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International Journal of Ophthalmology(Engl.sh edition) 2020年第3期13卷 438-444页

作者： gábor l.sándor gábor Tóth Dorottya szabó Irén szalai Regina lukács Anita Pék georgina Z.Tóth András Papp Zoltán Z.Nagy Hans limburg János Németh Department of Ophthalmology Semmelweis UniversityBudapest 1085Hungary Department of Ophthalmology Flór Ferenc HospitalKistarcsa 2143Hungary Department of Ophthalmology Petz Aladár HospitalGyor 9024Hungary Faculty of Health sciences Semmelweis UniversityBudapest 1088Hungary Health Information services Grootebroek 1613The Netherlands

AIM:To estimate the prevalence of blindness and visual impairment resulting from cataract in the population aged≥50 y in Hungary,and to assess the cataract surgical ***:A rapid assessment of avoidable blindness(RAAB)was conducted.A total of 3523 eligible people were randomly selected and *** participant underwent surgery for cataract was interviewed with regard to the year,place,and costs of the *** with obvious cataract were asked why they had not yet undergone surgery(barriers to surgery).REsUl.s:An estimated 12514 people were bilaterally blind;the visual acuity(VA)in 19293 people wasle wasstimated 77933 eyes are blind;98067 eyes had a VA ofstimated 277493 eyes had a VA ofll cataract surgeries were conducted in government *** age-and sexadjusted cataract surgical coverage with VAs was 90.0%.The rate of good visual outcome after surgery was 79.5%.Ocular comorbidity was the main cause of poor outcome(78.1%),followed by late complications(such as posterior capsule opacification)(17.2%),inadequate optical correction(3.1%),and surgical complications(1.6%).The main barrier to surgery in people with bilateral cataract and VA ofs‘need not felt’.CONCl.sION:The prevalence of visual impairment resulting from cataract is slightly higher than *** quality of the cataract surgical.service seems adequate in ***,the number of cataract operations per year should continue to increase due to the increasing patient demands and the aging population.

关键词： cataract prevalence blindness visual impairment rapid assessment of avoidable blindness

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Exact solutions for magnetohydrodynamic nanofluids flow and heat transfer over a permeable axisymmetric radially stretching/shrinking sheet

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Chinese Physics B 2024年第2期33卷 108-114页

作者： U.s.Mahabal.shwar g.P.Vanitha l.M.Pérez Emad H.Aly I.Pop Department of studies in Mathematics Davangere UniversityShivagangothriDavangereIndia Departamento de F´ısica FACIUniversidad de Tarapac´aCasilla 7DAricaChile Department of Mathematics Faculty of EducationAin Shams UniversityRoxyCairoEgypt Department of Mathematics Babes-Bolyai University400084 Cluj-NapocaRomania

We report on the magnetohydrodynamic impact on the axisymmetric flow of Al_(2)O_(3)/Cu nanoparticl.s suspended in H_(2)O past a stretched/shrinked *** the use of partial differential equations and the corresponding thermophysical characteristics of nanoparticl.s,the physical flow process is *** resultant nonlinear system of partial differential equations is converted into a system of ordinary differential equations using the suitable similarity *** transformed differential equations are solved *** of the magnetic parameter,solid volume fraction and stretching/shrinking parameter on momentum and temperature distribution have been analyzed and interpreted *** skin friction and Nusselt number were also *** addition,existence of dual.solution was deduced for the shrinking sheet and unique solution for the stretching ***,Al_(2)O_(3)/H_(2)O nanofluid flow has better thermal conductivity on comparing with Cu/H_(2)O ***,it was found that the first solutions of the stream are stable and physically realizable,whereas those of the second ones are unstable.

