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dissipation</title> <meta name="description" content="Search results for: ATP dissipation"> <meta name="keywords" content="ATP dissipation"> <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 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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="ATP dissipation"> <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> 345</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: ATP dissipation</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">345</span> Boundary Motion by Curvature: Accessible Modeling of Oil Spill Evaporation/Dissipation </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gary%20Miller">Gary Miller</a>, <a href="https://publications.waset.org/abstracts/search?q=Andriy%20Didenko"> Andriy Didenko</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Allison"> David Allison</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The boundary of a region in the plane shrinks according to its curvature. A simple algorithm based upon this motion by curvature performed by a spreadsheet simulates the evaporation/dissipation behavior of oil spill boundaries. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mathematical%20modeling" title="mathematical modeling">mathematical modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=oil" title=" oil"> oil</a>, <a href="https://publications.waset.org/abstracts/search?q=evaporation" title=" evaporation"> evaporation</a>, <a href="https://publications.waset.org/abstracts/search?q=dissipation" title=" dissipation"> dissipation</a>, <a href="https://publications.waset.org/abstracts/search?q=boundary" title=" boundary"> boundary</a> </p> <a href="https://publications.waset.org/abstracts/13621/boundary-motion-by-curvature-accessible-modeling-of-oil-spill-evaporationdissipation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13621.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">510</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">344</span> Statistical Estimation of Ionospheric Energy Dissipation Using ØStgaard's Empirical Relation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20Ahmadu">M. A. Ahmadu</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20S.%20Rabia"> S. S. Rabia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> During the past few decades, energy dissipation in the ionosphere resulting from the geomagnetic activity has caused an increasing number of major disruptions of important power and communication services, malfunctions and loss of expensive facilities. Here, the electron precipitation energy, w(ep) and joule heating energy, w(jh) was used in the computation of this dissipation using Østgaard’s empirical relation from hourly geomagnetic indices of 2012, under the assumption that the magnetosphere does not store any energy, so that at the beginning of the activity t1=0 and end at t2=t, the statistical results obtained show that ionospheric dissipation varies month to month, day to day and hour to hour and estimated with a value ~3.6 w(ep), which is in agreement with experimental result. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ostgaard%27s" title="Ostgaard's">Ostgaard's</a>, <a href="https://publications.waset.org/abstracts/search?q=ionospheric%20dissipation" title=" ionospheric dissipation"> ionospheric dissipation</a>, <a href="https://publications.waset.org/abstracts/search?q=joule%20heating" title=" joule heating"> joule heating</a>, <a href="https://publications.waset.org/abstracts/search?q=electron%20precipitation" title=" electron precipitation"> electron precipitation</a>, <a href="https://publications.waset.org/abstracts/search?q=geomagnetic%20indices" title=" geomagnetic indices"> geomagnetic indices</a>, <a href="https://publications.waset.org/abstracts/search?q=empirical%20relation" title=" empirical relation"> empirical relation</a> </p> <a href="https://publications.waset.org/abstracts/49162/statistical-estimation-of-ionospheric-energy-dissipation-using-ostgaards-empirical-relation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49162.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">293</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">343</span> Dissipation of Tebuconazole in Cropland Soils as Affected by Soil Factors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bipul%20Behari%20Saha">Bipul Behari Saha</a>, <a href="https://publications.waset.org/abstracts/search?q=Sunil%20Kumar%20Singh"> Sunil Kumar Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Padmaja"> P. Padmaja</a>, <a href="https://publications.waset.org/abstracts/search?q=Kamlesh%20Vishwakarma"> Kamlesh Vishwakarma</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Dissipation study of tebuconazole in alluvial, black and deep-black clayey soils collected from paddy, mango and peanut cropland of tropical agro-climatic zone of India at three concentration levels were carried out for monitoring the water contamination through persisted residual toxicity. The soil-slurry samples were analyzed by capillary GC-NPD methods followed by ultrasound-assisted extraction (UAE) technique and cleanup process. An excellent linear relationship between peak area and concentration obtained in the range 1 to 50 μgkg-1. The detection (S/N, 3 ± 0.5) and quantification (S/N, 7.5 ± 2.5) limits were 3 and 10 μgkg-1 respectively. Well spiked recoveries were achieved from 96.28 to 99.33 % at levels 5 and 20 μgkg-1 and method precision (% RSD) was ≤ 5%. The soils dissipation of tebuconazole was fitted in first order kinetic-model with half-life between 34.48 to 48.13 days. The soil organic-carbon (SOC) content correlated well with the dissipation rate constants (DRC) of the fungicide Tebuconazole. An increase in the SOC content resulted in faster dissipation. The results indicate that the soil organic carbon and tebuconazole concentrations plays dominant role in dissipation processes. The initial concentration illustrated that the degradation rate of tebuconazole in soils was concentration dependent. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cropland%20soil" title="cropland soil">cropland soil</a>, <a href="https://publications.waset.org/abstracts/search?q=dissipation" title=" dissipation"> dissipation</a>, <a href="https://publications.waset.org/abstracts/search?q=laboratory%20incubation" title=" laboratory incubation"> laboratory incubation</a>, <a href="https://publications.waset.org/abstracts/search?q=tebuconazole" title=" tebuconazole"> tebuconazole</a> </p> <a href="https://publications.waset.org/abstracts/51929/dissipation-of-tebuconazole-in-cropland-soils-as-affected-by-soil-factors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51929.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">253</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">342</span> Improvement of Heat Dissipation Ability of Polyimide Composite Film</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jinyoung%20Kim">Jinyoung Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jinuk%20Kwon"> Jinuk Kwon</a>, <a href="https://publications.waset.org/abstracts/search?q=Haksoo%20Han"> Haksoo Han</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Polyimide is widely used in electronic industries, and heat dissipation of polyimide film is important for its application in electric devices for high-temperature resistance heat dissipation film. In this study, we demonstrated a new way to increase heat dissipating rate by adding carbon black as filler. This type of polyimide composite film was produced by pyromellitic dianhydride (PMDA) and 4,4’-oxydianiline (ODA). Carbon black (CB) is added in different loading, shows increasing heat dissipation rate for increase of Carbon black. The polyimide-carbon black composite film is synthesized with high dissipation rate to ~8W∙m−1K−1. Its high thermal decomposition temperature and glass transition temperature were maintained with carbon filler verified by thermogravimetric analysis (TGA) and differential scanning calorimetric (DSC), the polyimidization reaction of polyi(amide-mide) was confirmed by Fourier transform infrared spectroscopy (FT-IR). The polyimide composite film with carbon black with high heat dissipating rate could be used in various applications such as computers, mobile phone industries, integrated circuits, coating materials, semiconductor etc. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=polyimide" title="polyimide">polyimide</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20dissipation" title=" heat dissipation"> heat dissipation</a>, <a href="https://publications.waset.org/abstracts/search?q=electric%20device" title=" electric device"> electric device</a>, <a href="https://publications.waset.org/abstracts/search?q=filler" title=" filler"> filler</a> </p> <a href="https://publications.waset.org/abstracts/23358/improvement-of-heat-dissipation-ability-of-polyimide-composite-film" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23358.