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pressure processing</title> <meta name="description" content="Search results for: high pressure processing"> <meta name="keywords" content="high pressure processing"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="high pressure processing"> <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> 24971</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: high pressure processing</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24971</span> Giant Achievements in Food Processing </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farnaz%20Amidi%20Fazli">Farnaz Amidi Fazli</a> </p> <p class="card-text"><strong>Abstract:</strong></p> After long period of human experience about food processing from raw eating to canning of food in the last century now it is time to use novel technologies which are sometimes completely different from common technologies. It is possible to decontaminate food without using heat or the foods are stored without using cold chain. Pulsed electric ﬁeld (PEF) processing is a non-thermal method of food preservation that uses short bursts of electricity, PEF can be used for processing liquid and semi-liquid food products. PEF processing offers high quality fresh-like liquid foods with excellent ﬂavor, nutritional value, and shelf-life. High pressure processing (HPP) technology has the potential to fulfill both consumer and scientific requirements. The use of HPP for over 50 years has found applications in non-food industries. For food applications, ‘high pressure’ can be generally considered to be up to 600 MPa for most food products. After years, freezing has its high potential to food preservation due to new and quick freezing methods. Foods which are prepared by this technology have more acceptability and high quality comparing with old fashion slow freezing. Thus, quick freezing has further been adopted as a widespread commercial method for long-term preservation of perishable foods which improved both the health and convenience of everyone in the industrialised countries. Above parameters are achieved by Fluidised-bed freezing systems, freezing by immersion and Hydrofluidisation on the other hand new thawing methods like high-pressure, microwave, ohmic, and acoustic thawing have a key role in quality and adaptability of final product. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=quick%20freezing" title="quick freezing">quick freezing</a>, <a href="https://publications.waset.org/abstracts/search?q=thawing" title=" thawing"> thawing</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20pressure" title=" high pressure"> high pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=pulse%20electric" title=" pulse electric"> pulse electric</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrofluidisation" title=" hydrofluidisation"> hydrofluidisation</a> </p> <a href="https://publications.waset.org/abstracts/2274/giant-achievements-in-food-processing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2274.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">321</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">24970</span> Physicochemical Stability of Pulse Spreads during Storage after Sous Vide Treatment and High Pressure Processing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Asnate%20Kirse">Asnate Kirse</a>, <a href="https://publications.waset.org/abstracts/search?q=Daina%20Karklina"> Daina Karklina</a>, <a href="https://publications.waset.org/abstracts/search?q=Sandra%20Muizniece-Brasava"> Sandra Muizniece-Brasava</a>, <a href="https://publications.waset.org/abstracts/search?q=Ruta%20Galoburda"> Ruta Galoburda</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Pulses are high in plant protein and dietary fiber, and contain slowly digestible starches. Innovative products from pulses could increase their consumption and benefit consumer health. This study was conducted to evaluate physicochemical stability of processed cowpea (<em>Vigna unguiculata</em> (L.) Walp. cv. Fradel) and maple pea (<em>Pisum sativum</em> var. <em>arvense</em> L. cv. Bruno) spreads at 5 °C temperature during 62-day storage. Physicochemical stability of pulse spreads was compared after <em>sous vide</em> treatment (80 °C/15 min) and high pressure processing (700 MPa/10 min/20 °C). Pulse spreads were made by homogenizing cooked pulses in a food processor together with salt, citric acid, oil, and bruschetta seasoning. A total of four different pulse spreads were studied: Cowpea spread without and with seasoning, maple pea spread without and with seasoning. Transparent PA/PE and light proof PET/ALU/PA/PP film pouches were used for packaging of pulse spreads under vacuum. The parameters investigated were pH, water activity and mass losses. Pulse spreads were tested on days 0, 15, 29, 42, 50, 57 and 62. The results showed that sous-vide treatment and high pressure processing had an insignificant influence on pH, water activity and mass losses after processing, irrespective of packaging material did not change (p>0.1). pH and water activity of sous-vide treated and high pressure processed pulse spreads in different packaging materials proved to be stable throughout the storage. Mass losses during storage accounted to 0.1% losses. Chosen sous-vide treatment and high pressure processing regimes and packaging materials are suitable to maintain consistent physicochemical quality of the new products during 62-day storage. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cowpea" title="cowpea">cowpea</a>, <a href="https://publications.waset.org/abstracts/search?q=flexible%20packaging" title=" flexible packaging"> flexible packaging</a>, <a href="https://publications.waset.org/abstracts/search?q=maple%20pea" title=" maple pea"> maple pea</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20activity" title=" water activity"> water activity</a> </p> <a href="https://publications.waset.org/abstracts/58664/physicochemical-stability-of-pulse-spreads-during-storage-after-sous-vide-treatment-and-high-pressure-processing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58664.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">279</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">24969</span> High Pressure Processing of Jackfruit Bulbs: Effect on Color, Nutrient Profile and Enzyme Inactivation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jyoti%20Kumari">Jyoti Kumari</a>, <a href="https://publications.waset.org/abstracts/search?q=Pavuluri%20Srinivasa%20Rao"> Pavuluri Srinivasa Rao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Jackfruit (ArtocarpusheterophyllusL.) is an underutilized yet highly nutritious fruit with unique flavour, known for its therapeutic and culinary properties. Fresh jackfruit bulb has a very short shelf life due to high moisture and sugar content leading to microbial and enzymatic browning, hindering its consumer acceptability and marketability. An attempt has been made for the preservation of the ripe jackfruit bulbs, by the application of high pressure (HP) over a range of 200-500 MPa at ambient temperature for dwell times ranging from 5 to 20 min. The physicochemical properties of jackfruit bulbs such as the pH, TSS, and titrable acidity were not affected by the pressurization process. The ripening index of the fruit bulb also decreased following HP treatment. While the ascorbic acid and antioxidant activity of jackfruit bulb were well retained by high pressure processing (HPP), the total phenols and carotenoids showed a slight increase. The HPP significantly affected the colour and textural properties of jackfruit bulb. High pressure processing was highly effective in reducing the browning index of jackfruit bulbs in comparison to untreated bulbs. The firmness of the bulbs improved upon the pressure treatment with longer dwelling time. The polyphenol oxidase has been identified as the most prominent oxidative enzyme in the jackfruit bulb. The enzymatic activity of polyphenol oxidase and peroxidase were significantly reduced by up to 40% following treatment at 400 MPa/15 min. HPP of jackfruit bulbs at ambient temperatures is shown to be highly beneficial in improving the shelf stability, retaining its nutrient profile, color, and appearance while ensuring the maximum inactivation of the spoilage enzymes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antioxidant%20capacity" title="antioxidant capacity">antioxidant capacity</a>, <a href="https://publications.waset.org/abstracts/search?q=ascorbic%20acid" title=" ascorbic acid"> ascorbic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=carotenoids" title=" carotenoids"> carotenoids</a>, <a href="https://publications.waset.org/abstracts/search?q=color" title=" color"> color</a>, <a href="https://publications.waset.org/abstracts/search?q=HPP-high%20pressure%20processing" title=" HPP-high pressure processing"> HPP-high pressure processing</a>, <a href="https://publications.waset.org/abstracts/search?q=jackfruit%20bulbs" title=" jackfruit bulbs"> jackfruit bulbs</a>, <a href="https://publications.waset.org/abstracts/search?q=polyphenol%20oxidase" title=" polyphenol oxidase"> polyphenol oxidase</a>, <a href="https://publications.waset.org/abstracts/search?q=peroxidase" title=" peroxidase"> peroxidase</a>, <a href="https://publications.waset.org/abstracts/search?q=total%20phenolic%20content" title=" total phenolic content"> total phenolic content</a> </p> <a href="https://publications.waset.org/abstracts/80545/high-pressure-processing-of-jackfruit-bulbs-effect-on-color-nutrient-profile-and-enzyme-inactivation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80545.