2-Dimethyl amino ethyl azide (DMAZ) has attracted much attention as a suitable liquid fuel replacement for monomethyl hydrazine (MMH) and unsymmetrical dimethyl hydrazine (UDMH) in propellant systems because, in contrast to these fuels, it is noncarcinogen. In this research, performance, and ignition delay time of DMAZ were studied with common liquid oxidizers such as inhibited red fuming n...

A space transportation infrastructure is described that utilizes propellant depots to support all foreseeable missions in the Earth-Moon vicinity and deep space out to Mars. The infrastructure utilizes current expendable launch vehicles such as the Delta IV Heavy, Atlas V, and Falcon 9, for all crew, cargo, and propellant launches to orbit. Propellant launches are made to a Low-Earth-Orbit (LEO...

Respimat soft mist inhaler (SMI) is an producing a with low velocity. The liquid drug solution emitted by the mechanical energy of compressed spring, so device propellant-free. This paper describes measurement particle fraction penetrating through model upper respiratory tract (mouth cavity, pharynx, larynx trachea). inside cartridge was marked fluorescein in order to evaluate regional depositi...

To fully explore the breakup behavior of gel propellant in both macroscopical and microscopic scales, present study started from self-similarity analysis for a power-law liquid thread, transition viscocapillary to viscocapillary-inertia regime was identified by experimental verification, using high-speed photography technology image processing. Furthermore, dissipative particle dynamics method ...

Complexation of amines with borane converts them to hypergols or decreases their ignition delays (IDs) multifold (with white fuming nitric acid as the oxidant). With consistently low IDs, amine-boranes represent a class of compounds that can be promising alternatives to toxic hydrazine and its derivatives as propellants. A structure-hypergolicity relationship study reveals the necessary feature...