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Kadri</title> <meta name="description" content="Search results for: Adel Kadri"> <meta name="keywords" content="Adel Kadri"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" type="button" data-toggle="collapse" data-target="#navbarMenu" aria-controls="navbarMenu" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="w-100"> <div class="d-none d-lg-flex flex-row-reverse"> <form method="get" action="https://waset.org/search" class="form-inline my-2 my-lg-0"> <input class="form-control mr-sm-2" type="search" placeholder="Search Conferences" value="Adel Kadri" name="q" aria-label="Search"> <button class="btn btn-light my-2 my-sm-0" type="submit"><i class="fas fa-search"></i></button> </form> </div> <div class="collapse navbar-collapse mt-1" id="navbarMenu"> <ul class="navbar-nav ml-auto align-items-center" id="mainNavMenu"> <li class="nav-item"> <a class="nav-link" href="https://waset.org/conferences" title="Conferences in 2024/2025/2026">Conferences</a> </li> <li class="nav-item"> <a class="nav-link" href="https://waset.org/disciplines" title="Disciplines">Disciplines</a> </li> <li 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Adel Kadri"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 192</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Adel Kadri</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">192</span> An Improved Approach Based on MAS Architecture and Heuristic Algorithm for Systematic Maintenance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelhadi%20Adel">Abdelhadi Adel</a>, <a href="https://publications.waset.org/abstracts/search?q=Kadri%20Ouahab"> Kadri Ouahab</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper proposes an improved approach based on MAS Architecture and Heuristic Algorithm for systematic maintenance to minimize makespan. We have implemented a problem-solving approach for optimizing the processing time, methods based on metaheuristics. The proposed approach is inspired by the behavior of the human body. This hybridization is between a multi-agent system and inspirations of the human body, especially genetics. The effectiveness of our approach has been demonstrated repeatedly in this paper. To solve such a complex problem, we proposed an approach which we have used advanced operators such as uniform crossover set and single point mutation. The proposed approach is applied to three preventive maintenance policies. These policies are intended to maximize the availability or to maintain a minimum level of reliability during the production chain. The results show that our algorithm outperforms existing algorithms. We assumed that the machines might be unavailable periodically during the production scheduling. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=multi-agent%20systems" title="multi-agent systems">multi-agent systems</a>, <a href="https://publications.waset.org/abstracts/search?q=emergence" title=" emergence"> emergence</a>, <a href="https://publications.waset.org/abstracts/search?q=genetic%20algorithm" title=" genetic algorithm"> genetic algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=makespan" title=" makespan"> makespan</a>, <a href="https://publications.waset.org/abstracts/search?q=systematic%20maintenance" title=" systematic maintenance"> systematic maintenance</a>, <a href="https://publications.waset.org/abstracts/search?q=scheduling" title=" scheduling"> scheduling</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20flow%20shop%20scheduling" title=" hybrid flow shop scheduling"> hybrid flow shop scheduling</a> </p> <a href="https://publications.waset.org/abstracts/69375/an-improved-approach-based-on-mas-architecture-and-heuristic-algorithm-for-systematic-maintenance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/69375.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">301</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">191</span> An Efficient Hybrid Approach Based on Multi-Agent System and Emergence Method for the Integration of Systematic Preventive Maintenance Policies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelhadi%20Adel">Abdelhadi Adel</a>, <a href="https://publications.waset.org/abstracts/search?q=Kadri%20Ouahab"> Kadri Ouahab</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper proposes a hybrid algorithm for the integration of systematic preventive maintenance policies in hybrid flow shop scheduling to minimize makespan. We have implemented a problem-solving approach for optimizing the processing time, methods based on metaheuristics. The proposed approach is inspired by the behavior of the human body. This hybridization is between a multi-agent system and inspirations of the human body, especially genetics. The effectiveness of our approach has been demonstrated repeatedly in this paper. To solve such a complex problem, we proposed an approach which we have used advanced operators such as uniform crossover set and single point mutation. The proposed approach is applied to three preventive maintenance policies. These policies are intended to maximize the availability or to maintain a minimum level of reliability during the production chain. The results show that our algorithm outperforms existing algorithms. We assumed that the machines might be unavailable periodically during the production scheduling. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=multi-agent%20systems" title="multi-agent systems">multi-agent systems</a>, <a href="https://publications.waset.org/abstracts/search?q=emergence" title=" emergence"> emergence</a>, <a href="https://publications.waset.org/abstracts/search?q=genetic%20algorithm" title=" genetic algorithm"> genetic algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=makespan" title=" makespan"> makespan</a>, <a href="https://publications.waset.org/abstracts/search?q=systematic%20maintenance" title=" systematic maintenance"> systematic maintenance</a>, <a href="https://publications.waset.org/abstracts/search?q=scheduling" title=" scheduling"> scheduling</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20flow%20shop%20scheduling" title=" hybrid flow shop scheduling"> hybrid flow shop scheduling</a> </p> <a href="https://publications.waset.org/abstracts/46553/an-efficient-hybrid-approach-based-on-multi-agent-system-and-emergence-method-for-the-integration-of-systematic-preventive-maintenance-policies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46553.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">336</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">190</span> Chemical Composition, in vitro Antioxidant Activity and Gas Chromatography–Mass Spectrometry Analysis of Essential Oil and Extracts of Ruta chalpensis aerial Parts Growing in Tunisian Sahara</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Samir%20Falhi">Samir Falhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Neji%20Gharsallah"> Neji Gharsallah</a>, <a href="https://publications.waset.org/abstracts/search?q=Adel%20Kadri"> Adel Kadri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ruta chalpensis L. is a medicinal plant in the family of Rutaceae, has been used as an important traditional in the Mediterranean basin in the treatment of many diseases. The current study was devoted to investigate and evaluate the chemical composition, total phenolic, flavonoid and tannin contents, and in vitro antioxidant activities of ethyl acetate, ethanol and hydroalcoholic extracts and essential oil from the aerial parts of Ruta chalpensis from Tunisian Sahara. Total phenolic, flavonoid and tannin contents of extracts ranged from 40.39 ± 1.87 to 75.13 ± 1.22 mg of GAE/g, from 22.62 ± 1.55 to 27.51 ± 1.04 mg of QE/g, and from 5.56 ± 1.32 to 10.89 ± 1.10 mg of CE/g respectively. Results showed that the highest antioxidant activities was determined for ethanol extract with IC50 value of 26.23 ± 0.91 µg/mL for 2,2-diphenyl-1-picrylhydrazyl assay, and for hydroalcoholic extract with EC50 value of 412.95±6.57 µg/mL and 105.52±2.45 mg of α-tocopherol/g for ferric reducing antioxidant power and total antioxidant capacity assays, respectively. Furthermore, Gas Chromatography–Mass Spectrometry (GC-MS) analysis of essential oil led to identification of 20 compounds