Search results for: Samanthika Liyanapathirana

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Liyanapathirana</title> <meta name="description" content="Search results for: Samanthika Liyanapathirana"> <meta name="keywords" content="Samanthika Liyanapathirana"> <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 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action="https://publications.waset.org/abstracts/search"> <div 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="Samanthika Liyanapathirana"> <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> 3</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Samanthika Liyanapathirana</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Enhancements to the Coupled Hydro-Mechanical Hypoplastic Model for Unsaturated Soils</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shanujah%20Mathuranayagam">Shanujah Mathuranayagam</a>, <a href="https://publications.waset.org/abstracts/search?q=William%20Fuentes"> William Fuentes</a>, <a href="https://publications.waset.org/abstracts/search?q=Samanthika%20Liyanapathirana"> Samanthika Liyanapathirana</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper introduces an enhanced version of the coupled hydro-mechanical hypoplastic model. The model is able to simulate volumetric collapse upon wetting and incorporates suction effects on stiffness and strength. Its mechanical constitutive equation links Bishop鈥檚 effective stress with strain and suction, featuring a normal consolidation line (NCL) with a compression index (位) presenting a non-linear dependency with the degree of saturation. The Bulk modulus has been modified to ensure that under rapid volumetric collapse, the stress state remains at the NCL. The coupled model comprises eighteen parameters, with nine for the hydraulic component and nine for the mechanical component. Hydraulic parameters are calibrated with the use of water retention curves (IWRC) across varied soil densities, while mechanical parameters undergo calibration using isotropic and triaxial tests on both unsaturated and saturated samples. The model's performance is analyzed through the back-calculation of two experimental studies: (i) wetting under different vertical stresses for Lower Cromer Till and (ii) isotropic loading and triaxial loading for undisturbed loess. The results confirm that the proposed model is able to predict the hydro-mechanical behavior of unsaturated soils. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hypoplastic%20model" title="hypoplastic model">hypoplastic model</a>, <a href="https://publications.waset.org/abstracts/search?q=volumetric%20collapse" title=" volumetric collapse"> volumetric collapse</a>, <a href="https://publications.waset.org/abstracts/search?q=normal%20consolidation%20line" title=" normal consolidation line"> normal consolidation line</a>, <a href="https://publications.waset.org/abstracts/search?q=compression%20index%20%28%CE%BB%29" title=" compression index (位)"> compression index (位)</a>, <a href="https://publications.waset.org/abstracts/search?q=degree%20of%20saturation" title=" degree of saturation"> degree of saturation</a>, <a href="https://publications.waset.org/abstracts/search?q=soil%20suction" title=" soil suction"> soil suction</a> </p> <a href="https://publications.waset.org/abstracts/183465/enhancements-to-the-coupled-hydro-mechanical-hypoplastic-model-for-unsaturated-soils" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/183465.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">64</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">2</span> Parametric Study on the Development of Earth Pressures Behind Integral Bridge Abutments Under Cyclic Translational Movements</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lila%20D.%20Sigdel">Lila D. Sigdel</a>, <a href="https://publications.waset.org/abstracts/search?q=Chin%20J.%20Leo"> Chin J. Leo</a>, <a href="https://publications.waset.org/abstracts/search?q=Samanthika%20Liyanapathirana"> Samanthika Liyanapathirana</a>, <a href="https://publications.waset.org/abstracts/search?q=Pan%20Hu"> Pan Hu</a>, <a href="https://publications.waset.org/abstracts/search?q=Minghao%20Lu"> Minghao Lu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Integral bridges are a class of bridges with integral or semi-integral abutments, designed without expansion joints in the bridge deck of the superstructure. Integral bridges are economical alternatives to conventional jointed bridges with lower maintenance costs and greater durability, thereby improving social and economic stability for the community. Integral bridges have also been proven to be effective in lowering the overall construction cost compared to the conventional type of bridges. However, there is significant uncertainty related to the design and analysis of integral bridges in response to cyclic thermal movements induced due to deck expansion and contraction. The cyclic thermal movements of the abutments increase the lateral earth pressures on the abutment and its foundation, leading to soil settlement and heaving of the backfill soil. Thus, the primary objective of this paper is to investigate the soil-abutment interaction under the cyclic translational movement of the abutment. Results