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Nikkhahi</title> <meta name="description" content="Search results for: Farhad Nikkhahi"> <meta name="keywords" content="Farhad Nikkhahi"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Farhad Nikkhahi"> <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> 67</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Farhad Nikkhahi</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">67</span> Use of a New Multiplex Quantitative Polymerase Chain Reaction Based Assay for Simultaneous Detection of Neisseria Meningitidis, Escherichia Coli K1, Streptococcus agalactiae, and Streptococcus pneumoniae</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nastaran%20Hemmati">Nastaran Hemmati</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Nikkhahi"> Farhad Nikkhahi</a>, <a href="https://publications.waset.org/abstracts/search?q=Amir%20Javadi"> Amir Javadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sahar%20Eskandarion"> Sahar Eskandarion</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Mahmuod%20%20Amin%20Marashi"> Seyed Mahmuod Amin Marashi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Neisseria meningitidis, Escherichia coli K, Streptococcus agalactiae, and Streptococcus pneumoniae cause 90% of bacterial meningitis. Almost all infected people die or have irreversible neurological complications. Therefore, it is essential to have a diagnostic kit with the ability to quickly detect these fatal infections. The project involved 212 patients from whom cerebrospinal fluid samples were obtained. After total genome extraction and performing multiplex quantitative polymerase chain reaction (qPCR), the presence or absence of each infectious factor was determined by comparing with standard strains. The specificity, sensitivity, positive predictive value, and negative predictive value calculated were 100%, 92.9%, 50%, and 100%, respectively. So, due to the high specificity and sensitivity of the designed primers, they can be used instead of bacterial culture that takes at least 24 to 48 hours. The remarkable benefit of this method is associated with the speed (up to 3 hours) at which the procedure could be completed. It is also worth noting that this method can reduce the personnel unintentional errors which may occur in the laboratory. On the other hand, as this method simultaneously identifies four common factors that cause bacterial meningitis, it could be used as an auxiliary method diagnostic technique in laboratories particularly in cases of emergency medicine. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cerebrospinal%20fluid" title="cerebrospinal fluid">cerebrospinal fluid</a>, <a href="https://publications.waset.org/abstracts/search?q=meningitis" title=" meningitis"> meningitis</a>, <a href="https://publications.waset.org/abstracts/search?q=quantitative%20polymerase%20chain%20reaction" title=" quantitative polymerase chain reaction"> quantitative polymerase chain reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=simultaneous%20detection" title=" simultaneous detection"> simultaneous detection</a>, <a href="https://publications.waset.org/abstracts/search?q=diagnosis%20testing" title=" diagnosis testing"> diagnosis testing</a> </p> <a href="https://publications.waset.org/abstracts/151315/use-of-a-new-multiplex-quantitative-polymerase-chain-reaction-based-assay-for-simultaneous-detection-of-neisseria-meningitidis-escherichia-coli-k1-streptococcus-agalactiae-and-streptococcus-pneumoniae" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/151315.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">115</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">66</span> Challenges in E-Government: Conceptual Views and Solutions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rasim%20Alguliev">Rasim Alguliev</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Yusifov"> Farhad Yusifov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Considering the international experience, conceptual and architectural principles of forming of electron government are researched and some suggestions were made. The assessment of monitoring of forming processes of electron government, intellectual analysis of web-resources, provision of information security, electron democracy problems were researched, conceptual approaches were suggested. By taking into consideration main principles of electron government theory, important research directions were specified. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electron%20government" title="electron government">electron government</a>, <a href="https://publications.waset.org/abstracts/search?q=public%20administration" title=" public administration"> public administration</a>, <a href="https://publications.waset.org/abstracts/search?q=information%20security" title=" information security"> information security</a>, <a href="https://publications.waset.org/abstracts/search?q=web-analytics" title=" web-analytics"> web-analytics</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20networks" title=" social networks"> social networks</a>, <a href="https://publications.waset.org/abstracts/search?q=data%20mining" title=" data mining"> data mining</a> </p> <a href="https://publications.waset.org/abstracts/17703/challenges-in-e-government-conceptual-views-and-solutions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17703.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">473</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">65</span> The Effect of Measurement Distribution on System Identification and Detection of Behavior of Nonlinearities of Data</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Javad%20Mollakazemi">Mohammad Javad Mollakazemi</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Asadi"> Farhad Asadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Aref%20Ghafouri"> Aref Ghafouri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we considered and applied parametric modeling for some experimental data of dynamical system. In this study, we investigated the different distribution of output measurement from some dynamical systems. Also, with variance processing in experimental data we obtained the region of nonlinearity in experimental data and then identification of output section is applied in different situation and data distribution. Finally, the effect of the spanning the measurement such as variance to identification and limitation of this approach is explained. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gaussian%20process" title="Gaussian process">Gaussian process</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinearity%20distribution" title=" nonlinearity distribution"> nonlinearity distribution</a>, <a href="https://publications.waset.org/abstracts/search?q=particle%20filter" title=" particle filter"> particle filter</a>, <a href="https://publications.waset.org/abstracts/search?q=system%20identification" title=" system identification"> system identification</a> </p> <a href="https://publications.waset.org/abstracts/17632/the-effect-of-measurement-distribution-on-system-identification-and-detection-of-behavior-of-nonlinearities-of-data" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17632.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">516</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">64</span> The Evaluation of the Performance of Different Filtering Approaches in Tracking Problem and the Effect of Noise Variance </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Javad%20Mollakazemi">Mohammad Javad Mollakazemi</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Asadi"> Farhad Asadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Aref%20Ghafouri"> Aref Ghafouri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Performance of different filtering approaches depends on modeling of dynamical system and algorithm structure. For modeling and smoothing the data the evaluation of posterior distribution in different filtering approach should be chosen carefully. In this paper different filtering approaches like filter KALMAN, EKF, UKF, EKS and smoother RTS is simulated in some trajectory tracking of path and accuracy and limitation of these approaches are explained. Then probability of model with different filters is compered and finally the effect of the noise variance to estimation is described with simulations results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gaussian%20approximation" title="Gaussian approximation">Gaussian approximation</a>, <a href="https://publications.waset.org/abstracts/search?q=Kalman%20smoother" title=" Kalman smoother"> Kalman smoother</a>, <a href="https://publications.waset.org/abstracts/search?q=parameter%20estimation" title=" parameter estimation"> parameter estimation</a>, <a href="https://publications.waset.org/abstracts/search?q=noise%20variance" title=" noise variance"> noise variance</a> </p> <a href="https://publications.waset.org/abstracts/14553/the-evaluation-of-the-performance-of-different-filtering-approaches-in-tracking-problem-and-the-effect-of-noise-variance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14553.