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Mortazavi</title> <meta name="description" content="Search results for: Seyedshahram Mortazavi"> <meta name="keywords" content="Seyedshahram Mortazavi"> <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="Seyedshahram Mortazavi"> <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> 23</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Seyedshahram Mortazavi</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">23</span> Study of Nanocrystalline Scintillator for Alpha Particles Detection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Azadeh%20Farzaneh">Azadeh Farzaneh</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Reza%20Abdi"> Mohammad Reza Abdi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Quaranta"> A. Quaranta</a>, <a href="https://publications.waset.org/abstracts/search?q=Matteo%20Dalla%20Palma"> Matteo Dalla Palma</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyedshahram%20Mortazavi"> Seyedshahram Mortazavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We report on the synthesis of cesium-iodide nanoparticles using sol-gel technique. The structural properties of CsI nanoparticles were characterized by X-ray diffraction and Scanning Electron Microscope (SEM) Also, optical properties were followed by optical absorption and UV–vis fluorescence. Intense photoluminescence is also observed, with some spectral tuning possible with ripening time getting a range of emission photon wavelength approximately from 366 to 350 nm. The size effect on CsI luminescence leads to an increase in scintillation light yield, a redshift of the emission bands of the on_center and off_center self_trapped excitons (STEs) and an increase in the contribution of the off_center STEs to the net intrinsic emission yield. The energy transfer from the matrix to CsI nanoparticles is a key characteristic for scintillation detectors. So the scintillation spectra to alpha particles of sample were monitored. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanoparticles" title="nanoparticles">nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=luminescence" title=" luminescence"> luminescence</a>, <a href="https://publications.waset.org/abstracts/search?q=sol%20gel" title=" sol gel"> sol gel</a>, <a href="https://publications.waset.org/abstracts/search?q=scintillator" title=" scintillator"> scintillator</a> </p> <a href="https://publications.waset.org/abstracts/57403/study-of-nanocrystalline-scintillator-for-alpha-particles-detection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57403.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">599</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">22</span> Design, Control and Autonomous Trajectory Tracking of an Octorotor Rotorcraft</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Jamal%20Haddadi">Seyed Jamal Haddadi</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Reza%20Mehranpour"> M. Reza Mehranpour</a>, <a href="https://publications.waset.org/abstracts/search?q=Roya%20Sadat%20Mortazavi"> Roya Sadat Mortazavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Zahra%20Sadat%20Mortazavi"> Zahra Sadat Mortazavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Principal aim of this research is trajectory tracking, attitude and position control scheme in real flight mode by an Octorotor helicopter. For more stability, in this Unmanned Aerial Vehicle (UAV), number of motors is increased to eight motors which end of each arm installed two coaxial counter rotating motors. Dynamic model of this Octorotor includes of motion equation for translation and rotation. Utilized controller is proportional-integral-derivative (PID) control loop. The proposed controller is designed such that to be able to attenuate an effect of external wind disturbance and guarantee stability in this condition. The trajectory is determined by a Global Positioning System (GPS). Also an ARM CortexM4 is used as microprocessor. Electronic board of this UAV designed as able to records all of the sensors data, similar to an aircraft black box in external memory. Finally after auto landing of Octorotor, flight data is shown in MATLAB software and Experimental results of the proposed controller show the effectiveness of our approach on the Autonomous Quadrotor in real conditions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=octorotor" title="octorotor">octorotor</a>, <a href="https://publications.waset.org/abstracts/search?q=design" title=" design"> design</a>, <a href="https://publications.waset.org/abstracts/search?q=PID%20controller" title=" PID controller"> PID controller</a>, <a href="https://publications.waset.org/abstracts/search?q=autonomous" title=" autonomous"> autonomous</a>, <a href="https://publications.waset.org/abstracts/search?q=trajectory%20tracking" title=" trajectory tracking "> trajectory tracking </a> </p> <a href="https://publications.waset.org/abstracts/52924/design-control-and-autonomous-trajectory-tracking-of-an-octorotor-rotorcraft" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52924.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">304</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">21</span> Pregnant Women with Dental Amalgam Fillings Limiting Their Exposure to Electromagnetic Fields to Prevent the Toxic Effects of Mercury in Their Fetuses</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ghazal%20Mortazavi">Ghazal Mortazavi</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20M.%20J.%20Mortazavi"> S. M. J. Mortazavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Although seems to be ultra-conservative, it has recently been suggested that whenever it is possible, pregnant women should postpone dental amalgam restorations to avoid the toxic effect of mercury on the foetus. Dental amalgam fillings cause significant exposure to elemental mercury vapour in the general population. Over the past several years, our lab has focused on the health effects of exposure of laboratory animals and humans to different sources of electromagnetic fields such as mobile phones and their base stations, mobile phone jammers, laptop computers, radars, dentistry cavitrons and MRI. Today, substantial evidence indicates that mercury even at low doses may lead to toxicity. Increased release of mercury from dental amalgam fillings after exposure to MRI or microwave radiation emitted by mobile phones has been previously shown by our team. Moreover, our recent studies on the effects of stronger magnetic fields entirely confirmed our previous findings. From the other point of view, we have also shown that papers which reported no increased release of mercury after MRI, may have some methodological flaws. As a strong positive correlation between maternal and cord blood mercury levels has been found in some studies, our findings regarding the effect of exposure to electromagnetic fields on the release of mercury from dental amalgam fillings lead us to this conclusion that pregnant women with dental amalgam fillings should limit their exposure to electromagnetic fields to prevent toxic effects of mercury in their foetuses. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pregnancy" title="pregnancy">pregnancy</a>, <a href="https://publications.waset.org/abstracts/search?q=foetus" title=" foetus"> foetus</a>, <a href="https://publications.waset.org/abstracts/search?q=mercury%20release" title=" mercury release"> mercury release</a>, <a href="https://publications.waset.org/abstracts/search?q=dental%20amalgam" title=" dental amalgam"> dental amalgam</a>, <a href="https://publications.waset.org/abstracts/search?q=electromagnetic%20fields" title=" electromagnetic fields"> electromagnetic fields</a>, <a href="https://publications.waset.org/abstracts/search?q=MRI" title=" MRI"> MRI</a>, <a href="https://publications.waset.org/abstracts/search?q=mobile%20phones" title=" mobile phones"> mobile phones</a> </p> <a href="https://publications.waset.org/abstracts/21149/pregnant-women-with-dental-amalgam-fillings-limiting-their-exposure-to-electromagnetic-fields-to-prevent-the-toxic-effects-of-mercury-in-their-fetuses" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21149.