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Yaghoubi</title> <meta name="description" content="Search results for: Siamak Yaghoubi"> <meta name="keywords" content="Siamak Yaghoubi"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none 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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="Siamak Yaghoubi"> <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> 38</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Siamak Yaghoubi</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">38</span> Effectiveness of the New Perilaryngeal Airway (CobraPLA™) in Comparison with the Laryngeal Mask Airway (LMA™) to Improve Airway Sealing Pressures among Obese and Overweight Patients</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Yaghoubi">Siamak Yaghoubi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Reza%20Abootorabi"> Mohammad Reza Abootorabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamid%20Kayalha"> Hamid Kayalha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objective: The study was aimed to evaluate the applicability of the Cobra Perilaryngeal Airway (Cobra PLATM) for patients under general anesthesia and also compare result with the Laryngeal Mask Airway (LMA). Methods: Seventy three obese and overweight patients were included in the study. The patients were randomly assigned to either LMA or Cobra PLATM. Time required for intubation, successful intubation attempt, airway sealing pressure, the incidences of complications including blood staining, sore throat and dysphagia were assessed and noted. Results: Thirty six and thirty seven patients were allocated randomly to either LMA or Cobra PLATM, respectively. Most of the patients were male and were in Mallampati Class II airway in both groups. The first attempt and overall insertion success for the Cobra PLATM was significantly more frequent compared to the LMA (p<0.05). Tube insertion was more successful (Cobra PLATM, 94%; LMA™, 77%; P = 0.027) with the Cobra PLATM. The insertion times were similar with the Cobra PLATM and LMA™ (Cobra PLATM, 29.94±16.35s; LMA™, 27.00±7.88s). The airway sealing pressure in the Cobra PLATM (24.80±0.90 H2O) was significantly more than LMA™ (19.13 ±0.58 H2O, p<0.001). Sore throat was more frequent in the LMA™ groups that did not reach statistical significance (Fisher’s exact test, P = 0.33). Incidences of blood staining on airway tube were seen for both groups that was higher in the Cobra PLATM group (Fisher’s exact test, P = 0.02). Incidence of dysphagia was not different between the two groups. Conclusion: The CobraPLA™ was found to be safe and low complications, better airway sealing and high rate of the first insertion success for suing in obese and overweight patients. The study recommended using the CobraPLA™ as a rescue device in an emergency situation among obese and overweight patients. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CobraPLA%E2%84%A2" title="CobraPLA™">CobraPLA™</a>, <a href="https://publications.waset.org/abstracts/search?q=flexible%20laryngeal%20mask%20airway" title=" flexible laryngeal mask airway"> flexible laryngeal mask airway</a>, <a href="https://publications.waset.org/abstracts/search?q=obese%20patients" title=" obese patients"> obese patients</a>, <a href="https://publications.waset.org/abstracts/search?q=perilaryngeal%20airway" title=" perilaryngeal airway"> perilaryngeal airway</a> </p> <a href="https://publications.waset.org/abstracts/10146/effectiveness-of-the-new-perilaryngeal-airway-cobrapla-in-comparison-with-the-laryngeal-mask-airway-lma-to-improve-airway-sealing-pressures-among-obese-and-overweight-patients" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10146.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">37</span> Comparison of the Postoperative Analgesic Effects of Morphine, Paracetamol, and Ketorolac in Patient-Controlled Analgesia in the Patients Undergoing Open Cholecystectomy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Yaghoubi">Siamak Yaghoubi</a>, <a href="https://publications.waset.org/abstracts/search?q=Vahideh%20Rashtchi"> Vahideh Rashtchi</a>, <a href="https://publications.waset.org/abstracts/search?q=Marzieh%20Khezri"> Marzieh Khezri</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamid%20Kayalha"> Hamid Kayalha</a>, <a href="https://publications.waset.org/abstracts/search?q=Monadi%20Hamidfar"> Monadi Hamidfar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background and objectives: Effective postoperative pain management in abdominal surgeries, which are painful procedures, plays an important role in reducing postoperative complications and increasing patient’s satisfaction. There are many techniques for pain control, one of which is Patient-Controlled Analgesia (PCA). The aim of this study was to compare the analgesic effects of morphine, paracetamol and ketorolac in the patients undergoing open cholecystectomy, using PCA method. Material and Methods: This randomized controlled trial was performed on 330 ASA (American Society of Anesthesiology) I-II patients ( three equal groups, n=110) who were scheduled for elective open cholecystectomy in Shahid Rjaee hospital of Qazvin, Iran from August 2013 until September 2015. All patients were managed by general anesthesia with TIVA (Total Intra Venous Anesthesia) technique. The control group received morphine with maximum dose of 0.02mg/kg/h, the paracetamol group received paracetamol with maximum dose of 1mg/kg/h, and the ketorolac group received ketorolac with maximum daily dose of 60mg using IV-PCA method. The parameters of pain, nausea, hemodynamic variables (BP and HR), pruritus, arterial oxygen desaturation, patient’s satisfaction and pain score were measured every two hours for 8 hours following operation in all groups. Results: There were no significant differences in demographic data between the three groups. there was a statistically significant difference with regard to the mean pain score at all times between morphine and paracetamol, morphine and ketorolac, and paracetamol and ketorolac groups (P<0.001). Results indicated a reduction with time in the mean level of postoperative pain in all three groups. At all times the mean level of pain in ketorolac group was less than that in the other two groups (p<0.001). Conclusion: According to the results of this study ketorolac is more effective than morphine and paracetamol in postoperative pain control in the patients undergoing open cholecystectomy, using PCA method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=analgesia" title="analgesia">analgesia</a>, <a href="https://publications.waset.org/abstracts/search?q=cholecystectomy" title=" cholecystectomy"> cholecystectomy</a>, <a href="https://publications.waset.org/abstracts/search?q=ketorolac" title=" ketorolac"> ketorolac</a>, <a href="https://publications.waset.org/abstracts/search?q=morphine" title=" morphine"> morphine</a>, <a href="https://publications.waset.org/abstracts/search?q=paracetamol" title=" paracetamol"> paracetamol</a> </p> <a href="https://publications.waset.org/abstracts/59949/comparison-of-the-postoperative-analgesic-effects-of-morphine-paracetamol-and-ketorolac-in-patient-controlled-analgesia-in-the-patients-undergoing-open-cholecystectomy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59949.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">36</span> Experimental Study on Stabilisation of a Soft Soil by Alkaline Activation of Industrial By-Products</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammadjavad%20Yaghoubi">Mohammadjavad Yaghoubi</a>, <a href="https://publications.waset.org/abstracts/search?q=Arul%20Arulrajah"> Arul Arulrajah</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahdi%20M.%20Disfani"> Mahdi M. Disfani</a>, <a href="https://publications.waset.org/abstracts/search?q=Suksun%20Horpibulsuk"> Suksun Horpibulsuk</a>, <a href="https://publications.waset.org/abstracts/search?q=Myint%20W.%20Bo"> Myint W. Bo</a>, <a href="https://publications.waset.org/abstracts/search?q=Stephen%20P.%20Darmawan"> Stephen P. Darmawan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Utilising waste materials, such as fly ash (FA) and slag (S) stockpiled in landfills, has drawn the attention of researchers and engineers in the recent years. There is a great potential for usage of these wastes in ground improvement projects, especially where deep deposits of soft compressible soils exist. This paper investigates the changes in the strength development of a high water content soft soil stabilised with alkaline activated FA and S, termed as geopolymer binder, to use in deep soil mixing technology. The strength improvement and the changes in the microstructure of the mixtures have been studied. The results show that using FA and S-based geopolymers can increases the strength significantly. Furthermore, utilising FA and S in ground improvement projects, where large amounts of binders are required, can be a solution to the disposal of these wastes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alkaline%20activation" title="alkaline activation">alkaline activation</a>, <a href="https://publications.waset.org/abstracts/search?q=fly%20ash" title=" fly ash"> fly ash</a>, <a href="https://publications.waset.org/abstracts/search?q=geopolymer" title=" geopolymer"> geopolymer</a>, <a href="https://publications.waset.org/abstracts/search?q=slag" title=" slag"> slag</a>, <a href="https://publications.waset.org/abstracts/search?q=strength%20development" title=" strength development"> strength development</a> </p> <a href="https://publications.waset.org/abstracts/74598/experimental-study-on-stabilisation-of-a-soft-soil-by-alkaline-activation-of-industrial-by-products" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74598.