158 research outputs found

    Abu’l–‘Izz al-Jazari and His Role in The Advancement of the Science of Mechanics (1136-1206)

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    Abu’l-‘Izz al-Jazari is considered one of the pioneers of mechanical engineering in the middle Islamic centuries. He is known not only as a collector of previous scientists' thoughts but also as an inventor and a mechanical engineering designer.Writing about this scientist is of special significance because it basically explains an important and neglected aspect of mechanical science. This study aims to shed light on al-Jazari’s efforts in the field of mechanics based on the documents and resources of Islamic history as well as foreign resources

    Consideration of specific influence of the native language phonetic system on losing the arabic accent

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    The phonetic phenomena requiring practical mastering among foreign students in the process of teaching Russian pronunciation are taken into account in two ways: 1) consideration of the phonetic system to which this phenomenon belongs, 2) consideration of the phonetic system of the students' native language (Arabic in our case)

    The Role of Information Management Systems in the Implementation of the Digital Economy Development Strategy

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    Purpose: The aim of this study is to demonstrate the role that management information systems can play in developing the digital economy.   Theoretical framework. The theory of optimal discrete-continuous control, the principles of Pontryagin, Bellman and Markov and the theory of the development of digital interactions were used.   Design/methodology/approach: The systematic literature review was built from the content analysis of papers from the Web of Science and Scopus database. The papers were analyzed from descriptive, bibliographic, methodological, results and citation characteristics.   Findings: From the results, it was noted that Russia is the absolute position in studies related to digital economies and the role that management information systems can play in developing and achieving strategic development, growth and efficiency.   Research, Practical & Social implications: Many more publications could not be included for  generalisation  reasons  because  the  study  included  data  from  two  databases. Additionally, our research shows that there aren’t many journals that have written about cause-related digital economy.   Originality/value. A model of digital control and development of digital interactions has been proposed and investigated, which takes into account the influence of the "white noise" effect in the system

    Preface

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    In recent years the involvement of Information Technology in business, governments, and education has increased dramatically. More and more research works have been conducted in different areas of Information Technology such as Artificial Intelligence, Database Managements, Algorithms, Web Technologies, Computer Graphics, Networks, etc. In recognizing the importance and major advances, Information Technology has been chosen to be the theme of this special issue of the Information Science Journal

    Seismic and structural characterization of fluid escape pipes using 3D and partial stack seismic from the Loyal field (UK) : A multiphase and repeated intrusive mechanism

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    Acknowledgements We thank an anonymous reviewer for the several constructive comments. The seismic interpretation and image processing was carried out in the SeisLab facility at the University of Aberdeen (sponsored by BG BP and Chevron). Seismic imaging analysis was performed using GeoTeric® (ffA), and analysis of seismic amplitudes was performed in Petrel® 2016 (Schlumberger). We would like to thank the Tuscany PhD Regional program and the Erasmus+exchange for funding the Aberdeen permanence of one of us (D.M.). Gazprom for supporting A.J PhD., BP for the release of the Loyal field seismic dataset utilized in this research paper and also N.Vanden Beukel (BP) and M. Gorling (BP) and his colleagues for their assistance.Peer reviewedPostprin

    Numerical evaluation of dry-stacked masonry walls against blast loading

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    This research intends to numerically study the out-of-plane behaviour of confined dry-stacked masonry (CDSM) walls against blast loading. CDSM is a mortar-less interlocking masonry system consisting of Interlocking Compressed Earth Block (ICEB) laid in stretcher bond with reinforced concrete (RC) confining elements. A nonlinear numerical model is developed using advanced finite element software ABAQUS to study the response of CDSM walls subjected to explosive loads of 8 kgs Trinitrotoluene (TNT). The blast load was detonated at 2m from the walls of confined masonry at a height of 1m above ground. The resulting damage distribution and displacement time history were compared for two walls with different reinforcement. This study helps to visualize the effect of diagonal reinforcement along with the performance of CDSM walls against blast loading using ABAQUS. The results shows less damage for diagonally reinforced wall

    Five Bivalve Species from the Recently Discovered Coral Reef in the Marine Coastal Waters of Iraq

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    In the present report five bivalve species are newly recorded from the recently discovered coral reef in the coastal waters of Iraq, North West Arabian Gulf. The bivalves were inhabit a hard coral substratum as well as sand and mud substrata, at depth ranging from 7-10 m. The region is characterized by high temperature subtropical climate (temperature range: 14-34 C˚). The identified mulluscan bivalves namely Chlamys livida, Pinna bicolor, Malvifundus normalis, Barbatia decussate, and Lithophaga robusta. All the present specimens bivalves were living animals and they classified according to morphological characteristics. Specimens were deposited at the Genetic Legacy Laboratory and Museum of the Marine Science Center/ University of Basrah

    Adaptive Neuro-Fuzzy Inference System for Prediction of Surgery Time for Ischemic Stroke Patients

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    With the advent of machine learning techniques, creation and utilization of prediction models for different medical procedures including prediction of diagnosis, treatment and recovery of different medical conditions has become the norm. Recent studies focus on the automation of infarction volume growth rate prediction by the utilization of machine learning techniques. These techniques when effectively applied, could significantly help in reducing the time needed to attend to stroke patients. We propose, in this proposal, a Fuzzy Inference System that can determine when a stroke patient should undergo Decompressive Hemicraniectomy. The second infarction volume growth rate and the decision whether a patient needs to undergo this procedure, both predicted outputs of two trained models, act as inputs to this system. While the initial prediction model, that which predicts the second infarction volume growth rate is adopted from an earlier model, we propose the later model in this paper. Three Machine Learning techniques - Support Vector Machine, Artificial Neural Network and Adaptive Neuro Fuzzy Inference System with and without the feature reduction technique of Principle Component Analysis were modelled and evaluated, the best of which was selected to model the proposed prediction model. We also defined the structure of Fuzzy Inference System along with its rules and obtained an overall accuracy of 95.7% with a precision of 1 showing promising results from the use of fuzzy logic

    Modélisation Du Cycle Des Roches Sédimentaires Au Profit Des Apprenants De La Première Année Collégiale

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    The present study aims to identify the difficulties to assimilate the concept of the sedimentary rocks cycle for first year middle high school students. It also aims to test the importance of a physical model that we have proposed. In order to collect the didactic difficulties encountered in the classroom as well as the means suggested to overcome them, we administered an anonymous questionnaire to 44 teachers of Life and Earth Sciences. To test the significance of the model, 184 learners were divided into two groups. While the first group was taught using a model, no specific one was used to teach the other group. After a constructive evaluation, 73% of the learners in the first group achieved satisfactory results, against 34% in the second one

    Adaptation of Grid Tied Photovoltaic (GT-PV) System as Retrofit Renewable Energy Model for Single-Family House in UAE

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    Gulf Cooperation Countries (GCC) governments are encouraging advances in renewable energy and its deployment to reform domestic energy market policy. GCC countries including United Arab Emirates (UAE) all have begun to explore renewable energy technologies. This research intended to develop a framework model to use Grid Tied photovoltaic renewable energy (GT-PV) in the housing design of the GCC region particularly in UAE. In this regard, research has analyzed the various types of housing plans and worked out the possibilities of retrofit design to adapt renewable energy model to implement (GT-PV) in existing housing for their energy needs.  This study has determined the total energy need of each type of house, data of energy need was statically analyzed, and renewable energy output was calculated. The end result of research has surfaced a comprehensive model to design a grid-tied photovoltaic renewable energy system to cater the need for private housing in UAE
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