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Hyeon</title> <meta name="description" content="Search results for: Jin Yi Hyeon"> <meta name="keywords" content="Jin Yi Hyeon"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" type="button" data-toggle="collapse" data-target="#navbarMenu" aria-controls="navbarMenu" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="w-100"> <div class="d-none d-lg-flex flex-row-reverse"> <form method="get" action="https://waset.org/search" class="form-inline my-2 my-lg-0"> <input class="form-control mr-sm-2" type="search" placeholder="Search Conferences" value="Jin Yi Hyeon" name="q" aria-label="Search"> <button class="btn btn-light my-2 my-sm-0" type="submit"><i class="fas fa-search"></i></button> </form> </div> <div class="collapse navbar-collapse mt-1" id="navbarMenu"> <ul class="navbar-nav ml-auto align-items-center" id="mainNavMenu"> <li class="nav-item"> <a class="nav-link" href="https://waset.org/conferences" title="Conferences in 2024/2025/2026">Conferences</a> </li> <li class="nav-item"> <a class="nav-link" href="https://waset.org/disciplines" title="Disciplines">Disciplines</a> </li> <li 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Jin Yi Hyeon"> <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> 67</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Jin Yi Hyeon</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">67</span> Development of Standard Evaluation Technique for Car Carpet Floor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=In-Sung%20Lee">In-Sung Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Un-Hwan%20Park"> Un-Hwan Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Jun-Hyeok%20Heo"> Jun-Hyeok Heo</a>, <a href="https://publications.waset.org/abstracts/search?q=Tae-Hyeon%20Oh"> Tae-Hyeon Oh</a>, <a href="https://publications.waset.org/abstracts/search?q=Dae-Gyu%20Park"> Dae-Gyu Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Statistical Energy Analysis is to be the most effective CAE Method for air-born noise analysis in the Automotive area. This study deals with a method to predict the noise level inside of the car under the steady-state condition using the SEA model of car for air-born noise analysis. We can identify weakened part due to the acoustic material properties using it. Therefore, it is useful for the material structural design. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=air-born%20noise" title="air-born noise">air-born noise</a>, <a href="https://publications.waset.org/abstracts/search?q=material%20structural%20design" title=" material structural design"> material structural design</a>, <a href="https://publications.waset.org/abstracts/search?q=acoustic%20material%20properties" title=" acoustic material properties"> acoustic material properties</a>, <a href="https://publications.waset.org/abstracts/search?q=absorbing" title=" absorbing"> absorbing</a> </p> <a href="https://publications.waset.org/abstracts/51024/development-of-standard-evaluation-technique-for-car-carpet-floor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51024.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">424</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> Removal of P-Nitrophenol in Wastewater by Using Fe-Nano Zeolite Synthesized</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pham-Thi%20Huong">Pham-Thi Huong</a>, <a href="https://publications.waset.org/abstracts/search?q=Byeong-Kyu%20Lee"> Byeong-Kyu Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Chi-Hyeon%20Lee"> Chi-Hyeon Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=JiTae%20Kim"> JiTae Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study analyzed the removal of p-nitrophenol from wastewater using Fe-nano zeolite synthesized. The basic physical-chemical properties of Fe-nano zeolite was determined by X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy. We focus on finding out the optimum conditions in adsorption and desorption processes for removal of p-nitrophenol by using Fe-nano zeolite in wastewater. The optimum pH for p-nitrophenol removal in wastewater was 5.0. Adsorption isotherms were better fitted with the Langmuir isotherm than with the Freundlich with 165.58 mg/g adsorption capacity of p-nitrophenol. These findings support potential of Fe-nano zeolite as an effective adsorbent for p-nitrophenol removal from wastewater. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fe-nano%20zeolite" title="Fe-nano zeolite">Fe-nano zeolite</a>, <a href="https://publications.waset.org/abstracts/search?q=adsorption" title=" adsorption"> adsorption</a>, <a href="https://publications.waset.org/abstracts/search?q=wastewater" title=" wastewater"> wastewater</a>, <a href="https://publications.waset.org/abstracts/search?q=regeneration" title=" regeneration"> regeneration</a> </p> <a href="https://publications.waset.org/abstracts/44511/removal-of-p-nitrophenol-in-wastewater-by-using-fe-nano-zeolite-synthesized" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44511.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">65</span> Development of Verification System of Workspace Clashes Between Construction Activities</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyeon-Seung%20Kim">Hyeon-Seung Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Sang-Mi%20Park"> Sang-Mi Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Min-Seo%20Kim"> Min-Seo Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jong-Myeung%20Shin"> Jong-Myeung Shin</a>, <a href="https://publications.waset.org/abstracts/search?q=Leen-Seok%20Kang"> Leen-Seok Kang </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, the use of Building Information Modeling (BIM) in public construction works has become mandatory in some countries and it is anticipated that BIM will be applied to the actual field of civil engineering projects. However, the BIM system is still focused on the architectural project and the design phase. Because the civil engineering project is linear type project and is focused on the construction phase comparing with architectural project, 3D simulation is difficult to visualize them. This study suggests a method and a prototype system to solve workspace conflictions among construction activities using BIM simulation tool. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=BIM" title="BIM">BIM</a>, <a href="https://publications.waset.org/abstracts/search?q=workspace" title=" workspace"> workspace</a>, <a href="https://publications.waset.org/abstracts/search?q=confliction" title=" confliction"> confliction</a>, <a href="https://publications.waset.org/abstracts/search?q=visualization" title=" visualization "> visualization </a> </p> <a href="https://publications.waset.org/abstracts/30716/development-of-verification-system-of-workspace-clashes-between-construction-activities" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30716.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">408</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> Enhancement of CO2 Capture by Using Cu-Nano-Zeolite Synthesized</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pham-Thi%20Huong">Pham-Thi Huong</a>, <a href="https://publications.waset.org/abstracts/search?q=Byeong-Kyu%20Lee"> Byeong-Kyu Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Chi-Hyeon%20Lee"> Chi-Hyeon Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Jitae%20Kim"> Jitae Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study synthesized Cu-nano-zeolite was evaluated for its potential use in CO2 capture. The specific surface area of Cu-nano zeolite was measured as 869.32 m2/g with a pore size of 3.86 nm. The adsorption capacity of CO2 by Cu-nano zeolite was decreased with increasing temperature. The identified adsorption capacity of CO2 by Cu-nano zeolite was 7.16 mmol/g at a temperature of 20 oC and at pressure of 1 atm. The adoption selectivity of CO2 over N2 strongly depend on the temperature and the highest selectivity by Cu-nano zeolite was 50.71 at 20 oC. From analysis of regeneration characteristics of CO2 loaded adsorbent, the percentage removal of CO2 was maintained at more than 78.2 % even after 10 cycles of adsorption-desorption. Based on these result, the Cu-nano zeolite can be used as an effective and economical adsorbent for CO2 capture. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CO2%20capture" title="CO2 capture">CO2 capture</a>, <a href="https://publications.waset.org/abstracts/search?q=selectivity" title=" selectivity"> selectivity</a>, <a href="https://publications.waset.org/abstracts/search?q=Cu-nano%20zeolite" title=" Cu-nano zeolite"> Cu-nano zeolite</a>, <a href="https://publications.waset.org/abstracts/search?q=regeneration." title=" regeneration. "> regeneration. </a> </p> <a href="https://publications.waset.org/abstracts/44457/enhancement-of-co2-capture-by-using-cu-nano-zeolite-synthesized" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44457.