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">174</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">24968</span> Application of Medium High Hydrostatic Pressure in Preserving Textural Quality and Safety of Pineapple Compote</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nazim%20Uddin">Nazim Uddin</a>, <a href="https://publications.waset.org/abstracts/search?q=Yohiko%20Nakaura"> Yohiko Nakaura</a>, <a href="https://publications.waset.org/abstracts/search?q=Kazutaka%20Yamamoto"> Kazutaka Yamamoto</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Compote (fruit in syrup) of pineapple (<em>Ananas</em> <em>comosus</em> L. Merrill) is expected to have a high market potential as one of convenient ready-to-eat (RTE) foods worldwide. High hydrostatic pressure (HHP) in combination with low temperature (LT) was applied to the processing of pineapple compote as well as medium HHP (MHHP) in combination with medium-high temperature (MHT) since both processes can enhance liquid impregnation and inactivate microbes. MHHP+MHT (55 or 65 °C) process, as well as the HHP+LT process, has successfully inactivated the microbes in the compote to a non-detectable level. Although the compotes processed by MHHP+MHT or HHP+LT have lost the fresh texture as in a similar manner as those processed solely by heat, it was indicated that the texture degradations by heat were suppressed under MHHP. Degassing process reduced the hardness, while calcium (Ca) contributed to be retained hardness in MHT and MHHP+MHT processes. Electrical impedance measurement supported the damage due to degassing and heat. The color, Brix, and appearance were not affected by the processing methods significantly. MHHP+MHT and HHP+LT processes may be applicable to produce high-quality, safe RTE pineapple compotes. Further studies on the optimization of packaging and storage condition will be indispensable for commercialization. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=compote%20of%20pineapple" title="compote of pineapple">compote of pineapple</a>, <a href="https://publications.waset.org/abstracts/search?q=RTE" title=" RTE"> RTE</a>, <a href="https://publications.waset.org/abstracts/search?q=medium%20high%20hydrostatic%20pressure" title=" medium high hydrostatic pressure"> medium high hydrostatic pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=postharvest%20loss" title=" postharvest loss"> postharvest loss</a>, <a href="https://publications.waset.org/abstracts/search?q=texture" title=" texture"> texture</a> </p> <a href="https://publications.waset.org/abstracts/110564/application-of-medium-high-hydrostatic-pressure-in-preserving-textural-quality-and-safety-of-pineapple-compote" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/110564.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">137</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">24967</span> A CFD Analysis of Flow through a High-Pressure Natural Gas Pipeline with an Undeformed and Deformed Orifice Plate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20Ki%C5%A1">R. Kiš</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Malcho"> M. Malcho</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Janovcov%C3%A1"> M. Janovcová</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This work aims to present a numerical analysis of the natural gas which flows through a high-pressure pipeline and an orifice plate, through the use of CFD methods. The paper contains CFD calculations for the flow of natural gas in a pipe with different geometry used for the orifice plates. One of them has a standard geometry and a shape without any deformation and the other is deformed by the action of the pressure differential. It shows the behaviour of natural gas in a pipeline using the velocity profiles and pressure fields of the gas in both models with their differences. The entire research is based on the elimination of any inaccuracy which should appear in the flow of the natural gas measured in the high-pressure pipelines of the gas industry and which is currently not given in the relevant standard. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=orifice%20plate" title="orifice plate">orifice plate</a>, <a href="https://publications.waset.org/abstracts/search?q=high-pressure%20pipeline" title=" high-pressure pipeline"> high-pressure pipeline</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20gas" title=" natural gas"> natural gas</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD%20analysis" title=" CFD analysis"> CFD analysis</a> </p> <a href="https://publications.waset.org/abstracts/6081/a-cfd-analysis-of-flow-through-a-high-pressure-natural-gas-pipeline-with-an-undeformed-and-deformed-orifice-plate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6081.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">379</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">24966</span> Mindfulness, Reinvestment, and Rowing under Pressure: Evidence for Moderated Moderation of the Anxiety-Performance Relationship</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Katherine%20Sparks">Katherine Sparks</a>, <a href="https://publications.waset.org/abstracts/search?q=Christopher%20Ring"> Christopher Ring</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aimed to investigate whether dispositional sport-specific mindfulness moderated the moderation effect of conscious processing on the relationship between anxiety and rowing race performance. Using a sport-specific (Rowing-Specific) Reinvestment Scale (RSRS) to measure state conscious processing, we examined the effects of trait sport-related mindfulness on the conscious processes of rowers under competitive racing pressure at a number of UK regattas. 276 rowers completed a survey post competitive race. The survey included the RSRS, mindfulness, a perceived performance rating scale, demographic and race information to identify and record the rower’s actual race performance. Results from the research demonstrated that high levels of dispositional mindfulness are associated with a superior performance under pressure. In relation to the moderating moderation effect, conscious processing amplifies the detrimental effects of anxiety on performance. However, mindfulness, mindful awareness, and mindful non-judgement all proved to attenuate this amplification effect by moderating the conscious processing moderation on the anxiety-performance relationship. Therefore, this study provides initial support for the speculation that dispositional mindfulness can help prevent the deleterious effects of rowing-specific reinvestment under pressure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mindful" title="mindful">mindful</a>, <a href="https://publications.waset.org/abstracts/search?q=reinvestment" title=" reinvestment"> reinvestment</a>, <a href="https://publications.waset.org/abstracts/search?q=under%20pressure" title=" under pressure"> under pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=performance" title=" performance"> performance</a>, <a href="https://publications.waset.org/abstracts/search?q=rowing" title=" rowing"> rowing</a> </p> <a href="https://publications.waset.org/abstracts/127388/mindfulness-reinvestment-and-rowing-under-pressure-evidence-for-moderated-moderation-of-the-anxiety-performance-relationship" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/127388.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">156</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">24965</span> Signal Processing of the Blood Pressure and Characterization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hadj%20Abd%20El%20Kader%20Benghenia">Hadj Abd El Kader Benghenia</a>, <a href="https://publications.waset.org/abstracts/search?q=Fethi%20Bereksi%20Reguig"> Fethi Bereksi Reguig</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In clinical medicine, blood pressure, raised blood hemodynamic monitoring is rich pathophysiological information of cardiovascular system, of course described through factors such as: blood volume, arterial compliance and peripheral resistance. In this work, we are interested in analyzing these signals to propose a detection algorithm to delineate the different sequences and especially systolic blood pressure (SBP), diastolic blood pressure (DBP), and the wave and dicrotic to do their analysis in order to extract the cardiovascular parameters. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=blood%20pressure" title="blood pressure">blood pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=SBP" title=" SBP"> SBP</a>, <a href="https://publications.waset.org/abstracts/search?q=DBP" title=" DBP"> DBP</a>, <a href="https://publications.waset.org/abstracts/search?q=detection%20algorithm" title=" detection algorithm"> detection algorithm</a> </p> <a href="https://publications.waset.org/abstracts/9946/signal-processing-of-the-blood-pressure-and-characterization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9946.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">439</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24964</span> Processing Studies and Challenges Faced in Development of High-Pressure Titanium Alloy Cryogenic Gas Bottles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bhanu%20Pant">Bhanu Pant</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanjay%20H.