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Qatar Foundation Annual Research Conference Proceedings Volume 2016 Issue 1
- Conference date: 22-23 Mar 2016
- Location: Qatar National Convention Center (QNCC), Doha, Qatar
- Volume number: 2016
- Published: 21 March 2016
151 - 200 of 656 results
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Usefulness of In-Situ Synchrotron Study on Scale Formation during CO 2 Corrosion of Mild Steel: A Review
More LessDespite the availability of the detailed knowledge about the chemical, electrochemical and transport processes associated with the formation of ferrous carbonate during CO2- corrosion of mild steel, information available about the mechanism of early nucleation stages of FeCO3 (siderite) film formation was only speculative. In depth knowledge related to the early stage nucleation of siderite scale and its subsequent develo Read More
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Resource Allocation Under Footprint Constraints in Industrial Parks
Authors: Dhabia M Al-Mohannadi, Kholoud Abdulaziz, Sabla Y. Alnouri and Patrick LinkeWith growing climate change concerns, depleting natural resources and decrease in oil and gas prices, it is more vital than ever to efficiently manage natural resource allocation. Methane, the key component in natural gas and a raw material for numerous chemicals, is Qatar's more abundant resource. Natural gas can be monetized through many alternative paths. It can be sold as natural gas, either through pipeline Read More
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Improved Gas and Water Pollution Sensors Based on AlGaN/GaN HEMTs for Air and Water Treatment Systems
At the present time, serious threats are being posed to the environment due to pollutants in both the air (e.g. automotive exhaust emissions) and water (e.g. phosphates, nitrates, heavy metals). In an effort to improve these environmental hazards, automotive emissions standards and regulations on water pollutants are becoming more and more strict each year. One of the major limitations in meeting these regulations Read More
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Facile Synthesized Mo 2 C Electrocatalyst Supported on Mesoporous Carbon for Hydrogen Generations
More LessThe surge in the field of renewable energy aiming to develop clean energy technology is continuing to rise. Quest for a H2-based economy derived from non-fossil resources remains at the forefront of future fuels. During the past few decades there has been intense research on the utilization of electrical energy to produce H2 in an energy efficient and environmentally benign way. Electrocatalytic hydrogen generation via water e Read More
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Microbial Desalination Cell: An Integrated Approach for Wastewater Treatment and Desalination Systems for Sustainable Water Desalination and Wastewater Treatment
Authors: Suraj Sevda, Ibrahim M Abu Reesh and Zhen HeThe availability of drinking water from the current available sources is decreasing due to the high demand and population increase. Seawater is a potential source for drinking water but the current desalination technology is energy intensive, therefore energy efficient desalination technology is desired. In the past decade microbial fuel cells (MFC) were emerged for simultaneous wastewater treatment and bioelectricity generatio Read More
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Toxicity of Chlorine to Five Marine Species from Various Trophic Levels of Qatari Waters
Authors: Suhur Saeed, Nandita Deb, Sarah Bacha and Christopher WarrenBackground Chlorine is extensively used as a powerful oxidizing agent in the countries surrounding the Arabian Gulf for water treatments and biofouling control. The usage has been increasing significantly as demand for water grows considerably both in industry and domestic use. This is due to the fact that it is a well-tested technology, has had a history of long-term worldwide industrial use and is of acceptable cost. Sodi Read More
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Lubrication in Desert Environments: Oil-Soluble Organo-Silver Molecules Designed for In-Situ Deposition of Metallic Silver at High Temperatures
The quest for improved engine performance and reduced emissions drives the design of increasingly sophisticated lubrication technologies. Lubricating oils and greases are engineered to function over a broad range of temperatures and loading conditions. Modern engines operate at higher temperatures, speeds and pressures than previous engines, and therefore require lubricants capable of handling harsher conditi Read More
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Research in Irrigation Canal Lining: An Experience from Sudan
Authors: Tarig El Gamri Ibrahim and Amir Bakheit SaeedThe amount of water below 1000 m3 per capita per annum is considered as the water poverty zone. With business as usual scenario it is estimated that by the year 2025 half the world's people will live in countries with high water stress. Based on Global averages irrigation water demands accounts for about 70% of all water uses. Meanwhile water use efficiencies of irrigated projects are generally very low particularly those Read More
