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spraying</title> <meta name="description" content="Search results for: arc spraying"> <meta name="keywords" content="arc spraying"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="arc spraying"> <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> 119</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: arc spraying</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">119</span> Diesel Engine Performance Optimization to Reduce Fuel Consumption and Emissions Issues</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=hadi%20kargar">hadi kargar</a>, <a href="https://publications.waset.org/abstracts/search?q=bahador%20shabani"> bahador shabani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this article, 16 cylinder motor combustion CFD modeling with a diameter of 165 mm and 195 mm along the way to help the FIRE software to optimize its function to work. A three-dimensional model of the processes that formed inside the cylinder made that involves mixing the fuel and air, ignition and spraying. In this three-dimensional model, all chemical species, density of air fuel spraying and spray with full profile intended to detailed results from mixing the fuel and air, igniting the ignition advance, spray, and mixed media in different times and get fit by moving the piston. Optimal selection of the model for the shape of the piston and spraying fuel specifications (including the management of spraying, the number of azhneh hole, start time of spraying and spraying angle) to achieve the best fuel consumption and minimal pollution. The spray hole 6 and 7 in three different configurations with five spraying and gives the best geometry and various performances in the simulation. 6 hole spray angle, finally spraying 72.5 degrees and two forms of spraying a better performance in comparison with other items of their own. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=spray" title="spray">spray</a>, <a href="https://publications.waset.org/abstracts/search?q=FIRE" title=" FIRE"> FIRE</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=optimize" title=" optimize"> optimize</a>, <a href="https://publications.waset.org/abstracts/search?q=diesel%20engine" title=" diesel engine"> diesel engine</a> </p> <a href="https://publications.waset.org/abstracts/37992/diesel-engine-performance-optimization-to-reduce-fuel-consumption-and-emissions-issues" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37992.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">419</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">118</span> Hemp Defoliation Technology and Management before Harvesting</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rataya%20Yanaphan">Rataya Yanaphan</a>, <a href="https://publications.waset.org/abstracts/search?q=Saksiri%20Kuppatarat"> Saksiri Kuppatarat</a>, <a href="https://publications.waset.org/abstracts/search?q=Sarita%20Pinmanee"> Sarita Pinmanee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Hemp (Cannabis sativa L. ssp. Sativa) cultivation for fiber is limited by extremely high labor cost, especially for the removal of the leaves before harvest. This study evaluated chemical defoliants as a means to remove the leaves of hemp before harvest, in an effort to reduce labor expenditures in the production on hemp fiber. This study was conducted by spraying the leaves of hemp with five different treatments: saline solution, Urea (CH4N2O), Ethephon, copper Sulphate (CuSO4) and water (control) before harvesting. The largest percentage of leaf loss 6 days after spraying was with saline solution (43%), followed by Ethephon (32%). However, saline solution also caused drying of the stems but Ethephon did not. Thus, Ethephon was evaluated in the second experiment by spraying with Ethephon concentrations of 0, 10, 15 and 20 ml per 1 liter of water at 7 days before harvest. Spraying with 0.5% Ethephon resulted in 13.6% leaf fall. Spraying with 1.5% and 2% Ethephon resulted in 82.2% and 82.3 % leaf fall, respectively. In addition, using Ethephon to defoliate hemp had no detrimental effect the yield. Therefore, Ethephon concentration at 15 ml per 1 liter of water will be recommended for use in removing hemp leaves by spraying at 7 days before harvest to lower labor cost. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=defoliation%20technology" title="defoliation technology">defoliation technology</a>, <a href="https://publications.waset.org/abstracts/search?q=ethephon" title=" ethephon"> ethephon</a>, <a href="https://publications.waset.org/abstracts/search?q=hemp%20cultivation" title=" hemp cultivation"> hemp cultivation</a>, <a href="https://publications.waset.org/abstracts/search?q=saline%20solution" title=" saline solution"> saline solution</a> </p> <a href="https://publications.waset.org/abstracts/52525/hemp-defoliation-technology-and-management-before-harvesting" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52525.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> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">117</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">335</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">116</span> Thermal Spraying of Titanium-Based Alloys on Steel and Aluminum Substrates</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ionut%20Claudiu%20Roata">Ionut Claudiu Roata</a>, <a href="https://publications.waset.org/abstracts/search?q=Catalin%20Croitoru"> Catalin Croitoru</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Thermal spraying emerges as a versatile and robust technique for enhancing construction steel with protective coatings tailored for anti-corrosion, insulation, and aesthetics. This study showcases the successful application of flame thermal sprayed titanium-based coatings on EN-S273JR steel substrates and on aluminum. Optimizing the process at a 150 mm spray distance and employing argon as a carrier gas, we achieved coatings with characteristic morphologies and a minimal amount of oxides presence at particle boundaries. Corrosion tests in 3.5% wt. NaCl solution confirmed the coatings’ superior performance, displaying an improved corrosion resistance increase over uncoated steel or aluminum. These results underscore the efficacy of thermal spraying in significantly bolstering the durability of construction steel and aluminum, marking it as a pivotal technique for multifunctional coating applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=thermal%20spraying" title="thermal spraying">thermal spraying</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20resistance" title=" corrosion resistance"> corrosion resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20properties" title=" surface properties"> surface properties</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20properties" title=" mechanical properties"> mechanical properties</a> </p> <a href="https://publications.waset.org/abstracts/192238/thermal-spraying-of-titanium-based-alloys-on-steel-and-aluminum-substrates" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/192238.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">22</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">115</span> Determination of Biological Efficiency Values of Some Pesticide Application Methods under Second Crop Maize Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ali%20Bolat">Ali Bolat</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Bayat"> Ali Bayat</a>, <a href="https://publications.waset.org/abstracts/search?q=Mustafa%20Gullu"> Mustafa Gullu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Maize can be cultivated both under main and second crop conditions in Turkey. Main pests of maize under second crop conditions are Sesamia nonagrioides Lefebvre (Lepidoptera: Noctuidae) and Ostrinia nubilalis Hübner (Lepidoptera: Crambidae). Aerial spraying applications to control these two main maize pests can be carried out until 2006 in Turkey before it was banned due to environmental concerns like drifting of sprayed pestisides and low biological efficiency. In this context, pulverizers which can spray tall maize plants ( > 175 cm) from the ground have begun to be used. However, the biological efficiency of these sprayers is unknown. Some methods have been tested to increase the success of ground spraying in field experiments conducted in second crop maize in 2008 and 2009. For this aim, 6 spraying methods (air assisted spraying with TX cone jet, domestic cone nozzles, twinjet nozzles, air induction nozzles, standard domestic cone nozzles and tail booms) were used at two application rates (150 and 300 l.ha-1) by a sprayer. In the study, biological efficacy evaluations of each methods were measured in each parcel. Biological efficacy evaluations included counts of number of insect damaged plants, number of holes in stems and live larvae and pupa in stems of selected plants. As a result, the highest biological efficacy value (close to 70%) was obtained from Air Assisted Spraying method at 300 l / ha application volume. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=air%20assisted%20sprayer" title="air assisted sprayer">air assisted sprayer</a>, <a href="https://publications.waset.org/abstracts/search?q=drift%20nozzles" title=" drift nozzles"> drift nozzles</a>, <a href="https://publications.waset.org/abstracts/search?q=biological%20efficiency" title=" biological efficiency"> biological efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=maize%20plant" title=" maize plant"> maize plant</a> </p> <a href="https://publications.waset.org/abstracts/79987/determination-of-biological-efficiency-values-of-some-pesticide-application-methods-under-second-crop-maize-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/79987.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">213</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">114</span> Performance of Different Spray Nozzles in the Application of Defoliant on Cotton Plants (Gossypium hirsutum L.)