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Cook</title> <meta name="description" content="Search results for: Ian Cook"> <meta name="keywords" content="Ian Cook"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" 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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="Ian Cook"> <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> 68</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Ian Cook</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">68</span> An Explorative Research on the Cook and Stewards Employment: Turkish Flagged Ship's Perspective</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mehmet%20Yahsi">Mehmet Yahsi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ozkan%20Ugurlu"> Ozkan Ugurlu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cabin department among the stewards and cooks on ships, has an important place in terms of a sufficient and qualified nutrition of seafarers. From this perspective, ships must be employed with a sufficient number of cabin department. In this study, in order to research on the Turkish-flagged ships cook and stewards employment; Our national manning regulation compared with international regulations. The data used in this study were collected via visiting of the ships. 3000 gross tonnage and above engaged in international voyages 181 Turkish-flagged ship’s crew lists were compared with Minimum Safety Manning Certificates. According to the findings; employment rates, %95,6 cook, and %50,8 steward. According to the results of the study; Turkish-flagged ships, although it is not obliged to cook and steward, were employed on ships. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=manning" title="manning">manning</a>, <a href="https://publications.waset.org/abstracts/search?q=cabin%20department" title=" cabin department"> cabin department</a>, <a href="https://publications.waset.org/abstracts/search?q=minimum%20safety%20manning%20certificate" title=" minimum safety manning certificate"> minimum safety manning certificate</a>, <a href="https://publications.waset.org/abstracts/search?q=Turkish%20flag" title=" Turkish flag"> Turkish flag</a> </p> <a href="https://publications.waset.org/abstracts/62714/an-explorative-research-on-the-cook-and-stewards-employment-turkish-flagged-ships-perspective" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62714.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">397</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">67</span> Numerical Simulation on Deformation Behaviour of Additively Manufactured AlSi10Mg Alloy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Racholsan%20Raj%20Nirmal">Racholsan Raj Nirmal</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20S.%20V.%20Patnaik"> B. S. V. Patnaik</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Jayaganthan"> R. Jayaganthan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The deformation behaviour of additively manufactured AlSi10Mg alloy under low strains, high strain rates and elevated temperature conditions is essential to analyse and predict its response against dynamic loading such as impact and thermomechanical fatigue. The constitutive relation of Johnson-Cook is used to capture the strain rate sensitivity and thermal softening effect in AlSi10Mg alloy. Johnson-Cook failure model is widely used for exploring damage mechanics and predicting the fracture in many materials. In this present work, Johnson-Cook material and damage model parameters for additively manufactured AlSi10Mg alloy have been determined numerically from four types of uniaxial tensile test. Three different uniaxial tensile tests with dynamic strain rates (0.1, 1, 10, 50, and 100 s<sup>-1</sup>) and elevated temperature tensile test with three different temperature conditions (450 K, 500 K and 550 K) were performed on 3D printed AlSi10Mg alloy in ABAQUS/Explicit. Hexahedral elements are used to discretize tensile specimens and fracture energy value of 43.6 kN/m was used for damage initiation. Levenberg Marquardt optimization method was used for the evaluation of Johnson-Cook model parameters. It was observed that additively manufactured AlSi10Mg alloy has shown relatively higher strain rate sensitivity and lower thermal stability as compared to the other Al alloys. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ABAQUS" title="ABAQUS">ABAQUS</a>, <a href="https://publications.waset.org/abstracts/search?q=additive%20manufacturing" title=" additive manufacturing"> additive manufacturing</a>, <a href="https://publications.waset.org/abstracts/search?q=AlSi10Mg" title=" AlSi10Mg"> AlSi10Mg</a>, <a href="https://publications.waset.org/abstracts/search?q=Johnson-Cook%20model" title=" Johnson-Cook model"> Johnson-Cook model</a> </p> <a href="https://publications.waset.org/abstracts/129677/numerical-simulation-on-deformation-behaviour-of-additively-manufactured-alsi10mg-alloy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/129677.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">170</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">66</span> Determination of Johnson-Cook Material and Failure Model Constants for High Tensile Strength Tendon Steel in Post-Tensioned Concrete Members</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=I.%20Gkolfinopoulos">I. Gkolfinopoulos</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Chijiwa"> N. Chijiwa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> To evaluate the remaining capacity in concrete tensioned members, it is important to accurately estimate damage in precast concrete tendons. In this research Johnson-Cook model and damage parameters of high-strength steel material were calculated by static and dynamic uniaxial tensile tests. Replication of experimental results was achieved through finite element analysis for both single 8-noded three-dimensional element as well as the full-scale dob-bone shaped model and relevant model parameters are proposed. Finally, simulation results in terms of strain and deformation were verified using digital image correlation analysis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DIC%20analysis" title="DIC analysis">DIC analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=Johnson-Cook" title=" Johnson-Cook"> Johnson-Cook</a>, <a href="https://publications.waset.org/abstracts/search?q=quasi-static" title=" quasi-static"> quasi-static</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamic" title=" dynamic"> dynamic</a>, <a href="https://publications.waset.org/abstracts/search?q=rupture" title=" rupture"> rupture</a>, <a href="https://publications.waset.org/abstracts/search?q=tendon" title=" tendon"> tendon</a> </p> <a href="https://publications.waset.org/abstracts/152866/determination-of-johnson-cook-material-and-failure-model-constants-for-high-tensile-strength-tendon-steel-in-post-tensioned-concrete-members" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152866.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">147</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">65</span> Obtaining Constants of Johnson-Cook Material Model Using a Combined Experimental, Numerical Simulation and Optimization Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=F.%20Rahimi%20Dehgolan">F. Rahimi Dehgolan</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Behzadi"> M. Behzadi</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Fathi%20Sola"> J. Fathi Sola</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this article, the Johnson-Cook material model’s constants for structural steel ST.37 have been determined by a method which integrates experimental tests, numerical simulation, and optimization. In the first step, a quasi-static test was carried out on a plain specimen. Next, the constants were calculated for it by minimizing the difference between the results acquired from the experiment and numerical simulation. Then, a quasi-static tension test was performed on three notched specimens with different notch radii. At last, in order to verify the results, they were used in numerical simulation of notched specimens and it was observed that experimental and simulation results are in good agreement. Changing the diameter size of the plain specimen in the necking area was set as the objective function in the optimization step. For final validation of the proposed method, diameter variation was considered as a parameter and its sensitivity to a change in any of the model constants was examined and the results were completely corroborating. