Results 171 to 180 of about 2,289,829 (359)

Three-dimensional finite element analysis of acoustic instability of solid propellant rocket motors [PDF]

open access: yes
A three dimensional finite element solution of the acoustic vibration problem in a solid propellant rocket motor is presented. The solution yields the natural circular frequencies of vibration and the corresponding acoustic pressure mode shapes ...
Hackett, R. M., Juruf, R. S.
core   +1 more source

Magnetic Field Driven Microrobot Based on Hydrogels

open access: yesAdvanced Robotics Research, EarlyView.
Hydrogel‐based magnetic microrobots synergize remote magnetic control with the biocompatibility of flexible hydrogels, emerging as promising tools for minimally invasive biomedicine. This enables remotely controllable, untethered navigation within complex biological microenvironments.
Juncai Song, Yubing Guo
wiley   +1 more source

High energy propellants - A continuing bibliography with indexes [PDF]

open access: yes
Bibliography on solid, liquid, and hybrid high energy propellants and oxidizers, propellant handling and storage, toxicity and hazards, and safety ...

core   +1 more source

Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots

open access: yesAdvanced Robotics Research, EarlyView.
Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley   +1 more source

Design and Manufacturing of Experimental Solid Propellant Rocket Motor Cases Made of Carbon Composite Materials. [PDF]

open access: yesPolymers (Basel)
Baiserikov B   +7 more
europepmc   +1 more source

Multidirectional Motion Strategy of Miniature Water Surface Robot Actuated by Single Exciter

open access: yesAdvanced Robotics Research, EarlyView.
A novel multidirectional motion strategy on the water surface based on a single exciter is proposed, and a single‐exciter single‐plate module is developed for actuation. The driving forces generation mechanism of the module is revealed from the perspective of the asymmetric surface wave field.
Haoxuan He   +4 more
wiley   +1 more source

Rheological and Mechanical Characterization of 3D-Printable Solid Propellant Slurry. [PDF]

open access: yesPolymers (Basel)
Zumbo A   +7 more
europepmc   +1 more source

Saturated hydrocarbon polymeric binder for advanced solid propellant and hybrid solid grains Quarterly report no. 3, 1 May - 31 Jul. 1966 [PDF]

open access: yes
Saturated hydrocarbon polymeric binder for advanced solid propellant and hybrid solid ...
Ashcraft, A. C., Jr.   +3 more
core   +1 more source

TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms

open access: yesAdvanced Robotics Research, EarlyView.
A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello   +7 more
wiley   +1 more source

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