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ischaemia time</title> <meta name="description" content="Search results for: warm ischaemia time"> <meta name="keywords" content="warm ischaemia time"> <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 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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="warm ischaemia time"> <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> 18333</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: warm ischaemia time</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18333</span> Robotic Assisted vs Traditional Laparoscopic Partial Nephrectomy Peri-Operative Outcomes: A Comparative Single Surgeon Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gerard%20Bray">Gerard Bray</a>, <a href="https://publications.waset.org/abstracts/search?q=Derek%20Mao"> Derek Mao</a>, <a href="https://publications.waset.org/abstracts/search?q=Arya%20Bahadori"> Arya Bahadori</a>, <a href="https://publications.waset.org/abstracts/search?q=Sachinka%20Ranasinghe"> Sachinka Ranasinghe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The EAU currently recommends partial nephrectomy as the preferred management for localised cT1 renal tumours, irrespective of surgical approach. With the advent of robotic assisted partial nephrectomy, there is growing evidence that warm ischaemia time may be reduced compared to the traditional laparoscopic approach. There is still no clear differences between the two approaches with regards to other peri-operative and oncological outcomes. Current limitations in the field denote the lack of single surgeon series to compare the two approaches as other studies often include multiple operators of different experience levels. To the best of our knowledge, this study is the first single surgeon series comparing peri-operative outcomes of robotic assisted and laparoscopic PN. The current study aims to reduce intra-operator bias while maintaining an adequate sample size to assess the differences in outcomes between the two approaches. We retrospectively compared patient demographics, peri-operative outcomes, and renal function derangements of all partial nephrectomies undertaken by a single surgeon with experience in both laparoscopic and robotic surgery. Warm ischaemia time, length of stay, and acute renal function deterioration were all significantly reduced with robotic partial nephrectomy, compared to laparoscopic nephrectomy. This study highlights the benefits of robotic partial nephrectomy. Further prospective studies with larger sample sizes would be valuable additions to the current literature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=partial%20nephrectomy" title="partial nephrectomy">partial nephrectomy</a>, <a href="https://publications.waset.org/abstracts/search?q=robotic%20assisted%20partial%20nephrectomy" title=" robotic assisted partial nephrectomy"> robotic assisted partial nephrectomy</a>, <a href="https://publications.waset.org/abstracts/search?q=warm%20ischaemia%20time" title=" warm ischaemia time"> warm ischaemia time</a>, <a href="https://publications.waset.org/abstracts/search?q=peri-operative%20outcomes" title=" peri-operative outcomes"> peri-operative outcomes</a> </p> <a href="https://publications.waset.org/abstracts/145138/robotic-assisted-vs-traditional-laparoscopic-partial-nephrectomy-peri-operative-outcomes-a-comparative-single-surgeon-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/145138.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">141</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">18332</span> The Impact of Intestinal Ischaemia-Reperfusion Injury upon the Biological Function of Mesenteric Lymph</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Beth%20Taylor">Beth Taylor</a>, <a href="https://publications.waset.org/abstracts/search?q=Kojima%20Mituaki"> Kojima Mituaki</a>, <a href="https://publications.waset.org/abstracts/search?q=Atsushi%20Senda"> Atsushi Senda</a>, <a href="https://publications.waset.org/abstracts/search?q=Koji%20Morishita"> Koji Morishita</a>, <a href="https://publications.waset.org/abstracts/search?q=Yasuhiro%20Otomo"> Yasuhiro Otomo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Intestinal ischaemia-reperfusion injury drives systemic inflammation and organ failure following trauma/haemorrhagic shock (T/HS), through the release of pro-inflammatory mediators into the mesenteric lymph (ML). However, changes in the biological function of ML are not fully understood, and therefore, a specific model of intestinal ischaemia-reperfusion injury is required to obtain ML for the study of its biological function upon inflammatory cells. ML obtained from a model of intestinal ischaemia-reperfusion injury was used to assess biological function upon inflammatory cells and investigate changes in the biological function of individual ML components. An additional model was used to determine the effect of vagal nerve stimulation (VNS) upon biological function. Rat ML was obtained by mesenteric lymphatic duct cannulation before and after occlusion of the superior mesenteric artery (SMAO). ML was incubated with human polymorphonuclear neutrophils (PMNs), monocytes and lymphocytes, and the biological function of these cells was assessed. ML was then separated into supernatant, exosome and micro-vesicle components, and biological activity was compared in monocytes. A model with an additional VNS phase was developed, in which the right cervical vagal nerve was exposed and stimulated, and ML collected for comparison of biological function with the conventional model. The biological function of ML was altered by intestinal ischaemia-reperfusion injury, increasing PMN activation, monocyte activation, and lymphocyte apoptosis. Increased monocyte activation was only induced by the exosome component of ML, with no significant changes induced by the supernatant or micro-vesicle components. VNS partially attenuated monocyte activation, but no attenuation of PMN activation was observed. Intestinal ischaemia-reperfusion injury induces changes in the biological function of ML upon both innate and adaptive inflammatory cells, supporting the role of intestinal ischaemia-reperfusion injury in driving systemic inflammation following T/HS. The exosome component of ML appears to be critical to the transport of pro-inflammatory mediators in ML. VNS partially attenuates changes in innate inflammatory cell biological activity observed, presenting possibilities for future novel treatment development in multiple organ failure patients. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=exosomes" title="exosomes">exosomes</a>, <a href="https://publications.waset.org/abstracts/search?q=inflammation" title=" inflammation"> inflammation</a>, <a href="https://publications.waset.org/abstracts/search?q=intestinal%20ischaemia" title=" intestinal ischaemia"> intestinal ischaemia</a>, <a href="https://publications.waset.org/abstracts/search?q=mesenteric%20lymph" title=" mesenteric lymph"> mesenteric lymph</a>, <a href="https://publications.waset.org/abstracts/search?q=vagal%20stimulation" title=" vagal stimulation"> vagal stimulation</a> </p> <a href="https://publications.waset.org/abstracts/111415/the-impact-of-intestinal-ischaemia-reperfusion-injury-upon-the-biological-function-of-mesenteric-lymph" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/111415.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">134</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18331</span> Tourism Potentials of Ikogosi Warm Spring in Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.I.%20Adeyemo">A.I. Adeyemo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ikogosi warm spring results from a complex mechanical and chemical forces that generates internal heat in the rocks forming a warm and cold water at the same geographical location at the same time. From time immemorial, the local community had thought, it to be the work of a deity, and they were worshipping the spring. This complex phenomenon has been a source of tourist attraction to both local and international tourists over the years. 450 copies of a structured questionnaire were given out, and a total of 500 respondents were interviewed. The result showed that ikogosi warm spring impacts the community positively by providing employment to the teeming youths, and it provides income to traders. The result shows that 66% of the respondents confirmed that it increased their income and that transportation business increased more than 73%.the level of enlightenment and socialization increased greatly in the community. However, it also impacted the community negatively as it increased crime rates such as stealing, kidnapping, prostitution, and unwanted pregnancy among the secondary school girls and the other teenagers. Generally, 50% of the respondents reported that tourism in the warm spring results in insecurity in the community. IT also increased environmental problems such as noise and waste pollutions; the continuous movement on the land results in soil compartment leading to erosion, and leaching, which also results in loss of soil fertility. It was concluded that if the potentials of the spring are fully tapped, it will be a good avenue for income generation to the country. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=community" title="community">community</a>, <a href="https://publications.waset.org/abstracts/search?q=Ikogosi" title=" Ikogosi"> Ikogosi</a>, <a href="https://publications.waset.org/abstracts/search?q=revenue" title=" revenue"> revenue</a>, <a href="https://publications.waset.org/abstracts/search?q=warm%20spring" title=" warm spring"> warm spring</a> </p> <a href="https://publications.waset.org/abstracts/118013/tourism-potentials-of-ikogosi-warm-spring-in-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/118013.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">158</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">18330</span> Raman Spectroscopic of Cardioprotective Mechanism During the Metabolic Inhibition of Heart Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Almohammedi">A. Almohammedi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20J.%20Hudson"> A. J. Hudson</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20M.