representing 98.96 % of the total composition. The major components of essential oil were 2-undecanone (39.13%), 2-nonanone (25.04), 1-nonene (13.81), and α-limonene (7.72). Spectral data of Fourier-transform infrared spectroscopy analysis (FT-IR) of extracts revealed the presence of functional groups such as C= O, C─O, ─OH, and C─H, which confirmed its richness on polyphenols and biological active functional groups. These results showed that Ruta chalpensis could be a potential natural source of antioxidants that can be used in food and nutraceutical applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antioxidant" title="antioxidant">antioxidant</a>, <a href="https://publications.waset.org/abstracts/search?q=FT-IR%20analysis" title=" FT-IR analysis"> FT-IR analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=GC-MS%20analysis" title=" GC-MS analysis"> GC-MS analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=phytochemicals%20contents" title=" phytochemicals contents"> phytochemicals contents</a>, <a href="https://publications.waset.org/abstracts/search?q=Ruta%20chalpensis" title=" Ruta chalpensis"> Ruta chalpensis</a> </p> <a href="https://publications.waset.org/abstracts/95645/chemical-composition-in-vitro-antioxidant-activity-and-gas-chromatography-mass-spectrometry-analysis-of-essential-oil-and-extracts-of-ruta-chalpensis-aerial-parts-growing-in-tunisian-sahara" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/95645.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">147</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">189</span> Fault Diagnosis of Manufacturing Systems Using AntTreeStoch with Parameter Optimization by ACO</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ouahab%20Kadri">Ouahab Kadri</a>, <a href="https://publications.waset.org/abstracts/search?q=Leila%20Hayet%20Mouss"> Leila Hayet Mouss</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we present three diagnostic modules for complex and dynamic systems. These modules are based on three ant colony algorithms, which are AntTreeStoch, Lumer & Faieta and Binary ant colony. We chose these algorithms for their simplicity and their wide application range. However, we cannot use these algorithms in their basement forms as they have several limitations. To use these algorithms in a diagnostic system, we have proposed three variants. We have tested these algorithms on datasets issued from two industrial systems, which are clinkering system and pasteurization system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ant%20colony%20algorithms" title="ant colony algorithms">ant colony algorithms</a>, <a href="https://publications.waset.org/abstracts/search?q=complex%20and%20dynamic%20systems" title=" complex and dynamic systems"> complex and dynamic systems</a>, <a href="https://publications.waset.org/abstracts/search?q=diagnosis" title=" diagnosis"> diagnosis</a>, <a href="https://publications.waset.org/abstracts/search?q=classification" title=" classification"> classification</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a> </p> <a href="https://publications.waset.org/abstracts/42293/fault-diagnosis-of-manufacturing-systems-using-anttreestoch-with-parameter-optimization-by-aco" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/42293.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">298</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">188</span> Adsorption Cooling Using Hybrid Energy Resources</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20Benelmir">R. Benelmir</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20El%20Kadri"> M. El Kadri</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Donnot"> A. Donnot</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Descieux"> D. Descieux</a> </p> <p class="card-text"><strong>Abstract:</strong></p> HVAC represents a significant part of energy needs in buildings. Integrating renewable energy in cooling processes contributes to reducing primary energy consumption. Sorption refrigeration allows cold production through the use of solar/biomass/geothermal energy or even valuation of waste heat. This work presents an analysis of an experimental bench incorporating an adsorption chiller driven by hybrid energy resources associating solar thermal collectors with a cogeneration gas engine and a geothermal heat pump. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solar%20cooling" title="solar cooling">solar cooling</a>, <a href="https://publications.waset.org/abstracts/search?q=cogeneration" title=" cogeneration"> cogeneration</a>, <a href="https://publications.waset.org/abstracts/search?q=geothermal%20heat%20pump" title=" geothermal heat pump"> geothermal heat pump</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20energy%20resources" title=" hybrid energy resources"> hybrid energy resources</a> </p> <a href="https://publications.waset.org/abstracts/48750/adsorption-cooling-using-hybrid-energy-resources" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48750.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">360</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">187</span> Groundwater Contamination Assessment and Mitigation Strategies for Water Resource Sustainability: A Concise Review</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khawar%20Naeem">Khawar Naeem</a>, <a href="https://publications.waset.org/abstracts/search?q=Adel%20Elomri"> Adel Elomri</a>, <a href="https://publications.waset.org/abstracts/search?q=Adel%20Zghibi"> Adel Zghibi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Contamination leakage from municipal solid waste (MSW) landfills is a serious environmental challenge that poses a threat to interconnected ecosystems. It not only contaminates the soil of the saturated zone, but it also percolates down the earth and contaminates the groundwater (GW). In this concise literature review, an effort is made to understand the environmental hazards posed by this contamination to the soil and groundwater, the type of contamination, and possible solutions proposed in the literature. In the study’s second phase, the MSW management practices are explored as the landfill site dump rate and type of MSW into the landfill site directly depend on the MSW management strategies. Case studies from multiple developed and underdeveloped countries are presented, and the complex MSW management system is investigated from an operational perspective to minimize the contamination of GW. One of the significant tools used in the literature was found to be Systems Dynamic Modeling (SDM), which is a simulation-based approach to study the stakeholder’s approach. By employing the SDM approach, the risk of GW contamination can be reduced by devising effective MSW management policies, ultimately resulting in water resource sustainability and regional sustainable development. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=groundwater%20contamination" title="groundwater contamination">groundwater contamination</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20risk" title=" environmental risk"> environmental risk</a>, <a href="https://publications.waset.org/abstracts/search?q=municipal%20solid%20waste%20management" title=" municipal solid waste management"> municipal solid waste management</a>, <a href="https://publications.waset.org/abstracts/search?q=system%20dynamic%20modeling" title=" system dynamic modeling"> system dynamic modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20resource%20sustainability" title=" water resource sustainability"> water resource sustainability</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20development" title=" sustainable development"> sustainable development</a> </p> <a href="https://publications.waset.org/abstracts/172776/groundwater-contamination-assessment-and-mitigation-strategies-for-water-resource-sustainability-a-concise-review" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/172776.