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">322</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> Construction Information Visualization System Using nD CAD Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyeon-seoung%20Kim">Hyeon-seoung Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Sang-mi%20Park"> Sang-mi Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Sun-ju%20Han"> Sun-ju Han</a>, <a href="https://publications.waset.org/abstracts/search?q=Leen-seok%20Kang"> Leen-seok Kang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The visualization technology of construction information using 3D and nD modeling can satisfy the visualization needs of each construction project participant. The nD CAD system is a tool that the construction information, such as construction schedule, cost and resource utilization, are simulated by 4D, 5D and 6D object formats based on 3D object. This study developed a methodology and simulation engine for nD CAD system for construction project management. It has improved functions such as built-in schedule generation, cost simulation of changed budget and built-in resource allocation comparing with the current systems. To develop an integrated nD CAD system, this study attempts an integrated method to link 5D and 6D objects based on 4D object. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=building%20information%20modeling" title="building information modeling">building information modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=visual%20simulation" title=" visual simulation"> visual simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=3D%20object" title=" 3D object"> 3D object</a>, <a href="https://publications.waset.org/abstracts/search?q=nD%20CAD%20augmented%20reality" title=" nD CAD augmented reality"> nD CAD augmented reality</a> </p> <a href="https://publications.waset.org/abstracts/43696/construction-information-visualization-system-using-nd-cad-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43696.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">312</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">62</span> The Optimization Design of Sound Absorbing for Automotive Interior Material</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Un-Hwan%20Park">Un-Hwan Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Jun-Hyeok%20Heo"> Jun-Hyeok Heo</a>, <a href="https://publications.waset.org/abstracts/search?q=In-Sung%20Lee"> In-Sung Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Tae-Hyeon%20Oh"> Tae-Hyeon Oh</a>, <a href="https://publications.waset.org/abstracts/search?q=Dae-Gyu%20Park"> Dae-Gyu Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nonwoven fabric such as an automobile interior material becomes consists of several material layers required for the sound-absorbing function. Because several material layers, many experimental tuning is required to achieve the target of sound absorption. Therefore, a lot of time and money is spent in the development of the car interior materials. In this study, we present the method to predict the sound-absorbing performance of the various layers with physical properties of each material. and we will verify it with the measured value of a prototype. If the sound absorption can be estimated, it can be optimized without a number of tuning tests of the interiors. So, it can reduce the development cost and time during development <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=automotive%20interior%20material" title="automotive interior material">automotive interior material</a>, <a href="https://publications.waset.org/abstracts/search?q=sound%20absorbing" title=" sound absorbing"> sound absorbing</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization%20design" title=" optimization design"> optimization design</a>, <a href="https://publications.waset.org/abstracts/search?q=nonwoven%20fabric" title=" nonwoven fabric"> nonwoven fabric</a> </p> <a href="https://publications.waset.org/abstracts/51023/the-optimization-design-of-sound-absorbing-for-automotive-interior-material" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51023.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">837</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> BIM Application and Construction Schedule Simulation for the Horizontal Work Area</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyeon-Seong%20Kim">Hyeon-Seong Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Sang-Mi%20Park"> Sang-Mi Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Seul-Gi%20Kim"> Seul-Gi Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Seon-Ju%20Han"> Seon-Ju Han</a>, <a href="https://publications.waset.org/abstracts/search?q=Leen-Seok%20Kang"> Leen-Seok Kang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The use of BIM, including 4D CAD system, in a construction project is gradually increasing. Since the building construction works repeatedly in the vertical space, it is relatively easy to confirm the interference effect when applying the BIM, but the interference effect for the civil engineering project is relatively small because the civil works perform non-repetitive processes in the horizontal space. For this reason, it is desirable to apply BIM to the construction phase when applying BIM to the civil engineering project, and the most active BIM tool applied to the construction phase is the 4D CAD function for the schedule management. This paper proposes the application procedure of BIM by the construction phase of civil engineering project and a linear 4D CAD construction methodology suitable for the civil engineering project in which linear work is performed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=BIM" title="BIM">BIM</a>, <a href="https://publications.waset.org/abstracts/search?q=4D%20CAD" title=" 4D CAD"> 4D CAD</a>, <a href="https://publications.waset.org/abstracts/search?q=linear%204D%20simulation" title=" linear 4D simulation"> linear 4D simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=VR" title=" VR"> VR</a> </p> <a href="https://publications.waset.org/abstracts/83745/bim-application-and-construction-schedule-simulation-for-the-horizontal-work-area" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/83745.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">60</span> Improvement in Ni (II) Adsorption Capacity by Using Fe-Nano Zeolite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pham-Thi%20Huong">Pham-Thi Huong</a>, <a href="https://publications.waset.org/abstracts/search?q=Byeong-Kyu%20Lee"> Byeong-Kyu Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Jitae%20Kim"> Jitae Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Chi-Hyeon%20Lee"> Chi-Hyeon Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fe-nano zeolite adsorbent was used for removal of Ni (II) ions from aqueous solution. The adsorbent was characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and the surface area Brunauer–Emmett–Teller (BET) using for analysis of functional groups, morphology and surface area. Bath adsorption experiments were analyzed on the effect of pH, time, adsorbent doses and initial Ni (II) concentration. The optimum pH for Ni (II) removal using Fe-nano zeolite was found at 5.0 and 90 min of reaction time. The maximum adsorption capacity of Ni (II) was 231.68 mg/g based on the Langmuir isotherm. The kinetics data for the adsorption process was fitted with the pseudo-second-order model. The desorption of Ni (II) from Ni-loaded Fe-nano zeolite was analyzed and even after 10 cycles 72 % desorption was achieved. These finding supported that Fe-nano zeolite with high adsorption capacity, high reuse ability would be utilized for Ni (II) removal from water. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fe-nano%20zeolite" title="Fe-nano zeolite">Fe-nano zeolite</a>, <a href="https://publications.waset.org/abstracts/search?q=adsorption" title=" adsorption"> adsorption</a>, <a href="https://publications.waset.org/abstracts/search?q=Ni%20%28II%29%20removal" title=" Ni (II) removal"> Ni (II) removal</a>, <a href="https://publications.waset.org/abstracts/search?q=regeneration" title=" regeneration"> regeneration</a> </p> <a href="https://publications.waset.org/abstracts/44506/improvement-in-ni-ii-adsorption-capacity-by-using-fe-nano-zeolite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44506.