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">439</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">63</span> An Empirical Investigation of Relationships between Consumer Involvement and Advertisement Effectiveness </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nasim%20Karami%20Mal%20Amiri">Nasim Karami Mal Amiri</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Razm%20Azma"> Farhad Razm Azma</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Parts of consumer involvement in regards to one product are related to advertisement strategies. Different consumer involvement has different answers to the effectiveness of advertisement. This study has divided the market considering the characteristics and relationship between consumer involvement and the effectiveness of advertisement. The results of this study show consumer involvement which does affect parts of marketing. A positive and direct relationship among consumer involvement and the eventual effectiveness of advertisement has been shown. A great amount of consumer involvement is directly related to advertisement effectiveness. Therefore, consumer involvement is a critical factor in advertisement strategies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=consumer%20involvement" title="consumer involvement">consumer involvement</a>, <a href="https://publications.waset.org/abstracts/search?q=advertisement%20effectiveness" title=" advertisement effectiveness"> advertisement effectiveness</a>, <a href="https://publications.waset.org/abstracts/search?q=strategy" title=" strategy"> strategy</a>, <a href="https://publications.waset.org/abstracts/search?q=effective%20marketing" title=" effective marketing "> effective marketing </a> </p> <a href="https://publications.waset.org/abstracts/13105/an-empirical-investigation-of-relationships-between-consumer-involvement-and-advertisement-effectiveness" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13105.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">456</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">62</span> A High Quality Factor Filter Based on Quasi- Periodic Photonic Structure</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamed%20Alipour-Banaei">Hamed Alipour-Banaei</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Mehdizadeh"> Farhad Mehdizadeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We report the design and characterization of ultra high quality factor filter based on one-dimensional photonic-crystal Thue-Morse sequence structure. The behavior of aperiodic array of photonic crystal structure is numerically investigated and we show that by changing the angle of incident wave, desired wavelengths could be tuned and a tunable filter is realized. Also it is shown that high quality factor filter be achieved in the telecommunication window around 1550 nm, with a device based on Thue-Morse structure. Simulation results show that the proposed structure has a quality factor more than 100000 and it is suitable for DWDM communication applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Thue-Morse" title="Thue-Morse">Thue-Morse</a>, <a href="https://publications.waset.org/abstracts/search?q=filter" title=" filter"> filter</a>, <a href="https://publications.waset.org/abstracts/search?q=quality%20factor" title=" quality factor"> quality factor</a>, <a href="https://publications.waset.org/abstracts/search?q=photonic" title=" photonic"> photonic</a> </p> <a href="https://publications.waset.org/abstracts/31621/a-high-quality-factor-filter-based-on-quasi-periodic-photonic-structure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31621.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">572</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">61</span> Real Time Adaptive Obstacle Avoidance in Dynamic Environments with Different D-S</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Javad%20Mollakazemi">Mohammad Javad Mollakazemi</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Asadi"> Farhad Asadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper a real-time obstacle avoidance approach for both autonomous and non-autonomous dynamical systems (DS) is presented. In this approach the original dynamics of the controller which allow us to determine safety margin can be modulated. Different common types of DS increase the robot’s reactiveness in the face of uncertainty in the localization of the obstacle especially when robot moves very fast in changeable complex environments. The method is validated by simulation and influence of different autonomous and non-autonomous DS such as important characteristics of limit cycles and unstable DS. Furthermore, the position of different obstacles in complex environment is explained. Finally, the verification of avoidance trajectories is described through different parameters such as safety factor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=limit%20cycles" title="limit cycles">limit cycles</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear%20dynamical%20system" title=" nonlinear dynamical system"> nonlinear dynamical system</a>, <a href="https://publications.waset.org/abstracts/search?q=real%20time%20obstacle%20avoidance" title=" real time obstacle avoidance"> real time obstacle avoidance</a>, <a href="https://publications.waset.org/abstracts/search?q=safety%20margin" title=" safety margin"> safety margin</a> </p> <a href="https://publications.waset.org/abstracts/18168/real-time-adaptive-obstacle-avoidance-in-dynamic-environments-with-different-d-s" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18168.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">443</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">60</span> Simulation of Remove the Fouling on the in vivo By Using MHD </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Aalizadeh">Farhad Aalizadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Moosavi"> Ali Moosavi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> When a blood vessel is injured, the cells of your blood bond together to form a blood clot. The blood clot helps you stop bleeding. Blood clots are made of a combination of blood cells, platelets(small sticky cells that speed up the clot-making process), and fibrin (protein that forms a thread-like mesh to trap cells). Doctors call this kind of blood clot a “thrombus.”We study the effects of different parameters on the deposition of Nanoparticles on the surface of a bump in the blood vessels by the magnetic field. The Maxwell and the flow equations are solved for this purpose. It is assumed that the blood is non-Newtonian and the number of particles has been considered enough to rely on the results statistically. Using MHD and its property it is possible to control the flow velocity, remove the fouling on the walls and return the system to its original form. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=MHD" title="MHD">MHD</a>, <a href="https://publications.waset.org/abstracts/search?q=fouling" title=" fouling"> fouling</a>, <a href="https://publications.waset.org/abstracts/search?q=in-vivo" title=" in-vivo"> in-vivo</a>, <a href="https://publications.waset.org/abstracts/search?q=blood%20clots" title=" blood clots"> blood clots</a>, <a href="https://publications.waset.org/abstracts/search?q=simulation" title=" simulation"> simulation</a> </p> <a href="https://publications.waset.org/abstracts/14099/simulation-of-remove-the-fouling-on-the-in-vivo-by-using-mhd" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14099.