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Research Output 2001 2019

  • 334 Citations
  • 10 h-Index
  • 38 Article
2019

A least squares finite element method using Elsasser variables for magnetohydrodynamic equations

Lee, E., Ha, H. & Kim, S. D., 2019 Jan 15, In : Journal of Computational and Applied Mathematics. 346, p. 599-608 10 p.

Research output: Contribution to journalArticle

Least-squares Finite Element Method
Magnetohydrodynamic Equations
Magnetohydrodynamics
Finite element method
First-order System

Association Between Radiomics Signature and Disease-Free Survival in Conventional Papillary Thyroid Carcinoma

Park, V. Y., Han, K., Lee, E., Kim, E. K., Moon, H. J., Yoon, J. H. & Kwak, J. Y., 2019 Dec 1, In : Scientific reports. 9, 1, 4501.

Research output: Contribution to journalArticle

Open Access
Disease-Free Survival
Confidence Intervals
Biomarkers
Papillary Thyroid cancer
Therapeutics
6 Citations (Scopus)

Deep convolutional neural network for the diagnosis of thyroid nodules on ultrasound

Ko, S. Y., Lee, J. H., Yoon, J. H., Na, H., Hong, E., Han, K., Jung, I., Kim, E. K., Moon, H. J., Park, V. Y., Lee, E. & Kwak, J. Y., 2019 Apr, In : Head and Neck. 41, 4, p. 885-891 7 p.

Research output: Contribution to journalArticle

Thyroid Nodule
Thyroid Gland
Area Under Curve
Neoplasms
Ultrasonography

Texture Analysis to Differentiate Malignant Renal Tumors in Children Using Gray-Scale Ultrasonography Images

Shin, H. J., Kwak, J. Y., Lee, E., Lee, M. J., Yoon, H., Han, K. & Kim, M. J., 2019 Aug, In : Ultrasound in Medicine and Biology. 45, 8, p. 2205-2212 8 p.

Research output: Contribution to journalArticle

gray scale
Ultrasonography
tumors
textures
Kidney
2018
1 Citation (Scopus)

Histogram analysis of greyscale sonograms to differentiate between the subtypes of follicular variant of papillary thyroid cancer

Kwon, M. R., Shin, J. H., Hahn, S. Y., Oh, Y. L., Kwak, J. Y., Lee, E. & Lim, Y., 2018 Jun, In : Clinical Radiology. 73, 6, p. 591.e1-591.e7

Research output: Contribution to journalArticle

Entropy
Papillary Thyroid cancer
Thyroid Neoplasms
7 Citations (Scopus)

Radiomics of US texture features in differential diagnosis between triple-negative breast cancer and fibroadenoma

Lee, S. E., Han, K., Kwak, J. Y., Lee, E. & Kim, E. K., 2018 Dec 1, In : Scientific reports. 8, 1, 13546.

Research output: Contribution to journalArticle

Triple Negative Breast Neoplasms
Fibroadenoma
Differential Diagnosis
Pathology
Area Under Curve
2017
55 Citations (Scopus)

Critical care admission following elective surgery was not associated with survival benefit: prospective analysis of data from 27 countries

Kahan, B. C., Koulenti, D., Arvaniti, K., Beavis, V., Campbell, D., Chan, M., Moreno, R., Pearse, R. M., Pearse, R. M., Beattie, S., Clavien, P-A., Demartines, N., Fleisher, L. A., Grocott, M., Haddow, J., Hoeft, A., Holt, P., Moreno, R., Pritchard, N., Rhodes, A. & 30 others, Wijeysundera, D., Wilson, M., Ahmed, T., Everingham, K., Hewson, R., Januszewska, M., Pearse, R. M., Phull, M-K., Lee, E., Choi, S., Chen, C., Han, Y., Yang, S., Han, K., Chen, C., Chu, S., Chung, C. K. E., Lee, C., Lee, Y. C., Lee, H. S., Lee, J. M., Choi, H-MD., Kim, C. J., Kim, S., Park, K., Chang, Y. H., Chang, J., Lee, C., Lee, G. & Kim, T., 2017, In : Intensive Care Medicine. 43, 7

Research output: Contribution to journalArticle

Critical Care
Survival
Mortality
Logistic Models
Perioperative Care
3 Citations (Scopus)

Newton's algorithm for magnetohydrodynamic equations with the initial guess from Stokes-like problem

Kim, S. D., Lee, E. & Choi, W., 2017 Jan 1, In : Journal of Computational and Applied Mathematics. 309, p. 1-10 10 p.