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">232</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> Development of Construction Cost Optimization System Using Genetic Algorithm Method </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyeon-Seung%20Kim">Hyeon-Seung Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Young-Hwan%20Kim"> Young-Hwan Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Sang-Mi%20Park"> Sang-Mi Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Min-Seo%20Kim"> Min-Seo Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jong-Myeung%20Shin"> Jong-Myeung Shin</a>, <a href="https://publications.waset.org/abstracts/search?q=Leen-Seok%20Kang"> Leen-Seok Kang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The project budget at the planned stage might be changed by the insufficient government budget or the design change. There are many cases more especially in the case of a project performed for a long period of time. If the actual construction budget is insufficient comparing with the planned budget, the construction schedule should also be changed to match the changed budget. In that case, most project managers change the planned construction schedule by a heuristic approach without a reasonable consideration on the work priority. This study suggests an optimized methodology to modify the construction schedule according to the changed budget. The genetic algorithm was used to optimize the modified construction schedule within the changed budget. And a simulation system of construction cost histogram in accordance with the construction schedule was developed in the BIM (Building Information Modeling) environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=5D" title="5D">5D</a>, <a href="https://publications.waset.org/abstracts/search?q=BIM" title=" BIM"> BIM</a>, <a href="https://publications.waset.org/abstracts/search?q=GA" title=" GA"> GA</a>, <a href="https://publications.waset.org/abstracts/search?q=cost%20optimization" title=" cost optimization"> cost optimization</a> </p> <a href="https://publications.waset.org/abstracts/18622/development-of-construction-cost-optimization-system-using-genetic-algorithm-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18622.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">588</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> Measurements of Flow Mixing Behaviors Using a Wire-Mesh Sensor in a Wire-Wrapped 37-Pin Rod Assembly</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyungmo%20Kim">Hyungmo Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Hwang%20Bae"> Hwang Bae</a>, <a href="https://publications.waset.org/abstracts/search?q=Seok-Kyu%20Chang"> Seok-Kyu Chang</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong%20Won%20Lee"> Dong Won Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Yung%20Joo%20Ko"> Yung Joo Ko</a>, <a href="https://publications.waset.org/abstracts/search?q=Sun%20Rock%20Choi"> Sun Rock Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hae%20Seob%20Choi"> Hae Seob Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyeon%20Seok%20Woo"> Hyeon Seok Woo</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong-Jin%20Euh"> Dong-Jin Euh</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyeong-Yeon%20Lee"> Hyeong-Yeon Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Flow mixing characteristics in the wire-wrapped 37-pin rod bundle were measured by using a wire-mesh sensing system for a sodium-cooled fast reactor (SFR). The subchannel flow mixing in SFR core subchannels was an essential characteristic for verification of a core thermal design and safety analysis. A dedicated test facility including the wire-mesh sensor system and tracing liquid injection system was developed, and the conductivity fields at the end of 37-pin rod bundle were visualized in several different flow conditions. These experimental results represented the reasonable agreements with the results of CFD, and the uncertainty of the mixing experiments has been conducted to evaluate the experimental results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=core%20thermal%20design" title="core thermal design">core thermal design</a>, <a href="https://publications.waset.org/abstracts/search?q=flow%20mixing" title=" flow mixing"> flow mixing</a>, <a href="https://publications.waset.org/abstracts/search?q=a%20wire-mesh%20sensor" title=" a wire-mesh sensor"> a wire-mesh sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=a%20wire-wrap%20effect" title=" a wire-wrap effect"> a wire-wrap effect</a> </p> <a href="https://publications.waset.org/abstracts/23655/measurements-of-flow-mixing-behaviors-using-a-wire-mesh-sensor-in-a-wire-wrapped-37-pin-rod-assembly" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23655.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">629</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> A Study on Bicycle Riding Behavior on Bike-Only Road</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyeon%20Jong%20Yoo">Hyeon Jong Yoo</a>, <a href="https://publications.waset.org/abstracts/search?q=Jae%20Hwan%20Yang"> Jae Hwan Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong%20Kyu%20Kim"> Dong Kyu Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, riding a bicycle is recommended as an eco-friendly means of transportation. In Seoul, the mayor has secured budget for extending bicycle infrastructure. As bicycle rental centers are adopted in places, more citizens are using bike rental service on bike-only roads for leisure. However, most of the citizens are not experienced in riding bicycles. They usually do not wear helmets, keep the balance of bicycle riding, and pay attention to nearby occasions. Therefore, in this study, bicycles on Han-river bike-only road were tracked, and their behaviors were analyzed in order to show how dangerously beginner riders are riding. The number of conflicts is calculated to evaluate riding safety on the most crowded bike-only road. As a result, conflicts between beginner riders and fast-driving skilled drivers are frequently observed especially at night, and on weekends. In conclusion, it is suggested that the government should acknowledge citizens the fact that bikes are vehicles and adopt a test for bike driving. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bicycles" title="bicycles">bicycles</a>, <a href="https://publications.waset.org/abstracts/search?q=safety" title=" safety"> safety</a>, <a href="https://publications.waset.org/abstracts/search?q=bike-only%20road" title=" bike-only road"> bike-only road</a>, <a href="https://publications.waset.org/abstracts/search?q=policy%20proposal" title=" policy proposal"> policy proposal</a> </p> <a href="https://publications.waset.org/abstracts/80506/a-study-on-bicycle-riding-behavior-on-bike-only-road" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80506.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">359</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">56</span> A Study on Optimum Shape in According to Equivalent Stress Distributions at the Die and Plug in the Multi-Pass Drawing Process</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yeon-Jong%20Jeong">Yeon-Jong Jeong</a>, <a href="https://publications.waset.org/abstracts/search?q=Mok-Tan%20Ahn"> Mok-Tan Ahn</a>, <a href="https://publications.waset.org/abstracts/search?q=Seok-Hyeon%20Park"> Seok-Hyeon Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Seong-Hun%20Ha"> Seong-Hun Ha</a>, <a href="https://publications.waset.org/abstracts/search?q=Joon-Hong%20Park"> Joon-Hong Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Jong-Bae%20Park"> Jong-Bae Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Multi-stage drawing process is an important technique for forming a shape that cannot be molded in a single process. multi-stage drawing process in number of passes and the shape of the die are an important factors influencing the productivity and formability of the product. The number and shape of the multi-path in the mold of the drawing process is very influencing the productivity and formability of the product. Half angle of the die and mandrel affects the drawing force and it also affects the completion of the final shape. Thus reducing the number of pass and the die shape optimization are necessary to improve the formability of the billet. Analyzing the load on the die through the FEM analysis and in consideration of the formability of the material presents a die model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=multi-pass%20shape%20drawing" title="multi-pass shape drawing">multi-pass shape drawing</a>, <a href="https://publications.waset.org/abstracts/search?q=equivalent%20stress" title=" equivalent stress"> equivalent stress</a>, <a href="https://publications.waset.org/abstracts/search?q=FEM" title=" FEM"> FEM</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=optimum%20shape" title=" optimum shape"> optimum shape</a> </p> <a href="https://publications.waset.org/abstracts/60708/a-study-on-optimum-shape-in-according-to-equivalent-stress-distributions-at-the-die-and-plug-in-the-multi-pass-drawing-process" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60708.