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamud%20Ali%20Ibrahim">Mohamud Ali Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Bayat"> Ali Bayat</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Bolat"> Ali Bolat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Defoliant spraying is an important link in the mechanized cotton harvest because adequate and uniform spraying can improve defoliation quality and reduce cotton trash content. In defoliant application, application volume and spraying technology are extremely important. In this study, the effectiveness of defoliant application to cotton plant that has come to harvest with two different application volumes and three different types of nozzles with a standard field crop sprayer was determined. Experiments were carried in two phases as field area trials and laboratory analysis. Application rates were 250 l/ha and 400 L/ha, and spraying nozzles were (1) Standard flat fan nozzle (TP8006), (2) Air induction nozzle (AI 11002-VS), and (3) Dual Pattern nozzle (AI307003VP). A tracer (BSF) and defoliant were applied to mature cotton with approximately 60% open bolls and samplings for BSF deposition and spray coverage on the cotton plant were done at two plant height (upper layer, lower layer) of plant. Before and after spraying, bolls open and leaves rate on cotton plants were calculated, and filter papers were used to detect BSF deposition, and water sensitive papers (WSP) were used to measure the coverage rate of spraying methods used. Spectrofluorophotometer was used to detect the amount of tracer deposition on targets, and an image process computer programme was used to measure coverage rate on WSP. In analysis, conclusions showed that air induction nozzle (AI 11002-VS) achieved better results than the dual pattern and standard flat fan nozzles in terms of higher depositions, coverages, and leaf defoliations, and boll opening rates. AI nozzles operating at 250 L/ha application rate provide the highest deposition and coverage rate on applications of the defoliant; in addition, BSF as an indicator of the defoliant used reached on leaf beneath in merely this spray nozzle. After defoliation boll opening rate was 85% on the 7th and 12th days after spraying and falling rate of leaves was 76% at application rate of 250 L/ha with air induction (AI1102) nozzle. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cotton%20defoliant" title="cotton defoliant">cotton defoliant</a>, <a href="https://publications.waset.org/abstracts/search?q=air%20induction%20nozzle" title=" air induction nozzle"> air induction nozzle</a>, <a href="https://publications.waset.org/abstracts/search?q=dual%20pattern%20nozzle" title=" dual pattern nozzle"> dual pattern nozzle</a>, <a href="https://publications.waset.org/abstracts/search?q=standard%20flat%20fan%20nozzle" title=" standard flat fan nozzle"> standard flat fan nozzle</a>, <a href="https://publications.waset.org/abstracts/search?q=coverage%20rate" title=" coverage rate"> coverage rate</a>, <a href="https://publications.waset.org/abstracts/search?q=spray%20deposition" title=" spray deposition"> spray deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=boll%20opening%20rate" title=" boll opening rate"> boll opening rate</a>, <a href="https://publications.waset.org/abstracts/search?q=leaves%20falling%20rate" title=" leaves falling rate"> leaves falling rate</a> </p> <a href="https://publications.waset.org/abstracts/141813/performance-of-different-spray-nozzles-in-the-application-of-defoliant-on-cotton-plants-gossypium-hirsutum-l" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/141813.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">198</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">113</span> Production of Metal Powder Using Twin Arc Spraying Process for Additive Manufacturing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=D.%20Chen">D. Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Daoud"> H. Daoud</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Kreiner"> C. Kreiner</a>, <a href="https://publications.waset.org/abstracts/search?q=U.%20Glatzel"> U. Glatzel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Additive Manufacturing (AM) provides promising opportunities to optimize and to produce tooling by integrating near-contour tempering channels for more efficient cooling. To enhance the properties of the produced tooling using additive manufacturing, prototypes should be produced in short periods. Thereby, this requires a small amount of tailored powders, which either has a high production cost or is commercially unavailable. Hence, in this study, an arc spray atomization approach to produce a tailored metal powder at a lower cost and even in small quantities, in comparison to the conventional powder production methods, was proposed. This approach involves converting commercially available metal wire into powder by modifying the wire arc spraying process. The influences of spray medium and gas pressure on the powder properties were investigated. As a result, particles with smooth surface and lower porosity were obtained, when nonoxidizing gases are used for thermal spraying. The particle size decreased with increasing of the gas pressure, and the particles sizes are in the range from 10 to 70 µm, which is desirable for selective laser melting (SLM). A comparison of microstructure and mechanical behavior of SLM generated parts using arc sprayed powders (alloy: X5CrNiCuNb 16-4) and commercial powder (alloy: X5CrNiCuNb 16-4) was also conducted. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=additive%20manufacturing" title="additive manufacturing">additive manufacturing</a>, <a href="https://publications.waset.org/abstracts/search?q=arc%20spraying" title=" arc spraying"> arc spraying</a>, <a href="https://publications.waset.org/abstracts/search?q=powder%20production" title=" powder production"> powder production</a>, <a href="https://publications.waset.org/abstracts/search?q=selective%20laser%20melting" title=" selective laser melting"> selective laser melting</a> </p> <a href="https://publications.waset.org/abstracts/104457/production-of-metal-powder-using-twin-arc-spraying-process-for-additive-manufacturing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104457.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">138</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">112</span> The Effect of Particle Temperature on the Thickness of Thermally Sprayed Coatings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Jalali%20Azizpour">M. Jalali Azizpour</a>, <a href="https://publications.waset.org/abstracts/search?q=H.Mohammadi%20Majd"> H.Mohammadi Majd </a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the effect of WC-12Co particle Temperature in HVOF thermal spraying process on the coating thickness has been studied. The statistical results show that the spray distance and oxygen-to-fuel ratio are more effective factors on particle characterization and thickness of HVOF thermal spraying coatings. Spray Watch diagnostic system, scanning electron microscopy (SEM), X-ray diffraction and thickness measuring system were used for this purpose. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=HVOF" title="HVOF">HVOF</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature" title=" temperature"> temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=thickness" title=" thickness"> thickness</a>, <a href="https://publications.waset.org/abstracts/search?q=velocity" title=" velocity"> velocity</a>, <a href="https://publications.waset.org/abstracts/search?q=WC-12Co" title=" WC-12Co "> WC-12Co </a> </p> <a href="https://publications.waset.org/abstracts/15001/the-effect-of-particle-temperature-on-the-thickness-of-thermally-sprayed-coatings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15001.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">403</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">111</span> Wear Behavior of Intermetallic (Ni3Al) Coating at High Temperature </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20Mehmood">K. Mehmood</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Asif%20Rafiq"> Muhammad Asif Rafiq</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Nasir%20Khan"> A. Nasir Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Mudassar%20Rauf"> M. Mudassar Rauf</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Air plasma spraying system was utilized to deposit Ni3Al coatings on AISI 321 steel samples. After thermal spraying, the nickel aluminide intermetallic coatings were isothermal heat treated at various temperatures. In this regard, temperatures from 500 °C to 800 °C with 100 °C increments were selected. The coatings were soaked for 10, 30, 60 and 100 hours at the mentioned temperatures. These coatings were then tested by a pin on disk method. It was observed that the coatings exposed at comparatively higher temperature experienced lower wear rate. The decrease in wear rate is due to the formation of NiO phase. Further, the as sprayed and heat treated coatings were characterized by other tools such as Microhardness testing, optical and scanning electron microscopy (SEM) and X-Ray diffraction analysis. After isothermal heat treatment, NiO was observed the main phase by X-Ray diffraction technique. Moreover, the surface hardness was also determined higher than cross sectional hardness. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=air%20plasma%20spraying" title="air plasma spraying">air plasma spraying</a>, <a href="https://publications.waset.org/abstracts/search?q=Ni%20-20Al" title=" Ni -20Al"> Ni -20Al</a>, <a href="https://publications.waset.org/abstracts/search?q=tribometer" title=" tribometer"> tribometer</a>, <a href="https://publications.waset.org/abstracts/search?q=intermetallic%20coating" title=" intermetallic coating"> intermetallic coating</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel%20aluminide" title=" nickel aluminide "> nickel aluminide </a> </p> <a href="https://publications.waset.org/abstracts/35455/wear-behavior-of-intermetallic-ni3al-coating-at-high-temperature" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35455.