Earth Science Cluster: المرسلات الحديثة

السجلات المعروضة 61 -- 80 من 212

    • Seismic detection and characterization of a man-made karst analog - A feasibility study 

      Gritto, Roland; Elnaiem, Ali Elobaid; Mohamed, Fateh Alrahman; Sadooni, Fadhil ( Society of Exploration Geophysicists , 2021 , Article)
      At the site of a water drainage shaft on the campus of Qatar University that serves as a man-made karst analog, two seismic imaging techniques were adapted to use resonant scattered waves recorded during active-source ...

    • Characterizing fracture toughness using machine learning 

      Alipour, M.; Esatyana, E.; Sakhaee-Pour, A.; Sadooni, F. N.; Al-Kuwari, H. A. ( Elsevier B.V. , 2021 , Article)
      The existing models for fracture toughness characterization based on nanoindentations that account for the fracture length are limited to simple (ideal) geometries that are absent in shales. The present study proposes two ...

    • Comprehensive pore size characterization of Midra shale 

      Alessa, S.; Sakhaee-Pour, A.; Sadooni, F. N.; Al-Kuwari, H. A. ( Elsevier B.V. , 2021 , Article)
      Although the Middle East's carbonate reservoirs were the first and most studied rocks in the world, Middle Eastern shale reservoirs are still poorly understood compared with other unconventional formations in the US. We ...

    • Empirical Relation for Capillary Pressure in Shale 

      Alipour, Mehdi K.; Kasha, Ahmed; Sakhaee-Pour, A.; Sadooni, Fadhil N.; Al-Kuwari, Hamad Al Saad ( Society of Petroleum Engineers (SPE) , 2022 , Article)
      Brooks and Corey (1964) and van Genuchten (1980) proposed the two most widely used relations for approximating capillary pressure. Petroleum engineers apply both, but they were originally proposed to understand the moisture ...

    • Microporosity evolution and destruction in the Jurassic Arab D reservoir, Qatar 

      Sadooni, F.N.; Al-Kuwari, H. Al Saad; Sakhaee-Pour, A.; Mattar, W. S. ( Institute for Ionics , 2023 , Article)
      Core samples were collected from three wells, one onshore and two offshore, from Qatar’s Upper Jurassic Arab D reservoir. The samples were subjected to multiproxy petrographic and chemical analyses to identify their micro- ...

    • Remote sensing of desertification and study of temporal variability of aeolian deposits in parts of the Arabian Desert for sustainable development in an arid environment 

      Rajendran, Sankaran; Al Kuwari, Hamad Al Saad; Sadooni, Fadhil N.; Nasir, Sobhi; Govil, Himanshu; ... more authors ( Academic Press Inc. , 2023 , Article)
      Aeolian deposit in part of the Arabian Desert is mapped using ASTER data to understand desertification, land encroachment, and degradation, and to assess agricultural development in arid regions. In this study, the ...

    • Variability of blue carbon storage in arid evaporitic environment of two coastal Sabkhas or mudflats 

      Al Disi, Zulfa Ali; Naja, Khaled; Rajendran, Sankaran; Elsayed, Hadil; Strakhov, Ivan; ... more authors ( Nature Research , 2023 , Article)
      Coastal Sabkhas are mudflats found in arid coastal regions that are located within the supratidal zone when high rates of evaporation lead to high salinity. While evaporitic minerals often accumulate underneath the surface, ...

    • Microbially influenced formation of anhydrite at low temperature 

      Al Disi, Zulfa Ali; Sadooni, Fadhil; Al-Kuwari, Hamad Al Saad; Bontognali, Tomaso R.R. ( Elsevier B.V. , 2023 , Article)
      Calcium sulfate minerals are abundant in nature – on Earth and on Mars – and important in several fields of material sciences. With respect to gypsum and bassanite, anhydrite represents the anhydrous crystalline phase in ...

    • Evaluation of processed sludge as a sustainable and efficient soil conditioner and organic fertiliser for Qatari soil 

      Ali, Majeed; Ahmed, Talaat; Al-Ghouti, Mohammad A. ( Inderscience Publishers , 2022 , Article)
      Qatar is implementing the use of treated sludge as a sustainable resource in the green infrastructure. The study employed an experimental research design where five samples (two kilograms each) of pelletised sludge of both ...

    • Polymer-metal oxide composite nanofibers 

      Elkahlout, Z.I.; AlAhzm, A.M.; Alejli, M.O.; AlMaadeed, F.Z.; Ponnamma, D.; ... more authors ( Elsevier , 2021 , Book chapter)
      Extensive studies have been conducted on different kinds of polymers, their composites, and multifunctionalities, depending on their structural features. Metal oxides and their polymer nanocomposites offer technological ...

