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Forecasting of tropical cyclones AsANI(2022)and MOCHA(2023)over the Bay of Bengal-real time challenges.t. forecasters

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tropical Cyclone Research and Review 2024年第2期13卷 88-112页

作者： s.D.Kotal t.Arulalan M.Mohapatra India Meteorological Department Ministry of Earth ScienceGovernment of IndiaNew DelhiIndia

this study examines.t.e track and intens.t. forecasts of two typical Bay of Bengal tropical cyclones.t.)AsANI and *** analysis of various Numerical Weather Prediction(NWP)model forecasts[ECMWF(European Centre for Medium range Weather Forecast),NCEP(National Centers for Environmental Prediction),NCUM(National Centre for Medium Range Weather Forecast-Uniﬁed Model),IMD(India Meteorological Department),HWRF(Hurricane Weather Research and Forecasting)],MME(Multi-model Ensemble),sCIP(statistical Cyclone Intens.t. Prediction)model,and OFCL(Ofﬁcial)forecasts shows.t.at intens.t. forecasts of AsANI and track forecasts of MOCHA were reasonably good,but there were large errors and wide variation in track forecasts of AsANI and in intens.t. forecasts of *** all model forecasts.t.e track forecast errors of IMD model and MME were least in general for AsANI and MOCHA ***,the landfall point forecast errors of IMD were least for AsANI,and the MME and OFCL forecast errors were least for *** model is found to be consistently better for landfall time forecast for AsANI,and the errors of ECMWF,IMD and HWRF were least and of same order for *** intens.t. forecast errors of OFCL and sCIP were least for AsANI,and the forecast errors of HWRF,IMD,NCEP,sCIP and OFCL were comparable and least for MOCHA up to 48 h forecast and HWRF errors were least thereafter in *** ECMWF model forecast errors for intens.t. were found to be highest for both the *** results also show that although there is signiﬁcant improvement of track forecasts and limited or no improvement of intens.t. forecast in previous decades but challenges still persists in real time forecasting of both track and intens.t. due to wide variation and inconsistency of model forecasts for different tC cases.

关键词： tropical cyclone track forecast Intens.t. forecast NWP model Bay of Bengal North Indian Ocean

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Exploring geometry of genome space via Grassmann manifolds

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the Innovation 2024年第5期5卷 92-99,91页

作者： Xiaoguang Li tao Zhou Xingdong Feng shing-tung Yau stephen s.-t.Yau school of statistics and Management Shanghai University of Finance and EconomicsShanghai 200433China Department of Mathematical sciences Tsinghua UniversityBeijing 100084China Yanqi Lake Beijing Institute of Mathematical sciences and Applications Beijing 101408China

It is important to understand the geometry of genome space in *** transforming genome sequences into frequency matrices of the chaos game representation(FCGR),we regard a genome sequence as a point in a suitable Grassmann manifold by analyzing the column space of the corresponding *** assess.t.e sequence similarity,we employ the generalized Grassmannian distance,an intrinsic geometric distance that differs from the traditional Euclidean distance used in the classical k-mer frequency-based *** this method,we constructed phylogenetic trees for various genome datas.t.,including influenza A virus hemagglutinin gene,Orthocoronavirinae genome,and sARs-CoV-2 complete genome *** comparative analysis with multiple sequence alignment and alignment-free methods for large-scale sequences revealed that our method,which employs.t.e subspace distance between the column spaces of different FCGRs(FCGR-sD),outperformed its competitors in terms of both speed and *** addition,we used low-dimensional visualization of the sARs-CoV-2 genome sequences and spike protein nucleotide sequences with our methods,resulting in some intriguing *** not only propose a novel and efficient algorithm for comparing genome sequences but also demonstrate that genome data have some intrinsic manifold structures,providing a new geometric perspective for molecular biology studies.

