检索结果-南通市图书馆

Theoretical analys.s.of s.ip flow on a rotating cone with vis.ous.dis.ipation effects

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Hydrodynamics 2015年第4期27卷 616-623页

作者： s.LEEM s. NADEEM s. Department of Mathematics COMSATS Institute of Information Technology Department of Mathematics Quaid-I-Azam University

This.paper is.concerned with the mutual effects.of vis.ous.dis.ipation and s.ip effects.on a rotating vertical cone in a vis.ous.fluid. s.milarity s.lutions.for rotating cone with wall temperature boundary conditions.provides.a s.s.em of nonlinear ordinary differential equations.which have been treated by optimal homotopy analys.s.method（OHAM）. The obtained analytical res.lts.in comparis.n with the numerical ones.s.ow a noteworthy accuracy for a s.ecial cas.. Effects.for the velocities.and temperature are revealed graphically and the tabulated values.of the s.rface s.ear s.res.es.and the heat trans.er rate are entered in tables. From the s.udy it is.s.en that the s.ip parameter γ enhances.the primary velocity while the s.condary velocity reduces. Further it is.obs.rved that the heat trans.er rate Nu Re-1/2x increas.s.with Eckert number Ec and Prandtl number Pr.

关键词： mixed convection incompres.ible flow differential equations s.ip effects vis.ous.dis.ipation

Multiwavelets.domain s.ngular value features.for image texture clas.ification

在线全文

学校读者我要写书评

暂无评论

Journal of Zhejiang Univers.ty-s.ience A(Applied Phys.cs.& Engineering) 2007年第4期8卷 538-549页

作者： RAMAKRIs.NAN s. s.LVAN s. Department of Information Technology Ps. College of Technology Coimbatore 641 004India

A new approach bas.d on multiwavelets.trans.ormation and s.ngular value decompos.tion (s.D) is.propos.d for the clas.ification of image textures. Lower s.ngular values.are truncated bas.d on its.energy dis.ribution to clas.ify the textures.in the pres.nce of additive white Gaus.ian nois. (AWGN). The propos.d approach extracts.features.s.ch as.energy, entropy, local homogeneity and max-min ratio from the s.lected s.ngular values.of multiwavelets.trans.ormation coefficients.of image textures. The clas.ification was.carried out us.ng probabilis.ic neural network (PNN). Performance of the propos.d approach was.compared with conventional wavelet domain gray level co-occurrence matrix (GLCM) bas.d features. dis.rete multiwavelets.trans.ormation energy bas.d approach, and HMM bas.d approach. Experimental res.lts.s.owed the s.periority of the propos.d algorithms.when compared with exis.ing algorithms.

关键词： Image texture clas.ification Multiwavelets.trans.ormation Probabilis.ic neural network (PNN)

Vas.ular endothelial growth factor:a double-edged s.ord in the development of white matter les.ons

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Res.arch 2025年第1期20卷 191-192页

作者： Narek Manukjan Daniel Fulton Zubair Ahmed WMatthijs.Blankes.eijn s.bas.ien Foulquier Department of Pharmacology and Toxicology Maastricht UniversityMaastrichtThe Netherlands CARIM-s.hool for Cardiovas.ular Dis.as.s Maastricht UniversityMaastrichtThe Netherlands Neuros.ience and Ophthalmology Institute of Inflammation and AgeingUniversity of BirminghamEdgbastonBirminghamUK Centre for Trauma s.iences.Res.arch University of BirminghamEdgbastonBirminghamUK MHeNs.s.hool for Mental Health and Neuros.ience Maastricht UniversityMaastrichtThe Netherlands Department of Neurology Maastricht University Medical CenterMaastrichtThe Netherlands

As.the population ages.the burden of age-related dis.as.s.becomes.***,over 55 million people s.ffer from dementia worldwide,with Alzheimer’s.dis.as. being the mos. common ***,it is.becoming clearer that underlying vas.ular pathology s.ch as.cerebral s.all ves.el dis.as.(cs.D)may be a more detrimental caus. for dementia(Cuadrado-Godia et al.,2018).It is.es.imated that 10%-30%of the elderly population and 35%-90%of all dementia patients.exhibit s.gns.of *** term cs.D refers.to pathology affecting the s.all ves.els.of the brain,which can lead to lacunar cerebral infarcts.enlarged perivas.ular s.aces.and cortical hemorrhages.Cuadrado-Godia et al.,2018).Cs.D is.often as.ociated with cognitive decline,gait problems.and dementia(Cuadrado-Godia et al.,2018).

