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magnetic</title> <meta name="description" content="Search results for: reluctance magnetic"> <meta name="keywords" content="reluctance magnetic"> <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="reluctance magnetic"> <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> 1494</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: reluctance magnetic</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1494</span> Analytical Modeling of Equivalent Magnetic Circuit in Multi-segment and Multi-barrier Synchronous Reluctance Motor </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Huai-Cong%20Liu%EF%BC%8CTae%20Chul%20Jeong%EF%BC%8CJu%20Lee">Huai-Cong Liu，Tae Chul Jeong，Ju Lee </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper describes characteristic analysis of a synchronous reluctance motor (SynRM)’s rotor with the Multi-segment and Multi-layer structure. The magnetic-saturation phenomenon in SynRM is often appeared. Therefore, when modeling analysis of SynRM the calculation of nonlinear magnetic field needs to be considered. An important influence factor on the convergence process is how to determine the relative permeability. An improved method, which ensures the calculation, is convergence by linear iterative method for saturated magnetic field. If there are inflection points on the magnetic curve,an optimum convergence method of solution for nonlinear magnetic field was provided. Then the equivalent magnetic circuit is calculated, and d,q-axis inductance can be got. At last, this process is applied to design a 7.5Kw SynRM and its validity is verified by comparing with the result of finite element method (FEM) and experimental test data. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=SynRM" title="SynRM">SynRM</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic-saturation" title=" magnetic-saturation"> magnetic-saturation</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20circuit" title=" magnetic circuit"> magnetic circuit</a>, <a href="https://publications.waset.org/abstracts/search?q=analytical%20modeling" title=" analytical modeling"> analytical modeling</a> </p> <a href="https://publications.waset.org/abstracts/25307/analytical-modeling-of-equivalent-magnetic-circuit-in-multi-segment-and-multi-barrier-synchronous-reluctance-motor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25307.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">503</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">1493</span> Static Eccentricity Fault Diagnosis in Synchronous Reluctance Motor and Permanent Magnet Assisted Synchronous Reluctance Motor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Naeimi">M. Naeimi</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Aghazadeh"> H. Aghazadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Afjei"> E. Afjei</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Siadatan"> A. Siadatan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a novel view of air gap magnetic field analysis of synchronous reluctance motor and permanent magnet assisted synchronous reluctance motor under static eccentricity to provide the precise fault diagnosis based on three-dimensional finite element method is presented. Analytical nature of this method makes it possible to simulate reliable and precise model by considering the end effects and axial fringing effects. The results of the three-dimensional finite element analysis of synchronous reluctance motor and permanent magnet synchronous reluctance motor such as flux linkage, flux density, and compression both of SynRM and PM-SynRM for various eccentric motor conditions are obtained and analyzed. These results present useful information regarding to the detection of static eccentricity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=synchronous%20reluctance%20motor%20%28SynRM%29" title="synchronous reluctance motor (SynRM)">synchronous reluctance motor (SynRM)</a>, <a href="https://publications.waset.org/abstracts/search?q=permanent%20magnet%20assisted%20synchronous%20reluctance%20motor%20%28PMaSynRM%29" title=" permanent magnet assisted synchronous reluctance motor (PMaSynRM)"> permanent magnet assisted synchronous reluctance motor (PMaSynRM)</a>, <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=static%20eccentricity" title=" static eccentricity"> static eccentricity</a>, <a href="https://publications.waset.org/abstracts/search?q=fault%20analysis" title=" fault analysis"> fault analysis</a> </p> <a href="https://publications.waset.org/abstracts/87636/static-eccentricity-fault-diagnosis-in-synchronous-reluctance-motor-and-permanent-magnet-assisted-synchronous-reluctance-motor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/87636.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">311</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1492</span> Variation of Inductance in a Switched-Reluctance Motor under Various Rotor Faults</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Asghar%20Saqib">Muhammad Asghar Saqib</a>, <a href="https://publications.waset.org/abstracts/search?q=Saad%20Saleem%20Khan"> Saad Saleem Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Syed%20Abdul%20Rahman%20Kashif"> Syed Abdul Rahman Kashif</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In order to have higher efficiency, performance and reliability the regular monitoring of an electrical motor is required. This article presents a novel view of the air-gap magnetic field analysis of a switched reluctance motor under rotor cracks and rotor tilt along its shaft axis. The fault diagnosis is illustrated on the basis of a 3-D model of the motor using finite element analysis (FEA). The analytical equations of flux linkages have been used to determine the inductance. The results of the 3-D finite element analysis on a 6/4 switched reluctance motor (SRM) shows the variation of mutual inductance with the tilting of the rotor shaft and cracked rotor conditions. These results present useful information regarding the detection of shaft tilting and cracked rotors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=switched%20reluctance%20motor" title="switched reluctance motor">switched reluctance motor</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20analysis" title=" finite element analysis"> finite element analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=cracked%20rotor" title=" cracked rotor"> cracked rotor</a>, <a href="https://publications.waset.org/abstracts/search?q=3-D%20modelling%20of%20a%20srm" title=" 3-D modelling of a srm"> 3-D modelling of a srm</a> </p> <a href="https://publications.waset.org/abstracts/30951/variation-of-inductance-in-a-switched-reluctance-motor-under-various-rotor-faults" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30951.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">663</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">1491</span> Finite Element Method Analysis of a Modified Rotor 6/4 Switched Reluctance Motor's and Comparison with Brushless Direct Current Motor in Pan-Tilt Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Umit%20Candan">Umit Candan</a>, <a href="https://publications.waset.org/abstracts/search?q=Kadir%20Dogan"> Kadir Dogan</a>, <a href="https://publications.waset.org/abstracts/search?q=Ozkan%20Akin"> Ozkan Akin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the use of a modified rotor 6/4 Switched Reluctance Motor (SRM) and a Brushless Direct Current Motor (BLDC) in pan-tilt systems is compared. Pan-tilt systems are critical mechanisms that enable the precise orientation of cameras and sensors, and their performance largely depends on the characteristics of the motors used. The aim of the study is to determine how the performance of the SRM can be improved through rotor modifications and how these improvements can compete with BLDC motors. Using Finite Element Method (FEM) analyses, the design characteristics and magnetic performance of the 6/4 Switched Reluctance Motor are examined in detail. The modified SRM is found to offer increased torque capacity and efficiency while standing out with its simple construction and robustness. FEM analysis results of SRM indicate that considering its cost-effectiveness and performance improvements achieved through modifications, the SRM is a strong alternative for certain pan-tilt applications. This study aims to provide engineers and researchers with a performance comparison of the modified rotor 6/4 SRM and BLDC motors in pan-tilt systems, helping them make more informed and effective motor selections. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=reluctance%20machines" title="reluctance machines">reluctance machines</a>, <a href="https://publications.waset.org/abstracts/search?q=switched%20reluctance%20machines" title=" switched reluctance machines"> switched reluctance machines</a>, <a href="https://publications.waset.org/abstracts/search?q=pan-tilt%20application" title=" pan-tilt application"> pan-tilt application</a>, <a href="https://publications.waset.org/abstracts/search?q=comparison" title=" comparison"> comparison</a>, <a href="https://publications.waset.org/abstracts/search?q=FEM%20analysis" title=" FEM analysis"> FEM analysis</a> </p> <a href="https://publications.waset.org/abstracts/186393/finite-element-method-analysis-of-a-modified-rotor-64-switched-reluctance-motors-and-comparison-with-brushless-direct-current-motor-in-pan-tilt-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186393.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">58</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">1490</span> Switching Losses in Power Electronic Converter of Switched Reluctance Motor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ali%20Asghar%20Memon">Ali Asghar Memon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A cautious and astute selection of switching devices used in power electronic converters of a switched reluctance (SR) motor is required. It is a matter of choice of best switching devices with respect to their switching ability rather than fulfilling the number of switches. This paper highlights the computational determination of switching losses comprising of switch-on, switch-off and conduction losses respectively by using experimental data in simulation model of a SR machine. The finding of this research is helpful for proper selection of electronic switches and suitable converter topology for switched reluctance motor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=converter" title="converter">converter</a>, <a href="https://publications.waset.org/abstracts/search?q=operating%20modes" title=" operating modes"> operating modes</a>, <a href="https://publications.waset.org/abstracts/search?q=switched%20reluctance%20motor" title=" switched reluctance motor"> switched reluctance motor</a>, <a href="https://publications.waset.org/abstracts/search?q=switching%20losses" title=" switching losses"> switching losses</a> </p> <a href="https://publications.waset.org/abstracts/35250/switching-losses-in-power-electronic-converter-of-switched-reluctance-motor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35250.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">507</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">1489</span> Study on the DC Linear Stepper Motor to Industrial Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nolvi%20Francisco%20Baggio%20Filho">Nolvi Francisco Baggio Filho</a>, <a href="https://publications.waset.org/abstracts/search?q=Roniele%20Belusso"> Roniele Belusso</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Many industrial processes require a precise linear motion. Usually, this movement is achieved with the use of rotary motors combined with electrical control systems and mechanical systems such as gears, pulleys and bearings. Other types of devices are based on linear motors, where the linear motion is obtained directly. The Linear Stepper Motor (MLP) is an excellent solution for industrial applications that require precise positioning and high speed. This study presents an MLP formed by a linear structure and static ferromagnetic material, and a mover structure in which three coils are mounted. Mechanical suspension systems allow a linear movement between static and mover parts, maintaining a constant air gap. The operating principle is based on the tendency of alignment of magnetic flux through the path of least reluctance. The force proportional to the intensity of the electric current and the speed proportional to the frequency of the excitation coils. The study of this device is still based on the use of a numerical and experimental analysis to verify the relationship among electric current applied and planar force developed. In addition, the magnetic field in the air gap region is also monitored. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=linear%20stepper%20motor" title="linear stepper motor">linear stepper motor</a>, <a href="https://publications.waset.org/abstracts/search?q=planar%20traction%20force" title=" planar traction force"> planar traction force</a>, <a href="https://publications.waset.org/abstracts/search?q=reluctance%20magnetic" title=" reluctance magnetic"> reluctance magnetic</a>, <a href="https://publications.waset.org/abstracts/search?q=industry%20applications" title=" industry applications"> industry applications</a> </p> <a href="https://publications.waset.org/abstracts/26958/study-on-the-dc-linear-stepper-motor-to-industrial-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26958.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">500</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">1488</span> Finite Element Analysis of High Performance Synchronous Reluctance Machines</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=T.%20Mohanarajah">T. Mohanarajah</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Rizk"> J. Rizk</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Nagrial"> M. Nagrial</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Hellany"> A. Hellany</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper analyses numerous features of the synchronous Reluctance Motor (Syn-RM) and propose a rotor for high electrical torque, power factor & efficiency using Finite Element Method (FEM). A comprehensive analysis completed on solid rotor structure while the total thickness of the flux guide kept constant. A number of tests carried out for nine different studies to find out optimum location of the flux guide, the optimum location of multiple flux guides & optimum wall thickness between flux guides for high-performance reluctance machines. The results are concluded with the aid of FEM simulation results, the saliency ratio and machine characteristics (location, a number of barriers & wall width) analysed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrical%20machines" title="electrical machines">electrical machines</a>, <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=synchronous%20reluctance%20machines" title=" synchronous reluctance machines"> synchronous reluctance machines</a>, <a href="https://publications.waset.org/abstracts/search?q=variable%20reluctance%20machines" title=" variable reluctance machines"> variable reluctance machines</a> </p> <a href="https://publications.waset.org/abstracts/32219/finite-element-analysis-of-high-performance-synchronous-reluctance-machines" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32219.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">485</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">1487</span> Magnetic Nanoparticles for Cancer Therapy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sachinkumar%20Patil">Sachinkumar Patil</a>, <a href="https://publications.waset.org/abstracts/search?q=Sonali%20Patil"> Sonali Patil</a>, <a href="https://publications.waset.org/abstracts/search?q=Shitalkumar%20Patil"> Shitalkumar Patil</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nanoparticles played important role in the biomedicine. New advanced methods having great potential apllication in the diagnosis and therapy of cancer. Now a day’s magnetic nanoparticles used in cancer therapy. Cancer is the major disease causes death. Magnetic nanoparticles show response to the magnetic field on the basis of this property they are used in cancer therapy. Cancer treated with hyperthermia by using magnetic nanoparticles it is unconventional but more safe and effective method. Magnetic nanoparticles prepared by using different innovative techniques that makes particles in uniform size and desired effect. Magnetic nanoparticles already used as contrast media in magnetic resonance imaging. A magnetic nanoparticle has been great potential application in cancer diagnosis and treatment as well as in gene therapy. In this review we will discuss the progress in cancer therapy based on magnetic nanoparticles, mainly including magnetic hyperthermia, synthesis and characterization of magnetic nanoparticles, mechanism of magnetic nanoparticles and application of magnetic nanoparticles. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic%20nanoparticles" title="magnetic nanoparticles">magnetic nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=synthesis" title=" synthesis"> synthesis</a>, <a href="https://publications.waset.org/abstracts/search?q=characterization" title=" characterization"> characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=cancer%20therapy" title=" cancer therapy"> cancer therapy</a>, <a href="https://publications.waset.org/abstracts/search?q=hyperthermia" title=" hyperthermia"> hyperthermia</a>, <a href="https://publications.waset.org/abstracts/search?q=application" title=" application"> application</a> </p> <a href="https://publications.waset.org/abstracts/31421/magnetic-nanoparticles-for-cancer-therapy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31421.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">639</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">1486</span> Core Loss Influence on MTPA Current Vector Variation of Synchronous Reluctance Machine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Huai-Cong%20Liu">Huai-Cong Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Tae%20Chul%20Jeong"> Tae Chul Jeong</a>, <a href="https://publications.waset.org/abstracts/search?q=Ju%20Lee"> Ju Lee </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this study was to develop an electric circuit method (ECM) to ascertain the core loss influence on a Synchronous Reluctance Motor (SynRM) in the condition of the maximum torque per ampere (MTPA). SynRM for fan usually operates on the constant torque region, at synchronous speed the MTPA control is adopted due to current vector. However, finite element analysis (FEA) program is not sufficient exactly to reflect how the core loss influenced on the current vector. This paper proposed a method to calculate the current vector with consideration of core loss. The precision of current vector by ECM is useful for MTPA control. The result shows that ECM analysis is closer to the actual motor’s characteristics by testing with a 7.5kW SynRM drive System. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=core%20loss" title="core loss">core loss</a>, <a href="https://publications.waset.org/abstracts/search?q=SynRM" title=" SynRM"> SynRM</a>, <a href="https://publications.waset.org/abstracts/search?q=current%20vector" title=" current vector"> current vector</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20saturation" title=" magnetic saturation"> magnetic saturation</a>, <a href="https://publications.waset.org/abstracts/search?q=maximum%20torque%20per%20ampere%20%28MTPA%29" title=" maximum torque per ampere (MTPA)"> maximum torque per ampere (MTPA)</a> </p> <a href="https://publications.waset.org/abstracts/25312/core-loss-influence-on-mtpa-current-vector-variation-of-synchronous-reluctance-machine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25312.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">530</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">1485</span> Sensitivity Analysis of External-Rotor Permanent Magnet Assisted Synchronous Reluctance Motor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hadi%20Aghazadeh">Hadi Aghazadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Ebrahim%20Afjei"> Seyed Ebrahim Afjei</a>, <a href="https://publications.waset.org/abstracts/search?q=Alireza%20Siadatan"> Alireza Siadatan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a proper approach is taken to assess a set of the most effective rotor design parameters for an external-rotor permanent magnet assisted synchronous reluctance motor (PMaSynRM) and therefore to tackle the design complexity of the rotor structure. There are different advantages for introducing permanent magnets into the rotor flux barriers, some of which are to saturate the rotor iron ribs, to increase the motor torque density and to improve the power factor. Moreover, the d-axis and q-axis inductances are of great importance to simultaneously achieve maximum developed torque and low torque ripple. Therefore, sensitivity analysis of the rotor geometry of an 8-pole external-rotor permanent magnet assisted synchronous reluctance motor is performed. Several magnetically accurate finite element analyses (FEA) are conducted to characterize the electromagnetic performance of the motor. The analyses validate torque and power factor equations for the proposed external-rotor motor. Based upon the obtained results and due to an additional term, permanent magnet torque, added to the reluctance torque, the electromagnetic torque of the PMaSynRM increases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=permanent%20magnet%20assisted%20synchronous%20reluctance%20motor" title="permanent magnet assisted synchronous reluctance motor">permanent magnet assisted synchronous reluctance motor</a>, <a href="https://publications.waset.org/abstracts/search?q=flux%20barrier" title=" flux barrier"> flux barrier</a>, <a href="https://publications.waset.org/abstracts/search?q=flux%20carrier" title=" flux carrier"> flux carrier</a>, <a href="https://publications.waset.org/abstracts/search?q=electromagnetic%20torque" title=" electromagnetic torque"> electromagnetic torque</a>, <a href="https://publications.waset.org/abstracts/search?q=and%20power%20factor" title=" and power factor"> and power factor</a> </p> <a href="https://publications.waset.org/abstracts/85367/sensitivity-analysis-of-external-rotor-permanent-magnet-assisted-synchronous-reluctance-motor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85367.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">331</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">1484</span> H-Infinity Controller Design for the Switched Reluctance Machine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Siwar%20Fadhel">Siwar Fadhel</a>, <a href="https://publications.waset.org/abstracts/search?q=Imen%20Bahri"> Imen Bahri</a>, <a href="https://publications.waset.org/abstracts/search?q=Man%20Zhang"> Man Zhang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The switched reluctance machine (SRM) has undeniable qualities in terms of low cost and mechanical robustness. However, its highly nonlinear character and its uncertain parameters justify the development of complicated controls. In this paper, authors present the design of a robust H-infinity current controller for an 8/6 SRM with taking into account the nonlinearity of the SRM and with rejection of disturbances. The electromagnetic torque is indirectly regulated through the current controller. To show the performances of this control, a robustness analysis is performed by comparing the H-infinity and PI controller simulation results. This comparison demonstrates better performances for the presented controller. The effectiveness and robustness of the presented controller are also demonstrated by experimental tests. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=current%20regulation" title="current regulation">current regulation</a>, <a href="https://publications.waset.org/abstracts/search?q=experimentation" title=" experimentation"> experimentation</a>, <a href="https://publications.waset.org/abstracts/search?q=robust%20H-infinity%20control" title=" robust H-infinity control"> robust H-infinity control</a>, <a href="https://publications.waset.org/abstracts/search?q=switched%20reluctance%20machine" title=" switched reluctance machine"> switched reluctance machine</a> </p> <a href="https://publications.waset.org/abstracts/54863/h-infinity-controller-design-for-the-switched-reluctance-machine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54863.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">310</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">1483</span> The Influence of Reaction Parameters on Magnetic Properties of Synthesized Strontium Ferrite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Bahgat">M. Bahgat</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20M.%20Awan"> F. M. Awan</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20A.