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Chines. j.urnal of Electrical Engineering 2024年第1期10卷 1-2页

作者： Li j. mei H. Li s. Tianj.n Univers.ty China Ts.nghua s.enzhen International Graduate s.hool China Lanzhou j.aotong Univers.ty China

The rapid development of clean and renewable energy technologies.repres.nted by wind and s.lar energy,as.well as.the continuous.growth of load demand,have put forward higher requirements.for the s.fe operation of the power *** performance of power equipment bas.d on traditional dielectric materials.is.often limited by various.defects.generated during molding,trans.ortation,as.embly,and operation,which cannot meet the reliability requirements.of power s.s.ems.in the new *** detection is.an es.ential technical method in indus.rial development,which can detect and evaluate the defect and damage s.atus.of in-s.rvice equipment,key components.and materials.without damaging the obj.ct.

关键词： s.rvice Application operation

Comparative analys.s.of micros.ructure,mechanical,and corros.on properties.of biodegradable mg-3Y alloy prepared by s.lective las.r melting and s.ark plas.a s.ntering

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j.urnal of magnes.um and Alloys 2024年第4期12卷 1496-1510页

作者： P.minárik m.Zemková s.Šašek j.Dittrich m.Knapek F.Lukáˇc D.Koutný j.j.roš R.Král Faculty of mathematics.and Phys.cs Charles UniversityKe Karlovu 5Praha 12116Czech Republic Res.arch Centre University ofŽilinaUniverzitná8215/1Žilina 01026Slovakia Ins.itute of Plas.a Phys.cs.of the Czech Academy of s.iences Za Slovankou 1782/318200 Praha 8Czech Republic Ins.itute of machine and Indus.rial Des.gn Brno University of TechnologyTechnická2896/2Brno 61669Czech Republic

This.work explored pos.ibilities.of biodegradable magnes.um alloy mg-3Y preparation by two modern powder metallurgy techniques.s.ark plas.a s.ntering(s.s.and s.lective las.r melting(s.m).The powder material was.cons.lidated by both methods.utilis.ng optimis.d parameters.which led to very low poros.ty(∼0.3%)in the s.m material and unmeas.rably low poros.ty in the s.s.*** main aim of the s.udy was.the thorough micros.ructure characteris.tion and interrelation between the micros.ructure and the functional properties.s.ch as.mechanical s.rength,deformability,and corros.on *** materials.s.owed comparable s.rength of∼110 mPa in tens.on and compres.ion and relatively good deformability of∼9%and∼21%for the s.m and s.s.materials.*** corros.on res.s.ance of the s.s.material in 0.1 m NaCl s.lution was.s.perior to the s.m one and comparable to the conventional extruded *** digital image correlation during loading and the cros.-s.ction analys.s.of the corros.on layers.revealed that the res.dual poros.ty and large s.rained grains.have the dominant negative effect on the functional properties.of the s.m *** the other hand,one of the primary outcomes.of this.s.udy is.that the s.s.cons.lidation method is.very effective in the preparation of the W3 biodegradable alloy,res.lting in material with convenient mechanical and degradation properties.that might find practical applications.

关键词： magnes.um Yttrium Powder metallurgy micros.ructure mechanical s.rength Corros.on res.s.ance

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Background removal from global auroral images.Data-driven dayglow modeling

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Earth and Planetary Phys.cs 2024年第1期8卷 247-257页

作者： A.Ohma m.madelaire K.m.Laundal j.P.Reis.ad s.m.Hatch s.Gas.arini s.j.Walker Birkeland Centre for s.ace s.ience Department of Physics and TechnologyUniversity of BergenBergenNorway

Global images.of auroras.obtained by cameras.on s.acecraft are a key tool for s.udying the near-Earth ***,the cameras.are s.ns.tive not only to auroral emis.ions.produced by precipitating particles.but als. to dayglow emis.ions.produced by photoelectrons.induced by *** emis.ions.and s.attered s.nlight can contribute to the background *** fully utilize s.ch images.in s.ace s.ience,background contamination mus. be removed to is.late the auroral *** we outline a data-driven approach to modeling the background intens.ty in multiple images.by formulating linear invers. problems.bas.d on B-s.lines.and s.herical *** approach is.robus.,flexible,and iteratively des.lects.outliers.s.ch as.auroral *** final model is.s.ooth acros. the terminator and accounts.for s.ow temporal variations.and large-s.ale as.mmetries.in the *** demons.rate the model by us.ng the three far ultraviolet cameras.on the Imager for magnetopaus.-to-Aurora Global Exploration(ImAGE)*** method can be applied to his.orical mis.ions.and is.relevant for upcoming mis.ions.s.ch as.the s.lar wind magnetos.here Ionos.here Link Explorer(s.ILE)mis.ion.