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Solar Thermochemical CO 2 Utilization via Ceria Based Redox Cycle
According to the recent studies, it is expected that the global energy requirement will increase from 14 TW to 30 TW by the year 2050. Currently, fossil fuels are the major energy source utilized for the fulfillment of the energy requirement. Due to the excessive utilization of fossil fuels, the concentration of greenhouse gases in the atmosphere is increasing day by day and hence there is a pressing need to develop technolog Read More
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Reactive Absorption of CO 2 Using Ethylaminoethanol Promoted Aqueous Potassium Carbonate Solvent
Atmospheric concentration of CO2, which is considered as one of the major greenhouse gases (GHGs), has increased up to 398 ppmv as of 2015. CO2 concentration in atmosphere was 280 ppmv in pre-industrial era, and due to the continuous discharge, it is expected to increase up to 550 ppmv by 2050. Many of the major industrial sources of CO2 emissions are natural gas fired power plants, synthesis gas used in integrate Read More
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Mid-Infrared Dual Frequency Comb Spectroscopy for Time-Resolved Methane Detection
We performed dual frequency comb spectroscopy for time-resolved methane detection in real time, which is of demanding interest for the natural gas industry, environmental science, atmospheric monitoring and geoscience research. Broadband MIR frequency combs provide high brightness and frequency precision for many spectroscopic applications. To increase the detection sensitivity, a multipass cell or a high finesse cavit Read More
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Electrochemical Analyses of Sodium based Mixed Pyrophosphate Cathodes for Rechargeable Sodium Ion Batteries
Authors: Arsalan Ahmad Raja, Rana Abdul Shakoor and Ramazan KahramanLithium ion batteries (LIB) are widely applied to energy storage systems, like electric vehicles, ships. While limited reserves of lithium and cost of lithium enforced to explore new materials. Hence, Low cost and abundance of sodium has made Sodium ion batteries (SIBs) an attractive alternative for energy storage. Li ion replacement with Na ion will not require change of design in present LIBs, except change of cathod Read More
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An Investigation into Hydrophobic Membrane Fouling in Desalination Using Membrane Distillation Technology
More LessDemand for freshwater supplies is continuously increasing globally to the extent where some parts of the world became highly water stressed. In particular, the Arabian Gulf states rely heavily on seawater desalination for their freshwater supply which is met using commercial seawater desalination technologies like thermal and reverse osmosis (RO) desalination processes. However, these technologies require considera Read More
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Theoretical and Experimental Investigations on Passive Thermal Management of Solar Photovoltaic Systems using PCM-Metallic Cellular Absorbers
Authors: Abdelhakim Mohamed Hassabou, Torsten Klemm, Amir Abdallah and Olaf AndersenEnvironmental conditions such as irradiance, temperature, humidity and dust accumulation have impact on PV performance and reliability. In this paper, we will focus on the effect of temperature and how to mitigate this effect by using passive cooling approach. Qatar is rich with solar irradiance favored for photovoltaic; however, the high temperature (a module temperature of 50°C was measured during summer mon Read More
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Calibration & Temperature Controlled Setup for Air Quality Sensors
Authors: Ali Ijaz, Mohieddine Amor Benammar, Farid Touati and Abdullah KadriIndoor air pollution is a major issue affecting public health. Due to hot climate, humidity and lack of natural green spaces, life is mostly confined indoors in many countries of the MENA region. Vulnerable population, including young children and senior citizens who spend most of their time indoors, are at risk because of the effects of indoor air quality (IAQ) on their health. An indoor air quality monitoring system is a need of Read More
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Novel Graphene-Zinc Iron Oxide Composite to Enhance Ultrafiltration Membrane Performance for Water Treatment and Desalination
The main target of membrane technologies such as the Ultrafiltration (UF), Nanofiltration (NF) and Reverse osmosis (RO) is to produce better filtration and separation of organic and inorganic substance from water as well as for longer life of the membrane. The phase inversion method is a well-known method to fabricate UF, NF and RO membranes for different application. The UF membrane is widely used in separation of Read More
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Determining the Outdoor Air Ventilation with Carbon Dioxide (CO2) as a Tracer Gas
Authors: Ali Ijaz, Mohieddine Amor Benammar, Farid Touati and Abdullah KadriInsufficient ventilation can lead to occupant complaints of discomfort and reduced productivity as human and building generated pollutants build up. Some combinations of these elevated pollutants may have short or long-term detrimental health effects. Carbon Dioxide (CO2) is very rarely a pollutant of direct health concern itself. Rather a tracer gas, because building occupants exhale CO2 and is used as a tracer gas that is a Read More