%20Upadhyay"> Sanjay H. Upadhyay</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Frequently, the upper stage of high-performance launch vehicles utilizes cryogenic tank-submerged pressurization gas bottles with high volume-to-weight efficiency to achieve a direct gain in the satellite payload. Titanium alloys, owing to their high specific strength coupled with excellent compatibility with various fluids, are the materials of choice for these applications. Amongst the Titanium alloys, there are two alloys suitable for cryogenic applications, namely Ti6Al4V-ELI and Ti5Al2.5Sn-ELI. The two-phase alpha-beta alloy Ti6Al4V-ELI is usable up to LOX temperature of 90K, while the single-phase alpha alloy Ti5Al2.5Sn-ELI can be used down to LHe temperature of 4 K. The high-pressure gas bottles submerged in the LH2 (20K) can store more amount of gas in as compared to those submerged in LOX (90K) bottles the same volume. Thus, the use of these alpha alloy gas bottles stored at 20K gives a distinct advantage with respect to the need for a lesser number of gas bottles to store the same amount of high-pressure gas, which in turn leads to a one-to-one advantage in the payload in the satellite. The cost advantage to the tune of 15000$/ kg of weight is saved in the upper stages, and, thereby, the satellite payload gain is expected by this change. However, the processing of alpha Ti5Al2.5Sn-ELI alloy gas bottles poses challenges due to the lower forgeability of the alloy and mode of qualification for the critical severe application environment. The present paper describes the processing and challenges/ solutions during the development of these advanced gas bottles for LH2 (20K) applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=titanium%20alloys" title="titanium alloys">titanium alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=cryogenic%20gas%20bottles" title=" cryogenic gas bottles"> cryogenic gas bottles</a>, <a href="https://publications.waset.org/abstracts/search?q=alpha%20titanium%20alloy" title=" alpha titanium alloy"> alpha titanium alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=alpha-beta%20titanium%20alloy" title=" alpha-beta titanium alloy"> alpha-beta titanium alloy</a> </p> <a href="https://publications.waset.org/abstracts/185204/processing-studies-and-challenges-faced-in-development-of-high-pressure-titanium-alloy-cryogenic-gas-bottles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/185204.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">57</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">24963</span> Investigation and Analysis on Pore Pressure Variation by Sonic Impedance under Influence of Compressional, Shear, and Stonely Waves in High Pressure Zones</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nouri">Nouri</a>, <a href="https://publications.waset.org/abstracts/search?q=K."> K.</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghassem%20Alaskari"> Ghassem Alaskari</a>, <a href="https://publications.waset.org/abstracts/search?q=M."> M.</a>, <a href="https://publications.waset.org/abstracts/search?q=K."> K.</a>, <a href="https://publications.waset.org/abstracts/search?q=Amiri%20Hazaveh"> Amiri Hazaveh</a>, <a href="https://publications.waset.org/abstracts/search?q=A."> A.</a>, <a href="https://publications.waset.org/abstracts/search?q=Nabi%20Bidhendi"> Nabi Bidhendi</a>, <a href="https://publications.waset.org/abstracts/search?q=M."> M. </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Pore pressure is one on the key Petrophysical parameter in exploration discussion and survey on hydrocarbon reservoir. Determination of pore pressure in various levels of drilling and integrity of drilling mud and high pressure zones in order to restrict blow-out and following damages are significant. The pore pressure is obtained by seismic and well logging data. In this study the pore pressure and over burden pressure through the matrix stress and Tarzaqi equation and other related formulas are calculated. By making a comparison on variation of density log in over normal pressure zones with change of sonic impedance under influence of compressional, shear, and Stonely waves, the correlation level of sonic impedance with density log is studied. The level of correlation and variation trend is recorded in sonic impedance under influence Stonely wave with density log that key factor in recording of over burden pressure and pore pressure in Tarzaqi equation is high. The transition time is in divert relation with porosity and fluid type in the formation and as a consequence to the pore pressure. The density log is a key factor in determination of pore pressure therefore sonic impedance under Stonley wave is denotes well the identification of high pressure besides other used factors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pore%20pressure" title="pore pressure">pore pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=stonely%20wave" title=" stonely wave"> stonely wave</a>, <a href="https://publications.waset.org/abstracts/search?q=density%20log" title=" density log"> density log</a>, <a href="https://publications.waset.org/abstracts/search?q=sonic%20impedance" title=" sonic impedance"> sonic impedance</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20pressure%20zone" title=" high pressure zone"> high pressure zone</a> </p> <a href="https://publications.waset.org/abstracts/14187/investigation-and-analysis-on-pore-pressure-variation-by-sonic-impedance-under-influence-of-compressional-shear-and-stonely-waves-in-high-pressure-zones" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14187.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">395</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">24962</span> Improvement of Piezoresistive Pressure Sensor Accuracy by Means of Current Loop Circuit Using Optimal Digital Signal Processing </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Peter%20A.%20L%E2%80%99vov">Peter A. L’vov</a>, <a href="https://publications.waset.org/abstracts/search?q=Roman%20S.%20Konovalov"> Roman S. Konovalov</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexey%20A.%20L%E2%80%99vov"> Alexey A. L’vov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The paper presents the advanced digital modification of the conventional current loop circuit for pressure piezoelectric transducers. The optimal DSP algorithms of current loop responses by the maximum likelihood method are applied for diminishing of measurement errors. The loop circuit has some additional advantages such as the possibility to operate with any type of resistance or reactance sensors, and a considerable increase in accuracy and quality of measurements to be compared with AC bridges. The results obtained are dedicated to replace high-accuracy and expensive measuring bridges with current loop circuits. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=current%20loop" title="current loop">current loop</a>, <a href="https://publications.waset.org/abstracts/search?q=maximum%20likelihood%20method" title=" maximum likelihood method"> maximum likelihood method</a>, <a href="https://publications.waset.org/abstracts/search?q=optimal%20digital%20signal%20processing" title=" optimal digital signal processing"> optimal digital signal processing</a>, <a href="https://publications.waset.org/abstracts/search?q=precise%20pressure%20measurement" title=" precise pressure measurement"> precise pressure measurement</a> </p> <a href="https://publications.waset.org/abstracts/22685/improvement-of-piezoresistive-pressure-sensor-accuracy-by-means-of-current-loop-circuit-using-optimal-digital-signal-processing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22685.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">529</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">24961</span> An Image Processing Based Approach for Assessing Wheelchair Cushions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=B.%20Farahani">B. Farahani</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Fadil"> R. Fadil</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Aboonabi"> A. Aboonabi</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Hoffmann"> B. Hoffmann</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Loscheider"> J. Loscheider</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Tavakolian"> K. Tavakolian</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Arzanpour"> S. Arzanpour</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wheelchair users spend long hours in a sitting position, and selecting the right cushion is highly critical in preventing pressure ulcers in that demographic. Pressure mapping systems (PMS) are typically used in clinical settings by therapists to identify the sitting profile and pressure points in the sitting area to select the cushion that fits the best for the users. A PMS is a flexible mat composed of arrays of distributed networks of flexible sensors. The output of the PMS systems is a color-coded image that shows the intensity of the pressure concentration. Therapists use the PMS images to compare different cushions fit for each user. This process is highly subjective and requires good visual memory for the best outcome. This paper aims to develop an image processing technique to analyze the images of PMS and provide an objective measure to assess the cushions based on their pressure distribution mappings. In this paper, we first reviewed the skeletal anatomy of the human sitting area and its relation to the PMS image. This knowledge is then used to identify the important features that must be considered in image processing. We then developed an algorithm based on those features to analyze the images and rank them according to their fit to the users' needs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dynamic%20cushion" title="dynamic cushion">dynamic cushion</a>, <a href="https://publications.waset.org/abstracts/search?q=image%20processing" title=" image processing"> image processing</a>, <a href="https://publications.waset.org/abstracts/search?q=pressure%20mapping%20system" title=" pressure mapping system"> pressure mapping system</a>, <a href="https://publications.waset.org/abstracts/search?q=wheelchair" title=" wheelchair"> wheelchair</a> </p> <a href="https://publications.waset.org/abstracts/138115/an-image-processing-based-approach-for-assessing-wheelchair-cushions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138115.