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">275</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">20</span> Occupational Exposure to Electromagnetic Fields Can Increase the Release of Mercury from Dental Amalgam Fillings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ghazal%20Mortazavi">Ghazal Mortazavi</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20M.%20J.%20Mortazavi"> S. M. J. Mortazavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Electricians, power line engineers and power station workers, welders, aluminum reduction workers, MRI operators and railway workers are occupationally exposed to different levels of electromagnetic fields. Mercury is among the most toxic metals. Dental amalgam fillings cause significant exposure to elemental mercury vapour in the general population. Today, substantial evidence indicates that mercury even at low doses may lead to toxicity. Increased release of mercury from dental amalgam fillings after exposure to MRI or microwave radiation emitted by mobile phones has been previously shown by our team. Moreover, our recent studies on the effects of stronger magnetic fields entirely confirmed our previous findings. From the other point of view, we have also shown that papers which reported no increased release of mercury after MRI, may have some methodological flaws. Over the past several years, our lab has focused on the health effects of exposure of laboratory animals and humans to different sources of electromagnetic fields such as mobile phones and their base stations, mobile phone jammers, laptop computers, radars, dentistry cavitrons, and MRI. As a strong association between exposure to electromagnetic fields and mercury level has been found in our studies, our findings lead us to this conclusion that occupational exposure to electromagnetic fields in workers with dental amalgam fillings can lead to elevated levels of mercury. Studies which reported that exposure to mercury can be a risk factor of Alzheimer’s disease (AD) due to the accumulation of amyloid beta protein (Aβ) in the brain and those reported that long-term occupational exposure to high levels of electromagnetic fields can increase the risk of Alzheimer's disease and dementia in male workers support our concept and confirm the significant role of the occupational exposure to electromagnetic fields in increasing the mercury level in workers with amalgam fillings. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=occupational%20exposure" title="occupational exposure">occupational exposure</a>, <a href="https://publications.waset.org/abstracts/search?q=electromagnetic%20fields" title=" electromagnetic fields"> electromagnetic fields</a>, <a href="https://publications.waset.org/abstracts/search?q=workers" title=" workers"> workers</a>, <a href="https://publications.waset.org/abstracts/search?q=mercury%20release" title=" mercury release"> mercury release</a>, <a href="https://publications.waset.org/abstracts/search?q=dental%20amalgam" title=" dental amalgam"> dental amalgam</a>, <a href="https://publications.waset.org/abstracts/search?q=restorative%20dentistry" title=" restorative dentistry"> restorative dentistry</a> </p> <a href="https://publications.waset.org/abstracts/23460/occupational-exposure-to-electromagnetic-fields-can-increase-the-release-of-mercury-from-dental-amalgam-fillings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23460.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">431</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">19</span> Competitive Advantage on the Road Again: Exploring Nuances through a Conceptual Review and Future Research Avenues</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyedabdolali%20Mortazavi%20Kamalabadi">Seyedabdolali Mortazavi Kamalabadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Faegheh%20Taheran"> Faegheh Taheran</a> </p> <p class="card-text"><strong>Abstract:</strong></p> By giving an overview of previous arguments and findings concerned with the concept of competitive advantage, first, we define the overall concept of competitive advantage and discuss nuances of understanding such an important and strategic idea. Finally, by considering the major concerns of marketing academia, including globalization, AI-based technologies, consumer well-being, and internal coopetition between a firm’s units, fruitful avenues to be explored by future studies are presented in the form of research propositions. In the end, relevant gaps mentioned by numerous studies that are worth investigating are demonstrated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=artificial%20intelligence" title="artificial intelligence">artificial intelligence</a>, <a href="https://publications.waset.org/abstracts/search?q=competitive%20advantage" title=" competitive advantage"> competitive advantage</a>, <a href="https://publications.waset.org/abstracts/search?q=consumer%20well-being" title=" consumer well-being"> consumer well-being</a>, <a href="https://publications.waset.org/abstracts/search?q=coopetition" title=" coopetition"> coopetition</a>, <a href="https://publications.waset.org/abstracts/search?q=globalization" title=" globalization"> globalization</a>, <a href="https://publications.waset.org/abstracts/search?q=literature%20review" title=" literature review"> literature review</a>, <a href="https://publications.waset.org/abstracts/search?q=temporary%20competitive%20advantage" title=" temporary competitive advantage"> temporary competitive advantage</a> </p> <a href="https://publications.waset.org/abstracts/165717/competitive-advantage-on-the-road-again-exploring-nuances-through-a-conceptual-review-and-future-research-avenues" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/165717.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">113</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18</span> The Effects of Modern Materials on the Moisture Resistance Performance of Architectural Buildings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Leyli%20Hashemi%20Rafsanjani">Leyli Hashemi Rafsanjani</a>, <a href="https://publications.waset.org/abstracts/search?q=Hoda%20Mortazavi%20Alavi"> Hoda Mortazavi Alavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Amirhossein%20Habibzadeh"> Amirhossein Habibzadeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> At present, the atmospheric and environmental factors impose massive damages to buildings. Thus, to reduce these damages, researchers pay more attention on qualitative and quantitative characteristic of buildings materials. Condensation is one of the problems in Contemporary Sustecture Design. It could cause serious damages to the frontage, interior and structural elements of buildings. As a result, taking preventative steps to avoid condensation from occurring in buildings will help prevent avoidable and costly problems in the future. Hence, the aim of this paper is to answer the question: “Does the use of advanced materials cause the reduction of condensation formed on the walls?" In response to those flaws, this paper considered similar articles and selected 20 buildings randomly from contemporary architecture of developing countries which have been built in recent decade from 2002 to 2012, to find out the mutual relation between the usage of advanced materials and level of condensation damages. This consideration shows that by using advanced materials, we will have fewer damages. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=condensation" title="condensation">condensation</a>, <a href="https://publications.waset.org/abstracts/search?q=advanced%20materials" title=" advanced materials"> advanced materials</a>, <a href="https://publications.waset.org/abstracts/search?q=contemporary%20sustecture" title=" contemporary sustecture"> contemporary sustecture</a>, <a href="https://publications.waset.org/abstracts/search?q=moisture" title=" moisture"> moisture</a> </p> <a href="https://publications.waset.org/abstracts/53472/the-effects-of-modern-materials-on-the-moisture-resistance-performance-of-architectural-buildings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53472.