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Taylor</title> <meta name="description" content="Search results for: Lisa Taylor"> <meta name="keywords" content="Lisa Taylor"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Lisa Taylor"> <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> 270</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Lisa Taylor</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">270</span> Reconsidering Taylor’s Law with Chaotic Population Dynamical Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yuzuru%20Mitsui">Yuzuru Mitsui</a>, <a href="https://publications.waset.org/abstracts/search?q=Takashi%20Ikegami"> Takashi Ikegami</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The exponents of Taylor’s law in deterministic chaotic systems are computed, and their meanings are intensively discussed. Taylor’s law is the scaling relationship between the mean and variance (in both space and time) of population abundance, and this law is known to hold in a variety of ecological time series. The exponents found in the temporal Taylor’s law are different from those of the spatial Taylor’s law. The temporal Taylor’s law is calculated on the time series from the same locations (or the same initial states) of different temporal phases. However, with the spatial Taylor’s law, the mean and variance are calculated from the same temporal phase sampled from different places. Most previous studies were done with stochastic models, but we computed the temporal and spatial Taylor’s law in deterministic systems. The temporal Taylor’s law evaluated using the same initial state, and the spatial Taylor’s law was evaluated using the ensemble average and variance. There were two main discoveries from this work. First, it is often stated that deterministic systems tend to have the value two for Taylor’s exponent. However, most of the calculated exponents here were not two. Second, we investigated the relationships between chaotic features measured by the Lyapunov exponent, the correlation dimension, and other indexes with Taylor’s exponents. No strong correlations were found; however, there is some relationship in the same model, but with different parameter values, and we will discuss the meaning of those results at the end of this paper. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chaos" title="chaos">chaos</a>, <a href="https://publications.waset.org/abstracts/search?q=density%20effect" title=" density effect"> density effect</a>, <a href="https://publications.waset.org/abstracts/search?q=population%20dynamics" title=" population dynamics"> population dynamics</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor%E2%80%99s%20law" title=" Taylor’s law"> Taylor’s law</a> </p> <a href="https://publications.waset.org/abstracts/109945/reconsidering-taylors-law-with-chaotic-population-dynamical-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/109945.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">174</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">269</span> Experimental Investigations of a Modified Taylor-Couette Flow</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Esmael">Ahmed Esmael</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20El%20Shrif"> Ali El Shrif</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study the instability problem of a modified Taylor-Couette flow between two vertical coaxial cylinders of radius R1, R2 is considered. The modification is based on the wavy shape of the inner cylinder surface, where inner cylinders with different surface amplitude and wavelength are used. The study aims to discover the effect of the inner surface geometry on the instability phenomenon that undergoes Taylor-Couette flow. The study reveals that the transition processes depends strongly on the amplitude and wavelength of the inner cylinder surface and resulting in flow instabilities that are strongly different from that encountered in the case of the classical Taylor-Couette flow. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hydrodynamic%20instability" title="hydrodynamic instability">hydrodynamic instability</a>, <a href="https://publications.waset.org/abstracts/search?q=Modified%20Taylor-Couette%20Flow" title=" Modified Taylor-Couette Flow"> Modified Taylor-Couette Flow</a>, <a href="https://publications.waset.org/abstracts/search?q=turbulence" title=" turbulence"> turbulence</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor%20vortices" title=" Taylor vortices"> Taylor vortices</a> </p> <a href="https://publications.waset.org/abstracts/24825/experimental-investigations-of-a-modified-taylor-couette-flow" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24825.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">432</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">268</span> Interest Rate Prediction with Taylor Rule</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=T.%20Bouchabchoub">T. Bouchabchoub</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Bendahmane"> A. Bendahmane</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Haouriqui"> A. Haouriqui</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Attou"> N. Attou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents simulation results of Forex predicting model equations in order to give approximately a prevision of interest rates. First, Hall-Taylor (HT) equations have been used with Taylor rule (TR) to adapt them to European and American Forex Markets. Indeed, initial Taylor Rule equation is conceived for all Forex transactions in every States: It includes only one equation and six parameters. Here, the model has been used with Hall-Taylor equations, initially including twelve equations which have been reduced to only three equations. Analysis has been developed on the following base macroeconomic variables: Real change rate, investment wages, anticipated inflation, realized inflation, real production, interest rates, gap production and potential production. This model has been used to specifically study the impact of an inflation shock on macroeconomic director interest rates. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=interest%20rate" title="interest rate">interest rate</a>, <a href="https://publications.waset.org/abstracts/search?q=Forex" title=" Forex"> Forex</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor%20rule" title=" Taylor rule"> Taylor rule</a>, <a href="https://publications.waset.org/abstracts/search?q=production" title=" production"> production</a>, <a href="https://publications.waset.org/abstracts/search?q=European%20Central%20Bank%20%28ECB%29" title=" European Central Bank (ECB)"> European Central Bank (ECB)</a>, <a href="https://publications.waset.org/abstracts/search?q=Federal%20Reserve%20System%20%28FED%29." title=" Federal Reserve System (FED)."> Federal Reserve System (FED).</a> </p> <a href="https://publications.waset.org/abstracts/12544/interest-rate-prediction-with-taylor-rule" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12544.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">527</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">267</span> Unveiling Special Policy Regime, Judgment, and Taylor Rules in Tunisia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yosra%20Baaziz">Yosra Baaziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Moez%20Labidi"> Moez Labidi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Given limited research on monetary policy rules in revolutionary countries, this paper challenges the suitability of the Taylor rule in characterizing the monetary policy behavior of the Tunisian Central Bank (BCT), especially in turbulent times. More specifically, we investigate the possibility that the Taylor rule should be formulated as a threshold process and examine the validity of such nonlinear Taylor rule as a robust rule for conducting monetary policy in Tunisia. Using quarterly data from 1998:Q4 to 2013:Q4 to analyze the movement of nominal short-term interest rate of the BCT, we find that the nonlinear Taylor rule improves its performance with the advent of special events providing thus a better description of the Tunisian interest rate setting. In particular, our results show that the adoption of an appropriate nonlinear approach leads to a reduction in the errors of 150 basis points in 1999 and 2009, and 60 basis points in 2011, relative to the linear approach. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=policy%20rule" title="policy rule">policy rule</a>, <a href="https://publications.waset.org/abstracts/search?q=central%20bank" title=" central bank"> central bank</a>, <a href="https://publications.waset.org/abstracts/search?q=exchange%20rate" title=" exchange rate"> exchange rate</a>, <a href="https://publications.waset.org/abstracts/search?q=taylor%20rule" title=" taylor rule"> taylor rule</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinearity" title=" nonlinearity"> nonlinearity</a> </p> <a href="https://publications.waset.org/abstracts/41715/unveiling-special-policy-regime-judgment-and-taylor-rules-in-tunisia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41715.