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Effects of m.ltiple shapes for steady flow with transform.r oil+Fe_(3)O_(4)+TiO_(2) between two stretchable rotating disk.

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Applied m.them.tics and m.chanics(English Edition) 2024年第2期45卷 373-388页

作者： m.rahman m.TURk.ILm.ZOGLU Z.m.SHTAQ Departm.nt of m.them.tics Mirpur University of Science and TechnologyMirpur 10250Pakistan Departm.nt of m.them.tics Hacettepe UniversityBeytepeAnkara 06532Turkiye

In this study,we exam.ne the effects of various shapes of nanoparticles in a steady flow of hybrid nanofluids between two stretchable rotating *** steady flow of hybrid nanofluids with transform.r oil as the base fluid and Fe_(3)O_(4)+TiO_(2)as the hybrid nanofluid is *** shapes of Fe_(3)O_(4)+TiO_(2)hybrid nanofluids,including sphere,brick.blade,cylinder,and platelet,are *** shape exists in the sam. volum. of a *** leading equations(partial differential equations(PDEs))are transform.d to the nonlinear ordinary differential equations(ODEs)with the help of sim.larity *** system.of equations tak.s the form.of ODEs depending on the boundary conditions,whose solutions are com.uted num.rically by the bvp4c m.TLAB *** outputs are com.ared with the previous findings,and an intriguing pattern is discovered,such that the tangential velocity is increased for the rotation param.ter,while it is decreased by the stretching values because of the lower *** the reaction rate param.ter,the concentration boundary layer becom.s shorter,and the activation energy com.onent increases the rate at which m.ss transfers com. to the higher disk.but have the opposite effect on the bottom.*** ranges of various param.ters tak.n into account are Pr=6.2,Re=2,m.1.0,φ_(1)=φ_(2)=0.03,k.0.5,S=-0.1,Br=0.3,Sc=2.0,α_(1)=0.2,γ=0.1,E_(n)=2.0,and q=1.0,and the rotation factor k.is within the range of 0 to 1.

关键词： transform.r oil Brink.an num.er sk.n friction coefficient double rotating disk Nusselt num.er Sherwood num.er

Enhancem.nt of coercivity,perm.ability,and dielectric properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites for m.m.ry and high frequency devices

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Journal of Rare Earths 2024年第6期42卷 1128-1135,I0005页

作者： I.Sardar m.D.Hossain m.S.Sik.er m.N.I.k.an m.R.rahman Physics Discipline Khulna UniversityKhulna9208Bangladesh Departm.nt of Physics Khulna University of Engineering&TechnologyKhulna9203Bangladesh Departm.nt ofCom.uter Science and Engineering Northern University of Business&Technology KhulnaKhulna9100Bangladesh m.terial Science Division Atomic Energy CentreDhaka1000Bangladesh

Spinel cubic ferrites have huge applications in m. m.ry and high frequency *** the im.rovem.nt of these m.dern devices,the m.gnetic coercivity,perm.ability,and dielectric properties of a ferrite are the im.ortant *** article focuses on im.roving the m.gnetic coercivity,m.gnetic perm.ability,and dielectric properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ferrites,where x=0.00,0.06,and *** X-ray diffraction(XRD),Fourier transform.infrared spectroscopy(FTIR),field em.ssion scanning electron m.croscopy(FESEm.,energy dispersive X-ray(EDX),vibrating sam.le m.gnetom.ter(VSm.,and an im.edance analyzer were used to characterize the structural,m.gnetic,and dielectric properties of the *** XRD patterns indicate the form.tion of spinel cubic structure of the sam.les with a secondary peak.EuFeO_(3))for Eu doped *** densities and porosities of the sam.les follow an inverse trend,where the doped sam.les’lattice param.ters are increased with the increm.nt of rare earth Eu *** FTIR analysis also proves the spinel cubic phase of the *** average grain size of the ferrites is obtained via FESEm.im.ges,and it is increased from.121 to 198 *** analysis confirm. that doping of the Eu content also changes other hysteresis loop properties of Co_(0.2)Zn_(0.3)Ni_(0.5)Eu_(x)Fe_(2-x)O_(4) ***,the coercivity of the Eu doped sam.les is greater than that of the m.ther alloy(x=0.00).The EDX study shows that there is no im.urity contam.nation in the *** perm.ability and dielectric m.asurem.nts show an im.roved quality factor of the Eu-doped sam.les with low m.gnetic and dielectric *** dependent resistivity and im.edance analysis also show the im.roved *** the observed properties of the sam.les,all the investigated ferrites m.ght be strong candidates for potential applications in m.m.ry devices,m.gnetic sensors,and high frequency applications.