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">59</span> From Linear to Nonlinear Deterrence: Deterrence for Rising Power</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Ghasemi">Farhad Ghasemi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Along with transforming the international system into a complex and chaotic system, the fundamental question arises: how can deterrence be reconstructed conceptually and theoretically in this system model? The deterrence system is much more complex today than it was seven decades ago. This article suggests that the perception of deterrence as a linear system is a fundamental mistake because it does not consider the new dynamics of the international system, including network power dynamics. The author aims to improve this point by focusing on complexity and chaos theories, especially their nonlinearity and cascading failure principles. This article proposes that the perception of deterrence as a linear system is a fundamental mistake, as the new dynamics of the surrounding international system do not take into account. The author recognizes deterrence as a nonlinear system and introduces it as a concept in strategic studies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=complexity" title="complexity">complexity</a>, <a href="https://publications.waset.org/abstracts/search?q=international%20system" title=" international system"> international system</a>, <a href="https://publications.waset.org/abstracts/search?q=deterrence" title=" deterrence"> deterrence</a>, <a href="https://publications.waset.org/abstracts/search?q=linear%20deterrence" title=" linear deterrence"> linear deterrence</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear%20deterrence" title=" nonlinear deterrence"> nonlinear deterrence</a> </p> <a href="https://publications.waset.org/abstracts/148226/from-linear-to-nonlinear-deterrence-deterrence-for-rising-power" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148226.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">142</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">58</span> Sustainability of Offshore Petroleum Resources Extraction and Management of Bangladesh: International and Regional Frameworks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Farhad%20Hosen">Muhammad Farhad Hosen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article examines the sustainability of offshore petroleum resource extraction and management in Bangladesh, focusing on international and regional frameworks. The analysis includes international conventions such as UNCLOS, IMO regulations, and SDGs, as well as regional cooperation through organizations like BIMSTEC and SAARC. The objective is to highlight the impact of these frameworks on sustainable extraction practices, address challenges, and offer recommendations for enhancing Bangladesh's legal and regulatory approaches to offshore resource management. The article underscores the need for harmonizing national laws with international standards, enhancing enforcement mechanisms, and promoting regional cooperation to ensure sustainable development. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bangladesh" title="Bangladesh">Bangladesh</a>, <a href="https://publications.waset.org/abstracts/search?q=international%20frameworks" title=" international frameworks"> international frameworks</a>, <a href="https://publications.waset.org/abstracts/search?q=offshore%20petroleum" title=" offshore petroleum"> offshore petroleum</a>, <a href="https://publications.waset.org/abstracts/search?q=regional%20framework" title=" regional framework"> regional framework</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainability" title=" sustainability"> sustainability</a> </p> <a href="https://publications.waset.org/abstracts/191015/sustainability-of-offshore-petroleum-resources-extraction-and-management-of-bangladesh-international-and-regional-frameworks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/191015.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">28</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">57</span> Ranking All of the Efficient DMUs in DEA</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Elahe%20Sarfi">Elahe Sarfi</a>, <a href="https://publications.waset.org/abstracts/search?q=Esmat%20Noroozi"> Esmat Noroozi</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Hosseinzadeh%20Lotfi"> Farhad Hosseinzadeh Lotfi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the important issues in Data Envelopment Analysis is the ranking of Decision Making Units. In this paper, a method for ranking DMUs is presented through which the weights related to efficient units should be chosen in a way that the other units preserve a certain percentage of their efficiency with the mentioned weights. To this end, a model is presented for ranking DMUs on the base of their superefficiency by considering the mentioned restrictions related to weights. This percentage can be determined by decision Maker. If the specific percentage is unsuitable, we can find a suitable and feasible one for ranking DMUs accordingly. Furthermore, the presented model is capable of ranking all of the efficient units including nonextreme efficient ones. Finally, the presented models are utilized for two sets of data and related results are reported. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=data%20envelopment%20analysis" title="data envelopment analysis">data envelopment analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency" title=" efficiency"> efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=ranking" title=" ranking"> ranking</a>, <a href="https://publications.waset.org/abstracts/search?q=weight" title=" weight "> weight </a> </p> <a href="https://publications.waset.org/abstracts/30482/ranking-all-of-the-efficient-dmus-in-dea" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30482.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">456</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">56</span> Blindness and Deafness, the Outcomes of Varicella Zoster Virus Encephalitis in HIV Positive Patient </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hadiseh%20Hosamirudsari">Hadiseh Hosamirudsari</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Afsarikordehmahin"> Farhad Afsarikordehmahin</a>, <a href="https://publications.waset.org/abstracts/search?q=Pooria%20Sekhavatfar"> Pooria Sekhavatfar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Concomitant cortical blindness and deafness that follow varicella zoster virus (VZV) infection is rare. We describe a case of ophthalmic zoster that caused cortical blindness and deafness after central nervous system (CNS) involvement. A 42-year old, HIV infected woman has developed progressive blurry vision and deafness, 4 weeks after ophthalmic zoster. A physical examination and positive VZV polymerase chain reaction (PCR) of cerebrospinal fluid (CSF) suggested VZV encephalitis. Complication of VZV encephalitis is considered as the cause of blindness and deafness. In neurological deficit patient especially with a history of herpes zoster, VZV infection should be regarded as the responsible agent in inflammatory disorders of nervous system. The immunocompromised state of patient (including HIV) is as important an agent as VZV infection in developing the disease. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=blindness" title="blindness">blindness</a>, <a href="https://publications.waset.org/abstracts/search?q=deafness" title=" deafness"> deafness</a>, <a href="https://publications.waset.org/abstracts/search?q=hiv" title=" hiv"> hiv</a>, <a href="https://publications.waset.org/abstracts/search?q=VZV%20%20encephalitis" title=" VZV encephalitis"> VZV encephalitis</a> </p> <a href="https://publications.waset.org/abstracts/31186/blindness-and-deafness-the-outcomes-of-varicella-zoster-virus-encephalitis-in-hiv-positive-patient" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31186.