Results 91 to 100 of about 3,089 (261)

Review of Gastrointestinal Capsule Robots: Materials, Actuation, Diagnostics, and Therapeutics

open access: yesAdvanced Science, EarlyView.
This review examines gastrointestinal capsule robots through a systems engineering lens, covering shell materials, actuation and localization strategies, diagnostic modalities, therapeutic interventions, and commercialization status. By mapping the complete technological chain from fabrication to clinical deployment, this work identifies critical gaps ...
Zengsheng Li   +8 more
wiley   +1 more source

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

EndoTac: An Endoscopic Camera‐Based Tactile Sensor with High Sensitivity for Minimally Invasive Surgery

open access: yesAdvanced Science, EarlyView.
EndoTac presents a trocar‐compatible endoscopic vision‐based tactile sensor that uses a convex mirror to enlarge side‐facing tactile coverage during minimally invasive vessel palpation. Distorted tactile images are unwarped and processed by a learning model to estimate vascular deformation, enabling sensitive, spatially distributed tactile perception ...
Yupeng Wang   +5 more
wiley   +1 more source

超越离合器鼓形滚柱的优化设计

open access: yesJixie chuandong, 2013
The cylindrical roller used in the overrunning clutch is taken as research object.Aiming at the effect of edge stress produced by the contact between roller and roller way,it is proposed to adopt drum roller during the design of roller to reduce the edge
李志杰, 石光林, 温全明
doaj  

Dynamic simulation of cylindrical roller bearings

open access: yes, 2014
In this work, a three-dimensional dynamic simulation model for cylindrical roller bearings is developed based on multi-body-simulation software SIMPACK and programming language FORTRAN. The aim of this work is to build a universal program to calculate the dynamic behavior of cylindrical roller bearings.
openaire   +2 more sources

Heat‐Suppressing Projection Two‐Photon Lithography Enables High‐Throughput Sub‐Micrometer Manufacturing of Biopolymer Hydrogels for Tissue Engineering

open access: yesAdvanced Science, EarlyView.
The iLEAP technique integrates high‐throughput two‐photon lithography with extrusion printing, bridging sub‐micrometer precision and macroscopic scaffold fabrication. By employing a low‐exothermic photoinitiator, it mitigates thermal damage to biopolymers and preserves bioactivity.
Qifeng Guan   +11 more
wiley   +1 more source

Chiral Morphing of Liquid Crystal Polymer Networks

open access: yesAdvanced Science, EarlyView.
This paper reviews how macroscopic chirality spontaneously arises from liquid crystal polymer materials. It describes how alignment is utilized to create the mechanical anisotropy, geometric misorientation and asymmetry that leads to chiral shape morphing, how shape selection between helicoids and helices arises, the techniques used to prepare these ...
Laurens T. de Haan
wiley   +1 more source

Effects of Misalignment in Cylindrical Roller Bearings on Contact between Roller and Inner Ring

open access: yesIOSR Journal of Engineering, 2013
Misalignment of roller has remarkable effects on the life span of bearings. Taking a cylindrical roller bearing N1015 as a research object, the contact stress between the roller and the raceway is studied by means of ANSYS in order to determine reasonably the angle of misalignment of roller.
openaire   +1 more source

3D Printed Meter‐Scale Soft Origami Robots Capable of Load‐Bearing Actuation Via Crease Stiffness Modulation

open access: yesAdvanced Science, EarlyView.
Origami has inspired numerous soft deployable mechanisms for safe human‐robot interaction, while its intrinsic kinematic instability at arbitrary configurations limited their practical robotic application. This work presents a 3D printed meter‐scale origami robotic actuator capable of load‐bearing deformation through creaseline stiffness modulation.
Sung Yol Yu   +5 more
wiley   +1 more source

Squealing of cylindrical roller bearing.

open access: yesJSME international journal. Ser. 3, Vibration, control engineering, engineering for industry, 1991
NAKAI, Mikio   +3 more
openaire   +2 more sources

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