Now showing items 481-500 of 27412

    • ISO 9000:2000 quality management standard: Experience in the state of Qatar 

      Al-Khalifa, Khalifa; Mohamed, Tamer A.; Al-Salem, Ameer ( Inderscience Publishers , 2008 , Article)
      The main purpose of this paper is to assess the experience of different organisations in the state of Qatar upon adopting the ISO 9000:2000 quality management standard. It is required to report the available motives, ...
    • An efficient fault variable identification methodology for distribution-free data stream 

      Turkoz, Mehmet; Kim, Sangahn; Jeong, Youngseon; Jeong, Myong K.; Elsayed, Elsayed A.; ... more authors ( Institute of Industrial Engineers , 2020 , Conference Paper)
      An efficient fault variable identification methodology for distribution-free data stream
    • Approximate methods for optimal replacement, maintenance, and inspection policies 

      Zhao, Xufeng; Al-Khalifa, Khalifa N.; Nakagawa, Toshio ( Elsevier , 2015 , Article)
      It might be difficult sometimes to derive theoretical and numerical solutions for analytical maintenance modelings due to the computational complexity. This paper takes up several approximate models in maintenance theory, ...
    • A model-based crash prediction technique for Chinese roadway segments 

      Vaghefi, Seyed A.; Jafari, Mohsen A.; Jafari, Bobby; Rezvani, Amir Zahiredin; Gang, Tao; ... more authors ( Intelligent Transport Systems (ITS) , 2014 , Conference Paper)
      This paper presents development and application of a statistical crash prediction model for various types of crashes in Chinese roadway segments. The model is constructed based upon a Negative Binomial Generalized Linear ...
    • ISO 9000 performance among the Malaysian companies: The effects of motives 

      Gader, A.M.A.; Ismail, M. Yousof; Hamouda, A.M.S.; Ismail, N.; Al-Khalifa, Khalifa ( Inderscience Publishers , 2009 , Article)
      This paper presents the results of a study to identify the real motives behind ISO 9000 Certification. Towards this goal, a survey of some 300 ISO 9000 certified companies has been carried out for Malaysian manufacturing ...
    • Critical success factors of TQM: A UK study 

      Al-Khalifa, Khalifa; Aspinwall, Elaine ( Inderscience Publishers , 2008 , Article)
      This paper has presented the results of a study on Critical Success Factors for Total Quality Management (TQM) implementation in UK organisations. A survey instrument (10 Success Factors) developed by Yusof and Aspinwall ...
    • Higher order self-adjoint operators with polynomial coefficients 

      Azad, Hassan; Laradji, Abdallah; Mustafa, Muhammad Tahir ( Texas State University - San Marcos , 2017 , Article)
      We study algebraic and analytic aspects of self-adjoint operators of order four or higher with polynomial coefficients. As a consequence, a systematic way of constructing such operators is given. The procedure is applied ...
    • The Situation of Incommensurability in Strategic Management 

      Talaoui, Yassine ( NICCOLO’ CUSANO UNIVERSITY , 2023 , Article)
      The field of strategic management has witnessed a proliferation of theoretical perspectives following two main paradigms. The two camps roughly correspond, on the one hand, to the "classical" and "neo-classical" approaches, ...
    • Nanofluid in tilted cavity with partially heated walls 

      M., Hosseini; Mustafa, M.T.; Jafaryar, M.; Mohammadian, E. ( Elsevier , 2014 , Article)
      Lattice Boltzmann Method is applied to investigate the natural convection flow utilizing nanofluids in square enclosure with partially heated walls. The fluid in the cavity is a water-based nanofluid containing different ...
    • Population dynamics and predatory impact of the alien jellyfish Aurelia solida (Cnidaria, Scyphozoa) in the Bizerte Lagoon (southwestern Mediterranean Sea) 

      Gueroun, Sonia K.M.; Molinero, Juan Carlos; Piraino, Stefano; Yahia, Mohamed Nejib Daly ( Hellenic Centre for Marine Research , 2020 , Article)
      Understanding the life cycle strategies and predatory impact of alien jellyfish species is critical to mitigate the impact that these organisms may have on local populations, biodiversity, and ultimately on the functioning ...
    • A method for generating approximate similarity solutions of nonlinear partial differential equations 

