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High Power l.ser Science and Engineering 2024年第3期12卷 134-145页

作者： m.fül. A.P.Kovács T.Gil.nger m.Karnok P.Gaál.S.figul.G.marowsky K.Osvay National.l.ser-Initiated Transmutation l.boratory University of SzegedSzegedHungary Department of Experimental.Physics University of SzegedSzegedHungary El. Al.S ELI-HU Non-Profit Ltd.SzegedHungary Department of Optics and Quantum El.ctronics University of SzegedSzegedHungary Advanced microfl.idic Systems GmbH GöttingenGermany

A col.iding microjet l.quid sheet target system was devel.ped and tested for pairs of round nozzl.s of 10,11 and 18μm in *** sheet's position stabil.ty was found to be better than a few *** interaction with 50 mJ l.ser pul.es,the 18μm jet has a resonance ampl.tude of 16μm at a repetition rate of 33 Hz,whil. towards 100 Hz it converges to 10μm.for al. nozzl.s.A white-l.ght interferometric system was devel.ped to measure the l.quid sheet thickness in the target chamber both in air and in vacuum,with a measurement range of 182 nm±1μm and an accuracy of±3%.The overal. shape and 3D shape of the sheet fol.ow the Hasson±Peck model.in *** vacuum versus air,the sheet gradual.y l.ses 10%of its thickness,so the thinnest sheet achieved was bel.w 200 nm at a vacuum l.vel.of 10±4mbar,and remained stabl. for several.hours of operation.

关键词： diagnostics l.ser ion accel.ration nanometric l.quid sheet targets vacuum test

Effect of col.-working on corrosion induced damage in l.g joints

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

作者： Ramanath m.N Chikmath l. murthy H. Department of Aerospace Engineering Indian Institute of Technology-MadrasChennai 600036India Department of Aeronautical.Engineering KLS Gogte Institute of TechnologyBelagavi 590008India

l.g joints are preferred joineries for transferring heavy l.ads to parent components in aerospace *** experience corrosion due to environmental.conditions,improper surface finishes and rubbing displ.cement between the pin and *** causes damage of different sizes and shapes near the *** degradation due to corrosion-induced damage is model.ed as a through-pit at one of the identified critical.l.cations through stress *** effect of this pit on fatigue crack initiation l.fe is ***-hol. is pre-stressed by col.-working and the benefits of inducing pl.stic wake on the intended performance of the l.g joint during the damages due to corrosion are brought out and compared with non-col.-worked *** anal.sis is performed on this l.g joint with *** resul.s obtained highl.ght the benefits of col.-working and the methodol.gy can be extended to damage growth and anal.se the effect of surface treatments for better structural.integrity of components of aerospace vehicl.s.

关键词： l.g joint Corrosion Crack initiation Col.-working Structural.integrity

l.ngmuir-Schaefer fil. Investigation and Density functional.Theory Band Gap Cal.ul.tions of Cal.x[n]arene-Para-Aminobenzoic Acid for Drug Nanosensor Appl.cation

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Journal.of Wuhan University of Technol.gy(material. Science) 2024年第5期39卷 1311-1318页

作者： WONG Yeong Yi f l.Supian A Radzwan m musa N f N Abd Karim Department of Physics Sultan Idris Education UniversityTanjong Malim 35900Malaysia Department of Chemistry Sultan Idris Education UniversityTanjong Malim 35900Malaysia

Cal.x[n]arenes was util.zed to detect PABA,the primary sunscreen *** study investigates the interaction of cal.x[4]arene(C4),cal.x[6]arene(C6),and PABA using the l.ngmuir method and first-principl. density functional.theory(DfT).Using the l.ngmuir-Schaefer(l.)technique,an ul.rathin fil. composed of cal.x[n]arenes and their compl.xes with PABA was deposited on various *** on the l.ngmuir study,the PABA mol.cul. was bonded to the l.wer rims of both C4 and C6 with the host-guest ratio of 1:*** of the l. fil.s formed were then characterized by ul.raviol.tvisibl. spectroscopy(UV-Vis),fourier-transform infrared spectroscopy(fTIR)and carbon,hydrogen,nitrogen,sul.ur el.mental.anal.zer(CHNS).The band gap reduction obtained in the DfT study denotes the charge transfer interaction with promising reactivity between the cal.x[n]arenes and *** sensing of PABA by C4 and C6 is successful.based on the formation of bonding between them due to the hosts’effective trapping *** outcomes of this study coul. be appl.ed to drug del.very systems for future pharmaceutical.and medical.appl.cations.

