Browsing by Title
Now showing items 23305-23324 of 49081
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Study of carbonate rocks of the khuff and Jubaila formations , saudi arabia by Thermal derivatography
( Qatar University , 1997 , Article)Thermal derivatographic analysis of the Khuff and Jubaila carbonate rocks shows that calcite and / or dolomite (of calcitic type) are the main constituent minerals. Their differential thermal and thermogravimetric behaviours ... -
A Study of Cheating Beliefs, Engagement, and Perception – The Case of Business and Engineering Students
( Springer Nature , 2019 , Article)Studies have found that academic dishonesty is widespread. Of particular interest is the case of business students since many are expected to be the leaders of tomorrow. This study examines the cheating behaviors and ... -
Study of communication behaviour in children: Affiliative and Agonistic Exchange in toddler-peer interaction
( Qatar University , 1992 , Article) -
The Study Of Compaction Using Seismic Velocity Analyses In East - Baghdad Oil Field (Mid - Iraq)
( Qatar University , 1995 , Article)The present study deals with estimation of empirical equations relating travel time (T) and transit time (T.T) with depth (Z) which are expressed in the forms : T = BZN + A, log T. T. = - s log Z + H For this aim, ... -
A study of contamination of the northern Jordan valley agricultural fields by various metal ions using regression analysis.
( Qatar University , 2000 , Article)Geochemical analysis were performed in lower subsurface soil samples of 10,20,30 and 40cm depth, collected from seven regions in the northern Jordan valley. Eighteen descriptors (variables) for each sample were used. Among ... -
Study of device instability of bottom-gate ZnO transistors with sol-gel derived channel layers
( American Institute of Physics Inc. , 2017 , Article)In this paper, the authors report the device instability of solution based ZnO thin film transistors by studying the time-evolution of electrical characteristics during electrical stressing and subsequent relaxation. A ... -
Study of diesel-biodiesel blends combustion and emission characteristics in a CI engine by adding nanoparticles of Mn (II) supramolecular complex
( Elsevier B.V. , 2020 , Article)The supramolecular complex (SC1) [Mn(EIN)4(NCS)2] was synthesized and characterized as a new nanosized emulsion additive to improve the fuel incineration and emission formation behavior of a diesel-biodiesel blends-fueled ... -
Study of ethanol decomposition mechanism over combustion synthesized bimetallic Cu-Co nanoparticles
( AIChE , 2018 , Conference Paper)[No abstract available] -
Study of ethanol decomposition mechanism over combustion synthesized bimetallic Cu-Co nanoparticles
( AIChE , 2018 , Conference Paper)[No abstract available] -
Study of ethanol dehydrogenation reaction mechanism for hydrogen production on combustion synthesized cobalt catalyst
( Elsevier Ltd , 2017 , Article)Cobalt nanoparticles synthesized via solution combustion synthesis were used to study the decomposition mechanism of ethanol for hydrogen production. Thermodynamic studies were conducted on the synthesis of cobalt nanoparticles ... -
Study of Flexible Working Arrangements in context of Covid-19 in Qatar
(2021 , Professional Masters Project)Digitalization and social networks have impacted the way people communicate, collaborate and work. Employees are starting to take greater control and autonomy over their working hours. Experts suggest that flexible work ... -
Study of In Vitro Biodegradation Behavior of Mg–2.5Zn–xES Composite
( Springer , 2020 , Conference Paper)In this study, zinc (Zn) and eggshell (ES) reinforced biodegradable magnesium alloy (Mg–2.5Zn) and environment concise (eco) composite (Mg–2.5Zn–xES) was fabricated using disintegrated melt deposition (DMD) technique. In ... -
Study of Intrapreneurship in Qatar: An Empirical Study and Structural Model
(2019 , Professional Masters Project)Intrapreneurship has provided great opportunities for organizations that have practiced it in different countries. Intrapreneurship is a process by which employees within an organization take the lead in producing new ... -
Study of Magnetic Properties and Lattice Dynamics of the Cdx Co1-x Ferrite System by MossbauerEffect
( Qatar University , 1981 , Article)The magnetic properties and lattice dynamics of the spinel ferrite system Cdx Coi-x Fe^ 04 (x = 0.0, 0.1, . . . , and 1.) were studied in the temperature range between 78 to 800°K. The results showed that the samples with ... -
Study of microbial communities and environmental parameters of seawater collected from three Tunisian fishing harbors in Kerkennah Islands: Statistical analysis of the temporal and spatial dynamics
( Elsevier Ltd , 2022 , Article)Surface seawater, collected from three fishing harbors during different seasons of the years 2015, 2016 and 2017, were assessed for physico-chemical analyses. Results showed that seawater was mainly polluted by hydrocarbons ... -
Study of microstructural and mechanical properties of al/sic/tio2 hybrid nanocomposites developed by microwave sintering
( MDPI , 2021 , Article)Aluminum hybrid metal matrix nanocomposites (Al/SiC/TiO2) were synthesized through a microwave-assisted powder metallurgy process, and their evolved microstructure and mechanical properties were investigated. The Al/SiC/TiO2 ... -
Study of mild steel sandwich structure energy absorption performance subjected to localized impulsive loading
( MDPI AG , 2020 , Article)Extensive research focus had been given to sacrificial sandwich panels to mitigate the effects of blast loads. This is due to their ability to distribute the load and absorb a significant portion of the blast energy. This ... -
Study of Nature Inspired Power-aware Wake-Up Scheduling Mechanisms in WSN
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)The Internet of Things (IoT) has the potentialities to advance the concretisation of the smart world through a wide interaction between the human society with its physical environment. This interaction is enabled by Wireless ... -
A study of nutrient dynamics in the coastal dunes of northwestern egypt.
( Qatar University , 1990 , Article)Biomass and nutrient cycling are evaluated in sites of Ammophita arenaria and Onoaisvaginalis which are among the most common species growing on the coastal dunes of the western desert of Egypt. Both species accumulate N ...