16. Propellant elimination actions should also be designed to relieve high pressure gases employed in pressure fed propulsion systems.

17. The principal energy source of upper stage break ups clearly appears to be residual propellants, whether in the form of hypergolics, cryogenics, monopropellants or simple oxidizers.

Switzerland reports restrictions on the use of HFCs and PFCs as aerosol propellants and extinguishing agents in fire protection equipment.

(b) Reactor NPS as sources of electricity (NPUs and NPPUs for energy systems) and power (NPUs plus electrojet propulsion systems, NPPUs for power systems and rocket propulsion technology) with ejection of the propellant (plasmas of inert gas, hydrogen or hydrogen bearing coolants) into space.

They are unguided and use solid propellant motors.

21. NASDA has implemented the draining of residual propellants (LOX, LH2, N2H4) and residual helium gas of the second stage of the H I and H II launcher.

(i) The use of solid propulsion in orbit is prohibited (they create clouds of aluminium particles)

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In 1992, a solid propellant rocket launched a winged vehicle into the upper atmosphere from a balloon floating at high altitude. It performed the first Japanese controlled aerodynamic re entry flight.

Residual propellant elimination is normally accomplished by initiating depletion burns or simply venting propellant tanks.

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For some chemical reactions it is important that the solvent is gas free. To achieve this the reaction vessel is put for some time into a ultrasonic bath. Due to the high sound frequency, the vapor locks peel away and ascend. This procedure is called out gassing.

C. Space debris reduction practices NASDA has implemented the draining of residual propellants (LOX, LH2, N2H4) and residual helium gas of the H I H II second stage.

All equipment and raw materials were removed from the Mamoun site, where all solid propellant was produced.

jet propulsion systems

A propellant uncertainty margin is used to hold back on board propellant reserves and guarantee that satellites are not stranded in orbit.

Additional propellant or electrical power resources may be needed.

In order to avoid significant accidental debris creation, the National Space Development Agency (NASDA) of Japan has implemented provisions for the draining of residual propellants (liquid oxygen (LOX), liquid hydrogen (LH2), N2H4) and the residual helium gas of the H I and H II second stage.

This system is designed to release, after separation of the satellite, the residual propellant from the tank and the residual gas from the high pressure container in the booster, in order to avert the danger of in orbit disintegration of the upper stage.

A further proposal is the passivation of spent rocket stages and space objects remaining in orbit, i.e. the freeing from tanks and balloons on rocket stages and space objects of propellant components and gases which could cause the explosion of the tank (or balloon) and break up of the object even after a considerable period of time has elapsed.

The second is more than 90 percent of the weight of a vehicle is in propellant.

13. Perhaps the first significant debris reduction policy has been the requirement of the National Aeronautics and Space Administration (NASA) of the United States of America for the venting of unspent propellants and gases from Delta upper stages to prevent explosions caused by the mixing of fuel residues.

However, it requires planning and reserving the necessary propellant resources to effect the manoeuvre.

I go to JPL.

Because there is not so much propellant to offset the high speed, the slowdown should rely on the atmosphere of the Mars while landing the Mars. However, it is quite difficult to simulate the atmosphere of the Mars on earth.

The Japanese space agency NASDA has implemented the draining of residual propellants (LOX, LH2, N2H4) and residual helium gas of the second stage of the H I H II launcher.

When the tank structure failed, the propellants ignited and the stage exploded.

Detailed satellite propellant budgets are maintained, including a record of all manoeuvres.

When you exhale your breath, it goes in the exhale counterlung when you inhale a breath, it comes from the inhale counterlung.

The precise nature of the amount and distribution of these slag ejecta are unclear, and the improvement of solid propellant and motor insulation to minimize the released solids is difficult.

In order to avoid significant accidental debris creation, NASDA has implemented draining of residual propellants (LOX, LH2, N2H4) and the residual helium gas of the H I H II second stage.

Rockets often spiral out of control if you put too much propellant in them.

In order to promote the early implementation of a pilot greenhouse gas emissions trading system, UNCTAD and the Earth Council recently launched the Policy Forum on Greenhouse Gas Emissions Trading.

Consideration of the effect of these forces can minimize the cost of active control of liquid propellant stages and is a low cost technique for the disposal of solid rocket motor stages.

Consideration of the effect of these forces can minimize the cost of active control of liquid propellant stages and is a low cost technique for the disposal of solid rocket motor stages.

(a) In the case of a single launch, the orbiter must be rendered passive, which means that residual propellants, including the performance reserve and the propellants used in the attitude control system, must have been emptied and the tanks depressurized

I like this equipment, you know, and I really value it so we're not going to burn the gear.

Greenhouse gases are released from certain fertilizers and pesticide inputs, and from the clearing and converting of non agricultural lands.

Mathematical models are employed to calculate propellant usage and predict remaining reserves.

(d) Propellant, pressurized fluids and stored electrical and mechanical energy that remain in orbital systems and elements at the end of mission should be safely dissipated.

This can normally be accomplished by keeping propellant lines and vents open for longer periods.

The performance cost to reboost is 3.64 m s for each 100 km or 1.69 kg of propellant for each 1,000 kg of spacecraft mass.

Teddy was furious when he found out I'd taken tranquilisers.

Considering, in this respect, that the present international climate should give additional impetus to multilateral negotiations with the aim of reaching concrete agreements,

Considering, in this respect, that the present international climate should give additional impetus to multilateral negotiations with the aim of reaching concrete agreements,