%20Storey"> N. M. Storey</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Following ischaemia/reperfusion injury, as in a myocardial infraction, cardiac myocytes undergo oxidative stress which leads to several potential outcomes including; necrotic or apoptotic cell death or dysregulated calcium homeostasis or disruption of the electron transport chain. Several studies have shown that nitric oxide donors protect cardiomyocytes against ischemia and reperfusion. However until present, the mechanism of cardioprotective effect of nitric oxide donor in isolated ventricular cardiomyocytes is not fully understood and has not been investigated before using Raman spectroscopy. For these reasons, the aim of this study was to develop a novel technique, pre-resonance Raman spectroscopy, to investigate the mechanism of cardioprotective effect of nitric oxide donor in isolated ventricular cardiomyocytes exposed to metabolic inhibition and re-energisation. The results demonstrated the first time that Raman microspectroscopy technique has the capability to monitor the metabolic inhibition of cardiomyocytes and to monitor the effectiveness of cardioprotection by nitric oxide donor prior to metabolic inhibition of cardiomyocytes. Metabolic inhibition and reenergisation were used in this study to mimic the low and high oxygen levels experienced by cells during ischaemic and reperfusion treatments. A laser wavelength of 488 nm used in this study has been found to provide the most sensitive means of observe the cellular mechanisms of myoglobin during nitric oxide donor preconditioning, metabolic inhibition and re-energisation and did not cause any damage to the cells. The data also highlight the considerably different cellular responses to metabolic inhibition to ischaemia. Moreover, the data has been shown the relationship between the release of myoglobin and chemical ischemia where that the release of myoglobin from the cell only occurred if a cell did not recover contractility. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ex%20vivo%20biospectroscopy" title="ex vivo biospectroscopy">ex vivo biospectroscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=Raman%20spectroscopy" title=" Raman spectroscopy"> Raman spectroscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=biophotonics" title=" biophotonics"> biophotonics</a>, <a href="https://publications.waset.org/abstracts/search?q=cardiomyocytes" title=" cardiomyocytes"> cardiomyocytes</a>, <a href="https://publications.waset.org/abstracts/search?q=ischaemia%20%2F%20reperfusion%20injury" title=" ischaemia / reperfusion injury"> ischaemia / reperfusion injury</a>, <a href="https://publications.waset.org/abstracts/search?q=cardioprotection" title=" cardioprotection"> cardioprotection</a>, <a href="https://publications.waset.org/abstracts/search?q=nitric%20oxide%20donor" title=" nitric oxide donor"> nitric oxide donor</a> </p> <a href="https://publications.waset.org/abstracts/29502/raman-spectroscopic-of-cardioprotective-mechanism-during-the-metabolic-inhibition-of-heart-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29502.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">352</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18329</span> The Hydro-Geology and Drinking Water Quality of Ikogosi Warm Spring in South West Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ikudayisi%20Akinola">Ikudayisi Akinola</a>, <a href="https://publications.waset.org/abstracts/search?q=Adeyemo%20Folasade"> Adeyemo Folasade</a>, <a href="https://publications.waset.org/abstracts/search?q=Adeyemo%20Josiah"> Adeyemo Josiah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study focuses on the hydro-geology and chemistry of Ikogosi Warm Spring in South West Nigeria. Ikogosi warm spring is a global tourist attraction because it has both warm and cold spring sources. Water samples from the cold spring, warm spring and the meeting point were collected, analyzed and the result shows close similarity in temperature, hydrogen iron concentration (pH), alkalinity, hardness, Calcium, Magnesium, Sodium, Iron, total dissolved solid and heavy metals. The measured parameters in the water samples are within World Health Organisation standards for fresh water. The study of the geology of the warm spring reveals that the study area is underlain by a group of slightly migmatised to non-migmatised paraschists and meta-igneous rocks. The concentration levels of selected heavy metals, (Copper, Cadmium, Zinc, Arsenic and Cromium) were determined in the water (ppm) samples. Chromium had the highest concentration value of 1.52ppm (an average of 49.67%) and Cadmium had the lowest concentration with value of 0.15ppm (an average of 4.89%). Comparison of these results showed that, their mean levels are within the standard values obtained in Nigeria. It can be concluded that both warm and spring water are safe for drinking. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cold%20spring" title="cold spring">cold spring</a>, <a href="https://publications.waset.org/abstracts/search?q=Ikogosi" title=" Ikogosi"> Ikogosi</a>, <a href="https://publications.waset.org/abstracts/search?q=melting%20point" title=" melting point"> melting point</a>, <a href="https://publications.waset.org/abstracts/search?q=warm%20spring" title=" warm spring"> warm spring</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20samples" title=" water samples"> water samples</a> </p> <a href="https://publications.waset.org/abstracts/27501/the-hydro-geology-and-drinking-water-quality-of-ikogosi-warm-spring-in-south-west-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27501.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">545</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">18328</span> A Longitudinal Study of Academic Achievement: Parental Warm Support and Moderating Role of Teacher’s Emotional Support and Mediating Role of Self Control on Academic Achievement</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Maaza%20Saeed">Maaza Saeed</a>, <a href="https://publications.waset.org/abstracts/search?q=Caina%20%20Li"> Caina Li</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The current 2-wave longitudinal study attempts to illuminate the well-established association between parental warm support and academic achievement through the mediating role of self-control while taking into account the moderating role of teacher emotional support. The present research has assessed 2569 Chinese students (aged 10-18 years, M = 13.27, SD = 0.67). They were recruited from the three public middle schools in Xi’an, a middle-sized city in the central part of China. Meditation analysis revealed that self-control mediated the relationship between parental warm support and academic achievement. Additionally, it was found the direct effect of parental warm support was not significant after controlling for the age and gender. Furthermore, moderation analysis revealed high parental warm support and higher teacher emotional support was related to increased self-control compared to lower teacher emotion support. The findings highlighted the importance of parental warm support, teacher emotional support, and self-control on academic achievement. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=self%20control" title="self control">self control</a>, <a href="https://publications.waset.org/abstracts/search?q=academic%20achievement" title=" academic achievement"> academic achievement</a>, <a href="https://publications.waset.org/abstracts/search?q=teacher%20emotional%20support%2Fconflict" title=" teacher emotional support/conflict"> teacher emotional support/conflict</a>, <a href="https://publications.waset.org/abstracts/search?q=adolescent" title=" adolescent"> adolescent</a> </p> <a href="https://publications.waset.org/abstracts/105616/a-longitudinal-study-of-academic-achievement-parental-warm-support-and-moderating-role-of-teachers-emotional-support-and-mediating-role-of-self-control-on-academic-achievement" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105616.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">273</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">18327</span> Utility of CT Perfusion Imaging for Diagnosis and Management of Delayed Cerebral Ischaemia Following Subarachnoid Haemorrhage</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdalla%20Mansour">Abdalla Mansour</a>, <a href="https://publications.waset.org/abstracts/search?q=Dan%20Brown"> Dan Brown</a>, <a href="https://publications.waset.org/abstracts/search?q=Adel%20Helmy"> Adel Helmy</a>, <a href="https://publications.waset.org/abstracts/search?q=Rikin%20Trivedi"> Rikin Trivedi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mathew%20Guilfoyle"> Mathew Guilfoyle</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Diagnosing delayed cerebral ischaemia (DCI) following aneurysmal subarachnoid haemorrhage (SAH) can be challenging, particularly in poor-grade patients. Objectives: This study sought to assess the value of routine CTP in identifying (or excluding) DCI and in guiding management. Methods: Eight-year retrospective neuroimaging study at a large UK neurosurgical centre. Subjects included a random sample of adult patients with confirmed aneurysmal SAH that had a CTP scan during their inpatient stay, over a 8-year period (May 2014 - May 2022). Data collected through electronic patient record and PACS. Variables included age, WFNS scale, aneurysm site, treatment, the timing of CTP, radiologist report, and DCI management. Results: Over eight years, 916 patients were treated for aneurysmal SAH; this study focused on 466 patients that were randomly selected. Of this sample, 181 (38.84%) had one or more CTP scans following brain aneurysm treatment (Total 318). The first CTP scan in each patient was performed at 1-20 days following ictus (median 4 days). There was radiological evidence of DCI in 83, and no reversible ischaemia was found in 80. Findings were equivocal in the remaining 18. Of the 103 patients treated with clipping, 49 had DCI radiological evidence, in comparison to 31 of 69 patients treated with endovascular embolization. The remaining 9 patients are either unsecured aneurysms or non-aneurysmal SAH. Of the patients with radiological evidence of DCI, 65 had a treatment change following the CTP directed at improving cerebral perfusion. In contrast, treatment was not changed for (61) patients without radiological evidence of DCI. Conclusion: CTP is a useful adjunct to clinical assessment in the diagnosis of DCI and is helpful in identifying patients that may benefit from intensive therapy and those in whom it is unlikely to be effective. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=SAH" title="SAH">SAH</a>, <a href="https://publications.waset.org/abstracts/search?q=vasospasm" title=" vasospasm"> vasospasm</a>, <a href="https://publications.waset.org/abstracts/search?q=aneurysm" title=" aneurysm"> aneurysm</a>, <a href="https://publications.waset.org/abstracts/search?q=delayed%20cerebral%20ischemia" title=" delayed cerebral ischemia"> delayed cerebral ischemia</a> </p> <a href="https://publications.waset.org/abstracts/152535/utility-of-ct-perfusion-imaging-for-diagnosis-and-management-of-delayed-cerebral-ischaemia-following-subarachnoid-haemorrhage" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152535.