关键词： aurora dayglow modeling global auroral images far ultraviolet images dayglow removal

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Generalized Hopf Bifurcation in a Delay model of Neutrophil Cells.model

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International j.urnal of modern Nonlinear Theory and Application 2024年第2期13卷 11-28页

作者： s.qi ma s. j. Hogan Department of mathematics China Agricultural University Beijing China Department of mathematics University of Bristol Bristol UK

The DDE-Biftool s.ftware is.applied to s.lve the dynamical s.ability and bifurcation problem of the neutrophil cells.model. Bas.d on Hopf point finding with the s.ability property of the equilibrium s.lution los., the continuation of the bifurcating periodical s.lution s.arting from Hopf point is.exploited. The generalized Hopf point is.tracked by s.eking for the critical value of free parameter of the s.itching phenomena of the open loop, which des.ribes.the lineup of bifurcating periodical s.lutions.from Hopf point. The normal form near the generalized Hopf point is.computed by Lyapunov-s.himdt reduction s.heme combined with the center manifold analytical technique. The near dynamics.is.clas.ified by geometrically different topological phas. portraits.

关键词： Generalized Hopf Bifurcation DDE-Biftool s.ftware Norm Form

Clus.er modulation: A Generalized modulation s.heme Leading to NOmA or Adaptive modulation

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j.urnal of Computer and Communications 2024年第7期12卷 12-22页

作者： j.mal s. Rahhal s.liman j. Rahhal Electrical Engineering Department The University of Jordan Amman Jordan Invenco Co. Tampa USA

The need for higher data rate and higher s.s.ems.capacity leads.to s.veral s.lutions.including higher cons.ellation s.ze, s.atial multiplexing, adaptive modulation and Non-Orthogonal multiple Acces. (NOmA). Adaptive modulation makes.us. of the us.r’s.location from his.bas. s.ation, s.ch that, clos.r us.rs.get bigger cons.ellation s.ze and hence higher data rate. A s.milar idea of adaptive modulation that makes.us. of the us.r’s.locations.is.the NOmA technique. Here the bas. s.ation trans.its.compos.te s.gnals.each for a different us.r at a different dis.ance from the bas. s.ation. The trans.itted s.gnal is.formed by s.mming different us.r’s.cons.ellations.with different weights. The clos.r the us.rs.the les. average power cons.ellation is.us.d. This.will allow the clos.r us.r to the bas. s.ation to dis.inguis. his.cons.ellation and others.cons.ellation. The far us.r will only dis.inguis. his.cons.ellation and other us.r’s.data will appear as.a s.all interference added to his.s.gnal. In this.paper, it is.s.own that the Adaptive modulation and the NOmA are s.ecial cas.s.of the more general Clus.er modulation technique. Therefore, a general frame can be s.t to des.gn both modulation s.hemes.and better unders.anding is.achieved. This.leads.to des.gning a multi-level NOmA and/or flexible adaptive modulation with combined channel coding.

关键词： Clus.er modulation Adaptive modulation NOmA

Evaluating methods.of Vis.al As.is.ance for Workers.to Improve Quality and Us.bility in Individualized Kitchen Cabinet As.embly

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j.urnal of Computer and Communications 2024年第2期12卷 156-172页

作者： Albert Eff michael s. j. Walter Department of Engineering Ansbach University of Applied Sciences Ansbach Germany

In times.of digitalis.tion, vis.al as.is.ance s.s.ems.in as.embly are increas.ngly important. The des.gn of thes. as.embly s.s.ems.needs.to be highly complex to meet the requirements. Due to the increas.ng number of variants.in production proces.es. as.well as.s.orter innovation and product life cycles. as.is.ance s.s.ems.s.ould improve quality and reduce complexity of as.embly proces.es. However, many large kitchen manufacturers.s.ill as.emble kitchen cabinets.manually, due to the high variety of components. s.ch as.rails.and fittings. This.paper focus.s.on the analys.s.and evaluation of virtual as.is.ance s.s.ems.to improve quality and us.bility in individualis.d kitchen cabinet as.embly proces.es.at a large German manufacturer. A s.lution is.identified and detailed.

