. Additionally, the paper highlights the significance of digital technologies in facilitating the transition to CE and examines whether RFID could be considered a key CE enabler within the IoT infrastructure. The findings confirm that RFID has the potential to support a range of CE strategies across various industry sectors, emphasizing sustainability and efficient resource use. The paper concludes by synthesizing RFID's contributions to the CE transition thus far and identifies future research areas, such as exploring approaches that incorporate other digital technologies alongside RFID to enhance and accelerate the CE transition.

关键词： Dual-band   multifrequency antennas   radiofrequency identification   Dual-band   multifrequency antennas   radiofrequency identification  

摘要： Metal cabinet environments, characterized by densely packed enclosures and strong multipath scattering, degrade read reliability for single-band UHF RFID systems. This letter introduces a miniature dual-band RFID tag antenna that incorporates antimetal features through a stacked configuration. A folded dipole formed on lower layers serves the UHF band, and a dual-patch array on an upper layer covers the microwave band, both excited by a single inductively coupled feed. This design reduces the antenna footprint from 170.0 mm x 140.0 mm to 76.0 mm x 33.5 mm (about a 89.3% decrease), meets chip impedances of 20 - j179 Omega at 915 MHz and 36 - j24 Omega at 2.45 GHz. Realized gains reach 1.2 dBi and 5.8 dBi on metal, with read ranges of 2.7 m (free space) and 7.8 m (on a 200 mm x 200 mm plate). Reliability tests in a server cabinet show that, under low power and high speed, 915 MHz drops to 48%, 2.45 GHz reaches 90%, and the dual-band setup sustains 100%, confirming the proposed design's robustness in confined metal-rich scenarios.

关键词： deployable antenna   patch antenna   coupling   RFID   tag  

摘要： This paper shows a high-gain planar deployable antenna ensuring air-gap to fold the antenna instead of commonly used way of folding transmission line. The air-gap works effectively not mechanically but also electrically. Proposed antenna has the volume constraints of folded width W, depth D, and height H, which are less than 150 mm and high directivity gain of 16.3 dBi.

关键词： RFID   Tag localisation   Wire-guided localisation   Wire-guided local excision   Breast   Cancer  

摘要： Background: Breast cancer screening programs have increased the detection of nonpalpable breast lesions. Given its accuracy and low failure rate, wire-guided localisation has long been the gold-standard prior to breast conserving surgery (BCS). Recently, several non-invasive localisation modalities have been developed, with varied efficacy reported. This study aimed to evaluate tag localisation's impact on margin positivity and re-excision rates and utility in management of benign lesions compared to wire-guided localisation. Methods: A retrospective comparative study was performed of patients, who underwent wide local excision (WLE) from 2020 to 2023, in a single institution. Descriptive statistics were performed on patient, tumour and radiological findings. Binary regression analysis was used to assess the association between localisation techniques and margin positivity and re-excision rates. Results: Of 680 patients included, 123 (18.1 %) underwent tag localisation, 298 (43.8 %) underwent ultrasound (US) guided wire localisation and 259 (38.1 %) underwent mammogram (MG) guided wire localisation. Tag localisation was associated with a significantly lower rate of positive margins compared to wire guided localisation (p < 0.03). While not statistically significant, a trend towards lower re-excision rates was observed post tag localisation (11.24 %) compared to both US guided wire localisation (18.99 %) and MG guided wire localisation (20.66 %). However, tag localisation was significantly more likely to fail and require a subsequent wire (0 = 0.0003). Conclusion: While associated with fewer positive margins, tag localisation did not significantly lower re-excision rates and was more likely to fail than wire-guided localisation. Further studies may elucidate its possible benefits in select patients.

关键词： Book reviews   Radiofrequency identification   Standards   Backscatter   Antennas   Research and development   Wireless power transmission   UHF technology   Software radio   Radio communication   Internet of Things  

摘要： Presents reviews for the following list of books, Radio Frequency Identification Engineering: How to Engineer an RFID Reader.

关键词： RFID technology   field-programmable gate array   multi-scale code metrics   feature extraction network   code metric granularity  

摘要： This paper proposes a multi-scale software vulnerability detection model using Radio Frequency Identification (RFID) target recognition technology and Field-Programmable Gate Array (FPGA) hardware design. The systematic analysis of RFID systems and FPGA architectures provides the foundation for constructing robust security solutions against code-based threats. The Scalable Vulnerability Detection Method (SVDM) is developed leveraging multi-scale code metrics and deep feature extraction techniques. The evaluations of vulnerability datasets CWE-119 and CWE-399 demonstrated over 84% accuracy, recall, and F1 score. The precision, recall, and F1 score of the CWE-399 vulnerability dataset in the SVDM were 85.15%, 85.12%, and 84.79%, respectively, while the values of the CWE-199 dataset were 83.12%, 82.16%, and 82.38%, respectively. Compared with existing methods, the functionality of SVDM was further highlighted. This research provides an extensible and adaptable framework for identifying security vulnerabilities with both hardware and software techniques. It can optimize threat detection, risk analysis, and system integrity across software development and operation life cycles, providing technical reference and scientific support for the security protection of software vulnerabilities, while promoting the development of industries such as intelligent monitoring and traceability.