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">679</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">341</span> Study of Energy Dissipation in Shape Memory Alloys: A Comparison between Austenite and Martensite Phase of SMAs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amirmozafar%20Benshams">Amirmozafar Benshams</a>, <a href="https://publications.waset.org/abstracts/search?q=Khatere%20Kashmari"> Khatere Kashmari</a>, <a href="https://publications.waset.org/abstracts/search?q=Farzad%20Hatami"> Farzad Hatami</a>, <a href="https://publications.waset.org/abstracts/search?q=Mesbah%20Saybani"> Mesbah Saybani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Shape memory alloys with high capability of energy dissipation and large deformation bearing with return ability to their original shape without too much hysteresis strain have opened their place among the other damping systems as smart materials. Ninitol which is the most well-known and most used alloy material from the shape memory alloys family, has high resistance and fatigue and is coverage for large deformations. Shape memory effect and super-elasticity by shape alloys like Nitinol, are the reasons of the high power of these materials in energy depreciation. Thus, these materials are suitable for use in reciprocating dynamic loading conditions. The experiments results showed that Nitinol wires with small diameter have greater energy dissipation capability and by increase of diameter and thickness the damping capability and energy dissipation increase. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=shape%20memory%20alloys" title="shape memory alloys">shape memory alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=shape%20memory%20effect" title=" shape memory effect"> shape memory effect</a>, <a href="https://publications.waset.org/abstracts/search?q=super%20elastic%20effect" title=" super elastic effect"> super elastic effect</a>, <a href="https://publications.waset.org/abstracts/search?q=nitinol" title=" nitinol"> nitinol</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20dissipation" title=" energy dissipation"> energy dissipation</a> </p> <a href="https://publications.waset.org/abstracts/55075/study-of-energy-dissipation-in-shape-memory-alloys-a-comparison-between-austenite-and-martensite-phase-of-smas" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55075.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">515</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">340</span> Influence of Insulation System Methods on Dissipation Factor and Voltage Endurance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farzad%20Yavari">Farzad Yavari</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamid%20Chegini"> Hamid Chegini</a>, <a href="https://publications.waset.org/abstracts/search?q=Saeed%20Lotfi"> Saeed Lotfi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper reviews the comparison of Resin Rich (RR) and Vacuum Pressure Impregnation (VPI) insulation system qualities for stator bar of rotating electrical machines. Voltage endurance and tangent delta are two diagnostic tests to determine the quality of insulation systems. The paper describes the trend of dissipation factor while performing voltage endurance test for different stator bar samples made with RR and VPI insulation system methods. Some samples were made with the same strands and insulation thickness but with different main wall material to prove the influence of insulation system methods on stator bar quality. Also, some of the samples were subjected to voltage at the temperature of their insulation class, and their dissipation factor changes were measured and studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=VPI" title="VPI">VPI</a>, <a href="https://publications.waset.org/abstracts/search?q=resin%20rich" title=" resin rich"> resin rich</a>, <a href="https://publications.waset.org/abstracts/search?q=insulation" title=" insulation"> insulation</a>, <a href="https://publications.waset.org/abstracts/search?q=stator%20bar" title=" stator bar"> stator bar</a>, <a href="https://publications.waset.org/abstracts/search?q=dissipation%20factor" title=" dissipation factor"> dissipation factor</a>, <a href="https://publications.waset.org/abstracts/search?q=voltage%20endurance" title=" voltage endurance"> voltage endurance</a> </p> <a href="https://publications.waset.org/abstracts/104741/influence-of-insulation-system-methods-on-dissipation-factor-and-voltage-endurance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104741.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">198</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">339</span> Numerical Investigation of Al2O3/Water Nanofluid Heat Transfer in a Microtube with Viscous Dissipation Effect</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Misagh%20Irandoost%20Shahrestani">Misagh Irandoost Shahrestani</a>, <a href="https://publications.waset.org/abstracts/search?q=Hossein%20Shokouhmand"> Hossein Shokouhmand</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Kalteh"> Mohammad Kalteh</a>, <a href="https://publications.waset.org/abstracts/search?q=Behrang%20Hasanpour"> Behrang Hasanpour</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, nanofluid conjugate heat transfer through a microtube with viscous dissipation effect is investigated numerically. The fluid flow is considered as a laminar regime. A constant heat flux is applied on the microtube outer wall and the two ends of its wall are considered adiabatic. Conjugate heat transfer problem is solved and investigated for this geometry. It is shown that viscous dissipation effect which is induced by shear stresses can not be neglected in microtubes. Viscous heating behaves as an energy source in the fluid and affects the temperature distribution. The effect of Reynolds number, particle volume fraction and the nanoparticles diameter on the energy source are investigated and an attempt on establishing suitable equations for assessing the value of the energy source based on Re, Dp and Φ is performed and they are depicted as 3D diagrams. Finally, the significance of viscous dissipation and the influence of these parameters on convective heat transfer coefficient are studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=convective%20heat%20transfer%20coefficient" title="convective heat transfer coefficient">convective heat transfer coefficient</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=microtube" title=" microtube"> microtube</a>, <a href="https://publications.waset.org/abstracts/search?q=nanofluid" title=" nanofluid"> nanofluid</a>, <a href="https://publications.waset.org/abstracts/search?q=viscous%20dissipation" title=" viscous dissipation"> viscous dissipation</a> </p> <a href="https://publications.waset.org/abstracts/15475/numerical-investigation-of-al2o3water-nanofluid-heat-transfer-in-a-microtube-with-viscous-dissipation-effect" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15475.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">512</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">338</span> Seismic Performance of Various Grades of Steel Columns through Finite Element Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Asal%20Pournaghshband">Asal Pournaghshband</a>, <a href="https://publications.waset.org/abstracts/search?q=Roham%20Maher"> Roham Maher</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study presents a numerical analysis of the cyclic behavior of H-shaped steel columns, focusing on different steel grades, including austenitic, ferritic, duplex stainless steel, and carbon steel. Finite Element (FE) models were developed and validated against experimental data, demonstrating a predictive accuracy of up to 6.5%. The study examined key parameters such as energy dissipation and failure modes. Results indicate that duplex stainless steel offers the highest strength, with superior energy dissipation but a tendency for brittle failure at maximum strains of 0.149. Austenitic stainless steel demonstrated balanced performance with excellent ductility and energy dissipation, showing a maximum strain of 0.122, making it highly suitable for seismic applications. Ferritic stainless steel, while stronger than carbon steel, exhibited reduced ductility and energy absorption. Carbon steel displayed the lowest performance in terms of energy dissipation and ductility, with significant strain concentrations leading to earlier failure. These findings provide critical insights into optimizing material selection for earthquake-resistant structures, balancing strength, ductility, and energy dissipation under seismic conditions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=energy%20dissipation" title="energy dissipation">energy dissipation</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20analysis" title=" finite element analysis"> finite element analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=H-shaped%20columns" title=" H-shaped columns"> H-shaped columns</a>, <a href="https://publications.waset.org/abstracts/search?q=seismic%20performance" title=" seismic performance"> seismic performance</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel%20grades" title=" stainless steel grades"> stainless steel grades</a> </p> <a href="https://publications.waset.org/abstracts/191066/seismic-performance-of-various-grades-of-steel-columns-through-finite-element-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/191066.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">24</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">337</span> Zero-Dissipative Explicit Runge-Kutta Method for Periodic Initial Value Problems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Senu">N. Senu</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20A.