Browsing University Publications by Title
Now showing items 1765-1784 of 4356
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Seasonal Fluctuations Of Certain Species Of Nocturnal Coleoptera As Indicated By A Light Trap At Quena
( Qatar University , 1985 , Article)1) One light trap of Robinson type fitted with a mercury vapour bulb was operated for two consecutive years. Eighty - three species were identified and counted. The most abundant species was Tachys fumigatus of which over ... -
Seasonal Variations of Acoustic Properties in Ropme Sea Area
( Qatar University , 1993 , Article)Hydrographic data collected in the periods from 1961 to 1988 are used to investigate sound speed distribution in the Regional Organization for Protection of Marine Environment (ROPME) sea area in the Gulf, during four ... -
Secondary vs. Tertiary oil recovery from a two-dimensional porous media by microemulsion flooding
( Qatar University , 1989 , Article)The objective of this research was to study the application of microemulsion flooding in a visual, two-dimensional sandpack for the purpose of investigating the efficiency of oil displacement during secondary and tertiary ... -
Secure eHealth: A Secure eHealth System to Detect COVID Using Image Steganography
( Qatar University Press , 2020 , Poster)COVID is a pandemic which has spread to all parts of the world. Detection of COVID infection is crucial to prevent the spread further. Contactless health care systems are essential which can be implemented with Cloud ... -
Sediment Distribution Pattern in the Al-Shoaiba Lagoon, Red Sea Coast of Saudi Arabia
( Qatar University , 2003 , Article)The Al-Shoaiba coastal lagoon located on the eastern side of the Red Sea is covered mostly with calcareous sand and muddy sand. Wind derived quartz is the most abundant detrital component in the surficial sediments of the ... -
Sedimentological And Paleo-Environmental Studies On The Eocene Limestones In The Northern Plateau Of Bahariya Oasis, Western Desert, Egypt
( Qatar University , 1984 , Article)Detailed investigation of the three Eocene formations in the Northern Plateau revealed remarkable differences in their biogenic and lithologic characters. Eleven different microfacies associations have been recognized. ... -
Sedimentological development of the upper pliocene- pleistocene sediments in the areas of el salamony and el sawamha sharq, North East Sohag , Egypt.
( Qatar University , 1995 , Article)The Upper Pliocene- pleistocene Nile sediments cropping out in the areas around El Salamony and El Sawamha Sharq constitute two terraces including five facies ; flood plain , talus and lacustrine facies in the upper terrace ... -
Segmenting Liver Volume for Surgical Analysis
( Qatar University Press , 2021 , Poster)Introduction: Almost two million people worldwide die annually due to hepatic-related diseases. Half of these diseases are attributed to cirrhosis and the other half are related to hepatitis and hepatocellular carcinoma ... -
Seismic reflection coefficient parameter-theoretical and Practical approach
( Qatar University , 1994 , Article)In this study, the effect of porosity and pore filler on the reflection coefficient parameter (R), are well deduced and some mathematical expressions were developed. This leads to the establishment of new expression of (R) ... -
Seismic Resolvable Frequency Band For The Pre-Miocene Oil Targets Ras Budran, Gulf Of Suez, Egypt
( Qatar University , 1988 , Article)Seismic attenuation problem in Ras Budran area, Gulf of Suez was tackled by defining the resolvable frequency band. This band can transmit through the Miocene evaporitic cyclic section and hit pre-Miocene oil targets. This ... -
Seismic Risk Evaluation Based on Maximum Likelihood Technique Applied For the Red Sea Region
( Qatar University , 1993 , Article)An analysis of the seismic risk is carried out for the Red Sea region for the recorded earthquakes in the area between 1. January 1913 and 31 December 1982. The maximum likelihood method was applied to determine the hazard ... -
Selection Of Optimized Fuzzy Rules For Process Control Systems: Using Genetic Algorithms
( Qatar University , 1996 , Article)In this paper modeling, selection and optimization of fuzzy rules for multivariable feedback process control and decision making systems are developed and discussed. A general model for multivariable fuzzy rules is derived ... -
Selectivity Coefficient Of Wire Basket Traps For Tilapia Nilotica
( Qatar University , 1984 , Article)Most methods of estimating growth and mortality rates require samples representative of the population with respect to size of one or more age groups. There is no fishing gear that exhibits equal selectivity towards fish ... -
Self-compacting Backfills using Fly Ash and Dredged Marine Sediments for Public Work Applications
( Qatar University Press , 2023 , Conference Paper)Sediment accumulation at the bottom of ports disrupts maritime activities and disturbs the physicochemical balance of water bodies. In France, the maintenance of the 6500-kilometer long coastline would require the extraction ... -
Self-healing behavior of epoxy-based double-layer nanocomposite coatings modified with Zirconia nanoparticles
( Qatar University Press , 2021 , Poster)This work reports the self-healing behavior of epoxy reinforced ZrO2 double-layer nanocomposite coatings to alleviate the deleterious effects of corrosion in the oil and gas industry. The corrosion inhibitor (imidazole) ... -
Self-healing performance of smart coatings modified with different corrosion inhibitors.
( Qatar University Press , 2020 , Poster)Corrosion results in considerable materials and equipment failure. According to one survey, about 1/4 to 1/3 of the total interruption in industries is due to detrimental effects of corrosion. It is, therefore, important ... -
Self-Healing Performance of Smart Polymeric Coatings Modified with Tung Oil and Linalyl Acetate
( Qatar University Press , 2021 , Poster)This work focuses on the synthesis and characterization of polymeric smart self-healing coatings. A comparison of structural, thermal, and self-healing properties of two different polymeric coatings comprising distinct ... -
A Self-Organizing Multisensor Fusion Classification Algorithm
( Qatar University , 1996 , Article)A self-organizing multisensor fusion algorithm to classify the inputs (data or images) into classes (targets, backgrounds) is presented. The algorithm forms clusters and is trained without supervision. The clustering is ... -
Sem Studies On Facilitated Microbial Growth On Pac In A Biological Reactor
( Qatar University , 1996 , Article)A process known as powdered activated carbon (PAC) treatment was applied to facilitate additional bacterial growth in the treatment of industrial wastewater. Refinery wastewater was fed into a pilot plant reactor at a rate ... -
Senso-Neuroendocrine Cells Within The Cerebral Ganglion Of The Earthworm Aporrectodea Caliginosa
( Qatar University , 1992 , Article)Ciliated neurones of probable endocrine function are present inside and outside the cerebral ganglion of the earthworm Aporrectodea caliginosa. Cell fibers contain clusters ofsynaptoid vesicles in regions adjacent to the ...