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of liquid</title> <meta name="description" content="Search results for: deposition of liquid"> <meta name="keywords" content="deposition of liquid"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="deposition of liquid"> <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> 2764</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: deposition of liquid</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2764</span> Inorganic Microporous Membranes Fabricated by Atmospheric Pressure Plasma Liquid Deposition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Damian%20A.%20Mooney">Damian A. Mooney</a>, <a href="https://publications.waset.org/abstracts/search?q=Michael%20T.%20P.%20Mc%20Cann"> Michael T. P. Mc Cann</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20M.%20Don%20MacElroy"> J. M. Don MacElroy</a>, <a href="https://publications.waset.org/abstracts/search?q=Olli%20Antson"> Olli Antson</a>, <a href="https://publications.waset.org/abstracts/search?q=Denis%20P.%20Dowling"> Denis P. Dowling</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Atmospheric pressure plasma liquid deposition (APPLD) is a novel technology used for the deposition of thin films via the injection of a reactive liquid precursor into a high-energy discharge plasma at ambient pressure. In this work, APPLD, utilising a TEOS precursor, was employed to produce asymmetric membranes consisting of a thin (100 nm) layer of deposited silica on a microporous silica support in order to assess their suitability for high temperature gas separation applications. He and N₂ gas permeability measurements were made for each of the fabricated membranes and a maximum ideal He/N₂ selectivity of 66 was observed at room temperature. He, N₂ and CO2 gas permeances were also measured at the elevated temperature of 673K and ideal He/N₂ and CO₂/N₂ selectivities of 300 and 7.4, respectively, were observed. The results suggest that this plasma-based deposition technique can be a viable method for the manufacture of membranes for the efficient separation of high temperature, post-combustion gases, including that of CO₂/N₂ where the constituent gases differ in size by fractions of an Ångstrom. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=asymmetric%20membrane" title="asymmetric membrane">asymmetric membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=CO%E2%82%82%20separation" title=" CO₂ separation"> CO₂ separation</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20temperature" title=" high temperature"> high temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=plasma%20deposition" title=" plasma deposition"> plasma deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=thin%20films" title=" thin films"> thin films</a> </p> <a href="https://publications.waset.org/abstracts/48713/inorganic-microporous-membranes-fabricated-by-atmospheric-pressure-plasma-liquid-deposition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48713.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">2763</span> The Dependence of the Liquid Application on the Coverage of the Sprayed Objects in Terms of the Characteristics of the Sprayed Object during Spraying</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Beata%20Cieniawska">Beata Cieniawska</a>, <a href="https://publications.waset.org/abstracts/search?q=Deta%20%C5%81uczycka"> Deta Łuczycka</a>, <a href="https://publications.waset.org/abstracts/search?q=Katarzyna%20Dere%C5%84"> Katarzyna Dereń</a> </p> <p class="card-text"><strong>Abstract:</strong></p> When assessing the quality of the spraying procedure, three indicators are used: uneven distribution of precipitation of liquid sprayed, degree of coverage of sprayed surfaces, and deposition of liquid spraying However, there is a lack of information on the relationship between the quality parameters of the procedure. Therefore, the research was carried out at the Institute of Agricultural Engineering of Wrocław University of Environmental and Life Sciences. The aim of the study was to determine the relationship between the degree of coverage of sprayed surfaces and the deposition of liquid in the aspect of the parametric characteristics of the protected plant using selected single and double stream nozzles. Experiments were conducted under laboratory conditions. The carrier of nozzles acted as an independent self-propelled sprayer used for spraying, whereas the parametric characteristics of plants were determined using artificial plants as the ratio of the vertical projection surface and the horizontal projection surface. The results and their analysis showed a strong and very strong correlation between the analyzed parameters in terms of the characteristics of the sprayed object. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=degree%20of%20coverage" title="degree of coverage">degree of coverage</a>, <a href="https://publications.waset.org/abstracts/search?q=deposition%20of%20liquid" title=" deposition of liquid"> deposition of liquid</a>, <a href="https://publications.waset.org/abstracts/search?q=nozzle" title=" nozzle"> nozzle</a>, <a href="https://publications.waset.org/abstracts/search?q=spraying" title=" spraying"> spraying</a> </p> <a href="https://publications.waset.org/abstracts/78384/the-dependence-of-the-liquid-application-on-the-coverage-of-the-sprayed-objects-in-terms-of-the-characteristics-of-the-sprayed-object-during-spraying" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78384.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">334</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2762</span> Simulation of the Asphaltene Deposition Rate in a Wellbore Blockage via Computational Fluid Dynamic</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Xiaodong%20Gao">Xiaodong Gao</a>, <a href="https://publications.waset.org/abstracts/search?q=Pingchuan%20Dong"> Pingchuan Dong</a>, <a href="https://publications.waset.org/abstracts/search?q=Qichao%20Gao"> Qichao Gao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There has been lots of published work focused on asphaltene deposited on the smooth pipe under steady conditions, while particle deposition on the blockage wellbores under transient conditions has not been well elucidated. This work attempts to predict the deposition rate of asphaltene particles in blockage tube through CFD simulation. The Euler-Lagrange equation has been applied during the flow of crude oil and asphaltene particles. The net gravitational force, virtual mass, pressure gradient, saffman lift, and drag forces are incorporated in the simulations process. Validation of CFD simulation results is compared to the benchmark experiments from the previous literature. Furthermore, the effect of blockage location, blockage length, and blockage thickness on deposition rate are also analyzed. The simulation results indicate that the maximum deposition rate of asphaltene occurs in the blocked tube section, and the greater the deposition thickness, the greater the deposition rate. Moreover, the deposition amount and maximum deposition rate along the length of the tube have the same trend. Results of this study are in the ability to better understand the deposition of asphaltene particles in production and help achieve to deal with the asphaltene challenges. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=asphaltene%20deposition%20rate" title="asphaltene deposition rate">asphaltene deposition rate</a>, <a href="https://publications.waset.org/abstracts/search?q=blockage%20length" title=" blockage length"> blockage length</a>, <a href="https://publications.waset.org/abstracts/search?q=blockage%20thickness" title=" blockage thickness"> blockage thickness</a>, <a href="https://publications.waset.org/abstracts/search?q=blockage%20diameter" title=" blockage diameter"> blockage diameter</a>, <a href="https://publications.waset.org/abstracts/search?q=transient%20condition" title=" transient condition"> transient condition</a> </p> <a href="https://publications.waset.org/abstracts/149723/simulation-of-the-asphaltene-deposition-rate-in-a-wellbore-blockage-via-computational-fluid-dynamic" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149723.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">202</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">2761</span> A Computational Analysis of Gas Jet Flow Effects on Liquid Aspiration in the Collison Nebulizer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=James%20Q.