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">322</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">17</span> Pahlevāni and Zoorkhāneh Rituals as Creative Cultural Product in Tourism; Case Study: Isfahan, Iran</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Neda%20Torabi%20Farsani">Neda Torabi Farsani</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Mortazavi"> Mohammad Mortazavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Maryam%20Masaeli"> Maryam Masaeli</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nowadays intangible heritage as a creative product plays an important role in promoting tourism. The intangible heritage is transmitted from past generation to the present and future generation and constantly recreated by communities and groups in response to their environment, nature and history. In recent decade, intangible heritage especially Pahlevāni and Zoorkhāneh rituals as creative cultural product attract many tourists to a destination and they well-known as tourist attractions in Iran. The study was conducted in Isfahan city. This research has two major purposes: 1) to introduce Pahlevāni and Zoorkhāneh ritual as tourist attraction and, 2) to investigate the attitude of domestic tourists towards Pahlevāni and Zoorkhāneh ritual in Isfahan city. On the basis of the results of this study, it can be concluded that the domestic tourists are interested in gaining experience and increasing their knowledge in Pahlevāni and Zoorkhāneh ritual. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Isfahan" title="Isfahan">Isfahan</a>, <a href="https://publications.waset.org/abstracts/search?q=Pahlev%C4%81ni%20and%20Zoorkh%C4%81neh%20ritual" title=" Pahlevāni and Zoorkhāneh ritual"> Pahlevāni and Zoorkhāneh ritual</a>, <a href="https://publications.waset.org/abstracts/search?q=tourist%20attitude" title=" tourist attitude"> tourist attitude</a>, <a href="https://publications.waset.org/abstracts/search?q=Iran" title=" Iran"> Iran</a> </p> <a href="https://publications.waset.org/abstracts/84233/pahlevani-and-zoorkhaneh-rituals-as-creative-cultural-product-in-tourism-case-study-isfahan-iran" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84233.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">196</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">16</span> Development of a Testing Rig for a Cold Formed-Hot Rolled Steel Hybrid Wall Panel System </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mina%20Mortazavi">Mina Mortazavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamid%20Ronagh"> Hamid Ronagh</a>, <a href="https://publications.waset.org/abstracts/search?q=Pezhman%20Sharafi"> Pezhman Sharafi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The new concept of a cold formed-hot rolled hybrid steel wall panel system is introduced to overcome the deficiency in lateral load resisting capacity of cold-formed steel structures. The hybrid system is composed of a cold-formed steel part laterally connected to hot rolled part. The hot rolled steel part is responsible for carrying the whole lateral load; while the cold formed steel part is only required to transfer the lateral load to the hot rolled part without any local failure. The vertical load is beared by both hot rolled, and cold formed steel part, proportionally. In order to investigate the lateral performance of the proposed system, it should be tested under simultaneous lateral and vertical load. The main concern is to deliver the loads to each part during the test to simulate the real load distribution in the structure. In this paper, a detailed description of the proposed wall panel system and the designed testing rig is provided. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cold-formed%20steel" title="cold-formed steel">cold-formed steel</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20system" title=" hybrid system"> hybrid system</a>, <a href="https://publications.waset.org/abstracts/search?q=wall%20panel%20system" title=" wall panel system"> wall panel system</a>, <a href="https://publications.waset.org/abstracts/search?q=testing%20rig%20design" title=" testing rig design"> testing rig design</a> </p> <a href="https://publications.waset.org/abstracts/67064/development-of-a-testing-rig-for-a-cold-formed-hot-rolled-steel-hybrid-wall-panel-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/67064.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">422</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">15</span> Effects of Spray Dryer Atomizer Speed on Casein Micelle Size in Whole Fat Milk Powder and Physicochemical Properties of White Cheese</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Goli">Mohammad Goli</a>, <a href="https://publications.waset.org/abstracts/search?q=Akram%20Sharifi"> Akram Sharifi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Yousefi%20Jozdani"> Mohammad Yousefi Jozdani</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Ali%20Mortazavi"> Seyed Ali Mortazavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An industrial spray dryer was used, and the effects of atomizer speed on the physicochemical properties of milk powder, the textural and sensory characteristics of white cheese made from this milk powder, were evaluated. For this purpose, whole milk was converted into powder by using three different speeds (10,000, 11,000, and 12,000 rpm). Results showed that with increasing atomizer speed in the spray dryer, the average size of casein micelle is significantly decreased (p < 0.05), whereas no significant effect is observed on the chemical properties of milk powder. White cheese characteristics indicated that with increasing atomizer speed, texture parameters, such as hardness, mastication, and gumminess, were significantly reduced (p < 0.05). Sensory evaluation also revealed that cheese samples prepared with dried milk produced at 12,000 rpm were highly accepted by panelists. Overall, the findings suggested that 12,000 rpm is the optimal atomizer speed for milk powder production. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=spray%20drying" title="spray drying">spray drying</a>, <a href="https://publications.waset.org/abstracts/search?q=powder%20technology" title=" powder technology"> powder technology</a>, <a href="https://publications.waset.org/abstracts/search?q=atomizer%20speed" title="atomizer speed">atomizer speed</a>, <a href="https://publications.waset.org/abstracts/search?q=particle%20size" title=" particle size"> particle size</a>, <a href="https://publications.waset.org/abstracts/search?q=white%20cheese%20physical%20properties" title=" white cheese physical properties"> white cheese physical properties</a> </p> <a href="https://publications.waset.org/abstracts/40474/effects-of-spray-dryer-atomizer-speed-on-casein-micelle-size-in-whole-fat-milk-powder-and-physicochemical-properties-of-white-cheese" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40474.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">469</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">14</span> Numerical Investigation of Poling Vector Angle on Adaptive Sandwich Plate Deflection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alireza%20Pouladkhan">Alireza Pouladkhan</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Yavari%20Foroushani"> Mohammad Yavari Foroushani</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Mortazavi"> Ali Mortazavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a finite element model for a sandwich plate containing a piezoelectric core. A sandwich plate with a piezoelectric core is constructed using the shear mode of piezoelectric materials. The orientation of poling vector has a significant effect on deflection and stress induced in the piezo-actuated adaptive sandwich plate. In the present study, the influence of this factor for a clamped-clamped-free-free and simple-simple-free-free square sandwich plate is investigated using Finite Element Method. The study uses ABAQUS (v.6.7) software to derive the finite element model of the sandwich plate. By using this model, the study gives the influences of the poling vector angle on the response of the smart structure and determines the maximum transverse displacement and maximum stress induced. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20method" title="finite element method">finite element method</a>, <a href="https://publications.waset.org/abstracts/search?q=sandwich%20plate" title=" sandwich plate"> sandwich plate</a>, <a href="https://publications.waset.org/abstracts/search?q=poling%20vector" title=" poling vector"> poling vector</a>, <a href="https://publications.waset.org/abstracts/search?q=piezoelectric%20materials" title=" piezoelectric materials"> piezoelectric materials</a>, <a href="https://publications.waset.org/abstracts/search?q=smart%20structure" title=" smart structure"> smart structure</a>, <a href="https://publications.waset.org/abstracts/search?q=electric%20enthalpy" title=" electric enthalpy"> electric enthalpy</a> </p> <a href="https://publications.waset.org/abstracts/6825/numerical-investigation-of-poling-vector-angle-on-adaptive-sandwich-plate-deflection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6825.