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Journal articles on the topic 'Finite Element Method Electromagnetics'

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Published: 6 September 2023

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1

Apaydin, Gokhan. "Efficient Finite-Element Method for Electromagnetics." IEEE Antennas and Propagation Magazine 51, no. 5 (October 2009): 61–71. http://dx.doi.org/10.1109/map.2009.5432042.

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2

Glisson, A. "Finite Element Method For Electromagnetics (Book Review)." IEEE Antennas and Propagation Magazine 40, no. 4 (August 1998): 82–83. http://dx.doi.org/10.1109/map.1998.730540.

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3

Salon, S. "The hybrid finite element-boundary element method in electromagnetics." IEEE Transactions on Magnetics 21, no. 5 (September 1985): 1829–34. http://dx.doi.org/10.1109/tmag.1985.1064065.

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4

Delisle, Gilles Y., Ke Li Wu, and John Litva. "Coupled finite element and boundary element method in electromagnetics." Computer Physics Communications 68, no. 1-3 (November 1991): 255–78. http://dx.doi.org/10.1016/0010-4655(91)90203-w.

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5

Gibson, A. A. P. "Book Review: The Finite Element Method in Electromagnetics:." International Journal of Electrical Engineering & Education 31, no. 1 (January 1994): 93–94. http://dx.doi.org/10.1177/002072099403100122.

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6

Rachowicz, W., and L. Demkowicz. "An hp-adaptive finite element method for electromagnetics." Computer Methods in Applied Mechanics and Engineering 187, no. 1-2 (June 2000): 307–35. http://dx.doi.org/10.1016/s0045-7825(99)00137-1.

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7

Gedney, S. "The finite element method in electromagnetics [Book Review]." IEEE Antennas and Propagation Magazine 36, no. 3 (June 1994): 75–76. http://dx.doi.org/10.1109/map.1994.1068064.

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8

Polycarpou, Anastasis C. "Introduction to the Finite Element Method in Electromagnetics." Synthesis Lectures on Computational Electromagnetics 1, no. 1 (January 2006): 1–126. http://dx.doi.org/10.2200/s00019ed1v01y200604cem004.

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9

Amirjani, Amirmostafa, and S. K. Sadrnezhaad. "Computational electromagnetics in plasmonic nanostructures." Journal of Materials Chemistry C 9, no. 31 (2021): 9791–819. http://dx.doi.org/10.1039/d1tc01742j.

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A comprehensive review on the ability of finite difference time domain (FDTD), finite element method (FEM), discrete dipole approximation (DDA), and boundary element method (BEM) for simulating the optical properties of plasmonic nanostructures.
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10

Salon, S. J., and J. D'Angelo. "Applications of the hybrid finite element-boundary element method in electromagnetics." IEEE Transactions on Magnetics 24, no. 1 (1988): 80–85. http://dx.doi.org/10.1109/20.43861.

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11

Nguyen, D. T., J. Qin, M. I. Sancer, and R. McClary. "Finite element–boundary integral methods in electromagnetics." Finite Elements in Analysis and Design 38, no. 5 (March 2002): 391–400. http://dx.doi.org/10.1016/s0168-874x(01)00066-x.

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12

Hoole, S. Ratnajeevan H. "Teaching Electromagnetics through Finite Elements. Part I: The Rationale." International Journal of Electrical Engineering & Education 25, no. 1 (January 1988): 33–49. http://dx.doi.org/10.1177/002072098802500109.

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The rationale for teaching undergraduate electromagnetics partly through the finite element method, is put forward. Properly presented, the finite element method, easily within the ken of the engineering undergraduate, promotes clarity and helps to replace large portions of syllabi devoted to special solution methods, with problems of industrial magnitude and character.
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13

Dhamodaran, M., and R. Dhanasekaran. "Comparison of Computational Electromagnetics for Electrostatic Analysis." International Journal of Energy Optimization and Engineering 3, no. 3 (July 2014): 86–100. http://dx.doi.org/10.4018/ijeoe.2014070106.