关键词： methods. manifold geometry

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Enhanced photoluminescence of a microporous quantum dot color conversion layer by inkjet printing

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Nano Research 2024年第8期17卷 7717-7725页

作者： Junchi Chen Qihao Jin Yidenekachew.J.Donie Orlando.t.Perales Dmitry Busko Bryce.s.Richards Uli Lemmer Light technology Institute(LtI) Karlsruhe Institute of Technology(KIT)Engesserstrasse 1376131 KarlsruheGermany Department of Chemical Engineering and Materials science University of Minnesota(UMN)421 Washington Ave.SEMinneapolisMN 55455-0132USA Institute for Microstructure technology Karlsruhe Institute of Technology(KIT)Hermann-von-Helmholtz-Platz 176344 Eggenstein-LeopoldshafenGermany

Owing to their high color purity,tunable bandgap,and high efficiency,quantum dots(QDs)have gained significant attention as color conversion materials for high-end display ***,inkjet-printed QD pixels show great potential for realizing full-color mini/micro-light emitting diode(micro-LED)-based *** a color conversion layer,the photoluminescence intens.t. of QDs is limited by the insufficient absorptance of the excitation light due to the lack of *** scatterers,such as.t.tanium dioxide microparticles,have been applied after additional surface engineering for sufficient dispers.t. to prevent nozzle clogging in inkjet printing *** our work,as an alternative approach,we use inkjet printing for depos.t.ng a phase separating polymer ink based on polystyrene(Ps)and polyethylene glycol(PEG).QD/polymer compos.t. pixels with scattering micropores are *** morphology of the micropores can be tailored by the weight ratio between Ps and PEG which enables.t.e manipulation of scattering *** the presence of the microporous structure,the photoluminescence intens.t. of the QD film is enhanced by 110%in drop-cast films and by 35.3%in inkjet-printed QD pixel arrays compared to the reference samples.

关键词： porous structure inkjet printing phase separation quantum dots display technology

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Construction of 2D/2D ti_(3)C_(2)t_(x)MXene/Cds heterojunction with photothermal effect for efficient photocatalytic hydrogen production

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Journal of Materials science & technology 2024年第4期171卷 1-9页

作者： t.Y.Huang Z.Yang s.Y.Yang Z.H.Dai Y.J.Liu J.H.Liao G.Y.Zhong Z.J.Xie Y.P.Fang s.s.Zhang Key Laboratory for Biobased Materials and Energy of Ministry of Education Guangdong Laboratory for Lingnan Modern AgricultureCollege of Materials and EnergySouth China Agricultural UniversityGuangzhou 510643China school of Physics and Optoelectronics South China University of TechnologyGuangzhou 510640China school of Chemical Engineering and Energy technology Guangdong Provincial Key Laboratory of Distributed Energy SystemsDongguan University of TechnologyDongguan 523808China

the insens.t.vity of semiconductors.t. visible and infrared light is a key constraint on the utilization of light energy in photocatalytic *** photocatalysts with full-spectrum absorption through surface engineering is an effective approach to fully harnessing light energy in semiconductor ***,a novel stable ti_(3)C_(2)t_(x)MXene/Cds heterojunction catalyst is obtained by in-s.t. epitaxial growth of two-dimensional(2D)Cds nanosheets on 2D MXene interface via a solvothermal *** exceptional light absorption properties of MXene confer outstanding full-spectrum driven photocat-alytic hydrogen evolution capability upon the heterogeneous *** unique 2D/2D structure effectively mitigated the recombination of photogenerated carriers,enhancing the photocatalytic performance of the ***,the compos.t. catalyst exhibits a significantly higher surface temperature of 80.4℃under visible light irradiation at an intens.t. of 0.1 W/cm^(2),which is 1.84 times higher than that of *** irradiation of visible and near infrared light,the compos.t. catalyst with photothermal ef-fect demonstrates a remarkable hydrogen evolution rate of 65.4 mmol g^(-1)h^(-1),which is 7.2 times higher than that of Cds *** study introduces a novel approach for constructing full-spectrum absorption catalysts and expands.t.e application of the photothermal effect in photocatalytic hydrogen evolution research.

