Chen, J., Pan, Z., Butala, M.D., (2024) A Post-processing Computational Fluid Dynamics System for Turbomachinery Journal of Physics: Conference Series (doi: 10.1088/1742-6596/2741/1/012007)(eid: 2-s2.0-85191979757)(issn: 17426596 17426588); source: Scopus - Elsevier

Li, X., Valliappan, S.P., Shukhobodskaia, D., Butala, M.D., Rodriguez, L., Magdalenic, J., Delouille, V., (2024) A Transfer Learning Method to Generate Synthetic Synoptic Magnetograms Space Weather (doi: 10.1029/2023SW003499)(eid: 2-s2.0-85182854694)(issn: 15427390); source: Scopus - Elsevier

Zhou, C., Butala, M.D., Xu, Y., Demartino, C., Spencer, B.F., (2024) FE-based bridge weigh-in-motion based on an adaptive augmented Kalman filter Mechanical Systems and Signal Processing (doi: 10.1016/j.ymssp.2024.111530)(eid: 2-s2.0-85195093490)(issn: 10961216 08883270); source: Scopus - Elsevier

Xiaoyue Li, Senthamizh Pavai Valliappan, Daria Shukhobodskaia, Mark D Butala, Luciano Rodriguez, Jasmina Magdalenic, Veronique Delouille, (2023) A Transfer Learning Method to Generate Synthetic Synoptic Magnetograms (doi: 10.22541/essoar.168121495.53024244/v1); source: Crossref

Pesantez, J.E., Li, B., Lee, C., Zhao, Z., Butala, M., Stillwell, A.S., (2023) A Comparison Study of Predictive Models for Electricity Demand in a Diverse Urban Environment Energy (doi: 10.1016/j.energy.2023.129142)(eid: 2-s2.0-85173076606)(issn: 03605442); source: Scopus - Elsevier

Shang, K., Li, X., Butala, M.D., (2023) A Style-Based Model for MRI to CT Image Translation 2023 9th International Conference on Computer and Communications, ICCC 2023 (doi: 10.1109/ICCC59590.2023.10507386)(eid: 2-s2.0-85192973002)(isbn: 9798350317251); source: Scopus - Elsevier

Wang, Z., Qin, B., Sun, H., Zhang, J., Butala, M.D., Demartino, C., Peng, P., Wang, H., (2023) An imbalanced semi-supervised wind turbine blade icing detection method based on contrastive learning Renewable Energy (doi: 10.1016/j.renene.2023.05.026)(eid: 2-s2.0-85159801002)(issn: 18790682 09601481); source: Scopus - Elsevier

Liu, X., Zheng, R., Butala, M.D., (2023) Application of Vehicle Tracking Algorithm in Bridge Load Monitoring 2023 3rd International Conference on Consumer Electronics and Computer Engineering, ICCECE 2023 (doi: 10.1109/ICCECE58074.2023.10135177)(eid: 2-s2.0-85163164697)(isbn: 9798350331578); source: Scopus - Elsevier

Li, X., Shang, K., Wang, G., Butala, M.D., (2023) DDMM-Synth: A Denoising Diffusion Model for Cross-modal Medical Image Synthesis with Sparse-view Measurement Embedding arXiv (doi: 10.48550/arXiv.2303.15770)(eid: 2-s2.0-85152123644)(issn: 23318422); source: Scopus - Elsevier

Pan, Z., Chen, J., Butala, M.D., (2023) Development of a Universal Post-processing Tool for Computational Fluid Dynamics Datasets CFD post-processing tool Development, design and optimization of a lightweight and portable CFD post-processing tool based on VTK and QT ACM International Conference Proceeding Series (doi: 10.1145/3650400.3650586)(eid: 2-s2.0-85191420715)(isbn: 9798400708305); source: Scopus - Elsevier

Xu, X., Butala, M.D., (2023) Electromagnetic Transfer Function Confidence Analysis Evaluated at Usarray Site NDE29 International Geoscience and Remote Sensing Symposium (IGARSS) (doi: 10.1109/IGARSS52108.2023.10282745)(eid: 2-s2.0-85178320667)(isbn: 9798350320107); source: Scopus - Elsevier

Wang, Z., Qin, B., Li, M., Zhan, C., Butala, M.D., Peng, P., Wang, H., (2023) Hard Sample Mining Enabled Supervised Contrastive Feature Learning for Wind Turbine Pitch System Fault Diagnosis arXiv (doi: 10.48550/arXiv.2306.14701)(eid: 2-s2.0-85171901525)(issn: 23318422); source: Scopus - Elsevier

