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A Novel Proactive AI-Based Agents Framework for an IoE-Based Smart Things Monitoring System with Applications for Smart Vehicles

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Computers, Materials & Continua 2025年第2期82卷 1839-1855页

作者： Meng-Hua Yen Nilamadhab Mishra Win-Jet Luo Chu-En Lin department of Electronic engineering National Chin-Yi University of TechnologyTaichung411030Taiwan School of Computing Science&engineering VIT Bhopal UniversityBhopal466114India department of refrigeration Air-Conditioning and Energy EngineeringNational Chin-Yi University of TechnologyTaichung411030Taiwan

The Internet of Everything(IoE)coupled with Proactive Artificial Intelligence(AI)-Based Learning Agents(PLAs)through a cloud processing system is an idea that connects all computing resources to the Internet,making it possible for these devices to communicate with one *** featured in the IoE include embedding,networking,and sensing *** achieve the intended results of the IoE and ease life for everyone involved,sensing devices and monitoring systems are linked *** IoE is used in several contexts,including intelligent cars’protection,navigation,security,and fuel *** Smart Things Monitoring System(STMS)framework,which has been proposed for early occurrence identification and theft prevention,is discussed in this *** STMS uses technologies based on the IoE and PLAs to continuously and remotely observe,control,and monitor *** STMS is familiar with the platform used by the global positioning system;as a result,the STMS can maintain a real-time record of current vehicle *** information is utilized to locate the vehicle in an accident or *** findings of the STMS system are promising for precisely identifying crashes,evaluating incident severity,and locating vehicles after collisions have ***,we formulate an ad hoc STMS network communication scenario to evaluate the efficacy of data communication by utilizing various network parameters,such as round-trip time(RTT),data packet transmission,data packet reception,and *** our experimentation,we obtained an improved communication efficiency for STMS across multiple PLAs compared to the standard greedy routing and traditional AODV *** framework facilitates adaptable solutions with communication competence by deploying Proactive PLAs in a cloud-connected smart vehicular environment.

关键词： Artificial intelligence(AI) proactive AI-based learning agents(PLA) internet of everything(IoE) smart things monitoring system(STMS) cloud processing system driving monitoring assistance system(MAS) smart vehicles

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Artificial Circulation System Algorithm:A Novel Bio-Inspired Algorithm

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Computer Modeling in engineering & Sciences 2025年第1期142卷 635-663页

作者： NerminÖzcan Semih Utku Tolga Berber department of Biomedical Technologies Dokuz Eylül UniversityIzmir35390Turkey department of Biomedical engineering Iskenderun Technical UniversityIskenderun31200Turkey department of Computer engineering Dokuz Eylül UniversityIzmir35390Turkey department of Statistics and Computer Sciences Karadeniz Technical UniversityTrabzon61080Turkey

Metaheuristics are commonly used in various fields,including real-life problem-solving and engineering appli*** present work introduces a novel metaheuristic algorithm named the Artificial Circulatory System Algorithm(ACSA).The control of the circulatory system inspires it and mimics the behavior of hormonal and neural regulators involved in this *** work initially evaluates the effectiveness of the suggested approach on 16 two-dimensional test functions,identified as classical benchmark *** method was subsequently examined by application to 12 CEC 2022 benchmark problems of different ***,the paper evaluates ACSA in comparison to 64 metaheuristic methods that are derived from different approaches,including evolutionary,human,physics,and ***,a sequence of statistical tests was undertaken to examine the superiority of the suggested algorithm in comparison to the 7 most widely used algorithms in the existing *** results show that the ACSA strategy can quickly reach the global optimum,avoid getting trapped in local optima,and effectively maintain a balance between exploration and *** outperformed 42 algorithms statistically,according to post-hoc *** also outperformed 9 algorithms *** study concludes that ACSA offers competitive solutions in comparison to popüler methods.