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">296</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">266</span> Chaotic Behavior in Monetary Systems: Comparison among Different Types of Taylor Rule</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reza%20Moosavi%20Mohseni">Reza Moosavi Mohseni</a>, <a href="https://publications.waset.org/abstracts/search?q=Wenjun%20Zhang"> Wenjun Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jiling%20Cao"> Jiling Cao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of the present study is to detect the chaotic behavior in monetary economic relevant dynamical system. The study employs three different forms of Taylor rules: current, forward, and backward looking. The result suggests the existence of the chaotic behavior in all three systems. In addition, the results strongly represent that using expectations especially rational expectation hypothesis can increase complexity of the system and leads to more chaotic behavior. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=taylor%20rule" title="taylor rule">taylor rule</a>, <a href="https://publications.waset.org/abstracts/search?q=monetary%20system" title=" monetary system"> monetary system</a>, <a href="https://publications.waset.org/abstracts/search?q=chaos%20theory" title=" chaos theory"> chaos theory</a>, <a href="https://publications.waset.org/abstracts/search?q=lyapunov%20exponent" title=" lyapunov exponent"> lyapunov exponent</a>, <a href="https://publications.waset.org/abstracts/search?q=GMM%20estimator" title=" GMM estimator"> GMM estimator</a> </p> <a href="https://publications.waset.org/abstracts/27264/chaotic-behavior-in-monetary-systems-comparison-among-different-types-of-taylor-rule" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27264.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">528</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">265</span> Exploring Visual Arts through the Blue Humanities: The Case Study of Jason deCaires Taylor's Underwater Sculptures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Muharram">Mohammed Muharram</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Blue Humanities aims to deepen our understanding of the oceans through the integration of arts and sciences, emphasizing their cultural, historical, and ecological significance. This study explores the role of visual arts within this interdisciplinary framework, focusing on the underwater sculptures of Jason deCaires Taylor as a case study. The research employs a multidisciplinary approach, combining art history, environmental science, and cultural studies to explore the significance of Taylor's underwater installations. Methodologies include analysis of the artistic elements and themes in Taylor's work, assessment of the ecological impact of the sculptures on marine environments, and examination of the cultural narratives they evoke. Key findings highlight how Taylor's sculptures serve as artificial reefs, promoting marine biodiversity while simultaneously raising awareness about ocean conservation. The artworks act as powerful symbols, merging environmental activism with artistic expression and transforming underwater spaces into immersive art galleries that challenge traditional notions of viewing art. By bridging the gap between visual arts and environmental science, this study demonstrates how Taylor's sculptures contribute to the Blue Humanities by fostering a deeper, more holistic appreciation of the marine world. The research advocates for the continued integration of artistic perspectives into marine conservation efforts, emphasizing the role of visual arts in shaping public perceptions and promoting ecological sustainability. In conclusion, this study underscores the transformative potential of visual arts within the Blue Humanities, exemplified by Jason deCaires Taylor's underwater sculptures, which inspire both aesthetic appreciation and environmental consciousness. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=blue%20humanities" title="blue humanities">blue humanities</a>, <a href="https://publications.waset.org/abstracts/search?q=visual%20art" title=" visual art"> visual art</a>, <a href="https://publications.waset.org/abstracts/search?q=underwater%20sculptures" title=" underwater sculptures"> underwater sculptures</a>, <a href="https://publications.waset.org/abstracts/search?q=Jason%20deCaires%20Taylor" title=" Jason deCaires Taylor"> Jason deCaires Taylor</a> </p> <a href="https://publications.waset.org/abstracts/188792/exploring-visual-arts-through-the-blue-humanities-the-case-study-of-jason-decaires-taylors-underwater-sculptures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/188792.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">26</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">264</span> The Bernstein Expansion for Exponentials in Taylor Functions: Approximation of Fixed Points</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tareq%20Hamadneh">Tareq Hamadneh</a>, <a href="https://publications.waset.org/abstracts/search?q=Jochen%20Merker"> Jochen Merker</a>, <a href="https://publications.waset.org/abstracts/search?q=Hassan%20Al-Zoubi"> Hassan Al-Zoubi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Bernstein's expansion for exponentials in Taylor functions provides lower and upper optimization values for the range of its original function. these values converge to the original functions if the degree is elevated or the domain subdivided. Taylor polynomial can be applied so that the exponential is a polynomial of finite degree over a given domain. Bernstein's basis has two main properties: its sum equals 1, and positive for all x 2 (0; 1). In this work, we prove the existence of fixed points for exponential functions in a given domain using the optimization values of Bernstein. The Bernstein basis of finite degree T over a domain D is defined non-negatively. Any polynomial p of degree t can be expanded into the Bernstein form of maximum degree t ≤ T, where we only need to compute the coefficients of Bernstein in order to optimize the original polynomial. The main property is that p(x) is approximated by the minimum and maximum Bernstein coefficients (Bernstein bound). If the bound is contained in the given domain, then we say that p(x) has fixed points in the same domain. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bernstein%20polynomials" title="Bernstein polynomials">Bernstein polynomials</a>, <a href="https://publications.waset.org/abstracts/search?q=Stability%20of%20control%20functions" title="Stability of control functions">Stability of control functions</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20optimization" title="numerical optimization">numerical optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor%20function" title="Taylor function">Taylor function</a> </p> <a href="https://publications.waset.org/abstracts/149910/the-bernstein-expansion-for-exponentials-in-taylor-functions-approximation-of-fixed-points" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149910.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">135</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">263</span> Taylor’s Law and Relationship between Life Expectancy at Birth and Variance in Age at Death in Period Life Table</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=David%20A.%20Swanson">David A. Swanson</a>, <a href="https://publications.waset.org/abstracts/search?q=Lucky%20M.%20Tedrow"> Lucky M. Tedrow</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Taylor’s Law is a widely observed empirical pattern that relates variances to means in sets of non-negative measurements via an approximate power function, which has found application to human mortality. This study adds to this research by showing that Taylor’s Law leads to a model that reasonably describes the relationship between life expectancy at birth (e0, which also is equal to mean age at death in a life table) and variance at age of death in seven World Bank regional life tables measured at two points in time, 1970 and 2000. Using as a benchmark a non-random sample of four Japanese female life tables covering the period from 1950 to 2004, the study finds that the simple linear model provides reasonably accurate estimates of variance in age at death in a life table from e0, where the latter range from 60.9 to 85.59 years. Employing 2017 life tables from the Human Mortality Database, the simple linear model is used to provide estimates of variance at age in death for six countries, three of which have high e0 values and three of which have lower e0 values. The paper provides a substantive interpretation of Taylor’s Law relative to e0 and concludes by arguing that reasonably accurate estimates of variance in age at death in a period life table can be calculated using this approach, which also can be used where e0 itself is estimated rather than generated through the construction of a life table, a useful feature of the model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=empirical%20pattern" title="empirical pattern">empirical pattern</a>, <a href="https://publications.waset.org/abstracts/search?q=mean%20age%20at%20death%20in%20a%20life%20table" title=" mean age at death in a life table"> mean age at death in a life table</a>, <a href="https://publications.waset.org/abstracts/search?q=mean%20age%20of%20a%20stationary%20population" title=" mean age of a stationary population"> mean age of a stationary population</a>, <a href="https://publications.waset.org/abstracts/search?q=stationary%20population" title=" stationary population"> stationary population</a> </p> <a href="https://publications.waset.org/abstracts/138835/taylors-law-and-relationship-between-life-expectancy-at-birth-and-variance-in-age-at-death-in-period-life-table" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138835.