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Crews</title> <meta name="description" content="Search results for: Keith Crews"> <meta name="keywords" content="Keith Crews"> <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="Keith Crews" 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="Keith Crews"> <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> 52</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Keith Crews</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">52</span> Experimental Investigation on the Effect of Bond Thickness on the Interface Behaviour of Fibre Reinforced Polymer Sheet Bonded to Timber</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abbas%20Vahedian">Abbas Vahedian</a>, <a href="https://publications.waset.org/abstracts/search?q=Rijun%20Shrestha"> Rijun Shrestha</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20Crews"> Keith Crews</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The bond mechanism between timber and fibre reinforced polymer (FRP) is relatively complex and is influenced by a number of variables including bond thickness, bond width, bond length, material properties, and geometries. This study investigates the influence of bond thickness on the behaviour of interface, failure mode, and bond strength of externally bonded FRP-to-timber interface. In the present study, 106 single shear joint specimens have been investigated. Experiment results showed that higher layers of FRP increase the ultimate load carrying capacity of interface; conversely, such increase led to decrease the slip of interface. Moreover, samples with more layers of FRPs may fail in a brittle manner without noticeable warning that collapse is imminent. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fibre%20reinforced%20polymer" title="fibre reinforced polymer">fibre reinforced polymer</a>, <a href="https://publications.waset.org/abstracts/search?q=FRP" title=" FRP"> FRP</a>, <a href="https://publications.waset.org/abstracts/search?q=single%20shear%20test" title=" single shear test"> single shear test</a>, <a href="https://publications.waset.org/abstracts/search?q=bond%20thickness" title=" bond thickness"> bond thickness</a>, <a href="https://publications.waset.org/abstracts/search?q=bond%20strength" title=" bond strength"> bond strength</a> </p> <a href="https://publications.waset.org/abstracts/100515/experimental-investigation-on-the-effect-of-bond-thickness-on-the-interface-behaviour-of-fibre-reinforced-polymer-sheet-bonded-to-timber" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/100515.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">229</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> Modelling of Factors Affecting Bond Strength of Fibre Reinforced Polymer Externally Bonded to Timber and Concrete</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abbas%20Vahedian">Abbas Vahedian</a>, <a href="https://publications.waset.org/abstracts/search?q=Rijun%20Shrestha"> Rijun Shrestha</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20Crews"> Keith Crews</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In recent years, fibre reinforced polymers as applications of strengthening materials have received significant attention by civil engineers and environmentalists because of their excellent characteristics. Currently, these composites have become a mainstream technology for strengthening of infrastructures such as steel, concrete and more recently, timber and masonry structures. However, debonding is identified as the main problem which limit the full utilisation of the FRP material. In this paper, a preliminary analysis of factors affecting bond strength of FRP-to-concrete and timber bonded interface has been conducted. A novel theoretical method through regression analysis has been established to evaluate these factors. Results of proposed model are then assessed with results of pull-out tests and satisfactory comparisons are achieved between measured failure loads (R<sup>2 </sup>= 0.83, P < 0.0001) and the predicted loads (R<sup>2 </sup>= 0.78, P < 0.0001). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=debonding" title="debonding">debonding</a>, <a href="https://publications.waset.org/abstracts/search?q=fibre%20reinforced%20polymers%20%28FRP%29" title=" fibre reinforced polymers (FRP)"> fibre reinforced polymers (FRP)</a>, <a href="https://publications.waset.org/abstracts/search?q=pull-out%20test" title=" pull-out test"> pull-out test</a>, <a href="https://publications.waset.org/abstracts/search?q=stepwise%20regression%20analysis" title=" stepwise regression analysis"> stepwise regression analysis</a> </p> <a href="https://publications.waset.org/abstracts/78084/modelling-of-factors-affecting-bond-strength-of-fibre-reinforced-polymer-externally-bonded-to-timber-and-concrete" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78084.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">248</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> Optimizing SCADA/RTU Control System Alarms for Gas Wells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Ali%20Faqeeh">Mohammed Ali Faqeeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> SCADA System Alarms Optimization Process has been introduced recently and applied accordingly in different implemented stages. First, MODBUS communication protocols between RTU/SCADA were improved at the level of I/O points scanning intervals. Then, some of the technical issues related to manufacturing limitations were resolved. Afterward, another approach was followed to take a decision on the configured alarms database. So, a couple of meetings and workshops were held among all system stakeholders, which resulted in an agreement of disabling unnecessary (Diagnostic) alarms. Moreover, a leap forward step was taken to segregate the SCADA Operator Graphics in a way to show only process-related alarms while some other graphics will ensure the availability of field alarms related to maintenance and engineering purposes. This overall system management and optimization have resulted in a huge effective impact on all operations, maintenance, and engineering. It has reduced unneeded open tickets for maintenance crews which led to reduce the driven mileages accordingly. Also, this practice has shown a good impression on the operation reactions and response to the emergency situations as the SCADA operators can be staying much vigilant on the real alarms rather than gets distracted by noisy ones. SCADA System Alarms Optimization process has been executed utilizing all applicable in-house resources among engineering, maintenance, and operations crews. The methodology of the entire enhanced scopes is performed through various stages. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=SCADA" title="SCADA">SCADA</a>, <a href="https://publications.waset.org/abstracts/search?q=RTU%20Communication" title=" RTU Communication"> RTU Communication</a>, <a href="https://publications.waset.org/abstracts/search?q=alarm%20management%20system" title=" alarm management system"> alarm management system</a>, <a href="https://publications.waset.org/abstracts/search?q=SCADA%20alarms" title=" SCADA alarms"> SCADA alarms</a>, <a href="https://publications.waset.org/abstracts/search?q=Modbus" title=" Modbus"> Modbus</a>, <a href="https://publications.waset.org/abstracts/search?q=DNP%20protocol" title=" DNP protocol"> DNP protocol</a> </p> <a href="https://publications.waset.org/abstracts/142519/optimizing-scadartu-control-system-alarms-for-gas-wells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/142519.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">166</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> Prospective Study on the Efficacy of Bio Absorbable Screws in Treatment of Osteochondral Fractures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Anwar%20Sathik">S. Anwar Sathik</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Manoj%20Deepak"> K. Manoj Deepak</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Venkatachalam"> K. Venkatachalam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Our study is a prospective study on the use of bio absorbable pins for the treatment of osteochondral fractures after patellar dislocation.22 patients who presented with osteochondral fractures were treated in our institution. They were followed for a minimum of 12 months by regular radiological evaluation. Of the 22 patients, 2 had fragments that detached from the fracture site which was treated arthroscopically. All the patients underwent open reduction and fixation of the pins using bio absorbable crews. They were immobilized in the cast for a minimum of 6 weeks after which mobilization was started according to our protocol. Fracture consolidation was found to occur in 20 of the 22 patients. Thus, Bio absorbable screws can be used as a reliable method of fixation of the osteochondral fragments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=osteochondral%20fracture" title="osteochondral fracture">osteochondral fracture</a>, <a href="https://publications.waset.org/abstracts/search?q=bio%20absorbable%20pins" title=" bio absorbable pins"> bio absorbable pins</a>, <a href="https://publications.waset.org/abstracts/search?q=patella%20dislocation" title=" patella dislocation"> patella dislocation</a>, <a href="https://publications.waset.org/abstracts/search?q=physiotherapy" title=" physiotherapy "> physiotherapy </a> </p> <a href="https://publications.waset.org/abstracts/16495/prospective-study-on-the-efficacy-of-bio-absorbable-screws-in-treatment-of-osteochondral-fractures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16495.