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=constants" title="constants">constants</a>, <a href="https://publications.waset.org/abstracts/search?q=Johnson-Cook%20material%20model" title=" Johnson-Cook material model"> Johnson-Cook material model</a>, <a href="https://publications.waset.org/abstracts/search?q=notched%20specimens" title=" notched specimens"> notched specimens</a>, <a href="https://publications.waset.org/abstracts/search?q=quasi-static%20test" title=" quasi-static test"> quasi-static test</a>, <a href="https://publications.waset.org/abstracts/search?q=sensitivity" title=" sensitivity"> sensitivity</a> </p> <a href="https://publications.waset.org/abstracts/49772/obtaining-constants-of-johnson-cook-material-model-using-a-combined-experimental-numerical-simulation-and-optimization-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49772.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">311</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">64</span> Infrastructural Barriers to Engaged Learning in the South Pacific: A Mixed-Methods Study of Cook Islands Nurses' Attitudes towards Health Information Technology</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jonathan%20Frank">Jonathan Frank</a>, <a href="https://publications.waset.org/abstracts/search?q=Michelle%20Salmona"> Michelle Salmona</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We conducted quantitative and qualitative analyses of nurses’ perceived ease of use of electronic medical records and telemedicine in the Cook Islands. We examined antecedents of perceived ease of use through the lens of social construction of learning, and cultural diffusion. Our findings confirmed expected linkages between PEOU, attitudes and intentions. Interviews with nurses suggested infrastructural barriers to engaged learning. We discussed managerial implications of our findings, and areas of interest for future research. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=health%20information%20technology" title="health information technology">health information technology</a>, <a href="https://publications.waset.org/abstracts/search?q=ICT4D" title=" ICT4D"> ICT4D</a>, <a href="https://publications.waset.org/abstracts/search?q=TAM" title=" TAM"> TAM</a>, <a href="https://publications.waset.org/abstracts/search?q=developing%20countries" title=" developing countries"> developing countries</a> </p> <a href="https://publications.waset.org/abstracts/46512/infrastructural-barriers-to-engaged-learning-in-the-south-pacific-a-mixed-methods-study-of-cook-islands-nurses-attitudes-towards-health-information-technology" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46512.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">289</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">63</span> Three-Dimensional, Non-Linear Finite Element Analysis of Bullet Penetration through Thin AISI 4340 Steel Target Plate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abhishek%20Soni">Abhishek Soni</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Kumaraswamy"> A. Kumaraswamy</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20S.%20Mahesh"> M. S. Mahesh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Bullet penetration in steel plate is investigated with the help of three-dimensional, non-linear, transient, dynamic, finite elements analysis using explicit time integration code LSDYNA. The effect of large strain, strain-rate and temperature at very high velocity regime was studied from number of simulations of semi-spherical nose shape bullet penetration through single layered circular plate with 2 mm thickness at impact velocities of 500, 1000, and 1500 m/s with the help of Johnson Cook material model. Mie-Gruneisen equation of state is used in conjunction with Johnson Cook material model to determine pressure-volume relationship at various points of interests. Two material models viz. Plastic-Kinematic and Johnson- Cook resulted in different deformation patterns in steel plate. It is observed from the simulation results that the velocity drop and loss of kinetic energy occurred very quickly up to perforation of plate, after that the change in velocity and changes in kinetic energy are negligibly small. The physics behind this kind of behaviour is presented in the paper. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AISI%204340%20steel" title="AISI 4340 steel">AISI 4340 steel</a>, <a href="https://publications.waset.org/abstracts/search?q=ballistic%20impact%20simulation" title=" ballistic impact simulation"> ballistic impact simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=bullet%20penetration" title=" bullet penetration"> bullet penetration</a>, <a href="https://publications.waset.org/abstracts/search?q=non-linear%20FEM" title=" non-linear FEM"> non-linear FEM</a> </p> <a href="https://publications.waset.org/abstracts/82589/three-dimensional-non-linear-finite-element-analysis-of-bullet-penetration-through-thin-aisi-4340-steel-target-plate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82589.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">208</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">62</span> A Double Differential Chaos Shift Keying Scheme for Ultra-Wideband Chaotic Communication Technology Applied in Low-Rate Wireless Personal Area Network</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ghobad%20Gorji">Ghobad Gorji</a>, <a href="https://publications.waset.org/abstracts/search?q=Hasan%20Golabi"> Hasan Golabi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The goal of this paper is to describe the design of an ultra-wideband (UWB) system that is optimized for the low-rate wireless personal area network application. To this aim, we propose a system based on direct chaotic communication (DCC) technology. Based on this system, a 2-GHz wide chaotic signal is directly generated into the lower band of the UWB spectrum, i.e., 3.1–5.1 GHz. For this system, two simple modulation schemes, namely chaotic on-off keying (COOK) and differential chaos shift keying (DCSK), were studied before, and their performance was evaluated. We propose a modulation scheme, namely Double DCSK, to improve the performance of UWB DCC. Different characteristics of these systems, with Monte Carlo simulations based on the Additive White Gaussian Noise (AWGN) and the IEEE 802.15.4a standard channel models, are compared. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=UWB" title="UWB">UWB</a>, <a href="https://publications.waset.org/abstracts/search?q=DCC" title=" DCC"> DCC</a>, <a href="https://publications.waset.org/abstracts/search?q=IEEE%20802.15.4a" title=" IEEE 802.15.4a"> IEEE 802.15.4a</a>, <a href="https://publications.waset.org/abstracts/search?q=COOK" title=" COOK"> COOK</a>, <a href="https://publications.waset.org/abstracts/search?q=DCSK" title=" DCSK"> DCSK</a> </p> <a href="https://publications.waset.org/abstracts/160610/a-double-differential-chaos-shift-keying-scheme-for-ultra-wideband-chaotic-communication-technology-applied-in-low-rate-wireless-personal-area-network" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/160610.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">74</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">61</span> Tiaki Moemoeā: The Dream Keeper’s Role Within the Learning Journey of Cook Island Nursing Students</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yvonne%20Kainuku">Yvonne Kainuku</a>, <a href="https://publications.waset.org/abstracts/search?q=Wendy%20Trimmer"> Wendy Trimmer</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A critical element in closing the gaps in health disparities is the presence of a culturally appropriate health workforce. This study presents one of the findings from a qualitative study that explored the lived experiences of Cook Islands peoples during their three-year nursing training within a Bachelor of Nursing Pacific (BNP) programme in Aotearoa NZ. The study utilized both qualitative and context-specific methods; these included the Tivaevae Research Model and Qualitative Inquiry. The aim of the research was to collect stories from registered nurses about their experiences of culturally responsive pedagogy and their connection to content relating to Pacific world views and Pacific ways of knowing while they were students. Further to this, the researcher sought to recognize factors that supported the participant's successful completion of becoming a registered nurse. This study will introduce the theme of Tiaki moemoeā (dream keeper), identifying essential elements that engage learners along their journey. The various features that define the theme Tiaki moemoeā (dream keeper) have the potential to contribute to transformational change in nursing education training in Aotearoa, New Zealand. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=education" title="education">education</a>, <a href="https://publications.waset.org/abstracts/search?q=nursing" title=" nursing"> nursing</a>, <a href="https://publications.waset.org/abstracts/search?q=pacific" title=" pacific"> pacific</a>, <a href="https://publications.waset.org/abstracts/search?q=pedagogy" title=" pedagogy"> pedagogy</a> </p> <a href="https://publications.waset.org/abstracts/183697/tiaki-moemoea-the-dream-keepers-role-within-the-learning-journey-of-cook-island-nursing-students" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/183697.