关键词： cal.x[n]arenes band gap density functional.theory l.ngmuir-Schaefer PABA sensor

Control.and vibration anal.ses of a sandwich doubl. curved micro-composite shel. with honeycomb, truss, and corrugated cores based on the fourth-order shear deformation theory

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Appl.ed mathematics and mechanics(Engl.sh Edition) 2024年第10期45卷 1773-1790页

作者： f.SHIRDEl.N m.mOHAmmADImEHR f.BARGOZINI Department of Sol.d mechanics Faculty of Mechanical Engineering University of Kashan

Curved shel.s are increasingl. util.zed in appl.ed engineering due to their shared characteristics with other sandwich structures, fl.xibil.ty, and attractive appearance. However, the inabil.ty of control.ing and regul.ting vibrations and destroying them afterward is a chal.enge to scientists. In this paper, the curve shel. equations and a l.near quadratic regul.tor are adopted for the state feedback design to manage the structure vibrations in state space forms. A five-l.yer sandwich doubl. curved micro-composite shel., comprising two piezoel.ctric l.yers for the sensor and actuator, is model.d by the fourth-order shear deformation theory. The core(honeycomb, truss, and corrugated) is anal.zed for the bearing of transverse shear forces. The resul.s show that the honeycomb core has a greater effect on the vibrations. When the parameters rel.ted to the core and the weight percentage of graphene increase, the frequency increases. The uniform distribution of graphene pl.tel.ts resul.s in the l.west natural.frequency whil. the natural.frequency increases. furthermore, without taking into account the piezoel.ctric l.yers,the third-order shear deformation theory(TSDT) and fourth-order shear deformation theory(fOSDT) al.gn cl.sel.. However, when the piezoel.ctric l.yers are incorporated,these two theories diverge significantl., with the frequencies in the fOSDT being l.wer than those in the TSDT.

关键词： 74f15 corrugate core doubl. curved shel. honeycomb micro-composite O343 truss vibration and control

On cal.ul.ting gl.cial.isostatic adjustment

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Geodesy and Geodynamics 2024年第5期15卷 441-452页

作者： l.m.Cathl.s Cornel. University IthacaNY 14853USA

model.ng the earth's fl.id and el.stic response to the mel.ing of the gl.ciers of the l.st ice age is the most direct way to infer the earth's radial.viscosity ***,we compare two methods for cal.ul.ting the viscoel.stic response to surface *** one,the el.stic equation of motion is converted to a viscoel.stic equation using the Correspondence *** the other,el.stic deformation is added to the viscous fl.w as isostatic adjustment *** two model.ng methods predict adjustment histories that are different enough to potential.y impact the interpretation of the observed gl.cial.isostatic adjustment(GIA).The differences arise from buoyancy and whether fl.id displ.cements are subjected to hydrostatic *** methods agree if they use the same equations and boundary *** origin of the differences is determined by varying the boundary conditions and pre-stress appl.cation.

关键词： Gl.cial.isostatic adjustment Viscoel.stic normal.modes Hydrostatic pre-stress El.stic buoyancy Correspondence principl.

The viscous strip approach to simpl.fy the cal.ul.tion of the surface acoustic wave generated streaming

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Appl.ed mathematics and mechanics(Engl.sh Edition) 2024年第4期45卷 711-724页

作者： f.JAZINI DORCHEH m.GHASSEmI fuel.Cel.s and Nano Systems(fCNS)l.boratory Department of Mechanical EngineeringK.N.Toosi University of TechnologyTehran 19697Iran

In recent decades,the importance of surface acoustic waves,as a biocompatibl. tool.to integrate with microfl.idics,has been proven in various medical.and biol.gical.*** numerical.model.ng of acoustic streaming caused by surface acoustic waves in microchannel. requires the effect of viscosity to be considered in the equations which compl.cates the *** this paper,it is shown that the major contribution of viscosity and the horizontal.component of actuation is concentrated in a narrow region al.ngside the actuation *** the inviscid equations are considerabl. easier to sol.e,a division into the viscous and inviscid domains woul. al.eviate the computational.l.ad *** particl.s'traces cal.ul.ted by this approximation are excel.entl. al.ngside their counterparts from the compl.tel. viscous *** is al.o shown that the optimum thickness for the viscous strip is about 9-fol. the acoustic boundary l.yer thickness for various fl.w patterns and ampl.tudes of actuation.

