Relevant bibliographies by topics / Magnetic curves

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Magnetic curves'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Magnetic curves"

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Saad, M. Khalifa, H. S. Abdel-Aziz, and Haytham A. Ali. "On Magnetic Curves According to Killing Vector Fields in Euclidean 3-Space." International Journal of Analysis and Applications 20 (March 18, 2022): 18. http://dx.doi.org/10.28924/2291-8639-20-2022-18.

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In the geometric theory of space curves, a magnetic field generates magnetic flow. The trajectories of magnetic flow are called magnetic curves. In the present paper, we obtain magnetic curves corresponding to killing magnetic fields in Euclidean 3-space E3. The magnetic curves of the spherical indicatrices of the tangent, principal normal and binormal for a regular space curve are said to be meant curves. Also, we investigate the magnetic curves of the tangent indicatrix and obtain the trajectories of the magnetic fields called TT-magnetic, NT-magnetic and BT-magnetic curves. Finally, some co
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PARLAK, ESRA, and TEVFİK ŞAHİN. "GEOMETRIC PERSPECTIVE OF BERRY'S PHASE ACCORDING TO ALTERNATIVE ORTHOGONAL MODIFIED FRAME." Journal of Science and Arts 25, no. 1 (2025): 11–24. https://doi.org/10.46939/j.sci.arts-25.1-a02.

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It is very important to determine the Frenet vector fields to obtain the characterizations of curves in 3-dimensional Euclidean space. However, it may not be possible to define Frenet vector fields at some points of the curve, or the Frenet frame may not be sufficient to determine the curve's characterization. New frames can be defined as alternatives to the Frenet frame in these situations. Lots of work has been done for these cases such as Bishop frame, {d_2,C,W}- frame, orthogonal frame, etc. In this study, we produce the magnetic curves related to an alternative modified frame that can be
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Chen, Xiawei, та Haiming Liu. "Two Special Types of Curves in Lorentzian α-Sasakian 3-Manifolds". Symmetry 15, № 5 (2023): 1077. http://dx.doi.org/10.3390/sym15051077.

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In this paper, we focus on the research and analysis of the geometric properties and symmetry of slant curves and contact magnetic curves in Lorentzian α-Sasakian 3-manifolds. To do this, we define the notion of Lorentzian cross product. From the perspectives of the Legendre and non-geodesic curves, we found the ratio relationship between the curvature and torsion of the slant curve and contact magnetic curve in the Lorentzian α-Sasakian 3-manifolds. Moreover, we utilized the property of the contact magnetic curve to characterize the manifold as Lorentzian α-Sasakian and to find the slant curv
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Shweta, Naik, та G.Nagaraja H. "Pseudo-Hermitian Magnetic Curves in (Κ, µ) Manifold". INTERNATIONAL JOURNAL OF MATHEMATICS AND COMPUTER RESEARCH 10, № 09 (2022): 2880–85. https://doi.org/10.5281/zenodo.7043251.

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Object of the present paper is to study pseudo Hermitian magnetic curves in (κ,µ) manifold admitting Zamkovoy connection. We give main classification theorem for pseudo-Hermitian magnetic curve. Again we find the curvature and torsion of magnetic curves in a (κ,µ)-manifold admitting Zamkovoy connection.
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Erjavec, Zlatko, and Jun-ichi Inoguchi. "Magnetic curves in Sol3." Journal of Nonlinear Mathematical Physics 25, no. 2 (2018): 198–210. http://dx.doi.org/10.1080/14029251.2018.1452670.

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Körpınar, Talat, and Ridvan Cem Demirkol. "Gravitational magnetic curves on 3D Riemannian manifolds." International Journal of Geometric Methods in Modern Physics 15, no. 11 (2018): 1850184. http://dx.doi.org/10.1142/s0219887818501840.