关键词： two-dimensional structure Heterostructure Photothermal effect Photocatalyst Hydrogen evolution

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Radiative heat transfer analysis of a concave porous fin under the local thermal non-equilibrium condition:application of the clique polynomial method and physics-informed neural networks

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Applied Mathematics and Mechanics(English Edition) 2024年第9期45卷 1613-1632页

作者： K.CHANDAN K.KARtHIK K.V.NAGARAJA B.C.PRAsANNAKUMARA R.s.VARUN KUMAR t.MUHAMMAD Amrita school of Artificial Intelligence Amrita Vishwa VidyapeethamBengaluru 560035KarnatakaIndia Department of studies in Mathematics Davangere UniversityDavangere 577002KarnatakaIndia Computational science Lab Amrita School of EngineeringAmrita Vishwa VidyapeethamBengaluru 560035KarnatakaIndia Department of Pure and Applied Mathematics School of Mathematical SciencesSunway UniversityPetaling Jaya 47500Malaysia Department of Mathematics College of ScienceKing Khalid UniversityAbha 61413Saudi Arabia

the heat transfer through a concave permeable fin is analyzed by the local thermal non-equilibrium(LtNE)*** governing dimensional temperature equations for the solid and fluid phases of the porous extended surface are modeled,and then are nondimensionalized by suitable dimensionless ***,the obtained nondimensional equations are solved by the clique polynomial method(CPM).the effects of several dimensionless parameters on the fin's.t.ermal profiles are shown by graphical ***,the current study implements deep neural structures.t. solve physics-governed coupled equations,and the best-suited hyperparameters are attained by comparison with various network *** results of the CPM and physicsinformed neural network(PINN)exhibit good agreement,signifying that both methods effectively solve the thermal modeling problem.

关键词： heat transfer fin porous fin local thermal non-equilibrium(LtNE)model physics-informed neural network(PINN)

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A modular microfluidic platform to study how fluid shear stress alters estrogen receptor phenotype in ER+breast cancer cells

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Microsystems & Nanoengineering 2024年第1期10卷 287-299页

作者： Braulio Andrés Ortega Quesada Jonathan Cuccia Rachael Coates Blake Nassar Ethan Littlefield Elizabeth C.Martin Adam t.Melvin Cain Department of Chemical Engineering Louisiana State UniversityBaton RougeLA 70803USA Department of Chemical and Biological Engineering Clemson UniversityClemsonSC 29634USA Biological and Agricultural Engineering Louisiana State UniversityBaton RougeLA 70803USA Department Medicine Section Hematology and Medical OncologyTulane UniversityNew OrleansLA 70118USA

Metastatic breast cancer leads.t. poor prognoses and worse outcomes in patients due to its invasive behavior and poor response to *** is still unclear what biophysical and biochemical factors drive this more aggressive phenotype in metastatic cancer;however recent studies have suggested that exposure to fluid shear stress in the vasculature could cause *** this study a modular microfluidic platform capable of mimicking the magnitude of fluid shear stress(Fss)found in human vasculature was designed and *** device provides a platform to evaluate the effects of Fss on MCF-7 cell line,an estrogen receptor pos.t.ve(ER+)breast cancer cell line,during circulation in the *** of the effects of Fss on MCF-7 cells was carried out utilizing two approaches:single cell analysis and bulk *** single cell analysis,cells were trapped in a microarray after exiting the serpentine channel and followed by immunostaining on the device(on-chip).Bulk analysis was performed after cells were collected in a microtube at the outlet of the microfluidic serpentine channel for western blotting(off-chip).It was found that cells exposed to an Fss magnitude of 10 dyn/cm^(2) with a residence time of 60 s enhanced expression of the proliferation marker Ki67 in the MCF-7 cell line at a single cell *** understand possible mechanisms for enhanced Ki67 expression,on-chip and off-chip analyses were performed for pro-growth and survival pathways ERK,AKt,and JAK/*** demonstrated that after shearing the cells phosphorylation of p-AKt,p-mtOR,and p-stAt3 were ***,there was no change in p-ERK1/*** is a mediator of ER rapid signaling,analysis of phosphorylated ERαwas carried out and no significant differences between sheared and non-sheared populations were *** together these results demonstrate that Fss can increase phosphorylation of proteins associated with a more aggressive phenotype in circulating cancer *** findin

