Results 71 to 80 of about 1,546,701 (274)

Research progress of click chemistry in polymers for solid propellants

Defence Technology
In recent years, click chemistry has shown significant potential in the design and performance optimization of polymers for solid propellants, owing to its high efficiency, modularity, and superior selectivity.
Xiaoyan Zhang, Jiaqi Wei, Shixuan Wu, Jingwei Hao, Guangpu Zhang   +4 more
doaj   +1 more source

Cast composite solid propellants with different combustion stabilizers [PDF]

Scientific Technical Review, 2015
The effect of four different compounds as the combustion stabilizers of composite solid propellants based on the AP/HTPB/IPDI has been presented in this paper.
Rodić Vesna, Dimić Mirjana, Brzić Saša, Gligorijević Nikola   +3 more
doaj  

Droplet Burning of JP-8/Silica Gels [PDF]

, 2010
For future high performance rocket launchers, gelled propellants have the potential to replace conventional solid and liquid fuels by combining the individual advantages of both systems and neglecting the most disadvantages at the same time.
Richard Arnold, Anderson, W. E., William Anderson, Arnold, R.   +3 more
core   +1 more source

MIR/NIR/FIR characterization of Poly-AMMO and Poly-BAMO and their precursors as energetic binders to the used in solid propellants

, 2022
S.395-400To establish the relation between structure and properties of composite solid propellants it is important to know the structure of the elastomeric binder that has been used in the system.
Diniz, M.F., Kawamoto, A.M., Oliveira, J.I.S. de, Keicher, Thomas, Dutra, R.C.L.   +4 more
core   +1 more source

Microfabrication of Soft Millirobots Propelled by Low Voltage Electrohydraulic Actuators

Advanced Materials Technologies, EarlyView.
Manual layer‐by‐layer assembly is replaced by wafer‐level MEMS batch fabrication for compliant polymer‐based electrohydraulic actuators. The microfabricated devices integrate sacrificially defined microcavities, Parylene‐C‐sealed inlets, and multilayer polymer–metal films.
Shai Shmulevich, Florian Hartmann, Herbert Shea   +2 more
wiley   +1 more source

Photoluminescent Color Centers on a Mainstream Silicon Photonic Foundry Platform

Advanced Optical Materials, EarlyView.
Silicon photonic chips route and process light efficiently but are inherently inefficient at generating it. Here, bright light‐emitting defects, W‐centers, are written into the silicon layer of finished chips from a mainstream commercial foundry: high‐energy ions are implanted straight through the protective oxide and activated by a 250∘C$^\circ{\rm C}$
Prosper Dellah Allo, A. Aadhi, Amirhossein Mosaddegh Yengejeh, Hazel Bakajsza, Mirabel N. M. Mensah, Marcus Tamura, Bhavin J. Shastri, Alexander N. Tait   +7 more
wiley   +1 more source

Redefining the Minimal Editable Unit of Supramolecular Synthons: A 1→2 Lattice-Editing Strategy in Ternary Multicomponent Crystals. [PDF]

Adv Sci (Weinh)
Inspired by skeletal editing, we propose a lattice‐editing strategy that extends the minimal editable unit in supramolecular crystals from individual components to local supramolecular structural units, enabling non‐stoichiometric one‐to‐many substitution while preserving the parent lattice architecture.
Lin Z, Xia H, Li M, Wang R, Wang Y, Feng X, Tang M, Zhang Y, Zhang Q.   +8 more
europepmc   +2 more sources

Propellants

, 2022
31 S.The article contains sections titled: 1. Introduction 2. History 3. Classification of Propellants 3.1. Solid Propellants 3.1.1. NC-Based Propellants 3.1.2. Composite Propellants 3.2. Liquid and Gelled Propellants 4.
Gettwert, Volker, Schubert, Hiltmar, Bohn, Manfred   +2 more
core   +1 more source

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

Advanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang, J. An, X. Zheng, D. Wang, S. Wang, X. Wang, P. Zhu, J. Pei, S. Li, J. Paripurana, Y. Han, Z. Tang, X. Gan, Q. He, X. Ma   +14 more
wiley   +1 more source

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

Advanced 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