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gelatinization temperature</title> <meta name="description" content="Search results for: gelatinization temperature"> <meta name="keywords" content="gelatinization temperature"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="gelatinization temperature"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 7003</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: gelatinization temperature</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">7003</span> Influence of [Emim][OAc] and Water on Gelatinization Process and Interactions with Starch</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shajaratuldur%20Ismail">Shajaratuldur Ismail</a>, <a href="https://publications.waset.org/abstracts/search?q=Nurlidia%20Mansor"> Nurlidia Mansor</a>, <a href="https://publications.waset.org/abstracts/search?q=Zakaria%20Man"> Zakaria Man</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Thermoplastic starch (TPS) plasticized by 1-ethyl-3-methylimidazolium acetate [Emim][OAc] were obtained through gelatinization process. The gelatinization process occurred in the presence of water and [Emim][OAc] as plasticizer at high temperature (90˚C). The influence of [Emim][OAc] and water on the gelatinization and interactions with starch have been studied over a range of compositions. The homogenous mass was obtained for the samples containing 35, 40 and 43.5 % of water contents which showed that water plays important role in gelatinization process. Detailed IR spectroscopy analysis showed decrease in hydrogen bonding intensity and strong interaction between acetate anion in [Emim][OAc] and starch hydroxyl groups in the presence of [Emim][OAc]. Starch-[Emim][OAc]-water mixture at 10-3-8.7 presented homogenous mass, less hydrogen bonding intensity and strong interaction between acetate anion in [Emim][OAc] and starch hydroxyl groups. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=starch" title="starch">starch</a>, <a href="https://publications.waset.org/abstracts/search?q=ionic%20liquid" title=" ionic liquid"> ionic liquid</a>, <a href="https://publications.waset.org/abstracts/search?q=1-ethyl-3-methylimidazolium%20acetate" title=" 1-ethyl-3-methylimidazolium acetate"> 1-ethyl-3-methylimidazolium acetate</a>, <a href="https://publications.waset.org/abstracts/search?q=plasticizer" title=" plasticizer"> plasticizer</a>, <a href="https://publications.waset.org/abstracts/search?q=gelatinization" title=" gelatinization"> gelatinization</a>, <a href="https://publications.waset.org/abstracts/search?q=IR%20spectroscopy" title=" IR spectroscopy"> IR spectroscopy</a> </p> <a href="https://publications.waset.org/abstracts/47028/influence-of-emimoac-and-water-on-gelatinization-process-and-interactions-with-starch" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47028.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">229</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">7002</span> Optimal Consume of NaOH in Starches Gelatinization for Froth Flotation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Andr%C3%A9%20C.%20Silva">André C. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=D%C3%A9bora%20N.%20Sousa"> Débora N. Sousa</a>, <a href="https://publications.waset.org/abstracts/search?q=Elenice%20M.%20S.%20Silva"> Elenice M. S. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Thales%20P.%20Fontes"> Thales P. Fontes</a>, <a href="https://publications.waset.org/abstracts/search?q=Raphael%20S.%20Tomaz"> Raphael S. Tomaz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Starches are widely used as depressant in froth flotation operations in Brazil due to their efficiency, increasing the selectivity in the inverse flotation of quartz depressing iron ore. Starches market have been growing and improving in recent years, leading to better products attending the requirements of the mineral industry. The major source of starch used for iron ore is corn starch, which needs to be gelatinized with sodium hydroxide (NaOH) prior to use. This stage has a direct impact on industrials costs, once the lowest consumption of NaOH in gelatinization provides better control of the pH in the froth flotation and reduces the amount of electrolytes present in the pulp. In order to evaluate the gelatinization degree of different starches and flour were subjected to the addiction of NaOH and temperature variation experiments. Samples of starch (corn, cassava, HIPIX 100, HIPIX 101 and HIPIX 102 commercialized by Ingredion) and flour (cassava and potato) were tested. The starch samples were characterized through Scanning Electronic Microscopy and the amylose content were determined through spectrometry, swelling and solubility tests. The gelatinization was carried out through titration with NaOH, keeping the solution temperature constant at 40 <sup>o</sup>C. At the end of the tests, the optimal amount of NaOH consumed to gelatinize the starch or flour from different botanical sources was established and a correlation between the content of amylopectin in the starch and the starch/NaOH ratio needed for its gelatinization. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=froth%20flotation" title="froth flotation">froth flotation</a>, <a href="https://publications.waset.org/abstracts/search?q=gelatinization" title=" gelatinization"> gelatinization</a>, <a href="https://publications.waset.org/abstracts/search?q=sodium%20hydroxide" title=" sodium hydroxide"> sodium hydroxide</a>, <a href="https://publications.waset.org/abstracts/search?q=starches%20and%20flours" title=" starches and flours"> starches and flours</a> </p> <a href="https://publications.waset.org/abstracts/50896/optimal-consume-of-naoh-in-starches-gelatinization-for-froth-flotation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50896.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">363</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">7001</span> The Hydrotrope-Mediated, Low-Temperature, Aqueous Dissolution of Maize Starch</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jeroen%20Vinkx">Jeroen Vinkx</a>, <a href="https://publications.waset.org/abstracts/search?q=Jan%20A.%20Delcour"> Jan A. Delcour</a>, <a href="https://publications.waset.org/abstracts/search?q=Bart%20Goderis"> Bart Goderis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Complete aqueous dissolution of starch is notoriously difficult. A high-temperature autoclaving process is necessary, followed by cooling the solution below its boiling point. The cooled solution is inherently unstable over time. Gelation and retrogradation processes, along with aggregation-induced by undissolved starch remnants, result in starch precipitation. We recently observed the spontaneous gelatinization of native maize starch (MS) in aqueous sodium salicylate (NaSal) solutions at room temperature. A hydrotropic mode of solubilization is hypothesized. Differential scanning calorimetry (DSC) and polarized optical microscopy (POM) of starch dispersions in NaSal solution were used to demonstrate the room temperature gelatinization of MS at different concentrations of MS and NaSal. The DSC gelatinization peak shifts to lower temperatures, and the gelatinization enthalpy decreases with increasing NaSal concentration. POM images confirm the same trend through the disappearance of the ‘Maltese cross’ interference pattern of starch granules. The minimal NaSal concentration to induce complete room temperature dissolution of MS was found to be around 15-20 wt%. The MS content of the dispersion has little influence on the amount of NaSal needed to dissolve it. The effect of the NaSal solution on the MS molecular weight was checked with HPSEC. It is speculated that, because of its amphiphilic character, NaSal enhances the solubility of MS in water by association with the more hydrophobic MS moieties, much like urea, which has also been used to enhance starch dissolution in alkaline aqueous media. As such small molecules do not tend to form micelles in water, they are called hydrotropes rather than surfactants. A minimal hydrotrope concentration (MHC) is necessary for the hydrotropes to structure themselves in water, resulting in a higher solubility of MS. This is the case for the system MS/NaSal/H₂O. Further investigations into the putative hydrotropic dissolution mechanism are necessary. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hydrotrope" title="hydrotrope">hydrotrope</a>, <a href="https://publications.waset.org/abstracts/search?q=dissolution" title=" dissolution"> dissolution</a>, <a href="https://publications.waset.org/abstracts/search?q=maize%20starch" title=" maize starch"> maize starch</a>, <a href="https://publications.waset.org/abstracts/search?q=sodium%20salicylate" title=" sodium salicylate"> sodium salicylate</a>, <a href="https://publications.waset.org/abstracts/search?q=gelatinization" title=" gelatinization"> gelatinization</a> </p> <a href="https://publications.waset.org/abstracts/137467/the-hydrotrope-mediated-low-temperature-aqueous-dissolution-of-maize-starch" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/137467.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">187</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">7000</span> Characteristics of Oil-In-Water Emulsion Stabilized with Pregelatinized Waxy Rice Starch</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20Yulianingsih">R. Yulianingsih</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Gohtani"> S. Gohtani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Characteristics of pregelatinized waxy rice starch (PWR) gelatinized at different temperatures (65, 75, and 85 °C, abbreviated as PWR 65, 75 and 85 respectively) and their emulsion-stabilizing properties at different starch concentrations (3, 5, 7, and 9%) were studied. The yield stress and consistency index value of PWR solution increased with an increase in starch concentration. The pseudoplasticity of PWR 65 solution increased and that for both PWR 75 and 85 solution decreased with an increase in starch concentration. Small angle X-ray scattering (SAXS) profiles analyzed by Kratky Plot indicated that PWR 65 is natively unfolded particles while PWR 75 and 85 are the globular particles. The characteristics of emulsions stabilized with PWR were influenced by the temperature of gelatinization process and starch concentration. Elevated concentration of starch decreased the value of yield stress and increased the consistency index. PWR 65 produce stable emulsion to creaming at starch concentrations more than 5%, while PWR 85 is able to produce stable emulsion to both creaming and coalescence of droplets. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=emulsion" title="emulsion">emulsion</a>, <a href="https://publications.waset.org/abstracts/search?q=gelatinization%20temperature" title=" gelatinization temperature"> gelatinization temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=rheology" title=" rheology"> rheology</a>, <a href="https://publications.waset.org/abstracts/search?q=small-angle%20X-ray%20scattering" title=" small-angle X-ray scattering"> small-angle X-ray scattering</a>, <a href="https://publications.waset.org/abstracts/search?q=waxy%20rice%20starch" title=" waxy rice starch"> waxy rice starch</a> </p> <a href="https://publications.waset.org/abstracts/87611/characteristics-of-oil-in-water-emulsion-stabilized-with-pregelatinized-waxy-rice-starch" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/87611.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">157</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">6999</span> Physicochemical and Thermal Characterization of Starch from Three Different Plantain Cultivars in Puerto Rico</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Carmen%20E.%20P%C3%A9rez-Donado">Carmen E. Pérez-Donado</a>, <a href="https://publications.waset.org/abstracts/search?q=Fernando%20P%C3%A9rez-Mu%C3%B1oz"> Fernando Pérez-Muñoz</a>, <a href="https://publications.waset.org/abstracts/search?q=Rosa%20N.%20Ch%C3%A1vez-J%C3%A1uregui"> Rosa N. Chávez-Jáuregui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Plantain contains starch as the majority component and represents a relevant source of this carbohydrate. Starches from different cultivars of plantain and bananas have been studied for industrialization purposes due to their morphological and thermal characteristics and their influence on food products. This study aimed to characterize the physical, chemical, and thermal properties of starch from three different plantains cultivated in Puerto Rico: Maricongo, Maiden, and FHIA 20. Amylose and amylopectin content, color, granular size, morphology, and thermal properties were determined. According to the content of amylose in starches, FHIA 20 starch presented minor content of the three cultivars studied. In terms of color, Maiden and FHIA 20 starch exhibited a significantly higher whiteness index comparing their values with Maricongo starch. The starches of the three cultivars had an elongated-ovoid morphology, with a smooth surface and a non-porous appearance. Regardless of similarities in their morphology, FHIA 20 showed a lower aspect ratio, which meant that their granules tended to be more elongated granules. Comparing the thermal properties of starches, it was found that the initial gelatinization temperature of the starch of the cultivars was similar. However, the final gelatinization temperatures of the starches belonging to the cultivars Maricongo (79.69°C) and Maiden (77.40°C) were similar, whereas FHIA 20 starch presented a noticeably higher final gelatinization temperature (87.95°C) and transition enthalpy. Despite source similarities, starches from plantain cultivars showed differences in their composition and thermal behavior. Therefore, this represents an opportunity to diversify their use in food-related applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aspect%20ratio" title="aspect ratio">aspect ratio</a>, <a href="https://publications.waset.org/abstracts/search?q=morphology" title=" morphology"> morphology</a>, <a href="https://publications.waset.org/abstracts/search?q=Musa%20spp." title=" Musa spp."> Musa spp.</a>, <a href="https://publications.waset.org/abstracts/search?q=starch" title=" starch"> starch</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20properties" title=" thermal properties"> thermal properties</a> </p> <a href="https://publications.waset.org/abstracts/138722/physicochemical-and-thermal-characterization-of-starch-from-three-different-plantain-cultivars-in-puerto-rico" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138722.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">265</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">6998</span> Physicochemical Characteristics of Rice Starch Chainat 1 Variety by Physical Modification</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Orose%20Rugchati">Orose Rugchati</a>, <a href="https://publications.waset.org/abstracts/search?q=Sarawut%20Wattanawongpitak"> Sarawut Wattanawongpitak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Chainat 1 variety (CN1) of rice, which generally has high amylose starch, is distributed in the lower part of Northern Thailand. CN1 rice starch can be used in both food and non-food products. In this research, the CN1 rice starch from the wet-milling process was prepared by Pre-Gelatinization (Heat-Moisture Treatments, HMT) under different conditions: percentage of moisture contents (20% and 30%) and duration time in minutes (0, 30, 60, and 90) at a specific temperature 110°C. The physicochemical characteristics of CN1 rice starch modification, such as amylose content, viscosity, swelling, and solubility property, were evaluated and compared with native CN1 rice starch. The results showed that modification CN1 rice starch tends to have some characteristics better than native starch. The appearance color and starch granule of modified CN1 by HMT have more effective characteristics than native starch when increased duration time. The duration time and moisture content are significant factors to the CN1 starch characteristic by HMT. Moreover, physical modification of CN1 starch by HMT can be described as a modified rice starch providing in many applications and the advantage of biodegradability development. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=physicochemical%20characteristics" title="physicochemical characteristics">physicochemical characteristics</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20modification" title=" physical modification"> physical modification</a>, <a href="https://publications.waset.org/abstracts/search?q=pre-gelatinization" title=" pre-gelatinization"> pre-gelatinization</a>, <a href="https://publications.waset.org/abstracts/search?q=Heat-Moisture%20Treatments" title=" Heat-Moisture Treatments"> Heat-Moisture Treatments</a>, <a href="https://publications.waset.org/abstracts/search?q=rice%20starch" title=" rice starch"> rice starch</a>, <a href="https://publications.waset.org/abstracts/search?q=Chainat%201%20variety%20%28CN1%29" title=" Chainat 1 variety (CN1)"> Chainat 1 variety (CN1)</a> </p> <a href="https://publications.waset.org/abstracts/107385/physicochemical-characteristics-of-rice-starch-chainat-1-variety-by-physical-modification" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/107385.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">155</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">6997</span> Changes of Chemical Composition and Physicochemical Properties of Banana during Ethylene-Induced Ripening</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chiun-C.R.%20Wang">Chiun-C.R. Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Po-Wen%20Yen"> Po-Wen Yen</a>, <a href="https://publications.waset.org/abstracts/search?q=Chien-Chun%20Huang"> Chien-Chun Huang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Banana is produced in large quantities in tropical and subtropical areas. Banana is one of the important fruits which constitute a valuable source of energy, vitamins and minerals. The ripening and maturity standards of banana vary from country to country depending on the expected shelf life of market. The compositions of bananas change dramatically during ethylene-induced ripening that are categorized as nutritive values and commercial utilization. Nevertheless, there is few study reporting the changes of physicochemical properties of banana starch during ethylene-induced ripening of green banana. The objectives of this study were to investigate the changes of chemical composition and enzyme activity of banana and physicochemical properties of banana starch during ethylene-induced ripening. Green bananas were harvested and ripened by ethylene gas at low temperature (15℃) for seven stages. At each stage, banana was sliced and freeze-dried for banana flour preparation. The changes of total starch, resistant starch, chemical compositions, physicochemical properties, activity of amylase, polyphenolic oxidase (PPO) and phenylalanine ammonia lyase (PAL) of banana were analyzed each stage during ripening. The banana starch was isolated and analyzed for gelatinization properties, pasting properties and microscopic appearance each stage of ripening. The results indicated that the highest total starch and resistant starch content of green banana were 76.2% and 34.6%, respectively at the harvest stage. Both total starch and resistant starch content were significantly declined to 25.3% and 8.8%, respectively at the seventh stage. Soluble sugars content of banana increased from 1.21% at harvest stage to 37.72% at seventh stage during ethylene-induced ripening. Swelling power of banana flour decreased with the progress of ripening stage, but solubility increased. These results strongly related with the decreases of starch content of banana flour during ethylene-induced ripening. Both water insoluble and alcohol insoluble solids of banana flour decreased with the progress of ripening stage. Both activity of PPO and PAL increased, but the total free phenolics content decreased, with the increases of ripening stages. As ripening stage extended, the gelatinization enthalpy of banana starch significantly decreased from 15.31 J/g at the harvest stage to 10.55 J/g at the seventh stage. The peak viscosity and setback increased with the progress of ripening stages in the pasting