Research Units: Recent submissions

Now showing items 41-60 of 4787

    • Investigating the individual interests of undergraduate students in STEM disciplines 

      Ammar, Mohammad; Siby, Nitha; Khalili, Sara; Al-Thani, Alshayma N.; Sellami, Abdellatif; ... more authors ( Frontiers Media SA , 2024 , Article)
      Despite massive investments in the education sector to empower youth in Qatar, a vital concern remains to retain students in science, technology, engineering, and mathematics (STEM) disciplines at the undergraduate level. ...

    • Recycling of polymer-polymer composites 

      Bhadra, J.; Al-Thani, N.; Abdulkareem, A. ( Elsevier , 2017 , Book chapter)
      Polymers are inexpensive, lightweight, and durable materials derived from the petroleum industry that are easily molded into a variety of commodities that are used in a wide range of applications. Consequently, polymer ...

    • n-InAs based photo-thermo-electrochemical cells for conversion of solar to electrical energy 

      Ahmad, Zubair; Karimov, Khasan S.; Touati, Farid; Ajmal, M. Salman; Ali, Taimoor; ... more authors ( Elsevier , 2016 , Article)
      This paper presents the photo-thermo-electrochemical (PEC) response of various combinations of the n-type indium arsenide (n-InAs) photo-electrode with different counter electrodes, i.e., Ag, Al, Cu, Pb, Zn and ITO. The ...

    • The Effect of Temperature on Inorganic Electron Transport Materials in HTM-Free Carbon-based PSCs 

      Raza, Ehsan; Bhadra, Jolly; Ahmad, Zubair; Al-Thani, Noora ( Institute of Electrical and Electronics Engineers Inc. , 2024 , Conference Paper)
      Carbon electrode-based perovskite solar cells (c-PSCs) have attracted significant attention due to their cost-effectiveness and simplified structure, particularly when devoid of a hole transport material. However, the ...

    • Influence of polyolefin modified by Y2O3 as protective coatings against carbon steel corrosion into 3.5% NaCl media 

      Mallick, Shoaib; Bhadra, Jolly; Shakoor, R. A.; Nawaz, Muddasir; Al-Qahtani, Noora Hamad S.; ... more authors ( Springer , 2023 , Article)
      In this research work, we have studied the impact of Yttrium nanoparticles loaded with corrosion inhibitors dodecylamine (DOC) incorporated in polyolefin for the corrosion protection of steel. The surface analysis of pure ...

    • Cost estimation of synthesis and utilization of nano-adsorbents on the laboratory and industrial scales: A detailed review 

      GadelHak, Yasser; El-Azazy, Marwa; Shibl, Mohamed F.; Mahmoud, Rehab K. ( Elsevier , 2023 , Article Review)
      The recent regulations pertaining to the circular economy have unlocked new prospects for researchers. In contrast to the unsustainable models associated with the linear economy, integration of concepts of circular economy ...

    • Role of pedagogical approaches in fostering innovation among K-12 students in STEM education 

      Ammar, Mohammad; Al-Thani, Noora J.; Ahmad, Zubair ( Elsevier , 2024 , Article Review)
      The intricate challenges of the modern world demand students to be equipped with advanced skills and knowledge to thrive in an increasingly competitive global landscape. Science, technology, engineering, and mathematics ...

    • Engineering the structural, optical and photoelectrochemical properties of BaTiO3-CoFe2O4 nanocomposite for photoelectrochemical water splitting 

      Parangusan, Hemalatha; Bhadra, Jolly; Karuppasamy, K.; Maiyalagan, T.; Ahmad, Zubair; ... more authors ( Elsevier , 2023 , Article)
      Water splitting in the presence of semiconductor photocatalyst under sunlight illumination is one of the potential methods to produce clean hydrogen fuel. Herein, a BaTiO3-CoFe2O4 composite photocatalyst was fabricated ...

    • Mechanical and corrosion characteristics of TiC reinforced Ni-P based nanocomposite coatings 

      Farhan, Mohammad; Fayyaz, Osama; Qamar, M. Ghuffran; Shakoor, R.A.; Bhadra, Jolly; ... more authors ( Elsevier , 2023 , Article)
      The requirement for effective corrosion protection and better mechanical properties in various industries employing metal components has led to the growth of nickel (Ni)-based metallic coatings. The electroless-synthesized ...

    • Photo-reduced route of polyaniline nanofiber synthesis with embedded silver nanoparticles 

      Bhadra, J.; Al-Thani, N.J.; Karmakar, S.; Madi, N.K. ( Elsevier , 2019 , Article)
      This work presents a method on the preparation and performance of four silver (Ag) concentrations in polyaniline (PANI) and polyvinyl alcohol (PVA) nanocomposite blend (PNPAg). The synthesis of Ag nanoparticles is first ...