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">77</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">186</span> Physico-Chemical Properties of Silurian Hot Shale in Ahnet Basin, Algeria: Case Study Well ASS-1</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Mehdi%20Kadri">Mohamed Mehdi Kadri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The prediction of hot shale interval in Silurian formation in a well drilled vertically in Ahnet basin Is by logging Data (Resistivity, Gamma Ray, Sonic) with the calculation of total organic carbon (TOC) using ∆ log R Method. The aim of this paper is to present Physico-chemical Properties of Hot Shale using IR spectroscopy and gas chromatography-mass spectrometry analysis; this mixture of measurements, evaluation and characterization show that the hot shale interval located in the lower of Silurian, the molecules adsorbed at the surface of shale sheet are significantly different from petroleum hydrocarbons this result are also supported with gas-liquid chromatography showed that the study extract is a hydroxypropyl. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=physic-chemical%20analysis" title="physic-chemical analysis">physic-chemical analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=reservoirs%20characterization" title=" reservoirs characterization"> reservoirs characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=sweet%20window%20evaluation" title=" sweet window evaluation"> sweet window evaluation</a>, <a href="https://publications.waset.org/abstracts/search?q=Silurian%20shale" title=" Silurian shale"> Silurian shale</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahnet%20basin" title=" Ahnet basin"> Ahnet basin</a> </p> <a href="https://publications.waset.org/abstracts/151737/physico-chemical-properties-of-silurian-hot-shale-in-ahnet-basin-algeria-case-study-well-ass-1" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/151737.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">99</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">185</span> Mitigation of Seismic Forces Effect on Highway Bridge Using Aseismic Bearings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kaoutar%20Zellat">Kaoutar Zellat</a>, <a href="https://publications.waset.org/abstracts/search?q=Tahar%20Kadri"> Tahar Kadri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of new aseismic techniques is to provide an additional means of energy dissipation, thereby reducing the transmitted acceleration into the superstructure. In order to demonstrate the effectiveness of aseismic bearings technique and understand the behavior of seismically isolated bridges by such devices a three-span continuous deck bridge made of reinforced concrete is considered. The bridge is modeled as a discrete model and the relative displacements of the isolation bearing are crucial from the design point of view of isolation system and separation joints at the abutment level. The systems presented here are passive control systems and the results of some important experimental tests are also included. The results show that the base shear in the piers is significantly reduced for the isolated system as compared to the non isolated system in the both directions of the bridge. This indicates that the use of aseismic systems is effective in reducing the earthquake response of the bridge. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aseismic%20bearings" title="aseismic bearings">aseismic bearings</a>, <a href="https://publications.waset.org/abstracts/search?q=bridge%20isolation" title=" bridge isolation"> bridge isolation</a>, <a href="https://publications.waset.org/abstracts/search?q=bridge" title=" bridge"> bridge</a>, <a href="https://publications.waset.org/abstracts/search?q=seismic%20response" title=" seismic response"> seismic response</a> </p> <a href="https://publications.waset.org/abstracts/14253/mitigation-of-seismic-forces-effect-on-highway-bridge-using-aseismic-bearings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14253.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">359</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">184</span> Strengthening of Bridges by Additional Prestressing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Bouhaloufa">A. Bouhaloufa</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Kadri"> T. Kadri</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Zouaoui"> S. Zouaoui</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Belhacene"> A. Belhacene</a> </p> <p class="card-text"><strong>Abstract:</strong></p> To put more durable bridges, it is important to maintain existing structures, rather than investing in new structures. Instead of demolishing the old bridge and replace them with new, we must preserve and upgrade using better methods of diagnosis, auscultation and repair, the interest of this work is to increase the bearing capacity bridges damaged by additional prestressing, this type of reinforcement is growing continuously. In addition to excellent static strength, prestressing also has a very high resistance to fatigue, so it is suitable to solve the problem of failure of the bearing capacity of the bridges. This failure often comes to the development of overloads in quantity and quality, that is our daily traffic has increased and become very complicated, on the other hand its constituents are advanced in weight and speed and therefore almost all old bridges became unable to support the movement of the latter and remain disabled to all these problems. The main purpose of this work includes the following three aspects: - Determination of the main diseases and factors affecting the deterioration of bridges in Algeria, - Evaluation of the bearing capacity of bridges, - Proposal technical reinforcement to improve the bearing capacity of a degraded structure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bridges" title="bridges">bridges</a>, <a href="https://publications.waset.org/abstracts/search?q=repair" title=" repair"> repair</a>, <a href="https://publications.waset.org/abstracts/search?q=auscultation" title=" auscultation"> auscultation</a>, <a href="https://publications.waset.org/abstracts/search?q=diagnosis" title=" diagnosis"> diagnosis</a>, <a href="https://publications.waset.org/abstracts/search?q=pathology" title=" pathology"> pathology</a>, <a href="https://publications.waset.org/abstracts/search?q=additional%20prestressing" title=" additional prestressing"> additional prestressing</a> </p> <a href="https://publications.waset.org/abstracts/21068/strengthening-of-bridges-by-additional-prestressing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21068.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">613</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">183</span> Treatment of Interferograms Image of Perturbation Processes in Metallic Samples by Optical Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daira%20Radouane">Daira Radouane</a>, <a href="https://publications.waset.org/abstracts/search?q=Naim%20Boudmagh"> Naim Boudmagh</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamada%20Adel"> Hamada Adel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The but of this handling is to use the technique of the shearing with a mechanism lapping machine of image: a prism of Wollaston. We want to characterize this prism in order to be able to employ it later on in an analysis by shearing. A prism of Wollaston is a prism produced in a birefringent material i.e. having two indexes of refraction. This prism is cleaved so as to present the directions associated with these indices in its face with entry. It should be noted that these directions are perpendicular between them. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=non%20destructive%20control" title="non destructive control">non destructive control</a>, <a href="https://publications.waset.org/abstracts/search?q=aluminium" title=" aluminium"> aluminium</a>, <a href="https://publications.waset.org/abstracts/search?q=interferometry" title=" interferometry"> interferometry</a>, <a href="https://publications.waset.org/abstracts/search?q=treatment%20of%20image" title=" treatment of image"> treatment of image</a> </p> <a href="https://publications.waset.org/abstracts/15220/treatment-of-interferograms-image-of-perturbation-processes-in-metallic-samples-by-optical-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15220.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">331</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">182</span> Successful Treatment of Multifocal XDR Tuberculosis Osteomyelitis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abeer%20N.