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">481</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">55</span> Cognitive Characteristics of Industrial Workers in Fuzzy Risk Assessment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyeon-Kyo%20Lim">Hyeon-Kyo Lim</a>, <a href="https://publications.waset.org/abstracts/search?q=Sang-Hun%20Byun"> Sang-Hun Byun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Risk assessment is carried out in most industrial plants for accident prevention, but there exists insufficient data for statistical decision making. It is commonly said that risk can be expressed as a product of consequence and likelihood of a corresponding hazard factor. Eventually, therefore, risk assessment involves human decision making which cannot be objective per se. This study was carried out to comprehend perceptive characteristics of human beings in industrial plants. Subjects were shown a set of illustrations describing scenes of industrial plants, and were asked to assess the risk of each scene with not only linguistic variables but also numeric scores in the aspect of consequence and likelihood. After that, their responses were formulated as fuzzy membership functions, and compared with those of university students who had no experience of industrial works. The results showed that risk level of industrial workers were lower than those of any other groups, which implied that the workers might generally have a tendency to neglect more hazard factors in their work fields. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fuzzy" title="fuzzy">fuzzy</a>, <a href="https://publications.waset.org/abstracts/search?q=hazard" title=" hazard"> hazard</a>, <a href="https://publications.waset.org/abstracts/search?q=linguistic%20variable" title=" linguistic variable"> linguistic variable</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20assessment" title=" risk assessment"> risk assessment</a> </p> <a href="https://publications.waset.org/abstracts/90930/cognitive-characteristics-of-industrial-workers-in-fuzzy-risk-assessment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90930.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">255</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> Characteristic of Ta Alloy Coating Films on Near-Net Shape with Different Current Densities Using MARC Process</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Young%20Jun%20Lee">Young Jun Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Tae%20Hyuk%20Lee"> Tae Hyuk Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Kyoung%20Tae%20Park"> Kyoung Tae Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Jong%20Hyeon%20Lee"> Jong Hyeon Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The harsh atmosphere of the sulfur-iodine process used for producing hydrogen requires better corrosion resistance and mechanical properties that is possible to obtain with pure tantalum. Ta-W alloy is superior to pure tantalum but is difficult to alloy due to its high melting temperature. In this study, substrates of near-net shape (Swagelok® tube ISSG8UT4) were coated with Ta-W using the multi-anode reactive alloy coating (MARC) process in molten salt (LiF-NaF-K2TaF7) at different current densities (1, 2 and 4mA/cm2). Ta-4W coating films of uniform coating thicknesses, without any entrapped salt, were successfully deposited on Swagelok tube by electrodeposition at 1 mA/cm2. The resulting coated film with a corrosion rate of less than 0.011 mm/year was attained in hydriodic acid at 160°C, and hardness up to 12.9 % stronger than pure tantalum coated film. The alloy coating films also contributed to significant enhancement of corrosion resistance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=tantalum" title="tantalum">tantalum</a>, <a href="https://publications.waset.org/abstracts/search?q=tantalum%20alloy" title=" tantalum alloy"> tantalum alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=tungsten%20alloy" title=" tungsten alloy"> tungsten alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=electroplating" title=" electroplating"> electroplating</a> </p> <a href="https://publications.waset.org/abstracts/32956/characteristic-of-ta-alloy-coating-films-on-near-net-shape-with-different-current-densities-using-marc-process" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32956.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">423</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> Shape Optimization of a Hole for Water Jetting in a Spudcan for a Jack-Up Rig</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Han%20Ik%20Park">Han Ik Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Jeong%20Hyeon%20Seong"> Jeong Hyeon Seong</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong%20Seop%20Han"> Dong Seop Han</a>, <a href="https://publications.waset.org/abstracts/search?q=Su-Chul%20Shin"> Su-Chul Shin</a>, <a href="https://publications.waset.org/abstracts/search?q=Young%20Chul%20Park"> Young Chul Park </a> </p> <p class="card-text"><strong>Abstract:</strong></p> A Spudcan is mounted on the lower leg of the jack-up rig, a device for preventing a rollover of a structure and to support the structure in a stable sea floor. At the time of inserting the surface of the spud can to penetrate when the sand layer is stable and smoothly pulled to the clay layer, and at that time of recovery when uploading the spud can is equipped with a water injection device. In this study, it is significant to optimize the shape of pipelines holes for water injection device and it was set in two kinds of shape, the oval and round. Interpretation of the subject into the site of Gulf of Mexico offshore Wind Turbine Installation Vessels (WTIV)was chosen as a target platform. Using the ANSYS Workbench commercial programs, optimal design was conducted. The results of this study can be applied to the hole-shaped design of various marine structures. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=kriging%20method" title="kriging method">kriging method</a>, <a href="https://publications.waset.org/abstracts/search?q=jack-up%20rig" title=" jack-up rig"> jack-up rig</a>, <a href="https://publications.waset.org/abstracts/search?q=shape%20optimization" title=" shape optimization"> shape optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=spudcan" title=" spudcan "> spudcan </a> </p> <a href="https://publications.waset.org/abstracts/31207/shape-optimization-of-a-hole-for-water-jetting-in-a-spudcan-for-a-jack-up-rig" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31207.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">508</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> Separation of Hazardous Brominated Plastics from Waste Plastics by Froth Flotation after Surface Modification with Mild Heat-Treatment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nguyen%20Thi%20Thanh%20Truc">Nguyen Thi Thanh Truc</a>, <a href="https://publications.waset.org/abstracts/search?q=Chi-Hyeon%20Lee"> Chi-Hyeon Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Srinivasa%20Reddy%20Mallampati"> Srinivasa Reddy Mallampati</a>, <a href="https://publications.waset.org/abstracts/search?q=Byeong-Kyu%20Lee"> Byeong-Kyu Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study evaluated to facilitate separation of ABS plastics from other waste plastics by froth flotation after surface hydrophilization of ABS with heat treatment. The mild heat treatment at 100oC for 60s could selectively increase the hydrophilicity of the ABS plastics surface (i.e., ABS contact angle decreased from 79o to 65.8o) among other plastics mixture. The SEM and XPS results of plastic samples sufficiently supported the increase in hydrophilic functional groups and decrease contact angle on ABS surface, after heat treatment. As a result of the froth flotation (at mixing speed 150 rpm and airflow rate 0.3 L/min) after heat treatment, about 85% of ABS was selectively separated from other heavy plastics with 100% of purity. The effect of optimum treatment condition and detailed mechanism onto separation efficiency in the froth floatation was also investigated. This research is successful in giving a simple, effective, and inexpensive method for ABS separation from waste plastics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ABS" title="ABS">ABS</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrophilic" title=" hydrophilic"> hydrophilic</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20treatment" title=" heat treatment"> heat treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=froth%20flotation" title=" froth flotation"> froth flotation</a>, <a href="https://publications.waset.org/abstracts/search?q=contact%20angle" title=" contact angle"> contact angle</a> </p> <a href="https://publications.waset.org/abstracts/32214/separation-of-hazardous-brominated-plastics-from-waste-plastics-by-froth-flotation-after-surface-modification-with-mild-heat-treatment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32214.