Results 151 to 160 of about 173,346,329 (296)

From Folding Mechanics to Robotic Function: A Unified Modeling Framework for Compliant Origami

open access: yesAdvanced Science, EarlyView.
A geometry‐consistent DDG framework captures compliant origami deformation from rigid‐like folding to soft panel bending. By tuning crease and panel stiffness, bistable snap‐through responses transform into smooth monostable deformation, enabling programmable stability and robot‐scale locomotion.
Bohan Zhang   +7 more
wiley   +1 more source

INVESTIGATION ON STATIC FRICTION COEFFICIENT OF A DOUBLE CURVED SURFACE SLIDER

open access: yes
This paper aims to address the variation in static friction coefficient of a double curved surface slider (DCSS) due to low temperature exposure. Accordingly, a DCSS was subjected to displacement controlled cyclic motions in which various normal stresses
E. Cavdar   +3 more
core  

Stochastic Entanglement of Deterministic Origami Tentacles For Robust Robotic Grasping

open access: yesAdvanced Science, EarlyView.
This study introduces an origami tentacle gripper to robustly grasp objects‐in air, underwater, and even in orbital space‐by exploiting a synergy between local, deterministic deformation programming and global, stochastic entanglements. A single origami tentacle can be designed to coil with a simple tendon pull.
Alec Boron   +4 more
wiley   +1 more source

Coefficient Friction Tester

open access: yes
Static and kinetic coefficients of frictionStandard: ASTM D1894, ISO8295, GB10006, etc.Material Testing e-bookinghttps://www.polyu.edu.hk/ic/research-and-project-support/list-of-facilities/scn/coefficient-frictiontester/EquipmentIndustrial ...

core  

On-Limb Orbiting Robot: Proprioceptive Diameter Estimation and Orthogonal Grip-Orbit Control. [PDF]

open access: yesBiomimetics (Basel)
Tobar-Subía-Contento LM   +3 more
europepmc   +1 more source

The Natural Product Corramycin Acts as a DNA Gyrase Poison and Overcomes Fluoroquinolone Resistance in Mycobacterium tuberculosis

open access: yesAdvanced Science, EarlyView.
Corramycin, a myxobacterial natural product antibiotic, exhibits potent bactericidal activity against multidrug‐resistant Mycobacterium tuberculosis. The compound hijacks bacterial transporters such as BacA and OppABCD to enter the cell and inhibits DNA synthesis through a previously unrecognized mode of DNA gyrase poisoning, locking the enzyme in an ...
Franziska Fries   +25 more
wiley   +1 more source

The impact of surface effects on hydraulic motor startup friction and the coefficient of static friction

open access: yes, 2012
A theoretical and experimental approach was used to perform a systematic analysis to find the optimal parameters of a textured surface for the purpose of reducing the coefficient of static friction.
Brandt, Daniel S
core  

Observation of stick-slip behavior with structural superlubric characteristics. [PDF]

open access: yesNat Commun
Chen W   +7 more
europepmc   +1 more source

Performance Estimation and Ex Vivo Validation of Untethered Magnetic Robots in Soft Tissue

open access: yesAdvanced Science, EarlyView.
This study presents an empirical model that quantitatively predicts the step‐out frequency of screw‐type untethered magnetic robots (UMRs) in soft viscoelastic environments, including ex vivo brain tissue. By integrating key parameters into a dimensionless framework, the model enables estimation of robot performance across a range of biological ...
Leendert‐Jan W. Ligtenberg   +19 more
wiley   +1 more source

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