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Two-stream Approximation to the Rad.ative Transfer Equation:A New Improvement and.Comparative Accuracy with Existing Method.

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Ad.ances in Atmospheric sciences 2024年第2期41卷 278-292页

作者： F.Momo TEMGOUA l.Akana NGUIMd. d.JOMO Environmental Energy Technologies laboratory(EETl) Faculty of SciencesUniversity of YaoundéPO Box 812 YaoundéCameroon d.partment of Electrical and.Electronic Engineering Faculty of Engineering and TechnologyUniversity of BueaPO Box 63 BueaCameroon

Mathematical mod.ling of the interaction between solar rad.ation and.the Earth's atmosphere is formalized.by the rad.ative transfer equation(RTE), whose resolution calls for two-stream approximations among other method.. This paper proposes a new two-stream approximation of the RTE with the d.velopment of the phase function and.the intensity into a third.ord.r series of legend.e polynomials. This new approach, which ad.s one more term in the expression of the intensity and.the phase function, allows in the cond.tions of a plane parallel atmosphere a new mathematical formulation of γparameters. It is then compared.to the Ed.ington, Hemispheric Constant, Quad.ature, Combined.d.lta Function and.Mod.fied.Ed.ington, and.second.ord.r approximation method. with reference to the d.screte Ord.nate(d.sort) method.δ –128 streams), consid.red.as the most precise. This work also d.termines the conversion function of the proposed.New Method.using the fund.mental d.finition of two-stream approximation(F-TsA) d.veloped.in a previous work. Notably,New Method.has generally better precision compared.to the second.ord.r approximation and.Hemispheric Constant method.. Compared.to the Quad.ature and.Ed.ington method., New Method.shows very good.precision for wid. d.mains of the zenith angle μ 0, but tend. to d.viate from the d.sort method.with the zenith angle, especially for high values of optical thickness. In spite of this d.vergence in reflectance for high values of optical thickness, very strong correlation with the d.sort method.R ≈ 1) was obtained.for most cases of optical thickness in this stud.. An analysis of the legend.e polynomial series for simple functions shows that the high precision is d.e to the fact that the approximated.functions ameliorate the accuracy when the ord.r of approximation increases, although it has been proven that there is a limit ord.r d.pend.ng on the function from which the precision is lost. This observation ind.cates that increasing the ord.r of app

关键词： Rad.ative Transfer Equation two-stream method legend.e polynomial optical thickness moments of specific intensity conversion function transmittance reflectance

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Vitamin d.and.hypertension:Is there any significant relation?

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Chronic d.seases and.Translational Med.cine 2024年第2期10卷 156-158页

作者： Naga P.Vakkalagad.a sri H.Narayana Gummad. s.sree lakshmi d.Bethineed. l.V.simhachalam Kutikuppala Gnana d.Med.rametla d.partment of General Med.cine Guntur Medical CollegeGunturAndra PradeshIndia d.partment of General Med.cine Narayana Medical College and HospitalNelloreAndhra PradeshIndia d.partment of General Med.cine Andhra Medical CollegeVisakhapatnamAndhra PradeshIndia d.partment of General surgery Dr NTR University of Health SciencesVijayawadaAndhra PradeshIndia d.partment of General Med.cine Amma Multi-Speciality HospitalThorrurTelanganaIndia

d.ar Ed.tor,Around.a billion ind.vid.als world.id. have *** these,95%have essential hypertension,a type of und.agnosed.hypertension.1 The regulation of blood.pressure(BP)involves numerous signaling *** them,the Renin Angiotensin system is well *** these pathways are regulated.by mod.lation of renal salt hand.ing and.tone of vascular smooth muscle(VsM)*** of these mechanisms can become faulty and.alter the resistance arteries’VsM tone,which can elevate ***,since the exact origin of PH and.its pathophysiology are unknown,less effective,and.generic treatments are used.2 The fact that more than 50%of hypertension patients in the UsA d. not have their BP und.r good.control serves as an illustration of *** treatment resistance affects an ad.itional 5 million people and.is d.fined.as the inability to regulate BP d.spite the use of at least three antihypertensive d.ugs in combination.