关键词： Bio-inspired evolutionary heuristic metaheuristic optimization

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Vibration response of Euler-Bernoulli-damped beam with appendages subjected to a moving mass

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Earthquake engineering and engineering Vibration 2025年第1期24卷 223-234页

作者： Raed AlSaleh Ayman Nasir Nour Atieh Civil and Environmental engineering department German Jordanian UniversityAmman 11180Jordan department of Mechanical engineering Al-Zaytoonah University of JordanAmman 11733Jordan Luminus technical University College Amman 11118Jordan

This paper addresses the problem of a viscoelastic Euler-Bernoulli beam under the influence of a constant velocity moving mass and different types of *** types of boundary conditions are considered:pinned-pinned,fixed-pinned,fixed-free(or cantilever),and *** considered include lumped masses,dampers,and *** modal decomposition method is employed to derive the equation of motion of the beam,for which an analytical closed-form expression of the dynamic vibration response is *** proposed method enables the study of the effect of a single appendage or a combination of the three types of appendages on the non-dimensional dynamic response of the *** examples are presented to illustrate the effects of these appendages and compare them to the reference cases of a beam with no *** results demonstrate the importance of considering these parameters in the design of *** proposed method is compared to other techniques in the literature and found to be advantageous due to its direct *** method also offers a versatile tool for investigating various configurations,aiding in engineering design and structural analysis for which establishing a precise prediction of beam vibrations is crucial.

关键词： Euler-Bernoulli beam modal decomposition vibration response appendages

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Comparative Evaluation and Performance Analysis of Heat Exchangers Featured with Peened Surface

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Journal of Thermal Science 2025年第1期34卷 50-61页

作者： DINESHBABU Chinnadurai SHIVA SANKARAN Nallasamy VENKATESH RAJAKrishnan VENKATESH Rathinavelu department of Mechanical engineering Kongunadu College of Engineering and TechnologyTamil Nadu-621215India department of Mechanical engineering Selvam College of TechnologyNamakkalTamil Nadu-637003India department of Mechanical engineering Sona College of TechnologySalemTamil Nadu-636005India department of Mechanical engineering Saveetha School of EngineeringSaveetha Institute of Medical and Technical Sciences(SIMATS)Saveetha UniversityChennai 602105TamilnaduIndia

Heat exchangers have the potential for various engineering applications,and their performance is enriched by surface *** proposed system enriches the heat exchanger's performance by adapting a peened stainless steel(SS)surface blasted with copper,grinding,sand,and *** influences peened SS surface modified with a copper blast,grinding,sandblast,and iron blast on the surface morphology of shell and tube heat exchanger surface(STHE)is analyzed via tungsten heated cathode electron gun featured scanning electron microscope and observed coarse grain *** SS surface featured STHE performance is experimentally evaluated by different flow rates(30,60,90,and 120 L/min)underwater fluid medium functioned by the temperature ranges of 25-75℃ and its results are compared with computational fluid dynamic(CFD)/heat transfer research(HTRI)analyzed *** 60 L/min flow rate was spotted as an optimum value for both shell and tube side *** STHE is operated with a 60 L/min flow rate under the different peened surfaces and evaluated its Stanton number,Nusselt number,logarithmic mean temperature difference(LMTD),overall heat transfer coefficient,number of transfer units(NTU),effectiveness,and exergy *** iron blasted SS peened surface was observed to have better SHTE performance like Stanton number(0.0012),Nusselt number(2180),reduced LMTD of 31℃,improved overall heat transfer co-efficient of 2400 W/(m^(2)·K),better NTU of 0.5532,good effectiveness value of 0.45162,and hiked exergy efficiency of 10% respectively.

关键词： penned surface performance analysis stainless steel shell and tube heat exchanger

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Fuzzy logic controller design with unevenly-distributed membership function for high performance chamber cooling system

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Journal of Central South University 2014年第7期21卷 2684-2692页

作者：曹健鹏 Seok-Kwon Jeong Young-Mi Jung Graduate School of refrigeration and air-conditioning engineering Pukyong National University department of refrigeration and air-conditioning engineering Pukyong National University

Fuzzy logic controller adopting unevenly-distributed membership function was presented with the purpose of enhancing performance of the temperature control precision and robustness for the chamber cooling *** equalization and noise detection were performed to modify the evenly-distributed membership functions of error and error change rate into unevenly-distributed membership ***,the experimental results with evenly and unevenly distributed membership functions were compared under the same outside environment *** experimental results show that the steady-state error is reduced around 40% and the noise disturbance is rejected successfully even though noise range is 60% of the control precision *** control precision is improved by reducing the steady-state error and the robustness is enhanced by rejecting noise disturbance through the fuzzy logic controller with unevenly-distributed membership ***,the system energy efficiency and lifetime of electronic expansion valve(EEV) installed in chamber cooling system are improved by adopting the unevenly-distributed membership function.