%20Kasim"> I. A. Kasim</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Ismail"> F. Ismail</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Bachok"> N. Bachok</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper zero-dissipative explicit Runge-Kutta method is derived for solving second-order ordinary differential equations with periodical solutions. The phase-lag and dissipation properties for Runge-Kutta (RK) method are also discussed. The new method has algebraic order three with dissipation of order infinity. The numerical results for the new method are compared with existing method when solving the second-order differential equations with periodic solutions using constant step size. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dissipation" title="dissipation">dissipation</a>, <a href="https://publications.waset.org/abstracts/search?q=oscillatory%20solutions" title=" oscillatory solutions"> oscillatory solutions</a>, <a href="https://publications.waset.org/abstracts/search?q=phase-lag" title=" phase-lag"> phase-lag</a>, <a href="https://publications.waset.org/abstracts/search?q=Runge-Kutta%20methods" title=" Runge-Kutta methods "> Runge-Kutta methods </a> </p> <a href="https://publications.waset.org/abstracts/13272/zero-dissipative-explicit-runge-kutta-method-for-periodic-initial-value-problems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13272.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">411</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">336</span> Modelling of Polymeric Fluid Flows between Two Coaxial Cylinders Taking into Account the Heat Dissipation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexander%20Blokhin">Alexander Blokhin</a>, <a href="https://publications.waset.org/abstracts/search?q=Ekaterina%20Kruglova"> Ekaterina Kruglova</a>, <a href="https://publications.waset.org/abstracts/search?q=Boris%20Semisalov"> Boris Semisalov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mathematical model based on the mesoscopic theory of polymer dynamics is developed for numerical simulation of the flows of polymeric liquid between two coaxial cylinders. This model is a system of nonlinear partial differential equations written in the cylindrical coordinate system and coupled with the heat conduction equation including a specific dissipation term. The stationary flows similar to classical Poiseuille ones are considered, and the resolving equations for the velocity of flow and for the temperature are obtained. For solving them, a fast pseudospectral method is designed based on Chebyshev approximations, that enables one to simulate the flows through the channels with extremely small relative values of the radius of inner cylinder. The numerical analysis of the dependance of flow on this radius and on the values of dissipation constant is done. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dynamics%20of%20polymeric%20liquid" title="dynamics of polymeric liquid">dynamics of polymeric liquid</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20dissipation" title=" heat dissipation"> heat dissipation</a>, <a href="https://publications.waset.org/abstracts/search?q=singularly%20perturbed%20problem" title=" singularly perturbed problem"> singularly perturbed problem</a>, <a href="https://publications.waset.org/abstracts/search?q=pseudospectral%20method" title=" pseudospectral method"> pseudospectral method</a>, <a href="https://publications.waset.org/abstracts/search?q=Chebyshev%20polynomials" title=" Chebyshev polynomials"> Chebyshev polynomials</a>, <a href="https://publications.waset.org/abstracts/search?q=stabilization%20technique" title=" stabilization technique"> stabilization technique</a> </p> <a href="https://publications.waset.org/abstracts/85108/modelling-of-polymeric-fluid-flows-between-two-coaxial-cylinders-taking-into-account-the-heat-dissipation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85108.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">290</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">335</span> Effect of Viscous Dissipation on 3-D MHD Casson Flow in Presence of Chemical Reaction: A Numerical Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bandari%20Shanker">Bandari Shanker</a>, <a href="https://publications.waset.org/abstracts/search?q=Alfunsa%20Prathiba"> Alfunsa Prathiba</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The influence of viscous dissipation on MHD Casson 3-D fluid flow in two perpendicular directions past a linearly stretching sheet in the presence of a chemical reaction is explored in this work. For exceptional circumstances, self-similar solutions are obtained and compared to the given data. The enhancement in the values Ecert number the temperature boundary layer increases. Further, the current findings are observed to be in great accord with the existing data. In both directions, non - dimensional velocities and stress distribution are achieved. The relevant data are graphed and explained quantitatively in relation to changes in the Casson fluid parameter as well as other fluid flow parameters. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=viscous%20dissipation" title="viscous dissipation">viscous dissipation</a>, <a href="https://publications.waset.org/abstracts/search?q=3-D%20Casson%20flow" title=" 3-D Casson flow"> 3-D Casson flow</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20reaction" title=" chemical reaction"> chemical reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=Ecert%20number" title=" Ecert number"> Ecert number</a> </p> <a href="https://publications.waset.org/abstracts/144926/effect-of-viscous-dissipation-on-3-d-mhd-casson-flow-in-presence-of-chemical-reaction-a-numerical-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/144926.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">193</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">334</span> Effect of Viscous Dissipation and Axial Conduction in Thermally Developing Region of the Channel Partially Filled with a Porous Material Subjected to Constant Wall Heat Flux</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=D%20Bhargavi">D Bhargavi</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Sharath%20Kumar%20Reddy"> J. Sharath Kumar Reddy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present investigation has been undertaken to assess the effect of viscous dissipation and axial conduction on forced convection heat transfer in the entrance region of a parallel plate channel with the porous insert attached to both walls of the channel. The flow field is unidirectional. Flow in the porous region corresponds to Darcy-Brinkman model and the clear fluid region to that of plane Poiseuille flow. The effects of the parameters Darcy number, <em>Da</em>, Peclet number, <em>Pe</em>, Brinkman number, <em>Br</em> and a porous fraction <em>γ<sub>p</sub></em> on the local heat transfer coefficient are analyzed graphically. Effects of viscous dissipation employing the Darcy model and the clear fluid compatible model have been studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=porous%20material" title="porous material">porous material</a>, <a href="https://publications.waset.org/abstracts/search?q=channel%20partially%20filled%20with%20a%20porous%20material" title=" channel partially filled with a porous material"> channel partially filled with a porous material</a>, <a href="https://publications.waset.org/abstracts/search?q=axial%20conduction" title=" axial conduction"> axial conduction</a>, <a href="https://publications.waset.org/abstracts/search?q=viscous%20dissipation" title=" viscous dissipation"> viscous dissipation</a> </p> <a href="https://publications.waset.org/abstracts/114671/effect-of-viscous-dissipation-and-axial-conduction-in-thermally-developing-region-of-the-channel-partially-filled-with-a-porous-material-subjected-to-constant-wall-heat-flux" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/114671.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">159</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">333</span> Study on the Wave Dissipation Performance of Double-Cylinder and Double-Plate Floating Breakwater</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Liu%20Bijin">Liu Bijin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Floating breakwaters have several advantages, including being environmentally friendly, easy to construct, and cost-effective regardless of water depth. They have a broad range of applications in coastal engineering. However, they face significant challenges due to the unstable effect of wave dissipation, structural vulnerability, and high mooring system requirements. This paper investigates the wave dissipation performance of a floating breakwater structure. The structure consists of double cylinders, double vertical plates, and horizontal connecting plates. The investigation is carried out using physical model tests and numerical simulation methods based on STAR-CCM+. This paper discusses the impact of wave elements, relative vertical plate heights, and relative horizontal connecting plate widths on the wave dissipation performance of the double-cylinder, double-plate floating breakwater (DCDPFB). The study also analyses the changes in local vorticity and velocity fields around the DCDPFB to determine the optimal structural dimensions. The study found that the relative width of the horizontal connecting plate, the relative height of the vertical plate, and the size of the semi-cylinder are the key factors affecting the wave dissipation performance of the DCDPFB. The transmittance coefficient is minimally affected by the wave height and the depth of water entry. The local vortex and velocity field formed around the DCDPFB are important factors for dissipating wave energy. The test section of the DCDPFB, constructed according to the relative optimal structural dimensions, showed good wave dissipation performance during offshore prototype tests. The test section of DCDPFB, constructed with optimal structural dimensions, exhibits excellent wave dissipation performance in offshore prototype tests. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=floating%20breakwater" title="floating breakwater">floating breakwater</a>, <a href="https://publications.waset.org/abstracts/search?q=wave%20dissipation%20performance" title=" wave dissipation performance"> wave dissipation performance</a>, <a href="https://publications.waset.org/abstracts/search?q=transmittance%20coefficient" title=" transmittance coefficient"> transmittance coefficient</a>, <a href="https://publications.waset.org/abstracts/search?q=model%20test" title=" model test"> model test</a> </p> <a href="https://publications.waset.org/abstracts/185260/study-on-the-wave-dissipation-performance-of-double-cylinder-and-double-plate-floating-breakwater" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/185260.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">56</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">332</span> Comprehensive Experimental Study to Determine Energy Dissipation of Nappe Flows on Stepped Chutes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdollah%20Ghasempour">Abdollah Ghasempour</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Reza%20Kavianpour"> Mohammad Reza Kavianpour</a>, <a href="https://publications.waset.org/abstracts/search?q=Majid%20Galoie"> Majid Galoie</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study has investigated the fundamental parameters which have effective role on energy dissipation of nappe flows on stepped chutes in order to estimate an empirical relationship using dimensional analysis. To gain this goal, comprehensive experimental study on some large-scale physical models with various step geometries, slopes, discharges, etc. were carried out. For all models, hydraulic parameters such as velocity, pressure, water depth, flow regime and etc. were measured precisely. The effective parameters, then, could be determined by analysis of experimental data. Finally, a dimensional analysis was done in order to estimate an empirical relationship for evaluation of energy dissipation of nappe flows on stepped chutes. Because of using the large-scale physical models in this study, the empirical relationship is in very good agreement with the experimental results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nappe%20flow" title="nappe flow">nappe flow</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20dissipation" title=" energy dissipation"> energy dissipation</a>, <a href="https://publications.waset.org/abstracts/search?q=stepped%20chute" title=" stepped chute"> stepped chute</a>, <a href="https://publications.waset.org/abstracts/search?q=dimensional%20analysis" title=" dimensional analysis "> dimensional analysis </a> </p> <a href="https://publications.waset.org/abstracts/20115/comprehensive-experimental-study-to-determine-energy-dissipation-of-nappe-flows-on-stepped-chutes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20115.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">331</span> Numerical Analysis of the Effect of Height and Rate of Fluid Flow on a Stepped Spillway</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amir%20Abbas%20Kamanbedast">Amir Abbas Kamanbedast</a>, <a href="https://publications.waset.org/abstracts/search?q=Abbas%20Saki"> Abbas Saki </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Stepped spillways are composed of several steps, which start from around the spillway crest and continue to the downstream heel. Recently, such spillways have been receiving increasing attention due to the significant effect of the associated stairs on the flow’s rate of energy dissipation. Energy dissipation in the stepped spillways across the overflow can be explained by the watercourse contact with the stairs (i.e., large, harsh surfaces). In this context, less energy must be dissipated at the end of the spillway, and, hence, a smaller (less expensive) energy-dissipating structure is required. In this study, a stepped spillway was simulated using the model Fluent 3, and a standard model was used to model the flow disturbance. For this purpose, the energy dissipation from the stepped spillway was investigated in terms of the different numbers of stairs involved. Using k-ε, the disturbances of the numerical method for velocity and of flow depth at the downstream overflow were obtained, and, then, the energy that was dissipated throughout the spillway was calculated. Our results showed that an increase in the number of stairs can considerably increase the amount of energy dissipation for the fixed, upstream energy. In addition, the results of the numerical analyses were provided as isobar and velocity curves so points that were sensitive to cavitation could be determined. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=stepped%20spillway" title="stepped spillway">stepped spillway</a>, <a href="https://publications.waset.org/abstracts/search?q=fluent%20software" title=" fluent software"> fluent software</a>, <a href="https://publications.waset.org/abstracts/search?q=turbulence%20model%20of%20k-%CE%B5" title=" turbulence model of k-ε"> turbulence model of k-ε</a>, <a href="https://publications.waset.org/abstracts/search?q=VOF%20model" title=" VOF model"> VOF model</a> </p> <a href="https://publications.waset.org/abstracts/45509/numerical-analysis-of-the-effect-of-height-and-rate-of-fluid-flow-on-a-stepped-spillway" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45509.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">299</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">330</span> Bubbling in Gas Solids Fluidization at a Strouhal Number Tuned for Low Energy Dissipation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chenxi%20Zhang">Chenxi Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Weizhong%20Qian"> Weizhong Qian</a>, <a href="https://publications.waset.org/abstracts/search?q=Fei%20Wei"> Fei Wei</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Gas solids multiphase flow is common in many engineering and environmental applications. Turbulence and multiphase flows are two of the most challenging topics in fluid mechanics, and when combined they pose a formidable challenge, even in the dilute dispersed regime. Dimensionless numbers are important in mechanics because their constancy can imply dynamic similarity between systems, despite possible differences in medium or scale. In the fluid mechanics literature, the Strouhal number is usually associated with the dimensionless shedding frequency of a von Karman wake; here we introduce this dimensionless number to investigate bubbling in gas solids fluidization. St=fA/U, which divides stroke frequency (f) and amplitude (A) by forward speed (U). The bubble behavior in a large two-dimensional bubbling fluidized bed (500mm×30mm×6000mm) is investigated. Our result indicates that propulsive efficiency is high and energy dissipation is low over a narrow range of St and usually within the interval 0.2<St<0.4. Due to least-action principle, we expect it to constrain the range of St that bubbles use. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bubbles" title="bubbles">bubbles</a>, <a href="https://publications.waset.org/abstracts/search?q=Strouhal%20number" title=" Strouhal number"> Strouhal number</a>, <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=energy%20dissipation" title=" energy dissipation"> energy dissipation</a> </p> <a href="https://publications.waset.org/abstracts/45222/bubbling-in-gas-solids-fluidization-at-a-strouhal-number-tuned-for-low-energy-dissipation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45222.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">245</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">329</span> Effects of Viscous Dissipation on Free Convection Boundary Layer Flow towards a Horizontal Circular Cylinder </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Khairul%20Anuar%20Mohamed">Muhammad Khairul Anuar Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Zuki%20Salleh"> Mohd Zuki Salleh</a>, <a href="https://publications.waset.org/abstracts/search?q=Anuar%20Ishak"> Anuar Ishak</a>, <a href="https://publications.waset.org/abstracts/search?q=Nor%20Aida%20Zuraimi%20Md%20Noar"> Nor Aida Zuraimi Md Noar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the numerical investigation of viscous dissipation on convective boundary layer flow towards a horizontal circular cylinder with constant wall temperature is considered. The transformed partial differential equations are solved numerically by using an implicit finite-difference scheme known as the Keller-box method. Numerical solutions are obtained for the reduced Nusselt number and the skin friction coefficient as well as the velocity and temperature profiles. The features of the flow and heat transfer characteristics for various values of the Prandtl number and Eckert number are analyzed and discussed. The results in this paper is original and important for the researchers working in the area of boundary layer flow and this can be used as reference and also as complement comparison purpose in future. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=free%20convection" title="free convection">free convection</a>, <a href="https://publications.waset.org/abstracts/search?q=horizontal%20circular%20cylinder" title=" horizontal circular cylinder"> horizontal circular cylinder</a>, <a href="https://publications.waset.org/abstracts/search?q=viscous%20dissipation" title=" viscous dissipation"> viscous dissipation</a>, <a href="https://publications.waset.org/abstracts/search?q=convective%20boundary%20layer%20flow" title=" convective boundary layer flow"> convective boundary layer flow</a> </p> <a href="https://publications.waset.org/abstracts/21742/effects-of-viscous-dissipation-on-free-convection-boundary-layer-flow-towards-a-horizontal-circular-cylinder" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21742.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">439</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">328</span> An Improved Single Point Closure Model Based on Dissipation Anisotropy for Geophysical Turbulent Flows</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20P.%20Joshi">A. P. Joshi</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20V.%20Warrior"> H. V. Warrior</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20P.%20Panda"> J. P. Panda</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper is a continuation of the work carried out by various turbulence modelers in Oceanography on the topic of oceanic turbulent mixing. It evaluates the evolution of ocean water temperature and salinity by the appropriate modeling of turbulent mixing utilizing proper prescription of eddy viscosity. Many modelers in past have suggested including terms like shear, buoyancy and vorticity to be the parameters that decide the slow pressure strain correlation. We add to it the fact that dissipation anisotropy also modifies the correlation through eddy viscosity parameterization. This recalibrates the established correlation constants slightly and gives improved results. This anisotropization of dissipation implies that the critical Richardson’s number increases much beyond unity (to 1.66) to accommodate enhanced mixing, as is seen in reality. The model is run for a couple of test cases in the General Ocean Turbulence Model (GOTM) and the results are presented here. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anisotropy" title="Anisotropy">Anisotropy</a>, <a href="https://publications.waset.org/abstracts/search?q=GOTM" title=" GOTM"> GOTM</a>, <a href="https://publications.waset.org/abstracts/search?q=pressure-strain%20correlation" title=" pressure-strain correlation"> pressure-strain correlation</a>, <a href="https://publications.waset.org/abstracts/search?q=Richardson%20critical%20number" title=" Richardson critical number"> Richardson critical number</a> </p> <a href="https://publications.waset.org/abstracts/86660/an-improved-single-point-closure-model-based-on-dissipation-anisotropy-for-geophysical-turbulent-flows" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/86660.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">167</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">327</span> Numerical Modeling of Flow in USBR II Stilling Basin with End Adverse Slope</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamidreza%20Babaali">Hamidreza Babaali</a>, <a href="https://publications.waset.org/abstracts/search?q=Alireza%20Mojtahedi"> Alireza Mojtahedi</a>, <a href="https://publications.waset.org/abstracts/search?q=Nasim%20Soori"> Nasim Soori</a>, <a href="https://publications.waset.org/abstracts/search?q=Saba%20Soori"> Saba Soori</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Hydraulic jump is one of the effective ways of energy dissipation in stilling basins that the &lrm;energy is highly dissipated by jumping. Adverse slope surface at the end stilling basin is &lrm;caused to increase energy dissipation and stability of the hydraulic jump. In this study, the adverse slope &lrm;has been added to end of United States Bureau of Reclamation (USBR) II stilling basin in hydraulic model of Nazloochay dam with scale 1:40, and flow simulated into stilling basin using Flow-3D &lrm;software. The numerical model is verified by experimental data of water depth in &lrm;stilling basin. Then, the parameters of water level profile, Froude Number, pressure, air &lrm;entrainment and turbulent dissipation investigated for discharging 300 m<sup>3</sup>/s using K-Ɛ and Re-Normalization Group (RNG) turbulence &lrm;models. The results showed a good agreement between numerical and experimental model&lrm; as &lrm;numerical model can be used to optimize of stilling basins.&lrm; <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=experimental%20and%20numerical%20modelling" title="experimental and numerical modelling">experimental and numerical modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=end%20adverse%20slope" title=" end adverse slope"> end adverse slope</a>, <a href="https://publications.waset.org/abstracts/search?q=flow%20%E2%80%8Eparameters" title=" flow ‎parameters"> flow ‎parameters</a>, <a href="https://publications.waset.org/abstracts/search?q=USBR%20II%20stilling%20basin" title=" USBR II stilling basin"> USBR II stilling basin</a> </p> <a href="https://publications.waset.org/abstracts/93364/numerical-modeling-of-flow-in-usbr-ii-stilling-basin-with-end-adverse-slope" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/93364.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">179</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">326</span> Performance Evaluation of Reinforced Concrete Framed Structure with Steel Bracing and Supplemental Energy Dissipation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Swanand%20Patil">Swanand Patil</a>, <a href="https://publications.waset.org/abstracts/search?q=Pankaj%20Agarwal"> Pankaj Agarwal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In past few decades, seismic performance objectives have shifted from earthquake resistance to earthquake resilience of the structures, especially for the lifeline buildings. Features such as negligible post-earthquake damage and replaceable damaged components, makes energy dissipating systems a valid choice for a seismically resilient building. In this study, various energy dissipation devices are applied on an eight-storey moment resisting RC building model. The energy dissipating devices include both hysteresis-based and viscous type of devices. The seismic response of the building is obtained for different positioning and mechanical properties of the devices. The investigation is carried forward to the deficiently ductile RC frame also. The performance assessment is done on the basis of drift ratio, mode shapes and displacement response of the model structures. Nonlinear dynamic analysis shows largely improved displacement response. The damping devices improve displacement response more efficiently in the deficient ductile frames than that in the perfectly moment resisting frames. This finding is important considering the number of deficient buildings in India and the world. The placement and mechanical properties of the dampers prove to be a crucial part in modelling, analyzing and designing of the structures with supplemental energy dissipation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=earthquake%20resilient%20structures" title="earthquake resilient structures">earthquake resilient structures</a>, <a href="https://publications.waset.org/abstracts/search?q=lifeline%20buildings" title=" lifeline buildings"> lifeline buildings</a>, <a href="https://publications.waset.org/abstracts/search?q=retrofitting%20of%20structures" title=" retrofitting of structures"> retrofitting of structures</a>, <a href="https://publications.waset.org/abstracts/search?q=supplemental%20energy%20dissipation" title=" supplemental energy dissipation"> supplemental energy dissipation</a> </p> <a href="https://publications.waset.org/abstracts/57617/performance-evaluation-of-reinforced-concrete-framed-structure-with-steel-bracing-and-supplemental-energy-dissipation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57617.