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">48</span> A Mixed Integer Linear Programming Model for Container Collection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20Van%20Engeland">J. Van Engeland</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Lavigne"> C. Lavigne</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20De%20Jaeger"> S. De Jaeger</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the light of the transition towards a more circular economy, recovery of products, parts or materials will gain in importance. Additionally, the EU proximity principle related to waste management and emissions generated by transporting large amounts of end-of-life products, shift attention to local recovery networks. The Flemish inter-communal cooperation for municipal solid waste management Meetjesland (IVM) is currently investigating the set-up of such a network. More specifically, the network encompasses the recycling of polyvinyl chloride (PVC), which is collected in separate containers. When these containers are full, a truck should transport them to the processor which can recycle the PVC into new products. This paper proposes a model to optimize the container collection. The containers are located at different Civic Amenity sites (CA sites) in a certain region. Since people can drop off their waste at these CA sites, the containers will gradually fill up during a planning horizon. If a certain container is full, it has to be collected and replaced by an empty container. The collected waste is then transported to a single processor. To perform this collection and transportation of containers, the responsible firm has a set of vehicles stationed at a single depot and different personnel crews. A vehicle can load exactly one container. If a trailer is attached to the vehicle, it can load an additional container. Each day of the planning horizon, the different crews and vehicles leave the depot to collect containers at the different sites. After loading one or two containers, the crew has to drive to the processor for unloading the waste and to pick up empty containers. Afterwards, the crew can again visit sites or it can return to the depot to end its collection work for that day. All along the collection process, the crew has to respect the opening hours of the sites. In order to allow for some flexibility, a crew is allowed to wait a certain amount of time at the gate of a site until it opens. The problem described can be modelled as a variant to the PVRP-TW (Periodic Vehicle Routing Problem with Time Windows). However, a vehicle can at maximum load two containers, hence only two subsequent site visits are possible. For that reason, we will refer to the model as a model for building tactical waste collection schemes. The goal is to a find a schedule describing which crew should visit which CA site on which day to minimize the number of trucks and the routing costs. The model was coded in IBM CPLEX Optimization studio and applied to a number of test instances. Good results were obtained, and specific suggestions concerning route and truck costs could be made. For a large range of input parameters, collection schemes using two trucks are obtained. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=container%20collection" title="container collection">container collection</a>, <a href="https://publications.waset.org/abstracts/search?q=crew%20scheduling" title=" crew scheduling"> crew scheduling</a>, <a href="https://publications.waset.org/abstracts/search?q=mixed%20integer%20linear%20programming" title=" mixed integer linear programming"> mixed integer linear programming</a>, <a href="https://publications.waset.org/abstracts/search?q=waste%20management" title=" waste management"> waste management</a> </p> <a href="https://publications.waset.org/abstracts/97057/a-mixed-integer-linear-programming-model-for-container-collection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/97057.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">134</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> Towards Automated Remanufacturing of Marine and Offshore Engineering Components </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aprilia">Aprilia</a>, <a href="https://publications.waset.org/abstracts/search?q=Wei%20Liang%20Keith%20Nguyen"> Wei Liang Keith Nguyen</a>, <a href="https://publications.waset.org/abstracts/search?q=Shu%20Beng%20Tor"> Shu Beng Tor</a>, <a href="https://publications.waset.org/abstracts/search?q=Gerald%20Gim%20Lee%20Seet"> Gerald Gim Lee Seet</a>, <a href="https://publications.waset.org/abstracts/search?q=Chee%20Kai%20Chua"> Chee Kai Chua</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Automated remanufacturing process is of great interest in today’s marine and offshore industry. Most of the current remanufacturing processes are carried out manually and hence they are error prone, labour-intensive and costly. In this paper, a conceptual framework for automated remanufacturing is presented. This framework involves the integration of 3D non-contact digitization, adaptive surface reconstruction, additive manufacturing and machining operation. Each operation is operated and interconnected automatically as one system. The feasibility of adaptive surface reconstruction on marine and offshore engineering components is also discussed. Several engineering components were evaluated and the results showed that this proposed system is feasible. Conclusions are drawn and further research work is discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adaptive%20surface%20reconstruction" title="adaptive surface reconstruction">adaptive surface reconstruction</a>, <a href="https://publications.waset.org/abstracts/search?q=automated%20remanufacturing" title=" automated remanufacturing"> automated remanufacturing</a>, <a href="https://publications.waset.org/abstracts/search?q=automatic%20repair" title=" automatic repair"> automatic repair</a>, <a href="https://publications.waset.org/abstracts/search?q=reverse%20engineering" title=" reverse engineering"> reverse engineering</a> </p> <a href="https://publications.waset.org/abstracts/57009/towards-automated-remanufacturing-of-marine-and-offshore-engineering-components" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57009.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">326</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> Lightweight High-Pressure Ratio Centrifugal Compressor for Vehicles-Investigation of Pipe Diffuser Designs by Means of CFD</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eleni%20Ioannou">Eleni Ioannou</a>, <a href="https://publications.waset.org/abstracts/search?q=Pascal%20Nucara"> Pascal Nucara</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20Pullen"> Keith Pullen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The subject of this paper is the investigation of the best efficiency design of a compressor diffuser applied in new lightweight, ultra efficient micro-gas turbine engines for vehicles. The Computational Fluid Dynamics (CFD) results are obtained utilizing steady state simulations for a wedge and an ”oval” type pipe diffuser in an effort to identify the beneficial effects of the pipe diffuser design. The basic flow features are presented with particular focus on the optimization of the pipe diffuser leading to higher efficiencies for the compressor stage. The optimised pipe diffuser is designed to exploit the 3D freedom enabled by Selective Laser Melting, hence purposely involves an investigation of geometric characteristics that do not follow the traditional diffuser concept. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CFD" title="CFD">CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=centrifugal%20compressor" title=" centrifugal compressor"> centrifugal compressor</a>, <a href="https://publications.waset.org/abstracts/search?q=micro-gas%20turbine" title=" micro-gas turbine"> micro-gas turbine</a>, <a href="https://publications.waset.org/abstracts/search?q=pipe%20diffuser" title=" pipe diffuser"> pipe diffuser</a>, <a href="https://publications.waset.org/abstracts/search?q=SLM" title=" SLM"> SLM</a>, <a href="https://publications.waset.org/abstracts/search?q=wedge%20diffuser" title=" wedge diffuser"> wedge diffuser</a> </p> <a href="https://publications.waset.org/abstracts/39107/lightweight-high-pressure-ratio-centrifugal-compressor-for-vehicles-investigation-of-pipe-diffuser-designs-by-means-of-cfd" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/39107.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">406</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">45</span> A Grounded Theory of Educational Leadership Development Using Generative Dialogue</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elizabeth%20Hartney">Elizabeth Hartney</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20Borkowsky"> Keith Borkowsky</a>, <a href="https://publications.waset.org/abstracts/search?q=Jo%20Axe"> Jo Axe</a>, <a href="https://publications.waset.org/abstracts/search?q=Doug%20Hamilton"> Doug Hamilton</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this research is to develop a grounded theory of educational leadership development, using an approach to initiating and maintaining professional growth in school principals and vice principals termed generative dialogue. The research was conducted in a relatively affluent, urban school district in Western Canada. Generative dialogue interviews were conducted by a team of consultants, and anonymous data in the form of handwritten notes were voluntarily submitted to the research team. The data were transcribed and analyzed using grounded theory. The results indicate that a key focus of educational leadership development is focused on navigating relationships within the school setting and that the generative dialogue process is helpful for principals and vice principals to explore how they might do this. Applicability and limitations of the study are addressed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=generative%20dialogue" title="generative dialogue">generative dialogue</a>, <a href="https://publications.waset.org/abstracts/search?q=school%20principals" title=" school principals"> school principals</a>, <a href="https://publications.waset.org/abstracts/search?q=grounded%20theory" title=" grounded theory"> grounded theory</a>, <a href="https://publications.waset.org/abstracts/search?q=leadership%20development" title=" leadership development"> leadership development</a> </p> <a href="https://publications.waset.org/abstracts/92456/a-grounded-theory-of-educational-leadership-development-using-generative-dialogue" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/92456.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">356</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> Modeling of Building a Conceptual Scheme for Multimodal Freight Transportation Information System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gia%20Surguladze">Gia Surguladze</a>, <a href="https://publications.waset.org/abstracts/search?q=Nino%20Topuria"> Nino Topuria</a>, <a href="https://publications.waset.org/abstracts/search?q=Lily%20Petriashvili"> Lily Petriashvili</a>, <a href="https://publications.waset.org/abstracts/search?q=Giorgi%20Surguladze"> Giorgi Surguladze</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Modeling of building processes of a multimodal freight transportation support information system is discussed based on modern CASE technologies. Functional efficiencies of ports in the eastern part of the Black Sea are analyzed taking into account their ecological, seasonal, resource usage parameters. By resources, we mean capacities of berths, cranes, automotive transport, as well as work crews and neighbouring airports. For the purpose of designing database of computer support system for Managerial (Logistics) function, using Object-Role Modeling (ORM) tool (NORMA – Natural ORM Architecture) is proposed, after which Entity Relationship Model (ERM) is generated in automated process. The software is developed based on Process-Oriented and Service-Oriented architecture, in Visual Studio.NET environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=seaport%20resources" title="seaport resources">seaport resources</a>, <a href="https://publications.waset.org/abstracts/search?q=business-processes" title=" business-processes"> business-processes</a>, <a href="https://publications.waset.org/abstracts/search?q=multimodal%20transportation" title=" multimodal transportation"> multimodal transportation</a>, <a href="https://publications.waset.org/abstracts/search?q=CASE%20technology" title=" CASE technology"> CASE technology</a>, <a href="https://publications.waset.org/abstracts/search?q=object-role%20model" title=" object-role model"> object-role model</a>, <a href="https://publications.waset.org/abstracts/search?q=entity%20relationship%20model" title=" entity relationship model"> entity relationship model</a>, <a href="https://publications.waset.org/abstracts/search?q=SOA" title=" SOA"> SOA</a> </p> <a href="https://publications.waset.org/abstracts/32046/modeling-of-building-a-conceptual-scheme-for-multimodal-freight-transportation-information-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32046.