%20Feng">James Q. Feng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Pneumatic nebulizers (as variations based on the Collison nebulizer) have been widely used for producing fine aerosol droplets from a liquid material. As qualitatively described by many authors, the basic working principle of those nebulizers involves utilization of the negative pressure associated with an expanding gas jet to syphon liquid into the jet stream, then to blow and shear into liquid sheets, filaments, and eventually droplets. But detailed quantitative analysis based on fluid mechanics theory has been lacking in the literature. The purpose of present work is to investigate the nature of negative pressure distribution associated with compressible gas jet flow in the Collison nebulizer by a computational fluid dynamics (CFD) analysis, using an OpenFOAM® compressible flow solver. The value of the negative pressure associated with a gas jet flow is examined by varying geometric parameters of the jet expansion channel adjacent to the jet orifice outlet. Such an analysis can provide valuable insights into fundamental mechanisms in liquid aspiration process, helpful for effective design of the pneumatic atomizer in the Aerosol Jet® direct-write system for micro-feature, high-aspect-ratio material deposition in additive manufacturing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=collison%20nebulizer" title="collison nebulizer">collison nebulizer</a>, <a href="https://publications.waset.org/abstracts/search?q=compressible%20gas%20jet%20flow" title=" compressible gas jet flow"> compressible gas jet flow</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid%20aspiration" title=" liquid aspiration"> liquid aspiration</a>, <a href="https://publications.waset.org/abstracts/search?q=pneumatic%20atomization" title=" pneumatic atomization"> pneumatic atomization</a> </p> <a href="https://publications.waset.org/abstracts/86534/a-computational-analysis-of-gas-jet-flow-effects-on-liquid-aspiration-in-the-collison-nebulizer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/86534.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">179</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2760</span> Ionic Liquid Effects on Metal Ion-Based Extractions of Olefin/Paraffin Hydrocarbon</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ellen%20M.%20Lukasik">Ellen M. Lukasik</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In coordination and support of the Center for Innovative and Strategic Transformation of Alkane Resources (CISTAR) Research Experience for Teachers (RET) at the University of Texas at Austin and under the guidance and direction of Professor Joan Brennecke, this study examined the addition of silver in an ionic liquid used to separate cyclohexane from cyclohexene. We recreated the liquid-liquid separation experimental results from the literature on cyclohexene, cyclohexane, and [allylmim][Tf2N] to verify our method, then evaluated the separation performance of silver - ionic liquid (IL) mixtures by various characterization techniques. To introduce the concepts of this research in high school education, a lesson plan was developed to instruct students on the principles of liquid-liquid separation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ionic%20liquids" title="ionic liquids">ionic liquids</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid-liquid%20separation" title=" liquid-liquid separation"> liquid-liquid separation</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrocarbon" title=" hydrocarbon"> hydrocarbon</a>, <a href="https://publications.waset.org/abstracts/search?q=research%20experience%20for%20teachers" title=" research experience for teachers"> research experience for teachers</a> </p> <a href="https://publications.waset.org/abstracts/153896/ionic-liquid-effects-on-metal-ion-based-extractions-of-olefinparaffin-hydrocarbon" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153896.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">105</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">2759</span> Numerical Simulation on Bacteria-Carrying Particles Transport and Deposition in an Open Surgical Wound </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Xiuguo%20Zhao">Xiuguo Zhao</a>, <a href="https://publications.waset.org/abstracts/search?q=He%20Li"> He Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Alireza%20Yazdani"> Alireza Yazdani</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaoning%20Zheng"> Xiaoning Zheng</a>, <a href="https://publications.waset.org/abstracts/search?q=Xinxi%20Xu"> Xinxi Xu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wound infected poses a serious threat to the surgery on the patient during the process of surgery. Understanding the bacteria-carrying particles (BCPs) transportation and deposition in the open surgical wound model play essential role in protecting wound against being infected. Therefore BCPs transportation and deposition in the surgical wound model were investigated using force-coupling method (FCM) based computational fluid dynamics. The BCPs deposition in the wound was strongly associated with BCPs diameter and concentration. The results showed that the rise on the BCPs deposition was increasing not only with the increase of BCPs diameters but also with the increase of the BCPs concentration. BCPs deposition morphology was impacted by the combination of size distribution, airflow patterns and model geometry. The deposition morphology exhibited the characteristic with BCPs deposition on the sidewall in wound model and no BCPs deposition on the bottom of the wound model mainly because the airflow movement in one direction from up to down and then side created by laminar system constructing airflow patterns and then made BCPs hard deposit in the bottom of the wound model due to wound geometry limit. It was also observed that inertial impact becomes a main mechanism of the BCPs deposition. This work may contribute to next study in BCPs deposition limit, as well as wound infected estimation in surgical-site infections. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=BCPs%20deposition" title="BCPs deposition">BCPs deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=computational%20fluid%20dynamics" title=" computational fluid dynamics"> computational fluid dynamics</a>, <a href="https://publications.waset.org/abstracts/search?q=force-coupling%20method%20%28FCM%29" title=" force-coupling method (FCM)"> force-coupling method (FCM)</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20simulation" title=" numerical simulation"> numerical simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=open%20surgical%20wound%20model" title=" open surgical wound model"> open surgical wound model</a> </p> <a href="https://publications.waset.org/abstracts/62552/numerical-simulation-on-bacteria-carrying-particles-transport-and-deposition-in-an-open-surgical-wound" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62552.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">289</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2758</span> Enhancing the CO2 Photoreduction of SnFe2O4 by Surface Modification Through Acid Treatment and Au Deposition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Najmul%20Hasan">Najmul Hasan</a>, <a href="https://publications.waset.org/abstracts/search?q=Shiping%20Li"> Shiping Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Chunli%20Liu"> Chunli Liu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The synergy effect of surface modifications using the acid treatment and noble metal (Au) deposition on the efficiency of SnFe2O4 (SFO) nano-octahedron photocatalyst has been investigated. Inorganic acids (H2SO4 and HNO3) were employed to compare the effects of different acids. It has been found that after corrosion treatment using H2SO4 and deposition of Au nanoparticles, SnFe2O4 nano-octahedron (Au-S-SFO) showed significantly enhanced photocatalytic activity under simulated light irradiation. Au-S-SFO was characterized by XRD, XPS, EDS, FTIR, Uv-vis-DRS, SEM, PL, and EIS analysis. The mechanism for CO2 reduction was investigated by scavenger tests. The stability of Au-S-SFO was confirmed by continuously repeated tests followed by XRD analysis. The surface corrosion treatment of SFO octahedron with H2SO4 could produce hydroxyl group (-OH) and sulfonic acid group (-SO3H) as reaction sites. These active sites not only enhanced the Au nanoparticles deposition to the acid treated SFO surface but also acted as the Brønsted acid sites that enhance the water adsorption and provide protons for CTC degradation and CO2 reduction. These effects improved the carrier separation and transfer efficiency. In addition, the photocatalytic efficiency was further enhanced by the surface plasmon resonance (SPR) effect of Au nanoparticles deposited on the surface of acid-treated SFO. As a result of the synergy of both acid treatment and SPR effect from the Au NPs, Au-S-SFO exhibited the highest CO2 reduction activity with 2.81, 1.92, and 2.69 times higher evolution rates for CO, CH4, and H2, respectively than that of pure SFO. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=surface%20modification" title="surface modification">surface modification</a>, <a href="https://publications.waset.org/abstracts/search?q=CO2%20reduction" title=" CO2 reduction"> CO2 reduction</a>, <a href="https://publications.waset.org/abstracts/search?q=Au%20deposition" title=" Au deposition"> Au deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=Gas-liquid%20interfacial%20plasma" title=" Gas-liquid interfacial plasma"> Gas-liquid interfacial plasma</a> </p> <a href="https://publications.waset.org/abstracts/152546/enhancing-the-co2-photoreduction-of-snfe2o4-by-surface-modification-through-acid-treatment-and-au-deposition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152546.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">90</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">2757</span> Numerical Simulation and Analysis on Liquid Nitrogen Spray Heat Exchanger</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wenjing%20Ding">Wenjing Ding</a>, <a href="https://publications.waset.org/abstracts/search?q=Weiwei%20Shan"> Weiwei Shan</a>, <a href="https://publications.waset.org/abstracts/search?q=Zijuan"> Zijuan</a>, <a href="https://publications.waset.org/abstracts/search?q=Wang"> Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Chao%20He"> Chao He</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Liquid spray heat exchanger is the critical equipment of temperature regulating system by gaseous nitrogen which realizes the environment temperature in the range of -180 ℃~+180 ℃. Liquid nitrogen is atomized into smaller liquid drops through liquid nitrogen sprayer and then contacts with gaseous nitrogen to be cooled. By adjusting the pressure of liquid nitrogen and gaseous nitrogen, the flowrate of liquid nitrogen is changed to realize the required outlet temperature of heat exchanger. The temperature accuracy of shrouds is ±1 ℃. Liquid nitrogen spray heat exchanger is simulated by CATIA, and the numerical simulation is performed by FLUENT. The comparison between the tests and numerical simulation is conducted. Moreover, the results help to improve the design of liquid nitrogen spray heat exchanger. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=liquid%20nitrogen%20spray" title="liquid nitrogen spray">liquid nitrogen spray</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature%20regulating%20system" title=" temperature regulating system"> temperature regulating system</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20exchanger" title=" heat exchanger"> heat exchanger</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20simulation" title=" numerical simulation"> numerical simulation</a> </p> <a href="https://publications.waset.org/abstracts/73604/numerical-simulation-and-analysis-on-liquid-nitrogen-spray-heat-exchanger" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/73604.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">2756</span> Generation of Charged Nanoparticles in the Gas Phase and their Contribution to Deposition of GaN Films and Nanostructures during Atmospheric Pressure Chemical Vapor Deposition </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jin-Woo%20Park">Jin-Woo Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Sung-Soo%20Lee"> Sung-Soo Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Nong-Moon%20Hwang"> Nong-Moon Hwang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The generation of charged nanoparticles in the gas phase during the Chemical Vapor Deposition (CVD) process has been frequently reported with their subsequent deposition into films and nanostructures in many systems such as carbon, silicon and zinc oxide. The microstructure evolution of films and nanostructures is closely related with the size distribution of charged nanoparticles. To confirm the generation of charged nanoparticles during GaN, the generation of GaN charged nanoparticles was examined in an atmospheric pressure CVD process using a Differential Mobility Analyser (DMA) combined with a Faraday Cup Electrometer (FCE). It was confirmed that GaN charged nanoparticles were generated under the condition where GaN nanostructures were synthesized on the bare and Au-coated Si substrates. In addition, the deposition behaviour depends strongly on the charge transfer rate of metal substrates. On the metal substrates of a lower CTR such as Mo, the deposition rate of GaN was much lower than on those of a higher CTR such as Fe. GaN nanowires tend to grow on the substrates of a lower CTR whereas GaN thin films tend to be deposited on the substrates of a higher CTR. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chemical%20vapour%20deposition" title="chemical vapour deposition">chemical vapour deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=charged%20cluster%20model" title=" charged cluster model"> charged cluster model</a>, <a href="https://publications.waset.org/abstracts/search?q=generation%20of%20charged%20nanoparticles" title=" generation of charged nanoparticles"> generation of charged nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=deposition%20behaviour" title=" deposition behaviour"> deposition behaviour</a>, <a href="https://publications.waset.org/abstracts/search?q=nanostructures" title=" nanostructures"> nanostructures</a>, <a href="https://publications.waset.org/abstracts/search?q=gan" title=" gan"> gan</a>, <a href="https://publications.waset.org/abstracts/search?q=charged%20transfer%20rate" title=" charged transfer rate"> charged transfer rate</a> </p> <a href="https://publications.waset.org/abstracts/2530/generation-of-charged-nanoparticles-in-the-gas-phase-and-their-contribution-to-deposition-of-gan-films-and-nanostructures-during-atmospheric-pressure-chemical-vapor-deposition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2530.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">439</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2755</span> Droplet Entrainment and Deposition in Horizontal Stratified Two-Phase Flow</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Joshua%20Kim%20Schimpf">Joshua Kim Schimpf</a>, <a href="https://publications.waset.org/abstracts/search?q=Kyun%20Doo%20Kim"> Kyun Doo Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Jaseok%20Heo"> Jaseok Heo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the droplet behavior of under horizontal stratified flow regime for air and water flow in horizontal pipe experiments from a 0.24 m, 0.095 m, and 0.0486 m size diameter pipe are examined. The effects of gravity, pipe diameter, and turbulent diffusion on droplet deposition are considered. Models for droplet entrainment and deposition are proposed that considers developing length. Validation for experimental data dedicated from the REGARD, CEA and Williams, University of Illinois, experiment were performed using SPACE (Safety and Performance Analysis Code for Nuclear Power Plants). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=droplet" title="droplet">droplet</a>, <a href="https://publications.waset.org/abstracts/search?q=entrainment" title=" entrainment"> entrainment</a>, <a href="https://publications.waset.org/abstracts/search?q=deposition" title=" deposition"> deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=horizontal" title=" horizontal"> horizontal</a> </p> <a href="https://publications.waset.org/abstracts/66543/droplet-entrainment-and-deposition-in-horizontal-stratified-two-phase-flow" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66543.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">377</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">2754</span> Nano Effects of Nitrogen Ion Implantation on TiN Hard Coatings Deposited by Physical Vapour Deposition and Ion Beam Assisted Deposition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Branko%20Skoric">Branko Skoric</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandar%20Miletic"> Aleksandar Miletic</a>, <a href="https://publications.waset.org/abstracts/search?q=Pal%20Terek"> Pal Terek</a>, <a href="https://publications.waset.org/abstracts/search?q=Lazar%20Kovacevic"> Lazar Kovacevic</a>, <a href="https://publications.waset.org/abstracts/search?q=Milan%20Kukuruzovic"> Milan Kukuruzovic </a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we present the results of a study of TiN thin films which are deposited by a Physical Vapour Deposition (PVD) and Ion Beam Assisted Deposition (IBAD). In the present investigation the subsequent ion implantation was provided with N<sup>5+</sup> ions. The ion implantation was applied to enhance the mechanical properties of surface. The thin film deposition process exerts a number of effects such as crystallographic orientation, morphology, topography, densification of the films. A variety of analytic techniques were used for characterization, such as scratch test, calo test, Scanning electron microscopy (SEM), Atomic Force Microscope (AFM), X-ray diffraction (XRD) and Energy Dispersive X-ray analysis (EDAX). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=coating" title="coating">coating</a>, <a href="https://publications.waset.org/abstracts/search?q=super%20hard" title=" super hard"> super hard</a>, <a href="https://publications.waset.org/abstracts/search?q=ion%20implantation" title=" ion implantation"> ion implantation</a>, <a href="https://publications.waset.org/abstracts/search?q=nanohardness" title=" nanohardness"> nanohardness</a> </p> <a href="https://publications.waset.org/abstracts/42278/nano-effects-of-nitrogen-ion-implantation-on-tin-hard-coatings-deposited-by-physical-vapour-deposition-and-ion-beam-assisted-deposition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/42278.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">346</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">2753</span> Fabrication of Wearable Antennas through Thermal Deposition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jeff%20Letcher">Jeff Letcher</a>, <a href="https://publications.waset.org/abstracts/search?q=Dennis%20Tierney"> Dennis Tierney</a>, <a href="https://publications.waset.org/abstracts/search?q=Haider%20Raad"> Haider Raad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Antennas are devices for transmitting and/or receiving signals which make them a necessary component of any wireless system. In this paper, a thermal deposition technique is utilized as a method to fabricate antenna structures on substrates. Thin-film deposition is achieved by evaporating a source material (metals in our case) in a vacuum which allows vapor particles to travel directly to the target substrate which is encased with a mask that outlines the desired structure. The material then condenses back to solid state. This method is used in comparison to screen printing, chemical etching, and ink jet printing to indicate advantages and disadvantages to the method. The antenna created undergoes various testing of frequency ranges, conductivity, and a series of flexing to indicate the effectiveness of the thermal deposition technique. A single band antenna that is operated at 2.45 GHz intended for wearable and flexible applications was successfully fabricated through this method and tested. It is concluded that thermal deposition presents a feasible technique of producing such antennas. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=thermal%20deposition" title="thermal deposition">thermal deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=wearable%20antennas" title=" wearable antennas"> wearable antennas</a>, <a href="https://publications.waset.org/abstracts/search?q=bluetooth%20technology" title=" bluetooth technology"> bluetooth technology</a>, <a href="https://publications.waset.org/abstracts/search?q=flexible%20electronics" title=" flexible electronics"> flexible electronics</a> </p> <a href="https://publications.waset.org/abstracts/56810/fabrication-of-wearable-antennas-through-thermal-deposition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56810.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">282</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">2752</span> Surface Functionalization of Chemical Vapor Deposition Grown Graphene Film</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Prashanta%20Dhoj%20Adhikari">Prashanta Dhoj Adhikari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We report the introduction of the active surface functionalization group on chemical vapor deposition (CVD) grown graphene film by wet deposition method. The activity of surface functionalized group was tested with surface modified carbon nanotubes (CNTs) and found that both materials were amalgamated by chemical bonding. The introduction of functional group on the graphene film surface and its vigorous role to bind CNTs with the present technique could provide an efficient, novel route to device fabrication. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chemical%20vapor%20deposition" title="chemical vapor deposition">chemical vapor deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=graphene%20film" title=" graphene film"> graphene film</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20functionalization" title=" surface functionalization"> surface functionalization</a> </p> <a href="https://publications.waset.org/abstracts/23138/surface-functionalization-of-chemical-vapor-deposition-grown-graphene-film" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23138.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">2751</span> Elaboration and Characterization of CdxZn1-XS Thin Films Deposed by Chemical Bath Deposition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zellagui%20Rahima">Zellagui Rahima</a>, <a href="https://publications.waset.org/abstracts/search?q=Chaumont%20Denis"> Chaumont Denis</a>, <a href="https://publications.waset.org/abstracts/search?q=Boughelout%20Abderrahman"> Boughelout Abderrahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Adnane%20Mohamed"> Adnane Mohamed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Thin films of CdxZn1-xS were deposed by chemical bath deposition on glass substrates for photovoltaic applications. The thin films CdZnS were synthesized by chemical bath (CBD) with different deposition protocols for optimized the parameter of deposition as the temperature, time of deposition, concentrations of ion and pH. Surface morphology, optical and chemical composition properties of thin film CdZnS were investigated by SEM, EDAX, spectrophotometer. The transmittance is 80% in visible region 300 nm – 1000 nm; it has been observed in that films the grain size is between 50nm and 100nm measured by SEM image and we also note that the shape of particle is changing with the change in concentration. This result favors of application these films in solar cells; the chemical analysis with EDAX gives information about the presence of Cd, Zn and S elements and investigates the stoichiometry. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=thin%20film" title="thin film">thin film</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20cells" title=" solar cells"> solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=transmition" title=" transmition"> transmition</a>, <a href="https://publications.waset.org/abstracts/search?q=cdzns" title=" cdzns"> cdzns</a> </p> <a href="https://publications.waset.org/abstracts/60104/elaboration-and-characterization-of-cdxzn1-xs-thin-films-deposed-by-chemical-bath-deposition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60104.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">262</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">2750</span> Evaluation of the Impact of Green Infrastructure on Dispersion and Deposition of Particulate Matter in Near-Roadway Areas</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Deeksha%20Chauhan">Deeksha Chauhan</a>, <a href="https://publications.waset.org/abstracts/search?q=Kamal%20Jain"> Kamal Jain</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Pollutant concentration is high in near-road environments, and vegetation is an effective measure to mitigate urban air quality problems. This paper presents the influence of roadside green infrastructure in dispersion and Deposition of Particulate matter (PM) by the ENVI-met Simulations. Six green infrastructure configurations were specified (i) hedges only, (ii) trees only, (iii) a mix of trees and shrubs (iv) green barrier (v) green wall, and (vi) no tree buffer were placed on both sides of the road. The changes in concentrations at all six scenarios were estimated to identify the best barrier to reduce the dispersion and deposition of PM10 and PM2.5 in an urban environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=barrier" title="barrier">barrier</a>, <a href="https://publications.waset.org/abstracts/search?q=concentration" title=" concentration"> concentration</a>, <a href="https://publications.waset.org/abstracts/search?q=dispersion" title=" dispersion"> dispersion</a>, <a href="https://publications.waset.org/abstracts/search?q=deposition" title=" deposition"> deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=Particulate%20matter" title=" Particulate matter"> Particulate matter</a>, <a href="https://publications.waset.org/abstracts/search?q=pollutant" title=" pollutant"> pollutant</a> </p> <a href="https://publications.waset.org/abstracts/127902/evaluation-of-the-impact-of-green-infrastructure-on-dispersion-and-deposition-of-particulate-matter-in-near-roadway-areas" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/127902.