关键词： chamber cooling system fuzzy logic controller unevenly-distributed membership function steady-state error reduction robustness variable speed refrigeration system

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Dynamic stress concentration in an infinitely long cylindrical cavity due to a point spherical source embedded within a fluid-saturated poroelastic formation of infinite extent

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 139-156页

作者： H.HOSSEINI O.BALILASHAKI department of Mechanical engineering Faculty of EngineeringGolestan University

The effects of a harmonically exciting monopole source on an infinitely long cylindrical cavity embedded entirely within a fluid-saturated poroelastic formation of infinite extent are examined theoretically. It is assumed that the source is located outside the cavity at a specified distance from the borehole axis. The magnitudes of the hoop and radial stresses beside the pore pressures exerted on the interface and inside the porous medium surrounding the borehole are calculated and discussed. Biot's poroelastic modeling along with three types of boundary conditions for the cylindrical interface including the ideal fluid, empty borehole, and rigid inclusion with a hard boundary is employed for the analysis. Utilizing a proper translational addition theorem for expressing the incident spherical wave in terms of cylindrical wave expansions, the proposed boundary conditions at the interface are satisfied. Stresses are formulated by means of wave potential functions in a three-dimensional(3D) manner. The effects of the frequency and the radial distance between the source and borehole on the induced stresses are examined for the first cylindrical modes over frequency spectra. Two permeability conditions for the interface and three types of soils for the porous formation are considered throughout the analysis. To give an overall outline of the study, a numerical example is presented. The results clearly indicate that the distance is a key parameter and has considerable effects on the induced stress values. In addition, the interface permeability condition and soil characteristics play an important role in determining the dynamic response of the borehole. Finally,the obtained results are compared with the relevant analyses existing in the literature for some limit cases, and good agreement is achieved.

关键词： cylindrical cavity O353.4 point source porous medium stress concentration wave-field transformation

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Comparative chemical sensor for detection of chromium(Ⅵ) in aqueous solution

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Optoelectronics Letters 2025年第1期21卷 21-27页

作者： Sura H.AL-REKABI A.A.ALWAHIB Electrical Technique department Al Suwayrah Technical InstituteMiddle Technical UniversityBaghdadIraq Laser and Optoelectronics department University of Technology-IraqBaghdadIraq

A process for purifying aqueous solutions containing heavy and toxic metals such as chromium(Cr) has been *** of the extremely harmful pollutants in rivers and seawater is the heavy metal ions due to their direct impacts on human,animals and plants are hexavalent Cr(Ⅵ).Consequently,highly sensitive sensor to detect Cr is *** plasmon resonance(SPR) technique has attracted huge research interest in detecting heavy metals *** this study,three types of prism-based SPR sensor,gold(Au)/silver(Ag),Au/polyaniline(PANI) and Au/titanium dioxide(TiO_(2)) nanostructured films,are investigated as potential sensing material to detect the presence of Cr(Ⅵ) ions in *** base Au layer with thickness of 48.3 nm is deposited on a glass slide for all *** Au/Ag,Au/PANI nanofibers and Au/TiO_(2) sensor films,the Cr(Ⅵ) concentration is varied from 1 ppm to 15 ppm with sensitivity of 0.270 °ppm^(-1),0.082 °ppm^(-1) and 0.039 °ppm^(-1),*** on these results,the Au/PANI nanofibers are the most sensitive to Cr(Ⅵ) among the tested sensing materials.

关键词： chromium fibers silver

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Improved estimation of rotor position for sensorless control of a PMSM based on a sliding mode observer

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Journal of Central South University 2016年第7期23卷 1643-1656页

作者： Wahyu Kunto Wibowo Seok-Kwon Jeong department of Electrical engineering Universitas Pertamina refrigeration and air-conditioning engineering Pukyong National University

This work proposes a new strategy to improve the rotor position estimation of a permanent magnet synchronous motor(PMSM) over wide speed range. Rotor position estimation of a PMSM is performed by using sliding mode observer(SMO). An adaptive observer gain was designed based on Lyapunov function and applied to solve the chattering problem caused by the discontinuous function of the SMO in the wide speed range. The cascade low-pass filter(LPF) with variable cut-off frequency was proposed to reduce the chattering problem and to attenuate the filtering capability of the SMO. In addition, the phase shift caused by the filter was counterbalanced by applying the variable phase delay compensation for the whole speed area. High accuracy estimation result of the rotor position was obtained in the experiment by applying the proposed estimation strategy.