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">329</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">110</span> The Effect of Impinging WC-12Co Particles Temperature on Thickness of HVOF Thermally Sprayed Coatings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Jalali%20Azizpour">M. Jalali Azizpour </a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the effect of WC-12Co particle Temperature in HVOF thermal spraying process on the coating thickness has been studied. The statistical results show that the spray distance and oxygen-to-fuel ratio are more effective factors on particle characterization and thickness of HVOF thermal spraying coatings. Spray Watch diagnostic system, scanning electron microscopy (SEM), X-ray diffraction and thickness measuring system were used for this purpose. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=HVOF" title="HVOF">HVOF</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature%20thickness" title=" temperature thickness"> temperature thickness</a>, <a href="https://publications.waset.org/abstracts/search?q=velocity" title=" velocity"> velocity</a>, <a href="https://publications.waset.org/abstracts/search?q=WC-12Co" title=" WC-12Co "> WC-12Co </a> </p> <a href="https://publications.waset.org/abstracts/6744/the-effect-of-impinging-wc-12co-particles-temperature-on-thickness-of-hvof-thermally-sprayed-coatings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6744.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">241</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">109</span> Alternative Coating Compositions by Thermal Arc Spraying to Improve the Contact Heat Treatment in Press Hardening</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Philipp%20Burger">Philipp Burger</a>, <a href="https://publications.waset.org/abstracts/search?q=Jonas%20Sommer"> Jonas Sommer</a>, <a href="https://publications.waset.org/abstracts/search?q=Haneen%20Daoud"> Haneen Daoud</a>, <a href="https://publications.waset.org/abstracts/search?q=Franz%20Hilmer"> Franz Hilmer</a>, <a href="https://publications.waset.org/abstracts/search?q=Uwe%20Glatzel"> Uwe Glatzel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Press-hardened structural components made of coated high-strength steel are an essential part of the automotive industry when it comes to weight reduction, safety, and durability. Alternative heat treatment processes, such as contact heating, have been developed to improve the efficiency of this process. However, contact heating of the steel sheets often results in cracking within the Al-Si-coated layer. Therefore, this paper will address the development of alternative coating compositions based on Al-Si-X, suitable for contact heating. For this purpose, robot-assisted thermal arc spray was applied to coat the high-strength steel sheets. This ensured high reproducibility as well as effectiveness. The influence of the coating parameters and the variation of the nozzle geometry on the microstructure of the developed coatings will be discussed. Finally, the surface and mechanical properties after contact heating and press hardening will be presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=press%20hardening" title="press hardening">press hardening</a>, <a href="https://publications.waset.org/abstracts/search?q=hot%20stamping" title=" hot stamping"> hot stamping</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20spraying" title=" thermal spraying"> thermal spraying</a>, <a href="https://publications.waset.org/abstracts/search?q=arc%20spraying" title=" arc spraying"> arc spraying</a>, <a href="https://publications.waset.org/abstracts/search?q=coating%20compositions" title=" coating compositions"> coating compositions</a> </p> <a href="https://publications.waset.org/abstracts/159998/alternative-coating-compositions-by-thermal-arc-spraying-to-improve-the-contact-heat-treatment-in-press-hardening" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/159998.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">94</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">108</span> Shotcrete Performance Optimisation and Audit Using 3D Laser Scanning</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Carlos%20Gonzalez">Carlos Gonzalez</a>, <a href="https://publications.waset.org/abstracts/search?q=Neil%20Slatcher"> Neil Slatcher</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcus%20%20Properzi"> Marcus Properzi</a>, <a href="https://publications.waset.org/abstracts/search?q=Kan%20Seah"> Kan Seah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In many underground mining operations, shotcrete is used for permanent rock support. Shotcrete thickness is a critical measure of the success of this process. 3D Laser Mapping, in conjunction with Jetcrete, has developed a 3D laser scanning system specifically for measuring the thickness of shotcrete. The system is mounted on the shotcrete spraying machine and measures the rock faces before and after spraying. The calculated difference between the two 3D surface models is measured as the thickness of the sprayed concrete. Typical work patterns for the shotcrete process required a rapid and automatic system. The scanning takes place immediately before and after the application of the shotcrete so no convergence takes place in the interval between scans. Automatic alignment of scans without targets was implemented which allows for the possibility of movement of the spraying machine between scans. Case studies are presented where accuracy tests are undertaken and automatic audit reports are calculated. The use of 3D imaging data for the calculation of shotcrete thickness is an important tool for geotechnical engineers and contract managers, and this could become the new state-of-the-art methodology for the mining industry. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=3D%20imaging" title="3D imaging">3D imaging</a>, <a href="https://publications.waset.org/abstracts/search?q=shotcrete" title=" shotcrete"> shotcrete</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20model" title=" surface model"> surface model</a>, <a href="https://publications.waset.org/abstracts/search?q=tunnel%20stability" title=" tunnel stability"> tunnel stability</a> </p> <a href="https://publications.waset.org/abstracts/84408/shotcrete-performance-optimisation-and-audit-using-3d-laser-scanning" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84408.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">290</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">107</span> The Effect of Filter Cake Powder on Soil Stability Enhancement in Active Sand Dunes, In the Long and Short Term</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Irit%20Rutman%20Halili">Irit Rutman Halili</a>, <a href="https://publications.waset.org/abstracts/search?q=Tehila%20Zvulun"> Tehila Zvulun</a>, <a href="https://publications.waset.org/abstracts/search?q=Natali%20%20Elgabsi"> Natali Elgabsi</a>, <a href="https://publications.waset.org/abstracts/search?q=Revaya%20Cohen"> Revaya Cohen</a>, <a href="https://publications.waset.org/abstracts/search?q=Shlomo%20Sarig"> Shlomo Sarig</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Active sand dunes (ASD) may cause significant damage to field crops and livelihood, and therefore, it is necessary to find a treatment that would enhance ADS soil stability. Biological soil crusts (biocrusts) contain microorganisms on the soil surface. Metabolic polysaccharides secreted by biocrust cyanobacteria glue the soil particles into aggregates, thereby stabilizing the soil surface. Filter cake powder (FCP) is a waste by-product in the final stages of the production of sugar from sugarcane, and its disposal causes significant environmental pollution. FCP contains high concentrations of polysaccharides and has recently been shown to be soil stability enhancing agent in ASD. It has been reported that adding FCP to the ASD soil surface by dispersal significantly increases the level of penetration resistance of soil biocrust (PRSB) nine weeks after a single treatment. However, it was not known whether a similar effect could be obtained by administering the FCP in liquid form by means of spraying. It has now been found that spraying a water solution of FCP onto the ASD soil surface significantly increased the level of penetration resistance of soil biocrust (PRSB) three weeks after a single treatment. These results suggest that FCP spraying can be used as a short-term soil stability-enhancing agent for ASD, while administration by dispersal might be more efficient over the long term. Finally, an additional benefit of using FCP as a soil stabilizer, either by dispersal or by spraying, is the reduction in environmental pollution that would otherwise result from the disposal of FCP solid waste. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=active%20sand%20dunes" title="active sand dunes">active sand dunes</a>, <a href="https://publications.waset.org/abstracts/search?q=filter%20cake%20powder" title=" filter cake powder"> filter cake powder</a>, <a href="https://publications.waset.org/abstracts/search?q=biological%20soil%20crusts" title=" biological soil crusts"> biological soil crusts</a>, <a href="https://publications.waset.org/abstracts/search?q=penetration%20resistance%20of%20soil%20biocrust" title=" penetration resistance of soil biocrust"> penetration resistance of soil biocrust</a> </p> <a href="https://publications.waset.org/abstracts/131395/the-effect-of-filter-cake-powder-on-soil-stability-enhancement-in-active-sand-dunes-in-the-long-and-short-term" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/131395.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">164</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">106</span> Determining Water Quantity from Sprayer Nozzle Using Particle Image Velocimetry (PIV) and Image Processing Techniques</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Nadeem">M. Nadeem</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20K.