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In this paper, we study a special type of magnetic trajectories associated with a magnetic field [Formula: see text] defined on a 3D Riemannian manifold. First, we assume that we have a moving charged particle which is supposed to be under the action of a gravitational force [Formula: see text] in the magnetic field [Formula: see text] on the 3D Riemannian manifold. Then, we determine trajectories of the charged particle associated with the magnetic field [Formula: see text] and we define gravitational magnetic curves ([Formula: see text]-magnetic curves) of the magnetic vector field [Formula:
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Wo, Mei Seen, R. U. Gobithaasan, and Kenjiro T. Miura. "Log-Aesthetic Magnetic Curves and Their Application for CAD Systems." Mathematical Problems in Engineering 2014 (2014): 1–16. http://dx.doi.org/10.1155/2014/504610.

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Curves are the building blocks of shapes and designs in computer aided geometric design (CAGD). It is important to ensure these curves are both visually and geometrically aesthetic to meet the high aesthetic need for successful product marketing. Recently, magnetic curves that have been proposed for computer graphics purposes are a particle tracing technique that generates a wide variety of curves and spirals under the influence of a magnetic field. The contributions of this paper are threefold, where the first part reformulates magnetic curves in the form of log-aesthetic curve (LAC) denoting
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Özdemi̇r, Zehra. "Pseudo null curve variations for Bishop frame in 3D semi-Riemannian manifold." International Journal of Geometric Methods in Modern Physics 16, no. 03 (2019): 1950043. http://dx.doi.org/10.1142/s0219887819500439.

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In the present paper, the relation between invariants of the pseudo null curves and the variational vector fields of semi-Riemannian manifolds is introduced. After that, the Killing equations are written in terms of the Bishop curvatures along the pseudo null curve. By means of this approach, Killing equations make allow to interpret the movement of charged particles within the magnetic field. Afterwards, as an application, pseudo null magnetic curves are defined using the Killing variational vector field. The parametric representations of all pseudo null magnetic curves are determined in semi
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Güvenç, Şaban, and Cihan Özgür. "Magnetic Curves in Homothetic s-th Sasakian Manifolds." Mathematics 13, no. 1 (2025): 159. https://doi.org/10.3390/math13010159.

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We investigate normal magnetic curves in (2n+s)-dimensional homothetic s-th Sasakian manifolds as a generalization of S-manifolds. We show that a curve γ is a normal magnetic curve in a homothetic s-th Sasakian manifold if and only if its osculating order satisfies r≤3 and it belongs to a family of θi-slant helices. Additionally, we construct a homothetic s-th Sasakian manifold using generalized D-homothetic transformations and present the parametric equations of normal magnetic curves in this manifold.
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He, Han, Huaning Wang, Mei Zhang, Ahmad Mehrabi, Yan Yan, and Duo Yun. "Phase difference between long-term magnetic feature activity and flare activity of solar-type stars." Proceedings of the International Astronomical Union 13, S340 (2018): 217–20. http://dx.doi.org/10.1017/s1743921318000960.

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AbstractIn the light curves of some solar-type stars, both rotational modulation (caused by corotating bright or dark magnetic features) and flare phenomena can be seen simultaneously. Based on these light curve observations, the relation between stellar magnetic feature activity (reflected by the rotational modulation component of the light curves) and flare activity can be investigated. Here, we analyze the light curve data of a flare-abundant solar-type star, KIC 6034120, observed with Kepler space telescope, and describe magnetic feature activity property by fluctuation range of light curv
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Dissertations / Theses on the topic "Magnetic curves"

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Ignace, Richard, K. Hole, J. Cassinelli, and G. Henson. "Linear Polarization Light Curves of Oblique Magnetic Rotators." Digital Commons @ East Tennessee State University, 2010. https://dc.etsu.edu/etsu-works/6276.

