 A. S.
Elwakil
and M. P. Kennedy, "High frequency RC chaos generator," Proc.
5^{th} IEEE Int. Conf. on Electronics, Circuits and Systems
ICECS'98,
pp. 513516, Lisbon, Portugal, 1998.
 A. S.
Elwakil
and M. P. Kennedy, "Towards a methodology for designing autonomous
chaotic oscillators," Proc. 6^{th} Int. Specialist
Workshop on Nonlinear Dynamics of Electronic Systems NDES'98, pp. 7982, Budapest,
Hungary, 1998.
 A. S.
Elwakil
and M. P. Kennedy, "Design of a simple chaotic oscillator," Proc.
Irish Signals and Systems Conf. ISSC'98, pp. 337342, Dublin, Ireland, 1998.
 A. S.
Elwakil
and M. P. Kennedy, "Modified for chaos quadrature oscillator," Proc.
Irish Signals and Systems Conf. ISSC'99, pp. 247250, Galway, Ireland, 1999.
 A. S.
Elwakil
and M. P. Kennedy, "Chaotic oscillator configuration using a
frequencydependent negative resistor," Proc. IEEE Symposium on
Circuits & Systems ISCAS'99, pp. 399402, Orlando, USA, 1999.
 A. S.
Elwakil
and M. P. Kennedy, "A conjecture concerning the design of autonomous
chaotic oscillators," Proc. 7^{th} Int. Specialist
Workshop on Nonlinear Dynamics of Electronic Systems NDES'99, pp. 229231, Bornholm,
Denmark, 1999.
 A. S.
Elwakil
and M. P. Kennedy, "Chaotic oscillator using current conveyors,"
Proc. European Conf. Circuit Theory and Design ECCTD'99, pp. 87385, Stresa,
Italy, 1999.
 A. S. Elwakil
and M. P. Kennedy, "Systematic realization of a class of hysteresis
chaotic oscillators" Int. Symposium on Nonlinear Theory and
Applications NOLTA'99, pp. 111114, Hawaii, USA, 1999.
 A. S.
Elwakil,
K. N. Salama and M. P. Kennedy, "A system for chaos generation and
its implementation in monolithic form," Proc. IEEE Symposium on
Circuits & Systems ISCAS'00, pp. 217220, Geneva, Switzerland, 2000.
 A. S.
Elwakil
and M. P. Kennedy, "Generic RC realizations of Chua's circuit," Proc.
8^{th} Int. Specialist Workshop on Nonlinear Dynamics of
Electronic Systems NDES'00, pp. 122125, Catania, Italy, 2000.
 A. S.
Elwakil
and M. P. Kennedy, "Generic circuitindependent RC chaotic oscillator
structures," Int. Symposium on Nonlinear Theory and Applications
NOLTA'00,
pp. 1316, Geneva, Switzerland, 2000.
 A. S.
Elwakil,
"Canonical fourthorder equations for chaos generation," Proc.
9^{th} Int. Specialist Workshop on Nonlinear Dynamics of
Electronic Systems NDES'01, pp. 177180, Delft, The Netherlands, 2001.
 A. S.
Elwakil,
S. Ozoguz and M. P. Kennedy, "Creation of a complex butterfly
attractor using a novel Lorenztype system," Proc. 10^{th}
Int. Specialist Workshop on Nonlinear Dynamics of Electronic Systems
NDES'02,
pp. 2528, Izmir, Turkey,
 K. N. Salama,
S. Ozoguz and A. S. Elwakil, "Generation of nscroll chaos using
nonl;inear transconductors," Proc. IEEE Symposium on Circuits
& Systems ISCAS'03, pp. 176179, Bangkok, Thailand, 2003.
 A. S.
Elwakil,
"Nonautonomous pulsedriven chaotic oscillator based on Chua's
circuit," Proc. of the IEEE Symposium on Circuits & Systems
ISCAS'03,
pp. 136139, Bangkok, Thailand, 2003.
