Measurement Sensors最新文献

{"title":"Addressing output ripples in low-power CMOS-based multistage DC-DC boost converters for self-powered electrochemical sensors applications","authors":"Ahmat Abdel Wahid,&nbsp;Sameh O. Abdellatif","doi":"10.1016/j.measen.2024.101396","DOIUrl":"10.1016/j.measen.2024.101396","url":null,"abstract":"<div><div>In modern electronic systems, the DC-DC converter plays a pivotal role by facilitating the conversion of direct current (DC) from one voltage level to another. Given the diverse voltage requirements of contemporary chips, a single chip may encompass multiple circuitry groupings, each necessitating specific voltage levels for optimal functionality. To address this need, voltage converters are essential, whether it involves increasing the voltage (Boost converter), decreasing the voltage level (Buck converter), or performing both functions (Buck-boost converter). This paper presents a novel multistage DC-DC converter designed to minimize voltage ripples. The proposed three-stage DC-DC converter is supplied with a 1.5-V input and achieves a four-boost ratio. The cascaded architecture integrates switching capacitors and a gyrator, complemented by a terminating low-pass filter, resulting in a minimal voltage ripple of 0.0003 % relative to the maximum output voltage. Notably, integrating the gyrator enables an inductorless CMOS-based architecture, significantly reducing layout area to 30 × 140 μm². Furthermore, the converter's transient response was simulated, yielding a response time of 90 ms.</div></div>","PeriodicalId":34311,"journal":{"name":"Measurement Sensors","volume":"36 ","pages":"Article 101396"},"PeriodicalIF":0.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of big data analysis resources supported by XGBoost algorithm: Comprehensive analysis of industry 5.0 and ESG performance","authors":"Qing Su ,&nbsp;Lifeng Chen ,&nbsp;Limin Qian","doi":"10.1016/j.measen.2024.101310","DOIUrl":"10.1016/j.measen.2024.101310","url":null,"abstract":"<div><div>To enable state-owned enterprises in Industry 5.0 to better carry out M&amp;A activities, it is important and necessary to provide early warning of M&amp;A risks, which directly affects the interests of both parties and even affects the effectiveness of state-owned enterprise reform. The author proposes the optimization of big data analysis resources supported by the XGBoost algorithm: a comprehensive analysis of Industry 5.0 and ESG performance. Design a comprehensive evaluation system to measure the M&amp;A risk of state-owned listed companies. Using Python programming language to achieve data crawling and processing. Build an early warning model using the XGBoost algorithm. To further evaluate the effectiveness of the early warning model, comparative experiments were conducted. Using multiple linear regression models to study the significant factors of merger and acquisition risk. The experimental results show that the prediction accuracy based on the XGBoost algorithm is 80 %, which performs the best among all models and has stronger reliability and applicability.</div></div><div><h3>Conclusion</h3><div>The return on investment capital, operating profit margin, and net profit from paid consideration are more important and effective in predicting merger and acquisition risks; The total asset turnover rate, return on investment capital, equity balance, and audit quality are more conducive to suppressing merger and acquisition risks.</div></div>","PeriodicalId":34311,"journal":{"name":"Measurement Sensors","volume":"36 ","pages":"Article 101310"},"PeriodicalIF":0.0,"publicationDate":"2024-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142552183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Image sensor fusion for multimodal biometric recognition in mobile devices","authors":"J. Bhuvana ,&nbsp;Amit Barve ,&nbsp;Shah Pradeep Kumar ,&nbsp;Sukanya Dikshit","doi":"10.1016/j.measen.2024.101309","DOIUrl":"10.1016/j.measen.2024.101309","url":null,"abstract":"<div><h3>Aim</h3><div>Multimodal biometric recognition authenticates or identifies someone using various biometric features or modalities. Multimodal biometric systems use different biometric qualities to improve the recognition process's accuracy, security, and reliability rather than depending solely on one biometric property, such as fingerprint or facial recognition. Sensor fusion techniques can merge data from several biometric sensors, including fingerprint scanners and facial recognition cameras, to boost the accuracy and dependability of biometric authentication in the context of multimodal biometric recognition in mobile devices. The process of combining data from numerous image sensors to enhance a system's overall performance is known as image sensor fusion.</div></div><div><h3>Challenges</h3><div>Challenges includeintegration difficulties in achieving accurate and secure multimodal biometric recognition on mobile devices. The study goal was Image sensor fusion for multimodal biometric recognition in mobile devices.</div></div><div><h3>Methodology</h3><div>The study uses a specially made database of 450 face photos roughly 450 fingerprints.Weiner filter (WF) is used for preparing data. Battle Royale optimized with deep convolutional neural network (BRO-DCNN) is proposed to improve the overall performance of fingerprint and facial information.