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">233</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13</span> Total Knee Arthroplasty in a Haemophilia: A Patient with High Titre of Inhibitor Using Recombinant Factor VIIa</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20J.%20Mortazavi">Mohammad J. Mortazavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Arvin%20Najafi"> Arvin Najafi</a>, <a href="https://publications.waset.org/abstracts/search?q=Pejman%20Mansouri"> Pejman Mansouri </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Hemophilia A is simply described as deficiency of factor VIII(FVIII) and patients with this disorder have bleeding complications in different organs. By using the recombinant factor VIII in these patients, elective orthopedic surgeries have been done approximately in 40 last years. About 10-30 % of these patients have bleeding complications in their surgeries even by using recombinant factor VIII because of their inhibitor against FVIII molecule. Preoperative haemostatic management in these patients is challenging. We treated a 28-year-old male patient with hemophilia A with FVIII inhibitor which had been detected when he was14 years old (with the titer 54 Bethesda unit(BU)) scheduled for total knee arthroplasty (TKA). We use 90 µg/kg rFVIIa just before the surgery and every 2 hours during surgery. The patient did not have any significant hemorrhage during the surgery and after that. For the 2 days after surgery, the rFVIIa repeated every 2 hours as the same as preoperative dosage(90 µg/kg) and for another 2 days of postoperative admission it continued every 4 hours. After 4th day, the rFVIIa continued every 6 hours with the same dosage until the sixth day from the surgery, and finally the patient were discharged about two weeks after surgery. Seven days after the discharge, he came back for the follow up visit. On the follow up examination, the site of the surgery had neither infection hemarthroses signs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hemophilia" title="hemophilia">hemophilia</a>, <a href="https://publications.waset.org/abstracts/search?q=factor%20VIII%20inhibitor" title=" factor VIII inhibitor"> factor VIII inhibitor</a>, <a href="https://publications.waset.org/abstracts/search?q=total%20knee%20replacement" title=" total knee replacement"> total knee replacement</a>, <a href="https://publications.waset.org/abstracts/search?q=rFVIIa" title=" rFVIIa"> rFVIIa</a> </p> <a href="https://publications.waset.org/abstracts/37428/total-knee-arthroplasty-in-a-haemophilia-a-patient-with-high-titre-of-inhibitor-using-recombinant-factor-viia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37428.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">440</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12</span> Free Shape Optimisation of Cold Formed Steel Sections</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mina%20Mortazavi">Mina Mortazavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Pezhman%20Sharafi"> Pezhman Sharafi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cold-formed steel sections are popular construction materials as structural or non-structural elements. The objective of this paper is to propose an optimisation method for open cross sections targeting the maximum nominal axial strength. The cross sections considered in the optimisation process should all meet a determined critical global buckling load to be considered as a candidate for optimisation process. The maximum dimensions of the cross section are fixed and limited into a predefined rectangular area. The optimisation process is repeated for different available coil thicknesses of 1 mm, 2.5 mm and 3 mm to determine the optimum thickness according to the cross section buckling behaviour. A simple-simple boundary is assumed as end conditions. The number of folds is limited to 20 folds to prevent extra complicated sections. The global buckling load is considered as Euler load and is determined according to the moment of inertia of the cross-section with a constant length. The critical buckling loads are obtained using Finite Strip Method. The results of the optimisation analysis are provided, and the optimum cross-section within the considered range is determined. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=shape%20optimisation" title="shape optimisation">shape optimisation</a>, <a href="https://publications.waset.org/abstracts/search?q=buckling" title=" buckling"> buckling</a>, <a href="https://publications.waset.org/abstracts/search?q=cold%20formed%20steel" title=" cold formed steel"> cold formed steel</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20strip%20method" title=" finite strip method"> finite strip method</a> </p> <a href="https://publications.waset.org/abstracts/66784/free-shape-optimisation-of-cold-formed-steel-sections" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66784.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">399</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">11</span> Two Cases of VACTERL Association in Pregnancy with Lymphocyte Therapy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Mazyar%20Mortazavi">Seyed Mazyar Mortazavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Masod%20Memari"> Masod Memari</a>, <a href="https://publications.waset.org/abstracts/search?q=Hasan%20Ali%20Ahmadi"> Hasan Ali Ahmadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhaleh%20Abed"> Zhaleh Abed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: VACTERL association is a rare disorder with various congenital malformations. The aetiology remains unknown. Combination of at least three congenital anomalies of the following criteria is required for diagnosis: vertebral defects, anal atresia, cardiac anomalies, tracheo-esophageal fistula, renal anomalies, and limb defects. Case presentation: The first case was 1-day old male neonate with multiple congenital anomalies was bore from 28 years old mother. The mother had history of pregnancy with lymphocyte therapy. His anomalies included: defects in thoracic and lumbar vertebral, anal atresia, bilateral hydronephrosis, atrial septal defect, and lower limb abnormality. Other anomalies were cryptorchidism and nasal canal narrowing. The second case was born with 32 weeks gestational age from mother with history of pregnancy with lymphocyte therapy. He had thoracic vertebral defect, cardiac anomalies and renal defect. Conclusion: diagnosis based on clinical finding is VACTERL association. Early diagnosis is very important to investigation and treatment of other coexistence anomalies. VACTERL association in mothers with history of pregnancy with lymphocyte therapy has suggested possibly of relationship between VACTERL association and this method of pregnancy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anal%20atresia" title="anal atresia">anal atresia</a>, <a href="https://publications.waset.org/abstracts/search?q=tracheo-esophageal%20fistula" title=" tracheo-esophageal fistula"> tracheo-esophageal fistula</a>, <a href="https://publications.waset.org/abstracts/search?q=atrial%20septal%20defect" title=" atrial septal defect"> atrial septal defect</a>, <a href="https://publications.waset.org/abstracts/search?q=lymphocyte%20therapy" title=" lymphocyte therapy"> lymphocyte therapy</a> </p> <a href="https://publications.waset.org/abstracts/16267/two-cases-of-vacterl-association-in-pregnancy-with-lymphocyte-therapy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16267.