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Now showing items 2293-2312 of 53134

    • Altering shale permeability by cold shock 

      Aruah, B.; Sakhaee-Pour, A.; Hatzignatio,u D.G.; Sadooni, F.N.; Al-Kuwari, H.A. ( Elsevier , 2024 , Article)
      The matrix permeability of shale is on the order of nanodarcy (nD), and hydrocarbon recovery from it is economical only after hydraulic fracturing. Another fracturing technique, which is often overlooked, is cryogenic ...

    • Alternative Means to Resolve Administrative Contractual Disputes in the State of Qatar 

      Nouh, Mouhannad; نوح, مهند ( Hamad bin Khalifa University Press (HBKU Press) , 2017 , Conference Paper)
      Administrative agreements, namely public procurement agreements, are considered as the most important types of agreements in the countries adopting the Latin legal tradition. Indeed, under these agreements, the public ...

    • Alternative method of diffraction-enhanced imaging 

      Hasna, M.O.; Chapman, D. ( Elsevier B.V. , 2007 , Article)
      Diffraction-enhanced imaging (DEI) is a radiographic technique that derives contrast from an object's X-ray absorption, refraction gradient and small-angle scatter properties (extinction). The DEI imaging system prepares ...

    • 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 ...

    • Alternative sources of n-3 long-chain polyunsaturated fatty acids in marine microalgae 

      Martins, Dulce A.; Custódio, Luísa; Barreira, Luísa; Pereira, Hugo; Ben-Hamadou, Radhouan; ... more authors ( MDPI , 2013 , Article Review)
      The main source of n-3 long-chain polyunsaturated fatty acids (LC-PUFA) in human nutrition is currently seafood, especially oily fish. Nonetheless, due to cultural or individual preferences, convenience, geographic location, ...

    • Alternatives to amine-based capture & new technologies 

      Benyahia, Farid ( Hamad bin Khalifa University Press (HBKU Press) , 2012 , Report)
      Large improvements in separations technology will require novel materials with enhanced properties and performance. The fundamental interlinks for success in merging synthesis and process incorporation are the structure, ...

    • Alternatives to root canal treatment: Tooth autotransplantation 

      Duggal, Monty; Nazzal, Hani ( Wiley online library , 2022 , Article)
      Although endodontic treatment is successful in most instances, some severely compromised teeth cannot be maintained in the long term. In children and adolescents, dental trauma can sometimes result in such severe damage ...

    • Altmetrics for country-level research assessment 

      Alhoori, Hamed; Furuta, Richard; Tabet, Myrna; Samaka, Mohammed; Fox, Edward A. ( Springer Verlag , 2014 , Article)
      Changes are occurring in scholarly communication and the geography of science.Policymakersand research funding agencies are looking for ways to measure the comprehensive impact of research and benefit from the research ...

    • Aluminium doped ZnO nanostructures for efficient photodegradation of indigo carmine and azo carmine G in solar irradiation 

      Bhapkar, Abhishek R.; Geetha, Mithra; Jaspal, Dipika; Gheisari, Khalil; Laad, Meena; ... more authors ( Springer Nature , 2023 , Article)
      Aluminium doped zinc oxide (AZO) nanomaterials (AlxZn1-xO) with x fraction varying as 0.02 and 0.04 were synthesized using the auto-combustion method using glycine as a fuel. The synthesized catalysts were characterized ...

    • Aluminium Nitrate As External Absorbent In The Microdetermination Of Carbon And Hydrogen In Organofluorine Compounds 

      Hassan, H. N. A. [حسن نجيب احمد حسن]; Hassouna, Mohamed E. M. ( Qatar University , 1994 , Article)
      Silica gel loaded with saturated A1(NO3)3- 10. H2O solution proved to be an efficient absorbent for the elimination of the interference of fluorine in the microdetermination of carbon and hydrogen in organofluorine compounds. ...

    • Aluminum nitride (AlN) reinforced electrodeposited Ni-B nanocomposite coatings 

      Radwan, A. Bahgat; Shakoor, R.A. ( Elsevier Ltd , 2020 , Article)
      Ni–B nanocomposite coatings containing various concentration aluminum nitride (AlN) nanoparticles (NPs) were developed through a scalable and conventional electrodeposition process. The influence of addition of AlN ...

    • Alumni Reunion 2012 

      ( جامعة قطر , 2012 , Video)

    • Alveolar bone changes following bi-maxillary vertical molars' movements using clear aligners 

      Al-Warafi, Leena Ali; Al-Worafi, Naseem Ali; Al-Aroomi, Maged Ali; Alhashimi, Najah; Alsomairi, Majedh Abdo Ali; ... more authors ( BioMed Central Ltd , 2023 , Article)
      Objective This study aimed to assess the alveolar bone changes following maxillary and mandibular molars’ intrusion and extrusion movements using Clear Aligners using Cone-Beam Computed Tomography (CBCT). Materials and ...

    • Always negotiate, sometimes cooperate: an agent-based model 

      Mozahem N.A. ( Emerald Group Publishing Ltd. , 2019 , Article)
      Purpose: The purpose of this paper is to use agent-based modeling to simulate the negotiation and cooperation between agents working on tasks in an organization and to study the effects that gender differences might have ...

    • Ambient and Heat-Cured Geopolymer Composites: Mix Design Optimization and Life Cycle Assessment 

      Rabie, Mohamed; Irshidat, Mohammad R.; Al-Nuaimi, Nasser ( Multidisciplinary Digital Publishing Institute (MDPI) , 2022 , Article)
      The feasibility of producing sustainable cement-free composites and its environmental impact were investigated in this research. Experimental parametric evaluation was carried out in this regard to explore the optimum mix ...

    • Ambient Intelligence - Software and Applications: 6th International Symposium on Ambient Intelligence (ISAmI 2015) 

      Mohamed A.; Novais P.; Pereira A.; González G.V.; Fernández-Caballero A. ( Springer Verlag , 2015 , Conference Paper)
      [No abstract available]

    • Ambient Monitoring WSNs with Harvesting-aware Power Management 

      Crescini D.; Galli A.; Alghisi D.; Touati F. ( IMEKO-International Measurement Federation Secretariat , 2019 , Conference Paper)
      Capillary wireless sensor networks dedicated to air quality monitoring have provided essential information on hazardous air condition, generating early warnings to prevent danger situation for human health. The main challenge ...

    • Ambivalent Sexism in the State of Qatar: Gender Roles and Patriarchal Attitudes 

      Lari, Noora ( Brill , 2023 , Article)
      This article examines public attitudes toward ambivalent sexism in the State of Qatar, which has taken considerable initiatives to prioritize women’s empowerment strategies and promote equality between men and women. It ...

    • Ambivalent Sexism in the State of Qatar: Gender Roles and Patriarchal Attitudes 

      Lari, Noora ( International Sociological Association , 2021 , Conference Paper)
      The State of Qatar has undertaken considerable initiatives that prioritize strategies for female empowerment and promote gender equality. This paper investigates whether the effects of these equality initiatives are reflected ...

    • The Amebas 

      Aziz, Hassan; Gockel-Blessing, Elizabeth A. ( W.B. Saunders , 2013 , Book chapter)
      The second edition is designed to cover the topic of parasitology comprehensively. It provides information on how to perform the clinical procedures needed to collect specimens and obtain diagnostically useful parasitic ...