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Numerical Stabilization of the Melt Front for Laser Beam Cutting [chapter]

Torsten Adolph, Willi Schönauer, Markus Niessen, Wolfgang Schulz
2010 Numerical Mathematics and Advanced Applications 2009  
We develop a hybrid scheme consisting of a combination of a second order MUSCL scheme and a high order finite difference scheme.  ...  The solution is obtained by means of Finite Element Method (FEM).  ...  Parallel MD simulations of ion solvation phenomena Analysis of finite element methods for the Brinkman problem Analysis of the Parallel Finite Volume Solver for the Anisotropic Allen-Cahn Equation  ... 
doi:10.1007/978-3-642-11795-4_6 fatcat:nx4nvuxaxfbcdjknopny53ck5e

Particle Swarm Optimization for Positioning the Coil of Transcranial Magnetic Stimulation

Congsheng Li, Chang Liu, Lei Yang, Luyang He, Tongning Wu
2019 BioMed Research International  
The optimization terminated after 4–11 iterations for 13 head models. The applicability and performance of the optimizer for a large population are discussed in terms of cortical complexity.  ...  Therefore, optimizing the E-field according to individual anatomy and clinical need has become a research focus.  ...  Acknowledgments is work was supported by grants from the National Natural Science Foundation Project (nos. 61971145, 61371187, and 61671158) and the National Science and Technology Major Project (no. 2018ZX10301201  ... 
doi:10.1155/2019/9461018 pmid:31828150 pmcid:PMC6885250 fatcat:jmuej7lxujd2rnnfrojrojj3lq

A finite-element reciprocity solution for EEG forward modeling with realistic individual head models

Erik Ziegler, Sarah L. Chellappa, Giulia Gaggioni, Julien Q.M. Ly, Gilles Vandewalle, Elodie André, Christophe Geuzaine, Christophe Phillips
2014 NeuroImage  
The approach was validated using a 4-shell spherical model and shown to perform comparably with two current state-of-the-art alternatives (OpenMEEG for boundary element modeling and SimBio for finite element  ...  We present a finite element modeling (FEM) implementation for solving the forward problem in electroencephalography (EEG).  ...  Acknowledgments The authors would like to acknowledge the assistance of Axel Thielscher and André Antunes for the design of the software and Johannes Vorwerk for his guidance with SimBio.  ... 
doi:10.1016/j.neuroimage.2014.08.056 pmid:25204867 fatcat:2cpelxw3vbgupeyd4ydlq7ldre

A finite-element reciprocity solution for EEG forward modeling with realistic individual head models

Ziegler Erik, Chellappa Sarah, Gaggioni Giulia, Ly Julien, Vandewalle Gilles, André Elodie, Geuzaine Christophe, Phillips Christophe
2014 Frontiers in Human Neuroscience  
The approach was validated using a 4-shell spherical model and shown to perform comparably with two current state-of-the-art alternatives (OpenMEEG for boundary element modeling and SimBio for finite element  ...  We present a finite element modeling (FEM) implementation for solving the forward problem in electroencephalography (EEG).  ...  Acknowledgments The authors would like to acknowledge the assistance of Axel Thielscher and André Antunes for the design of the software and Johannes Vorwerk for his guidance with SimBio.  ... 
doi:10.3389/conf.fnhum.2014.214.00072 fatcat:fpdv7ieeebgh3ouihd3f72em7i

2020 Index IEEE Transactions on Circuits and Systems I: Regular Papers Vol. 67

2020 IEEE Transactions on Circuits and Systems Part 1: Regular Papers  
Sobaszek, M., TCSI March 2020 797-805 Zero-Crossing-Time-Difference Model for Stability Analysis of VCO-Based OTAs.  ...  Bund, J., +, TCSI Oct. 2020 3562-3573 Zero-Crossing-Time-Difference Model for Stability Analysis of VCO-Based OTAs.  ...  ., +, TCSI Dec. 2020 4494-4506 Dynamic Harmonic Analysis With FIR Filters Designed With O-Splines.  ... 
doi:10.1109/tcsi.2021.3055003 fatcat:kbmst5td2bbvtl7vpbj3knnkri

