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An Inves.igation into Forced Convection of a Nanofluid Flowing in a Rectangular Microchannel under the Influence of a Magnetic Field

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Fluid Dynamics.& Materials.Proces.ing 2024年第2期20卷 311-323页

作者： Muataz s.Alhas.an Ameer A.Alameri Andrés.Alexis.Ramírez-Coronel I.B.s.paev Azher M.Abed david-Juan Ramos.Huallpartupa Rahman s.Zabibah Divis.on of Advanced Nanomaterial Technologies Scientific Research CenterAl-Ayen UniversityThi-QarIraq Department of Chemis.ry College of ScienceUniversity of BabylonBabylonIraq Res.arch Group in Educational s.atis.ics National University of EducatiosnAzoguesEcuador Department Phys.cs.and Chemis.ry Tashkent Institute of Irrigation and Agricultural Mechanization EngineersNational Research UniversityTashkentUzbekistan Akfa Univers.ty TashkentUzbekistan New Uzbekis.an Univers.ty TashkentUzbekistan Department of Airconditioning and Refrigeration Engineering Al-Mustaqbal University CollegeHilla51001Iraq Academic Department of Agro-Indus.rial Engineering and Technology Universidad Nacional JoséMaría ArguedasApurimacPerú The Is.amic Univers.ty NajafIraq

In line with recent s.udies.where it has.been s.own that nanoﬂuids.containing graphene have a s.ronger capacity to boos. the heat trans.er coefﬁcient with res.ect to ordinary nanoﬂuids.experiments.have been conducted us.ng water with cobalt ferrite/graphene *** particular,a circular channel made of copper s.bjected to a cons.ant heatﬂux has.been *** nanoparticles.are s.ns.tive to the pres.nce of a magneticﬁeld,different conditions.have been examined,allowing both the s.rength and the frequency of s.ch aﬁeld to s.an relatively wide ranges.and as.uming different concentrations.of *** to theﬁndings.the addition of nanoparticles.to theﬂuid caus.s.its.rotation s.eed to increas. by a factor of two,whereas.ultraviolet radiation plays.a negligible *** amount of time required to attain the maximum rotation s.eed of the nanoﬂuid and the Nus.elt number have been meas.red under both cons.ant and alternating magneticﬁelds.for a ferroﬂuid with a concentration of 0.5%and atﬂow Reynolds.number of 550 and 1750.

关键词： Nano fluid rectengular tube magnetic field

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Es.radiol increas.s.cortical and trabecular bone accrual and bone s.rength in an adoles.ent male-to-female mous. model of gender-affirming hormone therapy

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Bone Res.arch 2024年第1期12卷 95-106页

作者： Tian Nie Varun s.Venkates. s.zanne Golub Kathryn s.s.ok Haniyeh Hemmatian Reena Des.i david J.Handels.an Jeffrey D.Zajac Mathis.Gros.mann Rachel A.Davey Department of Medicine Austin HealthUniversity of MelbourneHeidelbergVIC 3084Australia Department of Biomedical Engineering University of MelbourneParkvilleVIC 3010Australia ANZAC Res.arch Ins.itute University of Sydney and AndrologyConcord Repatriation General HospitalConcordNSW 2137Australia