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This paper presents comparative studies on different numerical methods like method of moments (MOM), Boundary Element Method (BEM), Finite element method (FEM), Finite difference method (FDM), Charge Simulation method (CSM) and Surface charge method. The evaluation of the capacitance of various structures having different geometrical shapes is importance to study the behavior of electrostatic charge analysis. The MOM is based upon the transformation of an integral equation, into a matrix equation by employing expansion of the unknown in terms of known basis functions with unknown coefficients such as charge distribution and hence the capacitance is to be determined. To illustrate the usefulness of this technique, apply these methods to the computation of capacitance of different conducting shapes. This paper reviews the results of computing the capacitance-per-unit length with the other methods. The capacitance of charged conducting plates is reviewed by different methods.
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14

Volakis, John L., Kubilay Sertel, and Brian C. Usner. "Frequency Domain Hybrid Finite Element Methods for Electromagnetics." Synthesis Lectures on Computational Electromagnetics 1, no. 1 (January 2006): 1–156. http://dx.doi.org/10.2200/s00038ed1v01y200606cem010.

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15

Liu, Jianxin, Pengmao Liu, and Xiaozhong Tong. "Three-dimensional Land FD-CSEM Regularized Inversion Based on Edge Finite-element Method." Journal of Environmental and Engineering Geophysics 23, no. 2 (June 2018): 211–22. http://dx.doi.org/10.2113/jeeg23.2.211.

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There is a desire to obtain rapid and stable inversion results and clearly reconstruct subsurface resistivity structure in frequency domain (FD) electromagnetics. Three-dimensional modeling of land FD controlled-source electromagnetic (CSEM) data is vital to improve the understanding of electromagnetic responses collected in increasingly complex geologic settings. Three-dimensional inversion of land FD-CSEM data is a mathematically non-unique problem with instability, due to the noise contained in the data and its inherent incompleteness. The main difference between our method and those from previous work is that the edge finite-element approach is applied to solve the three-dimensional FD-CSEM generated by a horizontal electric dipole source. Firstly, we formulate the edge finite-element equation through the Galerkin method, based on the Helmholtz equation of the electric fields. Secondly, in order to check the validity of the modeling code, we compare the numerical results with the analytical solutions for a homogeneous half-space model. For further tests, we calculate the electromagnetic responses for another two models with more practical structures. Finally, the three-dimensional inversion is carried out based on a regularization method with smoothness-constraints to obtain stable solutions.
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16

Haldar, M. K. "Introducing the Finite Element Method in Electromagnetics to Undergraduates Using MATLAB." International Journal of Electrical Engineering & Education 43, no. 3 (July 2006): 232–44. http://dx.doi.org/10.7227/ijeee.43.3.4.

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17

Motooka, Y., So Noguchi, and H. Igarashi. "Evaluation of Hexahedral Mesh Quality for Finite Element Method in Electromagnetics." Materials Science Forum 670 (December 2010): 318–24. http://dx.doi.org/10.4028/www.scientific.net/msf.670.318.

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We have previously proposed an automatic hexahedral mesh generator. It is necessary to understand about the quality and characteristic of the generated mesh to perform hexahedral edge finite element analysis in electromagnetic. Therefore, we have compared high-quality meshes with poor-quality meshes, and investigated about the factors that affect the accuracy and the computation time. In addition, we investigated about the effect of the templates used in the proposed method. We will conclusively apply the result to improving the automatic hexahedral mesh generator.
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18

Rachowicz, W., and A. Zdunek. "Anhp-adaptive finite element method for scattering problems in computational electromagnetics." International Journal for Numerical Methods in Engineering 62, no. 9 (2005): 1226–49. http://dx.doi.org/10.1002/nme.1227.

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19

Ambrosiano, John J., Scott T. Brandon, Rainald Löhner, and C. Richard DeVore. "Electromagnetics via the Taylor-Galerkin Finite Element Method on Unstructured Grids." Journal of Computational Physics 110, no. 2 (February 1994): 310–19. http://dx.doi.org/10.1006/jcph.1994.1028.

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20

El Bechari, Reda, Frédéric Guyomarch, and Stéphane Brisset. "The Adjoint Variable Method for Computational Electromagnetics." Mathematics 10, no. 6 (March 10, 2022): 885. http://dx.doi.org/10.3390/math10060885.