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">146</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">2749</span> Measurement of Liquid Film Thickness in a Vertical Annular Two Phase Flow Changing the Gas-Liquid Density Ratio</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shoji%20Mori">Shoji Mori</a>, <a href="https://publications.waset.org/abstracts/search?q=Kunito%20Okuyama"> Kunito Okuyama</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Annular two phase flow is encountered in many industrial equipments, including flow near nuclear fuel rods in boiling water reactor (BWR). Especially, disturbance waves play important roles in the pressure drop, the generation of entrainments, and the dryout of the liquid film. Therefore, it is important to clarify the behavior of disturbance waves and base film. However, most of the previous studies have been performed under atmospheric pressure conditions that provides the properties of liquid and gas which are significantly different from those of a BWR. Therefore, the effect of properties in gas and liquid on liquid film characteristics should be clarified. In this paper we focus on the effect of gas-liquid density ratio on liquid film thickness characteristics. The experiments have been conducted at four density ratio conditions (ρL/ρG =763, 451, 231, and 31). As a result, it is found that and interfacial shear stress collapse not only tF ave but also tF max and tF min successfully under the same liquid mass flow rate conditions irrespective of ρL/ρG, and moreover a non-dimensional parameter tends to collapse tF max，tF ave，and tF min in the wide range of experimental conditions (ρL/ρG：31～763，We：10～1800，ReL:500 ～ 2200). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=two%20phase%20flow" title="two phase flow">two phase flow</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid%20film" title=" liquid film"> liquid film</a>, <a href="https://publications.waset.org/abstracts/search?q=annular%20flow" title=" annular flow"> annular flow</a>, <a href="https://publications.waset.org/abstracts/search?q=disturbance%20wave" title=" disturbance wave"> disturbance wave</a> </p> <a href="https://publications.waset.org/abstracts/34514/measurement-of-liquid-film-thickness-in-a-vertical-annular-two-phase-flow-changing-the-gas-liquid-density-ratio" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34514.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">389</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2748</span> Adsorption-desorption Behavior of Weak Polyelectrolytes Deposition on Aminolyzed-PLA Non-woven</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sima%20Shakoorjavan">Sima Shakoorjavan</a>, <a href="https://publications.waset.org/abstracts/search?q=Dawid%20Stawski"> Dawid Stawski</a>, <a href="https://publications.waset.org/abstracts/search?q=Somaye%20Akbari"> Somaye Akbari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the adsorption-desorption behavior of poly(amidoamine) (PAMAM) as a polycation and poly (acrylic acid) (PAA) as a polyanion deposited on aminolyzed-PLA nonwoven through layer-by-layer technique (lbl) was studied. The adsorption-desorption behavior was monitored by UV adsorbance spectroscopy and turbidity tests of the waste polyelectrolytes after each deposition. Also, the drying between each deposition step was performed to study the effect of drying on adsorption-desorption behavior. According to UV adsorbance spectroscopy of the waste polyelectrolyte after each deposition, it was revealed that drying has a great effect on the deposition behavior of the next layer. Regarding the deposition of the second layer, drying caused more desorption and removal of the previously deposited layer since the turbidity and the absorbance of the waste increased in comparison to pure polyelectrolyte. To deposit the third layer, the same scenario occurred and drying caused more removal of the previously deposited layer. However, the deposition of the fourth layer drying after the deposition of the third layer did not affect the adsorption-desorption behavior. Since the adsorbance and turbidity of the samples that were dried and those that were not dried were the same. As a result, it seemed that deposition of the fourth layer could be the starting point where lbl reached its constant state. The decrease in adsorbance and remaining turbidity of the waste same as a pure polyelectrolyte can indicate that most portion of the polyelectrolyte was adsorbed onto the substrate rather than complex formation in the bath as the subsequence of the previous layer removal. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adsorption-desorption%20behavior" title="Adsorption-desorption behavior">Adsorption-desorption behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=lbl%20technique" title=" lbl technique"> lbl technique</a>, <a href="https://publications.waset.org/abstracts/search?q=poly%28amidoamine%29" title=" poly(amidoamine)"> poly(amidoamine)</a>, <a href="https://publications.waset.org/abstracts/search?q=poly%20%28acrylic%20acid%29" title=" poly (acrylic acid)"> poly (acrylic acid)</a>, <a href="https://publications.waset.org/abstracts/search?q=weak%20polyelectrolytes" title=" weak polyelectrolytes"> weak polyelectrolytes</a> </p> <a href="https://publications.waset.org/abstracts/176722/adsorption-desorption-behavior-of-weak-polyelectrolytes-deposition-on-aminolyzed-pla-non-woven" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/176722.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">53</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">2747</span> Removal Cobalt (II) and Copper (II) by Solvent Extraction from Sulfate Solutions by Capric Acid in Chloroform</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Bara">A. Bara</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Barkat"> D. Barkat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Liquid-liquid extraction is one of the most useful techniques for selective removal and recovery of metal ions from aqueous solutions, applied in purification processes in numerous chemical and metallurgical industries. In this work, The liquid-liquid extraction of cobalt (II) and copper (II) from aqueous solution by capric acid (HL) in chloroform at 25°C has been studied. Our interest in this paper is to study the effect of concentration of capric acid on the extraction of Co(II) and Cu(II) to see the complexes could be formed in the organic phase using various concentration of capric acid. The extraction of cobalt (II) and copper (II) is extracted as the complex CoL2 (HL )2, CuL2 (HL)2. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=capric%20acid" title="capric acid">capric acid</a>, <a href="https://publications.waset.org/abstracts/search?q=Cobalt%28II%29" title=" Cobalt(II)"> Cobalt(II)</a>, <a href="https://publications.waset.org/abstracts/search?q=copper%28II%29" title=" copper(II)"> copper(II)</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid-liquid%20extraction" title=" liquid-liquid extraction "> liquid-liquid extraction </a> </p> <a href="https://publications.waset.org/abstracts/27656/removal-cobalt-ii-and-copper-ii-by-solvent-extraction-from-sulfate-solutions-by-capric-acid-in-chloroform" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27656.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">441</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2746</span> Direct Bonded Aluminum to Alumina Using a Transient Eutectic Liquid Phase for Power Electronics Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yu-Ting%20Wang">Yu-Ting Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yun-Hsiang%20Cheng"> Yun-Hsiang Cheng</a>, <a href="https://publications.waset.org/abstracts/search?q=Chien-Cheng%20Lin"> Chien-Cheng Lin</a>, <a href="https://publications.waset.org/abstracts/search?q=Kun-Lin%20Lin"> Kun-Lin Lin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Using a transient liquid phase method, Al was successfully bonded with Al₂O₃, which deposited Ni, Cu, Ge, and Si at the surface of the Al₂O₃ substrate after annealing at the relatively low melting point of Al. No reaction interlayer existed at the interface of any Al/Al₂O₃ specimens. Al−Fe intermetallic compounds, such as Al₉Fe₂ and Al₃Fe, formed in the Al substrate because of the precipitation of Fe, which was an impurity of the Al foil, and the reaction with Al at the grain boundaries of Al during annealing processing. According to the evaluation results of mechanical and thermal properties, the Al/Al₂O₃ specimen deposited on the Ni film possessed the highest shear strength, thermal conductivity, and bonding area percentage, followed by the Cu, Ge, and Si films. The properties of the Al/Al₂O₃ specimens deposited with Ge and Si were relatively unsatisfactory, which could be because the deposited amorphous layers easily formed oxide, resulting in inferior adhesion between Al and Al₂O₃. Therefore, the optimal choice for use in high-power devices is Al/Al₂O₃, with the deposition of Ni film. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=direct-bonded%20aluminum" title="direct-bonded aluminum">direct-bonded aluminum</a>, <a href="https://publications.waset.org/abstracts/search?q=transient%20liquid%20phase" title=" transient liquid phase"> transient liquid phase</a>, <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=microstructures" title=" microstructures"> microstructures</a>, <a href="https://publications.waset.org/abstracts/search?q=shear%20strength" title=" shear strength"> shear strength</a> </p> <a href="https://publications.waset.org/abstracts/116949/direct-bonded-aluminum-to-alumina-using-a-transient-eutectic-liquid-phase-for-power-electronics-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/116949.