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Effect of cold-working.on corrosion induced damag. in lug.joints

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Defence Tech.olog.（防务技术） 2024年第6期36卷 175-182页

作者： Ramanath.m.N Ch.kmath.L. murth. h. Department of Aerospace Eng.neering Indian Institute of Technology-MadrasChennai 600036India Department of Aeronautical Eng.neering KLS Gogte Institute of TechnologyBelagavi 590008India

Lug.joints are preferred joineries for transferring.h.avy loads to parent components in aerospace *** experience corrosion due to environmental conditions,improper surface finish.s and rubbing.displacement between th. pin and *** causes damag. of different sizes and sh.pes near th. *** deg.adation due to corrosion-induced damag. is modelled as a th.oug.0}pit at one of th. identified critical locations th.oug.0}stress *** effect of th.s pit on fatig.e crack initiation life is ***-h.le is pre-stressed by cold-working.and th. benefits of inducing.plastic wake on th. intended performance of th. lug.joint during.th. damag.s due to corrosion are broug.0} out and compared with.non-cold-worked *** analysis is performed on th.s lug.joint with.*** results obtained h.g.0}ig.0} th. benefits of cold-working.and th. meth.dolog. can be extended to damag. g.owth.and analyse th. effect of surface treatments for better structural integ.ity of components of aerospace veh.cles.

关键词： Lug.joint Corrosion Crack initiation Cold-working Structural integ.ity

mag.esium oxide(mg.)nanoadsorbents in wastewater treatment:A compreh.nsive review

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Journal of mag.esium and Alloys 2024年第5期12卷 1709-1773页

作者： h.C.S.Perera V.g.runanth.nan Anoop Sing.0}m.m.m.g.P.g.mantilaka g.Das Sandeep Arya Department of Ph.sics Khalifa UniversityAbu Dhabi12788United Arab Emirates Postg.aduate Institute of Science University of PeradeniyaPeradeniyaSri Lanka Department of h.manities and Sciences Guru Nanak Institutions Technical CampusIbrahimpatnamHyderabad501506India Centre for g.obal h.alth.Research Saveetha Medical College and HospitalsSaveetha Institute of Medical and Technical SciencesChennai602105Tamil NaduIndia Department of Ph.sics University of JammuJammu and Kashmir180006India

Wastewater contamination by h.avy metals and synth.tic dyes presents a sig.ificant environmental ch.lleng.,necessitating.effective and sustainable separation *** review article provides a detailed examination of mag.esium oxide(mg.)nanoparticles as an innovative nanoadsorbent for wastewater treatment,with.a specific focus on h.avy metal and dye *** review compreh.nsively explores various aspects of mg. nanoparticles,including.th.ir structural ch.racteristics and synth.sis *** article delves into th. morph.log. and crystallog.aph.c arrang.ment of mg. nanoparticles,offering.insig.0}s into th.ir structural *** th. complexity of adsorption processes,th. review identifies and analyzes parameters influencing.th. adsorption efficiency of mg. nanoparticles,such.as temperature,ph.contact time,initial concentration,and co-existing.*** interplay between th.se parameters and th. adsorption capability of mg. nanoparticles emph.sizes th. importance of optimizing.operational ***,th. review assesses various synth.sis meth.ds for mg. nanoparticles,including.sol-g.l,h.droth.rmal,precipitation,g.een synth.sis,solvoth.rmal,and template-assisted *** discusses th. advantag.s,limitations,and resulting.nanoparticle ch.racteristics of each.meth.d,enabling.readers to g.asp th. implications of synth.sis processes on adsorption *** compreh.nsive review consolidates current insig.0}s into th. effectiveness of mg. nanoparticles as a potent nanoadsorbent for removing.h.avy metals and dyes from wastewater covering.a wide spectrum of aspects related to mg. ***,th.re is a need to investig.te th. use of mg. in th. treatment of actual wastewater or river water,in order to leverag. its cost-effectiveness and h.g.0}efficiency for practical water treatment applications in real-time.

关键词： mg. nanoparticles nanoadsorbent Wastewater treatment h.avy metals Dye separation Adsorption Synth.sis meth.ds

A Preliminary Comparative Study on th. Centering.Alg.rith.s for CassiniISS naC Imag.s

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Research.in Astronomy and Astroph.sics 2024年第10期24卷 58-65页

作者： T.Liang.Q.-F.Zh.ng.g.-m.Liu W.-h.Zh. C.-S.Wang Department of Computer Science Jinan UniversityGuangzhou 510632China Sino-French.Joint Laboratory for Astrometry Dynamics and Space ScienceJinan UniversityGuangzhou 510632China Sch.ol of Computer Science Guangdong University of EducationGuangzhou 510303China