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The quality and quantity of polarimetric data being collected for stellar sources creates new opportunities for studying stellar properties and evolution, and also leads to new challenges for modeling and interpreting such data. Inspired by fresh prospects for detecting the Hanle effect to study photospheric magnetic fields, we have focused attention on purely geometrical aspects for polarimetric variability in the example of oblique magnetic rotators. In the case of axisymmetric fields, we highlight two key facts: (a) polarimetric lightcurves necessarily exhibit a certain time symmetry with r
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de, Oliveira Gustavo. "Asymptotics for Fermi curves of electric and magnetic periodic fields." Thesis, University of British Columbia, 2009. http://hdl.handle.net/2429/11114.

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This work is concerned with some geometrical properties of (complex) Fermi curves of electric and magnetic periodic fields. These are analytic curves in C² that arise from the study of the eigenvalue problem for periodic Schroedinger operators. More specifically, we characterize a certain class of these curves in the region of C² where at least one of the coordinates has "large" imaginary part. The new results obtained in this thesis extend previous results in the absence of magnetic field to the case of "small" magnetic field. Our theorems can be used to show that generically these Fermi curv
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Lane, Ryan A. "Charged Particle Transport and Confinement Along Null Magnetic Curves and in Various Other Nonuniform Field Configurations for Applications in Antihydrogen Production." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849779/.

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Comparisons between measurements of the ground-state hyperfine structure and gravitational acceleration of hydrogen and antihydrogen could provide a test of fundamental physical theories such as CPT (charge conjugation, parity, time-reversal) and gravitational symmetries. Currently, antihydrogen traps are based on Malmberg-Penning traps. The number of antiprotons in Malmberg-Penning traps with sufficiently low energy to be suitable for trappable antihydrogen production may be reduced by the electrostatic space charge of the positrons and/or collisions among antiprotons. Alternative trap desi
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Alves, Tib?rio Magno de Lima. "Propriedades magn?ticas quase-est?ticas de filmes ferromagn?ticos amorfos de FeCuNbSiB." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/16607.

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Made available in DSpace on 2014-12-17T15:14:57Z (GMT). No. of bitstreams: 1 TiberioMLA_DISSERT.pdf: 5996955 bytes, checksum: 689080ca5f207d43776c16e5aab237d7 (MD5) Previous issue date: 2012-07-27<br>Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico<br>Today, one of the topics that attracts interest of the scientific community is the understanding of magnetic properties of magnetic systems with reduced dimensions, in particular, ferromagnetic thin films. In this case, the comprehension and control of these properties, as well as the development of routes to obtain them, are cruci
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Ziegenbein, Jordan Michael. "Magnetic clamping structures for the consolidation of composite laminates." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/43588.

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Vacuum bags in conjunction with autoclaves are currently employed to generate the consolidation pressures and temperatures required to manufacture aerospace level composites. As the scale of continuous fiber composite structures increases autoclaving becomes prohibitively expensive or impossible. The objective of this work is to develop flexible magnetic clamping structures to increase the consolidation pressure in conventional vacuum bagging of composite laminates, thereby obviating the need for an autoclave. A ferromagnetic rubber, which consists of rubber filled with iron, is being develope
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Nys, Manon. "Schrödinger equations with an external magnetic field: Spectral problems and semiclassical states." Doctoral thesis, Universite Libre de Bruxelles, 2015. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/216641.

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In this thesis, we study Schrödinger equations with an external magnetic field. In the first part, we are interested in an eigenvalue problem. We work in an open, bounded and simply connected domain in dimension two. We consider a magnetic potential singular at one point in the domain, and related to the magnetic field being a multiple of a Dirac delta. Those two objects are related to the Bohm-Aharonov effect, in which a charged particle is influenced by the presence of the magnetic potential although it remains in a region where the magnetic field is zero. We consider the Schrödinger magneti
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Ochodnický, Erik. "Modelování perfuzních křivek v dynamické magnetické rezonanci." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417068.