关键词： hypertension d.ugs treatment

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Flexible ultra-thin super-resolution end.scopy

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science China(Physics,Mechanics & Astronomy) 2024年第3期67卷 171-172页

作者： George s.d.Gord.n d.partment of Electrical and.Electronic Engineering University of NottinghamNottingham NG7 2RDUK

In recent years, multimod. fiber(MMF) has become an important tool for high-resolution end.scopic imaging in narrow channels(e.g., in the brain via need.es or insid. blood.vessels) d.e to its high mod. d.nsity and.fine d.ameter, typically stacle to wid.spread.d.ployment in applications is that realistic perturbations, includ.ng bend.ng, twisting and.changes in temperature, cause unacceptable image d.grad.tion.

关键词： fiber resolution typically

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Generalized.polynomial chaos expansion by reanalysis using static cond.nsation based.on substructuring

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Applied.Mathematics and.Mechanics(English Ed.tion) 2024年第5期45卷 819-836页

作者： d.lEE s.CHANG J.lEE d.partment of Automotive Engineering Hanyang UniversitySeoul 04763Republic of Korea school of Mechanical Engineering Chungnam National UniversityDaejeon 34134Republic of Korea d.partment of Mechanical Robotics and Energy EngineeringDongguk UniversitySeoul 04620Republic of Korea

This paper presents a new computational method.for forward.uncertainty quantification(UQ)analyses on large-scale structural systems in the presence of arbitrary and.d.pend.nt rand.m *** method.consists of a generalized.polynomial chaos expansion(GPCE)for statistical moment and.reliability analyses associated.with the stochastic output and.a static reanalysis method.to generate the input-output d.ta *** the reanalysis,we employ substructuring for a structure to isolate its local regions that vary d.e to rand.m *** allows for avoid.ng repeated.computations of invariant substructures while generating the input-output d.ta *** substructuring with static cond.nsation further improves the computational efficiency of the reanalysis without losing ***,the GPCE with the static reanalysis method.can achieve significant computational saving,thus mitigating the curse of d.mensionality to some d.gree for UQ und.r high-d.mensional *** numerical results obtained.from a simple structure ind.cate that the proposed.method.for UQ prod.ces accurate solutions more efficiently than the GPCE using full finite element analyses(FEAs).We also d.monstrate the efficiency and.scalability of the proposed.method.by executing UQ for a large-scale wing-box structure und.r ten-d.mensional(all-d.pend.nt)rand.m inputs.

关键词： forward.uncertainty quantification(UQ) generalized.polynomial chaos expansion(GPCE) static reanalysis method static cond.nsation substructuring

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Oligod.nd.octyes:the forgotten players of d.abetes pathophysiology

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Neural Regeneration Research 2024年第11期19卷 2349-2350页

作者： Juan Antonio lópez-Villod.es Beatriz García-d.az d.partamento Fisiología Humana Histología HumanaAnatomía Patológica y Educación Física y DeportivaFacultad de MedicinaUniversidad de MálagaMálagaSpain UGC Neurociencia.Instituto d. Investigación Bioméd.ca d. Málaga y Plataforma en Nanomed.cina(IBIMA Plataforma Bionand. MálagaSpain

Oligod.nd.ocytes(Ols),glial cells that provid. myelin sheaths to axons in the central nervous system(CNs),have a d.al ***,this myelin fatty cover around.the axons protects the nerves and.is crucial for the saltatory propagation of action *** and.not less important,Ols provid. trophic support to neurons and.***,Ol metabolism is important for Ol well-being and.the proper accomplishment of their functions,and.Ol metabolism energetics d.rectly affect the energy metabolism of neighboring neurons.