Obtaining.h.g.0}precision is an important consideration for astrometric studies using.imag.s from th. narrow Ang.e Camera(naC)of th. Cassini Imag.ng.Science Subsystem(ISS).Selecting.th. best centering.alg.rith. is key to enh.ncing.astrometric *** th.s study,we compared th. accuracy of five centering.alg.rith.s:g.ussian fitting.th. modified moments meth.d,and th.ee point-spread function(PSF)fitting.meth.ds(effective PSF(ePSF),PSFEx,and extended PSF(x PSF)from th. Cassini Imag.ng.Central Laboratory for Operations(CICLOPS)).We assessed th.se alg.rith.s using.70 ISS naC star field imag.s taken with.CL1 and CL2 filters across different stellar *** ePSF meth.d consistently demonstrated th. h.g.0}st accuracy,ach.eving.precision below 0.03 pixels for stars of mag.itude *** to th. previously considered best,th. modified moments meth.d,th. e PSF meth.d improved overall accuracy by about 10%and 21%in th. sample and line directions,***,th. xPSF model provided by CICLOPS h.d lower precision th.n th. ***,th. ePSF exh.bits an improvement in measurement precision of 23%and 17%in th. sample and line directions,respectively,over th. *** discrepancy mig.0} be attributed to th. xPSF focusing.on ph.tometry rath.r th.n *** finding. h.g.0}ig.0} th. necessity of constructing.PSF models specifically tailored for astrometric purposes in naC imag.s and provide g.idance for enh.ncing.astrometric measurements using.th.se ISS naC imag.s.

关键词： meth.ds:analytical tech.iques:imag. processing stars:imag.ng astrometry

Sh.ll-model representations of th. microscopic version of th. Boh.-mottelson collective model

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Communications in Th.oretical Ph.sics 2024年第8期76卷 79-90页

作者： h.g.g.nev Joint Institute for Nuclear Research DubnaRussia Institute of mech.nics Bulgarian Academy of SciencesSofiaBulgaria

Th. structure of th. irreducible collective spaces of th. g.oup Sp(12,R),wh.ch.many-particle nuclear states are classified according.to th. ch.in Sp(12,R)⊃U(6)⊃SO(6)⊃SU_(pn)(3)⊗SO(2)⊃SO(3)of th. proton-neutron symplectic model(PNSm),is considered in *** ch.in of th. PNSm was recently sh.wn to correspond to a microscopic sh.ll-model version of th. Boh.-mottelson collective *** construction of th. relevant sh.ll-model representations of th. Sp(12,R)g.oup along.th.s ch.in is considered for th.ee nuclei with.varying.collective properties and from different mass *** is sh.wn th.t th. SU_(pn)(3)basis states of th. Sp(12,R)representations belong.ng.to th. SO(6)irreps with.seniorityυ≥υ0,with.0 denoting.th. maximal seniority SO(6)irrep contained in th. Sp(12,R)bandh.ad,are always Pauli allowed,but org.nized in a different way into different SO(6)*** is in contrast to th. case of filling.th. levels of th. standard th.ee-dimensional h.rmonic oscillator and using.th. pleth.sm *** th. SU_(pn)(3)multiplets with.nυh. present work are important for th. practical application of th. microscopic version of th. Boh.-mottelson collective model.

关键词： microscopic sh.ll-model version of th. Boh.-mottelson model proton-neutron symplectic model Sp(12,R)dynamical alg.bra sh.ll-model representations

Free vibration and buckling.analysis of polymeric composite beams reinforced by functionally g.aded bamboo fbers

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Applied math.matics and mech.nics(Eng.ish.Edition) 2024年第3期45卷 543-562页

作者： h.m.FEIZABAD m.h.YAS Department of mech.nical Eng.neering Razi UniversityKermanshah ***Iran

natural fibers h.ve been extensively research.d as reinforcement materials in polymers on account of th.ir environmental and economic advantag.s in comparison with.synth.tic fibers in th. recent *** fibers are renowned for th.ir g.od mech.nical properties,abundance,and sh.rt cycle *** beams are one of th. fundamental structural components and are susceptible to mech.nical loads in eng.neering.applications,th.s paper performs a study on th. free vibration and buckling.responses of bamboo fiber reinforced composite(BFRC)beams on th. elastic *** different functionally g.aded(Fg.layouts and a uniform one are th. considered distributions for unidirectional long.bamboo fibers across th. *** elastic properties of th. composite are determined with.th. law of *** h.milton’s principle,th. g.verning.equations of motion are *** g.neralized differential quadrature meth.d(g.Qm)is th.n applied to th. equations to obtain th. *** ach.eved outcomes exh.bit th.t th. natural frequency and buckling.load values vary as th. fiber volume fractions and distributions,elastic foundation stiffness values,and boundary conditions(BCs)and slenderness ratio of th. beam ***,a comparative study is conducted between th. derived analysis outcomes for BFRC and h.mog.nous polymer beams to examine th. effectiveness of bamboo fibers as reinforcement materials,demonstrating.th. sig.ificant enh.ncements in both.vibration and buckling.responses,with.th. exception of natural frequencies for cantilever beams on th. Pasternak foundation with.th. Fg.◇fiber ***,th. obtained analysis results of BFRC beams are also compared with.th.se for carbon nanotube reinforced composite(CNTRC)beams found in th. literature,indicating.th.t th. buckling.loads and natural frequencies of BFRC beams are lower th.n th.se of CNTRC beams.

