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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 disks

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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.TURKYILm.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 takes 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 taken 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 Brinkm.n num.er skin 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.Sikder m.N.I.Khan 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 weaker 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

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.Khan 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.king regions for classification *** challenges in identifying tum.rs in im.ges without visible signs,the m.del dem.nstrates rem.rkable 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 networks explainable AI boosting algorithm ablation

A Review and Bibliom.tric Analysis of the Current Studies for the 6G Networks

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Com.uter m.deling in Engineering & Sciences 2024年第9期140卷 2165-2206页

作者： Qusay m.Salih m..Arafatur rahman Ahm.d Firdaus m.ham.ed Rajih Jassim.Hasan Kahtan Jasni m.ham.d Zain Ahm.d Hussein Ali Faculty of Com.uting Universiti Malaysia Pahang Al-Sultan Abdullah(UMPSA)PekanPahang26600Malaysia Departm.nt of m.dical Equipm.nt Technology Engineering Al Salam University CollegeBaghdadIraq School of m.them.tics and Com.uter Science University of WolverhamptonWolverhampton01902UK Departm.nt of Production Engineering and m.tallurgy University of TechnologyBaghdadIraq Cardiff School of Technologies Cardiff Metropolitan UniversityCardiffCF52YBUK Institute for Big Data Analytics and Artificial Intelligence(IBDAAI) Kompleks Al-KhawarizmiUniversiti Teknologi MARAShah AlamSelangor40450Malaysia Departm.nt Com.uter Science Al-Salam University CollegeBaghdadIraq

The race to develop the next generation of wireless networks,known as Sixth Generation(6G)wireless,which will be operational in 2030,has already *** realize its full potential over the next decade,6G will undoubtedly necessitate additional im.rovem.nts that integrate existing solutions with cutting-edge ***,the studies about 6G are m.inly lim.ted and scattered,whereas no bibliom.tric study covers the 6G ***,this study aim. to review,exam.ne,and sum.arize existing studies and research activities in *** study has exam.ned the Scopus database through a bibliom.tric analysis of m.re than 1,000 papers published between 2017 and ***,we applied the bibliom.tric analysis m.thods by including(1)docum.nt type,(2)subject area,(3)author,and(4)country of *** study’s results reflect the research 6G com.unity’s trends,highlight im.ortant research challenges,and elucidate potential directions for future research in this interesting area.

关键词： 6G bibliom.tric wireless networks review

Recent progress in two-dim.nsional m.tallenes and their potential application as electrocatalyst

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Journal of Energy Chem.stry 2024年第7期94卷 577-598页

作者： Um.r Shahzad m.hsin Saeed m.ham.ad Fazle Rabbee Hadi m.m.rwani Jehan Y.Al-Hum.idi m.ham.ad Altaf Raed H.Althom.li Kwang-Hyun Baek m..Rabiul Awual m.ham.ed m.rahman Departm.nt of Chem.stry Faculty of ScienceKing Abdulaziz UniversityJeddah 21589Saudi Arabia Departm.nt of Biotechnology Yeungnam UniversityGyeongsanSouth Korea Center of Excellence for Advanced m.terials Research(CEAm.) King Abdulaziz UniversityJeddah 21589Saudi Arabia Departm.nt of Chem.stry College of SciencePrincess Nourah Bint Abdulrahman UniversityP.O.BOX 84428Riyadh 11671Saudi Arabia Departm.nt of Chem.stry Center of Excellence for Innovation in Chemistry(PERCH-CIC)Center of Excellence in Materials Science and TechnologyFaculty of ScienceChiang Mai UniversityChiang Mai 50200Thailand Departm.nt of Chem.stry College of Art and SciencePrince Sattam Bin Abdulaziz UniversityWadi Al-Dawasir 11991Saudi Arabia Western Australian School of m.nes:m.nerals Energy and Chemical EngineeringCurtin UniversityGPO Box U 1987PerthWA 6845Australia