关键词： magnetohydrodynamic nanofluid stretching/shrinking sheet axisymmetric flow analytical.solution suction/injection

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Enabling Technologies for Autonomous Robotic systems in Manufacturing

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Transactions of Nanjing University of Aeronautics and Astronautics 2024年第4期41卷 403-431页

作者： ERDŐs gábor ABAI Kristóf BEREgI Richárd CsEMPEsZ János CsERTEg Tamás gODÓgábor HAJÓs Mátyás HÁY borbála HORVÁTH Dániel HORVÁTH gergely JUNIKIÁdám KEMÉNY Zsolt KOVÁCs András NACsA János PANITI Imre PEDONE gianfranco TAKÁCs Emma TIPARY Bence ZAHORÁN l.szló VÁNCZA József Institute for Computer science and Control Hungarian Research Network(HUN-REN SZTAKI)BudapestHungary Department of Manufacturing science and Technology Budapest University of Technology and Economics(BME)BudapestHungary EPIC Innolabs Nonprofit ltd. BudapestHungary Eötvös loránd University(ElTE) BudapestHungary

Research of autonomous manufacturing systems is motivated both by the new technical possibilities of cyber-physical.systems and by the practical needs of the *** operation in semi-structured industrial environments can now be supported by advanced sensor technologies,digital twins,artificial intelligence and novel communication *** enable real-time monitoring of production processes,situation recognition and prediction,automated and adaptive(re)planning,teamwork and performance improvement by *** paper summarizes the main requirements towards autonomous industrial robotics and suggests a generic workflow for realizing such *** case studies will be presented from recent practice at HUN-REN sZTAKI in a broad range of domains such as assembly,welding,grinding,picking and placing,and *** various solutions have in common that they use a generic digital twin concept as their *** making general recommendations for realizing autonomous robotic solutions in the industry,open issues for future research will be discussed.

关键词： industrial robotics autonomy digital twin enabling technology

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Optimal Control of service Rates of Discrete-Time(s,Q)Queueing-Inventory systems with Finite Buffer

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Journal of systems science and systems Engineering 2024年第3期33卷 261-280页

作者： l.Iniya B.sivakumar g.Arivarignan school of Mathematics Madurai Kamaraj UniversityMaduraiTamilnaduIndia Department of statistics Manonmaniam Sundaranar UniversityTirunelveliTamilnaduIndia

This article,we develop an optimal policy to control the service rate of a discrete time queueing-inventory system with finite *** customers arrive according to a Bernoulli process and the service time for the customers are *** the buffer size attains its maximum,any arriving new customers are considered to be *** customers are served one by one according to FCFs rule and each customers request random number of *** inventory is replenished according to a(s,Q)inventory policy with geometric lead *** main objectives of this article are to determine the service rates to be employed at each slot so that the long run expected cost rate is minimized for fixed inventory level and fixed buffer size and to minimize the expected waiting time for a fixed inventory level and fixed buffer *** problems are modelled as Markov decision *** establ.sh the existence of a stationary policy and employ linear programming method to find the optimal.service *** provide some numerical exampl.s to ill.strate the behaviour of the model.

关键词： Queueing-inventory system discrete time batch demand-Markov decision process

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Combustion characteristics of low-quality lignite for different bed material.sphericities in a circulating fluidized bed boiler:A numerical.study

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Particuology 2024年第7期90卷 364-382页

作者： Barış gürel gülşah Karaca Dolgun Osman İpek Ali Keçebaş Department of Mechanical Engineering Engineering FacultySüleyman Demirel UniversityÇünürIspartaTurkey Department of Energy systems Engineering Technology FacultyMuğla SıtkıKoçman UniversityKötekliMenteşeMuğlaTurkey

This study delves into the combustion behavior of various lignite types within a circulating fluidized bed boiler(CFBB),with a primary focus on the impact of different bed material.sphericity ratios(0.5,0.7,and 0.9).Utilizing bed material with a sphericity ratio of 0.9 sourced from theÇan power plant and verified through experimentation,the research reveals several key ***,furnace temperatures tended to rise with higher sphericity ratios,albeit with variations between lignite types,particularly highlighting the complexity of this relationship in the case of glI-Tunçbilek *** levels in the combustion chamber remained consistent across different sphericity ratios,indicating minimal influence on pressure *** combustion efficiency,especially at the bottom of the boiler,was observed at lower sphericity levels(0.5 and 0.7)forÇan lignite,as reflected in CO_(2) mole *** NO_(x) emissions generally decreased with lower sphericity,the sensitivity to sphericity varied by lignite type,with Ilgın lignite showcasing low NO_(x) but high sO_(2) emissions,underscoring the intricate interplay between lignite properties,sphericity,and ***,this study advances our understanding of CFBB combustion dynamics,offering insights valuable for optimizing performance and emissions control,particularly in lignite-based power.