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">330</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">262</span> Retail Strategy to Reduce Waste Keeping High Profit Utilizing Taylor's Law in Point-of-Sales Data</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gen%20Sakoda">Gen Sakoda</a>, <a href="https://publications.waset.org/abstracts/search?q=Hideki%20Takayasu"> Hideki Takayasu</a>, <a href="https://publications.waset.org/abstracts/search?q=Misako%20Takayasu"> Misako Takayasu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Waste reduction is a fundamental problem for sustainability. Methods for waste reduction with point-of-sales (POS) data are proposed, utilizing the knowledge of a recent econophysics study on a statistical property of POS data. Concretely, the non-stationary time series analysis method based on the Particle Filter is developed, which considers abnormal fluctuation scaling known as Taylor's law. This method is extended for handling incomplete sales data because of stock-outs by introducing maximum likelihood estimation for censored data. The way for optimal stock determination with pricing the cost of waste reduction is also proposed. This study focuses on the examination of the methods for large sales numbers where Taylor's law is obvious. Numerical analysis using aggregated POS data shows the effectiveness of the methods to reduce food waste maintaining a high profit for large sales numbers. Moreover, the way of pricing the cost of waste reduction reveals that a small profit loss realizes substantial waste reduction, especially in the case that the proportionality constant  of Taylor’s law is small. Specifically, around 1% profit loss realizes half disposal at =0.12, which is the actual  value of processed food items used in this research. The methods provide practical and effective solutions for waste reduction keeping a high profit, especially with large sales numbers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=food%20waste%20reduction" title="food waste reduction">food waste reduction</a>, <a href="https://publications.waset.org/abstracts/search?q=particle%20filter" title=" particle filter"> particle filter</a>, <a href="https://publications.waset.org/abstracts/search?q=point-of-sales" title=" point-of-sales"> point-of-sales</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20development%20goals" title=" sustainable development goals"> sustainable development goals</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor%27s%20law" title=" Taylor's law"> Taylor's law</a>, <a href="https://publications.waset.org/abstracts/search?q=time%20series%20analysis" title=" time series analysis"> time series analysis</a> </p> <a href="https://publications.waset.org/abstracts/112690/retail-strategy-to-reduce-waste-keeping-high-profit-utilizing-taylors-law-in-point-of-sales-data" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/112690.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">131</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">261</span> Comparing Numerical Accuracy of Solutions of Ordinary Differential Equations (ODE) Using Taylor's Series Method, Euler's Method and Runge-Kutta (RK) Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Palwinder%20Singh">Palwinder Singh</a>, <a href="https://publications.waset.org/abstracts/search?q=Munish%20Sandhir"> Munish Sandhir</a>, <a href="https://publications.waset.org/abstracts/search?q=Tejinder%20Singh"> Tejinder Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The ordinary differential equations (ODE) represent a natural framework for mathematical modeling of many real-life situations in the field of engineering, control systems, physics, chemistry and astronomy etc. Such type of differential equations can be solved by analytical methods or by numerical methods. If the solution is calculated using analytical methods, it is done through calculus theories, and thus requires a longer time to solve. In this paper, we compare the numerical accuracy of the solutions given by the three main types of one-step initial value solvers: Taylor’s Series Method, Euler’s Method and Runge-Kutta Fourth Order Method (RK4). The comparison of accuracy is obtained through comparing the solutions of ordinary differential equation given by these three methods. Furthermore, to verify the accuracy; we compare these numerical solutions with the exact solutions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ordinary%20differential%20equations%20%28ODE%29" title="Ordinary differential equations (ODE)">Ordinary differential equations (ODE)</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor%E2%80%99s%20Series%20Method" title=" Taylor’s Series Method"> Taylor’s Series Method</a>, <a href="https://publications.waset.org/abstracts/search?q=Euler%E2%80%99s%20Method" title=" Euler’s Method"> Euler’s Method</a>, <a href="https://publications.waset.org/abstracts/search?q=Runge-Kutta%20Fourth%20Order%20Method" title=" Runge-Kutta Fourth Order Method"> Runge-Kutta Fourth Order Method</a> </p> <a href="https://publications.waset.org/abstracts/56685/comparing-numerical-accuracy-of-solutions-of-ordinary-differential-equations-ode-using-taylors-series-method-eulers-method-and-runge-kutta-rk-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56685.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">358</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">260</span> Chebyshev Wavelets and Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emanuel%20Guariglia">Emanuel Guariglia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper we deal with Chebyshev wavelets. We analyze their properties computing their Fourier transform. Moreover, we discuss the differential properties of Chebyshev wavelets due the connection coefficients. The differential properties of Chebyshev wavelets, expressed by the connection coefficients (also called refinable integrals), are given by finite series in terms of the Kronecker delta. Moreover, we treat the p-order derivative of Chebyshev wavelets and compute its Fourier transform. Finally, we expand the mother wavelet in Taylor series with an application both in fractional calculus and fractal geometry. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chebyshev%20wavelets" title="Chebyshev wavelets">Chebyshev wavelets</a>, <a href="https://publications.waset.org/abstracts/search?q=Fourier%20transform" title=" Fourier transform"> Fourier transform</a>, <a href="https://publications.waset.org/abstracts/search?q=connection%20coefficients" title=" connection coefficients"> connection coefficients</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor%20series" title=" Taylor series"> Taylor series</a>, <a href="https://publications.waset.org/abstracts/search?q=local%20fractional%20derivative" title=" local fractional derivative"> local fractional derivative</a>, <a href="https://publications.waset.org/abstracts/search?q=Cantor%20set" title=" Cantor set"> Cantor set</a> </p> <a href="https://publications.waset.org/abstracts/157194/chebyshev-wavelets-and-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/157194.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">122</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">259</span> Hydromagnetic Linear Instability Analysis of Giesekus Fluids in Taylor-Couette Flow</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20Godazandeh">K. Godazandeh</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Sadeghy"> K. Sadeghy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the present study, the effect of magnetic field on the hydrodynamic instability of Taylor-Couette flow between two concentric rotating cylinders has been numerically investigated. At the beginning the basic flow has been solved using continuity, Cauchy equations (with regards to Lorentz force) and the constitutive equations of a viscoelastic model called "Giesekus" model. Small perturbations, considered to be normal mode, have been superimposed to the basic flow and the unsteady perturbation equations have been derived consequently. Neglecting non-linear terms, the general eigenvalue problem obtained has been solved using pseudo spectral method (combination of Chebyshev polynomials). The objective of the calculations is to study the effect of magnetic fields on the onset of first mode of instability (axisymmetric mode) for different dimensionless parameters of the flow. The results show that the stability picture is highly influenced by the magnetic field. When magnetic field increases, it first has a destabilization effect which changes to stabilization effect due to more increase of magnetic fields. Therefor there is a critical magnetic number (Hartmann number) for instability of Taylor-Couette flow. Also, the effect of magnetic field is more dominant in large gaps. Also based on the results obtained, magnetic field shows a more considerable effect on the stability at higher Weissenberg numbers (at higher elasticity), while the "mobility factor" changes show no dominant role on the intense of suction and injection effect on the flow's instability. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic%20field" title="magnetic field">magnetic field</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor-Couette%20flow" title=" Taylor-Couette flow"> Taylor-Couette flow</a>, <a href="https://publications.waset.org/abstracts/search?q=Giesekus%20model" title=" Giesekus model"> Giesekus model</a>, <a href="https://publications.waset.org/abstracts/search?q=pseudo%20spectral%20method" title=" pseudo spectral method"> pseudo spectral 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=Hartmann%20number" title=" Hartmann number"> Hartmann number</a>, <a href="https://publications.waset.org/abstracts/search?q=Weissenberg%20number" title=" Weissenberg number"> Weissenberg number</a>, <a href="https://publications.waset.org/abstracts/search?q=mobility%20factor" title=" mobility factor"> mobility factor</a> </p> <a href="https://publications.waset.org/abstracts/13488/hydromagnetic-linear-instability-analysis-of-giesekus-fluids-in-taylor-couette-flow" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13488.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">390</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">258</span> Epistemic Uncertainty Analysis of Queue with Vacations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Baya%20Takhedmit">Baya Takhedmit</a>, <a href="https://publications.waset.org/abstracts/search?q=Karim%20Abbas"> Karim Abbas</a>, <a href="https://publications.waset.org/abstracts/search?q=Sofiane%20Ouazine"> Sofiane Ouazine</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The vacations queues are often employed to model many real situations such as computer systems, communication networks, manufacturing and production systems, transportation systems and so forth. These queueing models are solved at fixed parameters values. However, the parameter values themselves are determined from a finite number of observations and hence have uncertainty associated with them (epistemic uncertainty). In this paper, we consider the M/G/1/N queue with server vacation and exhaustive discipline where we assume that the vacation parameter values have uncertainty. We use the Taylor series expansions approach to estimate the expectation and variance of model output, due to epistemic uncertainties in the model input parameters. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=epistemic%20uncertainty" title="epistemic uncertainty">epistemic uncertainty</a>, <a href="https://publications.waset.org/abstracts/search?q=M%2FG%2F1%2FN%20queue%20with%20vacations" title=" M/G/1/N queue with vacations"> M/G/1/N queue with vacations</a>, <a href="https://publications.waset.org/abstracts/search?q=non-parametric%20sensitivity%20analysis" title=" non-parametric sensitivity analysis"> non-parametric sensitivity analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor%20series%20expansion" title=" Taylor series expansion"> Taylor series expansion</a> </p> <a href="https://publications.waset.org/abstracts/63375/epistemic-uncertainty-analysis-of-queue-with-vacations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63375.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">433</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">257</span> A New Floating Point Implementation of Base 2 Logarithm</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20M.%20Mansour">Ahmed M. Mansour</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20M.%20El-Sawy"> Ali M. El-Sawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20T.%20Sayed"> Ahmed T. Sayed </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Logarithms reduce products to sums and powers to products; they play an important role in signal processing, communication and information theory. They are primarily used for hardware calculations, handling multiplications, divisions, powers, and roots effectively. There are three commonly used bases for logarithms; the logarithm with base-10 is called the common logarithm, the natural logarithm with base-e and the binary logarithm with base-2. This paper demonstrates different methods of calculation for log2 showing the complexity of each and finds out the most accurate and efficient besides giving in- sights to their hardware design. We present a new method called Floor Shift for fast calculation of log2, and then we combine this algorithm with Taylor series to improve the accuracy of the output, we illustrate that by using two examples. We finally compare the algorithms and conclude with our remarks. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=logarithms" title="logarithms">logarithms</a>, <a href="https://publications.waset.org/abstracts/search?q=log2" title=" log2"> log2</a>, <a href="https://publications.waset.org/abstracts/search?q=floor" title=" floor"> floor</a>, <a href="https://publications.waset.org/abstracts/search?q=iterative" title=" iterative"> iterative</a>, <a href="https://publications.waset.org/abstracts/search?q=CORDIC" title=" CORDIC"> CORDIC</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor%20series" title=" Taylor series "> Taylor series </a> </p> <a href="https://publications.waset.org/abstracts/15224/a-new-floating-point-implementation-of-base-2-logarithm" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15224.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">531</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">256</span> Emerging Technologies in Distance Education </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eunice%20H.%20Li">Eunice H. Li</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper discusses and analyses a small portion of the literature that has been reviewed for research work in Distance Education (DE) pedagogies that I am currently undertaking. It begins by presenting a brief overview of Taylor's (2001) five-generation models of Distance Education. The focus of the discussion will be on the 5th generation, Intelligent Flexible Learning Model. For this generation, educational and other institutions make portal access and interactive multi-media (IMM) an integral part of their operations. The paper then takes a brief look at current trends in technologies – for example smart-watch wearable technology such as Apple Watch. The emergent trends in technologies carry many new features. These are compared to former DE generational features. Also compared is the time span that has elapsed between the generations that are referred to in Taylor's model. This paper is a work in progress. The paper therefore welcome new insights, comparisons and critique of the issues discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=distance%20education" title="distance education">distance education</a>, <a href="https://publications.waset.org/abstracts/search?q=e-learning%20technologies" title=" e-learning technologies"> e-learning technologies</a>, <a href="https://publications.waset.org/abstracts/search?q=pedagogy" title=" pedagogy"> pedagogy</a>, <a href="https://publications.waset.org/abstracts/search?q=generational%20models" title=" generational models"> generational models</a> </p> <a href="https://publications.waset.org/abstracts/24028/emerging-technologies-in-distance-education" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24028.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">462</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">255</span> Subclasses of Bi-Univalent Functions Associated with Hohlov Operator</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rashidah%20Omar">Rashidah Omar</a>, <a href="https://publications.waset.org/abstracts/search?q=Suzeini%20Abdul%20Halim"> Suzeini Abdul Halim</a>, <a href="https://publications.waset.org/abstracts/search?q=Aini%20Janteng"> Aini Janteng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The coefficients estimate problem for Taylor-Maclaurin series is still an open problem especially for a function in the subclass of bi-univalent functions. A function <em>f </em>ϵ<em> A </em>is said to be bi-univalent in the open unit disk <em>D</em> if both <em>f </em>and <em>f<sup>-1</sup></em> are univalent in <em>D</em>. The symbol <em>A</em> denotes the class of all analytic functions <em>f</em> in <em>D</em> and it is normalized by the conditions <em>f</em>(0) = <em>f’</em>(0) – 1=0. The class of bi-univalent is denoted by  The subordination concept is used in determining second and third Taylor-Maclaurin coefficients. The upper bound for second and third coefficients is estimated for functions in the subclasses of bi-univalent functions which are subordinated to the function φ. An analytic function <em>f</em> is subordinate to an analytic function <em>g</em> if there is an analytic function <em>w</em> defined on <em>D</em> with <em>w</em>(0) = 0 and |<em>w</em>(z)| < 1 satisfying <em>f</em>(<em>z</em>) = <em>g</em>[<em>w</em>(<em>z</em>)]. In this paper, two subclasses of bi-univalent functions associated with Hohlov operator are introduced. The bound for second and third coefficients of functions in these subclasses is determined using subordination. The findings would generalize the previous related works of several earlier authors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=analytic%20functions" title="analytic functions">analytic functions</a>, <a href="https://publications.waset.org/abstracts/search?q=bi-univalent%20functions" title=" bi-univalent functions"> bi-univalent functions</a>, <a href="https://publications.waset.org/abstracts/search?q=Hohlov%20operator" title=" Hohlov operator"> Hohlov operator</a>, <a href="https://publications.waset.org/abstracts/search?q=subordination" title=" subordination"> subordination</a> </p> <a href="https://publications.waset.org/abstracts/72671/subclasses-of-bi-univalent-functions-associated-with-hohlov-operator" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72671.