%20Chang"> Y. K. Chang</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Diallo"> C. Diallo</a>, <a href="https://publications.waset.org/abstracts/search?q=U.%20Venkatadri"> U. Venkatadri</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Havard"> P. Havard</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Nguyen-Quang"> T. Nguyen-Quang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Uniform distribution of agro-chemicals is highly important because there is a significant loss of agro-chemicals, for example from pesticide, during spraying due to non-uniformity of droplet and off-target drift. Improving the efficiency of spray pattern for different cropping systems would reduce energy, costs and to minimize environmental pollution. In this paper, we examine the water jet patterns in order to study the performance and uniformity of water distribution during the spraying process. We present a method to quantify the water amount from a sprayer jet by using the Particle Image Velocimetry (PIV) system. The results of the study will be used to optimize sprayer or nozzles design for chemical application. For this study, ten sets of images were acquired by using the following PIV system settings: double frame mode, trigger rate is 4 Hz, and time between pulsed signals is 500 µs. Each set of images contained different numbers of double-framed images: 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100 at eight different pressures 25, 50, 75, 100, 125, 150, 175 and 200 kPa. The PIV images obtained were analysed using custom-made image processing software for droplets and volume calculations. The results showed good agreement of both manual and PIV measurements and suggested that the PIV technique coupled with image processing can be used for a precise quantification of flow through nozzles. The results also revealed that the method of measuring fluid flow through PIV is reliable and accurate for sprayer patterns. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=image%20processing" title="image processing">image processing</a>, <a href="https://publications.waset.org/abstracts/search?q=PIV" title=" PIV"> PIV</a>, <a href="https://publications.waset.org/abstracts/search?q=quantifying%20the%20water%20volume%20from%20nozzle" title=" quantifying the water volume from nozzle"> quantifying the water volume from nozzle</a>, <a href="https://publications.waset.org/abstracts/search?q=spraying%20pattern" title=" spraying pattern"> spraying pattern</a> </p> <a href="https://publications.waset.org/abstracts/53254/determining-water-quantity-from-sprayer-nozzle-using-particle-image-velocimetry-piv-and-image-processing-techniques" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53254.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">237</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">105</span> Design and Manufacture of an Autonomous Agricultural Robot for Pesticide Application</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Caner%20Koc">Caner Koc</a>, <a href="https://publications.waset.org/abstracts/search?q=Dilara%20Gerdan%20Koc"> Dilara Gerdan Koc</a>, <a href="https://publications.waset.org/abstracts/search?q=Emrah%20Saka"> Emrah Saka</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Ibrahim%20Karagol"> H. Ibrahim Karagol</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The use of pesticides in agricultural activities is the most harmful to the environment and farmers' health, and it also has the greatest input prices, along with fertilizers. In this study, an electric, electrostatically charged, autonomous agricultural robot was developed, modeled, and prototyped and manufactured. It allows for sensitive pesticide applications with variable levels, has controllable spray nozzles, and uses camera distance sensors to detect and spray into tree canopies. The created prototype was produced with flexibility in mind. Two stages of prototype manufacture were completed. The initial stage involved designing and producing the flexible primary body of the autonomous vehicle. Detachable hanger assemblies are employed so that the main body robot can perform a variety of agricultural tasks. The design of the spraying devices and their fitting to the autonomous vehicle was completed as the second stage of the prototype. The built prototype spraying robot's itinerary was planned using the free, open-source program Mission Planner. PX4, telemetry, and RTK GPS are used to maneuver the autonomous car along the designated path. To avoid potential obstructions, the robot uses ultrasonic and lidar sensors. The developed autonomous vehicle's energy needs are intended to be met entirely by electric batteries. In the event that the batteries run out of power, the sockets are set up to be recharged both by using the generator and the main power source through the specifically constructed panel. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=autonomous%20agricultural%20robot" title="autonomous agricultural robot">autonomous agricultural robot</a>, <a href="https://publications.waset.org/abstracts/search?q=pesticide" title=" pesticide"> pesticide</a>, <a href="https://publications.waset.org/abstracts/search?q=smart%20farming" title=" smart farming"> smart farming</a>, <a href="https://publications.waset.org/abstracts/search?q=spraying" title=" spraying"> spraying</a>, <a href="https://publications.waset.org/abstracts/search?q=variable%20rate%20application" title=" variable rate application"> variable rate application</a> </p> <a href="https://publications.waset.org/abstracts/165713/design-and-manufacture-of-an-autonomous-agricultural-robot-for-pesticide-application" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/165713.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">84</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">104</span> Path Planning for Unmanned Aerial Vehicles in Constrained Environments for Locust Elimination</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aadiv%20Shah">Aadiv Shah</a>, <a href="https://publications.waset.org/abstracts/search?q=Hari%20Nair"> Hari Nair</a>, <a href="https://publications.waset.org/abstracts/search?q=Vedant%20Mittal"> Vedant Mittal</a>, <a href="https://publications.waset.org/abstracts/search?q=Alice%20Cheeran"> Alice Cheeran</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Present-day agricultural practices such as blanket spraying not only lead to excessive usage of pesticides but also harm the overall crop yield. This paper introduces an algorithm to optimize the traversal of an unmanned aerial vehicle (UAV) in constrained environments. The proposed system focuses on the agricultural application of targeted spraying for locust elimination. Given a satellite image of a farm, target zones that are prone to locust swarm formation are detected through the calculation of the normalized difference vegetation index (NDVI). This is followed by determining the optimal path for traversal of a UAV through these target zones using the proposed algorithm in order to perform pesticide spraying in the most efficient manner possible. Unlike the classic travelling salesman problem involving point-to-point optimization, the proposed algorithm determines an optimal path for multiple regions, independent of its geometry. Finally, the paper explores the idea of implementing reinforcement learning to model complex environmental behaviour and make the path planning mechanism for UAVs agnostic to external environment changes. This system not only presents a solution to the enormous losses incurred due to locust attacks but also an efficient way to automate agricultural practices across the globe in order to improve farmer ergonomics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=locust" title="locust">locust</a>, <a href="https://publications.waset.org/abstracts/search?q=NDVI" title=" NDVI"> NDVI</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=path%20planning" title=" path planning"> path planning</a>, <a href="https://publications.waset.org/abstracts/search?q=reinforcement%20learning" title=" reinforcement learning"> reinforcement learning</a>, <a href="https://publications.waset.org/abstracts/search?q=UAV" title=" UAV"> UAV</a> </p> <a href="https://publications.waset.org/abstracts/138548/path-planning-for-unmanned-aerial-vehicles-in-constrained-environments-for-locust-elimination" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138548.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">251</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">103</span> Determination of Metalaxyl Efficacy in Controlling Phytophthora palmivora Infection of Durian Using Bioassay</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Supawadee%20Phetkhajone">Supawadee Phetkhajone</a>, <a href="https://publications.waset.org/abstracts/search?q=Wisuwat%20Songnuan"> Wisuwat Songnuan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Metalaxyl is one of the most common and effective fungicides used to control Phytophthora palmivora infection in durian (Durio zibethinus L.). The efficacy of metalaxyl residue in durian under greenhouse condition was evaluated using bioassay. Durian seedlings were treated with 2 methods of application, spraying, and soil drenching of metalaxyl, at recommended concentration (1000 mg/L). Mock treated samples were treated with 0.1% Tween20 and water for spraying and soil drenching methods, respectively. The experiment was performed in triplicates. Leaves were detached from treated plants at 0, 1, 7, 15, 20, 30, and 60 days after application, inoculated with metalaxyl-resistant and metalaxyl-sensitive isolates of P. palmivora, and incubated in a high humidity chamber for 5 days at room temperature. Metalaxyl efficacy was determined by measuring the lesion size on metalaxyl treated and mock treated samples. The results showed that metalaxyl can control metalaxyl-sensitive isolate of P. palmivora for at least 30 days after application in both methods of application. The metalaxyl-resistant isolate was not inhibited in all treatments. Leaf samples from spraying method showed larger lesions compared to soil drench method. These results demonstrated that metalaxyl applications, especially soil drenching methods showed high efficacy to control metalaxyl-sensitive isolates of P. palmivora, although it cannot control metalaxyl-resistant isolates of P. palmivora in all treatments. These qualitative data indicate that metalaxyl may suitable to control metalaxyl-sensitive isolates of P. palmivora infection. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioassay" title="bioassay">bioassay</a>, <a href="https://publications.waset.org/abstracts/search?q=degradation" title=" degradation"> degradation</a>, <a href="https://publications.waset.org/abstracts/search?q=durian" title=" durian"> durian</a>, <a href="https://publications.waset.org/abstracts/search?q=metalaxyl" title=" metalaxyl"> metalaxyl</a> </p> <a href="https://publications.waset.org/abstracts/121600/determination-of-metalaxyl-efficacy-in-controlling-phytophthora-palmivora-infection-of-durian-using-bioassay" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/121600.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">125</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">102</span> Estimating the Timing Interval for Malarial Indoor Residual Spraying: A Modelling Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Levicatus%20Mugenyi">Levicatus Mugenyi</a>, <a href="https://publications.waset.org/abstracts/search?q=Joaniter%20Nankabirwa"> Joaniter Nankabirwa</a>, <a href="https://publications.waset.org/abstracts/search?q=Emmanuel%20Arinaitwe"> Emmanuel Arinaitwe</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20Rek"> John Rek</a>, <a href="https://publications.waset.org/abstracts/search?q=Niel%20Hens"> Niel Hens</a>, <a href="https://publications.waset.org/abstracts/search?q=Moses%20Kamya"> Moses Kamya</a>, <a href="https://publications.waset.org/abstracts/search?q=Grant%20Dorsey"> Grant Dorsey</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Indoor residual spraying (IRS) reduces vector densities and malaria transmission, however, the most effective spraying intervals for IRS have not been well established. We aim to estimate the optimal timing interval for IRS using a modeling approach. Methods: We use a generalized additive model to estimate the optimal timing interval for IRS using the predicted malaria incidence. The model is applied to post IRS cohort clinical data from children aged 0.5–10 years in selected households in Tororo, historically a high malaria transmission setting in Uganda. Six rounds of IRS were implemented in Tororo during the study period (3 rounds with bendiocarb: December 2014 to December 2015, and 3 rounds with actellic: June 2016 to July 2018). Results: Monthly incidence of malaria from October 2014 to February 2019 decreased from 3.25 to 0.0 per person-years in the children under 5 years, and 1.57 to 0.0 for 5-10 year-olds. The optimal time interval for IRS differed between bendiocarb and actellic and by IRS round. It was estimated to be 17 and 40 weeks after the first round of bendiocarb and actellic, respectively. After the third round of actellic, 36 weeks was estimated to be optimal. However, we could not estimate from the data the optimal time after the second and third rounds of bendiocarb and after the second round of actellic. Conclusion: We conclude that to sustain the effect of IRS in a high-medium transmission setting, the second rounds of bendiocarb need to be applied roughly 17 weeks and actellic 40 weeks after the first round, and the timing differs for subsequent rounds. The amount of rainfall did not influence the trend in malaria incidence after IRS, as well as the IRS timing intervals. Our results suggest that shorter intervals for the IRS application can be more effective compared to the current practice, which is about 24 weeks for bendiocarb and 48 weeks for actellic. However, when considering our findings, one should account for the cost and drug resistance associated with IRS. We also recommend that the timing and incidence should be monitored in the future to improve these estimates. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=incidence" title="incidence">incidence</a>, <a href="https://publications.waset.org/abstracts/search?q=indoor%20residual%20spraying" title=" indoor residual spraying"> indoor residual spraying</a>, <a href="https://publications.waset.org/abstracts/search?q=generalized%20additive%20model" title=" generalized additive model"> generalized additive model</a>, <a href="https://publications.waset.org/abstracts/search?q=malaria" title=" malaria"> malaria</a> </p> <a href="https://publications.waset.org/abstracts/122951/estimating-the-timing-interval-for-malarial-indoor-residual-spraying-a-modelling-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/122951.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">121</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">101</span> Aerodynamic Design an UAV with Application on the Spraying Agricola with Method of Genetic Algorithm Optimization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saul%20A.%20Torres%20Z.">Saul A. Torres Z.</a>, <a href="https://publications.waset.org/abstracts/search?q=Eduardo%20Liceaga%20C."> Eduardo Liceaga C.</a>, <a href="https://publications.waset.org/abstracts/search?q=Alfredo%20Arias%20M."> Alfredo Arias M. </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Agriculture in the world falls within the main sources of economic and global needs, so care of crop is extremely important for owners and workers; one of the major causes of loss of product is the pest infection of different types of organisms. We seek to develop a UAV for agricultural spraying at a maximum altitude of 5000 meters above sea level, with a payload of 100 liters of fumigant. For the developing the aerodynamic design of the aircraft is using computational tools such as the "Vortex Lattice Athena" software, "MATLAB"," ANSYS FLUENT"," XFoil " package among others. Also methods are being used structured programming, exhaustive analysis of optimization methods and search. The results have a very low margin of error, and the multi- objective problems can be helpful for future developments. The program has 10 functions developed in MATLAB, these functions are related to each other to enable the development of design, and all these functions are controlled by the principal code "Master.m". <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aerodynamics%20design" title="aerodynamics design">aerodynamics design</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=algorithm%20genetic" title=" algorithm genetic"> algorithm genetic</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-objective%20problem" title=" multi-objective problem"> multi-objective problem</a>, <a href="https://publications.waset.org/abstracts/search?q=stability" title=" stability"> stability</a>, <a href="https://publications.waset.org/abstracts/search?q=vortex" title=" vortex"> vortex</a> </p> <a href="https://publications.waset.org/abstracts/21405/aerodynamic-design-an-uav-with-application-on-the-spraying-agricola-with-method-of-genetic-algorithm-optimization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21405.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">532</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">100</span> Fracture Strength of Carbon Nanotube Reinforced Plasma Sprayed Aluminum Oxide Coating</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anup%20Kumar%20Keshri">Anup Kumar Keshri</a>, <a href="https://publications.waset.org/abstracts/search?q=Arvind%20Agarwal"> Arvind Agarwal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Carbon nanotube (CNT) reinforced aluminum oxide (Al2O3) composite coating was synthesized on the steel substrate using plasma spraying technique. Three different compositions of coating such as Al2O3, Al2O¬3-4 wt. % CNT and Al2O3-8 wt. % CNT were synthesized and the fracture strength was determined using the four point bend test. Uniform dispersion of CNTs over Al2O3 powder particle was successfully achieved. With increasing CNT content, porosity in the coating showed decreasing trend and hence contributed towards enhanced mechanical properties such as hardness (~12% increased) and elastic modulus (~34 % increased). Fracture strength of the coating was found to be increasing with the CNT additions. By reinforcement of 8 wt. % of CNT, fracture strength increased by ~2.5 times. The improvement in fracture strength of Al2O3-CNT coating was attributed to three competitive phenomena viz. (i) lower porosity (ii) higher hardness and elastic modulus (iii) CNT bridging between splats. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aluminum%20oxide" title="aluminum oxide">aluminum oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20nanotube" title=" carbon nanotube"> carbon nanotube</a>, <a href="https://publications.waset.org/abstracts/search?q=fracture%20strength" title=" fracture strength"> fracture strength</a>, <a href="https://publications.waset.org/abstracts/search?q=plasma%20spraying" title=" plasma spraying"> plasma spraying</a> </p> <a href="https://publications.waset.org/abstracts/18770/fracture-strength-of-carbon-nanotube-reinforced-plasma-sprayed-aluminum-oxide-coating" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18770.