Results 81 to 90 of about 337,376 (283)

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

open access: yesAdvanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis   +7 more
wiley   +1 more source

An investigation on the effects of rotating modes on the mixing efficiency of the twin-blade planetary mixer

open access: yesAdvances in Mechanical Engineering
Twin-blade planetary mixers are one of important production devices for energetic materials. In order to investigate the effects of different rotating modes on the mixing efficiency inside mixing vessel of the twin-blade planetary mixer, computational ...
Chunyan Wang, Jian Liang, Hua Huo
doaj   +1 more source

Dynamic Stability of Rotating Blades with Transverse Cracks

open access: yesShock and Vibration, 2003
In this paper, the main objective is to examine the effects of transverse cracks on the dynamic instability regions of an axially loaded rotating blade. The blade is modeled as an Euler-Bernoulli beam.
T.Y. Ng, K.Y. Lam, Hua Li
doaj   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi   +4 more
wiley   +1 more source

Effect of Wind Turbine Blade Rotation on Triggering Lightning: An Experimental Study

open access: yesEnergies, 2016
Compared with other lightning targets on the ground, the most notable feature of a wind turbine is that the blades are usually in a rotating state when lightning strikes.
Xishan Wen   +6 more
doaj   +1 more source

Rapid Extraction of Viral Nucleic Acids Using Rotating Blade Lysis and Magnetic Beads. [PDF]

open access: yesDiagnostics (Basel), 2022
Bae M   +7 more
europepmc   +1 more source

Blade row interaction in radial turbomachines [PDF]

open access: yes, 1999
A computational study has been performed to investigate the effects of blade row interaction on the performance of radial turbomachines, which was motivated by the need to improve our understanding of the blade row interaction phenomena for further ...
Sato, K., Sato, Kenji
core  

A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine

open access: yesAdvanced Robotics Research, EarlyView.
This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff   +4 more
wiley   +1 more source

Evolution of Rotating Internal Channel for Heat Transfer Enhancement in a Gas Turbine Blade

open access: yesAerospace
To achieve higher thermal efficiency in a gas turbine, increasing the turbine inlet temperature is necessary. The rotor blade at the first stage tolerates the highest temperature, and the serpentine internal channel located in the middle chord of the ...
Xinxin Guo, Xueying Li, Jing Ren
doaj   +1 more source

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