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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> 1496</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">1286</span> Antibody-Conjugated Nontoxic Arginine-Doped Fe3O4 Nanoparticles for Magnetic Circulating Tumor Cells Separation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=F.%20Kashanian">F. Kashanian</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20M.%20Masoudi"> M. M. Masoudi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Akbari"> A. Akbari</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Shamloo"> A. Shamloo</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20R.%20Zand"> M. R. Zand</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20S.%20Salehi"> S. S. Salehi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nano-sized materials present new opportunities in biology and medicine and they are used as biomedical tools for investigation, separation of molecules and cells. To achieve more effective cancer therapy, it is essential to select cancer cells exactly. This research suggests that using the antibody-functionalized nontoxic Arginine-doped magnetic nanoparticles (A-MNPs), has been prosperous in detection, capture, and magnetic separation of circulating tumor cells (CTCs) in tumor tissue. In this study, A-MNPs were synthesized via a simple precipitation reaction and directly immobilized Ep-CAM EBA-1 antibodies over superparamagnetic A-MNPs for Mucin BCA-225 in breast cancer cell. The samples were characterized by vibrating sample magnetometer (VSM), FT-IR spectroscopy, Tunneling Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM). These antibody-functionalized nontoxic A-MNPs were used to capture breast cancer cell. Through employing a strong permanent magnet, the magnetic separation was achieved within a few seconds. Antibody-Conjugated nontoxic Arginine-doped Fe<sub>3</sub>O<sub>4</sub> nanoparticles have the potential for the future study to capture CTCs which are released from tumor tissue and for drug delivery, and these results demonstrate that the antibody-conjugated A-MNPs can be used in magnetic hyperthermia techniques for cancer treatment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=tumor%20tissue" title="tumor tissue">tumor tissue</a>, <a href="https://publications.waset.org/abstracts/search?q=antibody" title=" antibody"> antibody</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20nanoparticle" title=" magnetic nanoparticle"> magnetic nanoparticle</a>, <a href="https://publications.waset.org/abstracts/search?q=CTCs%20capturing" title=" CTCs capturing"> CTCs capturing</a> </p> <a href="https://publications.waset.org/abstracts/67417/antibody-conjugated-nontoxic-arginine-doped-fe3o4-nanoparticles-for-magnetic-circulating-tumor-cells-separation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/67417.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">360</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">1285</span> 70% Ultra-Wide Tuning CMOS VCO Based on Magnetic Energy Adjustment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tai-Hsing%20Lee">Tai-Hsing Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhe-Wei%20Lin"> Zhe-Wei Lin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper demonstrates an ultra-wide tuning VCO implemented by CMOS 0.18μm process technology. By employing the proposed technique of magnetic energy adjustment in the oscillator tank, our proposed VCO achieves a wide frequency tuning range of 69.46% from 0.9 GHz to 1.86 GHz. The phase noise at an operating frequency of 1.86 GHz is -110 dBc/Hz (Offset frequency=1MHz). Furthermore, it achieves an excellent FOMT of 190.03 dBc/Hz. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=VCO" title="VCO">VCO</a>, <a href="https://publications.waset.org/abstracts/search?q=Ultra-wide%20tuning" title=" Ultra-wide tuning"> Ultra-wide tuning</a>, <a href="https://publications.waset.org/abstracts/search?q=Frequency%20tuning%20range" title=" Frequency tuning range"> Frequency tuning range</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20noise" title=" phase noise"> phase noise</a>, <a href="https://publications.waset.org/abstracts/search?q=Magnetic%20energy%20adjustment" title=" Magnetic energy adjustment"> Magnetic energy adjustment</a> </p> <a href="https://publications.waset.org/abstracts/190304/70-ultra-wide-tuning-cmos-vco-based-on-magnetic-energy-adjustment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/190304.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">40</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">1284</span> Magnetoelectric Effect in Polyvinylidene Fluoride Beta Phase Thin Films</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Belouadah%20Rabah">Belouadah Rabah</a>, <a href="https://publications.waset.org/abstracts/search?q=Guyomar%20Daneil"> Guyomar Daneil</a>, <a href="https://publications.waset.org/abstracts/search?q=Guiffard%20Benoit"> Guiffard Benoit</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The magnetoelectric (ME) materials has dielectric polarization induced by the magnetic field or induced magnetization under an electric field. A strong ME effect requires the simultaneous presence of magnetic moments and electric dipoles. In the last decades, extensive research has been conducted on the ME effect in single phase and composite materials. This article reported the results obtained with two samples, the first is mono layer of PVDF bi-stretched and the second is the multi layer PVDF bi-stretched with the Polyurethane filled with micro particles magnetic Fe3O4 (PU+2% Fe3O4). Compare with non ME material like Alumine, a large ME polarization coefficient for the two samples was obtained. The piezoelectric properties of the PVDF and elastic proprieties of Pu+2% Fe3O4 give a big linear ME coefficient of the multi layer PVDF/(Pu+2% Fe3O4) than in the monolayer of PVDF. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetoelectric%20effect" title="magnetoelectric effect">magnetoelectric effect</a>, <a href="https://publications.waset.org/abstracts/search?q=polymers" title=" polymers"> polymers</a>, <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=composites" title=" composites"> composites</a>, <a href="https://publications.waset.org/abstracts/search?q=films" title=" films"> films</a> </p> <a href="https://publications.waset.org/abstracts/13778/magnetoelectric-effect-in-polyvinylidene-fluoride-beta-phase-thin-films" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13778.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">1283</span> Vibration of Nanobeam Subjected to Constant Magnetic Field and Ramp-Type Thermal Loading under Non-Fourier Heat Conduction Law of Lord-Shulman</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamdy%20M.%20Youssef">Hamdy M. Youssef</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work, the usual Euler–Bernoulli nanobeam has been modeled in the context of Lord-Shulman thermoelastic theorem, which contains non-Fourier heat conduction law. The nanobeam has been subjected to a constant magnetic field and ramp-type thermal loading. The Laplace transform definition has been applied to the governing equations, and the solutions have been obtained by using a direct approach. The inversions of the Laplace transform have been calculated numerically by using Tzou approximation method. The solutions have been applied to a nanobeam made of silicon nitride. The distributions of the temperature increment, lateral deflection, strain, stress, and strain-energy density have been represented in figures with different values of the magnetic field intensity and ramp-time heat parameter. The value of the magnetic field intensity and ramp-time heat parameter have significant effects on all the studied functions, and they could be used as tuners to control the energy which has been generated through the nanobeam. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanobeam" title="nanobeam">nanobeam</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration" title=" vibration"> vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=constant%20magnetic%20field" title=" constant magnetic field"> constant magnetic field</a>, <a href="https://publications.waset.org/abstracts/search?q=ramp-type%20thermal%20loading" title=" ramp-type thermal loading"> ramp-type thermal loading</a>, <a href="https://publications.waset.org/abstracts/search?q=non-Fourier%20heat%20conduction%20law" title=" non-Fourier heat conduction law"> non-Fourier heat conduction law</a> </p> <a href="https://publications.waset.org/abstracts/155279/vibration-of-nanobeam-subjected-to-constant-magnetic-field-and-ramp-type-thermal-loading-under-non-fourier-heat-conduction-law-of-lord-shulman" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/155279.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">138</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">1282</span> Cr Induced Magnetization in Zinc-Blende ZnO-Based Diluted Magnetic Semiconductors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bakhtiar%20Ul%20Haq">Bakhtiar Ul Haq</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Ahmed"> R. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Shaari"> A. Shaari</a>, <a href="https://publications.waset.org/abstracts/search?q=Mazmira%20Binti%20Mohamed"> Mazmira Binti Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Nisar%20Ali"> Nisar Ali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The capability of exploiting the electronic charge and spin properties simultaneously in a single material has made diluted magnetic semiconductors (DMS) remarkable in the field of spintronics. We report the designing of DMS based on zinc-blend ZnO doped with Cr impurity. The full potential linearized augmented plane wave plus local orbital FP-L(APW+lo) method in density functional theory (DFT) has been adapted to carry out these investigations. For treatment of exchange and correlation energy, generalized gradient approximations have been used. Introducing Cr atoms in the matrix of ZnO has induced strong magnetic moment with ferromagnetic ordering at stable ground state. Cr:ZnO was found to favor the short range magnetic interaction that reflect the tendency of Cr clustering. The electronic structure of ZnO is strongly influenced in the presence of Cr impurity atoms where impurity bands appear in the band gap. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ZnO" title="ZnO">ZnO</a>, <a href="https://publications.waset.org/abstracts/search?q=density%20functional%20theory" title=" density functional theory"> density functional theory</a>, <a href="https://publications.waset.org/abstracts/search?q=diluted%20agnetic%20semiconductors" title=" diluted agnetic semiconductors"> diluted agnetic semiconductors</a>, <a href="https://publications.waset.org/abstracts/search?q=ferromagnetic%20materials" title=" ferromagnetic materials"> ferromagnetic materials</a>, <a href="https://publications.waset.org/abstracts/search?q=FP-L%28APW%2Blo%29" title=" FP-L(APW+lo)"> FP-L(APW+lo)</a> </p> <a href="https://publications.waset.org/abstracts/15537/cr-induced-magnetization-in-zinc-blende-zno-based-diluted-magnetic-semiconductors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15537.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">1281</span> Transfer of Electrical Energy by Magnetic Induction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Carlos%20Oliveira%20Santiago%20Filho">Carlos Oliveira Santiago Filho</a>, <a href="https://publications.waset.org/abstracts/search?q=Ciro%20Egoavil"> Ciro Egoavil</a>, <a href="https://publications.waset.org/abstracts/search?q=Eduardo%20Oliveira"> Eduardo Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=J%C3%A9ferson%20Galdino"> Jéferson Galdino</a>, <a href="https://publications.waset.org/abstracts/search?q=Moises%20Galileu"> Moises Galileu</a>, <a href="https://publications.waset.org/abstracts/search?q=Tiago%20Oliveira%20Correa"> Tiago Oliveira Correa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Transfer of Electrical Energy through resonant inductive magnetic coupling is demonstrated experimentally in a system containing coil primary for transmission and secondary reception. The topology used in the prototype of the Class-E amplifier, has been identified as optimal for power transfer applications. Characteristic of the inductor and the load are defined by the requirements of the resonant inductive system. The frequency limitation the of circuit restricts unloaded “Q-Factor”, quality factor of the coils and thus the link efﬁciency. With a suitable circuit, copper coil unloaded Q-Factors of over 1,000 can be achieved in the low Mhz region, enabling a cost-effective high Q coil assembly. The circuit is capable system capable of transmitting energy with direct current to load efﬁciency above 60% at 2 Mhz. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic%20induction" title="magnetic induction">magnetic induction</a>, <a href="https://publications.waset.org/abstracts/search?q=transfer%20of%20electrical%20energy" title=" transfer of electrical energy"> transfer of electrical energy</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20coupling" title=" magnetic coupling"> magnetic coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=Q-Factor" title=" Q-Factor"> Q-Factor</a> </p> <a href="https://publications.waset.org/abstracts/20457/transfer-of-electrical-energy-by-magnetic-induction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20457.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">518</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">1280</span> Integrated Electric Resistivity Tomography and Magnetic Techniques in a Mineralization Zone, Erkowit, Red Sea State, Sudan</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khalid%20M.%20Kheiralla">Khalid M. Kheiralla</a>, <a href="https://publications.waset.org/abstracts/search?q=Georgios%20Boutsis"> Georgios Boutsis</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Y.%20Abdelgalil"> Mohammed Y. Abdelgalil</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20A.%20Ali"> Mohammed A. Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Nuha%20E.%20Mohamed"> Nuha E. Mohamed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present study focus on integrated geoelectrical surveys carried out in the mineralization zone in Erkowit region, Eastern Sudan to determine the extensions of the potential ore deposits on the topographically high hilly area and under the cover of alluvium along the nearby wadi and to locate other occurrences if any. The magnetic method (MAG) and the electrical resistivity tomography (ERT) were employed for the survey. Eleven traverses were aligned approximately at right angles to the general strike of the rock formations. The disseminated sulfides are located on the alteration shear zone which is composed of granitic and dioritic highly ferruginated rock occupying the southwestern and central parts of the area, this was confirmed using thin and polished sections mineralogical analysis. The magnetic data indicates low magnetic values for wadi sedimentary deposits in its southern part of the area, and high anomalies which are suspected as gossans due to magnetite formed during wall rock alteration consequent to mineralization. The significant ERT images define low resistivity zone as traced as sheared zones which may associated with the main loci of ore deposition. By itself, no geophysical anomaly can simply be correlated with lithology, instead, magnetic and ERT anomalies raised due to variations in some specific physical properties of rocks which were extremely useful in mineral exploration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ERT" title="ERT">ERT</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic" title=" magnetic"> magnetic</a>, <a href="https://publications.waset.org/abstracts/search?q=mineralization" title=" mineralization"> mineralization</a>, <a href="https://publications.waset.org/abstracts/search?q=Red%20Sea" title=" Red Sea"> Red Sea</a>, <a href="https://publications.waset.org/abstracts/search?q=Sudan" title=" Sudan"> Sudan</a> </p> <a href="https://publications.waset.org/abstracts/18453/integrated-electric-resistivity-tomography-and-magnetic-techniques-in-a-mineralization-zone-erkowit-red-sea-state-sudan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18453.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">429</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">1279</span> Chitosan Magnetic Nanoparticles and Its Analytical Applications </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eman%20Alzahrani">Eman Alzahrani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Efficient extraction of proteins by removing interfering materials is necessary in proteomics, since most instruments cannot handle such contaminated sample matrices directly. In this study, chitosan-coated magnetic nanoparticles (CS-MNPs) for purification of myoglobin were successfully fabricated. First, chitosan (CS) was prepared by a deacetylation reaction during its extraction from shrimp-shell waste. Second, magnetic nanoparticles (MNPs) were synthesised, using the coprecipitation method, from aqueous Fe2+ and Fe3+ salt solutions by the addition of a base under an inert atmosphere, followed by modification of the surface of MNPs with chitosan. The morphology of the formed nanoparticles, which were about 23 nm in average diameter, was observed by transmission electron microscopy (TEM). In addition, nanoparticles were characterised using X-ray diffraction patterns (XRD), which showed the naked magnetic nanoparticles have a spinel structure and the surface modification did not result in phase change of the Fe3O4. The coating of MNPs was also demonstrated by scanning electron microscopy (SEM) analysis, energy dispersive analysis of X-ray spectroscopy (EDAX), and Fourier transform infrared (FT-IR) spectroscopy. The adsorption behaviour of MNPs and CS-MNPs towards myoglobin was investigated. It was found that the difference in adsorption capacity between MNPs and CS-MNPs was larger for CS-MNPs. This result makes CS-MNPs good adsorbents and attractive for using in protein extraction from biological samples. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chitosan" title="chitosan">chitosan</a>, <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=coprecipitation" title=" coprecipitation"> coprecipitation</a>, <a href="https://publications.waset.org/abstracts/search?q=adsorption" title=" adsorption "> adsorption </a> </p> <a href="https://publications.waset.org/abstracts/32886/chitosan-magnetic-nanoparticles-and-its-analytical-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32886.