 A. S.
Elwakil
and S. Ozoguz, "Pulse excited RC nonautonomous chaotic oscillator
structures," Proc. IEEE Symposium on Circuits & Systems
ISCAS'04,
pp. 713715, Vancouver, Canada, 2004.
 S. Ozoguz, A.
S. Elwakil
and O. Ates, "An integrated circuit chaotic oscillator and its
application for high speed random bit generation," Proc. IEEE
Symposium on Circuits & Systems ISCAS'05, pp. 43454348, Kobe,
Japan, 2005.
 A. S.
Elwakil
and S. Ozoguz, "Multiattractors from nonautonomous chaotic oscillators,"
Proc. Int. Sym. on Nonlinear Theory and Applications NOLTA05, pp. 497500, Belgium,
2005.
 S. Ozoguz and A.
S. Elwakil,
"2D scroll grid attractors from pulseexcited nonautonomous
circuits," Proc. IEEE Symposium on Circuits & Systems ISCAS'06, pp. 706609, Kos, Greece,
2006.
 A. S. Elwakil
and S. Ozoguz, "Explaining hysteresis in electronic circuits: robust
simulation and design examples," Proc. IEEE Int. Conf.
Electronics, Circuits and Systems ICECS'06,
pp. 244247, Nice, France, 2006.
 Y. ElImam and A. S. Elwakil, "Applying recurrence
quantification and spectral analysis to represent nasalization in speech
signals," Proc. Int. Conf. Multimedia Systems and Signal
Processing WSEAS'07, pp. 129132, Hangzhou, China, 2007.
 A. S.
Elwakil
and K. N. Salama, "Improvement to the condition for oscillation of
crosscoupled sinusoidal oscillators," Proc. Int. Sym. on
Nonlinear Theory and Applications NOLTA07, pp. 710, Vancouver,
Canada, 2007.
 A. S. Elwakil,
H. AlNashash and N. Thakor, "Monitoring of global cerebral ischemia
using instantaneous phase variation plots," 30^{th} IEEE
Annual Int. Eng. in Medicine and Biology Conf.,
Vancouver, Canada, August 2008.
 A. S.
Elwakil
and K. N. Salama, "Nonlinear models of some ring oscillators," Joint
IEEE NorthEast Workshop on Circuits & Systems and NEWCASTAISA conf., USA, 2008.
 A. Abid, Q. Nasir and A. S.
Elwakil,
"Implementation of a chaotically encrypted wireless communication
system," Int. Conf. on Communications ICC'09, pp. 15, Dresden,
Germany, 2009.
 A. S. Elwakil
and S. Ozoguz, "A low frequency oscillator structure," Proc.
European Conference Circuit Theory and Design ECCTD'09,
pp. 588590, Antalya, Turkey, 2009.
 T. J. Freeborn,
B. J. Maundy and A. S. Elwakil, "On the practical realization of
higherorder filters with fractional stepping," Proc. IEEE
Symposium on Circuits & Systems ISCAS'10, pp. 10371040, Paris,
France, 2010.
 T. J. Freeborn, B. J. Maundy, and A.
S. Elwakil, "A second order approximation of the
fractional Laplacian operator for equalripple response," Midwest
Symposium on Circuits and Systems, pp. 11731176,
USA, 2010.
20112020
 A. S.
Elwakil
and B. Maundy, "Experimental technique for estimating the dispersion
coefficient of a constant phase element," Proc. European Conf.
Circuit Theory and Design ECCTD'11, pp. 8588, Linkping, Sweden, 2011.
 A. G. Radwan
and A. S. Elwakil, "The generalized exponential function and fractional
trigonometric identities," pp. 468470, Proc. European Conf.
Circuit Theory and Design ECCTD'11, pp. 8588, Linkping, Sweden, 2011.
 T. J. Freeborn,
B. J. Maundy and A. S. Elwakil, "Improved ColeCole parameter extraction
from frequency response using least squares fitting," Proc.
IEEE Symposium on Circuits & Systems ISCAS'12, pp. 337340, Seoul,
Korea, 2012.
 A. G. Radwan and A. S. Elwakil, "Transienttime fractionalspace trigonometry and application", Int. Conf. Neural Processing, pp. 4047, 2012.
