Results 31 to 40 of about 2,419,199 (329)

Generalized Super-Twisting Backstepping Sliding Mode Control for Electro-Hydraulic Servo Systems Considering the Coexistence of Matched and Mismatched Uncertainties

Applied Sciences, 2023
Aiming at the problem of the coexistence of matching and mismatching uncertainties in electro-hydraulic servo systems, disturbance observers and a backstepping sliding mode controller based on the generalized super-twisting algorithm (GSTA) are proposed ...
Qianyu Cao, Xiaoyu Su
doaj   +1 more source

Residual error-disturbance uncertainties in successive spin-1/2 measurements tested in matter-wave optics

, 2015
The indeterminacy inherent in quantum measurement is an outstanding character of quantum theory, which manifests itself typically in Heisenberg's error-disturbance uncertainty relation.
Demirel, Bülent, Hasegawa, Yuji, Ozawa, Masanao, Sponar, Stephan, Sulyok, Georg   +4 more
core   +2 more sources

GENERAL VIEWS OF PATIENTS WITH OLFACTORY DISTURBANCE

Nippon Jibiinkoka Gakkai Kaiho, 1962
On 145 cases which complained chiefly of the olfactory disturbance, general obseruation was carried.The following are the results:1) There can be found a clinical significance only in the severe olfactory disturbance.2) Common cold and inflammation of the upper respiratory tract excite often a cause of olfactory disturbance.3) Patients with hypotension
M. ICHIHARA, T. MIYAO, A. KOMATSU, T. KAMIO, K. TAIRA, K. SHIRAKURA, Y. SAKUMA, F. ICHIHARA, H. ASAKA, S. NAKASHIMA, H. SHIOKAWA, R. ODA   +11 more
openaire   +3 more sources

Generalized proportional integral observer–based composite control method for robotic thermal tactile sensor with disturbances

International Journal of Advanced Robotic Systems, 2017
In this article, we discuss the temperature regulation problem of robotic thermal tactile system under unknown time-varying disturbances. In order to improve the disturbance rejection property of the thermal system, a composite controller is presented ...
Congyan Chen, Yanduo Wang, Shihua Li
doaj   +1 more source

Universal Uncertainty Principle in the Measurement Operator Formalism

, 2005
Heisenberg's uncertainty principle has been understood to set a limitation on measurements; however, the long-standing mathematical formulation established by Heisenberg, Kennard, and Robertson does not allow such an interpretation.
Arthurs E, Braginsky V B, Masanao Ozawa, Nakano H, Nielsen M A, Ozawa M, Ozawa M, Ozawa M, Ozawa M, Schrödinger E, von Neumann J, von Neumann J   +11 more
core   +1 more source

Estimates for practical quantum cryptography [PDF]

, 1999
In this article I present a protocol for quantum cryptography which is secure against attacks on individual signals. It is based on the Bennett-Brassard protocol of 1984 (BB84). The security proof is complete as far as the use of single photons as signal
B. Huttner, B. Huttner, B. Slutsky, B. Slutsky, B. Yurke, C. A. Fuchs, C. Cachin, C. H. Bennett, C. H. Bennett, C. K. Law, C. Marand, E. B. Davies, H. P. Yuen, H. Zbinden, J. D. Franson, K. Kraus, M. N. Wegman, N. Lütkenhaus, N. Lütkenhaus, Norbert Lütkenhaus, W. Hoeffding, W. T. Buttler   +21 more
core   +2 more sources

Generalized 𝑆(𝐶,𝐴,𝐵)-Pairs for Uncertain Linear Infinite-Dimensional Systems

Journal of Applied Mathematics, 2009
We introduce the concept of generalized 𝑆(𝐶,𝐴,𝐵)-pairs which is related to generalized 𝑆(𝐴,𝐵)-invariant subspaces and generalized 𝑆(𝐶,𝐴)-invariant subspaces for infinite-dimensional systems.
Naohisa Otsuka, Haruo Hinata
doaj   +1 more source

Cross-lagged relationship between anxiety, depression, and sleep disturbance among college students during and after collective isolation

Frontiers in Public Health, 2022
ObjectRepeated quarantine policies over the past 3 years have led to poor psychological consequences for the public. Previous studies have proved that the quarantine policy leaves individuals vulnerable to anxiety, depression, and insomnia, especially ...
Congying Shi, Shujian Wang, Shujian Wang, Qihui Tang, Qihui Tang, Xiangping Liu, Xiangping Liu, Yue Li   +7 more
doaj   +1 more source

Robust position control of a tilt-wing quadrotor [PDF]

, 2010
This paper presents a robust position controller for a tilt-wing quadrotor to track desired trajectories under external wind and aerodynamic disturbances.
Cetinsoy, Ertugrul, Hancer, Cevdet, Hançer, Cevdet, Oner, Kaan Taha, Sirimoglu, Efe, Sırımoğlu, Efe, Unel, Mustafa, Çetinsoy, Ertuğrul, Öner, Kaan Taha, Ünel, Mustafa   +9 more
core   +1 more source

Speed Control of Permanent Magnet DC Motor with Friction and Measurement Noise Using Novel Nonlinear Extended State Observer-Based Anti-Disturbance Control

Energies, 2019
In this paper, a novel finite-time nonlinear extended state observer (NLESO) is proposed and employed in active disturbance rejection control (ADRC) to stabilize a nonlinear system against system’s uncertainties and discontinuous disturbances using
Amjad J. Humaidi, Ibraheem Kasim Ibraheem   +1 more
doaj   +1 more source