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">416</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">1278</span> Structure Domains Tuning Magnetic Anisotropy and Motivating Novel Electric Behaviors in LaCoO₃ Films</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dechao%20Meng">Dechao Meng</a>, <a href="https://publications.waset.org/abstracts/search?q=Yongqi%20Dong"> Yongqi Dong</a>, <a href="https://publications.waset.org/abstracts/search?q=Qiyuan%20Feng"> Qiyuan Feng</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhangzhang%20Cui"> Zhangzhang Cui</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiang%20Hu"> Xiang Hu</a>, <a href="https://publications.waset.org/abstracts/search?q=Haoliang%20Huang"> Haoliang Huang</a>, <a href="https://publications.waset.org/abstracts/search?q=Genhao%20Liang"> Genhao Liang</a>, <a href="https://publications.waset.org/abstracts/search?q=Huanhua%20Wang"> Huanhua Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Hua%20Zhou"> Hua Zhou</a>, <a href="https://publications.waset.org/abstracts/search?q=Hawoong%20Hong"> Hawoong Hong</a>, <a href="https://publications.waset.org/abstracts/search?q=Jinghua%20Guo"> Jinghua Guo</a>, <a href="https://publications.waset.org/abstracts/search?q=Qingyou%20Lu"> Qingyou Lu</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaofang%20Zhai"> Xiaofang Zhai</a>, <a href="https://publications.waset.org/abstracts/search?q=Yalin%20Lu"> Yalin Lu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Great efforts have been taken to reveal the intrinsic origins of emerging ferromagnetism (FM) in strained LaCoO₃ (LCO) films. However, some macro magnetic performances of LCO are still not well understood and even controversial, such as magnetic anisotropy. Determining and understanding magnetic anisotropy might help to find the true causes of FM in turn. Perpendicular magnetic anisotropy (PMA) was the first time to be directly observed in high-quality LCO films with different thickness. The in-plane (IP) and out of plane (OOP) remnant magnetic moment ratio of 30 unit cell (u.c.) films is as large as 20. The easy axis lays in the OOP direction with an IP/OOP coercive field ratio of 10. What's more, the PMA could be simply tuned by changing the thickness. With the thickness increases, the IP/OOP magnetic moment ratio remarkably decrease with magnetic easy axis changing from OOP to IP. Such a huge and tunable PMA performance exhibit strong potentials in fundamental researches or applications. What causes PMA is the first concern. More OOP orbitals occupation may be one of the micro reasons of PMA. A cluster-like magnetic domain pattern was found in 30 u.c. with no obvious color contrasts, similar to that of LaAlO₃/SrTiO₃ films. And the nanosize domains could not be totally switched even at a large OOP magnetic field of 23 T. It indicates strong IP characters or none OOP magnetism of some clusters. The IP magnetic domains might influence the magnetic performance and help to form PMA. Meanwhile some possible nonmagnetic clusters might be the reason why the measured moments of LCO films are smaller than the calculated values 2 μB/Co, one of the biggest confusions in LCO films.What tunes PMA seems much more interesting. Totally different magnetic domain patterns were found in 180 u.c. films with cluster magnetic domains surrounded by < 110 > cross-hatch lines. These lines were regarded as structure domain walls (DWs) determined by 3D reciprocal space mapping (RSM). Two groups of in-plane features with fourfold symmetry were observed near the film diffraction peaks in (002) 3D-RSM. One is along < 110 > directions with a larger intensity, which is well match the lines on the surfaces. The other is much weaker and along < 100 > directions, which is from the normal lattice titling of films deposited on cubic substrates. The < 110 > domain features obtained from (103) and (113) 3D-RSMs exhibit similar evolution of the DWs percentages and magnetic behavior. Structure domains and domain walls are believed to tune PMA performances by transform more IP magnetic moments to OOP. Last but not the least, thick films with lots of structure domains exhibit different electrical transport behaviors. A metal-to-insulator transition (MIT) and an angular dependent negative magnetic resistivity were observed near 150 K, higher than FM transition temperature but similar to that of spin-orbital coupling related 1/4 order diffraction peaks. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=structure%20domain" title="structure domain">structure domain</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20anisotropy" title=" magnetic anisotropy"> magnetic anisotropy</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20domain" title=" magnetic domain"> magnetic domain</a>, <a href="https://publications.waset.org/abstracts/search?q=domain%20wall" title=" domain wall"> domain wall</a>, <a href="https://publications.waset.org/abstracts/search?q=3D-RSM" title=" 3D-RSM"> 3D-RSM</a>, <a href="https://publications.waset.org/abstracts/search?q=strain" title=" strain"> strain</a> </p> <a href="https://publications.waset.org/abstracts/84468/structure-domains-tuning-magnetic-anisotropy-and-motivating-novel-electric-behaviors-in-lacoo3-films" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84468.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">153</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1277</span> Impact of Gd³⁺ Substitution on Structural, Optical and Magnetic Properties of ZnFe₂O₄ Nanoparticles </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Raghvendra%20Singh%20Yadav">Raghvendra Singh Yadav</a>, <a href="https://publications.waset.org/abstracts/search?q=Ivo%20Ku%C5%99itka"> Ivo Kuřitka</a>, <a href="https://publications.waset.org/abstracts/search?q=Jarmila%20%20Vilcakova"> Jarmila Vilcakova</a>, <a href="https://publications.waset.org/abstracts/search?q=Pavel%20Urbanek"> Pavel Urbanek</a>, <a href="https://publications.waset.org/abstracts/search?q=Michal%20Machovsky"> Michal Machovsky</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Skoda"> David Skoda</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this report, the impact of Gd³⁺ substitution in ZnFe₂O₄ spinel ferrite nanoparticles on structural, optical and magnetic properties was investigated. ZnFe₂₋ₓGdₓO₄ (x=0.00, 0.05, 0.10, 0.15, 0.20) nanoparticles were synthesized by honey-mediated sol-gel combustion method. X-ray diffraction, Raman Spectroscopy and Fourier Transform Infrared Spectroscopy confirmed the formation of cubic spinel ferrite crystal structure. The morphology and elemental analysis were studied using field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray spectroscopy, respectively. UV-Visible reflectance spectroscopy revealed band gap variation with concentration of Gd³⁺ substitution in ZnFe₂O₄ nanoparticles. Magnetic property was studied using vibrating sample magnetometer at room temperature. The synthesized spinel ferrite nanoparticles showed ferromagnetic behaviour. The evaluated magnetic parameters such as saturation magnetization, coercivity and remanence showed variation with Gd³⁺ substitution in spinel ferrite nanoparticles. This work was supported by the Ministry of Education, Youth and Sports of the Czech Republic – Program NPU I (LO1504). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sol-gel%20combustion%20method" title="sol-gel combustion method">sol-gel combustion method</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticles" title=" nanoparticles"> nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20property" title=" magnetic property"> magnetic property</a>, <a href="https://publications.waset.org/abstracts/search?q=optical%20property" title=" optical property"> optical property</a> </p> <a href="https://publications.waset.org/abstracts/78905/impact-of-gd3-substitution-on-structural-optical-and-magnetic-properties-of-znfe2o4-nanoparticles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78905.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">294</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">1276</span> Numerical Computation of Specific Absorption Rate and Induced Current for Workers Exposed to Static Magnetic Fields of MRI Scanners</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sherine%20Farrag">Sherine Farrag</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Currently-used MRI scanners in Cairo City possess static magnetic field (SMF) that varies from 0.25 up to 3T. More than half of them possess SMF of 1.5T. The SMF of the magnet determine the diagnostic power of a scanner, but not worker's exposure profile. This research paper presents an approach for numerical computation of induced electric fields and SAR values by estimation of fringe static magnetic fields. Iso-gauss line of MR was mapped and a polynomial function of the 7th degree was generated and tested. Induced current field due to worker motion in the SMF and SAR values for organs and tissues have been calculated. Results illustrate that the computation tool used permits quick accurate MRI iso-gauss mapping and calculation of SAR values which can then be used for assessment of occupational exposure profile of MRI operators. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=MRI%20occupational%20exposure" title="MRI occupational exposure">MRI occupational exposure</a>, <a href="https://publications.waset.org/abstracts/search?q=MRI%20safety" title=" MRI safety"> MRI safety</a>, <a href="https://publications.waset.org/abstracts/search?q=induced%20current%20density" title=" induced current density"> induced current density</a>, <a href="https://publications.waset.org/abstracts/search?q=specific%20absorption%20rate" title=" specific absorption rate"> specific absorption rate</a>, <a href="https://publications.waset.org/abstracts/search?q=static%20magnetic%20fields" title=" static magnetic fields"> static magnetic fields</a> </p> <a href="https://publications.waset.org/abstracts/13235/numerical-computation-of-specific-absorption-rate-and-induced-current-for-workers-exposed-to-static-magnetic-fields-of-mri-scanners" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13235.