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">267</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">35</span> Exploring Encounters with Angels in Near-Death Experiences with Reference to Islamic Religious Sources</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zahra%20Yaghoubi">Zahra Yaghoubi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the initial occurrences that, according to observations of those who have temporarily experienced death, arises is encountering beings or individuals possessing supernatural powers. For some, these beings are described as beautiful and radiant, while for others, they are portrayed as dark and terrifying. In some experiences, they are mentioned as young and beautiful individuals. Islamic religious sources refer to these beings as angels or celestial beings assigned by God to take and collect human souls. This research, conducted through library methods, examines and justifies the initial stage of observations from an Islamic perspective based on first and second-hand religious sources. It relies on evidence, observations, and oral narratives of near-death experiencers, as well as interviews published in television programs. The goal is to investigate Islamic sources and validate the presence of angels in near-death experiences. The use of visual interview reports direct reliance on the narrative rather than the written text by someone other than the experiencer, is among the main criteria for enhancing transparency and authenticity in conveying the individual's experiences. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=angel" title="angel">angel</a>, <a href="https://publications.waset.org/abstracts/search?q=angels%20of%20death" title=" angels of death"> angels of death</a>, <a href="https://publications.waset.org/abstracts/search?q=Islamic%20sources" title=" Islamic sources"> Islamic sources</a>, <a href="https://publications.waset.org/abstracts/search?q=near-death%20experiences" title=" near-death experiences"> near-death experiences</a>, <a href="https://publications.waset.org/abstracts/search?q=death" title=" death"> death</a>, <a href="https://publications.waset.org/abstracts/search?q=soul" title=" soul"> soul</a> </p> <a href="https://publications.waset.org/abstracts/182821/exploring-encounters-with-angels-in-near-death-experiences-with-reference-to-islamic-religious-sources" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/182821.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">55</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">34</span> Assessments of Internal Erosion in a Landfill Due to Changes in the Groundwater Level</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Feizi">Siamak Feizi</a>, <a href="https://publications.waset.org/abstracts/search?q=Gunvor%20Baardvik"> Gunvor Baardvik</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Soil erosion has special consequences for landfills that are more serious than those found at conventional construction sites. Different potential heads between two sides of a landfill and the subsequent movement of water through pores within the soil body could trigger the soil erosion and construction instability. Such a condition was encountered in a landfill project in the southern part of Norway. To check the risk of internal erosion due to changes in the groundwater level (because of seasonal flooding in the river), a series of numerical simulations by means of Geo-Seep software was conducted. Output of this study provides a total picture of the landfill stability, possibilities of erosions, and necessary measures to prevent or reduce the risk for the landfill operator. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=erosion" title="erosion">erosion</a>, <a href="https://publications.waset.org/abstracts/search?q=seepage" title=" seepage"> seepage</a>, <a href="https://publications.waset.org/abstracts/search?q=landfill" title=" landfill"> landfill</a>, <a href="https://publications.waset.org/abstracts/search?q=stability" title=" stability"> stability</a> </p> <a href="https://publications.waset.org/abstracts/134955/assessments-of-internal-erosion-in-a-landfill-due-to-changes-in-the-groundwater-level" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/134955.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">135</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">33</span> Value of Mergers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reza%20Yaghoubi">Reza Yaghoubi</a>, <a href="https://publications.waset.org/abstracts/search?q=Stuart%20Locke"> Stuart Locke</a>, <a href="https://publications.waset.org/abstracts/search?q=Jenny%20Gibb"> Jenny Gibb</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study investigates sources of value in mergers and acquisitions. While much emphasis is put on operating synergies from acquisitions the evidence provided in this study shows that the difference between the WACCs of the combined firm and the merging firms may have a significant role on the value effect of mergers. These findings suggest that changes in the capital structure of the combined firm, compared to capital structures of the acquirer and the target, play a key role in determining the value of an acquisition. Moreover, findings of this study suggest that reducing the cost of capital of the combined firm, compared to the merging firms, is value creating even in the absence of operating synergies. Furthermore, this study shows that the component of value associated with the difference between the WACCs of the combined firm and the acquirer is mainly determined by leverage of the acquiring firm and the method of payment. While cash payment is value creating, high leverage of the acquirer prior to an acquisition can destroy value by raising the cost of capital of the firm. This is especially important to managers when they are planning an acquisition. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=acquisitions" title="acquisitions">acquisitions</a>, <a href="https://publications.waset.org/abstracts/search?q=mergers" title=" mergers"> mergers</a>, <a href="https://publications.waset.org/abstracts/search?q=synergy" title=" synergy"> synergy</a>, <a href="https://publications.waset.org/abstracts/search?q=value" title=" value"> value</a>, <a href="https://publications.waset.org/abstracts/search?q=WACC" title=" WACC"> WACC</a> </p> <a href="https://publications.waset.org/abstracts/30712/value-of-mergers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30712.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">269</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">32</span> Proposing an Index for Determining Key Knowledge Management Processes in Decision Making Units Using Fuzzy Quality Function Deployment (QFD), Data Envelopment Analysis (DEA) Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sadegh%20Abedi">Sadegh Abedi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Yaghoubi"> Ali Yaghoubi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamidreza%20Mashatzadegan"> Hamidreza Mashatzadegan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper proposes an approach to identify key processes required by an organization in the field of knowledge management and aligning them with organizational objectives. For this purpose, first, organization’s most important non-financial objectives which are impacted by knowledge management processes are identified and then, using a quality house, are linked with knowledge management processes which are regarded as technical elements. Using this method, processes that are in need of improvement and more attention are prioritized based on their significance. This means that if a process has more influence on organization’s objectives and is in a dire situation comparing to others, is prioritized for choice and improvement. In this research process dominance is considered to be an influential element in process ranking (in addition to communication matrix). This is the reason for utilizing DEA techniques for prioritizing processes in quality house. Results of implementing the method in Khuzestan steel company represents this method’s capability of identifying key processes that require improvements in organization’s knowledge management system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=knowledge%20management" title="knowledge management">knowledge management</a>, <a href="https://publications.waset.org/abstracts/search?q=organizational%20performance" title=" organizational performance"> organizational performance</a>, <a href="https://publications.waset.org/abstracts/search?q=fuzzy%20data" title=" fuzzy data"> fuzzy data</a>, <a href="https://publications.waset.org/abstracts/search?q=envelopment%20analysis" title=" envelopment analysis"> envelopment analysis</a> </p> <a href="https://publications.waset.org/abstracts/53456/proposing-an-index-for-determining-key-knowledge-management-processes-in-decision-making-units-using-fuzzy-quality-function-deployment-qfd-data-envelopment-analysis-dea-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53456.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">31</span> Developing a Multidimensional Adjustment Scale</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadereh%20Sohrabi%20Shegefti">Nadereh Sohrabi Shegefti</a>, <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Samani"> Siamak Samani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Level of adjustment is the first index to check mental health. The aim of this study was developing a valid and reliable Multidimensional Adjustment Scale (MAS). The sample consisted of 150 college students. Multidimensional adjustment scale and Depression, Anxiety, and stress scale (DASS) were used in this study. Principle factor analysis, Pearson correlation coefficient, and Cornbach's Alpha were used to check the validity and reliability of the MAS. Principle component factor analysis showed a 5 factor solution for the MAS. Alpha coefficients for the MAS sub scales were ranged between .69 to .83. Test-retest reliability for MAS was .88 and the mean of sub scales- total score correlation was .88. All these indexes revealed an acceptable reliability and validity for the MAS. The MAS is a short assessment instrument with good acceptable psychometric properties to use in clinical filed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=psychological%20adjustment" title="psychological adjustment">psychological adjustment</a>, <a href="https://publications.waset.org/abstracts/search?q=psychometric%20properties" title=" psychometric properties"> psychometric properties</a>, <a href="https://publications.waset.org/abstracts/search?q=validity" title=" validity"> validity</a>, <a href="https://publications.waset.org/abstracts/search?q=Pearson%20correlation" title=" Pearson correlation "> Pearson correlation </a> </p> <a href="https://publications.waset.org/abstracts/17161/developing-a-multidimensional-adjustment-scale" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17161.