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">51</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">60</span> An Analysis of the Panel’s Perceptions on Cooking in “Metaverse Kitchen”</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Minsun%20Kim">Minsun Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study uses the concepts of augmented reality, virtual reality, mirror world, and lifelogging to describe “Metaverse Kitchen” that can be defined as a space in the virtual world where users can cook the dishes they want using the meal kit regardless of location or time. This study examined expert’s perceptions of cooking and food delivery services using "Metaverse Kitchen." In this study, a consensus opinion on the concept, potential pros, and cons of "Metaverse Kitchen" was derived from 20 culinary experts through the Delphi technique. The three Delphi rounds were conducted for one month, from December 2022 to January 2023. The results are as follows. First, users select and cook food after visiting the "Metaverse Kitchen" in the virtual space. Second, when a user cooks in "Metaverse Kitchen" in AR or VR, the information is transmitted to nearby restaurants. Third, the platform operating the "Metaverse Kitchen" assigns the order to the restaurant that can provide the meal kit cooked by the user in the virtual space first in the same way among these restaurants. Fourth, the user pays for the "Metaverse Kitchen", and the restaurant delivers the cooked meal kit to the user and then receives payment for the user's meal and delivery fee from the platform. Fifth, the platform company that operates the mirror world "Metaverse Kitchen" uses lifelogging to manage customers. They receive commissions from users and affiliated restaurants and operate virtual restaurant businesses using meal kits. Among the selection attributes for meal kits provided in "Metaverse Kitchen", the panelists suggested convenience, quality, and reliability as advantages and predicted relatively high price as a disadvantage. "Metaverse Kitchen" using meal kits is expected to form a new food supply system in the future society. In follow-up studies, an empirical analysis is required targeting producers and consumers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metaverse" title="metaverse">metaverse</a>, <a href="https://publications.waset.org/abstracts/search?q=meal%20kits" title=" meal kits"> meal kits</a>, <a href="https://publications.waset.org/abstracts/search?q=Delphi%20technique" title=" Delphi technique"> Delphi technique</a>, <a href="https://publications.waset.org/abstracts/search?q=Metaverse%20Kitchen" title=" Metaverse Kitchen"> Metaverse Kitchen</a> </p> <a href="https://publications.waset.org/abstracts/163574/an-analysis-of-the-panels-perceptions-on-cooking-in-metaverse-kitchen" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/163574.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">221</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">59</span> Robust ANOVA: An Illustrative Study in Horticultural Crop Research</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dinesh%20Inamadar">Dinesh Inamadar</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Venugopalan"> R. Venugopalan</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Padmini"> K. Padmini</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An attempt has been made in the present communication to elucidate the efficacy of robust ANOVA methods to analyze horticultural field experimental data in the presence of outliers. Results obtained fortify the use of robust ANOVA methods as there was substantiate reduction in error mean square, and hence the probability of committing Type I error, as compared to the regular approach. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=outliers" title="outliers">outliers</a>, <a href="https://publications.waset.org/abstracts/search?q=robust%20ANOVA" title=" robust ANOVA"> robust ANOVA</a>, <a href="https://publications.waset.org/abstracts/search?q=horticulture" title=" horticulture"> horticulture</a>, <a href="https://publications.waset.org/abstracts/search?q=cook%20distance" title=" cook distance"> cook distance</a>, <a href="https://publications.waset.org/abstracts/search?q=type%20I%20error" title=" type I error"> type I error</a> </p> <a href="https://publications.waset.org/abstracts/21320/robust-anova-an-illustrative-study-in-horticultural-crop-research" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21320.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">58</span> Experimental Investigation and Numerical Simulations of the Cylindrical Machining of a Ti-6Al-4V Tree</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Sahli">Mohamed Sahli</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Bassir"> David Bassir</a>, <a href="https://publications.waset.org/abstracts/search?q=Thierry%20Barriere"> Thierry Barriere</a>, <a href="https://publications.waset.org/abstracts/search?q=Xavier%20Roizard"> Xavier Roizard</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Predicting the behaviour of the Ti-6Al-4V alloy during the turning operation was very important in the choice of suitable cutting tools and also in the machining strategies. In this study, a 3D model with thermo-mechanical coupling has been proposed to study the influence of cutting parameters and also lubrication on the performance of cutting tools. The constants of the constitutive Johnson-Cook model of Ti-6Al-4V alloy were identified using inverse analysis based on the parameters of the orthogonal cutting process. Then, numerical simulations of the finishing machining operation were developed and experimentally validated for the cylindrical stock removal stage with the finishing cutting tool. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=titanium%20turning" title="titanium turning">titanium turning</a>, <a href="https://publications.waset.org/abstracts/search?q=cutting%20tools" title=" cutting tools"> cutting tools</a>, <a href="https://publications.waset.org/abstracts/search?q=FE%20simulation" title=" FE simulation"> FE simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=chip" title=" chip"> chip</a> </p> <a href="https://publications.waset.org/abstracts/131356/experimental-investigation-and-numerical-simulations-of-the-cylindrical-machining-of-a-ti-6al-4v-tree" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/131356.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">173</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">57</span> Thermomechanical Damage Modeling of F114 Carbon Steel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20El%20Amri">A. El Amri</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20El%20Yakhloufi%20Haddou"> M. El Yakhloufi Haddou</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Khamlichi"> A. Khamlichi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The numerical simulation based on the Finite Element Method (FEM) is widely used in academic institutes and in the industry. It is a useful tool to predict many phenomena present in the classical manufacturing forming processes such as fracture. But, the results of such numerical model depend strongly on the parameters of the constitutive behavior model. The influences of thermal and mechanical loads cause damage. The temperature and strain rate dependent materials’ properties and their modelling are discussed. A Johnson-Cook Model of damage has been selected for the numerical simulations. Virtual software called the ABAQUS 6.11 is used for finite element analysis. This model was introduced in order to give information concerning crack initiation during thermal and mechanical loads. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=thermo-mechanical%20fatigue" title="thermo-mechanical fatigue">thermo-mechanical fatigue</a>, <a href="https://publications.waset.org/abstracts/search?q=failure" title=" failure"> failure</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20simulation" title=" numerical simulation"> numerical simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=fracture" title=" fracture"> fracture</a>, <a href="https://publications.waset.org/abstracts/search?q=damage" title=" damage"> damage</a> </p> <a href="https://publications.waset.org/abstracts/46261/thermomechanical-damage-modeling-of-f114-carbon-steel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46261.