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Enhancing Energy and Water Use Efficiency in District Cooling Plants, An Innovative Approach for Sustainability in Hot Arid Regions
More LessWith around 60–80% of electricity used for air conditioning, and around 99% of potable water production being supplied by desalination plants, sustaining life in Qatar, as well as GCC and hot arid countries around the world, is uniquely energy intensive. As District Cooling Plants (DCPs) have a potential to reduce energy consumption and CO2 emissions, Qatar and GCC are continuously shifting paradigm towards adoption of DC Read More
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Engineering of High Performance Solar Cells for Harsh Desert Environment Applications
Two major environmental factors affect drastically the performance of photovoltaic (PV) panels in the Gulf region, namely the dust accumulation (soiling) and the temperature-induced voltage decrease leading to a power loss. During the last years, intensive R&D activity has been conducted both by the industry and academia to address these major issues. However, recent results obtained in laboratory show that the power lo Read More
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The Impacts of Anthropogenic and Climate Change Forcings on Water Resources Demands and Availability in Jordan in the Near Future
More LessAbstract The present paper evaluates the composite risk of anthropogenic and climate change on the future water status in Jordan during the period 2030–2050. The projected water status in the country is evaluated based on the more likely population growth and climate change scenarios. The most likely figure for the population of Jordan, excluding refugees from neighboring countries, in 2040 would be ∼15 milli Read More
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Bio-Facades; An Innovative Design Solution Towards Sustainable Architecture in Hot Arid Zones
Authors: Fodil Fadli, Payam Bahrami, Irina Susorova, Meysam Tabibzadeh, Sara Zaina and El-Shaimaa El-EkhteyarThe United Nations forecasts that 70% of the World's projected population of nine billion people will be urbanized by the year 2050, a 51% increase from seven billion people urbanized as of 2010. The enormity of this total figure of 2.8 billion people moving into cities over the next 40 years is can be more clearly appreciated when converted into an annual rate of 70 million people per year, or a daily rate of nearly 200,000 people. Read More
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Life Cycle Assessment of Tall Buildings in Qatar, A focus on Construction Materials Use and Techniques
Authors: Fodil Fadli, Tommy Dacanay, Cristopher Moen, James Guest and Payam BahramiBuildings represent one of the most significant sources of negative impacts to the natural ecosystems on which Qatar's inhabitants health and environmental quality depend. The market has identified Qatar as one of the busiest construction areas in the world (Ibrahim 2011), While rapid economic development, population growth, and construction boom are positive indicators of growth, they may also present issues relat Read More
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Development of a Life Cycle Assessment Tool for the Analysis of Food Production Systems within the Energy, Water and Food Nexus
Authors: Tareq Al-Ansari and Anna KorreAs the demand for services and products continues to increase in light of rapid population growth, it is vital to ensure the sustainability of the natural resources. Critical to this growth is the question of energy, water and food security. The systems representing these three resources are intrinsically interdependent where impact on any one of them will have a simultaneous impact in the remaining two. As such, there is a Read More
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Carbon Dioxide Enhanced Oil Recovery and Storage: Experimental Investigation to Maximize Energy Resources while Reducing Carbon Footprint in Qatar
Authors: Ali Al-Menhali and Samuel KrevorQatar is the biggest exporter of liquefied natural gas, LNG, in the world and is a main oil-producing member of The Organization of Petroleum Exporting Countries, OPEC. A fossil fuel-based industry emerged around the ports of Ras Laffan and Mesaieed, Qatar's industrial cities, perusing industrial diversity and maximising the huge fossil fuel reserves that serve as the primary feedstock for the industrial sector. LNG, crude Read More
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Dynamic Tariff Development for Effective Demand Side Management (DSM) in the Presence of Increased Penetration of Photovoltaics (PV)
I. Introduction The trend towards high penetration of renewable energy sources (RES) in the energy mix and particularly grid-connected photovoltaic (PV) systems in the low voltage (LV) network, offers the benefits of green decentralized generation, at the cost of the development of energy management tools to alleviate potential problems. More specifically, the fact that for most consumption profiles the PV energy p Read More
