Browsing Academic by Title
Now showing items 19791-19810 of 27599
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A sentence-level text adversarial attack algorithm against IIoT based smart grid
( Elsevier B.V. , 2021 , Article)With the development of data processing technologies, efficiency of information processing in the Industrial Internet of Things (IIoT) is greatly improved. In this situation solving the following security problems of the ... -
Sentiment Analysis as a Service: A Social Media Based Sentiment Analysis Framework
( Institute of Electrical and Electronics Engineers Inc. , 2017 , Conference Paper)We propose a 'Sentiment Analysis as a Service' (SAaaS) framework that abstracts sentiments from social information services, analyses and transforms into useful information. We propose a dynamic service composition mechanism ... -
Sentiment Analysis in Comments Associated to News Articles: Application to Al Jazeera Comments
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)Sentiment analysis is a very important research task that aims at understanding the general sentiment of a specific community or group of people. Sentiment analysis of Arabic content is still in its early development stages. ... -
Sentiment analysis of islamic news data using hyper-concepts
( American Scientific Publishers , 2017 , Article)Sentiment Analysis is the extraction of writers feeling from a written manuscript. It aims at predicting the sentiment of a particular text using automated means. There are two main ways to make predictions: (1) lexicon-based ... -
Sentinel-2 image transformation methods for mapping oil spill – A case study with Wakashio oil spill in the Indian Ocean, off Mauritius
( Elsevier B.V. , 2021 , Article)Although several indices have been constructed and available at the Index database (IDB) for Sentinel-2 satellite to map and study several earth resources, no indices have been developed to map oil spill. We constructed ... -
Separation and preconcentration of malathion and azamethiphos by Unloaded polyurethane foams
( Qatar University , 1994 , Article)The feasibility of using unloaded polyether type polyurethahe foams for the extraction and separation of malathion and azamethiphos in batch and column operations has been examined. The effects of pH, ionic strength, shaking ... -
SEPARATION HYPOTHESIS TESTS IN THE AGRICULTURAL HOUSEHOLD MODEL
( Oxford University Press , 2010 , Article)In an agricultural household model, farmers’ production decisions can be either separated or nonseparated from preferences. Since previous studies on agricultural household behavior and policy effects have shown that the ... -
SEPARATION OF OIL/WATER MIXTURES BY CHEMICALLY MODIFIED MELAMINE FOAMS
(06-2 , Master Thesis)Polymeric foams represent suitable porous sorbents for separating various contaminants dispersed in water. One of the most common polymeric foams is melamine (ME) foams, which are particularly suitable for removing oil ... -
Separation of Two Forms of Extracellular p-glucosidase From a Thermotolerant Aspergillus niveus
( Qatar University , 2003 , Article)Two forms of P-glucosidase ((3-D-glucoside glucohydrolase, EC 3.2.1.21) from the culture filtrate of Aspergillus niveus were separated and partially purified by gel chromatography on Sephadex G-100 column. The two forms ... -
Separation of water/oil emulsions by an electrospun copolyamide mat covered with a 2D Ti3C2Tx MXene
( MDPI AG , 2020 , Article)Purpose: Copolyamide 6,10 (coPA) electrospun mats were covered with multilayered (ML) and single-layered (SL) MXene (Ti3C2Tx) as a membrane for the separation of water/vegetable oil emulsions. Methods: Prepared membranes ... -
Sepsis Prediction in Intensive Care Unit Using Ensemble of XGboost Models
( IEEE Computer Society , 2019 , Conference Paper)Sepsis is caused by the dysregulated host response to infection and potentially is the main cause of 6 million death annually. It is a highly dynamic syndrome and therefore the early prediction of sepsis plays a key role ... -
Sequence Of Ossification In The Skeleton Of Growing Lizard Chalcides Ocellatus Forscal (Scincidae, Reptilia)
( Qatar University , 1988 , Article)The distribution of cartilaginous and ossification rudiments were described in the live-bearing lizards, Chalcides ocellatus, at birth, one-month-old, and 12-month-old. The skeletal elements investigated are: neurocranium, ... -
Sequence-Based Simulation Optimization: An Application to Container Terminals
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)This paper presents a novel method for simulation-optimization that incorporates the sequence in which the decision variables (resource levels) are optimized. The authors hypothesize that implementing such a sequence will ... -
Sequential Chemistry Toward Core?Shell Structured Metal Sulfides as Stable and Highly Efficient Visible-Light Photocatalysts
( Wiley-VCH Verlag , 2020 , Article)A universal sequential synthesis strategy in aqueous solution is presented for highly uniform core–shell structured photocatalysts, which consist of a metal sulfide light absorber core and a metal sulfide co-catalyst shell. ... -
Sequential random selection relaying for energy efficient wireless sensor networks
( IEEE , 2010 , Conference Paper)In a wireless sensor network with relaying capability, intermediate relay nodes are with limited energy budget. To maximize lifetime of relay nodes, selective relay strategies, requiring full channel state information ... -
Series-Connected Multi-Half-Bridge Modules Active Front-End Rectifier for Medium Voltage Variable Speed Drives
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)Medium-Voltage Variable Speed Drives (VSDs) are the backbone of several critical industries. Providing the proper dc-link voltage to support the VSD's converter is crucial. Conventionally, dc-link voltage is supplied either ... -
Series-connected multi-half-bridge modules converter for integrating multi-megawatt wind multi-phase permanent magnet synchronous generator with dc grid
( Institution of Engineering and Technology , 2017 , Article)In this study, a new transformerless wind energy conversion system to integrate high-power multi-phase permanent magnet wind generators to medium-voltage local grids is presented. The proposed converter topology consists ... -
Serious Games for Learning Among Older Adults With Cognitive Impairment: Systematic Review and Meta-analysis
( National library of medicine , 2023 , Article)BACKGROUND: Learning disabilities are among the major cognitive impairments caused by aging. Among the interventions used to improve learning among older adults are serious games, which are participative electronic games ... -
Seroconversion and safety of Covid-19 vaccines in patients with chronic liver disease and liver transplant: A systematic review
( HBKU Press , 2023 , Article)Background and Aims: As part of the COVID-19 control strategy, a growing number of vaccine portfolios evolved and got fast-tracked through regulatory agencies, with a limited examination of their efficacy and safety in ... -
Seroprevalence and epidemiological correlates of Toxoplasma gondii infections among patients referred for hospital-based serological testing in Doha, Qatar
( BioMed Central , 2008 , Article)Background. The city of Doha in Qatar has a high density of feral cats and there is a high risk of toxoplasmosis for the resident human population. No data currently exist for the prevalence of infection with Toxoplasma ...