Results 61 to 70 of about 2,217 (308)

Mechanically Spatio‐Chimeric Fibrin Assembly Enables Vascular‐Integrated Muscle Reconstruction for Volumetric Muscle Loss Repair

Advanced Materials, EarlyView.
SPARC (spatio‐chimeric, plasma‐based, anisotropic, and shear‐responsive construct) that integrates myogenic and vascular microenvironments within a single construct. The dual‐modulus matrix directs aligned myotube formation and endothelial network development, enabling a vascularized muscle implant that seamlessly anastomoses with host tissue and ...
Su Hyun Jung, Minjun Kim, Da‐Yoon Kim, Min Kyu Kim, Sieun Lee, Yoonhee Jin, Joo H. Kang   +6 more
wiley   +1 more source

A Reliable Method for Predicting the Specific Impulse of Chemical Propellants

Journal of Aerospace Technology and Management, 2018
The specific impulse (Isp) is an important performance parameter that describes energy efficiency of propellant combustion and is intimately related to the rocket engine thrust.
Dany Frem
doaj  

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Improving the Combustion Efficiency of Aluminum-Based Composite, Al@IL/FG, Through Surface Activation Reaction

Nanomaterials
Low combustion efficiency is a challenge of aluminum (Al) particles in solid propellants, especially in small solid rocket motors. Therefore, it is necessary to adjust the combustion performance of Al to improve the energy release of solid propellants ...
Qi-Long Zheng, Zhi-Lei Huang, Hui-Xiang Xu, Ji-Zhen Li, Wei He   +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  

A whole life assessment of extruded double base propellants

, 2013
© Cranfield UniversityThe manufacturing process for solventless extruded double base propellants involves a number of rolling and reworking stages. Throughout these processes a decrease in weight average molecular weight was observed, this was attributed
Tucker, J
core  

Fully resolved simulations of micro-unit composite fuel in solid propellants: Al@AP

Micro-unit composite fuel (Al@AP) is a promising strategy for achieving controllable combustion, due to its reduced pressure dependency and ability to prevent agglomeration.
Wen, Mingjie, Luo, Kai Hong, Chu, Qingzhao, Chang, Xiaoya, Chen, Dongping   +4 more
core   +1 more source

Temperature Sensitivity Of Composite Propellants Containing Novel Nano-Additive Catalysts

, 2018
Recent synthesis methods developed by the authors for producing titania premixed in the binder or grown in situ produce 20-nm-sized particles homogeneously distributed within the binder.
Petersen, Eric L., Allen, Tyler W., Sammet, Thomas, Dillier, Catherine, Demko, Andrew R.   +4 more
core   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

Combustion performance studies of aluminum and boron based composite solid propellants in sub-atmospheric pressure regimes

Propulsion and Power Research, 2019
The aim of present study is to investigate the burning rate, ignition delay, and flame characteristics of ammonium perchlorate (AP)-hydroxyl terminated poly-butadiene (HTPB) [AP/HTPB] based composite propellants (CSP's) in sub-atmospheric pressure ...
Pratim Kumar, Mayank Varshney, Aniket Manash   +2 more
doaj   +1 more source