Results 101 to 110 of about 129,630 (391)

Passive propellant system [PDF]

The system utilizes a spherical tank structure A separated into two equal volume compartments by a flat bulkhead B. Each compartment has four similar gallery channel legs located in the principal vehicle axes, ensuring that bulk propellant will contact ...
Hess, D. A., Jacobs, V. L., Regnier, W. W.   +2 more
core   +1 more source

Hot wire liquid level detector for cryogenic fluids Patent [PDF]

, 1966
Hot-wire liquid level detector for cryogenic ...
Olsen, W. A., Jr.
core   +1 more source

Effect of cyclic loads on structural damage of rocket propellant grain [PDF]

, 2019
Nikola Gligorijević, Vesna Rodić, Bojan Pavković, Jovica Bogdanov, Saša Živković, Zoran Bajić   +5 more
openalex   +1 more source

Drug‐Free Thrombolysis Mediated by Physically Activated Micro/Nanoparticles

Advanced Functional Materials, EarlyView.
Overview of particle‐mediated thrombolytic effects (thermal, mechanical, and chemical) and their activating physical stimuli (light, ultrasound, and magnetic field) in drug‐free thrombolysis. ABSTRACT Thrombus‐associated disorders rank among the world's leading causes of death, with ischemic heart disease and stroke as the main contributors.
Pierre Sarfati, Yoann Lalatonne, Cédric Chauvierre   +2 more
wiley   +1 more source

Propellant-remaining modeling [PDF]

A successful satellite mission is predicted upon the proper maintenance of the spacecraft's orbit and attitude. One requirement for planning and predicting the orbit and attitude is the accurate estimation of the propellant remaining onboard the ...
Torgovitsky, S.
core   +1 more source

Design and trade-offs of a pole-sitter mission [PDF]

, 2013
This paper provides a mission analysis and systems design of a pole-sitter mission, i.e. a spacecraft that is continuously above an Earth Pole, and can provide real-time, continuous and hemispherical coverage of the polar regions.
Ceriotti, Matteo, Heiligers, Jeannette, McInnes, Colin Robert   +2 more
core   +2 more sources

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

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

A Quantitative Printability Framework for Programmable Assembly of Pre‐Vascular Patterns via Laser‐Induced Forward Transfer

Advanced Healthcare Materials, EarlyView.
Laser‐Induced Forward Transfer (LIFT) is presented as a powerful micropatterning tool. An objective printability framework is developed to assess optimal printing parameter combinations. The technology is further explored for its ability to deterministically deposit microdroplets at predefined locations following CAD designs, enabling the patterning of
Cécile Bosmans, Núria Ginés Rodriguez, Ulisses Jesús Gutiérrez Hernández, David Fernandez Rivas, Marcel Karperien, Jos Malda, Liliana Moreira Teixeira, Riccardo Levato, Jeroen Leijten   +8 more
wiley   +1 more source

Fluid thrust control system [PDF]

, 1968
A pure fluid thrust control system is described for a pump-fed, regeneratively cooled liquid propellant rocket engine. A proportional fluid amplifier and a bistable fluid amplifier control overshoot in the starting of the engine and take it to a ...
Howell, W. L., Jansen, H. B., Lehmann, E. N.   +2 more
core   +1 more source