检索结果-南通市图书馆

Improving Thyroid Disorder Diagnosis via Ensemble Stacking and Bidirectional Feature Selection

Computers, Materials & Continua 2024年第3期78卷 4225-4241页

作者： Muhammad Armghan Latif Zohaib Mushtaq Saad Arif Sara Rehman Muhammad Farrukh Qureshi Nagwan Abdel Samee Maali Alabdulhafith Yeong Hyeon Gu Mohammed A.Al-masni Department of Computer and Information System Cleveland State UniversityOhio44115USA Department of electrical Electronics and Computer SystemsCollege of Engineering and TechnologyUniversity of SargodhaSargodha40100Pakistan Department of Mechanical engineering College of EngineeringKing Faisal UniversityAl-Ahsa31982Saudi Arabia Department of Biomedical engineering Riphah International UniversityIslamabad44000Pakistan Department of electrical engineering Riphah International UniversityIslamabad44000Pakistan Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Department of Artificial Intelligence College of Software and Convergence TechnologySejong UniversitySeoul05006Korea

Thyroid disorders represent a significant global health challenge with hypothyroidism and hyperthyroidism as two common conditions arising from dysfunction in the thyroid *** and timely diagnosis of these disorders is crucial for effective treatment and patient *** research introduces a comprehensive approach to improve the accuracy of thyroid disorder diagnosis through the integration of ensemble stacking and advanced feature selection *** forward feature selection,sequential backward feature elimination,and bidirectional feature elimination are investigated in this *** ensemble learning,random forest,adaptive boosting,and bagging classifiers are *** effectiveness of these techniques is evaluated using two different datasets obtained from the University of California Irvine-Machine Learning Repository,both of which undergo preprocessing steps,including outlier removal,addressing missing data,data cleansing,and feature *** experimentation demonstrates the remarkable success of proposed ensemble stacking and bidirectional feature elimination achieving 100%and 99.86%accuracy in identifying hyperthyroidism and hypothyroidism,*** enhancing detection accuracy,the ensemble stacking model also demonstrated a streamlined computational complexity which is pivotal for practical medical *** significantly outperformed existing studies with similar objectives underscoring the viability and effectiveness of the proposed *** research offers an innovative perspective and sets the platform for improved thyroid disorder diagnosis with broader implications for healthcare and patient well-being.

关键词： Ensemble learning random forests boosting dimensionality reduction machine learning smart healthcare computer aided diagnosis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Low-frequency oscillation of train-network system considering traction power supply mode

引用

Railway engineering Science 2024年第2期32卷 244-256页

作者： Yuchen Liu Xiaoqin Lyu Mingyuan Chang Qiqi Yang School of electrical engineering Southwest Jiaotong UniversityChengdu 610031China

The low-frequency oscillation(LFO)has occurred in the train-network system due to the introduction of the power electronics of the *** modeling and analyzing method in current researches based on electrified railway unilateral power supply system are not suitable for the LFO analysis in a bilateral power supply system,where the trains are supplied by two traction *** this work,based on the single-input and single-output impedance model of China CRH5 trains,the node admittance matrices of the train-network system both in unilateral and bilateral power supply modes are established,including three-phase power grid,traction transformers and traction *** the modal analysis is used to study the oscillation modes and propagation characteristics of the unilateral and bilateral power supply ***,the influence of the equivalent inductance of the power grid,the length of the transmission line,and the length of the traction network are analyzed on the critical oscillation mode of the bilateral power supply ***,the theoretical analysis results are verified by the time-domain simulation model in MATLAB/Simulink.