Research output: Contribution to journalArticle

Magnetohydrodynamic Equations
Guess
Magnetohydrodynamics
Stokes
Nonlinear Partial Differential Equations
7 Citations (Scopus)

Ultrasound texture analysis: Association with lymph node metastasis of papillary thyroid microcarcinoma

Kim, S. Y., Lee, E., Nam, S. J., Kim, E. K., Moon, H. J., Yoon, J. H., Han, K. H. & Kwak, J. Y., 2017 Apr, In : PloS one. 12, 4, e0176103.

Research output: Contribution to journalArticle

metastasis
lymph nodes
Textures
Lymph Nodes
Ultrasonics
2016
1 Citation (Scopus)

A least-squares finite element method for a nonlinear Stokes problem in glaciology

Monnesland, I. S., Lee, E., Gunzburger, M. & Yoon, R., 2016 Jun 1, In : Computers and Mathematics with Applications. 71, 11, p. 2421-2431 11 p.

Research output: Contribution to journalArticle

Least-squares Finite Element Method
Stokes Problem
Ice
Nonlinear Problem
Finite element method
1 Citation (Scopus)

Remote Real Time Monitoring for Underground Contamination in Mongolia Using Electrical Impedance Tomography

Ts, M. E., Lee, E., Zhou, L., Lee, K. H. & Seo, J. K., 2016 Mar 1, In : Journal of Nondestructive Evaluation. 35, 1, p. 1-9 9 p., 8.

Research output: Contribution to journalArticle

Acoustic impedance
Tomography
Contamination
Monitoring
Electrodes

Weighted norm least squares finite element method for Poisson equation in a polyhedral domain

Jeong, S. H. & Lee, E., 2016 Jun, In : Journal of Computational and Applied Mathematics. 299, p. 35-49 15 p.

Research output: Contribution to journalArticle

Least-squares Finite Element Method
Weighted Norm
Poisson equation
Poisson's equation
Boundary Singularities
2015
15 Citations (Scopus)

Combining frequency-difference and ultrasound modulated electrical impedance tomography

Harrach, B., Lee, E. & Ullrich, M., 2015 Sep 1, In : Inverse Problems. 31, 9, 095003.

Research output: Contribution to journalArticle

Electrical Impedance Tomography
Acoustic impedance
Ultrasound
Tomography
Ultrasonics

FOSLL∗ for nonlinear partial differential equations

Lee, E., Manteuffel, T. A. & Westphal, C. R., 2015 Jan 1, In : SIAM Journal on Scientific Computing. 37, 5, p. S503-S525

Research output: Contribution to journalArticle

First-order System
Nonlinear Partial Differential Equations
Partial differential equations
Navier Stokes equations
Discontinuous Coefficients
2 Citations (Scopus)

Mathematical modeling of mechanical vibration-assisted conductivity imaging

Ammari, H., Lee, E., Kwon, H., Seo, J. K. & Woo, E. J., 2015 Jan 1, In : SIAM Journal on Applied Mathematics. 75, 3, p. 1031-1046 16 p.

Research output: Contribution to journalArticle

Mathematical Modeling
Conductivity
Vibration
Imaging
Imaging techniques

Newton- LL method for the second-order semi-linear elliptic partial differential equations

Lee, E., 2015 May 1, In : Computers and Mathematics with Applications. 69, 10, p. 1031-1044 14 p.

Research output: Contribution to journalArticle

First-order System
Linear partial differential equation
Elliptic Partial Differential Equations
Newton-Raphson method
Semilinear
2014
3 Citations (Scopus)
Mammography
Anomaly
Tissue
Breast Cancer
Conductivity
6 Citations (Scopus)

Design of a microscopic electrical impedance tomography system for 3D continuous non-destructive monitoring of tissue culture

Lee, E. J., Wi, H., McEwan, A. L., Farooq, A., Sohal, H., Woo, E. J., Seo, J. K. & Oh, T. I., 2014 Oct 6, In : BioMedical Engineering Online. 13, 1, 142.