    • Preparation and properties of novel activated carbon doped with aluminum oxide and silver for water treatment 

      Rashad, Al-Gaashani; Almasri, Dema; Shomar, Basem; Kochkodan, Viktor ( Elsevier , 2020 , Article)
      Novel activated carbon (AC) composite materials, namely AC doped with aluminum oxide (Al2O3) and AC doped with Al2O3 and silver (Ag) nanoparticles, have been prepared via a one-step thermal decomposition method. The developed ...

    • Genomic Characterization and Annotation of Two Novel Bacteriophages Isolated from a Wastewater Treatment Plant in Qatar 

      Ramadoss, Ramya; Al-Marzooqi, Fajer; Shomar, Basem; Ilyin, Valentin Alekseevich; Vincent, Annette Shoba ( American Society for Microbiology , 2022 , Article)
      We report the genome sequences of Escherichia phage C600M2 (length, 88,162 bp; G1C content, 38.98%) and Escherichia phage CL1 (length, 87,820 bp; G1C content, 41.32%), which were isolated from a wastewater treatment plant ...

    • Mapping of trace elements in topsoil of arid areas and assessment of ecological and human health risks in Qatar 

      Basem, Shomar; Sankaran, Rajendran; Solano, Joaquim Rovira ( Elsevier , 2023 , Article)
      Soil is the incubator of human activities. Mapping of soil contaminants needs to be constantly updated. It is fragile in arid regions, especially if it accompanies dramatic and successive industrial and urban activities ...

    • Synthesis of nanostructured novel ion-imprinted polymer for selective removal of Cu2+ and Sr2+ ions from reverse osmosis concentrated brine 

      Khan, Mariam; Al- Ghouti, Mohammad A.; Khraisheh, Majeda; Shomar, Basem; Hijji, Yousef; ... more authors ( Elsevier , 2023 , Article)
      This study aims to prepare an ion-imprinted polymer (IIP) using copper sulfate as a template and potassium persulfate as an initiator to selectively adsorb copper ions (Cu2+) from aqueous solutions and in an attempt to ...

    • Globally invariant metabolism but density-diversity mismatch in springtails 

      Potapov, Anton M.; Guerra, Carlos A.; van den Hoogen, Johan; Babenko, Anatoly; Bellini, Bruno C.; ... more authors ( Nature Research , 2023 , Article)
      Soil life supports the functioning and biodiversity of terrestrial ecosystems. Springtails (Collembola) are among the most abundant soil arthropods regulating soil fertility and flow of energy through above- and belowground ...

    • Litho-structural mapping and structural evolution of the Bocaranga pluton, northwest Adamawa-Yadé domain, Central African Republic 

      Rodrigue Martial, Topien; Moloto-A-Kenguemba, Gaetan; Traore, Mamadou; Rajendran, Sankaran; Kouassi, Brice Roland ( Elsevier , 2023 , Article)
      The Bocaranga pluton, in the northern domain of the Central African Orogenic Belt (CAOB) in the Central African Republic (CAR), is located in the Adamawa-Yadé domain, near the Mbéré Shear Zone (MBSZ). This study provides ...

    • Chlorophyll-a concentrations in the Arabian Gulf waters of arid region: A case study from the northern coast of Qatar 

      Sankaran, Rajendran; Al-Naimi, Noora; Al Khayat, Jassim A.; Sorino, Caesar Flonasca; Sadooni, Fadhil N.; ... more authors ( Elsevier , 2022 , Article)
      Remote sensing of spectrally active Chlorophyll-a (Chl-a) in the gulf water of an arid region is important to understand the spatial and temporal variations of phytoplankton and biomass in the water. This study characterizes ...

    • Aquaculture sediments amended with biochar improved soil health and plant growth in a degraded soil 

      Sajid, Mehmood; Ahmed, Waqas; Mahmood, Mohsin; Rizwan, Muhammad Shahid; Asghar, Rana Muhammad Ammar; ... more authors ( Elsevier , 2023 , Article)
      Sustainable and safe management of aquaculture sediments is of great concern. Biochar (BC) and fishpond sediments (FPS) are rich in organic carbon and nutrients and thus can be used as soil amendments; however, it is not ...

    • Photodegradation and Its Effect on Plant Litter Decomposition in Terrestrial Ecosystems: A Systematic Review 

      Hussain, Mohammed Bakr; Al-Hadidi, Sara H.; Erfanian, Mohammad Bagher; Yahia, Mohamed Nejib Daly; Mullungal, Muhammed Nayeem; ... more authors ( MDPI , 2023 , Article Review)
      Photodegradation is an important mechanism that affects carbon and nutrient cycling; a significant amount of data has been reported previously. The present review includes the effect of a wider spectrum of solar radiation ...

    • Making sense of multivariate community responses in global change experiments 

      Avolio, Meghan L.; Komatsu, Kimberly J.; Koerner, Sally E.; Grman, Emily; Isbell, Forest; ... more authors (2022 , Article)
      Ecological communities are being impacted by global change worldwide. Experiments are a powerful tool to understand how global change will impact communities by comparing control and treatment replicates. Communities consist ...