%20Alshukairi">Abeer N. Alshukairi</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20A.%20Alrajhi"> Abdulrahman A. Alrajhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulfattah%20W.%20Alamri"> Abdulfattah W. Alamri</a>, <a href="https://publications.waset.org/abstracts/search?q=Adel%20F.%20Alothman"> Adel F. Alothman </a> </p> <p class="card-text"><strong>Abstract:</strong></p> We described the nosocomial transmission of a pre-XDR or an MDR case of pulmonary tuberculosis in a HIV negative health care worker in an area endemic for MDR & XDR tuberculosis. With inadequate therapy and non-compliance, his strain developed acquired resistance and he presented with extra-pulmonary XDR tuberculosis in the form of multi-focal osteomyelitis and encysted pleural effusion. He was cured after 2 years of therapy with various anti-tuberculous drugs in addition to interferon gamma. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=osteomyelitis" title="osteomyelitis">osteomyelitis</a>, <a href="https://publications.waset.org/abstracts/search?q=treatment" title=" treatment"> treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=XDR%20tuberculosis" title=" XDR tuberculosis"> XDR tuberculosis</a>, <a href="https://publications.waset.org/abstracts/search?q=successful%20treatment" title=" successful treatment"> successful treatment</a> </p> <a href="https://publications.waset.org/abstracts/23829/successful-treatment-of-multifocal-xdr-tuberculosis-osteomyelitis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23829.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">481</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">181</span> Morphological Characteristic of Hybrid Thin Films</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Azyuni%20Aziz">Azyuni Aziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Syed%20A.%20Malik"> Syed A. Malik</a>, <a href="https://publications.waset.org/abstracts/search?q=Shahrul%20Kadri%20Ayop"> Shahrul Kadri Ayop</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatin%20Hana%20Naning"> Fatin Hana Naning</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Currently, organic-inorganic hybrid thin films have attracted researchers to explore them, where these thin films can give a lot of benefits. Hybrid thin films are thin films that consist of inorganic and organic materials. Inorganic and organic materials give high efficiency and low manufacturing cost in some applications such as solar cells application, furthermore, organic materials are environment-friendly. In this study, poly (3-hexylthiophene) was choosing as organic material which combined with inorganic nanoparticles, Cadmium Sulfide (CdS) quantum dots. Samples were prepared using new technique, Angle Lifting Deposition (ALD) at different weight percentage. All prepared samples were then characterized by Field Emission Scanning Electron Microscopy (FESEM) with Energy-dispersive X-ray spectroscopy (EDX) and Atomic Force Microscopy (AFM) to study surface of samples and determine their surface roughness. Results show that these inorganic nanoparticles have affected the surface of samples and surface roughness of samples increased due to increasing of weight percentage of CdS in the thin films samples. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AFM" title="AFM">AFM</a>, <a href="https://publications.waset.org/abstracts/search?q=CdS" title=" CdS"> CdS</a>, <a href="https://publications.waset.org/abstracts/search?q=FESEM-EDX" title=" FESEM-EDX"> FESEM-EDX</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20thin%20films" title=" hybrid thin films"> hybrid thin films</a>, <a href="https://publications.waset.org/abstracts/search?q=P3HT" title=" P3HT"> P3HT</a> </p> <a href="https://publications.waset.org/abstracts/17329/morphological-characteristic-of-hybrid-thin-films" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17329.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">502</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">180</span> Effects of X and + Tail-Body Configurations on Hydrodynamic Performance and Stability of an Underwater Vehicle</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kadri%20Ko%C3%A7er">Kadri Koçer</a>, <a href="https://publications.waset.org/abstracts/search?q=Sezer%20Kefeli"> Sezer Kefeli</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper proposes a comparison of hydrodynamic performance and stability characteristic for an underwater vehicle which has two type of tail design, namely X and +tail-body configurations. The effects of these configurations on the underwater vehicle’s hydrodynamic performance and maneuvering characteristic will be investigated comprehensively. Hydrodynamic damping coefficients for modeling the motion of the underwater vehicles will be predicted. Additionally, forces and moments due to control surfaces will be compared using computational fluid dynamics methods. In the aviation, the X tail-body configuration is widely used for high maneuverability requirements. However, in the underwater, the + tail-body configuration is more commonly used than the X tail-body configuration for its stability characteristics. Thus it is important to see the effect and differences of the tail designs in the underwater world. For CFD analysis, the incompressible, three-dimensional, and steady Navier-Stokes equations will be used to simulate the flows. Also, k-ε Realizable turbulence model with enhanced wall treatment will be taken. Numerical results is verified with experimental results for verification. The overall goal of this study is to present the advantages and disadvantages of hydrodynamic performance and stability characteristic for X and + tail-body configurations of the underwater vehicle. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=maneuverability" title="maneuverability">maneuverability</a>, <a href="https://publications.waset.org/abstracts/search?q=stability" title=" stability"> stability</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=tail%20configuration" title=" tail configuration"> tail configuration</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrodynamic%20design" title=" hydrodynamic design"> hydrodynamic design</a> </p> <a href="https://publications.waset.org/abstracts/144684/effects-of-x-and-tail-body-configurations-on-hydrodynamic-performance-and-stability-of-an-underwater-vehicle" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/144684.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">184</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">179</span> Design, Synthesis and in-vitro Antitumor Evaluation of Some Novel Substituted Quinazoline Derivatives</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adel%20S.%20El-Azab">Adel S. El-Azab</a>, <a href="https://publications.waset.org/abstracts/search?q=Alaa%20A.%20M.%20Abdel-Aziz"> Alaa A. M. Abdel-Aziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20A.%20Al-Suwaidan"> Ibrahim A. Al-Suwaidan</a>, <a href="https://publications.waset.org/abstracts/search?q=Amer%20M.%20Alanazi"> Amer M. Alanazi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A novel series of 2,3,6-trisubstitute quinazolinone were designed, synthesized, and evaluated for their in-vitro antitumor activity. 3 (Benzylideneamino)-6-chloro-2-p-tolylquinazolin-4(3H)-One, 2-[(4-oxo-3-phenethyl-3,4-dihydroquinazolin-2-yl)thio]-N-(3,4;5-trimethoxyphenyl) acetamide and 3-(3-benzyl-6-methyl-4-oxo-3, 4-dihydroquinazolin-2-ylthio)-N-(3,4,5-trimethoxyphenyl) propanamide have shown amazing broad spectrum antitumor activity with mean GI50; 15.8, 3.16, and 7.4 μM respectively compared to known Quinazoline Derivatives antitumor drug 5-FU mean GI50=22.6 μM. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=quinazoline%20derivatives" title="quinazoline derivatives">quinazoline derivatives</a>, <a href="https://publications.waset.org/abstracts/search?q=in%20vitro%20antitumor" title=" in vitro antitumor"> in vitro antitumor</a>, <a href="https://publications.waset.org/abstracts/search?q=synthesis" title=" synthesis"> synthesis</a>, <a href="https://publications.waset.org/abstracts/search?q=5-FU" title=" 5-FU"> 5-FU</a>, <a href="https://publications.waset.org/abstracts/search?q=NCI" title=" NCI"> NCI</a> </p> <a href="https://publications.waset.org/abstracts/22501/design-synthesis-and-in-vitro-antitumor-evaluation-of-some-novel-substituted-quinazoline-derivatives" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22501.