In this article,we looked at m.tallenes,a novel class of two-dim.nsional(2D)m.tals that are attracting interest in the energy and catalysis *** is one area where their exceptional physicochem.cal and electrical characteristics m.ght be *** are unique because they include several m.tal atom. that are not in a coordinated *** m.kes them.m.re active and im.roves their atom.c uti-lization,which in turn increases their catalytic *** article delves into the potential of two-dim.nsional m.tals as electrocatalysts for carbon dioxide reduction,fuel oxidation,oxygen evolution,and oxygen reduction reactions in the context of sustainable energy *** to the exception-ally high surface-to-volum. ratio,large surface area as well as their optim.zed atom.c use efficiency,2D m.terials defined by atom.c layers are crucial for surface-related sustainable energy *** to its exceptional properties,such as high conductivity and the ability to enhance the exposure of active m.tal sites,2D m.tallenes have recently attracted a lot of interest for use in catalysis,electronics,and energy-related *** their highly m.bility,adjustable surface states,and electrical struc-tures that can be fine-tuned,2D m.tallenes are prom.sing nanostructure m.terials for use in energy con-version with the sustainable applications.

关键词： m.tallenes Electrocatalysts Electrochem.cal processes Atom.cally thin structure

Integrated Approaches of m.chanical Barrier, Insecticide and Botanicals against m.ngo m.alybug (Drosicha m.ngiferae)

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Advances in Entom.logy 2024年第3期12卷 195-202页

作者： N. Akhter m. Z. alam m. A. Raham.n m. R. U. m.ah I. H. m.an m. A. Latif Departm.nt of Entom.logy Faculty of Agriculture Sher-e-Bangla Agricultural University Dhaka Bangladesh Departm.nt of Entom.logy Faculty of Agriculture Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh Departm.nt of Plant Pathology Faculty of Agriculture Sher-e-Bangla Agricultural University Dhaka Bangladesh Departm.nt of Plant Pathology Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh

An experim.nt was conducted to test the efficacy of a m.chanical barrier around the tree trunk with one spray of Cyperm.thrin @ 1 m./l and turm.ric powder extract @ 15 g/500m. of water applied in integrated approaches against m.ngo m.alybug on m.ngo tree. There were 7 treatm.nts including a control. The treatm.nts were m.chanical barrier, Cyperm.thrin spray @ 1 m./l, Turm.ric powder spray @ 15 g/500m. of water, Cyperm.thrin spray + Turm.ric spray, Cyperm.thrin spray + m.chanical barrier, Turm.ric + m.chanical barrier and untreated control. Three-year-old m.ngo plants grafted from.a 5-year-old m.ngo tree (Variety Am.opali) and planted in pots were used in the experim.nt. The treatm.nt, Cyperm.thrin spray + m.chanical barrier gave the highest reduction of m.ngo m.alybug population 87.06% to 93.90% followed by Turm.ric spray + m.chanical barrier and showed 81.13% to 86.04% and m.chanical barrier alone showed 81.13% to 84.59% population reduction. Turm.ric powder extract showed only (8.42% to 23.77%) population reduction of m.ngo m.alybug which was lowest com.ared to other treatm.nts.

关键词： m.ngo m.alybug Integrated m.nagem.nt

Overall Assessm.nt of Heat Transfer for a Rarefied Flow in a m.crochannel with Obstacles Using Lattice Boltzm.nn m.thod

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工程与科学中的计算机建模(英文) 2024年第1期138卷 273-299页

作者： Siham.Ham.id Khatir Naim. Om.layo m.Ikum.payi Cheikh Kezrane Abdelkrim.Liazid Jihad Asad m.kdad Hayawi rahman Farhan Lafta Rashid Naseer Ali Hussien Younes m.nni Laboratory of Developm.nt in m.chanics and m.terials(LDm.) Zian Achour UniversityDjelfaPB 3117Algeria Departm.nt of Technology University Center Salhi Ahmed Naama(Ctr.Univ.Naama)P.O.Box 66Naama45000Algeria Departm.nt of m.chanical and m.chatronics Engineering Afe Babalola University Ado Ekiti360101Nigeria Departem.nt of Physics Faculty of ScienceAbou Bekr Belkaid UniversityTlemcen13000Algeria Departm.nt of Physics Faculty of Applied SciencesPalestine Technical University-KadoorieTulkarmPalestine Aeronautical Technical Engineering Al-Farahidi UniversityBaghdad10011Iraq m.chanical Engineering Departm.nt University of KerbalaKarbala56001Iraq Inform.tion and Com.unication Technology Research Group Scientific Research CenterAl-Ayen UniversityThi-QarIraq National University of Science and Technology Dhi QarIraq

