Now showing items 1410-1429 of 2199

    • Numerical simulations for the optimization of online wash systems for gas turbines 

      Nawar, Hamzeh Ahmed (2011-05)
      During gas turbine operation, large amounts of small particles are ingested along with the air inflow. As a result, the blade shape changes over time, hence affecting the air flow pattern and reducing efficiency. Field ...
    • Numerical Simulations of Drag-Reducing Devices for Ground Vehicles 

      Mazyan, Walid Ibrahim (2013-01)
      The aim of the present study is to reduce the aerodynamic drag coefficient of ground vehicles. With the application of efficient drag reducing devices, aerodynamic drag is significantly reduced. This study analyzes numerically ...
    • Numerical Study of Localization Failure in Structural Steel Under Impact Loading 

      Makarem, Fadi (2011-10)
      High quality steels are used as a skeleton supporting many infrastructure constructions like, for example, skyscrapers, arenas, stadiums, bridges and others. The likelihood that these structures could be severely damaged ...
    • Nutrient Recovery from Wastewater Using Desalination Reject Brine 

      Kamel, Alaa Yasser Ahmed Fouad (2020-11)
      Reject brine, a waste by-product generated during the desalination process, is harmful when discharged into the environment, but it contains some useful minerals such as magnesium. Also, wastewater treatment plants utilizing ...
    • Objectively quantified physical activity and sedentary behaviour in a young UAE population 

      Dalibalta, Sarah; Majdalawieh, Amin; Yousef, Sarah M.; Gusbi, Mohammed; Wilson, Jason J; Tully, Mark A; Davison, Gareth (BMJ Publishing Group, 2021)
      Objectives There is a lack of public awareness of the importance of engaging in physical activity (PA) in the United Arab Emirates (UAE). Nearly 58% of the UAE adult population self-reports as being physically inactive ...
    • Ocean Thermal Energy Conversion (OTEC) 

      Maarouf, Nisreen; Motiwala, Mehak; Mustafa, Syed Hamdan; Saeed, Hafsa (2015-02-01)
      Depletion of fossil fuels and gasoline, and their effect on the global climate, necessitate the need for an alternative source of energy. Approximately 170,000 TW of solar radiation fall on the earth’s surface and is not ...
    • Offshore Wind Farms 

      Jarad, Nahed; Matouk, Ahmed; Ismail, Muhaimen; Almarashda, Mohamed; Vikraman, Vipul (2016-11)
      Reliance on non-renewable resources will cause major economic and environmental damage. Comparing with onshore wind farms, offshore winds tend to flow at higher speeds than onshore winds, and thus it allows turbines to ...
    • Oil and Water Separation Technique: An Application of Ultrasonic Vibration Technology 

      Abu Zant, Mohammad; El Sabba, Omar; Shawahneh, Ayman; Shabban, Osama (2016-11)
      Currently there are multiple techniques that are used to separate and purify oil water, these two techniques are quite able to reach high product purities making the a viable component of a burgeoning refinery plant however ...
    • Oil Removal From Produced Water Using Natural Materials 

      Gulistan, Abdul Sami (2014-06)
      The oil and gas industry has had to deal with a massive amount of waste water as a bi-product of the exploration of oil and gas. This waste water referred to as produced water (PW) and the amount of PW increases with the ...
    • Oman's Labour Force: An Analysis of Gender in Management. 

      Kemp, Linzi; Madsen, Susan (Emerald, 2014-11)
      Purpose - The purpose of this paper is to investigate the state of affairs in the Sultanate of Oman for the presence (or absence) of women in senior and managerial roles in private companies. The study also investigates ...
    • Omani Teachers' Attitude Toward Classroom Research 

      Al Farsi, Basim Ahmed (2006-06)
      Although there has been a lot of research done to investigate teachers' attitudes toward classroom research, there has been little research, if any, in the Gulf area, and especially in Oman. In fact, classroom research is ...
    • On 1-absorbing primary ideals of commutative rings 

      Badawi, Ayman; Celikel, Ece Yetkin (World Scientific, 2019-04-30)
      Let R be a commutative ring with nonzero identity. In this paper, we introduce the concept of 1-absorbing primary ideals in commutative rings. A proper ideal I of R is called a 1-absorbing primary ideal of R if whenever ...
    • On Efficient Channel Modeling for Video Transmission over Cognitive Radio Networks 

      Hassan, Mohamed; Abusara, Ayah Mahmoud; Shehabeldin, Menatalla Diaaeldin; Ismail, Mahmoud H. (Springer, 2016)
      This paper investigates the problem of video transmission over cognitive radio networks with the objective of maintaining continuous video playback while gracefully degrading the quality of the reconstructed video sequences, ...
    • On Morpho-Syntactic Levantisms in Maltese 

      Wilmsen, David; Al-Sayyed, Amany (Institut de recherches et d’études sur les mondes arabes et musulmans (IREMAM), 2019)
      Maltese is usually classified as a North African Arabic variety. Yet some researchers have remarked “some curious similarities with the Eastern dialects”. Investigations of these tend to concentrate upon the phonology and ...
    • On n-semiprimary ideals and n-pseudo valuation domains 

      Anderson, David F.; Badawi, Ayman (Taylor and Francis, 2020-08-14)
    • On phi-Dedekind rings and phi-Krull rings 

      Badawi, Ayman; Anderson, David F. (University of Houston, 2005)
      The purpose of this paper is to introduce two new classes of rings that are closely related to the classes of Dedekind domains and Krull domains. Let H = {R | R is a commutative ring with 1 and Nil(R) is a divided prime ...
    • On phi-Mori rings 

      Badawi, Ayman; Lucas, Thomas G. (University of Houston, 2006)
      A commutative ring R is said to be a phi-ring if its nilradical Nil(R) is both prime and comparable with each principal ideal. The name is derived from the natural map phi from the total quotient ring T(R) to R localized ...
    • On Some Applications of the Maximum Principles to a Variety of Elliptic and Parabolic Problems 

      Samuel, Sajan K. (2019-07)
      One of the most important and useful tools used in the study of partial differential equations is the maximum principle. This principle is a natural extension to higher dimensions of an elementary fact of calculus: any ...
    • On some bounds for frequencies of membranes and plates. 

      Ajeeb, Farah Hussein (2020-05)
      The problem of optimizing a domain dependent functional, while keeping a domain’s measure (its volume, perimeter, etc.) fixed, is called an isoperimetric problem. The isoperimetric inequalities have a long history in ...
    • On Studying the Effectiveness of Extended Finite State Machine Based Test Selection Criteria 

      Jadoon, Noshad Khan (2015-07)
      Automatic test derivation from formal specifications offers a rigorous discipline to functional conformance testing. In various application domains, such as communication protocols and other reactive systems, the specification ...