Zheng, R., Liu, X., Butala, M.D., (2023) Multi-Instrument Polyphonic Melody Transcription Based on Deep Learning 2023 3rd International Conference on Consumer Electronics and Computer Engineering, ICCECE 2023 (doi: 10.1109/ICCECE58074.2023.10135397)(eid: 2-s2.0-85163204968)(isbn: 9798350331578); source: Scopus - Elsevier

Wang, Z., Tang, H., Wang, H., Qin, B., Butala, M.D., Shen, W., Wang, H., (2023) Weighted Joint Maximum Mean Discrepancy Enabled Multi-Source-Multi-Target Unsupervised Domain Adaptation Fault Diagnosis arXiv (doi: 10.48550/arXiv.2310.14790)(eid: 2-s2.0-85175230852)(issn: 23318422); source: Scopus - Elsevier

Xu, X., Yang, B., Butala, M.D., (2022) A Parametric Method for Robust Magnetotelluric Transfer Function Estimation Evaluated with Data at Different Sampling Frequencies International Geoscience and Remote Sensing Symposium (IGARSS) (doi: 10.1109/IGARSS46834.2022.9884620)(eid: 2-s2.0-85140385342)(isbn: 9781665427920); source: Scopus - Elsevier

Zhou, C., Xiao, D., Hu, J., Yang, Y., Li, B., Hu, S., Demartino, C., Butala, M., (2022) An Example of Digital Twins for Bridge Monitoring and Maintenance: Preliminary Results Lecture Notes in Civil Engineering (doi: 10.1007/978-3-030-91877-4_129)(eid: 2-s2.0-85121926758)(isbn: 9783030918767)(issn: 23662565 23662557); source: Scopus - Elsevier

Karimi, P., Butala, M.D., Zhao, Z., Kamalabadi, F., (2022) Efficient Model Selection in Switching Linear Dynamic Systems by Graph Clustering IEEE Signal Processing Letters (doi: 10.1109/LSP.2022.3226113)(eid: 2-s2.0-85144066143)(issn: 15582361 10709908); source: Scopus - Elsevier

Wang, C., Xu, X., Pi, X., Butala, M.D., Huang, W., Yin, L., Peng, W., Ali, M., Bodepudi, S.C., Qiao, X., Xu, Y., Sun, W., Yang, D., (2022) Neuromorphic device based on silicon nanosheets Nature Communications (doi: 10.1038/s41467-022-32884-y)(eid: 2-s2.0-85137213182)(issn: 20411723); source: Scopus - Elsevier

Xu, X., Butala, M.D., (2022) Parametric Magnetotelluric Impedance Tensor Estimation IEEE Transactions on Geoscience and Remote Sensing (doi: 10.1109/TGRS.2022.3140460)(eid: 2-s2.0-85122595463)(issn: 15580644 01962892); source: Scopus - Elsevier

Liu, X., Zheng, R., Wang, H., Butala, M.D., Liu, D., Ren, X., Hu, S., (2021) A Knowledge Management Framework for Vehicle Hazard Analysis Proceedings - 2021 IEEE International Conference on e-Business Engineering, ICEBE 2021 (doi: 10.1109/ICEBE52470.2021.00023)(eid: 2-s2.0-85128727859)(isbn: 9781665444187); source: Scopus - Elsevier

Xu, X., Butala, M.D., (2021) A Remote-Reference-Free Parametric Method for Robust Magnetotelluric Impedance Tensor Estimation Evaluated at Several USArray Sites GSMM 2021 - 2021 Global Symposium on Millimeter-Waves and Terahertz, Proceedings (doi: 10.1109/GSMM53250.2021.9511896)(eid: 2-s2.0-85114125881)(isbn: 9781665437431); source: Scopus - Elsevier

Xu, X., Butala, M.D., (2021) AN EVALUATION OF ROBUST REMOTE REFERENCE AND PARAMETRIC MAGNETOTELLURIC TRANSFER FUNCTION ESTIMATION International Geoscience and Remote Sensing Symposium (IGARSS) (doi: 10.1109/IGARSS47720.2021.9553606)(eid: 2-s2.0-85126062540)(isbn: 9781665403696); source: Scopus - Elsevier