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">170</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">24960</span> Dynamic Foot Pressure Measurement System Using Optical Sensors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tanapon%20Keatsamarn">Tanapon Keatsamarn</a>, <a href="https://publications.waset.org/abstracts/search?q=Chuchart%20Pintavirooj"> Chuchart Pintavirooj</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Foot pressure measurement provides necessary information for diagnosis diseases, foot insole design, disorder prevention and other application. In this paper, dynamic foot pressure measurement is presented for pressure measuring with high resolution and accuracy. The dynamic foot pressure measurement system consists of hardware and software system. The hardware system uses a transparent acrylic plate and uses steel as the base. The glossy white paper is placed on the top of the transparent acrylic plate and covering with a black acrylic on the system to block external light. Lighting from LED strip entering around the transparent acrylic plate. The optical sensors, the digital cameras, are underneath the acrylic plate facing upwards. They have connected with software system to process and record foot pressure video in avi file. Visual Studio 2017 is used for software system using OpenCV library. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=foot" title="foot">foot</a>, <a href="https://publications.waset.org/abstracts/search?q=foot%20pressure" title=" foot pressure"> foot pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=image%20processing" title=" image processing"> image processing</a>, <a href="https://publications.waset.org/abstracts/search?q=optical%20sensors" title=" optical sensors"> optical sensors</a> </p> <a href="https://publications.waset.org/abstracts/89148/dynamic-foot-pressure-measurement-system-using-optical-sensors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/89148.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">247</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">24959</span> Prediction of Formation Pressure Using Artificial Intelligence Techniques</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulmalek%20Ahmed">Abdulmalek Ahmed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Formation pressure is the main function that affects drilling operation economically and efficiently. Knowing the pore pressure and the parameters that affect it will help to reduce the cost of drilling process. Many empirical models reported in the literature were used to calculate the formation pressure based on different parameters. Some of these models used only drilling parameters to estimate pore pressure. Other models predicted the formation pressure based on log data. All of these models required different trends such as normal or abnormal to predict the pore pressure. Few researchers applied artificial intelligence (AI) techniques to predict the formation pressure by only one method or a maximum of two methods of AI. The objective of this research is to predict the pore pressure based on both drilling parameters and log data namely; weight on bit, rotary speed, rate of penetration, mud weight, bulk density, porosity and delta sonic time. A real field data is used to predict the formation pressure using five different artificial intelligence (AI) methods such as; artificial neural networks (ANN), radial basis function (RBF), fuzzy logic (FL), support vector machine (SVM) and functional networks (FN). All AI tools were compared with different empirical models. AI methods estimated the formation pressure by a high accuracy (high correlation coefficient and low average absolute percentage error) and outperformed all previous. The advantage of the new technique is its simplicity, which represented from its estimation of pore pressure without the need of different trends as compared to other models which require a two different trend (normal or abnormal pressure). Moreover, by comparing the AI tools with each other, the results indicate that SVM has the advantage of pore pressure prediction by its fast processing speed and high performance (a high correlation coefficient of 0.997 and a low average absolute percentage error of 0.14%). In the end, a new empirical correlation for formation pressure was developed using ANN method that can estimate pore pressure with a high precision (correlation coefficient of 0.998 and average absolute percentage error of 0.17%). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Artificial%20Intelligence%20%28AI%29" title="Artificial Intelligence (AI)">Artificial Intelligence (AI)</a>, <a href="https://publications.waset.org/abstracts/search?q=Formation%20pressure" title=" Formation pressure"> Formation pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=Artificial%20Neural%20Networks%20%28ANN%29" title=" Artificial Neural Networks (ANN)"> Artificial Neural Networks (ANN)</a>, <a href="https://publications.waset.org/abstracts/search?q=Fuzzy%20Logic%20%28FL%29" title=" Fuzzy Logic (FL)"> Fuzzy Logic (FL)</a>, <a href="https://publications.waset.org/abstracts/search?q=Support%20Vector%20Machine%20%28SVM%29" title=" Support Vector Machine (SVM)"> Support Vector Machine (SVM)</a>, <a href="https://publications.waset.org/abstracts/search?q=Functional%20Networks%20%28FN%29" title=" Functional Networks (FN)"> Functional Networks (FN)</a>, <a href="https://publications.waset.org/abstracts/search?q=Radial%20Basis%20Function%20%28RBF%29" title=" Radial Basis Function (RBF)"> Radial Basis Function (RBF)</a> </p> <a href="https://publications.waset.org/abstracts/95931/prediction-of-formation-pressure-using-artificial-intelligence-techniques" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/95931.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">149</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">24958</span> Flame Spread along Fuel Cylinders in High Pressures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yanli%20Zhao">Yanli Zhao</a>, <a href="https://publications.waset.org/abstracts/search?q=Jian%20Chen"> Jian Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Shouxiang%20Lu"> Shouxiang Lu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Flame spread over solid fuels in high pressure situations such as nuclear containment shells and hyperbaric oxygen chamber has potential to result in catastrophic disaster, thus requiring best knowledge. This paper reveals experimentally the flame spread behaviors over fuel cylinders in high pressures. The fuel used in this study is polyethylene and polymethyl methacrylate cylinders with 4mm diameter. Ambient gas is fixed as air and total pressures are varied from naturally normal pressure (100kPa) to elevated pressure (400kPa). Flame appearance, burning rate and flame spread were investigated experimentally and theoretically. Results show that high pressure significantly affects the flame appearance, which is as the pressure increases, flame color changes from luminous yellow to orange and the orange part extends down towards the base of flame. Besides, the average flame width and height, and the burning rate are proved to increase with increasing pressure. What is more, flame spread rates become higher as pressure increases due to the enhancement of heat transfer from flame to solid surface in elevated pressure by performing a simplified heat balance analysis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cylinder%20fuel" title="cylinder fuel">cylinder fuel</a>, <a href="https://publications.waset.org/abstracts/search?q=flame%20spread" title=" flame spread"> flame spread</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20pressure" title=" high pressure"> high pressure</a> </p> <a href="https://publications.waset.org/abstracts/74731/flame-spread-along-fuel-cylinders-in-high-pressures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74731.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">378</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">24957</span> High-pressure Crystallographic Characterization of f-block Element Complexes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nicholas%20B.%20Beck">Nicholas B. Beck</a>, <a href="https://publications.waset.org/abstracts/search?q=Thomas%20E.%20Albrecht-Sch%C3%B6nzart">Thomas E. Albrecht-Schönzart</a> </p> <p class="card-text"><strong>Abstract:</strong></p> High-pressure results in decreases in the bond lengths of metal-ligand bonds, which has proven to be incredibly informative in uncovering differences in bonding between lanthanide and actinide complexes. The degree of f-electron contribution to the metal ligand bonds has been observed to increase under pressure by a far greater degree in the actinides than the lanthanides, as revealed by spectroscopic studies. However, the actual changes in bond lengths have yet to be quantified, although computationally predicted. By using high-pressure crystallographic techniques, crystal structures of lanthanide complexes have been obtained at pressures up to 5 GPa for both hard and soft-donor ligands. These studies have revealed some unpredicted changes in the coordination environment as well as provided experimental support to computational results <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=crystallography" title="crystallography">crystallography</a>, <a href="https://publications.waset.org/abstracts/search?q=high-pressure" title=" high-pressure"> high-pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=lanthanide" title=" lanthanide"> lanthanide</a>, <a href="https://publications.waset.org/abstracts/search?q=materials" title=" materials"> materials</a> </p> <a href="https://publications.waset.org/abstracts/153193/high-pressure-crystallographic-characterization-of-f-block-element-complexes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153193.