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Search results for: edible coating

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text-center" style="font-size:1.6rem;">Search results for: edible coating</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">811</span> Optimization of Machining Parameters in AlSi/10%AlN Metal Matrix Composite Material by TiN Coating Insert</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nurul%20Na%27imy%20Wan">Nurul Na&#039;imy Wan</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamad%20Sazali%20Said"> Mohamad Sazali Said</a>, <a href="https://publications.waset.org/abstracts/search?q=Jaharah%20Ab.%20Ghani"> Jaharah Ab. Ghani</a>, <a href="https://publications.waset.org/abstracts/search?q=Rusli%20Othman"> Rusli Othman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents the surface roughness of the aluminium silicon alloy (AlSi) matrix composite which has been reinforced with aluminium nitride (AlN). Experiments were conducted at various cutting speeds, feed rates, and depths of cut, according to a standard orthogonal array L27 of Taguchi method using TiN coating tool of insert. The signal-to-noise (S/N) ratio and analysis of variance are applied to study the characteristic performance of cutting speeds, feed rates and depths of cut in measuring the surface roughness during the milling operation. The surface roughness was observed using Mitutoyo Formtracer CS-500 and analyzed using the Taguchi method. From the Taguchi analysis, it was found that cutting speed of 230 m/min, feed rate of 0.4 mm/tooth, depth of cut of 0.3 mm were the optimum machining parameters using TiN coating insert. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AlSi%2FAlN%20metal%20matrix%20composite%20%28MMC%29" title="AlSi/AlN metal matrix composite (MMC)">AlSi/AlN metal matrix composite (MMC)</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20roughness" title=" surface roughness"> surface roughness</a>, <a href="https://publications.waset.org/abstracts/search?q=Taguchi%20method" title=" Taguchi method"> Taguchi method</a>, <a href="https://publications.waset.org/abstracts/search?q=machining%20parameters" title=" machining parameters"> machining parameters</a> </p> <a href="https://publications.waset.org/abstracts/7183/optimization-of-machining-parameters-in-alsi10aln-metal-matrix-composite-material-by-tin-coating-insert" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7183.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">432</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">810</span> CI Engine Performance Analysis Using Sunflower and Peanut Bio-Diesel Blends</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Manjunath">M. Manjunath</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Rakesh"> R. Rakesh</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20T.%20Krishne%20Gowda"> Y. T. Krishne Gowda</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20Panduranga%20Murthy"> G. Panduranga Murthy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The availability of energy resources plays a vital role in the progress of a country. Over the last decades, there is an increase in the consumption of energy worldwide resulting in the depletion of fossil fuels. This necessitates dependency on other countries for energy resources. Therefore, a renewable eco-friendly alternate fuel is replaced in place of fossil fuel which can be vegetable oils as a substitute fuel for diesel. Since oils are more viscous it cannot be used directly in CI engines without any engine modification. Thus, a conversion of vegetable oils to biodiesel is done by a Transesterification process. The present paper is restricted to Biofuel substitute for diesel and which can be obtained from a number of edible and non-edible oil resources. The oil from these resources can be Transesterified by a suitable method depending on its FFA content for the production of biodiesel and that can be used to operate CI engine. In this work, an attempt is made to test the performance of CI engine using Transesterified peanut and sunflower oil methyl esters blends with diesel. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=SOME" title="SOME">SOME</a>, <a href="https://publications.waset.org/abstracts/search?q=POME" title=" POME"> POME</a>, <a href="https://publications.waset.org/abstracts/search?q=BMEP" title=" BMEP"> BMEP</a>, <a href="https://publications.waset.org/abstracts/search?q=BSFC" title=" BSFC"> BSFC</a>, <a href="https://publications.waset.org/abstracts/search?q=BTE" title=" BTE"> BTE</a> </p> <a href="https://publications.waset.org/abstracts/34113/ci-engine-performance-analysis-using-sunflower-and-peanut-bio-diesel-blends" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34113.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">473</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">809</span> Monocrystalline Silicon Surface Passivation by Porous Silicon</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Ben%20Rabha">Mohamed Ben Rabha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we report on the effect of porous silicon (PS) treatment on the surface passivation of monocrystalline silicon (c-Si). PS film with a thickness of 80 nm was deposited by stain etching. It was demonstrated that PS coating is a very interesting solution for surface passivation. The level of surface passivation is determined by techniques based on photoconductance and FTIR. As a results, the effective minority carrier lifetime increase from 2 µs to 7 µs at ∆n=1015 cm-3 and the reflectivity reduce from 28 % to about 7 % after PS coating. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=porous%20silicon" title="porous silicon">porous silicon</a>, <a href="https://publications.waset.org/abstracts/search?q=effective%20minority%20carrier%20lifetime" title=" effective minority carrier lifetime"> effective minority carrier lifetime</a>, <a href="https://publications.waset.org/abstracts/search?q=reflectivity" title=" reflectivity"> reflectivity</a> </p> <a href="https://publications.waset.org/abstracts/19746/monocrystalline-silicon-surface-passivation-by-porous-silicon" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19746.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">445</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">808</span> Effects of the Tomato Pomace Oil Extract on Physical and Antioxidant Properties of Gelatin Films</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Jirukkakul">N. Jirukkakul</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Sodtipinta"> J. Sodtipinta</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Tomatoes are widely consumed as fresh and processed products through the manufacturing industry. Therefore, tomato pomace is generated as a by-product accounting for about 5-13% of the whole tomato. Antioxidants still remain in tomato pomace and extraction of tomato oil may useful in edible film production. The edible film solution was prepared by mixing gelatin (2, 4 and 6%) with the distilled water and heating at 40oC for 30 min. Effect of tomato pomace oil was evaluated at 0, 0.5 and 1%. Film solution was poured in plate and dried overnight at 40oC before determining the physical properties, which are tensile strength, moisture content, color, solubility, and swelling power. The results showed that an increase gelatin concentration caused increasing of tensile strength, moisture content, solubility and swelling power. The edible film with tomato pomace oil extract appeared as the rough film with oil droplet dispersion. The addition of tomato pomace oil extract caused an increase in lightness, redness and yellowness, while tensile strength, moisture content, and solubility were decreased. Film with tomato pomace oil extract at 0.5 and 1% exhibited antioxidant properties but those properties were not significantly different (p<0.05) between film incorporated with tomato pomace oil extract 0.5 and 1%. The suitable condition for film production in this study, 4% of gelatin and 0.5% of tomato pomace oil extract, was selected for protecting oxidation of palm oil. At 15 days of the storage period, the palm oil which covered by gelatin film with tomato pomace oil extract had 22.45 milliequivalents/kg of peroxide value (PV), while, the palm oil which covered by polypropylene film and control had 24.79 and 26.67 milliequivalents/kg, respectively. Therefore, incorporation of tomato pomace oil extract in gelatin film was able to protect the oxidation of food products with high fat content. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antioxidant" title="antioxidant">antioxidant</a>, <a href="https://publications.waset.org/abstracts/search?q=gelatin%20films" title=" gelatin films"> gelatin films</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20properties" title=" physical properties"> physical properties</a>, <a href="https://publications.waset.org/abstracts/search?q=tomato%20oil%20extract" title=" tomato oil extract"> tomato oil extract</a> </p> <a href="https://publications.waset.org/abstracts/54916/effects-of-the-tomato-pomace-oil-extract-on-physical-and-antioxidant-properties-of-gelatin-films" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54916.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">280</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">807</span> Novel Development on Orthopedic Prosthesis by Nanocrystalline Hydroxyapatite Nanocomposite Coated on 316 L Stainless Steel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Neriman%20Ozada">Neriman Ozada</a>, <a href="https://publications.waset.org/abstracts/search?q=Ebrahim%20Karamian"> Ebrahim Karamian</a>, <a href="https://publications.waset.org/abstracts/search?q=Amirsalar%20Khandan"> Amirsalar Khandan</a>, <a href="https://publications.waset.org/abstracts/search?q=Sina%20Ghafoorpoor%20Yazdi"> Sina Ghafoorpoor Yazdi </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Natural hydroxyapatite, NHA, coatings on the surface of 316 L stainless steel implants has been widely employed in order to achieve better osteoconductivity. For coating, the plasma spraying method is generally used because they ensure adhesion between the coating and the 316 L stainless steel (SS) surface. Some compounds such as zircon (ZrSiO4) is employed as an additive in an attempt to improve HA’s mechanical properties such as wear resistance and hardness. In this study wear resistance has been carried out in different chemical compositions of coating. Therefore, nanocomposites based on NHA containing of 0 wt.