Yang, S., Chen, X., Wang, C., Chen, Q., Wu, C., Feng, Z., Butala, M.D., Li, E.-P., (2021) Efficient Nonlinear Behavior Modeling Method for Voltage-Variable Capacitors IEEE Transactions on Components, Packaging and Manufacturing Technology (doi: 10.1109/TCPMT.2021.3057115)(eid: 2-s2.0-85101453081)(issn: 21563985 21563950); source: Scopus - Elsevier

Karimi, P., Zhao, Z., Butala, M.D., Kamalabadi, F., (2021) Quantification of Mismatch Error in Randomly Switching Linear State-Space Models IEEE Signal Processing Letters (doi: 10.1109/LSP.2021.3116504)(eid: 2-s2.0-85116932124)(issn: 15582361 10709908); source: Scopus - Elsevier

Karimi, P., Butala, M., Zhao, Z., Kamalabadi, F., (2021) Spatial-temporal switching estimators for imaging locally concentrated dynamics arXiv (doi: 10.48550/arxiv.2102.10167)(eid: 2-s2.0-85170881423)(issn: 23318422); source: Scopus - Elsevier

Karimi, P., Butala, M.D., Zhao, Z., Kamalabadi, F., (2020) Efficient model selection in switching linear dynamic systems by graph clustering arXiv (doi: 10.48550/arxiv.2012.04543)(eid: 2-s2.0-85169217629)(issn: 23318422); source: Scopus - Elsevier

Karimi, P., Zhao, Z., Butala, M., Kamalabadi, F., (2020) Quantification of mismatch error in randomly switching linear state-space models arXiv (doi: 10.48550/arxiv.2012.04542)(eid: 2-s2.0-85171045965)(issn: 23318422); source: Scopus - Elsevier

Jin, H., Ma, H., Butala, M.D., Liu, E.-X., Li, E.-P., (2019) EMI Radiation Prediction and Structure Optimization of Packages by Deep Learning IEEE Access (doi: 10.1109/ACCESS.2019.2927160)(eid: 2-s2.0-85073891400)(issn: 21693536); source: Scopus - Elsevier

Xu, X., Butala, M.D., (2019) Parametric electromagnetic transfer function estimation at USArray Site MNF34 IOP Conference Series: Earth and Environmental Science (doi: 10.1088/1755-1315/349/1/012047)(eid: 2-s2.0-85074686892)(issn: 17551315 17551307); source: Scopus - Elsevier

Grawe, M.A., Makela, J.J., Butala, M.D., Kamalabadi, F., (2018) The Impact of Magnetic Field Temporal Sampling on Modeled Surface Electric Fields Space Weather (doi: 10.1029/2018SW001896)(eid: 2-s2.0-85056202893)(issn: 15427390); source: Scopus - Elsevier

Butala, M.D., Kazerooni, M., Makela, J.J., Kamalabadi, F., Gannon, J.L., Zhu, H., Overbye, T.J., (2017) Modeling Geomagnetically Induced Currents From Magnetometer Measurements: Spatial Scale Assessed With Reference Measurements Space Weather (doi: 10.1002/2017SW001602)(eid: 2-s2.0-85034436811)(issn: 15427390); source: Scopus - Elsevier

Durgonics, T., Komjathy, A., Verkhoglyadova, O., Shume, E.B., Benzon, H.-H., Mannucci, A.J., Butala, M.D., Høeg, P., Langley, R.B., (2017) Multiinstrument observations of a geomagnetic storm and its effects on the Arctic ionosphere: A case study of the 19 February 2014 storm Radio Science (doi: 10.1002/2016RS006106)(eid: 2-s2.0-85012918961)(issn: 1944799X 00486604); source: Scopus - Elsevier

Vergados, P., Komjathy, A., Runge, T.F., Butala, M.D., Mannucci, A.J., (2016) Characterization of the impact of GLONASS observables on receiver bias estimation for ionospheric studies Radio Science (doi: 10.1002/2015RS005831)(eid: 2-s2.0-84978375371)(issn: 1944799X 00486604); source: Scopus - Elsevier

Schunk, R.W., Scherliess, L., Eccles, V., Gardner, L.C., Sojka, J.J., Zhu, L., Pi, X., Mannucci, A.J., Butala, M., Wilson, B.D., Komjathy, A., Wang, C., Rosen, G., (2016) Space weather forecasting with a Multimodel Ensemble Prediction System (MEPS) Radio Science (doi: 10.1002/2015RS005888)(eid: 2-s2.0-84979642649)(issn: 1944799X 00486604); source: Scopus - Elsevier