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">308</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">55</span> Numerical Investigation of Blood Flow around a Leaflet Valve through a Perforating Vein</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zohreh%20Sheidaei">Zohreh Sheidaei</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Sadegh%20Moghanlou"> Farhad Sadegh Moghanlou</a>, <a href="https://publications.waset.org/abstracts/search?q=Rahim%20Vesal"> Rahim Vesal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Diseases related to leg venous system are common worldwide. An incompetent vein with deformed wall and insufficient valves affects flow field of blood and disrupts the process of blood circulating system. Having enough knowledge about the flow field through veins will help find new ways to cure the related diseases. In the present study, blood flow around a leaflet valve of a perforating vein is investigated numerically by Finite Element Method. Flow behavior and vortexes, generated around the leaflet valves, are studied considering valve opening percentage. Obtained velocity and pressure fields show mechanical stresses on vein wall and these valves and consequently introduce the regions susceptible to deformation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fluid%20flow" title="fluid flow">fluid flow</a>, <a href="https://publications.waset.org/abstracts/search?q=leaflet%20valve" title=" leaflet valve"> leaflet valve</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20investigation" title=" numerical investigation"> numerical investigation</a>, <a href="https://publications.waset.org/abstracts/search?q=perforating%20vein" title=" perforating vein"> perforating vein</a> </p> <a href="https://publications.waset.org/abstracts/34659/numerical-investigation-of-blood-flow-around-a-leaflet-valve-through-a-perforating-vein" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34659.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">411</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">54</span> Analytical Study on Threats to Wetland Ecosystems and Their Solutions in the Framework of the Ramsar Convention</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ehsan%20Daryadel">Ehsan Daryadel</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Talaie"> Farhad Talaie </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wetlands are one of the most important ecosystems on Earth. Nevertheless, various challenges threaten these ecosystems and disrupt their ecological character. Among these, the effects of human-based threats are more devastating. Following mass degradation of wetlands during 1970s, the Ramsar Convention on Wetlands (Ramsar, Iran, 1971) was concluded to conserve wetlands of international importance and prevent destruction and degradation of such ecosystems through wise use of wetlands as a mean to achieve sustainable development in all over the world. Therefore, in this paper, efforts have been made to analyze threats to wetlands and then investigate solutions in the framework of the Ramsar Convention. Finally, in order to operate these mechanisms, this study concludes that all states should in turn make their best effort to improve and restore global wetlands through preservation of environmental standards and close contribution and also through taking joint measures with other states effectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ramsar%20Convention" title="Ramsar Convention">Ramsar Convention</a>, <a href="https://publications.waset.org/abstracts/search?q=threats" title=" threats"> threats</a>, <a href="https://publications.waset.org/abstracts/search?q=wetland%20wcosystems" title=" wetland wcosystems"> wetland wcosystems</a>, <a href="https://publications.waset.org/abstracts/search?q=wise%20use" title=" wise use"> wise use</a> </p> <a href="https://publications.waset.org/abstracts/6722/analytical-study-on-threats-to-wetland-ecosystems-and-their-solutions-in-the-framework-of-the-ramsar-convention" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6722.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">401</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">53</span> Model Order Reduction for Frequency Response and Effect of Order of Method for Matching Condition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aref%20Ghafouri">Aref Ghafouri</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20javad%20Mollakazemi"> Mohammad javad Mollakazemi</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Asadi"> Farhad Asadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, model order reduction method is used for approximation in linear and nonlinearity aspects in some experimental data. This method can be used for obtaining offline reduced model for approximation of experimental data and can produce and follow the data and order of system and also it can match to experimental data in some frequency ratios. In this study, the method is compared in different experimental data and influence of choosing of order of the model reduction for obtaining the best and sufficient matching condition for following the data is investigated in format of imaginary and reality part of the frequency response curve and finally the effect and important parameter of number of order reduction in nonlinear experimental data is explained further. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=frequency%20response" title="frequency response">frequency response</a>, <a href="https://publications.waset.org/abstracts/search?q=order%20of%20model%20reduction" title=" order of model reduction"> order of model reduction</a>, <a href="https://publications.waset.org/abstracts/search?q=frequency%20matching%20condition" title=" frequency matching condition"> frequency matching condition</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear%20experimental%20data" title=" nonlinear experimental data"> nonlinear experimental data</a> </p> <a href="https://publications.waset.org/abstracts/17631/model-order-reduction-for-frequency-response-and-effect-of-order-of-method-for-matching-condition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17631.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">402</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">52</span> Effect of Hot Equal Channel Angular Pressing Process on Mechanical Properties of Commercial Pure Titanium</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Ata%20Khalkhkali%20Sharifi">Seyed Ata Khalkhkali Sharifi</a>, <a href="https://publications.waset.org/abstracts/search?q=Gholamhossein%20Majzoubi"> Gholamhossein Majzoubi</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Abroush"> Farhad Abroush</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Developing mechanical properties of pure titanium has been reviewed in this paper by using ECAP process. At the first step of this article, the experimental samples were prepared as mentioned in the standards. Then pure grade 2 Ti was processed via equal-channel angular pressing (ECAp) for 2 passes following route-A at 400°C. After processing, the microstructural evolution, tensile, fatigue, hardness properties and wear behavior were investigated. Finally, the effect of ECAP process on these samples was analyzed. The results showed improvement in strength values with a slight decrease in ductility. The analysis on 30 points within the sample showed hardness increase in each pass. Also, it was concluded that fatigue properties were increased too. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=equal-channel%20angular%20pressing" title="equal-channel angular pressing">equal-channel angular pressing</a>, <a href="https://publications.waset.org/abstracts/search?q=titanium" title=" titanium"> titanium</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20behavior" title=" mechanical behavior"> mechanical behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=engineering%20materials%20and%20applications" title=" engineering materials and applications"> engineering materials and applications</a> </p> <a href="https://publications.waset.org/abstracts/4117/effect-of-hot-equal-channel-angular-pressing-process-on-mechanical-properties-of-commercial-pure-titanium" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4117.