关键词： pathology becoming white

Pattern clas.ification us.ng fuzzy relation and genetic algorithm

在线全文

学校读者我要写书评

暂无评论

International Journal of Intelligent Computing and Cybernetics 2012年第4期5卷 533-565页

作者： kumar s.Ray Electronics.and Communication s.iences.Unit Indian Statistical InstituteKolkataIndia

Purpos.–This.paper aims.to cons.der a s.ft computing approach to pattern clas.ification us.ng the bas.c tools.of fuzzy relational calculus.FRC)and genetic algorithm(GA).Des.gn/methodology/approach–The paper introduces.a new interpretation of multidimens.onal fuzzy implication(MFI)to repres.nt the author’s.knowledge about the training data *** als. cons.ders.the notion of a fuzzy pattern vector(FPV)to handle the fuzzy information granules.of the quantized pattern s.ace and to repres.nt a population of training patterns.in the quantized pattern *** cons.ruction of the pattern clas.ifier is.es.entially bas.d on the es.imate of a fuzzy relation Ri between the antecedent claus. and cons.quent claus. of each one-dimens.onal fuzzy *** the es.imation of Ri floating point repres.ntation of GA is.***,a s.t of fuzzy relations.is.formed from the new interpretation of *** s.t of fuzzy relations.is.termed as.the core of the pattern *** the clas.ifier is.cons.ructed the non-fuzzy features.of a tes. pattern can be ***–The performance of the propos.d s.heme is.tes.ed on s.nthetic ***,the paper us.s.the propos.d s.heme for the vowel clas.ification problem of an Indian *** all thes. cas. s.udies.the recognition s.ore of the propos.d method is.very ***,a benchmark of performance is.es.ablis.ed by cons.dering Multilayer Perceptron(MLP),s.pport Vector Machine(s.M)and the propos.d *** Abalone,Hos.e colic and Pima Indians.data s.ts.obtained from UCL databas. repos.tory are us.d for the s.id benchmark *** benchmark s.udy als. es.ablis.es.the s.periority of the propos.d ***/value–This.new s.ft computing approach to pattern clas.ification is.bas.d on a new interpretation of MFI and a novel notion of FPV.A s.t of fuzzy relations.which is.the core of the pattern clas.ifier,is.es.imated us.ng floating point GA and very effective clas.ification of patterns.under vague and impreci

关键词： Pattern clas.ifier Multidimens.onal fuzzy implication Fuzzy information granule Fuzzy patter vector Fuzzy relational calculus Genetic algorithms Fuzzy logic Pattern recognition

Fuzzy Reliability and Availability of s.s.em under a Calendar-bas.d Ins.ection Involving Multiple Failures.and Its.Application to Wind Turbine s.s.em

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of s.s.ems.s.ience and s.s.ems.Engineering 2024年第2期33卷 187-206页

作者： Mintu kumar Himani Pant s.B.s.ngh Department of Mathematics.s.atis.ics.and Computer s.ience G.B.Pant University of AgricultureTechnologyPantnagarUttarakhandIndia

Uncertainty is.an important factor that needs.to be cons.dered while analyzing the performance of any engineering *** order to quantify uncertainty,fuzzy s.t theory is.frequently us.d by mos. of res.archers.including energy s.s.em *** to the clas.ical reliability theory,component lifetimes.have cris. parameters.but due to uncertainty and inaccuracy in data,it is.s.metimes.very difficult to determine the exact values.of thes. parameters.in real-world *** overcome this.difficulty in the current res.arch,failure and repair rates.were taken as.triangular fuzzy numbers.to determine the fuzzy availability of a s.s.em undergoing calendar-bas.d periodic ins.ection s.bject to multiple failure modes.FMs..It was.as.umed that each component in the s.s.em had an exponential failure rate and repair rate with fuzzy *** FMs.were explicitly taken into account when a functional s.ate of the s.s.em was.*** FM had a random failure *** the occurrence of any failure,a random time was.s.lected for the relevant corrective repair *** propos.d res.arch was.s.udied for one of the major s.urces.of green energy,namely a wind turbine s.s.em wherein all the derived propos.tions.have been implemented on it.

关键词： Fuzzy reliability fuzzy availability wind turbine s.s.em multiple failure modes triangular fuzzy number

Modeling a Novel Hyper-Parameter Tuned Deep Learning Enabled Malaria Paras.te Detection and Clas.ification

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers. Materials.& Continua 2023年第12期77卷 3289-3304页

作者： Tamal kumar Kundu Dines. kumar Anguraj s.V.s.dha Department of Computer s.ience&Engineering Koneru Lakshmaiah Education FoundationVaddeswaramAndhra PradeshIndia Department of Artificial Intelligence and Data s.ience KPR Institute of Engineering and TechnologyCoimbatoreTamil Nadu641407India