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">394</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">99</span> Allelopathic Potential of Canola and Wheat to Control Weeds in Soybean (Glycine max)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alireza%20Dadkhah">Alireza Dadkhah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A filed experiment was done to develop management practices to reduce the use of synthetic herbicides, in the arid and semi-arid agricultural ecosystems of north east of Iran. Five treatments including I: chopped residues of canola (Brasica vulgaris), II: chopped residues of wheat (Triticum aestivum) both were separately incorporated to 25 cm depth soil, 20 days before sowing, III: shoot aqueous extract of canola, IV: shoot aqueous extract of wheat which were separately sprayed at post emergence stage and V: without any residues and spraying as control. The weed control treatments reduced the total weed cover, weed density and biomass of weed. The reduction in weed density with canola and wheat residues incorporation were up to 67.5 and 62.2% respectively, at 40 days after sowing and 65.3% and 75.6%, respectively, at 90 days after sowing, compared to control. However, post emergence spraying of shoot aqueous extract of canola and wheat, suppressed weed density up to 41.8 and 36.6% at 40 days after sowing and 54.2% and 52.7% at 90 days after sowing respectively, compared to control. Weed control treatments reduced weed cover (%), weed biomass and weeds stem length. Incorporation of canola and wheat residues in soil reduced weed cover (%) by 62.5% and 63% respectively, while spraying of shoot water extract of canola and wheat suppressed weed cover (%) by 39.6% and 40.4% respectively at 90 days after sowing. Application of canola and wheat residues increased soybean yield by 45.4% and 69.5% respectively, compared to control while post emergence application of shoot aqueous extract of canola and wheat increased soybean yield by 22% and 29.8% respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=allelopathy" title="allelopathy">allelopathy</a>, <a href="https://publications.waset.org/abstracts/search?q=Bio-herbicide" title=" Bio-herbicide"> Bio-herbicide</a>, <a href="https://publications.waset.org/abstracts/search?q=Brassica%20oleracea" title=" Brassica oleracea"> Brassica oleracea</a>, <a href="https://publications.waset.org/abstracts/search?q=plant%20residues" title=" plant residues"> plant residues</a>, <a href="https://publications.waset.org/abstracts/search?q=Triticum%20aestivum" title=" Triticum aestivum"> Triticum aestivum</a> </p> <a href="https://publications.waset.org/abstracts/21067/allelopathic-potential-of-canola-and-wheat-to-control-weeds-in-soybean-glycine-max" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21067.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">684</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">98</span> Gas Condensing Unit with Inner Heat Exchanger</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dagnija%20Blumberga">Dagnija Blumberga</a>, <a href="https://publications.waset.org/abstracts/search?q=Toms%20Prodanuks"> Toms Prodanuks</a>, <a href="https://publications.waset.org/abstracts/search?q=Ivars%20Veidenbergs"> Ivars Veidenbergs</a>, <a href="https://publications.waset.org/abstracts/search?q=Andra%20Blumberga"> Andra Blumberga</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Gas condensing units with inner tubes heat exchangers represent third generation technology and differ from second generation heat and mass transfer units, which are fulfilled by passive filling material layer. The first one improves heat and mass transfer by increasing cooled contact surface of gas and condensate drops and film formed in inner tubes heat exchanger. This paper presents a selection of significant factors which influence the heat and mass transfer. Experimental planning is based on the research and analysis of main three independent variables; velocity of water and gas as well as density of spraying. Empirical mathematical models show that the coefficient of heat transfer is used as dependent parameter which depends on two independent variables; water and gas velocity. Empirical model is proved by the use of experimental data of two independent gas condensing units in Lithuania and Russia. Experimental data are processed by the use of heat transfer criteria-Kirpichov number. Results allow drawing the graphical nomogram for the calculation of heat and mass transfer conditions in the innovative and energy efficient gas cooling unit. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=gas%20condensing%20unit" title="gas condensing unit">gas condensing unit</a>, <a href="https://publications.waset.org/abstracts/search?q=filling" title=" filling"> filling</a>, <a href="https://publications.waset.org/abstracts/search?q=inner%20heat%20exchanger" title=" inner heat exchanger"> inner heat exchanger</a>, <a href="https://publications.waset.org/abstracts/search?q=package" title=" package"> package</a>, <a href="https://publications.waset.org/abstracts/search?q=spraying" title=" spraying"> spraying</a>, <a href="https://publications.waset.org/abstracts/search?q=tunes" title=" tunes"> tunes</a> </p> <a href="https://publications.waset.org/abstracts/56372/gas-condensing-unit-with-inner-heat-exchanger" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56372.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">288</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">97</span> The Residual Efficacy of Etofenprox WP on Different Surfaces for Malaria Control in the Brazilian Legal Amazon</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ana%20Paula%20S.%20A.%20Correa">Ana Paula S. A. Correa</a>, <a href="https://publications.waset.org/abstracts/search?q=Allan%20K.%20R.%20Galardo"> Allan K. R. Galardo</a>, <a href="https://publications.waset.org/abstracts/search?q=Luana%20A.%20Lima"> Luana A. Lima</a>, <a href="https://publications.waset.org/abstracts/search?q=Talita%20F.%20Sobral"> Talita F. Sobral</a>, <a href="https://publications.waset.org/abstracts/search?q=Josiane%20N.%20Muller"> Josiane N. Muller</a>, <a href="https://publications.waset.org/abstracts/search?q=Jessica%20F.%20S.%20Barroso"> Jessica F. S. Barroso</a>, <a href="https://publications.waset.org/abstracts/search?q=Nercy%20V.%20R.%20Furtado"> Nercy V. R. Furtado</a>, <a href="https://publications.waset.org/abstracts/search?q=Ednaldo%20C.%20R%C3%AAgo."> Ednaldo C. Rêgo.</a>, <a href="https://publications.waset.org/abstracts/search?q=Jose%20B.%20P.%20Lima"> Jose B. P. Lima</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Malaria is a public health problem in the Brazilian Legal Amazon. Among the integrated approaches for anopheline control, the Indoor Residual Spraying (IRS) remains one of the main tools in the basic strategy applied in the Amazonian States, where the National Malaria Control Program currently uses one of the insecticides from the pyrethroid class, the Etofenprox WP. Understanding the residual efficacy of insecticides on different surfaces is essential to determine the spray cycles, in order to maintain a rational use and to avoid product waste. The aim of this study was to evaluate the residual efficacy of Etofenprox - VECTRON ® 20 WP on surfaces of Unplastered Cement (UC) and Unpainted Wood (UW) on panels, in field, and in semi-field evaluation of Brazil’s Amapa State. The evaluation criteria used was the cone bioassay test, following the World Health Organization (WHO) recommended method, using plastic cones and female mosquitos of Anopheles sp. The tests were carried out in laboratory panels, semi-field evaluation in a “test house” built in the Macapa municipality, and in the field in 20 houses, being ten houses per surface type (UC and UW), in an endemic malaria area in Mazagão’s municipality. The residual efficacy was measured from March to September 2017, starting one day after the spraying, repeated monthly for a period of six months. The UW surface presented higher residual efficacy than the UC. In fact, the UW presented a residual efficacy of the insecticide throughout the period of this study with a mortality rate above 80% in the panels (= 95%), in the "test house" (= 86%) and in field houses ( = 87%). On the UC surface it was observed a mortality decreased in all the tests performed, with a mortality rate of 45, 47 and 29% on panels, semi-field and in field, respectively; however, the residual efficacy ≥ 80% only occurred in the first evaluation after the 24-hour spraying bioassay in the "test house". Thus, only the UW surface meets the specifications of the World Health Organization Pesticide Evaluation Scheme (WHOPES) regarding the duration of effective action (three to six months). To sum up, the insecticide residual efficacy presented variability on the different surfaces where it was sprayed. Although the IRS with Etofenprox WP was efficient on UW surfaces, and it can be used in spraying cycles at 4-month intervals, it is important to consider the diversity of houses in the Brazilian Legal Amazon, in order to implement alternatives for vector control, including the evaluation of new products or different formulations types for insecticides. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anopheles" title="Anopheles">Anopheles</a>, <a href="https://publications.waset.org/abstracts/search?q=vector%20control" title=" vector control"> vector control</a>, <a href="https://publications.waset.org/abstracts/search?q=insecticide" title=" insecticide"> insecticide</a>, <a href="https://publications.waset.org/abstracts/search?q=bioassay" title=" bioassay"> bioassay</a> </p> <a href="https://publications.waset.org/abstracts/98533/the-residual-efficacy-of-etofenprox-wp-on-different-surfaces-for-malaria-control-in-the-brazilian-legal-amazon" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/98533.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">165</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">96</span> ‘It Is a Class Thing’: Socio-Economic Factors Sustaining Illicit Trading in New Naira Notes in Ibadan, Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Frank%20C.%20Amaechi">Frank C. Amaechi</a>, <a href="https://publications.waset.org/abstracts/search?q=Adeyinka%20A.%20Aderinto"> Adeyinka A. Aderinto</a>, <a href="https://publications.waset.org/abstracts/search?q=Usman%20A.