Browsing Mathematics, Statistics & Physics by Title

Now showing items 56-75 of 666

    • An unbalanced ranked-set sampling method to get more than one sample from each set 

      Panahbehagh, B.; Bruggemann, R.; Parvardeh, A.; Salehi, M.; Sabzalian, M.R. ( American Association for Public Opinion Research , 2018 , Article)
      In ranked-set sampling, the restriction of selecting just one individual from each set may require too many sets. We propose a new version of ranked-set sampling that relaxes this restriction. Our new design uses stratified ...

    • Analysis of bioconvection and oxytactic microorganisms in a porous cavity with nano-enhanced phase change materials and quadrant heater: Application of support vector regression based model 

      Hussain, Shafqat; Ertam, Fatih; Hamida, Mohamed Bechir Ben; Oztop, Hakan F.; Abu-Hamdeh, Nidal H. ( Elsevier , 2023 , Article)
      In this numerical study, two-dimensional simulations are performed to obtain the bioconvection flow in a quadrant heater located porous closed space saturated with nano-enhanced phase change material (NePCM). The Galerkin ...

    • Analysis of ferrite nanoparticles in the flow of ferromagnetic nanofluid 

      Muhammad N.; Nadeem S.; Mustafa M.T. ( Public Library of Science , 2018 , Article)
      Theoretical analysis has been carried out to establish the heat transport phenomenon of six different ferromagnetic MnZnFe2O4-C2H6O2 (manganese zinc ferrite-ethylene glycol), NiZnFe2O4-C2H6O2 (Nickel zinc ferrite-ethylene ...

    • Analysis of particulate behavior in porous media 

      Siyyam, Hani I.; Hamdan, M.H. ( Shanghai University Press , 2008 , Article)
      In this work, we analyze the behavior of the particle phase in the flow of a particle-laden mixture through a porous medium. An attempt is made to model the diffusion and dispersion processes, and to quantify the deviation ...

    • Analysis of spatial data with a nested correlation structure 

      Adegboye O.A.; Leung D.H.Y.; Wang Y.-G. ( Blackwell Publishing Ltd , 2018 , Article)
      Spatial statistical analyses are often used to study the link between environmental factors and the incidence of diseases. In modelling spatial data, the existence of spatial correlation between observations must be ...

    • Analysis of spatial data with a nested correlation structure 

      Adegboye, Oyelola A.; Leung, Denis H. Y; Wang, You-Gan ( Wiley , 2017 , Article)
      Spatial statistical analyses are often used to study the link between environmental factors and the incidence of diseases. In modelling spatial data, the existence of spatial corre- lation between observations must be ...

    • Analytical approach to the Darcy–Lapwood–Brinkman equation 

      Merabet, N.; Siyyam, H.; Hamdan, M.H. ( Elsevier , 2007 , Article)
      Three exact solutions are obtained for flow through porous media, as governed by the Darcy–Lapwood–Brinkman model, for a given vorticity distribution. The resulting flow fields are identified as reversing flows; stagnation ...

    • Antiferromagnetism in EuPdGe3 

      Albedah, M.A.; Al-Qadi, K.; Stadnik, Z.M.; Przewoznik, J. ( Elsevier Ltd , 2014 , Article)
      The results of X-ray diffraction, magnetic susceptibility and magnetization, and 151Eu Mössbauer spectroscopy measurements of polycrystalline EuPdGe3 are reported. EuPdGe3 crystallizes in the BaNiSn3-type tetragonal structure ...

    • Antihydrogen physics: Gravitation and spectroscopy in AEgIS 

      Ferragut, R.; Belov, A. S.; Bonomi, G.; Boscolo, I.; Brusa, R. S.; ... more authors ( Canadian science publishing , 2011 , Article)
      AEgIS (Antimatter experiment: gravity, interferometry, spectroscopy) is an experiment approved by CERN with the goal of studying antihydrogen physics. In AEgIS, antihydrogen will be produced by charge exchange reactions ...