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Optimization using finite element analysis and the adjoint variable method to solve engineering problems appears in various application areas. However, to the best of the authors’ knowledge, there is a lack of detailed explanation on the implementation of the adjoint variable method in the context of electromagnetic modeling. This paper aimed to provide a detailed explanation of the method in the simplest possible general framework. Then, an extended explanation is offered in the context of electromagnetism. A discrete design methodology based on adjoint variables for magnetostatics was formulated, implemented, and verified. This comprehensive methodology supports both linear and nonlinear problems. The framework provides a general approach for performing a very efficient and discretely consistent sensitivity analysis for problems involving geometric and physical variables or any combination of the two. The accuracy of the implementation is demonstrated by independent verification based on an analytical test case and using the finite-difference method. The methodology was used to optimize the parameters of a superconducting energy storage device and a magnet press and the optimization of the topology of an electromagnet. The objective function of each problem was successfully decreased, and all constraints stipulated were met.
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21

Fernandes, Paolo, and Mirco Raffetto. "Characterization of spurious‐free finite element methods in electromagnetics." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 21, no. 1 (March 2002): 147–64. http://dx.doi.org/10.1108/03321640210410814.

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22

Raiyan Kabir, Shah Muhammad, B. M. Azizur Rahman, and Ken Thomas Victor Grattan. "SPEEDING BEYOND FDTD, PERFORATED FINITE ELEMENT TIME DOMAIN METHOD FOR 3D ELECTROMAGNETICS." Progress In Electromagnetics Research B 64 (2015): 171–93. http://dx.doi.org/10.2528/pierb15081902.

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23

Abedi, Reza, and Saba Mudaliar. "An asynchronous spacetime discontinuous Galerkin finite element method for time domain electromagnetics." Journal of Computational Physics 351 (December 2017): 121–44. http://dx.doi.org/10.1016/j.jcp.2017.09.001.

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24

Rachowicz, W., and L. Demkowicz. "Anhp-adaptive finite element method for electromagnetics?part II: A 3D implementation." International Journal for Numerical Methods in Engineering 53, no. 1 (2001): 147–80. http://dx.doi.org/10.1002/nme.396.

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25

Li, Ping, and Li Jun Jiang. "A Hybrid Electromagnetics-Circuit Simulation Method Exploiting Discontinuous Galerkin Finite Element Time Domain Method." IEEE Microwave and Wireless Components Letters 23, no. 3 (March 2013): 113–15. http://dx.doi.org/10.1109/lmwc.2013.2246149.

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26

Pai, David M., and Ming Huang. "A generalized Haskell matrix method for borehole electromagnetics: Theory and applications." GEOPHYSICS 53, no. 12 (December 1988): 1577–86. http://dx.doi.org/10.1190/1.1442439.

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In borehole electromagnetics, both cylindrical and planar interfaces are present, leading to nonseparable field equations. The problem is two‐dimensional (2-D), and the finite‐element method is usually employed for solution. In this paper, the Generalized Haskell Matrix/Layer Eigenstate Propagator method is introduced to this class of problems. In the method, the solution problem is decomposed into a set of one‐dimensional (1-D) problems, and then the 1-D solutions are combined to form the final solution. The method employs no approximation, other than discretization of a continuous system as in all computer methods. Induction logs are calculated for the 6FF40 tool and a number of models. Results agree well with those of the finite‐element method. An important case in induction‐log interpretation is studied; namely, a three‐layer formation traversed by a borehole, the center layer being an oil‐bearing (resistive) layer sandwiched between two conductive shoulder layers. Simulation shows that conventional correction methods ignoring borehole‐bed coupling can lead to resistivities that differ from the true resistivities by a factor of 2 or even higher.
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27

Garcia-Donoro, Daniel, Luis Emilio Garcia-Castillo, and Sio Weng Ting. "Verification Process of Finite-Element Method Code for Electromagnetics: Using the method of manufactured solutions." IEEE Antennas and Propagation Magazine 58, no. 2 (April 2016): 28–38. http://dx.doi.org/10.1109/map.2016.2520308.

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28

Butrylo, B., F. Musy, L. Nicolas, R. Perrussel, R. Scorretti, and C. Vollaire. "A survey of parallel solvers for the finite element method in computational electromagnetics." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 23, no. 2 (June 2004): 531–46. http://dx.doi.org/10.1108/03321640410510721.

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29

Sykulski, J. "Computational electromagnetics for design optimisation: the state of the art and conjectures for the future." Bulletin of the Polish Academy of Sciences: Technical Sciences 57, no. 2 (June 1, 2009): 123–31. http://dx.doi.org/10.2478/v10175-010-0112-5.