properties of banana starch. The highest final viscosity, 5701 RVU, of banana starch slurry was found at the seventh stage. The scanning electron micrograph of banana starch showed the shapes of banana starch appeared to be round and elongated forms, ranging in 10-50 μm at the harvest stage. As the banana closed to ripe status, some parallel striations were observed on the surface of banana starch granular which could be caused by enzyme reaction during ripening. These results inferred that the highest resistant starch was found in the green banana at the harvest stage could be considered as a potential application of healthy foods. The changes of chemical composition and physicochemical properties of banana could be caused by the hydrolysis of enzymes during the ethylene-induced ripening treatment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ethylene-induced%20ripening" title="ethylene-induced ripening">ethylene-induced ripening</a>, <a href="https://publications.waset.org/abstracts/search?q=banana%20starch" title=" banana starch"> banana starch</a>, <a href="https://publications.waset.org/abstracts/search?q=resistant%20starch" title=" resistant starch"> resistant starch</a>, <a href="https://publications.waset.org/abstracts/search?q=soluble%20sugars" title=" soluble sugars"> soluble sugars</a>, <a href="https://publications.waset.org/abstracts/search?q=physicochemical%20properties" title=" physicochemical properties"> physicochemical properties</a>, <a href="https://publications.waset.org/abstracts/search?q=gelatinization%20enthalpy" title=" gelatinization enthalpy"> gelatinization enthalpy</a>, <a href="https://publications.waset.org/abstracts/search?q=pasting%20characteristics" title=" pasting characteristics"> pasting characteristics</a>, <a href="https://publications.waset.org/abstracts/search?q=microscopic%20appearance" title=" microscopic appearance"> microscopic appearance</a> </p> <a href="https://publications.waset.org/abstracts/24689/changes-of-chemical-composition-and-physicochemical-properties-of-banana-during-ethylene-induced-ripening" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24689.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">474</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">6996</span> Effect of Flour Concentration and Retrogradation Treatment on Physical Properties of Instant Sinlek Brown Rice</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Supat%20Chaiyakul">Supat Chaiyakul</a>, <a href="https://publications.waset.org/abstracts/search?q=Direk%20Sukkasem"> Direk Sukkasem</a>, <a href="https://publications.waset.org/abstracts/search?q=Patnachapa%20Natthapanpaisith"> Patnachapa Natthapanpaisith</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Sinlek rice flour beverage or instant product is a dietary supplement for dysphagia, or difficulty swallowing. It is also consumed by individuals who need to consume supplements to maintain their calorific needs. This product provides protein, fat, iron, and a high concentration of carbohydrate from rice flour. However, the application of native flour is limited due to its high viscosity. Starch modification by controlling starch retrogradation was used in this study. The research studies the effects of rice flour concentration and retrogradation treatment on the physical properties of instant Sinlek brown rice. The native rice flour, gelatinized rice flour, and flour gels retrograded under 4 °C for 3 and 7 days were investigated. From the statistical results, significant differences between native and retrograded flour were observed. The concentration of rice flour was the main factor influencing the swelling power, solubility, and pasting properties. With the increase in rice flour content from 10 to 15%, swelling power, peak viscosity, trough, and final viscosity decreased; but, solubility, pasting temperature, peak time, breakdown, and setback increased. The peak time, pasting temperature, peak viscosity, trough, and final viscosity decreased as the storage period increased from 3 to 7 days. The retrograded rice flour powders had lower pasting temperature, peak viscosity, breakdown, and final viscosity than the gelatinized and native flour powders. Reduction of starch viscosity by gelatinization and controlling starch retrogradation could allow for increased quantities of rice flour in instant rice beverages. Also, the treatment could increase the energy and nutrient densities of rice beverages without affecting the viscosity of this product. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=instant%20rice" title="instant rice">instant rice</a>, <a href="https://publications.waset.org/abstracts/search?q=pasting%20properties" title=" pasting properties"> pasting properties</a>, <a href="https://publications.waset.org/abstracts/search?q=pregelatinization" title=" pregelatinization"> pregelatinization</a>, <a href="https://publications.waset.org/abstracts/search?q=retrogradation" title=" retrogradation"> retrogradation</a> </p> <a href="https://publications.waset.org/abstracts/57640/effect-of-flour-concentration-and-retrogradation-treatment-on-physical-properties-of-instant-sinlek-brown-rice" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57640.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">240</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">6995</span> Preparation and Properties of Chloroacetated Natural Rubber Rubber Foam Using Corn Starch as Curing Agent</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ploenpit%20Boochathum">Ploenpit Boochathum</a>, <a href="https://publications.waset.org/abstracts/search?q=Pitchayanad%20Kaolim"> Pitchayanad Kaolim</a>, <a href="https://publications.waset.org/abstracts/search?q=Phimjutha%20Srisangkaew"> Phimjutha Srisangkaew</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In general, rubber foam is produced based on the sulfur curing system. However, the remaining sulfur in the rubber product waste is burned to sulfur dioxide gas causing the environment pollution. To avoid using sulfur as curing agent in the rubber foam products, this research work proposes non-sulfur curing system by using corn starch as a curing agent. The ether crosslinks were proposed to be produced via the functional bonding between hydroxyl groups of the starch molecules and chloroacetate groups added on the natural rubber molecules. The chloroacetated natural rubber (CNR) latex was prepared via the epoxidation reaction of the concentrated natural rubber latex, subsequently, epoxy rings were attacked by chloroacetic acid to produce hydroxyl groups and chloroacetate groups on the rubber molecules. Foaming agent namely NaHCO3 was selected to add in the CNR latex due to the low decomposition temperature at about 50°C. The appropriate curing temperature was assigned to be 90°C that is above gelatinization temperature; 60-70°C, of starch. The effect of weight ratio of starch, i.e., 0 phr, 3 phr and 5 phr, on the physical properties of CNR rubber foam was investigated. It was found that density reduced from 0.81 g/cm3 for 0 phr to 0.75 g/cm3 for 3 phr and 0.79 g/cm3 for 5 phr. The ability to return to its original thickness after prolonged compressive stresses of CNR rubber foam cured with starch loading of 5 phr was found to be considerably better than that of CNR rubber foam cured with starch 3 phr and CNR rubber foam without addition of starch according to the compression set that was determined to decrease from 66.67% to 40% and 26.67% with the increase loading of starch. The mechanical properties including tensile strength and modulus of CNR rubber foams cured using starch were determined to increase except that the elongation at break was found to decrease. In addition, all mechanical properties of CNR rubber foams cured with the starch 3 phr and 5 phr were found to be slightly different and drastically higher than those of CNR rubber foam without the addition of starch. This research work indicates that starch can be applicable as a curing agent for CNR rubber. This is confirmed by the increase of the elastic modulus (G') of CNR rubber foams that was cured with the starch over the CNR rubber foam without curing agent. This type of rubber foam is believed to be one of the biodegradable and environment-friendly product that can be cured at low temperature of 90°C. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chloroacetated%20natural%20rubber" title="chloroacetated natural rubber">chloroacetated natural rubber</a>, <a href="https://publications.waset.org/abstracts/search?q=corn%20starch" title=" corn starch"> corn starch</a>, <a href="https://publications.waset.org/abstracts/search?q=non-sulfur%20curing%20system" title=" non-sulfur curing system"> non-sulfur curing system</a>, <a href="https://publications.waset.org/abstracts/search?q=rubber%20foam" title=" rubber foam"> rubber foam</a> </p> <a href="https://publications.waset.org/abstracts/60241/preparation-and-properties-of-chloroacetated-natural-rubber-rubber-foam-using-corn-starch-as-curing-agent" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60241.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">317</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">6994</span> Effect of Microstructure on Transition Temperature of Austempered Ductile Iron (ADI)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Ozel">A. Ozel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The ductile to brittle transition temperature is a very important criterion that is used for selection of materials in some applications, especially in low-temperature conditions. For that reason, in this study transition temperature of as-cast and austempered unalloyed ductile iron in the temperature interval from -60 to +100 degrees C have been investigated. The microstructures of samples were examined by light microscope. The impact energy values obtained from the experiments were found to depend on the austempering time and temperature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Austempered%20Ductile%20Iron%20%28ADI%29" title="Austempered Ductile Iron (ADI)">Austempered Ductile Iron (ADI)</a>, <a href="https://publications.waset.org/abstracts/search?q=Charpy%20test" title=" Charpy test"> Charpy test</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a>, <a href="https://publications.waset.org/abstracts/search?q=transition%20temperature" title=" transition temperature "> transition temperature </a> </p> <a href="https://publications.waset.org/abstracts/28406/effect-of-microstructure-on-transition-temperature-of-austempered-ductile-iron-adi" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28406.