Results 111 to 120 of about 80,023 (370)

Chemo‐Mechanical Coupling in Hydrogels: Dynamics in the Diffusion‐Limited Regime

Advanced Functional Materials, EarlyView.
A time‐dependent continuum model is developed to capture the transient swelling dynamics of chemo‐mechanical hydrogels. By coupling chemical reactions, solvent transport, and polymer deformation, volume phase transitions, reaction kinetics, and transient mechanical instabilities are analyzed.
Yao Xiong, Aaveg Aggarwal, Monica Olvera de la Cruz   +2 more
wiley   +1 more source

The Shuttle Orbital Maneuvering System P-V-T Propellant Quantity Gaging Accuracy and Leak Detection Allowance for Four Instrumentation Conditions [PDF]

The shuttle orbital maneuvering system (OMS) pressure-volume-temperature (P-V-T) propellant gaging module computes the quantity of usable OMS propellant remaining based on the real gas P-V-T relationship for the propellant tank pressurant, helium.
Duhon, D. D.
core   +1 more source

Edge‐Delocalized Electron Effect on Self‐Expediating Desolvation Kinetics for Low‐Temperature Li─S Batteries

Advanced Functional Materials, EarlyView.
The self‐transformed Schottky heterojunction on MXene is developed to facilitate the dissociation of Li (solvent)x+ to achieve fast Li+ desolvation to promote rapid sulfur conversion kinetics by decreasing the related barriers, contributing to high‐performance Li─S batteries under low‐temperatures.
Yongzheng Zhang, Xiang Li, Yanli Wang, Jianghao Zhu, Yinze Zuo, Xiaomin Cheng, Tao Rong, Jing Zhang, Yang Hu, Hongzhen Lin, Jian Wang, Liang Zhan, Licheng Ling   +12 more
wiley   +1 more source

High-nitrogen azotetrazole based pyrogen gas generating propellants: Aspects on synthesis, characterization, combustion characteristics and kinetics

FirePhysChem
Propellant formulations containing a novel high nitrogen azotetrazole salt viz., diammonium 5,5′-azotetrazolate (DAAzT) along with two different binders viz., hydroxyl terminated polybutadiene (HTPB) and glycidyl azide polymer (GAP) were realized as ...
Santhosh G, J. Anju, Supriya N, Sreejith M, Suraj S   +4 more
doaj  

Plasma Thruster with Diffusion Control Using Real-Time Simulations with Observer Structure and Ionising Radiation Caused by Electrodynamic Effects in the Accelerator Chamber

Havacılık ve Uzay Teknolojileri Dergisi, 2020
The script in this paper describes the use of propellant for plasma thrusters based on electrostatic accelerator. The generation and control of plasma is essential for the ion thrusters.
Alexander Norbach
doaj  

Microbubble‐Controlled Delivery of Biofilm‐Targeting Nanoparticles to Treat MRSA Infection

Advanced Functional Materials, EarlyView.
Here, an effective strategy using microbubble (MB)‐controlled delivery of biofilm‐targeting nanoparticles (BTNs) for removal and therapy of methicillin‐resistant Staphylococcus aureus (MRSA) biofilm infections is introduced. In vivo delivery of MB with BTN is demonstrated to silence key bacterial genes involved in biofilm formation (icaA), bacterial ...
Ju Yeon Chung, Yujin Ahn, Joo Hun Lee, Seungju Yang, Seung Cheol Lee, Hyunjoon Kong, Hyun Jung Chung   +6 more
wiley   +1 more source

Solid propellant burn rate characterization: Effect of copper chromite blend with oxidiser and its storage

FirePhysChem
This work details the study conducted on composite solid propellants with activated copper chromite (ACR) as burn catalyst for its burn rate change with time due to the interaction of ammonium perchlorate (AP) with ACR.
Sathiskumar PS, Alok Kumar Patel, Vinay Paliwal, Sojan P   +3 more
doaj  

Position Normalization of Propellant Grain Point Clouds

Aerospace
Point cloud data obtained from scanning propellant grains with 3D scanning equipment exhibit positional uncertainty in space, posing significant challenges for calculating the relevant parameters of the propellant grains.
Junchao Wang, Fengnian Tian, Renfu Li, Zhihui Li, Bin Zhang, Xuelong Si   +5 more
doaj   +1 more source

Acoustically propelled nanoshells

Nanoscale, 2016
Herein we report a new design for acoustic nanoswimmers, making use of a nanoshell geometry that was synthesized using a sphere template process. Such shell-shaped nanomotors display highly efficient acoustic propulsion on the nanoscale by converting energy from the ambient acoustic field into motion.
Soto, Fernando, Wagner, Gregory L, Garcia-Gradilla, Victor, Gillespie, Kyle T, Lakshmipathy, Deepak R, Karshalev, Emil, Angell, Chava, Chen, Yi, Wang, Joseph   +8 more
openaire   +5 more sources

Two-fluid, impinging-sheet injector [PDF]

, 1968
Two-fluid, impinging-sheet propellant injector reduces the severe erosion found to occur when ejector elements are directly exposed during throttling without the benefits of a cooling flow of the propellant liquids.
Riebling, R. W.
core   +1 more source