关键词： Circulating fluidized bed boiler Computational particle fluid dynamics method Particle sphericity ratios NO_(x)and sO_(2)emissions Energy production efficiency

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sANC Monte Carlo programs for small-angle Bhabha scattering

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Chinese Physics C 2024年第4期48卷 14-19页

作者： A.B.Arbuzov s.g.Bondarenko I.R.Boyko l.V.Kalinovskaya A.A.Kampf R.R.sadykov V.l.Yermolchyk Bogoliubov laboratory of Theoretical Physics JINRDubna141980 Russia Dzhelepov laboratory of Nuclear Problems JINRDubna141980 Russia Dubna state University Dubna141982 Russia

luminosity monitoring at e^(+)e^(−)colliders was investigated using sANC Monte Carlo event generator RenesANCe and integrator MCsANC for simulation of Bhabha scattering at low *** are presented for center-of-mass energies of the Z boson resonance and at 240 geV for the conditions of typical luminosity *** is shown that bremsstrahlung events with extremely low electron scattering angl.s are relevant to match the precision tags of future electron-positron colliders.

关键词： luminosity Bhabha scattering QED Monte Carlo simulation

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semi-analytical investigation of heat transfer in a porous convective radiative moving longitudinal fin exposed to magnetic field in the presence of a shape-dependent trihybrid nanofluid

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Applied Mathematics and Mechanics(Engl.sh Edition) 2024年第1期45卷 197-216页

作者： C.g.PAVITHRA B.J.gIREEsHA M.l.KEERTHI Department of Pg studies and Research in Mathematics Kuvempu UniversityShankaraghatta 577451India Department of Mathematics and statistics M.S.Ramaiah University of Applied SciencesBengaluru 560058India

The thermal examination of a non-integer-ordered mobile fin with a magnetism in the presence of a trihybrid nanofluid(Fe_3O_4-Au-Zn-blood) is carried out. Three types of nanoparticl.s, each having a different shape, are considered. These shapes include spherical(Fe_3O_4), cylindrical(Au), and platelet(Zn) configurations. The combination approach is utilized to evaluate the physical and thermal characteristics of the trihybrid and hybrid nanofluids, excluding the thermal conductivity and dynamic viscosity. These two properties are inferred by means of the interpolation method based on the volume fraction of nanoparticl.s. The governing equation is transformed into a dimensionl.ss form, and the Adomian decomposition sumudu transform method(ADsTM) is adopted to solve the conundrum of a moving fin immersed in a trihybrid nanofluid. The obtained resul.s agree well with those numerical.simulation resul.s, indicating that this research is reliable. The influence of diverse factors on the thermal overview for varying noninteger values of γ is analyzed and presented in graphical representations. Furthermore, the fluctuations in the heat transfer concerning the pertinent parameters are studied. The resul.s show that the heat flux in the presence of the combination of spherical, cylindrical, and platelet nanoparticl.s is higher than that in the presence of the combination of only spherical and cylindrical nanoparticl.s. The temperature at the fin tip increases by 0.705 759% when the value of the Peclet number increases by 400%, while decreases by 11.825 13% when the value of the Hartman number increases by 400%.

关键词： convection radiation moving longitudinal fin Adomian decomposition sumudu transform method(ADsTM) trihybrid nanofluid magnetic field

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Experimental implementation of phase triplicator gratings in a spatial light modulator

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Chinese Optics letters 2024年第2期22卷 64-69页

作者：高尚 María del Mar sánchez-lópez Ignacio Moreno Instituto de Bioingeniería Universidad Miguel HernándezElche 03202Spain Departamento de Física Aplicada Universidad Miguel HernándezElche 03202Spain Departamento de Ciencia de Material.s Óptica y Tec.Electr´onicaUniversidad Miguel HernándezElche 03202Spain

In this work,we compare different methods for implementing a triplicator,a phase grating that generates three equiintense diffraction *** design with optimal efficiency features a continuous phase profile,which cannot be easily reproduced,and is typically affected by *** compare its performance with binary and sinusoidal phase *** also analyze the effect of quantizing the phase ***,a random approach is adopted to eliminate the additional harmonic *** all cases,a liquid-crystal-on-silicon spatial light modulator is employed to experimentally verify and compare the different approaches.