 T. J. Freeborn,
B. J. Maundy and A. S. Elwakil, "Accurate time domain extraction of
supercapacitor fractionalorder model parameters," Proc.
IEEE Symposium on Circuits & Systems ISCAS'13, pp. 22592262, China,
May, 2013.
 A. Marathe, B.
J. Maundy and A. S. Elwakil, "Design of fractional notch filter with
asymmetric slopes and large values of notch magnitude", IEEE 56^{th}
Midwest Symposium on Circuits & Systems, Columbus, Ohio, August
47, 2013.
 T. J. Freeborn,
B. J. Maundy and A. S. Elwakil, "Reducing numerical complexity for Cole
impedance extraction from currentstep response", IEEE 56^{th}
Midwest Symposium on Circuits & Systems, Columbus, Ohio, August
47, 2013.
 H. Yildiz, A.
Toker, A. S. Elwakil and S. Ozoguz, "MOS only allpass filters
modified for low operating frequency range," 8^{th} IEEE
Int. Conf. Electrical and Electronics Engineering (ELECO), pp. 3639, Nov. 2013.
 L. Alani, M.
Foolad , A. Hassan and A. S. Elwakil, “Smart garbage bin,” 24^{th}
Annual IEEE Canadian Conf. Electrical and Computer Eng., pp. 001493001494, Toronto,
Canada, 2014.
 C. Psychalinos,
G. Tsirimokou and A. S. Elwakil, "Digitally programmed fractionalorder
Chebyshev filter realizations using currentmirrors," Proc.
IEEE Symposium on Circuits & Systems ISCAS'15, pp. 23372340, Portugal,
May, 2015.
 I. Dimeas, G. Tsirimokou, C. Psychalinos and
A. S. Elwakil, "Realization
of fractionalorder capacitor and inductor emulators using current
feedback operational amplifiers," Proc. Int. Symposium on
Nonlinear Theory & Applications NOLTA'15, pp. 237240, Hong Kong,
Dec., 2015.
 M. Fouda, A. G. Radwan and A. S. Elwakil, "Series and parallel circuit models containing memristors and inverse memristors," Proc. IEEE Int. Conf. on Electronics, Circuits and Systems ICECS'15, pp, 292295, Egypt, Dec. 2015.
 M. E. Fouda, A. G. Radwan, A. S. Elwakil, N. K. Nawayseh, "Review of the missing mechanical element: Memdamper," Proc. IEEE Int. Conf. on Electronics, Circuits and Systems ICECS'15, pp. 201204, Egypt, Dec. 2015.
 B. J. Maundy, T. J. Freeborn, A. S. Elwakil and A. Allagui, "Determination of supercapacitor metrics using a magnitudeonly method," Proc. IEEE Symposium on Circuits & Systems ISCAS'16, pp. 11861189, Montreal, Canada, May, 2016.
 G. Tsirimokou, C. Psychalinos and A. S. Elwakil, "SwitchedCurrent FractionalOrder Filter Designs," Proc. IEEE Symposium on Circuits & Systems ISCAS'16, pp. 682685, Montreal, Canada, May 2016.
 A. Jarndal and A. S. Elwakil, "Fractionalorder model of GaN high electron mobility transistors for switching applications," Int. Conf. on Microelectronics, Nanoelectronics and Photonics (ICMNP 2016), Stockholm, Sweden, vol. 10, pp. 788792, July 2016.
 T. J. Freeborn, A. S. Elwakil and B. J. Maundy, "Factors impacting accurate Coleimpedance extractions from magnitudeonly measurements," IEEE Int. Conf. on Syst., Man, and Cybernetics, pp. 223227, Budapest, Hungary, Oct. 2016.
 T. J. Freeborn, A. S. Elwakil and B. J. Maundy, "Electrode location impact on Coleimpedance parameters using magnitudeonly measurements," IEEE 59th Int. Midwest Symposium on Circuits and Systems (MWSCAS), Abu Dhabi, pp. 2124, Oct. 2016.