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">634</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">30</span> Stabilisation of a Soft Soil by Alkaline Activation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammadjavad%20Yaghoubi">Mohammadjavad Yaghoubi</a>, <a href="https://publications.waset.org/abstracts/search?q=Arul%20Arulrajah"> Arul Arulrajah</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahdi%20M.%20Disfani"> Mahdi M. Disfani</a>, <a href="https://publications.waset.org/abstracts/search?q=Suksun%20Horpibulsuk"> Suksun Horpibulsuk</a>, <a href="https://publications.waset.org/abstracts/search?q=Myint%20W.%20Bo"> Myint W. Bo</a>, <a href="https://publications.waset.org/abstracts/search?q=Stephen%20P.%20Darmawan"> Stephen P. Darmawan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper investigates the changes in the strength development of a high water content soft soil stabilised with alkaline activation of fly ash (FA) to use in deep soil mixing (DSM) technology. The content of FA was 20% by dry mass of soil, and the alkaline activator was sodium silicate (Na2SiO3). Samples were cured for 3, 7, 14, 28 and 56 days to evaluate the effect of curing time on strength development. To study the effect of adding slag (S) to the mixture on the strength development, 5% S was replaced with FA. In addition, the effect of the initial unit weight of samples on strength development was studied by preparing specimens with two different static compaction stresses. This was to replicate the field conditions where during implementing the DSM technique, the pressure on the soil while being mixed, increases with depth. Unconfined compression strength (UCS), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) tests were conducted on the specimens. The results show that adding S to the FA based geopolymer activated by Na2SiO3 decreases the strength. Furthermore, samples prepared at a higher unit weight demonstrate greater strengths. Moreover, samples prepared at lower unit weight reached their final strength at about 14 days of curing, whereas the strength development continues to 56 days for specimens prepared at a higher unit weight. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alkaline%20activation" title="alkaline activation">alkaline activation</a>, <a href="https://publications.waset.org/abstracts/search?q=curing%20time" title=" curing time"> curing time</a>, <a href="https://publications.waset.org/abstracts/search?q=fly%20ash" title=" fly ash"> fly ash</a>, <a href="https://publications.waset.org/abstracts/search?q=geopolymer" title=" geopolymer"> geopolymer</a>, <a href="https://publications.waset.org/abstracts/search?q=slag" title=" slag"> slag</a> </p> <a href="https://publications.waset.org/abstracts/67439/stabilisation-of-a-soft-soil-by-alkaline-activation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/67439.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">338</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">29</span> A Numerical Study on the Connection of an SC Wall to an RC Foundation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Epackachi">Siamak Epackachi</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrew%20S.%20Whittaker"> Andrew S. Whittaker</a>, <a href="https://publications.waset.org/abstracts/search?q=Amit%20H.%20Varma"> Amit H. Varma</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There are a large number of methods to connect SC walls to RC foundations. An experimental study of the cyclic nonlinear behavior of SC walls in the NEES laboratory at the University at Buffalo used a connection detail involving the post-tensioning of a steel baseplate to the SC wall to a RC foundation. This type of connection introduces flexibility that influenced substantially the global response of the SC walls. The assumption of a rigid base, which would be commonly made by practitioners, would lead to a substantial overestimation of initial stiffness. This paper presents an analytical approach to characterize the rotational flexibility and to predict the initial stiffness of flexure-critical SC wall piers with baseplate connection. The good agreement between the analytical and test results confirmed the utility of the proposed method for calculating the initial stiffness of an SC wall with baseplate connection. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=steel-plate%20composite%20shear%20wall" title="steel-plate composite shear wall">steel-plate composite shear wall</a>, <a href="https://publications.waset.org/abstracts/search?q=flexure-critical%20wall" title="flexure-critical wall">flexure-critical wall</a>, <a href="https://publications.waset.org/abstracts/search?q=cyclic%20loading" title=" cyclic loading"> cyclic loading</a>, <a href="https://publications.waset.org/abstracts/search?q=analytical%20model" title=" analytical model"> analytical model</a> </p> <a href="https://publications.waset.org/abstracts/25769/a-numerical-study-on-the-connection-of-an-sc-wall-to-an-rc-foundation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25769.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">340</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">28</span> Improving Coverage in Wireless Sensor Networks Using Particle Swarm Optimization Algorithm</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ehsan%20Abdolzadeh">Ehsan Abdolzadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanaz%20Nouri"> Sanaz Nouri</a>, <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Khalaj"> Siamak Khalaj</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Today WSNs have many applications in different fields like the environment, military operations, discoveries, monitoring operations, and so on. Coverage size and energy consumption are the important challenges that these networks need to face. This paper tries to solve the problem of coverage with a requirement of k-coverage and minimum energy consumption. In order to minimize energy consumption, visual sensor networks have been used that observe and process just those targets that are located in their view direction. As a result, sensor rotations have decreased, and subsequently, energy consumption has been minimized. To solve the problem of coverage particle swarm optimization, coverage optimization has been able to ensure coverage requirement together with minimizing sensor rotations while meeting the problem requirement of k≤14. So energy consumption has decreased, and this could extend the sensors’ lifetime subsequently. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=K%20coverage" title="K coverage">K coverage</a>, <a href="https://publications.waset.org/abstracts/search?q=particle%20union%20optimization%20algorithm" title=" particle union optimization algorithm"> particle union optimization algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=wireless%20sensor%20networks" title=" wireless sensor networks"> wireless sensor networks</a>, <a href="https://publications.waset.org/abstracts/search?q=visual%20sensor%20networks" title=" visual sensor networks"> visual sensor networks</a> </p> <a href="https://publications.waset.org/abstracts/158131/improving-coverage-in-wireless-sensor-networks-using-particle-swarm-optimization-algorithm" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158131.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">115</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">27</span> Impact of Climate Change on Water Level and Properties of Gorgan Bay in the Southern Caspian Sea</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Jamshidi">Siamak Jamshidi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Caspian Sea is the Earth's largest inland body of water. One of the most important issues related to the sea is water level changes. For measuring and recording Caspian Sea water level, there are at least three gauges and radar equipment in Anzali, Nowshahr and Amirabad Ports along the southern boundary of the Caspian Sea. It seems that evaporation, hotter surface air temperature, and in general climate change is the main reasons for its water level fluctuations. Gorgan Bay in the eastern part of the southern boundary of the Caspian Sea is one of the areas under the effect of water level fluctuation. Based on the results of field measurements near the Gorgan Bay mouth temperature ranged between 24°C–28°C and salinity was about 13.5 PSU in midsummer while temperature changed between 10-11.5°C and salinity mostly was 15-16.5 PSU in mid-winter. The decrease of Caspian Sea water level and rivers outflow are the two most important factors for the increase in water salinity of the Gorgan Bay. Results of field observations showed that, due to atmospheric factors, climate changes and decreasing of precipitation over the southern basin of the Caspian Sea during last decades, the water level of bay was reduced around 0.5 m. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Caspian%20Sea" title="Caspian Sea">Caspian Sea</a>, <a href="https://publications.waset.org/abstracts/search?q=Gorgan%20Bay" title=" Gorgan Bay"> Gorgan Bay</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20level%20fluctuation" title=" water level fluctuation"> water level fluctuation</a>, <a href="https://publications.waset.org/abstracts/search?q=climate%20changes" title=" climate changes"> climate changes</a> </p> <a href="https://publications.waset.org/abstracts/98305/impact-of-climate-change-on-water-level-and-properties-of-gorgan-bay-in-the-southern-caspian-sea" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/98305.