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">430</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">1275</span> Self-Assembly of Monodisperse Oleic Acid-Capped Superparamagnetic Iron Oxide Nanoparticles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Huseyin%20Kavas">Huseyin Kavas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Oleic acid (OA) capped superparamagnetic iron oxide nanoparticles (SPION) were synthesized by a thermal decomposition method. The composition of nanoparticles was confirmed by X-ray powder diffraction, and the morphology of particles was investigated by Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM), and Transmission electron microscopy (TEM). The crystalline and particle size distribution of SPIONS capped with OA were investigated with a mean size of 6.99 nm and 8.9 nm, respectively. It was found that SPIONS have superparamagnetic characteristics with a saturation magnetization value of 64 emu/g. The thin film form of self-assembled SPIONS was fabricated by coating techniques of spin coating and dip coating. SQUID-VSM magnetometer and FMR techniques were performed in order to evaluate the magnetic properties of thin films, especially the existence of magnetic anisotropy. The thin films with magnetic anisotropy were obtained by self-assembled monolayers of SPION. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic%20materials" title="magnetic materials">magnetic materials</a>, <a href="https://publications.waset.org/abstracts/search?q=nanostructures" title=" nanostructures"> nanostructures</a>, <a href="https://publications.waset.org/abstracts/search?q=self-assembly" title=" self-assembly"> self-assembly</a>, <a href="https://publications.waset.org/abstracts/search?q=FMR" title=" FMR"> FMR</a> </p> <a href="https://publications.waset.org/abstracts/158967/self-assembly-of-monodisperse-oleic-acid-capped-superparamagnetic-iron-oxide-nanoparticles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158967.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">107</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">1274</span> Determination of Thermophysical Properties of Water Based Magnetic Nanofluids</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ey%C3%BCphan%20Manay">Eyüphan Manay</a>, <a href="https://publications.waset.org/abstracts/search?q=Bayram%20Sahin"> Bayram Sahin</a>, <a href="https://publications.waset.org/abstracts/search?q=Emre%20Mandev"> Emre Mandev</a>, <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20Ates"> Ibrahim Ates</a>, <a href="https://publications.waset.org/abstracts/search?q=Tuba%20Yetim"> Tuba Yetim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, it was aimed to determine the thermophysical properties of two different magnetic nanofluids (NiFe<sub>2</sub>O<sub>4</sub>-water and CoFe<sub>2</sub>O<sub>4</sub>-water). Magnetic nanoparticles were dispersed into the pure water at different volume fractions from 0 vol.% to 4 vol.%. The measurements were performed in the temperature range of 15 <sup>o</sup>C-55 <sup>o</sup>C. In order to get better idea on the temperature dependent thermophysical properties of magnetic nanofluids (MNFs), viscosity and thermal conductivity measurements were made. SEM images of both NiFe<sub>2</sub>O<sub>4</sub> and CoFe<sub>2</sub>O<sub>4 </sub>nanoparticles were used in order to confirm the average dimensions. The measurements showed that the thermal conductivity of MNFs increased with an increase in the volume fraction as well as viscosity. Increase in the temperature of both MNFs resulted in an increase in the thermal conductivity and a decrease in the viscosity. Based on the measured data, the correlations for both the viscosity and the thermal conductivity were presented with respect to solid volume ratio and temperature. Effective thermal conductivity of the prepared MNFs was also calculated. The results indicated that water based NiFe<sub>2</sub>O<sub>4 </sub>nanofluid had higher thermal conductivity than that of the CoFe<sub>2</sub>O<sub>4</sub>. Once the viscosity values of both MNFs were compared, almost no difference was observed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic%20nanofluids" title="magnetic nanofluids">magnetic nanofluids</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20conductivity" title=" thermal conductivity"> thermal conductivity</a>, <a href="https://publications.waset.org/abstracts/search?q=viscosity" title=" viscosity"> viscosity</a>, <a href="https://publications.waset.org/abstracts/search?q=nife2o4-water" title=" nife2o4-water"> nife2o4-water</a>, <a href="https://publications.waset.org/abstracts/search?q=cofe2o4-water" title=" cofe2o4-water"> cofe2o4-water</a> </p> <a href="https://publications.waset.org/abstracts/53840/determination-of-thermophysical-properties-of-water-based-magnetic-nanofluids" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53840.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">261</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">1273</span> 2D RF ICP Torch Modelling with Fluid Plasma</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mokhtar%20Labiod">Mokhtar Labiod</a>, <a href="https://publications.waset.org/abstracts/search?q=Nabil%20Ikhlef"> Nabil Ikhlef</a>, <a href="https://publications.waset.org/abstracts/search?q=Keltoum%20Bouherine"> Keltoum Bouherine</a>, <a href="https://publications.waset.org/abstracts/search?q=Olivier%20Leroy"> Olivier Leroy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A numerical model for the radio-frequency (RF) Argon discharge chamber is developed to simulate the low pressure low temperature inductively coupled plasma. This model will be of fundamental importance in the design of the plasma magnetic control system. Electric and magnetic fields inside the discharge chamber are evaluated by solving a magnetic vector potential equation. To start with, the equations of the ideal magnetohydrodynamics theory will be presented describing the basic behaviour of magnetically confined plasma and equations are discretized with finite element method in cylindrical coordinates. The discharge chamber is assumed to be axially symmetric and the plasma is treated as a compressible gas. Plasma generation due to ionization is added to the continuity equation. Magnetic vector potential equation is solved for the electromagnetic fields. A strong dependence of the plasma properties on the discharge conditions and the gas temperature is obtained. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=direct-coupled%20model" title="direct-coupled model">direct-coupled model</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetohydrodynamic" title=" magnetohydrodynamic"> magnetohydrodynamic</a>, <a href="https://publications.waset.org/abstracts/search?q=modelling" title=" modelling"> modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=plasma%20torch%20simulation" title=" plasma torch simulation"> plasma torch simulation</a> </p> <a href="https://publications.waset.org/abstracts/38779/2d-rf-icp-torch-modelling-with-fluid-plasma" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38779.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">433</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">1272</span> Core-Shell Type Magnetic Nanoparticles for Targeted Drug Delivery</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yogita%20Patil-Sen">Yogita Patil-Sen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Magnetic nanoparticles such as those made of iron oxide have been widely explored as biocatalysts, contrast agents, and drug delivery systems. However, some of the challenges associated with these particles are agglomeration and biocompatibility, which lead to concern of toxicity of the particles, especially for drug delivery applications. Coating the particles with biocompatible materials such as lipids and peptides have shown to improve the mentioned issues. Thus, these core-shell type nanoparticles are emerging as the new class of nanomaterials for targeted drug delivery applications. In this study, various types of core-shell magnetic nanoparticles are prepared and characterized using techniques, such as Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Vibrating Sample Magnetometer (VSM) and Thermogravimetric Analysis (TGA). The heating ability of nanoparticles is tested under oscillating magnetic field. The efficacy of the nanoparticles as drug carrier is also investigated. The loading of an anticancer drug, Doxorubicin at 18 °C is measured up to 48 hours using UV-visible spectrophotometer. The drug release profile is obtained under thermal incubation condition at 37 °C and compared with that under the influence of oscillating field. The results suggest that the core-shell nanoparticles exhibit superparamagnetic behaviour, although, coating reduces the magnetic properties of the particles. Both the uncoated and coated particles show good heating ability, again it is observed that coating decreases the heating behaviour of the particles. However, coated particles show higher drug loading efficiency than the uncoated particles and the drug release is much more controlled under the oscillating magnetic field. Thus, the results strongly indicate the suitability of the prepared core-shell type nanoparticles as drug delivery vehicles and their potential in magnetic hyperthermia applications and for hyperthermia cancer therapy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=core-shell" title="core-shell">core-shell</a>, <a href="https://publications.waset.org/abstracts/search?q=hyperthermia" title=" hyperthermia"> hyperthermia</a>, <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=targeted%20drug%20delivery" title=" targeted drug delivery"> targeted drug delivery</a> </p> <a href="https://publications.waset.org/abstracts/70256/core-shell-type-magnetic-nanoparticles-for-targeted-drug-delivery" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/70256.