On the determination of cusp points of 3-R\underline{P}R parallel manipulators [PDF]
, 2010 This paper investigates the cuspidal configurations of 3-RPR parallel manipulators that may appear on their singular surfaces in the joint space. Cusp points play an important role in the kinematic behavior of parallel manipulators since they make ...
Chablat, Damien +3 more
core +5 more sources
Modelling and control of a 2-DOF planar parallel manipulator for semiconductor packaging systems [PDF]
, 2005 A novel direct-drive planar parallel manipulator for high-speed and high-precision semiconductor packaging systems is presented. High precision kinematics design, significant redaction on moving mass and driving power of the actuators over traditional XY
Cheung, JWF, Hung, YS
core +1 more source
A Fuzzy PID Approach for the Vibration Control of the FSPM
International Journal of Advanced Robotic Systems, 2013 This paper focuses on the vibration control issue of a Flexibly Supported Parallel Manipulator (FSPM), which consists of a flexible support and a rigid parallel manipulator. The distinct characteristic of an FSPM is the dynamic coupling between the rigid
Zhu-Feng Shao +3 more
doaj +1 more source
Dynamic Analysis and Trajectory Tracking Control for a Parallel Manipulator with Joint Friction
Applied Sciences, 2022 To overcome the bearing capacity deficiencies of traditional serial hip joint simulators, complex trajectory simulation, among others, as well as a parallel manipulator with two pairs of artificial hip joints and two moving platforms are proposed.
Shibiao Chen, Gang Cheng, Yusong Pang
doaj +1 more source
On the optimal design of parallel robots taking into account their deformations and natural frequencies [PDF]
, 2009 This paper discusses the utility of using simple stiffness and vibrations models, based on the Jacobian matrix of a manipulator and only the rigidity of the actuators, whenever its geometry is optimised. In many works, these simplified models are used to
Briot, Sébastien +2 more
core +4 more sources
A Spatial Six-Dof Parallel Manipulator with Redundant Actuators for Gross and Fine Motions
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2010 We presented a spatial parallel manipulator with redundant actuators for gross and fine motions to achieve fine positioning together with gross motion in three dimensional space.
Yukio TAKEDA, Kazuki ICHIKAWA, Wei GUO
doaj +1 more source
Multiscale Manipulations with Multiple Parallel Mechanism Manipulators [PDF]
, 2008 We have shown a dexterous micromanipulation system based on single-master and multislave device configuration and its deformable object micromanipulation such as styrene block and roe. The system enables 6 d.o.f. object position control using 2 parallel mechanism micromanipulators.
Hwang, Gilgueng, Hashimoto, Hideki
openaire +2 more sources
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Design and implemtation of a real-time adaptive learning algorithm controller for a 3-DOF parallel manipulator / Mustafa Jabbar Hayyawi [PDF]
, 2016 A parallel manipulator is a closed loop mechanism which consists of a moving platform that is connected to a fixed base by at least two kinematic chains in parallel.
Jabbar Hayyawi, Mustafa
core
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source