%, 5 wt.%, 10 wt.%, and 15 wt.% of zircon were used as a coating on the SS implants. The samples consisted of NHA, derived from calf heated at 850 °C for 3 h. The composite mixture was coated on SS by plasma spray method. The results were estimated using the scanning electron microscopy (SEM), X-ray diffraction (XRD) techniques were utilized to characterize the shape and size of NHA powder. Disc wear test and Vickers hardness were utilized to characterize the coated nanocomposite samples. The prepared NHA powder had nano-scale morphological structure with the mean crystallite size of 30-50 nm in diameter. The wear resistance are almost 320, 380, 415, and 395 m/g and hardness are approximately 376, 391, 420, 410 VHN in ceramic composite materials containing ZrSiO4. The results have been shown that the best wear resistance and hardness occurred in the sample coated by NHA/ZrSiO4 containing of 10 wt.% of zircon. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=zircon" title="zircon">zircon</a>, <a href="https://publications.waset.org/abstracts/search?q=316%20L%20stainless%20steel" title=" 316 L stainless steel"> 316 L stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=wear%20resistance" title=" wear resistance"> wear resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=orthopedic%20applications" title=" orthopedic applications"> orthopedic applications</a>, <a href="https://publications.waset.org/abstracts/search?q=plasma%20spray" title=" plasma spray "> plasma spray </a> </p> <a href="https://publications.waset.org/abstracts/23159/novel-development-on-orthopedic-prosthesis-by-nanocrystalline-hydroxyapatite-nanocomposite-coated-on-316-l-stainless-steel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23159.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">434</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">806</span> Simulated Mechanical Analysis on Hydroxyapatite Coated Porous Polylactic Acid Scaffold for Bone Grafting</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ala%20Abobakr%20Abdulhafidh%20Al-Dubai">Ala Abobakr Abdulhafidh Al-Dubai</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Bone loss has risen due to fractures, surgeries, and traumatic injuries. Scientists and engineers have worked over the years to find solutions to heal and accelerate bone regeneration. The bone grafting technique has been utilized, which projects significant improvement in the bone regeneration area. An extensive study is essential on the relation between the mechanical properties of bone scaffolds and the pore size of the scaffolds, as well as the relation between the mechanical properties of bone scaffolds with the development of bioactive coating on the scaffolds. In reducing the cost and time, a mechanical simulation analysis is beneficial to simulate both relations. Therefore, this study highlights the simulated mechanical analyses on three-dimensional (3D) polylactic acid (PLA) scaffolds at two different pore sizes (P: 400 and 600 μm) and two different internals distances of (D: 600 and 900 μm), with and without the presence of hydroxyapatite (HA) coating. The 3D scaffold models were designed using SOLIDWORKS software. The respective material properties were assigned with the fixation of boundary conditions on the meshed 3D models. Two different loads were applied on the PLA scaffolds, including side loads of 200 N and vertical loads of 2 kN. While only vertical loads of 2 kN were applied on the HA coated PLA scaffolds. The PLA scaffold P600D900, which has the largest pore size and maximum internal distance, generated the minimum stress under the applied vertical load. However, that same scaffold became weaker under the applied side load due to the high construction gap between the pores. The development of HA coating on top of the PLA scaffolds induced greater stress generation compared to the non-coated scaffolds which is tailorable for bone implantation. This study concludes that the pore size and the construction of HA coating on bone scaffolds affect the mechanical strength of the bone scaffolds. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hydroxyapatite%20coating" title="hydroxyapatite coating">hydroxyapatite coating</a>, <a href="https://publications.waset.org/abstracts/search?q=bone%20scaffold" title=" bone scaffold"> bone scaffold</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20simulation" title=" mechanical simulation"> mechanical simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=three-dimensional%20%283D%29" title=" three-dimensional (3D)"> three-dimensional (3D)</a>, <a href="https://publications.waset.org/abstracts/search?q=polylactic%20acid%20%28PLA%29." title=" polylactic acid (PLA)."> polylactic acid (PLA).</a> </p> <a href="https://publications.waset.org/abstracts/182078/simulated-mechanical-analysis-on-hydroxyapatite-coated-porous-polylactic-acid-scaffold-for-bone-grafting" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/182078.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">60</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">805</span> Evaluation of Thermal Barrier Coating Applied to the Gas Turbine Blade According to the Thermal Gradient</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jeong-Min%20Lee">Jeong-Min Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyunwoo%20Song"> Hyunwoo Song</a>, <a href="https://publications.waset.org/abstracts/search?q=Yonseok%20Kim"> Yonseok Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Junghan%20Yun"> Junghan Yun</a>, <a href="https://publications.waset.org/abstracts/search?q=Jungin%20Byun"> Jungin Byun</a>, <a href="https://publications.waset.org/abstracts/search?q=Jae-Mean%20Koo"> Jae-Mean Koo</a>, <a href="https://publications.waset.org/abstracts/search?q=Chang-Sung%20Seok"> Chang-Sung Seok</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Thermal Barrier Coating (TBC) prevents heat directly transferring from the high-temperature flame to the substrate. Top coat and bond coat compose the TBC and top coat consists of a ceramic and bond coat increases adhesion between the top coat and the substrate. The TBC technology drops the substrate surface temperature by about 150~200°C. In addition, the TBC system has a cooling system to lower the blade temperature by the air flow inside the blade. Then, as a result, the thermal gradient occurs inside the blade by cooling. Also, the internal stress occurs due to the difference in thermal expansion. In this paper, the finite element analyses (FEA) were performed and stress changes were derived according to the thermal gradient of the TBC system. The stress was increased due to the cooling, but difference of the stress between the top coat and bond coat was decreased. So, delamination in the interface between top coat and bond coat. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=gas%20turbine%20blade" title="gas turbine blade">gas turbine blade</a>, <a href="https://publications.waset.org/abstracts/search?q=Thermal%20Barrier%20Coating%20%28TBC%29" title=" Thermal Barrier Coating (TBC)"> Thermal Barrier Coating (TBC)</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20gradient" title=" thermal gradient"> thermal gradient</a>, <a href="https://publications.waset.org/abstracts/search?q=Finite%20Element%20Analysis%20%28FEA%29" title=" Finite Element Analysis (FEA)"> Finite Element Analysis (FEA)</a> </p> <a href="https://publications.waset.org/abstracts/15385/evaluation-of-thermal-barrier-coating-applied-to-the-gas-turbine-blade-according-to-the-thermal-gradient" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15385.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">607</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">804</span> The Determination of Sodium/Potassium Ion Ratio in Selected Edible Leafy Vegetables in North-Eastern Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Raymond%20D.%20Uzoh">Raymond D. Uzoh</a>, <a href="https://publications.waset.org/abstracts/search?q=Philip%20K.%20Shallsuku"> Philip K. Shallsuku</a>, <a href="https://publications.waset.org/abstracts/search?q=Christopher%20S.%20Vaachia"> Christopher S. Vaachia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Selected edible leafy vegetables from North-eastern Nigeria were analysed for their sodium and potassium content in mg/100 g and the ratio Na+/K+ worked out. From experimental results, Venonia amydalina (bitter leaf) contained 150 mg (0.15 g) of sodium and 20500 mg (20.5 g) potassium with a ratio of 0.007, Brassica oleracea var capitata (cabbage) contained 300 mg (0.3 g) of sodium and 19000 mg (19 g) of potassium with a ration of 0.012. Others are Telfairia occidentalis (fluted pumpkin) with 400 mg (0.45 g) of sodium and 19500 mg (19.5 g) of potassium with a ratio of 0.020; Hibiscus sabdriffa (sorrel) has 200 mg (0.2 g) of sodium and 600 mg (0.6 g) of potassium with a ratio of 0.300; and Amarantus caudatus (spinach) contained 450 mg (0.45 g) of sodium and 23000 mg (23 g) of potassium with a ratio of 0.020. The presence of sodium and potassium in foods has become increasingly important as recent studies and dietary information gathered in this research has shown that sodium intake is not the sole consideration in elevated blood pressure but its considered as a ratio Na+/K+ fixed at 0.6. This ratio has been found to be a more important factor, suggesting that our diet should contain 67 % more potassium than sodium. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=vegetables" title="vegetables">vegetables</a>, <a href="https://publications.waset.org/abstracts/search?q=sodium" title=" sodium"> sodium</a>, <a href="https://publications.waset.org/abstracts/search?q=potassium" title=" potassium"> potassium</a>, <a href="https://publications.waset.org/abstracts/search?q=blood%20pressure" title=" blood pressure"> blood pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=diet" title=" diet"> diet</a>, <a href="https://publications.waset.org/abstracts/search?q=foods" title=" foods "> foods </a> </p> <a href="https://publications.waset.org/abstracts/11091/the-determination-of-sodiumpotassium-ion-ratio-in-selected-edible-leafy-vegetables-in-north-eastern-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11091.