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">105</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24956</span> Blood Pressure and Anthropometric Measurements: A Correlational Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdul-Monim%20Batiha">Abdul-Monim Batiha</a>, <a href="https://publications.waset.org/abstracts/search?q=Manar%20AlAzzam"> Manar AlAzzam</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20ALBashtawy"> Mohammed ALBashtawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Loai%20Tawalbeh"> Loai Tawalbeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20%20Tubaishat"> Ahmad Tubaishat</a>, <a href="https://publications.waset.org/abstracts/search?q=Fadwa%20N.%20Alhalaiqa"> Fadwa N. Alhalaiqa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Obesity is the major modifiable risk factor for many chronic illnesses especially high blood pressure. Objectives: To evaluate the relationship between anthropometric indices and high blood pressure, and which one was most strongly correlated with high blood pressure in Jordanian population. Methods: A cross-sectional study was conducted with a total 622 students and workers from three Jordanian universities. Results: Nearly half of the participant are overweight (34.7%) and obese (15.4%) and hypertension was detected among 138 (22.2%) of the participants. Linear correlation was significant (p<0.01) between both systolic blood pressure and diastolic blood pressure for all anthropometric indices, except for A body shape index and diastolic blood pressure was significant at p< 0.05. Stepwise multiple linear regression analysis was used to assess the influence of age and anthropometric measurements. Conclusions: The waist circumference was the only independent predictor of hypertension, showing that this simple measurement may be an importance marker of high blood pressure in Jordanian population. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anthropometric%20indices" title="anthropometric indices">anthropometric indices</a>, <a href="https://publications.waset.org/abstracts/search?q=Jordan" title=" Jordan"> Jordan</a>, <a href="https://publications.waset.org/abstracts/search?q=blood%20pressure" title=" blood pressure"> blood pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=cross-sectional%20study" title=" cross-sectional study"> cross-sectional study</a>, <a href="https://publications.waset.org/abstracts/search?q=obesity" title=" obesity"> obesity</a>, <a href="https://publications.waset.org/abstracts/search?q=hypertension" title=" hypertension"> hypertension</a>, <a href="https://publications.waset.org/abstracts/search?q=waist%20circumference" title=" waist circumference"> waist circumference</a> </p> <a href="https://publications.waset.org/abstracts/54804/blood-pressure-and-anthropometric-measurements-a-correlational-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54804.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">288</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24955</span> The Effect of High-Pressure Processing on the Inactivation of Saccharomyces cerevisiae in Different Concentration of Manuka Honey and Its Relation with ° Brix</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Noor%20Akhmazillah%20Fauzi">Noor Akhmazillah Fauzi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Mehdi%20Farid"> Mohammed Mehdi Farid</a>, <a href="https://publications.waset.org/abstracts/search?q=Filipa%20V.%20Silva"> Filipa V. Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this paper is to investigate if different concentration of Manuka honey (as a model food) has a major influence on the inactivation of Saccharomyces cerevisiae (as the testing microorganism) after subjecting it to HPP. Honey samples with different sugar concentrations (20, 30, 40, 50, 60 and 70 °Brix) were prepared aseptically using sterilized distilled water. No dilution of honey was made for the 80 °Brix sample. For the 0 °Brix sample (control), sterilized distilled water was used. Thermal treatment at 55 °C for 10 min (conventionally applied in honey pasteurisation in industry) was carried out for comparison purpose. S. cerevisiae cell numbers in honey samples were established before and after each HPP and thermal treatment. The number of surviving cells was determined after a proper dilution of the untreated and treated samples by the viable plate count method. S. cerevisiae cells, in different honey concentrations (0 to 80 °Brix), subjected to 600 MPa (at ambient temperature) showed an increasing resistance to inactivation with °Brix. A significant correlation (p < 0.05) between cell reduction and °Brix was found. Cell reduction in high pressure-treated samples varied linearly with °Brix (R2 > 0.9), confirming that the baroprotective effect of the food is due to sugar content. This study has practical implications in establishing efficient process design for commercial manufacturing of high sugar food products and on the potential use of HPP for such products. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=high%20pressure%20processing" title="high pressure processing">high pressure processing</a>, <a href="https://publications.waset.org/abstracts/search?q=honey" title=" honey"> honey</a>, <a href="https://publications.waset.org/abstracts/search?q=Saccharomyces%20cerevisiae" title=" Saccharomyces cerevisiae"> Saccharomyces cerevisiae</a>, <a href="https://publications.waset.org/abstracts/search?q=%C2%B0Brix" title=" °Brix"> °Brix</a> </p> <a href="https://publications.waset.org/abstracts/43341/the-effect-of-high-pressure-processing-on-the-inactivation-of-saccharomyces-cerevisiae-in-different-concentration-of-manuka-honey-and-its-relation-with-brix" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43341.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">353</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">24954</span> Enhancing Seawater Desalination Efficiency with Combined Reverse Osmosis and Vibratory Shear-Enhanced Processing for Higher Conversion Rates and Reduced Energy Consumption</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reda%20Askouri">Reda Askouri</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Moussetad"> Mohamed Moussetad</a>, <a href="https://publications.waset.org/abstracts/search?q=Rhma%20Adhiri"> Rhma Adhiri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Reverse osmosis (RO) is one of the most widely used techniques for seawater desalination. However, the conversion rate of this method is generally limited to 35-45% due to the high-pressure capacity of the membranes. Additionally, the specific energy consumption (SEC) for seawater desalination is high, necessitating energy recovery systems to minimise energy consumption. This study aims to enhance the performance of seawater desalination by combining RO with a vibratory shear-enhanced processing (VSEP) technique. The RO unit in this study comprises two stages, each powered by a hydraulic turbocharger that increases the pressure in both stages. The concentrate from the second stage is then directly processed by VSEP technology. The results demonstrate that the permeate water obtained exhibits high quality and that the conversion rate is significantly increased, reaching high percentages with low SEC. Furthermore, the high concentration of total solids in the concentrate allows for potential exploitation within the environmental protection framework. By valorising the concentrated waste, it’s possible to reduce the environmental impact while increasing the overall efficiency of the desalination process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=specific%20energy%20consumption" title="specific energy consumption">specific energy consumption</a>, <a href="https://publications.waset.org/abstracts/search?q=vibratory%20shear%20enhanced%20process" title=" vibratory shear enhanced process"> vibratory shear enhanced process</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20challenge" title=" environmental challenge"> environmental challenge</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20recovery" title=" water recovery"> water recovery</a> </p> <a href="https://publications.waset.org/abstracts/193007/enhancing-seawater-desalination-efficiency-with-combined-reverse-osmosis-and-vibratory-shear-enhanced-processing-for-higher-conversion-rates-and-reduced-energy-consumption" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/193007.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">12</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">24953</span> Study on Moisture-Induced-Damage of Semi-Rigid Base under Hydrodynamic Pressure</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Baofeng%20Pan">Baofeng Pan</a>, <a href="https://publications.waset.org/abstracts/search?q=Heng%20Liu"> Heng Liu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Because of the high strength and large carrying capacity, the semi-rigid base is widely used in modern road engineering. However, hydrodynamic pressure, which is one of the main factors to cause early damage of semi-rigid base, cannot be avoided in the nature environment when pavement is subjected to some loadings such as the passing vehicles. In order to investigating how moisture-induced-damage of semi-rigid base influenced by hydrodynamic pressure, a new and effective experimental research method is provided in this paper. The results show that: (a) The washing action of high hydrodynamic pressure is the direct cause of strength reducing of road semi-rigid base. (b) The damage of high hydrodynamic pressure mainly occurs at the beginning of the scoring test and with the increasing of testing time the influence reduces. (c) Under the same hydrodynamic pressure, the longer the specimen health age, the stronger ability to resist moisture induced damage. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=semi-rigid%20base" title="semi-rigid base">semi-rigid base</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrodynamic%20pressure" title=" hydrodynamic pressure"> hydrodynamic pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=moisture-induced-damage" title=" moisture-induced-damage"> moisture-induced-damage</a>, <a href="https://publications.waset.org/abstracts/search?q=experimental%20research" title=" experimental research"> experimental research</a> </p> <a href="https://publications.waset.org/abstracts/29849/study-on-moisture-induced-damage-of-semi-rigid-base-under-hydrodynamic-pressure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29849.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">318</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">24952</span> Biosensors as Analytical Tools in Legume Processing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20V.%20Ncube">S. V. Ncube</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20I.%20O.%20Jideani"> A. I. O. Jideani</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20T.%20Gwata"> E. T. Gwata</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The plight of food insecurity in developing countries has led to renewed interest in underutilized legumes. Their nutritional versatility, desirable functionality, pharmaceutical value and inherent bioactive compounds have drawn the attention of researchers. This has provoked the development of value added products with the aim of commercially exploiting their full potential. However processing of these legumes leads to changes in nutritional composition as affected by processing variables like pH, temperature and pressure. There is therefore a need for process control and quality assurance during production of the value added products. However, conventional methods for microbiological and biochemical identification are labour intensive and time-consuming. Biosensors offer rapid and affordable methods to assure the quality of the products. They may be used to quantify nutrients and anti-nutrients in the products while manipulating and monitoring variables such as pH, temperature, pressure and oxygen that affect the quality of the final product. This review gives an overview of the types of biosensors used in the food industry, their advantages and disadvantages and their possible application in processing of legumes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=legume%20processing" title="legume processing">legume processing</a>, <a href="https://publications.waset.org/abstracts/search?q=biosensors" title=" biosensors"> biosensors</a>, <a href="https://publications.waset.org/abstracts/search?q=quality%20control" title=" quality control"> quality control</a>, <a href="https://publications.waset.org/abstracts/search?q=nutritional%20versatility" title=" nutritional versatility"> nutritional versatility</a> </p> <a href="https://publications.waset.org/abstracts/15738/biosensors-as-analytical-tools-in-legume-processing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15738.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">492</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">24951</span> Simultaneous Measurement of Wave Pressure and Wind Speed with the Specific Instrument and the Unit of Measurement Description</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Branimir%20Jurun">Branimir Jurun</a>, <a href="https://publications.waset.org/abstracts/search?q=Elza%20Jurun"> Elza Jurun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The focus of this paper is the description of an instrument called 'Quattuor 45' and defining of wave pressure measurement. Special attention is given to measurement of wave pressure created by the wind speed increasing obtained with the instrument 'Quattuor 45' in the investigated area. The study begins with respect to theoretical attitudes and numerous up to date investigations related to the waves approaching the coast. The detailed schematic view of the instrument is enriched with pictures from ground plan and side view. Horizontal stability of the instrument is achieved by mooring which relies on two concrete blocks. Vertical wave peak monitoring is ensured by one float above the instrument. The synthesis of horizontal stability and vertical wave peak monitoring allows to create a representative database for wave pressure measuring. Instrument ‘Quattuor 45' is named according to the way the database is received. Namely, the electronic part of the instrument consists of the main chip ‘Arduino', its memory, four load cells with the appropriate modules and the wind speed sensor 'Anemometers'. The 'Arduino' chip is programmed to store two data from each load cell and two data from the anemometer on SD card each second. The next part of the research is dedicated to data processing. All measured results are stored automatically in the database and after that detailed processing is carried out in the MS Excel. The result of the wave pressure measurement is synthesized by the unit of measurement kN/m². This paper also suggests a graphical presentation of the results by multi-line graph. The wave pressure is presented on the left vertical axis, while the wind speed is shown on the right vertical axis. The time of measurement is displayed on the horizontal axis. The paper proposes an algorithm for wind speed measurements showing the results for two characteristic winds in the Adriatic Sea, called 'Bura' and 'Jugo'. The first of them is the northern wind that reaches high speeds, causing low and extremely steep waves, where the pressure of the wave is relatively weak. On the other hand, the southern wind 'Jugo' has a lower speed than the northern wind, but due to its constant duration and constant speed maintenance, it causes extremely long and high waves that cause extremely high wave pressure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=instrument" title="instrument">instrument</a>, <a href="https://publications.waset.org/abstracts/search?q=measuring%20unit" title=" measuring unit"> measuring unit</a>, <a href="https://publications.waset.org/abstracts/search?q=waves%20pressure%20metering" title=" waves pressure metering"> waves pressure metering</a>, <a href="https://publications.waset.org/abstracts/search?q=wind%20seed%20measurement" title=" wind seed measurement"> wind seed measurement</a> </p> <a href="https://publications.waset.org/abstracts/82845/simultaneous-measurement-of-wave-pressure-and-wind-speed-with-the-specific-instrument-and-the-unit-of-measurement-description" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82845.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">197</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">24950</span> Effect of High-Pressure and Thermal Treatments on Quality Markers of Strawberry Nectars</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Karen%20Louise%20Lacey">Karen Louise Lacey</a>, <a href="https://publications.waset.org/abstracts/search?q=Dario%20Javier%20Pavon%20Vargas"> Dario Javier Pavon Vargas</a>, <a href="https://publications.waset.org/abstracts/search?q=Massimiliano%20Rinaldi"> Massimiliano Rinaldi</a>, <a href="https://publications.waset.org/abstracts/search?q=Luca%20Cattani"> Luca Cattani</a>, <a href="https://publications.waset.org/abstracts/search?q=Sara%20Rainieri"> Sara Rainieri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The effects of high-pressure processing (HPP) and thermal treatments (TT) on quality markers of strawberry nectar (12 °Brix, 3,3 pH) was studied before and after treatments. TT and HPP treatments ensured a 3-log aerobic bacteria inactivation. No significant difference was detected in terms of pH and °Brix. TT samples were less red (a* less positive) than all HPP treated samples, while all samples were less red than the control. Apparent viscosity was significantly increased in all the HPP treatments, at 10 1/s shear rate, control was 79.04±7.94 mPa•s and the 600 MPa-20 min treatment were 327.10±1.64 mPa•s. This work suggests that HPP treatments may maintain the quality markers of strawberry nectar better. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=HPP" title="HPP">HPP</a>, <a href="https://publications.waset.org/abstracts/search?q=strawberry%20nectar" title=" strawberry nectar"> strawberry nectar</a>, <a href="https://publications.waset.org/abstracts/search?q=colour" title=" colour "> colour </a>, <a href="https://publications.waset.org/abstracts/search?q=viscosity" title="viscosity">viscosity</a> </p> <a href="https://publications.waset.org/abstracts/147906/effect-of-high-pressure-and-thermal-treatments-on-quality-markers-of-strawberry-nectars" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/147906.