Results 81 to 90 of about 38,638 (306)
On Finite-Time Anti-Saturated Proximity Control with a Tumbling Non-Cooperative Space Target
Space: Science & Technology, 2023 For the challenging problem that a spacecraft approaches a tumbling target with non-cooperative maneuver, an anti-saturated proximity control method is proposed in this paper. First, a brand-new appointed-time convergent performance function is developed
Caisheng Wei +4 more
doaj +1 more source
Voltage-induced strain control of the magnetic anisotropy in a Ni thin film on flexible substrate
, 2013 Voltage-induced magnetic anisotropy has been quantitatively studied in polycrystalline Ni thin film deposited on flexible substrate using microstrip ferromagnetic resonance.
Belmeguenai, Mohamed +4 more
core +2 more sources
Continuous phase amplification with a Sagnac interferometer [PDF]
, 2009 We describe a weak value inspired phase amplification technique in a Sagnac interferometer. We monitor the relative phase between two paths of a slightly misaligned interferometer by measuring the average position of a split-Gaussian mode in the dark ...
Dixon, P. Ben +4 more
core +3 more sources
Advanced Functional Materials, EarlyView.Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo +2 more
wiley +1 more source
IEEE Access, 2020 This paper investigates the impulsive synchronization scheme of fractional-order chaotic systems with actuator saturation and control gain error. Based on the theory of fractional order system and impulsive differential system, discontinuous Lyapunov ...
Tiedong Ma +3 more
doaj +1 more source
An Ultrasonic analog for a laser
, 2005 We report measurements on ultrasonic systems analogous to random lasers. One system entails unstable ultrasonic feedback between distinct transducers, another involves a piezoelectric device that emits spontaneously and by stimulation.
Lobkis, Oleg I +2 more
core +1 more source
Hysteresis-based design of dynamic reference trajectories to avoid saturation in controlled wind turbines [PDF]
, 2016 The main objective of this paper is to design a dynamic reference trajectory based on hysteresis to avoid saturation in controlled wind turbines. Basically, the torque controller and pitch controller set-points are hysteretically manipulated to avoid ...
Acho Zuppa, Leonardo +3 more
core +2 more sources
Advanced Functional Materials, EarlyView.An original method is presented for producing artificial spider silk fibers with magnetic and magnetomechanical responsiveness, which consists in coating them with a nanometer‐thick layer of FeCo alloy by sputtering deposition. The challenge of combining organic materials and inorganic magnetic nanostructures is addressed, thus taking a step forward ...
Filippo Lanaro +5 more
wiley +1 more source
IEEE Access, 2019 In this paper, an adaptive fault-tolerant control (FTC) strategy is proposed for a class of nonlinear systems in the presence of actuator fault, actuator saturation, and unknown external disturbance.
Moshu Qian, Zhong Zheng, Peng Cheng
doaj +1 more source
Dual‐Mode Magnetic Elastomer for On‐Demand Motion and Degradation
Advanced Functional Materials, EarlyView.A dual‐mode magnetic elastomer is introduced, enabling DC field‐driven programmable actuation and AC field‐driven magnetothermal degradation. GHz‐range magnetic fields generate ultrafast heating of magnetic nanoparticles that activates cleavage of the silicone elastomer matrix.
Jieun Han +13 more
wiley +1 more source