Search results for: Kiarash Dogahe

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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> 4</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Kiarash Dogahe</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4</span> Cycle Number Estimation Method on Fatigue Crack Initiation Using Voronoi Tessellation and the Tanaka Mura Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Ridzwan%20Bin%20Abd%20Rahim">Mohammad Ridzwan Bin Abd Rahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Siegfried%20Schmauder"> Siegfried Schmauder</a>, <a href="https://publications.waset.org/abstracts/search?q=Yupiter%20HP%20Manurung"> Yupiter HP Manurung</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Binkele"> Peter Binkele</a>, <a href="https://publications.waset.org/abstracts/search?q=Meor%20Iqram%20B.%20Meor%20Ahmad"> Meor Iqram B. Meor Ahmad</a>, <a href="https://publications.waset.org/abstracts/search?q=Kiarash%20Dogahe"> Kiarash Dogahe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper deals with the short crack initiation of the material P91 under cyclic loading at two different temperatures, concluded with the estimation of the short crack initiation W枚hler (S/N) curve. An artificial but representative model microstructure was generated using Voronoi tessellation and the Finite Element Method, and the non-uniform stress distribution was calculated accordingly afterward. The number of cycles needed for crack initiation is estimated on the basis of the stress distribution in the model by applying the physically-based Tanaka-Mura model. Initial results show that the number of cycles to generate crack initiation is strongly correlated with temperature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=short%20crack%20initiation" title="short crack initiation">short crack initiation</a>, <a href="https://publications.waset.org/abstracts/search?q=P91" title=" P91"> P91</a>, <a href="https://publications.waset.org/abstracts/search?q=W%C3%B6hler%20curve" title=" W枚hler curve"> W枚hler curve</a>, <a href="https://publications.waset.org/abstracts/search?q=Voronoi%20tessellation" title=" Voronoi tessellation"> Voronoi tessellation</a>, <a href="https://publications.waset.org/abstracts/search?q=Tanaka-Mura%20model" title=" Tanaka-Mura model"> Tanaka-Mura model</a> </p> <a href="https://publications.waset.org/abstracts/151708/cycle-number-estimation-method-on-fatigue-crack-initiation-using-voronoi-tessellation-and-the-tanaka-mura-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/151708.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">105</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> A New Approach to Retrofit Steel Moment Resisting Frame Structures after Mainshock</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amir%20H.%20Farivarrad">Amir H. Farivarrad</a>, <a href="https://publications.waset.org/abstracts/search?q=Kiarash%20M.%20Dolatshahi"> Kiarash M. Dolatshahi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> During earthquake events, aftershocks can significantly increase the probability of collapse of buildings, especially for those with induced damages during the mainshock. In this paper, a practical approach is proposed for seismic rehabilitation of mainshock-damaged buildings that can be easily implemented within few days after the mainshock. To show the efficacy of the proposed method, a case study nine story steel moment frame building is chosen which was designed to pre-Northridge codes. The collapse fragility curve for the aftershock is presented for both the retrofitted and non-retrofitted structures. Comparison of the collapse fragility curves shows that the proposed method is indeed applicable to reduce the seismic collapse risk. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aftershock" title="aftershock">aftershock</a>, <a href="https://publications.waset.org/abstracts/search?q=the%20collapse%20fragility%20curve" title=" the collapse fragility curve"> the collapse fragility curve</a>, <a href="https://publications.waset.org/abstracts/search?q=seismic%20rehabilitation" title=" seismic rehabilitation"> seismic rehabilitation</a>, <a href="https://publications.waset.org/abstracts/search?q=seismic%20retrofitting" title=" seismic retrofitting"> seismic retrofitting</a> </p> <a href="https://publications.waset.org/abstracts/30748/a-new-approach-to-retrofit-steel-moment-resisting-frame-structures-after-mainshock" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30748.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">437</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">2</span> Seismic Soil-Pile Interaction Considering Nonlinear Soil Column Behavior in Saturated and Dry Soil Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Moeini">Mohammad Moeini</a>, <a href="https://publications.waset.org/abstracts/search?q=Mehrdad%20Ghyabi"> Mehrdad Ghyabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Kiarash%20Mohtasham%20Dolatshahi"> Kiarash Mohtasham Dolatshahi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper investigates seismic soil-pile interaction using the Beam on Nonlinear Winkler Foundation (BNWF) approach. Three soil types are considered to cover all the possible responses, as well as nonlinear site response analysis using finite element method in OpenSees platform. Excitations at each elevation that are output of the site response analysis are used as the input excitation to the soil pile system implementing multi-support excitation method. Spectral intensities of acceleration show that the extent of the response in sand is more severe than that of clay, in addition, increasing the PGA of ground strong motion will affect the sandy soil more, in comparison with clayey medium, which is an indicator of the sensitivity of soil-pile systems in sandy soil. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=BNWF%20method" title="BNWF method">BNWF method</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-support%20excitation" title=" multi-support excitation"> multi-support excitation</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear%20site%20response%20analysis" title=" nonlinear site response analysis"> nonlinear site response analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=seismic%20soil-pile%20interaction" title=" seismic soil-pile interaction"> seismic soil-pile interaction</a> </p> <a href="https://publications.waset.org/abstracts/64350/seismic-soil-pile-interaction-considering-nonlinear-soil-column-behavior-in-saturated-and-dry-soil-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/64350.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">398</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">1</span> The Effects of Alpha-Lipoic Acid Supplementation on Post-Stroke Patients: A Systematic Review and Meta-Analysis of Randomized Controlled Trials</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamid%20Abbasi">Hamid Abbasi</a>, <a href="https://publications.waset.org/abstracts/search?q=Neda%20Jourabchi"> Neda Jourabchi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ranasadat%20Abedi"> Ranasadat Abedi</a>, <a href="https://publications.waset.org/abstracts/search?q=Kiarash%20Tajernarenj"> Kiarash Tajernarenj</a>, <a href="https://publications.waset.org/abstracts/search?q=Mehdi%20Farhoudi"> Mehdi Farhoudi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sarvin%20Sanaie"> Sarvin Sanaie</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Alpha lipoic acid (ALA), fat- and water-soluble, coenzyme with sulfuret content, has received considerable attention for its potential therapeutic role in diabetes, cardiovascular diseases, cancers, and central nervous disease. This investigation aims to evaluate the probable protective effects of ALA in stroke patients. Methods: Based on Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines, This meta-analysis was performed. The PICO criteria for this meta-analysis were as follows: Population/Patients (P: stroke patients); Intervention (I: ALA); Comparison (C: control); Outcome (O: blood glucose, lipid profile, oxidative stress, inflammatory factors).In addition, Studies that were excluded from the analysis consisted of in vitro, in vivo, and ex vivo studies, case reports, quasi-experimental studies. Scopus, PubMed, Web of Science, EMBASE databases were searched until August 2023. Results: Of 496 records that were screened in the title/abstract stage, 9 studies were included in this meta-analysis. The sample sizes in the included studies vary between 28 and 90. The result of risk of bias was performed via risk of bias (RoB) in randomized-controlled trials (RCTs) based on the second version of the Cochrane RoB assessment tool. 8 studies had a definitely high risk of bias. Discussion: To the best of our knowledge, The present meta-analysis is the first study addressing the effectiveness of ALA supplementation in enhancing post-stroke metabolic markers, including lipid profile, oxidative stress, and inflammatory indices. It is imperative to acknowledge certain potential limitations inherent in this study. First of all, type of treatment (oral or intravenous infusion) could alter the bioavailability of ALA. Our study had restricted evidence regarding the impact of ALA supplementation on included outcomes. Therefore, further research is warranted to develop into the effects of ALA specifically on inflammation and oxidative stress. Funding: The research protocol was approved and supported by the Student Research Committee, Tabriz University of Medical Sciences (grant number: 72825). Registration: This study was registered in the International prospective register of systematic reviews (PROSPERO ID: CR42023461612). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alpha-lipoic%20acid" title="alpha-lipoic acid">alpha-lipoic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=lipid%20profile" title=" lipid profile"> lipid profile</a>, <a href="https://publications.waset.org/abstracts/search?q=blood%20glucose" title=" blood glucose"> blood glucose</a>, <a href="https://publications.waset.org/abstracts/search?q=inflammatory%20factors" title=" inflammatory factors"> inflammatory factors</a>, <a href="https://publications.waset.org/abstracts/search?q=oxidative%20stress" title=" oxidative stress"> oxidative stress</a>, <a href="https://publications.waset.org/abstracts/search?q=meta-analysis" title=" meta-analysis"> meta-analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=post-stroke" title=" post-stroke"> post-stroke</a> </p> <a href="https://publications.waset.org/abstracts/178953/the-effects-of-alpha-lipoic-acid-supplementation-on-post-stroke-patients-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/178953.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">71</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" 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Search results for: Kiarash Dogahe