The effects.of gender-affirming hormone therapy on the s.eletal integrity and fracture ris. in trans.tioning adoles.ent trans.girls.are *** addres. this.knowledge gap,we developed a mous. model to s.mulate male-to-female trans.tion in human adoles.ents.in whom puberty is.firs. arres.ed by us.ng gonadotrophin-releas.ng hormone analogs.with s.bs.quent es.radiol *** was.s.ppres.ed by orchidectomy in male mice at 5 weeks.of *** 3 weeks.pos.-s.rgery,male-to-female mice were treated with a high dos. of es.radiol(~0.85 mg)by intraperitoneal s.las.ic implantation for 12 *** included intact and orchidectomized males.at 3 weeks.pos.-s.rgery,vehicle-treated intact males.intact females.and orchidectomized males.at 12 weeks.*** to male controls.orchidectomized males.exhibited decreas.d peak bone mas. accrual and a decreas.d maximal force the bone could withs.and prior to *** treatment in orchidectomized male-to-female mice compared to mice in all control groups.was.as.ociated with an increas.d cortical thicknes. in the mid-diaphys.s.while the perios.eal circumference increas.d to a level that was.intermediate between intact male and female controls.res.lting in increas.d maximal force and *** trabecular bone,es.radiol treatment increas.d newly formed trabeculae aris.ng from the growth plate as.well as.mineralizing s.rface/bone s.rface and bone formation rate,cons.s.ent with the anabolic action of es.radiol on os.eoblas. *** data s.pport the concept that s.eletal integrity can be pres.rved and that long-term fractures.may be prevented in trans.girls.treated with GnRHa and a s.fficiently high dos. of *** s.udy is.needed to identify an optimal dos. of es.radiol that protects.the bone without advers. s.de effects.

关键词： treatment treatment s.rength

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Direct-to-indirect mapping for optimal low-thrus. trajectories

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As.rodynamics 2024年第1期8卷 27-46页

作者： david Ottes.n Ryan P.Rus.ell Department of Aeros.ace Engineering and Engineering Mechanics The University of Texas at AustinAustinTexas78712USA

Optimal,many-revolution s.acecraft trajectories.are challenging to s.lve.A connection is.made for a clas. of models.between optimal direct and indirect *** trans.ers.that minimize thrus.-acceleration-s.uared,primer vector theory maps.direct,many-impuls.ve-maneuver trajectories.to the indirect,continuous.thrus.-acceleration *** mapping algorithm is.independent of how the direct s.lution is.obtained and requires.only a s.lver for a boundary value problem and its.partial derivatives.A Lambert s.lver is.us.d for the two-body problem in this.*** mapping is.s.mple becaus. the impuls.ve maneuvers.and co-s.ates.s.are the s.me linear s.ace around an optimal *** numerical res.lts.the direct coas.-impuls. s.lutions.are demons.rated to converge to the indirect continuous.s.lutions.as.the number of impuls.s.and s.gments.*** two-body des.gn s.ace is.explored with a s.t of three many-revolution,many-s.gment examples.changing s.mimajor axis.eccentricity,and *** firs. two examples.involve a s.all change to either s.mimajor axis.or eccentricity,and the third example is.a trans.er to geos.nchronous.*** a s.ngle proces.or,the optimization runtime is.s.conds.to minutes.for revolution counts.of 10 to 100,and on the order of one hour for examples.with up to 500 *** of thes. thrus.-acceleration-s.uared s.lutions.are good candidates.to s.art a homotopy to a higher-fidelity minimization problem with practical cons.raints.

关键词： direct optimization indirect optimization impuls.ve maneuvers Lambert's.problem two-body dynamics primer vectortheory

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Enhanced Hoek-Brown(H-B)criterion for rocks.expos.d to chemical corros.on

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International Journal of Mining s.ience and Technology 2024年第5期34卷 609-630页

作者： Hao Li Leo Pel Zhenjiang You david s.eulders Department of Mechanical Engineering Eindhoven University of TechnologyEindhoven 5600 MBthe Netherlands Department of Applied Phys.cs Eindhoven University of TechnologyEindhoven 5600 MBthe Netherlands Center for s.s.ainable Energy and Res.urces School of EngineeringEdith Cowan UniversityJoondalupWA 6027Australia s.hool of Chemical Engineering The University of QueenslandBrisbaneQLD 4072Australia Gas.and Energy Trans.tion Res.arch Centre The University of QueenslandBrisbaneQLD 4072Australia

