تصفح Academic حسب العنوان
السجلات المعروضة 4186 -- 4205 من 25460
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Comparative Genomic and Transcriptomic Analyses of Mycobacterium kansasii Subtypes Provide New Insights Into Their Pathogenicity and Taxonomy
( Frontiers Media , 2020 , Article)Mycobacterium kansasii is an important opportunistic pathogen of humans and has a close phylogenetic relationship with Mycobacterium tuberculosis. Seven subtypes (I–VII) have been identified using molecular biology ... -
Comparative Growth Performance and Feed Utilization of Four Local Strains of Nile Tilapia (Oreochromis niloticus L.) Collected From Different Locations in Egypt
( Qatar University , 2003 , Article)Brood stocks of Nile tilapia (Oreochromis niloticus L.) were collected from Lakes ofNasser (Aswan), Manzalah, Maryut and Abbassa fishponds. Fingerlings ofFI of each strain was fed diet containing 27% CP for 90 days. The ... -
Comparative Histopathological Studies On The Effects Of Ionizing X-Ray Irradiation On Normal Liver And Hepatoma
( Qatar University , 1984 , Article)Normal mice exposed to X-rays showed distinct external symptoms and died mostly on the 13th or 14th day after irradiation. Pathological symptoms were more exaggerated in mice diseased with hepatoma and subjected to the ... -
Comparative Investigation of the Physicochemical Properties of Chars Produced by Hydrothermal Carbonization, Pyrolysis, and Microwave-Induced Pyrolysis of Food Waste
( MDPI , 2022 , Article)This work presents a comparative study of the physicochemical properties of chars derived by three thermochemical pathways, namely: hydrothermal carbonization, HTC (at 180, 200 and 220 °C), pyrolysis, PY, (at 500, 600 and ... -
Comparative literature in Arabic: History and major issues
( Qatar University , 1994 , Article)It is well known that Comparative Literature in Arabic can not look back at a long history; but still this fact should not be allowed to stand as a vindication of the paucity of writings that deal with the background and ... -
Comparative Outer Membrane Protein Analysis of High and Low-Invasive Strains of Cronobacter malonaticus
( Frontiers Media , 2017 , Article)are an important group of foodborne pathogens that has been linked to life-threatening infections in both infants and adults. The major infections associated with species are neonatal meningitis, necrotizing enterocolitis, ... -
Comparative Performance of DFIG and PMSG Wind Turbines during Transient State in Weak and Strong Grid Conditions Considering Series Dynamic Braking Resistor
( MDPI , 2022 , Article)The recently stipulated grid codes require wind generators to re-initiate normal power production after grid voltage sag. This paper presents a comparative performance of two commonly employed variable speed wind turbines ... -
Comparative Phylogenetic and Residue Analysis of Hepatitis C Virus E1 Protein from the Middle East and North Africa Region
( Kowsar (Research Center for Gastroenterology and Liver Diseases, Tehran, Iran) , 2019 , Article)Hepatitis C virus (HCV) is a major public health problem in the Middle East and North Africa (MENA) region with an estimate of over 15 million chronically infected patients. However, molecular characterization of circulating ... -
Comparative scorecard assessment of urban water pricing policies-The case of Jordan and Iran
( MDPI AG , 2019 , Article)Urban water pricing is becoming increasingly important due to the rapid rate of urbanization and the expansion of water reclamation and reuse. The mounting evidence of failures of current pricing schemes makes analyzing ... -
Comparative Serological Study for the Prevalence of Anti-MERS Coronavirus Antibodies in High- and Low-Risk Groups in Qatar
( Hindawi Publishing Corporation , 2019 , Article)Infection with Middle East respiratory syndrome coronavirus (MERS-CoV) could be asymptomatic or cause mild influenza-like illness. Therefore, the prevalence of MERS-CoV infections in the general population could be ... -
Comparative simulation for physical layer key generation methods
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)The paper cogitates about a comparative simulation for various distillation, reconciliation, and privacy amplification techniques that are used to generate secure symmetric physical layer keys. Elementary wireless model ... -
Comparative skull analysis suggests species-specific captivity-related malformation in lions (Panthera leo)
( Public Library of Science , 2014 , Article)Lion (Panthera leo) populations have dramatically decreased worldwide with a surviving population estimated at 32,000 across the African savannah. Lions have been kept in captivity for centuries and, although they reproduce ... -
Comparative studies of the oil from silybum marianum cultivated in Egypt using glc
( Qatar University , 1994 , Article)Quantitative comparative study of the oil fraction constituents in the fruits of Silybum marianum successfully cultivated in new reclaimed land with those of the two wild types viz., purple flower and white flower bearing ... -
Comparative study between adsorption and membrane technologies for the removal of mercury
( Elsevier B.V. , 2021 , Article)Mercury is one of the most detrimental by-products of industrial activities, such as mining and fossil fuel combustion. What differentiates this contaminant from other pollutants is its bioaccumulation and rapid distribution ... -
Comparative study between the rotor flux oriented control and non-linear backstepping control of a five-phase induction motor drive - an experimental validation
( Institution of Engineering and Technology , 2016 , Article)Multiphase variable speed electric drives are employed in applications where the reduction in the total power per phase and the highest level of overall system reliability is required. Most of the literature on five-phase ... -
Comparative Study of 11 Honey Samples Sold in Riyadh Saudi Arabia
( Qatar University , 2006 , Article)11 honey various samples commercially available in Saudi Arabia, were subjected to chemical, toxicological and bacteriological tests. The samples were checked for As and CN, presence of pollens, and for bacteria contamination. ... -
Comparative study of adaptive sliding mode and resonant controllers in fault tolerant five-phase permanent magnet synchronous motor drive
( Springer London , 2018 , Article)This paper proposes a new fault tolerant control strategy for a five-phase permanent magnet synchronous motor (PMSM) drive under single-phase open circuit condition. The loss of one phase causes problems such as disturbing ... -
Comparative study of Bacillus thuringiensis Cry1Ia and Cry1Aa delta-endotoxins : activation process and toxicity against Prays oleae
( Elsevier Inc. , 2010 , Article)Cry1Ia and Cry1Aa proteins exhibited toxicities against Prays oleae with LC(50) of 189 and 116 ng/cm(2), respectively. The ability to process Cry1Ia11 protoxin by trypsin, chymotrypsin and P. oleae larvae proteases was ... -
Comparative study of classical and fuzzy -regulator in five phase synchronous machine control with open phase
( IOS Press , 2018 , Article)Speed control of synchronous machines using Field Oriented Control (FOC) classically uses Proportional Integral (PI) or Integral Proportional (IP) regulators that allow to achieve satisfactory goals on the dynamics of speed ... -
A Comparative Study of High-gain Cascaded DC-DC Converter Topologies
( IEEE , 2022 , Conference Paper)DC-DC boost converters are utilized to step-up the voltage level to match a certain application requirement. Although Conventional boost converter is simple and easy to be implemented, it has a low boosting capability and ...