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">478</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">803</span> Ceramide-PLGA Nanoparticle Formation to Apply to Atopic Dermatitis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sang-Myung%20Jung">Sang-Myung Jung</a>, <a href="https://publications.waset.org/abstracts/search?q=Gwang%20Heum%20%20Yoon"> Gwang Heum Yoon</a>, <a href="https://publications.waset.org/abstracts/search?q=Hoo%20Chul%20Lee"> Hoo Chul Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Hwa%20Sung%20Shin"> Hwa Sung Shin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ceramide, a component of stratum corneum at epidermis, helps to construct a rigid and dense skin barrier to prevent pathogens that cause atopic dermatitis. However, ceramide was too hydrophobic to be directly absorbed into stratum corneum and has risks of side effects by excessive treatment. To overcome the obstacles, ceramide was embedded into PLGA nanoparticles coated with chitosan. PLGA and chitosan have been known as biocompatible materials. PLGA was squeezed when faced with water and pumped ceramide out of PLGA nanoparticle. In addition, the chitosan coating layer helped initial adherence of nanoparticles to skin and regulate ceramide release until removed. This coating was degraded at weakly acid state like skin surface, finally ceramide release could be controlled. Finally, the nanoparticle was demonstrated to be non-cytotoxic and regenerate stratum corneum of atopic dermatitis model. Overall the nanoparticle is suggested as a novel and effective nanodrug to apply atopic dermatitis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanoparticle" title="nanoparticle">nanoparticle</a>, <a href="https://publications.waset.org/abstracts/search?q=controlled%20release" title=" controlled release"> controlled release</a>, <a href="https://publications.waset.org/abstracts/search?q=atopic%20dermatitis" title=" atopic dermatitis"> atopic dermatitis</a>, <a href="https://publications.waset.org/abstracts/search?q=chitosan%20coating" title=" chitosan coating"> chitosan coating</a>, <a href="https://publications.waset.org/abstracts/search?q=ceramide" title=" ceramide"> ceramide</a> </p> <a href="https://publications.waset.org/abstracts/50871/ceramide-plga-nanoparticle-formation-to-apply-to-atopic-dermatitis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50871.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">394</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">802</span> New Coating Materials Based on Mixtures of Shellac and Pectin for Pharmaceutical Products</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Kumpugdee-Vollrath">M. Kumpugdee-Vollrath</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Tabatabaeifar"> M. Tabatabaeifar</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Helmis"> M. Helmis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Shellac is a natural polyester resin secreted by insects. Pectins are natural, non-toxic and water-soluble polysaccharides extracted from the peels of citrus fruits or the leftovers of apples. Both polymers are allowed for the use in the pharmaceutical industry and as a food additive. SSB Aquagold® is the aqueous solution of shellac and can be used for a coating process as an enteric or controlled drug release polymer. In this study, tablets containing 10 mg methylene blue as a model drug were prepared with a rotary press. Those tablets were coated with mixtures of shellac and one of the pectin different types (i.e. CU 201, CU 501, CU 701 and CU 020) mostly in a 2:1 ratio or with pure shellac in a small scale fluidized bed apparatus. A stable, simple and reproducible three-stage coating process was successfully developed. The drug contents of the coated tablets were determined using UV-VIS spectrophotometer. The characterization of the surface and the film thickness were performed with the scanning electron microscopy (SEM) and the light microscopy. Release studies were performed in a dissolution apparatus with a basket. Most of the formulations were enteric coated. The dissolution profiles showed a delayed or sustained release with a lagtime of at least 4 h. Dissolution profiles of coated tablets with pure shellac had a very long lagtime ranging from 13 to 17.5 h and the slopes were quite high. The duration of the lagtime and the slope of the dissolution profiles could be adjusted by adding the proper type of pectin to the shellac formulation and by variation of the coating amount. In order to apply a coating formulation as a colon delivery system, the prepared film should be resistant against gastric fluid for at least 2 h and against intestinal fluid for 4-6 h. The required delay time was gained with most of the shellac-pectin polymer mixtures. The release profiles were fitted with the modified model of the Korsmeyer-Peppas equation and the Hixson-Crowell model. A correlation coefficient (R²) > 0.99 was obtained by Korsmeyer-Peppas equation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=shellac" title="shellac">shellac</a>, <a href="https://publications.waset.org/abstracts/search?q=pectin" title=" pectin"> pectin</a>, <a href="https://publications.waset.org/abstracts/search?q=coating" title=" coating"> coating</a>, <a href="https://publications.waset.org/abstracts/search?q=fluidized%20bed" title=" fluidized bed"> fluidized bed</a>, <a href="https://publications.waset.org/abstracts/search?q=release" title=" release"> release</a>, <a href="https://publications.waset.org/abstracts/search?q=colon%20delivery%20system" title=" colon delivery system"> colon delivery system</a>, <a href="https://publications.waset.org/abstracts/search?q=kinetic" title=" kinetic"> kinetic</a>, <a href="https://publications.waset.org/abstracts/search?q=SEM" title=" SEM"> SEM</a>, <a href="https://publications.waset.org/abstracts/search?q=methylene%20blue" title=" methylene blue"> methylene blue</a> </p> <a href="https://publications.waset.org/abstracts/5306/new-coating-materials-based-on-mixtures-of-shellac-and-pectin-for-pharmaceutical-products" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5306.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">407</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">801</span> Novel Self-Healing Eco-Friendly Coatings with Antifouling and Anticorrosion Properties for Maritime Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20N.%20Kipreou">K. N. Kipreou</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Efthmiadou"> E. Efthmiadou</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20Kordas"> G. Kordas </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Biofouling represents one of the most crucial problems in the present maritime industries when its control still challenges the researchers all over the world. The present work is referred to the synthesis and characterization CeMo and Cu2O nanocontainers by using a wide range of techniques including scanning electron microscopy (SEM), X-ray diffraction (XRD) and thermogravimetric analysis (TGA) for marine applications. The above nanosystems will be loaded with active monomers and corrosion rendering healing ability to marine paints. The objective of this project is their ability for self-healing, self-polishing and finally for anti-corrosion activity. One of the driving forces for the exploration of CeMo, is the unique anticorrosive behavior, which will be confirmed by the electrochemistry methodology. It has be highlighted that the nanocontainers of Cu2O with the appropriate antibacterial inhibitor will improve the hydrophobicity and the morphology of the coating surfaces reducing the water friction. In summary, both novel nanoc will increase the lifetime of the paints releasing the antifouling agent in a control manner. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=marinepaints" title="marinepaints">marinepaints</a>, <a href="https://publications.waset.org/abstracts/search?q=nanocontainer" title=" nanocontainer"> nanocontainer</a>, <a href="https://publications.waset.org/abstracts/search?q=antifouling" title=" antifouling"> antifouling</a>, <a href="https://publications.waset.org/abstracts/search?q=anticorrosion" title=" anticorrosion"> anticorrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=copper" title=" copper"> copper</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemistry" title=" electrochemistry"> electrochemistry</a>, <a href="https://publications.waset.org/abstracts/search?q=coating" title=" coating"> coating</a>, <a href="https://publications.waset.org/abstracts/search?q=biofouling" title=" biofouling"> biofouling</a>, <a href="https://publications.waset.org/abstracts/search?q=inhibitors" title=" inhibitors"> inhibitors</a>, <a href="https://publications.waset.org/abstracts/search?q=copper%20oxide" title=" copper oxide"> copper oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=coating" title=" coating"> coating</a>, <a href="https://publications.waset.org/abstracts/search?q=SEM" title=" SEM"> SEM</a> </p> <a href="https://publications.waset.org/abstracts/38348/novel-self-healing-eco-friendly-coatings-with-antifouling-and-anticorrosion-properties-for-maritime-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38348.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">338</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">800</span> Biodiesel Production from Edible Oil Wastewater Sludge with Bioethanol Using Nano-Magnetic Catalysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wighens%20Ngoie%20Ilunga">Wighens Ngoie Ilunga</a>, <a href="https://publications.waset.org/abstracts/search?q=Pamela%20J.%20Welz"> Pamela J. Welz</a>, <a href="https://publications.waset.org/abstracts/search?q=Olewaseun%20O.