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">453</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">10</span> Prefabricated Integral Design of Building Services</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mina%20Mortazavi">Mina Mortazavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The common approach in the construction industry for restraint requirements in existing structures or new constructions is to have Non-Structural Components (NSCs) assembled and installed on-site by different MEP subcontractors. This leads to a lack of coordination and higher costs, construction time, and complications due to inaccurate building information modelling (BIM) systems. Introducing NSCs to a consistent BIM system from the beginning of the design process and considering their seismic loads in the analysis and design process can improve coordination and reduce costs and time. One solution is to use prefabricated mounts with attached MEPs delivered as an integral module. This eliminates the majority of coordination complications and reduces design and installation costs and time. An advanced approach is to have as many NSCs as possible installed in the same prefabricated module, which gives the structural engineer the opportunity to consider the involved component weights and locations in the analysis and design of the prefabricated support. This efficient approach eliminates coordination and access issues, leading to enhanced quality control. This research will focus on the existing literature on modular sub-assemblies that are integrated with architectural and structural components. Modular MEP systems take advantage of the precision provided by BIM tools to meet exact requirements and achieve a buildable design every time. Modular installations that include MEP systems provide efficient solutions for the installation of MEP services or components. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=building%20services" title="building services">building services</a>, <a href="https://publications.waset.org/abstracts/search?q=modularisation" title=" modularisation"> modularisation</a>, <a href="https://publications.waset.org/abstracts/search?q=prefabrication" title=" prefabrication"> prefabrication</a>, <a href="https://publications.waset.org/abstracts/search?q=integral%20building%20design" title=" integral building design"> integral building design</a> </p> <a href="https://publications.waset.org/abstracts/162709/prefabricated-integral-design-of-building-services" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/162709.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">72</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">9</span> Numerical Modeling of Determination of in situ Rock Mass Deformation Modulus Using the Plate Load Test</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Khodabakhshi">A. Khodabakhshi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Mortazavi"> A. Mortazavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Accurate determination of rock mass deformation modulus, as an important design parameter, is one of the most controversial issues in most engineering projects. A 3D numerical model of standard plate load test (PLT) using the FLAC3D code was carried to investigate the mechanism governing the test process. Five objectives were the focus of this study. The first goal was to employ 3D modeling in the interpretation of PLT conducted at the Bazoft dam site, Iran. The second objective was to investigate the effect of displacements measuring depth from the loading plates on the calculated moduli. The magnitude of rock mass deformation modulus calculated from PLT depends on anchor depth, and in practice, this may be a cause of error in the selection of realistic deformation modulus for the rock mass. The third goal of the study was to investigate the effect of testing plate diameter on the calculated modulus. Moreover, a comparison of the calculated modulus from ISRM formula, numerical modeling and calculated modulus from the actual PLT carried out at right abutment of the Bazoft dam site was another objective of the study. Finally, the effect of plastic strains on the calculated moduli in each of the loading-unloading cycles for three loading plates was investigated. The geometry, material properties, and boundary conditions on the constructed 3D model were selected based on the in-situ conditions of PLT at Bazoft dam site. A good agreement was achieved between numerical model results and the field tests results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=deformation%20modulus" title="deformation modulus">deformation modulus</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20model" title=" numerical model"> numerical model</a>, <a href="https://publications.waset.org/abstracts/search?q=plate%20loading%20test" title=" plate loading test"> plate loading test</a>, <a href="https://publications.waset.org/abstracts/search?q=rock%20mass" title=" rock mass"> rock mass</a> </p> <a href="https://publications.waset.org/abstracts/81800/numerical-modeling-of-determination-of-in-situ-rock-mass-deformation-modulus-using-the-plate-load-test" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81800.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">170</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8</span> Development of a Geomechanical Risk Assessment Model for Underground Openings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ali%20Mortazavi">Ali Mortazavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main objective of this research project is to delve into a multitude of geomechanical risks associated with various mining methods employed within the underground mining industry. Controlling geotechnical design parameters and operational factors affecting the selection of suitable mining techniques for a given underground mining condition will be considered from a risk assessment point of view. Important geomechanical challenges will be investigated as appropriate and relevant to the commonly used underground mining methods. Given the complicated nature of rock mass in-situ and complicated boundary conditions and operational complexities associated with various underground mining methods, the selection of a safe and economic mining operation is of paramount significance. Rock failure at varying scales within the underground mining openings is always a threat to mining operations and causes human and capital losses worldwide. Geotechnical design is a major design component of all underground mines and basically dominates the safety of an underground mine. With regard to uncertainties that exist in rock characterization prior to mine development, there are always risks associated with inappropriate design as a function of mining conditions and the selected mining method. Uncertainty often results from the inherent variability of rock masse, which in turn is a function of both geological materials and rock mass in-situ conditions. The focus of this research is on developing a methodology which enables a geomechanical risk assessment of given underground mining conditions. The outcome of this research is a geotechnical risk analysis algorithm, which can be used as an aid in selecting the appropriate mining method as a function of mine design parameters (e.g., rock in-situ properties, design method, governing boundary conditions such as in-situ stress and groundwater, etc.). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=geomechanical%20risk%20assessment" title="geomechanical risk assessment">geomechanical risk assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=rock%20mechanics" title=" rock mechanics"> rock mechanics</a>, <a href="https://publications.waset.org/abstracts/search?q=underground%20mining" title=" underground mining"> underground mining</a>, <a href="https://publications.waset.org/abstracts/search?q=rock%20engineering" title=" rock engineering"> rock engineering</a> </p> <a href="https://publications.waset.org/abstracts/134743/development-of-a-geomechanical-risk-assessment-model-for-underground-openings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/134743.