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">26</span> Using New Machine Algorithms to Classify Iranian Musical Instruments According to Temporal, Spectral and Coefficient Features</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ronak%20Khosravi">Ronak Khosravi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahmood%20Abbasi%20Layegh"> Mahmood Abbasi Layegh</a>, <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Haghipour"> Siamak Haghipour</a>, <a href="https://publications.waset.org/abstracts/search?q=Avin%20Esmaili"> Avin Esmaili</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a study on classification of musical woodwind instruments using a small set of features selected from a broad range of extracted ones by the sequential forward selection method was carried out. Firstly, we extract 42 features for each record in the music database of 402 sound files belonging to five different groups of Flutes (end blown and internal duct), Single –reed, Double –reed (exposed and capped), Triple reed and Quadruple reed. Then, the sequential forward selection method is adopted to choose the best feature set in order to achieve very high classification accuracy. Two different classification techniques of support vector machines and relevance vector machines have been tested out and an accuracy of up to 96% can be achieved by using 21 time, frequency and coefficient features and relevance vector machine with the Gaussian kernel function. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=coefficient%20features" title="coefficient features">coefficient features</a>, <a href="https://publications.waset.org/abstracts/search?q=relevance%20vector%20machines" title=" relevance vector machines"> relevance vector machines</a>, <a href="https://publications.waset.org/abstracts/search?q=spectral%20features" title=" spectral features"> spectral features</a>, <a href="https://publications.waset.org/abstracts/search?q=support%20vector%20machines" title=" support vector machines"> support vector machines</a>, <a href="https://publications.waset.org/abstracts/search?q=temporal%20features" title=" temporal features"> temporal features</a> </p> <a href="https://publications.waset.org/abstracts/54321/using-new-machine-algorithms-to-classify-iranian-musical-instruments-according-to-temporal-spectral-and-coefficient-features" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54321.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">25</span> Software-Defined Networks in Utility Power Networks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ava%20Salmanpour">Ava Salmanpour</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanieh%20Saeedi"> Hanieh Saeedi</a>, <a href="https://publications.waset.org/abstracts/search?q=Payam%20Rouhi"> Payam Rouhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Elahe%20Hamzeil"> Elahe Hamzeil</a>, <a href="https://publications.waset.org/abstracts/search?q=Shima%20Alimohammadi"> Shima Alimohammadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Hossein%20Khalaj"> Siamak Hossein Khalaj</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Asadian"> Mohammad Asadian</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Software-defined network (SDN) is a network architecture designed to control network using software application in a central manner. This ability enables remote control of the whole network regardless of the network technology. In fact, in this architecture network intelligence is separated from physical infrastructure, it means that required network components can be implemented virtually using software applications. Today, power networks are characterized by a high range of complexity with a large number of intelligent devices, processing both huge amounts of data and important information. Therefore, reliable and secure communication networks are required. SDNs are the best choice to meet this issue. In this paper, SDN networks capabilities and characteristics will be reviewed and different basic controllers will be compared. The importance of using SDNs to escalate efficiency and reliability in utility power networks is going to be discussed and the comparison between the SDN-based power networks and traditional networks will be explained. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=software-defined%20network" title="software-defined network">software-defined network</a>, <a href="https://publications.waset.org/abstracts/search?q=SDNs" title=" SDNs"> SDNs</a>, <a href="https://publications.waset.org/abstracts/search?q=utility%20network" title=" utility network"> utility network</a>, <a href="https://publications.waset.org/abstracts/search?q=open%20flow" title=" open flow"> open flow</a>, <a href="https://publications.waset.org/abstracts/search?q=communication" title=" communication"> communication</a>, <a href="https://publications.waset.org/abstracts/search?q=gas%20and%20electricity" title=" gas and electricity"> gas and electricity</a>, <a href="https://publications.waset.org/abstracts/search?q=controller" title=" controller"> controller</a> </p> <a href="https://publications.waset.org/abstracts/155341/software-defined-networks-in-utility-power-networks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/155341.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">113</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">24</span> Realistic Testing Procedure of Power Swing Blocking Function in Distance Relay</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farzad%20Razavi">Farzad Razavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Behrooz%20Taheri"> Behrooz Taheri</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Parpaei"> Mohammad Parpaei</a>, <a href="https://publications.waset.org/abstracts/search?q=Mehdi%20Mohammadi%20Ghalesefidi"> Mehdi Mohammadi Ghalesefidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Zarei"> Siamak Zarei</a> </p> <p class="card-text"><strong>Abstract:</strong></p> As one of the major problems in protecting large-dimension power systems, power swing and its effect on distance have caused a lot of damages to energy transfer systems in many parts of the world. Therefore, power swing has gained attentions of many researchers, which has led to invention of different methods for power swing detection. Power swing detection algorithm is highly important in distance relay, but protection relays should have general requirements such as correct fault detection, response rate, and minimization of disturbances in a power system. To ensure meeting the requirements, protection relays need different tests during development, setup, maintenance, configuration, and troubleshooting steps. This paper covers power swing scheme of the modern numerical relay protection, 7sa522 to address the effect of the different fault types on the function of the power swing blocking. In this study, it was shown that the different fault types during power swing cause different time for unblocking distance relay. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=power%20swing" title="power swing">power swing</a>, <a href="https://publications.waset.org/abstracts/search?q=distance%20relay" title=" distance relay"> distance relay</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20system%20protection" title=" power system protection"> power system protection</a>, <a href="https://publications.waset.org/abstracts/search?q=relay%20test" title=" relay test"> relay test</a>, <a href="https://publications.waset.org/abstracts/search?q=transient%20in%20power%20system" title=" transient in power system"> transient in power system</a> </p> <a href="https://publications.waset.org/abstracts/82234/realistic-testing-procedure-of-power-swing-blocking-function-in-distance-relay" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82234.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">385</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">23</span> Effect of Composite Material on Damping Capacity Improvement of Cutting Tool in Machining Operation Using Taguchi Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Ghorbani">Siamak Ghorbani</a>, <a href="https://publications.waset.org/abstracts/search?q=Nikolay%20Ivanovich%20Polushin"> Nikolay Ivanovich Polushin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Chatter vibrations, occurring during cutting process, cause vibration between the cutting tool and workpiece, which deteriorates surface roughness and reduces tool life. The purpose of this study is to investigate the influence of cutting parameters and tool construction on surface roughness and vibration in turning of aluminum alloy AA2024. A new design of cutting tool is proposed, which is filled up with epoxy granite in order to improve damping capacity of the tool. Experiments were performed at the lathe using carbide cutting insert coated with TiC and two different cutting tools made of AISI 5140 steel. Taguchi L9 orthogonal array was applied to design of experiment and to optimize cutting conditions. By the help of signal-to-noise ratio and analysis of variance the optimal cutting condition and the effect of the cutting parameters on surface roughness and vibration were determined. Effectiveness of Taguchi method was verified by confirmation test. It was revealed that new cutting tool with epoxy granite has reduced vibration and surface roughness due to high damping properties of epoxy granite in toolholder. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ANOVA" title="ANOVA">ANOVA</a>, <a href="https://publications.waset.org/abstracts/search?q=damping%20capacity" title=" damping capacity"> damping capacity</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20roughness" title=" surface roughness"> surface roughness</a>, <a href="https://publications.waset.org/abstracts/search?q=Taguchi%20method" title=" Taguchi method"> Taguchi method</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration" title=" vibration"> vibration</a> </p> <a href="https://publications.waset.org/abstracts/40328/effect-of-composite-material-on-damping-capacity-improvement-of-cutting-tool-in-machining-operation-using-taguchi-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40328.