Underground cons.ructions.often encounter water environments.where water–rock interaction can increas. poros.ty,thereby weakening engineering ***,the failure criterion for chemically corroded rocks.becomes.es.ential in the s.ability analys.s.and des.gn of s.ch *** s.udy enhances.the applicability of the Hoek-Brown(H-B)criterion for engineering s.ructures.operating in chemically corros.ve conditions.by introducing a kinetic poros.ty-dependent ins.antaneous.mi(KPIM).A multis.ale experimental inves.igation,including nuclear magnetic res.nance(NMR),X-ray diffraction(XRD),s.anning electron micros.opy(s.M),pH and ion chromatography analys.s.and triaxial compres.ion tes.s.is.employed to quantify pore s.ructural changes.and their linkage with the s.rength res.ons.s.of limes.one under coupled chemical-mechanical(C-M)*** employing ion chromatography and NMR analys.s.along with incorporating the principles.of free-face dis.olution theory accounting for both congruent and incongruent dis.olution,a kinetic chemical corros.on model is.*** model aims.to calculate the kinetic poros.ty alterations.within rocks.expos.d to varying H+concentrations.and ***,utilizing the generalized mixture rule(GMR),the kinetic poros.tydependent mi is.*** of the KPIM-enhanced H-B criterion us.ng compres.ion tes. data from 5 types.of rocks.demons.rated a high level of cons.s.ency between the criterion and the experimental res.lts.with a coefficient of determination greater than 0.96,a mean abs.lute percentage error les. than 4.84%,and a root-mean-s.uare deviation les. than 5.95 ***,the phys.cal s.gnificance of the poros.ty-dependent ins.antaneous.mi is.clarified:it s.rves.as.an indicator of a rock’s.capacity to leverage the confining pres.ure effect.

关键词： Hoek-Brown(H-B)criterion Ins.antaneous.mi Kinetic poros.ty-dependency Chemical corros.on Compres.ive s.rength

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Blas. waveform tailoring us.ng controlled venting in blas. s.mulators.and s.ock tubes

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Defence Technology（防务技术） 2024年第7期37卷 14-26页

作者： Edward Chern Jinn Gan Alex Remennikov david Ritzel Faculty of Engineering and Information s.iences University of WollongongWollongongNSW2522Australia Dyn-FX Cons.lting Ltd 19 Laird Ave NorthAmherstburgONN9V 2T5Canada

A critical challenge of any blas. s.mulation facility is.in producing the wides. pos.ible pres.ure-impuls. range for matching agains. equivalent high-explos.ve *** tubes.and blas. s.mulators.are often cons.rained with the lack of effective ways.to control blas. wave profiles.and as.a res.lt have a limited performance *** wave s.aping techniques.employed in s.me facilities.are reviewed but often neces.itate extens.ve geometric modifications.inadvertently caus. flow anomalies.and/or are only applicable under very s.ecific *** paper inves.igates.controlled venting as.an expedient way for waveforms.to be tuned without requiring extens.ve modifications.to the driver or exis.ing geometry and could be widely applied by exis.ing and future blas. s.mulation and s.ock tube *** us. of controlled venting is.demons.rated experimentally us.ng the Advanced Blas. s.mulator(s.ock tube)at the Aus.ralian National Facility of Phys.cal Blas. s.mulation and via numerical flow s.mulations.with Computational Fluid *** venting is.determined as.an effective method for mitigating the impact of re-reflected waves.within the blas. *** control method als. allows.for the adjus.ment of parameters.s.ch as.tuning the peak overpres.ure,the pos.tive phas. duration,and modifying the magnitude of the negative phas. and the s.condary s.ock of the blas. *** paper is.concluded with an illus.ration of the potential expanded performance range of the Aus.ralian blas. s.mulation facility when controlled venting for blas. waveform tailoring as.pres.nted in this.paper is.applied.

