800 research outputs found

    Darwish Ashraf

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    The fifteenth-century Persian poet Ashraf has received little attention from the tadhkirah-writers. His name occurs in Aḥmad ‘Alīkhān Hāshimī's vast Makhzan al-gharā'ib, but only with a few baits from a ghazal attached to it, and no details of his life. The only tadhkirah which contains a biographical notice of him is Taqī al-Dīn Kāshī's Khulāṣat al-ash'ār wa zubdat al-afkār. In the India Office manuscript of this work the notice occupies ff. 872 verso—875 verso.</jats:p

    Analysis and Optimization of p-Xylene Production Process

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    A Master of Science thesis in Chemical Engineering by Muhammad Tahir Ashraf entitled, "Analysis and Optimization of p-Xylene Production Process," submitted in June 2013. Thesis advisor is Dr. Rached Mohamed Chebbi and Co-advisor is Dr. Naif Abdelaziz Darwish. Available are both soft and hard copies of the thesis.In this study a process is developed for selective production of p-xylene from toluene methylation using reactive distillation for p-xylene separation. Complete process is simulated in Aspen Plus® and reaction parameters are optimized to get 97.5% p-xylene selectivity using built-in optimization tool. Highly selective p-xylene production greatly reduces the separation cost and also reduces the production of less desired xylene isomers. After separation p-xylene product stream purity of 99.7% is achieved. Then a second law analysis is made on the process developed and lost work of different blocks is compared. Heat integration of the process is done using Aspen Energy Analyzer® resulting in 23% reduced total lost work generation.College of EngineeringDepartment of Chemical EngineeringMaster of Science in Chemical Engineering (MSChE

    HERStory Makers 2022: Shirin Ashraf

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    Shirin Ashraf is a postdoctoral research associate at the University of Glasgow studying novel viruses from Uganda and other parts of Africa. She took part in HERStory Makers 2022.What is HERStory Makers?HERStory Makers is a social media competition for female-identifying early career researchers to share their research, their career journeys, and to inspire the next generation. Winners are selected by public vote. HERStory Makers is also part of EXPLORATHON, Scotland's contribution to European Researchers' Night.In 2022-23, EXPLORATHON was supported by the Engineering & Physical Sciences Research Council [grant number EP/X020894/1].Author contributions to contentShirin Ashraf conceived, planned, and recorded the video content. Kirsty Ross edited the video content to insert HERStory Maker credits, add subtitles, and maintain video length below Twitter/X limit of 2 mins and 20 secs, prior to scheduling the social media posts.</p

    IoD swarms collision avoidance via improved particle swarm optimization

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    Drones flights have been investigated widely. In the presence of high density and complex missions, collision avoidance among swarm of drones and with environment obstacles becomes a challenging task and indispensable. This paper aims to enhance the optimality and rapidity of three dimensional IoD path generation by improving the particle swarm optimization (PSO) algorithm. The improvements include using chaos map logic to initialize the population of PSO. Also, adaptive mutation is utilized to balance local and global search. Then, the inactive particles are replaced by new fresh particles to push the solution toward global optimal. Furthermore, Monte Carlo simulation is carried out and the results are compared with slandered PSO and with recent work CIPSO. The results exhibit significant improvement in convergence speed as well as optimal solution which prove the ability of proposed method to generate safety path for IoD formation without collision with terrain obstacle and among drones.The authors would like to acknowledge the support of the department of the computer engineering at King Fahd University of Petroleum and Minerals for this work.Ahmed, G (corresponding author), King Fahd Univ Petr & Minerals, Comp Engn Dept, Dhahran, Saudi Arabia. [email protected]; [email protected]; [email protected]; [email protected]

    Automating the determination of wave speed using the pu-loop method

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    The PU-loop (pressure-velocity loop) is a method for determining wave speed and relies on the linear relationship between the pressure and velocity in the absence of reflected waves. This linearity of the PU-loop during early systole, which is directly related to wave speed, has always been established by eye. This paper presents a new technique that establishes this linearity and thus determining wave speed online. Pressure and flow were measured in the ascending aorta of 11 anesthetised dogs. The slope of the PU-loop, indicating wave speed was determined by eye and by using the new technique. The difference between the slopes of the two methods is in the order of 3%. The new technique is convenient and allows for the online assessment of wave speed, which could be used as a bedside tool for the assessment of arterial compliance

    Keratoconus : current and future state-of-the-art

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    This book provides a practical guide to the most recent advances in the diagnostic management of corneal ectasia. Clear, concise chapters address new standardized nomograms of treatment of early progressive ectasia, new epithelium on future crosslinking with and without oxygen supplement, customized protocols, laser assisted corneal regularization protocols and the new femtolaser assisted lamellar corneal transplant. Clinicians and surgeons seeking a go-to guide on the topic of corneal ectasia will find this book to be an essential resource for the latest developments and predicted future trends in the field. © The Editor(s) (if applicable) and The Author(s)

    Correction to: Growth Factors and Neuroglobin in Astrocyte Protection Against Neurodegeneration and Oxidative Stress (Molecular Neurobiology, (2019), 56, 4, (2339-2351), 10.1007/s12035-018-1203-9)

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    The original version of this article unfortunately contained a typo error. The name of author “Ghulam Md Ashrad” should be written as “Ghulam Md Ashraf”. The authors hereby correct the name as displayed above. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.Universidad Autónoma de Chil

    IMR 665: Management of Audio Visual Records & Archives. Individual assignment: Article summary / Zuheir Ashraf Zakaria

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    Article on: Article 1 - “Audio-visual piracy: towards a study of the underground networks of cultural globalization” Article 2 - “Audiovisual Piracy, Informal Economy, and Cultural Globalization” This article summary comprises of two article of the same author with a full name of Tristan Mattelart. The first article published on 2009 entitled; “Audio-visual piracy: towards a study of the underground networks of cultural globalization”, while the second article that were published on the year 2011 entitled; “Audiovisual Piracy, Informal Economy, and Cultural Globalization”. These two article consist of 19 and 16 pages consecutively. Both of these article discuss the cultural industries threat it presents to the western world and the underground networks it related to. Although both of these articles discuss the steps taken mainly by the US government to combat these problem in order to protect their intellectual property rights of US companies. Since both of the article are being authored by the same author, we can see that the later article; “Audiovisual Piracy, Informal Economy, and Cultural Globalization” often mention and cite the older article as a reference

    Big Data Technologies–Supported Generic Visualization System in an Enterprise Cyber-Physical Environment

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    Cybersecurity and Privacy in Cyber-Physical Systems collects and reports on recent high-quality research that addresses different problems related to cybersecurity and privacy in cyber-physical systems (CPSs). It Presents high-quality contributions addressing related theoretical and practical aspects Improves the reader’s awareness of cybersecurity and privacy in CPSs Analyzes and presents the state of the art of CPSs, cybersecurity, and related technologies and methodologies Highlights and discusses recent developments and emerging trends in cybersecurity and privacy in CPSs Proposes new models, practical solutions, and technological advances related to cybersecurity and privacy in CPSs Discusses new cybersecurity and privacy models, prototypes, and protocols for CPSs This comprehensive book promotes high-quality research by bringing together researchers and experts in CPS security and privacy from around the world to share their knowledge of the different aspects of CPS security. Cybersecurity and Privacy in Cyber-Physical Systems is ideally suited for policymakers, industrial engineers, researchers, academics, and professionals seeking a thorough understanding of the principles of cybersecurity and privacy in CPSs. They will learn about promising solutions to these research problems and identify unresolved and challenging problems for their own research. Readers will also have an overview of CPS cybersecurity and privacy design
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