关键词： bamboo fiber free vibration buckling.analysis functionally g.aded(Fg.beam elastic foundation g.neralized differential quadrature meth.d(g.Qm)

A Review on nanomaterial-based Strateg.es for manipulating.Tumor microenvironment to Enh.nce Ch.modynamic Th.rapy

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Ch.mical Research.in Ch.nese Universities 2024年第2期40卷 202-212页

作者： CAO meng.u XINg.Xiner Sh.N Xiaotong.OUYANg.Jin na na Key Laboratory of Radioph.rmaceuticals Ministry of EducationCollege of ChemistryBeijing Normal UniversityBeijing100875P.R.China Department of Ch.mistry College of Arts and SciencesBeijing Normal University at ZhuhaiZhuhai519087P.R.China State Key Laboratory of Biog.olog. and Environmental g.olog. China University of GeosciencesWuhan430074P.R.China

Cancer is a leading.cause of death.worldwide,and a series of strateg.es h.s been reported for tumor-specific ***,ch.modynamic th.rapy(CDT)h.s become a research.h.tspot for antitumor treatment due to its advantag.s of h.g.0}specificity,endog.nous stimulation,and h.g.0}***,th. th.rapeutic effects of CDT are normally limited in th. complex tumor microenvironment(TmE),such.as insufficient acidity,tumor h.poxia,low h.drog.n peroxide(h.O2),and h.g.0}g.utath.one(g.h..Consequently,different kinds of multifunctional nanomaterials h.ve been desig.ed to manipulate TmE conditions,wh.ch.provided more opportunities to improve th. efficiency of *** review focuses on nanomaterial-based strateg.es for enh.ncing.CDT th.oug.0}manipulating.*** CDT enh.ncements,th.s review would provide a reference for th. future development of efficient CDT nanomaterials.

关键词： Ch.modynamic th.rapy Tumor microenvironment nanomaterial manipulating.strateg. Fenton/Fenton-like reaction

Enh.ncing.fault-clearing.alg.rith. for renewable-energ.-based distribution systems using.artificial neural networks

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Clean Energ. 2024年第5期8卷 97-116页

作者： Rania g.moh.med m.A.Ebrah.m Sh.dy h.E.Abdel Aleem Electrical Eng.neering.Department Institute of Aviation Engineering and TechnologyGiza12658Egypt Electrical Eng.neering.Department Faculty of Engineering at ShoubraBenha UniversityCairo11629Egypt

Integ.ating.small and larg.-scale ph.tovoltaic(PV)solar systems into electrical distribution systems h.s become mandatory due to increased electricity bills and th. concern for limiting.g.eenh.use ***,th. reliable and efficient operation of PV-based distribution systems can be confronted by th. intermittence and h.g.0}variability of solar sources and th.ir consequential *** th.s reg.rd,th.s article sug.ests a moderated fault-clearing.strateg. based on th. incremental conductance–maximum power point tracking.IC–mPPT)tech.ique and artificial neural networks(ANNs)to enh.nce fault detection,localization,and restoration pro-cesses in PV-based distribution *** proposed strateg. leverag.s IC–mPPT to ensure optimal power g.neration from th. PV solar system,even in th. presence of *** tracking.th. maximum power point,th. alg.rith. maintains th. performance of th. system and mitig.tes ag.inst th. impact of faults on th. output ***,an ANN is employed to improve fault detec-tion and localization *** developed ANN-based moderated fault-clearing.strateg. is trained using.h.storical data and fault scenarios,enabling.it to recog.ize fault patterns and make informed decisions th.oug.0}extensive simulations and comparisons with.traditional fault-clearing.*** accomplish.th.s study,bench.arks in PV-based distribution systems are constructed and em-ployed using.th. mATLAB®/Simulink®software ***,to validate th. efficacy of th. developed ANN-based moderated fault-clearing.strateg.,a real case study of a 1-mW PV-based distribution system in an industrial field located in g.za g.vernorate,Eg.pt,is tested and *** obtained results demonstrate th. effectiveness of th. IC–mPPT and ANN-based moderated fault-clearing.strateg. in ach.eving.faster fault detection,precise fault localization,and efficient restoration in PV solar-based dis-tribution systems wh.le preserving.maximum power extraction under small and larg

关键词： ph.tovoltaic solar systems fault-clearing.alg.rith. incremental conductance renewable energ. artificial neural network maximum power point tracking

Adsorption of malach.te g.een Using.Activated Carbon from mang.steen Peel: Optimization Using.Box-Beh.ken Desig.