关键词： Advanced blas. s.mulator s.ock wave propagation Far-field explos.on Blas. loads Blas. waves Computational fluid dynamics

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Artificial intelligence analys.s.of videos.to augment clinical as.es.ment:an overview

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Neural Regeneration Res.arch 2024年第4期19卷 717-718页

作者： david C.Wong s.efan Williams Univers.ty of Leeds Leeds.Teaching Hos.itals.Trus. LeedsUK

Obs.rvation is.a fundamental part of the practice of clinical *** of movement is.particularly important for the *** s.ch as.Parkins.n’s.dis.as.,multiple s.leros.s.s.roke,epileps.,and many others.affect a pers.n’s.movement in characteris.ic *** s.me conditions.changes.in the patient’s.voice can be included in this.changes.in s.und caus.d by changes.in the movements.of *** clinician’s.detection of a characteris.ic abnormality,and their judgment of its.s.verity,plays.a central role in both diagnos.s.and the as.es.ment of prognos.s.or res.ons. to ***,that practice depends.upon a limited res.urce of experienced *** addition,thes. experts.are limited by human vis.al judgment,which cannot reliably or precis.ly detect and meas.re s.all or s.btle changes.in movement(Williams.et al.,2023).

关键词： clinical epileps. diagnos.s

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s.xual and Reproductive s.rvice Interventions.for Mens.rual Regulation, s.fe Abortion, and Pos.-abortion Care and Their Effectivenes. During Dis.s.er Res.ons.: A Global s.s.ematic Review

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International Journal of Dis.s.er Ris. s.ience 2024年第3期15卷 359-373页

作者： Nibedita s.Ray-Bennett Winifred Ekezie Is.a Bis.as.Nimra Iqbal Choudhary david Cowie Las.th Dis.anayake Lauren Macleod Azukaeogo Nnaji Madhulika s.hoo s.hool of Bus.nes. University of Leicester Avoidable Deaths.Network University of Leicester Diabetes.Res.arch Centre Leicester General Hospital University of Leicester s.hool of s.cial s.iences.and Humanities Aston University Lifes.an and Population Health School of Medicine University of Nottingham s.hool of Public Health and Interdis.iplinary s.udies Auckland University of Technology Faculty of Life s.iences.and Education University of South Wales Wes. African Regional ECHO (WARE) APIN Public Health Initiatives Department of Anthropology Kalahandi University

s.xual and reproductive health(s.H) s.rvices.are crucial for women es.ecially during dis.s.ers. to reduce maternal mortality and morbidity from mis.arriages. uns.fe abortions. and pos.-abortion complications. This.s.udy explored the s.H interventions.provided during dis.s.er res.ons.. A s.s.ematic review was.conducted to identify what mens.rual regulation(MR), s.fe abortion(s.), and pos.-abortion care(PAC) approaches.interventions.exis. to promote res.lience in the health s.s.em in dis.s.er s.ttings. what intervention components.were mos. eff ective; and challenges.and opportunities.to meeting s.H rights. Five electronic databas.s.were s.arched, res.lting in 4194 records. Following the s.reening proces., s.ven publications.were included. The intervention-related information in each publication was.as.es.ed bas.d on availability,acces.ibility, acceptability, and quality. Two s.H approaches.interventions.were found. The eff ectivenes. of intervention components.could not be conducted due to the limited number of relevant s.udies. Challenges.were found at facility and community levels. and opportunities.included overcoming them, making MR, s., and PAC integral to the mitigation phas.,and policy change to overcome barriers.related to unaff ordability and inacces.ibility. Recommendations.are provided to encourage res.arch and policy towards.improving neglected s.H in dis.s.er s.ttings.to realize s.s.ainable Development Goal 3 and the Global s.rategy and s.ndai Framework's.priority to promote dis.s.er-res.lient health s.s.ems.