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Perfusion MRI can provide information about perfusion characteristics of the observed tissue, which makes it a widely applicable medical procedure. Measuring process of MRI is very time-consuming, and therefore, using classical reconstruction methods, we are often not able to obtain enough samples to accomplish the needed time and space resolution for perfusion analysis. That is why it is necessary to use compressed sensing, which allows reconstruction from under-sampled data by solving an optimization model. In this work, several models for reconstruction of an image sequence are verified on
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Magee, Warwick R. "Development of an electromagnetic actuator for active vibration control." Thesis, Queensland University of Technology, 1997.

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Hanni, M. (Matti). "Static and dynamic NMR properties of gas-phase xenon." Doctoral thesis, University of Oulu, 2011. http://urn.fi/urn:isbn:9789514294570.

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Abstract This thesis presents computational studies of both the static and dynamic parameters of the nuclear magnetic resonance (NMR) spectroscopy of gaseous xenon. First, state-of-the-art static magnetic resonance parameters are computed in small xenon clusters by using methods of quantum chemistry, and second, time-dependent relaxation phenomena are investigated via molecular dynamics simulations at different experimental conditions. Based on the underlying quantum and classical mechanics concepts, computational methods represent a procedure complementary to experiments for investigating the
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Ježek, Jaroslav. "Fluxmetr s grafickým zobrazením B-H křivky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218264.

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This work deals with simple fluxmeter which is able, together with other device, to show hysteresis loop. Hysteresis loop is a graphic expression of dependence of magnetic induction on intensity of magnetic field. Oscilloscope is used to display the hysteresis loop. This device is fully sufficient for the display. The measured objects are solenoids from various kinds of materials with the same shape. The main aim of this work is the design, realization and description of the fluxmeter. The fluxmeter consists of several partial blocks. The first one, on which this work is focused, is signal gen
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Books on the topic "Magnetic curves"

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Series, Michigan Historical Reprint. Fieldbook for railroad engineers. Containing formulæ for laying out curves, determining frog angles, levelling, calculating earthwork, etc., etc., together ... magnetic variation, logarithms, logarit. Scholarly Publishing Office, University of Michigan Library, 2005.

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Solymar, L., D. Walsh, and R. R. A. Syms. Magnetic materials. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198829942.003.0011.

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Macroscopic and microscopic theories of magnetic polarization are discussed. The origin of domains, domain walls, and of the hysteresis curve and the contrast between soft and hard magnetic materials are explained. The more important elements of the quantum theory of magnetism are discussed. The principles of the alignments in antiferromagnetic and ferromagnetic materials are explained. Magnetic resonance phenomena are discussed. Magnetoresistance and spintronics and their device prospects are also discussed at some length.
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Novel Magnetic Properties in Curved Geometries. MDPI, 2022. http://dx.doi.org/10.3390/books978-3-0365-3909-6.

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Bran, Cristina. Novel Magnetic Properties in Curved Geometries. Mdpi AG, 2022.

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Epstein, Charles M. Electromagnetism. Edited by Charles M. Epstein, Eric M. Wassermann, and Ulf Ziemann. Oxford University Press, 2012. http://dx.doi.org/10.1093/oxfordhb/9780198568926.013.0001.

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This article elucidates on the concept of electromagnetism and electromagnetic induction with a view to explaining the theory of magnetic stimulation, used to cure diseases in human beings. Magnetic stimulation follows the principles of electromagnetism. A changing primary current induces secondary currents, which are called eddy currents, in the nearby conductors (human tissue in this case). The strength of the electric field is measured by its electromotive force (emf), which in turn, is measured in volts. The changing primary current also gives rise to an induced voltage in the primary loop
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Schwitter, Juerg. Coronary artery disease. Edited by Dudley Pennell. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198784906.003.0105.