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">393</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">56</span> Experimental Evaluation of Most Sustainable Companies: Impact on Economic Growth, Return on Equity (ROE) and Methodological Comparison</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Milena%20Serzante">Milena Serzante</a>, <a href="https://publications.waset.org/abstracts/search?q=Viktoriia%20Stankevich"> Viktoriia Stankevich</a>, <a href="https://publications.waset.org/abstracts/search?q=Yousre%20Badir"> Yousre Badir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Companies have a significant impact on the environment and society, and sustainability is important not only for ethical concerns but also for financial and economic reasons. The aim of the study is to analyze how the sustainable performance of the company impacts the economy and the business's economic performance. To achieve this goal, such methods as the Pearson correlation, Multiple Linear Regression, Cook's distance method, K-nearest neighbor and COPRAS technique were implemented. The results revealed that there is no significant correlation between different indicators of sustainable development of the company and both GDP and Return on Equity. It indicates that the methodology of evaluating sustainability causes the difference in ranking companies based on sustainable performance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=economic%20impact" title="economic impact">economic impact</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainability%20evaluation" title=" sustainability evaluation"> sustainability evaluation</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20companies" title=" sustainable companies"> sustainable companies</a>, <a href="https://publications.waset.org/abstracts/search?q=economic%20indicators" title=" economic indicators"> economic indicators</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainability" title=" sustainability"> sustainability</a>, <a href="https://publications.waset.org/abstracts/search?q=GDP" title=" GDP"> GDP</a>, <a href="https://publications.waset.org/abstracts/search?q=return%20on%20equity" title=" return on equity"> return on equity</a> </p> <a href="https://publications.waset.org/abstracts/167741/experimental-evaluation-of-most-sustainable-companies-impact-on-economic-growth-return-on-equity-roe-and-methodological-comparison" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/167741.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">91</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">55</span> New Dynamic Constitutive Model for OFHC Copper Film</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jin%20Sung%20Kim">Jin Sung Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Hoon%20Huh"> Hoon Huh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The material properties of OFHC copper film was investigated with the High-Speed Material Micro Testing Machine (HSMMTM) at the high strain rates. The rate-dependent stress-strain curves from the experiment and the Johnson-Cook curve fitting showed large discrepancies as the plastic strain increases since the constitutive model implies no rate-dependent strain hardening effect. A new constitutive model was proposed in consideration of rate-dependent strain hardening effect. The strain rate hardening term in the new constitutive model consists of the strain rate sensitivity coefficients of the yield strength and strain hardening. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rate%20dependent%20material%20properties" title="rate dependent material properties">rate dependent material properties</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamic%20constitutive%20model" title=" dynamic constitutive model"> dynamic constitutive model</a>, <a href="https://publications.waset.org/abstracts/search?q=OFHC%20copper%20film" title=" OFHC copper film"> OFHC copper film</a>, <a href="https://publications.waset.org/abstracts/search?q=strain%20rate" title=" strain rate"> strain rate</a> </p> <a href="https://publications.waset.org/abstracts/3721/new-dynamic-constitutive-model-for-ofhc-copper-film" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3721.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">486</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">54</span> High Strain Rate Behavior of Harmonic Structure Designed Pure Nickel: Mechanical Characterization Microstructure Analysis and 3D Modelisation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=D.%20Varadaradjou">D. Varadaradjou</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Kebir"> H. Kebir</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Mespoulet"> J. Mespoulet</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Tingaud"> D. Tingaud</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Bouvier"> S. Bouvier</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Deconick"> P. Deconick</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Ameyama"> K. Ameyama</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20Dirras"> G. Dirras</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The development of new architecture metallic alloys with controlled microstructures is one of the strategic ways for designing materials with high innovation potential and, particularly, with improved mechanical properties as required for structural materials. Indeed, unlike conventional counterparts, metallic materials having so-called harmonic structure displays strength and ductility synergy. The latter occurs due to a unique microstructure design: a coarse grain structure surrounded by a 3D continuous network of ultra-fine grain known as “core” and “shell,” respectively. In the present study, pure harmonic-structured (HS) Nickel samples were processed via controlled mechanical milling and followed by spark plasma sintering (SPS). The present work aims at characterizing the mechanical properties of HS pure Nickel under room temperature dynamic loading through a Split Hopkinson Pressure Bar (SHPB) test and the underlying microstructure evolution. A stopper ring was used to maintain the strain at a fixed value of about 20%. Five samples (named B1 to B5) were impacted using different striker bar velocities from 14 m/s to 28 m/s, yielding strain rate in the range 4000-7000 s-1. Results were considered until a 10% deformation value, which is the deformation threshold for the constant strain rate assumption. The non-deformed (INIT – post-SPS process) and post-SHPB microstructure (B1 to B5) were investigated by EBSD. It was observed that while the strain rate is increased, the average grain size within the core decreases. An in-depth analysis of grains and grain boundaries was made to highlight the thermal (such as dynamic recrystallization) or mechanical (such as grains fragmentation by dislocation) contribution within the “core” and “shell.” One of the most widely used methods for determining the dynamic behavior of materials is the SHPB technique developed by Kolsky. A 3D simulation of the SHPB test was created through ABAQUS in dynamic explicit. This 3D simulation allows taking into account all modes of vibration. An inverse approach was used to identify the material parameters from the equation of Johnson-Cook (JC) by minimizing the difference between the numerical and experimental data. The JC’s parameters were identified using B1 and B5 samples configurations. Predictively, identified parameters of JC’s equation shows good result for the other sample configuration. Furthermore, mean rise of temperature within the harmonic Nickel sample can be obtained through ABAQUS and show an elevation of about 35°C for all fives samples. At this temperature, a thermal mechanism cannot be activated. Therefore, grains fragmentation within the core is mainly due to mechanical phenomena for a fixed final strain of 20%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=3D%20simulation" title="3D simulation">3D simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=fragmentation" title=" fragmentation"> fragmentation</a>, <a href="https://publications.waset.org/abstracts/search?q=harmonic%20structure" title=" harmonic structure"> harmonic structure</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20strain%20rate" title=" high strain rate"> high strain rate</a>, <a href="https://publications.waset.org/abstracts/search?q=Johnson-cook%20model" title=" Johnson-cook model"> Johnson-cook model</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a> </p> <a href="https://publications.waset.org/abstracts/141948/high-strain-rate-behavior-of-harmonic-structure-designed-pure-nickel-mechanical-characterization-microstructure-analysis-and-3d-modelisation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/141948.