      Iqbal, Mazhar; Mustafa, M. T.; Siddiqui, Azad A. ( Hindawi Publishing Corporation , 2014 , Article)
      Standard application of similarity method to find solutions of PDEs mostly results in reduction to ODEs which are not easily integrable in terms of elementary or tabulated functions. Such situations usually demand solving ...
    • Symmetry analysis of the Klein-Gordon equation in Bianchi i spacetimes 

      Paliathanasis, A.; Tsamparlis, M.; Mustafa, M. T. ( World Scientific , 2015 , Article)
      In this work we perform the symmetry classification of the Klein-Gordon equation in Bianchi I spacetime. We apply a geometric method which relates the Lie symmetries of the Klein-Gordon equation with the conformal algebra ...
    • Noether symmetries and conservation laws of wave equation on static spherically symmetric spacetimes with higher symmetries 

      M.T., Mustafa; Al-Dweik, Ahmad Y. ( Elsevier , 2014 , Article)
      In Bokhari et al. (2011), the Noether symmetries of the wave equation on a general spherically symmetric spacetime metric were provided in terms of five functions of the variables t and r subject to certain differential ...
    • Phytoplankton size changes and diversity loss in the southwestern Mediterranean Sea in relation to long-term hydrographic variability 

      Ramírez-Romero, Eduardo; Molinero, Juan Carlos; Sommer, Ulrich; Salhi, Noussaiba; Kéfi - Daly Yahia, Ons; ... more authors ( Academic Press , 2020 , Article)
      Structural changes in plankton primary producers have large implications for food web dynamics, energy fluxes and the vertical export of biogenic particulate carbon. Here we examine phytoplankton data spanning the period ...
    • Ferromagnetic effects for nanofluid venture through composite permeable stenosed arteries with different nanosize particles 

      Akbar, Noreen Sher; Mustafa, M. T. ( American Institute of Physics , 2015 , Article)
      In the present article ferromagnetic field effects for copper nanoparticles for blood flow through composite permeable stenosed arteries is discussed. The copper nanoparticles for the blood flow with water as base fluid ...
    • An alternative proof of Lie’s linearization theorem using a new λ-symmetry criterion 

      Ahmad Y., Al-Dweik; Mustafa, M.T.; Mara’Beh, Raed A.; Mahomed, F.M. ( Elsevier , 2015 , Article)
      An alternative proof of Lie’s approach for the linearization of scalar second-order ordinary differential equations is derived by using the relationship between λ-symmetries and first integrals. This relation further leads ...
    • A novel index based on planktonic copepod reproductive traits as a tool for marine ecotoxicology studies 

      Mohamed Bakr, Hussain; Laabir, Mohamed; Daly Yahia, Mohamed Nejib ( Elsevier B.V. , 2020 , Article)
      Copepods are excellent bioindicators of climate change and ecosystem pollution in anthropized coastal waters. This work reviewed the results of previous studies examining changes in egg production rate (EPR), hatching ...
    • Mathematical analysis of ferromagnetic fluid embedded in a porous medium 

      Sohail, Nadeem; Raishad, Irum; Muhammad, Noor; Mustafa, M.T. ( Elsevier , 2017 , Article)
      This article focuses on the impacts of heat transport phenomenon in a ferrofluid in presence of a magnetic dipole. The flow is caused by stretching of the surface. The analysis is disclosed with porous medium and thermal ...
    • Global variability in seawater Mg:Ca and Sr:Ca ratios in the modern ocean 

      Lebrato, Mario; Garbe-Schönberg, Dieter; Müller, Marius N.; Blanco-Ameijeiras, Sonia; Feely, Richard A.; ... more authors ( National Academy of Sciences , 2020 , Article)
      Seawater Mg:Ca and Sr:Ca ratios are biogeochemical parameters reflecting the Earth–ocean–atmosphere dynamic exchange of elements. The ratios’ dependence on the environment and organisms’ biology facilitates their application ...
    • Chemically reactive species in the flow of a Maxwell fluid 

      Sohail, Nadeem; Ahmad, Shafiq; Muhammad, Noor; Mustafa, M.T. ( Elsevier , 2017 , Article)
      This article presents a research for boundary layer flow and heat transfer of a Maxwell fluid over an exponential stretching surface with thermal stratifications. The effect of homogeneous and heterogeneous reaction are ...