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">130</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24949</span> The Mainspring of Controlling of Low Pressure Steam Drum at Lower Pressure than Its Design for Adjusting the Urea Synthesis Pressure</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reza%20Behtash">Reza Behtash</a>, <a href="https://publications.waset.org/abstracts/search?q=Enayat%20Enayati"> Enayat Enayati</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The pool condenser is in principal a horizontal reactor, containing a bundle of U-tubes for heat exchange, coupling to low pressure steam drum. Condensation of gas takes place in a condensed pool around the tubes of the condenser. The heat of condensation is removed by the generation of low pressure steam on the inner tube side of the bundle. A circulation pump transfers ample boiler feed water to these tubes. The pressure of the steam generated influenced the heat flux. Changing the steam pressure means changing the steam condensate temperature and therefore the temperature difference between the tube side and the shell side. 2NH3 + CO2 ↔ NH2COONH4 + Heat. This reaction is exothermic and according to Le Chatelier's Principle if the heat is not removed enough, it will come back to left side and generate of the gas and so the Urea synthesis pressure will rise. The most principal reasons for high Urea synthesis pressure are non proportional of Ammonia/Dioxide Carbon ratio and too high a pressure in low pressure steam drum. Proportional of Ammonia/Dioxide Carbon ratio is 3.0 and normal pressure for low pressure steam drum is 4.5 bar. As regards these conditions were proportional but we could not control the synthesis pressure the plant endangered, therefore we had to control the steam drum pressure at about 3.5 bar. While we opened the pool condenser, we found the partition plate used to divide inlet and outlet boiler feed water to tubes, was broken partially and so amount of boiler feed water bypass the tubes and the heat was not removed totally and it resulted in the generation of gases and high pressure in synthesis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=boiler" title="boiler">boiler</a>, <a href="https://publications.waset.org/abstracts/search?q=pressure" title=" pressure"> pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=pool%20condenser" title=" pool condenser"> pool condenser</a>, <a href="https://publications.waset.org/abstracts/search?q=partition%20plate" title=" partition plate"> partition plate</a> </p> <a href="https://publications.waset.org/abstracts/28750/the-mainspring-of-controlling-of-low-pressure-steam-drum-at-lower-pressure-than-its-design-for-adjusting-the-urea-synthesis-pressure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28750.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">383</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">24948</span> A Study of the Prevalence of Hypertension and Pre Hypertension in Adolescence Age between 10-17 in Ahvaz (2008-2009)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Armaghan%20Moravej%20Aleali">Armaghan Moravej Aleali</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Mahmoud%20Latifi"> Seyed Mahmoud Latifi</a>, <a href="https://publications.waset.org/abstracts/search?q=Homeira%20Rashidi"> Homeira Rashidi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objective: High blood pressure in a risk factor for some disease like stroke, coronary heart disease, and renal failure. High blood pressure in children is an increasing health problem. The aim of this present was to determine prevalence of hypertension and pre-hypertension age between 10 to 17 years old. Material & Methods: This descriptive-analytic study was conducted using multiphase sampling method in Ahvaz (Southwest of Iran). A questionnaire include: height, weight, and body mass index, systolic and diastolic blood pressures filled for each participant. Blood pressure was measured twice for each person. For the diagnosis of hypertension, the fourth report of the Diagnosis, Evaluation, and Treatment of High Blood Pressure in Children and Adolescents of the National Health Institute of United States was used. Results: The subject participants of the study were 1707children and adolescents including 922 boys (54%) and 785 girls 46%). The prevalence of high blood pressure was 1.7% (boys 2.5% girls 0.8%). The prevalence of pre-hypertension was 9 % (7.6% in boys, 10.6% in girls). The mean systolic and diastolic blood pressures increased with increasing body mass index. Conclusion: In this study, the prevalence of high blood pressure was found to be lower than other studies in our country. The prevalence of the high blood pressure in boys was significantly higher than girls. This study, like other studies, showed a high correlation between being overweight and an increase in systolic and diastolic blood pressure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hypertension" title="hypertension">hypertension</a>, <a href="https://publications.waset.org/abstracts/search?q=pre-hypertension" title=" pre-hypertension"> pre-hypertension</a>, <a href="https://publications.waset.org/abstracts/search?q=childhood" title=" childhood"> childhood</a>, <a href="https://publications.waset.org/abstracts/search?q=adolescence" title=" adolescence"> adolescence</a> </p> <a href="https://publications.waset.org/abstracts/16542/a-study-of-the-prevalence-of-hypertension-and-pre-hypertension-in-adolescence-age-between-10-17-in-ahvaz-2008-2009" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16542.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">460</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">24947</span> Calibration Methods of Direct and Indirect Reading Pressure Sensor and Uncertainty Determination</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sinem%20O.%20Aktan">Sinem O. Aktan</a>, <a href="https://publications.waset.org/abstracts/search?q=Musa%20Y.%20Akkurt"> Musa Y. Akkurt</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Experimental pressure calibration methods can be classified into three areas: (1) measurements in liquid or gas systems, (2) measurements in static-solid media systems, and (3) measurements in dynamic shock systems. Fluid (liquid and gas) systems high accuracies can be obtainable and commonly used for the calibration method of a pressure sensor. Pressure calibrations can be performed for metrological traceability in two ways, which are on-site (field) and in the laboratory. Laboratory and on-site calibration procedures and the requirements of the DKD-R-6-1 and Euramet cg-17 guidelines will also be addressed. In this study, calibration methods of direct and indirect reading pressure sensor and measurement uncertainty contributions will be explained. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pressure%20metrology" title="pressure metrology">pressure metrology</a>, <a href="https://publications.waset.org/abstracts/search?q=pressure%20calibration" title=" pressure calibration"> pressure calibration</a>, <a href="https://publications.waset.org/abstracts/search?q=dead-weight%20tester" title=" dead-weight tester"> dead-weight tester</a>, <a href="https://publications.waset.org/abstracts/search?q=pressure%20uncertainty" title=" pressure uncertainty"> pressure uncertainty</a> </p> <a href="https://publications.waset.org/abstracts/128491/calibration-methods-of-direct-and-indirect-reading-pressure-sensor-and-uncertainty-determination" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/128491.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">150</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">24946</span> CFD Simulation of the Inlet Pressure Effects on the Cooling Capacity Enhancement for Vortex Tube with Couple Vortex Chambers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nader%20Pourmahmoud">Nader Pourmahmoud</a>, <a href="https://publications.waset.org/abstracts/search?q=Amir%20Hassanzadeh"> Amir Hassanzadeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article investigates the effects of inlet pressure in a newly introduced vortex tube which has been equipped with an additional vortex chamber. A 3-D compressible turbulent flow computation has been carried out toward analysis of complex flow field in this apparatus. Numerical results of flows are derived by utilizing the standard k-ε turbulence model for analyzing high rotating complex flow field. The present research has focused on cooling effect and given a characteristics curve for minimum cool temperature. In addition, the effect of inlet pressure for both chambers has been studied in details. To be presented numerical results show that the effect of inlet pressure in second chamber has more important role in improving the performance of the vortex tube than first one. By increasing the pressure in the second chamber, cold outlet temperature reaches a higher decrease. When both chambers are fed with high pressure fluid, best operation condition of vortex tube occurs. However, it is not possible to feed both chambers with high pressure due to the conditions of working environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=energy%20separation" title="energy separation">energy separation</a>, <a href="https://publications.waset.org/abstracts/search?q=inlet%20pressure" title=" inlet pressure"> inlet pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20simulation" title=" numerical simulation"> numerical simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=vortex%20chamber" title=" vortex chamber"> vortex chamber</a>, <a href="https://publications.waset.org/abstracts/search?q=vortex%20tube" title=" vortex tube"> vortex tube</a> </p> <a href="https://publications.waset.org/abstracts/18358/cfd-simulation-of-the-inlet-pressure-effects-on-the-cooling-capacity-enhancement-for-vortex-tube-with-couple-vortex-chambers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18358.