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">145</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">7</span> Explaining the Role of Iran Health System in Polypharmacy among the Elderly</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohsen%20Shati">Mohsen Shati</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyede%20Salehe%20Mortazavi"> Seyede Salehe Mortazavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Kazem%20Malakouti"> Seyed Kazem Malakouti</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamidreza%20Khanke%20Fazlollah%20Ahmadi"> Hamidreza Khanke Fazlollah Ahmadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Taking unnecessary or excessive medication or using drugs with no indication (polypharmacy) by people of all ages, especially the elderly, is associated with increased adverse drug reactions (ADR), medical errors, hospitalization and escalating the costs. It may be facilitated or impeded by the healthcare system. In this study, we are going to describe the role of the health system in the practice of polypharmacy in Iranian elderly. In this Inductive qualitative content analysis using Graneheim and Lundman methods, purposeful sample selection until saturation has been made. Participants have been selected from doctors, pharmacists, policy-makers and the elderly. A total of 25 persons (9 men and 16 women) have participated in this study. Data analysis after incorporating codes with similar characteristics revealed 14 subcategories and six main categories of the referral system, physicians’ accessibility, health data management, drug market, laws enforcement, and social protection. Some of the conditions of the healthcare system have given rise to polypharmacy in the elderly. In the absence of a comprehensive specialty and subspecialty referral system, patients may go to any physician office so may well be confused about numerous doctors' prescriptions. Electronic records not being prepared for the patients, failure to comply with laws, lack of robust enforcement for the existing laws and close surveillance are among the contributing factors. Inadequate insurance and supportive services are also evident. Age-specific care providing has not yet been institutionalized, while, inadequate specialist workforce playing a major role. So, one may not ignore the health system as contributing factor in designing effective interventions to fix the problem. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=elderly" title="elderly">elderly</a>, <a href="https://publications.waset.org/abstracts/search?q=polypharmacy" title=" polypharmacy"> polypharmacy</a>, <a href="https://publications.waset.org/abstracts/search?q=health%20system" title=" health system"> health system</a>, <a href="https://publications.waset.org/abstracts/search?q=qualitative%20study" title=" qualitative study"> qualitative study</a> </p> <a href="https://publications.waset.org/abstracts/95591/explaining-the-role-of-iran-health-system-in-polypharmacy-among-the-elderly" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/95591.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">151</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">6</span> Investigating the Relationship Between the Auditor’s Personality Type and the Quality of Financial Reporting in Companies Listed on the Tehran Stock Exchange</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyedmohsen%20Mortazavi">Seyedmohsen Mortazavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this research is to investigate the personality types of internal auditors on the quality of financial reporting in companies admitted to the Tehran Stock Exchange. Personality type is one of the issues that emphasizes the field of auditors' behavior, and this field has attracted the attention of shareholders and stock companies today, because the auditors' personality can affect the type of financial reporting and its quality. The research is applied in terms of purpose and descriptive and correlational in terms of method, and a researcher-made questionnaire was used to check the research hypotheses. The statistical population of the research is all the auditors, accountants and financial managers of the companies admitted to the Tehran Stock Exchange, and due to their large number and the uncertainty of their exact number, 384 people have been considered as a statistical sample using Morgan's table. The researcher-made questionnaire was approved by experts in the field, and then its validity and reliability were obtained using software. For the validity of the questionnaire, confirmatory factor analysis was first examined, and then using divergent and convergent validity; Fornell-Larker and cross-sectional load test of the validity of the questionnaire were confirmed; Then, the reliability of the questionnaire was examined using Cronbach's alpha and composite reliability, and the results of these two tests showed the appropriate reliability of the questionnaire. After checking the validity and reliability of the research hypotheses, PLS software was used to check the hypotheses. The results of the research showed that the personalities of internal auditors can affect the quality of financial reporting; The personalities investigated in this research include neuroticism, extroversion, flexibility, agreeableness and conscientiousness, all of these personality types can affect the quality of financial reporting. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=flexibility" title="flexibility">flexibility</a>, <a href="https://publications.waset.org/abstracts/search?q=quality%20of%20financial%20reporting" title=" quality of financial reporting"> quality of financial reporting</a>, <a href="https://publications.waset.org/abstracts/search?q=agreeableness" title=" agreeableness"> agreeableness</a>, <a href="https://publications.waset.org/abstracts/search?q=conscientiousness" title=" conscientiousness"> conscientiousness</a> </p> <a href="https://publications.waset.org/abstracts/158700/investigating-the-relationship-between-the-auditors-personality-type-and-the-quality-of-financial-reporting-in-companies-listed-on-the-tehran-stock-exchange" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158700.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">102</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">5</span> Bioinformatics Identification of Rare Codon Clusters in Proteins Structure of HBV</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdorrasoul%20Malekpour">Abdorrasoul Malekpour</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Ghorbani%20Mojtaba%20Mortazavi"> Mohammad Ghorbani Mojtaba Mortazavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammadreza%20Fattahi"> Mohammadreza Fattahi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Hassan%20Meshkibaf"> Mohammad Hassan Meshkibaf</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Fakhrzad"> Ali Fakhrzad</a>, <a href="https://publications.waset.org/abstracts/search?q=Saeid%20Salehi"> Saeid Salehi</a>, <a href="https://publications.waset.org/abstracts/search?q=Saeideh%20Zahedi"> Saeideh Zahedi</a>, <a href="https://publications.waset.org/abstracts/search?q=Amir%20Ahmadimoghaddam"> Amir Ahmadimoghaddam</a>, <a href="https://publications.waset.org/abstracts/search?q=Parviz%20Farzadnia%20Dr."> Parviz Farzadnia Dr.</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammadreza%20Hajyani%20Asl%20Bs"> Mohammadreza Hajyani Asl Bs</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Hepatitis B as an infectious disease has eight main genotypes (A–H). The aim of this study is to Bioinformatically identify Rare Codon Clusters (RCC) in proteins structure of HBV. For detection of protein family accession numbers (Pfam) of HBV proteins; used of uni-prot database and Pfam search tool were used. Obtained Pfam IDs were analyzed in Sherlocc program and RCCs in HBV proteins were detected. In further, the structures of TrEMBL entries proteins studied in PDB database and 3D structures of the HBV proteins and locations of RCCs were visualized and studied using Swiss PDB Viewer software. Pfam search tool have found nine significant hits and 0 insignificant hits in 3 frames. Results of Pfams studied in the Sherlocc program show this program not identified RCCs in the external core antigen (PF08290) and truncated HBeAg protein (PF08290). By contrast the RCCs become identified in Hepatitis core antigen (PF00906) Large envelope protein S (PF00695), X protein (PF00739), DNA polymerase (viral) N-terminal domain (PF00242) and Protein P (Pf00336). In HBV genome, seven RCC identified that found in hepatitis core antigen, large envelope protein S and DNA polymerase proteins and proteins structures of TrEMBL entries sequences that reported in Sherlocc program outputs are not complete. Based on situation of RCC in structure of HBV proteins, it suggested those RCCs are important in HBV life cycle. We hoped that this study provide a new and deep perspective in protein research and drug design for treatment of HBV. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rare%20codon%20clusters" title="rare codon clusters">rare codon clusters</a>, <a href="https://publications.waset.org/abstracts/search?q=hepatitis%20B%20virus" title=" hepatitis B virus"> hepatitis B virus</a>, <a href="https://publications.waset.org/abstracts/search?q=bioinformatic%20study" title=" bioinformatic study"> bioinformatic study</a>, <a href="https://publications.waset.org/abstracts/search?q=infectious%20disease" title=" infectious disease "> infectious disease </a> </p> <a href="https://publications.waset.org/abstracts/24687/bioinformatics-identification-of-rare-codon-clusters-in-proteins-structure-of-hbv" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24687.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">488</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">4</span> Formation of ZnS/ZnO Heterojunction for Photocatalytic Hydrogen Evolution Using Partial Oxidation and Chemical Precipitation Synthesis Methods</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saba%20Didarataee">Saba Didarataee</a>, <a href="https://publications.waset.org/abstracts/search?q=Abbas%20Ali%20Khodadadi"> Abbas Ali Khodadadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Yadollah%20Mortazavi"> Yadollah Mortazavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatemeh%20Mousavi"> Fatemeh Mousavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Photocatalytic water splitting is one of the most attractive alternative methods for hydrogen evolution. A variety of nanoparticle engineering techniques were introduced to improve the activity of semiconductor photocatalysts. Among these methods, heterojunction formation is an appealing method due to its ability to effectively preventing electron-hole recombination and improving photocatalytic activity. Reaching an optimal ratio of the two target semiconductors for the formation of heterojunctions is still an open question. Considering environmental issues as well as the cost and availability, ZnS and ZnO are frequently studied as potential choices. In this study, first, the ZnS nanoparticle was synthesized in a hydrothermal process; the formation of ZnS nanorods with a diameter of 14-30 nm was confirmed by field emission scanning electron microscope (FESEM). Then two different methods, partial oxidation and chemical precipitation were employed to construct ZnS/ZnO core-shell heterojunction. X-ray diffraction (XRD), BET, and diffuse reflectance spectroscopy (DRS) analysis were carried out to determine crystallite phase, surface area, and bandgap of photocatalysts. Furthermore, the temperature of oxidation was specified by a temperature programmed oxidation (TPO) and was fixed at 510℃, at which mild oxidation occurred. The bandgap was calculated by the Kubelka-Munk method and decreased by increasing oxide content from 3.53 (pure ZnS) to 3.18 (pure ZnO). The optimal samples were determined by testing the photocatalytic activity of hydrogen evolution in a quartz photoreactor with side irradiation of UVC lamps with a wavelength of 254 nm. In both procedures, it was observed that the photocatalytic activity of the ZnS/ZnO composite was sensibly higher than the pure ZnS and ZnO, which is attributed to forming a type-II heterostructure. The best ratio of oxide to sulfide was 0.24 and 0.37 in partial oxidation and chemical precipitation, respectively. The highest hydrogen evolution was 1081 µmol/gr.h, gained from partial oxidizing of ZnS nanoparticles at 510℃ for 30 minutes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heterostructure" title="heterostructure">heterostructure</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrogen" title=" hydrogen"> hydrogen</a>, <a href="https://publications.waset.org/abstracts/search?q=partial%20oxidation" title=" partial oxidation"> partial oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=photocatalyst" title=" photocatalyst"> photocatalyst</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20splitting" title=" water splitting"> water splitting</a>, <a href="https://publications.waset.org/abstracts/search?q=ZnS" title=" ZnS"> ZnS</a> </p> <a href="https://publications.waset.org/abstracts/134352/formation-of-znszno-heterojunction-for-photocatalytic-hydrogen-evolution-using-partial-oxidation-and-chemical-precipitation-synthesis-methods" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/134352.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">128</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 Numerical Investigation of Segmental Lining Joints Interactions in Tunnels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20H.%20Ahmadi">M. H. Ahmadi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Mortazavi"> A. Mortazavi</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Zarei"> H. Zarei</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Several authors have described the main mechanism of formation of cracks in the segment lining during the construction of tunnels with tunnel boring machines. A comprehensive analysis of segmental lining joints may help to guarantee a safe construction during Tunneling and serviceable stages. The most frequent types of segment damage are caused by a condition of uneven segment matching due to contact deficiencies. This paper investigated the interaction mechanism of precast concrete lining joints in tunnels. The Discrete Element Method (DEM) was used to analyze a typical segmental lining model consisting of six segment rings. In the analyses, typical segmental lining design parameters of the Ghomrood water conveyance tunnel, Iran were employed in the study. In the conducted analysis, the worst-case scenario of loading faced during the boring of Ghomrood tunnel was considered. This was associated with the existence of a crushed zone dipping at 75 degree at the location of the key segment. In the analysis, moreover, the effect of changes in horizontal stress ratio on the loads on the segment was assessed. The boundary condition associated with K (ratio of the horizontal to the vertical stress) values of 0.5, 1, 1.5 and 2 were applied to the model and separate analysis was conducted for each case. Important parameters such as stress, moments, and displacements were measured at joint locations and the surrounding rock. Accordingly, the segment joint interactions were assessed and analyzed. Moreover, rock mass properties of the Ghomrood in Ghom were adopted. In this study, the load acting on segments joints are included a crushed zone stratum force that intersect tunnel with 75 slopes in the location of the key segment, gravity force of segments and earth pressures. A numerical investigation was used for different coefficients of stress concentration of 0.5, 1, 1.5, 2 and different geological conditions of saturated crushed zone under the critical scenario. The numerical results also demonstrate that maximum bending moments in longitudinal joints occurred for crushed zone with the weaken strengths (Sandstone). Besides that, increasing the load in segment-stratum interfaces affected radial stress in longitudinal joints and finally the opening of joints occurred. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=joint" title="joint">joint</a>, <a href="https://publications.waset.org/abstracts/search?q=interface" title=" interface"> interface</a>, <a href="https://publications.waset.org/abstracts/search?q=segment" title=" segment"> segment</a>, <a href="https://publications.waset.org/abstracts/search?q=contact" title=" contact"> contact</a> </p> <a href="https://publications.waset.org/abstracts/38469/a-numerical-investigation-of-segmental-lining-joints-interactions-in-tunnels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38469.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">258</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> Assessment of the Efficacy of Routine Medical Tests in Screening Medical Radiation Staff in Shiraz University of Medical Sciences Educational Centers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Z.%20Razi">Z. Razi</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20M.%20J.%20Mortazavi"> S. M. J. Mortazavi</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Shokrpour"> N. Shokrpour</a>, <a href="https://publications.waset.org/abstracts/search?q=Z.