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In the work-up of suspected or known coronary artery disease (CAD), cardiovascular magnetic resonance (CMR) is an established technique and it is recommended by most recent guidelines. Stress dobutamine and stress perfusion CMR yield sensitivities and specificities to detect anatomically defined CAD (&gt;50% coronary stenoses) ranging from 83% to 91% and from 83% to 86%, respectively, with areas under the receiver operating characteristic curve (AUCs) of 0.80–0.93. Multicentre trials report AUCs of 0.75–0.91 to detect CAD and showed superiority over scintigraphic techniques. Increasing evidenc
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Emam, Moataz H. Covariant Physics. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198864899.001.0001.

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This book is an introduction to the modern methods of the general theory of relativity, tensor calculus, space time geometry, the classical theory of fields, and a variety of theoretical physics oriented topics rarely discussed at the level of the intended reader (mid-college physics major). It does so from the point of view of the so-called principle of covariance; a symmetry that underlies most of physics, including such familiar branches as Newtonian mechanics and electricity and magnetism. The book is written from a minimalist perspective, providing the reader with only the most basic of n
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Schmidt, Dieter, and Simon Shorvon. Resecting Epilepsy. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780198725909.003.0005.

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The evolution of surgery for epilepsy in the late nineteenth century was partly the consequence of new ideas about the localisation of function in the brain and advances in the understanding of the physiological nature of epilepsy. This was an exciting time of discovery, and really fundamental and novel principles were enunciated which have stood the test of time. New techniques of investigation, including electroencephalography or magnetic resonance imaging, have since led to more accurate ‘targeting’, allowing the elucidation of the anatomical underpinning of epilepsy to be based, not only o
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Nugent, Allison C., and Maura L. Furey. Neuroimaging Promises and Caveats. Edited by Sara Maltzman. Oxford University Press, 2016. http://dx.doi.org/10.1093/oxfordhb/9780199739134.013.41.

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Neuroscience research has clearly demonstrated neurological correlates of psychological disorders. We believe that neuroscience, particularly neuroimaging, has great potential to increase our understanding of these disorders, leading to more effective treatments, prevention, and perhaps even cure. Nevertheless, the popular media is replete with misinformation and exaggerated claims. The present chapter is intended to give the reader the necessary knowledge to critically evaluate neuroimaging studies of psychological disorders. We provide an overview of all the major neuroimaging techniques, ex
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Book chapters on the topic "Magnetic curves"

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Inoguchi, Jun-ichi, and Marian Ioan Munteanu. "Slant Curves and Magnetic Curves." In Contact Geometry of Slant Submanifolds. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-0017-3_9.

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Zacharias, Peter. "Approximation of Empirical Characteristic Curves." In Magnetic Components. Springer Fachmedien Wiesbaden, 2022. http://dx.doi.org/10.1007/978-3-658-37206-4_9.

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Grigorova, M., V. Masheva, D. Nihtianova, et al. "Hysteresis Loops and Remanence Curves of Small γ-Fe2O3 Particles with Different Packing Densities." In Magnetic Hysteresis in Novel Magnetic Materials. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5478-9_37.

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Cross, C. R., J. A. Barclay, A. J. DeGregoria, S. R. Jaeger, and J. W. Johnson. "Optimal Temperature -Entropy Curves for Magnetic Refrigeration." In A Cryogenic Engineering Conference Publication. Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-9874-5_93.

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Meng, Qinglei, Hedyeh Bagherzadeh, Elliot Hong, Yihong Yang, Hanbing Lu, and Fow-Sen Choa. "Angle-Tuned Coil: A Focality-Adjustable Transcranial Magnetic Stimulator." In Brain and Human Body Modelling 2021. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-15451-5_6.