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">68</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">18326</span> Design, Fabrication, and Experimental Validation of a Warm Bulge Test System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emine%20Feyza%20%C5%9E%C3%BCk%C3%BCr">Emine Feyza Şükür</a>, <a href="https://publications.waset.org/abstracts/search?q=Mevl%C3%BCt%20T%C3%BCrk%C3%B6z"> Mevlüt Türköz</a>, <a href="https://publications.waset.org/abstracts/search?q=Murat%20Dilme%C3%A7"> Murat Dilmeç</a>, <a href="https://publications.waset.org/abstracts/search?q=H%C3%BCseyin%20Sel%C3%A7uk%20Halkac%C4%B1"> Hüseyin Selçuk Halkacı</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, a warm bulge test system was designed, built and experimentally validated to perform warm bulge tests with all necessary systems. In addition, performance of each sub-system is validated through repeated production and/or test runs as well as through part quality measurements. Validation and performance tests were performed to characterize the repeatability of the system. As a result of these tests, the desired temperature distribution on the sheet metal was obtained by the heating systems and the good repeatability of the bulge tests was obtained. Consequently, this study is expected to provide other researchers and manufacturer with a set of design and process guidelines to develop similar systems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=design" title="design">design</a>, <a href="https://publications.waset.org/abstracts/search?q=test%20unit" title=" test unit"> test unit</a>, <a href="https://publications.waset.org/abstracts/search?q=warm%20bulge%20test%20unit" title=" warm bulge test unit"> warm bulge test unit</a>, <a href="https://publications.waset.org/abstracts/search?q=validation%20test" title=" validation test"> validation test</a> </p> <a href="https://publications.waset.org/abstracts/37140/design-fabrication-and-experimental-validation-of-a-warm-bulge-test-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37140.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">490</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">18325</span> Effect of Using Crumb Rubber with Warm-Mix-Asphalt Additive in Laboratory and Field Aging</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mustafa%20Akpolat">Mustafa Akpolat</a>, <a href="https://publications.waset.org/abstracts/search?q=Baha%20Vural%20K%C3%B6k"> Baha Vural Kök</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Using a waste material such as crumb rubber (CR) obtained by waste tires has become an important issue in respect to sustainability. However, the CR modified mixture also requires high manufacture temperature as a polymer modified mixture. For this reason in this study, it is intended to produce a CR modified mixture with warm mix asphalt additives in the same mixture. Asphalt mixtures produced by pure, 10%CR, 10%CR+3% Sasobit and 10%CR+0.7% Evotherm were subjected to aging procedure in the laboratory and the field. The indirect tensile repeated tests were applied to aged and original specimens. It was concluded that the fatigue life of the mixtures increased significantly with the increase of aging time. CR+Sasobit modified mixture aged at the both field and laboratory gave the highest load cycle among the mixtures. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=crumb%20rubber" title="crumb rubber">crumb rubber</a>, <a href="https://publications.waset.org/abstracts/search?q=warm%20mix%20asphalt" title=" warm mix asphalt"> warm mix asphalt</a>, <a href="https://publications.waset.org/abstracts/search?q=aging" title=" aging"> aging</a>, <a href="https://publications.waset.org/abstracts/search?q=fatigue" title=" fatigue"> fatigue</a> </p> <a href="https://publications.waset.org/abstracts/79016/effect-of-using-crumb-rubber-with-warm-mix-asphalt-additive-in-laboratory-and-field-aging" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/79016.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">402</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">18324</span> Vaporization of a Single N-Pentane Liquid Drop in a Flowing Immiscible Liquid Media</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hameed%20B.%20Mahood">Hameed B. Mahood</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Sh.%20Baqir"> Ali Sh. Baqir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Vaporization of a single n-pentane drop in a direct contact with another flowing immiscible liquid (warm water) has been experimentally investigated. The experiments were carried out utilising a cylindrical Perspex tube of diameter 10 cm and height and 150 cm. Saturated liquid n-pentane and warm water at 45oC were used as the dispersed and continuous phases, respectively. Photron FASTCAM SA 1.1high speed camera (75,000f/s) with software V. 321 was implemented during the experiments. Five different continuous phase flow rates (warm water) (10, 20, 30, 40, and 46 L⁄h) were used in the study. The results indicated that the increase of the continuous phase (warm water) flow rate results in increasing of the drop/bubble diameter. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=drop%20evaporation" title="drop evaporation">drop evaporation</a>, <a href="https://publications.waset.org/abstracts/search?q=direct%20contact%20heat%20transfer" title=" direct contact heat transfer"> direct contact heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=drop%2Fbubble%20growth" title=" drop/bubble growth"> drop/bubble growth</a>, <a href="https://publications.waset.org/abstracts/search?q=experimental%20technique" title=" experimental technique"> experimental technique</a> </p> <a href="https://publications.waset.org/abstracts/56753/vaporization-of-a-single-n-pentane-liquid-drop-in-a-flowing-immiscible-liquid-media" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56753.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">353</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18323</span> Seasonal Short-Term Effect of Air Pollution on Cardiovascular Mortality in Belgium</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Natalia%20Bustos%20Sierra">Natalia Bustos Sierra</a>, <a href="https://publications.waset.org/abstracts/search?q=Katrien%20Tersago"> Katrien Tersago</a> </p> <p class="card-text"><strong>Abstract:</strong></p> It is currently proven that both extremes of temperature are associated with increased mortality and that air pollution is associated with temperature. This relationship is complex, and in countries with important seasonal variations in weather such as Belgium, some effects can appear as non-significant when the analysis is done over the entire year. We, therefore, analyzed the effect of short-term outdoor air pollution exposure on cardiovascular mortality during the warmer and colder months separately. We used daily cardiovascular deaths from acute cardiovascular diagnostics according to the International Classification of Diseases, 10th Revision (ICD-10: I20-I24, I44-I49, I50, I60-I66) during the period 2008-2013. The environmental data were population-weighted concentrations of particulates with an aerodynamic diameter less than 10 µm (PM₁₀) and less than 2.5 µm (PM₂.₅) (daily average), nitrogen dioxide (NO₂) (daily maximum of the hourly average) and ozone (O₃) (daily maximum of the 8-hour running mean). A Generalized linear model was applied adjusting for the confounding effect of season, temperature, dew point temperature, the day of the week, public holidays and the incidence of influenza-like illness (ILI) per 100,000 inhabitants. The relative risks (RR) were calculated for an increase of one interquartile range (IQR) of the air pollutant (μg/m³). These were presented for the four hottest months (June, July, August, September) and coldest months (November, December, January, February) in Belgium. We applied both individual lag model and unconstrained distributed lag model methods. The cumulative effect of a four-day exposure (day of exposure and three consecutive days) was calculated from the unconstrained distributed lag model. The IQR for PM₁₀, PM₂.₅, NO₂, and O₃ were respectively 8.2, 6.9, 12.9 and 25.5 µg/m³ during warm months and 18.8, 17.6, 18.4 and 27.8 µg/m³ during cold months. The association with CV mortality was statistically significant for the four pollutants during warm months and only for NO₂ during cold months. During the warm months, the cumulative effect of an IQR increase of ozone for the age groups 25-64, 65-84 and 85+ was 1.066 (95%CI: 1.002-1.135), 1.041 (1.008-1.075) and 1.036 (1.013-1.058) respectively. The cumulative effect of an IQR increase of NO₂ for the age group 65-84 was 1.066 (1.020-1.114) during warm months and 1.096 (1.030-1.166) during cold months. The cumulative effect of an IQR increase of PM₁₀ during warm months reached 1.046 (1.011-1.082) and 1.038 (1.015-1.063) for the age groups 65-84 and 85+ respectively. Similar results were observed for PM₂.₅. The short-term effect of air pollution on cardiovascular mortality is greater during warm months for lower pollutant concentrations compared to cold months. Spending more time outside during warm months increases population exposure to air pollution and can, therefore, be a confounding factor for this association. Age can also affect the length of time spent outdoors and the type of physical activity exercised. This study supports the deleterious effect of air pollution on cardiovascular mortality (CV) which varies according to season and age groups in Belgium. Public health measures should, therefore, be adapted to seasonality. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=air%20pollution" title="air pollution">air pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=cardiovascular" title=" cardiovascular"> cardiovascular</a>, <a href="https://publications.waset.org/abstracts/search?q=mortality" title=" mortality"> mortality</a>, <a href="https://publications.waset.org/abstracts/search?q=season" title=" season"> season</a> </p> <a href="https://publications.waset.org/abstracts/90724/seasonal-short-term-effect-of-air-pollution-on-cardiovascular-mortality-in-belgium" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90724.