</div></div><div><h3>Findings</h3><div>Accuracy, sensitivity, specificity, and precision are used to measure the effectiveness of the proposed BRO-DCNN system. Study results show that BRO-MLANN solves the many characteristics of smart cities and is an efficient approach compared to other current methods in recognition rate, 98 % accuracy, 99 % precision, 96 % specificity, and 94 % sensitivity.</div></div>","PeriodicalId":34311,"journal":{"name":"Measurement Sensors","volume":"36 ","pages":"Article 101309"},"PeriodicalIF":0.0,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142528480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental void fraction measurement approach of small channel two-phase flow","authors":"Alireza Abedini ,&nbsp;Ali Nouri Borujerdi ,&nbsp;Mohammad Najafi ,&nbsp;Aminreza Noghrehabadi","doi":"10.1016/j.measen.2024.101306","DOIUrl":"10.1016/j.measen.2024.101306","url":null,"abstract":"<div><div>This investigation presents a novel experimental approach for assessing void fraction parameters in two-phase flows within microchannels. The study critiques the conventional impedance methods that utilize alternating current (AC) for void fraction measurements, highlighting the inherent drawbacks such as ground capacitance interference and non-uniform current distribution. To circumvent these issues, the research introduces the use of direct current (DC), which ensures a homogeneous distribution across the conductor's cross-section, as a more reliable alternative. Termed the \"Direct Impedance Method,\" this technique employs DC to enhance the accuracy of void fraction measurements. The study explores various geometric configurations of full-ring and half-ring electrodes, both vertical and horizontal, within a microchannel of 500 μm diameter. An empirical formula is derived to calculate the void fraction from the electrical data obtained. High-speed imaging at 4000 frames per second supplements the method by providing visual confirmation of the flow patterns. The comparative analysis of the direct impedance method and image processing using the homogeneous theoretical model reveals a deviation of approximately 2 %–10 % for the slug and annular flow pattern. In contrast, the deviation is more for the bubble pattern. The results affirm that the Direct Impedance Method is a cost-effective and reasonably precise technique for small-channel applications. Its accuracy is inversely proportional to the channel diameter, rendering it unsuitable for channels larger than 2 mm. The method's low construction cost further enhances its practical appeal.</div></div>","PeriodicalId":34311,"journal":{"name":"Measurement Sensors","volume":"36 ","pages":"Article 101306"},"PeriodicalIF":0.0,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142428236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crystal structure, optical, photoluminescence, Raman, and magnetic properties for Sm-doped Cr-Mg-Bi ferrites","authors":"Banothu Naresh,&nbsp;Bhukya Venkatesh,&nbsp;J. Laxman Naik","doi":"10.1016/j.measen.2024.101307","DOIUrl":"10.1016/j.measen.2024.101307","url":null,"abstract":"<div><div>The current work,A series of rare earth Sm³⁺ ion substituted Cr-Mg-Bi ferrites Cr_0.7Mg_0.2Bi_0.1Sm_xFe_2-xO₄ (x = 0.00, 0.02, 0.04, and 0.06) have beensynthesized by thesol-gel auto-combustion method. The XRD, FESEM, HRTEM,UV–Vis, FTIR, Raman spectroscopy, Photo Luminesce and Magnetic Properties analysis have been used to investigate structural, morphological, optical, Raman spectroscopy, Photo Luminesce and Magnetic Properties. Every sample contains a single-phase spinel structure, as confirmed by XRD.The substitution of Sm³⁺ ions is found to increase the lattice parameter from 8.258 to 8.248 Å.A monotone diffraction peak (311) is visible near small angles of degrees (35.33–35.13). The Debye-Scherrer equation, the nanoparticles' crystallite size ranges from 35.357 to 54.778 nm.FE-SEMs reveal a spherical grain that groups and has a porous form, with particles 38.13–53.28 nmin size.HR-TEM micrographs illustrate spherical morphology and their average particle size decreases from 55.32 to 65.42 nm. The selected area electron diffraction (SAED) pattern confirms the crystal planes which were revealed from XRD calculations.The spinel structure was confirmed by FTIR spectroscopy, which found 414 cm⁻¹ and 516 cm⁻¹ vibrational band at the octahedral and tetrahedral sites.As the concentration of Sm³⁺ rises, the direct and indirect band gap energy values determined from UV–Vis show an increase and decrease.The generated NPs' semiconducting nature is confirmed by the strong correlation between the g-value and particle size change.Photoluminescence (PL) investigation shows that all processed samples have four bands.(i) peak centered at 412 nm, which is near-band edge emission and corresponds to the ultraviolet (UV) band,(ii) The violet band has a high-intensity peak at 434 nm,(iii) The blue band is related to a low-intensity, sharp peak located at 466 nm, and (iv) A broad peak at 502 nm with a very low intensity distinguishes the green band.The Raman spectroscopy investigation revealed that the CMBSF nanoparticles had a mixed spinel structure. The magnetic investigation shows that when the Sm content of ferrites increases, saturation magnetization drops from 39.86 to 33.16 emu/g.The sample's coercivity (Hc) increases from 16.06 to 21.90 KOe with Sm substitution.