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">158</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">2745</span> Electrical Characteristics of SiON/GaAs MOS Capacitor with Various Passivations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ming-Kwei%20Lee">Ming-Kwei Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Chih-Feng%20Yen"> Chih-Feng Yen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The electrical characteristics of liquid phase deposited silicon oxynitride film on ammonium sulfide treated p-type (100) gallium arsenide substrate were investigated. Hydrofluosilicic acid, ammonia and boric acid aqueous solutions were used as precursors. The electrical characteristics of silicon oxynitride film are much improved on gallium arsenide substrate with ammonium sulfide treatment. With post-metallization annealing, hydrogen ions can further passivate defects in SiON/GaAs film and interface. The leakage currents can reach 7.1 × 10-8 and 1.8 × 10-7 at ± 2 V. The dielectric constant and effective oxide charges are 5.6 and -5.3 × 1010 C/cm2, respectively. The hysteresis offset of hysteresis loop is merely 0.09 V. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=liquid%20phase%20deposition" title="liquid phase deposition">liquid phase deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=SiON" title=" SiON"> SiON</a>, <a href="https://publications.waset.org/abstracts/search?q=GaAs" title=" GaAs"> GaAs</a>, <a href="https://publications.waset.org/abstracts/search?q=PMA" title=" PMA"> PMA</a>, <a href="https://publications.waset.org/abstracts/search?q=%28NH4%292S" title=" (NH4)2S "> (NH4)2S </a> </p> <a href="https://publications.waset.org/abstracts/19612/electrical-characteristics-of-siongaas-mos-capacitor-with-various-passivations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19612.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">643</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">2744</span> Biocompatible Ionic Liquids in Liquid-Liquid Extraction of Lactic Acid: A Comparative Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Konstantza%20Tonova">Konstantza Tonova</a>, <a href="https://publications.waset.org/abstracts/search?q=Ivan%20Svinyarov"> Ivan Svinyarov</a>, <a href="https://publications.waset.org/abstracts/search?q=Milen%20G.%20Bogdanov"> Milen G. Bogdanov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ionic liquids consisting of pairs of imidazolium or phosphonium cation and chloride or saccharinate anion were synthesized and compared with respect to their extraction efficiency towards the fermentative L-lactic acid. The acid partitioning in the equilibrated biphasic systems of ionic liquid and water was quantified through the extraction degree and the partition coefficient. The water transfer from the aqueous into the ionic liquid-rich phase was also always followed. The effect of pH, which determines the state of lactic acid in the aqueous source was studied. The effect of other salting-out substances that modify the ionic liquid/water equilibrium was also investigated in view to reveal the best liquid-liquid system with respect to low toxicity, high extraction and back extraction efficiencies and performance simplicity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ionic%20liquids" title="ionic liquids">ionic liquids</a>, <a href="https://publications.waset.org/abstracts/search?q=biphasic%20system" title=" biphasic system"> biphasic system</a>, <a href="https://publications.waset.org/abstracts/search?q=extraction" title=" extraction"> extraction</a>, <a href="https://publications.waset.org/abstracts/search?q=lactic%20acid" title=" lactic acid"> lactic acid</a> </p> <a href="https://publications.waset.org/abstracts/25539/biocompatible-ionic-liquids-in-liquid-liquid-extraction-of-lactic-acid-a-comparative-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25539.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">481</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2743</span> Experimental Study of Particle Deposition on Leading Edge of Turbine Blade</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yang%20Xiao-Jun">Yang Xiao-Jun</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu%20Tian-Hao"> Yu Tian-Hao</a>, <a href="https://publications.waset.org/abstracts/search?q=Hu%20Ying-Qi"> Hu Ying-Qi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Breathing in foreign objects during the operation of the aircraft engine, impurities in the aircraft fuel and products of incomplete combustion can produce deposits on the surface of the turbine blades. These deposits reduce not only the turbine's operating efficiency but also the life of the turbine blades. Based on the small open wind tunnel, the simulation of deposits on the leading edge of the turbine has been carried out in this work. The effect of film cooling on particulate deposition was investigated. Based on the analysis, the adhesive mechanism for the molten pollutants’ reaching to the turbine surface was simulated by matching the Stokes number, TSP (a dimensionless number characterizing particle phase transition) and Biot number of the test facility and that of the real engine. The thickness distribution and growth trend of the deposits have been observed by high power microscope and infrared camera under different temperature of the main flow, the solidification temperature of the particulate objects, and the blowing ratio. The experimental results from the leading edge particulate deposition demonstrate that the thickness of the deposition increases with time until a quasi-stable thickness is reached, showing a striking effect of the blowing ratio on the deposition. Under different blowing ratios, there exists a large difference in the thickness distribution of the deposition, and the deposition is minimal at the specific blow ratio. In addition, the temperature of main flow and the solidification temperature of the particulate have a great influence on the deposition. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=deposition" title="deposition">deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=experiment" title=" experiment"> experiment</a>, <a href="https://publications.waset.org/abstracts/search?q=film%20cooling" title=" film cooling"> film cooling</a>, <a href="https://publications.waset.org/abstracts/search?q=leading%20edge" title=" leading edge"> leading edge</a>, <a href="https://publications.waset.org/abstracts/search?q=paraffin%20particles" title=" paraffin particles"> paraffin particles</a> </p> <a href="https://publications.waset.org/abstracts/100690/experimental-study-of-particle-deposition-on-leading-edge-of-turbine-blade" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/100690.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">146</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">2742</span> Development of a Smart Liquid Level Controller</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Adamu%20Mudi">Adamu Mudi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20Wahab%20Fawole"> Ibrahim Wahab Fawole</a>, <a href="https://publications.waset.org/abstracts/search?q=Abubakar%20Abba%20Kolo"> Abubakar Abba Kolo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this research paper, we present a microcontroller-based liquid level controller that identifies the various levels of a liquid, carries out certain actions, and is capable of communicating with the human being and other devices through the GSM network. This project is useful in ensuring that a liquid is not wasted. It also contributes to the internet of things paradigm, which is the future of the internet. The method used in this work includes designing the circuit and simulating it. The circuit is then implemented on a solderless breadboard, after which it is implemented on a strip board. A C++ computer program is developed and uploaded into the microcontroller. This program instructs the microcontroller on how to carry out its actions. In other to determine levels of the liquid, an ultrasonic wave is sent to the surface of the liquid similar to radar or the method for detecting the level of sea bed. Message is sent to the phone of the user similar to the way computers send messages to phones of GSM users. It is concluded that the routine of observing the levels of a liquid in a tank, refilling the tank when the liquid level is too low can be entirely handled by a programmable device without wastage of the liquid or bothering a human being with such tasks. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Arduino%20Uno" title="Arduino Uno">Arduino Uno</a>, <a href="https://publications.waset.org/abstracts/search?q=HC-SR04%20ultrasonic%20sensor" title=" HC-SR04 ultrasonic sensor"> HC-SR04 ultrasonic sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=internet%20of%20things" title=" internet of things"> internet of things</a>, <a href="https://publications.waset.org/abstracts/search?q=IoT" title=" IoT"> IoT</a>, <a href="https://publications.waset.org/abstracts/search?q=SIM900%20GSM%20module" title=" SIM900 GSM module"> SIM900 GSM module</a> </p> <a href="https://publications.waset.org/abstracts/125994/development-of-a-smart-liquid-level-controller" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/125994.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">130</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">2741</span> Sustainable Separation of Nicotine from Its Aqueous Solutions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zoran%20Visak">Zoran Visak</a>, <a href="https://publications.waset.org/abstracts/search?q=Joana%20Lopes"> Joana Lopes</a>, <a href="https://publications.waset.org/abstracts/search?q=Vesna%20Najdanovic-Visak"> Vesna Najdanovic-Visak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Within this study, the separation of nicotine from its aqueous solutions, using inorganic salt sodium chloride or ionic liquid (molten salt) ECOENG212® as salting-out media, was carried out. Thus, liquid-liquid equilibria of the ternary solutions (nicotine+water+NaCl) and (nicotine+water+ECOENG212®) were determined at ambient pressure, 0.1 MPa, at three temperatures. The related phase diagrams were constructed in two manners: by adding the determined cloud-points and by the chemical analysis of phases in equilibrium (tie-line data). The latter were used to calculate two important separation parameters - partition coefficients of nicotine and separation factors. The impacts of the initial compositions of the mother solutions and of temperature on the liquid-liquid phase separation and partition coefficients were analyzed and discussed. The results obtained clearly showed that both investigated salts are good salting-out media for the efficient and sustainable separation of nicotine from its solutions with water. However, when compared, sodium chloride exhibited much better separation performance than the ionic liquid. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nicotine" title="nicotine">nicotine</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid-liquid%20separation" title=" liquid-liquid separation"> liquid-liquid separation</a>, <a href="https://publications.waset.org/abstracts/search?q=inorganic%20salt" title=" inorganic salt"> inorganic salt</a>, <a href="https://publications.waset.org/abstracts/search?q=ionic%20liquid" title=" ionic liquid"> ionic liquid</a> </p> <a href="https://publications.waset.org/abstracts/58412/sustainable-separation-of-nicotine-from-its-aqueous-solutions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58412.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">311</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2740</span> Perceptions of Farmers against Liquid Fertilizer Benefits of Beef Cattle Urine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sitti%20Nurani%20Sirajuddin">Sitti Nurani Sirajuddin</a>, <a href="https://publications.waset.org/abstracts/search?q=Ikrar%20Moh.%20Saleh"> Ikrar Moh. Saleh</a>, <a href="https://publications.waset.org/abstracts/search?q=Kasmiyati%20Kasim"> Kasmiyati Kasim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this study was to know the perception of livestock farmers on the use of liquid organic fertilizer from urine of cattle at Sinjai Regency, South Sulawesi Province. The choice of location for a farmer group manufactures and markets liquid organic fertilizer from cattle urine. This research was conducted in May to July 2013.The population were all livestock farmers who use organic liquid fertilizer from cattle urine samples while livestock farmers who are directly involved in the manufacture of liquid organic fertilizer totaled 42 people. Data were collected through observation and interview. Data were analyzed descriptively. The results showed that the perception of livestock farmers of using liquid organic fertilizer from cattle urine provide additional revenue benefits, cost minimization farming, reducing environmental pollution which not contrary to the customs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=liquid%20organic%20fertilizer" title="liquid organic fertilizer">liquid organic fertilizer</a>, <a href="https://publications.waset.org/abstracts/search?q=perceptions" title=" perceptions"> perceptions</a>, <a href="https://publications.waset.org/abstracts/search?q=farmers" title=" farmers"> farmers</a>, <a href="https://publications.waset.org/abstracts/search?q=beef%20cattle" title=" beef cattle"> beef cattle</a> </p> <a href="https://publications.waset.org/abstracts/34105/perceptions-of-farmers-against-liquid-fertilizer-benefits-of-beef-cattle-urine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34105.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">473</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">2739</span> Sensitive Detection of Nano-Scale Vibrations by the Metal-Coated Fiber Tip at the Liquid-Air Interface</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20J.%20Babajanyan">A. J. Babajanyan</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20A.%20Abrahamyan"> T. A. Abrahamyan</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20A.%20Minasyan"> H. A. Minasyan</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20V.%20Nerkararyan"> K. V. Nerkararyan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Optical radiation emitted from a metal-coated fiber tip apex at liquid-air interface was measured. The intensity of the output radiation was strongly depending on the relative position of the tip to a liquid-air interface and varied with surface fluctuations. This phenomenon permits in-situ real-time investigation of nano-metric vibrations of the liquid surface and provides a basis for development of various origin ultrasensitive vibration detecting sensors. The described method can be used for detection of week seismic vibrations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fiber-tip" title="fiber-tip">fiber-tip</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid-air%20interface" title=" liquid-air interface"> liquid-air interface</a>, <a href="https://publications.waset.org/abstracts/search?q=nano%20vibration" title=" nano vibration"> nano vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=opto-mechanical%20sensor" title=" opto-mechanical sensor"> opto-mechanical sensor</a> </p> <a href="https://publications.waset.org/abstracts/28296/sensitive-detection-of-nano-scale-vibrations-by-the-metal-coated-fiber-tip-at-the-liquid-air-interface" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28296.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">484</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">2738</span> Quantification of Size Segregated Particulate Matter Deposition in Human Respiratory Tract and Health Risk to Residents of Glass City</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kalpana%20Rajouriya">Kalpana Rajouriya</a>, <a href="https://publications.waset.org/abstracts/search?q=Ajay%20Taneja"> Ajay Taneja</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of the present study is to investigate the regional and lobar deposition of size-segregated PM in respiratory tract of human body. PM in different fractions is monitored using the Grimm portable environmental dust monitor during winter season in Firozabad; a Glass city of India. PM10 concentration (200.817g/m³) was 4.46 and 2.0 times higher than the limits prescribed by WHO (45g/m⁻³) and NAAQS (100g/m⁻³) government agencies. PM2.5 concentration (83.538 g/m3) was 5.56 and 1.39 times higher from WHO (15g/m-3) and NAAQS (60g/m⁻³) limits. Results inferred that PM10 and PM2.5 was highest deposited in head region (0.3477-0.5622 & 0.366-0.4704) followed by pulmonary region, especially in the 9-21year old persons. The variation in deposition percentage in our study is mainly due to the airway geometry, PM size, and its deposition mechanisms. The coarse fraction, due to its large size, cannot follow the airway path and mostly gets deposited by inertial impaction in the head region and its bifurcations. The present study results inferred that Coarse and fine PM deposition was highly visualized in 9 (8.45610⁻⁴ g, 2.91110⁻⁴g) year and 3 (1.49610⁻⁴ g, 8.59310⁻⁵g) month age category. So, the 9year children and 3month infants category have high level of health risk. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=particulate%20matter" title="particulate matter">particulate matter</a>, <a href="https://publications.waset.org/abstracts/search?q=MPPD%20model" title=" MPPD model"> MPPD model</a>, <a href="https://publications.waset.org/abstracts/search?q=regional%20deposition" title=" regional deposition"> regional deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=lobar%20deposition" title=" lobar deposition"> lobar deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=health%20risk" title=" health risk"> health risk</a> </p> <a href="https://publications.waset.org/abstracts/171925/quantification-of-size-segregated-particulate-matter-deposition-in-human-respiratory-tract-and-health-risk-to-residents-of-glass-city" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/171925.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">61</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">2737</span> Predicting of Hydrate Deposition in Loading and Offloading Flowlines of Marine CNG Systems </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Esam%20I.%20Jassim">Esam I. Jassim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main aim of this paper is to demonstrate the prediction of the model capability of predicting the nucleation process, the growth rate, and the deposition potential of second phase particles in gas flowlines. The primary objective of the research is to predict the risk hazards involved in the marine transportation of compressed natural gas. However, the proposed model can be equally used for other applications including production and transportation of natural gas in any high-pressure flow-line. The proposed model employs the following three main components to approach the problem: computational fluid dynamics (CFD) technique is used to configure the flow field; the nucleation model is developed and incorporated in the simulation to predict the incipient hydrate particles size and growth rate; and the deposition of the gas/particle flow is proposed using the concept of the particle deposition velocity. These components are integrated in a comprehended model to locate the hydrate deposition in natural gas flowlines. The present research is prepared to foresee the deposition location of solid particles that could occur in a real application in Compressed Natural Gas loading and offloading. A pipeline with 120 m length and different sizes carried a natural gas is taken in the study. The location of particle deposition formed as a result of restriction is determined based on the procedure mentioned earlier and the effect of water content and downstream pressure is studied. The critical flow speed that prevents such particle to accumulate in the certain pipe length is also addressed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hydrate%20deposition" title="hydrate deposition">hydrate deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=compressed%20natural%20gas" title=" compressed natural gas"> compressed natural gas</a>, <a href="https://publications.waset.org/abstracts/search?q=marine%20transportation" title=" marine transportation"> marine transportation</a>, <a href="https://publications.waset.org/abstracts/search?q=oceanography" title=" oceanography"> oceanography</a> </p> <a href="https://publications.waset.org/abstracts/15365/predicting-of-hydrate-deposition-in-loading-and-offloading-flowlines-of-marine-cng-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15365.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">487</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">2736</span> Potentiostatic Electrodeposition of Cu₂O Films as P-Type Electrode at Room Temperature</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20M.%20Moharam">M. M. Moharam</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20M.%20Elsayed"> E. M. Elsayed</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20M.%20Rashad"> M. M. Rashad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Single phase Cu₂O films have been prepared via an electrodeposition technique onto ITO glass substrates at room temperature. Likewise, Cu₂O films were deposited using a potentiostatic process from an alkaline electrolyte containing copper (II) nitrate and 1M sodium citrate. Single phase Cu₂O films were electrodeposited at a cathodic deposition potential of 500mV for a reaction period of 90 min, and pH of 12 to yield a film thickness of 0.49 µm. The mechanism for nucleation of Cu₂O films was found to vary with deposition potential. Applying the Scharifker and Hills model at -500 and -600 mV to describe the mechanism of nucleation for the electrochemical reaction, the nucleation mechanism consisted of a mix between instantaneous and progressive growth mechanisms at -500 mV, while above -600 mV the growth mechanism was instantaneous. Using deposition times from 30 to 90 min at -500 mV deposition potential, pure Cu2O films with different microstructures were electrodeposited. Changing the deposition time from 30 to 90 min varied the microstructure from cubic to more complex polyhedra. The transmittance of electrodeposited Cu₂O films ranged from 20-70% in visible range, and samples exhibited a 2.4 eV band gap. The electrical resistivity for electrodeposited Cu₂O films was found to decrease with increasing deposition time from 0.854 x 105 Ω-cm at 30 min to 0.221 x 105 Ω-cm at 90 min without any thermal treatment following the electrodeposition process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cu%E2%82%82O" title="Cu₂O">Cu₂O</a>, <a href="https://publications.waset.org/abstracts/search?q=electrodeposition" title=" electrodeposition"> electrodeposition</a>, <a href="https://publications.waset.org/abstracts/search?q=film%20thickness" title=" film thickness"> film thickness</a>, <a href="https://publications.waset.org/abstracts/search?q=characterization" title=" characterization"> characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=optical%20properties" title=" optical properties"> optical properties</a> </p> <a href="https://publications.waset.org/abstracts/57827/potentiostatic-electrodeposition-of-cu2o-films-as-p-type-electrode-at-room-temperature" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57827.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">212</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">2735</span> Effect of the Deposition Time of Hydrogenated Nanocrystalline Si Grown on Porous Alumina Film on Glass Substrate by Plasma Processing Chemical Vapor Deposition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=F.%20Laatar">F. Laatar</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Ktifa"> S. Ktifa</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Ezzaouia"> H. Ezzaouia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Plasma Enhanced Chemical Vapor Deposition (PECVD) method is used to deposit hydrogenated nanocrystalline silicon films (nc-Si: H) on Porous Anodic Alumina Films (PAF) on glass substrate at different deposition duration. Influence of the deposition time on the physical properties of nc-Si: H grown on PAF was investigated through an extensive correlation between micro-structural and optical properties of these films. In this paper, we present an extensive study of the morphological, structural and optical properties of these films by Atomic Force Microscopy (AFM), X-Ray Diffraction (XRD) techniques and a UV-Vis-NIR spectrometer. It was found that the changes in DT can modify the films thickness, the surface roughness and eventually improve the optical properties of the composite. Optical properties (optical thicknesses, refractive indexes (n), absorption coefficients (α), extinction coefficients (k), and the values of the optical transitions EG) of this kind of samples were obtained using the data of the transmittance T and reflectance R spectra’s recorded by the UV–Vis–NIR spectrometer. We used Cauchy and Wemple–DiDomenico models for the analysis of the dispersion of the refractive index and the determination of the optical properties of these films. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hydragenated%20nanocrystalline%20silicon" title="hydragenated nanocrystalline silicon">hydragenated nanocrystalline silicon</a>, <a href="https://publications.waset.org/abstracts/search?q=plasma%20processing%20chemical%20vapor%20deposition" title=" plasma processing chemical vapor deposition"> plasma processing chemical vapor deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=X-ray%20diffraction" title=" X-ray diffraction"> X-ray diffraction</a>, <a href="https://publications.waset.org/abstracts/search?q=optical%20properties" title=" optical properties"> optical properties</a> </p> <a href="https://publications.waset.org/abstracts/6992/effect-of-the-deposition-time-of-hydrogenated-nanocrystalline-si-grown-on-porous-alumina-film-on-glass-substrate-by-plasma-processing-chemical-vapor-deposition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6992.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">377</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=deposition%20of%20liquid&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=deposition%20of%20liquid&page=3">3</a></li> <li class="page-item"><a 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