Qatar University Institutional Repository: المرسلات الحديثة
السجلات المعروضة 801 -- 820 من 28761
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Antibacterial Polyvinylchloride Pre-Treated by Barrier Plasma
( Nova Science Publishers, Inc. , 2010 , Book chapter)A multistep physicochemical approach making use of plasma technology combined with wet chemistry has fueled considerable interest in delivery of surface-active antiadherence materials. In the first step of the approach, ... -
Surface modification of poly(Lactic acid) film via cold plasma assisted grafting of fumaric and ascorbic acid
( MDPI , 2021 , Article)Plant-based materials have found their application in the packaging with a yearly growing production rate. These naturally biodegradable polymers are obtained from renewable and sustainable natural resources with reduced ... -
Investigation of selected anti-bacterially modified Micro/Nano-polymers using cold plasma
( Apple Academic Press , 2023 , Book chapter)Medical-grade polymers, i.e., polyvinylchloride and low-density polyethylene (LDPE), were modified by antibacterial compounds through a multistep physicochemical approach. The polymer initial surface activation was performed ... -
Cold Plasma-An Efficient Tool for Nanotechnological Modification of Polyester-Based Polymers
( Apple Academic Press , 2024 , Book chapter)Polyester surface was pretreated by cold plasma to improve its adhesive properties. The changes in the chemical structure of the pretreated polymer were analyzed by attenuated total reflectance Fourier-transform infrared ... -
Reverse osmosis silica fouling control with reactive micromixing
( Elsevier , 2024 , Article)Silica fouling is a major challenge in groundwater reverse osmosis (RO) desalination. Dissolved silica, upon concentration during RO, forms a difficult-to-clean glassy foulant layer on membranes, limiting recoveries from ... -
Facile fabrication of high thickness hydrophilic polymer brushes via Surface-Initiated Microliter-Scale copper mediated PhotoATRP toward antifouling surfaces
( Elsevier , 2024 , Article)The recent development of sustainable chemistry motivates scientists to develop economically favourable, highly efficient, and environmentally friendly polymerization techniques. This contribution demonstrates a facile ... -
New combination of simple additive and entropy weighting criteria for the selection of best substitution box
( IOS Press BV , 2021 , Article)Substitution boxes (S-boxes) are among the most widely recognized and fundamental component of most modern block ciphers. This is on the grounds that they can give a cipher fortifying properties to oppose known and possible ... -
Smart City Transportation System in Developing Countries: The Case of Lusail City, Qatar
( Springer Science and Business Media Deutschland GmbH , 2021 , Conference Paper)Qatar, a developing country in the Middle East, is investing in developing its first smart city. Lusail City is a world-class urban development city that has been newly introduced in Qatar to serve the country's national ... -
Classification of citrus plant diseases using deep transfer learning
( Tech Science Press , 2021 , Article)In recent years, the field of deep learning has played an important role towards automatic detection and classification of diseases in vegetables and fruits. This in turn has helped in improving the quality and production ... -
A Transparent and Privacy-Preserving Healthcare Platform with Novel Smart Contract for Smart Cities
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)A smart city ensures quality maintenance in diverse sectors, namely citizen safety, security, healthcare, transportation, and energy. Besides, data privacy and security have become an uprising concern for Electronic Health ... -
A fast convergent homotopy perturbation method for solving selective harmonics elimination PWM problem in multi level inverter
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)Pulse width modulation (PWM) control for power converters have been vastly investigated and used in many industrial application. For medium voltage and high power applications, low switching frequency PWM techniques are ... -
Cost-effective design of iot-based smart household distribution system
( MDPI , 2021 , Article)The Internet of Things (IoT) plays an indispensable role in present-day household electricity management. Nevertheless, practical development of cost-effective intelligent condition monitoring, protection, and control ... -
OCCUPANT PERCEPTION OF THERMAL COMFORT IN SLEEP ENVIRONMENTS IN QATAR
( Sultan Qaboos University , 2021 , Article)A thermal comfort field survey in sleep environments in winter and spring seasons in Qatar collected 833 sets of objective and subjective thermal and sleep quality responses before going to bed and after getting up. The ... -
Prediction of the eigenperiods of MDOF shear buildings using neural networks
( National Technical University of Athens , 2021 , Conference Paper)The study of multi-degree of freedom (MDOF) systems is essential to evaluate and understand the seismic response of buildings. Through a MDOF idealization, the dynamic properties of the building such as its natural frequencies ... -
The Role of Heritage Tourism and its Implications for Urban Regeneration in Old Doha, Qatar
( ZEMCH Network , 2021 , Conference Paper)Doha, the capital of Qatar is the largest city, with over 80% of the nation's population residing in Doha. It is also the administrative and economic centre of the country with a population of more than 2,900,000 persons ... -
Performance Evaluation of a 500 kWp Rooftop Grid-Interactive SPV System at Integral University, Lucknow: A Feasible Study Under Adverse Weather Condition
( Springer Science and Business Media Deutschland GmbH , 2021 , Book chapter)Currently, power generation using solar PV source is in advance stage in India. Government policies and subsidies attract citizens of India to install solar PV system at their commercial and domestic places. Some of the ... -
Voltage Lift Switched Inductor Double Leg Converter with Extended Duty Ratio for DC Microgrid Application
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)In a DC microgrid, while integrating the low voltage sources such as Fuel cells and photovoltaics, an efficient DC-DC converter is crucially needed. Contributing to a high voltage whilst being operated on a low duty ratio ... -
Network-coded wireless powered cellular networks: Lifetime and throughput analysis
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference Paper)In this paper, we study a wireless powered cellular network (WPCN) supported with network coding capability. In particular, we consider a network consisting of k cellular users (CUs) served by a hybrid access point (HAP) ... -
Model Predictive Control Based Demand Response Scheme for Peak Demand Reduction in a Smart Campus Integrated Microgrid
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)This paper presents an effective solution to manage the power flows exchanges in a campus integrated microgrid for peak reduction/shaving purposes. The campus integrated microgrid is composed of photovoltaic parking shades, ... -
Design of optimal deep learning based human activity recognition on sensor enabled internet of things environment
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)In recent times, Human Activity Recognition (HAR) has become a major challenge to overcome among computer vision applications in day-To-day lives. HAR is mainly envisioned to be utilized in coordination with other technologies ...
