Results 101 to 110 of about 7,594 (251)

Design and Modeling of a High‐Displacement, Skin‐Integrated Flexible Electromagnetic Actuator for Haptic Interfaces in Virtual Reality

Advanced Robotics Research, EarlyView.
A flexible, skin‐integrated electromagnetic actuator is developed for wearable virtual/augmented reality (VR/AR) haptic systems. A tunable design model enables control over displacement and resonance frequency. The system is validated through a custom VR application with a 6 × 4 actuator array, demonstrating real‐time, spatially targeted tactile ...
Naji Tarabay, Alexandra Zhang Jiang, Ziteng Liu, Rachel Villamor, Derek Cha, Ananya Renuka Balakrishna, Tianshu Liu, Priyanshu Agarwal, Rainer Dömer, Camilo Velez   +9 more
wiley   +1 more source

Minimizing Scanning Errors in Piezoelectric Stack-Actuated Nanopositioning Platforms

IEEE Transactions on Nanotechnology, 2008
Piezoelectric stack-actuated parallel-kinematic nanopositioning platforms are widely used in nanopositioning applications. These platforms have a dominant first resonant mode at relatively low frequencies, typically in the hundreds of hertz. Furthermore, piezoelectric stacks used for actuation have inherent nonlinearities such as hysteresis and creep ...
Aphale, Sumeet S., Bhikkaji, Bharath, Moheimani, S. O. Reza   +2 more
openaire   +2 more sources

Soft Robotics and Advanced Technologies for Minimally Invasive Bioprinting: The Future of Internal Organ Repair

Advanced Science, EarlyView.
This review examines the evolution of bioprinting toward minimally invasive in situ strategies for internal organ regeneration. It defines the technological roadmap from handheld systems to advanced minimally invasive bioprinting platforms, positioning soft robotics as a core enabler.
Duc Tu Vu, Nhu An Phan, Sy Trung Ngo, Minh Tri Phan, Thanh‐An Truong, Chi Cong Nguyen, Phuoc Thien Phan, Hoang‐Phuong Phan, Thanh Nho Do, Mai Thanh Thai   +9 more
wiley   +1 more source

Focusing Mirror with Tunable Eccentricity

, 2013
We present a new kind of varifocal mirror with independently adjustable curvatures in the major directions. For actuation we use two stacked piezo bending actuators with crossed in-plane polarization.
Brunne, Jens, Stürmer, Moritz, Wallrabe, Ulrike, Wapler, Matthias C.   +3 more
core   +1 more source

A Metal‐Free Molecular Ferroelectric With Large Piezoelectricity and Its Porous Composite for Superior Output Power Density

Advanced Science, EarlyView.
Metal‐free molecular crystal [(CH3C6H10NH3)(18‐crown‐6)][ClO4] functions as a high‐performance molecular ferroelectric. Through strategic methylation of the cyclohexylamine unit, the compound achieves large spontaneous polarization and outstanding piezoelectric coefficients.
Nan Chen, Wenjuan Wei, Le Ye, Lingyu Wan, Yen Wei   +4 more
wiley   +1 more source

Motion Planning of a Stepping-Wriggle Type Piezoelectric Actuator Operating in Bending Modes

IEEE Access, 2016
A new non-resonant-type piezoelectric actuator with unlimited stroke was proposed, in which two transducers operated in hybrid bending modes were used to generate the desired displacements with micrometer scale. Compared with the PZT stack, both positive
Dongmei Xu, Yingxiang Liu, Junkao Liu, Shengjun Shi, Weishan Chen   +4 more
doaj   +1 more source

Mathematical modeling of a V-stack piezoelectric aileron actuation

INCAS BULLETIN, 2016
The article presents a mathematical modeling of aileron actuation that uses piezo V-shaped stacks. The aim of the actuation is the increasing of flutter speed in the context of a control law, in order to widen the flight envelope. In this way the main advantage of such a piezo actuator, the bandwidth is exploited.
Ioan URSU, Dragos Daniel ION GUTA, Daniela ENCIU, Adrian TOADER, Mircea DAN1, Cristiana DONCIU, Vasile TURCAN   +6 more
openaire   +2 more sources

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

Advanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale, Marie Celine Lefevre, Alessio Carmignani, Maria Cristina Ceccarelli, Matteo Battaglini, Attilio Marino, Gianni Ciofani   +6 more
wiley   +1 more source

Piezoelectric devices for vibration suppression: Modeling and application to a truss structure [PDF]

For a space structure assembled from truss members, an effective way to control the structure may be to replace the regular truss elements by active members. The active members play the role of load carrying elements as well as actuators.
Belvin, W. Keith, Sparks, Dean W., Jr., Sulla, Jeff L., Won, Chin C.   +3 more
core   +1 more source

Emerging Molecular Antiferroelectrics: Advances and Prospects

Advanced Science, EarlyView.
This review focuses on the current research progress in emerging molecular antiferroelectrics, encompassing their diverse structures, antiferroelectricity‐associated properties, and application exploration, including energy storage, electrocaloric refrigeration, and electrostriction.
Xiaoqi Li, Qianxi Wang, Xiaoyu Zhang, Yating You, Zhihua Sun, Xitao Liu, Junhua Luo   +6 more
wiley   +1 more source