RYZHII Maxim V.
Senior Associate Professor
- Department of Computer Science and Engineering/Division of Computer Science
- Senior Associate Professor
- Courses - Undergraduate
- NS02 Electromagnetism (Lecture),
NS02 Electromagnetism (Exercises),
NS04 Semiconductor Devices,
NS05 Thermodynamics and Statistical Mechanics
- Courses - Graduate
- SYA06 Advanced Devices for Computer and Communication Systems
SYA07 Modeling of Advanced Semiconductor Devices
Electron device and electronic equipment
Life\, health and medical informatics
Physics and computer modeling of nanoelectronic devices, Biophysical modeling
- Educational Background, Biography
2019 Senior Associate Professor, University of Aizu
2003 Assistant/Associate Professor, University of Aizu
1998(03-09) Visiting Researcher, Chalmers University of Technology
1993 Research Associate, University of Aizu
2001 D.Eng., Tokyo Institute of Technology
1992 M.S., Moscow Institute of Physics and Technology
- Current Research Theme
- Theory and computer modeling: Graphene nanoelectronic devices, Detectors and generators of Terahertz radiation;
Modeling of cardiac electrical conduction system and ECG
- Key Topic
- Computer Modeling, Monte Carlo method, Nonlinear Systems, Oscillators
- Affiliated Academic Society
- IEEE Electron Devices Society (EDS, Senior Member), IEEE Engineering in Medicine and Biology Society (EMBS),
American Physical Society
- Skiing, Trekking, Swimming
- Live as if you were to die tomorrow. Learn as if you were to live forever.
- Messages for Students
- Always desire to learn something useful
- Computer modeling of cardiac electrical phenomena
Our team at the University of Aizu is studying the heart's electrical activity using a simple harmonic motion model of the heart. We are studying arrhythmia and chaos mechanisms in the heart. The non-linear dynamics model of our heart is capable of reproducing heart signaling system behavior for regular and irregular states. You can join us in possibly making many interesting discoveries as we study the heart's electrical activity using computer simulations.
Our model enables simulations of the workings of the heart's conducting system as oscillators linked mutually which include vibrating pacemaker cells and excitatory muscles.
We are researching the following topics:
- Different types of pacemaker cells and cardiac muscles;
- Cardiac disease;
- Artificial heart pacemakers;
- The impact of external stimuli on heartbeats
We are developing a system that incorporates a mounted FPGA (a heart-on-a-chip) that is quick for assessments, comparatively simple, and that can perform calculations efficiently, in closed-loop systems and software and hardware tests for pacemakers and defibrillators (ICDs) using this model.
Dissertation and Published Works
- M. Ryzhii and E. Ryzhii. "A compact multi-functional model of the rabbit atrioventricular node with dual pathways", Frontiers in Physiology, 14, 1126648, 2023.
- M. Ryzhii, V. Ryzhii, M.S. Shur, V. Mitin, C. Tang, T. Otsuji. "Terahertz bolometric detectors based on graphene field-effect transistors with the composite h-BN/black-P/h-BN gate layers using plasmonic resonances", J. of Applied Physics, 134, 084501,2023.
- M. Ryzhii, V. Ryzhii, T. Otsuji, V. Mitin, and M.S. Shur. "Coulomb drag and plasmonic effects in graphene field-effect transistors enable resonant terahertz detection", Applied Physics Letters, 120 (11), art. no. 111102, 2022.
- M. Ryzhii and E. Ryzhii. "Pacemaking function of two simplified cell models", PLoS ONE, 17 (4), art. no. e0257935, 2022.
- M.A. Quiroz-Juarez, O. Jimenez-Ramirez, R. Vazquez-Medina, E. Ryzhii, M. Ryzhii, and J.L. Aragón. "Cardiac conduction model for generating 12 lead ECG signals with realistic heart rate dynamics", IEEE Transactions on Nanobioscience, 17 (4), art. no. 8466837, pp. 525-532, 2018.
- M. Ryzhii, T. Otsuji, V. Ryzhii, V. Mitin, M.S. Shur, G. Fedorov, and V. Leiman. "Dynamic conductivity and two-dimensional plasmons in lateral CNT networks", Int. J. of High Speed Electronics and Systems, 26 (1-2), art. no. 1740004, 2017.
- M.A. Quiroz-Juárez, R. Vázquez-Medina, E. Ryzhii, M. Ryzhii, and J.L. Aragón. "Quasiperiodicity route to chaos in cardiac conduction model", Communications in Nonlinear Science and Numerical Simulation, 42, pp. 370-378, 2017.
- E. Ryzhii and M. Ryzhii. "A heterogeneous coupled oscillator model for simulation of ECG signals," Computer Methods and Programs in Biomedicine, 117(1), pp. 40-49, 2014.
- M. Ryzhii, V.Ryzhii, T. Otsuji, P.P. Maltsev, V.G. Leiman, N. Ryabova, and V. Mitin. "Double injection, resonant-tunneling recombination, and current-voltage characteristics in double-graphene-layer structures," Journal of Applied Physics, 115(2), 024506 (1-8), 2014.
- T. Otsuji, S. Boubanga Tombet, A. Satou, M. Ryzhii, and V. Ryzhii. "Terahertz-wave generation using graphene: Toward new types of terahertz lasers," IEEE J. of Selected Topics in Quantum Electronics, 19(1), 8400209(9), 2013.
- M. Ryzhii, T. Otsuji, V. Mitin, and V. Ryzhii. "Characteristics of p-i-n terahertz and infrared photodiodes based on multiple graphene layer structures," Japanese Journal of Applied Physics, 50, pp. 070117 (6), 2011.
- M. Ryzhii, V. Ryzhii, T. Otsuji, V.Mitin, and M.S. Shur. "Electrically induced n-i-p junctions in multiple graphene layer structures," Physical Review B, 82, 075419 1-6, 2010.
- M. Ryzhii and V. Ryzhii. "Physics and modeling of tera- and nano-devices," World Scientific Publishing Co Pte Ltd., Singapore, 2008.
- M. Ryzhii, V. Ryzhii, and M.S. Shur. "Effect of near-ballistic photoelectron transport on resonant plasma-assisted photomixing in high-electron mobility transistors," Semiconductor Science and Technology, 19(4), pp. S74-S76, 2004.
- M. Ryzhii and V. Ryzhii. "Monte Carlo modeling of transient recharging processes in quantum-well infrared photodetectors," IEEE Transactions on Electron Devices, 47(10), pp. 1935-1942, 2000.
- M. Ryzhii, M. Willander, I. Khmyrova, and V. Ryzhii. "Terahertz response of metal-semiconductor-metal photodetectors," Journal of Applied Physics, 84(11), pp. 6419-6425, 1998.