关键词： diffraction gratings phase modulation triplicator spatial light modulators

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Degradation and resynthesis of chlorophyll during increased oxidative stress and prolonged darkness differ between annual and perennial flax(linum l.)

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Oil Crop science 2024年第2期9卷 121-130页

作者： Kenyon J. Nisbett Abida Alokozai su Hyun Elizabeth Ko g. Adam Mott Jason C.l. Browna Department of Biological.sciences University of Toronto ScarboroughTorontoONCanada Department of Cell.systems Biology University of TorontoTorontoONCanada Centre for the Anal.sis of genome Evolution&Function University of TorontoTorontoONCanada

Among plants,there is considerable variation in lifespan:annuals live l.ss than one year,whereas perennials live for several years,with the longest-living perennial having survived 43,600 *** proposed by the Disposable soma Theory,this lifespan variation among plants likely reflects differential investment of limited energy and nutrient resources,with perennials investing more energy and nutrients into biomolecular maintenance compared to annuals in order to ensure persistence over multiple *** differential investment may be particularly important during periods of exogenous stress,which are known to accelerate biomolecular *** present study evaluated this hypothesis using annual and perennial flax(linum l.)subjected to two exogenous stressors—increased oxidative stress(i.e.,foliar H2O2spraying)and complete prolonged *** chlorophyll has been shown to exhibit degradation in response to changes in environmental conditions,we utilized changes in chlorophyll levels during and after periods of exogenous stress to evaluate our *** predicted that i)perennials would exhibit a slower rate of chlorophyll degradation during exposure to exogenous stressors compared to annuals,and ii)perennials would exhibit a faster rate of chlorophyll resynthesis following such exposure compared to *** levels before,during,and after exposure to both exogenous stressors were measured in two separate trails,once using image colour anal.sis and once using *** chlorophyll degradation rates in response to oxidative stress did not differ between annuals and perennials,contrary to our predictions,chlorophyll resynthesis rates following such exposure were significantly higher in perennials,as *** plants were subjected to complete prolonged darkness,chlorophyll degradation rates were significantly lower in perennials than annuals,as predicted;however,when plants were subsequently reintroduced to natural photoperiod,ch

关键词： Ageing life history Maximum lifespan Oxidative stress somatic maintenance

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Effect of radiative l.ss mechanisms on FIR thermometric parameters of Nd^(3+)-doped lithium tellurite gl.sses

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Journal of Rare Earths 2024年第7期42卷 1250-1257,I0002页

作者： C.Y.Morassuti A.P.l.silva l.A.O.Nunes s.M.lima l.H.C.Andrade Optical and Photothermal.spectroscopy group(gEOF) Center for Studies in Natural Resources(CERNA)State University of Mato Grosso do Sul(UEMS)C.P.351DouradosMSBrazil Renato Archer Information Technology Center Dom Pedro I Highway(SP-65)Km 1436-Chácaras Campos dos AmaraisCampinasSPBrazil Institute of Physics of são Carl.s University of São PauloSão CarlosSPBrazil

Nd^(3+)-doped tellurite gl.sses are promising materials for thermometers based on the fluorescence intensity ratio(FIR)***,at high Nd^(3+)concentrations,energy transfer(ET)processes such as optical reabsorption and cross-relaxation can affect the Nd^(3+)emission,which has been little explored in the ***,the present work investigated the use of Nd^(3+)-doped tellurite gl.ss(sampl.s doped with Nd^(3+)at 0.2 mol%,0.5 mol%,2.0 mol%,and 4.0 mol%)in fluorescence thermometers,in the temperature range from 299 to 371 *** resul.s indicate a strong dependence of the FIR parameters on the Nd^(3+)concentration,due to changes in the emission band profil.s caused by optical reabsorption of the Nd^(3+)emissions and cross-relaxation processes.A decrease of the relative sensitivity of the ratio^(4)F_(5/2)→^(4)I_(9/2)/^(4)F_(3/2)→^(4)I_(9/2)is observed for sampl.s doped with higher amounts of Nd^(3+).The maximum relative sensitivity at 299 K is 3.00%/K,which is the highest value among the reported Nd^(3+)ions.

关键词： Nd^(3+)-doped tellurite gl.ss Fluorescence intensity ratio Optical thermometry Judd-Ofelt Rare earths

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