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">292</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">254</span> A Hybrid Adomian Decomposition Method in the Solution of Logistic Abelian Ordinary Differential and Its Comparism with Some Standard Numerical Scheme</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=F.%20J.%20Adeyeye">F. J. Adeyeye</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Eni"> D. Eni</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20M.%20Okedoye"> K. M. Okedoye</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper we present a Hybrid of Adomian decomposition method (ADM). This is the substitution of a One-step method of Taylor’s series approximation of orders I and II, into the nonlinear part of Adomian decomposition method resulting in a convergent series scheme. This scheme is applied to solve some Logistic problems represented as Abelian differential equation and the results are compared with the actual solution and Runge-kutta of order IV in order to ascertain the accuracy and efficiency of the scheme. The findings shows that the scheme is efficient enough to solve logistic problems considered in this paper. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adomian%20decomposition%20method" title="Adomian decomposition method">Adomian decomposition method</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear%20part" title=" nonlinear part"> nonlinear part</a>, <a href="https://publications.waset.org/abstracts/search?q=one-step%20method" title=" one-step method"> one-step method</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor%20series%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20approximation" title=" Taylor series approximation"> Taylor series approximation</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20of%20Adomian%20polynomial" title=" hybrid of Adomian polynomial"> hybrid of Adomian polynomial</a>, <a href="https://publications.waset.org/abstracts/search?q=logistic%20problem" title=" logistic problem"> logistic problem</a>, <a href="https://publications.waset.org/abstracts/search?q=Malthusian%20parameter" title=" Malthusian parameter"> Malthusian parameter</a>, <a href="https://publications.waset.org/abstracts/search?q=Verhulst%20Model" title=" Verhulst Model"> Verhulst Model</a> </p> <a href="https://publications.waset.org/abstracts/36872/a-hybrid-adomian-decomposition-method-in-the-solution-of-logistic-abelian-ordinary-differential-and-its-comparism-with-some-standard-numerical-scheme" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36872.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">400</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">253</span> Analysis of Exponential Nonuniform Transmission Line Parameters </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mounir%20Belattar">Mounir Belattar </a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper the Analysis of voltage waves that propagate along a lossless exponential nonuniform line is presented. For this analysis the parameters of this line are assumed to be varying function of the distance x along the line from the source end. The approach is based on the tow-port networks cascading presentation to derive the ABDC parameters of transmission using Picard-Carson Method which is a powerful method in getting a power series solution for distributed network because it is easy to calculate poles and zeros and solves differential equations such as telegrapher equations by an iterative sequence. So the impedance, admittance voltage and current along the line are expanded as a Taylor series in x/l where l is the total length of the line to obtain at the end, the main transmission line parameters such as voltage response and transmission and reflexion coefficients represented by scattering parameters in frequency domain. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ABCD%20parameters" title="ABCD parameters">ABCD parameters</a>, <a href="https://publications.waset.org/abstracts/search?q=characteristic%20impedance%20exponential%20nonuniform%20transmission%20line" title=" characteristic impedance exponential nonuniform transmission line"> characteristic impedance exponential nonuniform transmission line</a>, <a href="https://publications.waset.org/abstracts/search?q=Picard-Carson%27s%20method" title=" Picard-Carson's method"> Picard-Carson's method</a>, <a href="https://publications.waset.org/abstracts/search?q=S%20parameters" title=" S parameters"> S parameters</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor%27s%20series" title=" Taylor's series"> Taylor's series</a> </p> <a href="https://publications.waset.org/abstracts/32383/analysis-of-exponential-nonuniform-transmission-line-parameters" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32383.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">443</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">252</span> Experimental and Numerical Investigation on the Torque in a Small Gap Taylor-Couette Flow with Smooth and Grooved Surface</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=L.%20Joseph">L. Joseph</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Farid"> B. Farid</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Ravelet"> F. Ravelet</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fundamental studies were performed on bifurcation, instabilities and turbulence in Taylor-Couette flow and applied to many engineering applications like astrophysics models in the accretion disks, shrouded fans, and electric motors. Such rotating machinery performances need to have a better understanding of the fluid flow distribution to quantify the power losses and the heat transfer distribution. The present investigation is focused on high gap ratio of Taylor-Couette flow with high rotational speeds, for smooth and grooved surfaces. So far, few works has been done in a very narrow gap and with very high rotation rates and, to the best of our knowledge, not with this combination with grooved surface. We study numerically the turbulent flow between two coaxial cylinders where R1 and R2 are the inner and outer radii respectively, where only the inner is rotating. The gap between the rotor and the stator varies between 0.5 and 2 mm, which corresponds to a radius ratio η = R1/R2 between 0.96 and 0.99 and an aspect ratio Γ= L/d between 50 and 200, where L is the length of the rotor and d being the gap between the two cylinders. The scaling of the torque with the Reynolds number is determined at different gaps for different smooth and grooved surfaces (and also with different number of grooves). The fluid in the gap is air. Re varies between 8000 and 30000. Another dimensionless parameter that plays an important role in the distinction of the regime of the flow is the Taylor number that corresponds to the ratio between the centrifugal forces and the viscous forces (from 6.7 X 105 to 4.2 X 107). The torque will be first evaluated with RANS and U-RANS models, and compared to empirical models and experimental results. A mesh convergence study has been done for each rotor-stator combination. The results of the torque are compared to different meshes in 2D dimensions. For the smooth surfaces, the models used overestimate the torque compared to the empirical equations that exist in the bibliography. The closest models to the empirical models are those solving the equations near to the wall. The greatest torque achieved with grooved surface. The tangential velocity in the gap was always higher in between the rotor and the stator and not on the wall of rotor. Also the greater one was in the groove in the recirculation zones. In order to avoid endwall effects, long cylinders are used in our setup (100 mm), torque is measured by a co-rotating torquemeter. The rotor is driven by an air turbine of an automotive turbo-compressor for high angular velocities. The results of the experimental measurements are at rotational speed of up to 50 000 rpm. The first experimental results are in agreement with numerical ones. Currently, quantitative study is performed on grooved surface, to determine the effect of number of grooves on the torque, experimentally and numerically. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Taylor-Couette%20flow" title="Taylor-Couette flow">Taylor-Couette flow</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20gap%20ratio" title=" high gap ratio"> high gap ratio</a>, <a href="https://publications.waset.org/abstracts/search?q=grooved%20surface" title=" grooved surface"> grooved surface</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20speed" title=" high speed"> high speed</a> </p> <a href="https://publications.waset.org/abstracts/31321/experimental-and-numerical-investigation-on-the-torque-in-a-small-gap-taylor-couette-flow-with-smooth-and-grooved-surface" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31321.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">406</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">251</span> Indigenous Influences on American Osteopathy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lewis%20Mehl-Madrona">Lewis Mehl-Madrona</a>, <a href="https://publications.waset.org/abstracts/search?q=Josephine%20Conte"> Josephine Conte</a>, <a href="https://publications.waset.org/abstracts/search?q=Barbara%20Mainguy"> Barbara Mainguy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We explore the historical connection of Andrew Taylor Still with the aboriginal nations placed in Missouri, notably the Shawnee, Pawnee, Kickapoo, Cherokee, and the Pottowattomy. Still was fluent in Shawnee and himself was part Native American (Lumbee). These nations had well-developed forms of hands-on healing as well as practicing lightning bone setting. They were more sophisticated than their European-derived neighbors in treating fractures and discolocations. We trace Still’s writings as evidence for his connectedness with these people and respect for their traditions. We explore the traditional hands-on therapies of these nations and discover that they are quite similar to osteopathy. We propose that Still was a translator of traditional manual medicine of the nations into the mainstream of American society. While, surely, he made his own personal contributions to manual medicine, he did not invent osteopathy de novo but relied on methods that were well-developed across centuries for his inspiration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=indigenous%20healing" title="indigenous healing">indigenous healing</a>, <a href="https://publications.waset.org/abstracts/search?q=indigenous%20bodywork" title=" indigenous bodywork"> indigenous bodywork</a>, <a href="https://publications.waset.org/abstracts/search?q=American%20osteopathy" title=" American osteopathy"> American osteopathy</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrew%20Taylor%20Still" title=" Andrew Taylor Still"> Andrew Taylor Still</a>, <a href="https://publications.waset.org/abstracts/search?q=Cherokee" title=" Cherokee"> Cherokee</a>, <a href="https://publications.waset.org/abstracts/search?q=Shawnee" title=" Shawnee"> Shawnee</a> </p> <a href="https://publications.waset.org/abstracts/134446/indigenous-influences-on-american-osteopathy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/134446.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">225</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">250</span> Derivation of Fractional Black-Scholes Equations Driven by Fractional G-Brownian Motion and Their Application in European Option Pricing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Changhong%20Guo">Changhong Guo</a>, <a href="https://publications.waset.org/abstracts/search?q=Shaomei%20Fang"> Shaomei Fang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yong%20He"> Yong He</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, fractional Black-Scholes models for the European option pricing were established based on the fractional G-Brownian motion (fGBm), which generalizes the concepts of the classical Brownian motion, fractional Brownian motion and the G-Brownian motion, and that can be used to be a tool for considering the long range dependence and uncertain volatility for the financial markets simultaneously. A generalized fractional Black-Scholes equation (FBSE) was derived by using the Taylor’s series of fractional order and the theory of absence of arbitrage. Finally, some explicit option pricing formulas for the European call option and put option under the FBSE were also solved, which extended the classical option pricing formulas given by F. Black and M. Scholes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=European%20option%20pricing" title="European option pricing">European option pricing</a>, <a href="https://publications.waset.org/abstracts/search?q=fractional%20Black-Scholes%20equations" title=" fractional Black-Scholes equations"> fractional Black-Scholes equations</a>, <a href="https://publications.waset.org/abstracts/search?q=fractional%20g-Brownian%20motion" title=" fractional g-Brownian motion"> fractional g-Brownian motion</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor%27s%20series%20of%20fractional%20order" title=" Taylor's series of fractional order"> Taylor's series of fractional order</a>, <a href="https://publications.waset.org/abstracts/search?q=uncertain%20volatility" title=" uncertain volatility"> uncertain volatility</a> </p> <a href="https://publications.waset.org/abstracts/127107/derivation-of-fractional-black-scholes-equations-driven-by-fractional-g-brownian-motion-and-their-application-in-european-option-pricing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/127107.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">163</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">249</span> A Modelling Analysis of Monetary Policy Rule</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wael%20Bakhit">Wael Bakhit</a>, <a href="https://publications.waset.org/abstracts/search?q=Salma%20Bakhit"> Salma Bakhit</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper employs a quarterly time series to determine the timing of structural breaks for interest rates in USA over the last 60 years. The Chow test is used for investigating the non-stationary, where the date of the potential break is assumed to be known. Moreover, an empirical examination of the financial sector was made to check if it is positively related to deviations from an assumed interest rate as given in a standard Taylor rule. The empirical analysis is strengthened by analysing the rule from a historical perspective and a look at the effect of setting the interest rate by the central bank on financial imbalances. The empirical evidence indicates that deviation in monetary policy has a potential causal factor in the build-up of financial imbalances and the subsequent crisis where macro prudential intervention could have beneficial effect. Thus, our findings tend to support the view which states that the probable existence of central banks has been a source of global financial crisis since the past decade. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Taylor%20rule" title="Taylor rule">Taylor rule</a>, <a href="https://publications.waset.org/abstracts/search?q=financial%20imbalances" title=" financial imbalances"> financial imbalances</a>, <a href="https://publications.waset.org/abstracts/search?q=central%20banks" title=" central banks"> central banks</a>, <a href="https://publications.waset.org/abstracts/search?q=econometrics" title=" econometrics"> econometrics</a> </p> <a href="https://publications.waset.org/abstracts/8233/a-modelling-analysis-of-monetary-policy-rule" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8233.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">389</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">248</span> Importance of Access to Public Information on Modern Slavery for Brazil's Livestock Sector</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Juliana%20Brandao">Juliana Brandao</a>, <a href="https://publications.waset.org/abstracts/search?q=Holly%20Gibbs"> Holly Gibbs</a>, <a href="https://publications.waset.org/abstracts/search?q=Lisa%20Naughton"> Lisa Naughton</a>, <a href="https://publications.waset.org/abstracts/search?q=Lisa%20Rausch"> Lisa Rausch</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Brazilian Amazon continues to be plagued by modern day slave labor, specifically within the cattle production industry. In response to this issue, modern day anti-slavery activists have implemented additional regulations designed to combat slave labor associated with cattle. These regulations have been incorporated into existing agreements designed to control deforestation. The goal of these rules is to prevent the trade of beef contaminated with modern slave labor between supplier farms and slaughterhouses. In this study, we identify farms that make use of modern slave labor, and we use cattle transaction data to track the sale of cattle between farms and slaughterhouses. Our analysis reveals that slaughterhouses, which have signed cattle agreements that include requirements to refuse cattle associated with modern slave labor, have avoided buying cattle from suppliers that were on the dirty list. This trend is especially evident when the "dirty lists" that identify modern-day slave labor users are made publicly accessible online. We conclude that the "dirty list" of modern-day slave labor users should be maintained on publicly available websites to allow slaughterhouses, retailers, and consumers to send powerful market signals that discourage the use of modern-day slave labor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cattle%20ranchers" title="cattle ranchers">cattle ranchers</a>, <a href="https://publications.waset.org/abstracts/search?q=modern%20slave%20labor" title=" modern slave labor"> modern slave labor</a>, <a href="https://publications.waset.org/abstracts/search?q=deforestation" title=" deforestation"> deforestation</a>, <a href="https://publications.waset.org/abstracts/search?q=brazilian%20amazon" title=" brazilian amazon"> brazilian amazon</a> </p> <a href="https://publications.waset.org/abstracts/163594/importance-of-access-to-public-information-on-modern-slavery-for-brazils-livestock-sector" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/163594.