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">165</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">18322</span> Comparative Effect of Self-Myofascial Release as a Warm-Up Exercise on Functional Fitness of Young Adults</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gopal%20Chandra%20Saha">Gopal Chandra Saha</a>, <a href="https://publications.waset.org/abstracts/search?q=Sumanta%20Daw"> Sumanta Daw</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Warm-up is an essential component for optimizing performance in various sports before a physical fitness training session. This study investigated the immediate comparative effect of Self-Myofascial Release through vibration rolling (VR), non-vibration rolling (NVR), and static stretching as a part of a warm-up treatment on the functional fitness of young adults. Functional fitness is a classification of training that prepares the body for real-life movements and activities. For the present study 20male physical education students were selected as subjects. The age of the subjects was ranged from 20-25 years. The functional fitness variables undertaken in the present study were flexibility, muscle strength, agility, static and dynamic balance of the lower extremity. Each of the three warm-up protocol was administered on consecutive days, i.e. 24 hr time gap and all tests were administered in the morning. The mean and SD were used as descriptive statistics. The significance of statistical differences among the groups was measured by applying ‘F’-test, and to find out the exact location of difference, Post Hoc Test (Least Significant Difference) was applied. It was found from the study that only flexibility showed significant difference among three types of warm-up exercise. The observed result depicted that VR has more impact on myofascial release in flexibility in comparison with NVR and stretching as a part of warm-up exercise as ‘p’ value was less than 0.05. In the present study, within the three means of warm-up exercises, vibration roller showed better mean difference in terms of NVR, and static stretching exercise on functional fitness of young physical education practitioners, although the results were found insignificant in case of muscle strength, agility, static and dynamic balance of the lower extremity. These findings suggest that sports professionals and coaches may take VR into account for designing more efficient and effective pre-performance routine for long term to improve exercise performances. VR has high potential to interpret into an on-field practical application means. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=self-myofascial%20release" title="self-myofascial release">self-myofascial release</a>, <a href="https://publications.waset.org/abstracts/search?q=functional%20fitness" title=" functional fitness"> functional fitness</a>, <a href="https://publications.waset.org/abstracts/search?q=foam%20roller" title=" foam roller"> foam roller</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20education" title=" physical education"> physical education</a> </p> <a href="https://publications.waset.org/abstracts/109776/comparative-effect-of-self-myofascial-release-as-a-warm-up-exercise-on-functional-fitness-of-young-adults" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/109776.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">133</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">18321</span> A Design Research Methodology for Light and Stretchable Electrical Thermal Warm-Up Sportswear to Enhance the Performance of Athletes against Harsh Environment </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chenxiao%20Yang">Chenxiao Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Li%20Li"> Li Li</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this decade, the sportswear market rapidly expanded while numerous sports brands are conducting fierce competitions to hold their market shares and trying to act as a leader in professional competition sports areas to set the trends. Thus, various advancing sports equipment is being deeply explored to improving athletes’ performance in fierce competitions. Although there is plenty protective equipment such as cuff, running legging, etc., on the market, there is still blank in the field of sportswear during prerace warm-up this important time gap, especially for those competitions host in cold environment. Because there is always time gaps between warm-up and race due to event logistics or unexpected weather factors. Athletes will be exposed to chilly condition for an unpredictable long period of time. As a consequence, the effects of warm-up will be negated, and the competition performance will be degraded. However, reviewing the current market, there is none effective sports equipment provided to help athletes against this harsh environment or the rare existing products are so blocky or heavy to restrict the actions. An ideal thermal-protective sportswear should be light, flexible, comfort and aesthetic at the same time. Therefore, this design research adopted the textile circular knitting methodology to integrate soft silver-coated conductive yarns (ab. SCCYs), elastic nylon yarn and polyester yarn to develop the proposed electrical, thermal sportswear, with the strengths aforementioned. Meanwhile, the relationship between heating performance, stretch load, and energy consumption were investigated. Further, a simulation model was established to ensure providing sufficient warm and flexibility at lower energy cost and with an optimized production, parameter determined. The proposed circular knitting technology and simulation model can be directly applied to instruct prototype developments to cater different target consumers’ needs and ensure prototypes’’ safety. On the other hand, high R&D investment and time consumption can be saved. Further, two prototypes: a kneecap and an elbow guard, were developed to facilitate the transformation of research technology into an industrial application and to give a hint on the blur future blueprint. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cold%20environment" title="cold environment">cold environment</a>, <a href="https://publications.waset.org/abstracts/search?q=silver-coated%20conductive%20yarn" title=" silver-coated conductive yarn"> silver-coated conductive yarn</a>, <a href="https://publications.waset.org/abstracts/search?q=electrical%20thermal%20textile" title=" electrical thermal textile"> electrical thermal textile</a>, <a href="https://publications.waset.org/abstracts/search?q=stretchable" title=" stretchable"> stretchable</a> </p> <a href="https://publications.waset.org/abstracts/64412/a-design-research-methodology-for-light-and-stretchable-electrical-thermal-warm-up-sportswear-to-enhance-the-performance-of-athletes-against-harsh-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/64412.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">18320</span> Constant-Roll Warm Inflation within Rastall Gravity</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rabia%20Saleem">Rabia Saleem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research has a recently proposed strategy to find the exact inflationary solution of the Friedman equations in the context of the Rastall theory of gravity (RTG), known as constant-roll warm inflation, including dissipation effects. We establish the model to evaluate the effective potential of inflation and entropy. We develop the inflationary observable like scalar-tensor power spectra, scalar-tensor spectral indices, tensor-to-scalar ratio, and running of spectral-index. The theory parameter $\lambda$ is constrained to observe the compatibility of our model with Planck 2013, Planck TT, TE, EE+lowP (2015), and Planck 2018 bounds. The results are feasible and interesting up to the 2$\sigma$ confidence level. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=modified%20gravity" title="modified gravity">modified gravity</a>, <a href="https://publications.waset.org/abstracts/search?q=warm%20inflation" title=" warm inflation"> warm inflation</a>, <a href="https://publications.waset.org/abstracts/search?q=constant-roll%20limit" title=" constant-roll limit"> constant-roll limit</a>, <a href="https://publications.waset.org/abstracts/search?q=dissipation" title=" dissipation"> dissipation</a> </p> <a href="https://publications.waset.org/abstracts/156363/constant-roll-warm-inflation-within-rastall-gravity" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156363.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">99</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">18319</span> A Mathematical Model for Reliability Redundancy Optimization Problem of K-Out-Of-N: G System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gak-Gyu%20Kim">Gak-Gyu Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Won%20Il%20Jung"> Won Il Jung</a> </p> <p class="card-text"><strong>Abstract:</strong></p> According to a remarkable development of science and technology, function and role of the system of engineering fields has recently been diversified. The system has become increasingly more complex and precise, and thus, system designers intended to maximize reliability concentrate more effort at the design stage. This study deals with the reliability redundancy optimization problem (RROP) for k-out-of-n: G system configuration with cold standby and warm standby components. This paper further intends to present the optimal mathematical model through which the following three elements of (i) multiple components choices, (ii) redundant components quantity and (iii) the choice of redundancy strategies may be combined in order to maximize the reliability of the system. Therefore, we focus on the following three issues. First, we consider RROP that there exists warm standby state as well as cold standby state of the component. Second, as eliminating an approximation approach of the previous RROP studies, we construct a precise model for system reliability. Third, given transition time when the state of components changes, we present not simply a workable solution but the advanced method. For the wide applicability of RROPs, moreover, we use absorbing continuous time Markov chain and matrix analytic methods in the suggested mathematical model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=RROP" title="RROP">RROP</a>, <a href="https://publications.waset.org/abstracts/search?q=matrix%20analytic%20methods" title=" matrix analytic methods"> matrix analytic methods</a>, <a href="https://publications.waset.org/abstracts/search?q=k-out-of-n%3A%20G%20system" title=" k-out-of-n: G system"> k-out-of-n: G system</a>, <a href="https://publications.waset.org/abstracts/search?q=MTTF" title=" MTTF"> MTTF</a>, <a href="https://publications.waset.org/abstracts/search?q=absorbing%20continuous%20time%20Markov%20Chain" title=" absorbing continuous time Markov Chain"> absorbing continuous time Markov Chain</a> </p> <a href="https://publications.waset.org/abstracts/66196/a-mathematical-model-for-reliability-redundancy-optimization-problem-of-k-out-of-n-g-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66196.