Results 1 to 10 of about 22,550 (181)

Kinesin's backsteps under mechanical load [PDF]

Physical Chemistry Chemical Physics, 2009
Kinesins move processively toward the plus end of microtubules by hydrolyzing ATP for each step. From an enzymatic perspective, the mechanism of mechanical motion coupled to the nucleotide chemistry is often well explained using a single-loop cyclic ...
Alberty, Alonso, Asbury, Baker, Beeg, Bell, Block, Block, Block, Brady, Brant, Carter, Changbong Hyeon, Chemla, Coppin, Coppin, Cross, Cross, Fisher, Fisher, Gelles, Gilbert, Gross, Guydosh, Hackney, Hackney, Howard, Hunt, Hyeon, Hyeon, Itoh, José N. Onuchic, Kawaguchi, Klumpp, Kojima, Kolomeisky, Liepelt, Liphardt, Lipowsky, Ma, Meyhofer, Mickler, Mori, Moyer, Muller, Nishiyama, Nishiyama, Oster, Qian, Qu, Reimann, Rice, Rice, Ross, Russell, Schief, Schief, Schnitzer, Schnitzer, Stefan Klumpp, Svoboda, Taniguchi, Thirumalai, Tsygankov, Uemura, Uemura, Vale, Vale, Visscher, Wu, Yildiz, Yildiz   +71 more
core   +3 more sources

Adaptive Fuzzy Fixed-Time Trajectory Tracking Control for a Piezoelectric-Driven Microinjector [PDF]

Micromachines
This paper proposes an adaptive fuzzy fixed-time control (AF-FxT-C) scheme for a piezoelectric-driven microinjector. The inherent hysteresis of the piezoelectric actuator is treated as an unknown nonlinearity.
Rungeng Zhang, Zehao Wu, Weijian Zhang, Qingsong Xu   +3 more
doaj   +2 more sources

Tracking Control for Asymmetric Underactuated Sea Vehicles in Slow Horizontal Movement [PDF]

Sensors
In this paper, a robust tracking control problem for underactuated underwater vehicles in horizontal motion is investigated. The presented control scheme that performs the trajectory tracking task is a combination of the backstepping technique and the ...
Przemyslaw Herman
doaj   +2 more sources

Adaptive backstepping controller design of quadrotor biplane for payload delivery

IET Intelligent Transport Systems, 2022
Performance of the UAVs for a particular application can be enhanced by hybrid design, where take‐off, hover, and landing happen like rotary‐wing UAVs, and flies like fixed‐wing UAVs.
Nihal Dalwadi, Dipankar Deb, S. M. Muyeen   +2 more
doaj   +1 more source

Adaptive Output Feedback Control for Nonholonomic Chained Systems with Integral Input State Stability Inverse Dynamics

Sensors, 2023
This paper investigates a class of nonholonomic chained systems with integral input-to-state stable (iISS) inverse dynamics subject to unknown virtual control directions and parameter uncertainty included in drift terms. First, the system is divided into
Yang Li, Linxing Xu, Xiuli Wang, Cunsong Wang   +3 more
doaj   +1 more source

Backstepping Mechanism of Kinesin-1 [PDF]

Biophysical Journal, 2019
AbstractKinesin-1 is an ATP-driven molecular motor that transports cellular cargo along microtubules. At low loads, kinesin-1 almost always steps forwards, towards microtubule plus ends, but at higher loads, it can also step backwards. Backsteps are usually 8 nm, but can be larger. These larger backwards events of 16 nm, 24 nm or more are thought to be
Algirdas Toleikis, Nicholas J. Carter, Robert A. Cross   +2 more
openaire   +5 more sources

Adaptive neural network control for nonlinear non-strict feedback time-delay systems

Systems Science & Control Engineering, 2021
This paper focuses on adaptive neural control for a class of non-strict feedback nonlinear systems with state delays and input delay. By combining integral transformation with adaptive neural control approach, a backstepping-based adaptive neural control
Yuanyuan Xu, Bing Chen
doaj   +1 more source

Robust Neural Tracking Controller Design for a Class of Discrete-Time Nonlinear Systems Under Arbitrary Switching

IEEE Access, 2021
In this article, the problem of robust tracking control is investigated for a class of discrete-time switched nonlinear uncertain system in strict-feedback form, and a novel robust neural tracking control scheme through backstepping technique is proposed
Yanjun Shu, Yanhui Tong
doaj   +1 more source

Relaxed and Hybridized Backstepping [PDF]

IEEE Transactions on Automatic Control, 2013
In the present work, we consider nonlinear control systems for which there exist structural obstacles to the design of classical continuous backstepping feedback laws. We conceive feedback laws such that the origin of the closed-loop system is not globally asymptotically stable but a suitable attractor (strictly containing the origin) is practically ...
Stein Shiromoto, Humberto, Andrieu, Vincent, Prieur, Christophe   +2 more
openaire   +3 more sources

Tutorial on nonlinear backstepping: Applications to ship control [PDF]

Modeling, Identification and Control, 1999
The theoretical foundation of nonlinear backstepping designs is presented in a tutorial setting. This includes a brief review of integral backstepping, extensions to SISO and MIMO systems in strict feedback form and physical motivated case studies ...
Thor I. Fossen, Jan P. Strand
doaj   +1 more source