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">116</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">247</span> Enhancing Traditional Saudi Designs Pattern Cutting to Integrate Them Into Current Clothing Offers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Faizah%20Almalki">Faizah Almalki</a>, <a href="https://publications.waset.org/abstracts/search?q=Simeon%20Gill"> Simeon Gill</a>, <a href="https://publications.waset.org/abstracts/search?q=Steve%20G.%20Hayes"> Steve G. Hayes</a>, <a href="https://publications.waset.org/abstracts/search?q=Lisa%20Taylor"> Lisa Taylor</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A core element of cultural identity is the traditional costumes that provide insight into the heritage that has been acquired over time. This heritage is apparent in the use of colour, the styles and the functions of the clothing and it also reflects the skills of those who created the items and the time taken to produce them. Modern flat pattern drafting methods for making garment patterns are simple in comparison to the relatively laborious traditional approaches that would require personal interaction with the wearer throughout the production process. The current study reflects on the main elements of the pattern cutting system and how this has evolved in Saudi Arabia to affect the design of the Sawan garment. Analysis of the traditional methods for constructing Sawan garments was undertaken through observation of the practice and the garments and consulting documented guidance. This provided a foundation through which to explore how modern technology can be applied to improve the process. In this research, modern methods are proposed for producing traditional Saudi garments more efficiently while retaining elements of the conventional style and design. The current study has documented the vital aspects of Sawan garment style. The result showed that the method had been used to take the body measurements and pattern making was elementary and offered simple geometric shape and the Sawan garment is composed of four pieces. Consequently, this research allows for classical pattern shapes to be embedded in garments now worn in Saudi Arabia and for the continuation of cultural heritage. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=traditional%20Sawan%20garment%20technique" title="traditional Sawan garment technique">traditional Sawan garment technique</a>, <a href="https://publications.waset.org/abstracts/search?q=modern%20pattern%20cutting%20technique" title=" modern pattern cutting technique"> modern pattern cutting technique</a>, <a href="https://publications.waset.org/abstracts/search?q=the%20shape%20of%20the%20garment%20and%20software" title=" the shape of the garment and software"> the shape of the garment and software</a>, <a href="https://publications.waset.org/abstracts/search?q=Lectra%20Modaris" title=" Lectra Modaris "> Lectra Modaris </a> </p> <a href="https://publications.waset.org/abstracts/115423/enhancing-traditional-saudi-designs-pattern-cutting-to-integrate-them-into-current-clothing-offers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/115423.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">132</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">246</span> Establishment of the Regression Uncertainty of the Critical Heat Flux Power Correlation for an Advanced Fuel Bundle</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=L.%20Q.%20Yuan">L. Q. Yuan</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Yang"> J. Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Siddiqui"> A. Siddiqui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A new regression uncertainty analysis methodology was applied to determine the uncertainties of the critical heat flux (CHF) power correlation for an advanced 43-element bundle design, which was developed by Canadian Nuclear Laboratories (CNL) to achieve improved economics, resource utilization and energy sustainability. The new methodology is considered more appropriate than the traditional methodology in the assessment of the experimental uncertainty associated with regressions. The methodology was first assessed using both the Monte Carlo Method (MCM) and the Taylor Series Method (TSM) for a simple linear regression model, and then extended successfully to a non-linear CHF power regression model (CHF power as a function of inlet temperature, outlet pressure and mass flow rate). The regression uncertainty assessed by MCM agrees well with that by TSM. An equation to evaluate the CHF power regression uncertainty was developed and expressed as a function of independent variables that determine the CHF power. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CHF%20experiment" title="CHF experiment">CHF experiment</a>, <a href="https://publications.waset.org/abstracts/search?q=CHF%20correlation" title=" CHF correlation"> CHF correlation</a>, <a href="https://publications.waset.org/abstracts/search?q=regression%20uncertainty" title=" regression uncertainty"> regression uncertainty</a>, <a href="https://publications.waset.org/abstracts/search?q=Monte%20Carlo%20Method" title=" Monte Carlo Method"> Monte Carlo Method</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor%20Series%20Method" title=" Taylor Series Method"> Taylor Series Method</a> </p> <a href="https://publications.waset.org/abstracts/77556/establishment-of-the-regression-uncertainty-of-the-critical-heat-flux-power-correlation-for-an-advanced-fuel-bundle" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77556.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">416</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">245</span> Analyzing Damage of the Cutting Tools out of Carbide Metallic during the Turning of a Soaked and Not Hardened Steel XC38 </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Seghouani">Mohamed Seghouani</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Tafraoui"> Ahmed Tafraoui</a>, <a href="https://publications.waset.org/abstracts/search?q=Soltane%20Lebaili"> Soltane Lebaili</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this study widened knowledge on the use of the cutting tools out of metal carbide and to define it the influence of the elements of the mode of cut on the behavior of these tools during the machining of treated steel XC38 and untreated. This work aims at evolution determined in experiments of the wear of a cutting tool out of metal carbide with plate reported of P30 nuance for an operation of slide-lathing in turning on soaked and not hardened steel XC38 test-tubes. This research is based on the model of Taylor to determine the life span of the cutting tool according to the various parameters of cut, like the cutting speed Vc, the advance of cut a, the depth of cutting P. In order to express the operational limits of the tool for slide-lathing in a preventive way. The model makes it possible to determine the time of change of the tool and to regard it as a constraint for the respect of the roughness of the workpiece during a work of series in conventional machining. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=machining" title="machining">machining</a>, <a href="https://publications.waset.org/abstracts/search?q=wear" title=" wear"> wear</a>, <a href="https://publications.waset.org/abstracts/search?q=lifespan" title=" lifespan"> lifespan</a>, <a href="https://publications.waset.org/abstracts/search?q=model%20of%20Taylor" title=" model of Taylor"> model of Taylor</a>, <a href="https://publications.waset.org/abstracts/search?q=cutting%20tool" title=" cutting tool"> cutting tool</a>, <a href="https://publications.waset.org/abstracts/search?q=carburize%20metal" title=" carburize metal"> carburize metal</a> </p> <a href="https://publications.waset.org/abstracts/21927/analyzing-damage-of-the-cutting-tools-out-of-carbide-metallic-during-the-turning-of-a-soaked-and-not-hardened-steel-xc38" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21927.