Results 81 to 90 of about 18,714 (310)

Monitor for physical property changes in solid propellants [PDF]

, 1973
Specially designed sensor is attached to or imbedded in propellant. When sensor is driven into vibration, it moves with a phase lag directly proportional to internal friction or loss coefficent.
Black, R. E., Jr.
core   +1 more source

Nb2C‐Reinforced Hydrogel Microneedle as Dual ROS‐Scavenging Platform to Promote Diabetic Wound Healing

Advanced Healthcare Materials, EarlyView.
An advanced microneedle patch integrating niobium carbide nanosheets and curcumin is engineered for diabetic wound healing. The system enables dual ROS scavenging and NIR‐enhanced antimicrobial activity, effectively rebalancing the oxidative microenvironment, promoting macrophage repolarization and angiogenesis, and accelerating full‐thickness wound ...
Zhi Zheng, Heyan Huang, Xiangru Chen, Jie Fu, Zhiwei Sun, Mengjuan Tao, Jianwei Mao, Fei Zhang, Zhou Wan, Yuan Li, Dingan Wu, Chuchao Zhou, Yanqing Yang   +12 more
wiley   +1 more source

The Application of the Particle Element Method in Tubular Propellant Charge Structure: Lumped Element Method and Multiple-Element Method

Energies
Due to the orderly arrangement of tubular propellant, the permeability of combustion gases is improved, which is beneficial for enhancing the safety of the combustion system.
Ruyi Tao, Shenshen Cheng, Xinggan Lu, Shao Xue, Xiaoting Cui   +4 more
doaj   +1 more source

Combustion engine for solid and liquid fuels [PDF]

A combustion engine having no piston, a single cylinder, and a dual-action, that is applicable for solid and liquid fuels and propellants, and that functions according to the principle of annealing point ignition is presented.
Pabst, W.
core   +1 more source

Numerical analysis of transient combustion response to acoustic oscillations in axisymmetric rocket motors [PDF]

, 1998
A numerical analysis of unsteady motions in solid rocket motors with a nozzle has been conducted. The formulation treats the complete conservation equations for the gas phase and the one-dimensional equations in the radial direction for the condensed
Culick, F. E. C., Roh, T. S.
core   +1 more source

Unveiling the Role of Curvature in Carbon for Improved Energy Release of Ammonium Perchlorate

Advanced Materials, EarlyView.
High‐curvature carbon materials identified via machine learning and simulation can enhance the heat release and combustion performance of ammonium perchlorate. ABSTRACT The catalytic role of carbon curvature in the thermal decomposition of ammonium perchlorate (AP) remains largely unexplored. To address this gap, this study employs machine learning and
Dan Liu, Keliang Song, Haorui Zhang, Zhipeng Liu, Guansong He, Junru Wang, Wenming Yang, Xu Zhao, Zhijian Yang   +8 more
wiley   +1 more source

Ferrocene-fullerene dyad as a novel burn rate modifier for propellants

Energetic Materials Frontiers
The burn rate of composite rocket propellants serves as a critical ballistic parameter in the construction of a rocket engine. Due to their large surface areas, carbon-based materials such as carbon nanotubes, graphene, and fullerene have demonstrated ...
Shrutika Sriramrao, Parveen Raman, Akash Dhas, Shaibal Banerjee   +3 more
doaj   +1 more source

WLF equation theoretical basis analysis and a method for determining the shift factor in solid propelants

Vojnotehnički Glasnik, 1996
In order to verify the WLF equation theoretical basis and its universal character, free volumes of several types of solid propellants were measured and the values of empirical constants were analysed.
Radun Jeremić
doaj   +1 more source

Review of the Mechanical Properties and Numerical Simulation of Composite Solid Propellants. [PDF]

Materials (Basel), 2023
Wang J, Cao P, Wang X.
europepmc   +1 more source

Review of solid propellants for space exploration [PDF]

Solid propellants for space vehicles and spacecraft fuel ...
Hendel, F. J.
core   +1 more source