Boundary element methods
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2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting
The joint meeting is intended to provide an international forum for the exchange of information on state of the art research in the area of antennas and propagation, electromagnetic engineering and radio science
The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted papers will be peer reviewed. Accepted high quality papers will be presented in oral and postersessions, will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE
The world's premier EDA and semiconductor design conference and exhibition. DAC features over 60 sessions on design methodologies and EDA tool developments, keynotes, panels, plus the NEW User Track presentations. A diverse worldwide community representing more than 1,000 organizations attends each year, from system designers and architects, logic and circuit designers, validation engineers, CAD managers, senior managers and executives to researchers and academicians from leading universities.
The CDC is the premier conference dedicated to the advancement of the theory and practice of systems and control. The CDC annually brings together an international community of researchers and practitioners in the field of automatic control to discuss new research results, perspectives on future developments, and innovative applications relevant to decision making, automatic control, and related areas.
2020 IEEE 17th International Symposium on Biomedical Imaging (ISBI 2020)
The IEEE International Symposium on Biomedical Imaging (ISBI) is the premier forum for the presentation of technological advances in theoretical and applied biomedical imaging. ISBI 2020 will be the 17th meeting in this series. The previous meetings have played a leading role in facilitating interaction between researchers in medical and biological imaging. The 2020 meeting will continue this tradition of fostering cross-fertilization among different imaging communities and contributing to an integrative approach to biomedical imaging across all scales of observation.
Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.
Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission
Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.
Video A/D and D/A, display technology, image analysis and processing, video signal characterization and representation, video compression techniques and signal processing, multidimensional filters and transforms, analog video signal processing, neural networks for video applications, nonlinear video signal processing, video storage and retrieval, computer vision, packet video, high-speed real-time circuits, VLSI architecture and implementation for video technology, multiprocessor systems--hardware and software-- ...
Component parts, hybrid microelectronics, materials, packaging techniques, and manufacturing technology.
1994 Second International Conference on Computation in Electromagnetics, 1994
1990 IEEE International Magnetics Conference (INTERMAG), 1990
Digest of the Fifth Biennial IEEE Conference on Electromagnetic Field Computation, 1992
1990 IEEE International Magnetics Conference (INTERMAG), 1990
IEEE Transactions on Magnetics, 2000
The problem of solving open 2D scattering problems using the finite element method (FEM) and the multi-filament current method (MFCM) is addressed in this paper. The second order absorbing boundary condition of Bayliss-Turkel, for noncircular boundaries, and the filament positioning problem in MFCM are investigated. Two problems defined by two perfect cylindric dielectric bodies, with circular and square cross section, ...
Array Insertion and Deletion
Formal Methods in Robotics
IMS MicroApps: The Finite-Element Method
Additive-generative Industrial Design for Robotic Automation
Penetrating Conductors - EMC Society Demo
The NESC: Focused on Worker Safety
8-Element, 1-3GHz Direct Space-to-Information Converter - Matthew Bajor - RFIC Showcase 2018
A 39GHz 64-Element Phased-Array CMOS Transceiver - Yun Wang - RFIC 2019 Showcase
IMS 2012 Microapps - Panel Session: Device Characterization Methods and Advanced RF/ Microwave Design
Micro-Apps 2013: Design and Simulation of Phased Arrays in VSS
Learning with Kernels for Streams of Structured Data
IMS 2011 Microapps - Practical Methods for Estimating the Q of Spiral Inductors Using EM Planar Simulators
Micro-Apps 2013: Alternative Methods and Optimization Techniques for Vector Modulation
Soft, Printable, and Small: An Overview of Manufacturing Methods for Novel Robots at Harvard
Computational Intelligence in (e)Healthcare - Challenges and Opportunites
Award-Winning Methods for LPIRC - Tao Sheng - LPIRC 2019
MicroApps: Different Methods for Capacitor Modelling in High-Frequency PCB-Based Diplexers (National Instruments)
Impedance Matching: RF Boot Camp
Nanoscale Magnetism with Picosecond Time Resolution and High Sensitivity - Hendrik Ohldag - IEEE Magnetics Distinguished Lecture
The problem of solving open 2D scattering problems using the finite element method (FEM) and the multi-filament current method (MFCM) is addressed in this paper. The second order absorbing boundary condition of Bayliss-Turkel, for noncircular boundaries, and the filament positioning problem in MFCM are investigated. Two problems defined by two perfect cylindric dielectric bodies, with circular and square cross section, illuminated by a transverse magnetic plane wave are studied. Both the procedures investigated to place the filaments are efficient. The results obtained using the FEM, with first and second order triangular elements, are compared to those obtained using MFCW and show good agreement.
Electrical impedance tomography (EIT) uses low-frequency current and voltage measurements made on the boundary of a body to compute the conductivity distribution within the body. Since the permittivity distribution inside the body also contributes significantly to the measured voltages, the present reconstruction algorithm images complex conductivity distributions. A finite element model (FEM) is used to solve the forward problem, using a 6017-node mesh for a piecewise-linear potential distribution. The finite element solution using this mesh is compared with the analytical solution for a homogeneous field and a maximum error of 0.05% is observed in the voltage distribution. The boundary element method (BEM) is also used to generate the voltage data for inhomogeneous conductivity distributions inside regions with noncircular boundaries. An iterative reconstruction algorithm is described for approximating both the conductivity and permittivity distributions from this data. The results for an off-centered inhomogeneity showed a 35% improvement in contrast from that seen with only one iteration, for both the conductivity and the permittivity values. It is also shown that a significant improvement in images results from accurately modeling a noncircular boundary. Both static and difference images are distorted by assuming a circular boundary and the amount of distortion increases significantly as the boundary shape becomes more elliptical. For a homogeneous field in an elliptical body with axis ratio of 0.73, an image reconstructed assuming the boundary to be circular has an artifact at the center of the image with an error of 20%. This error increased to 37% when the axis ratio was 0.64. A reconstruction algorithm which used a mesh with the same axis ratio as the elliptical boundary reduced the error in the conductivity values to within 0.5% of the actual values.
The direct solution of Maxwell's equations for high-frequency design at the device level is discussed, focusing on the use of finite-element methods. Some of the computational difficulties encountered are examined, and the use of Delaunay triangulation for mesh generation, which mitigates some of the problems, is described. The application of finite-element analysis to magnetics is discussed.<<ETX>>
In many antenna systems the primary feed or the subreflector will most often be supported by struts which obstruct the aperture and therefore cause a reduction in the directivity and an increase in sidelobe levels. So as to be able to design new structures which avoid these drawbacks, the problem of plane wave scattering from an infinite axially periodic cylinder of arbitrary geometric and material parameters is analyzed by a hybrid finite element/boundary element method. Covariant-projection edge elements are employed in the inhomogeneous region of the unit cell and the scattered field is expanded in terms of cylindrical Floquet harmonics. The resulting practical numerical procedure has been tested to ensure that power conservation rules are obeyed and checked satisfactorily against both analytical results and measurements on periodically loaded struts.
Magnetic field analysis using the stochastic finite element method makes prohibitive demands on computer memory and processing capacity. The authors propose a new approach, based on boundary element techniques, which, as with finite element methods, requires partitioning sufficiently fine to enable tracing of the auto-correlation function, but without requiring as much computer memory for execution.
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