Shume, E.B., Komjathy, A., Langley, R.B., Verkhoglyadova, O., Butala, M.D., Mannucci, A.J., (2015) Intermediate-scale plasma irregularities in the polar ionosphere inferred from GPS radio occultation Geophysical Research Letters (doi: 10.1002/2014GL062558)(eid: 2-s2.0-84925136524)(issn: 19448007 00948276); source: Scopus - Elsevier

Schunk, R.W., Scherliess, L., Eccles, V., Gardner, L.C., Sojka, J.J., Zhu, L., Pi, X., Mannucci, A.J., Butala, M., Wilson, B.D., Komjathy, A., Wang, C., Rosen, G., (2014) Multimodel ensemble prediction system for space weather applications Institute of Navigation International Technical Meeting 2014, ITM 2014 (eid: 2-s2.0-84904015905)(isbn: 9781632660800); source: Scopus - Elsevier

Shume, E.B., Komjathy, A., Langley, R.B., Verkhoglyadova, O., Butala, M.D., Mannucci, A.J., (2014) Phase scintillation estimates in the polar ionosphere inferred from radio occultation on board CASSIOPE: A summary 27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014 (eid: 2-s2.0-84939422719)(isbn: 9781634399913); source: Scopus - Elsevier

Yang, Y.-M., Komjathy, A., Meng, X., Langley, R.B., Butala, M.D., Shume, E.B., Mannucci, A.J., (2014) Space-Based remote sensing of Natural-Hazard-Induced Ionosphere-Thermosphere Perturbations 27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014 (eid: 2-s2.0-84939431977)(isbn: 9781634399913); source: Scopus - Elsevier

Shim, J.S., Kuznetsova, M., Rastätter, L., Bilitza, D., Butala, M., Codrescu, M., Emery, B.A., Foster, B., Fuller-Rowell, T.J., Huba, J., Mannucci, A.J., Pi, X., Ridley, A., Scherliess, L., Schunk, R.W., Sojka, J.J., Stephens, P., Thompson, D.C., Weimer, D., Zhu, L., Anderson, D., Chau, J.L., Sutton, E., (2014) Systematic Evaluation of Ionosphere/Thermosphere (IT) Models: CEDAR Electrodynamics Thermosphere Ionosphere (ETI) Challenge (2009-2010) Modeling the Ionosphere-Thermosphere System (doi: 10.1002/9781118704417.ch13)(eid: 2-s2.0-84926164939)(isbn: 9781118704417 9780875904917); source: Scopus - Elsevier

Yang, Y.-M., Komjathy, A., Langley, R.B., Vergados, P., Butala, M.D., Mannucci, A.J., (2014) The 2013 Chelyabinsk meteor ionospheric impact studied using GPS measurements Radio Science (doi: 10.1002/2013RS005344)(eid: 2-s2.0-84900932335)(issn: 1944799X 00486604); source: Scopus - Elsevier

Shume, E.B., Rodrigues, F.S., de Paula, E.R., Batista, I.S., Butala, M.D., Galvan, D.A., (2013) Day-time F region echoes observed by the São Luís radar Journal of Atmospheric and Solar-Terrestrial Physics (doi: 10.1016/j.jastp.2013.02.003)(eid: 2-s2.0-84884134554)(issn: 13646826); source: Scopus - Elsevier

Garcia-Fernandez, M., Desai, S.D., Butala, M.D., Komjathy, A., (2013) Evaluation of different approaches to modeling the second-order ionospheric delay on GPS measurements Journal of Geophysical Research: Space Physics (doi: 10.1002/2013JA019356)(eid: 2-s2.0-84892569032)(issn: 21699402); source: Scopus - Elsevier

Shume, E.B., Mannucci, A.J., Butala, M.D., Pi, X., Valladares, C.E., (2013) Flux tube analysis of L-band ionospheric scintillation Journal of Geophysical Research: Space Physics (doi: 10.1002/jgra.50285)(eid: 2-s2.0-84882805309)(issn: 21699402); source: Scopus - Elsevier

Yang, Y.-M., Komjathy, A., Butala, M., Mannucci, A.J., Langley, R.B., Snively, J., Hickey, M., Galvan, D., Lee, J., (2013) Investigating natural hazards using GNSS measurements: The Chelyabinsk meteor Ionospheric impact 26th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2013 (eid: 2-s2.0-84899030156)(isbn: 9781629935782); source: Scopus - Elsevier