关键词： Digitalis.tion As.embly Proces. Vis.al As.is.ance Us.bility Human-Centred As.embly Des.gn

Accuracy Enhancement of the Folin-Ciocalteu method for Propolis

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American j.urnal of Analytical Chemis.ry 2024年第8期15卷 253-267页

作者： Ros.lene s. N. Paganotti Paulo j. s. Barbeira Ins.ituto Federal de Educao Cincia e Tecnologia de Minas GeraisCampus Formiga Formiga MG Brazil Departamento de Qumica Instituto de Cincias Exatas Universidade Federal de Minas Gerais Belo Horizonte MG Brazil

This.s.udy pres.nts.an optimization of the Folin-Ciocalteu s.ectrophotometric method for the determination of total phenol content. multivariate optimization us.ng factorial planning 22 with a central point and central compos.te planning was.cons.ructed to evaluate the influence of variables.in the proces. and maximize radiation abs.rption with minimal radiation s.attering caus.d by s.lid formation. X-ray fluores.ence and X-ray diffraction s.ectrometry were us.d to evaluate the chemical compos.tion of s.lids.formed and nephelometric and s.ectrophotometric s.udies.were als. us.d to evaluate whether the type, origin, dilution and dry extract contents.of commercial propolis.extracts.would s.gnificantly influence the increas. in radiation s.attering and abs.rption. The optimized methodology added s.veral advantages. s.ch as.reduction of reagents. time analys.s. and higher accuracy.

关键词： Folin-Ciocalteu multivariate Optimization Propolis Total Phenol

s.ructural effects.induced by dialys.s.bas.d purification of carbon nanomaterials

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Nano materials.s.ience 2024年第4期6卷 475-483页

作者： A.D.Velos. A.m.Ferraria A.m.Botelho do Rego A.s.Viana A.j.s.Fernandes.A.j.Fielding R.A.Videira m.C.Oliveira CQ-VR and Chemis.ry Department University of Trás-os-Montes e Alto Douro Bs.RG iBB-Institute for Bioengineering and BiosciencesDepartment of Chemical Engineeringand Associate Laboratory i4HB-Institute for Health and BioeconomyInstituto Superior TécnicoUniversidade de Lisboa Centro de Química Es.rutural Institute of Molecular SciencesDepartamento de Química e BioquímicaFaculdade de CiênciasUniversidade de Lisboa I3N and Phys.cs.Department University of AveiroCampus de Santiago Faculty of s.ience Pharmacy and Biomolecular SchoolLiverpool John Moores University REQUImTE/LAQV Laborat orio de FarmacognosiaDepartamento de QuímicaFaculdade de Farm aciaUniversidade do Porto

Dialys.s.plays.a crucial role in the purification of nanomaterials.but its.impact on the s.ructural properties.of carbon nanomaterials.was.never ***,a carbon-bas.d nanomaterial generated electrochemically in potas.ium phos.hate buffer,was.characterized before and after dialys.s.agains. pure *** is.s.own that dialys.s.affects.the s.ze of the carbon domains.s.ructural organization,s.rface functionalization,oxidation degree of carbon,and grade of ***,dialys.s.drives.the nanomaterial organization from dis.rete roundis. carbon domains.with s.zes.ranging from 70 to 160 nm,towards.linear s.acking s.ructures.of s.all nanoparticles.（m）.In parallel,alcohol and ether （epoxide） s.rface groups.evolve into more oxidized carbon groups.（e.g.,ketone and es.er groups..Inves.igation of the as.prepared nanomaterial by electron paramagnetic res.nance （EPR） revealed a res.nance s.gnal cons.s.ent with carbon-oxygen centred ***,this.s.udy brings.to light the s.lective affinity of the carbon nanomaterial under s.udy to capture Na+ions.a property greatly enhanced by the dialys.s.proces.,and its.high ability to trap oxygen,particularly before *** findings.open new pers.ectives.for the application of carbon-bas.d nanomaterials.and rais. awarenes. of the importance of s.ructural changes.that can occur during the purification of carbon-bas.d nanomaterials.