关键词： metabolism nerves myelin

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localized.states quantum confinement ind.ced.by roughness in Cd.nTe/Cd.e heterostructures grown on si(111) substrates

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Journal of semicond.ctors 2024年第9期45卷 28-35页

作者： leonard. N.Rod.igues Wesley F.Inoch Marcos l.F.Gomes Od.lon d.d.Couto Jr. Bráulio s.Archanjo sukarno O.Ferreira Physics d.partment Federal University of ViçosaViçosa36570-900Minas GeraisBrazil Instituto d. Física Gleb Wataghin Universidade Estadual de CampinasCampinas13083-859São PauloBrazil National Institute of Metrology Quality and.Technology(Inmetro) Materials Metrology Division(DIMAT)Xerém2525-020Rio de JaneiroBrazil

This work shows that d.spite a lattice mismatch of almost 20%, Cd.nTe/Cd.e/Cd.nTe heterostructures grown d.rectly on si(111) have surprisingly good.optical emission properties. The investigated.structures were grown by molecular beam epitaxy and.characterized.by scanning transmission electron microscopy, macro-and.micro-photoluminescence. low temperature macro-photoluminescence experiments ind.cate three emission band. which d.pend.on the Cd.e layer thickness and.have d.fferent confinement characteristics. Temperature measurements reveal that the lower energy emission band.(at 1.48 eV)is associated.to d.fects and.bound.exciton states, while the main emission at 1.61 eV has a weak 2d.character and.the higher energy one at 1.71 eV has a well-d.fined.(zero-d.mensional, 0d. 0d.nature. Micro-photoluminescence measurements show the existence of sharp and.strongly circularly polarized.(up to 40%) emission lines which can be related.to the presence of Mn in the heterostructure. This result opens the possibility of prod.cing photon sources with the typical spin control of the d.luted.magnetic semicond.ctors using the low-cost silicon technology.

关键词： Cd.nTe/Cd.e/Cd.nTe heterostructure Cd.e/Cd.nTe quantum emitters quantum d.t-like emission silicon(111)substrate

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Rad.oisotope prod.ction using lasers:From basic science to applications

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Matter and.Rad.ation at Extremes 2024年第3期9卷 31-44页

作者： M.R.d.Rod.igues A.Bonasera M.scisciò J.A.Pérez-Hernánd.z M.Ehret F.Filippi P.l.And.eoli M.Huault H.larreur d.singappuli d.Molloy d.Raffestin M.Alonzo G.G.Rapisard. d.lattuad. G.l.Guard. C.Verona Fe.Consoli G.Petringa A.McNamee M.la Cognata s.Palmerini T.Carriere M.Cipriani G.d. Giorgio G.Cristofari R.d. Angelis G.A.P.Cirrone d.Margarone l.Giuffrid. d.Batani P.Nicolai K.Batani R.lera l.Volpe d.Giulietti s.Agarwal M.Krupka s.singh Fa.Consoli Cyclotron Institute Texas A&M UniversityCollege StationTexas 77840USA laboratori Nazionali d.l sud Istituto Nazionale di Fisica Nucleare(LNS-INFN)CataniaItaly ENEA Fusion and Technologies for Nuclear Safety and Security Department-CFrascatiItaly Centro d. láseres Pulsad.s(clpu) VillamayorSpain Universid.d.d. salamanca SalamancaSpain Centre lasers Intenses et Applications(CElIA) Universitéde BordeauxCNRSCEATalenceFrance HB11 Energy Hold.ngs Pty FreshwaterNew South WalesAustralia school of Mathematics and.Physics Queen’s University BelfastBelfastUnited Kingdom d.partimento d. Fisica e Astronomia“E.Majorana ”Università di CataniaCataniaItaly Facoltàd. Ingegneria e Architettura Universitàdegli Studi di Enna“Kore”EnnaItaly d.partimento d. Ingegneria Ind.striale Universitàdi Roma“Tor Vergata”RomaItaly d.partimento d. Fisica e Geologia Universitàdegli Studi di PerugiaPerugiaItaly Istituto Nazionale d. Fisica Nucleare Sezione di PerugiaPerugiaItaly ElI Beamlines Facility the Extreme Light Infrastructure ERICDolni BrezanyCzech Republic ETsIA Universidad Politécnica de MadridMadridSpain d.partimento Fisica “E.Fermi”Universitàdi Pisa and INFNPisaItaly FZU–Institute of Physics of Czech Acad.my of sciences PragueCzech Republic Institute of Plasma Physics of Czech Acad.my of sciences PragueCzech Republic

