Results 91 to 100 of about 145,123 (305)

Analysis of the wrench-closure workspace of planar parallel cable-driven mechanisms

open access: yesIEEE Transactions on Robotics, 2006
The mobile platform of a parallel cable-driven mechanism is connected in parallel to a base by lightweight links, such as cables. Since the cables can only work in tension, the set of poses of the mobile platform for which the cables can balance any external wrench, i.e., for which the platform of the mechanism is fully constrained, is often limited or
Gouttefarde, Marc, Gosselin, Clément M.
openaire   +2 more sources

Stabilization of Miscible Aqueous Phases via Diffusion‐Controlled Multifunctional Nanoparticle‐Ligand Complexation

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a versatile approach to harnessing miscible aqueous domains, enabling liquid‐in‐liquid compartmentalization using a barrier formed in situ rather than bulk immiscibility. The barrier forms upon the complexation of multifunctional nanoparticles and ligands at the contact boundary of aqueous phases.
Seyyed Alireza Hashemi   +7 more
wiley   +1 more source

Study on the Position Solution and Workspace of the Flexible Coupling Parallel Robot with Three Degree of Freedom

open access: yesJixie chuandong, 2017
In order to overcome such shortcomings as great inertia and small workingspace existing in parallel mechanism,the flexible cable is adopted as the traction element of parallel mechanism to take place of connecting rods.
Ma Yao   +5 more
doaj  

Inclined Surface Locomotion Strategies for Spherical Tensegrity Robots

open access: yes, 2017
This paper presents a new teleoperated spherical tensegrity robot capable of performing locomotion on steep inclined surfaces. With a novel control scheme centered around the simultaneous actuation of multiple cables, the robot demonstrates robust ...
Agogino, Adrian K.   +10 more
core   +1 more source

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

open access: yesAdvanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky   +3 more
wiley   +1 more source

Television simulation for aircraft and space flight Patent [PDF]

open access: yes, 1969
Television simulation for aircraft and space ...
Conant, J. E.
core   +1 more source

Analysis and design of cable-driven parallel kinematic mechanisms [PDF]

open access: yes, 2019
This thesis concerns the analysis and design of cable-driven parallel mechanisms (CDPM). Structurally, a CDPM is formed by replacing the supporting legs of a parallel mechanism with active cables. It has the advantages of simple mechanical structure, low moment of inertia, and high-speed motion. One distinctive characteristic of CDPMs is the unilateral
openaire   +2 more sources

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

open access: yesAdvanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

Research on the Novel Primary and Secondary Embedded Deployable Cage Mechanism

open access: yesJixie chuandong, 2020
Cage aquaculture is an important strategic direction for marine aquaculture. Aiming at the problems that the existing offshore cages are difficult to adjust the breeding areas adaptively to optimize the ecological environment and the difficulty in ...
Liu Ziyu   +7 more
doaj  

Borehole geological assessment [PDF]

open access: yes, 1979
A method and apparatus are discussed for performing geological assessments of a formation located along a borehole, and a boring tool that bores a pair of holes into the walls of the borehole and into the surrounding strata along with a pair of probes ...
Spuck, W. H., III
core   +1 more source

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