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">345</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">325</span> Magnetohydrodynamics (MHD) Boundary Layer Flow Past A Stretching Plate with Heat Transfer and Viscous Dissipation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jiya%20Mohammed">Jiya Mohammed</a>, <a href="https://publications.waset.org/abstracts/search?q=Tsadu%20Shuaib"> Tsadu Shuaib</a>, <a href="https://publications.waset.org/abstracts/search?q=Yusuf%20Abdulhakeem"> Yusuf Abdulhakeem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The research work focuses on the cases of MHD boundary layer flow past a stretching plate with heat transfer and viscous dissipation. The non-linear of momentum and energy equation are transform into ordinary differential equation by using similarity transformation, the resulting equation are solved using Adomian Decomposition Method (ADM). An attempt has been made to show the potentials and wide range application of the Adomian decomposition method in the comparison with the previous one in solving heat transfer problems. The Pade approximates value (η= 11[11, 11]) is use on the difficulty at infinity. The results are compared by numerical technique method. A vivid conclusion can be drawn from the results that ADM provides highly precise numerical solution for non-linear differential equations. The result where accurate especially for η ≤ 4, a general equating terms of Eckert number (Ec), Prandtl number (Pr) and magnetic parameter ( ) is derived which was used to investigate velocity and temperature profiles in boundary layer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=MHD" title="MHD">MHD</a>, <a href="https://publications.waset.org/abstracts/search?q=Adomian%20decomposition" title=" Adomian decomposition"> Adomian decomposition</a>, <a href="https://publications.waset.org/abstracts/search?q=boundary%20layer" title=" boundary layer"> boundary layer</a>, <a href="https://publications.waset.org/abstracts/search?q=viscous%20dissipation" title=" viscous dissipation"> viscous dissipation</a> </p> <a href="https://publications.waset.org/abstracts/27223/magnetohydrodynamics-mhd-boundary-layer-flow-past-a-stretching-plate-with-heat-transfer-and-viscous-dissipation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27223.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">551</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">324</span> Planckian Dissipation in Bi₂Sr₂Ca₂Cu₃O₁₀₋δ</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lalita">Lalita</a>, <a href="https://publications.waset.org/abstracts/search?q=Niladri%20Sarkar"> Niladri Sarkar</a>, <a href="https://publications.waset.org/abstracts/search?q=Subhasis%20Ghosh"> Subhasis Ghosh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Since the discovery of high temperature superconductivity (HTSC) in cuprates, several aspects of this phenomena have fascinated physics community. The most debated one is the linear temperature dependence of normal state resistivity over wide range of temperature in violation of with Fermi liquid theory. The linear-in-T resistivity (LITR) is the indication of strongly correlated metallic, known as “strange metal”, attributed to non Fermi liquid theory (NFL). The proximity of superconductivity to LITR suggests that there may be underlying common origin. The LITR has been shown to be due to unknown dissipative phenomena, restricted by quantum mechanics and commonly known as ‘‘Planckian dissipation” , the term first coined by Zaanen and the associated inelastic scattering time τ and given by 1/τ=αkBT/ℏ, where ℏ, kB and α are reduced Planck’s constant, Boltzmann constant and a dimensionless constant of order of unity, respectively. Since the first report, experimental support for α ~ 1 is appearing in literature. There are several striking issues which remain to be resolved if we desire to find out or at least get a clue towards microscopic origin of maximal dissipation in cuprates. (i) Universality of α ~ 1, recently some doubts have been raised in some cases. (ii) So far, Planckian dissipation has been demonstrated in overdoped Cuprates, but if the proximity to quantum criticality is important, then Planckian dissipation should be observed in optimally doped and marginally underdoped cuprates. The link between Planckian dissipation and quantum criticality still remains an open problem. (iii) Validity of Planckian dissipation in all cuprates is an important issue. Here, we report reversible change in the superconducting behavior of high temperature superconductor Bi2Sr2Ca2Cu3O10+δ (Bi-2223) under dynamic doping induced by photo-excitation. Two doped Bi-223 samples, which are x = 0.16 (optimal-doped), x = 0.145 (marginal-doped) have been used for this investigation. It is realized that steady state photo-excitation converts magnetic Cu2+ ions to nonmagnetic Cu1+ ions which reduces superconducting transition temperature (Tc) by killing superfluid density. In Bi-2223, one would expect the maximum of suppression of Tc should be at charge transfer gap. We have observed suppression of Tc starts at 2eV, which is the charge transfer gap in Bi-2223. We attribute this transition due to Cu-3d9(Cu2+) to Cu-3d10(Cu+), known as d9 − d10 L transition, photoexcitation makes some Cu ions in CuO2 planes as spinless non-magnetic potential perturbation as Zn2+ does in CuO2 plane in case Zn-doped cuprates. The resistivity varies linearly with temperature with or without photo-excitation. Tc can be varied by almost by 40K be photoexcitation. Superconductivity can be destroyed completely by introducing ≈ 2% of Cu1+ ions for this range of doping. With this controlled variation of Tc and resistivity, detailed investigation has been carried out to reveal Planckian dissipation underdoped to optimally doped Bi-2223. The most important aspect of this investigation is that we could vary Tc dynamically and reversibly, so that LITR and associated Planckian dissipation can be studied over wide ranges of Tc without changing the doping chemically. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=linear%20resistivity" title="linear resistivity">linear resistivity</a>, <a href="https://publications.waset.org/abstracts/search?q=HTSC" title=" HTSC"> HTSC</a>, <a href="https://publications.waset.org/abstracts/search?q=Planckian%20dissipation" title=" Planckian dissipation"> Planckian dissipation</a>, <a href="https://publications.waset.org/abstracts/search?q=strange%20metal" title=" strange metal"> strange metal</a> </p> <a href="https://publications.waset.org/abstracts/175541/planckian-dissipation-in-bi2sr2ca2cu3o10d" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/175541.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">60</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">323</span> Contribution at Dimensioning of the Energy Dissipation Basin</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Aouimeur">M. Aouimeur</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The environmental risks of a dam and particularly the security in the Valley downstream of it,, is a very complex problem. Integrated management and risk-sharing become more and more indispensable. The definition of "vulnerability “concept can provide assistance to controlling the efficiency of protective measures and the characterization of each valley relatively to the floods's risk. Security can be enhanced through the integrated land management. The social sciences may be associated to the operational systems of civil protection, in particular warning networks. The passage of extreme floods in the site of the dam causes the rupture of this structure and important damages downstream the dam. The river bed could be damaged by erosion if it is not well protected. Also, we may encounter some scouring and flooding problems in the downstream area of the dam. Therefore, the protection of the dam is crucial. It must have an energy dissipator in a specific place. The basin of dissipation plays a very important role for the security of the dam and the protection of the environment against floods downstream the dam. It allows to dissipate the potential energy created by the dam with the passage of the extreme flood on the weir and regularize in a natural manner and with more security the discharge or elevation of the water plan on the crest of the weir, also it permits to reduce the speed of the flow downstream the dam, in order to obtain an identical speed to the river bed. The problem of the dimensioning of a classic dissipation basin is in the determination of the necessary parameters for the dimensioning of this structure. This communication presents a simple graphical method, that is fast and complete, and a methodology which determines the main features of the hydraulic jump, necessary parameters for sizing the classic dissipation basin. This graphical method takes into account the constraints imposed by the reality of the terrain or the practice such as the one related to the topography of the site, the preservation of the environment equilibrium and the technical and economic side.This methodology is to impose the loss of head DH dissipated by the hydraulic jump as a hypothesis (free design) to determine all the others parameters of classical dissipation basin. We can impose the loss of head DH dissipated by the hydraulic jump that is equal to a selected value or to a certain percentage of the upstream total head created by the dam. With the parameter DH+ =(DH/k),(k: critical depth),the elaborate graphical representation allows to find the other parameters, the multiplication of these parameters by k gives the main characteristics of the hydraulic jump, necessary parameters for the dimensioning of classic dissipation basin.This solution is often preferred for sizing the dissipation basins of small concrete dams. The results verification and their comparison to practical data, confirm the validity and reliability of the elaborate graphical method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dimensioning" title="dimensioning">dimensioning</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20dissipation%20basin" title=" energy dissipation basin"> energy dissipation basin</a>, <a href="https://publications.waset.org/abstracts/search?q=hydraulic%20jump" title=" hydraulic jump"> hydraulic jump</a>, <a href="https://publications.waset.org/abstracts/search?q=protection%20of%20the%20environment" title=" protection of the environment"> protection of the environment</a> </p> <a href="https://publications.waset.org/abstracts/29898/contribution-at-dimensioning-of-the-energy-dissipation-basin" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29898.