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">430</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 Qualitative Investigation into Street Art in an Indonesian City</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Michelle%20Mansfield">Michelle Mansfield</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: This paper uses the work of Deleuze and Guattari to consider the street art practice of youth in the Indonesian city of Yogyakarta, a hub of arts and culture in Central Java. Around the world young people have taken to city streets to populate the new informal exhibition spaces outside the galleries of official art institutions. However, rarely is the focus outside the urban metropolis of the ‘Global North.' This paper looks at these practices in a ‘Global South’ Asian context. Space and place are concepts central to understanding youth cultural expression as it emerges on the streets. Deleuze and Guattari’s notion of assemblage enriches understanding of this complex spatial and creative relationship. Yogyakarta street art combines global patterns and motifs with local meanings, symbolism, and language to express local youth voices that convey a unique sense of place on the world stage. Street art has developed as a global urban youth art movement and is theorised as a way in which marginalised young people reclaim urban space for themselves. Methodologies: This study utilised a variety of qualitative methodologies to collect and analyse data. This project took a multi-method approach to data collection, incorporating the qualitative social research methods of ethnography, nongkrong (deep hanging out), participatory action research, online research, in-depth interviews and focus group discussions. Both interviews and focus groups employed photo-elicitation methodology to stimulate rich data gathering. To analyse collected data, rhizoanalytic approaches incorporating discourse analysis and visual analysis were utilised. Street art practice is a fluid and shifting phenomenon, adding to the complexity of inquiry sites. A qualitative approach to data collection and analysis was the most appropriate way to map the components of the street art assemblage and to draw out complexities of this youth cultural practice in Yogyakarta. Major Findings: The rhizoanalytic approach devised for this study proved a useful way of examining in the street art assemblage. It illustrated the ways in which the street art assemblage is constructed. Especially the interaction of inspiration, materials, creative techniques, audiences, and spaces operate in the creations of artworks. The study also exposed the generational tensions between the senior arts practitioners, the established art world, and the young artists. Conclusion: In summary, within the spatial processes of the city, street art is inextricably linked with its audience, its striving artistic community and everyday life in the smooth rather than the striated worlds of the state and the official art world. In this way, the anarchic rhizomatic art practice of nomadic urban street crews can be described not only as ‘becoming-artist’ but as constituting ‘nomos’, a way of arranging elements which are not dependent on a structured, hierarchical organisation practice. The site, streets, crews, neighbourhood and the passers by can all be examined with the concept of assemblage. The assemblage effectively brings into focus the complexity, dynamism, and flows of desire that is a feature of street art practice by young people in Yogyakarta. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=assemblage" title="assemblage">assemblage</a>, <a href="https://publications.waset.org/abstracts/search?q=Indonesia" title=" Indonesia"> Indonesia</a>, <a href="https://publications.waset.org/abstracts/search?q=street%20art" title=" street art"> street art</a>, <a href="https://publications.waset.org/abstracts/search?q=youth" title=" youth"> youth</a> </p> <a href="https://publications.waset.org/abstracts/76603/a-qualitative-investigation-into-street-art-in-an-indonesian-city" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/76603.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">182</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> Normally Closed Thermoplastic Microfluidic Valves with Microstructured Valve Seats: A Strategy to Avoid Permanently Bonded Valves during Channel Sealing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kebin%20Li">Kebin Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20Morton"> Keith Morton</a>, <a href="https://publications.waset.org/abstracts/search?q=Matthew%20Shiu"> Matthew Shiu</a>, <a href="https://publications.waset.org/abstracts/search?q=Karine%20Turcotte"> Karine Turcotte</a>, <a href="https://publications.waset.org/abstracts/search?q=Luke%20Lukic"> Luke Lukic</a>, <a href="https://publications.waset.org/abstracts/search?q=Teodor%20Veres"> Teodor Veres</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We present a normally closed thermoplastic microfluidic valve design that uses microstructured valve seats to locally prevent the membrane from bonding to the valve seat during microfluidic channel sealing. The microstructured valve seat reduces the adhesion force between the contact surfaces of the valve seat and the membrane locally, allowing valve open and close operations while simultaneously providing a permanent and robust bond elsewhere to cover and seal the microfluidic channel network. Dynamic valve operation including opening and closing times can be tuned by changing the valve seat diameter as well as the density of the microstructures on the valve seats. The influence of the microstructured valve seat on the general flow behavior through the microfluidic devices was also studied. A design window for the fabrication of valve structure is identified and discussed to minimize the fabrication complexity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hot-embossing" title="hot-embossing">hot-embossing</a>, <a href="https://publications.waset.org/abstracts/search?q=injection%20molding" title=" injection molding"> injection molding</a>, <a href="https://publications.waset.org/abstracts/search?q=microfabrication" title=" microfabrication"> microfabrication</a>, <a href="https://publications.waset.org/abstracts/search?q=microfluidics" title=" microfluidics"> microfluidics</a>, <a href="https://publications.waset.org/abstracts/search?q=microvalves" title=" microvalves"> microvalves</a>, <a href="https://publications.waset.org/abstracts/search?q=thermoplastic%20elastomer" title=" thermoplastic elastomer"> thermoplastic elastomer</a> </p> <a href="https://publications.waset.org/abstracts/104819/normally-closed-thermoplastic-microfluidic-valves-with-microstructured-valve-seats-a-strategy-to-avoid-permanently-bonded-valves-during-channel-sealing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104819.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">294</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> The Effect of Damping Treatment for Noise Control on Offshore Platforms Using Statistical Energy Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ji%20Xi">Ji Xi</a>, <a href="https://publications.waset.org/abstracts/search?q=Cheng%20Song%20Chin"> Cheng Song Chin</a>, <a href="https://publications.waset.org/abstracts/search?q=Ehsan%20Mesbahi"> Ehsan Mesbahi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Structure-borne noise is an important aspect of offshore platform sound field. It can be generated either directly by vibrating machineries induced mechanical force, indirectly by the excitation of structure or excitation by incident airborne noise. Therefore, limiting of the transmission of vibration energy throughout the offshore platform is the key to control the structure-borne noise. This is usually done by introducing damping treatment to the steel structures. Two types of damping treatment using on-board are presented. By conducting a statistical energy analysis (SEA) simulation on a jack-up rig, the noise level in the source room, the neighboring rooms, and remote living quarter cabins are compared before and after the damping treatments been applied. The results demonstrated that, in the source neighboring room and living quarter area, there is a significant noise reduction with the damping treatment applied, whereas in the source room where air-borne sound predominates that of structure-borne sound, the impact is not obvious. The subsequent optimization design of damping treatment in the offshore platform can be made which enable acoustic professionals to implement noise control during the design stage for offshore crews’ hearing protection and habitant comfortability. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=statistical%20energy%20analysis" title="statistical energy analysis">statistical energy analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=damping%20treatment" title=" damping treatment"> damping treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=noise%20control" title=" noise control"> noise control</a>, <a href="https://publications.waset.org/abstracts/search?q=offshore%20platform" title=" offshore platform"> offshore platform</a> </p> <a href="https://publications.waset.org/abstracts/33178/the-effect-of-damping-treatment-for-noise-control-on-offshore-platforms-using-statistical-energy-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33178.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">554</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 Money Supply Effect on Hong Kong’s Post-1997 Asian Financial Crisis Property Market</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Keith%20Dominic%20T.