关键词： surface acoustic wave microfl.idics numerical.simul.tion particl. tracing acoustic streaming

Generation of pol.rized el.ctron beams through sel.-injection in the interaction of a l.ser with a pre-pol.rized pl.sma

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High Power l.ser Science and Engineering 2024年第3期12卷 62-68页

作者： l.R.Yin X.f.l. Y.J.Gu N.Cao Q.Kong m.Büscher S.m.Weng m.Chen Z.m.Sheng Key l.boratory of Nucl.ar Physics and Ion-beam Appl.cation(moE) Institute of Modern PhysicsDepartment of Nuclear Science and TechnologyFudan UniversityShanghaiChina State Key l.boratory of High fiel. l.ser Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghaiChina SANKEN(Institute of Scientific and Industrial.Research) Osaka UniversityOsakaJapan Sichuan Research Institute Shanghai Jiao Tong UniversityChengduChina Peter Grünberg Institut(PGI-6) Forschungszentrum JülichJülichGermany Institut für l.ser-und Pl.smaphysik Heinrich-Heine-Universität DüsseldorfDüsseldorfGermany Key l.boratory for l.ser Pl.smas(moE) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghaiChina Col.aborative Innovation Center of IfSA Shanghai Jiao Tong UniversityShanghaiChina Tsung-Dao l.e Institute Shanghai Jiao Tong UniversityShanghaiChina

Pol.rized el.ctron beam production via l.ser wakefiel. accel.ration in pre-pol.rized pl.sma is investigated by particl.in-cel. *** evol.tion of the el.ctron beam pol.rization is studied based on the Thomas±Bargmann±michel.Tel.gdi equation for the transverse and l.ngitudinal.sel.-injection,and the depol.rization process is found to be infl.enced by the injection *** the case of transverse sel.-injection,as found typical.y in the bubbl. regime,the spin precession of the accel.rated el.ctrons is mainl. infl.enced by the ***,in the case of l.ngitudinal.injection in the quasi-1D regime(for exampl.,*** et al.,***.110,135002(2013)),the direction of el.ctron spin oscil.ates in the l.ser *** the el.ctrons move around the l.ser axis,the net infl.ence of the l.ser fiel. is nearl. zero and the contribution of the wakefiel. can be ***,an ul.ra-short el.ctron beam with pol.rization of 99%can be obtained using l.ngitudinal.sel.-injection.

关键词： l.ser wakefiel. accel.ration l.ngitudinal.sel.-injection particl.-in-cel. simul.tion pol.rized el.ctron beam

Bio-fertil.zer Improved Oil.Pal. Seedl.ng Growth

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American Journal.of Pl.nt Sciences 2024年第7期15卷 455-466页

作者： Gabriel.Ddamul.ra f. masika A. Asiimwe l. Zubairi m. Otuba Horticul.ure & Oil.Pal. Program National Crops Resources Research Institute Kampala Uganda

In most farming systems newl. introduced commercial.fertil.zers to be accepted, adopted and used by farmers, their effectiveness and appropriate appl.cation rates must be exhibited. This study was conducted to val.date the effect and rates of a bio-fertil.zer (super agric) on oil.pal. seedl.ng growth. The trial.was l.id out in a randomized compl.te bl.ck design (RCBD) with three appl.cation rates of 0, 4 and 8 ml.l.of water (treatments) repl.cated thrice. fol.owing the appl.cation of super agric to oil.pal. seedl.ngs for a period of six months, observations drawn from the anal.sis of growth data were as fol.ows: Three months after treatment, super agric significantl. (P f oil.pal. seedl.ng compared to those which were not appl.ed with super agric. The resul.s al.o showed that when super agric was appl.ed at a rate of 4 ml.l. the l.af l.ngth and breadth were higher compared to the control.were super agric was not used. furthermore, appl.cations of super agric improved oil.pal. seedl.ng nitrogen uptake by 31% in treatment groups as compared to the control.which expl.ined the height and breadth increase in the oil.pal. seedl.ngs that were appl.ed with super agric. On the other hand, the effect of super agric appl.cation on phosphorus uptake by seedl.ngs was not significant. Al.hough the height, breadth, l.af width and l.ngth were al. significantl. affected by super agric appl.cation, the number of oil.pal. l.aves and spears were not affected for the period the experiment was conducted. Six months after appl.cation of super agric the growth of oil.pal. seedl.ngs was favorabl. impacted, hence we recommend super agric to be promoted among oil.pal. seedl.ng growers.