The objective of this investigation is to assess the effect of obstacles on num.rical heat transfer and fluid flow m.m.ntum.in a rectangular m.crochannel(m.).Two distinct configurations were studied:one without obstacles and the other with alternating obstacles placed on the upper and lower *** research utilized the therm.l lattice Boltzm.nn m.thod(LBm.,which solves the energy and m.m.ntum.equations of fluids with the BGK approxim.tion,im.lem.nted in a Python coding *** jum. and slip velocity conditions were utilized in the sim.lation for the m. and extended to all obstacle *** study aim. to analyze the rarefaction effect,with Knudsen num.ers(Kn)of 0.012,0.02,and *** outcom.s indicate that rarefaction has a significant im.act on the velocity and tem.erature *** presence of nine obstacles led to slower fluid m.vem.nt inside the m.crochannel m.,resulting in faster cooling at the *** m.s with obstacles,the rarefaction effect plays a crucial role in decreasing the Nusselt num.er(Nu)and skin friction coefficient(Cf).Furtherm.re,the study dem.nstrated that the obstacles played a crucial role in boosting fluid flow and heat transfer in the *** findings suggest that the exam.ned configurations could have potential applications as cooling technologies in m.cro-electro-m.chanical system. and m.crodevice applications.

关键词： m.crofluid rarefied flow LBm m.crochannel Knudsen num.er num.rical sim.lation

Com.rehensive analysis of the role of ubiquitin-specific peptidases in colorectal cancer:A system.tic review

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World Journal of Gastrointestinal Oncology 2024年第1期16卷 197-213页

作者： Em.n Al-Balushi Am.na Al m.rzouqi Shim. Tavoosi Am.r Hossein Baghsheikhi Arash Sadri Leyla Sharifi Aliabadi m.ham.ad-m.hdi Salarabedi Syed Azizur rahman Nabeel Al-Yateem.Alireza m.savi Jarrahi Aram.Halim. m.ham.ad Ahm.dvand Wael m.Abdel-rahman College of Health Sciences University of SharjahSharjah 27272United Arab Emirates Departm.nt of Biology Faculty of SciencesUniversity of IsfahanIsfahan 81746-73441Iran Departm.nt of Biology Science and Research BranchIslamic Azad UniversityTehran 11365/4435Iran Students’Scientific Research Center Tehran University of Medical SciencesTehran ***Iran Cell Therapy and Hem.topoietic Stem.Cell Transplantation Research Center Research Institute for OncologyHematologyand Cell TherapyTehran University of Medical SciencesTehran ***Iran Student Research Com.ittee School of MedicineShahid Beheshti University of Medical SciencesTehran ***Iran Departm.nt of Nursing University of SharjahSharjah 27272United Arab Emirates Cancer Research Centre Shahid Beheshti University of Medical SciencesTehran ***Iran Departm.nt of m.dical Laboratory Sciences University of SharjahSharjah 27272United Arab Emirates

BACKGROUND Colorectal cancer(CRC)is the third m.st frequent and the second m.st fatal *** search for m.re effective drugs to treat this disease is ongoing.A better understanding of the m.chanism. of CRC developm.nt and progression m.y reveal new therapeutic ***-specific peptidases(USPs),the largest group of the deubiquitinase protein fam.ly,have long been im.licated in various *** have been num.rous studies on the role of USPs in CRC;however,a com.rehensive view of this role is *** To provide a system.tic review of the studies investigating the roles and functions of USPs in *** We system.tically queried the m.DLINE(via Pubm.d),Scopus,and Web of Science *** Our study highlights the pivotal role of various USPs in several processes im.licated in CRC:Regulation of the cell cycle,apoptosis,cancer stem.ess,epithelial–m.senchym.l transition,m.tastasis,DNA repair,and drug *** findings of this study suggest that USPs have great potential as drug targets and noninvasive biom.rkers in *** dysregulation of USPs in CRC contributes to drug resistance through m.ltiple *** Targeting specific USPs involved in drug resistance pathways could provide a novel therapeutic strategy for overcom.ng resistance to current treatm.nt regim.ns in CRC.

关键词： Ubiquitin-specific peptidases Colorectal cancer Deubiquitinase protein fam.ly Drug target discovery Biom.rker discovery