Key publications

1. ON SPACE EXPLORATION

“An introduction to JPL’s Orbit Determination program”.

Panagiotacopulos, N. D., Zielenbach, J. W.Duesing, R. W.

JET PROPULSION LABORATORY TR 1846-37, CALIFORNIA INSTITUTE OF

TECHNOLOGY, Pasadena, California, May 21, 1974.

http://trs-new.jpl.nasa.gov/dspace/handle/2014/41358

“Orbit determination strategy and results for the pioneer Venus Orbiter Mission”.

R. A. Jacobson B. G. Williams N. D. Panagiotacopulos

P.W. Birkeland W. E. Kirhofer

ADVANCES IN THE ASTRONAUTICAL SCIENCES: ASTRODYNAMICS 1979,

Vol. 40, Editors P. Penzo, L. Friedman, R. Battin, AMERICAN ASTRONAUTICAL

SOCIETY Publication Office, San Diego, California, pp. 251-272, 1980.

http://www.researchgate.net/publication/4710191_Orbit_determination_strategy_and_results_for_the_Pioneer_Venus_Orbiter_mission

“Venus gravity field: Pioneer Venus orbiter navigation results”.

B. G. Williams, N. A. Mottinger, N.D. Panagiotacopulos

ICARUS, 56, pp. 578-589, 1983.

http://www.researchgate.net/publication/222977221_Venus_gravity_field_Pioneer_Venus_orbiter_navigation_results

“Wavelets and the Gravity Field of the Moon”.

Keneth Friesen, Nick Panagiotacopulos

Advances in Physics, Electronics, and Signal Processing Applications(a series of reference books and textbooks in Mathematics, Computer Science, and Engineering), pp.303-308, July 2000, World Scientific Press.

http://www.wseas.us/e-library/conferences/athens2000/Papers2000/495.pdf

2. ON BIOMECHANICS AND MEDICAL IMAGING

“Water effects on the Viscoelastic material properties of Human Intervertebral Disc”.

N. D. Panagiotacopulos, R. Bloch, W. G. Knauss, P. Harvey, M. Patzakis

AFOSR (Air Force Office of Scientific Research) Interim Report (November 1976-January 1978, TR-78-0054, January 1978.

http://authors.library.caltech.edu/25644/1/Grantno77-3139.pdf

“Effect of Water on the Mechanical Relaxation of Human Intervertebral Disc Material”. N. D. Panagiotacopulos, R. Bloch and W. G. Knauss

Proceedings of the Third International Congress of Biorheology

August 28- September 1, 1978, La Jolla, California USA

http://catalog.hathitrust.org/Record/009464889

“On the mechanical properties of human intervertebral disc material”.

N. D. Panagiotacopulos, W.G. Knauss, R. Bloch

BIORHEOLOGY 02/1979: 16(4-5)317-330

http://www.ncbi.nlm.nih.gov/pubmed/161177

“Digital Image Processing, a Potential Noninvasive Technique in the Diagnosis of Diseased Human Intervertebral Discs”.

N. D. Panagiotacopulos

SPINE: September/October 1982, Volume 7, Issue 5, pp. 506-511.

http://journals.lww.com/spinejournal/toc/1982/09000

“Digital Image Processing and Computer Graphics in Spine Research”.

Nick D. Panagiotacopulos. AUTOMEDICA, Vol. 6, pp. 51-69, 1985.

In this paper, a paragraph is devoted to a simple diagnostic method on SCOLIOSIS introduced by Dr. Nick

http://dl.acm.org/citation.cfm?id=12230

“A Mechanical Model for the Human Intervertebral Disc”.

Nick D. Panagiotacopulos, Malcolm H. Pope, Martin H. Krag, Ricardo Bloch

JOURNAL OF BIOMECHANICS, Vol. 20, No. 9, 1987, pp. 839-850.

http://www.jbiomech.com/article/0021-9290(87)90144-8/abstract

“Water content in Human Intervertebral Discs PART I: Measurement by Magnetic Resonance Imaging”. An Award winning paper (see list of awards).