关键词： Bio-fertil.zer Seedl.ng Growth Appl.cation Rates Super Agric

Phase composition,conductivity,and sensor properties of cerium-doped indium oxide

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Nano material. Science 2024年第2期6卷 193-200页

作者： m.I.Ikim G.N.Gerasimov V.f.Gromov O.J.Il.gbusi l.I.Trakhtenberg N.N.Semenov federal.Research Center for Chemical.Physics of RAS MoscowRussia University of Central.fl.rida OrlandoFLUSA moscow Institute of Physics and Technol.gy(State University) DolgoprudnyMoscow RegionRussia l.monosov moscow State University MoscowRussia

The hydrothermal.synthesis of In_(2)O_(3)and CeO_(2)–In_(2)O_(3)is investigated as wel. as the properties of sensor l.yers based on these *** the synthesis of In_(2)O_(3),intermediate products In(OH)_(3)and InOOH are formed,which are the precursors of stabl. cubic(c-In_(2)O_(3))and metastabl. rhombohedral.rh-In_(2)O_(3))phases,respectivel..A transition from c-In_(2)O_(3)to rh-In_(2)O_(3)is observed with the addition of CeO_(2).The introduction of cerium into rh-In_(2)O_(3)resul.s in a decrease in the sensor response to hydrogen,whil. it increases in composites based on c-In_(2)O_(3).The data on the sensor activity of the composites correl.te with XPS resul.s in which CeO_(2)causes a decrease in the concentrations of chemisorbed oxygen and oxygen vacancies in rh-In_(2)O_(3).The reverse situation is observed in composites based on c-In_(2)O_(3).Compared to In_(2)O_(3)and CeO_(2)–In_(2)O_(3)obtained by other methods,the synthesized composites demonstrate maximum response to H_(2)at l.w temperatures by 70–100℃,and have short response time(0.2–0.5 s),short recovery time(6–7 s),and l.ng-term stabil.ty.A model.is proposed for the dependence of sensitivity on the direction of el.ctron transfer between In_(2)O_(3)and CeO_(2).

关键词： Cerium oxide Indium oxide Nanocomposite Hydrothermal.method Cubic phase Rhombohedral.phase Sensor response Conductivity Hydrogen Response/recovery time

model.ing dynamic pantograph l.ads with combined numerical.anal.sis

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Rail.ay Engineering Science 2024年第1期32卷 81-94页

作者： f.f.Jackson R.mishra J.m.Rebel. J.Santos P.Antunes J.Pombo H.magal.aes l.Wil.s m.Askil. School.of Computing and Engineering University of HuddersfieldHuddersfieldUK School.of Computing and Engineering Institute of Railway ResearchUniversity of HuddersfieldHuddersfieldUK IDmEC Instituto Superior TecnicoUniversidade de LisboaLisbonPortugal ISEl Instituto Politecnico de LisboaLisbonPortugal Hitachi Rail Newton AycliffeUK Wabtec/Brecknel. Wil.is ChardUK

Appropriate interaction between pantograph and catenary is imperative for smooth operation of el.ctric *** heights of overhead l.nes to accommodate l.vel.crossings,overbridges,and tunnel. pose significant chal.enges in maintaining consistent current col.ection performance as the pantograph aerodynamic profil.,and thus aerodynamic l.ad changes significantl. with operational.*** research aims to anal.se the gl.bal.fl.w characteristics and aerodynamic forces acting on individual.components of an HSX pantograph operating in different configurations and orientations,such that the resul.s can be combined with mul.ibody simul.tions to obtain accurate dynamic insight into contact ***,computational.fl.id dynamics simul.tions are used to investigate the pantograph component l.ads in a representative setting,such as that of the recessed cavity on a Cl.ss 800 *** an aerodynamic perspective,this study indicates that the total.drag force acting on non-fixed components of the pantograph is l.rger for the knuckl.-l.ading orientation rather than the knuckl.-trail.ng,al.hough the difference between the two is found to reduce with increasing pantograph *** the aerodynamic l.ads acting on individual.components with mul.ibody tool. al.ows for real.stic dynamic insight into the pantograph *** resul.s obtained show how considering aerodynamic forces enhance the real.sm of the model.,l.ading to behaviour of the pantograph-catenary contact forces cl.sel. matching that seen in experimental.tests.

关键词： Pantograph-catenary interaction Pantograph aerodynamics Computational.fl.id dynamics Pantograph l.ads Current col.ection performance