Results 91 to 100 of about 14,664 (299)

Hierarchical Structure and Fabrication of Functionally Graded Biointerfaces in the Mussel Byssus

Advanced Materials Interfaces, EarlyView.
The byssus is a fibrous protein‐based holdfast consisting of mechanically distinct interfaces, which mussels use to anchor their soft living tissue to hard seashore surfaces. Here, multiscale methodologies were used to elucidate the compositional and structural features underlying these functionally graded interfaces and how they are fabricated through
Lucia Youssef, Jenaes Sivasundarampillai, Sydney Mikulin, Franziska Jehle, Matthew J. Harrington   +4 more
wiley   +1 more source

Dynamic Current Routing in Conductive Liquid Crystal Elastomers for Complex Deformation Actuators

Advanced Materials Technologies, EarlyView.
This work introduces a novel actuation control strategy in which electrical stimulation generates localized Joule heating in conductive liquid crystal elastomer (LCE) surfaces, enabling complex 3D deformations from a single homogeneous surface without preprogramming.
Gloria PouWai Lei, Morgan Barnes, Thomas George Thuruthel   +2 more
wiley   +1 more source

Development of Green Bipropellant Thrusters and Engines Using 98% Hydrogen Peroxide as Oxidizer

Aerospace
The need for non-toxic chemical propulsion systems is growing stronger in today’s space sector. One of the possible solutions for next-generation bipropellant systems is using hydrogen peroxide as the oxidizer.
Adam Okninski, Pawel Surmacz, Kamil Sobczak, Wojciech Florczuk, Dawid Cieslinski, Aleksander Gorgeri, Bartosz Bartkowiak, Dominik Kublik, Michal Ranachowski, Zbigniew Gut, Adrian Parzybut, Anna Kasztankiewicz, Jacek Mazurek, Ferran Valencia Bel, Armin Herbertz, Kate Underhill, Dirk Schneider, Andreas Flock   +17 more
doaj   +1 more source

Advanced propellant management system for spacecraft propulsion systems. Phase 1 - Survey study and evaluation [PDF]

Apollo spacecraft propulsion system propellant ...
Balzar, D. L., Barksdale, T. R., Gilmore, D. E., Greene, F. P., Peterson, R. G.   +4 more
core   +1 more source

Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications

Advanced Materials Technologies, EarlyView.
Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke, Moses Kumi, Xiaoming Tao, Junhong Pu   +3 more
wiley   +1 more source

Effect of the distant position of a propellant valve on the startup delay of a “green”-propellant thruster

Technical mechanics
In recent years, the leading space countries have paid much attention to a search for and the application of new toxically safe propellants for spacecraft thrusters. A water solution of an ion substance, a fuel, and a stabilizer is used as a “green” propellant. Its feature is a significant increase in the temperature in the thruster reaction chamber in
Yu.V. Knyshenko, V.I. Shcherbakov
openaire   +1 more source

Vision‐Augmented Wearable Interfaces: Bioinspired Approaches for Realistic AI‐Human‐Machine Interaction

Advanced Materials Technologies, EarlyView.
This review presents recent progress in vision‐augmented wearable interfaces that combine artificial vision, soft wearable sensors, and exoskeletal robots. Inspired by biological visual systems, these technologies enable multimodal perception and intelligent human–machine interaction.
Jihun Lee, Gwuidong Ryu, Kisoo Kim, Feng Xu, Won Gu Lee   +4 more
wiley   +1 more source

Stabilizer selection and formulation strategies for enhanced stability of single base nitrocellulose propellants: A review

Energetic Materials Frontiers
Stabilizers play a crucial role in preventing undesirable decomposition and degradation reactions of propellants, thus ensuring their long-term performance and safe storage.
Siti Nor Ain Rusly, Siti Hasnawati Jamal, Alinda Samsuri, Siti Aminah Mohd Noor, Khoirul Solehah Abdul Rahim   +4 more
doaj   +1 more source

Space shuttle main engine: Interactive design challenges [PDF]

, 1985
The operating requirements established by NASA for the SSME were considerably more demanding than those for earlier rocket engines used in the military launch vehicles or Apollo program.
Mccarty, J. P., Wood, B. K.
core   +1 more source

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

Advanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe, Sebastian Mettes, Eduardo Francke, Kenneth W. Allen, Yi Chen Mazumdar   +4 more
wiley   +1 more source