Results 141 to 150 of about 26,545 (305)
Multidirectional Motion Strategy of Miniature Water Surface Robot Actuated by Single Exciter
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
Nonlinear combustion instability in liquid-propellant rocket motors Final report [PDF]
Mathematical models of nonlinear combustion instabilities in liquid propellant rocket ...
Burstein, S. Z. +2 more
core +1 more source
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska +2 more
wiley +1 more source
The prediction of the nonlinear behavior of unstable liquid rockets [PDF]
Analytical technique for solving nonlinear combustion problems associated with liquid propellant rocket ...
Powell, E. A., Zinn, B. T.
core +1 more source
Echinoderm‐Inspired Autonomy for Soft‐Legged Robots
Inspired by echinoderms, a modular soft robot achieves autonomous phototaxis without a central controller or explicit communication. Each limb independently adapts its actuation timing through local sensing and short‐term memory. Coordination emerges purely from physical interactions, demonstrating resilience to changes in morphology, environment, and ...
Harmannus A. H. Schomaker +2 more
wiley +1 more source
Theoretical investigation on transverse mode combustion instability for liquid propellant rockets [PDF]
Mathematical solution of nonlinear transverse combustion instability problems in thin annular liquid propellant rocket ...
Crocco, L., Lorenzetto, J. H.
core +1 more source
Autonomous Locomotion of Tensegrity Structure on Low‐Temperature Surfaces
A low‐temperature responsive tensegrity structure (LRTS) is constructed by integrating low‐responsive temperature liquid crystal elastomer (LCE) cables, nonresponsive cables, and stiff rods. The low phase transition temperature of LCE is achieved by introducing a new liquid crystal mesogen.
Changyue Liu +5 more
wiley +1 more source
The search for a smokeless propellant has encouraged scientists and engineers to look for a chlorine-free oxidizer as a substitute for AP (ammonium perchlorate).
Márcio Y. Nagamachi +3 more
doaj
Photographic study of propellant outflow from a cylindrical tank during weightlessness [PDF]
Photographic study of liquid propellant behavior in pumping from cylindrical tank during ...
Derdul, J. D. +2 more
core +1 more source
Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract
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

