Results 41 to 50 of about 72,527 (347)

Study on the effect of RDX content on the properties of nitramine propellant

Defence Technology, 2017
Four kinds of nitroamine propellants with different RDX contents (10%, 20%, 30% and 40%) were prepared to study the effect of RDX content on the mechanical properties and combustion properties of nitroamine propellant.
Fen ZHANG, Deng-pan ZHU, Qiong LIU, Zhi-tao LIU, Ping DU   +4 more
doaj   +1 more source

Optimizing ideal ion propulsion systems depending on the nature of the propellant [PDF]

INCAS Bulletin, 2016
From all accounts the ion thrusters are characterized by the fact that they produce a very high exhaust velocity and specific impulse, sometimes too high for many missions.
Grigore CICAN, Ionut-Florian POPA
doaj   +1 more source

Data‐driven forecasting of ship motions in waves using machine learning and dynamic mode decomposition

International Journal of Adaptive Control and Signal Processing, EarlyView.
Summary Data‐driven forecasting of ship motions in waves is investigated through feedforward and recurrent neural networks as well as dynamic mode decomposition. The goal is to predict future ship motion variables based on past data collected on the field, using equation‐free approaches.
Matteo Diez, Mauro Gaggero, Andrea Serani   +2 more
wiley   +1 more source

On the screw propeller [PDF]

Journal of the Franklin Institute, 1883
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openaire   +2 more sources

The Regulation of Trace Metal Elements in Cancer Ferroptosis

Advanced Biology, EarlyView.
The induction of ferroptosis inhibits tumor growth, enhances anticancer efficacy, and overcomes drug resistance. Recent evidence shows nonferrous metal elements play a role in ferroptosis. This review focuses on how trace metals regulate ferroptosis processes like iron accumulation, lipid peroxidation, and antioxidant defense.
Xiaoyan Wang, Yuanyuan Xue, Lei Chang, Xuena Zhu, Wenjun Liu, Tingbo Liang   +5 more
wiley   +1 more source

On the Turbine Propeller [PDF]

Royal United Services Institution. Journal, 1871
n ...
openaire   +2 more sources

Hydrogel‐Based Capacitive Sensor Model for Ammonium Monitoring in Aquaculture

Advanced Engineering Materials, EarlyView.
Traditional techniques for monitoring aquaculture water quality, particularly ammonium levels, harm fish. This work presents a novel capacitive sensor with an ionic hydrogel transducer to monitor ammonium concentration in real time based on the ammonium‐induced hydrogel dissociation and osmotic pressure. Monitoring aquaculture water quality, especially
Mohammad Mirzaee, Mahdi Askari‐sedeh, Ali Zolfagharian, Mostafa Baghani   +3 more
wiley   +1 more source

Cryogenic propellant management in space: open challenges and perspectives

npj Microgravity
This paper presents open challenges and perspectives of propellant management for crewed deep space exploration. The most promising propellants are liquid hydrogen and liquid methane, together with liquid oxygen as an oxidizer. These fluids remain liquid
Alessia Simonini, Michael Dreyer, Annafederica Urbano, Francesco Sanfedino, Takehiro Himeno, Philipp Behruzi, Marc Avila, Jorge Pinho, Laura Peveroni, Jean-Baptiste Gouriet   +9 more
doaj   +1 more source

Effect of Microstructure on Micro-Mechanical Properties of Composite Solid Propellant

Micromachines, 2021
This study was aimed at determining the effect of microstructure on the macro-mechanical behavior of a composite solid propellant. The microstructure model of a composite solid propellant was generated using molecular dynamics algorithm.
Tianpeng Li, Jinsheng Xu, Junli Han, Yong He   +3 more
doaj   +1 more source

Electric Solid Propellant Ablation in an Arc Discharge

Journal of Propulsion and Power, 2019
Electric solid propellants are advanced solid chemical rocket propellants that can be controlled (ignited, throttled, and extinguished) through the application and removal of an electric current.
M. S. Glascock, J. Rovey, K. Polzin
semanticscholar   +1 more source