%20Li">Keith Dominic T. Li</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The soaring prices of residential properties in Hong Kong has become a social problem that even the middle class is having dif?iculties in purchasing homes. In making policies to curb the prices, it is important to determine the factors that contribute to the property in?lation. Many researches attribute this in?lation to macroeconomic factors especially the interest rate. However, it is important to remember that Hong Kong is under a Currency Board system which makes its interest rate exogenously determined. This research aims to show the signi?icance of the money supply on Hong Kong residential property prices in post-1997 Asian Financial Crisis period. Using money supply data, macroeconomic fundamentals, and demographic variables from 2000Q1 to 2013Q2, the factors contributed to residential property price in?lation are estimated to calculate the share of each explanatory variable in disparity. It is found that the Hong Kong property market is mainly driven by investment and that the in?lation on Hong Kong residential property prices can explained by the increase in the Hang Seng Index and in the money supply M2. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=real%20estate" title="real estate">real estate</a>, <a href="https://publications.waset.org/abstracts/search?q=Hong%20Kong" title=" Hong Kong"> Hong Kong</a>, <a href="https://publications.waset.org/abstracts/search?q=property%20market" title=" property market"> property market</a>, <a href="https://publications.waset.org/abstracts/search?q=monetary%20economics" title=" monetary economics"> monetary economics</a>, <a href="https://publications.waset.org/abstracts/search?q=monetary%20policy" title=" monetary policy"> monetary policy</a> </p> <a href="https://publications.waset.org/abstracts/20432/the-money-supply-effect-on-hong-kongs-post-1997-asian-financial-crisis-property-market" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20432.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">533</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> Examining E-Government Impact Using Public Value Approach: A Case Study in Pakistan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shahid%20Nishat">Shahid Nishat</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20Thomas"> Keith Thomas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> E-government initiatives attract substantial public investments around the world. These investments are based on the premise of digital transformation of the public services, improved efficiency and transparency, and citizen participation in the social democratic processes. However, many e-Government projects, especially in developing countries, fail to achieve their intended outcomes, and a strong disparity exists between the investments made and outcomes achieved, often referred to as e-Government paradox. Further, there is lack of research on evaluating the impacts of e-Government in terms of public value it creates, which ultimately drives usage. This study aims to address these gaps by identifying key enablers of e-Government success and by proposing a public value based framework to examine impact of e-Government services. The study will extend Delone and McLean Information System (IS) Success model by integrating Technology Readiness (TR) characteristics to develop an integrated success model. Level of analysis will be mobile government applications, and the framework will be empirically tested using quantitative methods. The research will add to the literature on e-Government success and will be beneficial for governments, especially in developing countries aspiring to improve public services through the use of Information Communication Technologies (ICT). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=e-Government" title="e-Government">e-Government</a>, <a href="https://publications.waset.org/abstracts/search?q=IS%20success%20model" title=" IS success model"> IS success model</a>, <a href="https://publications.waset.org/abstracts/search?q=public%20value" title=" public value"> public value</a>, <a href="https://publications.waset.org/abstracts/search?q=technology%20adoption" title=" technology adoption"> technology adoption</a>, <a href="https://publications.waset.org/abstracts/search?q=technology%20readiness" title=" technology readiness"> technology readiness</a> </p> <a href="https://publications.waset.org/abstracts/130641/examining-e-government-impact-using-public-value-approach-a-case-study-in-pakistan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/130641.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">131</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">38</span> Interventions to Control Listeria Monocytogenes on Sliced Mushrooms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alanna%20Goodman">Alanna Goodman</a>, <a href="https://publications.waset.org/abstracts/search?q=Kayla%20Murray"> Kayla Murray</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20Warriner"> Keith Warriner</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The following reports on a comparative study on the efficacy of different decontamination technologies to decrease Listeria monocytogenes inoculated onto white sliced mushrooms and assesses the fate of residual levels during posttreatment storage under aerobic conditions at 8uC. The treatments were chemical (hydrogen peroxide, peroxyacetic acid, ozonated water, electrolyzed water, chitosan, lactic acid), biological (Listeria bacteriophages), and physical (UV-C, UV:hydrogen peroxide). None of the treatments achieved .1.2 log CFU reduction in L. monocytogenes levels; bacteriophages at a multiplicity of infection of 100 and 3% (vol/vol) hydrogen peroxide were the most effective of the treatments tested. However, growth of residual L. monocytogenes during posttreatment storage attained levels equal to or greater than levels in the nontreated controls. The growth of L. monocytogenes was inhibited on mushrooms treated with chitosan, electrolyzed water, peroxyacetic acid, or UV. Yet, L. monocytogenes inoculated onto mushrooms and treated with UV:hydrogen peroxide decreased during posttreatment storage, through a combination of sublethal injury and dehydration of the mushroom surface. Although mushrooms treated with UV:hydrogen peroxide became darker during storage, the samples were visually acceptable relative to controls. In conclusion, of the treatments evaluated, UV:hydrogen peroxide holds promise to control L. monocytogenes on mushroom surfaces. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=listeria%20monocytogenes" title="listeria monocytogenes">listeria monocytogenes</a>, <a href="https://publications.waset.org/abstracts/search?q=sliced%20mushrooms" title=" sliced mushrooms"> sliced mushrooms</a>, <a href="https://publications.waset.org/abstracts/search?q=bacteriophages" title=" bacteriophages"> bacteriophages</a>, <a href="https://publications.waset.org/abstracts/search?q=UV" title=" UV"> UV</a>, <a href="https://publications.waset.org/abstracts/search?q=sanitizers" title=" sanitizers"> sanitizers</a> </p> <a href="https://publications.waset.org/abstracts/29760/interventions-to-control-listeria-monocytogenes-on-sliced-mushrooms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29760.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">476</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">37</span> Application and Regeneration of CuMnCeO Catalyst Supporting K₂CO₃ Sorbent Adapted to CO Oxidation and CO₂ Absorption</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jin%20Lin">Jin Lin</a>, <a href="https://publications.waset.org/abstracts/search?q=Shouxiang%20Lu"> Shouxiang Lu</a>, <a href="https://publications.waset.org/abstracts/search?q=Kim%20Meow%20Liew"> Kim Meow Liew</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The requirement for the long-term mission of the submarine and spacecraft has made the removal of CO₂ and trace CO the critical technology to ensure the health and life of the crews. In this work, CuMnCe, a metal oxide catalyst, supporting K₂CO₃ sorbent was prepared by the wet-solid state impregnation method to realize the integrated CO and CO₂ removal, which might also reduce the volume/mass load of the purification units in the limited space. The as-prepared samples with different addition amount of K₂CO₃ were tested using the fixed bed reactor to reveal the CO oxidation and CO₂ absorption behavior. And the regeneration and stability experiments were also conducted. The results showed that the samples realized the catalyst and sorbent integration to capture CO and CO₂ at the same time. The addition amount of the sorbent had a weak influence on the CO oxidation performance. While the addition amount affected the CO₂ sorption efficiency and capacity significantly. Meanwhile, the presence of water vapor could reduce the CO oxidation activity of the samples similarly, whether with K2CO3 sorbent addition or not. Furtherly, regeneration and stability experiment results showed that the samples after 3-5 times regeneration exhibited almost the same performance of CO and CO₂ removal. Summarily, CuMnCe catalyst supporting K₂CO₃ sorbent could be a good attempt to control CO and CO₂ pollutants generated from the daily equipment running and staff breathing in the confined space such as submarine and spacecraft. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CO%20oxidation" title="CO oxidation">CO oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=CO%E2%82%82%20absorptio" title=" CO₂ absorptio"> CO₂ absorptio</a>, <a href="https://publications.waset.org/abstracts/search?q=potassium%20carbonate" title=" potassium carbonate"> potassium carbonate</a>, <a href="https://publications.waset.org/abstracts/search?q=CuMnCe%20metal%20oxide" title=" CuMnCe metal oxide"> CuMnCe metal oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=confined%20space" title=" confined space"> confined space</a> </p> <a href="https://publications.waset.org/abstracts/114912/application-and-regeneration-of-cumnceo-catalyst-supporting-k2co3-sorbent-adapted-to-co-oxidation-and-co2-absorption" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/114912.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">119</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">36</span> Characterization of Shiga Toxin Escherichia coli Recovered from a Beef Processing Facility within Southern Ontario and Comparative Performance of Molecular Diagnostic Platforms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jessica%20C.%20Bannon">Jessica C. Bannon</a>, <a href="https://publications.waset.org/abstracts/search?q=Cleso%20M.%20Jordao%20Jr."> Cleso M. Jordao Jr.