关键词： Ferrites Raree arths Coercivity Perm.ability EDX Resistivity

Unraveling the nature of sensing in electrostatic m.m. gas sensors

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m.crosystem. & Nanoengineering 2024年第3期10卷 109-117页

作者： Yasser S.Sham. Sasan rahmanian Ham.a m.uharrar Rana Abdelrahman Alaaeldin Elhady Eihab m.Abdel-rahman System. Design Engineering University of Waterloo200 University Ave WWaterloo N2L 3G1 ONCanada m.chanical Engineering Benha Faculty of EngineeringBenha UniversityBenha 13511Egypt

This paper investigates the fundam.ntal sensing m.chanism.of electrostatic m.m. gas *** com.ares am.ng the responsivities of a set of m.m. isopropanol sensors before and after functionalization,and in the presence and absence of electrostatic fields when operated in static and dynam.c detection *** the static m.de,we found that the sensors do not exhibit a m.asurable change in displacem.nt due to added *** the other hand,bare sensors showed a clear change in displacem.nt in response to isopropanol *** the dynam.c m.de,functionalized sensors showed a m.asurable frequency shift due to the added m.ss of isopropanol *** the presence of strong electrostatic fields,the m.asured frequency shift was found to be threefold larger than that in their absence in response to the sam. concentration of isopropanol *** enhanced responsivity of dynam.c detection allows the sensors to m.asure the vapor m.ss captured by the functional m.terial,which is not the case for static *** detection of isopropanol by bare sensors in static m.de shows that change in the m.dium.perm.ttivity is the prim.ry sensing *** enhanced responsivity of dynam.c m.de sensors when operated in strong electrostatic fields shows that their sensing m.chanism.is a com.ination of a weak.r added m.ss effect and a stronger perm.ttivity *** findings show that electrostatic m.m. gas sensors are independent of the direction of the gravitational field and are,thus,robust to changes in *** is erroneous to refer to them.as‘gravim.tric’sensors.

关键词： m.chanism electrostatic m.asurable

Trehalose:A sugar m.lecule involved in tem.erature stress m.nagem.nt in plants

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The Crop Journal 2024年第1期12卷 1-16页

作者： Ali Raza Savita Bhardwaj m. Atik.r rahman Pedro García-Caparrós m.diha Habib Faisal Saeed Sidra Charagh Christine H.Foyer k.dam.ot H.m.Siddique Rajeev k.Varshney College of Agriculture Fujian Agriculture and Forestry University(FAFU)Fuzhou 350002FujianChina Departm.nt of Botany School of Bioengineering and BiosciencesLovely Professional UniversityPhagwara 144411India Departm.nt of Botany MCM DAV CollegeKangraHimachal Pradesh 176001India Grassland and Forage Division National Institute of Animal ScienceRural Development AdministrationCheonan 31000Republic of Korea Agronom. Departm.nt of Superior School Engineering University of AlmeríaAlmeríaSpain National Institute for Genom.cs and Advanced Biotechnology National Agricultural Research CentrePark Rd.Islamabad 45500Pakistan Agriculture Health and Environment DepartmentNatural Resources InstituteFaculty of Engineering&ScienceUniversity of GreenwichKent ME44TBUK State k.y Laboratory of Rice Biology China National Rice Research InstituteChinese Academy of Agricultural SciencesHangzhouZhejiangChina School of Biosciences College of Life and Environmental SciencesUniversity of BirminghamEdgbaston B152TTUK The UWA Institute of Agriculture The University of Western AustraliaCrawleyPerth 6009Australia WA State Agricultural Biotechnology Centre Centre for Crop and Food InnovationFood Futures InstituteMurdoch UniversityMurdochWA 6150Australia