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">359</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">51</span> Electromagnetic Interference Shielding Effectiveness of a Corrugated Rectangular Waveguide for a Microwave Conveyor-Belt Drier </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sang-Hyeon%20Bae">Sang-Hyeon Bae</a>, <a href="https://publications.waset.org/abstracts/search?q=Sung-Yeon%20Kim"> Sung-Yeon Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Min-Gyo%20Jeong"> Min-Gyo Jeong</a>, <a href="https://publications.waset.org/abstracts/search?q=Ji-Hong%20Kim"> Ji-Hong Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Wang-Sang%20Lee"> Wang-Sang Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Traditional heating methods such as electric ovens or steam heating are slow and not very efficient. For continuously heating the objects, a microwave conveyor-belt drier is widely used in the industrial microwave heating systems. However, there is a problem in which electromagnetic wave leaks toward outside of the heating cavity through the insertion opening. To achieve the prevention of the leakage of microwaves and improved heating characteristics, the corrugated rectangular waveguide at the entrance and exit openings of a microwave conveyor-belt drier is proposed and its electromagnetic interference (EMI) shielding effectiveness is analyzed and verified. The corrugated waveguides in the proposed microwave heating system achieve at least 20 dB shielding effectiveness while ensuring a sufficient height of the openings. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=corrugated" title="corrugated">corrugated</a>, <a href="https://publications.waset.org/abstracts/search?q=electromagnetic%20wave" title=" electromagnetic wave"> electromagnetic wave</a>, <a href="https://publications.waset.org/abstracts/search?q=microwave%20conveyor-belt%20drier" title=" microwave conveyor-belt drier"> microwave conveyor-belt drier</a>, <a href="https://publications.waset.org/abstracts/search?q=rectangular%20waveguide" title=" rectangular waveguide"> rectangular waveguide</a>, <a href="https://publications.waset.org/abstracts/search?q=shielding%20effectiveness" title=" shielding effectiveness"> shielding effectiveness</a> </p> <a href="https://publications.waset.org/abstracts/62070/electromagnetic-interference-shielding-effectiveness-of-a-corrugated-rectangular-waveguide-for-a-microwave-conveyor-belt-drier" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62070.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">517</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> Performance Analysis of Heterogeneous Cellular Networks with Multiple Connectivity</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sungkyung%20Kim">Sungkyung Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jee-Hyeon%20Na"> Jee-Hyeon Na</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong-Seung%20Kwon"> Dong-Seung Kwon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Future mobile networks following 5th generation will be characterized by one thousand times higher gains in capacity; connections for at least one hundred billion devices; user experience capable of extremely low latency and response times. To be close to the capacity requirements and higher reliability, advanced technologies have been studied, such as multiple connectivity, small cell enhancement, heterogeneous networking, and advanced interference and mobility management. This paper is focused on the multiple connectivity in heterogeneous cellular networks. We investigate the performance of coverage and user throughput in several deployment scenarios. Using the stochastic geometry approach, the SINR distributions and the coverage probabilities are derived in case of dual connection. Also, to compare the user throughput enhancement among the deployment scenarios, we calculate the spectral efficiency and discuss our results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heterogeneous%20networks" title="heterogeneous networks">heterogeneous networks</a>, <a href="https://publications.waset.org/abstracts/search?q=multiple%20connectivity" title=" multiple connectivity"> multiple connectivity</a>, <a href="https://publications.waset.org/abstracts/search?q=small%20cell%20enhancement" title=" small cell enhancement"> small cell enhancement</a>, <a href="https://publications.waset.org/abstracts/search?q=stochastic%20geometry" title=" stochastic geometry"> stochastic geometry</a> </p> <a href="https://publications.waset.org/abstracts/25414/performance-analysis-of-heterogeneous-cellular-networks-with-multiple-connectivity" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25414.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">331</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">49</span> Fragility Analysis of Weir Structure Subjected to Flooding Water Damage</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Oh%20Hyeon%20Jeon">Oh Hyeon Jeon</a>, <a href="https://publications.waset.org/abstracts/search?q=WooYoung%20Jung"> WooYoung Jung</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, seepage analysis was performed by the level difference between upstream and downstream of weir structure for safety evaluation of weir structure against flooding. Monte Carlo Simulation method was employed by considering the probability distribution of the adjacent ground parameter, i.e., permeability coefficient of weir structure. Moreover, by using a commercially available finite element program (ABAQUS), modeling of the weir structure is carried out. Based on this model, the characteristic of water seepage during flooding was determined at each water level with consideration of the uncertainty of their corresponding permeability coefficient. Subsequently, fragility function could be constructed based on this response from numerical analysis; this fragility function results could be used to determine the weakness of weir structure subjected to flooding disaster. They can also be used as a reference data that can comprehensively predict the probability of failur,e and the degree of damage of a weir structure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=weir%20structure" title="weir structure">weir structure</a>, <a href="https://publications.waset.org/abstracts/search?q=seepage" title=" seepage"> seepage</a>, <a href="https://publications.waset.org/abstracts/search?q=flood%20disaster%20fragility" title=" flood disaster fragility"> flood disaster fragility</a>, <a href="https://publications.waset.org/abstracts/search?q=probabilistic%20risk%20assessment" title=" probabilistic risk assessment"> probabilistic risk assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=Monte-Carlo%20simulation" title=" Monte-Carlo simulation"> Monte-Carlo simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=permeability%20coefficient" title=" permeability coefficient"> permeability coefficient</a> </p> <a href="https://publications.waset.org/abstracts/88549/fragility-analysis-of-weir-structure-subjected-to-flooding-water-damage" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/88549.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">352</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> Anti-Melanogenic Effect of Fisetin through Activating Connective Tissue Growth Factor in vivo Mice Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ryeong-Hyeon%20Kim">Ryeong-Hyeon Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Ah-Reum%20%20Lee"> Ah-Reum Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Seong-Soo%20Roh"> Seong-Soo Roh</a>, <a href="https://publications.waset.org/abstracts/search?q=Gyo-Nam%20Kim"> Gyo-Nam Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Appropriate regulation of melanogenesis is important for the management of skin pigmentation-related disease. Although several beneficial effects of fisetin (3,7,3’,4’-tetrahydroxyflavone) have been reported, the precise role and molecular mechanisms of fisetin in skin health both remain unclear. Here, we induced melanogenesis of HRM2 mice (n=7/group) by UVB irradiation for 20 days. UVB-induced HRM2 mice showed that the significantly increased melanin accumulation, however, fisetin treatment (25mg and 50mg/kg of body weight) dose-dependently and significantly inhibits UVB-induced melanogenesis. In line with this, fisetin treatment effectively down-regulated m RNA and expression levels of tyrosinase, TRP2, and MITF. In addition, our inhibitor assay revealed the down-regulated melanogenic marker genes by fisetin treatment were mediated with connective tissue growth factor (CCN2)/TGF-β signaling pathway. Useful information is provided for development of functional foods using fisetin for skin health. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=connective%20tissue%20growth%20factor" title="connective tissue growth factor">connective tissue growth factor</a>, <a href="https://publications.waset.org/abstracts/search?q=fisetin" title=" fisetin"> fisetin</a>, <a href="https://publications.waset.org/abstracts/search?q=melanogenesis" title=" melanogenesis"> melanogenesis</a>, <a href="https://publications.waset.org/abstracts/search?q=skin" title=" skin"> skin</a>, <a href="https://publications.waset.org/abstracts/search?q=TGF-beta" title=" TGF-beta"> TGF-beta</a> </p> <a href="https://publications.waset.org/abstracts/54426/anti-melanogenic-effect-of-fisetin-through-activating-connective-tissue-growth-factor-in-vivo-mice-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54426.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">236</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> Optimal Design of Shape for Increasing the Bonding Pressure Drawing of Hot Clad Pipes by Finite Element Method Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seok-Hyeon%20Park">Seok-Hyeon Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Joon-Hong%20Park"> Joon-Hong Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Mok-Tan-Ahn"> Mok-Tan-Ahn</a>, <a href="https://publications.waset.org/abstracts/search?q=Seong-Hun%20Ha"> Seong-Hun Ha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Clad Pipe is made of a different kind of material, which is different from the internal and external materials, for the corrosive crude oil transportation tube. Most of the clad pipes are produced by hot rolling. However, problems arise due to high product prices and excessive process numbers. Therefore, in this study, the hot drawing process with excellent product cost, process number and productivity is applied. Due to the nature of the drawing process, the shape of the mold greatly influences the formability of the material and the bonding pressure of the two materials because it is a process of drawing the material to the die and reducing the cross-sectional area. Also, in case of hot drawing, if the mold shape is not suitable due to the increased fluidity of the material, it may cause problems such as tearing and stretching. Therefore, in this study, we try to find the shape of the mold which suppresses the occurrence of defects in the hot drawing process and maximizes the bonding pressure between the two materials through the mold shape optimization design by FEM analysis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=clad%20pipe" title="clad pipe">clad pipe</a>, <a href="https://publications.waset.org/abstracts/search?q=hot%20drawing" title=" hot drawing"> hot drawing</a>, <a href="https://publications.waset.org/abstracts/search?q=bonding%20pressure" title=" bonding pressure"> bonding pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=mold%20shape" title=" mold shape"> mold shape</a> </p> <a href="https://publications.waset.org/abstracts/77162/optimal-design-of-shape-for-increasing-the-bonding-pressure-drawing-of-hot-clad-pipes-by-finite-element-method-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77162.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">305</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> Analysis of the Gait Characteristics of Soldier between the Normal and Loaded Gait</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ji-il%20Park">Ji-il Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Min%20Kyu%20Yu"> Min Kyu Yu</a>, <a href="https://publications.waset.org/abstracts/search?q=Jong-woo%20Lee"> Jong-woo Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Sam-hyeon%20Yoo"> Sam-hyeon Yoo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this research is to analyze the gait strategy between the normal and loaded gait. To this end, five male participants satisfied two conditions: the normal and loaded gait (backpack load 25.2 kg). As expected, results showed that additional loads elicited not a proportional increase in vertical and shear ground reaction force (GRF) parameters but also increase of the impulse, momentum and mechanical work. However, in case of the loaded gait, the time duration of the double support phase was increased unexpectedly. It is because the double support phase which is more stable than the single support phase can reduce instability of the loaded gait. Also, the directions of the pre-collision and after-collision were moved upward and downward compared to the normal gait. As a result, regardless of the additional backpack load, the impulse-momentum diagram during the step-to-step transition was maintained such as the normal gait. It means that human walk efficiently to keep stability and minimize total net works in case of the loaded gait. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=normal%20gait" title="normal gait">normal gait</a>, <a href="https://publications.waset.org/abstracts/search?q=loaded%20gait" title=" loaded gait"> loaded gait</a>, <a href="https://publications.waset.org/abstracts/search?q=impulse" title=" impulse"> impulse</a>, <a href="https://publications.waset.org/abstracts/search?q=collision" title=" collision"> collision</a>, <a href="https://publications.waset.org/abstracts/search?q=gait%20analysis" title=" gait analysis"> gait analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20work" title=" mechanical work"> mechanical work</a>, <a href="https://publications.waset.org/abstracts/search?q=backpack%20load" title=" backpack load"> backpack load</a> </p> <a href="https://publications.waset.org/abstracts/49731/analysis-of-the-gait-characteristics-of-soldier-between-the-normal-and-loaded-gait" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49731.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">45</span> Separation of Chlorinated Plastics and Immobilization of Heavy Metals in Hazardous Automotive Shredder Residue</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Srinivasa%20Reddy%20Mallampati">Srinivasa Reddy Mallampati</a>, <a href="https://publications.waset.org/abstracts/search?q=Chi-Hyeon%20Lee"> Chi-Hyeon Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Nguyen%20Thi%20Thanh%20Truc"> Nguyen Thi Thanh Truc</a>, <a href="https://publications.waset.org/abstracts/search?q=Byeong-Kyu%20Lee"> Byeong-Kyu Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the present study, feasibility of the selective surface hydrophilization of polyvinyl chloride (PVC) by microwave treatment was evaluated to facilitate the separation from automotive shredder residue (ASR), by the froth flotation. The combination of 60 sec microwave treatment with PAC, a sharp and significant decrease about 16.5° contact angle of PVC was observed in ASR plastic compared with other plastics. The microwave treatment with the addition of PAC resulted in a synergetic effect for the froth flotation, which may be a result of the 90% selective separation of PVC from ASR plastics, with 82% purity. While, simple mixing with a nanometallic Ca/CaO/PO4 dispersion mixture immobilized 95-100% of heavy metals in ASR soil/residues. The quantity of heavy metals leached from thermal residues after treatment by nanometallic Ca/CaO/PO4 was lower than the Korean standard regulatory limit for hazardous waste landfills. Microwave treatment can be a simple and effective method for PVC separation from ASR plastics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=automotive%20shredder%20residue" title="automotive shredder residue">automotive shredder residue</a>, <a href="https://publications.waset.org/abstracts/search?q=chlorinated%20plastics" title=" chlorinated plastics"> chlorinated plastics</a>, <a href="https://publications.waset.org/abstracts/search?q=hazardous%20waste" title=" hazardous waste"> hazardous waste</a>, <a href="https://publications.waset.org/abstracts/search?q=heavy%20metals" title=" heavy metals"> heavy metals</a>, <a href="https://publications.waset.org/abstracts/search?q=immobilization" title=" immobilization"> immobilization</a>, <a href="https://publications.waset.org/abstracts/search?q=separation" title=" separation"> separation</a> </p> <a href="https://publications.waset.org/abstracts/32517/separation-of-chlorinated-plastics-and-immobilization-of-heavy-metals-in-hazardous-automotive-shredder-residue" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32517.