</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Melebari"> Mohammad Melebari</a>, <a href="https://publications.waset.org/abstracts/search?q=Carlos%20Leon-Velarde"> Carlos Leon-Velarde</a>, <a href="https://publications.waset.org/abstracts/search?q=Roger%20Johnson"> Roger Johnson</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20Warriner"> Keith Warriner</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There has been an increased incidence of non-O157 Shiga Toxin Escherichia coli (STEC) with six serotypes (Top 6) being implicated in causing haemolytic uremic syndrome (HUS). Beef has been suggested to be a significant vehicle for non-O157 STEC although conclusive evidence has yet to be obtained. The following aimed to determine the prevalence of the Top 6 non-O157 STEC in beef processing using three different diagnostic platforms then characterize the recovered isolates. Hide, carcass and environmental swab samples (n = 60) were collected from a beef processing facility over a 12 month period. Enriched samples were screened using Biocontrol GDS, BAX or PALLgene molecular diagnostic tests. Presumptive non-O157 STEC positive samples were confirmed using conventional PCR and serology. STEC was detected by GDS (55% positive), BAX (85% positive), and PALLgene (93%). However, during confirmation testing only 8 of the 60 samples (13%) were found to harbour STEC. Interestingly, the presence of virulence factors in the recovered isolates was unstable and readily lost during subsequent sub-culturing. There is a low prevalence of Top 6 non-O157 STEC associated with beef although other serotypes are encountered. Yet, the instability of the virulence factors in recovered strains would question their clinical relevance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beef" title="beef">beef</a>, <a href="https://publications.waset.org/abstracts/search?q=food%20microbiology" title=" food microbiology"> food microbiology</a>, <a href="https://publications.waset.org/abstracts/search?q=shiga%20toxin" title=" shiga toxin"> shiga toxin</a>, <a href="https://publications.waset.org/abstracts/search?q=STEC" title=" STEC"> STEC</a> </p> <a href="https://publications.waset.org/abstracts/28089/characterization-of-shiga-toxin-escherichia-coli-recovered-from-a-beef-processing-facility-within-southern-ontario-and-comparative-performance-of-molecular-diagnostic-platforms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28089.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">461</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">35</span> Determining the Functionality of Urban Wildlife with Large Megafauna: A Case Study from Chobe District, Northern Botswana</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tempe%20S.%20F.%20Adams">Tempe S. F. Adams</a>, <a href="https://publications.waset.org/abstracts/search?q=Michael%20J.%20Chase"> Michael J. Chase</a>, <a href="https://publications.waset.org/abstracts/search?q=Tracey%20L.%20Rogers"> Tracey L. Rogers</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20E.%20A.%20Leggett"> Keith E. A. Leggett</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Transfrontier wildlife corridors can be successful conservation tools, connecting protected areas and reducing the impact of habitat fragmentation on mobile species. Urban wildlife corridors have been proposed as a potential mitigation tool to facilitate the passage of elephants through towns without causing conflict with urban communities. However, because such corridors are typically narrow and close to human development, wildlife (particularly large mammals) may be less likely to use them. We used remote-sensor camera traps and global positioning system collars to identify the movement patterns of African elephants Loxondonta africana through narrow, urban corridors in Botswana. The corridors were in three types of human-dominated land-use designations with varying levels of human activity: agricultural, industrial and open space recreational land. We found that elephants used the corridors within all three land-use designations and we identified, using a model selection approach, that season, time of day and rainfall were important factors in determining the presence of elephants in the corridors. Elephants moved more slowly through the narrow corridors compared with their movement patterns through broader, wide-ranging corridors. Our results indicate that urban wildlife corridors are useful for facilitating elephants to pass through urban areas. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=camera%20traps" title="camera traps">camera traps</a>, <a href="https://publications.waset.org/abstracts/search?q=conservation" title=" conservation"> conservation</a>, <a href="https://publications.waset.org/abstracts/search?q=human-elephant%20coexistence" title=" human-elephant coexistence"> human-elephant coexistence</a>, <a href="https://publications.waset.org/abstracts/search?q=land%20management" title=" land management"> land management</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20wildlife%20corridors" title=" urban wildlife corridors"> urban wildlife corridors</a> </p> <a href="https://publications.waset.org/abstracts/68557/determining-the-functionality-of-urban-wildlife-with-large-megafauna-a-case-study-from-chobe-district-northern-botswana" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68557.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">34</span> Vision-Based Daily Routine Recognition for Healthcare with Transfer Learning</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bruce%20X.%20B.%20Yu">Bruce X. B. Yu</a>, <a href="https://publications.waset.org/abstracts/search?q=Yan%20Liu"> Yan Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20C.%20C.%20Chan"> Keith C. C. Chan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We propose to record Activities of Daily Living (ADLs) of elderly people using a vision-based system so as to provide better assistive and personalization technologies. Current ADL-related research is based on data collected with help from non-elderly subjects in laboratory environments and the activities performed are predetermined for the sole purpose of data collection. To obtain more realistic datasets for the application, we recorded ADLs for the elderly with data collected from real-world environment involving real elderly subjects. Motivated by the need to collect data for more effective research related to elderly care, we chose to collect data in the room of an elderly person. Specifically, we installed Kinect, a vision-based sensor on the ceiling, to capture the activities that the elderly subject performs in the morning every day. Based on the data, we identified 12 morning activities that the elderly person performs daily. To recognize these activities, we created a HARELCARE framework to investigate into the effectiveness of existing Human Activity Recognition (HAR) algorithms and propose the use of a transfer learning algorithm for HAR. We compared the performance, in terms of accuracy, and training progress. Although the collected dataset is relatively small, the proposed algorithm has a good potential to be applied to all daily routine activities for healthcare purposes such as evidence-based diagnosis and treatment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=daily%20activity%20recognition" title="daily activity recognition">daily activity recognition</a>, <a href="https://publications.waset.org/abstracts/search?q=healthcare" title=" healthcare"> healthcare</a>, <a href="https://publications.waset.org/abstracts/search?q=IoT%20sensors" title=" IoT sensors"> IoT sensors</a>, <a href="https://publications.waset.org/abstracts/search?q=transfer%20learning" title=" transfer learning"> transfer learning</a> </p> <a href="https://publications.waset.org/abstracts/126592/vision-based-daily-routine-recognition-for-healthcare-with-transfer-learning" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/126592.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">132</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">33</span> A Qualitative Study of the Psychologically Challenging Aspects of Taking Part in an Ultra-Endurance Atlantic Rowing Event</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=John%20Allbutt">John Allbutt</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrew%20Murray"> Andrew Murray</a>, <a href="https://publications.waset.org/abstracts/search?q=Jonathan%20Ling"> Jonathan Ling</a>, <a href="https://publications.waset.org/abstracts/search?q=Thomas%20M.%20Heffernan"> Thomas M. Heffernan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ultra-endurance events place unique physical and psychological pressures on participants. In this study, we examined the psychologically challenging aspects of taking part in a 3000 mile transatlantic rowing race using a qualitative approach. To date, more people have been into space than have rowed an ocean and only one psychological study has been conducted on this experience which had a specific research focus. The current study was a qualitative study using semi-structured interviews. Participants were an opportunity sample of seven competitors from a recent ocean rowing race. Participants were asked about the psychological aspects of the event after it had finished. The data were analysed using thematic analysis. Several themes emerged from the analysis. These related to: 1) preparation; 2) bodily aches/pains, 3) race setbacks; 4) boat conditions; 5) interpersonal factors and communication; 6) strategies for managing stress and interpersonal tensions. While participants were generally very positive about the event, the analysis showed that they experienced significant psychological challenges during their voyage. Competitors paid considerable attention to preparing for the physical challenges of the event. However, not all prospective competitors gave the same time to preparing for psychological factors or were aware how they might play out during their voyage. All Atlantic rowing crews should be aware of the psychological challenges they face, and have strategies in place to help cope with the psychological strain of taking part. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=confinement%20experiences" title="confinement experiences">confinement experiences</a>, <a href="https://publications.waset.org/abstracts/search?q=ocean%20rowing" title=" ocean rowing"> ocean rowing</a>, <a href="https://publications.waset.org/abstracts/search?q=stress" title=" stress"> stress</a>, <a href="https://publications.waset.org/abstracts/search?q=ultra-endurance%20sport" title=" ultra-endurance sport"> ultra-endurance sport</a> </p> <a href="https://publications.waset.org/abstracts/48810/a-qualitative-study-of-the-psychologically-challenging-aspects-of-taking-part-in-an-ultra-endurance-atlantic-rowing-event" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48810.