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">544</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">178</span> Potential Energy Expectation Value for Lithium Excited State (1s2s3s)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khalil%20H.%20Al-Bayati">Khalil H. Al-Bayati</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20Nasma"> G. Nasma</a>, <a href="https://publications.waset.org/abstracts/search?q=Hussein%20Ban%20H.%20Adel"> Hussein Ban H. Adel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of the present work is to calculate the expectation value of potential energy <V> for different spin states (ααα ≡ βββ, αβα ≡ βαβ) and compare it with spin states (αββ, ααβ ) for lithium excited state (1s2s3s) and Li-like ions (Be+, B+2) using Hartree-Fock wave function by partitioning technique. The result of inter particle expectation value shows linear behaviour with atomic number and for each atom and ion the <V> shows the trend ααα < ααβ < αββ < αβα. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=lithium%20excited%20state" title="lithium excited state">lithium excited state</a>, <a href="https://publications.waset.org/abstracts/search?q=potential%20energy" title=" potential energy"> potential energy</a>, <a href="https://publications.waset.org/abstracts/search?q=1s2s3s" title=" 1s2s3s"> 1s2s3s</a>, <a href="https://publications.waset.org/abstracts/search?q=mathematical%20physics" title=" mathematical physics "> mathematical physics </a> </p> <a href="https://publications.waset.org/abstracts/5085/potential-energy-expectation-value-for-lithium-excited-state-1s2s3s" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5085.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">489</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">177</span> Saudi Twitter Corpus for Sentiment Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adel%20Assiri">Adel Assiri</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Emam"> Ahmed Emam</a>, <a href="https://publications.waset.org/abstracts/search?q=Hmood%20Al-Dossari"> Hmood Al-Dossari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Sentiment analysis (SA) has received growing attention in Arabic language research. However, few studies have yet to directly apply SA to Arabic due to lack of a publicly available dataset for this language. This paper partially bridges this gap due to its focus on one of the Arabic dialects which is the Saudi dialect. This paper presents annotated data set of 4700 for Saudi dialect sentiment analysis with (K= 0.807). Our next work is to extend this corpus and creation a large-scale lexicon for Saudi dialect from the corpus. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Arabic" title="Arabic">Arabic</a>, <a href="https://publications.waset.org/abstracts/search?q=sentiment%20analysis" title=" sentiment analysis"> sentiment analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=Twitter" title=" Twitter"> Twitter</a>, <a href="https://publications.waset.org/abstracts/search?q=annotation" title=" annotation"> annotation</a> </p> <a href="https://publications.waset.org/abstracts/44819/saudi-twitter-corpus-for-sentiment-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44819.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">630</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">176</span> Types of Feedback and Their Effectiveness in an EFL Context in Iran</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adel%20Ebrahimpourtaher">Adel Ebrahimpourtaher</a>, <a href="https://publications.waset.org/abstracts/search?q=Saeede%20Eisaie"> Saeede Eisaie</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was an attempt to investigate the types of feedback most frequently provided to the students and their effectiveness based on the students’ preferences established through the interview conducted after the treatment. For this purpose, some class sessions of the students of the institute who were studying general English (pre-intermediate level) were recorded by the teacher for the analysis of the feed backs. The results of the analysis and transcriptions indicated that recast is the most frequent feedback type used by the teacher. In addition, the interview indicated that most of the students prefer recast as well as elicitation and explicit correction to some extent. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=EFL" title="EFL">EFL</a>, <a href="https://publications.waset.org/abstracts/search?q=elicitation" title=" elicitation"> elicitation</a>, <a href="https://publications.waset.org/abstracts/search?q=explicit" title=" explicit"> explicit</a>, <a href="https://publications.waset.org/abstracts/search?q=recast" title=" recast"> recast</a>, <a href="https://publications.waset.org/abstracts/search?q=feedback" title=" feedback"> feedback</a> </p> <a href="https://publications.waset.org/abstracts/31817/types-of-feedback-and-their-effectiveness-in-an-efl-context-in-iran" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31817.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">365</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">175</span> The Effect of Supplementary Cementitious Materials on Fresh and Hardened Properties of Self-Compacting Concretes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Akram%20Salah%20Eddine%20Belaidi">Akram Salah Eddine Belaidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Said%20Kenai"> Said Kenai</a>, <a href="https://publications.waset.org/abstracts/search?q=El-Hadj%20Kadri"> El-Hadj Kadri</a>, <a href="https://publications.waset.org/abstracts/search?q=Bencha%C3%A2%20Benabed"> Benchaâ Benabed</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamza%20Soualhi"> Hamza Soualhi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Self-compacting concrete (SCC) was developed in the middle of the 1980’s in Japan. SCC flows alone under its dead weight and consolidates itself without any entry of additional compaction energy and without segregation. As an integral part of a SCC, self-compacting mortars (SCM) may serve as a basis for the mix design of concrete since the measurement of the rheological properties of SCCs. This paper discusses the effect of using natural pozzolana (PZ) and marble powder (MP) in two alternative systems ratios PZ/MP = 1 and 1/3 of the performance of the SCC. A total of 11 SCC’s were prepared having a constant water-binder (w/b) ratio of 0.40 and total cementitious materials content of 475 kg/m3. Then, the fresh properties of the mortars were tested for mini-slump flow diameter and mini-V-funnel flow time for SCMs and Slumps flow test, L-Box height ratio, V-Funnel flow time and sieve stability for SCC. Moreover, the development in the compressive strength was determined at 3, 7, 28, 56, and 90 days. Test results have shown that using of ternary blends improved the fresh properties of the mixtures. The compressive strength of SCC at 90 days with 30% of PZ and MP was similar to those of ordinary concrete use in situ. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=self-compacting%20mortar" title="self-compacting mortar">self-compacting mortar</a>, <a href="https://publications.waset.org/abstracts/search?q=self-compacting%20concrete" title=" self-compacting concrete"> self-compacting concrete</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20pozzolana" title=" natural pozzolana"> natural pozzolana</a>, <a href="https://publications.waset.org/abstracts/search?q=marble%20powder" title=" marble powder"> marble powder</a>, <a href="https://publications.waset.org/abstracts/search?q=rheology" title=" rheology"> rheology</a>, <a href="https://publications.waset.org/abstracts/search?q=compressive%20strength" title=" compressive strength"> compressive strength</a> </p> <a href="https://publications.waset.org/abstracts/14200/the-effect-of-supplementary-cementitious-materials-on-fresh-and-hardened-properties-of-self-compacting-concretes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14200.