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">51</span> Real-Time Adaptive Obstacle Avoidance with DS Method and the Influence of Dynamic Environments Change on Different DS</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saeed%20Mahjoub%20Moghadas">Saeed Mahjoub Moghadas</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Asadi"> Farhad Asadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Shahed%20Torkamandi"> Shahed Torkamandi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hassan%20Moradi"> Hassan Moradi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahmood%20Purgamshidian"> Mahmood Purgamshidian</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we present real-time obstacle avoidance approach for both autonomous and non-autonomous DS-based controllers and also based on dynamical systems (DS) method. In this approach, we can modulate the original dynamics of the controller and it allows us to determine safety margin and different types of DS to increase the robot’s reactiveness in the face of uncertainty in the localization of the obstacle and especially when robot moves very fast in changeable complex environments. The method is validated in simulation and influence of different autonomous and non-autonomous DS such as limit cycles, and unstable DS on this algorithm and also the position of different obstacles in complex environment is explained. Finally, we describe how the avoidance trajectories can be verified through different parameters such as safety factor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=limit%20cycles" title="limit cycles">limit cycles</a>, <a href="https://publications.waset.org/abstracts/search?q=nonlinear%20dynamical%20system" title=" nonlinear dynamical system"> nonlinear dynamical system</a>, <a href="https://publications.waset.org/abstracts/search?q=real%20time%20obstacle%20avoidance" title=" real time obstacle avoidance"> real time obstacle avoidance</a>, <a href="https://publications.waset.org/abstracts/search?q=DS-based%20controllers" title=" DS-based controllers"> DS-based controllers</a> </p> <a href="https://publications.waset.org/abstracts/13882/real-time-adaptive-obstacle-avoidance-with-ds-method-and-the-influence-of-dynamic-environments-change-on-different-ds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13882.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">388</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">50</span> Investigation of Regional Differences in Strong Ground Motions for the Iranian Plateau</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Sedaghati">Farhad Sedaghati</a>, <a href="https://publications.waset.org/abstracts/search?q=Shahram%20Pezeshk"> Shahram Pezeshk</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Regional variations in strong ground motions for the Iranian Plateau have been investigated by using a simple statistical method called Analysis of Variance (ANOVA). In this respect, a large database consisting of 1157 records occurring within the Iranian Plateau with moment magnitudes of greater than or equal to 5 and Joyner-Boore distances up to 200 km has been considered. Geometric averages of horizontal peak ground accelerations (PGA) as well as 5% damped linear elastic response spectral accelerations (SA) at periods of 0.2, 0.5, 1.0, and 2.0 sec are used as strong motion parameters. The initial database is divided into two different datasets, for Northern Iran (NI) and Central and Southern Iran (CSI). The comparison between strong ground motions of these two regions reveals that there is no evidence for significant differences; therefore, data from these two regions may be combined to estimate the unknown coefficients of attenuation relationships. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ANOVA" title="ANOVA">ANOVA</a>, <a href="https://publications.waset.org/abstracts/search?q=attenuation%20relationships" title=" attenuation relationships"> attenuation relationships</a>, <a href="https://publications.waset.org/abstracts/search?q=Iranian%20Plateau" title=" Iranian Plateau"> Iranian Plateau</a>, <a href="https://publications.waset.org/abstracts/search?q=PGA" title=" PGA"> PGA</a>, <a href="https://publications.waset.org/abstracts/search?q=regional%20variation" title=" regional variation"> regional variation</a>, <a href="https://publications.waset.org/abstracts/search?q=SA" title=" SA"> SA</a>, <a href="https://publications.waset.org/abstracts/search?q=strong%20ground%20motion" title=" strong ground motion"> strong ground motion</a> </p> <a href="https://publications.waset.org/abstracts/43832/investigation-of-regional-differences-in-strong-ground-motions-for-the-iranian-plateau" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43832.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">314</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">49</span> The Experimental Investigation of Temperature Influence on the Oscillations of Particles on Liquid Surfaces</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sathish%20K.%20Gurupatham">Sathish K. Gurupatham</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Sayedzada"> Farhad Sayedzada</a>, <a href="https://publications.waset.org/abstracts/search?q=Naji%20Dauk"> Naji Dauk</a>, <a href="https://publications.waset.org/abstracts/search?q=Valmiki%20Sooklal"> Valmiki Sooklal</a>, <a href="https://publications.waset.org/abstracts/search?q=Laura%20Ruhala"> Laura Ruhala</a> </p> <p class="card-text"><strong>Abstract:</strong></p> It was shown recently that small particles and powders spontaneously disperse on liquid surfaces when they come into contact with the interface for the first time. This happens due to the combined effect of the capillary force, buoyant weight of the particle and the viscous drag that the particle experiences in the liquid. The particle undergoes oscillations normal to the interface before it comes to rest on the interface. These oscillations, in turn, induce a flow on the interface which disperses the particles radially outward. This phenomenon has a significant role in the pollination of sea plants such as Ruppia in which the formation of ‘pollen rafts’ is the first step. This paper investigates, experimentally, the influence of the temperature of the liquid on which this dispersion occurs. It was observed that the frequency of oscillations of the particles decreased with the increase in the temperature of the liquid. It is because the magnitude of capillary force also decreased when the temperature of the liquid increased. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=particle%20dispersion" title="particle dispersion">particle dispersion</a>, <a href="https://publications.waset.org/abstracts/search?q=capillary%20force" title=" capillary force"> capillary force</a>, <a href="https://publications.waset.org/abstracts/search?q=viscous%20drag" title=" viscous drag"> viscous drag</a>, <a href="https://publications.waset.org/abstracts/search?q=oscillations" title=" oscillations"> oscillations</a> </p> <a href="https://publications.waset.org/abstracts/62666/the-experimental-investigation-of-temperature-influence-on-the-oscillations-of-particles-on-liquid-surfaces" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62666.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">369</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">48</span> Real Time Activity Recognition Framework for Health Monitoring Support in Home Environments</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shaikh%20Farhad%20Hossain">Shaikh Farhad Hossain</a>, <a href="https://publications.waset.org/abstracts/search?q=Liakot%20Ali"> Liakot Ali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Technology advances accelerate the quality and type of services provided for health care and especially for monitoring health conditions. Sensors have turned out to be more effective to detect diverse physiological signs and can be worn on the human body utilizing remote correspondence modules. An assortment of programming devices have been created to help in preparing a difference rundown of essential signs by examining and envisioning information produced by different sensors. In this proposition, we presented a Health signs and Activity acknowledgment monitoring system. Utilizing off-the-rack sensors, we executed a movement location system for identifying five sorts of action: falling, lying down, sitting, standing, and walking. The framework collects and analyzes sensory data in real-time, and provides different feedback to the users. In addition, it can generate alerts based on the detected events and store the data collected to a medical server. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ADL" title="ADL">ADL</a>, <a href="https://publications.waset.org/abstracts/search?q=SVM" title=" SVM"> SVM</a>, <a href="https://publications.waset.org/abstracts/search?q=TRIL" title=" TRIL "> TRIL </a>, <a href="https://publications.waset.org/abstracts/search?q=MEMS" title=" MEMS"> MEMS</a> </p> <a href="https://publications.waset.org/abstracts/80020/real-time-activity-recognition-framework-for-health-monitoring-support-in-home-environments" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80020.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">395</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">47</span> Phytoremediation Potenciality of ‘Polypogon monspeliensis L. in Detoxification of Petroleum-Contaminated Soils</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mozhgan%20Farzami%20Sepehr">Mozhgan Farzami Sepehr</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Nourozi"> Farhad Nourozi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In a greenhouse study, decontamination capacity of the species Polypogon monspoliensis, for detoxification of petroleum-polluted soils caused by sewage and waste materials of Tehran Petroleum Refinery. For this purpose, the amount of total oil and grease before and 45 days after transplanting one-month-old seedlings in the soils of five different treatments in which pollution-free agricultural soil and contaminated soil were mixed together with the weight ratio of respectively 1 to 9 (% 10), 2 to 8 (%20), 3 to 7 (%30) , 4 to 6 (%40), and 5 to 5 (%50) were evaluated and compared with the amounts obtained from control treatment without vegetation, but with the same concentration of pollution. Findings demonstrated that the maximum reduction in the petroleum rate ,as much as 84.85 percent, is related to the treatment 10% containing the plant. Increasing the shoot height in treatments 10% and 20% as well as the root dry and fresh weight in treatments 10% , 20% , and 30% shows that probably activity of more rhizosphere microorganisms of the plant in these treatments has led to the improvement in growth of plant organs comparing to the treatments without pollution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=phytoremediation" title="phytoremediation">phytoremediation</a>, <a href="https://publications.waset.org/abstracts/search?q=total%20oil%20and%20%20grease" title=" total oil and grease"> total oil and grease</a>, <a href="https://publications.waset.org/abstracts/search?q=rhizosphere" title=" rhizosphere"> rhizosphere</a>, <a href="https://publications.waset.org/abstracts/search?q=microorganisms" title=" microorganisms"> microorganisms</a>, <a href="https://publications.waset.org/abstracts/search?q=petroleum-contaminated%20soil" title=" petroleum-contaminated soil "> petroleum-contaminated soil </a> </p> <a href="https://publications.waset.org/abstracts/22502/phytoremediation-potenciality-of-polypogon-monspeliensis-l-in-detoxification-of-petroleum-contaminated-soils" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22502.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">408</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">46</span> Study of Relation between Corporate Governance Mechanism and Investment Decisions Made by Companies Listed in Tehran Stock Exchange- IRAN</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Roohollah%20Jamshidpour">Roohollah Jamshidpour</a>, <a href="https://publications.waset.org/abstracts/search?q=Elaheh%20Ahmadi"> Elaheh Ahmadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Shah%20Veisi"> Farhad Shah Veisi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Present research seeks to answer this question: Is there any relationship between corporate governance mechanisms and decision on corporate investments? Percentages of institutional, board of director’s, and stockholder’s ownership are among internal mechanisms of corporate governance relationship of which with investment-based decisions are studied by this research. Information on 103 companies during 1388 (2009)- 1393 (2014). Initially, research variables are identified; next, Rah Avard-e Novin software is used to gather Information. SPSS software is employed to test hypotheses with respect to descriptive and inferential statistics like correlation analysis. Research results show that percentage of institutional stockholders’ ownership has a significant direct relationship with investment decisions. For other cases, no significant relationship is observed between corporate governance mechanisms and investment decisions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=corporate%20governance" title="corporate governance">corporate governance</a>, <a href="https://publications.waset.org/abstracts/search?q=company%20size" title=" company size"> company size</a>, <a href="https://publications.waset.org/abstracts/search?q=free%20floating%20stock" title=" free floating stock"> free floating stock</a>, <a href="https://publications.waset.org/abstracts/search?q=institutional%20investors" title=" institutional investors"> institutional investors</a>, <a href="https://publications.waset.org/abstracts/search?q=major%20shareholders" title=" major shareholders"> major shareholders</a> </p> <a href="https://publications.waset.org/abstracts/54370/study-of-relation-between-corporate-governance-mechanism-and-investment-decisions-made-by-companies-listed-in-tehran-stock-exchange-iran" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54370.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">295</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">45</span> A Parasitic Resonator-Based Diamond Shape Microstrip Antenna for Ultra-Wide-Band Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Zulfiker%20Mahmud">M. Zulfiker Mahmud</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Naimur%20Rahman"> M. Naimur Rahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20%20Bin%20Ashraf"> Farhad Bin Ashraf</a>, <a href="https://publications.waset.org/abstracts/search?q=Norbahiah%20Misran"> Norbahiah Misran</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Tariqul%20Islam"> Mohammad Tariqul Islam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study proposes a diamond-shaped microstrip patch antenna for ultra-wideband applications. The antenna is made up of a diamond shape radiating patch, partial ground plane, and three asterisk-shaped parasitic elements. The parasitic elements are positioned above the ground plane to enhance the bandwidth and gain. The proposed antenna has a compact dimension of 30 x 25 x 1.6 mm3 and achieves an overall bandwidth (S11<-10dB) is 5.8 GHz from 2.7 GHz to 8.5 GHz. The antenna attains more than 4 dBi realized the gain and 80% efficiency over the bandwidth with omnidirectional radiation pattern. The design and simulation of the proposed antenna are performed in Computer Simulation Technology (CST) Microwave Studio. The observation during the analysis of the simulated data reveals that the proposed antenna is suitable for Ultra wide-band (UWB) applications where high gain is required. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=diamond-shaped%20antenna" title="diamond-shaped antenna">diamond-shaped antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=microstrip%20antenna" title=" microstrip antenna"> microstrip antenna</a>, <a href="https://publications.waset.org/abstracts/search?q=parasitic%20resonator" title=" parasitic resonator"> parasitic resonator</a>, <a href="https://publications.waset.org/abstracts/search?q=UWB%20applications" title=" UWB applications"> UWB applications</a> </p> <a href="https://publications.waset.org/abstracts/91476/a-parasitic-resonator-based-diamond-shape-microstrip-antenna-for-ultra-wide-band-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/91476.