Results 111 to 120 of about 19,017 (290)

Magnetic Droplet Manipulation on Open Surfaces

open access: yesAdvanced Materials Technologies, EarlyView.
Recent advances in the manipulation of magnetic droplets demonstrate various manipulations on open surfaces, including transport, splitting, merging, and force‐controlled motion, enabled by magnetic particles and external fields. ABSTRACT Manipulation of liquids on a smaller scale enables applications in various fields, particularly diagnostics and ...
Robab Jahangir, Vahid Nasirimarekani
wiley   +1 more source

Transition from Boundary Lubrication to Hydrodynamic Lubrication of Slider Bearings

open access: yes, 2008
: The transition from boundary lubrication to fully hydrodynamic lubrication is investigated for air-lubricated slider bearings using the electrical resistance method. Intermittent contacts are shown to exist even under conditions for which the numerical
R. C. Tseng, F. E. Talke
core  

Ecological lubrication in cold forming of sintered powder metallurgical components [PDF]

open access: yes, 2018
In this contribution a new lubrication approach for cold bulk metal forming is presented. By exploiting the process-related porosity of pm components as a lubricant storage, the resulting pressure of a forming process forces the stored oil to leak out ...
Behrens, Bernd-Arno
core  

Inspired by spider silk to prepare biomimetic high-performance bovine serum albumin adhesive to strengthen the interfacial and tribological performance of fabric composites

open access: yesFriction
The interfacial adhesion between fibers and the resin matrix is considered to be one of the pivotal elements in determining the comprehensive properties of fabric composites.
Yaohui He   +8 more
doaj   +1 more source

Microstructural and component evolution of self-assembled nanoperiod multilayered carbon-copper films with deposition pressure

open access: yesAIP Advances, 2017
Here, we report a facile synthesis method for the fabrication of various nanoperiod multilayers in carbon-copper films only by conveniently changing the deposition pressure from the reactive magnetron sputter process.
Weiqi Wang   +5 more
doaj   +1 more source

Soft Robotic Excretory Care Simulator for Nursing Education: Functional and Perceptual Biomimetics Approach

open access: yesAdvanced Robotics Research, EarlyView.
A soft robotic simulator is developed to replicate the digital removal of feces (DRF), a sensitive yet essential nursing procedure. Integrating soft actuators, sensors, and a realistic rectal model, the simulator balances functional fidelity with perceptual realism. Engineering evaluations and nurse feedback confirm its potential to enhance training in
Shoko Miyagawa   +10 more
wiley   +1 more source

The research of non-Newtonian properties and rheology of thin lubricant layers in hydrodynamic journal bearings

open access: yes, 2013
The construction of rheological models of modern oils, reflecting the dependence of viscosity on temperature and pressure in a thin lubricating layer and the shear rate is of significant importance in calculating heavy-loaded bearings.
Zadorozhnaya E.
core  

Improving compatibility and tribological performance via supramolecular gelation of MoS2 nanoparticles in perfluoropolyether lubricants

open access: yesFriction
Perfluoropolyether (PFPE) oils pose challenges in terms of their compatibility with nanoparticle lubrication additives because of their unique molecular structure, limiting their lubrication performance enhancement.
Yanyan Bai   +8 more
doaj   +1 more source

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

open access: yesAdvanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino   +7 more
wiley   +1 more source

Joint contact modelling of articular cartilage in synovial joints [PDF]

open access: yes, 2010
Hip joint is one of the important load bearing joints and has been extensively studied to investigate contact mechanics and tribology. It has known to experience high contact forces and stresses.
ath Shrikant, Sainath Shrikant   +1 more
core  

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