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">311</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">22</span> The First Fungal Identification from Mini-BAL of Critical COVID-19 Patients</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fatemeh%20Fallah">Fatemeh Fallah</a>, <a href="https://publications.waset.org/abstracts/search?q=Ensieh%20Lotfali"> Ensieh Lotfali</a>, <a href="https://publications.waset.org/abstracts/search?q=Leila%20Azimi"> Leila Azimi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hannan%20Khodaei"> Hannan Khodaei</a>, <a href="https://publications.waset.org/abstracts/search?q=Maryam%20Rajabnejad"> Maryam Rajabnejad</a>, <a href="https://publications.waset.org/abstracts/search?q=Nafiseh%20Abdollahi"> Nafiseh Abdollahi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hossein%20Tayebi"> Hossein Tayebi</a>, <a href="https://publications.waset.org/abstracts/search?q=Saham%20Ansari"> Saham Ansari</a>, <a href="https://publications.waset.org/abstracts/search?q=Saeedeh%20Yaghoubi"> Saeedeh Yaghoubi</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdollah%20Karimi"> Abdollah Karimi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Coronavirus disease 2019 (COVID-19) has become a worldwide issue due to its high prevalence and rapid transmission. Fungal infections have been detected in COVID-19 patients, leading to increased morbidity and mortality. Objectives: This study aimed to isolate Aspergillus fumigatus and Mucor spp. on mini-bronchoalveolar lavage samples obtained from children with COVID-19 hospitalized in an Iranian children’s hospital. Methods: A cross-sectional descriptive study was performed on mini-bronchoalveolar lavage samples from children confirmed positive for COVID-19 admitted to ICU with a ventilator from April 2021 to February 2022. Demographic characteristics were recorded, and fungal DNA was extracted from mini-BAL samples taken from children. Nested PCR was made with two primers for Aspergillus fumigatus and Mucor spp. Results: Out of 100 children with COVID-19, all samples were negative for Aspergillus fumigatus; however, 12 cases were positive for BAL PCR for Mucor spp. Among the 12 patients, fever, shortness of breath, cough, and decreased level of consciousness were reported in 8.3% (n: 1), 16.6% (n: 2), 25% (n: 3), and 25% (n: 3), respectively. Most cases (41.7%; n: 5) suffered from heart disease, followed by underlying malignancy (33.4%; n: 4). All positive BAL PCR for Mucor spp. cases had significantly higher chest CT scan scores and spent more time under a ventilator. Conclusions: The identification of COVID-19 with Mucor spp. was observed among 12% (n: 12) of children hospitalized in a COVID-19 ICU. When dealing with pediatric COVID-19 patients, clinicians should consider the differential diagnosis of fungal co-infections and have a low threshold to begin treatment. Moreover, it is highly advisable to take prophylactic measures, such as properly using corticosteroids and shortening the intubation time. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aspergillosis" title="aspergillosis">aspergillosis</a>, <a href="https://publications.waset.org/abstracts/search?q=COVID-19%20identification" title=" COVID-19 identification"> COVID-19 identification</a>, <a href="https://publications.waset.org/abstracts/search?q=mucormycosis" title=" mucormycosis"> mucormycosis</a>, <a href="https://publications.waset.org/abstracts/search?q=paediatrics" title=" paediatrics"> paediatrics</a> </p> <a href="https://publications.waset.org/abstracts/184705/the-first-fungal-identification-from-mini-bal-of-critical-covid-19-patients" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/184705.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">7</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">21</span> Cylindrical Spacer Shape Optimization for Enhanced Inhalation Therapy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shahab%20Azimi">Shahab Azimi</a>, <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Arzanpour"> Siamak Arzanpour</a>, <a href="https://publications.waset.org/abstracts/search?q=Anahita%20Sayyar"> Anahita Sayyar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Asthma and Chronic obstructive pulmonary disease (COPD) are common lung diseases that have a significant global impact. Pressurized metered dose inhalers (pMDIs) are widely used for treatment, but they can have limitations such as high medication release speed resulting in drug deposition in the mouth or oral cavity and difficulty achieving proper synchronization with inhalation by users. Spacers are add-on devices that improve the efficiency of pMDIs by reducing the release speed and providing space for aerosol particle breakup to have finer and medically effective medication. The aim of this study is to optimize the size and cylindrical shape of spacers to enhance their drug delivery performance. The study was based on fluid dynamics theory and employed Ansys software for simulation and optimization. Results showed that optimization of the spacer's geometry greatly influenced its performance and improved drug delivery. This study provides a foundation for future research on enhancing the efficiency of inhalation therapy for lung diseases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=asthma" title="asthma">asthma</a>, <a href="https://publications.waset.org/abstracts/search?q=COPD" title=" COPD"> COPD</a>, <a href="https://publications.waset.org/abstracts/search?q=pressurized%20metered%20dose%20inhalers" title=" pressurized metered dose inhalers"> pressurized metered dose inhalers</a>, <a href="https://publications.waset.org/abstracts/search?q=spacers" title=" spacers"> spacers</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=shape%20optimization" title=" shape optimization"> shape optimization</a> </p> <a href="https://publications.waset.org/abstracts/162972/cylindrical-spacer-shape-optimization-for-enhanced-inhalation-therapy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/162972.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">97</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">20</span> Peltier Air Conditioning System for Preventing Ambient Heating: An Alternative to Gas Air Conditioners</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Eskandari">Siamak Eskandari</a>, <a href="https://publications.waset.org/abstracts/search?q=Neda%20Ebadi"> Neda Ebadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> After discovering and using Freon as refrigerant in refrigerators and air conditioners, researchers have been working hard to minimize massive environmental damage caused by this type of systems, including ozone depletion, heat production, and urban warming. However, there is a growing concern for global warming and climate change and its impacts on climates. Although gas air conditioners can provide comfort in short term, there are long-term consequences and effects, including global warming, polar ice melting, sea level rising, rising sea surface temperatures, reduction in seasonal precipitation, tropical storms, and drought. In this theoretical and practical study, Peltier electronic chip was used with no gas in the structure and operation. In fact, cooling and heating are based on bipolar electronics. With an innovative method, Peltier air conditioners provide cooling in warm seasons and heating in cold seasons in buildings. Such a system prevents ambient warming. The problem of air circulation between high buildings in large cities and draught will be considerably resolved through the use of the silent fan in the system. In addition, the system is designed and developed in accordance with international standards such as LEED and Energy Star. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=energy" title="energy">energy</a>, <a href="https://publications.waset.org/abstracts/search?q=Building%20cooling%20and%20heating" title=" Building cooling and heating"> Building cooling and heating</a>, <a href="https://publications.waset.org/abstracts/search?q=peltier" title=" peltier"> peltier</a>, <a href="https://publications.waset.org/abstracts/search?q=leed" title=" leed"> leed</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20star" title=" energy star"> energy star</a> </p> <a href="https://publications.waset.org/abstracts/84249/peltier-air-conditioning-system-for-preventing-ambient-heating-an-alternative-to-gas-air-conditioners" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84249.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">195</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">19</span> Bacterial Flora of the Anopheles Fluviatilis S. L. in an Endemic Malaria Area in Southeastern Iran for Candidate Paraterasgenesis Strains</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Hassan%20Moosa-kazemi">Seyed Hassan Moosa-kazemi</a>, <a href="https://publications.waset.org/abstracts/search?q=Jalal%20Mohammadi%20Soleimani"> Jalal Mohammadi Soleimani</a>, <a href="https://publications.waset.org/abstracts/search?q=Hassan%20Vatandoost"> Hassan Vatandoost</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Hassan%20Shirazi"> Mohammad Hassan Shirazi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sara%20Hajikhani"> Sara Hajikhani</a>, <a href="https://publications.waset.org/abstracts/search?q=Roonak%20Bakhtiari"> Roonak Bakhtiari</a>, <a href="https://publications.waset.org/abstracts/search?q=Morteza%20Akbari"> Morteza Akbari</a>, <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Hydarzadeh"> Siamak Hydarzadeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Malaria is an infectious disease and considered most important health problems in the southeast of Iran. Iran is elimination malaria phase and new tool need to vector control. Paraterasgenesis is a new way to cut of life cycle of the malaria parasite. In this study, the microflora of the surface and gut of various stages of Anopheles fluviatilis James as one of the important malaria vector was studied using biochemical and molecular techniques during 2013-2014. Twelve bacteria species were found including; Providencia rettgeri, Morganella morganii, Enterobacter aerogenes, Pseudomonas oryzihabitans, Citrobacter braakii، Citrobacter freundii، Aeromonas hydrophila، Klebsiella oxytoca, Citrobacter koseri, Serratia fonticola، Enterobacter sakazakii and Yersinia pseudotuberculosis. The species of Alcaligenes faecalis, Providencia vermicola and Enterobacter hormaechei were identified in various stages of the vector and confirmed by biochemical and molecular techniques. We found Providencia rettgeri proper candidate for paratransgenesis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anopheles%20fluviatilis" title="Anopheles fluviatilis">Anopheles fluviatilis</a>, <a href="https://publications.waset.org/abstracts/search?q=bacteria" title=" bacteria"> bacteria</a>, <a href="https://publications.waset.org/abstracts/search?q=malaria" title=" malaria"> malaria</a>, <a href="https://publications.waset.org/abstracts/search?q=Paraterasgenesis" title=" Paraterasgenesis"> Paraterasgenesis</a>, <a href="https://publications.waset.org/abstracts/search?q=Southern%20Iran" title=" Southern Iran"> Southern Iran</a> </p> <a href="https://publications.waset.org/abstracts/38738/bacterial-flora-of-the-anopheles-fluviatilis-s-l-in-an-endemic-malaria-area-in-southeastern-iran-for-candidate-paraterasgenesis-strains" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38738.