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">336</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">1271</span> Control of Doxorubicin Release Rate from Magnetic PLGA Nanoparticles Using a Non-Permanent Magnetic Field</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=In%C3%AAs%20N.%20Pe%C3%A7a">Inês N. Peça </a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Bicho"> A. Bicho</a>, <a href="https://publications.waset.org/abstracts/search?q=Rui%20Gardner"> Rui Gardner</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Margarida%20Cardoso"> M. Margarida Cardoso</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Inorganic/organic nanocomplexes offer tremendous scope for future biomedical applications, including imaging, disease diagnosis and drug delivery. The combination of Fe3O4 with biocompatible polymers to produce smart drug delivery systems for use in pharmaceutical formulation present a powerful tool to target anti-cancer drugs to specific tumor sites through the application of an external magnetic field. In the present study, we focused on the evaluation of the effect of the magnetic field application time on the rate of drug release from iron oxide polymeric nanoparticles. Doxorubicin, an anticancer drug, was selected as the model drug loaded into the nanoparticles. Nanoparticles composed of poly(d-lactide-co-glycolide (PLGA), a biocompatible polymer already approved by FDA, containing iron oxide nanoparticles (MNP) for magnetic targeting and doxorubicin (DOX) were synthesized by the o/w solvent extraction/evaporation method and characterized by scanning electron microscopy (SEM), by dynamic light scattering (DLS), by inductively coupled plasma-atomic emission spectrometry and by Fourier transformed infrared spectroscopy. The produced particles yielded smooth surfaces and spherical shapes exhibiting a size between 400 and 600 nm. The effect of the magnetic doxorubicin loaded PLGA nanoparticles produced on cell viability was investigated in mammalian CHO cell cultures. The results showed that unloaded magnetic PLGA nanoparticles were nontoxic while the magnetic particles without polymeric coating show a high level of toxicity. Concerning the therapeutic activity doxorubicin loaded magnetic particles cause a remarkable enhancement of the cell inhibition rates compared to their non-magnetic counterpart. In vitro drug release studies performed under a non-permanent magnetic field show that the application time and the on/off cycle duration have a great influence with respect to the final amount and to the rate of drug release. In order to determine the mechanism of drug release, the data obtained from the release curves were fitted to the semi-empirical equation of the the Korsmeyer-Peppas model that may be used to describe the Fickian and non-Fickian release behaviour. Doxorubicin release mechanism has shown to be governed mainly by Fickian diffusion. The results obtained show that the rate of drug release from the produced magnetic nanoparticles can be modulated through the magnetic field time application. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=drug%20delivery" title="drug delivery">drug delivery</a>, <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=PLGA%20nanoparticles" title=" PLGA nanoparticles"> PLGA nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=controlled%20release%20rate" title="controlled release rate ">controlled release rate </a> </p> <a href="https://publications.waset.org/abstracts/26755/control-of-doxorubicin-release-rate-from-magnetic-plga-nanoparticles-using-a-non-permanent-magnetic-field" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26755.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">259</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">1270</span> QI Wireless Charging a Scope of Magnetic Inductive Coupling </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sreenesh%20Shashidharan">Sreenesh Shashidharan</a>, <a href="https://publications.waset.org/abstracts/search?q=Umesh%20Gaikwad"> Umesh Gaikwad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> QI or 'Chee' which is an interface standard for inductive electrical power transfer over distances of up to 4 cm (1.6 inches). The Qi system comprises a power transmission pad and a compatible receiver in a portable device which is placed on top of the power transmission pad, which charges using the principle of electromagnetic induction. An alternating current is passed through the transmitter coil, generating a magnetic field. This, in turn, induces a voltage in the receiver coil; this can be used to power a mobile device or charge a battery. The efficiency of the power transfer depends on the coupling (k) between the inductors and their quality (Q) The coupling is determined by the distance between the inductors (z) and the relative size (D2 /D). The coupling is further determined by the shape of the coils and the angle between them. If the receiver coil is at a certain distance to the transmitter coil, only a fraction of the magnetic flux, which is generated by the transmitter coil, penetrates the receiver coil and contributes to the power transmission. The more flux reaches the receiver, the better the coils are coupled. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=inductive%20electric%20power" title="inductive electric power">inductive electric power</a>, <a href="https://publications.waset.org/abstracts/search?q=electromagnetic%20induction" title=" electromagnetic induction"> electromagnetic induction</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20flux" title=" magnetic flux"> magnetic flux</a>, <a href="https://publications.waset.org/abstracts/search?q=coupling" title=" coupling"> coupling</a> </p> <a href="https://publications.waset.org/abstracts/20622/qi-wireless-charging-a-scope-of-magnetic-inductive-coupling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20622.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">732</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">1269</span> Band Structure Computation of GaMnAs Using the Multiband k.p Theory</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khadijah%20B.%20Alziyadi">Khadijah B. Alziyadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Khawlh%20A.%20Alzubaidi"> Khawlh A. Alzubaidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Amor%20M.%20Alsayari"> Amor M. Alsayari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, GaMnAs diluted magnetic semiconductors(DMSs) have received considerable attention because they combine semiconductor and magnetic properties. GaMnAs has been used as a model DMS and as a test bed for many concepts and functionalities of spintronic devices. In this paper, a theoretical study on the band structure ofGaMnAswill be presented. The model that we used in this study is the 8-band k.p methodwherespin-orbit interaction, spin splitting, and strain are considered. The band structure of GaMnAs will be calculated in different directions in the reciprocal space. The effect of manganese content on the GaMnAs band structure will be discussed. Also, the influence of strain, which varied continuously from tensile to compressive, on the different bands will be studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=band%20structure" title="band structure">band structure</a>, <a href="https://publications.waset.org/abstracts/search?q=diluted%20magnetic%20semiconductor" title=" diluted magnetic semiconductor"> diluted magnetic semiconductor</a>, <a href="https://publications.waset.org/abstracts/search?q=k.p%20method" title=" k.p method"> k.p method</a>, <a href="https://publications.waset.org/abstracts/search?q=strain" title=" strain"> strain</a> </p> <a href="https://publications.waset.org/abstracts/152997/band-structure-computation-of-gamnas-using-the-multiband-kp-theory" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152997.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">152</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">1268</span> Investigation on Electronic and Magnetic Properties of Transition Metals Doped Zinc Selenide</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Bentata">S. Bentata</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20Benstaali"> W. Benstaali</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Abbad"> A. Abbad</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20A.%20Bentounes"> H. A. Bentounes</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Bouadjemi"> B. Bouadjemi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The full potential linear augmented plane wave (FPLAPW) based on density-functional theory (DFT) is employed to study the electronic, magnetic and optical properties of some transition metals doped ZnSe. Calculations are carried out by varying the doped atoms. Four 3D transition elements were used as a dopant: Cr, Mn, Co and Cu in order to induce spin polarization. Our results show that, Mn and Cu-doped ZnSe could be used in spintronic devices only if additional dopants are introduced, on the contrary, transition elements showing delocalized quality such as Cr, and Co doped ZnSe might be promising candidates for application in spintronic. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=spin-up" title="spin-up">spin-up</a>, <a href="https://publications.waset.org/abstracts/search?q=spin-down" title=" spin-down"> spin-down</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=transition%20metal" title=" transition metal"> transition metal</a>, <a href="https://publications.waset.org/abstracts/search?q=composite%20materials" title=" composite materials"> composite materials</a> </p> <a href="https://publications.waset.org/abstracts/1433/investigation-on-electronic-and-magnetic-properties-of-transition-metals-doped-zinc-selenide" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1433.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">273</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1267</span> Measurements of Environmental Pollution in Chemical Fertilizer Industrial Area Using Magnetic Susceptibility Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ramadhani%20Yasyfi%20Cysela">Ramadhani Yasyfi Cysela</a>, <a href="https://publications.waset.org/abstracts/search?q=Adinda%20Syifa%20Azhari"> Adinda Syifa Azhari</a>, <a href="https://publications.waset.org/abstracts/search?q=Eleonora%20Agustine"> Eleonora Agustine</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The World Health Organization (WHO) estimates that about a quarter of the diseases facing mankind today occur due to environmental pollution. The soil is a part of environment that have a widespread problem. The contaminated soil should no longer be used to grow food because the chemicals can leech into the food and harm people who eat it. The chemical fertilizer industry gives specific effect due to soil pollution. To determine ammonia and urea emissions from fertilizer industry, we can use physical characteristic of soil, which is magnetic susceptibility. Rock magnetism is used as a proxy indicator to determine changes in physical properties. Magnetic susceptibilities of samples in low and high frequency have been measured by Bartington MS2B magnetic susceptibility measurement device. The sample was taken from different area which located closer by pollution source and far from the pollution source. The susceptibility values of polluted samples in topsoil were quite low, with range from 187.1- 494.8 [x 10-8 m3 kg-1] when free polluted area’s sample has high values (1188.7- 2237.8 [x 10-8 m3 kg-1 ]). From this studies shows that susceptibility values in areas of the fertilizer industry are lower than the free polluted area. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=environmental" title="environmental">environmental</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20susceptibility" title=" magnetic susceptibility"> magnetic susceptibility</a>, <a href="https://publications.waset.org/abstracts/search?q=rock%20magnetism" title=" rock magnetism"> rock magnetism</a>, <a href="https://publications.waset.org/abstracts/search?q=soil%20pollution" title=" soil pollution"> soil pollution</a> </p> <a href="https://publications.waset.org/abstracts/65586/measurements-of-environmental-pollution-in-chemical-fertilizer-industrial-area-using-magnetic-susceptibility-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65586.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">357</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">1266</span> Device for Thermo-Magnetic Depolymerisation of Plant Biomass Prior to Methane Fermentation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Miros%C5%82aw%20Krzemieniewski">Mirosław Krzemieniewski</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcin%20Zieli%C5%84ski"> Marcin Zieliński</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcin%20D%C4%99bowski"> Marcin Dębowski</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This publication presents a device for depolymerisation of plant substrates applicable to agricultural biogas plants and closed-chamber sewage treatment plants where sludge fermentation is bolstered with plant mass. The device consists of a tank with a cover equipped with a heating system, an inlet for the substrate, and an outlet for the depolymerised substrate. Within the tank, a magnet shaft encased in a spiral casing is attached, equipped on its upper end with an internal magnetic disc. A motoreducer is mounted on an external magnetic disc located on the centre of the cover. Depolymerisation of the plant substrate allows for substrate destruction at much lower power levels than by conventional means. The temperature within the reactor can be lowered by 40% in comparison to existing designs. During the depolymerisation process, free radicals are generated within the magnetic field, oxidizing the conditioned substrate and promoting biodegradation. Thus, the fermentation time in the fermenters is reduced by approximately 20%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=depolymerisation" title="depolymerisation">depolymerisation</a>, <a href="https://publications.waset.org/abstracts/search?q=pre-treatment" title=" pre-treatment"> pre-treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=biomass" title=" biomass"> biomass</a>, <a href="https://publications.waset.org/abstracts/search?q=fermentation" title=" fermentation"> fermentation</a> </p> <a href="https://publications.waset.org/abstracts/3543/device-for-thermo-magnetic-depolymerisation-of-plant-biomass-prior-to-methane-fermentation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3543.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">518</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">1265</span> A Study on the Magnetic and Submarine Geology Structure of TA22 Seamount in Lau Basin, Tonga</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Soon%20Young%20Choi">Soon Young Choi</a>, <a href="https://publications.waset.org/abstracts/search?q=Chan%20Hwan%20Kim"> Chan Hwan Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Chan%20Hong%20Park"> Chan Hong Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyung%20Rae%20Kim"> Hyung Rae Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Myoung%20Hoon%20Lee"> Myoung Hoon Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyeon-Yeong%20Park"> Hyeon-Yeong Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We performed the marine magnetic, bathymetry and seismic survey at the TA22 seamount (in the Lau basin, SW Pacific) for finding the submarine hydrothermal deposits in October 2009. We acquired magnetic and bathymetry data sets by suing Overhouser Proton Magnetometer SeaSPY (Marine Magnetics Co.), Multi-beam Echo Sounder EM120 (Kongsberg Co.). We conducted the data processing to obtain detailed seabed topography, magnetic anomaly, reduction to the pole (RTP) and magnetization. Based on the magnetic properties result, we analyzed submarine geology structure of TA22 seamount with post-processed seismic profile. The detailed bathymetry of the TA22 seamount showed the left and right crest parts that have caldera features in each crest central part. The magnetic anomaly distribution of the TA22 seamount regionally displayed high magnetic anomalies in northern part and the low magnetic anomalies in southern part around the caldera features. The RTP magnetic anomaly distribution of the TA22 seamount presented commonly high magnetic anomalies in the each caldera central part. Also, it represented strong anomalies at the inside of caldera rather than outside flank of the caldera. The magnetization distribution of the TA22 seamount showed the low magnetization zone in the center of each caldera, high magnetization zone in the southern and northern east part. From analyzed the seismic profile map, The TA22 seamount area is showed for the inferred small mounds inside each caldera central part and it assumes to make possibility of sills by the magma in cases of the right caldera. Taking into account all results of this study (bathymetry, magnetic anomaly, RTP, magnetization, seismic profile) with rock samples at the left caldera area in 2009 survey, we suppose the possibility of hydrothermal deposits at mounds in each caldera central part and at outside flank of the caldera representing the low magnetization zone. We expect to have the better results by combined modeling from this study data with the other geological data (ex. detailed gravity, 3D seismic, petrologic study results and etc). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=detailed%20bathymetry" title="detailed bathymetry">detailed bathymetry</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20anomaly" title=" magnetic anomaly"> magnetic anomaly</a>, <a href="https://publications.waset.org/abstracts/search?q=seamounts" title=" seamounts"> seamounts</a>, <a href="https://publications.waset.org/abstracts/search?q=seismic%20profile" title=" seismic profile"> seismic profile</a>, <a href="https://publications.waset.org/abstracts/search?q=SW%20Pacific" title=" SW Pacific"> SW Pacific</a> </p> <a href="https://publications.waset.org/abstracts/65090/a-study-on-the-magnetic-and-submarine-geology-structure-of-ta22-seamount-in-lau-basin-tonga" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65090.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">403</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">1264</span> Magnetic Activated Carbon: Preparation, Characterization, and Application for Vanadium Removal </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hakimeh%20Sharififard">Hakimeh Sharififard</a>, <a href="https://publications.waset.org/abstracts/search?q=Mansooreh%20Soleimani"> Mansooreh Soleimani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work, the magnetic activated carbon nanocomposite (Fe-CAC) has been synthesized by anchorage iron hydr(oxide) nanoparticles onto commercial activated carbon (CAC) surface and characterized using BET, XRF, SEM techniques. The influence of various removal parameters such as pH, contact time and initial concentration of vanadium on vanadium removal was evaluated using CAC and Fe-CAC in batch method. The sorption isotherms were studied using Langmuir, Freundlich and Dubinin–Radushkevich (D–R) isotherm models. These equilibrium data were well described by the Freundlich model. Results showed that CAC had the vanadium adsorption capacity of 37.87 mg/g, while the Fe-AC was able to adsorb 119.01 mg/g of vanadium. Kinetic data was found to confirm pseudo-second-order kinetic model for both adsorbents. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic%20activated%20carbon" title="magnetic activated carbon">magnetic activated carbon</a>, <a href="https://publications.waset.org/abstracts/search?q=remove" title=" remove"> remove</a>, <a href="https://publications.waset.org/abstracts/search?q=vanadium" title=" vanadium"> vanadium</a>, <a href="https://publications.waset.org/abstracts/search?q=nanocomposite" title=" nanocomposite"> nanocomposite</a>, <a href="https://publications.waset.org/abstracts/search?q=freundlich" title=" freundlich "> freundlich </a> </p> <a href="https://publications.waset.org/abstracts/23874/magnetic-activated-carbon-preparation-characterization-and-application-for-vanadium-removal" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23874.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">463</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">1263</span> Evaluation of the Heating Capability and in vitro Hemolysis of Nanosized MgxMn1-xFe2O4 (x = 0.3 and 0.4) Ferrites Prepared by Sol-gel Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Laura%20Elena%20De%20Le%C3%B3n%20Prado">Laura Elena De León Prado</a>, <a href="https://publications.waset.org/abstracts/search?q=Dora%20Alicia%20Cort%C3%A9s%20Hern%C3%A1ndez"> Dora Alicia Cortés Hernández</a>, <a href="https://publications.waset.org/abstracts/search?q=Javier%20S%C3%A1nchez"> Javier Sánchez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Among the different cancer treatments that are currently used, hyperthermia has a promising potential due to the multiple benefits that are obtained by this technique. In general terms, hyperthermia is a method that takes advantage of the sensitivity of cancer cells to heat, in order to damage or destroy them. Within the different ways of supplying heat to cancer cells and achieve their destruction or damage, the use of magnetic nanoparticles has attracted attention due to the capability of these particles to generate heat under the influence of an external magnetic field. In addition, these nanoparticles have a high surface area and sizes similar or even lower than biological entities, which allow their approaching and interaction with a specific region of interest. The most used magnetic nanoparticles for hyperthermia treatment are those based on iron oxides, mainly magnetite and maghemite, due to their biocompatibility, good magnetic properties and chemical stability. However, in order to fulfill more efficiently the requirements that demand the treatment of magnetic hyperthermia, there have been investigations using ferrites that incorporate different metallic ions, such as Mg, Mn, Co, Ca, Ni, Cu, Li, Gd, etc., in their structure. This paper reports the synthesis of nanosized Mg<sub>x</sub>Mn<sub>1-x</sub>Fe<sub>2</sub>O<sub>4</sub> (x = 0.3 and 0.4) ferrites by sol-gel method and their evaluation in terms of heating capability and <em>in vitro</em> hemolysis to determine the potential use of these nanoparticles as thermoseeds for the treatment of cancer by magnetic hyperthermia. It was possible to obtain ferrites with nanometric sizes, a single crystalline phase with an inverse spinel structure and a behavior near to that of superparamagnetic materials. Additionally, at concentrations of 10 mg of magnetic material per mL of water, it was possible to reach a temperature of approximately 45°C, which is within the range of temperatures used for the treatment of hyperthermia. The results of the <em>in vitro</em> hemolysis assay showed that, at the concentrations tested, these nanoparticles are non-hemolytic, as their percentage of hemolysis is close to zero. Therefore, these materials can be used as thermoseeds for the treatment of cancer by magnetic hyperthermia. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ferrites" title="ferrites">ferrites</a>, <a href="https://publications.waset.org/abstracts/search?q=heating%20capability" title=" heating capability"> heating capability</a>, <a href="https://publications.waset.org/abstracts/search?q=hemolysis" title=" hemolysis"> hemolysis</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoparticles" title=" nanoparticles"> nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=sol-gel" title=" sol-gel"> sol-gel</a> </p> <a href="https://publications.waset.org/abstracts/65208/evaluation-of-the-heating-capability-and-in-vitro-hemolysis-of-nanosized-mgxmn1-xfe2o4-x-03-and-04-ferrites-prepared-by-sol-gel-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65208.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">342</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">1262</span> Use of Opti-Jet Cs Md1mr Device for Biocide Aerosolisation in 3t Magnetic Resonance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Robert%20Pintaric">Robert Pintaric</a>, <a href="https://publications.waset.org/abstracts/search?q=Joze%20Matela"> Joze Matela</a>, <a href="https://publications.waset.org/abstracts/search?q=Stefan%20Pintaric"> Stefan Pintaric</a>, <a href="https://publications.waset.org/abstracts/search?q=Stanka%20Vadnjal"> Stanka Vadnjal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: This work is aimed to represent the use of the OPTI-JET CS MD1 MR prototype for application of neutral electrolyzed oxidizing water (NEOW) in magnetic resonance rooms. Material and Methods: We produced and used OPTI-JET CS MD1 MR aerosolisator whereby was performed aerosolization. The presence of microorganisms before and after the aerosolisation was recorded with the help of cyclone air sampling. Colony formed units (CFU) was counted. Results: The number of microorganisms in magnetic resonance 3T room was low as expected. Nevertheless, a possible CFU reduction of 87% was recorded. Conclusions: The research has shown that the use of EOW for the air and hard surface disinfection can considerably reduce the presence of microorganisms and consequently the possibility of hospital infections. It has also demonstrated that the use of OPTI-JET CS MD1 MR is very good. With this research, we started new guidelines for aerosolization in magnetic resonance rooms. Future work: We predict that presented technique works very good but we must focus also on time capacity sensors, and new appropriate toxicological studies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biocide" title="biocide">biocide</a>, <a href="https://publications.waset.org/abstracts/search?q=electrolyzed%20oxidizing%20water%20%28EOW%29" title=" electrolyzed oxidizing water (EOW)"> electrolyzed oxidizing water (EOW)</a>, <a href="https://publications.waset.org/abstracts/search?q=disinfection" title=" disinfection"> disinfection</a>, <a href="https://publications.waset.org/abstracts/search?q=microorganisms" title=" microorganisms"> microorganisms</a>, <a href="https://publications.waset.org/abstracts/search?q=OPTI-JET%20CS%20MD1MR" title=" OPTI-JET CS MD1MR"> OPTI-JET CS MD1MR</a> </p> <a href="https://publications.waset.org/abstracts/35512/use-of-opti-jet-cs-md1mr-device-for-biocide-aerosolisation-in-3t-magnetic-resonance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35512.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">1261</span> Poly (N-Isopropyl Acrylamide-Co-Acrylic Acid)-Graft-Polyaspartate Coated Magnetic Nanoparticles for Molecular Imaging and Therapy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Van%20Tran%20Thi%20Thuy">Van Tran Thi Thuy</a>, <a href="https://publications.waset.org/abstracts/search?q=Dukjoon%20Kim"> Dukjoon Kim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A series of pH- and thermosensitive poly(N-isopropyl acrylamide-co-acrylic acid) were synthesized by radical polymerization and grafted on poly succinimide backbones. The poly succinimide derivatives synthesized were coated on iron oxide magnetic nanoparticles for potential applications in drug delivery systems with theranostic and molecular imaging. The structure of polymer shell was confirmed by FT-IR, H-NMR spectroscopies. Its thermal behavior was tested by UV-Vis spectroscopy. The particle size and its distribution are measured by dynamic light scattering (DLS) and transmission electron microscope (TEM). The mean diameter of the core-shell structure is from 20 to 80 nm. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic" title="magnetic">magnetic</a>, <a href="https://publications.waset.org/abstracts/search?q=nano" title=" nano"> nano</a>, <a href="https://publications.waset.org/abstracts/search?q=PNIPAM" title=" PNIPAM"> PNIPAM</a>, <a href="https://publications.waset.org/abstracts/search?q=polysuccinimide" title=" polysuccinimide"> polysuccinimide</a> </p> <a href="https://publications.waset.org/abstracts/19181/poly-n-isopropyl-acrylamide-co-acrylic-acid-graft-polyaspartate-coated-magnetic-nanoparticles-for-molecular-imaging-and-therapy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19181.