%20Hanafy"> H. A. Hanafy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The conventional ceramic route was utilized to prepare a hard magnetic powder (M-type strontium ferrite, SrFe12O19). The stoichiometric mixture of iron oxide and strontium carbonate were calcined at 1000°C and then fired at various temperatures. The influence of various reaction parameters such as mixing ratio, calcination temperature, firing temperature and firing time on the magnetic behaviors of the synthesized magnetic powder were investigated.The magnetic properties including Coercivity (Hc), Magnetic saturation (Ms), and Magnetic remnance (Mr) were measured by vibrating sample magnetometer. Morphologically the produced magnetic powder has a dense hexagonal grain shape structure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hard%20magnetic%20materials" title="hard magnetic materials">hard magnetic materials</a>, <a href="https://publications.waset.org/abstracts/search?q=ceramic%20route" title=" ceramic route"> ceramic route</a>, <a href="https://publications.waset.org/abstracts/search?q=strontium%20ferrite" title=" strontium ferrite"> strontium ferrite</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20properties" title=" magnetic properties"> magnetic properties</a> </p> <a href="https://publications.waset.org/abstracts/21878/the-influence-of-reaction-parameters-on-magnetic-properties-of-synthesized-strontium-ferrite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21878.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">693</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">1482</span> Effect of Measured and Calculated Static Torque on Instantaneous Torque Profile of Switched Reluctance Motor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ali%20Asghar%20Memon">Ali Asghar Memon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The simulation modeling of switched reluctance (SR) machine often relies and uses the three data tables identified as static torque characteristics that include flux linkage characteristics, co energy characteristics and static torque characteristics separately. It has been noticed from the literature that the data of static torque used in the simulation model is often calculated so far the literature is concerned. This paper presents the simulation model that include the data of measured and calculated static torque separately to see its effect on instantaneous torque profile of the machine. This is probably for the first time so far the literature review is concerned that static torque from co energy information, and measured static torque directly from experiments are separately used in the model. This research is helpful for accurate modeling of switched reluctance drive. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=static%20characteristics" title="static characteristics">static characteristics</a>, <a href="https://publications.waset.org/abstracts/search?q=current%20chopping" title=" current chopping"> current chopping</a>, <a href="https://publications.waset.org/abstracts/search?q=flux%20linkage%20characteristics" title=" flux linkage characteristics"> flux linkage characteristics</a>, <a href="https://publications.waset.org/abstracts/search?q=switched%20reluctance%20motor" title=" switched reluctance motor"> switched reluctance motor</a> </p> <a href="https://publications.waset.org/abstracts/49478/effect-of-measured-and-calculated-static-torque-on-instantaneous-torque-profile-of-switched-reluctance-motor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49478.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">292</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">1481</span> Design and Performance Evaluation of Synchronous Reluctance Machine (SynRM)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hadi%20Aghazadeh">Hadi Aghazadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammadreza%20Naeimi"> Mohammadreza Naeimi</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Ebrahim%20Afjei"> Seyed Ebrahim Afjei</a>, <a href="https://publications.waset.org/abstracts/search?q=Alireza%20Siadatan"> Alireza Siadatan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Torque ripple, maximum torque and high efficiency are important issues in synchronous reluctance machine (SynRM). This paper presents a view on design of a high efficiency, low torque ripple and high torque density SynRM. To achieve this goal SynRM parameters is calculated (such as insulation ratios in the d-and q-axes and the rotor slot pitch), while the torque ripple can be minimized by determining the best rotor slot pitch in the d-axis. The presented analytical-finite element method (FEM) approach gives the optimum distribution of air gap and iron portion for the maximizing torque density with minimum torque ripple. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=torque%20ripple" title="torque ripple">torque ripple</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency" title=" efficiency"> efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=insulation%20ratio" title=" insulation ratio"> insulation ratio</a>, <a href="https://publications.waset.org/abstracts/search?q=FEM" title=" FEM"> FEM</a>, <a href="https://publications.waset.org/abstracts/search?q=synchronous%20reluctance%20machine%20%28SynRM%29" title=" synchronous reluctance machine (SynRM)"> synchronous reluctance machine (SynRM)</a>, <a href="https://publications.waset.org/abstracts/search?q=induction%20motor%20%28IM%29" title=" induction motor (IM)"> induction motor (IM)</a> </p> <a href="https://publications.waset.org/abstracts/85364/design-and-performance-evaluation-of-synchronous-reluctance-machine-synrm" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85364.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">227</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">1480</span> Analytical Model for Vacuum Cathode Arcs in an Oblique Magnetic Field</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=P.%20W.%20Chen">P. W. Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20T.%20Chang"> C. T. Chang</a>, <a href="https://publications.waset.org/abstracts/search?q=Y.%20Peng"> Y. Peng</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Y.%20Wu"> J. Y. Wu</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20J.%20Jan"> D. J. Jan</a>, <a href="https://publications.waset.org/abstracts/search?q=Md.%20Manirul%20Ali"> Md. Manirul Ali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the last decade, the nature of cathode spot splitting and the current per spot depended on an oblique magnetic field was investigated. This model for cathode current splitting is developed that we have investigated with relationship the magnetic pressures produced by kinetic pressure, self-magnetic pressure, and changed with an external magnetic field. We propose a theoretical model that has been established to an external magnetic field with components normal and tangential to the cathode surface influenced on magnetic pressure strength. We mainly focus on developed to understand the current per spot influenced with the tangential magnetic field strength and normal magnetic field strength. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cathode%20spot" title="cathode spot">cathode spot</a>, <a href="https://publications.waset.org/abstracts/search?q=vacuum%20arc%20discharge" title=" vacuum arc discharge"> vacuum arc discharge</a>, <a href="https://publications.waset.org/abstracts/search?q=oblique%20magnetic%20field" title=" oblique magnetic field"> oblique magnetic field</a>, <a href="https://publications.waset.org/abstracts/search?q=tangential%20magnetic%20field" title=" tangential magnetic field"> tangential magnetic field</a> </p> <a href="https://publications.waset.org/abstracts/52606/analytical-model-for-vacuum-cathode-arcs-in-an-oblique-magnetic-field" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52606.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">324</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">1479</span> Consideration of Magnetic Lines of Force as Magnets Produced by Percussion Waves</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Angel%20P%C3%A9rez%20S%C3%A1nchez">Angel Pérez Sánchez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Consider magnetic lines of force as a vector magnetic current was introduced by convention around 1830. But this leads to a dead end in traditional physics, and quantum explanations must be referred to explain the magnetic phenomenon. However, a study of magnetic lines as percussive waves leads to other paths capable of interpreting magnetism through traditional physics. Methodology: Brick used in the experiment: two parallel electric current cables attract each other if current goes in the same direction and its application at a microscopic level inside magnets. Significance: Consideration of magnetic lines as magnets themselves would mean a paradigm shift in the study of magnetism and open the way to provide solutions to mysteries of magnetism until now only revealed by quantum mechanics. Major findings: discover how a magnetic field is created, as well as reason how magnetic attraction and repulsion work, understand how magnets behave when splitting them, and reveal the impossibility of a Magnetic Monopole. All of this is presented as if it were a symphony in which all the notes fit together perfectly to create a beautiful, smart, and simple work. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic%20lines%20of%20force" title="magnetic lines of force">magnetic lines of force</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20field" title=" magnetic field"> magnetic field</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20attraction%20and%20repulsion" title=" magnetic attraction and repulsion"> magnetic attraction and repulsion</a>, <a href="https://publications.waset.org/abstracts/search?q=magnet%20split" title=" magnet split"> magnet split</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20monopole" title=" magnetic monopole"> magnetic monopole</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20lines%20of%20force%20as%20magnets" title=" magnetic lines of force as magnets"> magnetic lines of force as magnets</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20lines%20of%20force%20as%20waves" title=" magnetic lines of force as waves"> magnetic lines of force as waves</a> </p> <a href="https://publications.waset.org/abstracts/172916/consideration-of-magnetic-lines-of-force-as-magnets-produced-by-percussion-waves" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/172916.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">90</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1478</span> Comparison of the Thermal Characteristics of Induction Motor, Switched Reluctance Motor and Inset Permanent Magnet Motor for Electric Vehicle Application</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sadeep%20Sasidharan">Sadeep Sasidharan</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20B.%20Isha"> T. B. Isha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Modern day electric vehicles require compact high torque/power density motors for electric propulsion. This necessitates proper thermal management of the electric motors. The main focus of this paper is to compare the steady state thermal analysis of a conventional 20 kW 8/6 Switched Reluctance Motor (SRM) with that of an Induction Motor and Inset Permanent Magnet (IPM) motor of the same rating. The goal is to develop a proper thermal model of the three types of models for Finite Element Thermal Analysis. JMAG software is used for the development and simulation of the thermal models. The results show that the induction motor is subjected to more heating when used for electric vehicle application constantly, compared to the SRM and IPM. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electric%20vehicles" title="electric vehicles">electric vehicles</a>, <a href="https://publications.waset.org/abstracts/search?q=induction%20motor" title=" induction motor"> induction motor</a>, <a href="https://publications.waset.org/abstracts/search?q=inset%20permanent%20magnet%20motor" title=" inset permanent magnet motor"> inset permanent magnet motor</a>, <a href="https://publications.waset.org/abstracts/search?q=loss%20models" title=" loss models"> loss models</a>, <a href="https://publications.waset.org/abstracts/search?q=switched%20reluctance%20motor" title=" switched reluctance motor"> switched reluctance motor</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20analysis" title=" thermal analysis"> thermal analysis</a> </p> <a href="https://publications.waset.org/abstracts/99775/comparison-of-the-thermal-characteristics-of-induction-motor-switched-reluctance-motor-and-inset-permanent-magnet-motor-for-electric-vehicle-application" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/99775.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">1477</span> Magnetic and Optical Properties of GaFeMnN</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.Abbad">A.Abbad</a>, <a href="https://publications.waset.org/abstracts/search?q=H.A.Bentounes"> H.A.Bentounes</a>, <a href="https://publications.waset.org/abstracts/search?q=W.Benstaali"> W.Benstaali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The full-potential linearized augmented plane wave method (FP-LAPW) within the Generalized Gradient Approximation (GGA) is used to calculate the magnetic and optical properties of quaternary GaFeMnN. The results show that the compound becomes magnetic and half metallic and there is an apparition of peaks at low frequencies for the optical properties. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=FP-LAPW" title="FP-LAPW">FP-LAPW</a>, <a href="https://publications.waset.org/abstracts/search?q=LSDA" title=" LSDA"> LSDA</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20moment" title=" magnetic moment"> magnetic moment</a>, <a href="https://publications.waset.org/abstracts/search?q=reflectivity" title=" reflectivity "> reflectivity </a> </p> <a href="https://publications.waset.org/abstracts/26313/magnetic-and-optical-properties-of-gafemnn" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26313.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">524</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">1476</span> The Influence of Different Flux Patterns on Magnetic Losses in Electric Machine Cores</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Natheer%20Alatawneh">Natheer Alatawneh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The finite element analysis of magnetic fields in electromagnetic devices shows that the machine cores experience different flux patterns including alternating and rotating fields. The rotating fields are generated in different configurations range between circular and elliptical with different ratios between the major and minor axis of the flux locus. Experimental measurements on electrical steel exposed to different flux patterns disclose different magnetic losses in the samples under test. Consequently, electric machines require special attention during the cores loss calculation process to consider the flux patterns. In this study, a circular rotational single sheet tester is employed to measure the core losses in electric steel sample of M36G29. The sample was exposed to alternating field, circular field, and elliptical fields with axis ratios of 0.2, 0.4, 0.6 and 0.8. The measured data was implemented on 6-4 switched reluctance motor at three different frequencies of interest to the industry as 60 Hz, 400 Hz, and 1 kHz. The results disclose a high margin of error that may occur during the loss calculations if the flux patterns issue is neglected. The error in different parts of the machine associated with considering the flux patterns can be around 50%, 10%, and 2% at 60Hz, 400Hz, and 1 kHz, respectively. The future work will focus on the optimization of machine geometrical shape which has a primary effect on the flux pattern in order to minimize the magnetic losses in machine cores. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alternating%20core%20losses" title="alternating core losses">alternating core losses</a>, <a href="https://publications.waset.org/abstracts/search?q=electric%20machines" title=" electric machines"> electric machines</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20analysis" title=" finite element analysis"> finite element analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=rotational%20core%20losses" title=" rotational core losses"> rotational core losses</a> </p> <a href="https://publications.waset.org/abstracts/64360/the-influence-of-different-flux-patterns-on-magnetic-losses-in-electric-machine-cores" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/64360.