</div></div>","PeriodicalId":34311,"journal":{"name":"Measurement Sensors","volume":"36 ","pages":"Article 101307"},"PeriodicalIF":0.0,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142357451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of improved fish school algorithm in variable frequency speed control system","authors":"Shanshan Wu ,&nbsp;Letao Yu","doi":"10.1016/j.measen.2024.101308","DOIUrl":"10.1016/j.measen.2024.101308","url":null,"abstract":"<div><div>In order to solve the problems of long adjustment time and poor stability of the commonly used speed current variable frequency negative feedback speed control system in engineering, the author proposes an improved fish school algorithm application method in variable frequency speed control systems. A fish swarm algorithm optimized based on the arena method is applied to a variable frequency speed control system, and the optimization algorithm is applied to the speed control system to screen the PI parameters that meet the requirements of the speed control system. The simulation results show that compared with manual parameter tuning, the controller parameters optimized by the improved fish school algorithm have better control performance. In the absence of overshoot starting, the starting time was shortened by 0.21s, and the system response speed was improved. When a sudden load of 6 N m is applied, the speed drop is reduced by 3 r · min⁻¹, and the recovery time is shortened by 0.15 s, resulting in stronger anti-interference performance of the system. Conclusion: The new algorithm shortens the control time and improves the robustness of the system.</div></div>","PeriodicalId":34311,"journal":{"name":"Measurement Sensors","volume":"36 ","pages":"Article 101308"},"PeriodicalIF":0.0,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142428316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing Wireless Sensor Network lifetime through hierarchical chain-based routing and horizontal network partitioning techniques","authors":"V.Rama Krishna,&nbsp;Vuppala Sukanya,&nbsp;Mohd Abdul Hameed","doi":"10.1016/j.measen.2024.101300","DOIUrl":"10.1016/j.measen.2024.101300","url":null,"abstract":"<div><div>The efficient use of energy is a critical aspect in Wireless Sensor Networks (WSNs) to prolong the network's lifespan. Investigating routing in WSNs requires considering the effective establishment of chains or clustering methods to optimize the network. The proposed routing technique aims to enhance sensor longevity through different network partitioning methods. The strategy employs the PEGASIS (<strong>P</strong>ower <strong>E</strong>fficient <strong>Ga</strong>thering in <strong>S</strong>ensor <strong>I</strong>nformation <strong>S</strong>ystems) protocol, which uses Prim's Algorithm to adjust the chain structure and is based on hierarchical chain-based routing. To transmit data from working nodes to the base station (BS), horizontal network partitioning techniques called EEPEG-PA-H and EEPEG-PA-V are utilized. The transition occurs when a node's remaining energy is low. This method has the potential to significantly increase the average network lifespan compared to existing routing methods. For example, EEPEG-PA-H improves longevity by 22.7763 % compared to PEGASIS and by 1.259 % compared to EEPEG-PA across various network sizes using senor.</div></div>","PeriodicalId":34311,"journal":{"name":"Measurement Sensors","volume":"36 ","pages":"Article 101300"},"PeriodicalIF":0.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2665917424002769/pdfft?md5=666c582cf9cfbb0bdc075c6f01044818&pid=1-s2.0-S2665917424002769-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142312067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing healthcare with AI: Sustainable AI and IoT-Powered ecosystem for patient aid and interpretability analysis using SHAP","authors":"Biplov Paneru ,&nbsp;Bishwash Paneru ,&nbsp;Sanjog Chhetri Sapkota ,&nbsp;Ramhari Poudyal","doi":"10.1016/j.measen.2024.101305","DOIUrl":"10.1016/j.measen.2024.101305","url":null,"abstract":"<div><p>The healthcare industry has blossomed into one of the most pivotal and technologically advanced sectors in the past decade. Individuals grapple with the peril of untimely demise from diverse ailments as patients suffer from delayed treatment. The paramount objective is to forge a dependable patient care system utilizing the Internet of Things (IoT), enabling physicians to monitor patients' well-being within medical facilities or even the confines of their homes. The system aids in tracking the patient's SpO2 level, body temperature, pulse rate (beats per minute), room temperature, and humidity, then trains the data with machine learning algorithms for the patient and finally monitors it through the Blynk IoT system. The cloud-stored data can be harnessed to ascertain and supervise one's health and predict forthcoming perils. This study unveils an efficacious decision-making model custom-tailored for Internet of Things (IoT) ventures, and the proposed trained algorithm satiates these requirements, offering efficiency and precision, rendering it appropriate for numerous IoT applications. Finally, the Shapley Additive Explanations (SHAP) is used here for finding out the most influential parameters, and Explainable AI (XAI) is utilized with the help of SHAP values for enhanced information on affecting parameters. The SVC model's hyperparameter is properly adjusted, yielding a testing accuracy of 98.83 % and a training accuracy of 98.71 %. On cross-validation, the lightweight Sklearn model achieved a mean accuracy of almost 99 %. And with a SHAP weightage magnitude of 1.38, 0.91, and 0.44 for Class ‘Good’, Class ‘Poor’, and Class ‘Bad’, respectively, patients SpO2 level is the most significant feature.