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السجلات المعروضة 1149 -- 1168 من 48609
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A Portable Active Photovoltaic Solar Energy System in Treating Wastewaters by Electrocoagulation
( ASTM International , 2021 , Article)This study presents the effects of adding some provisions to a portable photovoltaic (PV) solar energy system to obtain both DC and ac sources. An efficient ac high-speed fan was powered from this system to cool the PV ... -
A portable electromagnetic head imaging system using metamaterial loaded compact directional 3d antenna
( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)A non-invasive, low-powered, and portable electromagnetic (EM) head imaging system is presented using metamaterial (MTM) loaded compact directional 3D antenna. The antenna consists of two slotted dipole elements with ... -
A Portrait of Low-Income Migrants in Contemporary Qatar
( Springer Singapore , 2019 , Book chapter)Though transnational labour migration in the Gulf States has increasingly been of scholarly interest, that scholarship has to date relied largely on qualitative ethnographic methodologies or small non-representative sampling ... -
A potential link between oxidative stress and endothelial-to-mesenchymal transition in systemic sclerosis
( Frontiers Media S.A. , 2018 , Article Review)Systemic sclerosis (SSc), an autoimmune disease that is associated with a number of genetic and environmental risk factors, is characterized by progressive fibrosis and microvasculature damage in the skin, lungs, heart, ... -
A power control strategy for flywheel doubly-fed induction machine storage system using artificial neural network
( Elsevier Ltd , 2013 , Article)A large-capacity low-speed flywheel energy storage system (FESS) based on a doubly-fed induction machine (DFIM) consists of a wound-rotor induction machine and a back-to-back converter rated at 30-35% of the machine power ... -
A practical perspective for chromatic orthogonality for implementing in photolithography
( Nature Research , 2023 , Article)Theoretically, it is more challenging to anticipate the conversion and selectivity of a photochemical experiment compared to thermally generated reactivity. This is due to the interaction of light with a photoreactive ... -
A practical solution approach for the green vehicle routing problem
( Elsevier Ltd , 2017 , Article)Green vehicle routing (GVRP) is an active research area that is concerned with the development and analysis of distribution activities with eco-friendly vehicles. We propose a practical solution approach for the GVRP that ... -
A Practical Universal Consortium Blockchain Paradigm for Patient Data Portability on the Cloud Utilizing Delegated Identity Management
( Institute of Electrical and Electronics Engineers Inc. , 2020 , Conference Paper)This paper presents a blockchain system that exploits the base modular features of the Hyperledger Fabric framework to allow for a new, patient-centric, practical data portability paradigm. The system empowers patients by ... -
A precious-metal-free Fe-intercalated carbon nitride porous-network with enhanced activity for the oxygen reduction reaction and methanol-tolerant oxygen reduction reaction
( Royal Society of Chemistry , 2020 , Article)The economical cost of the catalyst material has remained a challenging task in traditional fuel cells (FCs) and in direct methanol fuel cells (DMFCs). However, replacement of noble metals with precious metal-free materials ... -
A precise converter for resolvers and sinusoidal encoders based on a novel ratiometric technique
( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)Resolvers and other sinusoidal encoders provide electrical signals related to the sine and cosine of the unknown angular position of their rotor shafts. Conventional tangent/cotangent converter used with these transducers ... -
A predictive control approach for fault management of computing systems
( Association for Computing Machinery , 2015 , Conference Paper)In this paper, a model-based predictive control approach for fault management in computing systems is presented. The proposed approach can incorporate existing fault diagnosis methods and fault recovery actions to facilitate ... -
A predictive model for the assessment of the temperature polarization effect in direct contact membrane distillation desalination of high salinity feed
( Elsevier B.V. , 2014 , Article)Temperature polarization is one of the major sources responsible for flux drop in membrane distillation systems due to the reduction in the driving force across the membrane. The present study offers a predictive model ... -
A preemptive bound for the Resource Constrained Project Scheduling Problem
( Springer US , 2014 , Article)The Resource Constrained Project Scheduling Problem is one of the most intensively investigated scheduling problems. It requires scheduling a set of interrelated activities, while considering precedence relationships, and ... -
A preliminary checklist of the ants (Hymenoptera: Formicidae) of Qatar
( Qatar University Press , 2020 , Poster)The State of Qatar is a small peninsula located in the northeastern part of the Arabian Peninsula. It is classified as a subtropical desert with a very extreme harsh climatic conditions in summer and mild winter. Information ... -
A Privacy Scheme for Digital Images Based on Quantum Particles
( Springer , 2019 , Article)Quantum processing inspired every field of science and technology. Quantum digital content privacy schemes usually employs photons to communicate a key. In this article, we are utilizing different states which correspond ... -
A privacy-preserving traffic monitoring scheme via vehicular crowdsourcing
( MDPI AG , 2019 , Article)The explosive number of vehicles has given rise to a series of traffic problems, such as traffic congestion, road safety, and fuel waste. Collecting vehicles’ speed information is an effective way to monitor the traffic ... -
A Probabilistic Approach for Maximizing Travel Journey WiFi Coverage Using Mobile Crowdsourced Services
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)A public transport journey planning service often yields multiple alternative journeys plans to get from a source to a destination. In addition to journey preferences, such as connecting time and walking distance, passengers ... -
A probabilistic multi-tenant model for virtual machine mapping in cloud systems
( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference Paper)A novel probabilistic multi-tenant model is developed to characterize the service performance of cloud systems. The model considers essential cloud-system characteristics including virtualization, multi-tenancy and ... -
A Probabilistic Source Location Privacy Protection Scheme in Wireless Sensor Networks
( Institute of Electrical and Electronics Engineers Inc. , 2019 , Article)With the recent developments of wireless sensor networks (WSNs), computing and communication have experienced huge advancement. Meanwhile, security has not received the same attention to go along with such developments. ... -
A problem-oriented approach to represent and manage knowledge in PBL
( Asia-Pacific Society for Computers in Education , 2015 , Conference Paper)In traditional subject-based learning knowledge is well-structured and prepared in advance by the teachers before transferring in the form of a lecture presentation. However, the knowledge learned in problem-based learning ...