%20Shayan"> Z. Shayan</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Amiri"> F. Amiri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Long-term exposure to low doses of ionizing radiation occurs in radiation health care workplaces. Although doses in health professions are generally very low, there are still matters of concern. The radiation safety program promotes occupational radiation safety through accurate and reliable monitoring of radiation workers in order to effectively manage radiation protection. To achieve this goal, it has become mandatory to implement health examination periodically. As a result, based on the hematological alterations, working populations with a common occupational radiation history are screened. This paper calls into question the effectiveness of blood component analysis as a screening program which is mandatory for medical radiation workers in some countries. This study details the distribution and trends of changes in blood components, including white blood cells (WBCs), red blood cells (RBCs) and platelets as well as received cumulative doses from occupational radiation exposure. This study was conducted among 199 participants and 100 control subjects at the medical imaging departments at the central hospital of Shiraz University of Medical Sciences during the years 2006–2010. Descriptive and analytical statistics, considering the P-value<0.05 as statistically significance was used for data analysis. The results of this study show that there is no significant difference between the radiation workers and controls regarding WBCs and platelet count during 4 years. Also, we have found no statistically significant difference between the two groups with respect to RBCs. Besides, no statistically significant difference was observed with respect to RBCs with regards to gender, which has been analyzed separately because of the lower reference range for normal RBCs levels in women compared to men and. Moreover, the findings confirm that in a separate evaluation between WBCs count and the personnel’s working experience and their annual exposure dose, results showed no linear correlation between the three variables. Since the hematological findings were within the range of control levels, it can be concluded that the radiation dosage (which was not more than 7.58 mSv in this study) had been too small to stimulate any quantifiable change in medical radiation worker’s blood count. Thus, use of more accurate method for screening program based on the working profile of the radiation workers and their accumulated dose is suggested. In addition, complexity of radiation-induced functions and the influence of various factors on blood count alteration should be taken into account. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=blood%20cell%20count" title="blood cell count">blood cell count</a>, <a href="https://publications.waset.org/abstracts/search?q=mandatory%20testing" title=" mandatory testing"> mandatory testing</a>, <a href="https://publications.waset.org/abstracts/search?q=occupational%20exposure" title=" occupational exposure"> occupational exposure</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation" title=" radiation"> radiation</a> </p> <a href="https://publications.waset.org/abstracts/14487/assessment-of-the-efficacy-of-routine-medical-tests-in-screening-medical-radiation-staff-in-shiraz-university-of-medical-sciences-educational-centers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14487.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">461</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> Nanoparticle Supported, Magnetically Separable Metalloporphyrin as an Efficient Retrievable Heterogeneous Nanocatalyst in Oxidation Reactions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Anahita%20Mortazavi%20Manesh">Anahita Mortazavi Manesh</a>, <a href="https://publications.waset.org/abstracts/search?q=Mojtaba%20Bagherzadeh"> Mojtaba Bagherzadeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Metalloporphyrins are well known to mimic the activity of monooxygenase enzymes. In this regard, metalloporphyrin complexes have been largely employed as valuable biomimetic catalysts, owing to the critical roles they play in oxygen transfer processes in catalytic oxidation reactions. Investigating in this area is based on different strategies to design selective, stable and high turnover catalytic systems. Immobilization of expensive metalloporphyrin catalysts onto supports appears to be a good way to improve their stability, selectivity and the catalytic performance because of the support environment and other advantages with respect to recovery, reuse. In other words, supporting metalloporphyrins provides a physical separation of active sites, thus minimizing catalyst self-destruction and dimerization of unhindered metalloporphyrins. Furthermore, heterogeneous catalytic oxidations have become an important target since their process are used in industry, helping to minimize the problems of industrial waste treatment. Hence, the immobilization of these biomimetic catalysts is much desired. An attractive approach is the preparation of the heterogeneous catalyst involves immobilization of complexes on silica coated magnetic nano-particles. Fe3O4@SiO2 magnetic nanoparticles have been studied extensively due to their superparamagnetism property, large surface area to volume ratio and easy functionalization. Using heterogenized homogeneous catalysts is an attractive option to facile separation of catalyst, simplified product work-up and continuity of catalytic system. Homogeneous catalysts immobilized on magnetic nanoparticles (MNPs) surface occupy a unique position due to combining the advantages of both homogeneous and heterogeneous catalysts. In addition, superparamagnetic nature of MNPs enable very simple separation of the immobilized catalysts from the reaction mixture using an external magnet. In the present work, an efficient heterogeneous catalyst was prepared by immobilizing manganese porphyrin on functionalized magnetic nanoparticles through the amino propyl linkage. The prepared catalyst was characterized by elemental analysis, FT-IR spectroscopy, X-ray powder diffraction, atomic absorption spectroscopy, UV-Vis spectroscopy, and scanning electron microscopy. Application of immobilized metalloporphyrin in the oxidation of various organic substrates was explored using Gas chromatographic (GC) analyses. The results showed that the supported Mn-porphyrin catalyst (Fe3O4@SiO2-NH2@MnPor) is an efficient and reusable catalyst in oxidation reactions. Our catalytic system exhibits high catalytic activity in terms of turnover number (TON) and reaction conditions. Leaching and recycling experiments revealed that nanocatalyst can be recovered several times without loss of activity and magnetic properties. The most important advantage of this heterogenized catalytic system is the simplicity of the catalyst separation in which the catalyst can be separated from the reaction mixture by applying a magnet. Furthermore, the separation and reuse of the magnetic Fe3O4 nanoparticles were very effective and economical. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fe3O4%20nanoparticle" title="Fe3O4 nanoparticle">Fe3O4 nanoparticle</a>, <a href="https://publications.waset.org/abstracts/search?q=immobilized%20metalloporphyrin" title=" immobilized metalloporphyrin"> immobilized metalloporphyrin</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetically%20separable%20nanocatalyst" title=" magnetically separable nanocatalyst"> magnetically separable nanocatalyst</a>, <a href="https://publications.waset.org/abstracts/search?q=oxidation%20reactions" title=" oxidation reactions"> oxidation reactions</a> </p> <a href="https://publications.waset.org/abstracts/35217/nanoparticle-supported-magnetically-separable-metalloporphyrin-as-an-efficient-retrievable-heterogeneous-nanocatalyst-in-oxidation-reactions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35217.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">299</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" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th foundational anniversary</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Account <li><a href="https://waset.org/profile">My Account</a></li> </ul> </div> <div class="col-md-2"> 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