Shim, J.S., Kuznetsova, M., Rastätter, L., Bilitza, D., Butala, M., Codrescu, M., Emery, B.A., Foster, B., Fuller-Rowell, T.J., Huba, J., Mannucci, A.J., Pi, X., Ridley, A., Scherliess, L., Schunk, R.W., Sojka, J.J., Stephens, P., Thompson, D.C., Weimer, D., Zhu, L., Anderson, D., Chau, J.L., Sutton, E., (2013) Systematic evaluation of ionosphere/thermosphere (IT) models: CEDAR electrodynamics thermosphere ionosphere (ETI) challenge (2009-2010) Geophysical Monograph Series (doi: 10.1029/2012GM001293)(eid: 2-s2.0-84899535245); source: Scopus - Elsevier

Butala, M.D., (2012) A localized ensemble Kalman smoother 2012 IEEE Statistical Signal Processing Workshop, SSP 2012 (doi: 10.1109/SSP.2012.6319665)(eid: 2-s2.0-84868221516)(isbn: 9781467301831); source: Scopus - Elsevier

Shim, J.S., Kuznetsova, M., Rasttter, L., Bilitza, D., Butala, M., Codrescu, M., Emery, B.A., Foster, B., Fuller-Rowell, T.J., Huba, J., Mannucci, A.J., Pi, X., Ridley, A., Scherliess, L., Schunk, R.W., Sojka, J.J., Stephens, P., Thompson, D.C., Weimer, D., Zhu, L., Sutton, E., (2012) CEDAR electrodynamics thermosphere ionosphere (ETI) challenge for systematic assessment of ionosphere/thermosphere models: Electron density, neutral density, NmF2, and hmF2 using space based observations Space Weather (doi: 10.1029/2012SW000851)(eid: 2-s2.0-84868013989)(issn: 15427390); source: Scopus - Elsevier

Komjathy, J.A., Galvan, V.D.A., Stephens, P., Butala, M.D., Akopian, V., Wilson, B., Verkhoglyadova, O., Mannucci, A.J., Hickey, M., (2012) Detecting ionospheric TEC perturbations caused by natural hazards using a global network of GPS receivers: The Tohoku case study Earth, Planets and Space (doi: 10.5047/eps.2012.08.003)(eid: 2-s2.0-84876215455)(issn: 18805981 13438832); source: Scopus - Elsevier

Galvan, D.A., Komjathy, A., Hickey, M.P., Stephens, P., Snively, J., Tony Song, Y., Butala, M.D., Mannucci, A.J., (2012) Ionospheric signatures of Tohoku-Oki tsunami of March 11, 2011: Model comparisons near the epicenter Radio Science (doi: 10.1029/2012RS005023)(eid: 2-s2.0-84864070163)(issn: 00486604); source: Scopus - Elsevier

Thomas, J.N., Love, J.J., Komjathy, A., Verkhoglyadova, O.P., Butala, M., Rivera, N., (2012) On the reported ionospheric precursor of the 1999 Hector Mine, California earthquake Geophysical Research Letters (doi: 10.1029/2012GL051022)(eid: 2-s2.0-84859128631)(issn: 00948276); source: Scopus - Elsevier

Shim, J.S., Kuznetsova, M., Rastätter, L., Hesse, M., Bilitza, D., Butala, M., Codrescu, M., Emery, B., Foster, B., Fullerrowell, T., Huba, J., Mannucci, A.J., Pi, X., Ridley, A., Scherliess, L., Schunk, R.W., Stephens, P., Thompson, D.C., Zhu, L., Anderson, D., Chau, J.L., Sojka, J.J., Rideout, B., (2011) CEDAR Electrodynamics Thermosphere Ionosphere (ETI) Challenge for systematic assessment of ionosphere/thermosphere models: NmF2, hmF2, and vertical drift using ground-based observations Space Weather (doi: 10.1029/2011SW000727)(eid: 2-s2.0-84855388530)(issn: 15427390); source: Scopus - Elsevier

Butala, M.D., (2011) Resolution assessment in dynamic image formation Proceedings - International Conference on Image Processing, ICIP (doi: 10.1109/ICIP.2011.6116261)(eid: 2-s2.0-84856265728)(isbn: 9781457713033)(issn: 15224880); source: Scopus - Elsevier

Hewett, R.J., Heath, M.T., Butala, M.D., Kamalabadi, F., (2010) A robust null space method for linear equality constrained state estimation IEEE Transactions on Signal Processing (doi: 10.1109/TSP.2010.2048901)(eid: 2-s2.0-77954618778)(issn: 1053587X); source: Scopus - Elsevier