Trehalose(Tre)is a non-reducing disaccharide found in m.ny species,including bacteria,fungi,invertebrates,yeast,and even plants,where it acts as an osm.protectant,energy source,or protein/m.m.rane *** relatively sm.ll am.unts in plants,Tre concentrations increase following exposure to abiotic ***-6-phosphate,a precursor of Tre,has regulatory functions in sugar m.tabolism.crop production,and stress *** the various abiotic stresses,tem.erature extrem.s(heat or cold stress)are anticipated to im.act crop production worldwide due to ongoing clim.te *** sm.ll am.unts of Tre can m.tigate negative physiological,m.tabolic,and m.lecular responses triggered by tem.erature *** also interacts with other sugars,osm.protectants,am.no acids,and phytohorm.nes to regulate m.tabolic reprogram.ing that underpins tem.erature stress *** plants expressing Tre-synthesis genes accum.late Tre and show im.roved stress ***-wide studies of Tre-encoding genes suggest roles in plant growth,developm.nt,and stress *** review discusses the functions of Tre in m.tigating tem.erature stress—highlighting genetic engineering approaches to m.dify Tre m.tabolism.crosstalk.and interactions with other m.lecules—and in-silico approaches for identifying novel Tre-encoding genes in diverse plant *** consider how this k.owledge can be used to develop tem.erature-resilient crops essential for sustainable agriculture.

关键词： Abiotic stress Gene expression Genetic engineering Osm.lyte Trehalose-6-phosphate

Turning Trash into Treasure: Developing an Intelligent Bin for Plastic Bottle Recycling

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Journal of Social Com.uting 2024年第1期5卷 1-14页

作者： Sirajam.m.nira Niloy Paul m. Ashraful Alam.m..m.hm.dur rahman m.Sham.m.k.iser Institute of Inform.tion Technology Jahangirnagar UniversityDhaka 1342Bangladesh

Plastic pollution has em.rged as a m.jor global concern due to its enduring nature and lim.ted recycling *** response to this critical challenge,this paper presents a novel approach utilizing a Detection-Based Reward System.DBRS)alongside an innovative business m.del to prom.te effective plastic waste m.nagem.nt,reduce plastic waste accum.lation in the nature,and uphold environm.ntal *** the YOLOv5 algorithm.for its exceptional accuracy,speed,and open-source availability,plastic bottle detection becom.s a pivotal aspect of this *** seam.essly enroll in the system.triggering an autom.ted detection process that com.utes reward points corresponding to their deposited plastic *** reward points are m.ticulously stored within a centralized *** its operational facets,this com.rehensive system.encom.asses a robust business m.del,strategically poised to capture widespread engagem.nt with waste disposal practices,thereby contributing to the realization of Sustainable Developm.nt Goals(SDGs)geared towards fostering a healthier ***,the DBRS attains cutting-edge perform.nce in plastic bottle detection,boasting an im.ressive m.an Average Precision(m.P)of 0.973,underscoring its efficacy in tack.ing plastic pollution.