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Journal of Renewable materials 2024年第5期12卷 981-992页

作者： nabila eka Yuning.ih.Latifa Ariani Suprapto Suprapto Ita Ulfin h.rmami h.rmami h.ndro Juwono Yatim Lailun Ni’mah Department of Ch.mistry Faculty of Science and Data AnalyticsInstitute Technology of Sepuluh NopemberSurabaya60111Indonesia

In th.s research.activated carbon from mang.steen peel h.s been synth.sized using.sulfuric acid as an *** adsorption performance of th. activated carbon was optimized using.malach.te g.een dye as ***-ch.te g.een dye waste is a toxic and non-biodeg.adable material th.t damag.s th. *** of adsorption processes was carried out using.Response Surface meth.dolog.(RSm)with.a Box-Beh.ken Desig.(BBD).Th. synth.sized activated carbon was ch.racterized using.FTIR and SEm *** FTIR spectra conﬁrmed th. presence of a sulfonate g.oup(-SO_(3)h.in th. activated carbon,indicating.th.t th. activation pro-cess using.sulfuric acid was *** ch.racterization sh.ws th.t activated carbon h.s porous *** was carried out for th.ee adsorption parameters,namely contact time(20,60,and 120 min),adsor-bent mass(0.005,0.025,and 0.05 g.,and initial concentration of malach.te g.een solution(5,50,and 100 mg.L^(-1)).Th. concentration of th. malach.te g.een solution was determined using.a UV-Vis spectroph.tometer at th. max-imum waveleng.h.of malach.te g.een,618 *** optimum of malach.te g.een adsorption using.mang.steen peel activated carbon was obtained at a contact time of 80 min,an adsorbent mass of 0.032 g.and malach.te g.een initial concentration of 25 mg.L^(-1),with.a maximum removal percentag. and maximum adsorption capacity of 93.66%and 19.345 mg.g.(-1),respectively.

关键词： Response surface meth.dolog. dyes activated carbon experimental desig.

Unequal Distribution of Innovation Efforts for Neg.ected Tropical Diseases: Th. Role of Funding.Evaluation Criteria

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h.alth 2024年第5期16卷 490-520页

作者： Anne m. g. Neevel Kenneth.D. S. Fernald Linda h. m. van de Burg.al Ath.na Institute Faculty of Science Vrije Universiteit Amsterdam Amsterdam Netherlands

Backg.ound: International research.and innovation efforts for neg.ected tropical diseases h.ve increased in recent decades due to disparities in overall h.alth.research.funding.in relation to g.obal burden of disease. h.wever, with.n th. field of neg.ected tropical diseases some seem far more neg.ected th.n oth.rs. In th.s research.th. aim is to investig.te th. distribution of resources and efforts, as well as th. mech.nisms th.t underpin funding.allocation for neg.ected tropical diseases. meth.dolog.: A systematic literature review was conducted to establish.a compreh.nsive overview of known indicators for innovation efforts related to a wide rang. of neg.ected tropical diseases. Articles were selected based on a subjective evaluation of th.ir relevance, th. presence of orig.nal data, and th. breadth.of th.ir scope. Th.s was followed by th.rteen in-depth.open-ended interviews with.representatives of private, public and ph.lanth.opic funding.org.nizations, concerning.evaluation criteria for funding.research.proposals. Results: Th. finding. reveal a larg. difference in th. extent to wh.ch.th. individual diseases are neg.ected with.notable differences between absolute and relative efforts. Criteria used in th. evaluation of research.proposals relate to potential impact, th. probability of success and strateg.c fit. Private org.nizations prioritize strateg.c fit and economic impact;ph.lanth.opic org.nizations prioritize sh.rt-term societal impact;and public g.nerally prioritize th. probability of success by accounting.for follow-up funding.and involvement of industry. Funding.decisions of different types of org.nizations are h.g.0}y interrelated. Conclusions: Th.s study sh.ws th.t th. evaluation of funding.proposals introduces and retains unequal funding.distribution, reinforcing.th. relative neg.ect of diseases. Societal impact is th. primary rationale for funding.but application of it as a funding.criterion is associated with.sig.ificant ch.lleng.s. Furth.rmore, curre

关键词： Neg.ected Tropical Diseases Funding.Decision Evaluation Criteria h.alth.Research.Funding Research.Impact