Butala, M.D., Hewett, R.J., Frazin, R.A., Kamalabadi, F., (2010) Dynamic three-dimensional tomography of the solar corona Solar Physics (doi: 10.1007/s11207-010-9536-1)(eid: 2-s2.0-77951977855)(issn: 00380938 1573093X); source: Scopus - Elsevier

Butala, M.D., Kamalabadi, F., (2009) Optimal dynamic tomography for wide-sense stationary spatial random fields Proceedings - International Conference on Image Processing, ICIP (doi: 10.1109/ICIP.2009.5413864)(eid: 2-s2.0-77951957266)(isbn: 9781424456543)(issn: 15224880); source: Scopus - Elsevier

Butala, M.D., Frazin, R.A., Chen, Y., Kamalabadi, F., (2009) Tomographic imaging of dynamic objects with the ensemble kalman filter IEEE Transactions on Image Processing (doi: 10.1109/TIP.2009.2017996)(eid: 2-s2.0-67649877900)(issn: 10577149); source: Scopus - Elsevier

Butala, M.D., Yun, J., Chen, Y., Frazin, R.A., Kamalabadi, F., (2008) Asymptotic convergence of the ensemble kalman filter Proceedings - International Conference on Image Processing, ICIP (doi: 10.1109/ICIP.2008.4711882)(eid: 2-s2.0-67649856054)(isbn: 1424417643 9781424417643)(issn: 15224880); source: Scopus - Elsevier

Butala, M.D., Kamalabadi, F., Frazin, R.A., Chen, Y., (2008) Dynamic tomographic imaging of the solar corona IEEE Journal on Selected Topics in Signal Processing (doi: 10.1109/JSTSP.2008.2005352)(eid: 2-s2.0-57949091805)(issn: 19324553); source: Scopus - Elsevier

George, A.K., Butala, M.D., Frazin, R.A., Kamalabadi, F., Bresler, Y., (2008) Time-resolved cardiac CT reconstruction using the ensemble Kalman filter 2008 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, Proceedings, ISBI (doi: 10.1109/ISBI.2008.4541290)(eid: 2-s2.0-51049086131)(isbn: 9781424420032); source: Scopus - Elsevier

Butala, M.D., Frazin, R.A., Yuguo, C., Kamalabadi, F., (2007) A Monte Carlo technique for large-scale dynamic tomography ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (doi: 10.1109/ICASSP.2007.367062)(eid: 2-s2.0-34547517501)(isbn: 1424407281 9781424407286)(issn: 15206149); source: Scopus - Elsevier

Cohen, O., Sokolov, I.V., Roussev, I.I., Arge, C.N., Manchester, W.B., Gombosi, T.I., Frazin, R.A., Park, H., Butala, M.D., Kamalabadi, F., Velli, M., (2007) A semiempirical magnetohydrodynamical model of the solar wind Astrophysical Journal (doi: 10.1086/511154)(eid: 2-s2.0-33846524936)(issn: 15384357 0004637X); source: Scopus - Elsevier

Waldrop, L.S., Kudeki, E., González, S.A., Sulzer, M.P., Garcia, R., Butala, M., Kamalabadi, F., (2006) Derivation of neutral oxygen density under charge exchange in the midlatitude topside ionosphere Journal of Geophysical Research: Space Physics (doi: 10.1029/2005JA011496)(eid: 2-s2.0-33947497540)(issn: 21699402); source: Scopus - Elsevier

Butala, M.D., Frazin, R.A., Kamalabadi, F., (2005) Three-dimensional estimates of the coronal electron density at times of extreme solar activity Journal of Geophysical Research: Space Physics (doi: 10.1029/2004JA010938)(eid: 2-s2.0-33747199839)(issn: 21699402); source: Scopus - Elsevier

Frazin, R.A., Butala, M.D., Kemball, A., Kamalabadi, F., (2005) Time-dependent reconstruction of nonstationary objects with tomographic or interferometric measurements Astrophysical Journal (doi: 10.1086/499431)(eid: 2-s2.0-30544447920)(issn: 0004637X 15384357); source: Scopus - Elsevier

Appadwedula, S., Baraniuk, R., Berry, M., Butala, M., Choi, H., Haun, M., Jones, D.L., Kramer, M., Moussa, D., Potter, L., Sachs, D., Wade, B., Wagner, R., (2003) Open-content signal processing laboratories in connexions ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (eid: 2-s2.0-0141563770)(issn: 15206149); source: Scopus - Elsevier