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">252</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">1475</span> Computer Aided Engineering Optimization of Synchronous Reluctance Motor and Vibro-Acoustic Analysis for Lift Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ezio%20Bassi">Ezio Bassi</a>, <a href="https://publications.waset.org/abstracts/search?q=Francesco%20Vercesi"> Francesco Vercesi</a>, <a href="https://publications.waset.org/abstracts/search?q=Francesco%20Benzi"> Francesco Benzi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this study is to evaluate the potentiality of synchronous reluctance motors for lift systems by also evaluating the vibroacoustic behaviour of the motor. Two types of synchronous machines are designed, analysed, and compared with an equivalent induction motor, which is the more common solution in such gearbox applications. The machines' performance are further improved with optimization procedures based on multiobjective optimization genetic algorithm (MOGA). The difference between the two synchronous motors consists in the rotor geometry; a symmetric and an asymmetric rotor design were investigated. The evaluation of the vibroacoustic performance has been conducted with a multi-variable model and finite element software taking into account electromagnetic, mechanical, and thermal features of the motor, therefore carrying out a multi-physics analysis of the electrical machine. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=synchronous%20reluctance%20motor" title="synchronous reluctance motor">synchronous reluctance motor</a>, <a href="https://publications.waset.org/abstracts/search?q=vibro-acoustic" title=" vibro-acoustic"> vibro-acoustic</a>, <a href="https://publications.waset.org/abstracts/search?q=lift%20systems" title=" lift systems"> lift systems</a>, <a href="https://publications.waset.org/abstracts/search?q=genetic%20algorithm" title=" genetic algorithm"> genetic algorithm</a> </p> <a href="https://publications.waset.org/abstracts/137796/computer-aided-engineering-optimization-of-synchronous-reluctance-motor-and-vibro-acoustic-analysis-for-lift-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/137796.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">178</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">1474</span> Optimization of Switched Reluctance Motor for Drive System in Automotive Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Peniak">A. Peniak</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Makarovi%C4%8D"> J. Makarovič</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Rafajdus"> P. Rafajdus</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20D%C3%BAbravka"> P. Dúbravka</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this work is to optimize a Switched Reluctance Motor (SRM) for an automotive application, specifically for a fully electric car. A new optimization approach is proposed. This unique approach transforms automotive customer requirements into an optimization problem, based on sound knowledge of a SRM theory. The approach combines an analytical and a finite element analysis of the motor to quantify static nonlinear and dynamic performance parameters, as phase currents and motor torque maps, an output power and power losses in order to find the optimal motor as close to the reality as possible, within reasonable time. The new approach yields the optimal motor which is competitive with other types of already proposed motors for automotive applications. This distinctive approach can also be used to optimize other types of electrical motors, when parts specifically related to the SRM are adjusted accordingly. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=automotive" title="automotive">automotive</a>, <a href="https://publications.waset.org/abstracts/search?q=drive%20system" title=" drive system"> drive system</a>, <a href="https://publications.waset.org/abstracts/search?q=electric%20car" title=" electric car"> electric car</a>, <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=hybrid%20car" title=" hybrid car"> hybrid car</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=switched%20reluctance%20motor" title=" switched reluctance motor"> switched reluctance motor</a> </p> <a href="https://publications.waset.org/abstracts/13141/optimization-of-switched-reluctance-motor-for-drive-system-in-automotive-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13141.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">521</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">1473</span> First Principle Calculation of The Magnetic Properties of Mn-doped 6H-SiC</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Al%20Azri">M. Al Azri</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Elzain"> M. Elzain</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Bouziane"> K. Bouziane</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20M.%20Ch%C3%A9rif"> S. M. Chérif</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The electronic and magnetic properties of 6H-SiC with Mn impurities have been calculated using ab-initio calculations. Various configurations of Mn sites and Si and C vacancies were considered. The magnetic coupling between the two Mn atoms at substitutional and interstitials sites with and without vacancies is studied as a function of Mn atoms interatomic distance. It was found that the magnetic interaction energy decreases with increasing distance between the magnetic atoms. The energy levels appearing in the band gap due to vacancies and due to Mn impurities are determined. The calculated DOS’s are used to analyze the nature of the exchange interaction between the impurities. The band coupling model based on the p-d and d-d level repulsions between Mn and SiC has been used to describe the magnetism observed in each configuration. Furthermore, the impacts of applying U to Mn-d orbital on the magnetic moment have also been investigated. The results are used to understand the experimental data obtained on Mn- 6H-SiC (as-implanted and as –annealed) for various Mn concentration (CMn = 0.7%, 1.6%, 7%). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ab-initio%20calculations" title="ab-initio calculations">ab-initio calculations</a>, <a href="https://publications.waset.org/abstracts/search?q=diluted%20magnetic%20semiconductors" title=" diluted magnetic semiconductors"> diluted magnetic semiconductors</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20properties" title=" magnetic properties"> magnetic properties</a>, <a href="https://publications.waset.org/abstracts/search?q=silicon%20carbide" title=" silicon carbide"> silicon carbide</a> </p> <a href="https://publications.waset.org/abstracts/34017/first-principle-calculation-of-the-magnetic-properties-of-mn-doped-6h-sic" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34017.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">291</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">1472</span> Comparison between Simulation and Experimentally Observed Interactions between Two Different Sized Magnetic Beads in a Fluidic System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Olayinka%20Oduwole">Olayinka Oduwole</a>, <a href="https://publications.waset.org/abstracts/search?q=Steve%20Sheard"> Steve Sheard</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The magnetic separation of biological cells using super-magnetic beads has been used widely for various bioassays. These bioassays can further be integrated with other laboratory components to form a biosensor which can be used for cell sorting, mixing, purification, transport, manipulation etc. These bio-sensing applications have also been facilitated by the wide availability of magnetic beads which range in size and magnetic properties produced by different manufacturers. In order to improve the efficiency and separation capabilities of these biosensors, it is important to determine the magnetic force induced velocities and interaction of beads within the magnetic field; this will help biosensor users choose the desired magnetic bead for their specific application. This study presents for the first time the interaction between a pair of different sized super-paramagnetic beads suspended in a static fluid moving within a uniform magnetic field using a modified finite-time-finite-difference scheme. A captured video was used to record the trajectory pattern and a good agreement was obtained between the simulated trajectories and the video data. The model is, therefore, a good approximation for predicting the velocities as well as the interaction between various magnetic particles which differ in size and magnetic properties for bio-sensing applications requiring a low concentration of magnetic beads. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biosensor" title="biosensor">biosensor</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20field" title=" magnetic field"> magnetic field</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20separation" title=" magnetic separation"> magnetic separation</a>, <a href="https://publications.waset.org/abstracts/search?q=super-paramagnetic%20bead" title=" super-paramagnetic bead"> super-paramagnetic bead</a> </p> <a href="https://publications.waset.org/abstracts/40063/comparison-between-simulation-and-experimentally-observed-interactions-between-two-different-sized-magnetic-beads-in-a-fluidic-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40063.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">1471</span> Magnetic Field Induced Tribological Properties of Magnetic Fluid</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kinjal%20Trivedi">Kinjal Trivedi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ramesh%20V.%20Upadhyay"> Ramesh V. Upadhyay</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Magnetic fluid as a nanolubricant is a most recent field of study due to its unusual properties that can be tuned by applying a magnetic field. In present work, four ball tester has been used to investigate the tribological properties of the magnetic fluid having a 4 wt% of nanoparticles. The structural characterization of fluid shows crystallite size of particle is 11.7 nm and particles are nearly spherical in nature. The magnetic characterization shows the fluid saturation magnetization is 2.2 kA/m. The magnetic field applied using permanent strip magnet (0 to 1.6 mT) on the faces of the lock nut and fixing a solenoid (0 to 50 mT) around a shaft, such that shaft rotates freely. The magnetic flux line for both the systems analyzed using finite elemental analysis. The coefficient of friction increases with the application of magnetic field using permanent strip magnet compared to zero field value. While for the solenoid, it decreases at 20 mT. The wear scar diameter is lower for 1.1 mT and 20 mT when the magnetic field applied using permanent strip magnet and solenoid, respectively. The coefficient of friction and wear scar reduced by 29 % and 7 % at 20 mT using solenoid. The worn surface analysis carried out using Scanning Electron Microscope and Atomic Force Microscope to understand the wear mechanism. The results are explained on the basis of structure formation in a magnetic fluid upon application of magnetic field. It is concluded that the tribological properties of magnetic fluid depend on magnetic field and its applied direction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=four%20ball%20tester" title="four ball tester">four ball tester</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20fluid" title=" magnetic fluid"> magnetic fluid</a>, <a href="https://publications.waset.org/abstracts/search?q=nanolubricant" title=" nanolubricant"> nanolubricant</a>, <a href="https://publications.waset.org/abstracts/search?q=tribology" title=" tribology"> tribology</a> </p> <a href="https://publications.waset.org/abstracts/88005/magnetic-field-induced-tribological-properties-of-magnetic-fluid" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/88005.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">235</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">1470</span> Road Vehicle Recognition Using Magnetic Sensing Feature Extraction and Classification </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Xiao%20Chen">Xiao Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaoying%20Kong"> Xiaoying Kong</a>, <a href="https://publications.waset.org/abstracts/search?q=Min%20Xu"> Min Xu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a road vehicle detection approach for the intelligent transportation system. This approach mainly uses low-cost magnetic sensor and associated data collection system to collect magnetic signals. This system can measure the magnetic field changing, and it also can detect and count vehicles. We extend Mel Frequency Cepstral Coefficients to analyze vehicle magnetic signals. Vehicle type features are extracted using representation of cepstrum, frame energy, and gap cepstrum of magnetic signals. We design a 2-dimensional map algorithm using Vector Quantization to classify vehicle magnetic features to four typical types of vehicles in Australian suburbs: sedan, VAN, truck, and bus. Experiments results show that our approach achieves a high level of accuracy for vehicle detection and classification. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=vehicle%20classification" title="vehicle classification">vehicle classification</a>, <a href="https://publications.waset.org/abstracts/search?q=signal%20processing" title=" signal processing"> signal processing</a>, <a href="https://publications.waset.org/abstracts/search?q=road%20traffic%20model" title=" road traffic model"> road traffic model</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20sensing" title=" magnetic sensing"> magnetic sensing</a> </p> <a href="https://publications.waset.org/abstracts/86644/road-vehicle-recognition-using-magnetic-sensing-feature-extraction-and-classification" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/86644.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">320</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">1469</span> Mass Transfer in Reactor with Magnetic Field Generator</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tomasz%20Borowski">Tomasz Borowski</a>, <a href="https://publications.waset.org/abstracts/search?q=Dawid%20So%C5%82oducha"> Dawid Sołoducha</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafa%C5%82%20Rakoczy"> Rafał Rakoczy</a>, <a href="https://publications.waset.org/abstracts/search?q=Marian%20Kordas"> Marian Kordas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The growing interest in magnetic fields applications is visible due to the increased number of articles on this topic published in the last few years. In this study, the influence of various magnetic fields (MF) on the mass transfer process was examined. To carry out the prototype set-up equipped with an MF generator that is able to generate a pulsed magnetic field (PMF), oscillating magnetic field (OMF), rotating magnetic field (RMF) and static magnetic field (SMF) was used. To demonstrate the effect of MF’s on mass transfer, the calcium carbonate precipitation process was selected. To the vessel with attached conductometric probes and placed inside the generator, specific doses of calcium chloride and sodium carbonate were added. Electrical conductivity changes of the mixture inside the vessel were measured over time until equilibrium was established. Measurements were conducted for various MF strengths and concentrations of added chemical compounds. Obtained results were analyzed, which allowed to creation of mathematical correlation models showing the influence of MF’s on the studied process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mass%20transfer" title="mass transfer">mass transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=oscillating%20magnetic%20field" title=" oscillating magnetic field"> oscillating magnetic field</a>, <a href="https://publications.waset.org/abstracts/search?q=rotating%20magnetic%20field" title=" rotating magnetic field"> rotating magnetic field</a>, <a href="https://publications.waset.org/abstracts/search?q=static%20magnetic%20field" title=" static magnetic field"> static magnetic field</a> </p> <a href="https://publications.waset.org/abstracts/140936/mass-transfer-in-reactor-with-magnetic-field-generator" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/140936.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">206</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">1468</span> Artificial Intelligence Based Analysis of Magnetic Resonance Signals for the Diagnosis of Tissue Abnormalities</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kapila%20Warnakulasuriya">Kapila Warnakulasuriya</a>, <a href="https://publications.waset.org/abstracts/search?q=Walimuni%20Janaka%20Mendis"> Walimuni Janaka Mendis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, an artificial intelligence-based approach is developed to diagnose abnormal tissues in human or animal bodies by analyzing magnetic resonance signals. As opposed to the conventional method of generating an image from the magnetic resonance signals, which are then evaluated by a radiologist for the diagnosis of abnormalities, in the discussed approach, the magnetic resonance signals are analyzed by an artificial intelligence algorithm without having to generate or analyze an image. The AI-based program compares magnetic resonance signals with millions of possible magnetic resonance waveforms which can be generated from various types of normal tissues. Waveforms generated by abnormal tissues are then identified, and images of the abnormal tissues are generated with the possible location of them in the body for further diagnostic tests. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic%20resonance" title="magnetic resonance">magnetic resonance</a>, <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=magnetic%20waveform%20analysis" title=" magnetic waveform analysis"> magnetic waveform analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=abnormal%20tissues" title=" abnormal tissues"> abnormal tissues</a> </p> <a href="https://publications.waset.org/abstracts/164140/artificial-intelligence-based-analysis-of-magnetic-resonance-signals-for-the-diagnosis-of-tissue-abnormalities" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164140.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">90</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1467</span> Electronic and Magnetic Properties of the Dy₀.₀₆₂₅Y₀.₉₃₇₅ FeO₃ and Dy₀.₁₂₅ Y₀.₈₇₅ FeO₃ Perovskites</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sari%20Aouatef">Sari Aouatef</a>, <a href="https://publications.waset.org/abstracts/search?q=Larabi%20Amina"> Larabi Amina</a> </p> <p class="card-text"><strong>Abstract:</strong></p> First-principles calculations within density functional theory based are used to investigate the influence of doped rare earth elements on some properties of perovskite systems Dy₀.₀₆₂₅Y₀.₉₃₇₅FeO₃ and Dy₀.₁₂₅ Y₀.₈₇₅ FeO₃. The electronic and magnetic properties are studied by means of the full-potential linearized augmented plane wave method with Vasp code. The calculated densities of states presented in this work identify the semiconducting behavior for Dy₀.₁₂₅ Y₀.₈₇₅ FeO₃, and the semi-metallic behavior for Dy₀.₀₆₂₅Y₀.₉₃₇₅ FeO₃. Besides, to investigate magnetic properties of several compounds, four magnetic configurations are considered (ferromagnetic (FM), antiferromagnetic type A (A-AFM), antiferromagnetic type C (C-AFM) and antiferromagnetic type G (G-AFM). By doping the Dy element, the system shows different changes in the magnetic order and electronic structure. It is found that Dy₀.₀₆₂₅Y₀.₉₃₇₅ FeO₃ exhibits the strongest magnetic change corresponding to the transition to the ferromagnetic order with the largest magnetic moment of 4.997. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DFT" title="DFT">DFT</a>, <a href="https://publications.waset.org/abstracts/search?q=Perovskites" title=" Perovskites"> Perovskites</a>, <a href="https://publications.waset.org/abstracts/search?q=multiferroic" title=" multiferroic"> multiferroic</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20properties" title=" magnetic properties"> magnetic properties</a> </p> <a href="https://publications.waset.org/abstracts/144435/electronic-and-magnetic-properties-of-the-dy00625y09375-feo3-and-dy0125-y0875-feo3-perovskites" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/144435.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">141</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1466</span> Integration of Magnetoresistance Sensor in Microfluidic Chip for Magnetic Particles Detection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chao-Ming%20Su">Chao-Ming Su</a>, <a href="https://publications.waset.org/abstracts/search?q=Pei-Sheng%20Wu"> Pei-Sheng Wu</a>, <a href="https://publications.waset.org/abstracts/search?q=Yu-Chi%20Kuo"> Yu-Chi Kuo</a>, <a href="https://publications.waset.org/abstracts/search?q=Yin-Chou%20Huang"> Yin-Chou Huang</a>, <a href="https://publications.waset.org/abstracts/search?q=Tan-Yueh%20Chen"> Tan-Yueh Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Jefunnie%20Matahum"> Jefunnie Matahum</a>, <a href="https://publications.waset.org/abstracts/search?q=Tzong-Rong%20Ger"> Tzong-Rong Ger</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Application of magnetic particles (MPs) has been applied in biomedical field for many years. There are lots of advantages through this mediator including high biocompatibility and multi-diversified bio-applications. However, current techniques for evaluating the quantity of the magnetic-labeled sample assays are rare. In this paper, a Wheatstone bridge giant magnetoresistance (GMR) sensor integrated with a homemade detecting system was fabricated and used to quantify the concentration of MPs. The homemade detecting system has shown high detecting sensitivity of 10 μg/μl of MPs with optimized parameter vertical magnetic field 100 G, horizontal magnetic field 2 G and flow rate 0.4 ml/min. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic%20particles" title="magnetic particles">magnetic particles</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetoresistive%20sensors" title=" magnetoresistive sensors"> magnetoresistive sensors</a>, <a href="https://publications.waset.org/abstracts/search?q=micro%EF%AC%82uidics" title=" microﬂuidics"> microﬂuidics</a>, <a href="https://publications.waset.org/abstracts/search?q=biosensor" title=" biosensor"> biosensor</a> </p> <a href="https://publications.waset.org/abstracts/65704/integration-of-magnetoresistance-sensor-in-microfluidic-chip-for-magnetic-particles-detection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65704.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">1465</span> Optimization of Surface Coating on Magnetic Nanoparticles for Biomedical Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Xiao-Li%20Liu">Xiao-Li Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Ling-Yun%20Zhao"> Ling-Yun Zhao</a>, <a href="https://publications.waset.org/abstracts/search?q=Xing-Jie%20Liang"> Xing-Jie Liang</a>, <a href="https://publications.waset.org/abstracts/search?q=Hai-Ming%20Fan"> Hai-Ming Fan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Owing to their unique properties, magnetic nanoparticles have been used as diagnostic and therapeutic agents for biomedical applications. Highly monodispersed magnetic nanoparticles with controlled particle size and surface coating have been successfully synthesized as a model system to investigate the effect of surface coating on the T2 relaxivity and specific absorption rate (SAR) under an alternating magnetic field, respectively. Amongst, by using mPEG-g-PEI to solubilize oleic-acid capped 6 nm magnetic nanoparticles, the T2 relaxivity could be significantly increased by up to 4-fold as compared to PEG coated nanoparticles. Moreover, it largely enhances the cell uptake with a T2 relaxivity of 92.6 mM-1s-1 for in vitro cell MRI. As for hyperthermia agent, SAR value increase with the decreased thickness of PEG surface coating. By elaborate optimization of surface coating and particle size, a significant increase of SAR (up to 74%) could be achieved with a minimal variation on the saturation magnetization (<5%). The 19 nm magnetic nanoparticles with 2000 Da PEG exhibited the highest SAR of 930 W•g-1 among the samples, which can be maintained in various simulated physiological conditions. This systematic work provides a general strategy for the optimization of surface coating of magnetic core for high performance MRI contrast agent and hyperthermia agent. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic%20nanoparticles" title="magnetic nanoparticles">magnetic nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20hyperthermia" title=" magnetic hyperthermia"> magnetic hyperthermia</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20resonance%20imaging" title=" magnetic resonance imaging"> magnetic resonance imaging</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20modification" title=" surface modification"> surface modification</a> </p> <a href="https://publications.waset.org/abstracts/73963/optimization-of-surface-coating-on-magnetic-nanoparticles-for-biomedical-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/73963.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">510</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=reluctance%20magnetic&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=reluctance%20magnetic&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=reluctance%20magnetic&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=reluctance%20magnetic&page=5">5</a></li> <li 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