Research output: Contribution to journalArticle

Tissue culture
Acoustic impedance
Electric Impedance
Tomography
Electrodes
1 Citation (Scopus)

Feasibility of anomaly detection and characterization using trans-admittance mammography with 60 x 60 electrode array

Zhao, M., Wi, H., Lee, E. J., Woo, E. J. & Oh, T. I., 2014 Oct 7, In : Physics in Medicine and Biology. 59, 19, p. 5831-5847 17 p., 5831.

Research output: Contribution to journalArticle

Mammography
Electrodes
Breast Neoplasms
Breast
Electric Impedance
2013
5 Citations (Scopus)

Projective electrical impedance reconstruction with two measurements

Ts, M. E., Lee, E., Seo, J. K., Harrach, B. & Kim, S., 2013 Oct 8, In : SIAM Journal on Applied Mathematics. 73, 4, p. 1659-1675 17 p.

Research output: Contribution to journalArticle

Acoustic impedance
Impedance
Probe
Voltage
Electrode
7 Citations (Scopus)

Simple ECEM algorithms using function values only

Kim, P., Kim, S. D. & Lee, E., 2013 Dec, In : Kyungpook Mathematical Journal. 53, 4, p. 573-591 19 p.

Research output: Contribution to journalArticle

Euler's method
Value Function
Interval
Jacobian matrices
Runge Kutta methods
2012
1 Citation (Scopus)

A finite element, filtered eddy-viscosity method for the navier-stokes equations with large Reynolds number

Lee, E. & Gunzburger, M. D., 2012 Jan 1, In : Journal of Mathematical Analysis and Applications. 385, 1, p. 384-398 15 p.

Research output: Contribution to journalArticle

Viscosity Method
Eddy Viscosity
Navier Stokes equations
Reynolds number
Navier-Stokes Equations
10 Citations (Scopus)

Asymptotic analysis of the membrane structure to sensitivity of frequency-difference electrical impedance tomography

Kim, S., Lee, E. J., Woo, E. J. & Seo, J. K., 2012 Jul 1, In : Inverse Problems. 28, 7, 075004.

Research output: Contribution to journalArticle

Electrical Impedance Tomography
Membrane structures
Acoustic impedance
Asymptotic analysis
Asymptotic Analysis
8 Citations (Scopus)

Bioimpedance spectroscopy tensor probe for anisotropic measurements

Kwon, H., Wi, H., Karki, B., Lee, E. J., McEwan, A., Woo, E. J., Harrach, B., Seo, J. K. & Oh, T. I., 2012 Sep 27, In : Electronics Letters. 48, 20, p. 1253-1255 3 p.

Research output: Contribution to journalArticle

Tensors
Spectroscopy
Electrodes
Blood vessels
Muscle
22 Citations (Scopus)

Breast EIT using a new projected image reconstruction method with multi-frequency measurements

Lee, E., Ts, M. E., Seo, J. K. & Woo, E. J., 2012 May 1, In : Physiological measurement. 33, 5, p. 751-765 15 p.

Research output: Contribution to journalArticle

Acoustic impedance
Computer-Assisted Image Processing
Image reconstruction
Electric Impedance
Tomography
2011
6 Citations (Scopus)

Analysis of finite element discretizations of an optimal control formulation of the image registration problem

Lee, E. & Gunzburger, M., 2011 Sep 19, In : SIAM Journal on Numerical Analysis. 49, 4, p. 1321-1349 29 p.

Research output: Contribution to journalArticle

Optimality System
Image registration
Finite Element Discretization
Image Registration
Optimal Control
5 Citations (Scopus)

Design of a microscopic electrical impedance tomography system using two current injections

Liu, Q., Oh, T. I., Wi, H., Lee, E. J., Seo, J. K. & Woo, E. J., 2011 Sep 1, In : Physiological measurement. 32, 9, p. 1505-1516 12 p., 011.