关键词： Low-frequency oscillation Train-network system Modal analysis Bilateral power supply Participation factor

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Interdigitated terahertz metamaterial sensors:design with the dielectric perturbation theory

引用

Photonics Research 2024年第6期12卷 1115-1128页

作者： LEI CAO FANQI MENG ESRAÖZDEMIR YANNIK LOTH MERLE RICHTER ANNA KATHARINA WIGGER MAIRA BEATRIZ PÉREZ SOSA ALAA JABBAR JUMAAH SHIHAB AL-DAFFAIE PETER HARING BOLÍVAR HARTMUT G.ROSKOS State Key Laboratory of Advanced Electromagnetic Technology Huazhong University of Science and TechnologyWuhan 430074China Physikalisches Institut Johann Wolfgang Goethe-UniversitätFrankfurt am MainGermany University of Siegen Institute for High Frequency and Quantum ElectronicsSiegenGermany Department of electrical engineering Eindhoven University of Technology5612 AE EindhovenThe Netherlands

Designing terahertz sensors for highly sensitive detection of nanoscale thin films and a few biomolecules poses a substantial challenge but is crucial for unlocking their full potential in scientific research and advanced *** work presents a strategy for optimizing metamaterial sensors in detecting small quantities of dielectric *** amount of frequency shift depends on intrinsic properties(electric field distribution,Q-factor,and mode volume)of the bare cavity as well as the overlap volume of its high-electric-field zone(s)and the *** by the simplified dielectric perturbation theory,interdigitated electric split-ring resonators(ID-eSRRs)are devised to significantly enhance the detection sensitivity compared with eSRRs without interdigitated ***-eSRR’s fin-gers redistribute the electric field,creating strongly localized enhancements,which boost analyte *** periodic change of the inherent antiphase electric field reduces radiation loss,leading to a higher *** with ID-eSRR sensors operating at around 300 GHz demonstrate a remarkable 33.5 GHz frequency shift upon depositing a 150 nm SiO_(2)layer as an analyte simulant,with a figure of merit improvement of over 50 times compared with structures without interdigitated *** rational design offers a promising avenue for highly sensitive detection of thin films and trace biomolecules.

关键词： dielectric perturbation theory

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open-Source Software Defined Networking Controllers:State-of-the-Art,Challenges and Solutions for Future Network Providers

引用

Computers, Materials & Continua 2024年第7期80卷 747-800页

作者： Johari Abdul Rahim Rosdiadee Nordin Oluwatosin Ahmed Amodu Technology Strategy and Fundamental Planning(TSFP) Telekom MalaysiaCyberjayaSelangor60000Malaysia Department of engineering School of Engineering and TechnologySunway University5Jalan UniversitiBandar SunwaySelangor47500Malaysia Department of electrical Electronics&Systems EngineeringUniversiti Kebangsaan MalaysiaUKM BangiSelangor43600Malaysia Information and Communication engineering Department Elizade UniversityP.M.B.002Ilara-Mokin340271Nigeria

Software Defined Networking(SDN)is programmable by separation of forwarding control through the centralization of the *** controller plays the role of the‘brain’that dictates the intelligent part of SDN *** versions of SDN controllers exist as a response to the diverse demands and functions expected of *** are several SDN controllers available in the open market besides a large number of commercial controllers;some are developed tomeet carrier-grade service levels and one of the recent trends in open-source SDN controllers is the Open Network Operating System(ONOS).This paper presents a comparative study between open source SDN controllers,which are known as Network Controller Platform(NOX),Python-based Network Controller(POX),component-based SDN framework(Ryu),Java-based OpenFlow controller(Floodlight),OpenDayLight(ODL)and *** discussion is further extended into ONOS architecture,as well as,the evolution of ONOS *** article will review use cases based on ONOS controllers in several application ***,the opportunities and challenges of open source SDN controllers will be discussed,exploring carriergrade ONOS for future real-world deployments,ONOS unique features and identifying the suitable choice of SDN controller for service *** addition,we attempt to provide answers to several critical questions relating to the implications of the open-source nature of SDN controllers regarding vendor lock-in,interoperability,and standards compliance,Similarly,real-world use cases of organizations using open-source SDN are highlighted and how the open-source community contributes to the development of SDN ***,challenges faced by open-source projects,and considerations when choosing an open-source SDN controller are *** the role of Artificial Intelligence(AI)and Machine Learning(ML)in the evolution of open-source SDN controllers in light of recent research is *** ad

