Now showing items 21-40 of 4456

    • A comparative study of Seagrasses Species in Regional Seas and QMZ 

      M.M. Abdelbary, Ekhlas; AlAshwal, Aisha ( Qatar University Press , 2021 , Poster)
      Seagrasses are flowering monocot green plants that have adapted to marine life, and remain completely immersed in seawater and are primary producers of food for numerous marine animals. Seagrasses are of worldwide distribution ...
    • A comparative study of structural and mechanical properties of Al-Cu composites prepared by vacuum and microwave sintering techniques 

      Matli P.R.; Fareeha U.; Shakoor R.A.; Mohamed A.M.A. ( Elsevier Editora Ltda , 2018 , Article)
      In this paper, the aluminum metal matrix composite reinforced with copper particulates (3, 6 and 9 vol.%) were fabricated by high energy ball milling, followed by vacuum sintering (VS) and microwave sintering techniques ...
    • A comparative study of the growth of Tetraselmis sp. in large scale fixed depth and decreasing depth raceway ponds 

      Das, Probir; Thaher, Mahmoud Ibrahim; Abdul Quadir, Mohammed; AbdulHakim, Mohd; Al-Jabri, Hareb Mohammed S. J.; ... more authors ( Elsevier Ltd , 2016 , Article)
      In this study, an alternative approach was proposed where excess seawater would be added only during inoculation (DD) rather than daily addition (FD). Growth and metabolite contents of Tetraselmis sp. weren't affected for ...
    • A Comparative Study of the Role of the Nation-State Building Process in the Middle East Crises; a Case Study of the Crisis in Bahrain, Iraq and Yemen 

      Hatef, Kamyar; Jaferi, Maryam ( Gulf Studies center - College of Arts & Sciences - Qatar University , 2021 , Conference Paper)
      Political stability has always been the most important concern of the states. Political stability is equal with lack of serious threats and challenges that can put country in danger. Due to multiple reasons like; the lack ...
    • A comparative study on long term stability of self-healing epoxy coating with different inorganic nanotubes as healing agent reservoirs 

      Vijayan, P. P.; El-Gawady, Y. Mohamed Hany; Al-Maadeed, M. Ali S.A. ( BME-PT and GTE , 2017 , Article)
      Self-healing epoxy coatings were prepared with different nanotubes as reservoirs for epoxy monomer (healing agent). The nanotubes selected for the current study were TiO2 nanotubes with two different tube diameter (TNT1 ...
    • A comparative study on the operational performance of four-leg intersections by control type 

      Arshi A.N.; Alhajyaseen W.K.M.; Nakamura H.; Zhang X. ( Elsevier Ltd , 2018 , Article)
      The selection of proper control types at intersections at the planning stage is an important concern considering the difficulty in comparing the performance of different control types. Therefore, several manuals proposed ...
    • A comparative study on the performance of hybrid solar cells containing ZnSTe QDs in hole transporting layer and photoactive layer 

      Najeeb, Mansoor Ani; Abdullah, Shahino Mah; Aziz, Fakhra; Ahmad, Zubair; Shakoor, R. A.; ... more authors ( Springer Netherlands , 2016 , Article)
      In this paper, ZnSTe quantum dots-based hybrid solar cells (HSC) with two different device architectures have been investigated. The improved performance of the poly(3-hexylthiophene) (P3HT) and [6,6]phenyl C71 butyric ...
    • A comprehensive review of electrocoagulation for water treatment: Potentials and challenges 

      Mouss, Dina T.; El-Naas, Muftah H.; Nasser, Mustafa; Al-Marri, Mohammed J. ( Academic Press , 2017 , Article Review)
      Electrocoagulation is an effective electrochemical approach for the treatment of different types of contaminated water and has received considerable attention in recent years due its high efficiency in dealing with numerous ...
    • A comprehensive review on the antiviral activities of chalcones 

      Elkhalifa, Dana; Al-Hashimi, Israa; Al Moustafa, Ala-Eddin; Khalil, Ashraf ( Taylor and Francis Ltd. , 2021 , Article)
      Some viral outbreaks have plagued the world since antiquity, including the most recent COVID-19 pandemic. The continuous spread and emergence of new viral diseases have urged the discovery of novel treatment options that ...
    • A comprehensive review on the rheological behavior of imidazolium based ionic liquids and natural deep eutectic solvents 

      Elhamarnah Y.A.; Nasser M.; Qiblawey H.; Benamor A.; Atilhan M.; ... more authors ( Elsevier B.V. , 2019 , Article Review)
      The rheological behavior of a fluid is an important property that has a distinct impact on its flow conduct, which influence viscosity dependent phenomena and applications such as pumping, mass transfer rates, and ...
    • A comprehensive review summarizing the recent biomedical applications of functionalized carbon nanofibers 

