77 research outputs found

    Virtual and Remote Laboratories for E-Learning Using EDA Tools

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    Virtual and Remote Laboratories for E-Learning Using EDA Tool

    MIMO System Implementation for WSN Using Xilinx Tools

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    Development and Hardware Implementation of IoT-Based Patrol Robot for Remote Gas Leak Inspection

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    The Internet of Things Robot (IoTR) is an emerging paradigm that brings together robotic systems with the Internet of Things (IoT) that connect sensors and smart objects pervasively embedded in everyday environments. With the recent developments in robotic system applications, it becomes apparent that the mobile robot has great importance in real-world applications such as navigation and surveillance. One of the most important applications of a mobile robot is patrolling and gas leak detection. This paper proposes a real-time IoT Robot (IoTR) that can be used indoors or outdoors for gas leak detection purposes. The proposed mobile robot is equipped with microphones, speakers, the hub of smart sensors that are necessary for patrolling and gas leak detection, a high-resolution IP video camera for live video streaming, Bluetooth for indoor applications and tracking, and GPS/GPRS for outdoor applications and tracking. The experimental testing of the preliminary prototype confirms the design objectives. The robot has been tested for indoor and outdoor modes; the robot can detect gas leakage and provides a live video streaming of the surrounding area, which can be tracked on Google maps. At the same time, the robot can be controlled remotely through a mobile app or website, the robot can move autonomously and avoid obstacles. The proposed work provides a low-cost IoT robot through the use of the available and cheap components and sensors, which featured a high quality at the same time. Our proposed system exhibits promising gas sensing performance in harsh environments, using intelligent gas sensors that have a fast response (>10s), low cost, high sensitivity, long life, robustness, and physical size

    Multimodality imaging of Abernethy malformation

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    Abernethy malformation, or congenital extrahepatic portosystemic venous shunt, is a rare anomaly involving the portal venous system. Despite its rarity, it is increasingly being reported, and therefore, it is important to diagnose given the potential adverse clinical consequences if left untreated. It has a spectrum of presentations, ranging from complete lack of symptoms, to causing hepatic carcinoma, hepatic encephalopathy, severe pulmonary hypertension, and diffuse pulmonary arteriovenous malformation. We herein describe the case and echocardiographic, computed tomography, and magnetic resonance imaging findings of a transgender individual, with this anomaly detected incidentally during adulthood

    Supraventricular tachycardia and catheter ablation: Anxiety levels and patient perceptions

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    Aim: To investigate anxiety levels and patient perception associated with supraventricular tachycardia (SVT); investigate anxiety levels and patient perception pre- and post- radiofrequency catheter ablation (RFCA); and explore any association between anxiety and patient perception with patient age and gender.Design: Follow-up quantitative and qualitative cohort study. 141 patients in a tertiary centre in Scotland who underwent an electrophysiological study and RFCA for atrioventricular nodal re-entrant tachycardia, atrioventricular re-entrant tachycardia or atrial tachycardia between 2009 and 2012 were enrolled. 59 (41.8%) were male; mean age at follow-up was 50 years.Interventions: Follow-up by structured phone questionnaire; mean follow-up period was 14 months. Main outcome measures: Anxiety level and patient perception during index episode, and anxiety level before and after RFCA.Results: During index episode, median patient anxiety, on a scale of 0–10, was 8. Anxiety was not associated with gender (p = 0.07). Patients in the lowest and highest anxiety groups tended to be older (mean 54.5 and 44.4 years respectively) compared with those in the middle 2 groups (mean 34.1 and 35.6 years). There was an association between anxiety and age (p = 0.039). 45 (32.0%) participants thought they were having a heart attack or dying. Before RFCA, median anxiety level was 7. 55 (39.0%) patients were afraid of complications, 21 (14.9%) patients feared being awake during RFCA. After RFCA, median anxiety was 2.5.Conclusions: Anxiety is a common accompaniment to SVT that may lead to greater pre-procedural anxiety. Exploring this link may allow reduction of anxiety via better psychopharmacological intervention, education, and preprocedural counselling

    Modeling Method of Finite Element Modeler and Electromagnetic Solvers for Education and Research in RF MEMS

