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implantation</title> <meta name="description" content="Search results for: nitrogen ion implantation"> <meta name="keywords" content="nitrogen ion implantation"> <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 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="nitrogen ion implantation"> <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> 1244</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: nitrogen ion implantation</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1244</span> Nanomechanical Characterization of Titanium Alloy Modified by Nitrogen Ion Implantation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Josef%20Sepitka">Josef Sepitka</a>, <a href="https://publications.waset.org/abstracts/search?q=Petr%20Vlcak"> Petr Vlcak</a>, <a href="https://publications.waset.org/abstracts/search?q=Tomas%20Horazdovsky"> Tomas Horazdovsky</a>, <a href="https://publications.waset.org/abstracts/search?q=Vratislav%20Perina"> Vratislav Perina</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An ion implantation technique was used for designing the surface area of a titanium alloy and for irradiation-enhanced hardening of the surface. The Ti6Al4V alloy was treated by nitrogen ion implantation at fluences of 2·10<sup>17</sup> and 4·10<sup>17</sup> cm<sup>-2</sup> and at ion energy 90 keV. The depth distribution of the nitrogen was investigated by Rutherford Backscattering Spectroscopy. The gradient of mechanical properties was investigated by nanoindentation. The continuous measurement mode was used to obtain depth profiles of the indentation hardness and the reduced storage modulus of the modified surface area. The reduced storage modulus and the hardness increase with increasing fluence. Increased fluence shifts the peak of the mechanical properties as well as the peak of nitrogen concentration towards to the surface. This effect suggests a direct relationship between mechanical properties and nitrogen distribution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20ion%20implantation" title="nitrogen ion implantation">nitrogen ion implantation</a>, <a href="https://publications.waset.org/abstracts/search?q=titanium-based%20nanolayer" title=" titanium-based nanolayer"> titanium-based nanolayer</a>, <a href="https://publications.waset.org/abstracts/search?q=storage%20modulus" title=" storage modulus"> storage modulus</a>, <a href="https://publications.waset.org/abstracts/search?q=hardness" title=" hardness"> hardness</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a> </p> <a href="https://publications.waset.org/abstracts/58576/nanomechanical-characterization-of-titanium-alloy-modified-by-nitrogen-ion-implantation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58576.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">343</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">1243</span> Nanocharacterization of PIII Treated 7075 Aluminum Alloy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bruno%20Bacci%20Fernandes">Bruno Bacci Fernandes</a>, <a href="https://publications.waset.org/abstracts/search?q=Stephan%20M%C3%A4ndl"> Stephan Mändl</a>, <a href="https://publications.waset.org/abstracts/search?q=Ata%C3%ADde%20Ribeiro%20da%20Silva%20Junior"> Ataíde Ribeiro da Silva Junior</a>, <a href="https://publications.waset.org/abstracts/search?q=Jos%C3%A9%20Osvaldo%20Rossi"> José Osvaldo Rossi</a>, <a href="https://publications.waset.org/abstracts/search?q=M%C3%A1rio%20Ueda"> Mário Ueda</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nitrogen implantation in aluminum and its alloys is acquainted for the difficulties in obtaining modified layers deeper than 200 nm. The present work addresses a new method to overcome such a problem; although, the coating with nitrogen and oxygen obtained by plasma immersion ion implantation (PIII) into a 7075 aluminum alloy surface was too shallow. This alloy is commonly used for structural parts in aerospace applications. Such a layer was characterized by secondary ion mass spectroscopy, electron microscopy, and nanoindentation experiments reciprocating wear tests. From the results, one can assume that the wear of this aluminum alloy starts presenting severe abrasive wear followed by an additional adhesive mechanism. PIII produced a slight difference, as shown in all characterizations carried out in this work. The results shown here can be used as the scientific basis for further nitrogen PIII experiments in aluminum alloys which have the goal to produce thicker modified layers or to improve their surface properties. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aluminum%20alloys" title="aluminum alloys">aluminum alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=plasma%20immersion%20ion%20implantation" title=" plasma immersion ion implantation"> plasma immersion ion implantation</a>, <a href="https://publications.waset.org/abstracts/search?q=tribological%20properties" title=" tribological properties"> tribological properties</a>, <a href="https://publications.waset.org/abstracts/search?q=hardness" title=" hardness"> hardness</a>, <a href="https://publications.waset.org/abstracts/search?q=nanofatigue" title=" nanofatigue"> nanofatigue</a> </p> <a href="https://publications.waset.org/abstracts/57186/nanocharacterization-of-piii-treated-7075-aluminum-alloy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57186.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">339</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">1242</span> Nano Effects of Nitrogen Ion Implantation on TiN Hard Coatings Deposited by Physical Vapour Deposition and Ion Beam Assisted Deposition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Branko%20Skoric">Branko Skoric</a>, <a href="https://publications.waset.org/abstracts/search?q=Aleksandar%20Miletic"> Aleksandar Miletic</a>, <a href="https://publications.waset.org/abstracts/search?q=Pal%20Terek"> Pal Terek</a>, <a href="https://publications.waset.org/abstracts/search?q=Lazar%20Kovacevic"> Lazar Kovacevic</a>, <a href="https://publications.waset.org/abstracts/search?q=Milan%20Kukuruzovic"> Milan Kukuruzovic </a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we present the results of a study of TiN thin films which are deposited by a Physical Vapour Deposition (PVD) and Ion Beam Assisted Deposition (IBAD). In the present investigation the subsequent ion implantation was provided with N<sup>5+</sup> ions. The ion implantation was applied to enhance the mechanical properties of surface. The thin film deposition process exerts a number of effects such as crystallographic orientation, morphology, topography, densification of the films. A variety of analytic techniques were used for characterization, such as scratch test, calo test, Scanning electron microscopy (SEM), Atomic Force Microscope (AFM), X-ray diffraction (XRD) and Energy Dispersive X-ray analysis (EDAX). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=coating" title="coating">coating</a>, <a href="https://publications.waset.org/abstracts/search?q=super%20hard" title=" super hard"> super hard</a>, <a href="https://publications.waset.org/abstracts/search?q=ion%20implantation" title=" ion implantation"> ion implantation</a>, <a href="https://publications.waset.org/abstracts/search?q=nanohardness" title=" nanohardness"> nanohardness</a> </p> <a href="https://publications.waset.org/abstracts/42278/nano-effects-of-nitrogen-ion-implantation-on-tin-hard-coatings-deposited-by-physical-vapour-deposition-and-ion-beam-assisted-deposition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/42278.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">346</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1241</span> Coated Chromium Thin Film on Zirconium for Corrosion Resistance of Nuclear Fuel Rods by Plasma Focus Device</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amir%20Raeisdana">Amir Raeisdana</a>, <a href="https://publications.waset.org/abstracts/search?q=Davood%20Sohrabi"> Davood Sohrabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mojtaba%20Nohekhan"> Mojtaba Nohekhan</a>, <a href="https://publications.waset.org/abstracts/search?q=Ameneh%20Kargarian"> Ameneh Kargarian</a>, <a href="https://publications.waset.org/abstracts/search?q=Maryam%20Ghapanvari"> Maryam Ghapanvari</a>, <a href="https://publications.waset.org/abstracts/search?q=Alireza%20Aslezaeem"> Alireza Aslezaeem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Improvement of zirconium properties by chromium coating and nitrogen implantation is ideal to protect the nuclear fuel rods against corrosion and secondary hydrogenation. Metallic chromium (Cr) has attracted attention as a potential coating material on zirconium alloys, to limit external cladding corrosion. In this research, high energy plasma focus device was used to coat the chromium and implant the nitrogen ions in the zirconium substrate. This device emits high-energy nitrogen ions of 10 keV-1 MeV and with a flux of 10^16 ions/cm^2 in each shot toward the target so it is attractive for implantation on the substrate materials at the room temperature. Six zirconium samples in 2cm×2cm dimensions with 1mm thickness were located at a distance of 20cm from the place where the pinch is formed. The experiments are carried out in 0.5 mbar of the nitrogen gas pressure and 15 kV of the charging voltage. Pure Cr disc was installed on the anode head for sputtering of the chromium and deposition on zirconium substrate. When the pinch plasma column decays due to various instabilities, intense and high-energy N2 ions are accelerated towards the zirconium substrate also sputtered Cr is deposited on the zirconium substrate. XRD and XRF analysis were used to study the structural properties of the