• A Multivariate Homogeneously Weighted Moving Average Control Chart 

      Adegoke, Nurudeen A.; Abbasi, Saddam Akber; Smith, Adam N. H.; Anderson, Marti J.; Pawley, Matthew D. M. ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)
      This paper presents a multivariate homogeneously weighted moving average (MHWMA) control chart for monitoring a process mean vector. The MHWMA control chart statistic gives a specific weight to the current observation, and ...
    • An Assorted Design for Joint Monitoring of Process Parameters: An Efficient Approach for Fuel Consumption 

      Saeed, Usman; Riaz, Muhammad; Abbas, Nasir; Abbasi, Saddam Akber ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)
      Due to high fuel consumption, we face the problem of not only the increased cost, but it also affects greenhouse gas emission. This paper presents an assorted approach for monitoring fuel consumption in trucks with the ...
    • An Improved Control Chart for Monitoring Linear Profiles and its Application in Thermal Conductivity 

      Riaz, Muhammad; Saeed, Usman; Mahmood, Tahir; Abbas, Nasir; Abbasi, Saddam Akber ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)
      In most of the manufacturing processes, we encounter different quality characteristics of a product and process. These characteristics can be categorized into two kinds; study variables (variable of interest) and the ...
    • Bayesian Monitoring of Linear Profiles Using DEWMA Control Structures with Random X 

      Abbasi, Saddam Akber; Abbas, Tahir; Riaz, Muhammad; Gomaa, Abdel Salam ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Article)
      The process structures of manufacturing industry are efficiently modeled using linear profiles. Classical and Bayesian set-ups are two well-appreciated schemes for designing control charts for the monitoring of process ...
    • Boundary linear-quadratic control for a system of coupled parabolic-hyperbolic PDEs and ODE 

      Aksikas A.; Aksikas I.; Hayes R.E.; Forbes F. ( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)
      The paper deals with the design of a boundary optimal controller for a general model of parabolic-hyperbolic PDEs coupled with an ODE. The augmented infinite-dimensional state space representation has been used in order ...
    • Boundary Output-Feedback Regulation of a Catalytic Cracking Reactor 

      Aksikas, Ilyasse ( Institute of Electrical and Electronics Engineers Inc. , 2023 , Conference Paper)
      This work focuses on the design of a boundary output feedback regulator for a catalytic cracking reactor model which can be represented by a set of partial differential equations (PDEs). Based on the linear abstract ...
    • Efficient control charts for monitoring process CV using auxiliary information 

      Abbasi, Saddam Akbar ( Institute of Electrical and Electronics Engineers Inc. , 2020 , Article)
      Coefficient of variation (CV) control charts are a suitable choice for the monitoring of variation in cases when the process standard deviation is proportional to the process mean. This study is aimed at enhancing the ...
    • Efficient cv control charts based on ranked set sampling 

      Abbasi, Saddam Akber; Abbas, Tahir; Adegoke, Nurudeen Adedayo ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)
      Monitoring process variability is essential for establishing efficient process-control schemes. In practice, when the mean levels of a parameter are constant, and the process variance (or standard deviation) is independent ...
    • Enhancing passive UHF RFID backscatter energy using chirp spread spectrum signals and channel shortening 

      Ben-Jabeur, Taoufik; Kadri, Abdullah; Hazaa, Khalifa Abdulla ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)
      Performance of passive ultrahigh frequency radio-frequency identification (UHF RFID) systems depends on the energy level of the backscattered signal from the RF tag to the RFID reader. In the indoor environment, the ...
    • Error-feedback regulation of a distributed parameter cracking process by using a spectral approach 

      Aksikas, Ilyasse ( Institute of Electrical and Electronics Engineers Inc. , 2023 , Conference Paper)
      The paper focuses on controlling a distributed parameter cracking process using state and error feedback regulators. The principal aim is to accomplish tracking of a desired output while effectively managing disturbances ...
    • Finding the Nearest Negative Imaginary System with Application to Near-Optimal Controller Design 

      Mabrok, M.A.; Mabrok, Mohamed A. ( Institute of Electrical and Electronics Engineers Inc. , 2023 , Conference Paper)
      In this paper, we consider the problem of robust stabilization of linear time-invariant systems with respect to unmodeled dynamics and structure uncertainties. To that end, we first present a methodology to find the nearest ...
    • Koopman Operator Approximation Under Negative Imaginary Constraints 

      Mabrok, Mohamed A.; Aksikas, Ilyasse; Meskin, Nader ( Institute of Electrical and Electronics Engineers Inc. , 2023 , Article)
      Nonlinear Negative Imaginary (NI) systems arise in various engineering applications, such as controlling flexible structures and air vehicles. However, unlike linear NI systems, their theory is not well-developed. In this ...
    • 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 ...
    • 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 ...
    • Multivariate Mixed EWMA-CUSUM Control Chart for Monitoring the Process Variance-Covariance Matrix 

      Muhammad; Ajadi, Jimoh Olawale; Mahmood, Tahir; Abbasi, Saddam Akber ( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)
      The dispersion control charts monitor the variability of a process that may increase or decrease. An increase in dispersion parameter implies deterioration in the process for an assignable cause, while a decrease in ...
    • 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. ...
    • One-Sided and Two One-Sided Multivariate Homogeneously Weighted Moving Charts for Monitoring Process Mean 

      Adegoke, Nurudeen A.; Riaz, Muhammad; Ganiyu, Khadijat Oladayo; Abbasi, Saddam Akber ( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)
      Multivariate memory-type control charts that use information from both the current and previous process observations have been proposed. They are designed to detect shifts in both upper and downward directions with equal ...
    • Robust adaptive learning control for different classes of dissipative vehicle systems 

      Mabrok, M.A.; Tran, Vu Phi; Petersen, Ian R.; Garratt, Matthew A. ( Institute of Electrical and Electronics Engineers Inc. , 2022 , Conference Paper)
      This paper presents a methodology that leverages learning techniques and robust control theory to design an adaptive controller for a wide class of linear dynamical dissipative vehicle systems. In particular, learning ...
    • Run Rules-Based EWMA Charts for Efficient Monitoring of Profile Parameters 

      Yeganeh, Ali; Shadman, Ali Reza; Triantafyllou, Ioannis S.; Shongwe, Sandile Charles; Abbasi, Saddam Akber ( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)
      In usual quality control methods, the quality of a process or product is evaluated by monitoring one or more quality characteristics using their corresponding distributions. However, when the quality characteristic is ...
    • Single-step feedback linearization with assignable dynamics for hyperbolic PDE 

      Aksikas, Ilyasse; Dubljevic, Stevan ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)
      The present work proposes an extension of single-step feedback linearization with pole-placement formulation to the class of nonlinear hyperbolic systems. In particular, the mathematical formulation in the context of ...