%20Oyekola"> Olewaseun O. Oyekola</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Ikhu-Omoregbe"> Daniel Ikhu-Omoregbe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Currently, most sludge from the wastewater treatment plants of edible oil factories is disposed to landfills, but landfill sites are finite and potential sources of environmental pollution. Production of biodiesel from wastewater sludge can contribute to energy production and waste minimization. However, conventional biodiesel production is energy and waste intensive. Generally, biodiesel is produced from the transesterification reaction of oils with alcohol (i.e., Methanol, ethanol) in the presence of a catalyst. Homogeneously catalysed transesterification is the conventional approach for large-scale production of biodiesel as reaction times are relatively short. Nevertheless, homogenous catalysis presents several challenges such as high probability of soap. The current study aimed to reuse wastewater sludge from the edible oil industry as a novel feedstock for both monounsaturated fats and bioethanol for the production of biodiesel. Preliminary results have shown that the fatty acid profile of the oilseed wastewater sludge is favourable for biodiesel production with 48% (w/w) monounsaturated fats and that the residue left after the extraction of fats from the sludge contains sufficient fermentable sugars after steam explosion followed by an enzymatic hydrolysis for the successful production of bioethanol [29% (w/w)] using a commercial strain of Saccharomyces cerevisiae. A novel nano-magnetic catalyst was synthesised from mineral processing alkaline tailings, mainly containing dolomite originating from cupriferous ores using a modified sol-gel. The catalyst elemental chemical compositions and structural properties were characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infra-red (FTIR) and the BET for the surface area with 14.3 m²/g and 34.1 nm average pore diameter. The mass magnetization of the nano-magnetic catalyst was 170 emu/g. Both the catalytic properties and reusability of the catalyst were investigated. A maximum biodiesel yield of 78% was obtained, which dropped to 52% after the fourth transesterification reaction cycle. The proposed approach has the potential to reduce material costs, energy consumption and water usage associated with conventional biodiesel production technologies. It may also mitigate the impact of conventional biodiesel production on food and land security, while simultaneously reducing waste. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biodiesel" title="biodiesel">biodiesel</a>, <a href="https://publications.waset.org/abstracts/search?q=bioethanol" title=" bioethanol"> bioethanol</a>, <a href="https://publications.waset.org/abstracts/search?q=edible%20oil%20wastewater%20sludge" title=" edible oil wastewater sludge"> edible oil wastewater sludge</a>, <a href="https://publications.waset.org/abstracts/search?q=nano-magnetism" title=" nano-magnetism"> nano-magnetism</a> </p> <a href="https://publications.waset.org/abstracts/84065/biodiesel-production-from-edible-oil-wastewater-sludge-with-bioethanol-using-nano-magnetic-catalysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84065.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">145</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">799</span> Ti-Mo-N Nano-Grains Embedded into Thin MoSₓ-Based Amorphous Matrix: A Novel Structure for Superhardness and Ultra-Low Wear</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lina%20Yang">Lina Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Mao%20Wen"> Mao Wen</a>, <a href="https://publications.waset.org/abstracts/search?q=Jianhong%20Chen"> Jianhong Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Kan%20Zhang"> Kan Zhang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Molybdenum disulfide (MoS₂) represents a highly sought lubricant for reducing friction based on intrinsic layered structure, but for this reason, practical applications have been greatly restricted due to the fact that its low hardness would cause severe wear. Here, a novel TiMoN/MoSₓ composite coatings with TiMoN solid solution grains embedded into MoSₓ-based amorphous matrix has been successfully designed and synthesized, through magnetron co-sputtering technology. Desirably, in virtue of such special microstructure, superhardness and excellent toughness can be well achieved, along with an ultra-low wear rate at ~2×10⁻¹¹ mm³/Nm in the air environment, simultaneously, low friction at ~0.1 is maintained. It should be noted that this wear level is almost two orders of magnitude lower than that of pure TiN coating, and is, as we know, the lowest wear rate in dry sliding. Investigations of tribofilm reveal that it is amorphous MoS₂ in nature, and its formation arises directly from the MoSₓ amorphous matrix. Which contributes to effective lubrication behavior, coupled with excellent mechanical performances of such composite coating, exceptionally low wear can be guaranteed. The findings in this work suggest that the special composite structure makes it possible for the synthesis of super-hard and super-durable lubricative coating, offering guidance to synthesize ultrahigh performance protective coating for industrial application. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hardness" title="hardness">hardness</a>, <a href="https://publications.waset.org/abstracts/search?q=MoS%E2%82%82-containing%20composite%20coatings" title=" MoS₂-containing composite coatings"> MoS₂-containing composite coatings</a>, <a href="https://publications.waset.org/abstracts/search?q=toughness" title=" toughness"> toughness</a>, <a href="https://publications.waset.org/abstracts/search?q=tribological%20properties" title=" tribological properties"> tribological properties</a> </p> <a href="https://publications.waset.org/abstracts/96144/ti-mo-n-nano-grains-embedded-into-thin-mos-based-amorphous-matrix-a-novel-structure-for-superhardness-and-ultra-low-wear" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/96144.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">152</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">798</span> Synthesis and Characterization of Fluorine-Free, Hydrophobic and Highly Transparent Coatings </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abderrahmane%20Hamdi">Abderrahmane Hamdi</a>, <a href="https://publications.waset.org/abstracts/search?q=Julie%20Chalon"> Julie Chalon</a>, <a href="https://publications.waset.org/abstracts/search?q=Benoit%20Dodin"> Benoit Dodin</a>, <a href="https://publications.waset.org/abstracts/search?q=Philippe%20Champagne"> Philippe Champagne</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research work concerns the synthesis of hydrophobic and self-cleaning coatings as an alternative to fluorine-based coatings used on glass. The developed, highly transparent coatings are produced by a chemical route (sol-gel method) using two silica-based precursors, hexamethyldisilazane and tetraethoxysilane (HMDS/TEOS). The addition of zinc oxide nanoparticles (ZnO NPs) within the gel provides a photocatalytic property to the final coating. The prepared gels were deposited on glass slides using different methods. The properties of the coatings were characterized by optical microscopy, scanning electron microscopy, UV-VIS-NIR spectrophotometer, and water contact angle method. The results show that the obtained coatings are homogeneous and have a hydrophobic character. In particular, after thermal treatment, the HMDS/TEOS@ZnO charged gel deposited on glass constitutes a coating capable of degrading methylene blue (MB) under UV irradiation. Optical transmission reaches more than 90% in most of the visible light spectrum. Synthetized coatings have also demonstrated their mechanical durability and self-cleaning ability. <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=durability" title=" durability"> durability</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrophobicity" title=" hydrophobicity"> hydrophobicity</a>, <a href="https://publications.waset.org/abstracts/search?q=sol-gel" title=" sol-gel"> sol-gel</a>, <a href="https://publications.waset.org/abstracts/search?q=self-cleaning" title=" self-cleaning"> self-cleaning</a>, <a href="https://publications.waset.org/abstracts/search?q=transparence" title=" transparence"> transparence</a> </p> <a href="https://publications.waset.org/abstracts/122907/synthesis-and-characterization-of-fluorine-free-hydrophobic-and-highly-transparent-coatings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/122907.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">162</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">797</span> Investigation of the Effect of Plasticization Temperature on Polymer Thin Film Stability through Spin Coating Process</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bilge%20Bozdogan">Bilge Bozdogan</a>, <a href="https://publications.waset.org/abstracts/search?q=Selda%20T.%20Sendogdular"> Selda T. Sendogdular</a>, <a href="https://publications.waset.org/abstracts/search?q=Levent%20Sendogdular"> Levent Sendogdular</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We report a technique to control chain conformation during the plasticization process to achieve homogeneous and stable thin films, which allows to reduce post-process annealing times along with enhanced properties like controlled irreversible adsorbed layer (Guiselin brushes) formation. In this study, spin coating temperature was considered as a parameter; hence, all equipment, including the spin coater, substrate, vials, and the solution, was kept inside the same heated fume hood where solution was spin-coated after the temperature was stabilized at a desired value. AFM and SEM results revealed severe difference for solid and air interface between ambient and temperature-controlled samples, which suggest that enthalpic contribution dynamically helps to control film stability in a way where chain entanglements and conformational restrictions are avoided before film growing and allowing to control grafting density through spin coating temperature. The adsorbed layer was also characterized with SEM and Raman-spectroscopy technique right after seeding the adsorbed layer with gold nanoparticles. Stabilized gold nanoparticles and their surface distribution manifest the existence of a controllable polymer brush structure. Acknowledgments: This study was funded by Erciyes University Scientific Research Projects (BAP) Funding(Project ID:10058) <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chain%20stability" title="chain stability">chain stability</a>, <a href="https://publications.waset.org/abstracts/search?q=Guiselin%20brushes" title=" Guiselin brushes"> Guiselin brushes</a>, <a href="https://publications.waset.org/abstracts/search?q=polymer%20thin%20film" title=" polymer thin film"> polymer thin film</a>, <a href="https://publications.waset.org/abstracts/search?q=spin%20coating%20temperature" title=" spin coating temperature"> spin coating temperature</a> </p> <a href="https://publications.waset.org/abstracts/137600/investigation-of-the-effect-of-plasticization-temperature-on-polymer-thin-film-stability-through-spin-coating-process" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/137600.