N. D. Panagiotacopulos, H. Pope, M. H. Krag, R. Bloch

SPINE, November 1987, Volume 12, Number 9, pp. 912-917.

http://www.ncbi.nlm.nih.gov/pubmed/3441837

“Water content in Human Intervertebral Discs PART II: Viscoelastic behavior”.

N. D. Panagiotacopulos, M. H. Pope, R. Bloch, M.H. Krag

SPINE, November 1987, Volume 12, Number 9, pp. 918-924.

http://www.ncbi.nlm.nih.gov/pubmed/3441838

3. ON THE APPLICATIONOF WAVELETS TO MEDICAL SIGNAL ANALYSIS

“Time-Frequency evaluation of surface EMG signals”.

Pope MH, Aleksiev A, Panagiotacopulos ND, Wilder DG, Friesen K, Stielau W.

Proceedings of the ISSLS (Second International Society for the Study of the Lumbar Spine), Burlington, Vermont, June 25-29, 1996.

http://www.researchgate.net/publication/12385109_Evaluation_of_low_back_muscle_surface_EMG_signals_using_wavelets

“Detection of wire EMG activity in whiplash injuries using Wavelets”.

N. D. Panagiotacopulos, J.C. Lee, M.H. Pope, M.L.Magnusson, K. Friesen, and W. Stielau

IOWA Orthopedic Journal, 1997, Vol.17, pp. 134-148.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2378100/

“Fatigue identification from low back Surface EMG signals using Wavelets”,

N. D. Panagioacopulos, J. C. Lee, M. H. Pope, D. G. Wilder, K. Friesen, W. Stielau

8th Annual Meeting of the European Spine Society, September 13-15, 1997, in Kos, Greece.

http://www.chaseergo.com/research_08.html

“Evaluation of EMG signals from rehabilitated patients with low back pain using Wavelets”. Nick D. Panagiotacopulos, Jae S. Lee, Malcolm H. Pope, Ken Friesen

Journal of Electromyography and Kinesiology, Special Issue: Vol. 8, Issue 4,

August 1998, pages 269-278.

http://www.sciencedirect.com/science/article/pii/S1050641198000133

“Entropy based fatigue identification in spinal surface Electromyo-graphy signals using Wavelets”. N. D. Panagiotacopulos, J. C. Lee, K. Friesen, L. Wan

Advances in Intelligent Systems: Concepts, Tools and Applications,Chapter 43,

pages 487-498, 1999. Kluwer Academic Publishers.

http://link.springer.com/chapter/10.1007/978-94-011-4840-5_43

“A new method for the analysis of EMG signals from rehabilitated patients with low back pain using Wavelets”.

Nick D. Panagiotacopulos, J. S. Lee, Ken Friesen, M. H. Pope

Proceedings of the Japanese Spine Society and North American Spine Society.

Kamuela, Big Island, Hawaii, pp.147-148, July 2000.

https://www.spine.org/Documents/EducationEvents/SAS2000Proceedings.pdf

“Wavelets, Nuclear Magnetic Resonance Spectroscopy, and Head Traumas”.

Shic Frederick, Lin Alexander, Ross Brian D, Shelden CH, Panagiotacopulos Nick D., Lertsuntivit Sukit, Sanidge Lee Ann

Advances in Physics, Electronics, and Signal Processing Applications (a series of reference books and textbooks in Mathematics,Computer Science, and Engineering), World Scientific Press, pp.297-302, July 2000. .

http://www.wseas.us/e-library/conferences/athens2000/Papers2000/403.pdf

“Wavelets, Nuclear Magnetic Resonance Spectroscopy, and the chemical composition of tumors-some interesting results”.