</p></div>","PeriodicalId":34311,"journal":{"name":"Measurement Sensors","volume":"36 ","pages":"Article 101305"},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2665917424002812/pdfft?md5=a90409f8b763c709633643cb47b4534e&pid=1-s2.0-S2665917424002812-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142233745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative analysis of Vedic multiplier using Vedic sutras with existing multipliers in biomedical application","authors":"R. Karthi Kumar ,&nbsp;S.P. Vimal","doi":"10.1016/j.measen.2024.101302","DOIUrl":"10.1016/j.measen.2024.101302","url":null,"abstract":"<div><p>In today's computer world, a lot of real-time applications require rapid processing units. Arithmetic Logic Units (ALU) and Multiply-Accumulate (MAC) are the fundamental parts of these circuits and are necessary for their effective and rapid operation. The most significant prevalent part of digital signal processing devices is multipliers. The multiplier, adder, and registers need to be changed in order to maintain accuracy and increase execution speed, which will improve the performance of the ALU and MAC. The development of greater multipliers is being given priority for application in processors because of the increasing constraints on latency. To accelerate multiplication, it is essential to develop quicker multipliers. Vedic multipliers are preferred over different current expansions due to their low power consumption, fast operation, and efficient use of space. Vedic mathematics-based algorithms are often utilized to build quick, low-power multipliers. In addition to simulation results, this section covers the four sutras of Vedic mathematics: Urdhva Tiryakbhyam, Ekadhikena Purvena, Ekanyunena Purvena, and Nikhilam. Vedic multipliers are also compared to a variety of modern multipliers, including booth, Wallace, and array multipliers. All of the sutras are evaluated according to area, speed, power, propagation delay, and mean relative error (MRE) in the current research. The results of the study will be applied in the biomedical field.</p></div>","PeriodicalId":34311,"journal":{"name":"Measurement Sensors","volume":"36 ","pages":"Article 101302"},"PeriodicalIF":0.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2665917424002782/pdfft?md5=1b9cf104afb2938af8b3a7e22033f9a0&pid=1-s2.0-S2665917424002782-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Urban Odyssey: “Pioneering multimodal routes for Tomorrow's smart cities”","authors":"Vishwas Deep Joshi ,&nbsp;Priya Agarwal ,&nbsp;Ajay Kumar ,&nbsp;Namrata Dogra ,&nbsp;Durgesh Nandan","doi":"10.1016/j.measen.2024.101301","DOIUrl":"10.1016/j.measen.2024.101301","url":null,"abstract":"<div><p>Getting around in modern cities has become a daily puzzle for both residents and travelers. As cities increasingly evolve into complex hubs of innovation and development, the demand for efficient transportation solutions has never been higher. In the multifaceted field of urban transportation, cost-effective and efficient mobility remains a high priority. This paper looks at how cities are planning better ways for people to travel and move within the growing scope of multimodal transportation, a paradigm shift beyond traditional single-mode transit systems. Our approach to improving urban transport revolves around a few key principles: integration, innovation, and collaboration. Integration means bringing together different modes of transportation – like buses, trains, bikes, and even new technologies like ride-sharing services to make it easier for people to switch between them. This transformative approach not only aims to reduce congestion and reduce environmental footprints but also prioritizes user experience while ensuring a harmonious blend of convenience, sustainability, and accessibility. We use new technology and ideas to ensure that travel is easy, quick, and good for the environment. Looking at new trends and examples from around the world, this overview shows how cities are shaping a better future for everyone's daily commute. In this paper, we use Lingo software to solve a numerical example related to multi-modal transportation, demonstrating practical solutions for real-world implementation. Through innovation, we can find creative solutions to urban transportation challenges. Additionally, public transportation enhancements, such as the introduction of synchronized bus routes and electric vehicle charging stations, underline the commitment to sustainability and inclusivity. In the dynamic urban transportation landscape, cities will revolutionize our approach to providing cost-effective and efficient mobility solutions.</p></div>","PeriodicalId":34311,"journal":{"name":"Measurement Sensors","volume":"36 ","pages":"Article 101301"},"PeriodicalIF":0.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2665917424002770/pdfft?md5=38b487ee8978e0f271b745dd13f9d0cd&pid=1-s2.0-S2665917424002770-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142243488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}