      Abdo, Ghada G.; Zagho, Moustafa M.; Al Moustafa, Ala-Eddin; Khalil, Ashraf; Elzatahry, Ahmed A. ( John Wiley and Sons Inc , 2021 , Article)
      Since the discovery and fabrication of carbon nanofibers (CNFs) over a decade ago, scientists foster to discover novel myriad potential applications for this material in both biomedicine and industry. The unique economic ...
    • A comprehensive rheological study for a flowing polymer-based drilling fluid used for wellbore strengthening 

      Magzoub M.I.; Salehi S.; Hussein I.A.; Nasser M.S. ( Society of Petroleum Engineers (SPE) , 2020 , Conference Paper)
      Loss circulation encountered in highly fractured formations, depleted reservoir, or HP/HT intervals is the root cause of many problems plaguing the oil and gas sector for many years. High pore pressure narrows the window ...
    • A concise review on Solar still with parabolic trough collector 

      Panchal, H.; Sadasivuni, Kishor Kumar; Suresh, M.; Israr, M.; Sengottain, S. ( Taylor and Francis Ltd. , 2021 , Article Review)
      The enhancement of yield of solar still (SS) is viewed as very significant due to the production of the potable water. It is also considered as uncomplicated device for desalination. There is also no need for professional ...
    • A Design-led FEWW Nexus Approach For Qatar University 

      Karanisa, Theodora; Ouammi, Ahmed; Hamdi, Helmi; Saadaoui, Imen; Fetais, Noora; ... more authors ( Qatar University Press , 2021 , Poster)
      Demographic explosion, climate change, urbanization, change of life quality, and food demand have put extra pressure on Food, Energy, Water, and Waste (FEWW) resources.A special focus has been placed on university campuses ...
    • A Domain Specific Language for Secure Outsourcing of Computation to the Cloud 

      Nassar, Mohamed; Erradi, Abdelkarim; Malluhi, Qutaibah M. ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)
      Secure outsourcing of computation has gained importance with the proliferation of cloud services. However, existing outsourcing protocol specification languages are mainly suitable for secure multi-party computation. They ...
    • A Fast Responsive Ultraviolet Sensor from mSILAR-Processed Sn-ZnO 

      Thomas, Deepu; Vijayalakshmi, K. A.; Sadasivuni, Kishor Kumar; Thomas, Ajith; Ponnamma, Deepalekshmi; ... more authors ( Springer New York LLC , 2017 , Article)
      Microwave-assisted successive ionic layer adsorption and reaction was employed to synthesize Sn-ZnO (tin-doped zinc oxide), and its sensitivity to ultraviolet radiation is compared with zinc oxide (ZnO). The sensing films ...
    • A feasibility study of utilizing hydrothermal liquefaction derived aqueous phase as nutrients for semi-continuous cultivation of Tetraselmis sp. 

      Das, Probir; AbdulQuadir, Mohammad; Thaher, Mahmoud; Khan, Shoyeb; Chaudhary, Afeefa Kiran; ... more authors ( Elsevier Ltd , 2020 , Article)
      The feasibility of substituting 50% nutrients by aqueous phase liquid (APL), derived from hydrothermal liquefaction of Tetraselmis sp. biomass, in a semi-continuous cultivation of Tetraselmis sp. was studied. Growth ...
    • A focused review on smart carriers tailored for corrosion protection: Developments, applications, and challenges 

      Habib, Sehrish; Shakoor, R.A.; Kahraman, Ramazan ( Elsevier B.V. , 2021 , Article Review)
      Steel-made infrastructures have been expanding at an incredible rate worldwide and are critical for the expansion and operation of countless industries. Steel is susceptible to corrosion failures, particularly in aggressive ...
    • A Geopolitical Economy of the World Cup: Lessons from Qatar's Hosting of FIFA's Showcase Tournament 

      Chadwik, Simon ( Gulf Studies center - College of Arts & Sciences - Qatar University , 2022 , Conference Paper)
      Qatar's hosting of the 2022 FIFA World Cup is the embodiment of a new way in which sport in the 21st century is being conceived. This challenges prior utilitarian and neoclassical notions of sport, which are evident both ...
    • A Global Declaration on Appropriate Use of Antimicrobial Agents across the Surgical Pathway 

      Sartelli, Massimo; Kluger, Yoram; Ansaloni, Luca; Carlet, Jean; Brink, Adrian; ... more authors ( Mary Ann Liebert Inc. , 2017 , Article)
      This declaration, signed by an interdisciplinary task force of 234 experts from 83 different countries with different backgrounds, highlights the threat posed by antimicrobial resistance and the need for appropriate use ...