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">375</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">174</span> On the Efficiency of the Algerian FRR Sovereign Fund</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelkader%20Guendouz">Abdelkader Guendouz</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatima%20Zohra%20Adel"> Fatima Zohra Adel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Since about two decades, the Algerian government created a new instrument in the field of its fiscal policy, which is the FRR (Fonds de Régulation des Recettes). The FRR is a sovereign fund, which the initial role was saving the surplus generated by the fixation of a referential oil price to establish the state budget in the aim equilibrium between budgetary incomes and public expenditures. After a while, the government turns to use this instrument in boosting the public investment more than keeping for funding a deficit budget in periods of crisis. This lead to ask some justified questions about the efficiency of this sovereign fund and its real role. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=FRR%20sovereign%20fund" title="FRR sovereign fund">FRR sovereign fund</a>, <a href="https://publications.waset.org/abstracts/search?q=public%20expenditures" title=" public expenditures"> public expenditures</a>, <a href="https://publications.waset.org/abstracts/search?q=public%20investment" title=" public investment"> public investment</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency" title=" efficiency"> efficiency</a> </p> <a href="https://publications.waset.org/abstracts/33582/on-the-efficiency-of-the-algerian-frr-sovereign-fund" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33582.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">337</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">173</span> Static Study of Piezoelectric Bimorph Beams with Delamination Zone</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zemirline%20Adel">Zemirline Adel</a>, <a href="https://publications.waset.org/abstracts/search?q=Ouali%20Mohammed"> Ouali Mohammed</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahieddine%20Ali"> Mahieddine Ali </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The FOSDT (First Order Shear Deformation Theory) is taking into consideration to study the static behavior of a bimorph beam, with a delamination zone between the upper and the lower layer. The effect of limit conditions and lengths of the delamination zone are presented in this paper, with a PVDF piezoelectric material application. A FEM “Finite Element Method” is used to discretize the beam. In the axial displacement, a displacement field appears in the debonded zone with inverse effect between the upper and the lower layer was observed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=static" title="static">static</a>, <a href="https://publications.waset.org/abstracts/search?q=piezoelectricity" title=" piezoelectricity"> piezoelectricity</a>, <a href="https://publications.waset.org/abstracts/search?q=beam" title=" beam"> beam</a>, <a href="https://publications.waset.org/abstracts/search?q=delamination" title=" delamination"> delamination</a> </p> <a href="https://publications.waset.org/abstracts/20773/static-study-of-piezoelectric-bimorph-beams-with-delamination-zone" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20773.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">418</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">172</span> Understand the Concept of Agility for the Manufacturing SMEs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adel%20H.%20Hejaaji">Adel H. Hejaaji</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The need for organisations to be flexible to meet the rapidly changing requirements of their customers is now well appreciated and can be witnessed within companies with their use of techniques such as single-minute exchange of die (SMED) for machine change-over or Kanban as the visual production and inventory control for Just-in-time manufacture and delivery. What is not so well appreciated by companies is the need for agility. Put simply it is the need to be alert for a new and unexpected opportunity and quick to respond with the changes necessary in order to profit from it. This paper aims to study the literature of agility in manufacturing to understand the concept of agility and how it is important and critical for the small and medium size manufacturing organisations (SMEs), and to defined the specific benefits of moving towards agility, and thus what benefit it can bring to an organisation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=SMEs" title="SMEs">SMEs</a>, <a href="https://publications.waset.org/abstracts/search?q=agile%20manufacturing" title=" agile manufacturing"> agile manufacturing</a>, <a href="https://publications.waset.org/abstracts/search?q=manufacturing" title=" manufacturing"> manufacturing</a>, <a href="https://publications.waset.org/abstracts/search?q=industrial%20engineering" title=" industrial engineering "> industrial engineering </a> </p> <a href="https://publications.waset.org/abstracts/16546/understand-the-concept-of-agility-for-the-manufacturing-smes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16546.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">606</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">171</span> Design of a Rectifier with Enhanced Efficiency and a High-gain Antenna for Integrated and Compact-size Rectenna Circuit</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rawaa%20Maher">Rawaa Maher</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Allam"> Ahmed Allam</a>, <a href="https://publications.waset.org/abstracts/search?q=Haruichi%20Kanaya"> Haruichi Kanaya</a>, <a href="https://publications.waset.org/abstracts/search?q=Adel%20B.%20Abdelrahman"> Adel B. Abdelrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a compact, high-efficiency integrated rectenna is presented to operate in the 2.45 GHz band. A comparison between two rectifier topologies is performed to verify the benefits of removing the matching network from the rectifier. A rectifier high conversion efficiency of 74.1% is achieved. To complete the rectenna system, a novel omnidirectional antenna with high gain (3.72 dB) and compact size (25 mm * 29 mm) is designed and fabricated. The same antenna is used with a reflector for raising the gain to nearly 8.3 dB. The simulation and measurement results of the antenna are in good agreement. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=internet%20of%20things" title="internet of things">internet of things</a>, <a href="https://publications.waset.org/abstracts/search?q=integrated%20rectenna" title=" integrated rectenna"> integrated rectenna</a>, <a href="https://publications.waset.org/abstracts/search?q=rectenna" title=" rectenna"> rectenna</a>, <a href="https://publications.waset.org/abstracts/search?q=RF%20energy%20harvesting" title=" RF energy harvesting"> RF energy harvesting</a>, <a href="https://publications.waset.org/abstracts/search?q=wireless%20sensor%20networks%28WSN%29" title=" wireless sensor networks(WSN)"> wireless sensor networks(WSN)</a> </p> <a href="https://publications.waset.org/abstracts/146075/design-of-a-rectifier-with-enhanced-efficiency-and-a-high-gain-antenna-for-integrated-and-compact-size-rectenna-circuit" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/146075.