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    Field of electronics engineering is the most captivating among students, researchers and academicians now-adays. With the passage of time the requirement of advance tools for engineering is increasing. Many institutions and universities around the globe provide quality education to various engineering domain. Students although study theory courses but they also need exposure that how theory can be related to actual devices. Simulations play an important role for relating theoretical components to the virtual practical environment. Students of Radio Frequency (RF) domain and especially students that are studying Microelectromechanical Systems (MEMS) as courses, due to the extreme complexity of these devices, students need multiple tools to simulate the performance parameters. This paper highlights the most prominent tools that are used in the industry to design and implement RF MEMS structures. The role of Electromagnetic (EM) solvers and Finite Element Modeller (FEM) and its impact on electronics engineering education is demonstrated. Modeling approach of these tools are also explained. These tools and due to there huge advantages, electronics graduates should study these tools in their course curriculum to know how to tackle various types of RF problems and through case studies, it is demonstrated that how these tools can aid shift from just theoretical study to virtual practical environment

    Feasibility of some adaptation measures of on-farm irrigation in Egypt under water scarcity conditions

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    -------------------------------------------------- To cite th is article / Pou r citer cet article Abstract. The aim of this investigation is to evaluate some proposed adaptation measures in order to overcome the projected impacts of climate change over on-farm irrigation system in Egypt. Improve irrigation systems efficiencies, change irrigation systems, and deficient irrigation were evaluated by using multi-criteria approach of evaluation. Adaptation measures were studied under current climate conditions and climate change projections of IPCC SRES scenarios for years 2025s, 2050s and 2100s, and evaluated regarding to the change in crop-water demands, change in crop-yield, change in water use efficiency, irrigation-energy requirements and the abetment cost. Improving surface irrigation efficiency was likely had a higher potentiality to overcome the negative impacts of climate change in old land. Deficit irrigation had negative effects on overcoming the impacts of climate change, but it could be acceptable for the conditions that the water saving is more important than crops reduction. Keywords. Improved surface irrigation -Climate change -Irrigation efficiency -Deficit irrigation -Irrigation energy. Faisabilité de certaines mesures d'adaptation d'irrigation à la ferme e

    INFLUENCE OF GREEN-HOUSE COVER ON POTENTIAL EVAPOTRANSPIRATION AND CUCUMBER WATER REQUIREMENTS

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    The experiment was conducted through two successive seasons of 2008 and 2009 at El-Bosaily farm, El-Behira governorate at the North Coastal of the Nile Delta, in Egypt. This work aimed to study the effect of three green-house covers (polyethylene sheet, white and black net) and three irrigation levels [80%, 100% and 120% of the potential evapotranspiration estimated according to class A pan equation (ETo)], applied by drip irrigation system, on plant growth and crop yield of Cucumber (Cucumis sativus L. cv. Reda F1). The experimental design was split- plot with three replicates. The results showed that white net green-house cover optimized growth and yield of cucumber plant. White net cover treatment recorded the highest vegetative growth (plant height, number of leaves, total leaves area, total fresh and dry weights), and significantly increased total yield. The highest vegetative growth was obtained by 100% ETo compared to 80 and 120% ETo treatments. The interaction among water treatment and green-house cover indicated the highest vegetative growth and crop yield were obtained under white net cover with 100% ETo

    Reconfigurable SRTM System for Road Traffic in Kingdom of Bahrain

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    "jats:p"This paper presents reconfigurable hardware architecture for smart road traffic system based on Field Programmable Gate Array (FPGA). The design can be reconfigured for different timing of the traffic signals according to the received and collected data read by the different sensors on the road; the design has been described using VHDL (VHSIC Hardware Description Language). The SRTM (Smart Road Traffic Management) System has some more features that help passenger to avoid traffic jamming by sending the collected information through web/mobile applications to find the best road between the start and destination points, which will be displayed on Google maps, at the same time it will also shows the points of traffic jamming on Google maps. SRTM system can also manage emergency vehicles such as ambulance and fire fighter and also can send snapshots and video streaming for different roads and junctions to show the points of traffic jamming. The design has been simulated and tested using ModelSim PE student edition 10.4. Spartan 3 FPGA starter kit from Xilinx has been used for implementing and testing the design in a hardware level. Document type: Articl
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