from five experiments conducted to simulate different magnitudes of cyclic translational movements of abutments induced by thermal changes are presented, focusing on lateral earth pressure development at the abutment-soil interface. Test results show that the cycle number and magnitude of cyclic translational movements have significant effects on the escalation of lateral earth pressures. Experimentally observed earth pressure distributions behind the integral abutment were compared with the current design approaches, which shows that the most of the practices has under predicted the lateral earth pressure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=integral%20bridge" title="integral bridge">integral bridge</a>, <a href="https://publications.waset.org/abstracts/search?q=cyclic%20thermal%20movement" title=" cyclic thermal movement"> cyclic thermal movement</a>, <a href="https://publications.waset.org/abstracts/search?q=lateral%20earth%20pressure" title=" lateral earth pressure"> lateral earth pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=soil-structure%20interaction" title=" soil-structure interaction"> soil-structure interaction</a> </p> <a href="https://publications.waset.org/abstracts/152996/parametric-study-on-the-development-of-earth-pressures-behind-integral-bridge-abutments-under-cyclic-translational-movements" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152996.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">114</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">1</span> Application of Federated Learning in the Health Care Sector for Malware Detection and Mitigation Using Software-Defined Networking Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Dinelka%20Panagoda">A. Dinelka Panagoda</a>, <a href="https://publications.waset.org/abstracts/search?q=Bathiya%20Bandara"> Bathiya Bandara</a>, <a href="https://publications.waset.org/abstracts/search?q=Chamod%20Wijetunga"> Chamod Wijetunga</a>, <a href="https://publications.waset.org/abstracts/search?q=Chathura%20Malinda"> Chathura Malinda</a>, <a href="https://publications.waset.org/abstracts/search?q=Lakmal%20Rupasinghe"> Lakmal Rupasinghe</a>, <a href="https://publications.waset.org/abstracts/search?q=Chethana%20Liyanapathirana"> Chethana Liyanapathirana</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research takes us forward with the concepts of Federated Learning and Software-Defined Networking (SDN) to introduce an efficient malware detection technique and provide a mitigation mechanism to give birth to a resilient and automated healthcare sector network system by also adding the feature of extended privacy preservation. Due to the daily transformation of new malware attacks on hospital Integrated Clinical Environment (ICEs), the healthcare industry is at an undefinable peak of never knowing its continuity direction. The state of blindness by the array of indispensable opportunities that new medical device inventions and their connected coordination offer daily, a factor that should be focused driven is not yet entirely understood by most healthcare operators and patients. This solution has the involvement of four clients in the form of hospital networks to build up the federated learning experimentation architectural structure with different geographical participation to reach the most reasonable accuracy rate with privacy preservation. While the logistic regression with cross-entropy conveys the detection, SDN comes in handy in the second half of the research to stack up the initial development phases of the system with malware mitigation based on policy implementation. The overall evaluation sums up with a system that proves the accuracy with the added privacy. It is no longer needed to continue with traditional centralized systems that offer almost everything but not privacy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=software-defined%20network" title="software-defined network">software-defined network</a>, <a href="https://publications.waset.org/abstracts/search?q=federated%20learning" title=" federated learning"> federated learning</a>, <a href="https://publications.waset.org/abstracts/search?q=privacy" title=" privacy"> privacy</a>, <a href="https://publications.waset.org/abstracts/search?q=integrated%20clinical%20environment" title=" integrated clinical environment"> integrated clinical environment</a>, <a href="https://publications.waset.org/abstracts/search?q=decentralized%20learning" title=" decentralized learning"> decentralized learning</a>, <a href="https://publications.waset.org/abstracts/search?q=malware%20detection" title=" malware detection"> malware detection</a>, <a href="https://publications.waset.org/abstracts/search?q=malware%20mitigation" title=" malware mitigation"> malware mitigation</a> </p> <a href="https://publications.waset.org/abstracts/149784/application-of-federated-learning-in-the-health-care-sector-for-malware-detection-and-mitigation-using-software-defined-networking-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149784.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">187</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a 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Search results for: Samanthika Liyanapathirana