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">332</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">32</span> Mapping Thermal Properties Using Resistivity, Lithology and Thermal Conductivity Measurements</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Riccardo%20Pasquali">Riccardo Pasquali</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20Harlin"> Keith Harlin</a>, <a href="https://publications.waset.org/abstracts/search?q=Mark%20Muller"> Mark Muller</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The ShallowTherm project is focussed on developing and applying a methodology for extrapolating relatively sparsely sampled thermal conductivity measurements across Ireland using mapped Litho-Electrical (LE) units. The primary data used consist of electrical resistivities derived from the Geological Survey Ireland Tellus airborne electromagnetic dataset, GIS-based maps of Irish geology, and rock thermal conductivities derived from both the current Irish Ground Thermal Properties (IGTP) database and a new programme of sampling and laboratory measurement. The workflow has been developed across three case-study areas that sample a range of different calcareous, arenaceous, argillaceous, and volcanic lithologies. Statistical analysis of resistivity data from individual geological formations has been assessed and integrated with detailed lithological descriptions to define distinct LE units. Thermal conductivity measurements from core and hand samples have been acquired for every geological formation within each study area. The variability and consistency of thermal conductivity measurements within each LE unit is examined with the aim of defining a characteristic thermal conductivity (or range of thermal conductivities) for each LE unit. Mapping of LE units, coupled with characteristic thermal conductivities, provides a method of defining thermal conductivity properties at a regional scale and facilitating the design of ground source heat pump closed-loop collectors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=thermal%20conductivity" title="thermal conductivity">thermal conductivity</a>, <a href="https://publications.waset.org/abstracts/search?q=ground%20source%20heat%20pumps" title=" ground source heat pumps"> ground source heat pumps</a>, <a href="https://publications.waset.org/abstracts/search?q=resistivity" title=" resistivity"> resistivity</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20exchange" title=" heat exchange"> heat exchange</a>, <a href="https://publications.waset.org/abstracts/search?q=shallow%20geothermal" title=" shallow geothermal"> shallow geothermal</a>, <a href="https://publications.waset.org/abstracts/search?q=Ireland" title=" Ireland"> Ireland</a> </p> <a href="https://publications.waset.org/abstracts/130116/mapping-thermal-properties-using-resistivity-lithology-and-thermal-conductivity-measurements" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/130116.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">181</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">31</span> Effects of Alternative Opportunities and Compensation on Turnover Intention of Singapore PMET</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Han%20Guan%20Chew">Han Guan Chew</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20Yong%20Ngee%20Ng"> Keith Yong Ngee Ng</a>, <a href="https://publications.waset.org/abstracts/search?q=Shan-Wei%20Fan"> Shan-Wei Fan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In Singapore, talent retention is one of the most persistent and real issue companies have to grapple with due to the tight labour market. Being resource-scarce, Singapore depends solely on its talented pool of high quality human resource to sustain its competitive advantage in the global economy. But the complex and multifaceted nature of turnover phenomenon makes the prescription of effective talent retention strategies in such a competitive labour market very challenging, especially when it comes to monetary incentives, companies struggle to answer the question of “How much is enough?” By examining the interactive effects of perceived alternative employment opportunities, annual salary and satisfaction with compensation on the turnover intention of 102 Singapore Professionals, Managers, Executives and Technicians (PMET) through correlation analyses and multiple regressions, important insights into the psyche of the Singapore talent pool can be drawn. It is found that annual salary influence turnover intention indirectly through mediation and moderation effects on PMET’s satisfaction on compensation. PMET are also found to be heavily swayed by better external opportunities. This implies that talent retention strategies should not adopt a purely monetary based blanket approach but rather a comprehensive and holistic one that considers the dynamics of prevailing market conditions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=employee%20turnover" title="employee turnover">employee turnover</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20performers" title=" high performers"> high performers</a>, <a href="https://publications.waset.org/abstracts/search?q=knowledge%20workers" title=" knowledge workers"> knowledge workers</a>, <a href="https://publications.waset.org/abstracts/search?q=perceived%20alternative%20employment%20opportunities%20salary" title=" perceived alternative employment opportunities salary"> perceived alternative employment opportunities salary</a>, <a href="https://publications.waset.org/abstracts/search?q=satisfaction%20on%20compensation" title=" satisfaction on compensation"> satisfaction on compensation</a>, <a href="https://publications.waset.org/abstracts/search?q=Singapore%20PMET" title=" Singapore PMET"> Singapore PMET</a>, <a href="https://publications.waset.org/abstracts/search?q=talent%20retention" title=" talent retention"> talent retention</a> </p> <a href="https://publications.waset.org/abstracts/45906/effects-of-alternative-opportunities-and-compensation-on-turnover-intention-of-singapore-pmet" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45906.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">280</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">30</span> Correlation Between Ore Mineralogy and the Dissolution Behavior of K-Feldspar</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adrian%20Keith%20Caamino">Adrian Keith Caamino</a>, <a href="https://publications.waset.org/abstracts/search?q=Sina%20Shakibania"> Sina Shakibania</a>, <a href="https://publications.waset.org/abstracts/search?q=Lena%20Sunqvist-%C3%96qvist"> Lena Sunqvist-Öqvist</a>, <a href="https://publications.waset.org/abstracts/search?q=Jan%20Rosenkranz"> Jan Rosenkranz</a>, <a href="https://publications.waset.org/abstracts/search?q=Yousef%20Ghorbani"> Yousef Ghorbani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Feldspar minerals are one of the main components of the earth’s crust. They are tectosilicate, meaning that they mainly contain aluminum and silicon. Besides aluminum and silicon, they contain either potassium, sodium, or calcium. Accordingly, feldspar minerals are categorized into three main groups: K-feldspar, Na-feldspar, and Ca-feldspar. In recent years, the trend to use K-feldspar has grown tremendously, considering its potential to produce potash and alumina. However, the feldspar minerals, in general, are difficult to decompose for the dissolution of their metallic components. Several methods, including intensive milling, leaching under elevated pressure and temperature, thermal pretreatment, and the use of corrosive leaching reagents, have been proposed to improve its low dissolving efficiency. In this study, as part of the POTASSIAL EU project, to overcome the low dissolution efficiency of the K-feldspar components, mechanical activation using intensive milling followed by leaching using hydrochloric acid (HCl) was practiced. Grinding operational parameters, namely time, rotational speed, and ball-to-sample weight ratio, were studied using the Taguchi optimization method. Then, the mineralogy of the grinded samples was analyzed using a scanning electron microscope (SEM) equipped with automated quantitative mineralogy. After grinding, the prepared samples were subjected to HCl leaching. In the end, the dissolution efficiency of the main elements and impurities of different samples were correlated to the mineralogical characterization results. K-feldspar component dissolution is correlated with ore mineralogy, which provides insight into how to best optimize leaching conditions for selective dissolution. Further, it will have an effect on purifying steps taken afterward and the final value recovery procedures <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=K-feldspar" title="K-feldspar">K-feldspar</a>, <a href="https://publications.waset.org/abstracts/search?q=grinding" title=" grinding"> grinding</a>, <a href="https://publications.waset.org/abstracts/search?q=automated%20mineralogy" title=" automated mineralogy"> automated mineralogy</a>, <a href="https://publications.waset.org/abstracts/search?q=impurity" title=" impurity"> impurity</a>, <a href="https://publications.waset.org/abstracts/search?q=leaching" title=" leaching"> leaching</a> </p> <a href="https://publications.waset.org/abstracts/161198/correlation-between-ore-mineralogy-and-the-dissolution-behavior-of-k-feldspar" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161198.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">76</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">29</span> An Investigation of the Fracture Behavior of Model MgO-C Refractories Using the Discrete Element Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J%C3%BAlia%20Cristina%20Bonaldo">Júlia Cristina Bonaldo</a>, <a href="https://publications.waset.org/abstracts/search?q=Christophe%20L.%20Martin"> Christophe L. Martin</a>, <a href="https://publications.waset.org/abstracts/search?q=Martiniano%20Piccico"> Martiniano Piccico</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20Beale"> Keith Beale</a>, <a href="https://publications.waset.org/abstracts/search?q=Roop%20Kishore"> Roop Kishore</a>, <a href="https://publications.waset.org/abstracts/search?q=Severine%20Romero-Baivier"> Severine Romero-Baivier</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Refractory composite materials employed in steel casting applications are prone to cracking and material damage because of the very high operating temperature (thermal shock) and mismatched properties of the constituent phases. The fracture behavior of a model MgO-C composite refractory is investigated to quantify and characterize its thermal shock resistance, employing a cold crushing test and Brazilian test with fractographic analysis. The discrete element method (DEM) is used to generate numerical refractory composites. The composite in DEM is represented by an assembly of bonded particle clusters forming perfectly spherical aggregates and single spherical particles. For the stresses to converge with a low standard deviation and a minimum number of particles to allow reasonable CPU calculation time, representative volume element (RVE) numerical packings are created with various numbers of particles. Key microscopic properties are calibrated sequentially by comparing stress-strain curves from crushing experimental data. Comparing simulations with experiments also allows for the evaluation of crack propagation, fracture energy, and strength. The crack propagation during Brazilian experimental tests is monitored with digital image correlation (DIC). Simulations and experiments reveal three distinct types of fracture. The crack may spread throughout the aggregate, at the aggregate-matrix interface, or throughout the matrix. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=refractory%20composite" title="refractory composite">refractory composite</a>, <a href="https://publications.waset.org/abstracts/search?q=fracture%20mechanics" title=" fracture mechanics"> fracture mechanics</a>, <a href="https://publications.waset.org/abstracts/search?q=crack%20propagation" title=" crack propagation"> crack propagation</a>, <a href="https://publications.waset.org/abstracts/search?q=DEM" title=" DEM"> DEM</a> </p> <a href="https://publications.waset.org/abstracts/172105/an-investigation-of-the-fracture-behavior-of-model-mgo-c-refractories-using-the-discrete-element-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/172105.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">81</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">28</span> Microbial Degradation of Lignin for Production of Valuable Chemicals</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fnu%20Asina">Fnu Asina</a>, <a href="https://publications.waset.org/abstracts/search?q=Ivana%20Brzonova"> Ivana Brzonova</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20Voeller"> Keith Voeller</a>, <a href="https://publications.waset.org/abstracts/search?q=Yun%20Ji"> Yun Ji</a>, <a href="https://publications.waset.org/abstracts/search?q=Alena%20Kubatova"> Alena Kubatova</a>, <a href="https://publications.waset.org/abstracts/search?q=Evguenii%20Kozliak"> Evguenii Kozliak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Lignin, a heterogeneous three-dimensional biopolymer, is one of the building blocks of lignocellulosic biomass. Due to its limited chemical reactivity, lignin is currently processed as a low-value by-product in pulp and paper mills. Among various industrial lignins, Kraft lignin represents a major source of by-products generated during the widely employed pulping process across the pulp and paper industry. Therefore, valorization of Kraft lignin holds great potential as this would provide a readily available source of aromatic compounds for various industrial applications. Microbial degradation is well known for using both highly specific ligninolytic enzymes secreted by microorganisms and mild operating conditions compared with conventional chemical approaches. In this study, the degradation of Indulin AT lignin was assessed by comparing the effects of Basidiomycetous fungi (Coriolus versicolour and Trametes gallica) and Actinobacteria (Mycobacterium sp. and Streptomyces sp.) to two commercial laccases, T. versicolour ( ≥ 10 U/mg) and C. versicolour ( ≥ 0.3 U/mg). After 54 days of cultivation, the extent of microbial degradation was significantly higher than that of commercial laccases, reaching a maximum of 38 wt% degradation for C. versicolour treated samples. Lignin degradation was further confirmed by thermal carbon analysis with a five-step temperature protocol. Compared with commercial laccases, a significant decrease in char formation at 850ºC was observed among all microbial-degraded lignins with a corresponding carbon percentage increase from 200ºC to 500ºC. To complement the carbon analysis result, chemical characterization of the degraded products at different stages of the delignification by microorganisms and commercial laccases was performed by Pyrolysis-GC-MS. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=lignin" title="lignin">lignin</a>, <a href="https://publications.waset.org/abstracts/search?q=microbial%20degradation" title=" microbial degradation"> microbial degradation</a>, <a href="https://publications.waset.org/abstracts/search?q=pyrolysis-GC-MS" title=" pyrolysis-GC-MS"> pyrolysis-GC-MS</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20carbon%20analysis" title=" thermal carbon analysis"> thermal carbon analysis</a> </p> <a href="https://publications.waset.org/abstracts/30567/microbial-degradation-of-lignin-for-production-of-valuable-chemicals" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30567.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">412</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">27</span> Exhaust Gas Cleaning Systems on Board Ships and Impact on Crews’ Health: A Feasibility Study Protocol</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Despoina%20Andrioti%20Bygvraa">Despoina Andrioti Bygvraa</a>, <a href="https://publications.waset.org/abstracts/search?q=Ida-Maja%20Hassell%C3%B6v"> Ida-Maja Hassellöv</a>, <a href="https://publications.waset.org/abstracts/search?q=George%20Charalambous"> George Charalambous</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Exhaust gas cleaning systems, also known as scrubbers, are today widely used to allow for the use of High Sulphur Heavy Fuel Oil and still comply with the regulations limiting sulphur content in marine fuels. There are extensive concerns about environmental consequences, especially in the Baltic Sea, from the wide-scale use of scrubbers, as the wash water is acidic (ca pH 3) and contains high concentrations of toxic, carcinogenic, and mutagenic substances. The aim of this feasibility study is to investigate the potential adverse effects on seafarers’ health with the ultimate goal of raising awareness of chemical-related health and safety issues in the shipping environment. The project got funding from the Swedish Foundation. The team will extend previously compiled data on scrubber wash water concentrations of hazardous substances and pH to include the use of strong base in closed-loop scrubbers, and scoping assessment on handling and disposing practices. Based on the findings (a), a systematic review of risk assessment will follow to show the risk of exposures, the establishment of the hazardous levels for human health as well as the respective prevention practices. In addition, the researchers will perform (b) a systematic review to identify facilitators and barriers of the crew on compliance with the safe handling of chemicals. The study will run for 12 months, delivering (a) a risk assessment inventory with risk exposures and (b) a course description of safe handling practices. This feasibility study could provide valuable knowledge on how pollutants found in scrubbers should be considered from a human health perspective to facilitate evidence-based informed decisions in future technology- and policy development to make shipping a safer, healthier, and more attractive workplace. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=health%20and%20safety" title="health and safety">health and safety</a>, <a href="https://publications.waset.org/abstracts/search?q=seafarers" title=" seafarers"> seafarers</a>, <a href="https://publications.waset.org/abstracts/search?q=scrubbers" title=" scrubbers"> scrubbers</a>, <a href="https://publications.waset.org/abstracts/search?q=chemicals" title=" chemicals"> chemicals</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20exposures" title=" risk exposures"> risk exposures</a> </p> <a href="https://publications.waset.org/abstracts/183294/exhaust-gas-cleaning-systems-on-board-ships-and-impact-on-crews-health-a-feasibility-study-protocol" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/183294.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">58</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">26</span> Physical Fitness in Omani Children with Sickle Cell Disease and Sickle Cell Trait</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mahfoodha%20Al-Kitani">Mahfoodha Al-Kitani</a>, <a href="https://publications.waset.org/abstracts/search?q=Dylan%20Thompson"> Dylan Thompson</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20Stokes"> Keith Stokes</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Sickle cell disease (SCD) and sickle cell trait (SCT) are the most common hematological diseases in Oman according to the national survey of genetic blood disorders. The aim of this study was to determine markers of physical fitness and anthropometrics indices in children with sickle cell disease and children with sickle cell trait and compare them with normal healthy children of the same age. One hundred and twenty male children participated in the present study divided to three groups: 40 with sickle disease (SCD; age, 13.3(.80), height, 131.9(3.5), mass, 29.2(3.1)); 40 with sickle cell trait (SCT; age, 12.2(.80), height, 141.0(9.9), mass, 38.0(4.4)); and 40 controls with normal hemoglobin (Con; age, 12.8(.80), height, 139.4(8.7), mass, 37.2(4.3)). All children completed a 5-min running exercise test on a treadmill at speed corresponding to 5 km/hr. Heart rate and was recorded during exercise and during 10-min of recovery. Blood lactate was measured before and 5 min after the completion of exercise. Children with SCD exhibited a higher mean value (P < 0.05) for percent body fat and fat mass than the normal healthy subjects and SCT subjects. Resting values of hemoglobin were similar in SCT (11.04(.78)) and control (10.8(94)) groups, and lower in SCD (8.89(.54); P < 0.05). There was a strong correlation between peak heart rate and resting hemoglobin levels for the three groups (r= -.472. n= 120, p < .0005).The SCD group (175.2(10.3)) exhibited higher mean heart rate during exercise than those observed in the SCT (143.7(9.5)) and normal control children (144.5(22.4); P < 0.05). Additionally, SCD children showed higher serum lactate values before and after treadmill exercise compared to the other groups (P < 0.05). Children with sickle cell trait demonstrate similar physical fitness level and similar exercise responses to treadmill stress test to normal children. In contrast, SCD children have lower body mass, higher fat mass and lower physical fitness than children with SCT and healthy controls. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sickle%20cell%20disease" title="sickle cell disease">sickle cell disease</a>, <a href="https://publications.waset.org/abstracts/search?q=sickle%20cell%20trait" title=" sickle cell trait"> sickle cell trait</a>, <a href="https://publications.waset.org/abstracts/search?q=children" title=" children"> children</a>, <a href="https://publications.waset.org/abstracts/search?q=exercise" title=" exercise"> exercise</a> </p> <a href="https://publications.waset.org/abstracts/3193/physical-fitness-in-omani-children-with-sickle-cell-disease-and-sickle-cell-trait" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3193.