 A. Abo Bakr, A. G. Radwan, A. Madian and A. S. Elwakil, "Aging effect on apples bioimpedance using AD5933," 3rd IEEE Int. Conf. on Advances in Computational Tools for Engineering Applications (ACTEA), Beirut, Lebanon, pp. 188161, July, 2016.
 I. Dimeas, G. Tsirimokou, C. Psychalinos and A. S. Elwakil, Experimental verification of filters using fractionalorder capacitor and inductor emulators, Int. Conf. on Telecommunications and Signal Processing TSP2016, Vienna, pp. 559562, June 2016.
 A. M. Abdelaty, A. G. Radwan, A. S. Elwakil and C. Psychalinos, A Fractionalorder dynamic PV model, Int. Conf. on Telecommunications and Signal Processing TSP2016, Vienna, pp. 607610, June 2016.
 T. J. Freeborn, A. S. Elwakil and C. Psychalinos, "Analysis of a rectifier circuit realized with a fractionalorder capacitor," 28th Int. Conf. on Microelectronics (ICM2016), pp. 3336, Cairo, Egypt, Dec. 2016.
 B. J. Maundy, A. S. Elwakil, T. J. Freeborn and A. Allagui "Improved method to determine supercapacitor metrics from highpass filter response," 28th Int. Conf. on Microelectronics (ICM2016), pp. 2528, Cairo, Egypt, Dec. 2016.
 A. AlAli, A. S. Elwakil, A. Ahmad and B. J. Maundy, "Design of a portable lowcost impedance analyzer," 10th Joint Int. Conf. on Biomedical Engineering Systems and Technologies (BIOSTEC 2017) and Biomedical Electronics and Devices (BIODEVICES2017) Porto, Portugal, vol. 1, pp. 104109, Feb. 2017.
 T. J. Freeborn and A. S. Elwakil, "Variability of supercapacitor fractional order parameters extracted from discharging behavior using least squares optimization," Proc. IEEE Symposium on Circuits & Systems ISCAS'17, pp. 15101513, Baltimore, USA, May 2017.
 B. Maundy, P. Ahmadi, A. S. Elwakil, L. Belostotski and A. Madanayake, "A new 2ndorder allpass filter in 130nm CMOS," Proc. IEEE Symposium on Circuits & Systems ISCAS'17, pp. 24342438, Baltimore, USA, May 2017.
 N. Udayanga, A. Madanayake, C. Wijenayake, P. Ahmadi, L. Belostotski, L. Bruton and A. S. Elwakil, "Allpass filter synthesis of multifunctional microwave active circuits," 85th IEEE Vehicular Technology Conf. (VTC2017Spring), Sydney, Australia, June, 2017.
 B. Maundy, A. S. Elwakil A. AlAli and L. Belostotski, "Synthesis and analysis of fully differential filters using two port networks" IEEE 60th Int. Midwest Symposium on Circuits and Systems (MWSCAS), Boston, USA, pp. 11051108, August 2017.
 M. F. Tolba, A. M. AbdelAty, L. A. Said, A. S. Elwakil, A. T. Azar, A. H. Madian, A. Ounnas and A. G. Radwan, "FPGA realization of Caputo and GrünwaldLetnikov operators," 6th Int. Conf. on Modern Circuits and Systems Technologies (MOCAST), Thessaloniki, Greece, May 2017 (10.1109/MOCAST.2017.7937659).
 C. Vastarouchas, G. Tsirimokou, T. Freeborn, C. Psychalinos and A. Elwakil, "Design of a wood tissue impedance emulator in monolithic form," 23rd European Conf. on Circuit Theory and Design ECCTD 2017, Catania, Italy, Sept. 2017 (10.1109/ECCTD.2017.8093305).
 A. Elwakil, G. Tsirimokou, C. Psychalinos and B. Maundy, "Analysis and experimental verification of a fractionalorder Hartley oscillator," 23rd European Conf. on Circuit Theory and Design ECCTD 2017, Catania, Italy, Sept. 2017 (10.1109/ECCTD.2017.8093312).