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">491</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">18</span> Marine Litter Dispersion in the Southern Shores of the Caspian Sea (Case Study: Mazandaran Province)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Jamshidi">Siamak Jamshidi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the major environmental problems in the southern coasts of the Caspian Sea is that the marine and coastal debris is being deposited and accumulated due to industrial, urban and tourism activities. Study, sampling and analysis on the type, size, amount and origin of human-made (anthropogenic) waste in the coastal areas of this sea can be very effective in implementing management, cultural and informative programs to reduce marine environmental pollutants. Investigation on marine litter distribution under impact of seawater dynamics was performed for the first time in this research. The rate of entry and distribution of marine and coastal pollutants and wastes, which are mainly of urban, tourist and hospital origin, has multiplied on the southern shore of the Caspian Sea in the last decade. According to the results, the two most important sources of hospital waste in the coastal areas are Tonekabon and Mahmoudabad. In this case, the effect of dynamic parameters of seawater such as flow (with speeds of up to about 1 m/s) and waves, as well as the flow of rivers leading to the shoreline are also influential factors in the distribution of marine litter in the region. Marine litters in the southern coastal region were transported from west to east by the shallow waters of the southern Caspian Sea. In other words, the marine debris density has been observed more in the eastern part. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=southern%20shelf" title="southern shelf">southern shelf</a>, <a href="https://publications.waset.org/abstracts/search?q=coastal%20oceanography" title=" coastal oceanography"> coastal oceanography</a>, <a href="https://publications.waset.org/abstracts/search?q=seawater%20flow" title=" seawater flow"> seawater flow</a>, <a href="https://publications.waset.org/abstracts/search?q=vertical%20structure" title=" vertical structure"> vertical structure</a>, <a href="https://publications.waset.org/abstracts/search?q=marine%20environment" title=" marine environment"> marine environment</a> </p> <a href="https://publications.waset.org/abstracts/173438/marine-litter-dispersion-in-the-southern-shores-of-the-caspian-sea-case-study-mazandaran-province" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/173438.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">71</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">17</span> Antibacterial Activity of Endophytic Bacteria against Multidrug-Resistant Bacteria: Isolation, Characterization, and Antibacterial Activity</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Maryam%20Beiranvand">Maryam Beiranvand</a>, <a href="https://publications.waset.org/abstracts/search?q=Sajad%20Yaghoubi"> Sajad Yaghoubi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Some microbes can colonize plants’ inner tissues without causing obvious damage and can even produce useful bioactive substances. In the present study, the diversity of the endophytic bacteria associated with medicinal plants from Iran was investigated by culturing techniques, molecular gene identification, as well as measuring them for antibacterial activity. Results: In the spring season from 2013 to 2014, 35 herb pharmacology samples were collected, sterilized, meshed, and then cultured on selective media culture. A total of 199 endophytic bacteria were successfully isolated from 35 tissue cultures of medical plants, and sixty-seven out of 199 bacterial isolates were subjected to identification by the 16S rRNA gene sequence analysis method. Based on the sequence similarity gene and phylogenetic analyses, these isolates were grouped into five classes, fourteen orders, seventeen families, twenty-one genera, and forty strains. The most abundant group of endophytic bacteria was actinobacterial, consisting of thirty-two (47%) out of 67 bacterial isolates. Ten (22.3%) out of 67 bacterial isolates remained unidentiﬁed and classified at the genus level. The signature of the 16S rRNA gene formed a distinct line in a phylogenetic tree showing that they might be new species of bacteria. One (5.2%) out of 67 bacterial isolates was still not well categorized. Forty-two out of 67 strains were candidates for antimicrobial activity tests. Nineteen (45%) out of 42 strains showed antimicrobial activity multidrug resistance (MDR); thirteen (68%) out of 19 strains were allocated to classes actinobacteria. Four (21%) out of 19 strains belonged to the Bacillaceae family, one (5.2%) out of 19 strains was the Paenibacillaceae family, and one (5.2%) out of 19 strains belonged to the Pseudomonadaceae family. The other twenty-three strains did not show inhibitory activities. Conclusions: Our research showed a high-level phylogenetic diversity and the intoxicating antibiotic activity of endophytic bacteria in the herb pharmacology of Iran. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Antibacterial%20activity" title="Antibacterial activity">Antibacterial activity</a>, <a href="https://publications.waset.org/abstracts/search?q=endophytic%20bacteria" title=" endophytic bacteria"> endophytic bacteria</a>, <a href="https://publications.waset.org/abstracts/search?q=multidrug-resistant%20bacteria" title=" multidrug-resistant bacteria"> multidrug-resistant bacteria</a>, <a href="https://publications.waset.org/abstracts/search?q=whole%20genom%20sequencing" title=" whole genom sequencing"> whole genom sequencing</a> </p> <a href="https://publications.waset.org/abstracts/164258/antibacterial-activity-of-endophytic-bacteria-against-multidrug-resistant-bacteria-isolation-characterization-and-antibacterial-activity" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164258.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">86</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">16</span> Isolation, Characterization, and Antibacterial Activity of Endophytic Bacteria from Iranian Medicinal Plants</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Maryam%20Beiranvand">Maryam Beiranvand</a>, <a href="https://publications.waset.org/abstracts/search?q=Sajad%20Yaghoubi"> Sajad Yaghoubi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Some microbes can colonize plants’ inner tissues without causing obvious damage and can even produce useful bioactive substances. In the present study, the diversity of the endophytic bacteria associated with medicinal plants from Iran was investigated by culturing techniques, molecular gene identification, as well as measuring them for antibacterial activity. Results: In the spring season from 2013 to 2014, 35 herb pharmacology samples were collected, sterilized, meshed, and then cultured on selective media culture. A total of 199 endophytic bacteria were successfully isolated from 35 tissue cultures of medical plants, and sixty-seven out of 199 bacterial isolates were subjected to identification by the 16S rRNA gene sequence analysis method. Based on the sequence similarity gene and phylogenetic analyses, these isolates were grouped into five classes, fourteen orders, seventeen families, twenty-one genera, and forty strains. The most abundant group of endophytic bacteria was actinobacterial, consisting of thirty-two (47%) out of 67 bacterial isolates. Ten (22.3%) out of 67 bacterial isolates remained unidentiﬁed and classified at the genus level. The signature of the 16S rRNA gene formed a distinct line in a phylogenetic tree showing that they might be new species of bacteria. One (5.2%) out of 67 bacterial isolates was still not well categorized. Forty-two out of 67 strains were candidates for antimicrobial activity tests. Nineteen (45%) out of 42 strains showed antimicrobial activity multidrug-resistance (MDR); thirteen (68%) out of 19 strains were allocated to classes actinobacteria. Four (21%) out of 19 strains belonged to the Bacillaceae family, one (5.2%) out of 19 strains was the Paenibacillaceae family, and one (5.2%) out of 19 strains belonged to the Pseudomonadaceae family. The other twenty-three strains did not show inhibitory activities. Conclusions: Our research showed a high-level phylogenetic diversity and the intoxicating antibiotic activity of endophytic bacteria in the herb pharmacology of Iran. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=medical%20plant" title="medical plant">medical plant</a>, <a href="https://publications.waset.org/abstracts/search?q=endophytic%20bacteria" title=" endophytic bacteria"> endophytic bacteria</a>, <a href="https://publications.waset.org/abstracts/search?q=antimicrobial%20activity" title=" antimicrobial activity"> antimicrobial activity</a>, <a href="https://publications.waset.org/abstracts/search?q=whole%20genome%20sequencing%20analysis" title=" whole genome sequencing analysis"> whole genome sequencing analysis</a> </p> <a href="https://publications.waset.org/abstracts/164252/isolation-characterization-and-antibacterial-activity-of-endophytic-bacteria-from-iranian-medicinal-plants" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164252.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">124</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">15</span> Seismic Response of Large-Scale Rectangular Steel-Plate Concrete Composite Shear Walls</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Epackachi">Siamak Epackachi</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrew%20S.%20Whittaker"> Andrew S. Whittaker</a>, <a href="https://publications.waset.org/abstracts/search?q=Amit%20H.