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">182</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">170</span> Compact Ultra-Wideband Printed Monopole Antenna with Inverted L-Shaped Slots for Data Communication and RF Energy Harvesting</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Adel%20Sennouni">Mohamed Adel Sennouni</a>, <a href="https://publications.waset.org/abstracts/search?q=Jamal%20Zbitou"> Jamal Zbitou</a>, <a href="https://publications.waset.org/abstracts/search?q=Benaissa%20Abboud"> Benaissa Abboud</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelwahed%20Tribak"> Abdelwahed Tribak</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamid%20Bennis"> Hamid Bennis</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Latrach"> Mohamed Latrach </a> </p> <p class="card-text"><strong>Abstract:</strong></p> A compact UWB planar antenna fed with a microstrip-line is proposed. The new design is composed of a rectangular patch with symmetric L-shaped slots and fed by 50 Ω microstrip transmission line and a reduced ground-plane which have a periodic slots with an overall size of 47 mm x 20 mm. It is intended to be used in wireless applications that cover the ultra-wideband (UWB) frequency band. A wider impedance bandwidth of around 116.5% (1.875 <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=UWB%20planar%20antenna" title="UWB planar antenna">UWB planar antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=L-shaped%20slots" title=" L-shaped slots"> L-shaped slots</a>, <a href="https://publications.waset.org/abstracts/search?q=wireless%20applications" title=" wireless applications"> wireless applications</a>, <a href="https://publications.waset.org/abstracts/search?q=impedance%20band-width" title=" impedance band-width"> impedance band-width</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation%20pattern" title=" radiation pattern"> radiation pattern</a>, <a href="https://publications.waset.org/abstracts/search?q=CST" title=" CST"> CST</a> </p> <a href="https://publications.waset.org/abstracts/16119/compact-ultra-wideband-printed-monopole-antenna-with-inverted-l-shaped-slots-for-data-communication-and-rf-energy-harvesting" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16119.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">487</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">169</span> High Voltage Magnetic Pulse Generation Using Capacitor Discharge Technique</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Adel%20Abdallah">Mohamed Adel Abdallah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A high voltage magnetic pulse is designed by applying an electrical pulse to the coil. Capacitor banks are developed to generate a pulse current. Switching circuit consisting of DPDT switches, thyristor, and triggering circuit is built and tested. The coil current is measured using a Hall-effect current sensor. The magnetic pulse created is measured and tabulated in the graph. Simulation using FEMM is done to compare the results obtained between experiment and simulation. This technology can be applied to area such as medical equipment, measuring instrument, and military equipment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=high%20voltage" title="high voltage">high voltage</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20pulse" title=" magnetic pulse"> magnetic pulse</a>, <a href="https://publications.waset.org/abstracts/search?q=capacitor%20discharge" title=" capacitor discharge"> capacitor discharge</a>, <a href="https://publications.waset.org/abstracts/search?q=coil" title=" coil"> coil</a> </p> <a href="https://publications.waset.org/abstracts/18438/high-voltage-magnetic-pulse-generation-using-capacitor-discharge-technique" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18438.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">680</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">168</span> Dynamic Study of a Two Phase Thermosyphon Loop</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Selva%20Georgena%20D.">Selva Georgena D.</a>, <a href="https://publications.waset.org/abstracts/search?q=Videcoq%20Etienne"> Videcoq Etienne</a>, <a href="https://publications.waset.org/abstracts/search?q=Caner%20Julien"> Caner Julien</a>, <a href="https://publications.waset.org/abstracts/search?q=Benselama%20Adel"> Benselama Adel</a>, <a href="https://publications.waset.org/abstracts/search?q=Girault%20Manu"> Girault Manu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A Two-Phase Thermosyphon Loop (TPTL) is a passive cooling system which does not require a pump to function. Therefore, TPTL is a simple and robust device and its physics is complex to describe because of the coupled phenomena: heat flux, nucleation, fluid dynamics and gravitational effects. Moreover, the dynamic behavior of TPTL shows some physical instabilities and the actual occurrence of such a behavior remains unknown. The aim of this study is to propose a thermal balance of the TPTL to better identify the fundamental reasons for the appearance of the instabilities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Two-phase%20flow" title="Two-phase flow">Two-phase flow</a>, <a href="https://publications.waset.org/abstracts/search?q=passive%20cooling%20system" title="passive cooling system">passive cooling system</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20reliability" title="thermal reliability">thermal reliability</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20experimental%20study" title="thermal experimental study">thermal experimental study</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid-vapor%20phase%20change" title="liquid-vapor phase change">liquid-vapor phase change</a> </p> <a href="https://publications.waset.org/abstracts/153983/dynamic-study-of-a-two-phase-thermosyphon-loop" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153983.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">112</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">167</span> Settlement of Group of Stone Columns</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adel%20Hanna">Adel Hanna</a>, <a href="https://publications.waset.org/abstracts/search?q=Tahar%20Ayadat"> Tahar Ayadat</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Etezad"> Mohammad Etezad</a>, <a href="https://publications.waset.org/abstracts/search?q=Cyrille%20Cros"> Cyrille Cros</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A number of theoretical methods have been developed over the years to calculate the amount settlement of the soil reinforced with group of stone columns. The results deduced from these methods sometimes show large disagreement with the experimental observations. The reason of this divergence might be due to the fact that many of the previous methods assumed the deform shape of the columns which is different with the actual case. A new method to calculate settlement of the ground reinforced with group of stone columns is presented in this paper which overcomes the restrictions made by previous theories. This method is based on results deduced from numerical modeling. Results obtained from the model are validated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=stone%20columns" title="stone columns">stone columns</a>, <a href="https://publications.waset.org/abstracts/search?q=group" title=" group"> group</a>, <a href="https://publications.waset.org/abstracts/search?q=soft%20soil" title=" soft soil"> soft soil</a>, <a href="https://publications.waset.org/abstracts/search?q=settlement" title=" settlement"> settlement</a>, <a href="https://publications.waset.org/abstracts/search?q=prediction" title=" prediction"> prediction</a> </p> <a href="https://publications.waset.org/abstracts/15458/settlement-of-group-of-stone-columns" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15458.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">505</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">166</span> Enhancing Rupture Pressure Prediction for Corroded Pipes Through Finite Element Optimization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Benkouiten%20Imene">Benkouiten Imene</a>, <a href="https://publications.waset.org/abstracts/search?q=Chabli%20Ouerdia"> Chabli Ouerdia</a>, <a href="https://publications.waset.org/abstracts/search?q=Boutoutaou%20Hamid"> Boutoutaou Hamid</a>, <a href="https://publications.waset.org/abstracts/search?q=Kadri%20Nesrine"> Kadri Nesrine</a>, <a href="https://publications.waset.org/abstracts/search?q=Bouledroua%20Omar"> Bouledroua Omar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Algeria is actively enhancing gas productivity by augmenting the supply flow. However, this effort has led to increased internal pressure, posing a potential risk to the pipeline's integrity, particularly in the presence of corrosion defects. Sonatrach relies on a vast network of pipelines spanning 24,000 kilometers for the transportation of gas and oil. The aging of these pipelines raises the likelihood of corrosion both internally and externally, heightening the risk of ruptures. To address this issue, a comprehensive inspection is imperative, utilizing specialized scraping tools. These advanced tools furnish a detailed assessment of all pipeline defects. It is essential to recalculate the pressure parameters to safeguard the corroded pipeline's integrity while ensuring the continuity of production. In this context, Sonatrach employs symbolic pressure limit calculations, such as ASME B31G (2009) and the modified ASME B31G (2012). The aim of this study is to perform a comparative analysis of various limit pressure calculation methods documented in the literature, namely DNV RP F-101, SHELL, P-CORRC, NETTO, and CSA Z662. This comparative assessment will be based on a dataset comprising 329 burst tests published in the literature. Ultimately, we intend to introduce a novel approach grounded in the finite element method, employing ANSYS software. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pipeline%20burst%20pressure" title="pipeline burst pressure">pipeline burst pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=burst%20test" title=" burst test"> burst test</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20defect" title=" corrosion defect"> corrosion defect</a>, <a href="https://publications.waset.org/abstracts/search?q=corroded%20pipeline" title=" corroded pipeline"> corroded pipeline</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20method" title=" finite element method"> finite element method</a> </p> <a href="https://publications.waset.org/abstracts/179892/enhancing-rupture-pressure-prediction-for-corroded-pipes-through-finite-element-optimization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/179892.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">58</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">165</span> Molecular Junctions between Graphene Strips: Electronic and Transport Properties</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adel%20Belayadi">Adel Belayadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Mougari"> Ahmed Mougari</a>, <a href="https://publications.waset.org/abstracts/search?q=Boualem%20Bourahla"> Boualem Bourahla</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Molecular junctions are currently considered a promising style in the miniaturization of electronic devices. In this contribution, we provide a tight-binding model to investigate the quantum transport properties across-molecular junctions sandwiched between 2D-graphene nanoribbons in the zigzag direction. We investigate, in particular, the effect of embedded atoms such as Gold and Silicon across the molecular junction. The results exhibit a resonance behavior in terms of incident Fermi levels, depending on the molecular junction type. Additionally, the transport properties under a perpendicular magnetic field exhibit an oscillation for the transmittance versus the magnetic field strength. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=molecular%20junction" title="molecular junction">molecular junction</a>, <a href="https://publications.waset.org/abstracts/search?q=2D-graphene%20nanoribbons" title=" 2D-graphene nanoribbons"> 2D-graphene nanoribbons</a>, <a href="https://publications.waset.org/abstracts/search?q=quantum%20transport%20properties" title=" quantum transport properties"> quantum transport properties</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20field" title=" magnetic field"> magnetic field</a> </p> <a href="https://publications.waset.org/abstracts/157729/molecular-junctions-between-graphene-strips-electronic-and-transport-properties" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/157729.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">96</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">164</span> Easy Method of Synthesis and Functionalzation of Zno Nanoparticules With 3 Aminopropylthrimethoxysilane (APTES)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Haythem%20Barrak">Haythem Barrak</a>, <a href="https://publications.waset.org/abstracts/search?q=Gaetan%20Laroche"> Gaetan Laroche</a>, <a href="https://publications.waset.org/abstracts/search?q=Adel%20M%E2%80%99nif"> Adel M’nif</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Hichem%20Hamzaoui"> Ahmed Hichem Hamzaoui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The use of semiconductor oxides, as chemical or biological, requires their functionalization with appropriate dependent molecules of the substance to be detected. generally, the support materials used are TiO2 and SiO2. In the present work, we used zinc oxide (ZnO) known for its interesting physical properties. The synthesis of nano scale ZnO was performed by co-precipitation at low temperature (60 ° C).To our knowledge, the obtaining of this material at this temperature was carried out for the first time. This shows the low cost of this operation. On the other hand, the surface functionalization of ZnO was performed with (3-aminopropyl) triethoxysilane (APTES) by using a specific method using ethanol for the first time. In addition, the duration of this stage is very low compared to literature. The samples obtained were analyzed by XRD, TEM, DLS, FTIR, and TGA shows that XPS that the operation of grafting of APTES on our support was carried out with success. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=functionalization" title="functionalization">functionalization</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticle" title=" nanoparticle"> nanoparticle</a>, <a href="https://publications.waset.org/abstracts/search?q=ZnO" title=" ZnO"> ZnO</a>, <a href="https://publications.waset.org/abstracts/search?q=APTES" title=" APTES"> APTES</a>, <a href="https://publications.waset.org/abstracts/search?q=caract%C3%A9risation" title=" caractérisation"> caractérisation</a> </p> <a href="https://publications.waset.org/abstracts/19409/easy-method-of-synthesis-and-functionalzation-of-zno-nanoparticules-with-3-aminopropylthrimethoxysilane-aptes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19409.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">361</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">163</span> A Spin and Valley Modulating Device in Grapheme heterostructure: Controlling Valley and Spin Current</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adel%20Belayadi">Adel Belayadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The investigation of two-dimensional (2D) heterostructures, whether in the presence or the absence of magnetic substrates that sustain several induced spin-orbit couplings, has shown a promising/essential application for advancing the emerging fields of spintronics and valleytronics. In this contribution, we study spin/valley transport in graphene-like substrates in the presence of one or several locally induced spin-orbit coupling (SOC) terms resulting from graphene-based heterostructures. The models we proposed are based on the tight-binding approach, and our findings imply an alternative approach for conducting valley-polarized currents and suggest a corresponding mechanism for valley-dependent electron optics and optoelectronic devices. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=graphene-heterostructures" title="graphene-heterostructures">graphene-heterostructures</a>, <a href="https://publications.waset.org/abstracts/search?q=tight%20binding%20pproch" title=" tight binding pproch"> tight binding pproch</a>, <a href="https://publications.waset.org/abstracts/search?q=Spintronics" title=" Spintronics"> Spintronics</a>, <a href="https://publications.waset.org/abstracts/search?q=Valleytronics" title=" Valleytronics"> Valleytronics</a> </p> <a href="https://publications.waset.org/abstracts/192032/a-spin-and-valley-modulating-device-in-grapheme-heterostructure-controlling-valley-and-spin-current" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/192032.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">25</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Adel%20Kadri&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Adel%20Kadri&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Adel%20Kadri&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Adel%20Kadri&page=5">5</a></li> <li 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