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">231</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">53</span> Computational Approaches for Ballistic Impact Response of Stainless Steel 304</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Mostafa">A. Mostafa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a numerical study on determination of ballistic limit velocity (<em>V<sub>50</sub></em>) of stainless steel 304 (SS 304) used in manufacturing security screens. The simulated ballistic impact tests were conducted on clamped sheets with different thicknesses using ABAQUS/Explicit nonlinear finite element (FE) package. The ballistic limit velocity was determined using three approaches, namely: numerical tests based on material properties, FE calculated residual velocities and FE calculated residual energies. Johnson-Cook plasticity and failure criterion were utilized to simulate the dynamic behaviour of the SS 304 under various strain rates, while the well-known Lambert-Jonas equation was used for the data regression for the residual velocity and energy model. Good agreement between the investigated numerical methods was achieved. Additionally, the dependence of the ballistic limit velocity on the sheet thickness was observed. The proposed approaches present viable and cost-effective assessment methods of the ballistic performance of SS 304, which will support the development of robust security screen systems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ballistic%20velocity" title="ballistic velocity">ballistic velocity</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel" title=" stainless steel"> stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20approaches" title=" numerical approaches"> numerical approaches</a>, <a href="https://publications.waset.org/abstracts/search?q=security%20screen" title=" security screen"> security screen</a> </p> <a href="https://publications.waset.org/abstracts/125088/computational-approaches-for-ballistic-impact-response-of-stainless-steel-304" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/125088.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">52</span> Tool Damage and Adhesion Effects in Turning and Drilling of Hardened Steels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chris%20M.%20Taylor">Chris M. Taylor</a>, <a href="https://publications.waset.org/abstracts/search?q=Ian%20Cook"> Ian Cook</a>, <a href="https://publications.waset.org/abstracts/search?q=Raul%20Alegre"> Raul Alegre</a>, <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Arrazola"> Pedro Arrazola</a>, <a href="https://publications.waset.org/abstracts/search?q=Phil%20Spiers"> Phil Spiers</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Noteworthy results have been obtained in the turning and drilling of hardened high-strength steels using tungsten carbide based cutting tools. In a finish turning process, it was seen that surface roughness and tool flank wear followed very different trends against cutting time. The suggested explanation for this behaviour is that the profile cut into the workpiece surface is determined by the tool’s cutting edge profile. It is shown that the profile appearing on the cut surface changes rapidly over time, so the profile of the tool cutting edge should also be changing rapidly. Workpiece material adhered onto the cutting tool, which is also known as a built-up edge, is a phenomenon which could explain the observations made. In terms of tool damage modes, workpiece material adhesion is believed to have contributed to tool wear in examples provided from finish turning, thread turning and drilling. Additionally, evidence of tool fracture and tool abrasion were recorded. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=turning" title="turning">turning</a>, <a href="https://publications.waset.org/abstracts/search?q=drilling" title=" drilling"> drilling</a>, <a href="https://publications.waset.org/abstracts/search?q=adhesion" title=" adhesion"> adhesion</a>, <a href="https://publications.waset.org/abstracts/search?q=wear" title=" wear"> wear</a>, <a href="https://publications.waset.org/abstracts/search?q=hard%20steels" title=" hard steels"> hard steels</a> </p> <a href="https://publications.waset.org/abstracts/52027/tool-damage-and-adhesion-effects-in-turning-and-drilling-of-hardened-steels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52027.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">342</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">51</span> The Application of Conceptual Metaphor Theory to the Treatment of Depression</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Uma%20Kanth">Uma Kanth</a>, <a href="https://publications.waset.org/abstracts/search?q=Amy%20Cook"> Amy Cook</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Conceptual Metaphor Theory (CMT) proposes that metaphor is fundamental to human thought. CMT utilizes embodied cognition, in that emotions are conceptualized as effects on the body because of a coupling of one’s bodily experiences and one’s somatosensory system. Time perception is a function of embodied cognition and conceptual metaphor in that one’s experience of time is inextricably dependent on one’s perception of the world around them. A hallmark of depressive disorders is the distortion in one’s perception of time, such as neurological dysfunction and psychomotor retardation, and yet, to the author’s best knowledge, previous studies have not before linked CMT, embodied cognition, and depressive disorders. Therefore, the focus of this paper is the investigation of how the applications of CMT and embodied cognition (especially regarding time perception) have promise in improving current techniques to treat depressive disorders. This paper aimed to extend, through a thorough review of literature, the theoretical basis required to further research into CMT and embodied cognition’s application in treating time distortion related symptoms of depressive disorders. Future research could include the development of brain training technologies that capitalize on the principles of CMT, with the aim of promoting cognitive remediation and cognitive activation to mitigate symptoms of depressive disorder. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=depression" title="depression">depression</a>, <a href="https://publications.waset.org/abstracts/search?q=conceptual%20metaphor%20theory" title=" conceptual metaphor theory"> conceptual metaphor theory</a>, <a href="https://publications.waset.org/abstracts/search?q=embodied%20cognition" title=" embodied cognition"> embodied cognition</a>, <a href="https://publications.waset.org/abstracts/search?q=time" title=" time"> time</a> </p> <a href="https://publications.waset.org/abstracts/121588/the-application-of-conceptual-metaphor-theory-to-the-treatment-of-depression" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/121588.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">162</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">50</span> Elastic and Plastic Collision Comparison Using Finite Element Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gustavo%20Rodrigues">Gustavo Rodrigues</a>, <a href="https://publications.waset.org/abstracts/search?q=Hans%20Weber"> Hans Weber</a>, <a href="https://publications.waset.org/abstracts/search?q=Larissa%20Driemeier"> Larissa Driemeier</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The prevision of post-impact conditions and the behavior of the bodies during the impact have been object of several collision models. The formulation from Hertz’s theory is generally used dated from the 19<sup>th</sup> century. These models consider the repulsive force as proportional to the deformation of the bodies under contact and may consider it proportional to the rate of deformation. The objective of the present work is to analyze the behavior of the bodies during impact using the Finite Element Method (FEM) with elastic and plastic material models. The main parameters to evaluate are, the contact force, the time of contact and the deformation of the bodies. An advantage of using the FEM approach is the possibility to apply a plastic deformation to the model according to the material definition: there will be used Johnson–Cook plasticity model whose parameters are obtained through empirical tests of real materials. This model allows analyzing the permanent deformation caused by impact, phenomenon observed in real world depending on the forces applied to the body. These results are compared between them and with the model-based Hertz theory. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=collision" title="collision">collision</a>, <a href="https://publications.waset.org/abstracts/search?q=impact%20models" title=" impact models"> impact models</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20method" title=" finite element method"> finite element method</a>, <a href="https://publications.waset.org/abstracts/search?q=Hertz%20Theory" title=" Hertz Theory"> Hertz Theory</a> </p> <a href="https://publications.waset.org/abstracts/96447/elastic-and-plastic-collision-comparison-using-finite-element-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/96447.