关键词： sm.rt environm.nt reward system YOLOv5 deep learning business m.del

Therm.l noise-driven resonant sensors

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m.crosystem. & Nanoengineering 2024年第3期10卷 259-271页

作者： Yan Qiao Alaaeldin Elhady m.ham.d Arabi Eihab Abdel-rahman Wenm.ng Zhang School of m.chanical Engineering Shanghai Jiao Tong UniversityShanghaiChina Departm.nt of System. Design Engineering University of WaterlooWaterlooONCanada

m.m./NEm. resonant sensors hold prom.se for m.nute m.ss and force ***,one m.jor challenge is that conventional externally driven sensors inevitably encounter undesired intrinsic noise,which im.oses a fundam.ntal lim.tation upon their signal-to-noise ratio(SNR)and,consequently,the ***,this restriction becom.s increasingly pronounced as sensors shrink.to the *** this work.we propose a counterintuitive paradigm.shift that turns intrinsic therm.l noise from.an im.edim.nt to a constituent of the sensor by harvesting it as the driving force,obviating the need for external actuation and realizing‘noise-driven’*** sensors em.loy the dynam.cally am.lified response to therm.l noise at resonances for stim.lus *** dem.nstrate that lightly dam.ed and highly com.liant nano-structures with high aspect ratios are prom.sing candidates for this class of *** overcom. the phase incoherence of the drive force,three noise-enabled quantitative sensing m.chanism. are *** validated our sensor paradigm.by experim.ntal dem.nstrating noise-driven pressure and tem.erature ***-driven sensors offer a new opportunity for delivering practical NEm. sensors that can function at room.tem.erature and under am.ient pressure,and a developm.nt that suggests a path to cheaper,sim.ler,and low-power-consum.tion sensors.

关键词： noise resonant overcom.

Endoscopic push through tragal cartilage tym.anoplasty: A 10-year retrospective review of our technique and outcom.s

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World Journal of Otorhinolaryngology 2024年第2期11卷 18-24页

作者： k.m.Abidur rahman k.alid m.jeed Em.a Finnegan Ivan k.ogh Ear Noseand Throat/Head and Neck SurgeryGalway University HospitalGalway H91 YR71Ireland Academ.c Departm.nt of Otorhinolaryngology and Head and Neck.Surgery University of GalwayGalway H91 TK33Ireland

BACk.ROUND Endoscopic ear surgery(EES)provides a m.gnified,high-definition view of the otological surgical *** allows otologists to avoid surgical incisions and associated postoperative *** is an ideal technique for the perfor-m.nce and teaching of *** To exam.ne the efficacy of total Endoscopic Push Through Tragal Cartilage Tym.anoplasty(EPTTCT),at our institution over a 10-year *** A retrospective analysis of 168 cases of EPTTCT for closure of sm.ll to m.dium.tym.anic m.m.rane perforations from.2013-2023 was *** sex,age range(pediatric vs adult),etiology of injury,success rate,com.lications,and postoperative hearing status were *** Graft uptak. results indicated success in 94%of patients,with less than a 2%com.lication *** pure tone audiom.try dem.nstrated hearing status im.rovem.nt in 69%of *** EPTTCT has been shown to be effective in tym.anic m.m.rane perforation closures with m.nim.l *** study further dem.nstrates the efficacy and safety of these procedures in a single-center review.

关键词： Total endoscopic ear surgery Otology Tym.anoplasty Hearing Perforation Tragal cartilage graft

Gliom.CNN: An Effective Lightweight CNN m.del in Assessm.nt of Classifying Brain Tum.r from.m.gnetic Resonance Im.ges Using Explainable AI

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Com.uter m.deling in Engineering & Sciences 2024年第9期140卷 2425-2448页

作者： m..Atiqur rahman m.stavi Ibne m.sum.k.an m. Hasib m.F.m.idha Sultan Alfarhood m.jdl Safran Dunren Che Departm.nt of Com.uter Science and Engineering Ahsanullah University of Science and TechnologyDhaka1208Bangladesh Departm.nt of Com.uter Science and Software Engineering The University of Western AustraliaPerthWA 6009Australia Departm.nt of Com.uter Science American International University-BangladeshDhaka1229Bangladesh Departm.nt of Com.uter Science College of Computer and Information SciencesKing Saud UniversityP.O.Box 51178Riyadh11543Saudi Arabia School of Com.uting Southern Illinois UniversityCarbondale62901USA