Proceedings Of The 15Th International Conference On Biomedical Applications Of Electrical Impedance Tomography [article]

Andy Adler, Bartłomiej Grychtol
2015 Zenodo  
This document is the collection of papers accepted for presentation at the 15th International Conference on Biomedical Applications of Electrical Impedance Tomography.  ...  Collected work: (c) 2014 Andy Adler and Bartłomiej Grychtol. All rights reserved. Cover design: Bartłomiej Grychtol Photo credit: (c) 1000 Islands Photo Art Inc. / Ian Coristine  ...  The algorithm performed well and showed significant improvements of artefact resistance.  ... 
doi:10.5281/zenodo.17749 fatcat:ehd3tnanebhqdoozy6wu27hojm

2020 Index IEEE Transactions on Circuits and Systems II: Express Briefs Vol. 67

2020 IEEE Transactions on Circuits and Systems - II - Express Briefs  
Zhang, L., Quantized Fuzzy Finite-Time Control for Nonlinear Semi-Markov Switching Systems; TCSII Nov. 2020 2622-2626 Qi, X., see Liu, W., 1249-1253 Qian, G., see Dong, F., TCSII Dec. 2020 3587-3591  ...  Qian, G., Ning, X., and Wang, S., Recursive Constrained Maximum Correntropy Criterion Algorithm for Adaptive Filtering; TCSII Oct. 2020 2229-2233 Qian, J., Lu, M., and Huang, N., Radar and Communication  ...  ., +, TCSII Aug. 2020 1464-1468 Design of QCA-Serial Parallel Multiplier (QSPM) With Energy Dissipation Analysis.  ... 
doi:10.1109/tcsii.2020.3047305 fatcat:ifjzekeyczfrbp5b7wrzandm7e

Neuro-current response functions: A unified approach to MEG source analysis under the continuous stimuli paradigm

Proloy Das, Christian Brodbeck, Jonathan Z. Simon, Behtash Babadi
2020 NeuroImage  
In summary, we provide a principled modeling and estimation paradigm for MEG source analysis tailored to extracting the cortical origin of electrophysiological responses to continuous stimuli.  ...  Neuroimaging techniques such as magnetoencephalography (MEG) and Electroencephalography (EEG) have provided significant insights into the neural processing of continuous stimuli, such as speech, thanks  ...  Acknowledgments This work was supported by the National Science Foundation (Award No: 1552946 and 1734892), the Defense Advanced Research Projects Agency (Award No: N6600118240224) and the National Institutes  ... 
doi:10.1016/j.neuroimage.2020.116528 pmid:31945510 pmcid:PMC7717175 fatcat:ywygvlg3dfa5dfm3ol6pbagpzq

A comparison of two EIT systems suitable for imaging impedance changes in epilepsy

L Fabrizi, A McEwan, T Oh, E J Woo, D S Holder
2009 Physiological Measurement  
The performance of two suitable EIT systems, the 16/32-channel serial UCH Mk2.5 and the 16-channel semiparallel KHU Mk1, were compared.  ...  This method has been implemented by Isaacson, Mueller, and Siltanen, and, in this paper, we introduce a simple and computationally efficient method, using finite differences, to solve the d-bar equation  ...  Acknowledgments This work is supported in part by CenSSIS, the Center for Subsurface Sensing and Imaging Systems, under the Engineering Research Centers Program of the National Science Foundation (Award  ... 
doi:10.1088/0967-3334/30/6/s07 pmid:19491447 fatcat:nzeetw52ofaslcwhd2kxylvlpu