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">223</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">44</span> Mixed Convection Heat Transfer of Copper Oxide-Heat Transfer Oil Nanofluid in Vertical Tube</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Hekmatipour">Farhad Hekmatipour</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20Akhavan-Behabadi"> M. A. Akhavan-Behabadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Farzad%20Hekmatipour"> Farzad Hekmatipour</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, experiments were conducted to investigate the heat transfer of Copper Oxide-Heat Transfer Oil (CuO-HTO) nanofluid laminar flow in vertical smooth and microfin tubes as the surface temperature is constant. The effect of adding the nanoparticle to base fluid and Richardson number on the heat transfer enhancement is investigated as Richardson number increases from 0.1 to 0.7. The experimental results demonstrate that the combined forced-natural convection heat transfer rate may be improved significantly with an increment of mass nanoparticle concentration from 0% to 1.5%. In this experiment, a correlation is also proposed to predict the mixed convection heat transfer rate of CuO-HTO nanofluid flow. The maximum deviation of both correlations is less than 14%. Moreover, a correlation is presented to estimate the Nusselt number inside vertical smooth and microfin tubes as Rayleigh number is between 2´105 and 6.8´106 with the maximum deviation of 12%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mixed%20convection" title="mixed convection">mixed convection</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20transfer" title=" heat transfer"> heat transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=nanofluid" title=" nanofluid"> nanofluid</a>, <a href="https://publications.waset.org/abstracts/search?q=vertical%20tube" title=" vertical tube"> vertical tube</a>, <a href="https://publications.waset.org/abstracts/search?q=microfin%20tube" title=" microfin tube"> microfin tube</a> </p> <a href="https://publications.waset.org/abstracts/82101/mixed-convection-heat-transfer-of-copper-oxide-heat-transfer-oil-nanofluid-in-vertical-tube" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82101.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">380</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">43</span> Heavy Metal Distribution in Tissues of Two Commercially Important Fish Species, Euryglossa orientalis and Psettodes erumei</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reza%20Khoshnood">Reza Khoshnood</a>, <a href="https://publications.waset.org/abstracts/search?q=Zahra%20Khoshnood"> Zahra Khoshnood</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Hajinajaf"> Ali Hajinajaf</a>, <a href="https://publications.waset.org/abstracts/search?q=Farzad%20Fahim"> Farzad Fahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Behdokht%20Hajinajaf"> Behdokht Hajinajaf</a>, <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Fahim"> Farhad Fahim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In 2013, 24 fish samples were taken from two fishery regions in Bandar-Abbas and Bandar-Lengeh, the fishing grounds north of Hormoz Strait (Persian Gulf) near the Iranian coastline. The two flat fishes were oriental sole (Euryglossa orientalis) and deep flounder (Psettodes erumei). Using the ROPME method (MOOPAM) for chemical digestion, Cd concentration was measured with a nonflame atomic absorption spectrophotometry technique. The average concentration of Cd in the edible muscle tissue of deep flounder was measured in Bandar-Abbas and was found to be 0.15±.06 µg g-1. It was 0.1±.05 µg.g-1 in Bandar-Lengeh. The corresponding values for oriental sole were 0.2±0.13 and 0.13±0.11 µg.g-1. The average concentration of Cd in the liver tissue of deep flounder in Bandar-Abbas was 0.22±.05 µg g-1 and that in Bandar-Lengeh was 0.2±0.04 µg.g-1. The values for oriental sole were 0.31±0.09 and 0.24±0.13 µg g-1 in Bandar-Abbas and Bandar-Lengeh, respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=trace%20metal" title="trace metal">trace metal</a>, <a href="https://publications.waset.org/abstracts/search?q=Euryglossa%20orientalis" title=" Euryglossa orientalis"> Euryglossa orientalis</a>, <a href="https://publications.waset.org/abstracts/search?q=Psettodes%20erumei" title=" Psettodes erumei"> Psettodes erumei</a>, <a href="https://publications.waset.org/abstracts/search?q=Persian%20Gulf" title=" Persian Gulf"> Persian Gulf</a> </p> <a href="https://publications.waset.org/abstracts/13876/heavy-metal-distribution-in-tissues-of-two-commercially-important-fish-species-euryglossa-orientalis-and-psettodes-erumei" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13876.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">668</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">42</span> Investigation on Performance of Change Point Algorithm in Time Series Dynamical Regimes and Effect of Data Characteristics </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Asadi">Farhad Asadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Javad%20Mollakazemi"> Mohammad Javad Mollakazemi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, Bayesian online inference in models of data series are constructed by change-points algorithm, which separated the observed time series into independent series and study the change and variation of the regime of the data with related statistical characteristics. variation of statistical characteristics of time series data often represent separated phenomena in the some dynamical system, like a change in state of brain dynamical reﬂected in EEG signal data measurement or a change in important regime of data in many dynamical system. In this paper, prediction algorithm for studying change point location in some time series data is simulated. It is verified that pattern of proposed distribution of data has important factor on simpler and smother fluctuation of hazard rate parameter and also for better identification of change point locations. Finally, the conditions of how the time series distribution effect on factors in this approach are explained and validated with different time series databases for some dynamical system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=time%20series" title="time series">time series</a>, <a href="https://publications.waset.org/abstracts/search?q=fluctuation%20in%20statistical%20characteristics" title=" fluctuation in statistical characteristics"> fluctuation in statistical characteristics</a>, <a href="https://publications.waset.org/abstracts/search?q=optimal%20learning" title=" optimal learning"> optimal learning</a>, <a href="https://publications.waset.org/abstracts/search?q=change-point%20algorithm" title=" change-point algorithm"> change-point algorithm</a> </p> <a href="https://publications.waset.org/abstracts/18167/investigation-on-performance-of-change-point-algorithm-in-time-series-dynamical-regimes-and-effect-of-data-characteristics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18167.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">426</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">41</span> Influence of Parameters of Modeling and Data Distribution for Optimal Condition on Locally Weighted Projection Regression Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Asadi">Farhad Asadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Javad%20Mollakazemi"> Mohammad Javad Mollakazemi</a>, <a href="https://publications.waset.org/abstracts/search?q=Aref%20Ghafouri"> Aref Ghafouri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recent research in neural networks science and neuroscience for modeling complex time series data and statistical learning has focused mostly on learning from high input space and signals. Local linear models are a strong choice for modeling local nonlinearity in data series. Locally weighted projection regression is a flexible and powerful algorithm for nonlinear approximation in high dimensional signal spaces. In this paper, different learning scenario of one and two dimensional data series with different distributions are investigated for simulation and further noise is inputted to data distribution for making different disordered distribution in time series data and for evaluation of algorithm in locality prediction of nonlinearity. Then, the performance of this algorithm is simulated and also when the distribution of data is high or when the number of data is less the sensitivity of this approach to data distribution and influence of important parameter of local validity in this algorithm with different data distribution is explained. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=local%20nonlinear%20estimation" title="local nonlinear estimation">local nonlinear estimation</a>, <a href="https://publications.waset.org/abstracts/search?q=LWPR%20algorithm" title=" LWPR algorithm"> LWPR algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=online%20training%20method" title=" online training method"> online training method</a>, <a href="https://publications.waset.org/abstracts/search?q=locally%20weighted%20projection%20regression%20method" title=" locally weighted projection regression method"> locally weighted projection regression method</a> </p> <a href="https://publications.waset.org/abstracts/14554/influence-of-parameters-of-modeling-and-data-distribution-for-optimal-condition-on-locally-weighted-projection-regression-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/14554.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">502</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">40</span> Investment Guide in Qatar</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamad%20Farhad%20Bakhtiyariyan">Mohamad Farhad Bakhtiyariyan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the manner to earning profit and having a high income, is investing in an acceptable market. Every the thinker brain knows, investing in the business world today, maybe, have a manifold profit or lead to failure. So, before entering in the investment market, we must have a comprehensive and sufficient awareness, know markets, acquainted with the main industrial activities, know the rules and regulation and consider the conditions of society. Qatar, as a one of the richest countries in the world, can be a good destination for investment. The inflation rate, taxes, easiness of the importing, company registration, ease of exporting process, profitable and appropriate markets, simple and applicable rules, all of this has made Qatar, one of the best and gainful investment countries. Above all, Qatar 2022 world cup event, has led of investment in this country efficiently and profitable method. In this paper, first, we have introduced the Qatar and its location, also looked at the countries international markets during the world cup and we have described the impact of the world cup on business, and then the laws and regulations of the Qatar in the field of investment, company registration, ownership by foreigners, obtaining residency by investors, export and import process in second part its examined, and in third part, major investment markets, principal industrial activities in Qatar, markets affected by the world cup and the main needs of this country in various fields during the world cup, have been investigated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=investment" title="investment">investment</a>, <a href="https://publications.waset.org/abstracts/search?q=Qatar" title=" Qatar"> Qatar</a>, <a href="https://publications.waset.org/abstracts/search?q=markets" title=" markets"> markets</a>, <a href="https://publications.waset.org/abstracts/search?q=world%20cup" title=" world cup"> world cup</a> </p> <a href="https://publications.waset.org/abstracts/128900/investment-guide-in-qatar" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/128900.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">194</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">39</span> The Impact of Collaborative Writing through Wikis and Blogs on Iranian EFL Learners’ Writing Achievement</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Ghorbandordinejad">Farhad Ghorbandordinejad</a>, <a href="https://publications.waset.org/abstracts/search?q=Shamsoddin%20Aref"> Shamsoddin Aref</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wikis and blogs, defined as educational tools in line with the objectives of collaborative writing, are regarded as innovative ways of writing addressing the problems of conventional types of writing. Although writing in wikis and blogs step in different contexts, they are both aiming at betterment of collaborative writing procedures. It is believed that due to certain reasons bringing in wikis and blogs to learners' life can lead to better performance of writing. This study aimed at dipping into pedagogical aspects of wikis and blogs in the hope of eliminating prior traditional mistakes and bringing students together in a more constructive L2 context. To this end, three groups of intermediate students were experimented in three settings of wiki-group, blog-group and conventional (control) group. Despite conventional group learners, participants in both experimental groups experienced L2 writing in a new telecollaborative context. An achievement test was administered after the treatment to check learners’ degree of improvement in EFL writing. The results of this study provide a deep insight towards the effectiveness of writing in the contexts of wikis and blogs compared with conventional writing procedures. The overall conclusion drawn from the distinction of conventional writing, on one hand, and wikis and blogs, on the other hand, indicates that the latter channels of writing are more constructive for learners’ writing improvements. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=collaborative%20writing" title="collaborative writing">collaborative writing</a>, <a href="https://publications.waset.org/abstracts/search?q=wikis" title=" wikis"> wikis</a>, <a href="https://publications.waset.org/abstracts/search?q=blogs" title=" blogs"> blogs</a>, <a href="https://publications.waset.org/abstracts/search?q=writing%20achievement" title=" writing achievement"> writing achievement</a> </p> <a href="https://publications.waset.org/abstracts/41516/the-impact-of-collaborative-writing-through-wikis-and-blogs-on-iranian-efl-learners-writing-achievement" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41516.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">391</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">38</span> A New Approach to Achieve the Regime Equations in Sand-Bed Rivers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Farhad%20Imanshoar">Farhad Imanshoar </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The regime or equilibrium geometry of alluvial rivers remains a topic of fundamental scientific and engineering interest. There are several approaches to analyze the problem, namely: empirical formulas, semi-theoretical methods and rational (extreme) procedures. However, none of them is widely accepted at present, due to lack of knowledge of some physical processes associated with channel formation and the simplification hypotheses imposed in order to reduce the high quantity of involved variables. The study presented in this paper shows a new approach to estimate stable width and depth of sand-bed rivers by using developed stream power equation (DSPE). At first, a new procedure based on theoretical analysis and by considering DSPE and ultimate sediment concentration were developed. Then, experimental data for regime condition in sand-bed rivers (flow depth, flow width, sediment feed rate for several cases) were gathered. Finally, the results of this research (regime equations) are compared with the field data and other regime equations. A good agreement was observed between the field data and the values resulted from developed regime equation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=regime%20equations" title="regime equations">regime equations</a>, <a href="https://publications.waset.org/abstracts/search?q=developed%20stream%20power%20equation" title=" developed stream power equation"> developed stream power equation</a>, <a href="https://publications.waset.org/abstracts/search?q=sand-bed%20rivers" title=" sand-bed rivers"> sand-bed rivers</a>, <a href="https://publications.waset.org/abstracts/search?q=semi-theoretical%20methods" title=" semi-theoretical methods"> semi-theoretical methods</a> </p> <a href="https://publications.waset.org/abstracts/28554/a-new-approach-to-achieve-the-regime-equations-in-sand-bed-rivers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28554.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">268</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Farhad%20Nikkhahi&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Farhad%20Nikkhahi&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Farhad%20Nikkhahi&page=2" rel="next">&rsaquo;</a></li> </ul> </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 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