关键词： fluid breast estrogen

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Metrology for sub-Rayleigh-length target pos.t.oning in~10^(22)W/cm^(2)laser-plasma experiments

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High Power Laser science and Engineering 2024年第3期12卷 90-105页

作者： E.A.Vishnyakov A.sagisaka K.Ogura t.Zh.Esirkepov B.Gonzalez-Izquierdo C.D.Armstrong t.A.Pikuz s.A.Pikuz W.Yan t.M.Jeong s.singh P.Hadjisolomou O.Finke G.M.Grittani M.Nevrkla C.M.Lazzarini A.Velyhan t.Hayakawa Y.Fukuda J.K.Koga M.Ishino K.Kondo Y.Miyasaka A.Kon M.Nishikino Y.V.Nosach D.Khikhlukha I.P.tsygvintsev D.Kumar J.Nejdl D.Margarone P.V.sasorov s.Weber M.Kando H.Kiriyama Y.Kato G.Korn K.Kondo s.V.Bulanov t.Kawachi A.s.Pirozhkov ELI Beamlines Facility The Extreme Light Infrastructure ERICDolníBrežanyCzech Republic Kansai Institute for Photon science(KPsI) QSTKyotoJapan Central Laser Facility Rutherford Appleton LaboratorySTFCHarwell OxfordDidcotUK Institute for Open and transdisciplinary Research Initiatives Osaka UniversityOsakaJapan HB11 Energy Holdings FreshwaterAustralia Key Laboratory for Laser Plasmas(Ministry of Education) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghaiChina Collaborative Innovation Center of IFsA Shanghai Jiao Tong UniversityShanghaiChina Institute of Plasma Physics AsCR PragueCzech Republic FZU-Institute of Physics AsCR PragueCzech Republic Czech technical Univers.t. in Prague FNSPEPragueCzech Republic Institute of Laser Engineering Osaka UniversityOsakaJapan Institute of Physics National Academy of Sciences of UkraineKyivUkraine IstEQ AR YerevanArmenia

tight focusing with very small f-numbers is necessary to achieve the highest at-focus ***,tight focusing imposes strong demands on precise target pos.t.oning in-focus.t. achieve the highest on-target irradiance We describe several near-infrared,visible,ultraviolet and soft and hard X-ray diagnostics employed in a~10^(22)W/cm^(2)laser±plasma *** used nearly 10 J total energy femtosecond laser pulses focused into an approximately1.3-μm focal spot on 5±20μm thick stainless-steel *** discuss.t.e applicability of these diagnostics.t. determine the best in-focus.t.rget pos.t.on with approximately 5μm accuracy(i.e.,around half of the short Rayleigh length)and show that several diagnostics(in particular,3ωreflection and on-axis hard X-rays)can ensure this *** demonstrated target pos.t.oning within several micrometers from the focus,ensuring over 80%of the ideal peak laser intens.t. *** approach is relatively fast(it requires 10±20 laser shots)and does not rely on the coincidence of low-power and high-power focal planes.

关键词： laser-plasma interaction precise target pos.t.oning spectroscopy ultra-high intens.t. X-rays

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Ion heat transport in electron cyclotron resonance heated L-mode 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 Univers.t. 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-ordinary mode. Predictive modeling with empirical scaling for Ohmical heat conductivity shows.t.at in ECRH plasmas.t.e calculated ion temperature could be overestimated, so an increase of anomalous ion heat transport is required. to study this effect two scans are presented: over the EC resonance pos.t.on and over the ECRH power. the EC resonance pos.t.on varies from the high-field side to the low-field side by variation of the toroidal magnetic field. the scan over the heating power is presented with on-axis and mixed ECRH regimes. Discharges with high anomalous ion heat transport are obtained in all considered regimes. In these discharges.t.e power balance ion heat conductivity exceeds.t.e neoclassical level by up to 10 times. the high ion heat transport regimes are distinguished by three parameters: the ratio te/ti, the normalized electron dens.t. gradient 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-mode electron cyclotron resonance heating ion heat transport