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">415</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">1260</span> In Search of CO₂: Gravity and Magnetic Data for Eor Prospect Generation in Central Libya</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Saheel">Ahmed Saheel</a>, <a href="https://publications.waset.org/abstracts/search?q=Milad%20Ahmed%20Elmaradi"> Milad Ahmed Elmaradi</a>, <a href="https://publications.waset.org/abstracts/search?q=Tim%20Archer"> Tim Archer</a>, <a href="https://publications.waset.org/abstracts/search?q=Muammer%20Ahmed%20Aboaesha"> Muammer Ahmed Aboaesha</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulkhaliq%20Abdulmajid%20Altoubashi"> Abdulkhaliq Abdulmajid Altoubashi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Enhanced oil recovery using carbon dioxide (CO₂-EOR) is a method that can increase oil production beyond what is typically achievable using conventional recovery methods by injecting and hence storing, carbon dioxide (CO₂) in the oil reservoir. In Libya, plans are underway to source a proportion of this CO₂ from subsurface geology that is known from previous drilling to contain high volumes of CO₂. But first, these subsurface volumes need to be more clearly defined and understood. Focusing on the Al-Harouj region of central Libya, ground gravity and airborne magnetic data from the LPI database and the African Magnetic Mapping Project respectively have been prepared and processed by Libyan Petroleum Institute (LPI) and Reid Geophysics Limited (RGL) to produce a range of grids and related products suitable for interpreting geological structure and to make recommendations for subsequent work that will assist CO₂ exploration for purposes of enhanced oil recovery (EOR). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=gravity%20anomaly" title="gravity anomaly">gravity anomaly</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20anomaly" title=" magnetic anomaly"> magnetic anomaly</a>, <a href="https://publications.waset.org/abstracts/search?q=DEDUCED%20lineaments" title=" DEDUCED lineaments"> DEDUCED lineaments</a>, <a href="https://publications.waset.org/abstracts/search?q=Total%20horizontal%20derivative" title=" Total horizontal derivative"> Total horizontal derivative</a>, <a href="https://publications.waset.org/abstracts/search?q=upward-continuation" title=" upward-continuation"> upward-continuation</a> </p> <a href="https://publications.waset.org/abstracts/165050/in-search-of-co2-gravity-and-magnetic-data-for-eor-prospect-generation-in-central-libya" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/165050.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">126</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">1259</span> Computational Fluid Dynamic Modeling of Mixing Enhancement by Stimulation of Ferrofluid under Magnetic Field</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Neda%20Azimi">Neda Azimi</a>, <a href="https://publications.waset.org/abstracts/search?q=Masoud%20Rahimi"> Masoud Rahimi</a>, <a href="https://publications.waset.org/abstracts/search?q=Faezeh%20Mohammadi"> Faezeh Mohammadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Computational fluid dynamics (CFD) simulation was performed to investigate the effect of ferrofluid stimulation on hydrodynamic and mass transfer characteristics of two immiscible liquid phases in a Y-micromixer. The main purpose of this work was to develop a numerical model that is able to simulate hydrodynamic of the ferrofluid flow under magnetic field and determine its effect on mass transfer characteristics. A uniform external magnetic field was applied perpendicular to the flow direction. The volume of fluid (VOF) approach was used for simulating the multiphase flow of ferrofluid and two-immiscible liquid flows. The geometric reconstruction scheme (Geo-Reconstruct) based on piecewise linear interpolation (PLIC) was used for reconstruction of the interface in the VOF approach. The mass transfer rate was defined via an equation as a function of mass concentration gradient of the transported species and added into the phase interaction panel using the user-defined function (UDF). The magnetic field was solved numerically by Fluent MHD module based on solving the magnetic induction equation method. CFD results were validated by experimental data and good agreements have been achieved, which maximum relative error for extraction efficiency was about 7.52 %. It was showed that ferrofluid actuation by a magnetic field can be considered as an efficient mixing agent for liquid-liquid two-phase mass transfer in microdevices. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CFD%20modeling" title="CFD modeling">CFD modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrodynamic" title=" hydrodynamic"> hydrodynamic</a>, <a href="https://publications.waset.org/abstracts/search?q=micromixer" title=" micromixer"> micromixer</a>, <a href="https://publications.waset.org/abstracts/search?q=ferrofluid" title=" ferrofluid"> ferrofluid</a>, <a href="https://publications.waset.org/abstracts/search?q=mixing" title=" mixing"> mixing</a> </p> <a href="https://publications.waset.org/abstracts/102582/computational-fluid-dynamic-modeling-of-mixing-enhancement-by-stimulation-of-ferrofluid-under-magnetic-field" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/102582.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">196</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1258</span> Synthesis, Characterization, and Properties Study of New Magnetic Materials</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Messai%20Amel">Messai Amel</a>, <a href="https://publications.waset.org/abstracts/search?q=Badis%20Zakaria"> Badis Zakaria</a>, <a href="https://publications.waset.org/abstracts/search?q=Benali-Cherif%20Nourredine"> Benali-Cherif Nourredine</a>, <a href="https://publications.waset.org/abstracts/search?q=Dominique%20Luneaub"> Dominique Luneaub</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We are interested in molecular polymetallic species having high spin and nuclearities in relation to the field of so call single-molecule magnets (SMMs). The goal is to find a way to synthesis metal clusters which may have application in magnetism and nano sciences. With this purpose, we decided to investigate the coordination chemistry of the Schiff base. Along this way we were able to create cubane-like complexes and elaborate new Single Molecule-Magnets. The idea was to use Schiff base ligands and different metals to generate high nuclear complexes. Complexation of Shiff base with copper (II) has been investigated. Tetra nuclear complex with a cubane like core have been synthesized with (Sciff base), with the same base and cobalt (II) we obtain an other single magnetic complex completely different. In this presentation, we report the synthesis, crystal structure and magnetic properties of the tetranuclear compound (Cu4 L4), and the tetranuclear compound. (Co4L4) <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cluster-assembled%20materials" title="cluster-assembled materials">cluster-assembled materials</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20compounds" title=" magnetic compounds"> magnetic compounds</a>, <a href="https://publications.waset.org/abstracts/search?q=Sciff%20base" title=" Sciff base"> Sciff base</a>, <a href="https://publications.waset.org/abstracts/search?q=cupper" title=" cupper"> cupper</a>, <a href="https://publications.waset.org/abstracts/search?q=cobalt" title=" cobalt"> cobalt</a> </p> <a href="https://publications.waset.org/abstracts/19982/synthesis-characterization-and-properties-study-of-new-magnetic-materials" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19982.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">449</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">1257</span> An Ultra-Low Output Impedance Power Amplifier for Tx Array in 7-Tesla Magnetic Resonance Imaging</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ashraf%20Abuelhaija">Ashraf Abuelhaija</a>, <a href="https://publications.waset.org/abstracts/search?q=Klaus%20Solbach"> Klaus Solbach</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In Ultra high-field MRI scanners (3T and higher), parallel RF transmission techniques using multiple RF chains with multiple transmit elements are a promising approach to overcome the high-field MRI challenges in terms of inhomogeneity in the RF magnetic field and SAR. However, mutual coupling between the transmit array elements disturbs the desirable independent control of the RF waveforms for each element. This contribution demonstrates a 18 dB improvement of decoupling (isolation) performance due to the very low output impedance of our 1 kW power amplifier. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=EM%20coupling" title="EM coupling">EM coupling</a>, <a href="https://publications.waset.org/abstracts/search?q=inter-element%20isolation" title=" inter-element isolation"> inter-element isolation</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20resonance%20imaging%20%28mri%29" title=" magnetic resonance imaging (mri)"> magnetic resonance imaging (mri)</a>, <a href="https://publications.waset.org/abstracts/search?q=parallel%20transmit" title=" parallel transmit"> parallel transmit</a> </p> <a href="https://publications.waset.org/abstracts/31126/an-ultra-low-output-impedance-power-amplifier-for-tx-array-in-7-tesla-magnetic-resonance-imaging" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31126.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">495</span> </span> </div> </div> <ul class="pagination"> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=reluctance%20magnetic&page=7" rel="prev">&lsaquo;</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=reluctance%20magnetic&page=1">1</a></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 disabled"><span class="page-link">...</span></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 class="page-item"><a class="page-link" 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