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">214</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">796</span> Thermal Barrier Coated Diesel Engine With Neural Networks Mathematical Modelling </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hanbey%20Hazar">Hanbey Hazar</a>, <a href="https://publications.waset.org/abstracts/search?q=Hakan%20Gul"> Hakan Gul</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study; piston, exhaust, and suction valves of a diesel engine were coated in 300 mm thickness with Tungsten Carbide (WC) by using the HVOF coating method. Mathematical modeling of a coated and uncoated (standardized) engine was performed by using ANN (Artificial Neural Networks). The purpose was to decrease the number of repetitions of tests and reduce the test cost through mathematical modeling of engines by using ANN. The results obtained from the tests were entered in ANN and therefore engines' values at all speeds were estimated. Results obtained from the tests were compared with those obtained from ANN and they were observed to be compatible. It was also observed that, with thermal barrier coating, hydrocarbon (HC), carbon monoxide (CO), and smoke density values of the diesel engine decreased; but nitrogen oxides (NOx) increased. Furthermore, it was determined that results obtained through mathematical modeling by means of ANN reduced the number of test repetitions. Therefore, it was understood that time, fuel and labor could be saved in this way. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Artificial%20Neural%20Network" title="Artificial Neural Network">Artificial Neural Network</a>, <a href="https://publications.waset.org/abstracts/search?q=Diesel%20Engine" title=" Diesel Engine"> Diesel Engine</a>, <a href="https://publications.waset.org/abstracts/search?q=Mathematical%20Modelling" title=" Mathematical Modelling"> Mathematical Modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=Thermal%20Barrier%20Coating" title=" Thermal Barrier Coating"> Thermal Barrier Coating</a> </p> <a href="https://publications.waset.org/abstracts/21703/thermal-barrier-coated-diesel-engine-with-neural-networks-mathematical-modelling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21703.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">528</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">795</span> Development of a Double Coating Technique for Recycled Concrete Aggregates Used in Hot-mix Asphalt </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abbaas%20I.%20Kareem">Abbaas I. Kareem</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Nikraz"> H. Nikraz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The use of recycled concrete aggregates (RCAs) in hot-mix asphalt (HMA) production could ease natural aggregate shortage and maintain sustainability in modern societies. However, it was the attached cement mortar and other impurities that make the RCAs behave differently than high-quality aggregates. Therefore, different upgrading treatments were suggested to enhance its properties before being used in HMA production. Disappointedly, some of these treatments had caused degradation to some RCA properties. In order to avoid degradation, a coating technique is developed. This technique is based on combining of two main treatments, so it is named as double coating technique (DCT). Dosages of 0%, 20%, 40% and 60% uncoated RCA, RCA coated with Cement Slag Paste (CSP), and Double Coated Recycled Concrete Aggregates (DCRCAs) in place of granite aggregates were evaluated. The results indicated that the DCT improves strength and reduces water absorption of the DCRCAs compared with uncoated RCAs and RCA coated with CSP. In addition, the DCRCA asphalt mixtures exhibit stability values higher than those obtained for mixes made with granite aggregates, uncoated RCAs and RCAs coated with CSP. Also, the DCRCA asphalt mixtures require less bitumen to achieve the optimum bitumen content (OBC) than those manufactured with uncoated RCA and RCA-coated with CSP. Although the results obtained were encouraging, more testing is required in order to examine the effect of the DCT on performance properties of DCRCA- asphalt mixtures such as rutting and fatigue. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aggregate%20crashed%20value" title="aggregate crashed value">aggregate crashed value</a>, <a href="https://publications.waset.org/abstracts/search?q=double%20coating%20technique" title=" double coating technique"> double coating technique</a>, <a href="https://publications.waset.org/abstracts/search?q=hot%20mix%20asphalt" title=" hot mix asphalt"> hot mix asphalt</a>, <a href="https://publications.waset.org/abstracts/search?q=Marshall%20parameters" title=" Marshall parameters"> Marshall parameters</a>, <a href="https://publications.waset.org/abstracts/search?q=recycled%20concrete%20aggregates" title=" recycled concrete aggregates"> recycled concrete aggregates</a> </p> <a href="https://publications.waset.org/abstracts/90728/development-of-a-double-coating-technique-for-recycled-concrete-aggregates-used-in-hot-mix-asphalt" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90728.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">287</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">794</span> Thin Films of Copper Oxide Deposited by Sol-Gel Spin Coating Method: Effect of Annealing Temperature on Structural and Optical Properties</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Touka%20Nassim">Touka Nassim</a>, <a href="https://publications.waset.org/abstracts/search?q=Tabli%20Dalila"> Tabli Dalila</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, CuO thin films synthesized via simple sol-gel method, have been deposited on glass substrates by the spin coating technique and annealed at various temperatures. Samples were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), Fourier-transform infrared (FT-IR) and Raman spectroscopy, and UV-visible spectroscopy. The structural characterization by XRD reveals that the as prepared films were tenorite phase and have a high level of purity and crystallinity. The crystallite size of the CuO films was affected by the annealing temperature and was estimated in the range 20-31.5 nm. SEM images show a homogeneous distribution of spherical nanoparticles over the surface of the annealed films at 350 and 450 °C. Vibrational Spectroscopy revealed vibration modes specific to CuO with monolithic structure on the Raman spectra at 289 cm−1 and on FT-IR spectra around 430-580 cm−1. Electronic investigation performed by UV–Visible spectroscopy showed that the films have high absorbance in the visible region and their optical band gap increases from 2.40 to 2.66 eV (blue shift) with increasing annealing temperature from 350 to 550 °C. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sol-gel" title="Sol-gel">Sol-gel</a>, <a href="https://publications.waset.org/abstracts/search?q=Spin%20coating%20method" title=" Spin coating method"> Spin coating method</a>, <a href="https://publications.waset.org/abstracts/search?q=Copper%20oxide" title=" Copper oxide"> Copper oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=Thin%20films" title=" Thin films"> Thin films</a> </p> <a href="https://publications.waset.org/abstracts/123398/thin-films-of-copper-oxide-deposited-by-sol-gel-spin-coating-method-effect-of-annealing-temperature-on-structural-and-optical-properties" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/123398.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">160</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">793</span> Assessment of Wastewater Reuse Potential for an Enamel Coating Industry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Guclu%20Insel">Guclu Insel</a>, <a href="https://publications.waset.org/abstracts/search?q=Efe%20Gumuslu"> Efe Gumuslu</a>, <a href="https://publications.waset.org/abstracts/search?q=Gulten%20Yuksek"> Gulten Yuksek</a>, <a href="https://publications.waset.org/abstracts/search?q=Nilay%20Sayi%20Ucar"> Nilay Sayi Ucar</a>, <a href="https://publications.waset.org/abstracts/search?q=Emine%20Ubay%20Cokgor"> Emine Ubay Cokgor</a>, <a href="https://publications.waset.org/abstracts/search?q=Tugba%20Olmez%20Hanci"> Tugba Olmez Hanci</a>, <a href="https://publications.waset.org/abstracts/search?q=Didem%20Okutman%20Tas"> Didem Okutman Tas</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatos%20Germirli%20Babuna"> Fatos Germirli Babuna</a>, <a href="https://publications.waset.org/abstracts/search?q=Derya%20Firat%20Ertem"> Derya Firat Ertem</a>, <a href="https://publications.waset.org/abstracts/search?q=Okmen%20Yildirim"> Okmen Yildirim</a>, <a href="https://publications.waset.org/abstracts/search?q=Ozge%20Erturan"> Ozge Erturan</a>, <a href="https://publications.waset.org/abstracts/search?q=Betul%20Kirci"> Betul Kirci</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In order to eliminate water scarcity problems, effective precautions must be taken. Growing competition for water is increasingly forcing facilities to tackle their own water scarcity problems. At this point, application of wastewater reclamation and reuse results in considerable economic advantageous. In this study, an enamel coating facility, which is one of the high water consumed facilities, is evaluated in terms of its wastewater reuse potential. Wastewater reclamation and reuse can be defined as one of the best available techniques for this sector. Hence, process and pollution profiles together with detailed characterization of segregated wastewater sources are appraised in a way to find out the recoverable effluent streams arising from enamel coating operations. Daily, 170 m<sup>3</sup> of process water is required and 160 m<sup>3</sup> of wastewater is generated. The segregated streams generated by two enamel coating processes are characterized in terms of conventional parameters. Relatively clean segregated wastewater streams (reusable wastewaters) are separately collected and experimental treatability studies are conducted on it. The results reflected that the reusable wastewater fraction has an approximate amount of 110 m<sup>3</sup>/day that accounts for 68% of the total wastewaters. The need for treatment applicable on reusable wastewaters is determined by considering water quality requirements of various operations and characterization of reusable wastewater streams. Ultra-filtration (UF), Nano-filtration (NF) and Reverse Osmosis (RO) membranes are subsequently applied on reusable effluent fraction. Adequate organic matter removal is not obtained with the mentioned treatment sequence. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=enamel%20coating" title="enamel coating">enamel coating</a>, <a href="https://publications.waset.org/abstracts/search?q=membrane" title=" membrane"> membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=reuse" title=" reuse"> reuse</a>, <a href="https://publications.waset.org/abstracts/search?q=wastewater%20reclamation" title=" wastewater reclamation"> wastewater reclamation</a> </p> <a href="https://publications.waset.org/abstracts/44839/assessment-of-wastewater-reuse-potential-for-an-enamel-coating-industry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44839.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">328</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">792</span> Influence of Layer-by-Layer Coating Parameters on the Properties of Hybrid Membrane for Water Treatment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jenny%20Radeva">Jenny Radeva</a>, <a href="https://publications.waset.org/abstracts/search?q=Anke-Gundula%20Roth"> Anke-Gundula Roth</a>, <a href="https://publications.waset.org/abstracts/search?q=Christian%20Goebbert"> Christian Goebbert</a>, <a href="https://publications.waset.org/abstracts/search?q=Robert%20Niestroj-Pahl"> Robert Niestroj-Pahl</a>, <a href="https://publications.waset.org/abstracts/search?q=Lars%20Daehne"> Lars Daehne</a>, <a href="https://publications.waset.org/abstracts/search?q=Axel%20Wolfram"> Axel Wolfram</a>, <a href="https://publications.waset.org/abstracts/search?q=Juergen%20WIese"> Juergen WIese</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The presented investigation studies the correlation between the process parameters of Layer-by-Layer (LbL) coatings and properties of the produced hybrid membranes for water treatment. The coating of alumina ceramic support membrane with polyelectrolyte multilayers on top results in hybrid membranes with increased fouling resistant behavior, high retention (up to 90%) of salt ions and various pharmaceuticals, selectivity to various organic molecules as known from LbL coated polyether sulfone membranes and the possibility of pH response control. Chosen polyelectrolytes were added to the support using the LbL-coating process. Parameters like the type of polyelectrolyte, ionic strength, and pH were varied in order to find the most suitable process conditions and to study how they influence the properties of the final product. The applied LbL-films was investigated in respect to its homogeneity and penetration depth. The analysis of the layer buildup was performed using fluorescence labeled polyelectrolyte molecules and Confocal Laser Scanning Microscopy as well as Scanning and Transmission Electron Microscopy. Furthermore, the influence of the coating parameters on the porosity, surface potential, retention, and permeability of the developed hybrid membranes were estimated. In conclusion, a comparison was drawn between the filtration performance of the uncoated alumina ceramic membrane and modified hybrid membranes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=water%20treatment" title="water treatment">water treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=membranes" title=" membranes"> membranes</a>, <a href="https://publications.waset.org/abstracts/search?q=ceramic%20membranes" title=" ceramic membranes"> ceramic membranes</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20membranes" title=" hybrid membranes"> hybrid membranes</a>, <a href="https://publications.waset.org/abstracts/search?q=layer-by-layer%20modification" title=" layer-by-layer modification"> layer-by-layer modification</a> </p> <a href="https://publications.waset.org/abstracts/138613/influence-of-layer-by-layer-coating-parameters-on-the-properties-of-hybrid-membrane-for-water-treatment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138613.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">180</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">791</span> Investigation of Tribological Behavior of Electrodeposited Cr, Co-Cr and Co-Cr/Tio2 Nano-Composite Coatings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Mahdavi">S. Mahdavi</a>, <a href="https://publications.waset.org/abstracts/search?q=S.R.%20Allahkaram"> S.R. Allahkaram </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Electrodeposition is a simple and economic technique for precision coating of different shaped substrates with pure metal, alloy or composite films. Dc electrodeposition was used to produce Cr, Co-Cr and Co-Cr/TiO2 nano-composite coatings from Cr(III) based electrolytes onto 316L SS substrates. The effects of TiO2 nano-particles concentration on co-deposition of these particles along with Cr content and microhardness of the coatings were investigated. Morphology of the Cr, Co-Cr and Co-Cr/TiO2 coatings besides their tribological behavior were studied. The results showed that increment of TiO2 nano-particles concentration from 0 to 30 g L-1 in the bath increased their co-deposition and Cr content of the coatings from 0 to 3.5 wt.% and from 23.7 to 31.2 wt.%, respectively. Microhardness of Cr coating was about 920 Hv which was higher than Co-Cr and even Co-Cr/TiO2 films. Microhardness of Co-Cr and Co-Cr/TiO2 coatings were improved by increasing their Cr and TiO2 content. All the coatings had nodular morphology and contained microcracks. Nodules sizes and the number of microcracks in the alloy and composite coatings were lower than the Cr film. Wear results revealed that the Co-Cr/TiO2 coating had the lowest wear loss between all the samples, while the Cr film had the worst wear resistance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Co-Cr%20alloy" title="Co-Cr alloy">Co-Cr alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=electrodeposition" title=" electrodeposition"> electrodeposition</a>, <a href="https://publications.waset.org/abstracts/search?q=nano-composite" title=" nano-composite"> nano-composite</a>, <a href="https://publications.waset.org/abstracts/search?q=tribological%20behavior" title=" tribological behavior"> tribological behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=trivalent%20chromium" title=" trivalent chromium"> trivalent chromium</a> </p> <a href="https://publications.waset.org/abstracts/24529/investigation-of-tribological-behavior-of-electrodeposited-cr-co-cr-and-co-crtio2-nano-composite-coatings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24529.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">487</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">790</span> Evaluating the Methods of Retrofitting and Renovating the Masonry Schools of Ahvaz City</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Navid%20Khayat">Navid Khayat</a>, <a href="https://publications.waset.org/abstracts/search?q=Babak%20Mombeni"> Babak Mombeni </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study investigates the retrofitting of schools in Ahvaz City. Three schools, namely, Enghelab, Sherafat, and Golchehreh, in Ahvaz City, are initially examined through Schmidt hammer and ultrasonic tests. Given the tests and controls on the structures of these schools, the methods are presented for their reconstruction. The plan is presented for each school by estimating the cost and generally the feasibility and estimated the duration of project reconstruction. After reconstruction, the mentioned tests are re-performed for rebuilt parts and the results indicate a significant improvement in performance of structure because of reconstruction. According to the results, despite the fact that the use of fiber reinforced polymers (FRP) for structure retrofitting is costly, due to the low executive costs and also other benefits of FRP, it is generally considered as one of the most effective ways of retrofitting. Building the concrete coating on walls is another effective method in retrofitting the buildings. According to this method, a grid of horizontal and vertical bars is installed on the wall and then the concrete is poured on it. The use of concrete coating on the concrete and brick structures leads to the useful results and the experience indicates that the poured concrete filled the joints well and provides the appropriate bonding and adhesion. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=renovation" title="renovation">renovation</a>, <a href="https://publications.waset.org/abstracts/search?q=retrofitting" title=" retrofitting"> retrofitting</a>, <a href="https://publications.waset.org/abstracts/search?q=masonry%20structures" title=" masonry structures"> masonry structures</a>, <a href="https://publications.waset.org/abstracts/search?q=concrete%20coating" title=" concrete coating"> concrete coating</a> </p> <a href="https://publications.waset.org/abstracts/35941/evaluating-the-methods-of-retrofitting-and-renovating-the-masonry-schools-of-ahvaz-city" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35941.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">453</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">789</span> Studies of Carbohydrate, Antioxidant, Nutrient and Genomic DNA Characterization of Fresh Olive Treated with Alkaline and Acidic Solvent: An Innovation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20B.%20M.%20S.%20Hossain">A. B. M. S. Hossain</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Abdelgadir"> A. Abdelgadir</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20A.