关键词： 物联网   智能交通系统   射频识别   流量监控   信号控制   5G通信  

摘要： 随着城市化进程的加速，交通拥堵、事故频发和环境污染等问题愈发突出，而物联网技术，尤其是射频识别（RFID）技术，为智能交通系统（ITS）的发展提供了新的解决方案。为此，提出基于RFID的物联网智能交通系统设计方案，旨在通过实时监测交通状况、优化交通流量、提高交通安全性来解决上述问题。系统采用分层架构，包括感知层、网络层、处理层和应用层，集成了RFID、传感器、5G通信、物联网等技术。该系统能够实现交通运行状况监测、交通事故报警、交通信号控制等功能，为交通管理提供了多维度的统计分析与决策支撑，还能够实现交通信号优化控制、公交及特殊车辆信号优先控制等智能交通控制功能。综上所述，该基于RFID的物联网智能交通系统设计方案能够有效应对城市交通管理的挑战，提升交通运行效率和服务质量，为城市交通的可持续发展做出贡献。

关键词： 无线射频   螺栓松动检测   传感器   微带贴片天线   谐振频率   反向散射信号强度   超高频   电子标签  

摘要： 在螺栓松动检测领域，人工检测存在效率低和准确度不足等问题，依赖常规传感器的检测通过线缆进行供电和数据采集，安装与维护成本较高。针对上述问题，文中基于无线射频识别技术设计了一种用于螺栓松动检测的超高频电子标签。当螺栓松动时，安装于螺母和被连接件上的标签天线变形，天线变形引起天线谐振频率变化，从而使标签反向散射信号强度发生改变，通过远程读取反向散射信号强度变化实现了对螺栓松动状态的无线监测。实验结果表明，当螺栓松动角度增大时，标签的反向散射信号强度呈线性下降趋势，二者之间的相关性高达0.978 74，证实了该检测方案在0°至8°的松动角度范围内能够实现螺栓松动状态的精准识别。

关键词： RFID technology   Logistics delivery   Tracking of goods   Path optimization   Investment feasibility  

摘要： The rapid growth of logistics demand has made improving operational efficiency and service level an important development goal for logistics enterprises. Radio frequency identification technology has great potential in logistics processes such as cargo tracking and path optimization due to its real-time and efficient nature. However, existing research mostly focuses on the theoretical application of technology, lacking support for investment feasibility analysis and system optimization strategies based on practical scenarios. Therefore, this study proposes a logistics optimization solution that combines RFID technology with two core modules: cargo tracking and path optimization. The results demonstrated that the cargo tracking scheme enhanced the tracking accuracy to 98.7%, reduced the cargo circulation time by 22.1%, and significantly reduced the cargo circulation error rate. The path optimization scheme improved delivery efficiency by 23.5% and reduced transportation costs by 18.2% by reducing ineffective travel distance. Further analysis showed that after the deployment of the plan, the overall logistics operation efficiency has increased by 21.8%, and the warehousing turnover rate has increased by 19.4%. In addition, this study further explored the key challenges in the implementation of radio frequency identification technology and proposed targeted optimization strategies. This study provides important reference for logistics enterprises in investment decision-making and application promotion of radio frequency identification technology, which helps to improve the intelligence level of logistics systems and reduce operating costs.

关键词： Agility   AI   Big data   Blockchain and information system   Digital twin   ICT   IoT   IT   Resilience   RFID   Supply chain   Uncertainty   Vulnerability  

摘要： Purpose – The purpose of this study is to explore the opportunities provided by information technologies (IT) to improve supply chain processes. It aims to conduct a systematic literature review (SLR) to identify research areas that require further exploration to leverage IT and enhance supply chain ***/methodology/approach – This study employs a systematic literature review methodology to analyse a set of 177 publications, including journal papers, conference papers, periodicals, theses, and books published between 2013 and 2023. Thematic synthesis was chosen as the most appropriate approach to amalgamate the findings obtained from the systematic literature review conducted in the study. This method involves interpreting thematic information and facilitating the development of a comprehensive understanding of the literature being *** – The literature review reveals that certain information technologies, such as the Internet of Things (IoT), Big Data, artificial intelligence (AI), Blockchain, information and communications technology (ICT) and information sharing, offer significant potential for improving supply chain processes. However, the application of these technologies in the field of supply chain is currently under-researched. The findings highlight the need for further exploration of these technologies and their impact on supply chain redesign and ***/value – This study contributes to the existing body of knowledge by providing a systematic overview of the potential benefits of IT in the context of supply chains. It emphasises the under-researched nature of specific technologies and their potential to support organisations in improving their supply chain processes. The originality of this study lies in its comprehensive analysis of relevant literature and its identification of research gaps that need to be addressed in future studies. © 2024 Moayad Al-Talib, Walid Al-Saad, Anan Alzoubi and Anthony I. Anosike