Results 51 to 60 of about 172,567 (366)
Satellite Thermal Management Pump Impeller Design and Optimization
This study presents a numerical approach to the design and optimization of centrifugal impellers used in the pumps of active thermal control systems of spacecraft.
Valeriu Drăgan+3 more
doaj +1 more source
Operation regimes in a rotating detonation combustor [PDF]
This paper presents an exploration of the operational envelope of a Rotating Detonation Combustor based on the design of the research group at the University of Southampton.
George Ionut VRABIE+5 more
doaj +1 more source
This paper presents the development, construction and testing of a new type of solar–thermal propulsion system which can be used for low earth orbit (LEO) satellites.
Constantin Sandu+6 more
doaj +1 more source
Unveiling the Corrosion Mechanisms of High‐Entropy RETaO4 Through In Situ Observation
Composition‐property relationships in multi‐component RETaO4 are unveiled. In situ XRD/TEM and EBSD expose dynamic crystallization pathways of the dominant corrosion product (pyrochlore) and reaction‐diffusion corrosion mechanisms. La1/6Nd1/6Sm1/6Eu1/6Gd1/6Dy1/6TaO4 emerges as the optimal composition, combining minimal corrosion layer thickness with ...
Zeyu Chen+7 more
wiley +1 more source
Emissions control for ground power gas turbines [PDF]
The similarities and differences of emissions reduction technology for aircraft and ground power gas turbines is described. The capability of this technology to reduce ground power emissions to meet existing and proposed emissions standards is presented ...
Anderson, D. N.+5 more
core +1 more source
Space and Time: Wind in an Investment Planning Model [PDF]
Investment planning models inform investment decisions and government policies. Current models do not capture the intermittent nature of renewable energy sources, restricting the applicability of the models for high penetrations of renewables. We provide
Butler, Lucy+7 more
core +2 more sources
CONTRIBUTIONS TO CONSOLE PROGRAMMING OF A ROBOTIC SYSTEM FOR WELDING AN OVERSIZED HEAT EXCHANGER
This paper first proposes to define the welding parameters of the GTAW (TIG/WIG) heat exchanger for a robotic system. The paper describes the first process of welding performed on the heat exchanger assembly, named pilot. An analysis will go through all
Andrei Mitru+4 more
doaj
Composite material designs for lightweight space packaging structures [PDF]
This paper presents a study on advanced material designs suitable for lightweight space packaging structures. During this study, several material designs were proposed, evaluated and in the end three packaging structures were designed, manufactured and ...
Mihaela Raluca CONDRUZ+6 more
doaj +1 more source
Use of advanced optical sensing techniques to track operando the physical and chemical changes of interfacial reactions in commercial type sodium‐ion cells. The nature of layered oxide cathode (O3 vs P2) influences the electrolyte reactivity and additives reduce the parasitic reactions.
Clémence Alphen+7 more
wiley +1 more source
Acoustic Analysis of a Hybrid Propulsion System for Drone Applications
This paper aims to conduct an acoustic analysis through noise measurements of a hybrid propulsion system intended for implementation on a drone, from which the main noise sources can be identified for further research on noise reduction techniques ...
Mădălin Dombrovschi+6 more
doaj +1 more source