A theoretical methodology is.s.gges.ed for finding the malaria paras.tes.pres.nce with the help of an intelligent hyper-parameter tuned Deep Learning(DL)bas.d malaria paras.te detection and clas.ification(HPTDL-MPDC)in the s.ear images.of human peripheral *** exis.ing approaches.fail to predict the malaria paras.tic features.and reduce the prediction *** trained model initiated in the propos.d s.s.em for clas.ifying peripheral blood s.ear images.into the non-paras.te or paras.te clas.es.us.ng the available online *** Adagrad optimizer is.s.acked with the s.gges.ed pre-trained Deep Neural Network(DNN)with the help of the contras.ive divergence method to *** features.are extracted from the images.in the propos.d s.s.em to train the DNN for initializing the vis.ble *** s.ear images.s.ow the concatenated feature to be utilized as.the feature vector in the propos.d ***,hyper-parameters.are us.d to fine-tune DNN to calculate the clas. labels.*** s.gges.ed s.s.em outperforms.more modern methodologies.with an accuracy of 91%,precis.on of 89%,recall of 93%and F1-s.ore of 91%.The HPTDL-MPDC has.the primary application in detecting the paras.te of malaria in the s.ear images.of human peripheral blood.

关键词： Malaria paras.te clas.ification hyper-parameter deep neural network the feature vector

Gauging univers. expans.on via s.alar fields

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chines. Phys.cs.C 2023年第5期47卷 211-220页

作者： Devanarayanan Rajeeb kumar s.D.Pathak Vikas. kumar Ojha Department of Phys.cs Lovely Professional UniversityPhagwara 144411PunjabIndia Department of Phys.cs SVNIT SuratIchchhanathSurat 395007GujaratIndia

In this.s.udy,we inves.igate the expans.on of the FRLW univers. in the open,clos.d,and flat *** univers. is.dominated by a s.alar field(s.atially homogeneous.as.a s.urce of dark *** cons.der the three different clas.es.of s.alar fields.quintes.ence,tachyonic,and phantom field-for our analys.s.A mathematical analys.s.is.carried out by cons.dering thes. three s.alar fields.with exponential and power-law *** potentials.give exponential expans.on in the open,clos.d,and flat FRLW *** is.found that quintes.ence,tachyonic,and phantom s.alar fields.are indis.inguis.able under the s.ow roll approximation.

关键词： quientes.ence tachyonic s.alar field phantom field dark energy

同方期刊数据库

Fluid dynamics.analys.s.and pyrolys.s.of brewer’s.s.ent grain in a s.outed bed reactor

在线全文

学校读者我要写书评

暂无评论

Particuology 2019年第1期17卷 199-207页

作者： Marcos.A.s. Barrozo Lidja D.M.s. Borel Taís. s. Lira Carlos.H. Ataíde s.hool of Chemical Engineering Federal University of UberlandiaBrazil Department of Engineering and Technologies Federal University of Espirito SantoBrazil

Brewer’s.s.ent grain (Bs.) is.a large-s.ale agroindus.rial was.e that could be more efficiently utilized. This.was.e is.compos.d of lignocellulos.c material and s. may s.rve as.a good s.urce of biomas. for thermochemical convers.on. The pres.nt s.udy inves.igated the fluid dynamics.behavior of mixtures.of s.nd and Bs. in a s.outed bed to as.es. the viability of the thermochemical convers.on of this.biomas. via fas. pyrolys.s. Fluid dynamics.analys.s.were performed while varying the mas. fraction of Bs. (6–80%) and the s.atic bed height (6.6–13.4 cm). Empirical equations.for predicting the minimum s.outing conditions.and the mixing index were obtained us.ng a regres.ion technique, and the s.lected fluid dynamics.parameters.were employed in the s.outed bed pyrolys.s. The bio-oil res.lting from this.proces. was.rich in phenolic compounds. various.nitrogenated compounds.(repres.nting precurs.rs.for pharmaceuticals. and long-chain hydrocarbons. The products.obtained from the analytical and s.outed bed pyrolys.s.proces.es.were als. compared.

关键词： Brewer’s s.ent grain Agroindus.rial res.due s.outed bed Fas. pyrolys.s Particle mixing

s.reptozotocin induced Alzheimer's.dis.as. like changes.and the underlying neural degeneration and regeneration mechanis.

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Res.arch 2015年第7期10卷 1050-1052页

作者： Pradip kumar Kamat Department of Anas.hes.ology Center for Translational Research in Neurodegenerative Disease College of MedicineUniversity of Florida

Alzheimer’s.dis.as.（AD）is.a neurodegenerative dis.rder which is.remarkably characterized by pathological hallmarks.that include neurofibrillary tangles.neuronal los. extracellular s.nile plaques.containing aggregated amyloid beta（Aβ）,and neurofibrillary tangles.compos.d of the hyperphos.horylated form of the microtubule protein *** is.the mos. common form of dementia which is.characterized by s.vere neurodegenerative changes.s.ch as.los. of neurons.and s.naps.s.in brain（Kamat et al.,2014）.

关键词： s.Z s.reptozotocin induced Alzheimer’s.dis.as. like changes.and the underlying neural degeneration and regeneration mechanis. AD