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Computational electromagnetics for design optimisation: the state of the art and conjectures for the futureThe paper reviews the state of the art in modern field simulation techniques available to assist in the design and performance prediction of electromechanical and electromagnetic devices. Commercial software packages, usually exploiting finite element and/or related techniques, provide advanced and reliable tools for every-day use in the design office. At the same time Computational Electromagnetics continues to be a thriving area of research with emerging new techniques and methods, in particular for multi-physics applications and in the area of multi-objective optimisation.
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30

Mitra, Dipankar, Sukrith Dev, Jacob Lewis, Jerika Cleveland, Monica S. Allen, Jeffery W. Allen, and Benjamin D. Braaten. "A Phased Array Antenna with New Elements Designed Using Source Transformations." Applied Sciences 11, no. 7 (April 1, 2021): 3162. http://dx.doi.org/10.3390/app11073162.

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Transformation electromagnetics/optics (TE/TO) has been shown to be a useful technique in designing electromagnetic devices with very unique properties. Here, the concepts of transformation optics for single elements is extended to an array of “pinwheel” shaped elements for the first time. Through full-wave finite element analysis (FEA), it is shown that a transformed “pinwheel” linear array can be designed to operate identically to a uniformly spaced linear dipole array. Thus, the “pinwheel” antenna array will maintain all the advantages of array processing of a simple dipole antenna array. The proposed method has applications in structurally integrated and conformal phased arrays for wireless communications, radars, and sensing where structural and mechanical constrains do not align with antenna performance.
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31

Cecot, W., W. Rachowicz, and L. Demkowicz. "Anhp-adaptive finite element method for electromagnetics. Part 3: A three-dimensional infinite element for Maxwell's equations." International Journal for Numerical Methods in Engineering 57, no. 7 (2003): 899–921. http://dx.doi.org/10.1002/nme.713.

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32

Bedrosian, G. "High-Performance Computing for Finite Element Methods in Low-Frequency Electromagnetics." Progress In Electromagnetics Research 07 (1993): 57–110. http://dx.doi.org/10.2528/pier91031400.

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33

Volakis, J. L., A. Chatterjee, and J. Gong. "A class of hybrid finite element methods for electromagnetics: a review." Journal of Electromagnetic Waves and Applications 8, no. 9-10 (January 1, 1994): 1095–124. http://dx.doi.org/10.1163/156939394x00975.

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34

Yuan, Duan Lei, Hai Yan Wang, Zhi Hao Zhu, and Hua Jun Dong. "Design of Electromagnetic Mechanism with Finite Element Method." Applied Mechanics and Materials 380-384 (August 2013): 3226–29. http://dx.doi.org/10.4028/www.scientific.net/amm.380-384.3226.

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A closing electromagnetic mechanism for rail transit direct-current circuit breaker is designed. But it is found that the temperature is too high when the mechanism kept closing for a long time because of the coils high power. Based on the theory of electromagnetic field and electromagnet design, the distribution of magnetic field and the electromagnetic force of electromagnetic mechanism are simulated by finite element analysis software ANSYS. An improved mechanism is manufactured according to the simulation results. The experiments show that the improved scheme can effectively reduce the electromagnetic mechanisms closing maintenance power, and the accuracy of simulation results is validated.
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35

Han, Xiaoming, Zheng Liu, Guofeng Li, Zhen Wang, Ziku Wu, and Yan Wu. "Radial basis function and finite element method hybrid approach for three-dimensional electromagnetics problems." International Journal of Applied Electromagnetics and Mechanics 60, no. 3 (May 30, 2019): 445–55. http://dx.doi.org/10.3233/jae-180059.

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36

Lou, Z., and J. M. Jin. "A Novel Dual-Field Time-Domain Finite-Element Domain-Decomposition Method for Computational Electromagnetics." IEEE Transactions on Antennas and Propagation 54, no. 6 (June 2006): 1850–62. http://dx.doi.org/10.1109/tap.2006.875922.

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37

Peng, Chang, Li Qiu, Ke Shen Gong, and Ding Jun Wang. "Research on Workpiece Deformation in Electromagnetic Forming Process with Finite Element Method." Advanced Materials Research 989-994 (July 2014): 2702–4. http://dx.doi.org/10.4028/www.scientific.net/amr.989-994.2702.

