Design of the experimental vehicles demands a specific approach with regard to the above-standard requirements concerning vehicle aerodynamics, reduced rolling resistances and low-level fuel consumption of the vehicle engine.
For aircraft designed to fly mixed missions (i.e., at subsonic, transonic, and supersonic flight speeds) with low levels of fuel consumption, it is desirable to have an engine with the characteristics of both a high-bypass engine (for subsonic flight speed) and a low-bypass engine (for supersonic flight speed).
An analytical study was conducted to supplement recent high-pressure shock tube measurements of CH4/O2 ignition at elevated pressures (40 260 atm), low dilution levels (fuel plus oxidizer ≥30%), intermediate temperatures (1040 1500 K), and equivalence ratios as high as 6.
Uranium enriched to a low level can be used to fuel nuclear power stations like one Iran is building at the southern port of Bushehr.
"It may therefore be judicious for the UK to maintain a low level of engagement in thorium fuel cycle research and development by involvement in international collaborative research activities".
[University of Guelph] A low level of cooling water for fuel rods suggests that the damage to one of three stricken reactors at the Fukushima Daiichi plant in Japan could be worse than previously thought.
The released radioactivity is limited at a low level and the ability of fuel particles to retain fission products is not corrupted.
With the objective to reduce volume of waste in the HTR concept, it is very important to be able to separate the fuel from low level activity graphite representing a large volume.
Residing in exposed communities, current smoking, ex-smoking, use of paraffin as main residential cooking/heating fuel and low level of education emerged as independent significant risk factors for chronic respiratory symptoms and diseases.
When enriched to low levels, uranium can fuel reactors.