关键词： ONOS open source software SDN software defined networking

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Sora for foundation robots with parallel intelligence:three world models,three robotic systems

引用

Frontiers of Information Technology & Electronic engineering 2024年第7期25卷 917-923页

作者： Lili FAN Chao GUO Yonglin TIAN Hui ZHANG Jun ZHANG Fei-Yue WANG School of Information and electronics Beijing Institute of TechnologyBeijing 100081China State Key Laboratory for Management and Control of Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China School of Computer and Information Technology Beijing Jiaotong UniversityBeijing 100044China School of electrical engineering Wuhan UniversityWuhan 430072China

This paper outlines the initial steps and basic framework for developing foundation/infrastructure robots/robotics based on foundation models and parallel intelligence,as well as the potential applications of new art... 详细信息

关键词： artificial foundation intelligence

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Dual Fuzzy-Sugeno Method to Enhance Power Quality Performance using a Single-phase Dual UPQC-Dual PV Without DC-Link Capacitor

引用

Protection and Control of Modern Power Systems 2024年第1期9卷 133-153页

作者： Amirullah Amirullah Adiananda Adiananda Depantment of electrical engineering Universitas Bhayangkara SuabayaSurabaya60231Indonesia University of Bhayangkara Surabaya

Unified power quality conditioner(UPQC)is a power electronics device consisting of a series active filter(Se AF)and a shunt active filter(Sh-AF)connected in parallel through a DC-link circuit to overcome power quality problems,ie.,voltage sag,voltage swell,and non-linear(NL)*** weakuess of the UPQC is that it cannot function normally if the Se AF and/or Sb-AF fail,and the devices are uable to transfer active power to the load in the event of an interrupt voltage at the *** paper proposes a novel configuration of a dual UPQC supplied by a dual photovoltaic PV),hereinafter referred to as 2UPQC2PV,to improve the power quality performance of a single-pbase 220 V/50 Hz distribution *** 2UPQC 2PV configuration is proposed to anticipate the possible failure of both inverters in one of the UPQC *** PV array replaces the DC-link capacitor to maintain its voltage counected to the DC-link of the UPQC constant while at the same time supplying active power to the load *** interruption *** dual-fuzzy Sugeno(dualFS)method is used to overcome the weakuess of the dual-proportioual-integral(dual-PD)control in determining the optimum paramneters of proportional and integral *** are three disturbances simulated in each-of 2UPQC-2PV and 1UPQC-1PV using dual-FS and dualPI,i.e,Case(S Sag-NL),Case 2(S-Swell-NL),and Case 3(S-Inter-NL).Each UPQC-PV combination using FS control is compared with PI control resulting in a total of sir *** 2UPQC-2PV configuration with dual-PI and dual-FS controls,in the three fault cases,is able to produce higher voltage changes than the 1UPQC 1PV *** the 2UPQC-2PV configuration in the three fault cases,Dual-FS control is able to produce lower THDs of load voltage and source current,than the dual-PI control,while meetings the limits of IEEE 519 *** Case 3,the configuration of 2UPQC-2PV using the dual-FS method,is capable of delivering the active power of the load close to that in

关键词： UPQC inverter Dual

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

High-sensitive state perception method for inverter-fed machine turn insulation based on FrFT-Mel

引用

Global Energy Interconnection 2024年第2期7卷 155-165页

作者： Ruitian Fan Xing Lei Tao Jia Menglong Qin Hao Li Dawei Xiang College of electrical Power engineering Shanghai University of Electric PowerShanghai 200090P.R.China State Grid Shanghai Municipal Electric Power Company Shanghai 200437P.R.China State Grid Technology College Shandong 250002P.R.China College of electronics and Information engineering Tongji UniversityShanghai 201804P.R.China

