Browsing Mathematics, Statistics & Physics by Type "Conference Paper"

Now showing items 21-40 of 49

    • Measuring the fall of antihydrogen: The AEGIS experiment at CERN 

      Doser, M.; Allkofer, Y.; Amsler, C.; Belov, A. S.; Bonomi, G.; ... more authors ( Elsevier B.V. , 2011 , Conference Paper)
      Considerable efforts have been made and are still being made to verify the validity of the principle of the equivalence of gravitational and inertial mass, one of the cornerstones of the classical theory of general relativity. ...

    • Microstructure of heat-treated steel probed by positron annihilation 

      Al-Qaradawi, I. Y.; Abdel-Hady, E. E.; Megahed, H. (2001 , Conference Paper)
      Positron annihilation lifetime technique has been applied to study the microstructure change in steel after heat treatment. For this purpose, the specimens are heat treated in various manners; normalizing, annealing, ...

    • Model for oscillations in the guidance of ions through insulating nanocapillaries 

      Pokhil, G.; Merabet, H.; Stolterfoht, N. ( IOP Publishing , 2011 , Conference Paper)
      The pre-equilibrium period of the ion guiding through insulating nanocapillaries is characterized by the production of temporary charge patches inside the capillaries. The dynamics of the charge patch creation is revealed ...

    • Model predictive control of selective catalytic reduction in diesel-powered vehicles 

      Pakravesh, Hallas; Dubljevic, Stevan; Hayes, Robert E.; Forbes, J. Fraser; Aksikas, Ilyasse ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)
      This paper proposes a method to synthesize an optimal controller for the SCR section of the diesel exhaust after-treatment system, which is based on a system model consisting of coupled hyperbolic and parabolic partial ...

    • Model robust profile monitoring for the generalized linear mixed model for Phase I analysis 

      Bandara, Keerthi; Abdel-Salam, Abdel-Salam G.; Birch, Jeffrey B. ( John Wiley and Sons Ltd , 2020 , Conference Paper)
      The generalized linear mixed model (GLMM) becomes very popular in profile monitoring, especially when the production processes follow nonnormal distribution. In most of the real-life applications in industry, medicine, ...

    • Monitoring Coefficient of Variation Using Progressive Mean Technique 

      Abbasi S.A.; Mohamed M.A.; Ahmed M.A.; Lajara R.J.; Hadi H.F. ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Conference Paper)
      Control charts are mostly used for the monitoring of process mean and dispersion. In cases, when the process standard deviation is proportional to the mean, it is recommended to use control charts based on coefficient of ...

    • Multi-species attributes as the condition for adaptive sampling of rare species using two-stage sequential sampling with an auxiliary variable 

      Panahbehagh, B.; Smith, D. R.; Salehi, M. M.; Hornbach, D. J.; ; ... more authors ( The Modelling and Simulation Society of Australia and New Zealand Inc , 2011 , Conference Paper)
      Assessing populations of rare species is challenging because of the large effort required to locate patches of occupied habitat and achieve precise estimates of density and abundance. The presence of a rare species has ...

    • Numerical conformal mapping onto the entire complex plane bounded with finite straight slit and logarithmic spiral slits 

      Yunus A.A.M.; Yunus A.; Nasser M.M.S. ( Institute of Physics Publishing , 2019 , Conference Paper)
      This paper presents a fast boundary integral equation method with for computing conformal mappings of multiply connected regions. We consider the canonical region consists of the entire complex plane bounded by a finite ...

    • Numerical conformal mapping onto the exterior unit disk with a straight slit and logarithmic spiral slits 

      Murid A.H.M.; Yunus A.A.M.; Nasser M.M.S. ( Institute of Physics Publishing , 2019 , Conference Paper)
      This paper presents a fast boundary integral equation method for numerical conformal mapping of unbounded multiply connected regions onto a disk with an infinite straight slit and finite logarithmic spiral slits. Some ...

    • Observer design for hyperbolic PDEs system with application to a fixed-bed chemical reactor model 

      Aksikas, Ilyasse ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)
      This work is devoted to the development of an optimal infinite-dimensional Luenberger observer for a system of hyperbolic PDEs. For this purpose, the duality fact linking the control design and the observer design is used. ...