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">175</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">49</span> Prediction and Optimization of Machining Induced Residual Stresses in End Milling of AISI 1045 Steel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wajid%20Ali%20Khan">Wajid Ali Khan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Extensive experimentation and numerical investigation are performed to predict the machining-induced residual stresses in the end milling of AISI 1045 steel, and an optimization code has been developed using the particle swarm optimization technique. Experiments were conducted using a single factor at a time and design of experiments approach. Regression analysis was done, and a mathematical model of the cutting process was developed, thus predicting the machining-induced residual stress with reasonable accuracy. The mathematical model served as the objective function to be optimized using particle swarm optimization. The relationship between the different cutting parameters and the output variables, force, and residual stresses has been studied. The combined effect of the process parameters, speed, feed, and depth of cut was examined, and it is understood that 85% of the variation of these variables can be attributed to these machining parameters under research. A 3D finite element model is developed to predict the cutting forces and the machining-induced residual stresses in end milling operation. The results were validated experimentally and against the Johnson-cook model available in the literature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=residual%20stresses" title="residual stresses">residual stresses</a>, <a href="https://publications.waset.org/abstracts/search?q=end%20milling" title=" end milling"> end milling</a>, <a href="https://publications.waset.org/abstracts/search?q=1045%20steel" title=" 1045 steel"> 1045 steel</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a> </p> <a href="https://publications.waset.org/abstracts/157047/prediction-and-optimization-of-machining-induced-residual-stresses-in-end-milling-of-aisi-1045-steel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/157047.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">102</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">48</span> Behavior on Nutritious Food: An Analysis of Newly Affluent Millionaire of Kathmandu Valley, Nepal</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Babita%20Adhikari">Babita Adhikari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There is a general assumption that affluent people consume a variety of balanced nutritious foods on a regular basis, such as fruits, whole grains, lean meat, nuts, and fresh vegetables, because they have greater affordability and market accessibility. A simple random sampling technique and an open-ended questionnaire were used for this study. Findings showed that high socioeconomic status (SES) people in Kathmandu were more concerned with expensive foods, fruits, and vegetables, regardless of their nutrient content. New millionaire groups in Kathmandu are aware of the importance of nutrition and healthy well-being, but their purchasing and consumption habits differ from general perceptions as they learn about fast-food and restaurant culture. On the home front, they buy, cook, and eat expensive foods but are unaware of their nutrient contents. The study critically examines attributes that influence purchase decisions for nutritious and healthy foods in Kathmandu. Despite the fact that a significant amount of literature helps to comprehend that food has to be good in taste, healthy, and affordable, the major driver of food purchases is still the desire to consume. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nutritious%20food" title="nutritious food">nutritious food</a>, <a href="https://publications.waset.org/abstracts/search?q=consumer%20behavior" title=" consumer behavior"> consumer behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=nutrition" title=" nutrition"> nutrition</a>, <a href="https://publications.waset.org/abstracts/search?q=food%20behavior" title=" food behavior"> food behavior</a> </p> <a href="https://publications.waset.org/abstracts/172969/behavior-on-nutritious-food-an-analysis-of-newly-affluent-millionaire-of-kathmandu-valley-nepal" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/172969.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">68</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">47</span> Effects of Repeated High Loadings on the Performance of Adhesively-Bonded Single Lap Joints</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Orkun%20Yavuz">Orkun Yavuz</a>, <a href="https://publications.waset.org/abstracts/search?q=Ferhat%20Kadio%C4%9Flu"> Ferhat Kadioğlu</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Emin%20Ercan"> M. Emin Ercan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aims to investigate the effects of repeated high loadings on the performance of adhesively-bonded Single Lap Joints (SLJs) by employing both experimental and numerical approaches. A projectile with a mass of 1.25 gr and density of 11.3 gr/cm3 was fired at the joints with a velocity of about 280 m/s using a specially designed experimental set-up, and the impact was recorded via a high-speed camera. The SLJs were manufactured from 6061 aluminum adherend (AA6061) material and an adhesive film. The joints, which have an adherend thickness of 4 mm and overlap length of 15 mm, were subjected to up to 3 shots for the ballistic test, followed by quasi-static tensile testing. The impacted joints, then, were compared to the non-impacted and one-shot impacted ones, which was a subject of investigation carried out before. It was found that while the joints subjected to 2 shots mechanically deteriorated, those subjected to 3 shots experienced a complete failure at the end of the experiment. A numerical study was also conducted using an ABAQUS package program. While the adherends were modelled using the Johnson-Cook deformation parameters, an elastoplastic behavior of the adhesive was used as input data in the analyses. It seems the experimental results confirm the numerical ones. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ballistic%20tests" title="ballistic tests">ballistic tests</a>, <a href="https://publications.waset.org/abstracts/search?q=adhesive%20joints" title=" adhesive joints"> adhesive joints</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20analysis" title=" numerical analysis"> numerical analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=SLJ" title=" SLJ"> SLJ</a> </p> <a href="https://publications.waset.org/abstracts/180863/effects-of-repeated-high-loadings-on-the-performance-of-adhesively-bonded-single-lap-joints" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/180863.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">64</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">46</span> Comparison of Johnson-Cook and Barlat Material Model for 316L Stainless Steel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yi%C4%9Fit%20G%C3%BCrler">Yiğit Gürler</a>, <a href="https://publications.waset.org/abstracts/search?q=%C4%B0brahim%20%C5%9Eim%C5%9Fek"> İbrahim Şimşek</a>, <a href="https://publications.waset.org/abstracts/search?q=M%C3%BCge%20Sava%C5%9Ftaer"> Müge Savaştaer</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayberk%20Karaku%C5%9F"> Ayberk Karakuş</a>, <a href="https://publications.waset.org/abstracts/search?q=Alper%20Ta%C5%9Fdemirci"> Alper Taşdemirci</a> </p> <p class="card-text"><strong>Abstract:</strong></p> 316L steel is frequently used in the industry due to its easy formability and accessibility in sheet metal forming processes. Numerical and experimental studies are frequently encountered in the literature to examine the mechanical behavior of 316L stainless steel during the forming process. 316L stainless steel is the most common material used in the production of plate heat exchangers and plate heat exchangers are produced by plastic deformation of the stainless steel. The motivation in this study is to determine the appropriate material model during the simulation of the sheet metal forming process. For this reason, two different material models were examined and Ls-Dyna material cards were created using material test data. These are MAT133_BARLAT_YLD2000 and MAT093_SIMPLIFIED_JOHNSON_COOK. In order to compare results of the tensile test & hydraulic bulge test performed both numerically and experimentally. The obtained results were evaluated comparatively and the most suitable material model was selected for the forming simulation. In future studies, this material model will be used in the numerical modeling of the sheet metal forming process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=316L" title="316L">316L</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20characterization" title=" mechanical characterization"> mechanical characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=metal%20forming" title=" metal forming"> metal forming</a>, <a href="https://publications.waset.org/abstracts/search?q=Ls-Dyna" title=" Ls-Dyna"> Ls-Dyna</a> </p> <a href="https://publications.waset.org/abstracts/142507/comparison-of-johnson-cook-and-barlat-material-model-for-316l-stainless-steel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/142507.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">334</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">45</span> Development and Usability Assessment of a Connected Resistance Exercise Band Application for Strength-Monitoring</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20A.