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Investigation Into the Effects of Non-Linear Loading of Domestic Power Network on Home Appliances
Authors: Ajad Hossain, Jassim Zaman, Mahmood Saeed, Atif Iqbal and Syed RahmanNon-Linear loads such as Compact Fluorescent lamps (CFLs), Light Emitting diodes (LEDs),Solid state voltage regulators, and variable speed electric drives are increasingly being added tothe domestic, residential and industrial power network. These light sources and other house-hold appliances using power electronic converters are termed as non-linear loads and they introduce distortion in the power network by generating har Read More
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Investigating the Effect of High Pressures and Temperatures on Corrosion Inhibition for Water-Based Muds
Authors: Abdul Salam M. Abd, Abdulrahman Al-Hardan, Alireza Roustazadeh and Mahmood AmaniCorrosion is defined as gradual degradation of metal caused by a chemical or electrochemical reaction with its environment. In oil and gas sector, components can corrode at any stage in the life of a field starting from drilling through to abandonment. Recent estimations showed that corrosion costs the oil industry in US yearly around $170 billion. In general, 50% of the operating expenditures in the drilling sector worldwide are f Read More
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Experimental Investigation of Permeability and Fluid Loss Properties of Water Based Mud Under High Pressure-High Temperature Conditions
Authors: Ahmad Amra, Mahmood Amani, Rommel Yrac, Dawod Hjeij, Ahmed Abdelrauf and Jana MahfouzDrilling in deeper formations and in high pressure and high temperature (HPHT) environments is a new frontier for the oil industry. Fifty years ago, no one would have imagined drilling in more than 10,000 feet of water depth like we do today. However, more issues need to be researched, tested, and studied in order to maintain a good drilling efficiency as deeper depths are drilled. One of these issues is the great effect tha Read More
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Investigating Recycling Practices in Qatar's Hotel Industry – A Study Focusing on Food Waste Measurement and Reduction
More LessThe year of 2015 is set to be a milestone for sustainability as governments are increasingly called upon to adopt the UN Post-2015 Development Agenda. Tourism has the potential to contribute directly and indirectly to the Sustainable Development Goals. Particularly, Tourism is seen to be able to play a key role in adopting and implementing sustainable use and management of natural resources, through environment-friendly pr Read More
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Influence of Sinusoidal Drive Speed Modulation on Rotor with Continuous Stator Contact
Authors: Abdullah Alzibdeh, Mohamed Y. Al-Qaradawi and Balakumar BalachandranTorsional vibrations experienced by drill strings can be detrimental to drilling operations. With a goal of understanding torsional vibrations experienced by drill strings and determining means to attenuate undesired vibrations, the authors have studied the effect of adding a sinusoidal modulation to a constant rotation speed of a drill string. A combination of modeling, analysis, and experiments is used to explore the infl Read More
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Azolla as a Feedstock for Bio-Refinery: Cultivation, Conversion and Application
Azolla is one of the world's fastest growing aquatic macrophytes, with a doubling time of only 2-5 days (Taghi-Ganji et al., 2005). It can be found on the surface of wetlands, ditches, ponds and rivers, native to the tropics, subtropics, and warm temperate regions of Africa, Asia, and the Americas (Costa et al., 2009) (Figure. 1). It has been intensively studied during the last few years for its potential uses as a green manure in rice fi Read More
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Advanced Multiphase CFD Modelling to Understand Impact of Undersea Oil Spill
Authors: Krishnaswamy Nandakumar, Abhijit Rao and Kalliat T. ValsarajThe growing energy demand across the globe has resulted in an increase in the deep water oil exploration activities which in turn has increased the risk of occurrence of associated accidental oil releases. Oil and Gas offshore businesses are important to Qatar's economy. Further, the country is heavily dependent on its marine water resources for fulfilling its potable water needs through the desalination process. So, it is imperati Read More
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Tremendous Change in Economy of Qatar Through Economics‘s Tools
More LessAs about Qatar well known country among Gulf countries, depends on a single commodity of resources or we can say rentire state which is totally depends on natural resources as petrochemicals and gas. In the classical views of economics always use the diminishing law of return in production, which shows if production factor one or two are used in production, this will increase production but in decreasing rate. Whic Read More
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Enhanced Energy Extraction from a Solar Panel