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">521</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> A Study on Real-Time Fluorescence-Photoacoustic Imaging System for Mouse Thrombosis Monitoring</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sang%20Hun%20Park">Sang Hun Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Moung%20Young%20Lee"> Moung Young Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Su%20Min%20Yu"> Su Min Yu</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyun%20Sang%20Jo"> Hyun Sang Jo</a>, <a href="https://publications.waset.org/abstracts/search?q=Ji%20Hyeon%20Kim"> Ji Hyeon Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Chul%20Gyu%20Song"> Chul Gyu Song</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A near-infrared light source used as a light source in the fluorescence imaging system is suitable for use in real-time during the operation since it has no interference in surgical vision. However, fluorescence images do not have depth information. In this paper, we configured the device with the research on molecular imaging systems for monitoring thrombus imaging using fluorescence and photoacoustic. Fluorescence imaging was performed using a phantom experiment in order to search the exact location, and the Photoacoustic image was in order to detect the depth. Fluorescence image obtained when evaluated through current phantom experiments when the concentration of the contrast agent is 25μg / ml, it was confirmed that it looked sharper. The phantom experiment is has shown the possibility with the fluorescence image and photoacoustic image using an indocyanine green contrast agent. For early diagnosis of cardiovascular diseases, more active research with the fusion of different molecular imaging devices is required. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fluorescence" title="fluorescence">fluorescence</a>, <a href="https://publications.waset.org/abstracts/search?q=photoacoustic" title=" photoacoustic"> photoacoustic</a>, <a href="https://publications.waset.org/abstracts/search?q=indocyanine%20green" title=" indocyanine green"> indocyanine green</a>, <a href="https://publications.waset.org/abstracts/search?q=carotid%20artery" title=" carotid artery"> carotid artery</a> </p> <a href="https://publications.waset.org/abstracts/93152/a-study-on-real-time-fluorescence-photoacoustic-imaging-system-for-mouse-thrombosis-monitoring" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/93152.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">601</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> A Study of Curriculum for a Dual Bachelor’s Degree Including a Teaching Certificate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyeon%20Seok%20Kim">Hyeon Seok Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Inhoi%20Lee"> Inhoi Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Seong%20Baeg%20Kim"> Seong Baeg Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Kyunghee%20Ko"> Kyunghee Ko</a>, <a href="https://publications.waset.org/abstracts/search?q=Kyung%20Eon%20Lee"> Kyung Eon Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong%20Sik%20Kang"> Dong Sik Kang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the age of globalization, higher education institutions attempt to equip students with global competence. In response, most universities have been developing and running various international programs. However, teacher education has been a neglected area in this trend. Therefore, in this study, we suggest a program that offers a dual bachelor’s degree from both universities located on different countries, focusing on teacher education institutions with different policies and regulations of teacher education programs that may become obstacles to designing a dual degree program. We discuss a possible way to get a dual degree including a teaching certificate at a specialized college, college of secondary education. To be specific, this research presents a way to attain two diplomas from Jeju National University (JNU) in Korea and Boise State University (BSU) in the U.S. It attempts to build an effective plan for students to declare simultaneous degrees at both universities. From the study, we find that it takes about 5 years to fulfill requirements for the dual degree at the undergraduate level. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dual%20degree" title="dual degree">dual degree</a>, <a href="https://publications.waset.org/abstracts/search?q=curriculum" title=" curriculum"> curriculum</a>, <a href="https://publications.waset.org/abstracts/search?q=teaching%20certificate" title=" teaching certificate"> teaching certificate</a>, <a href="https://publications.waset.org/abstracts/search?q=college%20of%20secondary%20education" title=" college of secondary education"> college of secondary education</a>, <a href="https://publications.waset.org/abstracts/search?q=international%20program" title=" international program"> international program</a> </p> <a href="https://publications.waset.org/abstracts/2611/a-study-of-curriculum-for-a-dual-bachelors-degree-including-a-teaching-certificate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2611.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">42</span> Numerical Study for Compressive Strength of Basalt Composite Sandwich Infill Panel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Viriyavudh%20Sim">Viriyavudh Sim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jung%20Kyu%20Choi"> Jung Kyu Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Yong%20Ju%20Kwak"> Yong Ju Kwak</a>, <a href="https://publications.waset.org/abstracts/search?q=Oh%20Hyeon%20Jeon"> Oh Hyeon Jeon</a>, <a href="https://publications.waset.org/abstracts/search?q=Woo%20Young%20Jung"> Woo Young Jung</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, we investigated the buckling performance of basalt fiber reinforced polymer (BFRP) sandwich infill panels. Fiber Reinforced Polymer (FRP) is a major evolution for energy dissipation when used as infill material of frame structure, a basic Polymer Matrix Composite (PMC) infill wall system consists of two FRP laminates surrounding an infill of foam core. Furthermore, this type of component is for retrofitting and strengthening frame structure to withstand the seismic disaster. In-plane compression was considered in the numerical analysis with ABAQUS platform to determine the buckling failure load of BFRP infill panel system. The present result shows that the sandwich BFRP infill panel system has higher resistance to buckling failure than those of glass fiber reinforced polymer (GFRP) infill panel system, i.e. 16% increase in buckling resistance capacity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Basalt%20Fiber%20Reinforced%20Polymer%20%28BFRP%29" title="Basalt Fiber Reinforced Polymer (BFRP)">Basalt Fiber Reinforced Polymer (BFRP)</a>, <a href="https://publications.waset.org/abstracts/search?q=buckling%20performance" title=" buckling performance"> buckling performance</a>, <a href="https://publications.waset.org/abstracts/search?q=FEM%20analysis" title=" FEM analysis"> FEM analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=sandwich%20infill%20panel" title=" sandwich infill panel"> sandwich infill panel</a> </p> <a href="https://publications.waset.org/abstracts/80018/numerical-study-for-compressive-strength-of-basalt-composite-sandwich-infill-panel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80018.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">441</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> Influence of Sintering Temperatures in Er³⁺/Yb³⁺/Tm³⁺ Tri-Doped Y₂O₃ Nanophosphors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyeon%20Mi%20Noh">Hyeon Mi Noh</a>, <a href="https://publications.waset.org/abstracts/search?q=Ju%20Hyun%20Oh"> Ju Hyun Oh</a>, <a href="https://publications.waset.org/abstracts/search?q=Jung%20Hyun%20Jeong"> Jung Hyun Jeong</a>, <a href="https://publications.waset.org/abstracts/search?q=Haeyoung%20Choi"> Haeyoung Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Jung%20Hwan%20Kim"> Jung Hwan Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Er³⁺/Yb³⁺/Tm³⁺ tri-doped Y₂O₃ nanophosphors were synthesized by solvothermal method and its temperature dependence of the white upconversion emission has been studied by using 975 nm laser diode. The upconversion emission spectra in 1 mol% Er³⁺/5 mol% Yb³⁺/xTm³ tri-doped Y₂O₃ nanophosphors sintered at 1000 °C with x from 0 to 0.5 mol%. The blue emission intensity increase with Tm³⁺ concentration from 0 to 0.5 mol%, it is due to the 2F7/2→2F5/2 transition of Yb³⁺ around 10,000 cm-1 could easily reach the Tm³⁺ sates. The white light is composed with the blue (1G4→3H6 of Tm³⁺), green (2H11/2, 4S3/2→4I15/2 of Er³⁺), and red (4F9/2→4I15/2 of Er³⁺) upconversion radiations. The Y₂O₃: Er³⁺/Yb³⁺/Tm³⁺ nanophosphors show from white to green upconversion emission at power of 600 mW/cm² as sintering temperature increased. The calculated Commission Internationale de l’Eclairage (CIE) coordinates can be located in the white area with various sintering temperatures, in sintered at 1000 °C, and their color coordinates are very close to the standard white-light emission (0.33, 0.33). Their upconversion processes were explained by measuring the upconversion luminescence spectra and pump power dependence and energy level diagram. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=white%20upconversion%20emission" title="white upconversion emission">white upconversion emission</a>, <a href="https://publications.waset.org/abstracts/search?q=nanophosphors" title=" nanophosphors"> nanophosphors</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20transfer" title=" energy transfer"> energy transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=solvothermal%20method" title=" solvothermal method"> solvothermal method</a> </p> <a href="https://publications.waset.org/abstracts/75850/influence-of-sintering-temperatures-in-er3yb3tm3-tri-doped-y2o3-nanophosphors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/75850.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">40</span> The Prediction of Sound Absorbing Coefficient for Multi-Layer Non-Woven</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Un-Hwan%20Park">Un-Hwan Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Jun-Hyeok%20Heo"> Jun-Hyeok Heo</a>, <a href="https://publications.waset.org/abstracts/search?q=In-Sung%20Lee"> In-Sung Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Tae-Hyeon%20Oh"> Tae-Hyeon Oh</a>, <a href="https://publications.waset.org/abstracts/search?q=Dae-Gyu%20Park"> Dae-Gyu Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Automotive interior material consisting of several material layers has the sound-absorbing function. It is difficult to predict sound absorbing coefficient because of several material layers. So, many experimental tunings are required to achieve the target of sound absorption. Therefore, while the car interior materials are developed, so much time and money is spent. In this study, we present a method to predict the sound absorbing performance of the material with multi-layer using physical properties of each material. The properties are predicted by Foam-X software using the sound absorption coefficient data measured by impedance tube. Then, we will compare and analyze the predicted sound absorption coefficient with the data measured by scaled reverberation chamber and impedance tubes for a prototype. If the method is used instead of experimental tuning in the development of car interior material, the time and money can be saved, and then, the development effort can be reduced because it can be optimized by simulation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=multi-layer%20nonwoven" title="multi-layer nonwoven">multi-layer nonwoven</a>, <a href="https://publications.waset.org/abstracts/search?q=sound%20absorption%20coefficient" title=" sound absorption coefficient"> sound absorption coefficient</a>, <a href="https://publications.waset.org/abstracts/search?q=scaled%20reverberation%20chamber" title=" scaled reverberation chamber"> scaled reverberation chamber</a>, <a href="https://publications.waset.org/abstracts/search?q=impedance%20tubes" title=" impedance tubes"> impedance tubes</a> </p> <a href="https://publications.waset.org/abstracts/60069/the-prediction-of-sound-absorbing-coefficient-for-multi-layer-non-woven" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60069.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">376</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> Adjustable Aperture with Liquid Crystal for Real-Time Range Sensor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yumee%20Kim">Yumee Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Seung-Guk%20Hyeon"> Seung-Guk Hyeon</a>, <a href="https://publications.waset.org/abstracts/search?q=Kukjin%20Chun"> Kukjin Chun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An adjustable aperture using a liquid crystal is proposed for real-time range detection and obtaining images simultaneously. The adjustable aperture operates as two types of aperture stops which can create two different Depth of Field images. By analyzing these two images, the distance can be extracted from camera to object. Initially, the aperture stop has large size with zero voltage. When the input voltage is applied, the aperture stop transfer to smaller size by orientational transition of liquid crystal molecules in the device. The diameter of aperture stop is 1.94mm and 1.06mm. The proposed device has low driving voltage of 7.0V and fast response time of 6.22m. Compact size aperture of 6×6×1.1 mm3 is assembled in conventional camera which contain 1/3” HD image sensor and focal length of 3.3mm that can be used in autonomous. The measured range was up to 5m. The adjustable aperture has high stability due to no mechanically moving parts. This range sensor can be applied to the various field of 3D depth map application which is the Advanced Driving Assistance System (ADAS), drones and manufacturing machine. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adjustable%20aperture" title="adjustable aperture">adjustable aperture</a>, <a href="https://publications.waset.org/abstracts/search?q=dual%20aperture" title=" dual aperture"> dual aperture</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid%20crystal" title=" liquid crystal"> liquid crystal</a>, <a href="https://publications.waset.org/abstracts/search?q=ranging%20and%20imaging" title=" ranging and imaging"> ranging and imaging</a>, <a href="https://publications.waset.org/abstracts/search?q=ADAS" title=" ADAS"> ADAS</a>, <a href="https://publications.waset.org/abstracts/search?q=range%20sensor" title=" range sensor"> range sensor</a> </p> <a href="https://publications.waset.org/abstracts/68963/adjustable-aperture-with-liquid-crystal-for-real-time-range-sensor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68963.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">381</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">38</span> Compositional Analysis and Antioxidant Activities of the Chocolate Fermented by Lactobacillus plantarum CK10</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hye%20Rim%20Kang">Hye Rim Kang</a>, <a href="https://publications.waset.org/abstracts/search?q=So%20Yae%20Koh"> So Yae Koh</a>, <a href="https://publications.waset.org/abstracts/search?q=Ji-Yeon%20Ryu"> Ji-Yeon Ryu</a>, <a href="https://publications.waset.org/abstracts/search?q=Chang%20Kyu%20Lee"> Chang Kyu Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Ji%20Hee%20Lim"> Ji Hee Lim</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyeon%20A.%20Kim"> Hyeon A. Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Geun%20Hyung%20Im"> Geun Hyung Im</a>, <a href="https://publications.waset.org/abstracts/search?q=Somi%20Kim%20Cho"> Somi Kim Cho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, antioxidant properties and compositional analysis of fermented chocolate were examined. Chocolate was fermented with Lactobacillus plantarum CK10. As fermentation time went by, pH was decreased (5.26±0.02 to 3.98±0.06) while titratable acidity was increased (5.36±0.19 to 13.31±0.34). The total polyphenol contents were maintained through the fermentation. The contents of total polyphenol were slightly increased at 8 hr (6.34±0.12 mg GAE (Gallic acid equivalent)/g), and it reached to comparable levels of the control at 24 hr (control, 5.47±0.36 mg GAE/g); 24 hr, 5.19±0.23 mg GAE/g). Similarly, the total flavonoid contents were not significantly changed during fermentation. The pronounced radical scavenging activities of chocolate, against DPPH-, ABTS-, and Alkyl radical, were observed. The levels of antioxidant activities were not dramatically altered in the course of fermentation. By gas chromatography-mass spectrometry analysis, the increase in lactic acid was measured and four major compounds, HMF, xanthosine, caffeine, and theobromine, were identified. The relative peak area of caffeine and theobromine was considerably changed during fermentation. However, no significant difference in the levels of caffeine and theobromine were observed by high-performance liquid chromatography analysis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antioxidant" title="antioxidant">antioxidant</a>, <a href="https://publications.waset.org/abstracts/search?q=chocolate" title=" chocolate"> chocolate</a>, <a href="https://publications.waset.org/abstracts/search?q=compositional%20analysis" title=" compositional analysis"> compositional analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=fermentation" title=" fermentation"> fermentation</a>, <a href="https://publications.waset.org/abstracts/search?q=Lactobaillus%20plantarum" title=" Lactobaillus plantarum"> Lactobaillus plantarum</a> </p> <a href="https://publications.waset.org/abstracts/55853/compositional-analysis-and-antioxidant-activities-of-the-chocolate-fermented-by-lactobacillus-plantarum-ck10" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55853.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">287</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=Jin%20Yi%20Hyeon&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Jin%20Yi%20Hyeon&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Jin%20Yi%20Hyeon&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div 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