%20Ojedokun"> Usman A. Ojedokun</a>, <a href="https://publications.waset.org/abstracts/search?q=Oludayo%20Tade"> Oludayo Tade</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Illicit trading in new naira notes has become a common practice in most communities in Nigeria despite the Central Bank Act’s in 2007 proscription of all forms of naira abuse. This study investigated the socio-economic factors sustaining illicit trading in new naira notes in Ibadan metropolis. The study was exploratory and cross-sectional in design. Neutralization theory was adopted as theoretical framework. Data were generated through the combination of in-depth interview and key informant interview methods. The purposive sampling technique was utilised to select five illicit traders of new naira notes, 32 patrons of the trade and six bank officials. Findings revealed that illicit trading in Nigeria’s national currency is flourishing because of the frequent demand for new naira notes that are not readily available in Nigerian banks. Also, the norm of cash spraying at social events is sustaining the illicit markets for new naira notes in Ibadan metropolis. In addition, a chain of network, comprising three principal actors, is behind the illegal business. A strict enforcement of the law banning cash spraying is advocated as a means of arresting this phenomenon. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=illicit%20trading" title="illicit trading">illicit trading</a>, <a href="https://publications.waset.org/abstracts/search?q=naira%20notes" title=" naira notes"> naira notes</a>, <a href="https://publications.waset.org/abstracts/search?q=national%20currency" title=" national currency"> national currency</a>, <a href="https://publications.waset.org/abstracts/search?q=Nigeria" title=" Nigeria"> Nigeria</a> </p> <a href="https://publications.waset.org/abstracts/70013/it-is-a-class-thing-socio-economic-factors-sustaining-illicit-trading-in-new-naira-notes-in-ibadan-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/70013.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">95</span> The Effect of Feedstock Powder Treatment / Processing on the Microstructure, Quality, and Performance of Thermally Sprayed Titanium Based Composite Coating</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Asma%20Salman">Asma Salman</a>, <a href="https://publications.waset.org/abstracts/search?q=Brian%20Gabbitas"> Brian Gabbitas</a>, <a href="https://publications.waset.org/abstracts/search?q=Peng%20Cao"> Peng Cao</a>, <a href="https://publications.waset.org/abstracts/search?q=Deliang%20Zhang"> Deliang Zhang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The performance of a coating is strongly dependent upon its microstructure, which in turn is dependent on the characteristics of the feedstock powder. This study involves the evaluation and performance of a titanium-based composite coating produced by the HVOF (high-velocity oxygen fuel) spraying method. The feedstock for making the composite coating was produced using high energy mechanical milling of TiO2 and Al powders followed by a combustion reaction. The characteristics of the feedstock powder were improved by treating it with an organic binder. Two types of coatings were produced using treated and untreated feedstock powders. The microstructures and characteristics of both types of coatings were studied, and their thermal shock resistance was accessed by dipping into molten aluminum. The results of this study showed that feedstock treatment did not have a significant effect on the microstructure of the coatings. However, it did affect the uniformity, thickness and surface roughness of the coating on the steel substrate. A coating produced by an untreated feedstock showed better thermal shock resistance in molten aluminum compared with the one produced by PVA (polyvinyl alcohol) treatment. <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=feedstock" title=" feedstock"> feedstock</a>, <a href="https://publications.waset.org/abstracts/search?q=powder%20processing" title=" powder processing"> powder processing</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20shock%20resistance" title=" thermal shock resistance"> thermal shock resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=thermally%20spraying" title=" thermally spraying"> thermally spraying</a> </p> <a href="https://publications.waset.org/abstracts/62969/the-effect-of-feedstock-powder-treatment-processing-on-the-microstructure-quality-and-performance-of-thermally-sprayed-titanium-based-composite-coating" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62969.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">272</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">94</span> The Isolation of Enterobacter Ludwigii Strain T976 from Nicotiana Tabacum L. Yunyan 97 and Its Application Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gao%20Qin">Gao Qin</a>, <a href="https://publications.waset.org/abstracts/search?q=Hu%20Liwei"> Hu Liwei</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong%20Xiangzhou"> Dong Xiangzhou</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhu%20Qifa"> Zhu Qifa</a>, <a href="https://publications.waset.org/abstracts/search?q=Cheng%20Tingming"> Cheng Tingming</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhao%20Limei"> Zhao Limei</a>, <a href="https://publications.waset.org/abstracts/search?q=Yang%20Mengmeng"> Yang Mengmeng</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhai%20Zhen"> Zhai Zhen</a>, <a href="https://publications.waset.org/abstracts/search?q=Dai%20Huaxin"> Dai Huaxin</a>, <a href="https://publications.waset.org/abstracts/search?q=Liang%20Taibo"> Liang Taibo</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhang%20Shixiang"> Zhang Shixiang</a>, <a href="https://publications.waset.org/abstracts/search?q=Xue%20Chaoqun"> Xue Chaoqun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The functional strain T976 for starch degradation was isolated from Nicotiana tabacum L. Yunyan 97 tobacco leaves, the ratio of starch hydrolysis transparent circle diameter to colony diameter of the strain was 4.14, 16S rDNA sequencing identified these strains as Enterobacter ludwigii. Then Enterobacter ludwigii T976 was fermented and spaying Yunyan 97 plant in vigorous growing stage. The results of once spraying fermentation broth of Enterobacter ludwigii T976 showed that starch content of upper leaves decreased slightly, from 3.77% to 3.1%, the reducing sugar content increased from 4.39% to 5.53%, and the total sugar content increased from 5.82% to 7.39%. The chemical content was also checked after three time spraying. The starch content of middle leaves decreased from 5.63% to 3.74%, while the content of total sugar and reducing sugar decreased slightly. And the starch content of upper leaves decreased from 7.62% to 4.78%, the total sugar and reducing sugar decreased slightly, and starch content of middle leaf decreased from 6.27% to 3.62%, the total sugar and reducing sugar did not change much, and other chemical components were in a suitable range. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nicotiana%20tabacum" title="nicotiana tabacum">nicotiana tabacum</a>, <a href="https://publications.waset.org/abstracts/search?q=yunyan%2097" title=" yunyan 97"> yunyan 97</a>, <a href="https://publications.waset.org/abstracts/search?q=leaf" title=" leaf"> leaf</a>, <a href="https://publications.waset.org/abstracts/search?q=starch" title=" starch"> starch</a>, <a href="https://publications.waset.org/abstracts/search?q=degradation" title=" degradation"> degradation</a>, <a href="https://publications.waset.org/abstracts/search?q=enterobacter%20ludwigii" title=" enterobacter ludwigii"> enterobacter ludwigii</a> </p> <a href="https://publications.waset.org/abstracts/181858/the-isolation-of-enterobacter-ludwigii-strain-t976-from-nicotiana-tabacum-l-yunyan-97-and-its-application-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/181858.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">56</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">93</span> Research and Innovation Centre</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Krasimir%20Ivanov">Krasimir Ivanov</a>, <a href="https://publications.waset.org/abstracts/search?q=Tonyo%20Tonev"> Tonyo Tonev</a>, <a href="https://publications.waset.org/abstracts/search?q=Nguyen%20Nguyen"> Nguyen Nguyen</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexander%20Peltekov"> Alexander Peltekov</a>, <a href="https://publications.waset.org/abstracts/search?q=Anyo%20Mitkov"> Anyo Mitkov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Maize is among the most economically important crops and at the same time one of the most sensitive to soil deficiency in zinc. In this paper, the impact of the foliar zinc application in the form of zinc hydroxy nitrate suspension on the micro and macro elements partitioning in maize leaves and grain was studied during spring maize season, 2017. The impact of the foliar zinc fertilization on the grain yield and quality was estimated too. The experiment was performed by the randomized block design with 8 variants in 3 replications. Seven suspension solutions whit different Zn concentration were used, including ZnO suspension and zinc hydroxyl nitrate alone or nixed with other nutrients. Fertilization and irrigation were the same for all variants. The Zn content and the content of selected micro (Cu, Fe) and macro (Ca, Mg, P and K) elements in maize leaves were determined two weeks after the first spraying (5-6 sheets), two weeks after the second spraying (9-10 sheets) and after harvesting. It was concluded that the synthesized zinc hydroxy nitrate demonstrates potential as the long-term foliar fertilizer. A significant (p < 0.05) effect of zinc accumulation in maize leaves by foliar zinc application during the first growth stage was found, followed by its reutilization to other plants organs during the second growth stage. Significant export of Cu, P, and K from lower and middle leaves was observed. The content of Ca and Mg remains constant in the whole longevity period, while the content of Fe decreases sharply. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=foliar%20fertilization" title="foliar fertilization">foliar fertilization</a>, <a href="https://publications.waset.org/abstracts/search?q=zinc%20hydroxy%20nitrate" title=" zinc hydroxy nitrate"> zinc hydroxy nitrate</a>, <a href="https://publications.waset.org/abstracts/search?q=maize" title=" maize"> maize</a>, <a href="https://publications.waset.org/abstracts/search?q=zinc" title=" zinc"> zinc</a> </p> <a href="https://publications.waset.org/abstracts/94916/research-and-innovation-centre" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/94916.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">92</span> Dicotyledon Weed Quantification Algorithm for Selective Herbicide Application in Maize Crops: Statistical Evaluation of the Potential Herbicide Savings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Morten%20Stigaard%20Laursen">Morten Stigaard Laursen</a>, <a href="https://publications.waset.org/abstracts/search?q=Rasmus%20Nyholm%20J%C3%B8rgensen"> Rasmus Nyholm Jørgensen</a>, <a href="https://publications.waset.org/abstracts/search?q=Henrik%20Skov%20Midtiby"> Henrik Skov Midtiby</a>, <a href="https://publications.waset.org/abstracts/search?q=Anders%20Krogh%20Mortensen"> Anders Krogh Mortensen</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanmohan%20Baby"> Sanmohan Baby</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work contributes a statistical model and simulation framework yielding the best estimate possible for the potential herbicide reduction when using the MoDiCoVi algorithm all the while requiring a efficacy comparable to conventional spraying. In June 2013 a maize field located in Denmark were seeded. The field was divided into parcels which was assigned to one of two main groups: 1) Control, consisting of subgroups of no spray and full dose spraty; 2) MoDiCoVi algorithm subdivided into five different leaf cover thresholds for spray activation. In addition approximately 25% of the parcels were seeded with additional weeds perpendicular to the maize rows. In total 299 parcels were randomly assigned with the 28 different treatment combinations. In the statistical analysis, bootstrapping was used for balancing the number of replicates. The achieved potential herbicide savings was found to be 70% to 95% depending on the initial weed coverage. However additional field trials covering more seasons and locations are needed to verify the generalisation of these results. There is a potential for further herbicide savings as the time interval between the first and second spraying session was not long enough for the weeds to turn yellow, instead they only stagnated in growth. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=herbicide%20reduction" title="herbicide reduction">herbicide reduction</a>, <a href="https://publications.waset.org/abstracts/search?q=macrosprayer" title=" macrosprayer"> macrosprayer</a>, <a href="https://publications.waset.org/abstracts/search?q=weed%20crop%20discrimination" title=" weed crop discrimination"> weed crop discrimination</a>, <a href="https://publications.waset.org/abstracts/search?q=site-specific" title=" site-specific"> site-specific</a>, <a href="https://publications.waset.org/abstracts/search?q=sprayer%20boom" title=" sprayer boom"> sprayer boom</a> </p> <a href="https://publications.waset.org/abstracts/62424/dicotyledon-weed-quantification-algorithm-for-selective-herbicide-application-in-maize-crops-statistical-evaluation-of-the-potential-herbicide-savings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62424.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">91</span> The Trial Using Bio-Product for Reducing Arsenic Heavy Metal in Soil in Grow Organic Vegetables </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nittaya%20Nokham">Nittaya Nokham</a>, <a href="https://publications.waset.org/abstracts/search?q=Nattaphon%20Kamon"> Nattaphon Kamon</a>, <a href="https://publications.waset.org/abstracts/search?q=Pipatpong%20%20%20%20Pimkhot"> Pipatpong Pimkhot</a>, <a href="https://publications.waset.org/abstracts/search?q=Pedcharada%20Yusuk"> Pedcharada Yusuk </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Testing efficacy of a bio-product (bp) to reduce amount of arsenic was carried out in soil which were used for cultivation of organic vegetables, at Watchan Royal Project Development Center, Kulayaniwattana district, Chiang Mai. The test consists of 6 treatments e.g. Tr.1) Control: To underlie the planting pits (pp)with compost; Tr.2) Using bp: To underlie thepp with compost mixed with (+) bp at 100 g/pit; Tr.3) Using bp: To underlie the pp with compost + bp at 100 g/pit and to spray the vegetables with bp at 2 l/20 l of water, once a week; Tr.4) Using bp: To spread the compost bp on the planting area at 3 kg/1 m2 ; Tr.5) Using bp: To spread the compost + bp on the planting area at 3 kg/1 m2and to spray vegetables with bp at 2 l/20 l of water; Tr.6) Using bp: To spray vegetables with bp at 2 l/20 l of water. Result showed that after first trial of pointed cabbage cultivation, only Tr.6 had a small reduction of arsenic; while the others had higher amount of the metal. After second trial of growing red oak leaf, Tr.6 had more reduction of arsenic while Tr.5 and Tr.3 had less reduction compared to Tr.6 but more reduction than the others. In the third trial of growing mustard, very small reduction could be found on Tr.6 and Tr.5 but more reduction in Tr.3. For the fourth (last) trial with cos romaine lettuce: Tr.6, Tr.5 showed most reduction of arsenic to about half of the original amount. So, it can be concluded that this bio-product can help reducing arsenic when using this product by spraying the bp to vegetables at concentration of 2 l/20 l of water once week (Tr.6), or using the bio-product mixed with compost to spread on the planting area at 3 kg/1 m2 together with spraying the product (Tr.5). The results obtained from continuous planting 4 kinds of vegetables at the same area. The amount of arsenic found in roots and stem is very small in the 4 vegetables. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=organic%20vegetables" title="organic vegetables">organic vegetables</a>, <a href="https://publications.waset.org/abstracts/search?q=bio-product" title=" bio-product"> bio-product</a>, <a href="https://publications.waset.org/abstracts/search?q=arsenic" title=" arsenic"> arsenic</a>, <a href="https://publications.waset.org/abstracts/search?q=soil" title=" soil"> soil</a> </p> <a href="https://publications.waset.org/abstracts/77108/the-trial-using-bio-product-for-reducing-arsenic-heavy-metal-in-soil-in-grow-organic-vegetables" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77108.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">90</span> Novel Animal Drawn Wheel-Axle Mechanism Actuated Knapsack Boom Sprayer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20O.%20Abdulmalik">Ibrahim O. Abdulmalik</a>, <a href="https://publications.waset.org/abstracts/search?q=Michael%20C.%20Amonye"> Michael C. Amonye</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahdi%20Makoyo"> Mahdi Makoyo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Manual knapsack sprayer is the most popular means of farm spraying in Nigeria. It has its limitations. Apart from the human fatigue, which leads to unsteady walking steps, their field capacities are small. They barely cover about 0.2hectare per hour. Their small swath implies that a sizeable farm would take several days to cover. Weather changes are erratic and often it is desired to spray a large farm within hours or few days for even effect, uniformity and to avoid adverse weather interference. It is also often required that a large farm be covered within a short period to avoid re-emergence of weeds before crop emergence. Deployment of many knapsack operators to large farms has not been successful. Human error in taking equally spaced swaths usually result in over dosage of overlaps and in unapplied areas due to error at edges overlaps. Large farm spraying require boom equipment with larger swath. Reduced error in swath overlaps and spraying within the shortest possible time are then assured. Tractor boom sprayers would readily overcome these problems and achieve greater coverage, but they are not available in the country. Tractor hire for cultivation is very costly with the attendant lack of spare parts and specialized technicians for maintenance wherefore farmers find it difficult to engage tractors for cultivation and would avoid considering the employment of a tractor boom sprayer. Animal traction in farming is predominant in Nigeria, especially in the Northern part of the country. Development of boom sprayers drawn by work animals surely implies the maximization of animal utilization in farming. The Hydraulic Equipment Development Institute, Kano, in keeping to its mandate of targeted R&D in hydraulic and pneumatic systems, has developed an Animal Drawn Knapsack Boom Sprayer with four nozzles using the axle mechanism of a two wheeled cart to actuate the piston pump of two knapsack sprayers in line with appropriate technology demand of the country. It is hoped that the introduction of this novel contrivance shall enhance crop protection practice and lead to greater crop and food production in Nigeria. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=boom" title="boom">boom</a>, <a href="https://publications.waset.org/abstracts/search?q=knapsack" title=" knapsack"> knapsack</a>, <a href="https://publications.waset.org/abstracts/search?q=farm" title=" farm"> farm</a>, <a href="https://publications.waset.org/abstracts/search?q=sprayer" title=" sprayer"> sprayer</a>, <a href="https://publications.waset.org/abstracts/search?q=wheel%20axle" title=" wheel axle "> wheel axle </a> </p> <a href="https://publications.waset.org/abstracts/27405/novel-animal-drawn-wheel-axle-mechanism-actuated-knapsack-boom-sprayer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27405.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span 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