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AbstractConventional transcranial magnetic stimulation (TMS) coils are limited by the depth-focality tradeoff rule. To better utilize this depth-focality tradeoff rule, a new approach needs to be employed. In this study, a new multi-layer winding-tilted TMS coil design is proposed for human brain stimulation. It can deliver stimulation with better depth-focality characteristic than the double cone coils to deep brain regions. In our design, circular coils were accumulated along their central axis to improve the field decay rate as a function of the stimulation depth. We also tilted the winding
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Pitolli, Francesca, and Gabriella Bretti. "An Iterative Algorithm with Joint Sparsity Constraints for Magnetic Tomography." In Mathematical Methods for Curves and Surfaces. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11620-9_21.

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Ishikawa, Y., M. Kojima, and S. Yoshizawa. "Evaluation of Magnetic Hysteresis Curves for Various Specimens." In Advances in Superconductivity II. Springer Japan, 1990. http://dx.doi.org/10.1007/978-4-431-68117-5_153.

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Egli, Ramon. "Magnetic Characterization of Geologic Materials with First-Order Reversal Curves." In Magnetic Measurement Techniques for Materials Characterization. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70443-8_17.

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Stancu, Alexandru. "Characterization of Magnetic Nanostructures with the First-Order Reversal Curves (FORC) Diagram Technique." In Magnetic Measurement Techniques for Materials Characterization. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-70443-8_18.

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Rössler, U. "ZnSe: phonon dispersion curves, phonon spectra." In New Data and Updates for several Semiconductors with Chalcopyrite Structure, for several II-VI Compounds and diluted magnetic IV-VI Compounds. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-28531-8_101.

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Conference papers on the topic "Magnetic curves"

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Jiang, Jun Xiang, and Lei Ke. "Numerical Simulation Analysis of Dynamic Performance of Magnetically Coupled Monostable Piezoelectric Energy Harvester Device." In 12th Annual International Conference on Material Science and Engineering. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-j2bsvo.

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To meet the energy needs of devices such as wireless sensor networks and MEMS systems，improve the adaptability of piezoelectric energy harvester, this paper studies a two-degree-of-freedom(2-DOF) monostable piezoelectric energy harvester based on magnetic. The electromechanical coupling dynamics equation of the 2-DOF monostable system is established. The dynamic equation is solved by harmonic balance method. The output of dimensionless amplitude-frequency curves of a 2-DOF monostable piezoelectric system in the first and second order resonances is simulation analyzed. The results show that the
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Lewis, David. "Evaluation of Transmission Line Sag for Magnetically Induced Voltage on Pipelines in Shared Corridors." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19508.

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Abstract Transmission line phase conductors and overhead wires are affected by sag that vary the distance of these conductors to the earth. This corresponds to a varying separation distance of current carrying phase conductors producing the magnetic fields to parallel pipelines in shared corridors. This paper explores the effects of phase conductors and shield wires’ sag to evaluate the induced voltages on parallel pipelines. Methodologies to consider the sag of the conductors include catenary curves, straight sloped conductors mimicking the maximum and minimum conductor elevations, and unifor
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Wang, Mingzhang, and Satish C. Mohapatra. "Electrochemical Corrosion Study of Silicon in Potassium Formate Solutions." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08384.

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Abstract Potassium formate aqueous solutions have been considered as heat transfer fluids or coolants for electronics cooling applications. Electrochemical corrosion tests were performed on high purity silicon specimens in 42% potassium formate solutions between 298 K and 348 K, with a magnetic stirring rate of 400 RPM. Open circuit potentials were recorded, and corrosion rates were calculated from Tafel scan curves tested at a scan rate of 0.4 mV/s, and the influence of temperature was assessed. The effect of a corrosion inhibitor package was also investigated.
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Ghanbari, Elmira, Scott Lillard, Mariano Iannuzzi, and Mauricio Rincon Ortiz. "Corrosion Behavior of Buried Pipeline in Presence of AC Stray Current in Controlled Environment." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05588.