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">370</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24945</span> Alpha-To-Omega Phase Transition in Bulk Nanostructured Ti and (α+β) Ti Alloys</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Askar%20Kilmametov">Askar Kilmametov</a>, <a href="https://publications.waset.org/abstracts/search?q=Julia%20Ivanisenko"> Julia Ivanisenko</a>, <a href="https://publications.waset.org/abstracts/search?q=Boris%20Straumal"> Boris Straumal</a>, <a href="https://publications.waset.org/abstracts/search?q=Horst%20Hahn"> Horst Hahn</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The high-pressure α- to ω-phase transition was discovered in elemental Ti and Zr fifty years ago using static high pressure and then observed to appear between 2 and 12 GPa at room temperature, depending on the experimental technique, the pressure environment, and the sample purity. The fact that ω-phase is retained in a metastable state in ambient condition after the removal of the pressure has been used to check the changes in magnetic and superconductive behavior, electron band structure and mechanical properties. However, the fundamental knowledge on a combination of both mechanical treatment and high applied pressure treatments for ω-phase formation in Ti alloys is currently lacking and has to be studied in relation to improved mechanical properties of bulk nanostructured states. In the present study, nanostructured (α+β) Ti alloys containing β-stabilizing elements such as Co, Fe, Cr, Nb were performed by severe plastic deformation, namely high pressure torsion (HPT) technique. HPT-induced α- to ω-phase transformation was revealed in dependence on applied pressure and shear strains by means of X-ray diffraction, transmission electron microscopy, and differential scanning calorimetry. The transformation kinetics was compared with the kinetics of pressure-induced transition. Orientation relationship between α-, β- and ω-phases was taken into consideration and analyzed according to theoretical calculation proposed earlier. The influence of initial state before HPT appeared to be considerable for subsequent α- to ω-phase transition. Thermal stability of the HPT-induced ω-phase was discussed as well in the frame of mechanical behavior of Ti and Ti-based alloys produced by shear deformation under high applied pressure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bulk%20nanostructured%20materials" title="bulk nanostructured materials">bulk nanostructured materials</a>, <a href="https://publications.waset.org/abstracts/search?q=high%20pressure%20phase%20transitions" title=" high pressure phase transitions"> high pressure phase transitions</a>, <a href="https://publications.waset.org/abstracts/search?q=severe%20plastic%20deformation" title=" severe plastic deformation"> severe plastic deformation</a>, <a href="https://publications.waset.org/abstracts/search?q=titanium%20alloys" title=" titanium alloys"> titanium alloys</a> </p> <a href="https://publications.waset.org/abstracts/55970/alpha-to-omega-phase-transition-in-bulk-nanostructured-ti-and-av-ti-alloys" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/55970.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">419</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24944</span> Metal Berthelot Tubes with Windows for Observing Cavitation under Static Negative Pressure </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=K.%20Hiro">K. Hiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Imai"> Y. Imai</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Sasayama"> T. Sasayama</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cavitation under static negative pressure is not revealed well. The Berthelot method to generate such negative pressure can be a means to study cavitation inception. In this study, metal Berthelot tubes built in observation windows are newly developed and are checked whether high static negative pressure is generated or not. Negative pressure in the tube with a pair of a corundum plate and an aluminum gasket increased with temperature cycles. The trend was similar to that as reported before. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Berthelot%20method" title="Berthelot method">Berthelot method</a>, <a href="https://publications.waset.org/abstracts/search?q=cavitation" title=" cavitation"> cavitation</a>, <a href="https://publications.waset.org/abstracts/search?q=negative%20pressure" title=" negative pressure"> negative pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=observation" title=" observation"> observation</a> </p> <a href="https://publications.waset.org/abstracts/48683/metal-berthelot-tubes-with-windows-for-observing-cavitation-under-static-negative-pressure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/48683.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">326</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24943</span> Design of New Alloys from Al-Ti-Zn-Mg-Cu System by in situ Al3Ti Formation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Joao%20Paulo%20De%20Oliveira%20Paschoal">Joao Paulo De Oliveira Paschoal</a>, <a href="https://publications.waset.org/abstracts/search?q=Andre%20Victor%20Rodrigues%20Dantas"> Andre Victor Rodrigues Dantas</a>, <a href="https://publications.waset.org/abstracts/search?q=Fernando%20Almeida%20Da%20Silva%20Fernandes"> Fernando Almeida Da Silva Fernandes</a>, <a href="https://publications.waset.org/abstracts/search?q=Eugenio%20Jose%20Zoqui"> Eugenio Jose Zoqui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the adoption of High Pressure Die Casting technologies for the production of automotive bodies by the famous Giga Castings, the technology of processing metal alloys in the semi-solid state (SSM) becomes interesting because it allows for higher product quality, such as lower porosity and shrinkage voids. However, the alloys currently processed are derived from the foundry industry and are based on the Al-Si-(Cu-Mg) system. High-strength alloys, such as those of the Al-Zn-Mg-Cu system, are not usually processed, but the benefits of using this system, which is susceptible to heat treatments, can be associated with the advantages obtained by processing in the semi-solid state, promoting new possibilities for production routes and improving product performance. The current work proposes a new range of alloys to be processed in the semi-solid state through the modification of aluminum alloys of the Al-Zn-Mg-Cu system by the in-situ formation of Al3Ti intermetallic. Such alloys presented the thermodynamic stability required for semi-solid processing, with a sensitivity below 0.03(Celsius degrees * -1), in a wide temperature range. Furthermore, these alloys presented high hardness after aging heat treatment, reaching 190HV. Therefore, they are excellent candidates for the manufacture of parts that require low levels of defects and high mechanical strength. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aluminum%20alloys" title="aluminum alloys">aluminum alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=semisolid%20metals%20processing" title=" semisolid metals processing"> semisolid metals processing</a>, <a href="https://publications.waset.org/abstracts/search?q=intermetallics" title=" intermetallics"> intermetallics</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20treatment" title=" heat treatment"> heat treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=titanium%20aluminide" title=" titanium aluminide"> titanium aluminide</a> </p> <a href="https://publications.waset.org/abstracts/194660/design-of-new-alloys-from-al-ti-zn-mg-cu-system-by-in-situ-al3ti-formation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/194660.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">10</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">24942</span> Design of Saddle Support for Horizontal Pressure Vessel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Vinod%20Kumar">Vinod Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Navin%20Kumar"> Navin Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Surjit%20Angra"> Surjit Angra</a>, <a href="https://publications.waset.org/abstracts/search?q=Prince%20Sharma"> Prince Sharma</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents the design analysis of saddle support of a horizontal pressure vessel. Since saddle have the vital role to support the pressure vessel and to maintain its stability, it should be designed in such a way that it can afford the vessel load and internal pressure of the vessel due to liquid contained in the vessel. A model of horizontal pressure vessel and saddle support is created in Ansys. Stresses are calculated using mathematical approach and Ansys software. The analysis reveals the zone of high localized stress at the junction part of the pressure vessel and saddle support due to operating conditions. The results obtained by both the methods are compared with allowable stress value for safe designing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ANSYS" title="ANSYS">ANSYS</a>, <a href="https://publications.waset.org/abstracts/search?q=pressure%20vessel" title=" pressure vessel"> pressure vessel</a>, <a href="https://publications.waset.org/abstracts/search?q=saddle" title=" saddle"> saddle</a>, <a href="https://publications.waset.org/abstracts/search?q=support" title=" support"> support</a> </p> <a href="https://publications.waset.org/abstracts/14966/design-of-saddle-support-for-horizontal-pressure-vessel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14966.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">742</span> </span> </div> </div> <ul class="pagination"> 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