Panagiotacopulos Nick D., Lertsuntivit Sukit, Sanidge Lee Ann, Shic Frederick, Lin Alexander, Ross Brian D, Shelden CH

Advances in Physics, Electronics, and Signal Processing Applications (a series of reference books and textbooks in Mathematics, Computer Science, and Engineering).World Scientific Press, pp.290-296, July 2000.

http://www.wseas.us/e-library/conferences/athens2000/Papers2000/402.pdf

“Evaluation of low back muscle surface EMG signals using Wavelets”.

M. H. Pope, A. Aleksiev, N. D. Panagiotacopulos, J. C. Lee, D. G. Wilder,

K. Friesen, W. Stielau, V. K. Goel

Clinical Biomechanics, October 2000, Volume 15, Issue 8, pp.567-573.

http://www.clinbiomech.com/article/S0268-0033(00)00024-3/abstract

“Definition of Neurochemical Patterns of Human Head Injury in Human MRS Using Wavelet Analysis”.

Frederick Shic, Alexander Lin, C H Shelden, Nick Panagiotacopulos, Brian Ross

Proc. Intl. Soc. Mag. Resonance. Med 9, July 2001 Glasgow, Scotland

http://www.researchgate.net/profile/Frederick_Shic/publication/266167892_Definition_of_the_Neurochemical_Patterns_of_Human_Head_Injury_in_1_H_MRS_Using_Wavelet_Analysis/links/54b678530cf24eb34f6d213b.pdf

“A Continuous Wavelet Transform treatment of Surface Electromyographic Signals obtained from Patients with Low Back Pain before and after rehabilitation”. N. D. Panagiotacopulos, M. L. Amos, D. G. Panayotakopoulos

IMAGE PROCESSING AND COMMUNICATIONS, INTELLIGENT SENSING, IMAGE PROCESSING AND APPLICATIONS, pp.113-120, Vol.8,No.2, 2002.

https://www.infona.pl/resource/bwmeta1.element.baztech-article-BAT2-0001-0283

“Wavelet Analysis of Low Back Surface EMG Signals Subject to Unexpected Load”.

M. H. Pope, N. D. Panagiotacopulos,w. Stielau, K. Friesen

JOURNAL OF MECHANICS AND BIOLOGY, WORLD SCIENTIFIC,

Vol. 4, No. 3, pp. 389-400, 2004.

http://www.researchgate.net/publication/263805765_WAVELET_ANALYSIS_OF_LOW_BACK_SURFACE_EMG_SIGNALS_SUBJECT_TO_UNEXPECTED_LOAD

4. ON THE APPLICATION OF WAVELETS TO DATA COMPRESSION

“Wavelet Image Compression: A comparative study”.

K. Friesen, N. D. Panagiotacopulos, S. Lersuntivit, J. C. Lee

Advances in Intelligent Systems: Concepts, Tools and Applications, Chapter 24, pages 265-276, 1999. Kluwer Academic Publishers.

http://link.springer.com/chapter/10.1007/978-94-011-4840-5_24#page-1

“Lossy Image Compression using Wavelets”.

Nick D. Panagiotacopulos, Ken Friesen, Sukit Lertsuntivit

Journal of Intelligence and Robotic Systems: Special Issue: Theory & Applications, Vol.28, Nos.1-2, pp. 39-59, June 2000.

http://dl.acm.org/citation.cfm?id=595634

5. ON OTHER FIELDS

“Surface displacement of an end loaded semi-infinite circular cylinder”. (No electronic link is available for this publication). Nick Panagiotacopulos, Amos Levin

GALCIT SM 65-2, Firestone Flight Sciences Lab, Graduate Aeronautical Laboratories, CALIFORNIA INSTITUTE OF TECHNOLOGY, Pasadena, California, November 1965.

“Application of Wavelet analysis for the detection of Electromagnetic field transients obtained from machines”.

Nick D. Panagiotacopulos, Lee Ann Savidge

System Analysis-Modeling Simulation Journal,(SAMS), Special Issue: Analysis and Control of Technological Systems, Vol.38, Issue 2, Aug. 2000, pp.187-201.

http://dl.acm.org/citation.cfm?id=354603