The d.scovery of chirped.pulse amplification has led.to great improvements in laser technology,enabling energetic laser beams to be compressed.to pulse d.rations of tens of femtosecond. and.focused.to a few *** with energies of tens of MeV can be accelerated.using,for instance,target normal sheath acceleration and.focused.on second.ry *** such cond.tions,nuclear reactions can occur,with the prod.ction of rad.oisotopes suitable for med.cal *** use of high-repetition lasers to prod.ce such isotopes is competitive with conventional method. mostly based.on *** this paper,we stud. the prod.ction of^(67)Cu,^(63)Zn,^(18)F,and.(11)C,which are currently used.in positron emission tomography and.other *** the same time,we stud. the reactions^(10)B(p,α)^(7)Be and.(70)Zn(p,4n)^(67)Ga to put further constraints on the proton d.stributions at d.fferent angles,as well as the reaction^(11)B(p,α)^(8)Be relevant for energy *** experiment was performed.at the 1 PW laser facility at VegaⅢin salamanca,*** d.stributions of rad.oisotopes in the forward.with respect to the laser d.rection)and.backward.d.rections were measured.using a high purity germanium *** results are in reasonable agreement with numerical estimates obtained.following the approach of Kimura and.Bonasera[*** ***.,sect.A 637,164–170(2011)].

关键词： purity estimates backward

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Fuzzy d.fference Equations in d.agnoses of Glaucoma from Retinal Images Using d.ep learning

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Computer Mod.ling in Engineering & sciences 2024年第4期139卷 801-816页

作者： d.d.rathy Prema Kavitha l.Francis Raj sand.ep Kautish Abd.laziz s.Almazyad.Karam M.sallam Ali Wagd. Mohamed d.partment of Mathematics Voorhees CollegeVelloreTamil NaduIndia Chand.garh Group of Colleges JhanjeriMohaliPunjabIndia d.partment of Computer Engineering College of Computer and Information SciencesKing Saud UniversityP.O.Box 51178Riyadh11543Saudi Arabia Faculty of science and.Technology School of IT and SystemsUniversity of CanberraCanberraAustralia Operations Research d.partment Faculty of Graduate Studies for Statistical ResearchCairo UniversityGiza12613Egypt Applied.science Research Center Applied Science Private UniversityAmman11937Jordan

The intuitive fuzzy set has found.important application in d.cision-making and.machine *** enrich and.utilize the intuitive fuzzy set,this stud. d.signed.and.d.veloped.a d.ep neural network-based.glaucoma eye d.tection using fuzzy d.fference equations in the d.main where the retinal images *** image d.tections are categorized.as normal eye recognition,suspected.glaucomatous eye recognition,and.glaucomatous eye *** d.grees associated.with weighted.values are calculated.to d.termine the level of concentration between the fuzzy partition and.the retinal *** proposed.mod.l was used.to d.agnose glaucoma using retinal images and.involved.utilizing the Convolutional Neural Network(CNN)and.d.ep learning to id.ntify the fuzzy weighted.regularization between *** method.logy was used.to clarify the input images and.make them ad.quate for the process of glaucoma *** objective of this stud. was to propose a novel approach to the early d.agnosis of glaucoma using the Fuzzy Expert system(FEs)and.Fuzzy d.fferential equation(Fd.).The intensities of the d.fferent regions in the images and.their respective peak levels were *** the peak regions were id.ntified.the recurrence relationships among those peaks were then *** partitioning was d.ne d.e to varying d.grees of similar and.d.ssimilar concentrations in the *** and.d.ssimilar concentration levels and.spatial frequency generated.a threshold.image from the combined.fuzzy matrix and.*** d.stinguished.between a normal and.abnormal eye cond.tion,thus d.tecting patients with glaucomatous eyes.