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">503</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">6993</span> The Torah Scroll of the National Library of the Kingdom of Morocco: Parchment Support and Black Ink Analytical Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Oubelkacem%20Yacine">Oubelkacem Yacine</a>, <a href="https://publications.waset.org/abstracts/search?q=El%20Bast%20Hassan"> El Bast Hassan</a>, <a href="https://publications.waset.org/abstracts/search?q=El%20Bakkali%20Abdelmajid"> El Bakkali Abdelmajid</a>, <a href="https://publications.waset.org/abstracts/search?q=Lamhasni%20Taibi"> Lamhasni Taibi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ettakni%20Mahmoud"> Ettakni Mahmoud</a>, <a href="https://publications.waset.org/abstracts/search?q=Ait%20Lyazidi%20Saadia"> Ait Lyazidi Saadia</a>, <a href="https://publications.waset.org/abstracts/search?q=Haddad%20Mustapha"> Haddad Mustapha</a>, <a href="https://publications.waset.org/abstracts/search?q=Ben-Ncer%20Abdelouahed"> Ben-Ncer Abdelouahed</a>, <a href="https://publications.waset.org/abstracts/search?q=El%20Ferrane%20Mohammed"> El Ferrane Mohammed</a>, <a href="https://publications.waset.org/abstracts/search?q=Boufarra%20Abdelkrim"> Boufarra Abdelkrim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present work relates to an on-site and completely non-invasive investigation of one of the most famous west Mediterranean Torah Scroll housed at the National Library of the Kingdom of Morocco. The scroll is 26 m long and consists of 143 parchment sheets of 59 cm x 19 cm, exhibiting only black writings; it is of unknown age. The artifact has been restored by the curator staff of the library. The investigation exploring separately the parchment support and the writing black ink aims at: i) the examination of the parchment conservation/degradation state, ii) the identification of the black ink and iii) the identification of the parchment handcrafting materials. For this purpose, the analyses have been based on combining all of elemental XRF and structural Raman, ATR-FT Infrared Red and Fiber Optical Reflectance spectroscopies, in addition to chroma-metric and pH measurements. pH measurements showing values around 6.5 are in concordance with the absence of any visual corrosion related to the parchment acidity. However, on the basis of the relative intensities and frequency shift of amid I (AI) and amid II (AII) vibrational bands of the collagen, ATR-FTIR spectra revealed diffuse hydrolysis and gelatinization of the parchment writing support; diffuse and non-homogeny degradation by gelatinization has been also confirmed by the IG gelatinization index deduced from the NIR bands on the FOR spectra. This IG index, defined as the ratio I (6860 cm-1) / I (6685 cm-1), ranges in the interval 0.98 – 1 and highlights collagen degradation at the molecular level. Sequentially Shifted Excitation Raman measurements (SSERS) crossed to X-ray fluorescence (XRF) ones on the black writings revealed that the black ink used is an iron-copper gall one, while FOR spectra are typical of pure metal gall inks. These later reflectance measurements exclude, thus, any intentional addition of carbon black to the ink recipe. Moreover, no lead white had been used while pre-drawing the writing lines. On another side, ATR-FTIR measurements highlighted the presence of oxalates as ink degradation products. Considering the parchment handcrafting, the combination of XRF and ATR-FTIR measurements led to the assumption that this writing support had been prepared according to ancient Middle East practices; the parchment infrared fingerprint seems identical to that of the Dead Sea scroll. The present multi-technical analyses are the first ones performed on an ancient Judaic written parchment of Morocco; it is under furthering. The investigation will be extended to other parchments belonging to the Jewish Cultural Heritage Museum of Morocco in Casablanca. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=torah%20scroll" title="torah scroll">torah scroll</a>, <a href="https://publications.waset.org/abstracts/search?q=parchment" title=" parchment"> parchment</a>, <a href="https://publications.waset.org/abstracts/search?q=black%20ink" title=" black ink"> black ink</a>, <a href="https://publications.waset.org/abstracts/search?q=non-invasive%20analyses" title=" non-invasive analyses"> non-invasive analyses</a>, <a href="https://publications.waset.org/abstracts/search?q=XRF%2FATR-FTIR%2FRAMAN%2FFORS" title=" XRF/ATR-FTIR/RAMAN/FORS"> XRF/ATR-FTIR/RAMAN/FORS</a> </p> <a href="https://publications.waset.org/abstracts/167592/the-torah-scroll-of-the-national-library-of-the-kingdom-of-morocco-parchment-support-and-black-ink-analytical-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/167592.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">85</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">6992</span> Structural Changes and Formation of Calcium Complexes in Corn Starch Processed by Nixtamalization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ar%C3%A1mbula-Villa%20Ger%C3%B3nimo">Arámbula-Villa Gerónimo</a>, <a href="https://publications.waset.org/abstracts/search?q=Garc%C3%ADa-Lara%20Kenia%20Y."> García-Lara Kenia Y.</a>, <a href="https://publications.waset.org/abstracts/search?q=Figueroa-C%C3%A1rdenas%20J.%20D."> Figueroa-Cárdenas J. D.</a>, <a href="https://publications.waset.org/abstracts/search?q=P%C3%A9rez-Robles%20J.%20F."> Pérez-Robles J. F.</a>, <a href="https://publications.waset.org/abstracts/search?q=Jim%C3%A9nez-Sandoval%20S."> Jiménez-Sandoval S.</a>, <a href="https://publications.waset.org/abstracts/search?q=Salazar-L%C3%B3pez%20R."> Salazar-López R.</a>, <a href="https://publications.waset.org/abstracts/search?q=Herrera-Corredor%20J.%20A."> Herrera-Corredor J. A.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The nixtamalization process (thermal-alkaline method) improves the nutritional part of the corn grain. In this process, the using of Ca(OH)₂ is basic, although the chemical mechanisms between this alkali and the carbohydrates (starch), proteins, lipids, and fiber have not been fully identified. In this study, the native corn starch was taken as a model, and it was subjected to cooking with different concentrations of lime (nixtamalization process) and specific studies of FTIR and XRD were carried out to identify the formation of chemical compounds, and the physical, physicochemical, rheological (paste) and structural properties of material obtained were determined. The FTIR spectra showed the formation of calcium-starch complexes. The treatments with Ca(OH)₂ showed a band shift towards 1675 cm⁻¹ and a band in 1436 cm⁻¹ (COO⁻), indicating the oxidation of starch. Three bands were identified (1575, 1550, and 1540 cm⁻¹) characteristics of carboxylic acid salts for three types of coordinated structures: monodentate, pseudo-bridged, and bidentate. The XRD spectra of starch treated with Ca(OH)₂ showed a peak corresponding to CaCO₃ (29.40°). The oxidation of starch was favored with low concentrations of Ca(OH)₂, producing carboxyl and carbonyl groups and increasing the residual CaCO₃. The increased concentration of Ca(OH)₂ showed the formation of calcium carboxylates, with a decrease in relative crystallinity and residual CaCO₃. Samples with low concentrations of Ca(OH)₂ slowed the onset of gelatinization and increased the swelling of the granules and the peak viscosity. The higher concentrations of Ca(OH)₂ difficulted the water absorption and decreased the viscosity rate and peak viscosity. These results can be used to improve the quality characteristics of the dough and tortillas and to get better acceptance by consumers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=maize%20starch" title="maize starch">maize starch</a>, <a href="https://publications.waset.org/abstracts/search?q=nixtamalization" title=" nixtamalization"> nixtamalization</a>, <a href="https://publications.waset.org/abstracts/search?q=gelatinization" title=" gelatinization"> gelatinization</a>, <a href="https://publications.waset.org/abstracts/search?q=calcium%20carboxylates" title=" calcium carboxylates"> calcium carboxylates</a> </p> <a href="https://publications.waset.org/abstracts/161702/structural-changes-and-formation-of-calcium-complexes-in-corn-starch-processed-by-nixtamalization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161702.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">95</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">6991</span> Effect of Maturation on the Characteristics and Physicochemical Properties of Banana and Its Starch</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chien-Chun%20Huang">Chien-Chun Huang</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20W.