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السجلات المعروضة 4492 -- 4511 من 49155
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Catalytic evaluation of nickel nanoparticles in methane steam reforming
( Elsevier , 2016 , Article)Development of a highly efficient and coke-resistant, nickel nanoparticles (Ni.NPs) based catalyst in the steam reformation reaction of methane is reported. The catalyst was prepared by dispersing Ni-nanoparticles over ... -
Catalytic Fast Pyrolysis of Soybean Straw Biomass for Glycolaldehyde-Rich Bio-oil Production and Subsequent Extraction
( American Chemical Society , 2021 , Article)In this study, soybean straw (SS) as a promising source of glycolaldehyde-rich bio-oil production and extraction was investigated. Proximate and ultimate analysis of SS was performed to examine the feasibility and suitability ... -
Catalytic hydrothermal liquefaction of biomass into bio-oils and other value-added products – A review
( Elsevier Ltd , 2021 , Article)Hydrothermal liquefaction (HTL) is an effective method for the conversion of biomass into biofuel involving moderate temperature and high pressure. However, the yield and quality of bio-oil are not sufficient for ... -
Catalytic methane decomposition to carbon nanostructures and cox-free hydrogen: A mini-review
( MDPI AG , 2021 , Article Review)Catalytic methane decomposition (CMD) is a highly promising approach for the rational production of relatively COx-free hydrogen and carbon nanostructures, which are both important in multidisciplinary catalytic applications, ... -
Catalytic Oxidation Of Petroleum Waxy Distillates
( Qatar University , 1994 , Article)The catalytic oxidation of petroleum waxy distillate (boiling range 400 - 440°C at 760 nun Hg) using KMn04 catalyst and air was studied in a batch reactor. The effect of reaction temperature (100-160°C), air flow rate ... -
Catalytic Reduction of CO2 into Solar Fuels via Ferrite Based Thermochemical Redox Reactions
( Materials Research Society , 2017 , Conference Paper)In this study, Ni based ferrite nanomaterials were synthesized using sol-gel method for solar thermochemical splitting of CO2 using a thermogravimetric analyzer. To synthesize the ferrite materials, the corresponding metal ... -
The catalytic thermo-oxidative decomposition of glimepiride using the isoconversional method
( Springer , 2022 , Article)Applying the isoconversional method to data obtained from thermogravimetric analysis (TGA) can provide vital kinetic information. In this work, the thermal decomposition and oxidation of the antidiabetic drug glimepiride ... -
Categorization does not promote symmetry in Guinea baboons (Papio papio)
( Springer Verlag , 2016 , Article)Humans have the capacity to use stimuli interchangeably by forming equivalence classes, and this ability seems to be supported by our language system. According to Sidman and Tailby (Conditional discrimination vs. matching ... -
The Category 'D' Reconsidered
( Qatar University , 1999 , Article)This study deals with the categorial status of a set of words known as 'determiners' and the features encoded in them. We argue, following a suggestion in Chomsky, 1975, that 'Optimality' conditions on grammar require ... -
Cathepsin B Induced Cardiomyocyte Hypertrophy Requires Activation of the Na+/+ Exchanger Isoform-1
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Background: Progression of the heart to failure is primarily caused due to significant remodeling of both the extracellular matrix (ECM) and subcellular organelles, a hallmark of cardiac hypertrophy (CH). Uncontrolled ECM ... -
Cathepsin B Induced Cardiomyocyte Hypertrophy Requires Activation of The Na+/H+ Exchanger Isoform-1
(2016 , Master Thesis)Multiple studies have demonstrated that proteases, specifically cathepsin B (Cat B) and matrix metalloproteinase-9 (MMP-9) contribute to the remodeling of the extracellular matrix (ECM), a hallmark of cardiac hypertrophy ... -
Cathine and cathinone disposition kinetics and neurotransmitter profile in several organs of rats exposed to a single dose of Catha edulis (Vahl) Forssk. ex Endl. extract
( Walter de Gruyter , 2023 , Article)Catha edulis (Vahl) Forssk. ex Endl. (Khat) is a stimulant plant that contains cathine and cathinone, which its abuses induce euphoria, alertness, and motor activity. Since the toxicokinetics of these substances remain ... -
Caught basking in the winter sun: Preliminary data on winter thermoregulation in the Ethiopian hedgehog, Paraechinus aethiopicus, in Qatar
( Academic Press , 2016 , Article)Biologists focus on thermoregulation of desert mammals in terms of how they minimize heat gain, and put less effort on how they maximize heat gain during the cooler months. Heat gain may contribute to significant energy ... -
Caught off guard and beaten: The Ukraine war and food security in the Middle East
( Frontiers Media , 2023 , Article)The Ukraine war has led to a severe global food crisis due to complex supply disruptions and price increases of agricultural inputs. Countries of the Middle East have been directly affected because of their high dependence ... -
Causal relationships of moral hazard and adverse selection of Ghanaian Public-Private-Partnership (PPP) construction projects
( Emerald Group Publishing Ltd. , 2018 , Article)Purpose: The purpose of this paper was to assess the causal relationship(s) between moral hazard and adverse selection of public' private partnership (PPP) construction projects. Structural equation modelling (SEM) was ... -
Causes For Delays In Construction Projects In Kuwait
( Qatar University , 2002 , Article)The paper presents a study based on a research that analyzes and ranks the causes of delays in building and housing type projects undertaken by governmental agencies in Kuwait. The study was based on a survey with the ... -
Causes of construction change orders in Qatar: Contractors' perspective
( Inderscience Publishers , 2016 , Article)The construction industry involves complex processes which are prone to various changes and variations. However, it may be argued that the application of change orders within construction projects in the State of Qatar has ... -
Causes of Cost-Overrun in Construction Projects
(2016 , Professional Masters Project)Cost overrun in construction projects is a common issue affecting project performance. After a review of the literature, a list of 39 cost overrun attributes were gathered and presented in a survey questionnaire. The survey ... -
CAUSES OF DELAY IN CONSTRUCTION PROJECTS
(2016 , Master Thesis)The construction industry is struggling by numerous recorded incidents of delay due to improper planning and/or implementation of required construction measures. Globally, researchers have concluded that the construction ...
