Results 31 to 40 of about 33,423 (302)
An algebraic method to check the singularity-free paths for parallel robots [PDF]
, 2015 Trajectory planning is a critical step while programming the parallel manipulators in a robotic cell. The main problem arises when there exists a singular configuration between the two poses of the end-effectors while discretizing the path with a ...
Chablat, Damien +3 more
core +4 more sources
Full Forward Kinematics of Lower-Mobility Planar Parallel Continuum Robots
MathematicsIn rigid lower-mobility parallel manipulators the motion of the end-effector is partially constrained due to a combination of passive kinematic pairs and rigid components.
Oscar Altuzarra +3 more
doaj +1 more source
ANALYSIS AND SYNTHESIS OF PARALLEL MANIPULATORS [PDF]
Fiabilitate şi Durabilitate, 2018 Paper presents a new way of the structural - topological analysis for the parallel manipulators, with referring to the calculation of mobility (degree of freedom) of complex mechanisms.
Constantin BREZEANU +2 more
doaj
International Journal of Advanced Robotic Systems, 2012 This paper addresses the problem of identifying the property of the singularity loci of a class of 3/6-Gough-Stewart manipulators for general orientations in which the moving platform is an equilateral triangle and the base is a semiregular hexagon ...
Hui Zhou +5 more
doaj +1 more source
Pa2 kinematic bond in translational parallel manipulators [PDF]
Mechanical Sciences, 2018 The Pa2 pair is composed of two intertwined articulated parallelograms connecting in parallel two links of a kinematic chain. This pair has two translational degrees of freedom leading to a translational plane variable with the position.
A. Hernández +4 more
doaj +1 more source
An Algorithm for Computing Cusp Points in the Joint Space of 3-RPR Parallel Manipulators [PDF]
, 2006 This paper presents an algorithm for detecting and computing the cusp points in the joint space of 3-RPR planar parallel manipulators. In manipulator kinematics, cusp points are special points, which appear on the singular curves of the manipulators. The
Chablat, Damien +2 more
core +2 more sources
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
Study of error modeling in kinematic calibration of parallel manipulators
International Journal of Advanced Robotic Systems, 2016 Error modeling is the foundation of a kinematic calibration which is a main approach to assure the accuracy of parallel manipulators. This article investigates the influence of error model on the kinematic calibration of parallel manipulators.
Liping Wang +4 more
doaj +1 more source
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