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">254</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">18318</span> The Impact of the “Cold Ambient Color = Healthy” Intuition on Consumer Food Choice</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yining%20Yu">Yining Yu</a>, <a href="https://publications.waset.org/abstracts/search?q=Bingjie%20Li"> Bingjie Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Miaolei%20Jia"> Miaolei Jia</a>, <a href="https://publications.waset.org/abstracts/search?q=Lei%20Wang"> Lei Wang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ambient color temperature is one of the most ubiquitous factors in retailing. However, there is limited research regarding the effect of cold versus warm ambient color on consumers’ food consumption. This research investigates an unexplored lay belief named the “cold ambient color = healthy” intuition and its impact on food choice. We demonstrate that consumers have built the “cold ambient color = healthy” intuition, such that they infer that a restaurant with a cold-colored ambiance is more likely to sell healthy food than a warm-colored restaurant. This deep-seated intuition also guides consumers’ food choices. We find that using a cold (vs. warm) ambient color increases the choice of healthy food, which offers insights into healthy diet promotion for retailers and policymakers. Theoretically, our work contributes to the literature on color psychology, sensory marketing, and food consumption. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ambient%20color%20temperature" title="ambient color temperature">ambient color temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=cold%20ambient%20color" title=" cold ambient color"> cold ambient color</a>, <a href="https://publications.waset.org/abstracts/search?q=food%20choice" title=" food choice"> food choice</a>, <a href="https://publications.waset.org/abstracts/search?q=consumer%20wellbeing" title=" consumer wellbeing"> consumer wellbeing</a> </p> <a href="https://publications.waset.org/abstracts/148864/the-impact-of-the-cold-ambient-color-healthy-intuition-on-consumer-food-choice" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148864.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">142</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">18317</span> Investigating the Potential for Introduction of Warm Mix Asphalt in Kuwait Using the Volcanic Ash</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20Al-Baghli">H. Al-Baghli</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Al-Asfour"> F. Al-Asfour</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The current applied asphalt technology for Kuwait roads pavement infrastructure is the hot mix asphalt (HMA) pavement, including both pen grade and polymer modified bitumen (PMBs), that is produced and compacted at high temperature levels ranging from 150 to 180 °C. There are no current specifications for warm and cold mix asphalts in Kuwait’s Ministry of Public Works (MPW) asphalt standard and specifications. The process of the conventional HMA is energy intensive and directly responsible for the emission of greenhouse gases and other environmental hazards into the atmosphere leading to significant environmental impacts and raising health risk to labors at site. Warm mix asphalt (WMA) technology, a sustainable alternative preferred in multiple countries, has many environmental advantages because it requires lower production temperatures than HMA by 20 to 40 °C. The reduction of temperatures achieved by WMA originates from multiple technologies including foaming and chemical or organic additives that aim to reduce bitumen and improve mix workability. This paper presents a literature review of WMA technologies and techniques followed by an experimental study aiming to compare the results of produced WMA samples, using a water containing additive (foaming process), at different compaction temperatures with the HMA control volumetric properties mix designed in accordance to the new MPW’s specifications and guidelines. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=warm-mix%20asphalt" title="warm-mix asphalt">warm-mix asphalt</a>, <a href="https://publications.waset.org/abstracts/search?q=water-bearing%20additives" title=" water-bearing additives"> water-bearing additives</a>, <a href="https://publications.waset.org/abstracts/search?q=foaming-based%20process" title=" foaming-based process"> foaming-based process</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20additives" title=" chemical additives"> chemical additives</a>, <a href="https://publications.waset.org/abstracts/search?q=organic%20additives" title=" organic additives"> organic additives</a> </p> <a href="https://publications.waset.org/abstracts/132050/investigating-the-potential-for-introduction-of-warm-mix-asphalt-in-kuwait-using-the-volcanic-ash" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/132050.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">18316</span> Systems Approach on Thermal Analysis of an Automatic Transmission</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sinsze%20Koo">Sinsze Koo</a>, <a href="https://publications.waset.org/abstracts/search?q=Benjin%20Luo"> Benjin Luo</a>, <a href="https://publications.waset.org/abstracts/search?q=Matthew%20Henry"> Matthew Henry</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In order to increase the performance of an automatic transmission, the automatic transmission fluid is required to be warm up to an optimal operating temperature. In a conventional vehicle, cold starts result in friction loss occurring in the gear box and engine. The stop and go nature of city driving dramatically affect the warm-up of engine oil and automatic transmission fluid and delay the time frame needed to reach an optimal operating temperature. This temperature phenomenon impacts both engine and transmission performance but also increases fuel consumption and CO2 emission. The aim of this study is to develop know-how of the thermal behavior in order to identify thermal impacts and functional principles in automatic transmissions. Thermal behavior was studied using models and simulations, developed using GT-Suit, on a one-dimensional thermal and flow transport. A power train of a conventional vehicle was modeled in order to emphasis the thermal phenomena occurring in the various components and how they impact the automatic transmission performance. The simulation demonstrates the thermal model of a transmission fluid cooling system and its component parts in warm-up after a cold start. The result of these analyses will support the future designs of transmission systems and components in an attempt to obtain better fuel efficiency and transmission performance. Therefore, these thermal analyses could possibly identify ways that improve existing thermal management techniques with prioritization on fuel efficiency. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=thermal%20management" title="thermal management">thermal management</a>, <a href="https://publications.waset.org/abstracts/search?q=automatic%20transmission" title=" automatic transmission"> automatic transmission</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid" title=" hybrid"> hybrid</a>, <a href="https://publications.waset.org/abstracts/search?q=and%20systematic%20approach" title=" and systematic approach"> and systematic approach</a> </p> <a href="https://publications.waset.org/abstracts/26757/systems-approach-on-thermal-analysis-of-an-automatic-transmission" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26757.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">377</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">18315</span> The Comparison between Modelled and Measured Nitrogen Dioxide Concentrations in Cold and Warm Seasons in Kaunas</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Mi%C5%A1kinyt%C4%97">A. Miškinytė</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20D%C4%97del%C4%97"> A. Dėdelė</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Road traffic is one of the main sources of air pollution in urban areas associated with adverse effects on human health and environment. Nitrogen dioxide (NO2) is considered as traffic-related air pollutant, which concentrations tend to be higher near highways, along busy roads and in city centres and exceedances are mainly observed in air quality monitoring stations located close to traffic. Atmospheric dispersion models can be used to examine emissions from many various sources and to predict the concentration of pollutants emitted from these sources into the atmosphere. The study aim was to compare modelled concentrations of nitrogen dioxide using ADMS-Urban dispersion model with air quality monitoring network in cold and warm seasons in Kaunas city. Modelled average seasonal concentrations of nitrogen dioxide for 2011 year have been verified with automatic air quality monitoring data from two stations in the city. Traffic station is located near high traffic street in industrial district and background station far away from the main sources of nitrogen dioxide pollution. The modelling results showed that the highest nitrogen dioxide concentration was modelled and measured in station located near intensive traffic street, both in cold and warm seasons. Modelled and measured nitrogen dioxide concentration was respectively 25.7 and 25.2 µg/m3 in cold season and 15.5 and 17.7 µg/m3 in warm season. While the lowest modelled and measured NO2 concentration was determined in background monitoring station, respectively 12.2 and 13.3 µg/m3 in cold season and 6.1 and 7.6 µg/m3 in warm season. The difference between monitoring station located near high traffic street and background monitoring station showed that better agreement between modelled and measured NO2 concentration was observed at traffic monitoring station. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=air%20pollution" title="air pollution">air pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20dioxide" title=" nitrogen dioxide"> nitrogen dioxide</a>, <a href="https://publications.waset.org/abstracts/search?q=modelling" title=" modelling"> modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=ADMS-Urban%20model" title=" ADMS-Urban model"> ADMS-Urban model</a> </p> <a href="https://publications.waset.org/abstracts/16108/the-comparison-between-modelled-and-measured-nitrogen-dioxide-concentrations-in-cold-and-warm-seasons-in-kaunas" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16108.