%20Yuan"> P. W. Yuan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Banana is one of the important fruits which constitute a valuable source of energy, vitamins and minerals and an important food component throughout the world. The fruit ripening and maturity standards vary from country to country depending on the expected shelf life of market. During ripening there are changes in appearance, texture and chemical composition of banana. The changes of component of banana during ethylene-induced ripening are categorized as nutritive values and commercial utilization. The objectives of this study were to investigate the changes of chemical composition and physicochemical properties of banana during ethylene-induced ripening. Green bananas were harvested and ripened by ethylene gas at low temperature (15℃) for seven stages. At each stage, banana was sliced and freeze-dried for banana flour preparation. The changes of total starch, resistant starch, chemical compositions, physicochemical properties, activity of amylase, polyphenolic oxidase (PPO) and phenylalanine ammonia lyase (PAL) of banana were analyzed each stage during ripening. The banana starch was isolated and analyzed for gelatinization properties, pasting properties and microscopic appearance each stage of ripening. The results indicated that the highest total starch and resistant starch content of green banana were 76.2% and 34.6%, respectively at the harvest stage. Both total starch and resistant starch content were significantly declined to 25.3% and 8.8%, respectively at the seventh stage. Soluble sugars content of banana increased from 1.21% at harvest stage to 37.72% at seventh stage during ethylene-induced ripening. Swelling power of banana flour decreased with the progress of ripening stage, but solubility increased. These results strongly related with the decreases of starch content of banana flour during ethylene-induced ripening. Both water insoluble and alcohol insoluble solids of banana flour decreased with the progress of ripening stage. Both activity of PPO and PAL increased, but the total free phenolics content decreased, with the increases of ripening stages. As ripening stage extended, the gelatinization enthalpy of banana starch significantly decreased from 15.31 J/g at the harvest stage to 10.55 J/g at the seventh stage. The peak viscosity and setback increased with the progress of ripening stages in the pasting properties of banana starch. The highest final viscosity, 5701 RVU, of banana starch slurry was found at the seventh stage. The scanning electron micrograph of banana starch showed the shapes of banana starch appeared to be round and elongated forms, ranging in 10-50 μm at the harvest stage. As the banana closed to ripe status, some parallel striations were observed on the surface of banana starch granular which could be caused by enzyme reaction during ripening. These results inferred that the highest resistant starch was found in the green banana could be considered as a potential application of healthy foods. The changes of chemical composition and physicochemical properties of banana could be caused by the hydrolysis of enzymes during the ethylene-induced ripening treatment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=maturation%20of%20banana" title="maturation of banana">maturation of banana</a>, <a href="https://publications.waset.org/abstracts/search?q=appearance" title=" appearance"> appearance</a>, <a href="https://publications.waset.org/abstracts/search?q=texture" title=" texture"> texture</a>, <a href="https://publications.waset.org/abstracts/search?q=soluble%20sugars" title=" soluble sugars"> soluble sugars</a>, <a href="https://publications.waset.org/abstracts/search?q=resistant%20starch" title=" resistant starch"> resistant starch</a>, <a href="https://publications.waset.org/abstracts/search?q=enzyme%20activities" title=" enzyme activities"> enzyme activities</a>, <a href="https://publications.waset.org/abstracts/search?q=physicochemical%20properties%20of%20banana%20starch" title=" physicochemical properties of banana starch"> physicochemical properties of banana starch</a> </p> <a href="https://publications.waset.org/abstracts/32974/effect-of-maturation-on-the-characteristics-and-physicochemical-properties-of-banana-and-its-starch" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32974.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">316</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">6990</span> Temperature Profile Modelling in Flexible Pavement Design</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Csaba%20T%C3%B3th">Csaba Tóth</a>, <a href="https://publications.waset.org/abstracts/search?q=%C3%89va%20Lakatos"> Éva Lakatos</a>, <a href="https://publications.waset.org/abstracts/search?q=L%C3%A1szl%C3%B3%20Peth%C5%91"> László Pethő</a>, <a href="https://publications.waset.org/abstracts/search?q=Seoyoung%20Cho"> Seoyoung Cho </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The temperature effect on asphalt pavement structure is a crucial factor at the design stage. In this paper, by applying the German guidelines for temperature along the asphalt depth is estimated. The aim is to consider temperature profiles in different seasons in numerical modelling. The model is built with an elastic and isotropic solid element with 19 subdivisions of asphalt layers to reflect the temperature variation. Comparison with the simple three-layer pavement system (asphalt layers, base, and subgrade layers) will be followed to see the difference in result without temperature variation along with the depth. Finally, the fatigue life calculation was checked to prove the validity of the methodology of considering the temperature in the numerical modelling. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=temperature%20profile" title="temperature profile">temperature profile</a>, <a href="https://publications.waset.org/abstracts/search?q=flexible%20pavement%20modeling" title=" flexible pavement modeling"> flexible pavement modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20method" title=" finite element method"> finite element method</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature%20modeling" title=" temperature modeling"> temperature modeling</a> </p> <a href="https://publications.waset.org/abstracts/123609/temperature-profile-modelling-in-flexible-pavement-design" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/123609.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">267</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">6989</span> An Investigation on Hot-Spot Temperature Calculation Methods of Power Transformers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmet%20Y.%20Arabul">Ahmet Y. Arabul</a>, <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20Senol"> Ibrahim Senol</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatma%20Keskin%20Arabul"> Fatma Keskin Arabul</a>, <a href="https://publications.waset.org/abstracts/search?q=Mustafa%20G.%20Aydeniz"> Mustafa G. Aydeniz</a>, <a href="https://publications.waset.org/abstracts/search?q=Yasemin%20Oner"> Yasemin Oner</a>, <a href="https://publications.waset.org/abstracts/search?q=Gokhan%20Kalkan"> Gokhan Kalkan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the standards of IEC 60076-2 and IEC 60076-7, three different hot-spot temperature estimation methods are suggested. In this study, the algorithms which used in hot-spot temperature calculations are analyzed by comparing the algorithms with the results of an experimental set-up made by a Transformer Monitoring System (TMS) in use. In tested system, TMS uses only top oil temperature and load ratio for hot-spot temperature calculation. And also, it uses some constants from standards which are on agreed statements tables. During the tests, it came out that hot-spot temperature calculation method is just making a simple calculation and not uses significant all other variables that could affect the hot-spot temperature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hot-spot%20temperature" title="Hot-spot temperature">Hot-spot temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=monitoring%20system" title=" monitoring system"> monitoring system</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20transformer" title=" power transformer"> power transformer</a>, <a href="https://publications.waset.org/abstracts/search?q=smart%20grid" title=" smart grid"> smart grid</a> </p> <a href="https://publications.waset.org/abstracts/33034/an-investigation-on-hot-spot-temperature-calculation-methods-of-power-transformers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33034.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">572</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">6988</span> Temperature Distribution Control for Baby Incubator System Using Arduino AT Mega 2560</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=W.%20Widhiada">W. Widhiada</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20N.%20K.%20P.%20Negara"> D. N. K. P. Negara</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20A.%20Suryawan"> P. A. Suryawan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The technological advances in the field of health to be very important, especially on the safety of the baby. In this case a lot of premature infants death caused by poorly managed health facilities. Mostly the death of premature baby caused by bacteria since the temperature around the baby is not normal. Related to this, the incubator equipment needs to be important, especially in how to control the temperature in incubator. On/Off controls is used to regulate the temperature distribution in the incubator so that the desired temperature is 36 °C to stay awake and stable. The authors have been observed and analyzed the data to determine the temperature distribution in the incubator using program of MATLAB/Simulink. The output temperature distribution is obtained at 36 °C in 400 seconds using an Arduino AT 2560. This incubator is able to maintain an ambient temperature and maintain the baby's body temperature within normal limits and keep the moisture in the air in accordance with the limit values required in infant incubator. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=on%2Foff%20control" title="on/off control">on/off control</a>, <a href="https://publications.waset.org/abstracts/search?q=distribution%20temperature" title=" distribution temperature"> distribution temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=Arduino%20AT%202560" title=" Arduino AT 2560"> Arduino AT 2560</a>, <a href="https://publications.waset.org/abstracts/search?q=baby%20incubator" title=" baby incubator"> baby incubator</a> </p> <a href="https://publications.waset.org/abstracts/63688/temperature-distribution-control-for-baby-incubator-system-using-arduino-at-mega-2560" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63688.