samples. XRF analysis indicates 77.1% of Zr and 11.1% of Cr in the surface of the sample. XRD spectra shows the formation of ZrN, CrN and CrZr composites after nitrogen implantation and chromium coating. XRD spectra shows the chromium peak height equal to 152.80 a.u. for the major sample (θ=0֯) and 92.99 a.u. for the minor sample (θ=6֯), so implantation and coating along the main axis of the device is significantly more than other directions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ZrN%20and%20CrN%20and%20CrZr%20composites" title="ZrN and CrN and CrZr composites">ZrN and CrN and CrZr composites</a>, <a href="https://publications.waset.org/abstracts/search?q=angular%20distribution%20for%20Cr%20deposition%20rate" title=" angular distribution for Cr deposition rate"> angular distribution for Cr deposition rate</a>, <a href="https://publications.waset.org/abstracts/search?q=zirconium%20corrosion%20resistance" title=" zirconium corrosion resistance"> zirconium corrosion resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=nuclear%20fuel%20rods" title=" nuclear fuel rods"> nuclear fuel rods</a>, <a href="https://publications.waset.org/abstracts/search?q=plasma%20focus%20device" title=" plasma focus device"> plasma focus device</a> </p> <a href="https://publications.waset.org/abstracts/190103/coated-chromium-thin-film-on-zirconium-for-corrosion-resistance-of-nuclear-fuel-rods-by-plasma-focus-device" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/190103.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">23</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">1240</span> Characterization of N+C, Ti+N and Ti+C Ion Implantation into Ti6Al4V Alloy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Xingguo%20Feng">Xingguo Feng</a>, <a href="https://publications.waset.org/abstracts/search?q=Hui%20Zhou"> Hui Zhou</a>, <a href="https://publications.waset.org/abstracts/search?q=Kaifeng%20Zhang"> Kaifeng Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhao%20Jiang"> Zhao Jiang</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanjun%20Hu"> Hanjun Hu</a>, <a href="https://publications.waset.org/abstracts/search?q=Jun%20Zheng"> Jun Zheng</a>, <a href="https://publications.waset.org/abstracts/search?q=Hong%20Hao"> Hong Hao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> TiN and TiC films have been prepared on Ti6Al4V alloy substrates by plasma-based ion implantation. The effect of N+C and Ti+N hybrid ion implantation at 50 kV, and Ti+C hybrid ion implantation at 20 kV, 35 kV and 50 kV extraction voltages on mechanical properties at a dose of 2×10¹⁷ ions / cm² was studied. The chemical states and microstructures of the implanted samples were investigated using X-ray photoelectron (XPS), and X-ray diffraction (XRD), together with the mechanical and tribological properties of the samples were characterized using nano-indentation and ball-on-disk tribometer. It was found that the modified layer by Ti+C implanted at 50 kV was composed of mainly TiC and Ti-O bond and the layer of Ti+N implanted at 50 kV was observed to be TiN and Ti-O bond. Hardness tests have shown that the hardness values for N+C, Ti+N, and Ti+C hybrid ion implantation samples were much higher than the un-implanted ones. The results of wear tests showed that both Ti+C and Ti+N ion implanted samples had much better wear resistance compared un-implanted sample. The wear rate of Ti+C implanted at 50 kV sample was 6.7×10⁻⁵mm³ / N.m, which was decreased over one order than unimplanted samples. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=plasma%20ion%20implantation" title="plasma ion implantation">plasma ion implantation</a>, <a href="https://publications.waset.org/abstracts/search?q=x-ray%20photoelectron%20%28XPS%29" title=" x-ray photoelectron (XPS)"> x-ray photoelectron (XPS)</a>, <a href="https://publications.waset.org/abstracts/search?q=hardness" title=" hardness"> hardness</a>, <a href="https://publications.waset.org/abstracts/search?q=wear" title=" wear"> wear</a> </p> <a href="https://publications.waset.org/abstracts/71164/characterization-of-nc-tin-and-tic-ion-implantation-into-ti6al4v-alloy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71164.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">410</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">1239</span> The Long-Term Effects of Immediate Implantation, Early Implantation and Delayed Implantation at Aesthetics Area</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Xing%20Wang">Xing Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Lin%20Feng"> Lin Feng</a>, <a href="https://publications.waset.org/abstracts/search?q=Xuan%20Zou">Xuan Zou</a>, <a href="https://publications.waset.org/abstracts/search?q=Hongchen%20liu"> Hongchen liu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Immediate Implantation after tooth extraction is considered to be the ideal way to retain the alveolar bone, but some scholars believe the aesthetic effect in the Early Implantation case are more reliable. In this study, 89 patients were added to this retrospective study up to 5 years. Assessment indicators was including the survival of the implant (peri-implant infection, implant loosening, shedding, crowns and occlusal), aesthetics (color and fullness gums, papilla height, probing depth, X-ray alveolar crest height, the patient's own aesthetic satisfaction, doctors aesthetics score), repair defects around the implant (peri-implant bone changes in height and thickness, whether the use of autologous bone graft, whether to use absorption/repair manual nonabsorbable material), treatment time, cost and the use of antibiotics.The results demonstrated that there is no significant difference in long-term success rate of immediate implantation, early implantation and delayed implantation (p> 0.05). But the results indicated immediate implantation group could get get better aesthetic results after two years (p< 0.05), but may increase the risk of complications and failures (p< 0.05). High-risk indicators include gingival recession, labial bone wall damage, thin gingival biotypes, planting position and occlusal restoration bad and so on. No matter which type of implanting methods was selected, the extraction methods and bone defect amplification techniques are observed as a significant factors on aesthetic effect (p< 0.05). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=immediate%20implantation" title="immediate implantation">immediate implantation</a>, <a href="https://publications.waset.org/abstracts/search?q=long-term%20effects" title=" long-term effects"> long-term effects</a>, <a href="https://publications.waset.org/abstracts/search?q=aesthetics%20area" title=" aesthetics area"> aesthetics area</a>, <a href="https://publications.waset.org/abstracts/search?q=dental%20implants" title=" dental implants"> dental implants</a> </p> <a href="https://publications.waset.org/abstracts/30972/the-long-term-effects-of-immediate-implantation-early-implantation-and-delayed-implantation-at-aesthetics-area" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30972.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">356</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1238</span> Defect Profile Simulation of Oxygen Implantation into Si and GaAs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Dahbi">N. Dahbi</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20B.%20Taleb"> R. B. Taleb </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study concerns the ion implantation of oxygen in two semiconductors Si and GaAs realized by a simulation using the SRIM tool. The goal of this study is to compare the effect of implantation energy on the distribution of implant ions in the two targets and to examine the different processes resulting from the interaction between the ions of oxygen and the target atoms (Si, GaAs). SRIM simulation results indicate that the implanted ions have a profile as a function of Gaussian-type; oxygen produced more vacancies and implanted deeper in Si compared to GaAs. Also, most of the energy loss is due to ionization and phonon production, where vacancy production amounts to few percent of the total energy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=defect%20profile" title="defect profile">defect profile</a>, <a href="https://publications.waset.org/abstracts/search?q=GaAs" title=" GaAs"> GaAs</a>, <a href="https://publications.waset.org/abstracts/search?q=ion%20implantation" title=" ion implantation"> ion implantation</a>, <a href="https://publications.waset.org/abstracts/search?q=SRIM" title=" SRIM"> SRIM</a>, <a href="https://publications.waset.org/abstracts/search?q=phonon%20production" title=" phonon production"> phonon production</a>, <a href="https://publications.waset.org/abstracts/search?q=vacancies" title=" vacancies"> vacancies</a> </p> <a href="https://publications.waset.org/abstracts/97753/defect-profile-simulation-of-oxygen-implantation-into-si-and-gaas" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/97753.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">185</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">1237</span> Numerical Simulation and Analysis on Liquid Nitrogen Spray Heat Exchanger</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wenjing%20Ding">Wenjing Ding</a>, <a href="https://publications.waset.org/abstracts/search?q=Weiwei%20Shan"> Weiwei Shan</a>, <a href="https://publications.waset.org/abstracts/search?q=Zijuan"> Zijuan</a>, <a href="https://publications.waset.org/abstracts/search?q=Wang"> Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Chao%20He"> Chao He</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Liquid spray heat exchanger is the critical equipment of temperature regulating system by gaseous nitrogen which realizes the environment temperature in the range of -180 ℃~+180 ℃. Liquid nitrogen is atomized into smaller liquid drops through liquid nitrogen sprayer and then contacts with gaseous nitrogen to be cooled. By adjusting the pressure of liquid nitrogen and gaseous nitrogen, the flowrate of liquid nitrogen is changed to realize the required outlet temperature of heat exchanger. The temperature accuracy of shrouds is ±1 ℃. Liquid nitrogen spray heat exchanger is simulated by CATIA, and the numerical simulation is performed by FLUENT. The comparison between the tests and numerical simulation is conducted. Moreover, the results help to improve the design of liquid nitrogen spray heat exchanger. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=liquid%20nitrogen%20spray" title="liquid nitrogen spray">liquid nitrogen spray</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature%20regulating%20system" title=" temperature regulating system"> temperature regulating system</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20exchanger" title=" heat exchanger"> heat exchanger</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20simulation" title=" numerical simulation"> numerical simulation</a> </p> <a href="https://publications.waset.org/abstracts/73604/numerical-simulation-and-analysis-on-liquid-nitrogen-spray-heat-exchanger" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/73604.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">326</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1236</span> Anti-Implantation Activity of Kepel (Stelechocarpus burahol) Pulp Ethanol Extract in Female Mice </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suparmi">Suparmi</a>, <a href="https://publications.waset.org/abstracts/search?q=Israhnanto%20Isradji"> Israhnanto Isradji</a>, <a href="https://publications.waset.org/abstracts/search?q=Dina%20Fatmawati"> Dina Fatmawati</a>, <a href="https://publications.waset.org/abstracts/search?q=Iwang%20Yusuf"> Iwang Yusuf</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Kepel (Stelechocarpus burahol) is one of the traditional plants originating from Indonesia that can be used to prevent pregnancy, launched urine and kidney inflammation. Kepel pulp has compounds alkaloid, triterpenoid, tannin, saponin, and flavonoid, when used will give the hormonal and cytotoxic effect. This study was aimed at evaluating ethanol extract of kepel in vivo for anti-implantation activities. In this experimental study with post test only control group design, 20 female mice were randomly divided into 4 groups. It was divided into the control, the 0,65 mg dose, 1,3 mg dose, and 3,6 mg dose of kepel pulp extract group. The extract soluted in DMSO’s solution and was given 1 ml per mice. The extract was given 10 days before copulation until 18 days of pregnancy. Then, the number of implantation, presence of fetus, and embrio resorbtion were recorded and used to calculate the percentage anti-implantation effect. The results were tested by One-way ANOVA. The mean number of implantation in group control, 0,65 mg;1,3 mg; and 2,6 mg were 5,60±1,14; 6,20± 1,64; 7,60±1,51; 8,00± 1,58, respectively. One way Annova test showed that there is no significant difference in the number of implantation between the group (p > 0,05). The administration of kepel pulp ethanol extract had no effect on the percentage anti-implantation effect and the number of and embrio resorbtion. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antiimplantation" title="antiimplantation">antiimplantation</a>, <a href="https://publications.waset.org/abstracts/search?q=fetus" title=" fetus"> fetus</a>, <a href="https://publications.waset.org/abstracts/search?q=Stelechocarpus%20burahol" title=" Stelechocarpus burahol"> Stelechocarpus burahol</a>, <a href="https://publications.waset.org/abstracts/search?q=flavonoid" title=" flavonoid"> flavonoid</a> </p> <a href="https://publications.waset.org/abstracts/31546/anti-implantation-activity-of-kepel-stelechocarpus-burahol-pulp-ethanol-extract-in-female-mice" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31546.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">436</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">1235</span> Effect of Nitrogen and Gibberellic Acid at Different Level and their Interaction on Calendula</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pragnyashree%20Mishra">Pragnyashree Mishra</a>, <a href="https://publications.waset.org/abstracts/search?q=Shradhanjali%20Mohapatra"> Shradhanjali Mohapatra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present investigation is carried out to know the effect of foliar feeding of nitrogen and gibberellic acid on vegetative growth, flowering behaviour and yield of calendula variety ‘Golden Emporer’. The experiment was laid out in RBD in rabi season of 2013-14. There are 16 treatments are taken at different level such as nitrogen (at 0%,1%,2%,3%) and GA3 (at 50 ppm,100ppm,150 ppm). Among them maximum height at bud initiation stage was obtained at 3% nitrogen (27.00 cm) and at 150 ppm GA3 (26.5 cm), fist flowering was obtained at 3% nitrogen(60.00 days) and at 150 ppm GA3 (63.75 days), maximum flower stalk length was obtained at 3% nitrogen(3.50 cm) and at 150 ppm GA3 (5.42 cm),maximum duration of flowering was obtained at 3% nitrogen(46.00 days) and at 150 ppm GA3 (46.50days), maximum number of flower was obtained at 3% nitrogen (89.00per plant) and at 150 ppm GA3 (83.50 per plant), maximum flower weight was obtained at 3% nitrogen(1.25 gm per flower) and at 150 ppm GA3 (1.50 gm per flower), maximum yield was was obtained at 3% nitrogen (110.00 gm per plant) and at 150 ppm GA3 (105.00gm per plant) and minimum of all character was obtained when 0% nitrogen0 ppm GA3. All interaction between nitrogen and GA3 was found in significant except the yield . <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=calendula" title="calendula">calendula</a>, <a href="https://publications.waset.org/abstracts/search?q=golden%20emporer" title=" golden emporer"> golden emporer</a>, <a href="https://publications.waset.org/abstracts/search?q=GA3" title=" GA3"> GA3</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20and%20gibberellic%20acid" title=" nitrogen and gibberellic acid "> nitrogen and gibberellic acid </a> </p> <a href="https://publications.waset.org/abstracts/19334/effect-of-nitrogen-and-gibberellic-acid-at-different-level-and-their-interaction-on-calendula" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19334.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">465</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">1234</span> Nitriding of Super-Ferritic Stainless Steel by Plasma Immersion Ion Implantation in Radio Frequency and Microwave Plasma System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20Bhuyan">H. Bhuyan</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20M%C3%A4ndl"> S. Mändl</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Favre"> M. Favre</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Cisternas"> M. Cisternas</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Henriquez"> A. Henriquez</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Wyndham"> E. Wyndham</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Walczak"> M. Walczak</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Manova"> D. Manova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The 470 Li-24 Cr and 460Li-21 Cr are two alloys belonging to the next generation of super-ferritic nickel free stainless steel grades, containing titanium (Ti), niobium (Nb) and small percentage of carbon (C) and nitrogen (N). The addition of Ti and Nb improves in general the corrosion resistance while the low interstitial content of C and N assures finer precipitates and greater ductility compared to conventional ferritic grades. These grades are considered an economic alternative to AISI 316L and 304 due to comparable or superior corrosion. However, since 316L and 304 can be nitrided to improve the mechanical surface properties like hardness and wear; it is hypothesize that the tribological properties of these super-ferritic stainless steels grades can also be improved by plasma nitriding. Thus two sets of plasma immersion ion implantation experiments have been carried out, one with a high pressure capacitively coupled radio frequency plasma at PUC Chile and the other using a low pressure microwave plasma at IOM Leipzig, in order to explore further improvements in the mechanical properties of 470 Li-24 Cr and 460Li-21 Cr steel. Nitrided and unnitrided substrates have been subsequently investigated using different surface characterization techniques including secondary ion mass spectroscopy, scanning electron microscopy, energy dispersive x-ray analysis, Vickers hardness, wear resistance, as well as corrosion test. In most of the characterizations no major differences have been observed for nitrided 470 Li-24 Cr and 460Li-21 Cr. Due to the ion bombardment, an increase in the surface roughness is observed for higher treatment temperature, independent of the steel types. The formation of chromium nitride compound takes place only at a treatment temperature around 4000C-4500C, or above. However, corrosion properties deteriorate after treatment at higher temperatures. The physical characterization results show up to 25 at.% of nitrogen for a diffusion zone of 4-6 m, and a 4-5 times increase in hardness for different experimental conditions. The samples implanted with temperature higher than 400 °C presented a wear resistance around two orders of magnitude higher than the untreated substrates. The hardness is apparently affected by the different roughness of the samples and their different profile of nitrogen. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ion%20implantation" title="ion implantation">ion implantation</a>, <a href="https://publications.waset.org/abstracts/search?q=plasma" title=" plasma"> plasma</a>, <a href="https://publications.waset.org/abstracts/search?q=RF%20and%20microwave%20plasma" title=" RF and microwave plasma"> RF and microwave plasma</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel" title=" stainless steel "> stainless steel </a> </p> <a href="https://publications.waset.org/abstracts/18559/nitriding-of-super-ferritic-stainless-steel-by-plasma-immersion-ion-implantation-in-radio-frequency-and-microwave-plasma-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18559.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">464</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">1233</span> Estimation of Foliar Nitrogen in Selected Vegetation Communities of Uttrakhand Himalayas Using Hyperspectral Satellite Remote Sensing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yogita%20Mishra">Yogita Mishra</a>, <a href="https://publications.waset.org/abstracts/search?q=Arijit%20Roy"> Arijit Roy</a>, <a href="https://publications.waset.org/abstracts/search?q=Dhruval%20Bhavsar"> Dhruval Bhavsar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study estimates the nitrogen concentration in selected vegetation community’s i.e. chir pine (pinusroxburghii) by using hyperspectral satellite data and also identified the appropriate spectral bands and nitrogen indices. The Short Wave InfraRed reflectance spectrum at 1790 nm and 1680 nm shows the maximum possible absorption by nitrogen in selected species. Among the nitrogen indices, log normalized nitrogen index performed positively and negatively too. The strong positive correlation is taken out from 1510 nm and 760 nm for the pinusroxburghii for leaf nitrogen concentration and leaf nitrogen mass while using NDNI. The regression value of R² developed by using linear equation achieved maximum at 0.7525 for the analysis of satellite image data and R² is maximum at 0.547 for ground truth data for pinusroxburghii respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hyperspectral" title="hyperspectral">hyperspectral</a>, <a href="https://publications.waset.org/abstracts/search?q=NDNI" title=" NDNI"> NDNI</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20concentration" title=" nitrogen concentration"> nitrogen concentration</a>, <a href="https://publications.waset.org/abstracts/search?q=regression%20value" title=" regression value"> regression value</a> </p> <a href="https://publications.waset.org/abstracts/74753/estimation-of-foliar-nitrogen-in-selected-vegetation-communities-of-uttrakhand-himalayas-using-hyperspectral-satellite-remote-sensing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74753.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">295</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">1232</span> Current Status of Nitrogen Saturation in the Upper Reaches of the Kanna River, Japan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sakura%20Yoshii">Sakura Yoshii</a>, <a href="https://publications.waset.org/abstracts/search?q=Masakazu%20Abe"> Masakazu Abe</a>, <a href="https://publications.waset.org/abstracts/search?q=Akihiro%20Iijima"> Akihiro Iijima</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nitrogen saturation has become one of the serious issues in the field of forest environment. The watershed protection forests located in the downwind hinterland of Tokyo Metropolitan Area are believed to be facing nitrogen saturation. In this study, we carefully focus on the balance of nitrogen between load and runoff. Annual nitrogen load via atmospheric deposition was estimated to 461.1 t-N/year in the upper reaches of the Kanna River. Annual nitrogen runoff to the forested headwater stream of the Kanna River was determined to 184.9 t-N/year, corresponding to 40.1% of the total nitrogen load. Clear seasonal change in NO3-N concentration was still observed. Therefore, watershed protection forest of the Kanna River is most likely to be in Stage-1 on the status of nitrogen saturation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=atmospheric%20deposition" title="atmospheric deposition">atmospheric deposition</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20accumulation" title=" nitrogen accumulation"> nitrogen accumulation</a>, <a href="https://publications.waset.org/abstracts/search?q=denitrification" title=" denitrification"> denitrification</a>, <a href="https://publications.waset.org/abstracts/search?q=forest%20ecosystems" title=" forest ecosystems"> forest ecosystems</a> </p> <a href="https://publications.waset.org/abstracts/3246/current-status-of-nitrogen-saturation-in-the-upper-reaches-of-the-kanna-river-japan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3246.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">276</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">1231</span> Association Between Advanced Parental Age and Implantation Failure: A Prospective Cohort Study in Anhui, China</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jiaqian%20Yin">Jiaqian Yin</a>, <a href="https://publications.waset.org/abstracts/search?q=Ruoling%20Chen"> Ruoling Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Churchill"> David Churchill</a>, <a href="https://publications.waset.org/abstracts/search?q=Huijuan%20Zou"> Huijuan Zou</a>, <a href="https://publications.waset.org/abstracts/search?q=Peipei%20Guo"> Peipei Guo</a>, <a href="https://publications.waset.org/abstracts/search?q=Chunmei%20Liang"> Chunmei Liang</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaoqing%20Peng"> Xiaoqing Peng</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhikang%20Zhang"> Zhikang Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Weiju%20Zhou"> Weiju Zhou</a>, <a href="https://publications.waset.org/abstracts/search?q=Yunxia%20Cao"> Yunxia Cao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Purpose: This study aimed to explore the interaction of male and female age on implantation failure from in vitro fertilisation (IVF)/ intracytoplasmic sperm injection (ICSI) treatments in couples following their first cycles using the Anhui Maternal-Child Health Study (AMCHS). Methods: The AMCHS recruited 2042 infertile couples who were physically fit for in vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI) treatment at the Reproductive Centre of the First Affiliated Hospital of Anhui Medical University between May 2017 to April 2021. This prospective cohort study analysed the data from 1910 cohort couples for the current paper data analysis. The multivariate logistic regression model was used to identify the effect of male and female age on implantation failure after controlling for confounding factors. Male age and female age were examined as continuous and categorical (male age: 20-<25, 25-<30, 30-<35, 35-<40, ≥40; female age: 20-<25, 25-<30, 30-<35, 35-<40, ≥40) predictors. Results: Logistic regression indicated that advanced maternal age was associated with increased implantation failure (P<0.001). There was evidence of an interaction between maternal age (30-<35 and ≥ 35) and paternal age (≥35) on implantation failure. (p<0.05). Only when the male was ≥35 years of increased maternal age was associated with the risk of implantation failure. Conclusion: In conclusion, there was an additive effect on implantation failure with advanced parental age. The impact of advanced maternal age was only seen in the older paternal age group. The delay of childbearing in both men and women will be a serious public issue that may contribute to a higher risk of implantation failure in patients needing assisted reproductive technology (ART). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=parental%20age" title="parental age">parental age</a>, <a href="https://publications.waset.org/abstracts/search?q=infertility" title=" infertility"> infertility</a>, <a href="https://publications.waset.org/abstracts/search?q=cohort%20study" title=" cohort study"> cohort study</a>, <a href="https://publications.waset.org/abstracts/search?q=IVF" title=" IVF"> IVF</a> </p> <a href="https://publications.waset.org/abstracts/156793/association-between-advanced-parental-age-and-implantation-failure-a-prospective-cohort-study-in-anhui-china" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156793.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">154</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">1230</span> Complications and Outcomes of Cochlear Implantation in Children Younger than 12 Months: A Multicenter Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alimohamad%20Asghari">Alimohamad Asghari</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20Daneshi"> Ahmad Daneshi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Farhadi"> Mohammad Farhadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Arash%20Bayat"> Arash Bayat</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Ajalloueyan"> Mohammad Ajalloueyan</a>, <a href="https://publications.waset.org/abstracts/search?q=Marjan%20Mirsalehi"> Marjan Mirsalehi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohsen%20Rajati"> Mohsen Rajati</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Basir%20Hashemi"> Seyed Basir Hashemi</a>, <a href="https://publications.waset.org/abstracts/search?q=Nader%20Saki"> Nader Saki</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Omidvari"> Ali Omidvari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Evidence suggests that Cochlear Implantation (CI) is a beneficial approach for auditory and speech skills improvement in children with severe to profound hearing loss. However, it remains controversial if implantation in children <12 months is safe and effective compared to older children. The present study aimed to determine whether children's ages affect surgical complications and auditory and speech development. The current multicenter study enrolled 86 children who underwent CI surgery at <12 months of age (group A) and 362 children who underwent implantation between 12 and 24 months of age (group B). The Categories of Auditory Performance (CAP) and Speech Intelligibility Rating (SIR) scores were determined pre-impanation, and "one-year" and "two-year" post-implantation. Four complications (overall rate: 4.65%; three minor) occurred in group A and 12 complications (overall rate: 4.41%; nine minor) occurred in group B. We found no statistically significant difference in the complication rates between the groups (p>0.05). The mean SIR and CAP scores improved over time following CI activation in both groups. However, we did not find significant differences in CAP and SIR scores between the groups across different time points. Cochlear implantation is a safe and efficient procedure in children younger than 12 months, providing substantial auditory and speech benefits comparable to children undergoing implantation at 12 to 24 months of age. Furthermore, surgical complications in younger children are similar to those of children undergoing the CI at an older age. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cochlear%20implant" title="cochlear implant">cochlear implant</a>, <a href="https://publications.waset.org/abstracts/search?q=Infant" title=" Infant"> Infant</a>, <a href="https://publications.waset.org/abstracts/search?q=complications" title=" complications"> complications</a>, <a href="https://publications.waset.org/abstracts/search?q=outcome" title=" outcome"> outcome</a> </p> <a href="https://publications.waset.org/abstracts/156417/complications-and-outcomes-of-cochlear-implantation-in-children-younger-than-12-months-a-multicenter-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156417.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">108</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">1229</span> Mineral Nitrogen Retention, Nitrogen Availability and Plant Growth in the Soil Influenced by Addition of Organic and Mineral Fertilizers: Lysimetric Experiment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Luk%C3%A1%C5%A1%20Plo%C5%A1ek">Lukáš Plošek</a>, <a href="https://publications.waset.org/abstracts/search?q=Jaroslav%20Hyn%C5%A1t"> Jaroslav Hynšt</a>, <a href="https://publications.waset.org/abstracts/search?q=Jaroslav%20Z%C3%A1hora"> Jaroslav Záhora</a>, <a href="https://publications.waset.org/abstracts/search?q=Jakub%20Elbl"> Jakub Elbl</a>, <a href="https://publications.waset.org/abstracts/search?q=Anton%C3%ADn%20Kintl"> Antonín Kintl</a>, <a href="https://publications.waset.org/abstracts/search?q=Ivana%20Charousov%C3%A1"> Ivana Charousová</a>, <a href="https://publications.waset.org/abstracts/search?q=Silvia%20Kov%C3%A1csov%C3%A1"> Silvia Kovácsová</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Compost can influence soil fertility and plant health. At the same time compost can play an important role in the nitrogen cycle and it can influence leaching of mineral nitrogen from soil to underground water. This paper deals with the influence of compost addition and mineral nitrogen fertilizer on leaching of mineral nitrogen, nitrogen availability in microbial biomass and plant biomass production in the lysimetric experiment. Twenty-one lysimeters were filed with topsoil and subsoil collected in the area of protection zone of underground source of drinking water - Březová nad Svitavou. The highest leaching of mineral nitrogen was detected in the variant fertilized only mineral nitrogen fertilizer (624.58 mg m-2), the lowest leaching was recorded in the variant with high addition of compost (315.51 mg m-2). On the other hand, losses of mineral nitrogen are not in connection with the losses of available form of nitrogen in microbial biomass. Because loss of mineral nitrogen was detected in variant with the least change in the availability of N in microbial biomass. The leaching of mineral nitrogen, yields as well as the results concerning nitrogen availability from the first year of long term experiment suggest that compost can positive influence the leaching of nitrogen into underground water. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nitrogen" title="nitrogen">nitrogen</a>, <a href="https://publications.waset.org/abstracts/search?q=compost" title=" compost"> compost</a>, <a href="https://publications.waset.org/abstracts/search?q=biomass%20production" title=" biomass production"> biomass production</a>, <a href="https://publications.waset.org/abstracts/search?q=lysimeter" title=" lysimeter "> lysimeter </a> </p> <a href="https://publications.waset.org/abstracts/7531/mineral-nitrogen-retention-nitrogen-availability-and-plant-growth-in-the-soil-influenced-by-addition-of-organic-and-mineral-fertilizers-lysimetric-experiment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7531.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">352</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1228</span> Minimal Incision Cochlear Implantation in Congenital Abnormality: A Case Report</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Munish%20Saroch">Munish Saroch</a>, <a href="https://publications.waset.org/abstracts/search?q=Amit%20Saini"> Amit Saini</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Many children with congenital malformation of inner ear have undergone cochlear implant (CI) surgery. The results for cochlear implant surgery in these children are very encouraging and provide a ray of hope for these patients. Objective: The main objective of this presentation is to prove that even in Mondini’s deformity Minimal incision cochlear implantation improves cosmesis, reduces post-operative infection and earliest switch on of device. Methods: We report a case of two-year-old child suffering from Mondini’s deformity who underwent CI with minimal incision cochlear implantation (MICI). MICI has been developed with the aims of reducing the impact of surgery on the patient without any preoperative shaving of hairs. Results: Patient after surgery with MICI showed better looking postauricular scar, low post-operative morbidity in comparison to conventional wider access approach and hence earliest switch on of device (1st post operative day). Conclusion: We are of opinion that MICI is safe and successful in Mondini’s deformity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CI" title="CI">CI</a>, <a href="https://publications.waset.org/abstracts/search?q=Cochlear%20Implant" title=" Cochlear Implant"> Cochlear Implant</a>, <a href="https://publications.waset.org/abstracts/search?q=MICI" title=" MICI"> MICI</a>, <a href="https://publications.waset.org/abstracts/search?q=Minimal%20Incision%20Cochlear%20Implantation" title=" Minimal Incision Cochlear Implantation"> Minimal Incision Cochlear Implantation</a>, <a href="https://publications.waset.org/abstracts/search?q=HL" title=" HL"> HL</a>, <a href="https://publications.waset.org/abstracts/search?q=Hearing%20Loss" title=" Hearing Loss"> Hearing Loss</a>, <a href="https://publications.waset.org/abstracts/search?q=HRCT" title=" HRCT"> HRCT</a>, <a href="https://publications.waset.org/abstracts/search?q=High%20Resolution%20Computer%20Tomography" title=" High Resolution Computer Tomography"> High Resolution Computer Tomography</a>, <a href="https://publications.waset.org/abstracts/search?q=MRI" title=" MRI"> MRI</a>, <a href="https://publications.waset.org/abstracts/search?q=Magnetic%20resonance%20imaging" title=" Magnetic resonance imaging"> Magnetic resonance imaging</a>, <a href="https://publications.waset.org/abstracts/search?q=SCI" title=" SCI"> SCI</a>, <a href="https://publications.waset.org/abstracts/search?q=Standard%20cochlear%20implantation" title=" Standard cochlear implantation"> Standard cochlear implantation</a> </p> <a href="https://publications.waset.org/abstracts/46030/minimal-incision-cochlear-implantation-in-congenital-abnormality-a-case-report" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46030.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">216</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">1227</span> Use of Chlorophyll Meters to Assess In-Season Wheat Nitrogen Fertilizer Requirements in the Southern San Joaquin Valley</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Brian%20Marsh">Brian Marsh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nitrogen fertilizer is the most used and often the most mismanaged nutrient input. Nitrogen management has tremendous implications on crop productivity, quality and environmental stewardship. Sufficient nitrogen is needed to optimum yield and quality. Soil and in-season plant tissue testing for nitrogen status are a time consuming and expensive process. Real time sensing of plant nitrogen status can be a useful tool in managing nitrogen inputs. The objectives of this project were to assess the reliability of remotely sensed non-destructive plant nitrogen measurements compared to wet chemistry data from sampled plant tissue, develop in-season nitrogen recommendations based on remotely sensed data for improved nitrogen use efficiency and assess the potential for determining yield and quality from remotely sensed data. Very good correlations were observed between early-season remotely sensed crop nitrogen status and plant nitrogen concentrations and subsequent in-season fertilizer recommendations. The transmittance/absorbance type meters gave the most accurate readings. Early in-season fertilizer recommendation would be to apply 40 kg nitrogen per hectare plus 16 kg nitrogen per hectare for each unit difference measured with the SPAD meter between the crop and reference area or 25 kg plus 13 kg per hectare for each unit difference measured with the CCM 200. Once the crop was sufficiently fertilized meter readings became inconclusive and were of no benefit for determining nitrogen status, silage yield and quality and grain yield and protein. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wheat" title="wheat">wheat</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20fertilization" title=" nitrogen fertilization"> nitrogen fertilization</a>, <a href="https://publications.waset.org/abstracts/search?q=chlorophyll%20meter" title=" chlorophyll meter"> chlorophyll meter</a> </p> <a href="https://publications.waset.org/abstracts/18164/use-of-chlorophyll-meters-to-assess-in-season-wheat-nitrogen-fertilizer-requirements-in-the-southern-san-joaquin-valley" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18164.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">393</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1226</span> Disease Characteristics of Neurofibromatosis Type II and Cochlear Implantation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Boxiang%20Zhuang">Boxiang Zhuang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study analyzes the clinical manifestations, hearing rehabilitation methods and outcomes of a complex case of neurofibromatosis type II (NF2). Methods: The clinical manifestations, medical history, clinical data, surgical methods and postoperative hearing rehabilitation outcomes of an NF2 patient were analyzed to determine the hearing reconstruction method and postoperative effect for a special type of NF2 acoustic neuroma. Results: The patient had bilateral acoustic neuromas with profound sensorineural hearing loss in both ears. Peripheral blood genetic testing did not reveal pathogenic gene mutations, suggesting mosaicism. The patient had an intracochlear schwannoma in the right ear and severely impaired vision in both eyes. Cochlear implantation with tumor retention was performed in the right ear. After 2 months of family-based auditory and speech rehabilitation, the Categories of Auditory Performance (CAP) score improved from 0 to 5. Conclusion: NF2 has complex clinical manifestations and poor prognosis. For NF2 patients with intracochlear tumors, cochlear implantation with tumor retention can be used to reconstruct hearing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=NF2" title="NF2">NF2</a>, <a href="https://publications.waset.org/abstracts/search?q=intracochlear%20schwannoma" title=" intracochlear schwannoma"> intracochlear schwannoma</a>, <a href="https://publications.waset.org/abstracts/search?q=hearing%20reconstruction" title=" hearing reconstruction"> hearing reconstruction</a>, <a href="https://publications.waset.org/abstracts/search?q=cochlear%20implantation" title=" cochlear implantation"> cochlear implantation</a> </p> <a href="https://publications.waset.org/abstracts/192539/disease-characteristics-of-neurofibromatosis-type-ii-and-cochlear-implantation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/192539.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">13</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">1225</span> Warning about the Risk of Blood Flow Stagnation after Transcatheter Aortic Valve Implantation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aymen%20Laadhari">Aymen Laadhari</a>, <a href="https://publications.waset.org/abstracts/search?q=G%C3%A1bor%20Sz%C3%A9kely"> Gábor Székely</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work, the hemodynamics in the sinuses of Valsalva after Transcatheter Aortic Valve Implantation is numerically examined. We focus on the physical results in the two-dimensional case. We use a finite element methodology based on a Lagrange multiplier technique that enables to couple the dynamics of blood flow and the leaflets’ movement. A massively parallel implementation of a monolithic and fully implicit solver allows more accuracy and significant computational savings. The elastic properties of the aortic valve are disregarded, and the numerical computations are performed under physiologically correct pressure loads. Computational results depict that blood flow may be subject to stagnation in the lower domain of the sinuses of Valsalva after Transcatheter Aortic Valve Implantation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hemodynamics" title="hemodynamics">hemodynamics</a>, <a href="https://publications.waset.org/abstracts/search?q=simulations" title=" simulations"> simulations</a>, <a href="https://publications.waset.org/abstracts/search?q=stagnation" title=" stagnation"> stagnation</a>, <a href="https://publications.waset.org/abstracts/search?q=valve" title=" valve"> valve</a> </p> <a href="https://publications.waset.org/abstracts/63534/warning-about-the-risk-of-blood-flow-stagnation-after-transcatheter-aortic-valve-implantation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63534.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">291</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">1224</span> Gel-Based Autologous Chondrocyte Implantation (GACI) in the Knee: Multicentric Short Term Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shaival%20Dalal">Shaival Dalal</a>, <a href="https://publications.waset.org/abstracts/search?q=Nilesh%20Shah"> Nilesh Shah</a>, <a href="https://publications.waset.org/abstracts/search?q=Dinshaw%20Pardiwala"> Dinshaw Pardiwala</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Rajan"> David Rajan</a>, <a href="https://publications.waset.org/abstracts/search?q=Satyen%20Sanghavi"> Satyen Sanghavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Charul%20Bhanji"> Charul Bhanji</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Autologous Chondrocyte Implantation (ACI) is used worldwide since 1998 to treat cartilage defect. GEL based ACI is a new tissue-engineering technique to treat full thickness cartilage defect with fibrin and thrombin as scaffold for chondrocytes. Purpose of this study is to see safety and efficacy of gel based ACI for knee cartilage defect in multiple centres with different surgeons. Gel-based Autologous Chondrocyte Implantation (GACI) has shown effectiveness in treating isolated cartilage defect of knee joint. Long term results are still needed to be studied. This study was followed-up up to two years and showed benefit to patients. All enrolled patients with a mean age of 28.5 years had an average defect size of3 square centimeters, and were grade IV as per ICRS grading. All patients were followed up several times and at several intervals at 6th week, 8th week, 11th week, 17th week, 29th week, 57th week after surgery. The outcomes were measured based on the IKDC (subjective and objective) and MOCART scores. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=knee" title="knee">knee</a>, <a href="https://publications.waset.org/abstracts/search?q=chondrocyte" title=" chondrocyte"> chondrocyte</a>, <a href="https://publications.waset.org/abstracts/search?q=autologous%20chondrocyte%20implantation" title=" autologous chondrocyte implantation"> autologous chondrocyte implantation</a>, <a href="https://publications.waset.org/abstracts/search?q=fibrin%20gel%20based" title=" fibrin gel based"> fibrin gel based</a> </p> <a href="https://publications.waset.org/abstracts/27001/gel-based-autologous-chondrocyte-implantation-gaci-in-the-knee-multicentric-short-term-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27001.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">380</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">1223</span> Plasma-Assisted Nitrogen Fixation for the Elevation of Seed Germination and Plant Growth</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pradeep%20Lamichhane">Pradeep Lamichhane</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Plasma-assisted nitrogen fixation is a process by which atomic nitrogen generated by plasma is converted into ammonia (NH₃) or related nitrogenous compounds. Nitrogen fixation is essential to plant because fixed inorganic nitrogen compounds are required to them for the biosynthesis of all nitrogen-containing organic compounds, such as amino acids and proteins, nucleoside triphosphates and nucleic acid. Most of our atmosphere is composed of nitrogen; however, the plant cannot absorb it directly from the air ambient. As a portion of the nitrogen cycle, nitrogen fixation fundamental for agriculture and the manufacture of fertilizer. In this study, plasma-assisted nitrogen fixation was performed by exposing a non-thermal atmospheric pressure nitrogen plasma generated a sinusoidal power supply (with an applied voltage of 10 kV and frequency of 33 kHz) on a water surface. Besides this, UV excitation of water molecules at the water interface was also done in order to disassociate water. Hydrogen and hydroxyl radical obtained from this UV photolysis electrochemically combine with nitrogen atom obtained from plasma. As a result of this, nitrogen fixation on plasma-activated water (PAW) significantly enhanced. The amount of nitrogen-based products like NOₓ and ammonia (NH₃) synthesized by this combined process of UV and plasma are 1.4 and 2.8 times higher than those obtained by plasma alone. In every 48 hours, 20 ml of plasma-activated water (pH≈3.15) for 10 minutes with moderate concentrations of NOₓ, NH₃ and hydrogen peroxide (H₂O₂) was irrigated on each corn plant (Zea Mays). It was found that the PAW has shown a significant impact on seeds germination rate and improved seedling growth. The result obtained from this experiment suggested that crop yield could increase in a short duration. In the future, this experiment could open boundless opportunities in plasma agriculture to mobilize nitrogen because nitrite, nitrate, and ammonia are more suitable for plant uptake. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=plasma-assisted%20nitrogen%20fixation" title="plasma-assisted nitrogen fixation">plasma-assisted nitrogen fixation</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20plasma" title=" nitrogen plasma"> nitrogen plasma</a>, <a href="https://publications.waset.org/abstracts/search?q=UV%20excitation%20of%20water" title=" UV excitation of water"> UV excitation of water</a>, <a href="https://publications.waset.org/abstracts/search?q=ammonia%20synthesis" title=" ammonia synthesis"> ammonia synthesis</a> </p> <a href="https://publications.waset.org/abstracts/118194/plasma-assisted-nitrogen-fixation-for-the-elevation-of-seed-germination-and-plant-growth" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/118194.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">1222</span> Modeling of Nitrogen Solubility in Stainless Steel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saeed%20Ghali">Saeed Ghali</a>, <a href="https://publications.waset.org/abstracts/search?q=Hoda%20El-Faramawy"> Hoda El-Faramawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Mamdouh%20Eissa"> Mamdouh Eissa</a>, <a href="https://publications.waset.org/abstracts/search?q=Michael%20Mishreky"> Michael Mishreky</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Scale-resistant austenitic stainless steel, X45CrNiW 18-9, has been developed, and modified steels produced through partial and total nickel replacement by nitrogen. These modified steels were produced in a 10 kg induction furnace under different nitrogen pressures and were cast into ingots. The produced modified stainless steels were forged, followed by air cooling. The phases of modified stainless steels have been investigated using the Schaeffler diagram, dilatometer, and microstructure observations. Both partial and total replacement of nickel using 0.33-0.50% nitrogen are effective in producing fully austenitic stainless steels. The nitrogen contents were determined and compared with those calculated using the Institute of Metal Science (IMS) equation. The results showed great deviations between the actual nitrogen contents and predicted values through IMS equation. So, an equation has been derived based on chemical composition, pressure, and temperature at 1600oC. [N%] = 0.0078 + 0.0406*X, where X is a function of chemical composition and nitrogen pressure. The derived equation has been used to calculate the nitrogen content of different steels using published data. The results reveal the difficulty of deriving a general equation for the prediction of nitrogen content covering different steel compositions. So, it is necessary to use a narrow composition range. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solubility" title="solubility">solubility</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen" title=" nitrogen"> nitrogen</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel" title=" stainless steel"> stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=Schaeffler" title=" Schaeffler"> Schaeffler</a> </p> <a href="https://publications.waset.org/abstracts/155322/modeling-of-nitrogen-solubility-in-stainless-steel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/155322.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">238</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">1221</span> Effect of Nitrogen Management on Nitrogen Uptake, Dry Matter Production and Some Yield Parameters</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mandana%20Tayefe">Mandana Tayefe</a>, <a href="https://publications.waset.org/abstracts/search?q=Ebrahim%20Amiri"> Ebrahim Amiri</a>, <a href="https://publications.waset.org/abstracts/search?q=Azin%20Nasrollah%20Zade"> Azin Nasrollah Zade</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Effect of nitrogen (N) fertilizer levels on nitrogen uptake, dry matter production, yield and some yield components of rice (Hashemi, Kazemi, Khazar) was investigated in an experiment as factorial in RCBD with 3 replications in a paddy light soil at Guilan province, Iran, 2008-2009. In this experiment, four treatments including: N1-control (no N fertilizer); N2- 30 kgN/ha; N3- 60 kgN/ha; N4- 90 kgN/ha were compared. Results showed that total biomass (8386 kg/ha), grain yield (3662 kg/ha), panicles m-2 (235.8) and total grain per panicle (103.8) were reached the highest value at high nitrogen level. Among the varieties the highest total biomass (7734 kg/ha), grain yield (3414 kg/ha) and total grain per panicle (78.2) belonged to Khazar. Dry matter, total N uptake was varied in different cultivars significantly and Khazar variety had the highest contents. Total biomass and total N uptake was varied significantly with the increasement of the amount of nitrogen applied. As total biomass and total N uptake increased with increasing in N fertilizing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rice" title="rice">rice</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen" title=" nitrogen"> nitrogen</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20uptake" title=" nitrogen uptake"> nitrogen uptake</a>, <a href="https://publications.waset.org/abstracts/search?q=dry%20matter" title=" dry matter"> dry matter</a> </p> <a href="https://publications.waset.org/abstracts/27769/effect-of-nitrogen-management-on-nitrogen-uptake-dry-matter-production-and-some-yield-parameters" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27769.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">417</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">1220</span> The Effect of Nitrogen Fertilizer Use Efficiency in Corn Yield and Yield Components in Cultivars KSC 704</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elham%20Bagherzadeh">Elham Bagherzadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Fadaee"> Mohammad Fadaee</a>, <a href="https://publications.waset.org/abstracts/search?q=Rouhollah%20Keykhosravi"> Rouhollah Keykhosravi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In order to survey the nitrogen use efficiency in corn, the experimental plot in a randomized complete block design 2014 agricultural farm was Islamic Azad University of Karaj. The main factor was four levels of nitrogen fertilizer (respectively control, 150, 200 and 250 kg nitrogen fertilizer) and subplots consisted two levels of superabsorbent polymer Stockosorb (use, do not use). Analysis of variance is showed that different nitrogen levels and different superabsorbent of levels statistically significant. Comparisons average also showed there is a significant difference between use and non-use of superabsorbent. The results showed the interactions nitrogen and SAP by one percent level has a significant and effect on Fresh weight per plant, plant dry weight, biological yield, harvest index, cob diameter, cob dry weight, leaf width, leaf area were at the level of five percent statistical significant effect on Ear weight and grain yield. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=corn" title="corn">corn</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen" title=" nitrogen"> nitrogen</a>, <a href="https://publications.waset.org/abstracts/search?q=comparison" title=" comparison"> comparison</a>, <a href="https://publications.waset.org/abstracts/search?q=biological%20yield" title=" biological yield"> biological yield</a> </p> <a href="https://publications.waset.org/abstracts/45828/the-effect-of-nitrogen-fertilizer-use-efficiency-in-corn-yield-and-yield-components-in-cultivars-ksc-704" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45828.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">358</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">1219</span> Effects of Chemical and Biological Fertilizer on, Yield, Nitrogen Uptake and Nitrogen Harvest Index of Rice</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Azin%20Nasrollah%20Zadeh">Azin Nasrollah Zadeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A factorial experiment was applied to evaluate the effect of chemical and biological fertilizer on yield, total nitrogen uptake and NHI of rice. Four biological treatments including:(M1:no fertilizer),( M2:10 ton/ha cow dung ),(M3:20 ton/ha cow dung) and (M4:5 ton/ha azolla compost) and four chemical fertilizer treatments including: (S1: no fertilizer),(S2:40 kg N /ha),(S3:60 kg N /ha) and ( S4:80 kg N /ha ) were compared. Results showed that highest rate of yield (3387 kg/ha) and total nitrogen uptake (81.4 kg/ha) were reached the highest value at M4. Among the chemical fertilizers the highest grain yield (3373 kg/ha) and total nitrogen uptake (87.7) belonged to highest nitrogen level (S4).Also biological and chemical fertilizers were no significant on Harvest index (NHI). Interaction effect of chemical × biological fertilizers didn't show significant difference between all parameters except of yield, as the most grain yield were obtained in M4S4. So it can be concluded that using of bioilogical fertilizers at appropriate rate and type, considering plant requirement, may improve grain yield, nitrogen uptake and use efficiency in rice. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=azolla" title="azolla">azolla</a>, <a href="https://publications.waset.org/abstracts/search?q=fertilizer" title=" fertilizer"> fertilizer</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20uptake" title=" nitrogen uptake"> nitrogen uptake</a>, <a href="https://publications.waset.org/abstracts/search?q=rice" title=" rice"> rice</a>, <a href="https://publications.waset.org/abstracts/search?q=yield" title=" yield"> yield</a> </p> <a href="https://publications.waset.org/abstracts/28466/effects-of-chemical-and-biological-fertilizer-on-yield-nitrogen-uptake-and-nitrogen-harvest-index-of-rice" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28466.