Real-time neuroimaging and cognitive monitoring using wearable dry EEG

Tim R. Mullen, Christian A. E. Kothe, Yu Mike Chi, Alejandro Ojeda, Trevor Kerth, Scott Makeig, Tzyy-Ping Jung, Gert Cauwenberghs
2015 IEEE Transactions on Biomedical Engineering  
Conclusion-We demonstrated the feasibility for real-time cortical connectivity analysis and cognitive state classification from high-density wearable dry EEG.  ...  Methods- The system integrates a 64-channel dry EEG form-factor with wireless data streaming for online analysis.  ...  The U.S Government is authorized to reproduce and distribute reprints for Government purposes notwithstanding any copyright notation herein. Biographies  ... 
doi:10.1109/tbme.2015.2481482 pmid:26415149 pmcid:PMC4710679 fatcat:ga7diwcisbdzladqgw2lq6beiq

A common formalism for the Integral formulations of the forward EEG problem

J. Kybic, M. Clerc, T. Abboud, O. Faugeras, R. Keriven, T. Papadopoulo
2005 IEEE Transactions on Medical Imaging  
It allows us to cast the previous BEM approaches in a unified setting and to develop two new approaches corresponding to different ways of exploiting the same theorem.  ...  Then, we propose a symmetric formulation, which combines single and double-layer potentials, and which is new to the field of EEG, although it has been applied to other problems in electromagnetism.  ...  Parallel techniques also exist for linear system solver non-iterative algorithms (SCALAPACK library). V.  ... 
doi:10.1109/tmi.2004.837363 pmid:15638183 fatcat:5s5bqvdeq5hcjg6lm6fbfrhrqi

Conductivity Imaging and Generalized Radon Transform [chapter]

Archontis Giannakidis, Maria Petrou
2010 Advances in Imaging and Electron Physics  
Examples of methods that have been used for the solution of the forward EIT problem include the finite difference method (FDM) (Patterson & Zhang, 2003) , the finite volume method (FVM) (Dong et al.,  ...  This iterative process, designed especially for dealing with ill-posed problems, can be performed offline (Liu et al., 2004; Wang et al., 2004) .  ...  for typesetting some questions have arisen.  ... 
doi:10.1016/s1076-5670(10)62004-6 fatcat:flslgjijancb3fw4d655qtqpmq

Generalizing, Decoding, and Optimizing Support Vector Machine Classification [article]

Mario Michael Krell
2018 arXiv   pre-print
Here, a major challenge is the selection of optimal algorithms for preprocessing and classification (including parameterizations).  ...  Nowadays, parts of the optimization process are automized but expert knowledge and manual work are still required. We present three steps to face this process and ease the optimization.  ...  solvers and the different underlying classifier models.  ... 
arXiv:1801.04929v1 fatcat:hs7r6m7qojcrniu2v7np6745ru

Efficient inverse graphics in biological face processing

Ilker Yildirim, Mario Belledonne, Winrich Freiwald, Josh Tenenbaum
2020 Science Advances  
Inverting generative models, or "analysis-by-synthesis", presents a possible solution, but its mechanistic implementations have typically been too slow for online perception, and their mapping to neural  ...  Vision not only detects and recognizes objects, but performs rich inferences about the underlying scene structure that causes the patterns of light we see.  ...  for its strong performance (but has little effect on VGG; see section S1.1 and fig.  ... 
doi:10.1126/sciadv.aax5979 pmid:32181338 pmcid:PMC7056304 fatcat:zbec5hkntjb2hpc4q3tdwwrf2a

Certifying Unstability of Switched Systems Using Sum of Squares Programming

Benoît Legat, Pablo Parrilo, Raphaël Jungers
2020 SIAM Journal of Control and Optimization  
From an analysis and controller design point of view, it is known that GSPT and its adaptation to control systems [4], provide mathematical tools to understand the dynamics, and design controllers from  ...  This alternative way of analysis of slow-fast systems with particular structure may lead to a later analysis of multi-timescale systems over networks.  ...  Therefore, it is necessary to perform a rigorous analysis for the system's dynamics.  ... 
doi:10.1137/18m1173460 fatcat:ytlzbwk7vbampbuyo6snenz33m
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