Results 71 to 80 of about 71,662 (290)
Space biomedicine‐oriented bioink and biomimetic blood‒brain barrier
Bioinks and bioprinting play a pivotal role in the successful delivery of cell models and the fabrication of tissue models for space biomedicine research. This study investigated the effects of hypergravity and vibration on two‐dimensional adherent cells and three‐dimensional embedded cells and provided methods for storing hybrid bioink and high ...
Ranran Yan +3 more
wiley +1 more source
Statistical derivation of design criteria for liquid rocket combustion instability Final report [PDF]
Statistical correlation between engine design and combustion stability in liquid propellant rocket ...
Bastress, E. K. +2 more
core +1 more source
Abstract Forensic ballistics is essential in analyzing evidence from firearm use in criminal investigations, with gunshot residue (GSR) detection providing key information about the firearm and shooting conditions. Traditional methods like spectroscopy and scanning electron microscopy (SEM) have limitations in sensitivity, cost, and accessibility ...
Paulo Tonin +2 more
wiley +1 more source
Injector element characterization methodology [PDF]
Characterization of liquid rocket engine injector elements is an important part of the development process for rocket engine combustion devices. Modern nonintrusive instrumentation for flow velocity and spray droplet size measurement, and automated ...
Cox, George B., Jr.
core +1 more source
Cryogenic gel flow viscometer [PDF]
Coiled section of tubing measures viscous properties of gelled cryogenic propellants under conditions closely resembling flow in rocket engine systems. Characteristic flow curve provides data necessary for the design of prototype hardware systems using ...
Globus, R. H., Vanderwall, E. M.
core +1 more source
Abstract This study investigates how small and medium‐sized enterprises (SMEs) respond to deglobalization and economic nationalism, using historical evidence from fascist Italy, a period of autarky and restricted international trade. While prior research has focused primarily on larger firms, especially multinational enterprises (MNEs), the strategic ...
Valeria Giacomin, Francesco Romagnoli
wiley +1 more source
Annular rocket motor and nozzle configuration Patent [PDF]
High thrust annular liquid propellant rocket engine and exhaust nozzle ...
Connors, J. F.
core +1 more source
This paper presents the activities in the area of liquid propulsion, which received an effective boost at the end of the 90s.
Marco F. Carvalho Torres +4 more
doaj
Viability of an Electrically Driven Pump-Fed Hybrid Rocket for Small Launcher Upper Stages
An electrically driven pump-fed cycle for a hybrid rocket engine is proposed and compared to a simpler gas-pressurized feed system. A liquid-oxygen/paraffin-based fuel hybrid rocket engine which powers the third stage of a Vega-like launcher is ...
Lorenzo Casalino +2 more
doaj +1 more source
Erosion of granular sediments by submerged impinging jets: Particle size effects and cohesion onset
Abstract This study investigates the erosion behavior and modeling of glass particle beds under impinging jet conditions, with a focus on particle size effects and the onset of cohesion. Ultrasonic profiling is implemented to scan and measure static crater profiles.
Ahmad Mohamadiyeh +4 more
wiley +1 more source