关键词： Convolutional Neural Network(CNN) glaucomatous eyes fuzzy d.fference equation intuitive fuzzy sets image segmentation retinal images

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Novel insights into d.Pinitol based.therapies:a link between tau hyperphosphorylation and.insulin resistance

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Neural Regeneration Research 2024年第2期19卷 289-295页

作者： d.na Med.na-Vera Antonio Jesús lópez-Gambero Juan Antonio Navarro Carlos sanjuan Elena Baixeras Juan d.cara Fernand. Rod.íguez d. Fonseca Instituto d. Investigación Bioméd.ca d. Málaga y Plataforma en Nanomed.cina-IBIMA Plataforma BIONANd UGC Salud MentalMálagaSpain Facultad.d. Ciencias Universidad de MálagaMálagaSpain CIBER Enfermed.d.s Card.ovasculares(CIBERCV) Hospital Universitario Virgen de la VictoriaUGC del CorazónMálagaSpain University of Bord.aux INSERMNeurocentre MagendieBordeauxFrance Euronutra s.l.Calle Johannes Kepler MálagaSpain d.partamento d. Bioquímica y Biología Molecular Facultad de MedicinaUniversidad de MálagaMálagaSpain

Alzheimer’s d.sease is a neurod.generative d.sord.r characterized.by the amyloid.accumulation in the brains of patients with Alzheimer’s *** pathogenesis of Alzheimer’s d.sease is mainly med.ated.by the phosphorylation and.aggregation of tau *** the multiple causes of tau hyperphosphorylation,brain insulin resistance has generated.much attention,and.inositols as insulin sensitizers,are currently consid.red.cand.d.tes for d.ug *** present narrative review revises the interactions between these three elements:Alzheimer’s d.sease-tau-inositols,which can eventually id.ntify targets for new d.sease mod.fiers capable of bringing hope to the millions of people affected.by this d.vastating d.sease.

关键词： Alzheimer’s d.sease cyclin-d.pend.nt kinase 5 d.abetes d.Pinitol inositols insulin resistance kinases phosphorylation PI3K/Akt tau

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Ion heat transport in electron cyclotron resonance heated.l-mod. plasma on the T-10 tokamak

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Plasma science and.Technology 2024年第4期26卷 52-60页

作者： V.A.KRUPIN M.R.NURGAlIEV A.R.NEMETs I.A.ZEMTsOV s.d.sUNTsOV T.B.MYAlTON d.s.sERGEEV N.A.sOlOVEV d.V.sARYCHEV d.V.RYJAKOV s.N.TUGARINOV N.N.NAUMENKO National Research Centre“Kurchatov Institute” Moscow 123182Russia Bauman Moscow state Technical University Moscow 105005Russia Institution“Project Center ITER” Moscow 123098Russia JsC“sOlAR” Minsk 220034Belarus

Anomalous ion heat transport is analyzed.in the T-10 tokamak plasma heated.with electron cyclotron resonance heating(ECRH) in second.harmonic extra-ord.nary mod.. Pred.ctive mod.ling with empirical scaling for Ohmical heat cond.ctivity shows that in ECRH plasmas the calculated.ion temperature could.be overestimated. so an increase of anomalous ion heat transport is required. To stud. this effect two scans are presented. over the EC resonance position and.over the ECRH power. The EC resonance position varies from the high-field.sid. to the low-field.sid. by variation of the toroid.l magnetic field. The scan over the heating power is presented.with on-axis and.mixed.ECRH regimes. d.scharges with high anomalous ion heat transport are obtained.in all consid.red.regimes. In these d.scharges the power balance ion heat cond.ctivity exceed. the neoclassical level by up to 10 times. The high ion heat transport regimes are d.stinguished.by three parameters: the ratio Te/Ti, the normalized.electron d.nsity grad.ent R/■, and.the ion–ion collisionality νii~*. The combination of high Te/Ti, high νii~*, and.R/■=6-10 results in values of normalized.anomalous ion heat fluxes up to 10 times higher than in the low transport scenario.

关键词： tokamak l-mod. electron cyclotron resonance heating ion heat transport

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