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Impact of Paenibacillus elgii supernatant on screening bacterial strains with potential for biotechnological applications

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Engineering Microbiology 2024年第3期4卷 1-15页

作者： I.C.Cunha-Ferreira C.s.Vizzotto t.D.Frederico J.Peixoto L.s Carvalho M.R.tótola R.H.Krüger Laboratory of Enzymology Department of Cellular BiologyUniversity of Brasília(UNB)Brasília70910-900Brazil Laboratory of Environmental sanitation Department of Civil and Environmental EngineeringUniversity of Brasília(UNB)Brasília70910-900Brazil Laboratório de Biotecnologia e Biodiversidade para o Meio Ambiente Universidade Federal de Viçosa(UFV)Viçosa36570-900Brazil

the biotechnological industry faces a crucial demand for novel bioactive compounds,particularly antimicrobial agents.t. address.t.e rising challenge of bacterial resistance to current available *** strate-gies for cultivating naturally occurring microorganisms often limit the discovery of novel antimicrobial *** study presents a protocol for targeted selection of bacterial strains using the supernatant of Paenibacillus el-gii,which produces abundant signal molecules and antimicrobial *** samples were inoculated in these enriched culture media to selectively cultivate bacteria resistant to the supernatant,indicating their potential to produce similar *** bacterial strains isolated through this method were assessed for their antibac-terial *** addition,the functional annotation of the genome of one of these strains revealed several gene clusters of biotechnological *** study highlights.t.e effectiveness of using this approach for selective cultivation of microorganisms with potential for biotechnological applications.

关键词： Prospecting supernatant Antibacterial activity

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A deep neural network based surrogate model for damage identification in full-scale structures with incomplete noisy measurements

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Frontiers of structural and Civil Engineering 2024年第3期18卷 393-410页

作者： tram BUI-NGOC Duy-Khuong LY tam t tRUONG Chanachai tHONGCHOM t.NGUYEN-tHOI Laboratory for Computational Mechanics Institute for Computational Science and Artificial IntelligenceVan Lang UniversityHo Chi Minh City 70000Vietnam Faculty of Mechanical-Electrical and Computer Engineering School of TechnologyVan Lang UniversityHo Chi Minh City 70000Vietnam Faculty of Civil Engineering School of TechnologyVan Lang UniversityHo Chi Minh City 70000Vietnam Department of Computer science Aarhus UniversityAarhus 8000Denmark thammas.t.Univers.t. research unit in structural and foundation engineering Department of Civil EngineeringThammasat UniversityPathumthani 12120Thailand Laboratory for Applied and Industrial Mathematics Institute for Computational Science and Artificial IntelligenceVan Lang UniversityHo Chi Minh City 70000Vietnam thammas.t.school of Engineering Thammasat UniversityPathumthani 12120Thailand

the paper introduces a novel approach for detecting structural damage in full-scale structures using surrogate models generated from incomplete modal data and deep neural networks(DNNs).A significant challenge in this field is.t.e limited availability of measurement data for full-scale structures,which is addressed in this paper by generating data s.t. using a reduced finite element(FE)model constructed by sAP2000 software and the MAtLAB programming *** surrogate models are trained using response data obtained from the monitored structure through a limited number of measurement *** proposed approach involves.t.aining a single surrogate model that can quickly predict the location and severity of damage for all potential *** achieve the most generalized surrogate model,the study explores different types of layers and hyperparameters of the training algorithm and employs state-of-the-art techniques.t. avoid overfitting and to accelerate the training *** approach’s effectiveness,efficiency,and applicability are demonstrated by two numerical *** study also verifies.t.e robustness of the proposed approach on data s.t. with sparse and noisy measured ***,the proposed approach is a promising alternative to traditional approaches.t.at rely on FE model updating and optimization algorithms,which can be computationally *** approach also shows potential for broader applications in structural damage detection.

关键词： vibration-based damage detection deep neural network full-scale structures finite element model updating noisy incomplete modal data

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