Results 91 to 100 of about 129,630 (391)

Propellant tank pressurization system Patent [PDF]

, 1965
Method and apparatus for pressurizing propellant tanks used in propulsion motor feed ...
Appel, M. A., Weitzel, D. F.
core   +1 more source

HYPERGOLIC SYSTEMS: A REVIEW IN PATENTS. doi: 10.5028/jatm.2012.04043812

Journal of Aerospace Technology and Management, 2012
Hypergolic reactions may be useful in civil and military applications. In the area of rocket propulsion, they constitute a potential field due to the reduced wheight and complexity of fuel injection systems, allowing yet controlled use of the propulsors.
Gilson da Silva, Koshun Iha
doaj  

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source

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  

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

Advanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha, Yingshan Ma, Yong Nam An, Sung‐Un An, Hyeon Hak Jung, Suvi‐Tuuli Varjamo, Jiwon Yoo, Junho Min, Hanvit Kim, Faisal Ahmed, Sang Hoon Chae, Young Min Song, Weiwei Cai, Tawfique Hasan, Zhipei Sun, Dong‐Ho Kang, Hyeon‐Jin Shin, Yunyun Dai, Hoon Hahn Yoon   +18 more
wiley   +1 more source

Register of specialized sources for information on selected fuels and oxidizers [PDF]

Thirty-eight (38) organizations are listed and described that catalog and file information in their data systems on fuel and oxidizers. The fuels include hydrogen, methane and hydrazine-type fuels; the oxidizers include oxygen, fluorine, flox, nitrogen ...
Ludtke, P. R.
core   +1 more source

ASSESSMENT OF THE SYNTHESIS ROUTES CONDITIONS FOR OBTAINING AMMONIUM DINITRAMIDE BY THE FT-IR. DOI: 10.5028/jatm.2011.03033311

Journal of Aerospace Technology and Management, 2012
Over the last two decades, many routes have been proposed to synthesize ammonium dinitramide (ADN). However, most of them lie in routes in which reactants are too expensive for large-scale production.
José Irineu Sampaio de Oliveira, Márcio Yuji Nagamachi, Milton Faria Diniz, Elizabeth da Costa Mattos, Rita Lazzarini Dutra   +4 more
doaj  

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

Advanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee, Osman Gul, Yeongjae Kwon, Jaeseok Jeong, Seokjoo Cho, Jihyeon Ahn, Jehee Yu, Cheolmin Kim, Donho Lee, Hyeonseok Han, Byeongju Lee, Jungrak Choi, Ji‐Hwan Ha, Yongrok Jeong, Kyungnam Kang, Ali Javey, Junseong Ahn, Inkyu Park   +17 more
wiley   +1 more source

Small rocket engine Patent [PDF]

, 1967
Regenerative cooling system for small rocket engine having restart capability and using noncryogenic hypergolic ...
Latto, W. T., Jr.
core   +1 more source

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

Advanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler, Jean‐Paul P.M. de Vries, Sarthak Misra, Venkatasubramanian Kalpathy Venkiteswaran   +3 more
wiley   +1 more source