Zobrazeno 1 - 10
of 4 317
pro vyhledávání: '"Valavanis A"'
This research presents a novel, analytical, Koopman Operator based formulation for position and attitude dynamics which can be used to derive control strategies for underactuated systems. Compared to data driven Koopman based techniques, the analytic
Externí odkaz:
http://arxiv.org/abs/2407.16100
Autor:
Sun, Yanwen, Chen, Chaobo, Albert, Thies J., Li, Haoyuan, Arefev, Mikhail I., Chen, Ying, Dunne, Mike, Glownia, James M., Hoffmann, Matthias, Hurley, Matthew J., Mo, Mianzhen, Nguyen, Quynh L., Sato, Takahiro, Song, Sanghoon, Sun, Peihao, Sutton, Mark, Teitelbaum, Samuel, Valavanis, Antonios S., Wang, Nan, Zhu, Diling, Zhigilei, Leonid V., Sokolowski-Tinten, Klaus
Femtosecond laser ablation is a process that bears both fundamental physics interest and has wide industrial applications. For decades, the lack of probes on the relevant time and length scales has prevented access to the highly nonequilibrium phase
Externí odkaz:
http://arxiv.org/abs/2407.10505
Autor:
Holstein, Jakob, North, Nicholas K., Horbury, Michael D., Kondawar, Sanchit, Kundu, Imon, Salih, Mohammed, Krysl, Anastasiya, Li, Lianhe, Linfield, Edmund H., Freeman, Joshua R., Valavanis, Alexander, Lisauskas, Alvydas, Roskos, Hartmut G.
Monolithically integrated, antenna-coupled field-effect transistors (TeraFETs) are rapid and sensitive detectors for the terahertz range (0.3-10~THz) that can operate at room temperature. We conducted experimental characterizations of a single patch-
Externí odkaz:
http://arxiv.org/abs/2404.07309
Publikováno v:
MDPI Drones 2024
This survey paper focuses on quadrotor- and multirotor- based cooperative aerial manipulation. Emphasis is first given on comparing and evaluating prototype systems that have been implemented and tested in real-time in diverse application environment
Externí odkaz:
http://arxiv.org/abs/2403.14347
Autor:
Papadakis, I. E., Binas-Valavanis, V.
Publikováno v:
A&A 685, A50 (2024)
We study the X-ray power spectrum of Active Galactic Nuclei (AGN) to investigate whether Seyfert I and II power spectra are similar or not, whether the AGN variability depends on black hole mass and accretion rate, and to compare the AGN power spectr
Externí odkaz:
http://arxiv.org/abs/2402.15373
Multirotor UAVs are used for a wide spectrum of civilian and public domain applications. Navigation controllers endowed with different attributes and onboard sensor suites enable multirotor autonomous or semi-autonomous, safe flight, operation, and f
Externí odkaz:
http://arxiv.org/abs/2402.04418
Autor:
Martini, Simone, Valavanis, Kimon P., Stefanovic, Margareta, Rutherford, Matthew J., Rizzo, Alessandro
This technical note proves analytically how the exact equivalence of the Newton-Euler and Euler-Lagrange modeling formulations as applied to multirotor UAVs is achieved. This is done by deriving a revised Euler-Lagrange multirotor attitude dynamics m
Externí odkaz:
http://arxiv.org/abs/2310.09306
Autor:
Dunn, Aniela, Zhang, Zhaopeng, Horbury, Michael D., Nuttall, Eleanor V., Han, Yingjun, Salih, Mohammed, Li, Lianhe, Bond, Abigail, Saleh, Ehab, Harris, Russell, Pardo, Diego, Ellison, Brian N., Burnett, Andrew D., Gleeson, Helen F., Valavanis, Alexander
Liquid-crystal devices (LCDs) offer a potential route toward adaptive optical components for use in the < 2 THz band of the electromagnetic spectrum. We demonstrate LCDs using a commercially available material (E7), with unbiased birefringence values
Externí odkaz:
http://arxiv.org/abs/2306.07665
Publikováno v:
Drones, Vol 8, Iss 5, p 196 (2024)
This review paper focuses on quadrotor- and multirotor-based cooperative aerial manipulation. Emphasis is first given to comparing and evaluating prototype systems that have been implemented and tested in real-time in diverse application environments
Externí odkaz:
https://doaj.org/article/b80eefee28534319b818845543ee529c
Publikováno v:
ACS Measurement Science Au, Vol 3, Iss 5, Pp 361-370 (2023)
Externí odkaz:
https://doaj.org/article/d10ac846e7d342d0b4601cb00ccb5fae