Amidst the swift advancement of new power systems and electric vehicles,inverter-fed machines have progressively materialized as a pivotal apparatus for efficient energy *** winding turn insulation failure is the root cause of inverter-fed machine *** online monitoring of turn insulation health can detect potential safety risks promptly,but faces the challenge of weak characteristics of turn insulation *** study proposes an innovative method to evaluate the turn insulation state of inverter-fed machines by utilizing the fractional Fourier transform with a Mel filter(FrFT-Mel).First,the sensitivity of the high-frequency(HF)switching oscillation current to variations in turn insulation was analyzed within the fractional ***,an improved Mel filter is introduced,and its structure and parameters are specifically designed based on the features intrinsic to the common-mode impedance resonance point of the electrical ***,an evaluation index was proposed for the turn insulation state of inverter-fed *** results on a 3kW permanent magnet synchronous machine(PMSM)demonstrate that the proposed FrFT-Mel method significantly enhances the sensitivity of turn insulation state perception by approximately five times,compared to the traditional Fourier transform method.

关键词： State perception Turn insulation Switching oscillation Fractional Fourier transform Mel filter

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Deep Transfer Learning Techniques in Intrusion Detection System-Internet of Vehicles: A State-of-the-Art Review

引用

Computers, Materials & Continua 2024年第8期80卷 2785-2813页

作者： Wufei Wu Javad Hassannataj Joloudari Senthil Kumar Jagatheesaperumal Kandala N.V.P.SRajesh Silvia Gaftandzhieva Sadiq Hussain Rahimullah Rabih Najibullah Haqjoo Mobeen Nazar Hamed Vahdat-Nejad Rositsa Doneva School of Information engineering Nanchang UniversityNanchang330031China Department of Computer engineering Technical and Vocational University(TVU)Tehran***Iran Department of Computer engineering University of BirjandBirjand***Iran Department of Computer engineering Babol BranchIslamic Azad UniversityBabol***Iran Department of electronics&Communication engineering Mepco Schlenk Engineering CollegeSivakasi626005India School of electronics engineering VIT-AP UniversityNear Vijayawada522237India Faculty of Mathematics and Informatics University of Plovdiv Paisii HilendarskiPlovdiv4000Bulgaria Examination Branch Dibrugarh UniversityDibrugarh786004India Department of Computer engineering Faculty of EngineeringUniversity of BirjandBirjand***Iran Faculty of electrical and Computer engineering University of BirjandBirjand***Iran Malaysian Institute of Information Technology Universiti Kuala LumpurKuala Lumpur50250Malaysia Faculty of Physics and Technology University of Plovdiv Paisii HilendarskiPlovdiv4000Bulgaria

The high performance of IoT technology in transportation networks has led to the increasing adoption of Internet of Vehicles(IoV)*** functional advantages of IoV include online communication services,accident prevention,cost reduction,and enhanced traffic *** these benefits,IoV technology is susceptible to cyber-attacks,which can exploit vulnerabilities in the vehicle network,leading to perturbations,disturbances,non-recognition of traffic signs,accidents,and vehicle *** paper reviews the state-of-the-art achievements and developments in applying Deep Transfer Learning(DTL)models for Intrusion Detection Systems in the Internet of Vehicles(IDS-IoV)based on anomaly ***-IoV leverages anomaly detection through machine learning and DTL techniques to mitigate the risks posed by *** systems can autonomously create specific models based on network data to differentiate between regular traffic and *** these techniques,transfer learning models are particularly promising due to their efficacy with tagged data,reduced training time,lower memory usage,and decreased computational *** evaluate DTL models against criteria including the ability to transfer knowledge,detection rate,accurate analysis of complex data,and *** review highlights the significant progress made in the field,showcasing how DTL models enhance the performance and reliability of IDS-IoV *** examining recent advancements,we provide insights into how DTL can effectively address cyber-attack challenges in IoV environments,ensuring safer and more efficient transportation networks.