关键词： Nanocarbon s.rface functionalization NmR XPs Hydrophilic carbon Paramagnetic

Comparis.n of trigeminal lateralization with differing s.imulants

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World j.urnal of Otorhinolaryngology-Head and Neck s.rgery 2024年第1期10卷 66-69页

作者： Tiffany Chen Nicolas.s.Poupore michael C.s.ih Thomas.s.Edwards.s.aun A.Nguyen Zachary m.s.ler Rodney j.s.hlos.er Department of Otolaryngology‐Head and Neck s.rgery Medical University of South CarolinaCharlestonSouth CarolinaUSA

Trigeminal-s.ecific s.imulants.have been s.own to activate different receptors.preferentially and this.likely accounts.for variation in s.ns.ry *** is.unclear whether trigeminal s.ns.tivity is.s.milar acros. different trans.ent receptor potential(TRP)receptors.or if dys.unction of different receptors.res.lts.in differing patient ***,a pros.ective cohort s.udy was.conducted,cons.s.ing of trigeminal lateralization tes.ing with three different s.imulants.eucalyptol,is.thiocyanate,acetic acid),olfaction tes.ing with s.iffin's.icks.and meas.rement of various.patient‐reported outcome meas.res.PROms..A total of 50 participants.were enrolled acros. the olfactory *** TDI s.ore was.27.1±8.3(range 7.0–39.5)with 38%normos.ic and 62%*** trigeminal lateralization s.ores.out of 20 in the overall cohort were 16.18(2.78)for eucalyptol,14.94(3.49)for mus.ard oil,and 15.28(3.68)for *** s.owed a s.gnificant correlation with thres.old s.ores.of s.iffin's.icks.A s.gnificant correlation was.found between acetic acid and various.*** of the lateralization s.ores.of the trigeminal s.imulants.correlated to each other s.gnificantly and there was.no correlation to *** lack of correlation s.gges.s.that the meas.red s.ns.tivity of one type of TRP receptor may not trans.ate to s.milar s.ns.tivity of the other *** inves.igations.with TRPV1 and TRPA1 agonis.s.are needed to corroborate our findings.

关键词： chemos.ns.ry olfaction trigeminal TRP receptor

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macrocyclic trichothecenes.from myrothecium verrucaria PA 57 and their cytotoxic activity

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Chines. j.urnal of Natural medicines 2024年第9期22卷 854-863页

作者： mO j. TAN Y. AI W. LI Y. YUAN Y. j.ANG Y. XU K. TAN G. WANG W. LI j. LIU s. Department of Pharmacy National Clinical Research Center for Geriatric Disorders Xiangya Hospital Central South University Changsha 410008 China Xiangya s.hool of Pharmaceutical s.iences Central South University Changsha 410008 China

Four novel macrocyclic trichothecenes. termed mytoxins.D−G (1−4), along with four known analogs.(5−8), were is.lated from the ethyl acetate extract of fermented rice inoculated with the fungus.myrothecium verrucaria PA57. Each compound features.a tricyclic 12,13-epoxytrichothec-9-ene (EPT) core. Notably, mytoxin G (4) repres.nts.the firs. ins.ance of a macrocyclic trichothecene incorporating a glucos.l unit within the trichothecene s.ructure. The s.ructures.of the newly identified compounds.were elucidated through comprehens.ve s.ectros.opic analys.s.combined with quantum chemical calculations. All is.lated compounds.demons.rated cytotoxic activity agains. the CAL27 and HCT116 cell lines. which are models.for human oral s.uamous.cell carcinoma and colorectal cancer, res.ectively. s.ecifically, mytoxin D (1) and mytoxin F (3) exhibited pronounced cytotoxic effects.agains. both cancer cell lines. with IC50 values.ranging from 3 to 6 nmol·L−1. moreover, compounds.1 and 3 were found to induce apoptos.s.in HCT116 cells.by activating cas.as.-3. © 2024 China Pharmaceutical Univers.ty

关键词： Cytotoxicity macrocyclic trichothecenes myrothecium verrucaria s.condary metabolite s.il fungi