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Abstract Alternate current (AC) corrosion is a frequent problem where pipelines share right of way with high power transmission lines, AC powered railed system, and structural components on subsea power units. The magnetic field produced by transmission power lines and AC power generators and converters induces an alternate electric current on the buried pipe; the magnitude of the induced AC being proportional to the voltage and separation distance. It has been reported that AC corrosion can occur even when the cathodic protection (CP) criteria is satisfied, highlighting the fact that AC inter
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Rahmanović, Ermin. "Modelling of Nonlinear Magnetic Properties of Current Transformers with Piecewise Bézier Curves." In XXVIII. Symposium Electromagnetic Phenomena in Nonlinear Circuits (EPNC 2024). University of Maribor Press, 2025. https://doi.org/10.18690/um.feri.4.2025.17.

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The magnetic properties of iron cores of contemporary electrical devices, such as current transformers, are highly nonlinear. This work proposes a simple modelling method for the nonlinear magnetic properties using piecewise Bézier curves. An anhysteretic curve is modelled with three measured points. Two second order Bézier curves are joined to form a composite curve based on those measured points. The modelled curve was then compared with a measured anhysteretic curve of a commercial electrical steel sheet. The presented results confirm that this approach with piecewise Bézier curves shows hi
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Walmer, Marlin S., Christina H. Chen, and Michael H. Walmer. "A New Class of Permanent Magnetic Materials for High Temperature Applications." In ASME Turbo Expo 2000: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/2000-gt-0412.

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A new class of Sm2TM17 type permanent magnetic materials has been developed to meet the needs of applications at high temperatures. These magnets have high to moderate energy product (BH)max, high intrinsic coercivity iHc with low temperature coefficient of iHc, and straight-line demagnetization curves up to 550°C. A straight-line demagnetization curve provides greater design flexibility and facilitates reduced size and weight of magnetic circuits. A straight-line demagnetization curve is even more important for dynamic and highly loaded applications where high demagnetization forces are encou
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Kadar, G., E. Kisdi-Kszo, L. Kiss, I. Popocky, M. Zatroch, and E. Della Torre. "Bilinear product Preisach modeling of magnetic hysteresis curves." In International Magnetics Conference. IEEE, 1989. http://dx.doi.org/10.1109/intmag.1989.690246.

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KAWAGUCHI, A., A. KOGA, N. KAWAKAMI, and K. OKUNISHI. "MAGNETIZATION CURVES OF QUASI-ONE-DIMENSIONAL HALDANE SYSTEMS." In Physical Phenomena at High Magnetic Fields - IV. WORLD SCIENTIFIC, 2002. http://dx.doi.org/10.1142/9789812777805_0117.

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Pricop, V., E. Helerea, and Gh Scutaru. "Fitting magnetic hysteresis curves by using polynomials." In 2014 International Symposium on Fundamentals of Electrical Engineering (ISFEE). IEEE, 2014. http://dx.doi.org/10.1109/isfee.2014.7050631.

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Ibrayeva, Anar, Emil Lind, Marcelo De Silva, Sagar Ghorai, and Sandra Eriksson. "BH curves of Anisotropic Alnico Magnets." In 2023 IEEE International Magnetic Conference - Short Papers (INTERMAG Short Papers). IEEE, 2023. http://dx.doi.org/10.1109/intermagshortpapers58606.2023.10228560.

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Reports on the topic "Magnetic curves"

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Light. L52011 Development of Fieldable Magnet and Digital MIVC Stress Measurement Techniques. Pipeline Research Council International, Inc. (PRCI), 2002. http://dx.doi.org/10.55274/r0010147.

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The objective of this project was to start the process of making the MIVC technique simple and cost effective for use in the field by reducing both the size of the required sensors and instrumentation and the calibration requirements. Three steps were taken to meet this objective: (1) design and build a small, lightweight magnetic circuit that can be handled by a single technician, (2) reduce the number and size of the instruments used to perform the MIVC measurements, and (3) investigate the variability of the MIVC calibration curves among different pipe grades and the feasibility of establis
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Jittapiromsak, Nutchawan. Value of Dynamic Contrast-Enhanced Magnetic Resonance Imaging for Determining the Plasma Epstein-Barr Virus Status and Staging of Nasopharyngeal Carcinoma. Faculty of Medicine, Chulalongkorn University, 2019. https://doi.org/10.58837/chula.res.2019.9.