    • Spectroscopy characterizations of nanoscale polymer-based coatings 

      Parangusan, Hemalatha; Bhadra, Jolly; Ponnamma, Deepalekshmi; Karuppasamy, K.; Al-Thani, Noora ( Elsevier , 2023 , Book chapter)
      Nanoscale polymer-based coatings have become center of importance in present day's materials research. Because of their unique properties, such as less weight, ductility, and ease of manufacture, polymer-based films are ...

    • Nanotechnology in decontamination 

      Bhadra, Jolly; Abdulkareem, Asma; Al-Thani, Noora ( Elsevier , 2018 , Book chapter)
      Currently, accessibility of clean water is one of the biggest challenges faced by international society. The emerging field of nanotechnology and its applications has great potential for providing sustainable solutions to ...

    • Pit initiation mechanism of modified martensitic 13Cr stainless steel exposed to CO2 saturated acidic environments at elevated temperatures induced by Ti(C,N) inclusions 

      Martinez, Alan; Narayanan, Deeparekha; Case, Raymundo; Castaneda, Homero; Radwan, Ahmed Bahgat; ... more authors ( Elsevier , 2024 , Article)
      The influence of temperature (25, 75, and 150 °C) on the passivation behavior of Modified Martensitic 13Cr Stainless Steel (M13Cr) in CO2 saturated acidic salt brine environments was investigated. The material was found ...

    • Capacitive type humidity sensor based on PANI decorated Cu-ZnS porous microspheres 

      Parangusan, Hemalatha; Bhadra, Jolly; Ahmad, Zubair; Mallick, Shoaib; Touati, Farid; ... more authors ( Elsevier , 2020 , Article)
      Porous microstructure materials are considered good candidates for the development of highly sensitive and fast humidity sensors. In this regard, we prepared polyaniline (PANI) decorated Cu-ZnS porous microsphere structures ...

    • Exploring of the gender variations in 4Cs skills among primary students 

      Saad, Azza; Elbashir, Abubaker; Abdou, Rana; Alkhair, Shahad; Ali, Ruba; ... more authors ( Elsevier , 2024 , Article)
      The development of 21st-century learning skills must prioritize collaborative problem-solving abilities. These include critical thinking, creativity, cooperation, and communication (4Cs) and the gender-based difference in ...

    • Potassium transport and use efficiency for sustainable fertigation in protected cropping 

      Sonali ( John Wiley & Sons , 2023 , Article)
      The increasing demand for high-quality horticultural produces in global markets has driven the growing crop production under protected cropping, which are usually more efficient in fertilizer use compared to field cultivation. ...

    • Connecting the multiple dimensions of global soil fungal diversity 

      Mikryukov, Vladimir; Dulya, Olesya; Zizka, Alexander; Bahram, Mohammad; Hagh-Doust, Niloufar; ... more authors ( American Association for the Advancement of Science , 2023 , Article)
      How the multiple facets of soil fungal diversity vary worldwide remains virtually unknown, hindering the management of this essential species-rich group. By sequencing high-resolution DNA markers in over 4000 topsoil samples ...

    • Reduced fertigation input sustains yield and physiological performance for improved economic returns and cleaner production of greenhouse eggplant 

      Md Mazadul, Islam; He, Jing; Yong, Miingtiem; Babla, Mohammad; Liang, Weiguang; ... more authors ( Elsevier , 2024 , Article)
      Greenhouse horticulture, a sustainable alternative to conventional horticulture, maximises resource use and return for vegetable production. This study evaluated the impact of varying nutrient solution electrical conductivity ...

    • The effect of type and combination of fertilizers on eukaryotic microbiome of date palm rhizosphere 

      Al-Hadidi, Sara H.; Abumaali, Dana A.; Ahmed, Talaat; Al-khis, Amer Fayad; Al-Malki, Sowaid Ali; ... more authors ( Springer Nature , 2024 , Article)
      The date palm (Phoenix dactylifera) is an important cultivated crop in arid areas. Here, we studied the effect of plant genotype and type of fertilizers on the eukaryotic community structures of the date palm rhizosphere. ...

    • Unveiling the resilience mechanism: Strigolactones as master regulators of plant responses to abiotic stresses 

      Muhammad Fasih, Khalid; Shafqat, Waqar; Khan, Rashid Iqbal; Jawaid, Muhammad Zaid; Hussain, Sajjad; ... more authors ( Elsevier , 2024 , Article)
      Strigolactones (SLs) are an emerging class of plant hormones that play important roles in plant growth, development, and response to environmental stresses. This review summarizes recent findings on the roles of SLs in ...