 I. Dimeas, C. Psychalinos, A. S. Elwakil and A. Tepljakov, "OTAC realization of PI^{lambda} brake and throttle controllers for autonomous vehicles," 23rd European Conf. on Circuit Theory and Design ECCTD 2017, Catania, Italy, Sept. 2017 (10.1109/ECCTD.2017.8093229).
 T. Freeborn, A. Allagui and A. S. Elwakil, " Modeling supercapacitors leakage behavior using a fractionalorder model" 23rd European Conf. on Circuit Theory and Design ECCTD 2017, Catania, Italy, Sept. 2017 (10.1109/ECCTD.2017.8093337).
 T. Freeborn, A. S. Elwakil and A. Allagui, "
Supercapacitor fractionalorder model discharging from polynomial timevarying currents " Proc. IEEE Symposium on Circuits & Systems ISCAS'18, Florence, Italy, May 2018 (doi: 10.1109/ISCAS.2018.8351010).
 C. Vastarouchas, C. Psychalinos and A. S. Elwakil, " Fractionalorder model of a commercial ear simulator," Proc. IEEE Symposium on Circuits & Systems ISCAS'18, Florence, Italy, May 2018 (
doi: 10.1109/ISCAS.2018.8351400).

P. Bertsias, L. Safari, S. Minaei, Ahmed Elwakil and C. Psychalinos, "Fractionalorder differentiators and integrators with reduced circuit complexity," Proc. IEEE Symposium on Circuits & Systems ISCAS'18, Florence, Italy, May 2018 (doi: 10.1109/ISCAS.2018.8351452). A. AlAli, B. J. Maundy and A. S. Elwakil "Design and implementation of a bioimpedance analyzer based on the KramersKronig transform," Proc. IEEE Symposium on Circuits & Systems ISCAS'18, Florence, Italy, May 2018 (doi: 10.1109/ISCAS.2018.8351061). M. B. Elamien, B. J. Maundy, L. Belostotski and A. S. Elwakil "A 28 GHz Qtunable fully differential bandpass filter in 65nm CMOS technology," IEEE 61st Int. Midwest Symposium on Circuits and Systems (MWSCAS), Windsor, Canada, pp. 105108, August 2018. B. J. Maundy, A. S. Elwakil and C. Psychalinos "On a class of quadrature phase oscillators using differential pairs," IEEE 61st Int. Midwest Symposium on Circuits and Systems (MWSCAS), Windsor, Canada, pp. 912, August 2018. B. J. Maundy, A. S. Elwakil, M. B. Elamien and A. AlHammadi "Synthesis of a family of differential crosscoupled oscillators and design application," IEEE 61st Int. Midwest Symposium on Circuits and Systems (MWSCAS), Windsor, Canada, pp. 1316, August 2018. A. A. AlAli, A. S. Elwakil and B. J. Maundy, "Bioimpedance measurements with phase extraction using the KramersKronig transform: Application to strawberry aging," IEEE 61st Int. Midwest Symposium on Circuits and Systems (MWSCAS), Windsor, Canada, pp. 468471, August 2018. G. Tsirimokou, C. Psychalinos, A. S. Elwakil, B. Maundy, "Fractionalorder multiphase sinusoidal oscillator design using currentmirrors," 41st Int. Conf. on Telecommunications and Signal Processing TSP2018, Athens, Greece, pp. 342245, July 2018. P. Bertsias, C. Psychalinos and A. S. Elwakil, "Fractionalorder Mihalas–Niebur neuron model implementation using currentmirrors," 6th Int. Conf. on Control, Decision and Information Technologies (CODIT'19), Paris, France, April 2019. S. Kapoulea, A. M. AbdelAty, A. S. Elwakil, C. Psychalinos and A. G. Radwan,"ColeCole bioimpedance parameters extraction from a single timedomain measurement," 8th Int. Conf. on Modern Circuits and Systems Technologies (MOCAST), Thessaloniki, Greece, 2019. P. Bertsias, C. Psychalinos, A. S. Elwakil and B. J. Maundy,"Simple multifunction fractionalorder