Authors: Shahbaz Tabish, Atif Iqbal, Imtiaz Ashraf and Khaliqur RahmanDue the movement of the sun throughout the day, the insolation level incident on the fixed panel surface varies largely. The maximum level of insolation occurs only around noon. This leads to the panel to be under-utilised. To maximise the utilisation of the panel during the day, mechanical solar tracking is used. This method not only increases the utilisation of the, but increases the power being extracted from the panel. Sol Read More
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Isolation and Identification of Potentially Pathogenic Vibrio Species from Qatari Coastal Seawaters
The genus Vibrio accounts for a major group of marine and estuarine bacteria capable of causing diseases in various aquatic organisms including fishes, corals, shellfish's and shrimps. Infections with these organisms have profound environmental and economic consequences. In the present study, 52 isolates of Vibrio species were isolated from the water samples collected from 14 sites surrounding Qatar during the winter se Read More
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Performance Analysis of Multiphase High Power Open End Drives Fed from Dual Matrix Converter
Authors: Khaliqur Rahman, Atif Iqbal, Nasir Al-Emadi and Rashid Al-AmmariIn this paper an open ended seven phase stator winding drive is considered for analysis that is to be fed from matrix converter controlled by space vector pulse width modulation scheme. Open-end winding variable speed drives with dual matrix converter supply have been extensively investigated for various applications in the past, based on a three-phase machine configuration. This topology is relatively simple for pra Read More
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Modeling Development of a Combined Methane Fixed Bed Reactor Reformer
The growing concern of many countries globally about the greenhouse gas emissions have emphasized interest towards dry reforming of methane (DRM). For an oil and gas based economy such as the state of Qatar, CO2 emission is a big challenge, as it has rendered Qatar as the highest CO2 emitting country per capita in the world. The potential of DRM process for integration in the existing infrastructure of Qatar is a key aspe Read More
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Analysis of Sand Bacteriophages Genome in Qatar
Authors: Umm-Kulthum Ismail Umlai, Annette Shoba Vincent and Valentin IlyinAbstract Objective: In this era of increasing antibiotic resistance (WHO)[1], we are running out of time as common bacterial infections are progressively rejecting drugs that would be standard for treatment. It is due to these reasons that research regarding bacteriophages, viruses that infect bacteria has seen a sudden revival. The Science Education Alliance- Phage Hunters Advancing Genomics and Evolutionary Science Read More
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Chemical Characterization and Source Identification of Beached Oil from Two Areas Along the North-Western Coast of Qatar
Authors: Nasser Alkaabi, Mohammad Alghouti, Nabil Zouari, Theis Solling, Steffen Bach and Jan H. ChristensenOver the years there have been several reports of oil spills affecting particularly the northern coast of Qatar. In most cases, the source of oil spills is not identified. The spilled oils are very resistant to degradation and can affect the coastal ecosystem over many years. Even today, after 24 years, some of the oil that was spilled during the 1991 Gulf War can be found in sand, close to the Al Zubahra UNESCO site. The Maersk Oil Res Read More
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Remarkable Thermal Stability of Nano-Crystalline Al-Mg-Li Alloys through the Addition of 1%Sr
Authors: Sara Iyad Ahmad and Khaled YoussefNanocrystalline metals -with grain sizes less than 100 nm- have proven to attain exceptional mechanical properties such as strengths that exceed those of coarse-grained and alloyed metals with grain size greater than 1 μm. As a result, such materials are to be acknowledged as the new class of high-performance engineering materials and to be implemented in various structural applications. The main reason behind the ultrahi Read More
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Diatoms & Dinoflagellates Associated with Seagrasses, Algae and Mangrove
Authors: Mohanad Mushtaha, Yousef Ashraf Nasr and Abdullrahman Al-MuftahMarine environments sustain a variety of living organisms starting from microorganisms up to large macro-organisms. This support comes with the diversity of marine habitats that are created naturally to provide certain conditions for each single organism. However, Mangrove areas are one of many important places that are considered to be highly productive and could be suitable for planktonic life. Mangroves can be defined a Read More
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Synthesis and Properties of Nanocrystalline BiTe-Base Thermoelectric Materials for Energy Applications
More LessThermoelectric (TE) is the science associated with converting the thermal energy into electricity based on the Seebeck effect. The attractive features of thermoelectric devices are their long life, low maintenance, highly reliable and they do not produce emissions harmful to the environment. Thermoelectric generators are used to provide electrical power in medical, military, and space applications where their de Read More