%20Varma"> Amit H. Varma</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An experimental program on steel-plate concrete (SC) composite shear walls was executed in the NEES laboratory at the University at Buffalo. Four large-size specimens were tested under displacement-controlled cyclic loading. The design variables considered in the testing program included wall thickness, reinforcement ratio, and faceplate slenderness ratio. The aspect ratio (height-to-length) of the four walls was 1.0. Each SC wall was installed on top of a re-usable foundation block. A bolted baseplate to RC foundation connection was used for all four walls. The walls were identified to be flexure-critical. This paper presents the damage to SC walls at different drift ratios, the cyclic force-displacement relationships, energy dissipation and equivalent viscous damping ratios, the strain and stress fields in the steel faceplates and the contribution of the steel faceplates to the total shear load, the variation of vertical strain in the steel faceplates along the length of the wall, near the base, at different drift ratios, the contributions of shear, flexure, and base rotation to the total lateral displacement, the displacement ductility of the SC walls, and the cyclic secant stiffness of the four SC walls. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=steel-plate%20composite%20shear%20wall" title="steel-plate composite shear wall">steel-plate composite shear wall</a>, <a href="https://publications.waset.org/abstracts/search?q=safety-related%20nuclear%20structure" title=" safety-related nuclear structure"> safety-related nuclear structure</a>, <a href="https://publications.waset.org/abstracts/search?q=flexure-critical%20wall" title=" flexure-critical wall"> flexure-critical wall</a>, <a href="https://publications.waset.org/abstracts/search?q=cyclic%20loading" title=" cyclic loading"> cyclic loading</a> </p> <a href="https://publications.waset.org/abstracts/25770/seismic-response-of-large-scale-rectangular-steel-plate-concrete-composite-shear-walls" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25770.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">350</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">14</span> Behavioral Assessment of the Role of Brain 5-HT4 Receptors on the Memory and Cognitive Performance in a Rat Model of Alzheimer Disease </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Shahidi">Siamak Shahidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Nasrin%20Hashemi-Firouzi"> Nasrin Hashemi-Firouzi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sara%20Soleimani-Asl"> Sara Soleimani-Asl</a>, <a href="https://publications.waset.org/abstracts/search?q=Alireza%20Komaki"> Alireza Komaki</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Alzheimer's disease (AD) is a neurodegenerative disorder characterized by progressive memory and cognitive performance. Recently, an involvement of the serotonergic system and their receptors are suspected in the AD progression. In the present behavioral study, the effects of BIMU (selective 5-HT4 receptor agonist) on cognition and memory in the rat model of AD was investigated. Material and Methods: The animal model of the AD was induced by intracerebroventricular (Icv) injection of amyloid beta (Aβ) in adult male Wistar rats. Animals were divided into experimental groups included control, sham, Aβ, Aβ +BIMU groups. The treatment substances were icv injected (1 μg/μL) for thirty consecutive days. Then, novel object recognition (NOR) and passive avoidance learning (PAL) tests were applied to investigate memory and cognitive performance. Results: Aβ decrease the discrimination index of NOR test. Also, it increases the time spent in the dark compartment during PAL test, as compared with sham and control groups. In addition, compared to Aβ groups, BIMU significantly increased the discrimination index of NOR test and decreased the time spent in the dark compartment of PAL test. Conclusion: These findings suggest that 5-HT4 receptor activation prevents progression of memory and cognitive impairment in a rat model of AD. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alzheimer%20disease" title="Alzheimer disease">Alzheimer disease</a>, <a href="https://publications.waset.org/abstracts/search?q=cognition" title=" cognition"> cognition</a>, <a href="https://publications.waset.org/abstracts/search?q=memory" title=" memory"> memory</a>, <a href="https://publications.waset.org/abstracts/search?q=serotonin%20receptors" title=" serotonin receptors"> serotonin receptors</a> </p> <a href="https://publications.waset.org/abstracts/102347/behavioral-assessment-of-the-role-of-brain-5-ht4-receptors-on-the-memory-and-cognitive-performance-in-a-rat-model-of-alzheimer-disease" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/102347.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">132</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">13</span> Exposure to Radio Frequency Waves of Mobile Phone and Temperature Changes of Brain Tissue</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Forouharmajd">Farhad Forouharmajd</a>, <a href="https://publications.waset.org/abstracts/search?q=Hossein%20Ebrahimi"> Hossein Ebrahimi</a>, <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Pourabdian"> Siamak Pourabdian</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Prevalent use of cell phones (mobile phones) has led to increasing worries about the effect of radiofrequency waves on the physiology of human body. This study was done to determine different reactions of the temperatures in different depths of brain tissue in confronting with radiofrequency waves of cell phones. Methodology: This study was an empirical research. A cow's brain tissue was placed in a compartment and the effects of radiofrequency waves of the cell phone was analyzed during confrontation and after confrontation, in three different depths of 2, 12, and 22 mm of the tissue, in 4 mm and 4 cm distances of the tissue to a cell phone, for 15 min. Lutron thermometer was used to measure the tissue temperatures. Data analysis was done by Lutron software. Findings: The rate of increasing the temperature at the depth of 22 mm was higher than 2 mm and 12mm depths, during confrontation of the brain tissue at the distance of 4 mm with the cell phone, such that the tissue temperatures at 2, 12, and 22 mm depths increased by 0.29 ˚C, 0.31 ˚C, and 0.37 ˚C, respectively, relative to the base temperature (tissue temperature before confrontation). Moreover, the temperature of brain tissue at the distance of 4 cm by increasing the tissue depth was more than other depths. Increasing the tissue temperature also existed by increasing the brain tissue depth after the confrontation with the cell phone. The temperature of the 22 mm depth increased with higher speed at the time confrontation. Conclusion: Not only radiofrequency waves of cell phones increased the tissue temperature in all the depths of the brain tissue, but also the temperature due to radiofrequency waves of the cell phone was more at the depths higher than 22 mm of the tissue. In fact, the thermal effect of radiofrequency waves was higher in higher depths. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mobile%20phone" title="mobile phone">mobile phone</a>, <a href="https://publications.waset.org/abstracts/search?q=radio%20frequency%20waves" title=" radio frequency waves"> radio frequency waves</a>, <a href="https://publications.waset.org/abstracts/search?q=brain%20tissue" title=" brain tissue"> brain tissue</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature" title=" temperature"> temperature</a> </p> <a href="https://publications.waset.org/abstracts/98613/exposure-to-radio-frequency-waves-of-mobile-phone-and-temperature-changes-of-brain-tissue" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/98613.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">201</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">12</span> A Preliminary Kinematic Comparison of Vive and Vicon Systems for the Accurate Tracking of Lumbar Motion</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yaghoubi%20N.">Yaghoubi N.</a>, <a href="https://publications.waset.org/abstracts/search?q=Moore%20Z."> Moore Z.</a>, <a href="https://publications.waset.org/abstracts/search?q=Van%20Der%20Veen%20S.%20M."> Van Der Veen S. M.</a>, <a href="https://publications.waset.org/abstracts/search?q=Pidcoe%20P.%20E."> Pidcoe P. E.</a>, <a href="https://publications.waset.org/abstracts/search?q=Thomas%20J.%20S."> Thomas J. S.</a>, <a href="https://publications.waset.org/abstracts/search?q=Dexheimer%20B."> Dexheimer B.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Optoelectronic 3D motion capture systems, such as the Vicon kinematic system, are widely utilized in biomedical research to track joint motion. These systems are considered powerful and accurate measurement tools with <2 mm average error. However, these systems are costly and may be difficult to implement and utilize in a clinical setting. 3D virtual reality (VR) is gaining popularity as an affordable and accessible tool to investigate motor control and perception in a controlled, immersive environment. The HTC Vive VR system includes puck-style trackers that seamlessly integrate into its VR environments. These affordable, wireless, lightweight trackers may be more feasible for clinical kinematic data collection. However, the accuracy of HTC Vive Trackers (3.0), when compared to optoelectronic 3D motion capture systems, remains unclear. In this preliminary study, we compared the HTC Vive Tracker system to a Vicon kinematic system in a simulated lumbar flexion task. A 6-DOF robot arm (SCORBOT ER VII, Eshed Robotec/RoboGroup, Rosh Ha’Ayin, Israel) completed various reaching movements to mimic increasing levels of hip flexion (15°, 30°, 45°). Light reflective markers, along with one HTC Vive Tracker (3.0), were placed on the rigid segment separating the elbow and shoulder of the robot. We compared position measures simultaneously collected from both systems. Our preliminary analysis shows no significant differences between the Vicon motion capture system and the HTC Vive tracker in the Z axis, regardless of hip flexion. In the X axis, we found no significant differences between the two systems at 15 degrees of hip flexion but minimal differences at 30 and 45 degrees, ranging from .047 cm ± .02 SE (p = .03) at 30 degrees hip flexion to .194 cm ± .024 SE (p < .0001) at 45 degrees of hip flexion. In the Y axis, we found a minimal difference for 15 degrees of hip flexion only (.743 cm ± .275 SE; p = .007). This preliminary analysis shows that the HTC Vive Tracker may be an appropriate, affordable option for gross motor motion capture when the Vicon system is not available, such as in clinical settings. Further research is needed to compare these two motion capture systems in different body poses and for different body segments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=lumbar" title="lumbar">lumbar</a>, <a href="https://publications.waset.org/abstracts/search?q=vivetracker" title=" vivetracker"> vivetracker</a>, <a href="https://publications.waset.org/abstracts/search?q=viconsystem" title=" viconsystem"> viconsystem</a>, <a href="https://publications.waset.org/abstracts/search?q=3dmotion" title=" 3dmotion"> 3dmotion</a>, <a href="https://publications.waset.org/abstracts/search?q=ROM" title=" ROM"> ROM</a> </p> <a href="https://publications.waset.org/abstracts/170963/a-preliminary-kinematic-comparison-of-vive-and-vicon-systems-for-the-accurate-tracking-of-lumbar-motion" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/170963.