filter designs," 8th Int. Conf. on Modern Circuits and Systems Technologies (MOCAST), Thessaloniki, Greece, 2019. M. B. Elamien, B. J. Maundy, L. Belostotski, A. S. Elwakil and S. A. Mahmoud, "A wideband delaytunable fully differential allpass filter in 65nm CMOS technology," IEEE Int. Symposium on Circuits and Systems (ISCAS), Sapporo, Japan, pp. 8702370, May 2019. M. E. Fouda, A. AboBakr, A. S. Elwakil, A. G. Radwan and A. M. Eltawil, "Simple MOS transistorbased realization of fractionalorder capacitors," IEEE Int. Symposium on Circuits and Systems (ISCAS), Sapporo, Japan, pp. 8702341, May 2019. V. Alimisis, P. Bertsias, C. Psychalinos and A. S. Elwakil, "Electronically tunable implementation of the arterial viscoelasticity model," 42nd Int. Conf. on Telecommunications and Signal Processing TSP2019, Budapest, Hungary, pp. 145148, July 2019. P. Bertsias, C. Psychalinos, A. S. Elwakil and A. G. Radwan, "Logdomain implementation of fractionalorder element emulators," 42nd Int. Conf. on Telecommunications and Signal Processing TSP2019, Budapest, Hungary, pp. 106109, July 2019. Z. Papachristopoulou, S. Kapoulea, C. Psychalinos and A. S. Elwakil, "Design of fractionalorder emulator of the cardiac tissue electrode interface," 42nd Int. Conf. on Telecommunications and Signal Processing TSP2019, Budapest, Hungary, pp. 114117, July 2019. C. Vasi, S. Kapoulea, C. Psychalinos, A. S. Elwakil and L. Said, "Design of fractionalorder differentiatorlowpass filters for extracting the R peaks in ECG signals," 42nd Int. Conf. on Telecommunications and Signal Processing TSP2019, Budapest, Hungary, pp. 110113, July 2019. S. Kapoulea, G. Tsirimokou, C. Psychalinos and A. S. Elwakil, "OTAC implementation of fractionalorder lead/lag compensators," Novel Intelligent and Leading Emerging Sciences Conference (NILES), pp. 3841, Cairo, Egypt, 2019. A. AboBakr, M. Mohsen, L. A. Said, A. H. Madian, A. S. Elwakil and A. G. Radwan, "Banana ripening and corresponding variations in bioimpedance and glucose levels," Novel Intelligent and Leading Emerging Sciences Conference (NILES), pp. 130133, Cairo, Egypt, 2019. P. Bertsias, G. Tsirimokou, C. Psychalinos and A. S. Elwakil, "Fully electronically tunable inverse fractionalorder filter designs," Novel Intelligent and Leading Emerging Sciences Conference (NILES), pp. 4245, Cairo, Egypt, 2019. M. B. Elamien, B. J. Maundy, L. Belostotski and A. S. Elwakil, "An ultralow power wideband singletransistor secondorder allpass filter in 65nm CMOS," IEEE 62nd Int. Midwest Symposium on Circuits and Systems (MWSCAS), pp. 373376, 2019. A. AboBakr, M. Mohsen, L. A. Said, A. H. Madian, A. S. Elwakil and A. G. Radwan, "Towards portable bioimpedance devices," 4th Int. Conference on Advances in Computational Tools for Engineering Applications (ACTEA), 2019. M. A. Mousa, A. AboBakr, L. A. Said, A. H. Madian, A. S. Elwakil and A. G. Radwan, "Heating and freezing injury to plant tissues and their effect on bioimpedance: Experimental study," 4th Int. Conference on Advances in Computational Tools for Engineering Applications (ACTEA), 2019. H. Orabi, M. Elnawawy, A. Sagahyroon, F. Aloul, A. S. Elwakil, A. G. Radwan, "On the Implementation of a Rotated Chaotic Lorenz System on FPGA," IEEE Asia Pacific Conference on Circuits and Systems (APCCAS), pp. 417422, 2019.