Brain tum.rs pose a significant threat to hum.n lives and have gained increasing attention as the tenth leading cause of global *** study addresses the pressing issue of brain tum.r classification using m.gnetic resonance im.ging(m.I).It focuses on distinguishing between Low-Grade Gliom.s(LGG)and High-Grade Gliom.s(HGG).LGGs are benign and typically m.nageable with surgical resection,while HGGs are m.lignant and m.re *** research introduces an innovative custom.convolutional neural network.CNN)m.del,*** stands out as a lightweight CNN m.del com.ared to its *** research utilized the BraTS 2020 dataset for its *** with the gradient-boosting algorithm.Gliom.CNN has achieved an im.ressive accuracy of 99.1569%.The m.del’s interpretability is ensured through SHapley Additive exPlanations(SHAP)and Gradient-weighted Class Activation m.pping(Grad-CAm.+).They provide insights into critical decision-m.k.ng regions for classification *** challenges in identifying tum.rs in im.ges without visible signs,the m.del dem.nstrates rem.rk.ble perform.nce in this critical m.dical application,offering a prom.sing tool for accurate brain tum.r diagnosis which paves the way for enhanced early detection and treatm.nt of brain tum.rs.

关键词： Deep learning m.gnetic resonance im.ging convolutional neural network. explainable AI boosting algorithm ablation

m.chine learning-based m.lti-objective optim.zation and therm.l assessm.nt of supercritical CO_(2) Rank.ne cycles for gas turbine waste heat recovery

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Energy and AI 2024年第2期16卷 363-384页

作者： Asif Iqbal Turja Ishtiak.Ahm.d k.an Sabbir rahman Ashraf m.stak.m.m.ham.ad Ishraq Hossain m.m.njurul Ehsan Yasin k.an Departm.nt of m.chanical and Production Engineering(m.E) Islamic University of Technology(IUT)Board BazarGazipur1704Bangladesh

Technologies for utilizing waste heat for power generation have attracted significant attention in recent years due to their potential to enhance energy efficiency and reduce greenhouse gas *** research focuses on the com.arative and optim.zation analysis of three supercritical carbon dioxide(sCO_(2))Rank.ne cycles(sim.le,cascade,and split)for gas turbine waste heat *** study begins with param.tric analysis,investigating the significant effects of k.y variables,including turbine inlet tem.erature,condenser inlet tem.erature,and pinch point tem.erature,on the therm.l perform.nce of advanced sCO_(2) power *** identify the m.st efficient cycle configuration,a m.lti-objective optim.zation approach is *** approach com.ines a Genetic Algorithm.with m.chine learning regression m.dels(Random.Forest,XGBoost,Artificial Neural Network.Ridge Regression,and k.Nearest Neighbors)to predict cycle perform.nce using a dataset extracted from.cycle *** decision-m.k.ng process for determ.ning the optim.l cycle configuration is facilitated by the TOPSIS(technique for order of preference by sim.larity to the ideal solution)*** study's m.jor findings reveal that the split cycle outperform. the sim.le and cascade configurations in term. of power generation across various operating *** optim.zed split cycle not only dem.nstrates superior power output but also exhibits enhanced net power output,heat recovery,system.and exergy efficiency of 7.99 m.,76.17%,26.86%and 57.96%,respectively,m.k.ng it a prom.sing choice for waste heat recovery *** research has the potential to contribute to the advancem.nt and widespread adoption of waste heat recovery in energy technologies boosting system.efficiency and econom.c *** provides a new perspective for future research,contributing to the im.rovem.nt of energy generation infrastructure.

关键词： Supercritical co2 Rank.ne cycle Waste heat recovery Gas turbine Therm.dynam.c analysis m.chine Learning Optim.zation