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">101</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">11</span> Efficient Use of Power Light-Emitting Diode Chips in the Main Lighting System and in Generating Heat in Intelligent Buildings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Eskandari">Siamak Eskandari</a>, <a href="https://publications.waset.org/abstracts/search?q=Neda%20Ebadi"> Neda Ebadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Among common electronic parts which have been invented and have made a great revolution in the lighting system through the world, certainly LEDs have no rival. These small parts with their very low power consumption, very dazzling and powerful light and small size and with their extremely high lifetime- compared to incandescent bulbs and compact fluorescent lamp (CFLs) have undoubtedly revolutionized the lighting industry of the world. Based on conducted studies and experiments, in addition to their acceptable light and low power consumption -compared to incandescent bulbs and CFLs-, they have very low and in some cases zero environmental pollution and negative effects on human beings. Because of their longevity, in the case of using high-quality circuits and proper and consistent use of LEDs in conventional and intelligent buildings, there will be no need to replace the burnout lamps, for a long time (10 years). In this study which was conducted on 10-watt power LEDs with suitable heatsink/cooling, considerable amount of heat was generated during lighting after 5 minutes and 45 seconds. The temperature rose to above 99 degrees Celsius and this amount of heat can raise the water temperature to 60 degrees Celsius and more. Based on conducted experiments, this can provide the heat required for bathing, washing, radiators (in cold seasons) easily and only by imposing very low cost and it will be a big step in the optimization of energy consumption in the future. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=energy" title="energy">energy</a>, <a href="https://publications.waset.org/abstracts/search?q=light" title=" light"> light</a>, <a href="https://publications.waset.org/abstracts/search?q=water" title=" water"> water</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization%20of%20power%20LED" title=" optimization of power LED"> optimization of power LED</a> </p> <a href="https://publications.waset.org/abstracts/100174/efficient-use-of-power-light-emitting-diode-chips-in-the-main-lighting-system-and-in-generating-heat-in-intelligent-buildings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/100174.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">153</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">10</span> Time Effective Structural Frequency Response Testing with Oblique Impact</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khoo%20Shin%20Yee">Khoo Shin Yee</a>, <a href="https://publications.waset.org/abstracts/search?q=Lian%20Yee%20Cheng"> Lian Yee Cheng</a>, <a href="https://publications.waset.org/abstracts/search?q=Ong%20Zhi%20Chao"> Ong Zhi Chao</a>, <a href="https://publications.waset.org/abstracts/search?q=Zubaidah%20Ismail"> Zubaidah Ismail</a>, <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Noroozi"> Siamak Noroozi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Structural frequency response testing is accurate in identifying the dynamic characteristic of a machinery structure. In practical perspective, conventional structural frequency response testing such as experimental modal analysis with impulse technique (also known as “impulse testing”) has limitation especially on its long acquisition time. The high acquisition time is mainly due to the redundancy procedure where the engineer has to repeatedly perform the test in 3 directions, namely the axial-, horizontal- and vertical-axis, in order to comprehensively define the dynamic behavior of a 3D structure. This is unfavorable to numerous industries where the downtime cost is high. This study proposes to reduce the testing time by using oblique impact. Theoretically, a single oblique impact can induce significant vibration responses and vibration modes in all the 3 directions. Hence, the acquisition time with the implementation of the oblique impulse technique can be reduced by a factor of three (i.e. for a 3D dynamic system). This study initiates an experimental investigation of impulse testing with oblique excitation. A motor-driven test rig has been used for the testing purpose. Its dynamic characteristic has been identified using the impulse testing with the conventional normal impact and the proposed oblique impact respectively. The results show that the proposed oblique impulse testing is able to obtain all the desired natural frequencies in all 3 directions and thus providing a feasible solution for a fast and time effective way of conducting the impulse testing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=frequency%20response%20function" title="frequency response function">frequency response function</a>, <a href="https://publications.waset.org/abstracts/search?q=impact%20testing" title=" impact testing"> impact testing</a>, <a href="https://publications.waset.org/abstracts/search?q=modal%20analysis" title=" modal analysis"> modal analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=oblique%20angle" title=" oblique angle"> oblique angle</a>, <a href="https://publications.waset.org/abstracts/search?q=oblique%20impact" title=" oblique impact"> oblique impact</a> </p> <a href="https://publications.waset.org/abstracts/90683/time-effective-structural-frequency-response-testing-with-oblique-impact" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90683.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">501</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">9</span> A Review of Kinematics and Joint Load Forces in Total Knee Replacements Influencing Surgical Outcomes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Samira%20K.%20Al-Nasser">Samira K. Al-Nasser</a>, <a href="https://publications.waset.org/abstracts/search?q=Siamak%20Noroozi"> Siamak Noroozi</a>, <a href="https://publications.waset.org/abstracts/search?q=Roya%20Haratian"> Roya Haratian</a>, <a href="https://publications.waset.org/abstracts/search?q=Adrian%20Harvey"> Adrian Harvey</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A total knee replacement (TKR) is a surgical procedure necessary when there is severe pain and/or loss of function in the knee. Surgeons balance the load in the knee and the surrounding soft tissue by feeling the tension at different ranges of motion. This method can be unreliable and lead to early failure of the joint. The ideal kinematics and load distribution have been debated significantly based on previous biomechanical studies surrounding both TKRs and normal knees. Intraoperative sensors like VERASENSE and eLibra have provided a method for the quantification of the load indicating a balanced knee. A review of the literature written about intraoperative sensors and tension/stability of the knee was done. Studies currently debate the quantification of the load in medial and lateral compartments specifically. However, most research reported that following a TKR the medial compartment was loaded more heavily than the lateral compartment. In several cases, these results were shown to increase the success of the surgery because they mimic the normal kinematics of the knee. In conclusion, most research agrees that an intercompartmental load differential of between 10 and 20 pounds, where the medial load was higher than the lateral, and an absolute load of less than 70 pounds was ideal. However, further intraoperative sensor development could help improve the accuracy and understanding of the load distribution on the surgical outcomes in a TKR. A reduction in early revision surgeries for TKRs would provide an improved quality of life for patients and reduce the economic burden placed on both the National Health Service (NHS) and the patient. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=intraoperative%20sensors" title="intraoperative sensors">intraoperative sensors</a>, <a href="https://publications.waset.org/abstracts/search?q=joint%20load%20forces" title=" joint load forces"> joint load forces</a>, <a href="https://publications.waset.org/abstracts/search?q=kinematics" title=" kinematics"> kinematics</a>, <a href="https://publications.waset.org/abstracts/search?q=load%20balancing" title=" load balancing"> load balancing</a>, <a href="https://publications.waset.org/abstracts/search?q=and%20total%20knee%20replacement" title=" and total knee replacement"> and total knee replacement</a> </p> <a href="https://publications.waset.org/abstracts/147154/a-review-of-kinematics-and-joint-load-forces-in-total-knee-replacements-influencing-surgical-outcomes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/147154.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">136</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Siamak%20Yaghoubi&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Siamak%20Yaghoubi&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div 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