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Objective: To determine the associations between dynamic-contrast enhanced (DCE) magnetic resonance imaging (MRI) parameters and plasma Epstein-Barr virus (EBV) DNA status and nasopharyngeal carcinoma (NPC) stages. Methods: We prospectively studied the DCE MRI results of 47 patients with newly diagnosed NPC and a known pre-treatment plasma EBV DNA level. Regions of interest (ROIs) were drawn at primary tumors, and DCE MRI parameters, including mean and max values of Ktrans, Kep Ve, and Vp, were recorded. Spearman’s rank correlation was used to identify significant associations between DCE MRI
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Blinov, Sergey, Nathan Mackey, Ari Le, and Adam Stanier. Dynamics of Plasma Blobs in Curved Magnetic Geometries. Office of Scientific and Technical Information (OSTI), 2022. http://dx.doi.org/10.2172/1881768.

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Brooks, Stephen. Extrapolation of Magnetic Fields from a Curved Surface. Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1895081.

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Carrion, Philip M., Akira Hasegawa, Waldo Patton, and Manju Prakash. Alfven Waves in a Cold Plasma with Curved Magnetic Fields. Defense Technical Information Center, 1988. http://dx.doi.org/10.21236/ada200312.

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Blinov, Sergey, Nathan Mackey, Ari Le, and Adam Stanier. Dynamics and Instabilities of a Plasma Blob in Curved Magnetic Geometries. Office of Scientific and Technical Information (OSTI), 2022. http://dx.doi.org/10.2172/1883106.

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Nestleroth. L52117 Dual Magnetization MFL for Enhanced Assessment of Corrosion Anomalies. Pipeline Research Council International, Inc. (PRCI), 2008. http://dx.doi.org/10.55274/r0010957.

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Magnetic flux leakage (MFL) is the most commonly used in-line inspection method for pipelines and will most likely remain the preferred technology for many decades. However, MFL does have its limitations on sizing corrosion anomalies. This work investigates an enhanced MFL implementation to improve assessment of corrosion anomalies. This implementation uses signals recorded at two magnetization levels: high levels typical of modern commercial MFL tools and low levels near the knee of the nonlinear magnetization curve. A method for combining signals from both field levels was developed, which c
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Green, M. A., H. Wu, L. Wang, L. L. Kai, L. X. Jia, and S. Q. Yang. AC Losses in the MICE Channel Magnets -- Is This a Curse or aBlessing? Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/928730.

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Gerzeski, Roger H. Efforts to Enhance the Properties of Conventional Elevated Temperature Cure Epoxy Resin Systems by Exposing Them to 1250 to 8800 Oersted Magnetic Fields while Thermally Curing Them. Defense Technical Information Center, 1996. http://dx.doi.org/10.21236/ada326790.

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DSC-MRI Consensus QIBA Profile. Chair Ona Wu, Mark Shiroishi, and Leland Hu. Radiological Society of North America (RSNA)/Quantitative Imaging Biomarkers Alliance (QIBA), 2020. https://doi.org/10.1148/qiba/20201022.

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The goal of a QIBA Profile is to help achieve a useful level of performance for a given biomarker. Profile development is an evolutionary, phased process; this Profile is in the Public Comment Resolution Draft stage. The performance claims represent expert consensus and will be empirically demonstrated at a subsequent stage. Users of this Profile are encouraged to refer to the following site to understand the document’s context: http://qibawiki.rsna.org/index.php/QIBA_Profile_Stages. The Claim (Section 2) describes the biomarker performance. The Activities (Section 3) contribute to generating
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