%20Ibrahim"> N. A. Ibrahim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fresh ripen olive cannot be consumed immediately after harvest due to the excessive bitterness having polyphenol as antioxidant. Industrial processing needs to be edible the fruit. The laboratory processing technique has been used to make it edible by using acid (vinegar, 5% acetic acid) and alkaline solvent (NaOH). Based on the treatment and consequence, innovative data have been found in this regard. The experiment was conducted to investigate biochemical content, nutritional and DNA characterization of olive fruit treated with alkaline (Sodium chloride anhydrous) and acidic solvent (5% acetic acid, vinegar). The treatments were used as control (no water), water control, 10% sodium chloride anhydrous (NaOH), vinegar (5% acetic acid), vinegar + NaOH and vinegar + NaOH + hot water treatment. Our results showed that inverted sugar and glucose content were higher in the vinegar and NaOH treated olive than in other treatments. Fructose content was the highest in vinegar + NaOH treated fruit. Nutrient contents NO3 K, Ca and Na were found higher in the treated fruit than the control fruit. Moreover, maximum K content was observed in the case of all treatments compared to the other nutrient content. The highest acidic (lower pH) condition (sour) was found in treated fruit. DNA yield was found higher in water control than acid and alkaline treated olives. DNA band was wider in the olive treated water control compared to the NaOH, vinegar, vinegar + NaOH and vinegar + NaOH + Hot water treatment. Finally, results suggest that vinegar + NaOH treated olive fruit was the best for fresh olive homemade processing after harvesting for edible purpose. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=olive" title="olive">olive</a>, <a href="https://publications.waset.org/abstracts/search?q=vinegar" title=" vinegar"> vinegar</a>, <a href="https://publications.waset.org/abstracts/search?q=sugars" title=" sugars"> sugars</a>, <a href="https://publications.waset.org/abstracts/search?q=DNA%20band" title=" DNA band"> DNA band</a>, <a href="https://publications.waset.org/abstracts/search?q=bioprocess%20biotechnology" title=" bioprocess biotechnology"> bioprocess biotechnology</a> </p> <a href="https://publications.waset.org/abstracts/70745/studies-of-carbohydrate-antioxidant-nutrient-and-genomic-dna-characterization-of-fresh-olive-treated-with-alkaline-and-acidic-solvent-an-innovation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/70745.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">788</span> The Using of Liquefied Petroleum Gas (LPG) on a Low Heat Loss Si Engine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hanbey%20Hazar">Hanbey Hazar</a>, <a href="https://publications.waset.org/abstracts/search?q=Hakan%20Gul"> Hakan Gul</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, Thermal Barrier Coating (TBC) application is performed in order to reduce the engine emissions. Piston, exhaust, and intake valves of a single-cylinder four-cycle gasoline engine were coated with chromium carbide (Cr3C2) at a thickness of 300 µm by using the Plasma Spray coating method which is a TBC method. Gasoline engine was converted into an LPG system. The study was conducted in 4 stages. In the first stage, the piston, exhaust, and intake valves of the gasoline engine were coated with Cr3C2. In the second stage, gasoline engine was converted into the LPG system and the emission values in this engine were recorded. In the third stage, the experiments were repeated under the same conditions with a standard (uncoated) engine and the results were recorded. In the fourth stage, data obtained from both engines were loaded on Artificial Neural Networks (ANN) and estimated values were produced for every revolution. Thus, mathematical modeling of coated and uncoated engines was performed by using ANN. While there was a slight increase in exhaust gas temperature (EGT) of LPG engine due to TBC, carbon monoxide (CO) values decreased. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=LPG%20fuel" title="LPG fuel">LPG fuel</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20barrier%20coating" title=" thermal barrier coating"> thermal barrier coating</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20neural%20network" title=" artificial neural network"> artificial neural network</a>, <a href="https://publications.waset.org/abstracts/search?q=mathematical%20modelling" title=" mathematical modelling"> mathematical modelling</a> </p> <a href="https://publications.waset.org/abstracts/58718/the-using-of-liquefied-petroleum-gas-lpg-on-a-low-heat-loss-si-engine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58718.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">425</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">787</span> The Importance of a Coating and Architecture of the Surface Metal on the Survival of Uncemented Total Knee Arthroplasty</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Raymond%20Puijk">Raymond Puijk</a>, <a href="https://publications.waset.org/abstracts/search?q=Rachid%20Rassir"> Rachid Rassir</a>, <a href="https://publications.waset.org/abstracts/search?q=Inger%20N.%20Sierevelt"> Inger N. Sierevelt</a>, <a href="https://publications.waset.org/abstracts/search?q=Anneke%20Spekenbrink-Sporen"> Anneke Spekenbrink-Sporen</a>, <a href="https://publications.waset.org/abstracts/search?q=Bart%20G.%20C.%20W.%20Pijls"> Bart G. C. W. Pijls</a>, <a href="https://publications.waset.org/abstracts/search?q=Rob%20G.%20H.%20H.%20Nelissen"> Rob G. H. H. Nelissen</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20A.%20Nolte"> Peter A. Nolte</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Among uncemented total knee arthroplasty (TKA), a wide variety of metal surface structures (MSS) and coatings exist to enhance implants' biological properties (i.e., bone ingrowth). This study explores the variety of MSS-coating combinations and compares their mid-long-term survivorships with cemented TKAs, by using data from the Dutch Arthroplasty Register. Methods: A total of 235,500 cemented and 11,132 uncemented primary TKAs with a median follow-up of 5.1 years were included. MSS-coating combinations were (1) Porous-uncoated (n=8986), (2) Beaded-hydroxyapatite (HA)(n=1093), (3) Matte-uncoated (n=846), (4) Matte-Titanium-nitride (TiN) (n=207). Five- and 10-year revision-free survival for all-cause revisions, and aseptic loosening of the tibial component, were calculated and compared by using Kaplan-Meier, Log-rank tests, and multivariable Cox proportional hazard regression analyses. Results: Ten-year survival rates with all-cause revisions as an endpoint, were 94.2% for cement, and 94.7%, 96.3%, 92.1%, and 79.0% for porous-uncoated, beaded-HA, matte-uncoated, and Matte-TiN, respectively (p<0.01). Rates for aseptic loosening were 98.8% for cemented, and 98.7%, 99.8%, 97.2%, and 94.9% for the uncemented, respectively (p<0.01).The beaded-HA implants were half the risk for an all-cause revision compared to cemented implants (p<0.01). Matte-uncoated and matte-TiN implants were at more risk of an all-cause revision than cemented implants (p=0.01, p<0.01). Proportions of revisions for aseptic loosening were comparable among most groups. Conclusion: Based on Dutch registry data, four main MSS-coating combinations among uncemented TKAs were found. survivorships for all-cause revisions and aseptic release differed widely between groups. Beaded-HA and porous-uncoated implants had the best survival rates among the uncemented TKAs and were non-inferior to the cemented TKAs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=total%20knee%20arthroplasty" title="total knee arthroplasty">total knee arthroplasty</a>, <a href="https://publications.waset.org/abstracts/search?q=cement" title=" cement"> cement</a>, <a href="https://publications.waset.org/abstracts/search?q=uncemented" title=" uncemented"> uncemented</a>, <a href="https://publications.waset.org/abstracts/search?q=cementless%3B" title=" cementless;"> cementless;</a>, <a href="https://publications.waset.org/abstracts/search?q=metal%20surface%20structure" title=" metal surface structure"> metal surface structure</a>, <a href="https://publications.waset.org/abstracts/search?q=coating" title=" coating"> coating</a> </p> <a href="https://publications.waset.org/abstracts/156589/the-importance-of-a-coating-and-architecture-of-the-surface-metal-on-the-survival-of-uncemented-total-knee-arthroplasty" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156589.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">152</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">786</span> The Study of Wetting Properties of Silica-Poly (Acrylic Acid) Thin Film Coatings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sevil%20Kaynar%20Turkoglu">Sevil Kaynar Turkoglu</a>, <a href="https://publications.waset.org/abstracts/search?q=Jinde%20Zhang"> Jinde Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jo%20Ann%20Ratto"> Jo Ann Ratto</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanna%20Dodiuk"> Hanna Dodiuk</a>, <a href="https://publications.waset.org/abstracts/search?q=Samuel%20Kenig"> Samuel Kenig</a>, <a href="https://publications.waset.org/abstracts/search?q=Joey%20Mead"> Joey Mead</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Superhydrophilic, crack-free thin film coatings based on silica nanoparticles were fabricated by dip-coating method. Both thermodynamic and dynamic effects on the wetting properties of the thin films were investigated by modifying the coating formulation via changing the particle-to-binder ratio and weight % of silica in solution. The formulated coatings were characterized by a number of analyses. Water contact angle (WCA) measurements were conducted for all coatings to characterize the surface wetting properties. Scanning electron microscope (SEM) images were taken to examine the morphology of the coating surface. Atomic force microscopy (AFM) analysis was done to study surface topography. The presence of hydrophilic functional groups and nano-scale roughness were found to be responsible for the superhydrophilic behavior of the films. In addition, surface chemistry, compared to surface roughness, was found to be a primary factor affecting the wetting properties of the thin film coatings. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=poly%20%28acrylic%20acid%29" title="poly (acrylic acid)">poly (acrylic acid)</a>, <a href="https://publications.waset.org/abstracts/search?q=silica%20nanoparticles" title=" silica nanoparticles"> silica nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=superhydrophilic%20coatings" title=" superhydrophilic coatings"> superhydrophilic coatings</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20wetting" title=" surface wetting"> surface wetting</a> </p> <a href="https://publications.waset.org/abstracts/114795/the-study-of-wetting-properties-of-silica-poly-acrylic-acid-thin-film-coatings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/114795.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">134</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">785</span> Appraisal of the Nutritional Potential and Safety of Wild Vegetables of South Africa </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Thozama%20Kwinana-Mandindi">Thozama Kwinana-Mandindi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The contribution made by wild edible plants to the livelihoods, food baskets and diets of the indigenous people, particularly among the rural dwellers is invaluable. These wild vegetables are among the non-conventional crops which are widely distributed throughout the wild regions in South Africa, indigenous communities have always exploited for micro-nutrient supply. They also supply significant complex, recently discovered compounds, naturally occurring phytonutrients. In order to protect and promote sustainable use of these plants for household food security, there is a need to better understand them through studies and innovations. Assessment of the wild edible plants’ safety is very key to the promotion as an agricultural product which can be utilised during dry seasons and periods of food scarcity to alleviate nutrient insecurity. Through the use of Scanning Electron Microscope (SEM) and energy dispersive X-ray spectroscopy (EDXS), the study is seen as the vital step in taking a holistic view of the value of the four most consumed wild vegetables in the Eastern Cape Province of South Africa as they were analysed for safety and appraised for components that can influence utilisation. Results indicate that they can be relied upon and cultivation be promoted. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nature%E2%80%99s%20resource" title="nature’s resource">nature’s resource</a>, <a href="https://publications.waset.org/abstracts/search?q=wild%20vegetables" title=" wild vegetables"> wild vegetables</a>, <a href="https://publications.waset.org/abstracts/search?q=appraisal%20for%20safety" title=" appraisal for safety"> appraisal for safety</a>, <a href="https://publications.waset.org/abstracts/search?q=SEM" title=" SEM "> SEM </a> </p> <a href="https://publications.waset.org/abstracts/28248/appraisal-of-the-nutritional-potential-and-safety-of-wild-vegetables-of-south-africa" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28248.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">441</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">784</span> Experimental Investigation Of Membrane Performance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ali%20Serhat%20Ersoyo%C4%9Flu">Ali Serhat Ersoyoğlu</a>, <a href="https://publications.waset.org/abstracts/search?q=Kevser%20Dincer"> Kevser Dincer</a>, <a href="https://publications.waset.org/abstracts/search?q=Salih%20Yayla"> Salih Yayla</a>, <a href="https://publications.waset.org/abstracts/search?q=Derya%20Sayg%C4%B1l%C4%B1"> Derya Saygılı</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, performance of membrane was experimentally investigated. A solution having 1,5 gr Yttria-Stabilized Zirconia (YSZ)+ 10 mL methanol was prepared. This solution was taken out and filled into a spinning syringe. 6 grill-shaped wires having the sizes of 2x2 cm2’were cladded with YSZ + methanol solution by using the spinning method. After coating, the grill-shaped wires were left to dry. The dry wires were then weighed on a precision scale to determine the amount of coating imposed. The grill-shaped wires were mounted on the anode side of the PEM fuel cell membrane. Effects of the coating on the wires on current, power and resistance performances in the PEM fuel cells were determined experimentally and compared for every case. The highest current occurred at the 1st second on current #1, while the lowest current occurred at the 1171th second on current #6. The highest resistance was recorded at the 1171th second on resistance # 6, the lowest occurred at the 1st second on resistance # 1, whereas the highest power took place at the 1st second on power #1, the lowest power appeared at the 1171th second on power #5. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=membrane" title="membrane">membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=electro-spinning%20method" title=" electro-spinning method"> electro-spinning method</a>, <a href="https://publications.waset.org/abstracts/search?q=Yttria-Stabilized%20Zirconia" title=" Yttria-Stabilized Zirconia"> Yttria-Stabilized Zirconia</a>, <a href="https://publications.waset.org/abstracts/search?q=fuel%20cells" title=" fuel cells"> fuel cells</a> </p> <a href="https://publications.waset.org/abstracts/8065/experimental-investigation-of-membrane-performance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8065.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">370</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">783</span> Effect of Burdock Root Extract Concentration on Physiochemical Property of Coated Jasmine Rice by Using Top-Spay Fluidized Bed Coating Technique </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Donludee%20Jaisut">Donludee Jaisut</a>, <a href="https://publications.waset.org/abstracts/search?q=Norihisa%20Kato"> Norihisa Kato</a>, <a href="https://publications.waset.org/abstracts/search?q=Thanutchaporn%20Kumrungsee"> Thanutchaporn Kumrungsee</a>, <a href="https://publications.waset.org/abstracts/search?q=Kiyoshi%20Kawai"> Kiyoshi Kawai</a>, <a href="https://publications.waset.org/abstracts/search?q=Somkiat%20Prachayawarakorn"> Somkiat Prachayawarakorn</a>, <a href="https://publications.waset.org/abstracts/search?q=Patchalee%20Tungtrakul"> Patchalee Tungtrakul </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Jasmine Rice is a principle food of Thai people. However, glycemic index of jasmine rice is in high level, risk of type II diabetes after consuming. Burdock root is a good source of non-starch polysaccharides such as inulin. Inulin acts as prebiotic and helps reduce blood-sugar level. The purpose of this research was to reduce digestion rate of jasmine rice by coating burdock root extract on rice surface, using top-spay fluidized bed coating technique. Coating experiments were performed by spraying burdock root solution onto Jasmine rice kernels (Khao Dawk Mali-105; KDML), which had an initial moisture content of 11.6% wet basis, suspended in the fluidized bed. The experimental conditions were: solution spray rates of 31.7 mL/min, atomization pressure of 1.5 bar, spray time of 10 min, time of drying after spraying of 30 s, superficial air velocity of 3.2 m/s and drying temperatures of 60°C. The coated rice quality was evaluated in terms of the moisture content, texture, whiteness and digestion rate. The results showed that initial and final moisture contents of samples were the same in concentration 8% (v/v) and 10% (v/v). The texture was insignificantly changed from that of uncoated sample. The whiteness values were varied on concentration of burdock root extract. Coated samples were slower digested. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=burdock%20root" title="burdock root">burdock root</a>, <a href="https://publications.waset.org/abstracts/search?q=digestion" title=" digestion"> digestion</a>, <a href="https://publications.waset.org/abstracts/search?q=drying" title=" drying"> drying</a>, <a href="https://publications.waset.org/abstracts/search?q=rice" title=" rice"> rice</a> </p> <a href="https://publications.waset.org/abstracts/60231/effect-of-burdock-root-extract-concentration-on-physiochemical-property-of-coated-jasmine-rice-by-using-top-spay-fluidized-bed-coating-technique" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60231.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">293</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">782</span> Synthesis of AgInS2–ZnS at Low Temperature with Tunable Photoluminescence for Photovoltaic Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nitu%20Chhikaraa">Nitu Chhikaraa</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20B.%20Tyagia"> S. B. Tyagia</a>, <a href="https://publications.waset.org/abstracts/search?q=Kiran%20Jainb"> Kiran Jainb</a>, <a href="https://publications.waset.org/abstracts/search?q=Mamta%20Kharkwala"> Mamta Kharkwala</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The I–III–VI2 semiconductor Nanocrystals such as AgInS2 have great interest for various applications such as optical devices (solar cell and LED), cellular Imaging and bio tagging etc. we synthesized the phase and shape controlled chalcopyrite AgInS2 (AIS) colloidal nanoparticles by thermal decomposition of metal xanthate at low temperature in an organic solvent’s containing surfactant molecules. Here we are focusing on enhancements of photoluminescence of AgInS2 Nps by coating of ZnS at low temperature for application of optical devices. The size of core shell Nps was less than 50nm.by increasing the time and temperature the emission of the wavelength of the Zn coated AgInS2 Nps could be adjusted from visible region to IR the QY of the AgInS2 Nps could be increased by coating of ZnS from 20 to 80% which was reasonably good as compared to those of the previously reported. The synthesized NPs were characterized by PL, UV, XRD and TEM. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=PL" title="PL">PL</a>, <a href="https://publications.waset.org/abstracts/search?q=UV" title=" UV"> UV</a>, <a href="https://publications.waset.org/abstracts/search?q=XRD" title=" XRD"> XRD</a>, <a href="https://publications.waset.org/abstracts/search?q=TEM" title=" TEM"> TEM</a> </p> <a href="https://publications.waset.org/abstracts/19343/synthesis-of-agins2-zns-at-low-temperature-with-tunable-photoluminescence-for-photovoltaic-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19343.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">376</span> </span> </div> </div> <ul class="pagination"> <li class="page-item"><a class="page-link" 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