Research output: Contribution to journalArticle

Acoustic impedance
Electric Impedance
Tomography
Containers
Electrodes
11 Citations (Scopus)

Mathematical framework for a new microscopic electrical impedance tomography system

Lee, E., Seo, J. K., Woo, E. J. & Zhang, T., 2011 May 1, In : Inverse Problems. 27, 5, 055008.

Research output: Contribution to journalArticle

Electrical Impedance Tomography
Acoustic impedance
Tomography
Electrode
Containers
7 Citations (Scopus)

Optimal geometry toward uniform current density electrodes

Song, Y., Lee, E., Woo, E. J. & Seo, J. K., 2011 Jul 1, In : Inverse Problems. 27, 7, 075004.

Research output: Contribution to journalArticle

Electrode
Current density
Electrodes
Geometry
Contact
2010
3 Citations (Scopus)

Analysis of nonlinear spectral eddy-viscosity models of turbulence

Gunzburger, M., Lee, E., Saka, Y., Trenchea, C. & Wang, X., 2010 Oct 1, In : Journal of Scientific Computing. 45, 1-3, p. 294-332 39 p.

Research output: Contribution to journalArticle

Eddy Viscosity
Turbulence
Viscosity
Navier Stokes equations
Navier-Stokes Equations
16 Citations (Scopus)

An optimal control formulation of an image registration problem

Lee, E. & Gunzburger, M., 2010 Jan 1, In : Journal of Mathematical Imaging and Vision. 36, 1, p. 69-80 12 p.

Research output: Contribution to journalArticle

Lagrange multipliers
Image registration
Image Registration
optimal control
Optimal Control
2008
16 Citations (Scopus)

Weighted-norm first-order system least-squares (FOSLS) for div/curl systems with three dimensional edge singularities

Lee, E., Manteuffel, T. A. & Westphal, C. R., 2008 Nov 10, In : SIAM Journal on Numerical Analysis. 46, 3, p. 1619-1639 21 p.

Research output: Contribution to journalArticle

Edge Singularity
Weighted Norm
Curl
First-order System
Least Square Method
2007
34 Citations (Scopus)

An alternative least-squares formulation of the Navier-Stokes equations with improved mass conservation

Heys, J. J., Lee, E., Manteuffel, T. A. & McCormick, S. F., 2007 Sep 10, In : Journal of Computational Physics. 226, 1, p. 994-1006 13 p.

Research output: Contribution to journalArticle

Navier-Stokes equation
Navier Stokes equations
conservation
Conservation
finite element method
8 Citations (Scopus)

Caricature video

Lee, E. J., Kwon, J. Y. & Lee, I. K., 2007 Sep 1, In : Computer Animation and Virtual Worlds. 18, 4-5, p. 279-288 10 p.

Research output: Contribution to journalArticle

20 Citations (Scopus)

FOSLL* method for the eddy current problem with three-dimensional edge singularities

Lee, E. & Manteuffel, T. A., 2007 Dec 1, In : SIAM Journal on Numerical Analysis. 45, 2, p. 787-809 23 p.

Research output: Contribution to journalArticle

Edge Singularity
Eddy Current Problem
Eddy currents
Three-dimensional
Finite Element Method
2006
21 Citations (Scopus)

On mass-conserving least-squares methods

Heys, J. J., Lee, E., Manteuffel, T. A. & Mccormick, S. F., 2006 Dec 1, In : SIAM Journal on Scientific Computing. 28, 5, p. 1675-1693 19 p.

Research output: Contribution to journalArticle

Mass Conservation
Least Square Method
Conservation
Stationary Navier-Stokes Equations
Boundary conditions
24 Citations (Scopus)

Weighted-norm first-order system least squares (FOSLS) for problems with corner singularities

Lee, E., Manteuffel, T. A. & Westphal, C. R., 2006 Dec 1, In : SIAM Journal on Numerical Analysis. 44, 5, p. 1974-1996 23 p.

Research output: Contribution to journalArticle

Corner Singularity
Weighted Norm
First-order System
Least Squares
Least Square Method
2001
2 Citations (Scopus)
Least-squares Finite Element Method
First-order System
Stokes Equations
Finite element method
Fluxes