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Electromagnetic forming is a kind of processing technology that use lorentz force to make rapid prototyping of metal workpiece, which can significantly improve the metal forming performance,and it is expected to become an emerging technology that alternative to traditional machining to process light alloy materials. Based on the understanding the basic structure of the electromagnetic coupling on the basis of physical process of electromagnetic forming, this article adopt ANSYS sequential coupling method to simulate the electromagnetic coupling process of electromagnetic structure, and analysis of tube electromagnetic forming and plate of workpiece in the process of free bulging deformation behavior. The solenoid coil tubing have an axis of symmetry due to bulging, and it’s electromagnetism load and constraint has symmetry, so its formability is uniform in hoop direction. When the plank free bulge, the distribution of the electromagnetic force caused by the flat spiral coil is not uniform,and the artifacts accelerate fastest in the part of the radius of coil 1/2, but the center area of the workpiece’s forming height is highest.
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38

LIU, NIAN, CHI XIE, YING LIU, LU LIU, and KE-XUN JIANG. "NEW FINITE ELEMENT METHOD OF ELECTROMAGNETIC CALCULATION FOR COMPLEX ELECTROMAGNETIC FIELDS." Modern Physics Letters B 21, no. 11 (May 10, 2007): 655–62. http://dx.doi.org/10.1142/s0217984907013110.

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In order to increase greatly the calculation accuracy and the computation speed for complex electromagnetic fields in modern physics, a new finite element method, which has the high computation accuracy, fast computation speed and less computer storage requirements, is presented in this paper. The new method with a high-order finite element without internal nodes is introduced to compute and analyze some complex electromagnetic fields in the electron accelerators. In this paper, the complex electromagnetic field in an electromagnetic device has been calculated successfully by the finite elements, and the electromagnetic properties of the electromagnetic device under the specific work condition is analyzed and evaluated. Good agreement is found between the computed values and the experimental values.
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39

Trlep, M., L. Skerget, B. Kreca, and B. Hribernik. "Hybrid finite element-boundary element method for nonlinear electromagnetic problems." IEEE Transactions on Magnetics 31, no. 3 (May 1995): 1380–83. http://dx.doi.org/10.1109/20.376284.

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40

Rostami, Amir, Noorhana Yahaya, Hassan Soleimani, Muhammad Rauf, Tadiwa E. Nyamasvisva, Afza Shafie, Vahid Khosravi, and Menaka Ganeson. "Source modification for efficiency enhancement of marine controlled-source electromagnetic method." Journal of Geophysics and Engineering 18, no. 2 (April 2021): 253–67. http://dx.doi.org/10.1093/jge/gxab011.

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Abstract Controlled-source electromagnetics is a strongly efficient technique to explore deep-water marine hydrocarbon reservoirs. However, the shallow-water unsolved limitations of electromagnetic shooting methods still exist. In this regard, this work aims to alter the existing conventional electromagnetic source such that it can converge the down-going electromagnetic wave while simultaneously dispersing the up-going electromagnetic energy to minimise the airwave in shallow water. This work presents computed electric current distribution inside a modified transmitter, using a method of moments. Simulation and an experiment-based methodology are applied to this work. Finite element simulation of the response of the modified transmitter displayed the capability of the new transmitter in dispersing the airwave, by 15%. The experimental setup confirmed a better performance of the new transmitter, showing hydrocarbon delineation of up to 48%, compared to the existing conventional transmitter, with 25% oil delineation at the same depths in the same environment. Modification of the electromagnetic source to unbalance the up-down signals may have the potential to enhance the delineation magnitude of the target signal and, as a result, significantly improve oil detection capability.
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41

Caorsi, S., P. Fernandes, and M. Raffetto. "Towards a good characterization of spectrally correct finite element methods in electromagnetics." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 15, no. 4 (December 1996): 21–35. http://dx.doi.org/10.1108/03321649610154195.

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42

Lu, Chuan, and Balasubramaniam Shanker. "Generalized Finite Element Method for Vector Electromagnetic Problems." IEEE Transactions on Antennas and Propagation 55, no. 5 (May 2007): 1369–81. http://dx.doi.org/10.1109/tap.2007.895572.