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">429</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">25</span> Design and Analysis for a 4-Stage Crash Energy Management System for Railway Vehicles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ziwen%20Fang">Ziwen Fang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jianran%20Wang"> Jianran Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Hongtao%20Liu"> Hongtao Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Weiguo%20Kong"> Weiguo Kong</a>, <a href="https://publications.waset.org/abstracts/search?q=Kefei%20Wang"> Kefei Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Qi%20Luo"> Qi Luo</a>, <a href="https://publications.waset.org/abstracts/search?q=Haifeng%20Hong"> Haifeng Hong</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A 4-stage crash energy management (CEM) system for subway rail vehicles used by Massachusetts Bay Transportation Authority (MBTA) in the USA is developed in this paper. The 4 stages of this new CEM system include 1) energy absorbing coupler (draft gear and shear bolts), 2) primary energy absorbers (aluminum honeycomb structured box), 3) secondary energy absorbers (crush tube), and 4) collision post and corner post. A sliding anti-climber and a fixed anti-climber are designed at the front of the vehicle cooperating with the 4-stage CEM to maximize the energy to be absorbed and minimize the damage to passengers and crews. In order to investigate the effectiveness of this CEM system, both finite element (FE) methods and crashworthiness test have been employed. The whole vehicle consists of 3 married pairs, i.e., six cars. In the FE approach, full-scale railway car models are developed and different collision cases such as a single moving car impacting a rigid wall, two moving cars into a rigid wall, two moving cars into two stationary cars, six moving cars into six stationary cars and so on are investigated. The FE analysis results show that the railway vehicle incorporating this CEM system has a superior crashworthiness performance. In the crashworthiness test, a simplified vehicle front end including the sliding anti-climber, the fixed anti-climber, the primary energy absorbers, the secondary energy absorber, the collision post and the corner post is built and impacted to a rigid wall. The same test model is also analyzed in the FE and the results such as crushing force, stress, and strain of critical components, acceleration and velocity curves are compared and studied. FE results show very good comparison to the test results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=railway%20vehicle%20collision" title="railway vehicle collision">railway vehicle collision</a>, <a href="https://publications.waset.org/abstracts/search?q=crash%20energy%20management%20design" title=" crash energy management design"> crash energy management design</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=crashworthiness%20test" title=" crashworthiness test"> crashworthiness test</a> </p> <a href="https://publications.waset.org/abstracts/92478/design-and-analysis-for-a-4-stage-crash-energy-management-system-for-railway-vehicles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/92478.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">402</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">24</span> HPSEC Application as a New Indicator of Nitrification Occurrence in Water Distribution Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sina%20Moradi">Sina Moradi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanly%20Liu"> Sanly Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Christopher%20W.%20K.%20Chow"> Christopher W. K. Chow</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20Van%20Leeuwen"> John Van Leeuwen</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Cook"> David Cook</a>, <a href="https://publications.waset.org/abstracts/search?q=Mary%20Drikas"> Mary Drikas</a>, <a href="https://publications.waset.org/abstracts/search?q=Soha%20Habibi"> Soha Habibi</a>, <a href="https://publications.waset.org/abstracts/search?q=Rose%20Amal"> Rose Amal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In recent years, chloramine has been widely used for both primary and secondary disinfection. However, a major concern with the use of chloramine as a secondary disinfectant is the decay of chloramine and nitrification occurrence. The management of chloramine decay and the prevention of nitrification are critical for water utilities managing chloraminated drinking water distribution systems. The detection and monitoring of nitrification episodes is usually carried out through measuring certain water quality parameters, which are commonly referred to as indicators of nitrification. The approach taken in this study was to collect water samples from different sites throughout a drinking water distribution systems, Tailem Bend – Keith (TBK) in South Australia, and analyse the samples by high performance size exclusion chromatography (HPSEC). We investigated potential association between the water qualities from HPSEC analysis with chloramine decay and/or nitrification occurrence. MATLAB 8.4 was used for data processing of HPSEC data and chloramine decay. An increase in the absorbance signal of HPSEC profiles at λ=230 nm between apparent molecular weights of 200 to 1000 Da was observed at sampling sites that experienced rapid chloramine decay and nitrification while its absorbance signal of HPSEC profiles at λ=254 nm decreased. An increase in absorbance at λ=230 nm and AMW < 500 Da was detected for Raukkan CT (R.C.T), a location that experienced nitrification and had significantly lower chloramine residual (<0.1 mg/L). This increase in absorbance was not detected in other sites that did not experience nitrification. Moreover, the UV absorbance at 254 nm of the HPSEC spectra was lower at R.C.T. than other sites. In this study, a chloramine residual index (C.R.I) was introduced as a new indicator of chloramine decay and nitrification occurrence, and is defined based on the ratio of area underneath the HPSEC spectra at two different wavelengths of 230 and 254 nm. The C.R.I index is able to indicate DS sites that experienced nitrification and rapid chloramine loss. This index could be useful for water treatment and distribution system managers to know if nitrification is occurring at a specific location in water distribution systems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nitrification" title="nitrification">nitrification</a>, <a href="https://publications.waset.org/abstracts/search?q=HPSEC" title=" HPSEC"> HPSEC</a>, <a href="https://publications.waset.org/abstracts/search?q=chloramine%20decay" title=" chloramine decay"> chloramine decay</a>, <a href="https://publications.waset.org/abstracts/search?q=chloramine%20residual%20index" title=" chloramine residual index"> chloramine residual index</a> </p> <a href="https://publications.waset.org/abstracts/41659/hpsec-application-as-a-new-indicator-of-nitrification-occurrence-in-water-distribution-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41659.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">298</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">23</span> KTiPO4F: The Negative Electrode Material for Potassium Batteries</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vahid%20Ramezankhani">Vahid Ramezankhani</a>, <a href="https://publications.waset.org/abstracts/search?q=Keith%20J.%20Stevenson"> Keith J. Stevenson</a>, <a href="https://publications.waset.org/abstracts/search?q=Stanislav.%20S.%20Fedotov"> Stanislav. S. Fedotov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Lithium-ion batteries (LIBs) play a pivotal role in achieving the key objective “zero-carbon emission” as countries agreed to reach a 1.5ᵒC global warming target according to the Paris agreement. Nowadays, due to the tremendous mobile and stationary consumption of small/large-format LIBs, the demand and consequently the price for such energy storage devices have been raised. The aforementioned challenges originate from the shrinkage of the major applied critical materials in these batteries, such as cobalt (Co), nickel (Ni), Lithium (Li), graphite (G), and manganese (Mn). Therefore, it is imperative to consider alternative elements to address issues corresponding to the limitation of resources around the globe. Potassium (K) is considered an effective alternative to Li since K is a more abundant element, has a higher operating potential, a faster diffusion rate, and the lowest stokes radius in comparison to the closest neighbors in the periodic table (Li and Na). Among all reported materials for metal-ion batteries, some of them possess the general formula AMXO4L [A = Li, Na, K; M = Fe, Ti, V; X = P, S, Si; L= O, F, OH] is of potential to be applied both as anode and cathode and enable researchers to investigate them in the full symmetric battery format. KTiPO4F (KTP structural material) has been previously reported by our group as a promising cathode with decent electronic properties. Herein, we report a synthesis, crystal structure characterization, morphology, as well as K-ion storage properties of KTiPO4F. Our investigation reveals that KTiPO4F delivers discharge capacity > 150 mAh/g at 26.6 mA/g (C/5 current rate) in the potential window of 0.001-3 V. Surprisingly, the cycling performance of C-KTiPO4F//K cell is stable for 1000 cycles at 130 mA/g (C current rate), presenting capacity > 130 mAh/g. More interestingly, we achieved to assemble full symmetric batteries where carbon-coated KTiPO4F serves as both negative and positive electrodes, delivering >70 mAh/g in the potential range of 0.001-4.2V. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anode%20material" title="anode material">anode material</a>, <a href="https://publications.waset.org/abstracts/search?q=potassium%20battery" title=" potassium battery"> potassium battery</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20characterization" title=" chemical characterization"> chemical characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20properties" title=" electrochemical properties"> electrochemical properties</a> </p> <a href="https://publications.waset.org/abstracts/152828/ktipo4f-the-negative-electrode-material-for-potassium-batteries" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152828.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">220</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=Keith%20Crews&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Keith%20Crews&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a 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