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">583</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">322</span> An Investigation of Vegetable Oils as Potential Insulating Liquid</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Celal%20Kocatepe">Celal Kocatepe</a>, <a href="https://publications.waset.org/abstracts/search?q=Eyup%20Taslak"> Eyup Taslak</a>, <a href="https://publications.waset.org/abstracts/search?q=Celal%20Fadil%20Kumru"> Celal Fadil Kumru</a>, <a href="https://publications.waset.org/abstracts/search?q=Oktay%20Arikan"> Oktay Arikan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> While choosing insulating oil, characteristic features such as thermal cooling, endurance, efficiency and being environment-friendly should be considered. Mineral oils are referred as petroleum-based oil. In this study, vegetable oils investigated as an alternative insulating liquid to mineral oil. Dissipation factor, breakdown voltage, relative dielectric constant and resistivity changes with the frequency and voltage of mineral, rapeseed and nut oils were measured. Experimental studies were performed according to ASTM D924 and IEC 60156 standards. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=breakdown%20voltage" title="breakdown voltage">breakdown voltage</a>, <a href="https://publications.waset.org/abstracts/search?q=dielectric%20dissipation%20factor" title=" dielectric dissipation factor"> dielectric dissipation factor</a>, <a href="https://publications.waset.org/abstracts/search?q=mineral%20oil" title=" mineral oil"> mineral oil</a>, <a href="https://publications.waset.org/abstracts/search?q=vegetable%20oils" title=" vegetable oils"> vegetable oils</a> </p> <a href="https://publications.waset.org/abstracts/35815/an-investigation-of-vegetable-oils-as-potential-insulating-liquid" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35815.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">693</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">321</span> Effects of Viscous Dissipation and Concentration Based Internal Heat Source on Convective Instability in A Porous Medium with Throughflow</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Deepika">N. Deepika</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20A.%20L.%20Narayana"> P. A. L. Narayana</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Linear stability analysis of double diffusive convection in a horizontal porous layer saturated with fluid is examined by considering the effects of viscous dissipation, concentration based internal heat source and vertical throughflow. The basic steady state solution for Governing equations is computed. Linear stability analysis has been implemented numerically by using Runge-kutta method. Critical thermal Rayleigh number Rac is obtained for various values of solutal Rayleigh number Sa, vertical Peclet number Pe, Gebhart number Ge, Lewis number Le and measure of concentration based internal heat source $\gamma$. It is observed that Ge has destabilizing effect for upward throughflow and stabilizing effect for downward throughflow. For sufficient value of Pe, $\gamma$ has considerable destabilizing effect for upward throughflow, insignificant destabilizing effect for downward throughflow. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=porous%20medium" title="porous medium">porous medium</a>, <a href="https://publications.waset.org/abstracts/search?q=concentration%20based%20internal%20heat%20source" title=" concentration based internal heat source"> concentration based internal heat source</a>, <a href="https://publications.waset.org/abstracts/search?q=vertical%20throughflow" title=" vertical throughflow"> vertical throughflow</a>, <a href="https://publications.waset.org/abstracts/search?q=viscous%20dissipation" title=" viscous dissipation"> viscous dissipation</a> </p> <a href="https://publications.waset.org/abstracts/24853/effects-of-viscous-dissipation-and-concentration-based-internal-heat-source-on-convective-instability-in-a-porous-medium-with-throughflow" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24853.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">461</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">320</span> Wave Interaction with Single and Twin Vertical and Sloped Porous Walls </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamad%20Alkhalidi">Mohamad Alkhalidi</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Neelamani"> S. Neelamani</a>, <a href="https://publications.waset.org/abstracts/search?q=Noor%20Alanjari"> Noor Alanjari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main purpose of harbors and marinas is to create a calm and safe docking space for marine vessels. Standard rubble mound breakwaters, although widely used, occupy port space and require large amounts of stones or rocks. Kuwait does not have good quality stone, so they are imported at a very high cost. Therefore, there is a need for a new wave energy dissipating structure where stones and rocks are scarce. While permeable slotted vertical walls have been proved to be a suitable alternative to rubble mound breakwaters, the introduction of sloped slotted walls may be more efficient in dissipating wave energy. For example, two slotted barriers with 60degree inclination may be equivalent to three vertical slotted barriers from wave energy dissipation point of view. A detailed physical model study is carried out to determine the effects of slope angle, porosity, and a number of walls on wave energy dissipation for a wide range of random and regular waves. The results of this study can be used to improve and optimize energy dissipation and reduce construction cost. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=porosity" title="porosity">porosity</a>, <a href="https://publications.waset.org/abstracts/search?q=slope" title=" slope"> slope</a>, <a href="https://publications.waset.org/abstracts/search?q=wave%20reflection" title=" wave reflection"> wave reflection</a>, <a href="https://publications.waset.org/abstracts/search?q=wave%20transmission" title=" wave transmission"> wave transmission</a> </p> <a href="https://publications.waset.org/abstracts/59353/wave-interaction-with-single-and-twin-vertical-and-sloped-porous-walls" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59353.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">290</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">319</span> Seismic Performance of Highway Bridges with Partially Self-Centering Isolation Bearings against Near-Fault Ground Motions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shengxin%20Yu">Shengxin Yu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Earthquakes can cause varying degrees of damage to building and bridge structures. Traditional laminated natural rubber bearings (NRB) exhibit inadequate energy dissipation and restraint, particularly under near-fault ground motions, resulting in excessive displacements in the superstructure. This paper presents a composite natural rubber bearing (NFUD-NRB) incorporating two types of shape memory alloy (SMA) U-shaped dampers (UD). The bearing exhibits adjustable features, predominantly characterized by partial self-centering and multi-level energy dissipation, facilitated by nickel-titanium-based SMA (NiTi-SMA) and iron-based SMA (Fe-SMA) UDs. The hysteresis characteristics of NFUD-NRB can be tailored by manipulating the configuration of NiTi-SMA and Fe-SMA UDs. Firstly, the proposed bearing's geometric configuration and working principle are introduced. The rationality of the modeling strategy for the bearing is validated through existing experimental results. Parameterized numerical simulations are subsequently performed to investigate the partially self-centering behavior of NFUD-NRB. The findings indicate that NFUD-NRB can attain the anticipated nonlinear behavior and deliver adequate energy dissipation. Finally, the impact of NFUD-NRB on improving the seismic resilience of highway bridges is examined using the OpenSees software, with particular emphasis on the seismic performance of NFUD-NRB under near-fault ground motions. System-level analysis reveals that bridge systems equipped with NFUD-NRBs exhibit satisfactory residual deformations and higher energy dissipation than those equipped with traditional NRBs. Moreover, NFUD-NRB markedly mitigates the detrimental impacts of near-fault ground motions on the main structure of bridges. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=partially%20self-centering%20behavior" title="partially self-centering behavior">partially self-centering behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20dissipation" title=" energy dissipation"> energy dissipation</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20rubber%20bearing" title=" natural rubber bearing"> natural rubber bearing</a>, <a href="https://publications.waset.org/abstracts/search?q=shape%20memory%20alloy" title=" shape memory alloy"> shape memory alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=U-shaped%20damper" title=" U-shaped damper"> U-shaped damper</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20investigation" title=" numerical investigation"> numerical investigation</a>, <a href="https://publications.waset.org/abstracts/search?q=near-fault%20ground%20motion" title=" near-fault ground motion"> near-fault ground motion</a> </p> <a href="https://publications.waset.org/abstracts/184070/seismic-performance-of-highway-bridges-with-partially-self-centering-isolation-bearings-against-near-fault-ground-motions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/184070.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">318</span> Offline High Voltage Diagnostic Test Findings on 15MVA Generator of Basochhu Hydropower Plant</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suprit%20Pradhan">Suprit Pradhan</a>, <a href="https://publications.waset.org/abstracts/search?q=Tshering%20Yangzom"> Tshering Yangzom</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Even with availability of the modern day online insulation diagnostic technologies like partial discharge monitoring, the measurements like Dissipation Factor (tanδ), DC High Voltage Insulation Currents, Polarization Index (PI) and Insulation Resistance Measurements are still widely used as a diagnostic tools to assess the condition of stator insulation in hydro power plants. To evaluate the condition of stator winding insulation in one of the generators that have been operated since 1999, diagnostic tests were performed on the stator bars of 15 MVA generators of Basochhu Hydropower Plant. This paper presents diagnostic study done on the data gathered from the measurements which were performed in 2015 and 2016 as part of regular maintenance as since its commissioning no proper aging data were maintained. Measurement results of Dissipation Factor, DC High Potential tests and Polarization Index are discussed with regard to their effectiveness in assessing the ageing condition of the stator insulation. After a brief review of the theoretical background, the strengths of each diagnostic method in detecting symptoms of insulation deterioration are identified. The interesting results observed from Basochhu Hydropower Plant is taken into consideration to conclude that Polarization Index and DC High Voltage Insulation current measurements are best suited for the detection of humidity and contamination problems and Dissipation Factor measurement is a robust indicator of long-term ageing caused by oxidative degradation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dissipation%20Factor%20%28tan%CE%B4%29" title="dissipation Factor (tanδ)">dissipation Factor (tanδ)</a>, <a href="https://publications.waset.org/abstracts/search?q=polarization%20Index%20%28PI%29" title=" polarization Index (PI)"> polarization Index (PI)</a>, <a href="https://publications.waset.org/abstracts/search?q=DC%20High%20Voltage%20Insulation%20Current" title=" DC High Voltage Insulation Current"> DC High Voltage Insulation Current</a>, <a href="https://publications.waset.org/abstracts/search?q=insulation%20resistance%20%28IR%29" title=" insulation resistance (IR)"> insulation resistance (IR)</a>, <a href="https://publications.waset.org/abstracts/search?q=Tan%20Delta%20Tip-Up" title=" Tan Delta Tip-Up"> Tan Delta Tip-Up</a>, <a href="https://publications.waset.org/abstracts/search?q=dielectric%20absorption%20ratio" title=" dielectric absorption ratio"> dielectric absorption ratio</a> </p> <a href="https://publications.waset.org/abstracts/53740/offline-high-voltage-diagnostic-test-findings-on-15mva-generator-of-basochhu-hydropower-plant" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53740.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">312</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">317</span> Electrical Analysis of Corn Oil as an Alternative to Mineral Oil in Power Transformers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=E.%20Taslak">E. Taslak</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20%20Kocatepe"> C. Kocatepe</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20Ar%C4%B1kan"> O. Arıkan</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20F.%20Kumru"> C. F. Kumru</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In insulation and cooling of power transformers various liquids are used. Mineral oils have wide availability and low cost. However, they have a poor biodegradability potential and lower fire point in comparison with other insulating liquids. Use of a liquid having high biodegradability is important due to environmental consideration. This paper investigates edible corn oil as an alternative to mineral oil. Various properties of mineral and corn oil like breakdown voltage, dissipation factor, relative dielectric constant, power loss and resistivity were measured according to different standards. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=breakdown%20voltage" title="breakdown voltage">breakdown voltage</a>, <a href="https://publications.waset.org/abstracts/search?q=corn%20oil" title=" corn oil"> corn oil</a>, <a href="https://publications.waset.org/abstracts/search?q=dissipation%20factor" title=" dissipation factor"> dissipation factor</a>, <a href="https://publications.waset.org/abstracts/search?q=mineral%20oil" title=" mineral oil"> mineral oil</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20loss" title=" power loss"> power loss</a>, <a href="https://publications.waset.org/abstracts/search?q=relative%20dielectric%20constant" title=" relative dielectric constant"> relative dielectric constant</a>, <a href="https://publications.waset.org/abstracts/search?q=resistivity" title=" resistivity"> resistivity</a> </p> <a href="https://publications.waset.org/abstracts/29825/electrical-analysis-of-corn-oil-as-an-alternative-to-mineral-oil-in-power-transformers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29825.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">578</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">316</span> Efficiency of Grover’s Search Algorithm Implemented on Open Quantum System in the Presence of Drive-Induced Dissipation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nilanjana%20Chanda">Nilanjana Chanda</a>, <a href="https://publications.waset.org/abstracts/search?q=Rangeet%20Bhattacharyya"> Rangeet Bhattacharyya</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Grover’s search algorithm is the fastest possible quantum mechanical algorithm to search a certain element from an unstructured set of data of N items. The algorithm can determine the desired result in only O(√N) steps. It has been demonstrated theoretically and experimentally on two-qubit systems long ago. In this work, we investigate the fidelity of Grover’s search algorithm by implementing it on an open quantum system. In particular, we study with what accuracy one can estimate that the algorithm would deliver the searched state. In reality, every system has some influence on its environment. We include the environmental effects on the system dynamics by using a recently reported fluctuation-regulated quantum master equation (FRQME). We consider that the environment experiences thermal fluctuations, which leave its signature in the second-order term of the master equation through its appearance as a regulator. The FRQME indicates that in addition to the regular relaxation due to system-environment coupling, the applied drive also causes dissipation in the system dynamics. As a result, the fidelity is found to depend on both the drive-induced dissipative terms and the relaxation terms, and we find that there exists a competition between them, leading to an optimum drive amplitude for which the fidelity becomes maximum. For efficient implementation of the search algorithm, precise knowledge of this optimum drive amplitude is essential. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dissipation" title="dissipation">dissipation</a>, <a href="https://publications.waset.org/abstracts/search?q=fidelity" title=" fidelity"> fidelity</a>, <a href="https://publications.waset.org/abstracts/search?q=quantum%20master%20equation" title=" quantum master equation"> quantum master equation</a>, <a href="https://publications.waset.org/abstracts/search?q=relaxation" title=" relaxation"> relaxation</a>, <a href="https://publications.waset.org/abstracts/search?q=system-environment%20coupling" title=" system-environment coupling"> system-environment coupling</a> </p> <a href="https://publications.waset.org/abstracts/161118/efficiency-of-grovers-search-algorithm-implemented-on-open-quantum-system-in-the-presence-of-drive-induced-dissipation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161118.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">106</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=ATP%20dissipation&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=ATP%20dissipation&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=ATP%20dissipation&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=ATP%20dissipation&page=5">5</a></li> <li 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