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Improving Water and Nutrient Use Efficiency for Crop Production in Dry Lands via Soil Amendments and Remote Sensing Techniques
More LessThe soils of the Arabian Peninsula in general and GCC countries in specific are dominantly sandy (low nutrient and water holding capacity, high infiltration rate). These soils need high inputs for crop production. To be cost-effective in agriculture production these soils need careful consideration to enhance water and nutrient use efficiency and increase crop production. A number of organic and inorganic amendme Read More
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Textile-Reinforced Mortar (TRM) System as a Strengthening Technique on Reinforced Concrete Beams
Authors: Muhammad Shekaib Afzal, Usama Ebead and Kshitij ShresthaThere is considerable investment in construction industry in Qatar for civil infrastructures and taking into account the severe environmental conditions, they would entail for proper maintenance, repair and strengthening for safe, continuous, uninterrupted, and efficient functionality. Reinforced concrete (RC) structural members, which constitute majority of construction works in Qatar, can be easily deteriorated by th Read More
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The Effect of Chilled Water Supply Temperature on the Energy Efficiency of the Chiller System
Authors: Abdulwahab Alyousef and Abdulwahab BukshaishaA steady-state model for a centralized cooling system is developed and utilized to evaluate its energy efficiency. The numerical model resolves the energy equations for a cooling tower and a centralized water-cooled chiller simultaneously. It requires inputs that are readily available. The user-inputs are the ambient conditions, the cooling tower air flow rate, the condenser water flow rate, the evaporator water flow rate, the su Read More
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Comparative Analysis of Antifungal Activity of Total Phenolics from Different Date Palm Cultivars Against Five Phyto Pathogenic Fungi
Authors: Resna Nishad and Talaat AhmedIntroduction: Pathogen attacks impose natural selection on plants to evolve complex arrays of defensive strategies. Among the diverse defensive mechanisms evolved by plants to withstand pathogen attack, the ability to synthesize an arsenal of low-molecular weight volatile and non-volatile chemicals including phenolics helps them to prepare a robust defense response against pathogen entry. Systemic induction and accumu Read More
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Sampling of Qatari Sand Microbes: Serious about B.cereus
Authors: Umm-Kulthum Umlai, Annette Shoba Vincent and Vincent IlyinObjective: A shortage of studies regarding the ecology of Qatar led to the sampling sand to determine the composition of microbes within the sand (below a certain size). This sampling began with a sand sample obtained from Al Rayyan, Doha Qatar. The sample was purified, and sequenced after isolating the DNA. A comprehensive analysis of the local Qatar sand sample shows a range of various microbes (which are smaller Read More
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Experimental Investigation on Gasoline and Diesel Fuels Surrogates Designed Via Computation and Property Integration Methods
Authors: Nimir Elbashir, Saad Intikhab, Sawitree Kalakul, Hanif Ahmed Choudhury and Rafiqul GaniAutomotive researchers attempts to simulate combustion of fuels in order to improve engine performance.[1] Conventional fuels are difficult to represent in these simulations due to their complex composition. Surrogates that meet American Society of Testing and Materials (ASTM) standards are a good alternative to conventional fuels. This study aims at design and analyzing surrogate mixtures for both gasoline and diesel. Su Read More
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Study and Comparison of PFC Rectifiers: Quasi Z Source, Traditional Flyback
Authors: Sinan Asaad Sabeeh and Fahad AlhuwaishelThis study focuses on comparing the Traditional Flyback PFC (F-PFC), and the Quasi Z-Source PFC (QZS PFC) on range of (36–720W) and input Voltage of (130, 200, 230V) with an output Vdc of 36 Volts while operating in Continuous Conduction Mode. The study has confirmed that F-QZS PFC has better THD%, P.F, and lower output current and voltage ripple relative with the output power. In addition, the stress on each main el Read More
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Growth of Hybrid Perovskites (HP) Light Harvesting Layer and TiO 2 Electron Transport Material for Solar Cells Application
Hybrid Perovskites (HP) recently emerged as alternative light harvesting layer to fabricate high efficiency thin film solar cells. The perovskite based solar cells took advantage of the experience gained in the field of the dye sensitizes solar cells and the extremely thin absorber (ETA) solar cells. It is worth mentioning that the structure of the perovskite solar cell is very similar to a dye sensitized solar cell and ETA solar cell. These ce Read More
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