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">390</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">244</span> Influence of a Pulsatile Electroosmotic Flow on the Dispersivity of a Non-Reactive Solute through a Microcapillary</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jaime%20Mu%C3%B1oz">Jaime Muñoz</a>, <a href="https://publications.waset.org/abstracts/search?q=Jos%C3%A9%20Arcos"> José Arcos</a>, <a href="https://publications.waset.org/abstracts/search?q=Oscar%20Bautista%20Federico%20M%C3%A9ndez"> Oscar Bautista Federico Méndez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The influence of a pulsatile electroosmotic flow (PEOF) at the rate of spread, or dispersivity, for a non-reactive solute released in a microcapillary with slippage at the boundary wall (modeled by the Navier-slip condition) is theoretically analyzed. Based on the flow velocity field developed under such conditions, the present study implements an analytical scheme of scaling known as the Theory of Homogenization, in order to obtain a mathematical expression for the dispersivity, valid at a large time scale where the initial transients have vanished and the solute spreads under the Taylor dispersion influence. Our results show the dispersivity is a function of a slip coefficient, the amplitude of the imposed electric field, the Debye length and the angular Reynolds number, highlighting the importance of the latter as an enhancement/detrimental factor on the dispersivity, which allows to promote the PEOF as a strong candidate for chemical species separation at lab-on-a-chip devices. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dispersivity" title="dispersivity">dispersivity</a>, <a href="https://publications.waset.org/abstracts/search?q=microcapillary" title=" microcapillary"> microcapillary</a>, <a href="https://publications.waset.org/abstracts/search?q=Navier-slip%20condition" title=" Navier-slip condition"> Navier-slip condition</a>, <a href="https://publications.waset.org/abstracts/search?q=pulsatile%20electroosmotic%20flow" title=" pulsatile electroosmotic flow"> pulsatile electroosmotic flow</a>, <a href="https://publications.waset.org/abstracts/search?q=Taylor%20dispersion" title=" Taylor dispersion"> Taylor dispersion</a>, <a href="https://publications.waset.org/abstracts/search?q=Theory%20of%20Homogenization" title=" Theory of Homogenization"> Theory of Homogenization</a> </p> <a href="https://publications.waset.org/abstracts/95021/influence-of-a-pulsatile-electroosmotic-flow-on-the-dispersivity-of-a-non-reactive-solute-through-a-microcapillary" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/95021.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">215</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">243</span> Implementation of a Lattice Boltzmann Method for Multiphase Flows with High Density Ratios</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Norjan%20Jumaa">Norjan Jumaa</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Graham"> David Graham</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We present a Lattice Boltzmann Method (LBM) for multiphase flows with high viscosity and density ratios. The motion of the interface between fluids is modelled by solving the Cahn-Hilliard (CH) equation with LBM. Incompressibility of the velocity fields in each phase is imposed by using a pressure correction scheme. We use a unified LBM approach with separate formulations for the phase field, the pressure less Naiver-Stokes (NS) equations and the pressure Poisson equation required for correction of the velocity field. The implementation has been verified for various test case. Here, we present results for some complex flow problems including two dimensional single and multiple mode Rayleigh-Taylor instability and we obtain good results when comparing with those in the literature. The main focus of our work is related to interactions between aerated or non-aerated waves and structures so we also present results for both high viscosity and low viscosity waves. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=lattice%20Boltzmann%20method" title="lattice Boltzmann method">lattice Boltzmann method</a>, <a href="https://publications.waset.org/abstracts/search?q=multiphase%20flows" title=" multiphase flows"> multiphase flows</a>, <a href="https://publications.waset.org/abstracts/search?q=Rayleigh-Taylor%20instability" title=" Rayleigh-Taylor instability"> Rayleigh-Taylor instability</a>, <a href="https://publications.waset.org/abstracts/search?q=waves" title=" waves"> waves</a> </p> <a href="https://publications.waset.org/abstracts/79505/implementation-of-a-lattice-boltzmann-method-for-multiphase-flows-with-high-density-ratios" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/79505.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">234</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">242</span> Heat and Mass Transfer of Triple Diffusive Convection in a Rotating Couple Stress Liquid Using Ginzburg-Landau Model </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sameena%20Tarannum">Sameena Tarannum</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Pranesh"> S. Pranesh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A nonlinear study of triple diffusive convection in a rotating couple stress liquid has been analysed. It is performed to study the effect of heat and mass transfer by deriving Ginzburg-Landau equation. Heat and mass transfer are quantified in terms of Nusselt number and Sherwood numbers, which are obtained as a function of thermal and solute Rayleigh numbers. The obtained Ginzburg-Landau equation is Bernoulli equation, and it has been elucidated numerically by using Mathematica. The effects of couple stress parameter, solute Rayleigh numbers, and Taylor number on the onset of convection and heat and mass transfer have been examined. It is found that the effects of couple stress parameter and Taylor number are to stabilize the system and to increase the heat and mass transfer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=couple%20stress%20liquid" title="couple stress liquid">couple stress liquid</a>, <a href="https://publications.waset.org/abstracts/search?q=Ginzburg-Landau%20model" title=" Ginzburg-Landau model"> Ginzburg-Landau model</a>, <a href="https://publications.waset.org/abstracts/search?q=rotation" title=" rotation"> rotation</a>, <a href="https://publications.waset.org/abstracts/search?q=triple%20diffusive%20convection" title=" triple diffusive convection"> triple diffusive convection</a> </p> <a href="https://publications.waset.org/abstracts/67604/heat-and-mass-transfer-of-triple-diffusive-convection-in-a-rotating-couple-stress-liquid-using-ginzburg-landau-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/67604.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">337</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">241</span> Experimental Investigations on the Mechanism of Stratified Liquid Mixing in a Cylinder</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chai%20Mingming">Chai Mingming</a>, <a href="https://publications.waset.org/abstracts/search?q=Li%20Lei"> Li Lei</a>, <a href="https://publications.waset.org/abstracts/search?q=Lu%20Xiaoxia"> Lu Xiaoxia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the mechanism of stratified liquids’ mixing in a cylinder is investigated. It is focused on the effects of Rayleigh-Taylor Instability (RTI) and rotation of the cylinder on liquid interface mixing. For miscible liquids, Planar Laser Induced Fluorescence (PLIF) technique is applied to record the concentration field for one liquid. Intensity of Segregation (IOS) is used to describe the mixing status. For immiscible liquids, High Speed Camera is adopted to record the development of the interface. The experiment of RTI indicates that it plays a great role in the mixing process, and meanwhile the large-scale mixing is triggered, and subsequently the span of the stripes decreases, showing that the mesoscale mixing is coming into being. The rotation experiments show that the spin-down process has a great role in liquid mixing, during which the upper liquid falls down rapidly along the wall and crashes into the lower liquid. During this process, a lot of interface instabilities are excited. Liquids mix rapidly in the spin-down process. It can be concluded that no matter what ways have been adopted to speed up liquid mixing, the fundamental reason is the interface instabilities which increase the area of the interface between liquids and increase the relative velocity of the two liquids. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=interface%20instability" title="interface instability">interface instability</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid%20mixing" title=" liquid mixing"> liquid mixing</a>, <a href="https://publications.waset.org/abstracts/search?q=Rayleigh-Taylor%20Instability" title=" Rayleigh-Taylor Instability"> Rayleigh-Taylor Instability</a>, <a href="https://publications.waset.org/abstracts/search?q=spin-down%20process" title=" spin-down process"> spin-down process</a>, <a href="https://publications.waset.org/abstracts/search?q=spin-up%20process" title=" spin-up process"> spin-up process</a> </p> <a href="https://publications.waset.org/abstracts/51374/experimental-investigations-on-the-mechanism-of-stratified-liquid-mixing-in-a-cylinder" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51374.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">300</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=Lisa%20Taylor&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Lisa%20Taylor&page=3">3</a></li> <li class="page-item"><a class="page-link" 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