The Europe’s NexT Reusable ArIaNe (ENTRAIN) study, performed by DLR, aims to fill this gap by providing a quantitative evaluation of options for a partially reusable European launch system, thereby establishing a solid technical foundation for future discussions. Although the study’s scope and it...
A Bruker Optics Alpha spectrophotometer in ATR mode was used, with a diamond crystal capable of scanning a sample area of 0.75 mm at a depth of approximately 1 micrometre. The spectrometer was equipped with a Pt/SiC globe source, a RockSolid interferometer (with gold mirrors), and a ...
a总感到压力大并容易发火的人,可能使体内阳气太重 Always felt pressure high and easy ignition person, possibly causes in vivo Yang spirit too to be heavy[translate] aAs per our MSN, we will charge your end Usd 30 for handling fees 根据我们的MSN,我们将充电您的末端Usd 30为处理费[translate] ...
Crazy Taxi(iOS, $5) – Put the key in the ignition and fire up your nostalgia.Crazy Taxiis a mobile rehash of one of the most memorable gaming experiences to come from Sega not featuring a blue hedgehog. Drive around town picking people up and dropping them off at their destination. It...
Experiments show that atomic-clusters, a nanometric form of matter possessing solid-like atom-density locally in a carrier gas2, absorb more than 80% of laser compared to laser-solid and laser-atomic gas3 interaction. Initially laser field (above a critical strength) ionizes individual atoms of...
The spacecraft includes a safety circuit employing acceleration sensing switches which sense spin-up of the spacecraft and prevent premature ignition of the perigee boost motor. The spacecraft has imbedded within its envelope a solid-propellant perigee boost motor surrounded by a liquid-propellant ...
The Z-9 solid upper stage is injected in a Vega-like 150 km x 170 km transfer orbit, to be circularised to 800 km SSO by the AVUM module. By replacing the solid first stage with the reusable booster, an injected payload mass increase of about 20 %, with respect to the original ...
This article investigates the single particle fragmentation of three solid fuels in the early stages of combustion under dry and wet conventional and oxy-fuel conditions. The three solid fuels studied were a low rank sub-bituminous Colombian coal, a low-rank/high-ash sub-bituminous Brazilian coal...