Results 101 to 110 of about 18,714 (310)

Porous Hybrid Soft Actuators From Liquid Crystal Networks and Lyotropic Chromonic Liquid Crystal Templated Hydrogels

Advanced Materials, EarlyView.
The graphic illustrates the design of a hybrid bilayer composed of a liquid crystal hydrogel (LCH) and a liquid crystal network (LCN). The figure highlights the magnetic alignment of the chromonic hydrogel and the thermal‐responsive actuation of the LCN along with the LCH when both layers are aligned or misaligned, enabling programmable, light‐driven ...
Ramón Santiago Herrera Restrepo, Irving Hafed Tejedor García, Matthew Gene Scarfo, Negin Bouzari, Negar Rajabi, Olga Bantysh, Joel Torres‐Andrés, Christopher W. V. James, Maria Guix, Amirreza Aghakhani, Jordi Ignés‐Mullol, Salvador Pané, Josep Puigmartí‐Luis, Hamed Shahsavan   +13 more
wiley   +1 more source

Synthesis of two novel neutral polymeric bonding agents to enhance the mechanical properties of composite solid propellants. [PDF]

RSC Adv, 2022
Wu Z, Zhang J, Xu S, Li H, Zhou H, Zheng J, Pang A, Yang Y.   +7 more
europepmc   +1 more source

A study of solid-propellant vaporization and diffusion processes Final technical report [PDF]

Vaporization rate and diffusion coefficient determined for organic additives to polyurethane solid propellants - dioctyl adipate and ...
Droege, J. W., King, R. W., Levy, A., Mc Nulty, J. S.   +3 more
core   +1 more source

Applications of Various Methods of Analysis to Combustion Instabilities in Solid Propellant Rockets [PDF]

, 1996
Instabilities of motions in a combustion chamber are consequences of the coupled dynamics of combustion processes and of the flow in the chamber. The extreme complexities of the problem always require approximations of various sorts to make progress in
Culick, F. E. C., Roh, T. S.
core  

Performance Constraints of All‐Perovskite Tandem Solar Cells in Low‐Intensity, Low‐Temperature Environments

Advanced Materials, EarlyView.
All‐perovskite tandem solar cells are evaluated under low‐intensity and low‐temperature (LILT) conditions relevant to space environments. Distinct loss regimes emerge, where weaker entropic mixing causes halide segragation below ≈240 K going along with a strong current imbalance, while poor electron transport in C60 dominates.
Sercan Ozen, Etienne Beier, Francisco Peña‐Camargo, Jarla Thiesbrummel, Gianluca Boccarella, Paria Forozi Sowmeeh, Martin Stolterfoht, Dieter Neher, Kai Oliver Brinkmann, Thomas Riedl, Felix Lang   +10 more
wiley   +1 more source

Study on the open-air NEPE solid propellant fire characteristics: Effect of altitude upon the flame performance through CFD

FirePhysChem
Solid propellant fires, characterized by uncontrolled combustion behaviors, are a common occurrence in industries that utilize solid propellants and can lead to significant consequences. However, there has been a lack of comprehensive studies on modeling
Li Yu, Yupeng Hu, Guangmei Shi, Minghai Li, Yanhong Zhang   +4 more
doaj   +1 more source

1-Methyl-4-R-1,2,4-triazolium (R = -CH₂CH₂OCH₃, -CH₂COOCH₂CH₃)-Based Ionic Liquids as Plasticizers for Solid Propellants. [PDF]

ACS Omega, 2023
Liu L, Bai J, Su Z, Yao Y, Zhou Z, Xia Y, Zhang Y.   +6 more
europepmc   +1 more source

Preparing oxidizer coated metal fuel particles [PDF]

, 1974
A solid propellant composition of improved efficiency is described which includes an oxidizer containing ammonium perchlorate, and a powered metal fuel, preferably aluminum or beryllium, in the form of a composite.
Shafer, J. I., Simmons, G. M.
core   +1 more source

Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation

Advanced Materials, EarlyView.
Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju, Roshan Velluvakandy, Xianghua Wu, Miguel Angel Merlos Rodrigo, Zbyněk Heger, Kamila Bendíčková, Jan Frič, Martin Pumera   +7 more
wiley   +1 more source

Wire-Based Solid-State Propellant Management System for Small Form-Factor Space Propulsion

Inventions
The development of dynamic missions of small satellites requires the development of efficient, compact, and reliable propulsion systems (PSs). This paper investigates a propellant storage and supply system (PSSS), utilizing alternative solid-state ...
Pavel O. Savelev, Andrei I. Shumeiko, Victor D. Telekh   +2 more
doaj   +1 more source