%20Batsis">J. A. Batsis</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20G.%20Boateng"> G. G. Boateng</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20M.%20Seo"> L. M. Seo</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20L.%20Petersen"> C. L. Petersen</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20L.%20Fortuna"> K. L. Fortuna</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20V.%20Wechsler"> E. V. Wechsler</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20J.%20Peterson"> R. J. Peterson</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20B.%20Cook"> S. B. Cook</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Pidgeon"> D. Pidgeon</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20S.%20Dokko"> R. S. Dokko</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20J.%20Halter"> R. J. Halter</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20F.%20Kotz"> D. F. Kotz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Resistance exercise bands are a core component of any physical activity strengthening program. Strength training can mitigate the development of sarcopenia, the loss of muscle mass or strength and function with aging. Yet, the adherence of such behavioral exercise strategies in a home-based setting are fraught with issues of monitoring and compliance. Our group developed a Bluetooth-enabled resistance exercise band capable of transmitting data to an open-source platform. In this work, we developed an application to capture this information in real-time, and conducted three usability studies in two mixed-aged groups of participants (n=6 each) and a group of older adults with obesity participating in a weight-loss intervention (n=20). The system was favorable, acceptable and provided iterative information that could assist in future deployment on ubiquitous platforms. Our formative work provides the foundation to deliver home-based monitoring interventions in a high-risk, older adult population. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=application" title="application">application</a>, <a href="https://publications.waset.org/abstracts/search?q=mHealth" title=" mHealth"> mHealth</a>, <a href="https://publications.waset.org/abstracts/search?q=older%20adult" title=" older adult"> older adult</a>, <a href="https://publications.waset.org/abstracts/search?q=resistance%20exercise%20band" title=" resistance exercise band"> resistance exercise band</a>, <a href="https://publications.waset.org/abstracts/search?q=sarcopenia" title=" sarcopenia"> sarcopenia</a> </p> <a href="https://publications.waset.org/abstracts/101717/development-and-usability-assessment-of-a-connected-resistance-exercise-band-application-for-strength-monitoring" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/101717.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">44</span> Analyzing the Factors that Cause Parallel Performance Degradation in Parallel Graph-Based Computations Using Graph500</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mustafa%20Elfituri">Mustafa Elfituri</a>, <a href="https://publications.waset.org/abstracts/search?q=Jonathan%20Cook"> Jonathan Cook</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, graph-based computations have become more important in large-scale scientific computing as they can provide a methodology to model many types of relations between independent objects. They are being actively used in fields as varied as biology, social networks, cybersecurity, and computer networks. At the same time, graph problems have some properties such as irregularity and poor locality that make their performance different than regular applications performance. Therefore, parallelizing graph algorithms is a hard and challenging task. Initial evidence is that standard computer architectures do not perform very well on graph algorithms. Little is known exactly what causes this. The Graph500 benchmark is a representative application for parallel graph-based computations, which have highly irregular data access and are driven more by traversing connected data than by computation. In this paper, we present results from analyzing the performance of various example implementations of Graph500, including a shared memory (OpenMP) version, a distributed (MPI) version, and a hybrid version. We measured and analyzed all the factors that affect its performance in order to identify possible changes that would improve its performance. Results are discussed in relation to what factors contribute to performance degradation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=graph%20computation" title="graph computation">graph computation</a>, <a href="https://publications.waset.org/abstracts/search?q=graph500%20benchmark" title=" graph500 benchmark"> graph500 benchmark</a>, <a href="https://publications.waset.org/abstracts/search?q=parallel%20architectures" title=" parallel architectures"> parallel architectures</a>, <a href="https://publications.waset.org/abstracts/search?q=parallel%20programming" title=" parallel programming"> parallel programming</a>, <a href="https://publications.waset.org/abstracts/search?q=workload%20characterization." title=" workload characterization."> workload characterization.</a> </p> <a href="https://publications.waset.org/abstracts/133666/analyzing-the-factors-that-cause-parallel-performance-degradation-in-parallel-graph-based-computations-using-graph500" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/133666.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">147</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">43</span> Numerical Study of Steel Structures Responses to External Explosions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Abdallah">Mohammad Abdallah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Due to the constant increase in terrorist attacks, the research and engineering communities have given significant attention to building performance under explosions. This paper presents a methodology for studying and simulating the dynamic responses of steel structures during external detonations, particularly for accurately investigating the impact of incrementing charge weight on the members total behavior, resistance and failure. Prediction damage method was introduced to evaluate the damage level of the steel members based on five scenarios of explosions. Johnson–Cook strength and failure model have been used as well as ABAQUS finite element code to simulate the explicit dynamic analysis, and antecedent field tests were used to verify the acceptance and accuracy of the proposed material strength and failure model. Based on the structural response, evaluation criteria such as deflection, vertical displacement, drift index, and damage level; the obtained results show the vulnerability of steel columns and un-braced steel frames which are designed and optimized to carry dead and live load to resist and endure blast loading. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=steel%20structure" title="steel structure">steel structure</a>, <a href="https://publications.waset.org/abstracts/search?q=blast%20load" title=" blast load"> blast load</a>, <a href="https://publications.waset.org/abstracts/search?q=terrorist%20attacks" title=" terrorist attacks"> terrorist attacks</a>, <a href="https://publications.waset.org/abstracts/search?q=charge%20weight" title=" charge weight"> charge weight</a>, <a href="https://publications.waset.org/abstracts/search?q=damage%20level" title=" damage level"> damage level</a> </p> <a href="https://publications.waset.org/abstracts/69100/numerical-study-of-steel-structures-responses-to-external-explosions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/69100.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">364</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">42</span> Factors Influencing the Choice of Food Intake of Students of the Federal Polytechnic, Bida, Niger State, Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adekunle%20Ayodeji%20Folorunso">Adekunle Ayodeji Folorunso</a>, <a href="https://publications.waset.org/abstracts/search?q=Aisha%20S.%20Habeeb"> Aisha S. Habeeb</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this study was to determine the factors influencing the student’s choice of food intake, a case study of the Federal Polytechnic, Bida. A review of the past work was done, and many key points were noted. A sample population of 1000 students was selected randomly (i.e. 200 students from each school) who were in the 2011/2012 academic session. The factor influencing the students' foods intake ranges from economic factors (food cost, income, availability of food), physical factors (easy to cook, shortest time), social factors (cultural, family and meal pattern) attitudes, belief and knowledge about food were discovered. The data collected were tabulated in frequency and percentages. It was revealed that ‘easy method of cooking and preparation’ influenced students’ choice of food intake more (34%) and the food frequency questionnaire shows that the students eat more of carbohydrates foods compared to other classes of food. The cooking skills of students were low (1%) which may be responsible for the limitations in the food choices. It is, therefore, recommended that students should be equipped with sound cooking skills to increase their range of food intake. Variety is needed in diet/meal because the required nutrients are scattered among many different foods. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=factors" title="factors">factors</a>, <a href="https://publications.waset.org/abstracts/search?q=food%20intake" title=" food intake"> food intake</a>, <a href="https://publications.waset.org/abstracts/search?q=influencing" title=" influencing"> influencing</a>, <a href="https://publications.waset.org/abstracts/search?q=choice" title=" choice"> choice</a>, <a href="https://publications.waset.org/abstracts/search?q=students" title=" students"> students</a> </p> <a href="https://publications.waset.org/abstracts/79387/factors-influencing-the-choice-of-food-intake-of-students-of-the-federal-polytechnic-bida-niger-state-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/79387.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">333</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">41</span> Dynamics of Marital Status and Information Search through Consumer Generated Media: An Exploratory Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shivkumar%20Krishnamurti">Shivkumar Krishnamurti</a>, <a href="https://publications.waset.org/abstracts/search?q=Ruchi%20Agarwal"> Ruchi Agarwal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study examines the influence of marital status on consumers of products and services using blogs as a source of information. A pre-designed questionnaire was used to collect the primary data from the respondents (experiences). Data were collected from one hundred and eighty seven respondents residing in and around the Emirates of Sharjah and Dubai of the United Arab Emirates. The collected data was analyzed with the help of statistical tools such as averages, percentages, factor analysis, student’s t-test and structural equation modeling technique. Objectives of the study are to know the reasons how married and unmarried or single consumers of products and services are motivated to use blogs as a source of information, to know whether the consumers of products and services irrespective of their marital status share their views and experiences with other bloggers and to know the respondents’ future intentions towards blogging. The study revealed the following: Majority of the respondents have the motivation to blog because they are willing to receive comments on what they post about services, convenience of blogs to search for information about services and products, by blogging respondents share information on the symptoms of a disease/ disorder that may be experienced by someone, helps to share information about ready to cook mix products and are keen to spend more time blogging in the future. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=blog" title="blog">blog</a>, <a href="https://publications.waset.org/abstracts/search?q=consumer" title=" consumer"> consumer</a>, <a href="https://publications.waset.org/abstracts/search?q=information" title=" information"> information</a>, <a href="https://publications.waset.org/abstracts/search?q=marital%20status" title=" marital status"> marital status</a> </p> <a href="https://publications.waset.org/abstracts/13622/dynamics-of-marital-status-and-information-search-through-consumer-generated-media-an-exploratory-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13622.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">385</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">40</span> Effect of Chitosan and Ascorbic Acid Coating on the Refrigerated Tilapia Fish Fillet (Oreochromis niliticus)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jau-Shya%20Lee">Jau-Shya Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Rossita%20Shapawi"> Rossita Shapawi</a>, <a href="https://publications.waset.org/abstracts/search?q=Vin%20Cent%20Pua"> Vin Cent Pua</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Tilapia is a popular cultured fresh-water fish in Malaysia. The highly perishable nature of the fish and increasing demand for high-quality ready-to-cook fish has intensified the search for better fish preservation method. Chitosan edible coating has been evident to extend the shelf life of fish fillet. This work was attempted to explore the potential of ascorbic acid in enhancing the shelf life extension ability of chitosan coated Tilapia fillet under refrigeration condition (4 ± 1oC). A 3 2 Factorial Design which comprising of three concentrations of chitosan (1, 1.5 and 2%) and two concentrations of ascorbic acids (2.5 and 5%) was used. The fish fillets were analyzed for total viable count, thiobarbituric acid (TBA) value, pH, aw and colour changes at 3-day interval over 15-day storage. The shelf life of chitosan coated (1.5% and 2%) fillet was increased to 15 days as compared to uncoated fish fillet which can only last for nine days. The inhibition of microbial growth of fish fillet was enhanced with the addition of 5% of ascorbic acids in 2% of chitosan. The TBA value, pH and aw for chitosan coated samples were found lower than that of uncoated sample (p<0.05). The colour stability of the fish fillet was also improved by the composite coating. Overall, 2% of chitosan and 5% of ascorbic acid formed the most effective coating to enhance the quality and to lengthen the shelf life of refrigerated Tilapia fillet. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ascorbic%20acid" title="ascorbic acid">ascorbic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=chitosan" title=" chitosan"> chitosan</a>, <a href="https://publications.waset.org/abstracts/search?q=edible%20coating" title=" edible coating"> edible coating</a>, <a href="https://publications.waset.org/abstracts/search?q=fish%20fillet" title=" fish fillet"> fish fillet</a> </p> <a href="https://publications.waset.org/abstracts/74929/effect-of-chitosan-and-ascorbic-acid-coating-on-the-refrigerated-tilapia-fish-fillet-oreochromis-niliticus" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74929.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">394</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">39</span> Analysis of Structure-Flow Interaction for Water Brake Mechanism</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Murat%20Avci">Murat Avci</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatih%20Kosar"> Fatih Kosar</a>, <a href="https://publications.waset.org/abstracts/search?q=Ismail%20Yilmaz"> Ismail Yilmaz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, structure-flow interaction for water brake mechanism is studied with Abaqus CEL approach. The water brake mechanism is used for dynamic systems such as sled system on rail. For the achievement of these system tests, structure-flow interaction should be investigated in detail. This study is about a sled test of an aircraft subsystem which rises to supersonic speeds thanks to rocket engines. To decrease or to stop the thrusting rocket sleds, water brake mechanisms are used. Water brake mechanism provides the deceleration of the structures that have supersonic speeds. Therefore, structure-flow interaction may cause damage to the water brake mechanism. To verify all design revisions with system tests are so costly so that some decisions are taken in accordance with numerical methods. In this study, structure-flow interaction that belongs to water brake mechanism is solved with Abaqus CEL approach. Fluid and deformation on the structure behaviors are modeled at the same time thanks to CEL approach. Provided analysis results are corrected with the dynamic tests. Deformation zones seen in numerical analysis are also observed in dynamic tests. Finally, Johnson-Cook material model parameters used for this analysis are proven, and it is understood that these parameters can be used for dynamic analysis like water brake mechanism. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aircraft" title="aircraft">aircraft</a>, <a href="https://publications.waset.org/abstracts/search?q=rocket" title=" rocket"> rocket</a>, <a href="https://publications.waset.org/abstracts/search?q=structure-flow" title=" structure-flow"> structure-flow</a>, <a href="https://publications.waset.org/abstracts/search?q=supersonic" title=" supersonic"> supersonic</a> </p> <a href="https://publications.waset.org/abstracts/104502/analysis-of-structure-flow-interaction-for-water-brake-mechanism" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104502.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right 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