关键词： Cyber-attacks internet of things internet of vehicles intrusion detection system

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Towards the performance limit of catenary meta-optics via field-driven optimization

引用

Opto-Electronic Advances 2024年第5期7卷 33-42页

作者： Siran Chen Yingli Ha Fei Zhang Mingbo Pu Hanlin Bao Mingfeng Xu Yinghui Guo Yue Shen Xiaoliang Ma Xiong Li Xiangang Luo National Key Laboratory of Optical Field Manipulation Science and Technology Chinese Academy of SciencesChengdu 610209China State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-engineering Institute of Optics and ElectronicsChinese Academy of SciencesChengdu 610209China College of Materials Science and Opto-Electronic Technology University of Chinese Academy of SciencesBeijing 100049China Research Center on Vector Optical Fields Institute of Optics and ElectronicsChinese Academy of SciencesChengdu 610209China Department of electrical and Computer engineering University of California Los Angeles(UCLA)Los AngelesCalifornia 90095USA

Catenary optics enables metasurfaces with higher efficiency and wider bandwidth,and is highly anticipated in the imaging system,super-resolution lithography,and broadband ***,the periodic boundary approximation without considering aperiodic electromagnetic crosstalk poses challenges for catenary optical devices to reach their performance ***,perfect control of both local geometric and propagation phases is realized through field-driven optimization,in which the field distribution is calculated under real boundary *** from other optimization methods requiring a mass of iterations,the proposed design method requires less than ten iterations to get the efficiency close to the optimal *** on the library of shape-optimized catenary structures,centimeter-scale devices can be designed in ten seconds,with the performance improved by ~15%.Furthermore,this method has the ability to extend catenary-like continuous structures to arbitrary polarization,including both linear and elliptical polarizations,which is difficult to achieve with traditional design *** provides a way for the development of catenary optics and serves as a potent tool for constructing high-performance optical devices.

关键词： catenary optics catenary structures field-driven optimization

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Study on Image Recognition Algorithm for Residual Snow and Ice on Photovoltaic Modules

引用

Energy engineering 2024年第4期121卷 895-911页

作者： Yongcan Zhu JiawenWang Ye Zhang Long Zhao Botao Jiang Xinbo Huang College of electronics and Information Xi’an Polytechnic UniversityXi’an710048China Xi’an Key Laboratory of Interconnected Sensing and Intelligent Diagnosis for electrical Equipment Xi’an710048China

The accumulation of snow and ice on PV modules can have a detrimental impact on power generation,leading to reduced efficiency for prolonged ***,it becomes imperative to develop an intelligent system capable of accurately assessing the extent of snow and ice coverage on PV *** address this issue,the article proposes an innovative ice and snow recognition algorithm that effectively segments the ice and snow areas within the collected ***,the algorithm incorporates an analysis of the morphological characteristics of ice and snow coverage on PV modules,allowing for the establishment of a residual ice and snow recognition *** process utilizes both the external ellipse method and the pixel statistical method to refine the identification *** effectiveness of the proposed algorithm is validated through extensive testing with isolated and continuous snow area *** results demonstrate the algorithm’s accuracy and reliability in identifying and quantifying residual snow and ice on PV *** conclusion,this research presents a valuable method for accurately detecting and quantifying snow and ice coverage on PV *** breakthrough is of utmost significance for PV power plants,as it enables predictions of power generation efficiency and facilitates efficient PV maintenance during the challenging winter conditions characterized by snow and *** proactively managing snow and ice coverage,PV power plants can optimize energy production and minimize downtime,ensuring a sustainable and reliable renewable energy supply.

关键词： Photovoltaic(PV)module residual snow and ice snow detection feature extraction image processing

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：