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43

Onuki, T. "Hybrid finite element and boundary element method applied to electromagnetic problems." IEEE Transactions on Magnetics 26, no. 2 (March 1990): 582–87. http://dx.doi.org/10.1109/20.106384.

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44

Yamashita, H., N. Miyamoto, and V. Cingoski. "Hybrid element-free Galerkin-finite element method for electromagnetic field computations." IEEE Transactions on Magnetics 36, no. 4 (July 2000): 1543–47. http://dx.doi.org/10.1109/20.877733.

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45

Xinqing, Sheng, and Peng Zhen. "Novel high-performance element in the electromagnetic finite-element method — Node-edge element." Journal of Systems Engineering and Electronics 19, no. 5 (October 2008): 878–81. http://dx.doi.org/10.1016/s1004-4132(08)60167-x.

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46

Sathyan, Sabin, Ugur Aydin, and Anouar Belahcen. "Acoustic Noise Computation of Electrical Motors Using the Boundary Element Method." Energies 13, no. 1 (January 3, 2020): 245. http://dx.doi.org/10.3390/en13010245.

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This paper presents a numerical method and computational results for acoustic noise of electromagnetic origin generated by an induction motor. The computation of noise incorporates three levels of numerical calculation steps, combining both the finite element method and boundary element method. The role of magnetic forces in the production of acoustic noise is established in the paper by showing the magneto-mechanical and vibro-acoustic pathway of energy. The conversion of electrical energy into acoustic energy in an electrical motor through electromagnetic, mechanical, or acoustic platforms is illustrated through numerical computations of magnetic forces, mechanical deformation, and acoustic noise. The magnetic forces were computed through 2D electromagnetic finite element simulation, and the deformation of the stator due to these forces was calculated using 3D structural finite element simulation. Finally, boundary element-based computation was employed to calculate the sound pressure and sound power level in decibels. The use of the boundary element method instead of the finite element method in acoustic computation reduces the computational cost because, unlike finite element analysis, the boundary element approach does not require heavy meshing to model the air surrounding the motor.
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47

Ise, K., K. Inoue, and M. Koshiba. "Three-dimensional finite-element method with edge elements for electromagnetic waveguide discontinuities." IEEE Transactions on Microwave Theory and Techniques 39, no. 8 (1991): 1289–95. http://dx.doi.org/10.1109/22.85402.

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48

Li, Jiaxian. "Simulation Analysis of Static Characteristics of CJX2-40 Type AC Contactor Electromagnetic Mechanism." Open Electrical & Electronic Engineering Journal 8, no. 1 (December 31, 2014): 467–73. http://dx.doi.org/10.2174/1874129001408010467.

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At present, the finite element method has been widely used in electrical engineering; value has an absolute advantage in the field of solving the problem of position in the electromagnetic boundary. From the perspective of historical development, for solving the electromagnetic boundary value problems, four kinds of methods are used namely; graphical method, simulation method, analytical method and numerical calculation . This study introduced finite element method which has developed rapidly. Before finite element method, numerical calculation method was used, although this method was effective to a certain extent but the results showed that it had a limited range of the electromagnetic boundary value problems to be solved.
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49

LIU, NIAN, and CHI XIE. "A HYBRID FINITE ELEMENT CALCULATION OF COMPLEX ELECTROMAGNETIC FIELDS." Modern Physics Letters B 22, no. 04 (February 10, 2008): 269–74. http://dx.doi.org/10.1142/s0217984908014833.

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In order to increase to a greater extent the calculation accuracy for complex electromagnetic fields in the modern physics, a hybrid finite element method (HFEM) is presented for analysis and simulation of complex electromagnetic fields. In the paper, the hybrid finite element method (HFEM) with high accuracy is introduced, and the complex electromagnetic field in an electromagnetic device has been calculated successfully by the hybrid finite element method (HFEM) and the electromagnetic properties of the electromagnetic device under the specific work condition is evaluated. It is shown that the method can provide a much more accurate calculation and good agreement between the computed values and the experimental values.
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50

Dodig, Hrvoje, Dragan Poljak, and Mario Cvetković. "On the edge element boundary element method/finite element method coupling for time harmonic electromagnetic scattering problems." International Journal for Numerical Methods in Engineering 122, no. 14 (April 14, 2021): 3613–52. http://dx.doi.org/10.1002/nme.6675.

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