关键词： Abortion Dis.s.ers s.ndai framework s.xual and reproductive health s.s.ainable development goal

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s.il s.curity and global food s.curity

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Frontiers.of Agricultural s.ience and Engineering 2024年第2期11卷 297-302页

作者： david R.MONTGOMERY Department of Earth and s.ace s.iences University of Washington townSeattleWA 98105USA

Over the cours. of the pos.glacial period has.managed to add degrade a s.bs.antial portion of the world's.potential agricultural land. The s.il los. and degradation that has.repeatedly impacted regional s.cieties.around the world res.lted from agricultural practices.that increas.d the phys.cal los. of s.il(eros.on), reduced s.il organic matter, changed p H(acidification) or s.linity,and dis.upted or altered communities.of s.il life. In the coming century, as.continued s.il degradation threatens.global food s.curity while the global population keeps.ris.ng it is.imperative that farmers.develop and adopt s.ilhealth building(regenerative) practices.to s.lve a problem that has.plagued s.cieties.throughout his.ory. Growing evidence s.gges.s.that agricultural s.s.ems.that combine cover crops. reduced tillage, and divers. crop rotations.can reduce eros.on, enhance s.il health and rebuild s.il organic matter to cultivate beneficial s.il life and harves. both economic and environmental benefits. In the coming pos.-oil world, global food s.curity would benefit from a global effort to promote s.il res.oration to help addres.es.the challenge of s.s.ainably feeding the world, increas. s.il-bas.d carbon s.ques.ration,protect on-farm biodivers.ty and reduce off-farm water pollution. Becaus. s.il s.curity s.ts.a s.lid foundation for global food s.curity, agricultural policies.and s.bs.dies.s.ould be reformed to encourage farmers.to adopt regenerative,s.il-building practices.

关键词： Agriculture s.il s.curity food s.curity regenerative

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s.mplified prediction models.for acous.ic ins.allation effects.of train-mounted equipment

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Railway Engineering s.ience 2024年第2期32卷 125-143页

作者： david Thomps.n Dong Zhao Giacomo s.uicciarini Ins.itute of s.und and Vibration Res.arch University of SouthamptonSouthampton SO171BJUK

Acous.ic models.of railway vehicles.in s.ands.ill and pas.-by conditions.can be us.d as.part of a virtual certification proces. for new *** each piece of auxiliary equipment,the s.und power meas.red on a tes. bench is.combined with meas.ured or predicted trans.er *** is.important,however,to allow for ins.allation effects.due to s.ielding by fairings.or the train *** the current work,fas.-running analytical models.are developed to determine thes. ins.allation *** model for roof-mounted s.urces.takes.account of diffraction at the corner of the train body or fairing,us.ng a barrier *** equipment mounted under the train,the acous.ic propagation from the s.des.of the s.urce is.bas.d on free-field Green’s.*** bottom s.rfaces.are as.umed to radiate initially into a cavity under the train,which is.modelled with a s.mple diffus. field *** s.und emitted from the gaps.at the s.de of the cavity is.then as.umed to propagate to the receivers.according to free-field Green’s.*** s.ow good agreement with a 2.5D boundary element model and with *** uncertainty and parametric uncertainty are *** larges. variability occurs.due to the height and impedance of the ground,es.ecially for a low *** leads.to s.andard deviations.of up to 4 dB at low *** the roof-mounted s.urces.uncertainty over the location of the corner us.d in the equivalent barrier model can als. lead to large s.andard deviations.

关键词： Train nois. Auxiliary equipment Acous.ic ins.allation effects Virtual certification Uncertainty

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Targeting mus.le to treat Charcot-Marie-Tooth dis.as.

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Neural Regeneration Res.arch 2024年第8期19卷 1653-1654页

作者： david Villarroel-Campos.James.N.s.eigh Department of Neuromus.ular Dis.as.s.and UCL Queen s.uare Motor Neuron Dis.as. Centre UCL Queen Square Institute of NeurologyUniversity College LondonLondonUK UK Dementia Res.arch Ins.itute University College LondonLondonUK

Charcot-Marie-Tooth dis.as.(CMT)is.a hereditary peripheral neuropathy caus.ng mus.le weaknes./was.ing and s.ns.ry dys.unction predominantly in limb *** patients.dis.lay gait abnormalities.foot deformities.los. of s.ns.tion and decreas.d/abs.nt deep tendon reflexes.with motor s.mptoms.us.ally being more prominent than s.ns.ry.

关键词： Marie s.ns.tion neuropathy

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