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">296</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">1218</span> Fast-Modulated Surface-Confined Plasma for Catalytic Nitrogen Fixation and Energy Intensification</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pradeep%20Lamichhane">Pradeep Lamichhane</a>, <a href="https://publications.waset.org/abstracts/search?q=Nima%20Pourali"> Nima Pourali</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20V.%20Rebrov"> E. V. Rebrov</a>, <a href="https://publications.waset.org/abstracts/search?q=Volker%20Hessel"> Volker Hessel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nitrogen fixation is critical for plants for the biosynthesis of protein and nucleic acid. Most of our atmosphere is nitrogen, yet plants cannot directly absorb it from the air, and natural nitrogen fixation is insufficient to meet the demands. This experiment used a fast-modulated surface-confined atmospheric pressure plasma created by a 6 kV (peak-peak) sinusoidal power source with a repetition frequency of 68 kHz to fix nitrogen. Plasmas have been proposed for excitation of nitrogen gas, which quickly oxidised to NOX. With different N2/O2 input ratios, the rate of NOX generation was investigated. The rate of NOX production was shown to be optimal for mixtures of 60–70% O2 with N2. To boost NOX production in plasma, metal oxide catalysts based on TiO2 were coated over the dielectric layer of a reactor. These results demonstrate that nitrogen activation was more advantageous in surface-confined plasma sources because micro-discharges formed on the sharp edges of the electrodes, which is a primary function attributed to NOX synthesis and is further enhanced by metal oxide catalysts. The energy-efficient and sustainable NOX synthesis described in this study will offer a fresh perspective for ongoing research on green nitrogen fixation techniques. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20fixation" title="nitrogen fixation">nitrogen fixation</a>, <a href="https://publications.waset.org/abstracts/search?q=fast-modulated" title=" fast-modulated"> fast-modulated</a>, <a href="https://publications.waset.org/abstracts/search?q=surface-confined" title=" surface-confined"> surface-confined</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable" title=" sustainable"> sustainable</a> </p> <a href="https://publications.waset.org/abstracts/154873/fast-modulated-surface-confined-plasma-for-catalytic-nitrogen-fixation-and-energy-intensification" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/154873.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">107</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">1217</span> Nitrogen-Doped Ultrananocrystalline Diamond/Hydrogenated Amorphous Carbon Composite Films Prepared by Coaxial Arc Plasma Deposition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelrahman%20Zkria">Abdelrahman Zkria</a>, <a href="https://publications.waset.org/abstracts/search?q=Tsuyoshi%20Yoshitake"> Tsuyoshi Yoshitake</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Diamond is one of the most interesting semiconducting carbon materials owing to its unique physical and chemical properties, yet its application in electronic devices is limited due to the difﬁculty of realizing n-type conduction by nitrogen doping. In contrast Ultrananocrystalline diamond with diamond grains of about 3–5 nm in diameter have attracted much attention for device-oriented applications because they may enable the realization of n-type doping with nitrogen. In this study, nitrogen-doped Ultra-Nanocrystalline diamond films were prepared by coaxial arc plasma deposition (CAPD) method, the nitrogen content was estimated by X-ray photoemission spectroscopy (XPS). The electrical conductivity increased with increasing nitrogen contents. Heterojunction diodes with p-type Si were fabricated and evaluated based on current–voltage (I–V) and capacitance–voltage (C–V) characteristics measured in dark at room temperature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heterojunction%20diodes" title="heterojunction diodes">heterojunction diodes</a>, <a href="https://publications.waset.org/abstracts/search?q=hopping%20conduction%20mechanism" title=" hopping conduction mechanism"> hopping conduction mechanism</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen-doping" title=" nitrogen-doping"> nitrogen-doping</a>, <a href="https://publications.waset.org/abstracts/search?q=ultra-nanocrystalline%20diamond" title=" ultra-nanocrystalline diamond"> ultra-nanocrystalline diamond</a> </p> <a href="https://publications.waset.org/abstracts/44205/nitrogen-doped-ultrananocrystalline-diamondhydrogenated-amorphous-carbon-composite-films-prepared-by-coaxial-arc-plasma-deposition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44205.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">303</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">1216</span> Divalent Iron Oxidative Process for Degradation of Carbon and Nitrogen Based Pollutants from Dye Intermediate Industrial Wastewater</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nibedita%20Pani">Nibedita Pani</a>, <a href="https://publications.waset.org/abstracts/search?q=Vishnu%20Tejani"> Vishnu Tejani</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20S.%20Anantha%20Singh"> T. S. Anantha Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Water pollution resulting from discharge of partial/not treated textile wastewater containing high carbon and nitrogen pollutants pose a huge threat to the environment, ecosystem, and human health. It is essential to remove carbon- and nitrogen-based organic pollutants more effectively from industrial wastewater before discharging. The present study focuses on removal of carbon-based pollutant in particular COD (chemical oxygen demand) and nitrogen-based pollutants, in particular, ammoniacal nitrogen by Fenton oxidation process using Fe²⁺ and H₂O₂ as reagents. The study was carried out with high strength wastewater containing initial COD 5632 mg/L and NH⁴⁺-N 1372 mg/L. The major operating condition like pH was varied between 1.0 to 4.0. The maximum degradation was obtained at pH 3.0 taking the molar ratio of Fe²⁺/H₂O₂ as 1:1. At this pH, the removal efficiencies of COD and ammoniacal nitrogen were found to be 77.27% and 74.9%, respectively. The Fenton process can be the best alternative for the simultaneous removal of COD and NH4+-N from industrial wastewater. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ammoniacal%20nitrogen" title="ammoniacal nitrogen">ammoniacal nitrogen</a>, <a href="https://publications.waset.org/abstracts/search?q=COD" title=" COD"> COD</a>, <a href="https://publications.waset.org/abstracts/search?q=Fenton%20oxidation" title=" Fenton oxidation"> Fenton oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=industrial%20wastewater" title=" industrial wastewater"> industrial wastewater</a> </p> <a href="https://publications.waset.org/abstracts/92225/divalent-iron-oxidative-process-for-degradation-of-carbon-and-nitrogen-based-pollutants-from-dye-intermediate-industrial-wastewater" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/92225.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">204</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">1215</span> Removal of Nitrogen Compounds from Industrial Wastewater Using Sequencing Batch Reactor: The Effects of React Time</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ali%20W.%20Alattabi">Ali W. Alattabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Khalid%20S.%20Hashim"> Khalid S. Hashim</a>, <a href="https://publications.waset.org/abstracts/search?q=Hassnen%20M.%20Jafer"> Hassnen M. Jafer</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Alzeyadi"> Ali Alzeyadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was performed to optimise the react time (RT) and study its effects on the removal rates of nitrogen compounds in a sequencing batch reactor (SBR) treating synthetic industrial wastewater. The results showed that increasing the RT from 4 h to 10, 16 and 22 h significantly improved the nitrogen compounds’ removal efficiency, it was increased from 69.5% to 95%, 75.7 to 97% and from 54.2 to 80.1% for NH<sub>3</sub>-N, NO<sub>3</sub>-N and NO<sub>2</sub>-N respectively. The results obtained from this study showed that the RT of 22 h was the optimum for nitrogen compounds removal efficiency. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ammonia-nitrogen" title="ammonia-nitrogen">ammonia-nitrogen</a>, <a href="https://publications.waset.org/abstracts/search?q=retention%20time" title=" retention time"> retention time</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrate" title=" nitrate"> nitrate</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrite" title=" nitrite"> nitrite</a>, <a href="https://publications.waset.org/abstracts/search?q=sequencing%20batch%20reactor" title=" sequencing batch reactor"> sequencing batch reactor</a>, <a href="https://publications.waset.org/abstracts/search?q=sludge%20characteristics" title=" sludge characteristics"> sludge characteristics</a> </p> <a href="https://publications.waset.org/abstracts/54965/removal-of-nitrogen-compounds-from-industrial-wastewater-using-sequencing-batch-reactor-the-effects-of-react-time" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54965.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">363</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=nitrogen%20ion%20implantation&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=nitrogen%20ion%20implantation&page=3">3</a></li> <li class="page-item"><a class="page-link" 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