关键词： rotor position estimation permanent magnet synchronous motor sliding mode observer adaptive observer gain cascadelow-pass filter variable cut-off frequency variable phase delay compensation

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Experiments and modeling of microstructural and mechanical behaviors of laser-welded Ni-based superalloy at high temperatures

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Chinese Journal of Aeronautics 2025年第1期38卷 99-114页

作者： Ting HOU Yong LI Degang WANG Yuelin WANG Marko VILOTIC School of Mechanical engineering and Automation Beihang UniversityBeijing 100191China department of Structure Shenyang Aircraft Designand Research InstituteShenyang 110000China engineering Center Shenyang Aircraft CorporationShenyang 110000China Faculty of technical Science University of Novi SadNovi Sad 21102Serbia

The performance of welded Ni-based superalloys at high temperatures is essential to be evaluated due to their particular service environment for aero-engines and high-speed *** tensile properties and related microstructural evolutions such as the carbide precipitate and grain of a laser-welded Ni-based alloy were experimentally and numerically investigated at different temperatures(20,300,500,800℃).The results show that at room temperature,the strength of the Base Material(BM)was slightly smaller,with a difference of less than 1%,than the Welded Material(WM),which can be attributed to the more uniformly distributed needle-shaped carbide precipitates in the WM than those nonuniformly coarser spherical ones in the *** at 300℃ and 500℃,the strength of WM decreased more obviously compared with that of BM due to the more apparent growth of grain:13.52%loss in yield strength in WM alloys as compared with BM alloys at 300℃,and 16.57% at 500℃.At 800℃,the strength of BM and WM both decreased to a similar level due to Dynamic Recrystallization(DRX).However,a much higher elongation was observed for the BM than WM(less than 50%of BM),which can be attributed to the enhanced dislocation accumulation capability of the large spherical carbides along grain boundaries on the fracture surface in ***,a unified model considering the welding effects on both microstructures(dislocation,carbides,and grain)and mechanical properties evolutions at different temperatures was developed and *** on this model,the key temperature ranges(20–600℃)where apparent weakening of strength and uniform plasticity occurs for welded structures were identified,providing a direct guidance for potential structure and process design.

关键词： Ni-based superalloy Microstructure Mechanical properties Constitutive model High temperature

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Abrasive wear behavior of functionally graded Al_(3)Ti reinforced aluminum matrix composite

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China Foundry 2025年第1期22卷 45-54页

作者： Eylül Tuğçe Yaman Yildiz Ömer Savaş Muhammed Soner Başer Engin Kocaman Ince Shipping Group 34724IstanbulTurkey Yildiz technical University Faculty of Naval Architecture and Maritime34349IstanbulTurkey Ministry of Transport and Infrastructure General Directorate of Marine Affairs06338AnkaraTurkey Zonguldak Bulent Ecevit University Faculty of EngineeringDepartment of Aerospace Engineering67100ZonguldakTurkey

Aluminum alloys are widely used in industry due to their light *** alloys are generally exposed to abrasive wear,which diminishes their effective *** wear resistance of these alloys is enhanced by adding various reinforcements,however,this enhancement comes at the cost of reduced fracture *** paradox of increased wear resistance versus decreased fracture toughness in aluminum alloys can be resolved by using functionally graded materials (FGMs).This study focuses on the abrasive wear behavior of functional graded aluminum matrix composites reinforced with Al_(3)Ti *** wear properties of the composites were investigated by considering the characteristics of the composite such as matrix type and various composite zones,as well as the wear parameters such as abrasive particle diameter,load,sliding speed and *** method was used in the abrasive wear tests in order to get more reliable results in a timeefficient *** recipes were created based on the L_(27)(3^(6)) orthogonal *** a result of the study,it is observed that the wear resistance of the composites increases with an increase in Al_(3)Ti reinforcement content and hardness of the *** addition,the size of abrasive particles and the applied load are significant factors affecting abrasive wear.

关键词： functionally graded Al_(3)Ti Taguchi abrasive wear

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