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">499</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">6987</span> Childhood Respiratory Diseases Related to Indoor and Outdoor Air Temperature in Shanghai, China</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chanjuan%20Sun">Chanjuan Sun</a>, <a href="https://publications.waset.org/abstracts/search?q=Shijie%20Hong"> Shijie Hong</a>, <a href="https://publications.waset.org/abstracts/search?q=Jialing%20Zhang"> Jialing Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Yuchao%20Guo"> Yuchao Guo</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhijun%20Zou"> Zhijun Zou</a>, <a href="https://publications.waset.org/abstracts/search?q=Chen%20Huang"> Chen Huang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Studies on associations between air temperature and childhood respiratory diseases are lack in China. Objectives: We aim to analyze the relationship between air temperature and childhood respiratory diseases. Methods: We conducted the on-site inspection into 454 residences and questionnaires survey. Indoor air temperature were from field inspection and outdoor air temperature were from website. Multiple logistic regression analyses were used to investigate the associations. Results: Indoor extreme hot air temperature was positively correlated with duration of a common cold (>=2 weeks), and outdoor extreme hot air temperature was also positively related with pneumonia among children. Indoor and outdoor extreme cold air temperature was a risk factor for rhinitis among children. The biggest indoor air temperature difference (indoor maximum air temperature minus indoor minimum air temperature) (Imax minus Imin) (the 4th quartile, >4 oC) and outdoor air temperature difference (outdoor maximum air temperature minus outdoor minimum air temperature) (Omax minus Omin) (the 4th quartile, >8oC) were positively related to pneumonia among children. Meanwhile, indoor air temperature difference (Imax minus Imin) (the 4th quartile, >4 oC) was positively correlated with diagnosed asthma among children. Air temperature difference between indoor and outdoor was negatively related with the most childhood respiratory diseases. This may be partly related to the avoidance behavior. Conclusions: Improper air temperature may affect the respiratory diseases among children. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=air%20temperature" title="air temperature">air temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=extreme%20air%20temperature" title=" extreme air temperature"> extreme air temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=air%20temperature%20difference" title=" air temperature difference"> air temperature difference</a>, <a href="https://publications.waset.org/abstracts/search?q=respiratory%20diseases" title=" respiratory diseases"> respiratory diseases</a>, <a href="https://publications.waset.org/abstracts/search?q=children" title=" children"> children</a> </p> <a href="https://publications.waset.org/abstracts/120913/childhood-respiratory-diseases-related-to-indoor-and-outdoor-air-temperature-in-shanghai-china" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/120913.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">173</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">6986</span> Comparison between FEM Simulation and Experiment of Temperature Rise in Power Transformer Inner Steel Plate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Byung%20hyun%20Bae">Byung hyun Bae</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In power transformer, leakage magnetic flux generate temperature rise of inner steel plate. Sometimes, this temperature rise can be serious problem. If temperature of steel plate is over critical point, harmful gas will be generated in the tank. And this gas can be a reason of fire, explosion and life decrease. So, temperature rise forecasting of steel plate is very important at the design stage of power transformer. To improve accuracy of forecasting of temperature rise, comparison between simulation and experiment achieved in this paper. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=power%20transformer" title="power transformer">power transformer</a>, <a href="https://publications.waset.org/abstracts/search?q=steel%20plate" title=" steel plate"> steel plate</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature%20rise" title=" temperature rise"> temperature rise</a>, <a href="https://publications.waset.org/abstracts/search?q=experiment" title=" experiment"> experiment</a>, <a href="https://publications.waset.org/abstracts/search?q=simulation" title=" simulation"> simulation</a> </p> <a href="https://publications.waset.org/abstracts/12749/comparison-between-fem-simulation-and-experiment-of-temperature-rise-in-power-transformer-inner-steel-plate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12749.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">495</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">6985</span> A Statistical Analysis on Relationship between Temperature Variations with Latitude and Altitude regarding Total Amount of Atmospheric Carbon Dioxide in Iran</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Masoumeh%20Moghbel">Masoumeh Moghbel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nowadays, carbon dioxide which is produced by human activities is considered as the main effective factor in the global warming occurrence. Regarding to the role of CO2 and its ability in trapping the heat, the main objective of this research is study the effect of atmospheric CO2 (which is recorded in Manaloa) on variations of temperature parameters (daily mean temperature, minimum temperature and maximum temperature) in 5 meteorological stations in Iran which were selected according to the latitude and altitude in 40 years statistical period. Firstly, the trend of temperature parameters was studied by Regression and none-graphical Man-Kendal methods. Then, relation between temperature variations and CO2 were studied by Correlation technique. Also, the impact of CO2 amount on temperature in different atmospheric levels (850 and 500 hpa) was analyzed. The results illustrated that correlation coefficient between temperature variations and CO2 in low latitudes and high altitudes is more significant rather than other regions. it is important to note that altitude as the one of the main geographic factor has limitation in affecting the temperature variations, so that correlation coefficient between these two parameters in 850 hpa (r=0.86) is more significant than 500 hpa (r = 0.62). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=altitude" title="altitude">altitude</a>, <a href="https://publications.waset.org/abstracts/search?q=atmospheric%20carbon%20dioxide" title=" atmospheric carbon dioxide"> atmospheric carbon dioxide</a>, <a href="https://publications.waset.org/abstracts/search?q=latitude" title=" latitude"> latitude</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature%20variations" title=" temperature variations"> temperature variations</a> </p> <a href="https://publications.waset.org/abstracts/34560/a-statistical-analysis-on-relationship-between-temperature-variations-with-latitude-and-altitude-regarding-total-amount-of-atmospheric-carbon-dioxide-in-iran" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34560.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">408</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">6984</span> Influence of Temperature on Properties of MOSFETs</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Azizi%20Cherifa">Azizi Cherifa</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20Benzaoui"> O. Benzaoui </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The thermal aspects in the design of power circuits often deserve as much attention as pure electric components aspects as the operating temperature has a direct influence on their static and dynamic characteristics. MOSFET is fundamental in the circuits, it is the most widely used device in the current production of semiconductor components using their honorable performance. The aim of this contribution is devoted to the effect of the temperature on the properties of MOSFETs. The study enables us to calculate the drain current as function of bias in both linear and saturated modes. The effect of temperature is evaluated using a numerical simulation, using the laws of mobility and saturation velocity of carriers as a function of temperature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=temperature" title="temperature">temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=MOSFET" title=" MOSFET"> MOSFET</a>, <a href="https://publications.waset.org/abstracts/search?q=mobility" title=" mobility"> mobility</a>, <a href="https://publications.waset.org/abstracts/search?q=transistor" title=" transistor"> transistor</a> </p> <a href="https://publications.waset.org/abstracts/42385/influence-of-temperature-on-properties-of-mosfets" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/42385.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">346</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6983</span> Discussion on Microstructural Changes Caused by Deposition Temperature of LZO Doped Mg Piezoelectric Films</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cheng-Ying%20Li">Cheng-Ying Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Sheng-Yuan%20Chu"> Sheng-Yuan Chu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article deposited LZO-doped Mg piezoelectric thin films via RF sputtering and observed microstructure and electrical characteristics by varying the deposition temperature. The XRD analysis results indicate that LZO-doped Mg exhibits excellent (002) orientation, and there is no presence of ZnO(100), Influenced by the temperature's effect on the lattice constant, the (002) peak intensity increases with rising temperature. Finally, we conducted deformation intensity analysis on the films, revealing an over fourfold increase in deformation at a processing temperature of 500°C. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=RF%20sputtering" title="RF sputtering">RF sputtering</a>, <a href="https://publications.waset.org/abstracts/search?q=piezoelectricity" title=" piezoelectricity"> piezoelectricity</a>, <a href="https://publications.waset.org/abstracts/search?q=ZnO" title=" ZnO"> ZnO</a>, <a href="https://publications.waset.org/abstracts/search?q=Mg" title=" Mg"> Mg</a> </p> <a href="https://publications.waset.org/abstracts/186346/discussion-on-microstructural-changes-caused-by-deposition-temperature-of-lzo-doped-mg-piezoelectric-films" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186346.