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">408</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18314</span> The Communication Effect of the Emotional Storytelling on Non-Profit Organizations: The Moderating Effect of Social Distance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=ZhangRun">ZhangRun</a>, <a href="https://publications.waset.org/abstracts/search?q=Yi-Fang%20Chiang"> Yi-Fang Chiang</a>, <a href="https://publications.waset.org/abstracts/search?q=Li-Shia%20Huang"> Li-Shia Huang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this study was to explore the impact of emotional story marketing on the fundraising effectiveness of non-profit organizations and to further clarify the communication effectiveness of emotional story types by using "social distance" which reflects individual differences, as an intervening variable in two experiments. The quasi-experimental design of the development experiment (positive warmth of the story v.s. negative sadness of the story) × social distance (near v.s. far) to clarify the effects of social distance. In this study, we designed the experimental advertising situation ourselves, and data were collected through a questionnaire survey. A total of 391 questionnaires were distributed, and data analysis and hypothesis verification were conducted through variance analysis. According to the analysis results of this study, the use of positive emotional appeals in the design of non-profit organization advertisements on issues related to the loss of children will increase the willingness of listeners to donate. For those with close social distance, there is no significant difference between the positive and "warm" emotional story ads and the negative and "sad" emotional story ads. For those with far social distance, there is a significant difference between the positive and "warm" emotional story ads and the negative and "sad" emotional story ads, with the positive and "warm" emotional appeals improving their willingness to donate. Therefore, this study suggests that NPOs should use more positive and warm emotional stories in their advertising design to enhance the fundraising effectiveness of NPO story marketing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=story%20marketing" title="story marketing">story marketing</a>, <a href="https://publications.waset.org/abstracts/search?q=emotional%20appeal" title=" emotional appeal"> emotional appeal</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20distance" title=" social distance"> social distance</a>, <a href="https://publications.waset.org/abstracts/search?q=willingness%20to%20donate" title=" willingness to donate"> willingness to donate</a> </p> <a href="https://publications.waset.org/abstracts/192133/the-communication-effect-of-the-emotional-storytelling-on-non-profit-organizations-the-moderating-effect-of-social-distance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/192133.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">25</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">18313</span> Tribological Behavior of Warm Rolled Spray Formed Al-6Si-1Mg-1Graphite Composite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Surendra%20Kumar%20Chourasiya">Surendra Kumar Chourasiya</a>, <a href="https://publications.waset.org/abstracts/search?q=Sandeep%20Kumar"> Sandeep Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Devendra%20Singh"> Devendra Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the present investigation tribological behavior of Al-6Si-1Mg-1Graphite composite has been explained. The composite was developed through the unique spray forming route in the spray forming chamber by using N₂ gas at 7kg/cm² and the flight distance was 400 mm. Spray formed composite having a certain amount of porosity which was reduced by the deformations. The composite was subjected to the warm rolling (WR) at 250ºC up to 40% reduction. Spray forming composite shows the considerable microstructure refinement, equiaxed grains, distribution of silicon and graphite particles in the primary matrix of the composite. Graphite (Gr) was incorporated externally during the process that works as a solid lubricant. Porosity decreased after reduction and hardness increases. Pin on disc test has been performed to analyze the wear behavior which is the function of sliding distance for all percent reduction of the composite. 30% WR composite shows the better result of wear rate and coefficient of friction. The improved wear properties of the composite containing Gr are discussed in light of the microstructural features of spray formed the composite and the nature of the debris particles. Scanning electron microscope and optical microscope analysis of the present material supported the prediction of aforementioned changes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Al-6Si-1Mg-1Graphite" title="Al-6Si-1Mg-1Graphite">Al-6Si-1Mg-1Graphite</a>, <a href="https://publications.waset.org/abstracts/search?q=spray%20forming" title=" spray forming"> spray forming</a>, <a href="https://publications.waset.org/abstracts/search?q=warm%20rolling" title=" warm rolling"> warm rolling</a>, <a href="https://publications.waset.org/abstracts/search?q=wear" title=" wear"> wear</a> </p> <a href="https://publications.waset.org/abstracts/77455/tribological-behavior-of-warm-rolled-spray-formed-al-6si-1mg-1graphite-composite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77455.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">565</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">18312</span> Recycled Asphalt Pavement with Warm Mix Additive for Sustainable Road Construction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Meor%20Othman%20Hamzah">Meor Othman Hamzah</a>, <a href="https://publications.waset.org/abstracts/search?q=Lillian%20Gungat"> Lillian Gungat</a>, <a href="https://publications.waset.org/abstracts/search?q=Nur%20Izzi%20Md.%20Yusoff"> Nur Izzi Md. Yusoff</a>, <a href="https://publications.waset.org/abstracts/search?q=Jan%20Valentin"> Jan Valentin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The recent hike in raw materials costs and the quest for preservation of the environment has prompted asphalt industries to adopt greener road construction technology. This paper presents a study on such technology by means of asphalt recycling and use of warm mix asphalt (WMA) additive. It evaluates the effects of a WMA named RH-WMA on binder rheological properties and asphalt mixture performance. The recycled asphalt, obtained from local roads, was processed, fractionated, and incorporated with virgin aggregate and binder. For binder testing, the recycled asphalt was extracted and blended with virgin binder. The binder and mixtures specimen containing 30 % and 50 % recycled asphalt contents were mixed with 3 % RH-WMA. The rheological properties of the binder were evaluated based on fundamental, viscosity, and frequency sweep tests. Indirect tensile strength and resilient modulus tests were carried out to assess the mixture’s performances. The rheological properties and strength performance results showed that the addition of RH-WMA slightly reduced the binder and mixtures stiffness. The percentage of recycled asphalt increased the stiffness of binder and mixture, and thus improves the resistance to rutting. Therefore, the integration of recycled asphalt and RH-WMA can be an alternative material for road sustainable construction for countries in the tropics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=recycled%20asphalt" title="recycled asphalt">recycled asphalt</a>, <a href="https://publications.waset.org/abstracts/search?q=warm%20mix%20additive" title=" warm mix additive"> warm mix additive</a>, <a href="https://publications.waset.org/abstracts/search?q=rheological" title=" rheological"> rheological</a>, <a href="https://publications.waset.org/abstracts/search?q=mixture%20performance" title=" mixture performance"> mixture performance</a> </p> <a href="https://publications.waset.org/abstracts/36104/recycled-asphalt-pavement-with-warm-mix-additive-for-sustainable-road-construction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36104.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">516</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">18311</span> A Survey of the Sleep-Disturbed Bedroom Environmental Factors and the Occupants Bedroom Windows or Door Opening Behaviors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chenxi%20Liao">Chenxi Liao</a>, <a href="https://publications.waset.org/abstracts/search?q=Mizuho%20Akimoto"> Mizuho Akimoto</a>, <a href="https://publications.waset.org/abstracts/search?q=Mariya%20Bivolarova"> Mariya Bivolarova</a>, <a href="https://publications.waset.org/abstracts/search?q=Sekhar%20Chandra"> Sekhar Chandra</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaojun%20Fan"> Xiaojun Fan</a>, <a href="https://publications.waset.org/abstracts/search?q=Li%20Lan"> Li Lan</a>, <a href="https://publications.waset.org/abstracts/search?q=Jelle%20Laverge"> Jelle Laverge</a>, <a href="https://publications.waset.org/abstracts/search?q=Pawel%20Wargocki"> Pawel Wargocki</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The bedroom environment plays an important role in maintaining good sleep quality, which is vital for humans health and next-day performance. A survey of the sleep-disturbed bedroom environmental factors and the occupants’ bedroom windows (BW) or bedroom door (BD) opening behaviors was launched in the capital region of Denmark in 2020 by an online questionnaire. People were asked if they were disturbed by too warm temperature, too cool temperature, noise, or stuffy air during sleep. Also, they reported their BW or the BD opening behaviors in the morning, afternoon, evening, and during sleep. A total of 512 responses were received. Too warm temperature was reported the most among the four sleep-disturbed factors, following too cool temperature, noise, and stuffy air. Whether or not opening BW or the BD was commonly used to improve or change the bedroom environment. The respondents who were disturbed by too warm temperature during sleep opened BW for a longer time in the morning compared to those who were never disturbed by it (OR, 1.28; 95% CI, 1.01-1.62). Those who were disturbed by too cool temperatures tended to open BW less frequently in the morning (OR, 1.24; 95% CI, 0.97-1.57). They preferred keeping BW open in the whole day if they realized stuffy air disturbing their sleep, although only a few of them still opened BW during sleep. Those who were disturbed by too cool temperature (OR, 0.76; 95% CI, 0.63-0.92) and noise (OR, 0.80; 95% CI, 0.66-0.96) were more likely to sleep with the BD open in a lesser frequency. Opening BW, increasing ventilation rates, could relieve disturbing by stuffy air during sleep, but induced other sleep-disturbed factors such as too cool in winter and noise. Also, opening BW only when people were not sleep was not sufficient to exempt disturbing by stuffy air during sleep. Using mechanical ventilation in bedrooms is necessary to ensure good air quality and meanwhile to avoid thermal discomfort and noise during sleep. Future studies are required to figure out the required flow rate of fresh air of mechanical ventilation during sleep. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bedroom%20environmental" title="bedroom environmental">bedroom environmental</a>, <a href="https://publications.waset.org/abstracts/search?q=survey" title=" survey"> survey</a>, <a href="https://publications.waset.org/abstracts/search?q=occupants%20behaviors" title=" occupants behaviors"> occupants behaviors</a>, <a href="https://publications.waset.org/abstracts/search?q=windows" title=" windows"> windows</a>, <a href="https://publications.waset.org/abstracts/search?q=door" title=" door"> door</a> </p> <a href="https://publications.waset.org/abstracts/129305/a-survey-of-the-sleep-disturbed-bedroom-environmental-factors-and-the-occupants-bedroom-windows-or-door-opening-behaviors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/129305.