    • Online monitoring of climatic parameters: a statistical study about environmental changes in Qatar 

      Mahmood, Tahir; Abbasi, Saddam Akber; Riaz, Muhammad ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)
      Twentieth century has witnessed unprecedented changes in the climate whose profound effects are also observed on ecosystem and human life. The source of these changes are presumed to be increasing concentration of greenhouse ...

    • Optimal control of a time-varying system of coupled parabolic-hyperbolic PDEs 

      Aksikas, Ilyasse; Moghadam, Amir Alizadeh; Forbes, Fraser ( IEEE Computer Society , 2017 , Conference Paper)
      This paper is devoted to design an optimal linear quadratic controller for a time-varying system of coupled parabolic and hyperbolic partial differential equations (PDEs). Infinite-dimensional state space approach is adopted ...

    • Optimal Production Planning Strategy for Deteriorating Items in Terms of Emission Tax, Pollution, and R&D Investment 

      Tadj, L.; Garg, A.K.; Hamdi, A. ( Springer Science and Business Media B.V. , 2018 , Conference Paper)
      Firms are faced with the question of what policies to implement to ensure efficient abatement behavior? In this paper, we aim to determine the optimal production rate and the optimal investment rate in pollution abatement ...

    • Parametric Model Based on Imputations Techniques for Partly Interval Censored Data 

      Zyoud A.; Elfaki F.A.M.; Hrairi M. ( Institute of Physics Publishing , 2018 , Conference Paper)
      The term 'survival analysis' has been used in a broad sense to describe collection of statistical procedures for data analysis. In this case, outcome variable of interest is time until an event occurs where the time to ...

    • Patient Counseling Practices among Community Pharmacists in Qatar 

      Javed, Bridget; Kheir, Nadir; Yousif, Adil ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)
      Patient counseling is a term used in the field of pharmacy to describe the communication that takes place between a pharmacist and a patient in regards to his or her medication therapy. Patient counseling is deemed to be ...

    • Positron annihilation lifetime study of helium ions implanted polyethylene blends 

      Al-Qaradawi, I. Y.; Madi, N. K. ( Trans Tech Publications Ltd , 2004 , Conference Paper)
      The structural defects of linear low density polyethylene (LLDPE) and high density polyethylene (HOPE) blends implanted with helium ions were investigated using position annihilation lifetime (PAL) technique. The positron ...

    • Positron annihilation studies of the effect of gamma irradiation dose in polymers 

      Al-Qaradawi, I. Y.; Britton, D. T.; Abdel-Hady, E. E.; Abdulmalik, D. A.; Al-Shobaki, M. A.; ... more authors ( Elsevier Ltd , 2003 , Conference Paper)
      Positron annihilation lifetime (PAL) technique has been applied to study the effect of gamma irradiation dose on the structure of low-density polyethylene and polystyrene. The positron annihilation lifetime measurements ...

    • Production of hazardous gas sensors using spinel ferrite nanoparticles 

      Ayesh, Jocelyn; Abu Haija, Mohammad ( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)
      This work reports on sensitive and selective gas sensors based on copper ferrite (CuFe2O4) nanoparticles. The nanoparticles were produced different methods including: colloid microwave assisted hydrothermal method, and ...

    • Production of hazardous gas sensors using spinel ferrite nanoparticles 

      Ayesh, Ahmad Ibrahim ( Hamad bin Khalifa University Press (HBKU Press) , 2018 , Conference Paper)
      This work reports on sensitive and selective gas sensors based on copper ferrite (CuFe2O4) nanoparticles. The nanoparticles were produced different methods including: colloid microwave assisted hydrothermal method, and ...

    • Production Of Size-selected Copper Nanoclusters For Petroleum Refinery Applications 

      Ayesh, Ahmad ( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)
      Atomic nanoclusters exhibit large surface to volume ratio which enhances their ability to interact with external materials, thus, they can be utilized efficiently for catalysts and gas sensing applications. Copper (Cu) ...