Browsing by Title
Now showing items 26138-26157 of 50233
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Unsteady CFD simulation for high speed centrifugal compressor operating near surge
( American Society of Mechanical Engineers (ASME) , 2014 , Conference Paper)Centrifugal compressor surge and stall are an instabilities flow and system phenomenon, which can lead to a loss of engine power, large pressure transients and, in some cases, failure of the compressor and bearing system. ... -
Unsteady State Process Computations On Spreadsheets
( Qatar University , 1993 , Article)Spreadsheets are becoming increasingly popular, as a useful tool, for making process engineering calculations. This paper shows the use of spreadsheets for computations of an unsteady state process described by ordinary ... -
Unsteady State Two Phase Flow Pressure Drop Calculations
( Qatar University , 1992 , Article)A method is presented to calculate unsteady state two phase flow in a gas-liquid line based on a quasi-steady state approach. A computer program for numerical solution of this method was prepared. Results of calculations ... -
Unsteady-State Interphase Diffusion
( Qatar University , 1993 , Article)This study is concerned with the problem of unsteady interphase diffusion for multicomponent dilute solutions. An integral technique, based on an approximate boundary-layer approach is used. Results are in good agreement ... -
Unsupervised adaptive microblog filtering for broad dynamic topics
( Elsevier , 2016 , Article)Information filtering has been a major task of study in the field of information retrieval (IR) for a long time, focusing on filtering well-formed documents such as news articles. Recently, more interest was directed towards ... -
Unsupervised feature selection method for improved human gait recognition
( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)Gait recognition is an emerging biometric technology which aims to identify people purely through the analysis of the way they walk. The technology has attracted interest as a method of identification because it is ... -
Unsupervised learning approach for web application auto-decomposition into microservices
( Elsevier Inc. , 2019 , Article)Nowadays, large monolithic web applications are manually decomposed into microservices for many reasons including adopting a modern architecture to ease maintenance and increase reusability. However, the existing approaches ... -
Unsupervised Technique for Anomaly Detection in Qatar Stock Market
( Institute of Electrical and Electronics Engineers Inc. , 2018 , Conference Paper)The aim of anomaly detection is to find patterns or data points that are not confirming the expected behavior inside the dataset. Techniques from a variety of disciplines like machine learning, statistics, information ... -
Untrained Neural Network Priors for Inverse Imaging Problems: A Survey
( IEEE Computer Society , 2023 , Article)In recent years, advancements in machine learning (ML) techniques, in particular, deep learning (DL) methods have gained a lot of momentum in solving inverse imaging problems, often surpassing the performance provided by ... -
An unusual case of modified Lemierre’s syndrome caused by staphylococcus aureus cellulitis
( International Scientific Literature Inc. , 2020 , Article)Patient: Male, 31-year-old Final Diagnosis: Lemierre’s Disease Symptoms: Conjunctival injection • eye pain and redness • fever • nasal swelling • periorbital oedema • ptosis • vesicular lesions nose Medication: — Clinical ... -
Unusual product from the acid-catalyzed one-pot, multicomponent reaction of thiocarbohydrazide, aldehydes, and phenacyl bromides
( Taylor & Francis , 2017 , Article)A one-pot, three-component protocol for the synthesis of novel five-membered thiazole ring bonded to two hydrazone motifs is described. The acid-catalyzed reaction of one equivalent of thiocarbohydrazide, two equivalents ... -
Unveiling a Biomarker Signature of Meningioma: the Need for a Panel of Genomic, Epigenetic, Proteomic, and RNA Biomarkers to Advance Diagnosis and Prognosis
( preprints , 2023 , Preprint)Meningiomas are the most prevalent primary intracranial tumors. The majority are benign but can undergo dedifferentiation in grades classified from I to III. Meningiomas tremendous variability in tumor behavior and slow ... -
Unveiling a Biomarker Signature of Meningioma: The Need for a Panel of Genomic, Epigenetic, Proteomic, and RNA Biomarkers to Advance Diagnosis and Prognosis
( MDPI , 2023 , Article Review)Meningiomas are the most prevalent primary intracranial tumors. The majority are benign but can undergo dedifferentiation into advanced grades classified by World Health Organization (WHO) into Grades 1 to 3. Meningiomas’ ... -
Unveiling and Brightening the Dark Side of Crowdfunding
( UC Berkeley Haas School of Business , 21-0 , Article)Crowdfunding is a promising way for individuals and start-ups to raise funding from a large number of people, using an online platform to turn their dreams into reality. It is an alternative to conventional options such ... -
Unveiling fabrication and environmental remediation of mxene-based nanoarchitectures in toxic metals removal from wastewater: Strategy and mechanism
( MDPI AG , 2020 , Article)Efficient approaches for toxic metal removal from wastewater have had transformative impacts to mitigating freshwater scarcity. Adsorption is among the most promising purification techniques due to its simplicity, low cost, ... -
Unveiling of Matters: The Role of Investigative Journalism in Uncovering Corruption in the Arab World
( IntechOpen , 2019 , Book chapter)This study investigates types of corruption that had been revealed by investigative reports during the last 3 years and their impact on social, legislative, and other aspects of life. It surveys 145 reports achieved and ... -
Unveiling one-pot scalable fabrication of reusable carboxylated heterogeneous carbon-based catalysts from eucalyptus plant with the assistance of dry ice for selective hydrolysis of eucalyptus biomass
( Elsevier Ltd , 2020 , Article)Biomass is the most abundant source for organic carbon-based substances on the earth; however, its utilization as sources for heterogeneous catalysts for biorefineries is rarely reported. Herein, a simple approach was ... -
Unveiling One-Pot Template-Free Fabrication of Exquisite Multidimensional PtNi Multicube Nanoarchitectonics for the Efficient Electrochemical Oxidation of Ethanol and Methanol with a Great Tolerance for CO
( American Chemical Society , 2020 , Article)Multidimensional bimetallic Pt-based nanoarchitectonics are highly promising in electrochemical energy conversion technologies because of their fancy structural merits and accessible active sites; however, hitherto their ... -
Unveiling Qatarization: a strategic HRM perspective on the context of implementing successful workforce nationalization
( Taylor & Francis , 2023 , Article)This study is motivated by the infancy of literature on strategic HRM in regard to government policies and the lack of empirical research on the HRM policy of nationalization in the countries of the Gulf Cooperation Council ... -
Unveiling Tetraselmis subcordiformis lipidome dynamics during large-scale cultivation in open raceway pond
( Springer Nature , 2024 , Article)A local microalgal strain of Tetraselmis subcordiformis was cultivated at large-scale using open raceway pond. The temporal influence on the growth and lipidomic profile of the strain was investigated using optic density ...