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">41</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">6982</span> Evaluation of Mechanical Behavior of Gas Turbine Blade at High Temperature</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sung-Uk%20Wee">Sung-Uk Wee</a>, <a href="https://publications.waset.org/abstracts/search?q=Chang-Sung%20Seok"> Chang-Sung Seok</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=Jeong-Min%20Lee"> Jeong-Min Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Gas turbine blade is important part of power plant, so it is necessary to evaluate gas turbine reliability. For better heat efficiency, inlet temperature of gas turbine has been elevated more and more so gas turbine blade is exposed to high-temperature environment. Then, higher inlet temperature affects mechanical behavior of the gas turbine blade, so it is necessary that evaluation of mechanical property of gas turbine blade at high-temperature environment. In this study, tensile test and fatigue test were performed at various high temperature, and fatigue life was predicted by Coffin-Manson equation at each temperature. The experimental results showed that gas turbine blade has a lower elastic modulus and shorter fatigue life at higher temperature. <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=tensile%20test" title=" tensile test"> tensile test</a>, <a href="https://publications.waset.org/abstracts/search?q=fatigue%20life" title=" fatigue life"> fatigue life</a>, <a href="https://publications.waset.org/abstracts/search?q=stress-strain" title=" stress-strain"> stress-strain</a> </p> <a href="https://publications.waset.org/abstracts/52129/evaluation-of-mechanical-behavior-of-gas-turbine-blade-at-high-temperature" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52129.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">477</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">6981</span> Centrifuge Testing to Determine the Effect of Temperature on the Adhesion Strength of Ice</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zaid%20A.%20Janjua">Zaid A. Janjua</a>, <a href="https://publications.waset.org/abstracts/search?q=Barbara%20Turnbull"> Barbara Turnbull</a>, <a href="https://publications.waset.org/abstracts/search?q=Kwing-So%20Choi"> Kwing-So Choi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The adhesion of glaze ice on power infrastructure, ships and aerofoils cause monetary and structural damage. Here we investigate the influence of temperature as an important parameter affecting adhesion strength of ice. Two terms are defined to investigate this: 'freezing temperature', the temperature at which glaze ice forms; and 'ambient temperature', the temperature of the surrounding during the test. Using three metal surfaces, the adhesion strength of ice has been calculated as a value of shear stress at the point of detachment on a spinning centrifuge. Findings show that the ambient temperature has a greater influence than the freezing temperature on the adhesion strength of ice. This is because there exists an amorphous liquid-like layer at the ice-surface interface, whose bond with the surface increases in strength at lower ambient temperatures when the substrate conducts heat much faster than the ice and acts as a heat sink. The results will help us to measure the actual adhesion strength of ice to metal surfaces based on data from weather monitoring devices. Future tests envisaged focus on thermally non-conducting substrates and their influence on adhesion strength. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ice%20adhesion" title="ice adhesion">ice adhesion</a>, <a href="https://publications.waset.org/abstracts/search?q=centrifuge" title=" centrifuge"> centrifuge</a>, <a href="https://publications.waset.org/abstracts/search?q=glaze%20ice" title=" glaze ice"> glaze ice</a>, <a href="https://publications.waset.org/abstracts/search?q=freezing%20temperature" title=" freezing temperature"> freezing temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=ambient%20temperature" title=" ambient temperature"> ambient temperature</a> </p> <a href="https://publications.waset.org/abstracts/60459/centrifuge-testing-to-determine-the-effect-of-temperature-on-the-adhesion-strength-of-ice" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60459.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">343</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6980</span> A Method for Calculating Dew Point Temperature in the Humidity Test</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wu%20Sa">Wu Sa</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhang%20Qian"> Zhang Qian</a>, <a href="https://publications.waset.org/abstracts/search?q=Li%20Qi"> Li Qi</a>, <a href="https://publications.waset.org/abstracts/search?q=Wang%20Ye"> Wang Ye</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Currently in humidity tests having not put the Dew point temperature as a control parameter, this paper selects wet and dry bulb thermometer to measure the vapor pressure, and introduces several the saturation vapor pressure formulas easily calculated on the controller. Then establish the Dew point temperature calculation model to obtain the relationship between the Dew point temperature and vapor pressure. Finally check through the 100 groups of sample in the range of 0-100 ℃ from "Psychrometric handbook", find that the average error is small. This formula can be applied to calculate the Dew point temperature in the humidity test. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dew%20point%20temperature" title="dew point temperature">dew point temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=psychrometric%20handbook" title=" psychrometric handbook"> psychrometric handbook</a>, <a href="https://publications.waset.org/abstracts/search?q=saturation%20vapor%20pressure" title=" saturation vapor pressure"> saturation vapor pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=wet%20and%20dry%20bulb%20thermometer" title=" wet and dry bulb thermometer"> wet and dry bulb thermometer</a> </p> <a href="https://publications.waset.org/abstracts/30022/a-method-for-calculating-dew-point-temperature-in-the-humidity-test" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30022.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">489</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">6979</span> Vortex Separator for More Accurate Air Dry-Bulb Temperature Measurement</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20N.%20Shmroukh">Ahmed N. Shmroukh</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20M.%20S.%20Taha"> I. M. S. Taha</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20Abdel-Ghany"> A. M. Abdel-Ghany</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Attalla"> M. Attalla</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fog systems application for cooling and humidification is still limited, although these systems require less initial cost compared with that of other cooling systems such as pad-and-fan systems. The undesirable relative humidity and air temperature inside the space which have been cooled or humidified are the main reasons for its limited use, which results from the poor control of fog systems. Any accurate control system essentially needs air dry bulb temperature as an input parameter. Therefore, the air dry-bulb temperature in the space needs to be measured accurately. The Scope of the present work is the separation of the fog droplets from the air in a fogged space to measure the air dry bulb temperature accurately. The separation is to be done in a small device inside which the sensor of the temperature measuring instrument is positioned. Vortex separator will be designed and used. Another reference device will be used for measuring the air temperature without separation. A comparative study will be performed to reach at the best device which leads to the most accurate measurement of air dry bulb temperature. The results showed that the proposed devices improved the measured air dry bulb temperature toward the correct direction over that of the free junction. Vortex device was the best. It respectively increased the temperature measured by the free junction in the range from around 2 to around 6°C for different fog on-off duration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fog%20systems" title="fog systems">fog systems</a>, <a href="https://publications.waset.org/abstracts/search?q=measuring%20air%20dry%20bulb%20temperature" title=" measuring air dry bulb temperature"> measuring air dry bulb temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature%20measurement" title=" temperature measurement"> temperature measurement</a>, <a href="https://publications.waset.org/abstracts/search?q=vortex%20separator" title=" vortex separator"> vortex separator</a> </p> <a href="https://publications.waset.org/abstracts/58889/vortex-separator-for-more-accurate-air-dry-bulb-temperature-measurement" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58889.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">296</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6978</span> Comparison of Mean Monthly Soil Temperature at (5 and 30 cm) Depths at Compton Experimental Site, West Midlands (UK), between 1976-2008</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aminu%20Mansur">Aminu Mansur</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A comparison of soil temperature at (5 and 30 cm) depths at a research site over the period (1976-2008) was analyzed. Based on the statistical analysis of the database of (12,045) days of individual soil temperature measurements in sandy-loam of the (salwick series) soils, the mean soil temperature revealed a statistically significant increase of about -1.1 to 10.9°C at 5 cm depth in 1976 compared to 2008. Similarly, soil temperature at 30 cm depth increased by -0.1 to 2.1°C in 2008 compared to 1976. Although, rapid increase in soil temperature at all depths was observed during that period, but a thorough assessment of these conditions suggested that the soil temperature at 5 cm depth are progressively increasing over time. A typical example of those increases in soil temperature was provided for agriculture where Miscanthus (elephant) plant that grows within the study area is adversely affected by the mean soil temperature increase. The study concluded that these observations contribute to the growing mass of evidence of global warming and knowledge on secular trends. Therefore, there was statistically significant increase in soil temperature at Compton Experimental Site between 1976-2008. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=soil%20temperature" title="soil temperature">soil temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=warming%20trend" title=" warming trend"> warming trend</a>, <a href="https://publications.waset.org/abstracts/search?q=environment%20science" title=" environment science"> environment science</a>, <a href="https://publications.waset.org/abstracts/search?q=climate%20and%20atmospheric%20sciences" title=" climate and atmospheric sciences"> climate and atmospheric sciences</a> </p> <a href="https://publications.waset.org/abstracts/26304/comparison-of-mean-monthly-soil-temperature-at-5-and-30-cm-depths-at-compton-experimental-site-west-midlands-uk-between-1976-2008" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26304.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">298</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6977</span> Oil Recovery Study by Low Temperature Carbon Dioxide Injection in High-Pressure High-Temperature Micromodels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zakaria%20Hamdi">Zakaria Hamdi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mariyamni%20Awang"> Mariyamni Awang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> For the past decades, CO<sub>2</sub> flooding has been used as a successful method for enhanced oil recovery (EOR). However, high mobility ratio and fingering effect are considered as important drawbacka of this process. Low temperature injection of CO<sub>2</sub> into high temperature reservoirs may improve the oil recovery, but simulating multiphase flow in the non-isothermal medium is difficult, and commercial simulators are very unstable in these conditions. Furthermore, to best of authors’ knowledge, no experimental work was done to verify the results of the simulations and to understand the pore-scale process. In this paper, we present results of investigations on injection of low temperature CO<sub>2</sub> into a high-pressure high-temperature micromodel with injection temperature range from 34 to 75 °F. Effect of temperature and saturation changes of different fluids are measured in each case. The results prove the proposed method. The injection of CO<sub>2</sub> at low temperatures increased the oil recovery in high temperature reservoirs significantly. Also, CO<sub>2</sub> rich phases available in the high temperature system can affect the oil recovery through the better sweep of the oil which is initially caused by penetration of LCO<sub>2</sub> inside the system. Furthermore, no unfavorable effect was detected using this method. Low temperature CO<sub>2</sub> is proposed to be used as early as secondary recovery. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=enhanced%20oil%20recovery" title="enhanced oil recovery">enhanced oil recovery</a>, <a href="https://publications.waset.org/abstracts/search?q=CO%E2%82%82%20flooding" title=" CO₂ flooding"> CO₂ flooding</a>, <a href="https://publications.waset.org/abstracts/search?q=micromodel%20studies" title=" micromodel studies"> micromodel studies</a>, <a href="https://publications.waset.org/abstracts/search?q=miscible%20flooding" title=" miscible flooding"> miscible flooding</a> </p> <a href="https://publications.waset.org/abstracts/71727/oil-recovery-study-by-low-temperature-carbon-dioxide-injection-in-high-pressure-high-temperature-micromodels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71727.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">352</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6976</span> Study on the Heat Transfer Performance of the Annular Fin under Condensing Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdenour%20Bourabaa">Abdenour Bourabaa</a>, <a href="https://publications.waset.org/abstracts/search?q=Malika%20Fekih"> Malika Fekih</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Saighi"> Mohamed Saighi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A numerical investigation of the fin efficiency and temperature distribution of an annular fin under dehumidification has been presented in this paper. The non-homogeneous second order differential equation that describes the temperature distribution from the fin base to the fin tip has been solved using the central finite difference method. The effects of variations in parameters including relative humidity, air temperature, air face velocity on temperature distribution and fin efficiency are investigated and compared with those under fully dry fin conditions. Also, the effect of fin pitch on the dimensionless temperature has been studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=annular%20fin" title="annular fin">annular fin</a>, <a href="https://publications.waset.org/abstracts/search?q=dehumidification" title=" dehumidification"> dehumidification</a>, <a href="https://publications.waset.org/abstracts/search?q=fin%20efficiency" title=" fin efficiency"> fin efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20and%20mass%20transfer" title=" heat and mass transfer"> heat and mass transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=wet%20fin" title=" wet fin"> wet fin</a> </p> <a href="https://publications.waset.org/abstracts/1939/study-on-the-heat-transfer-performance-of-the-annular-fin-under-condensing-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1939.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">480</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">6975</span> Simulation of Uniaxial Ratcheting Behaviors of SA508-3 Steel at Elevated Temperature</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jun%20Tian">Jun Tian</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu%20Yang"> Yu Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Liping%20Zhang"> Liping Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Qianhua%20Kan"> Qianhua Kan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Experimental results show that SA 508-3 steel exhibits temperature dependent cyclic softening characteristic and obvious ratcheting behaviors, and dynamic strain age was observed at temperature range of 200 ºC to 350 ºC. Based on these observations, a temperature dependent cyclic plastic constitutive model was proposed by introducing the nonlinear cyclic softening and kinematic hardening rules, and the dynamic strain age was also considered into the constitutive model. Comparisons between experiments and simulations were carried out to validate the proposed model at elevated temperature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=constitutive%20model" title="constitutive model">constitutive model</a>, <a href="https://publications.waset.org/abstracts/search?q=elevated%20temperature" title=" elevated temperature"> elevated temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=ratcheting" title=" ratcheting"> ratcheting</a>, <a href="https://publications.waset.org/abstracts/search?q=SA%20508-3" title=" SA 508-3"> SA 508-3</a> </p> <a href="https://publications.waset.org/abstracts/53469/simulation-of-uniaxial-ratcheting-behaviors-of-sa508-3-steel-at-elevated-temperature" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53469.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">302</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">6974</span> Influence and Interaction of Temperature, H2S and pH on Concrete Sewer Pipe Corrosion</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anna%20Romanova">Anna Romanova</a>, <a href="https://publications.waset.org/abstracts/search?q=Mojtaba%20Mahmoodian"> Mojtaba Mahmoodian</a>, <a href="https://publications.waset.org/abstracts/search?q=Morteza%20A.%20Alani"> Morteza A. Alani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Concrete sewer pipes are known to suffer from a process of hydrogen sulfide gas induced sulfuric acid corrosion. This leads to premature pipe degradation, performance failure and collapses which in turn may lead to property and health damage. The above work reports on a field study undertaken in working sewer manholes where the parameters of effluent temperature and pH as well as ambient temperature and concentration of hydrogen sulfide were continuously measured over a period of two months. Early results suggest that effluent pH has no direct effect on hydrogen sulfide build up; on average the effluent temperature is 3.5°C greater than the ambient temperature inside the manhole and also it was observed that hydrogen sulfate concentration increases with increasing temperature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=concrete%20corrosion" title="concrete corrosion">concrete corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrogen%20sulfide%20gas" title=" hydrogen sulfide gas"> hydrogen sulfide gas</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature" title=" temperature"> temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=sewer%20pipe" title=" sewer pipe"> sewer pipe</a> </p> <a href="https://publications.waset.org/abstracts/10077/influence-and-interaction-of-temperature-h2s-and-ph-on-concrete-sewer-pipe-corrosion" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10077.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">572</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=gelatinization%20temperature&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=gelatinization%20temperature&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=gelatinization%20temperature&page=4">4</a></li> <li class="page-item"><a class="page-link" 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