    • Antioxidant and antihypertensive properties of phenolic-protein complexes in extracted protein fractions from Nigella damascena and Nigella arvensis 

      Alu'datt, Muhammad H.; Rababah, Taha; Alhamad, Mohammad N.; Gammoh, Sana; Ereifej, Khalil; ... more authors ( Elsevier , 2016 , Article)
      The study involved the investigation of the antioxidant and antihypertensive properties of the phenolic–protein complexes obtained from isolated protein fractions from Nigella damascena and Nigella arvensis. Protein fractions ...

    • Application of Balanced Acceptance Sampling to an Intertidal Survey 

      Abi, Naeimeh; Moradi, Mohammad; Salehi, Mohammad; Brown, Jennifer; Al-Khayat, Jassim A.; ... more authors ( De Gruyter Open Ltd , 2017 , Article)
      In ecological studies, the population of interest is often spread over a large area. In these studies, obtaining a sample with good spatial coverage is an important feature in the design of a survey. In most cases adjacent, ...

    • Application of garch model to forecast data and volatility of share price of energy (Study on adaro energy Tbk, LQ45) 

      Virginia E.; Ginting J.; Elfaki F.A.M. ( Econjournals , 2018 , Article)
      Most of the times, Economic and Financial data not only become highly volatile but also show heterogeneous variances (heteroscedasticity). The common method of the Box Jenkins cannot be used for data modeling as the method ...

    • Application of generalized differential transform method to multi-order fractional differential equations 

      Ertürk, Vedat Suak; Momani, Shaher; Odibat, Zaid ( Elsevier , 2007 , Article)
      In a recent paper [Odibat Z, Momani S, Erturk VS. Generalized differential transform method: application to differential equations of fractional order, Appl Math Comput. submitted for publication] the authors presented a ...

    • Application of Homotopy Perturbation Method to Singularly Perturbed Volterra Integral Equations 

      Alnasr, M.H.; Momani, Shaher ( Asian Network for Scientific Information , 2008 , Article)
      In this study, the Homotopy-Perturbation Method (HPM) proposed by J.-H. He is adopted for solving singularly perturbed Volterra integral equations (SVIEs). Three numerical examples are given to demonstrate the effectiveness ...

    • Application of homotopy-perturbation method to fractional IVPs 

      Abdulaziz, O.; Hashim, I.; Momani, S. ( Elsevier , 2008 , Article)
      Fractional initial-value problems (fIVPs) arise from many fields of physics and play a very important role in various branches of science and engineering. Finding accurate and efficient methods for solving fIVPs has become ...

    • Application of integral equations to simulating local fields in carbon nanotube reinforced composites 

      Mohamed M.S., Nasser; Kalmoun, El Mostafa ( Elsevier , 2020 , Book chapter)
      We consider the steady heat conduction problem within a thermal isotropic and homogeneous square ring composite reinforced by nonoverlapping and randomly distributed carbon nanotubes (CNTs). We treat the CNTs as rigid line ...

    • Application of solar PV in the building sector: Prospects and barriers in the GCC region 

      Ghaleb, Belal; Abbasi, Saddam Akber; Asif, Muhammad ( Elsevier , 2023 , Article)
      Solar Photovoltaic (PV) can make a significant contribution towards reducing the energy and environmental footprint of buildings. Helped by features like scalability, ease of use, and declining price, PV has become the ...

    • Applied surface Science: Preface 

      Al-Qaradawi, Ilham; Coleman, Paul ( Elsevier , 2006 , Other)
      not available

    • Approximate analytic solutions of transient nonlinear heat conduction with temperature-dependent thermal diffusivity 

      Mustafa, M.T.; Arif, A.F.M.; Masood, Khalid ( Hindawi Publishing Corporation , 2014 , Article)
      A new approach for generating approximate analytic solutions of transient nonlinear heat conduction problems is presented. It is based on an effective combination of Lie symmetry method, homotopy perturbation method, finite ...

    • Approximate solutions to the generalized time-fractional ito system 

      Jaradat, H. M.; Jaradat, Imad; Alquran, Marwan; Jaradat, M. M.M.; Mustafa, Zead; ... more authors ( Forum-Editrice Universitaria Udinese SRL , 2017 , Article)
      In this work, we consider the time-fractional version of the well-known integrable Ito system to study the effect of its fractional index "memory index". A modified approach of a relatively new method called residual power ...