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">18310</span> Considerations When Using the Beach Chair Position for Surgery</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aniko%20Babits">Aniko Babits</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20Daoud"> Ahmad Daoud</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: The beach chair position (BCP) is a good approach to almost all types of shoulder procedures. However, moving an anaesthetized patient from the supine to sitting position may pose a risk of cerebral hypoperfusion and potential cerebral ischaemia as a result of significant reductions in blood pressure and cardiac output. Hypocapnia in ventilated patients and impaired blood flow to the vertebral artery due to hyperextension, rotation, or tilt of the head may have an impact too. Co-morbidities that may increase the risk of cerebral ischaemia in the BCP include diabetes with autonomic neuropathy, cerebrovascular disease, cardiac disease, severe hypertension, generalized vascular disease, history of fainting, and febrile conditions. Beach chair surgery requires a careful anaesthetic and surgical management to optimize patient safety and minimize the risk of adverse outcomes. Methods: We describe the necessary steps for optimal patient positioning and the aims of intraoperative management, including anaesthetic techniques to ensure patient safety in the BCP. Results: Regardless of the anaesthetic technique, adequate patient positioning is paramount in the BCP. The key steps to BCP are aimed at optimizing surgical success and minimizing the risk of severe neurovascular complications. The primary aim of anaesthetic management is to maintain cardiac output and mean arterial pressure (MAP) to protect cerebral perfusion. Blood pressure management includes treating a fall in MAP of more than 25% from baseline or a MAP less than 70 mmHg. This can be achieved by using intravenous fluids or vasopressors. A number of anaesthetic techniques could also improve cerebral oxygenation, including avoidance of intermittent positive pressure ventilation (IPPV) with general anaesthesia (GA), using regional anaesthesia, maintaining normocapnia and normothermia, and the application of compression stockings. Conclusions: In summary, BCP is a reliable and effective position to perform shoulder procedures. Simple steps to patient positioning and careful anaesthetic management could maximize patient safety and avoid unwanted adverse outcomes in patients undergoing surgery in BCP. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beach%20chair%20position" title="beach chair position">beach chair position</a>, <a href="https://publications.waset.org/abstracts/search?q=cerebral%20oxygenation" title=" cerebral oxygenation"> cerebral oxygenation</a>, <a href="https://publications.waset.org/abstracts/search?q=cerebral%20perfusion" title=" cerebral perfusion"> cerebral perfusion</a>, <a href="https://publications.waset.org/abstracts/search?q=sitting%20position" title=" sitting position"> sitting position</a> </p> <a href="https://publications.waset.org/abstracts/152316/considerations-when-using-the-beach-chair-position-for-surgery" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152316.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">90</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">18309</span> Teleconnection between El Nino-Southern Oscillation and Seasonal Flow of the Surma River and Possibilities of Long Range Flood Forecasting</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Monika%20Saha">Monika Saha</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20T.%20M.%20Hasan%20Zobeyer"> A. T. M. Hasan Zobeyer</a>, <a href="https://publications.waset.org/abstracts/search?q=Nasreen%20Jahan"> Nasreen Jahan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> El Nino-Southern Oscillation (ENSO) is the interaction between atmosphere and ocean in tropical Pacific which causes inconsistent warm/cold weather in tropical central and eastern Pacific Ocean. Due to the impact of climate change, ENSO events are becoming stronger in recent times, and therefore it is very important to study the influence of ENSO in climate studies. Bangladesh, being in the low-lying deltaic floodplain, experiences the worst consequences due to flooding every year. To reduce the catastrophe of severe flooding events, non-structural measures such as flood forecasting can be helpful in taking adequate precautions and steps. Forecasting seasonal flood with a longer lead time of several months is a key component of flood damage control and water management. The objective of this research is to identify the possible strength of teleconnection between ENSO and river flow of Surma and examine the potential possibility of long lead flood forecasting in the wet season. Surma is one of the major rivers of Bangladesh and is a part of the Surma-Meghna river system. In this research, sea surface temperature (SST) has been considered as the ENSO index and the lead time is at least a few months which is greater than the basin response time. The teleconnection has been assessed by the correlation analysis between July-August-September (JAS) flow of Surma and SST of Nino 4 region of the corresponding months. Cumulative frequency distribution of standardized JAS flow of Surma has also been determined as part of assessing the possible teleconnection. Discharge data of Surma river from 1975 to 2015 is used in this analysis, and remarkable increased value of correlation coefficient between flow and ENSO has been observed from 1985. From the cumulative frequency distribution of the standardized JAS flow, it has been marked that in any year the JAS flow has approximately 50% probability of exceeding the long-term average JAS flow. During El Nino year (warm episode of ENSO) this probability of exceedance drops to 23% and while in La Nina year (cold episode of ENSO) it increases to 78%. Discriminant analysis which is known as 'Categoric Prediction' has been performed to identify the possibilities of long lead flood forecasting. It has helped to categorize the flow data (high, average and low) based on the classification of predicted SST (warm, normal and cold). From the discriminant analysis, it has been found that for Surma river, the probability of a high flood in the cold period is 75% and the probability of a low flood in the warm period is 33%. A synoptic parameter, forecasting index (FI) has also been calculated here to judge the forecast skill and to compare different forecasts. This study will help the concerned authorities and the stakeholders to take long-term water resources decisions and formulate policies on river basin management which will reduce possible damage of life, agriculture, and property. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=El%20Nino-Southern%20Oscillation" title="El Nino-Southern Oscillation">El Nino-Southern Oscillation</a>, <a href="https://publications.waset.org/abstracts/search?q=sea%20surface%20temperature" title=" sea surface temperature"> sea surface temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=surma%20river" title=" surma river"> surma river</a>, <a href="https://publications.waset.org/abstracts/search?q=teleconnection" title=" teleconnection"> teleconnection</a>, <a href="https://publications.waset.org/abstracts/search?q=cumulative%20frequency%20distribution" title=" cumulative frequency distribution"> cumulative frequency distribution</a>, <a href="https://publications.waset.org/abstracts/search?q=discriminant%20analysis" title=" discriminant analysis"> discriminant analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=forecasting%20index" title=" forecasting index"> forecasting index</a> </p> <a href="https://publications.waset.org/abstracts/105011/teleconnection-between-el-nino-southern-oscillation-and-seasonal-flow-of-the-surma-river-and-possibilities-of-long-range-flood-forecasting" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105011.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">18308</span> Effect of Temperature and Deformation Mode on Texture Evolution of AA6061</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Ghosh">M. Ghosh</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Miroux"> A. Miroux</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20A.%20I.%20Kestens"> L. A. I. Kestens</a> </p> <p class="card-text"><strong>Abstract:</strong></p> At molecular or micrometre scale, practically all materials are neither homogeneous nor isotropic. The concept of texture is used to identify the structural features that cause the properties of a material to be anisotropic. For metallic materials, the anisotropy of the mechanical behaviour originates from the crystallographic nature of plastic deformation, and is therefore controlled by the crystallographic texture. Anisotropy in mechanical properties often constitutes a disadvantage in the application of materials, as it is often illustrated by the earing phenomena during drawing. However, advantages may also be attained when considering other properties (e.g. optimization of magnetic behaviour to a specific direction) by controlling texture through thermo-mechanical processing). Nevertheless, in order to have better control over the final properties it is essential to relate texture with materials processing route and subsequently optimise their performance. However, up to date, few studies have been reported about the evolution of texture in 6061 aluminium alloy during warm processing (from room temperature to 250ºC). In present investigation, recrystallized 6061 aluminium alloy samples were subjected to tensile and plane strain compression (PSC) at room and warm temperatures. The gradual change of texture following both deformation modes were measured and discussed. Tensile tests demonstrate the mechanism at low strain while PSC does the same at high strain and eventually simulate the condition of rolling. Cube dominated texture of the initial rolled and recrystallized AA6061 sheets were replaced by domination of S and R components after PSC at room temperature, warm temperature (250ºC) though did not reflect any noticeable deviation from room temperature observation. It was also noticed that temperature has no significant effect on the evolution of grain morphology during PSC. The band contrast map revealed that after 30% deformation the substructure inside the grain is mainly made of series of parallel bands. A tendency for decrease of Cube and increase of Goss was noticed after tensile deformation compared to as-received material. Like PSC, texture does not change after deformation at warm temperature though. n-fibre was noticed for all the three textures from Goss to Cube. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AA%206061" title="AA 6061">AA 6061</a>, <a href="https://publications.waset.org/abstracts/search?q=deformation" title=" deformation"> deformation</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature" title=" temperature"> temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=tensile" title=" tensile"> tensile</a>, <a href="https://publications.waset.org/abstracts/search?q=PSC" title=" PSC"> PSC</a>, <a href="https://publications.waset.org/abstracts/search?q=texture" title=" texture"> texture</a> </p> <a href="https://publications.waset.org/abstracts/5951/effect-of-temperature-and-deformation-mode-on-texture-evolution-of-aa6061" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5951.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">484</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">18307</span> Performance Evaluation and Cost Analysis of Standby Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20A.%20Hajeeh">Mohammed A. Hajeeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Pumping systems are an integral part of water desalination plants, their effective functioning is vital for the operation of a plant. In this research work, the reliability and availability of pressurized pumps in a reverse osmosis desalination plant are studied with the objective of finding configurations that provides optimal performance. Six configurations of a series system with different number of warm and cold standby components were examined. Closed form expressions for the mean time to failure (MTTF) and the long run availability are derived and compared under the assumption that the time between failures and repair times of the primary and standby components are exponentially distributed. Moreover, a cost/ benefit analysis is conducted in order to identify a configuration with the best performance and least cost. It is concluded that configurations with cold standby components are preferable especially when the pumps are of the size. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=availability" title="availability">availability</a>, <a href="https://publications.waset.org/abstracts/search?q=cost%2Fbenefit" title=" cost/benefit"> cost/benefit</a>, <a href="https://publications.waset.org/abstracts/search?q=mean%20time%20to%20failure" title=" mean time to failure"> mean time to failure</a>, <a href="https://publications.waset.org/abstracts/search?q=pumps" title=" pumps"> pumps</a> </p> <a href="https://publications.waset.org/abstracts/4206/performance-evaluation-and-cost-analysis-of-standby-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4206.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">283</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">18306</span> Climatic and Environmental Factors Affecting Human Comfort Evaluation: Case Study of Shiraz Iran</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamid%20Yazdani">Hamid Yazdani</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatemeh%20Abbasi"> Fatemeh Abbasi </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Understanding the natural potentials, as the basis for the prevailing context of human activities, environmental planning, and land-use form shows. In this regard, regional characteristics and spatial distribution of the dominant elements in shaping human behavior and environment play a role Knndhayy. As far as today's studies of human Byvklymay basis for urban planning, settlement, architecture, Tourism and so on. In this study, comfort or lack of comfort in Shiraz in Horn of models and indices based on eco-Baker, Trjvng, were examined and the best time to do-using 39 years of data (TCI) stress, and the effective temperature Environmental activities and tourism in the city was established. The results showed that the worth parameters used, the ability to detect Terms of comfort and discomfort are Shiraz, despite minor differences, relatively homogenous aspects of the city provide a comfortable climate. Studies showed that having diversity in the worth of Shiraz during the year, the situation is heating up much coolness; during winter and summer Find out eco comfort zone and during the transition from cold to warm in spring and autumn (April) and warm to cold (November) climate Iran is close to human comfort. Totally, unique human comfort conditions in spring, the best season for environmental activities Tourism in Shiraz. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=BIO%20comfort%20Klymayy" title="BIO comfort Klymayy">BIO comfort Klymayy</a>, <a href="https://publications.waset.org/abstracts/search?q=Trjvng" title=" Trjvng"> Trjvng</a>, <a href="https://publications.waset.org/abstracts/search?q=baker" title=" baker"> baker</a>, <a href="https://publications.waset.org/abstracts/search?q=effective%20temperature" title=" effective temperature"> effective temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=stress%20and%20%28TCI%29" title=" stress and (TCI)"> stress and (TCI)</a> </p> <a href="https://publications.waset.org/abstracts/15474/climatic-and-environmental-factors-affecting-human-comfort-evaluation-case-study-of-shiraz-iran" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15474.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">348</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">18305</span> Study of Large-Scale Atmospheric Convection over the Tropical Indian Ocean and Its Association with Oceanic Variables</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Supriya%20Manikrao%20Ovhal">Supriya Manikrao Ovhal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In India, the summer monsoon rainfall occurs owing to large scale convection with reference to continental ITCZ. It was found that convection over tropical ocean increases with SST from 26 to 28 degree C, and when SST is above 29 degree C, it sharply decreases for warm pool areas of Indian and for monsoon areas of West Pacific Ocean. The reduction in convection can be influenced by large scale subsidence forced by nearby or remotely generated deep convection, thus it was observed that under the influence of strong large scale rising motion, convection does not decreases but increases monotonically with SST even if SST value is higher than 29.5 degree C. Since convection is related to SST gradient, that helps to generate low level moisture convergence and upward vertical motion in the atmosphere. Strong wind fields like cross equatorial low level jet stream on equator ward side of the warm pool are produced due to convection initiated by SST gradient. Areas having maximum SST have low SST gradient, and that result in feeble convection. Hence it is imperative to mention that the oceanic role (other than SST) could be prominent in influencing large Scale Atmospheric convection. Since warm oceanic surface somewhere or the other contributes to penetrate the heat radiation to the subsurface of the ocean, and as there is no studies seen related to oceanic subsurface role in large Scale Atmospheric convection, in the present study, we are concentrating on the oceanic subsurface contribution in large Scale Atmospheric convection by considering the SST gradient, mixed layer depth (MLD), thermocline, barrier layer. The present study examines the probable role of subsurface ocean parameters in influencing convection. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sst" title="sst">sst</a>, <a href="https://publications.waset.org/abstracts/search?q=d20" title=" d20"> d20</a>, <a href="https://publications.waset.org/abstracts/search?q=olr" title=" olr"> olr</a>, <a href="https://publications.waset.org/abstracts/search?q=wind" title=" wind"> wind</a> </p> <a href="https://publications.waset.org/abstracts/156972/study-of-large-scale-atmospheric-convection-over-the-tropical-indian-ocean-and-its-association-with-oceanic-variables" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156972.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">93</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">18304</span> Practical Method for Failure Prediction of Mg Alloy Sheets during Warm Forming Processes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sang-Woo%20Kim">Sang-Woo Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Young-Seon%20Lee"> Young-Seon Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An important concern in metal forming, even at elevated temperatures, is whether a desired deformation can be accomplished without any failure of the material. A detailed understanding of the critical condition for crack initiation provides not only the workability limit of a material but also a guide-line for process design. This paper describes the utilization of ductile fracture criteria in conjunction with the finite element method (FEM) for predicting the onset of fracture in warm metal working processes of magnesium alloy sheets. Critical damage values for various ductile fracture criteria were determined from uniaxial tensile tests and were expressed as the function of strain rate and temperature. In order to find the best criterion for failure prediction, Erichsen cupping tests under isothermal conditions and FE simulations combined with ductile fracture criteria were carried out. Based on the plastic deformation histories obtained from the FE analyses of the Erichsen cupping tests and the critical damage value curves, the initiation time and location of fracture were predicted under a bi-axial tensile condition. The results were compared with experimental results and the best criterion was recommended. In addition, the proposed methodology was used to predict the onset of fracture in non-isothermal deep drawing processes using an irregular shaped blank, and the results were verified experimentally. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnesium" title="magnesium">magnesium</a>, <a href="https://publications.waset.org/abstracts/search?q=AZ31%20alloy" title=" AZ31 alloy"> AZ31 alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=ductile%20fracture" title=" ductile fracture"> ductile fracture</a>, <a href="https://publications.waset.org/abstracts/search?q=FEM" title=" FEM"> FEM</a>, <a href="https://publications.waset.org/abstracts/search?q=sheet%20forming" title=" sheet forming"> sheet forming</a>, <a href="https://publications.waset.org/abstracts/search?q=Erichsen%20cupping%20test" title=" Erichsen cupping test"> Erichsen cupping test</a> </p> <a href="https://publications.waset.org/abstracts/9024/practical-method-for-failure-prediction-of-mg-alloy-sheets-during-warm-forming-processes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9024.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">373</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=warm%20ischaemia%20time&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=warm%20ischaemia%20time&page=3">3</a></li> <li class="page-item"><a class="page-link" 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